A sampling device for detecting soil environmental pollution
Patent Information
- Application Number
- CN202522314102.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-10-31
AI Technical Summary
[0003]传统采样装置的取样部件与动力部件多采用螺栓连接或焊接固定，组装时需借助扳手等工具，操作步骤复杂；若需更换不同规格的取样部件，拆卸耗时久，增加了现场采样的准备时间，多数传统装置依赖人工手动下压或旋转钻入土壤，对于土壤质地较硬、含有根系或碎石的区域，人工操作强度大，不仅难以保证取样深度的一致性，还会大幅降低采样效率，尤其不适用于大面积多点位的采样工作
一、该土壤环境污染检测用采样装置中连接组件通过“弹性卡合+定位贯穿”实现快速组装：按压卡板即可使卡块收缩，对准凸起环与凹槽、孔与贯穿杆插入后，弹簧自动复位使卡块卡入卡槽，无需任何工具，单人即可完成组装，大幅缩短准备时间，双重固定结构（卡块与卡槽卡合、贯穿杆贯穿孔）配合限位杆对卡板的导向作用，可有效避免取样筒在旋转过程中脱落或打滑，保证连接稳定性，提升采样过程的安全性。
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Figure CN224921458U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of soil environmental pollution detection technology, and more specifically, it relates to a sampling device for soil environmental pollution detection. Background Technology
[0002] Soil environmental pollution detection is an important part of environmental monitoring and is of great significance for assessing soil quality, preventing and controlling pollution, and ecological restoration.
[0003] Traditional sampling devices often use bolts or welding to connect and fix the sampling and power components, requiring tools such as wrenches for assembly and making the process complex. Replacing sampling components with different specifications is time-consuming, increasing preparation time for on-site sampling. Most traditional devices rely on manual pressing or rotating to drill into the soil, which is physically demanding in areas with hard soil, roots, or gravel, making it difficult to ensure consistent sampling depth and significantly reducing sampling efficiency. This makes them particularly unsuitable for large-area, multi-point sampling. Therefore, there is an urgent need to research and improve soil sampling devices to address the problems of cumbersome assembly and laborious drilling, thereby enhancing the practicality and efficiency of soil environmental pollution detection and sampling. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a sampling device for soil environmental pollution detection, which is achieved by the following specific technical means: A sampling device for detecting soil environmental pollution includes a handle and a sampling tube. A drive motor is installed on the handle. The sampling tube has a hollow interior and a discharge port on its side. A connecting assembly is provided between the sampling tube and the output shaft of the drive motor. The connecting assembly includes a circular plate, a clamping plate, and a rotating plate. The circular plate is fixedly installed on the upper end of the sampling tube, and the rotating plate is fixedly installed on the bottom end of the output shaft. A raised ring is provided in the middle of the upper end of the circular plate. A groove adapted to the raised ring is provided on the bottom surface of the rotating plate. The raised ring is inserted into the groove. Slots are provided on both sides of the inner wall of the groove. Two clamping plates are provided in the raised ring. A clamping block is fixedly installed at each opposite end of the two clamping plates. The two clamping blocks are respectively engaged in the slots.
[0005] Furthermore, the bottoms of the two card plates are movably inserted into the sampling cylinder, and two limiting rods movably pass through the two card plates. Each limiting rod is movably fitted with a spring, and the two card plates are fixedly connected by the two springs.
[0006] Furthermore, one of the limiting rods is fixedly installed on the inner wall of the protruding ring, and the other limiting rod is fixedly installed on the inner wall of the sampling cylinder.
[0007] Furthermore, four positioning holes are equidistantly opened on the upper surface of the circular plate, and through rods of the same number as the positioning holes are fixedly installed equidistantly on the bottom end of the rotating plate, with each through rod movably passing through a positioning hole.
[0008] Furthermore, a ring of teeth is provided at the bottom edge of the sampling cylinder.
[0009] Furthermore, a connecting plate is fixedly installed in the middle of the handle, and the drive motor is fixedly installed in the middle of the upper part of the connecting plate, with the output shaft of the drive motor movably passing through the connecting plate.
[0010] Compared with the prior art, the present invention has the following beneficial effects: I. The connecting components in this soil environmental pollution detection sampling device achieve rapid assembly through "elastic engagement + positioning penetration": pressing the card plate causes the card block to retract. After aligning the protruding ring with the groove, and inserting the hole with the penetrating rod, the spring automatically resets, causing the card block to engage with the slot. No tools are required, and assembly can be completed by a single person, significantly shortening preparation time. The dual fixing structure (card block engaging with the slot, penetrating rod penetrating the hole) combined with the guiding effect of the limiting rod on the card plate can effectively prevent the sampling tube from falling off or slipping during rotation, ensuring connection stability and improving the safety of the sampling process.
