Soil bulk density sampler

Abstract

The utility model relates to the technical field of soil bulk density samplers, in particular to a soil bulk density sampler which comprises a main sampling tube, a knocking block and a base, an upper sampling tube is mounted at the upper end of the main sampling tube, a lower sampling tube is mounted at the lower end of the main sampling tube, and a cutting edge is arranged at the lower port of the lower sampling tube. A knocking structure is arranged on the upper surface of the base, an upper cover is detachably mounted at an upper end opening of the main sampling pipe, a lower cover is detachably mounted at a lower end opening of the main sampling pipe, the knocking structure comprises a connecting plate fixedly connected to the upper surface of the base, and a sliding rod is slidably connected into the connecting plate; a guide block is fixedly installed at the lower end of the sliding rod, and the lower end of the guide block is fixedly connected with a knocking block. According to the soil bulk density sampler, the knocking structure is arranged, so that accurate knocking work of the soil bulk density sampler is facilitated, compaction of soil to be detected is avoided due to the design of the upper sampling tube, and damage of collected soil during sampling is prevented due to the design of the upper sampling tube and the lower sampling tube.

Description

Technical Field

[0001] The utility model relates to the technical field of soil bulk density samplers, in particular to a soil bulk density sampler. Background Art

[0002] Soil bulk density sampler is a tool used to measure soil bulk density. Soil bulk density refers to the mass of soil per unit volume, usually expressed in grams per cubic centimeter or grams per cubic meter. Soil bulk density is one of the physical properties of soil and is an important parameter for calculating agricultural irrigation volume.

[0003] A Chinese patent with the announcement number CN205538296U discloses a soil profile bulk density sampler. The patented technology includes: a ring knife, a handle, a ring knife receiver and a sleeve. The cross section of the ring knife receiver is circular and is surrounded by two semicircular receiving sheets. The outer circumference of the connection between the two receiving sheets is provided with a boss protruding the receiving sheet. The sleeve is sleeved on the ring knife receiver through the boss. One end face of the ring knife is provided with a blade for cutting objects. The ring knife is placed in the ring knife receiver. The handle is arranged on the back side of the ring knife and is movably connected with the ring knife receiver. During operation, samples of soil bulk density at a deeper depth can be obtained in sequence on the basis of the first bulk density sampling. Each time a bulk density sample is taken, it is only necessary to take out the ring knife receiver and then take out the ring knife therein. When sampling the next layer, it is only necessary to install a new ring knife in the ring knife receiver and install the ring knife receiver along the sleeve thread to sample the next layer of bulk density, which is convenient and quick.

[0004] The existing related technologies often have the following defects: in the actual use of the ring knife, it is often necessary to knock the handle to insert the ring knife into the soil. In the process of directly knocking the ring knife, it is not easy to knock the ring knife directly, and the ring knife is not easy to insert vertically into the soil. When the handle is knocked excessively, the overflowing soil compacts the soil to be measured in the ring knife and increases the measurement result. When taking out the ring knife, it is easy to damage the soil at the upper and lower ends of the ring knife, causing soil extraction failure.

[0005] Based on the above problems, a utility model of the soil bulk density sampler is proposed. Utility Model Content

[0006] The utility model aims to solve the problem of soil compaction or sampling damage caused by a ring knife in the prior art, and proposes a soil bulk density sampler.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a soil bulk density sampler comprises a main sampling tube, a knocking block and a base, the upper end of the main sampling tube is installed with an upper sampling tube, the lower end of the main sampling tube is installed with a lower sampling tube, the lower port of the lower sampling tube is provided with a cutting edge, the upper surface of the base is provided with a knocking structure, the upper port of the main sampling tube is detachably installed with an upper cover, the lower port of the main sampling tube is detachably installed with a lower cover, the knocking structure comprises a connecting plate fixedly connected to the upper surface of the base, the internal sliding connection of the connecting plate is connected to a sliding rod, the lower end of the sliding rod is fixedly installed with a guide block, the lower end of the guide block is fixedly connected to the knocking block, the surface of the base is fixedly installed with a limiting cylinder, the inner diameter size of the limiting cylinder is adapted to the outer diameter size of the main sampling tube, and the lower surface of the base is fixedly connected with four cone rods.

[0008] The effect achieved by the above components is: by setting the sliding rod to slide inside the connecting plate, it plays a role in limiting the moving direction of the knocking block, facilitating the accurate knocking of the knocking block on the upper sampling tube, and further improving the efficiency of the soil bulk density sampler in soil sampling.

