A sampling device for municipal landscaping soil testing

Abstract

This invention provides a sampling device for municipal landscaping soil testing, comprising a sampling rod, an outer sleeve, and multiple telescopic sampling mechanisms spaced apart along the axial direction. The outer sleeve is slidably fitted over the sampling rod, and the extension or retraction of the sampling spoon in the telescopic sampling mechanism is controlled by sliding the outer sleeve. During sampling, the outer sleeve moves downward to retract the sampling spoon into the groove. After inserting the device into the soil to the target depth, the outer sleeve is lifted to extend the sampling spoon, which then rotates with the sampling rod to excavate soil, achieving simultaneous collection of soil samples at different depths. This device is compact in structure, easy to operate, and can complete multi-layer soil sampling in one operation, avoiding soil disturbance and sample contamination caused by repeated insertion and removal, thus improving sampling efficiency and accuracy. It is particularly suitable for rapid sampling of vertical soil profiles in municipal landscaping, environmental monitoring, and soil science research.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling and testing, specifically to a sampling device for municipal and garden soil testing. Background Technology

[0002] When conducting soil testing and analysis for municipal gardens, it is necessary to understand the specific conditions of the soil at different depths in order to analyze soil nutrient distribution, microbial activity, and pollutant migration.

[0003] In existing technologies, soil sampling devices can typically only sample soil at a specific depth, and cannot simultaneously sample soil at different depths. This limitation necessitates multiple sampling operations in research and applications requiring soil samples from multiple depths, increasing workload and time costs. Furthermore, factors such as changes in the external environment and operational errors may affect the representativeness and accuracy of the samples. Utility Model Content

[0004] The main purpose of this utility model is to provide a sampling device for municipal garden soil testing, which solves the problem of not being able to sample soil at different depths at the same time.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: it includes a sampling rod, a sliding outer sleeve is fitted on the sampling rod, and multiple telescopic sampling mechanisms are arranged laterally at intervals on the sampling rod, wherein the sampling spoon in the telescopic sampling mechanism extends and retracts laterally on the sampling rod.

[0006] The sampling spoon can be retracted or extended by sliding the outer sleeve.

[0007] Preferably, a handwheel is fixed to the top of the outer sleeve for driving the entire unit to rotate for sampling operations.

[0008] Preferably, the inner sides of the outer sleeve are provided with grooves, and the bottom of the grooves is provided with guide slopes, so that the sampling spoon slides within the grooves.

[0009] Preferably, the inner ends of the outer sleeve are provided with protrusions, and the outer side of the sampling rod is provided with corresponding grooves, with the protrusions sliding against the grooves.

[0010] Preferably, the sampling rod has a cone fixed at the bottom and a plug fixed at the top. The cone is used to insert into the soil, and the plug is used to limit the sliding of the outer sleeve.

[0011] Preferably, the sampling rod is provided with multiple horizontal through mounting holes, and the telescopic sampling mechanism is installed in the mounting holes.

[0012] Preferably, the telescopic sampling mechanism includes a pin and a plug, with a spring between the pin and the plug. The pin slides against the mounting hole, the plug is threaded to the end of the mounting hole, and the sampling spoon is located at the end of the pin.

[0013] This utility model provides a sampling device for municipal and garden soil testing, with the following advantages:

[0014] 1. Multiple telescopic sampling mechanisms are arranged axially at intervals on a single sampling rod. The extension and retraction of each sampling spoon are controlled by the up-and-down sliding of the outer sleeve. This allows for the collection of soil samples from multiple depths in a single insertion operation, significantly improving sampling efficiency and reducing labor intensity.

[0015] 2. The outer sleeve is equipped with a sliding groove and a protrusion guide structure, which, combined with the groove positioning method on the sampling rod, ensures stable and reliable relative sliding between the outer sleeve and the sampling rod. At the same time, the sampling spoon is automatically extended by a spring reset structure, which improves the ease of operation and automation of the device.

[0016] 3. Each sampling spoon can extend and retract independently and rotate with the sampling rod to dig soil, which can obtain undisturbed soil samples at the target depth without disturbing other soil layers. This avoids the soil layer mixing problem caused by repeated insertion and removal in traditional methods, and improves the authenticity and representativeness of the samples.

[0017] 4. After sampling is completed, the sampling spoon can be retracted by sliding the outer sleeve again, bringing out the soil and then extending the sampling spoon back out on the ground, which facilitates quick sample retrieval and effectively prevents cross-contamination between samples from different depths. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model in a contracted state;

[0020] Figure 2 This is a utility model Figure 1 Sectional view of AA;

[0021] Figure 3 This is a utility model Figure 1 A diagram illustrating the extension of the symbol;

[0022] Figure 4 This is a utility model Figure 3 Enlarged view a in the middle;

[0023] Figure 5 This is a schematic diagram of the sampling device of this utility model being inserted into the soil;

[0024] Figure 6 This is a schematic diagram of the sampling device of this utility model being inserted into the soil for sampling;

[0025] In the figure: outer sleeve 1; handwheel 101; slide groove 102; protrusion 103; sampling rod 2; cone 201; plug 202; groove 203; mounting hole 204; telescopic sampling mechanism 3; pin 301; plug 302; spring 303; sampling spoon 304. Detailed Implementation

[0026] like Figures 1-6 As shown, a sampling device for municipal garden soil testing includes a sampling rod 2, a sliding outer sleeve 1 fitted on the sampling rod 2, and multiple telescopic sampling mechanisms 3 arranged laterally at intervals on the sampling rod 2. The sampling spoon 304 in the telescopic sampling mechanism 3 extends and retracts laterally on the sampling rod 2; the sampling spoon 304 is retracted or extended by sliding the outer sleeve 1.

