Portable soil sampling device

Abstract

The invention discloses a portable soil sampling device which comprises a middle support, at least three supporting legs are detachably installed at the lower end of the middle support, a supporting threaded sleeve is arranged in the middle of the middle support, and a metal sampling pipe is in threaded connection with the supporting threaded sleeve. The lower end of the sampling pipe is arranged to be a tip part which can be conveniently inserted into soil, the sampling pipe is of a sectional structure, the sampling pipe comprises an external thread pipe section, a lower connecting sleeve and an upper connecting sleeve, the external thread pipe section comprises two external thread half pipes which are matched with each other, and the upper connecting sleeve is connected with the external thread half pipes. The lower connecting sleeve and the upper connecting sleeve are detachably fixed to the lower end and the upper end of the external thread pipe section respectively, the tip part is arranged on the lower connecting sleeve, and an operating handle is detachably installed at the upper end of the upper connecting sleeve; according to the soil sampling device, soil breaking sampling can be more convenient, soil can be more conveniently removed, and the soil sampling difficulty is simplified.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, and in particular to a portable soil sampling device. Background Art

[0002] At present, it is necessary to go to the site to sample soil pollutants for testing. The general sampling requirement is to collect soil at a specified depth and then test it in the laboratory. The current sampling method is to use external force such as manual hammering or electric tools to insert the sampling tube into the soil to a certain depth, and then form a sampling sample section with the soil left in the sampling tube. Then, according to the requirements of the project analysis, the soil at a specified position length in the sampling tube needs to be taken out for analysis. When the soil is taken out, the sampling tube needs to be sawed, usually by manually operating an electric saw blade or a hand saw to saw the sampling tube. In order to improve the strength of the sampling tube, the sampling tube generally uses a thicker plastic tube or a thinner metal tube, and then uses tools to take out the soil. This method is not only complicated to operate, but also has certain risks. Non-professionals may cause accidental injuries when sawing. The patent number is CN202011079047.3, which discloses a sawing device and method for a sampling tube. The sampling tube that is sampled back also needs to be broken by sawing, and the later operation is difficult and time-consuming. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a portable soil sampling device, which can more conveniently break the soil for sampling and can more conveniently remove the soil, thereby simplifying the difficulty of soil sampling.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a portable soil sampling device, comprising an intermediate bracket, the lower end of the intermediate bracket is detachably mounted with at least three supporting legs, the middle part of the intermediate bracket is provided with a supporting threaded sleeve, a metal sampling tube is threadedly connected to the supporting threaded sleeve, the lower end of the sampling tube is arranged to be a tip convenient for inserting into the soil, the sampling tube is a segmented structure, the sampling tube comprises an externally threaded pipe section, a lower connecting sleeve and an upper connecting sleeve, the externally threaded pipe section comprises two externally threaded half-tubes that cooperate with each other, the lower connecting sleeve and the upper connecting sleeve are detachably fixed to the lower end and the upper end of the externally threaded pipe section respectively, the tip is arranged on the lower connecting sleeve, and the upper end of the upper connecting sleeve is detachably mounted with an operating handle.

[0005] As a preferred solution, a lower connecting thread section is provided at the lower end of the externally threaded pipe section, and an upper connecting thread section is provided at the upper end of the externally threaded pipe section. The lower connecting sleeve and the upper connecting sleeve are respectively threadedly connected to the lower connecting thread section and the upper connecting thread section. The tightening directions of the upper connecting sleeve and the lower connecting sleeve are the same, and the downward rotation direction of the externally threaded pipe section is the same as the tightening direction of the upper connecting sleeve.

[0006] As a preferred solution, the upper connecting sleeve includes an upper connecting sleeve body, an upper end plate is provided at the upper end of the upper connecting sleeve body, a polygonal connecting column is provided on the upper end plate, and a sleeve portion sleeved on the connecting column is provided at the end of the operating handle.

[0007] As a preferred solution, the axial edges of the two externally threaded half-tubes are provided with matching steps for easy matching.

[0008] As a preferred solution, the support legs are threadedly connected to the intermediate bracket, wherein the intermediate bracket is provided with a threaded connection sleeve, the support legs are threadedly mounted on the threaded connection sleeve, and each support leg constitutes a structural form with a flared lower end.

[0009] As a preferred solution, the lower end of the supporting leg is configured as a pointed structure.

[0010] As a preferred solution, the tip of the lower end of the lower connecting sleeve is a tip formed by a beveled surface.