[0011] 2. The drive motor is fixed to the handle via a connecting plate, which can directly drive the rotating plate, circular plate and sampling cylinder to rotate at high speed, replacing manual labor and reducing the labor intensity of operators. At the same time, it ensures the stable rotation speed of the sampling cylinder and ensures consistent sampling depth. The teeth at the bottom of the sampling cylinder can quickly cut off the roots, weeds or crush small stones on the soil surface, greatly reducing the resistance of the sampling cylinder to drilling into the soil. This makes the device suitable for various soil textures such as clay soil and loam, improving the environmental adaptability and drilling efficiency of the device.
[0012] Third, the hollow sampling tube automatically retains the sample through negative pressure and soil viscosity, and the side wall outlet can directly discharge the soil without disassembling the device, simplifying the process from sampling to testing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall sampling device for soil environmental pollution detection according to this utility model.
[0014] Figure 2 This is a schematic diagram showing the cross-section of the circular plate and the raised ring of this utility model.
[0015] Figure 3 This is a schematic diagram of the sampling tube of this utility model.
[0016] Figure 4 This is a schematic diagram of the rotating plate of this utility model cut open.
[0017] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Handle; 11. Connecting plate; 2. Sampling cylinder; 21. Tooth; 22. Discharge port; 3. Circular plate; 31. Protruding ring; 32. Positioning hole; 4. Clamping plate; 41. Clamping block; 42. Limiting rod; 43. Spring; 5. Rotating plate; 51. Groove; 52. Slot; 53. Through rod; 6. Drive motor. Detailed Implementation
[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0019] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] Example: As attached Figure 1 To be continued Figure 4 As shown: This utility model provides a sampling device for soil environmental pollution detection, including a handle 1 and a sampling cylinder 2. A drive motor 6 is installed on the handle 1. The sampling cylinder 2 has a hollow interior and an outlet 22 on its side. A connecting assembly is provided between the sampling cylinder 2 and the output shaft of the drive motor 6. The connecting assembly includes a circular plate 3, a clamping plate 4, and a rotating plate 5. The circular plate 3 is fixedly installed on the upper end of the sampling cylinder 2, and the rotating plate 5 is fixedly installed on the bottom end of the output shaft. A protruding ring 31 is provided in the middle of the upper end of the circular plate 3. A groove 51 adapted to the protruding ring 31 is provided on the bottom surface of the rotating plate 5. The protruding ring 31 is inserted into the groove 51. A slot 52 is provided on both sides of the inner wall of the groove 51. Two clamping plates 4 are provided in the protruding ring 31. A clamping block 41 is fixedly installed at both opposite ends of the two clamping plates 4. The two clamping blocks 41 are respectively clamped into the slot 52. The bottoms of the two clamping plates 4 are movably inserted into the sampling cylinder 2. Two limiting rods 42 are movably passed between the two clamping plates 4. Each limiting rod 42 is movably fitted with a spring 43. The two clamping plates 4 are fixedly connected by the two springs 43, storing elastic potential energy for subsequent reset and locking. One limiting rod 42 is fixedly installed on the inner wall of the protruding ring 31, and the other limiting rod 42 is fixedly installed on the inner wall of the sampling cylinder 2 to ensure that the moving direction of the clamping plate 4 is stable. The upper surface of the circular plate 3 is provided with four positioning holes 32 at equal intervals around the circumference. The bottom end of the rotating plate 5 is fixedly installed with the same number of through rods 53 as the positioning holes 32. Each through rod 53 moves through the positioning hole 32. The through rod 53 is inserted into the positioning hole 32. The cooperation between the through rod 53 and the positioning hole 32 plays a role in precise positioning and avoids angular deviation during assembly. A ring of teeth 21 is provided at the bottom edge of the sampling tube 2. During rotation, the teeth 21 can quickly cut off the roots or hard clods on the soil surface, reduce the resistance of the sampling tube 2 to drilling into the soil, and make the sampling tube 2 drill into the soil more smoothly and vertically. A connecting plate 11 is fixedly installed in the middle of the handle 1, and a drive motor 6 is fixedly installed in the middle of the upper end of the connecting plate 11. The output shaft of the drive motor 6 moves through the connecting plate 11.