[0009] Preferably, a fixed cover is fixedly installed on the side wall of the sliding rod, a folding tube is fixedly installed on the lower port of the fixed cover, a circular ring frame is fixedly installed on the lower port of the folding tube, a moving rod is fixedly installed on the side wall of the knocking block, and the moving rod and the circular ring frame are internally slidably connected.

[0010] Preferably, the inner thread of the circular ring frame is connected with a screw rod, and the screw rod is rotationally connected to the inner part of the knocking block.

[0011] The effects achieved by the above components are: the circular ring frame can be moved by rotating the screw rod inside the circular ring frame, and the folding tube can be stretched during the movement of the circular ring frame.

[0012] Preferably, the outer surface of the cone rod is covered with a protective tube, the upper end of the protective tube is fixedly mounted with a magnetic ring, the base is made of metal, and the magnetic ring and the base attract each other.

[0013] The effect achieved by the above components is: the magnetic ring and the protective tube are sequentially sleeved on the side wall of the cone rod, the magnetic ring will be adsorbed on the surface of the base, and the cone rod on the base can be covered.

[0014] Preferably, a mounting structure is provided on the surface of the main sampling tube, and the mounting structure includes outer annular grooves opened at both ends of the main sampling tube, and inner annular grooves are opened on the inner sides of the upper sampling tube and the lower sampling tube, and the outer diameter size of the outer annular groove is matched with the inner diameter size of the inner annular groove.

[0015] The effect achieved by the above components is: the outer ring groove and the inner ring groove are butted together to achieve the preliminary fixing and installation work between the main sampling tube and the upper sampling tube or the lower sampling tube.

[0016] Preferably, a clamping block is fixedly installed on the inner side of the inner ring groove, and two clamping grooves are provided on the side wall of the outer ring groove, and the clamping grooves are of "L"-shaped structure.

[0017] The effect achieved by the above components is: after the protrusion is inserted into the bottom side of the slot, the main sampling tube and the upper sampling tube or the lower sampling tube are twisted to achieve preliminary buckling of the main sampling tube and the upper sampling tube or the lower sampling tube.

[0018] Preferably, a locking groove connected to the clamping groove is formed on the side wall of the outer ring groove, and the locking groove is a "V"-shaped structure.

[0019] The effect achieved by the above components is: the clamping block is sleeved on the inner side of the locking groove, and the "V"-shaped locking groove can realize the clamping work of the clamping block.

[0020] To sum up: in the utility model, by setting the sliding rod to slide inside the connecting plate, the moving direction of the knocking block is limited, which facilitates the accurate knocking of the upper sampling tube by the knocking block. By setting the knocking structure, the accurate knocking of the soil bulk density sampler is facilitated, and the knocking force can be flexibly adjusted on the spot, which improves the accuracy of soil sampling using the soil bulk density sampler to a certain extent.

[0021] In the utility model, after the protrusion is inserted into the bottom side of the card slot, the main sampling tube and the upper sampling tube or the lower sampling tube are twisted, and the card block is sleeved on the inner side of the restraining groove. The "V"-shaped structure restraining groove can realize the clamping work of the card block, thereby realizing the docking work between the main sampling tube and the upper sampling tube or the lower sampling tube. By setting the installation structure, the rapid docking work between the main sampling tube and the upper sampling tube or the lower sampling tube is facilitated, and the normal use of the main sampling tube will not be affected after the docking, thereby improving the assembly and disassembly efficiency between the main sampling tube and the upper sampling tube or the lower sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0023] Figure 2 It is a partial structural schematic diagram of the utility model.

[0024] Figure 3 For the utility model Figure 2 Schematic diagram of the local structure.

[0025] Figure 4 This is a schematic diagram of the disassembled structure of the upper sampling tube in the utility model.

[0026] Figure 5 It is a structural schematic diagram of the upper sampling tube in the utility model.

[0027] Figure 6 For the utility model Figure 5 Enlarged view of point B.

[0028] Figure 7 For the utility model Figure 1 Enlarged view of point A.

[0029] Legend: 1. Main sampling tube; 2. Upper sampling tube; 3. Lower sampling tube; 4. Base; 5. Knocking block; 6. Knocking structure; 601. Folding tube; 602. Limiting tube; 603. Conical rod; 604. Protective tube; 605. Magnetic ring; 606. Connecting plate; 607. Sliding rod; 608. Guide block; 609. Screw; 610. Fixed cover; 611. Moving rod; 612. Ring frame; 7. Cutting blade; 8. Mounting structure; 81. Outer ring groove; 82. Inner ring groove; 83. Block; 84. Slot; 85. Confinement groove; 9. Upper cover; 10. Lower cover; 11. Water absorption hole. DETAILED DESCRIPTION

[0030] Reference Figure 1-7 As shown, the utility model provides a technical solution: a soil bulk density sampler, comprising a main sampling tube 1, a knocking block 5 and a base 4, an upper sampling tube 2 is installed at the upper end of the main sampling tube 1, a lower sampling tube 3 is installed at the lower end of the main sampling tube 1, a cutting blade 7 is provided at the lower port of the lower sampling tube 3, a knocking structure 6 is provided on the upper surface of the base 4, an upper cover 9 is detachably installed at the upper port of the main sampling tube 1, a lower cover 10 is detachably installed at the lower port of the main sampling tube 1, and a mounting structure 8 is provided on the surface of the main sampling tube 1.