[0011] As a preferred solution, the tip of the lower end of the lower connecting sleeve is formed by the intersection of two symmetrical beveled surfaces.

[0012] After adopting the above technical scheme, the effect of the present invention is as follows: since the portable soil sampling device includes an intermediate bracket, the lower end of the intermediate bracket is detachably mounted with at least three supporting legs, a supporting threaded sleeve is arranged in the middle of the intermediate bracket, a metal sampling tube is threadedly connected to the supporting threaded sleeve, the lower end of the sampling tube is arranged to be a tip convenient for inserting into the soil, the sampling tube is a segmented structure, the sampling tube includes an externally threaded pipe section, a lower connecting sleeve and an upper connecting sleeve, the externally threaded pipe section includes two externally threaded half-tubes that cooperate with each other, the lower connecting sleeve and the upper connecting sleeve are detachably fixed to the lower end and the upper end of the externally threaded pipe section respectively, the tip is arranged on the lower connecting sleeve, and the upper end of the upper connecting sleeve is detachably mounted with an operating handle; first, the supporting The legs are installed on the middle bracket, so that the middle bracket is placed on the required sampling ground, then the external threaded pipe section is connected with the upper connecting sleeve, and then the external threaded pipe section is threadedly installed on the supporting threaded sleeve, then the lower connecting sleeve is sleeved on the bottom of the external threaded pipe section, and then the operating handle is installed on the upper end of the upper connecting sleeve, and the operating handle is manually rotated to make the external threaded pipe section rotate and descend along the supporting threaded sleeve, and the tip of the lower connecting sleeve is inserted into the soil, and after descending to a specified depth, the operating handle is rotated to take the external threaded pipe section out of the supporting threaded sleeve, and then the upper connecting sleeve and the lower connecting sleeve at the upper and lower ends of the external threaded pipe section are taken out; the external threaded pipe section is disassembled to take out the soil required for sampling; the soil sampling device can more conveniently break the soil for sampling, and can more conveniently remove the soil, thereby simplifying the difficulty of soil sampling.

[0013] Since a lower connecting threaded section is provided at the lower end of the externally threaded pipe section, and an upper connecting threaded section is provided at the upper end of the externally threaded pipe section, the lower connecting sleeve and the upper connecting sleeve are respectively threadedly connected to the lower connecting threaded section and the upper connecting threaded section, the tightening directions of the upper connecting sleeve and the lower connecting sleeve are the same, and the downward rotation direction of the externally threaded pipe section is the same as the tightening direction of the upper connecting sleeve, thereby ensuring that the upper connecting sleeve and the lower connecting sleeve can be effectively fixed on the externally threaded pipe section when the externally threaded pipe section is rotated to break the ground, and when the externally threaded pipe section rotates downward, the upper connecting sleeve can also be rotated and installed firmly, thereby ensuring that the sampling device is firm and reliable.

[0014] Furthermore, since the upper connecting sleeve includes an upper connecting sleeve body, an upper end plate is provided at the upper end of the upper connecting sleeve body, a polygonal connecting column is provided on the upper end plate, and a sleeve portion sleeved on the connecting column is provided at the end of the operating handle. The connecting column facilitates the sleeve installation of the operating handle, so that the operating handle can stably drive the upper connecting sleeve body to rotate.

[0015] Furthermore, since the axial edges of the two externally threaded half-pipes are provided with matching steps for easy matching, the sealing performance of the externally threaded pipe section is improved, thereby ensuring the sampling effect.

[0016] Furthermore, due to the threaded connection between the support legs and the intermediate bracket, a threaded connection sleeve is provided on the intermediate bracket, and the support legs are threadedly mounted on the threaded connection sleeve. Each support leg forms a structural form with a flared lower end, which facilitates the stable placement of the intermediate bracket and enables the support threaded sleeve on the intermediate bracket to accurately cooperate with the external threaded pipe section for sampling.

[0017] Furthermore, since the lower end of the support leg is configured as a pointed structure, the support leg can be stably inserted into the required sampling location, so that the middle bracket can be placed stably.