[0027] The relative sliding between the outer sleeve 1 and the sampling rod 2 allows the sampling spoons 304 in the multiple telescopic sampling mechanisms 3 on the sampling rod 2 to retract into the outer sleeve 1 or extend outwards. When retracted, the sampling spoons 304 are used to insert into or pull out the soil; when extended, they are used to rotate within the soil to collect samples or to remove soil samples from the sampling spoons 304.

[0028] like Figure 2 As shown, the inner cavity of the outer sleeve 1 has two sets of opposing sliding grooves 102 and protrusions 103. There is a guide slope at the bottom of the sliding groove 102, which facilitates the sampling spoon 304 to retract into the sliding groove 102 through the guide slope. The groove 203 on the outside of the sampling rod 2 cooperates with the protrusion 103 to ensure accurate positioning of the relative sliding of the outer sleeve 1 and the sampling rod 2.

[0029] like Figure 3 As shown, the outer sleeve 1 slides above the sampling rod 2, and the sampling spoon 304 in the telescopic sampling mechanism 3 extends out, which can perform sampling operations on deep soil. Multiple sampling spoons 304 arranged at intervals can simultaneously sample soil at different depths according to the testing needs, thereby improving sampling efficiency.

[0030] like Figures 3-4 As shown, the sampling rod 2 has multiple horizontally penetrating mounting holes 204 below it. The telescopic sampling mechanism 3 is installed in the mounting holes 204. The telescopic sampling mechanism 3 includes a pin 301 and a plug 302. The pin 301 slides within the mounting hole 204, and the plug 302 is threaded to the end of the mounting hole 204. The other end of the mounting hole 204 has a step to limit the sliding of the pin 301. A spring 303 is provided between the plug 302 and the pin 301 to push the pin 301 out. The sampling spoon 304 is fixed on the pin 301. The sampling spoon 304 has a groove, and the groove faces the same direction as the rotation direction of the sampling rod 2. By rotating the sampling rod 2, the groove on the sampling spoon 304 can dig out the surrounding soil.

[0031] like Figures 5-6 As shown, the outer sleeve 1 slides below the sampling rod 2. The sampling spoon 304 in the telescopic sampling mechanism 3 retracts into the groove 102 in the outer sleeve 1, allowing the entire assembly to be inserted into the soil through the cone 201 at the bottom. After insertion to the specified depth, the outer sleeve 1 slides upward to extend the sampling spoon 304 into the soil. The entire assembly is then rotated by the handwheel 101 to allow the sampling spoon 304 to dig out the surrounding soil. After sampling, the outer sleeve 1 slides downward to retract the sampling spoon 304, and then the entire assembly is removed. Once on the ground, the outer sleeve 1 is slid upward again to extend the sampling spoon 304, allowing the soil collected in the sampling spoon 304 to be retrieved. Multiple sampling spoons 304 correspond to soil at different depths, enabling simultaneous sampling of soil at different depths, making the sampling operation more efficient.

[0032] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A sampling device for municipal garden soil detection, characterized in that: Includes a sampling rod (2), a sliding outer sleeve (1) is fitted on the sampling rod (2), and multiple telescopic sampling mechanisms (3) are arranged laterally at intervals on the sampling rod (2). The sampling spoon (304) in the telescopic sampling mechanism (3) extends and retracts laterally on the sampling rod (2). The sampling spoon (304) is retracted or extended by sliding the outer sleeve (1).

2. The sampling device for municipal garden soil detection according to claim 1, characterized in that: A handwheel (101) is fixed at the top of the outer sleeve (1) for driving the whole to rotate for sampling.

3. The sampling device for municipal garden soil detection according to claim 1, characterized in that: The inner sides of the outer sleeve (1) are provided with grooves (102), and the bottom of the grooves (102) is provided with guide slopes. The sampling spoon (304) slides in the grooves (102).

4. The sampling device for municipal garden soil detection according to claim 1, characterized in that: The inner ends of the outer sleeve (1) are provided with protrusions (103), and the outer side of the sampling rod (2) is provided with a corresponding groove (203). The protrusions (103) slide against the groove (203).

5. The sampling device for municipal garden soil detection according to claim 1, characterized in that: The sampling rod (2) has a cone (201) fixed at the bottom and a plug (202) fixed at the top. The cone (201) is used to insert into the soil, and the plug (202) is used to restrict the sliding of the outer sleeve (1).

6. The sampling device for municipal garden soil detection according to claim 1, characterized in that: The sampling rod (2) is provided with multiple horizontal through mounting holes (204), and the telescopic sampling mechanism (3) is installed in the mounting holes (204).

7. The sampling device for municipal garden soil detection according to claim 6, characterized in that: The telescopic sampling mechanism (3) includes a pin (301) and a plug (302). A spring (303) is provided between the pin (301) and the plug (302). The pin (301) slides against the mounting hole (204). The plug (302) is threaded to the end of the mounting hole (204). The sampling spoon (304) is located at the end of the pin (301).

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