Soil collecting device
The soil collection device, which uses a spiral drill rod, elastic claws and a slotted opening spring, solves the problems of existing devices destroying soil structure and contaminating samples, and achieves the integrity and closure of sampling.
Patent Information
- Application Number
- CN202422530724.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-21
AI Technical Summary
Existing soil collection devices are prone to destroying soil structure layers and causing sample contamination during the collection process, especially in hard layers, where collection is difficult and incomplete.
A soil collection device including an auger rod, a drill bit, an elastic clamp and a sampling bag was designed. The coordination of the elastic clamp and a slotted opening spring ensured the integrity and sealing of the sampling, thus preventing external contamination.
It effectively protects the in-situ hierarchical structure of the soil, ensures the integrity and closure of sampling, avoids sample contamination, and is easy to operate.
Smart Images
Figure CN223332665U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of soil collection construction, in particular to a soil collection device. Background Art
[0002] Soil collection is a necessary process for soil environmental monitoring and soil composition analysis, and is of great significance for the study of agricultural production, soil pollution control, and animal and plant research.
[0003] There are many types of soil collection devices, and the collection methods are different. Common collection methods include open collection, squeeze-in collection, and rotary collection. Open collection mostly uses manual digging to collect, exposing and stripping the collected soil, which can easily damage the soil structure and pollute the external environment. Squeeze-in collection is to squeeze the soil into the collector. It is widely used in shallow soil or soft bottom layers. It is often impossible to complete the collection when encountering a harder layer. Rotary collection mostly uses a soil sampler. It is widely used, but there are also problems of soil easily falling and damage and pollution when the sample needs to be taken out of the soil sampler again.
[0004] Therefore, in the field of soil collection construction technology, there is still a need for research and improvement of soil collection devices. This is also a research hotspot and focus in the current field of soil collection construction technology, and it is also the starting point for the completion of this utility model. Utility Model Content
[0005] Therefore, the technical problem to be solved by the present invention is to provide a soil sampling device that can effectively ensure the integrity and sealing of the sampling while ensuring the in-situ hierarchical structure of the soil.
[0006] In order to solve the above technical problems, the technical solution of the utility model is: a soil collection device, comprising a hollow auger rod, the end of the auger rod is threadedly connected to the drill bit, the drill bit extends into one end of the auger rod and is connected to an elastic claw, the elastic claw is away from the end of the auger rod and has a plurality of elastic contraction claws arranged in a ring array, the elastic contraction claw is petal-shaped, the elastic claw is connected to a sampling tube, the sampling tube is connected to a connector, the connector is connected to a pressure cover, the pressure cover is threadedly connected to the auger rod, the drill bit, elastic claw, sampling tube, connector and pressure cover are all coaxially arranged with the auger rod, the drill bit has a connecting channel connected to the sampling tube, the outer periphery of the sampling tube is provided with a sampling packaging bag with both ends open, and both ends of the sampling packaging bag are provided with a straight-opening spring, one end of the sampling packaging bag is constrained and installed on the drill bit, and the other end is constrained and installed on the connecting head.
[0007] As an improvement, the straight-opening spring includes a first spring piece and a second spring piece connected to each other at both ends, a straight-opening gap is formed between the first spring piece and the second spring piece, and the first spring piece and the second spring piece are staggered in the axial direction of the spiral drill rod.
[0008] As a further improvement, the straight-opening spring is sewn onto the sampling packaging bag.
[0009] As a further improvement, the connector is provided with an annular upper groove, and the slotted opening spring at the upper end of the sampling packaging bag is clamped in the upper groove.
[0010] As a further improvement, a lower groove is formed between the drill bit and the elastic claw, and the slotted opening spring at the lower end of the sampling packaging bag is clamped in the lower groove.
[0011] As a further improvement, the sampling packaging bag is fixedly mounted on the elastic claw via a clamping ring.
[0012] After adopting the above technical solution, the beneficial effects of the utility model are:
[0013] (1) Both ends of the sampling packaging bag of the embodiment of the utility model are provided with a straight opening spring. After the sampling is completed, the sampling packaging bag can wrap and take out the collected sample together with the sampling tube and the elastic claw, thereby ensuring the in-situ hierarchical structure of the soil and effectively ensuring the integrity and sealing of the sampling, thereby preventing the sample from being contaminated by the external environment.