[0018] Furthermore, since the tip of the lower end of the lower connecting sleeve is formed by an oblique cut surface, and the tip of the lower end of the lower connecting sleeve is formed by the intersection of two symmetrical oblique cut surfaces, the soil breaking efficiency is improved, thereby improving the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 is a stereogram of an embodiment of the present invention;

[0021] Figure 2 is a half-section view of an embodiment of the present invention;

[0022] Figure 3 It is a structural schematic diagram of a connecting sleeve according to an embodiment of the present invention;

[0023] In the attached drawings: 1. middle bracket; 2. supporting leg; 3. threaded connecting sleeve; 4. supporting threaded sleeve; 5. externally threaded pipe section; 6. lower connecting sleeve; 7. upper connecting sleeve body; 8. externally threaded half pipe; 9. operating handle; 10. upper end plate; 11. connecting column; 12. sleeve joint; 13. assembly step. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below through specific examples.

[0025] like Figures 1 to 3 As shown, a portable soil sampling device comprises an intermediate bracket 1, the lower end of which is detachably mounted with at least three supporting legs 2, a supporting threaded sleeve 4 is arranged in the middle of the intermediate bracket 1, a metal sampling tube is threadedly connected to the supporting threaded sleeve 4, the lower end of the sampling tube is arranged as a tip for convenient insertion into the soil, the sampling tube is a segmented structure, the sampling tube comprises an externally threaded pipe section 5, a lower connecting sleeve 6 and an upper connecting sleeve, the externally threaded pipe section 5 comprises two externally threaded half-tubes 8 which cooperate with each other, the lower connecting sleeve 6 and the upper connecting sleeve are detachably fixed to the lower end and the upper end of the externally threaded pipe section 5 respectively, the tip is arranged on the lower connecting sleeve 6, and the upper end of the upper connecting sleeve is detachably mounted with an operating handle 9.

[0026] In this embodiment, the lower end of the externally threaded pipe section 5 is provided with a lower connecting thread section, and the upper end of the externally threaded pipe section 5 is provided with an upper connecting thread section. The lower connecting sleeve 6 and the upper connecting sleeve are respectively threadedly connected to the lower connecting thread section and the upper connecting thread section. The tightening directions of the upper connecting sleeve and the lower connecting sleeve 6 are the same. The downward rotation direction of the externally threaded pipe section 5 is the same as the tightening direction of the upper connecting sleeve. The lower connecting thread section is threadedly matched with the lower connecting sleeve 6, and the upper connecting thread section is threadedly matched with the upper connecting sleeve, and the upper connecting sleeve and the lower connecting sleeve are respectively threadedly connected to the lower connecting sleeve 6. The tightening direction of the sleeve 6 is the same, so that the thread rotation direction of the upper connecting threaded section and the lower connecting threaded section is the same, and the upper connecting sleeve needs to be rotated when the externally threaded pipe section 5 is downward, and the externally threaded pipe section 5 is driven to rotate by the upper connecting sleeve. Therefore, the thread of the externally threaded pipe section 5 and the supporting threaded sleeve 4 is the same as the upper connecting threaded section, ensuring that the upper connecting sleeve and the lower connecting sleeve 6 can be effectively fixed on the externally threaded pipe section 5 when the externally threaded pipe section 5 is rotated to break the ground, and when the externally threaded pipe section 5 rotates downward, the upper connecting sleeve can also be rotated and installed firmly, ensuring that the sampling device is firm and reliable.

[0027] Furthermore, the upper connecting sleeve includes an upper connecting sleeve body 7, an upper end plate 10 is provided at the upper end of the upper connecting sleeve body 7, a polygonal connecting column 11 is provided on the upper end plate 10, and a sleeve portion 12 sleeved on the connecting column 11 is provided at the end of the operating handle 9; the connecting column 11 facilitates the sleeve installation of the operating handle 9, so that the operating handle 9 can stably drive the upper connecting sleeve body 7 to rotate.

[0028] like Figure 3 As shown, the axial edges of the two externally threaded half-tubes 8 are provided with a grouping step 13 for easy matching; since the externally threaded half-tubes 8 need to be assembled, the externally threaded half-tubes 8 can be assembled conveniently and quickly through the grouping step, thereby improving efficiency.

[0029] like Figure 1 As shown, the support leg 2 is threadedly connected to the intermediate bracket 1, wherein the intermediate bracket 1 is provided with a threaded connection sleeve 3, the support leg 2 is threadedly mounted on the threaded connection sleeve 3, each support leg 2 forms a structural form of a flared lower end, the intermediate bracket 1 is a circular structure, and three threaded connection sleeves 3 for mounting the support legs 2 are evenly distributed on the circumference, so that three support legs 2 are correspondingly installed, and the flared lower end structure ensures the stability of placement; the support threaded sleeve 4 on the intermediate bracket 1 and the external threaded pipe section 5 are accurately matched for sampling.