[0031] The specific arrangement and function of the striking structure 6 and the mounting structure 8 will be described in detail below.

[0032] Reference Figure 1-Figure 5As shown, in this embodiment: the knocking structure 6 includes a connecting plate 606 fixedly connected to the upper surface of the base 4, a sliding rod 607 is slidably connected inside the connecting plate 606, a guide block 608 is fixedly installed at the lower end of the sliding rod 607, and the lower end of the guide block 608 is fixedly connected to the knocking block 5, a limiting cylinder 602 is fixedly installed on the surface of the base 4, and the inner diameter of the limiting cylinder 602 is compatible with the outer diameter of the main sampling tube 1, and four cone rods 603 are fixedly connected to the lower surface of the base 4. By setting the sliding rod 607 to slide inside the connecting plate 606, the moving direction of the knocking block 5 is limited, which facilitates the accurate knocking of the knocking block 5 on the upper sampling tube 2, and further improves the efficiency of the soil bulk density sampler in soil sampling. A fixed cover 610 is fixedly installed on the side wall of the slide rod 607, a folding tube 601 is fixedly installed on the lower end of the fixed cover 610, a circular ring frame 612 is fixedly installed on the lower end of the folding tube 601, a moving rod 611 is fixedly installed on the side wall of the knocking block 5, and the moving rod 611 and the circular ring frame 612 are internally slidably connected.

[0033] The inner thread of the ring frame 612 is connected with a screw rod 609, and the screw rod 609 is connected to the inner rotation of the knocking block 5. The screw rod 609 inside the rotating ring frame 612 can realize the mobile work of the ring frame 612, and the extension work of the folding tube 601 can be realized during the movement of the ring frame 612. The outer surface of the cone rod 603 is covered with a protective tube 604, and the upper end of the protective tube 604 is fixedly installed with a magnetic ring 605, and the base 4 is a metal material, and the magnetic ring 605 and the base 4 attract each other. The magnetic ring 605 and the protective tube 604 are successively covered on the side wall of the cone rod 603, and the magnetic ring 605 can be adsorbed on the surface of the base 4, which can realize the covering work of the cone rod 603 on the base 4.

[0034] Reference Figure 4-Figure 7 As shown, specifically, the mounting structure 8 includes outer annular grooves 81 formed at both ends of the main sampling tube 1, and inner annular grooves 82 are formed on the inner sides of the upper sampling tube 2 and the lower sampling tube, and the outer diameter of the outer annular groove 81 matches the inner diameter of the inner annular groove 82. The outer annular groove 81 and the inner annular groove 82 are butted together to achieve the preliminary fixing and mounting work between the main sampling tube 1 and the upper sampling tube 2 or the lower sampling tube 3.

[0035] A clamping block 83 is fixedly installed on the inner side of the inner annular groove 82, and two clamping grooves 84 are provided on the side wall of the outer annular groove 81, and the clamping groove 84 is an "L"-shaped structure. After inserting the protrusion into the bottom side of the clamping groove 84, the main sampling tube 1 and the upper sampling tube 2 or the lower sampling tube 3 are twisted to achieve the preliminary buckling work of the main sampling tube 1 and the upper sampling tube 2 or the lower sampling tube 3. A locking groove 85 connected to the locking groove 84 is provided on the side wall of the outer annular groove 81, and the locking groove 85 is a "V"-shaped structure. The clamping block 83 is sleeved on the inner side of the locking groove 85, and the "V"-shaped locking groove 85 can achieve the clamping work of the clamping block 83.