[0014] (2) The sampling packaging bag of the utility model is fixedly installed on the elastic claw by a clamp ring. After the sampling is completed, the sample core can be completely taken out by pulling the sampling packaging bag, which is easy to operate and thus improves the performance of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.
[0016] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, provided they do not affect the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.
[0017] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;
[0018] Figure 2 This is a schematic structural diagram of the elastic retractable claw in the open state in the embodiment of the utility model;
[0019] Figure 3 This is a schematic structural diagram of the elastic retractable claw in the retracted state in the embodiment of the utility model;
[0020] Figure 4 This is a structural diagram of the open state of the one-way opening spring in the embodiment of the utility model
[0021] Figure 5 This is a structural diagram of the embodiment of the utility model in which the straight opening spring is in a contracted state;
[0022] Figure 6 This is a schematic diagram of the use state of an embodiment of the utility model;
[0023] Among them, 1. drill bit, 2. spiral drill rod, 3. elastic claw, 301. elastic retractable claw, 302. slot, 4. sampling packaging bag, 5. sampling tube, 6. slotted opening spring, 601. first spring piece, 602. second spring piece, 7. snap ring, 8. connector, 9. pressure cover, 10. drive rod. DETAILED DESCRIPTION
[0024] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.
[0025] The terms "front", "back", "left", "right", "inside", "outside", "middle", etc. used in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of implementation of the present invention without substantially changing the technical content.
[0026] like Figure 1 As shown, a soil collection device includes a hollow auger rod 2, which is driven by a driving rod 10 of a drilling rig. The end of the auger rod 2 is threadedly connected to a drill bit 1, and the drill bit 1 is inserted into one end of the auger rod 2 and connected to an elastic claw 3. Figure 2 and Figure 3 As shown, the elastic claw 3 is provided with a plurality of elastic contraction claws 301 arranged in a ring array at one end away from the spiral drill rod 2. The elastic contraction claw 301 is petal-shaped and contracts into a cone-like shape in a natural state. After installation, the end of the elastic claw 3 away from the elastic contraction claw 301 rests on the shoulder of the drill bit 1, and the end of the drill bit 1 extends into the position of the elastic contraction claw 301 and stretches the elastic contraction claw 301. The elastic claw 3 is connected to the sampling tube 5, and the sampling tube 5 is connected to the connector 8. The connector 8 is connected to the pressure cap 9, and the pressure cap 9 is threadedly connected to the spiral drill rod 2. The drill bit 1, the elastic claw 3, the sampling tube 5, the connector 8 and the pressure cap 9 are all coaxially arranged with the spiral drill rod 2. The pressure cap 9 presses the elastic claw 3, the sampling tube 5 and the connector 8 on the drill bit 1 in sequence. The drill bit 1 has a continuous A connecting passage for the sampling tube 5 is provided, and an installation gap is provided between the outer periphery of the sampling tube 5 and the spiral drill rod 2. A sampling packaging bag 4 with both ends open is provided on the outer periphery of the sampling tube 5. The sampling packaging bag 4 is usually a nylon bag. Both ends of the sampling packaging bag 4 are provided with a straight-opening spring 6. The straight-opening spring 6 can be expanded into a ring under the action of external force. When there is no external force, it can be contracted into a strip with a straight-opening gap under the action of elastic force. One end of the sampling packaging bag 4 is constrained to be installed on the drill bit 1, and the other end is constrained to be installed on the connector 8. After the sampling is completed, the sampling packaging bag 4 can wrap and take out the collected sample together with the sampling tube 5 and the elastic claw 3, thereby ensuring the in-situ hierarchical structure of the soil, and effectively ensuring the integrity and sealing of the sampling, thereby avoiding the sample from being contaminated by the external environment.
[0027] like Figure 4 and Figure 5 As shown, the straight-edge opening spring 6 includes a first spring piece 601 and a second spring piece 602 connected to each other at both ends, and a straight-edge gap is formed between the first spring piece 601 and the second spring piece 602. The first spring piece 601 and the second spring piece 602 are staggered in the axial direction of the spiral drill rod 2. Under the action of external force, the first spring piece 601 and the second spring piece 602 can be stretched into a ring. The straight-edge opening spring 6 is sewn to the sampling packaging bag 4. The straight-edge opening spring 6 of this structure is small in size. After use, it can seal both openings of the sampling packaging bag 4, avoiding soil leakage, thereby effectively ensuring the integrity and closure of the sampling.