[0030] In this embodiment, the lower end of the support leg 2 is configured to be a pointed structure, so that the support leg 2 can be firmly inserted into the desired sampling location, so that the middle bracket 1 can be placed stably.

[0031] like Figure 1 As shown, the tip of the lower end of the lower connecting sleeve 6 is a tip formed by a chamfered surface.

[0032] like Figure 3 As shown, the tip of the lower end of the lower connecting sleeve 6 is formed by the intersection of two symmetrical beveled surfaces, which improves the soil breaking efficiency and thus improves the sampling efficiency.

[0033] The working principle of this embodiment is as follows: first, the supporting leg 2 is installed on the intermediate bracket 1, then the intermediate bracket 1 is placed, the external threaded half pipe 8 is assembled, the upper connecting sleeve body 7 is first sleeved on the upper end of the external threaded pipe section 5, then the external threaded pipe section 5 is rotated and installed on the supporting threaded sleeve 4, and then the lower connecting sleeve 6 is installed on the lower end of the external threaded pipe section 5, and then the sleeve portion 12 of the operating handle 9 is sleeved on the connecting column 11, and the operating handle 9 is rotated, and the external threaded pipe section 5 rotates and descends along the supporting threaded sleeve 4, and the tip of the lower connecting sleeve 6 is inserted into the soil. After descending to the specified depth, the operating handle 9 is rotated to take out the external threaded pipe section 5 from the supporting threaded sleeve 4, and then the upper connecting sleeve and the lower connecting sleeve 6 at the upper and lower ends of the external threaded pipe section 5 are removed; the external threaded pipe section 5 is disassembled to take out the soil to be sampled.

[0034] The above-described embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Various modifications and alterations to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A portable soil sampling device, characterized in that: It includes an intermediate bracket, the lower end of which is detachably mounted with at least three supporting legs, a supporting threaded sleeve is provided in the middle of the intermediate bracket, a metal sampling tube is threadedly connected to the supporting threaded sleeve, the lower end of the sampling tube is arranged to be a pointed portion convenient for insertion into the soil, the sampling tube is a segmented structure, the sampling tube includes an externally threaded pipe section, a lower connecting sleeve and an upper connecting sleeve, the externally threaded pipe section includes two externally threaded half-tubes that cooperate with each other, the lower connecting sleeve and the upper connecting sleeve are detachably fixed to the lower end and the upper end of the externally threaded pipe section respectively, the pointed portion is arranged on the lower connecting sleeve, and the upper end of the upper connecting sleeve is detachably mounted with an operating handle.

2. A portable soil sampling device as claimed in claim 1, characterized in that: A lower connecting threaded section is provided at the lower end of the externally threaded pipe section, and an upper connecting threaded section is provided at the upper end of the externally threaded pipe section. The lower connecting sleeve and the upper connecting sleeve are respectively threadedly connected to the lower connecting threaded section and the upper connecting threaded section. The tightening directions of the upper connecting sleeve and the lower connecting sleeve are the same, and the downward rotation direction of the externally threaded pipe section is the same as the tightening direction of the upper connecting sleeve.

3. A portable soil sampling device as claimed in claim 2, characterized in that: The upper connecting sleeve comprises an upper connecting sleeve body, an upper end plate is arranged at the upper end of the upper connecting sleeve body, a polygonal connecting column is arranged on the upper end plate, and a sleeve portion sleeved on the connecting column is arranged at the end of the operating handle.

4. A portable soil sampling device as claimed in claim 3, characterized in that: The axial edges of the two externally threaded half-tubes are provided with assembly steps for easy matching.

5. A portable soil sampling device as claimed in claim 4, characterized in that: The support legs are threadedly connected to the intermediate bracket, wherein a threaded connection sleeve is provided on the intermediate bracket, and the support legs are threadedly mounted on the threaded connection sleeve, and each support leg forms a structural form with a flared lower end.

6. A portable soil sampling device as claimed in claim 5, characterized in that: The lower end of the supporting leg is configured to be a pointed structure.

7. A portable soil sampling device as claimed in claim 6, characterized in that: The tip of the lower end of the lower connecting sleeve is formed by a chamfered surface.

8. A portable soil sampling device as claimed in claim 6, characterized in that: The tip of the lower end of the lower connecting sleeve is formed by the intersection of two symmetrical chamfered surfaces.

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