[0036] Working principle: when it is necessary to sample the soil, first insert the cone rod 603 on the base 4 into the muddy ground, which can realize temporary fixing of the base 4 and improve the stability of the base 4 in the later use. After the main sampling tube 1, the upper sampling tube 2 and the lower sampling tube 3 are connected, the port position of the lower sampling tube 3 is sleeved on the inner side of the sleeve. At this time, the soil sampling direction of the main sampling tube 1 can be limited, which is convenient for effective stratified sampling of the soil. By setting the sliding rod 607 to slide inside the connecting plate 606, the moving direction of the knocking block 5 is limited, which facilitates the accurate knocking of the upper sampling tube 2 by the knocking block 5, and further improves the accuracy of soil sampling by the soil bulk density sampler. After using the base 4, the magnetic ring 605 and the protective tube 604 are successively sleeved on the side wall of the cone rod 603, and the magnetic ring 605 will be adsorbed on the surface of the base 4, which can realize the 3, which improves the safety of the base 4 during carrying. The screw 609 inside the circular frame 612 can be rotated to realize the movement of the circular frame 612. The folding tube 601 can be stretched during the movement of the circular frame 612, wherein the moving rod 611 slides inside the circular frame 612 to limit the moving direction of the circular frame 612. By setting the folding tube 601, the flexible weight balance work of the knocking block 5 position is facilitated, and the knocking sampling effect of the soil bulk density sampler is further improved. After the soil sampling is completed, the upper sampling tube 2 and the lower sampling tube 3 are opened, the excess soil is trimmed, and the upper and lower openings are flattened. The upper cover 9 and the lower cover 10 are respectively installed at both ends of the main sampling tube 1, which facilitates the carrying of the soil inside the main sampling tube 1 after sampling. The water absorption hole 11 can realize the water absorption work, which is convenient for the later soil detection work.

[0037] The connection method between the main sampling tube 1 and the upper sampling tube 2 or the lower sampling tube 3 can ensure the tight connection of the three parts and protect the collected soil from being damaged at the upper and lower ends of the main sampling tube 1.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. A soil bulk density sampler, comprising a main sampling tube (1), a knocking block (5) and a base (4), characterized in that: An upper sampling tube (2) is mounted on the upper end of the main sampling tube (1), a lower sampling tube (3) is mounted on the lower end of the main sampling tube (1), a cutting blade (7) is provided at the lower end of the lower sampling tube (3), a knocking structure (6) is provided on the upper surface of the base (4), an upper cover (9) is detachably mounted on the upper end of the main sampling tube (1), a lower cover (10) is detachably mounted on the lower end of the main sampling tube (1), and the knocking structure (6) comprises a connecting member fixedly connected to the upper surface of the base (4). A connecting plate (606) is internally slidably connected to a slide bar (607), a guide block (608) is fixedly mounted on the lower end of the slide bar (607), the lower end of the guide block (608) is fixedly connected to a knocking block (5), a limiting cylinder (602) is fixedly mounted on the surface of the base (4), the inner diameter of the limiting cylinder (602) is matched to the outer diameter of the main sampling tube (1), and four conical rods (603) are fixedly connected to the lower surface of the base (4).

2. The soil bulk density sampler according to claim 1, characterized in that: A fixed cover (610) is fixedly mounted on the side wall of the sliding rod (607), a folding tube (601) is fixedly mounted on the lower end of the fixed cover (610), a circular ring frame (612) is fixedly mounted on the lower end of the folding tube (601), a moving rod (611) is fixedly mounted on the side wall of the knocking block (5), and the moving rod (611) and the circular ring frame (612) are internally slidably connected.

3. The soil bulk density sampler according to claim 2, characterized in that: The inner thread of the circular ring frame (612) is connected with a screw rod (609), and the screw rod (609) is rotatably connected to the inner part of the knocking block (5).

4. The soil bulk density sampler according to claim 1, characterized in that: The outer surface of the cone rod (603) is covered with a protective tube (604), and a magnetic ring (605) is fixedly mounted on the upper end of the protective tube (604). The base (4) is made of metal, and the magnetic ring (605) and the base (4) attract each other.

5. The soil bulk density sampler according to claim 1, characterized in that: The surface of the main sampling tube (1) is provided with a mounting structure (8), the mounting structure (8) comprising outer annular grooves (81) formed at both ends of the main sampling tube (1), inner annular grooves (82) formed on the inner sides of the upper sampling tube (2) and the lower sampling tube, the outer diameter of the outer annular groove (81) being compatible with the inner diameter of the inner annular groove (82).

6. The soil bulk density sampler according to claim 5, characterized in that: A clamping block (83) is fixedly mounted on the inner side of the inner ring groove (82), and two clamping grooves (84) are provided on the side wall of the outer ring groove (81), wherein the clamping grooves (84) are of an "L"-shaped structure.

7. The soil bulk density sampler according to claim 6, characterized in that: A locking groove (85) connected to the clamping groove (84) is formed on the side wall of the outer ring groove (81), and the locking groove (85) is a "V"-shaped structure.

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