[0022] The working principle of this embodiment: Step 1: The operator manually presses the two clamping plates 4, causing them to move closer to each other along the limiting rods 42 (one limiting rod 42 is fixed to the inner wall of the protruding ring 31, and the other limiting rod 42 is fixed to the inner wall of the sampling cylinder 2 to ensure the stability of the movement direction of the clamping plates 4). During this process, the clamping blocks 41 at both ends of the clamping plates 4 move closer to each other synchronously, while compressing the springs 43 sleeved on the limiting rods 42 to store elastic potential energy for subsequent reset and engagement. The protruding ring 31 of the upper circular plate 3 of the sampling cylinder 2 is aligned with the groove 51 of the rotating plate 5 at the bottom of the output shaft of the drive motor 6. At the same time, the four positioning holes 32 equidistantly opened on the circumference of the upper surface of the circular plate 3 are aligned with the four through rods 53 equidistantly fixed on the circumference of the bottom of the rotating plate 5. One by one, the protruding ring 31 is inserted into the groove 51 and the through rod 53 is inserted into the positioning hole 32. The cooperation between the through rod 53 and the positioning hole 32 plays a role in precise positioning and avoids angular deviation during assembly. After the protruding ring 31 is fully inserted into the groove 51, the pressed clamping plate 4 is released. At this time, the spring 43 releases its elastic potential energy and pushes the two clamping plates 4 to reset in the opposite direction, causing the clamping blocks 41 to be respectively inserted into the grooves 52 on both sides of the inner wall of the groove 51. At the same time, the through rod 53 completely penetrates the positioning hole 32, forming a double fixing structure of "clamping block 41-groove 52" + "through rod 53-positioning hole 32", which completely locks the connection between the sampling cylinder 2 and the rotating plate 5 and prevents it from falling off or slipping during subsequent rotation. Step 2: After assembly, start the drive motor 6 on handle 1 (a connecting plate 11 is fixed in the middle of handle 1, the drive motor 6 is fixed in the middle of the upper end of the connecting plate 11, and the output shaft of the drive motor 6 moves through the connecting plate 11). The output shaft of the drive motor 6 drives the rotating plate 5 to rotate at high speed. The rotating plate 5 is rigidly connected to the circular plate 3 through the through rod 53, which synchronously drives the circular plate 3 and the sampling cylinder 2 below to rotate. The bottom edge of the sampling cylinder 2 is provided with a ring of teeth 21. During the rotation, the teeth 21 can quickly cut off the roots or hard clods on the soil surface, reduce the resistance of the sampling cylinder 2 to drilling into the soil, and make the sampling cylinder 2 drill into the soil more smoothly and vertically until the preset sampling depth is reached. Then, the drive motor 6 is turned off, and the operator pulls the handle 1 upward to pull the sampling cylinder 2 out of the soil. Since the sampling cylinder 2 is hollow, the soil will fill the inside of the sampling cylinder 2 under the combined action of "negative pressure + soil viscosity" and leave the original soil environment with the sampling cylinder 2. The sampling cylinder 2 is transferred to the top of the detection container, and the soil can be directly taken out from the discharge port 22 opened on the side of the sampling cylinder 2. The sample collection can be completed without disassembling the sampling cylinder 2, which simplifies the sample transfer steps before subsequent detection.
[0023] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A sampling device for detecting soil environmental pollution, comprising a handle (1) and a sampling tube (2), characterized in that: The handle (1) is equipped with a drive motor (6), the sampling tube (2) is hollow inside, and the sampling tube (2) has an outlet (22) on its side. A connecting assembly is provided between the sampling cylinder (2) and the output shaft of the drive motor (6). The connecting assembly includes a circular plate (3), a clamping plate (4), and a rotating plate (5). The circular plate (3) is fixedly installed on the upper end of the sampling cylinder (2), and the rotating plate (5) is fixedly installed on the bottom end of the output shaft. A protruding ring (31) is provided in the middle of the upper end of the circular plate (3). A groove (51) adapted to the protruding ring (31) is opened on the bottom surface of the rotating plate (5). The protruding ring (31) is inserted into the groove (51). A clamping groove (52) is opened on both sides of the inner wall of the groove (51). Two clamping plates (4) are provided in the protruding ring (31). In this case, two card plates (4) are fixedly installed with card blocks (41) at opposite ends, and the two card blocks (41) are respectively inserted into the card slots (52).
2. The sampling device for soil environmental pollution detection as described in claim 1, characterized in that: The bottom of the two card plates (4) are movably inserted into the sampling tube (2), and two limiting rods (42) movably pass through the two card plates (4). Each limiting rod (42) is movably sleeved with a spring (43), and the two card plates (4) are fixedly connected by the two springs (43).
3. The sampling device for soil environmental pollution detection as described in claim 2, characterized in that: One of the limiting rods (42) is fixedly installed on the inner wall of the protruding ring (31), and the other limiting rod (42) is fixedly installed on the inner wall of the sampling cylinder (2).
4. The sampling device for soil environmental pollution detection as described in claim 1, characterized in that: The circular plate (3) has four positioning holes (32) equidistantly spaced on its upper surface. The rotating plate (5) has through rods (53) fixedly installed at equal intervals on its bottom circumference, with the same number of through holes (32). Each through rod (53) movably passes through the positioning hole (32).
5. The sampling device for detecting soil environmental pollution as described in claim 1, characterized in that: The sampling tube (2) has a ring of teeth (21) at its bottom edge.
6. The sampling device for soil environmental pollution detection as described in claim 1, characterized in that: A connecting plate (11) is fixedly installed in the middle of the handle (1), and the drive motor (6) is fixedly installed in the middle of the upper end of the connecting plate (11). The output shaft of the drive motor (6) moves through the connecting plate (11).