A soil sampling device for nitrogen detection

Abstract

The utility model relates to a soil sampling device for nitrogen detection, which relates to a soil sampling tool and has the technical effects that the push plate is disassembled, the cutting cylinder is turned over, and the scraping element is matched, so that the internal cleaning can be quickly and effectively realized, and the cleaning operation can be carried out after the push plate is disassembled, so that the erosion of the metal surface is avoided and the subsequent use is affected.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling tools, and in particular to a soil sampling device for nitrogen detection. Background Technology

[0002] In agricultural planting, in order to assess the soil's nutrient supply to crops, it is necessary to test the nitrogen content. This requires collecting soil samples from a depth of 0-20 cm. Currently used soil collection tools cannot clean the inside of the cutter barrel after use. As a result, after long-term use, some soil will remain inside, causing corrosion of the cutter barrel and affecting its use. How to easily clean the structure of the cutter barrel is the main technical problem that needs to be solved. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a soil sampling device for nitrogen detection, which addresses the above-mentioned technical deficiencies. By removing the push plate and flipping the cutting cylinder in conjunction with the mud scraper, internal cleaning can be achieved quickly and effectively. Furthermore, cleaning can also be performed after the push plate is disassembled, avoiding corrosion of the metal surface and affecting subsequent use.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model includes: a bracket and a push rod; the bottom of the bracket is provided with a cutting cylinder connected by a rotating shaft, and the cutting cylinder is provided with a positioning pin connected to the bracket; a mud scraper is provided above the bracket, and the mud scraper can move in a circle around the center; the push rod is slidably connected to the top of the bracket, and the axis is concentric with the cutting cylinder; and a push plate with a threaded connection is provided at the bottom.

[0005] Preferably, the bracket has two symmetrical insertion holes on both sides of its bottom.

[0006] Preferably, the push rod has a threaded hole at the center of its bottom.

[0007] Preferably, the bracket is provided with pedals on both sides below.

[0008] Preferably, the sludge scraper includes a ring frame and a rotary frame; the ring frame is symmetrically provided with through holes that contact the support; the rotary frame is connected to the inner wall of the ring frame, and an L-shaped scraper is provided below the rotary frame, with the outer side of the scraper contacting the inner wall of the cutting cylinder.

[0009] Preferably, the outer side of the scraper is provided with detachable scraper strips symmetrically.

[0010] Preferably, the bottom surface of the scraper is provided with felt.

[0011] Preferably, the rotary frame has a snap-fit ​​hole at its center; the area below the push rod has a snap-fit ​​plate that connects to the snap-fit ​​hole.

[0012] Preferably, the bracket is provided with a fixing pin for positioning the ring frame, and the fixing pin is detachably connected to the bracket.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. During the sampling process, the mud scraper is located on the support, which will not affect the normal sampling use. The whole unit is connected to the support, making it easy to carry and use.

[0015] 2. By rotating the push plate and separating it from the push rod, and rotating the cutting cylinder 180 degrees to position it, the sludge scraper is pushed into the inside of the cutting cylinder to achieve the cleaning operation. The operation is simple and convenient. After the push plate is removed, the cleaning operation can also be carried out separately to remove the mud adhering to the surface and avoid affecting subsequent use.

[0016] 3. During the rotation of the scraper, the inner wall of the cutting cylinder can be cleaned, and the L-shaped scraper design can also clean the bottom surface of the cutting cylinder at the same time, resulting in a better cleaning effect;

[0017] 4. The design of the snap-fit ​​plate and snap-fit ​​hole allows for snap-fit ​​with the rotary frame using a push rod, facilitating the rotation of the rotary frame and improving cleaning efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a soil sampling device for nitrogen detection;

[0019] Figure 2 This is a schematic diagram of the connection between the cutting cylinder and the push rod;

[0020] Figure 3 A schematic diagram of the arrangement of the sludge scraper components;

[0021] Figure 4 This is a demonstration image showing the mud scraper in use.