[0028] An annular upper groove is provided on the connecting head 8, and the flat-opening spring 6 at the upper end of the sampling packaging bag 4 is clamped in the upper groove. A lower groove is formed between the drill bit 1 and the elastic claw 3, and the flat-opening spring 6 at the lower end of the sampling packaging bag 4 is clamped in the lower groove, ensuring the installation stability of the flat-opening spring 6, so that the sampling packaging bag 4 is fully unfolded on the sampling tube 5, effectively ensuring the in-situ hierarchical structure of the soil after sampling.
[0029] The sampling packaging bag 4 is fixedly installed on the elastic claw 3 by the clamping ring 7. Specifically, a clamping groove 302 is provided on the outer periphery of the end of the elastic claw 3 away from the elastic retracting claw 301. After the sampling packaging bag 4 is installed, the clamping ring 7 is clamped into the clamping groove 302 from the outside of the sampling packaging bag 4 to fix the sampling packaging bag 4 on the elastic claw 3. After the sampling is completed, the sample core can be completely taken out by pulling the sampling packaging bag 4, which is convenient for operation.
[0030] When using, such as Figure 6 As shown, after the drill bit 1 drills to a predetermined depth, the pressure cover 9 is removed, the upper joint is pulled out, and the flat-opening spring 6 at the upper end of the sampling bag 4 is clamped to achieve upper sealing of the sample, and then the sampling bag 4 is pulled upward. Under the fixing action of the clamping ring 7, the sampling bag 4 is lifted upward together with the sampling tube 5 and the elastic claw 3. The elastic retractable claw 301 of the elastic claw 3 begins to shrink and clamp after being separated from the end support of the drill bit 1, thereby cutting off the sample core and achieving preliminary sealing, and the sampling bag 4 is continued to be pulled up. After the flat-opening spring 6 sewn at the lower end of the sampling bag 4 is pulled out of the limiting step, it automatically shrinks and clamps, and the sample is sealed from the bottom, thereby effectively ensuring the integrity and closure of the sampling while ensuring the in-situ hierarchical structure of the soil.
[0031] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the spirit of the present invention, are within the scope of protection claimed herein.
Claims
1. A soil collection device comprising a hollow auger rod, the end of which is threadedly connected to a drill bit, characterized in that: The drill bit extends into one end of the auger rod and is connected to an elastic claw, and the elastic claw has a plurality of elastic contraction claws arranged in a ring array at one end away from the auger rod, and the elastic contraction claw is in a petal shape. The elastic claw is connected to the sampling tube, and the sampling tube is connected to a connector, and the connector is connected to a pressure cover, and the pressure cover is threadedly connected to the auger rod. The drill bit, elastic claw, sampling tube, connector and pressure cover are all coaxially arranged with the auger rod, and the drill bit has a connecting channel connected to the sampling tube. The outer periphery of the sampling tube is provided with a sampling packaging bag with both ends open, and both ends of the sampling packaging bag are provided with a straight opening spring, and one end of the sampling packaging bag is constrained and installed on the drill bit, and the other end is constrained and installed on the connecting head.
2. The soil collecting device according to claim 1, characterized in that: The straight-edge opening spring includes a first spring piece and a second spring piece connected to each other at both ends, a straight-edge gap is formed between the first spring piece and the second spring piece, and the first spring piece and the second spring piece are staggered in the axial direction of the spiral drill rod.
3. The soil collecting device according to claim 2, characterized in that: The straight-opening spring is sewn onto the sampling packaging bag.
4. The soil collecting device according to claim 3, characterized in that: An annular upper groove is provided on the connecting head, and a straight-opening spring at the upper end of the sampling packaging bag is clamped in the upper groove.
5. The soil collecting device according to claim 3, characterized in that: A lower groove is formed between the drill bit and the elastic claws, and the slotted opening spring at the lower end of the sampling packaging bag is clamped in the lower groove.
6. The soil collecting device according to claim 1, characterized in that: The sampling packaging bag is fixedly mounted on the elastic claw via a clamping ring.