[0022] Figure 5 This is a schematic diagram of the sludge scraper structure;

[0023] Figure 6 This is a schematic diagram of the assembly of the push rod and the rotary frame;

[0024] Figure 7 This is a schematic diagram of the scraper arrangement.

[0025] In the diagram: 1. Bracket; 2. Push rod; 3. Scraper; 4. Ring frame; 5. Rotary frame; 101. Cutting cylinder; 102. Positioning pin; 103. Insertion hole; 104. Pedal; 105. Fixing pin; 201. Push plate; 202. Threaded hole; 203. Snap-fit ​​plate; 401. Through hole; 501. Scraper; 502. Scraper strip; 503. Felt; 504. Snap-fit ​​hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0027] Specific implementation method one: Combining Figure 1-7 As shown, a soil sampling device for nitrogen detection includes: a support 1 and a push rod 2; the support 1 is generally U-shaped with handles on both sides of the top, and a cutting cylinder 101 connected to the bottom of the support 1 by a rotating shaft, and a positioning pin 102 connected to the support 1 to keep the cutting cylinder 101 in position; a scraper 3 is provided above the support 1, and the scraper 3 can be adjusted in the up and down direction along the support 1, and at the same time, the scraper 3 can move in a circle around the center to scrape and clean the inner wall of the cutting cylinder 101; the push rod 2 is slidably connected to the top of the support 1, and the axis is concentric with the cutting cylinder 101, and a push plate 201 with a threaded connection is provided at the bottom to facilitate the disassembly or installation of the push plate 201.

[0028] Preferred embodiments, in combination Figure 1 and Figure 2 As shown, two insertion holes 103 are symmetrically provided on both sides of the bottom of the bracket 1. The two insertion holes 103 are located above and below the shaft connection, respectively. With the insertion of the positioning pin 102, the cutting cylinder 101 can be positioned.

[0029] Preferred embodiments, in combination Figure 6 As shown, the push rod 2 has a threaded hole 202 at the center of its bottom, which has an internal thread and is connected to the external thread on the top of the push plate 201.

[0030] Preferred embodiments, in combination Figure 1 and Figure 3 As shown, foot pedals 104 are provided on both sides below the support 1 to facilitate downward pressure when removing soil.

[0031] Preferred embodiments, in combination Figure 3-5 As shown, the sludge scraper 3 includes a ring frame 4 and a rotating frame 5. The ring frame 4 is symmetrically provided with through holes 401 that contact the support 1, forming a sliding connection with the support 1. This facilitates the pushing of the scraper 501 into the cutting cylinder 101 by adjusting the position. A circular receiving space is formed at the center of the ring frame 4. The rotating frame 5 is connected to the receiving space, thus achieving the connection and enabling rotation. An L-shaped scraper 501 is provided below the rotating frame 5. The outer side of the scraper 501 contacts the inner wall of the cutting cylinder 101. During the rotation process, the sludge removal operation is completed.

[0032] Preferred embodiments, in combination Figure 7 As shown, detachable scraper strips 502 are symmetrically provided on the outer side of the scraper 501. The outer side of the scraper 501 is provided with a sliding groove. The end shape of the scraper strip 502 is adapted to the sliding groove, which can realize the installation or removal of the scraper strip 502, which is convenient for later maintenance. At the same time, the scraper strip 502 is in contact with the inner wall of the cutting cylinder 101 to improve the tightness of the contact. The scraper strip 502 is made of rubber or plastic material.

[0033] Preferred embodiments, in combination Figure 7 As shown, the bottom surface of the scraper 501 is provided with felt 503, which can increase the friction after contacting the bottom surface of the cutting cylinder 101 and avoid scratching the surface of the cutting cylinder 101, thereby improving the cleaning effect.

[0034] Preferred embodiments, in combination Figure 5 and Figure 6 As shown, the rotary frame 5 has a snap-fit ​​hole 504 at its center. The inner wall of the snap-fit ​​hole 504 has multiple distributed rectangular slot structures. The area below the push rod 2 has a snap-fit ​​plate 203 that connects to the snap-fit ​​hole 504. The shape of the snap-fit ​​plate 203 is adapted to the snap-fit ​​hole 504. After being inserted into the corresponding position, it connects with the rotary frame 5. The rotary frame 5 can be driven to rotate by rotating the push rod 2.

[0035] Preferred embodiments, in combination Figure 4 As shown, a fixing pin 105 for positioning the ring frame 4 is provided on the upper part of the bracket 1. The upper part of the bracket 1 has a hole for connecting with the fixing pin 105. The fixing pin 105 is inserted into the hole to achieve connection and positioning of the ring frame 4. At the same time, the outer wall of the fixing pin 105 can also be threaded, and the inside of the hole is also threaded, making the connection more reliable and preventing the fixing pin 105 from falling off.

[0036] Working principle: During normal use, the bottom surface of the ring frame 4 is connected to the fixing pin 105, which can position the sludge scraper 3 above the bracket 1 to avoid collision between the scraper 501 and the cutting cylinder 101. After soil collection, due to the gap between the push plate 201 and the inner wall of the cutting cylinder 101, some soil remains. To address this, the push plate 201 is removed, the positioning pin 102 is pulled out, the cutting cylinder 101 is rotated 180 degrees, and the positioning pin 101 is reinserted into the lower insertion hole 103. Then, the restriction on the sludge scraper 3 is released, the scraper 501 is pushed into the cutting cylinder 101, and the rotating frame 5 is rotated to complete the cleaning operation.

[0037] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A soil sampling device for nitrogen detection, characterized by, include: The bracket (1) and push rod (2) are provided; the bottom of the bracket (1) is provided with a cutting cylinder (101) connected by a rotating shaft, and the cutting cylinder (101) is provided with a positioning pin (102) connected to the bracket (1); a scraper (3) is provided above the bracket (1), and the scraper (3) can move in a circle around the center; the push rod (2) is slidably connected to the top of the bracket (1), and the axis is concentric with the cutting cylinder (101); a push plate (201) is provided at the bottom with a threaded connection.

2. The soil sampling device for nitrogen detection of claim 1, wherein: The bracket (1) has two symmetrical insertion holes (103) on both sides of its bottom.

3. The soil sampling device for nitrogen detection of claim 1, wherein: The push rod (2) has a threaded hole (202) at the center of its bottom.

4. A soil sampling device for nitrogen detection according to claim 1, characterized in that: The bracket (1) is provided with pedals (104) on both sides below.

5. A soil sampling device for nitrogen detection according to claim 1, characterized in that: The sludge scraper (3) includes a ring frame (4) and a rotating frame (5); the ring frame (4) is symmetrically provided with through holes (401) that contact the support (1); the rotating frame (5) is connected to the inner wall of the ring frame (4), and an L-shaped scraper (501) is provided below the rotating frame (5), and the outer side of the scraper (501) contacts the inner wall of the cutting cylinder (101).

6. A soil sampling device for nitrogen detection according to claim 5, characterized in that: The scraper (501) is provided with detachable scraper strips (502) symmetrically on its outer side.

7. A soil sampling device for nitrogen detection according to claim 5, characterized in that: The scraper (501) has a felt (503) on its bottom surface.

8. A soil sampling device for nitrogen detection according to claim 5, characterized in that: The rotating frame (5) has a snap-fit ​​hole (504) at its center; the area below the push rod (2) has a snap-fit ​​plate (203) that is connected to the snap-fit ​​hole (504).

9. A soil sampling device for nitrogen detection according to claim 5, characterized in that: The bracket (1) is provided with a fixing pin (105) for positioning the ring frame (4) above it, and the fixing pin (105) is detachably connected to the bracket (1).

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