Soil hardness detector for soil detection

Abstract

The utility model relates to the field of detectors, in particular to a soil hardness detector for soil detection, which comprises a base and a connecting bracket, a supporting bracket is arranged on the top of the base; a supporting rod is arranged on the top of the base; a supporting plate is arranged at the top of the supporting rod; a clamping structure for clamping and fixing is arranged on the supporting rod; a lifting structure for vertically sliding is arranged on the top of the supporting bracket; according to the utility model, the detection accuracy and the pressing accuracy of the device can be effectively improved through the combination of the weight limiting piece and the extrusion piece, and the pressing force of the sliding structure of the device is controlled through the weight of the weight; therefore, the risk of motor burnout caused by traditional motor driving can be avoided while introduction of manual errors is avoided, and meanwhile, the pressure intensity of the device on the surface of the soil sample can be switched by switching extrusion piece structures of different shapes.

Description

Technical Field

[0001] The utility model relates to the technical field of detectors, in particular to a soil hardness detector for soil detection. Background Art

[0002] Soil environmental monitoring refers to determining the environmental quality (or pollution level) and its changing trend by measuring the representative values ​​of factors affecting soil environmental quality. What we usually call soil monitoring refers to soil environmental monitoring, which generally includes technical contents such as point sampling, sample preparation, analysis methods, result characterization, data statistics and quality evaluation. Compacted soil can prevent water infiltration, reduce the utilization rate of fertilizers, affect plant root growth, and lead to crop yield reduction.

[0003] A Chinese patent with authorization announcement number CN215598923U discloses a soil hardness tester for soil testing, including a shell and a driving member, wherein the driving member is fixedly mounted on the top of the inner cavity of the shell, a movable plate is fixedly mounted on the output end of the driving member, the movable plate is slidably connected to the inside of the shell, a detection probe is fixedly mounted at the bottom center of the movable plate, and a guide member is provided below the detection probe; by providing a retractable guide member at the bottom of the detection probe, when the detection probe moves downward for detection, the first guide reinforcement tube and the second guide reinforcement tube penetrate into the interior of the soil with the movement of the detection probe, and provide a guiding function for the movement of the detection probe at the top of the detection probe, and at the same time protect the detection probe, effectively preventing the detection probe from shaking or breaking during the insertion process, thereby extending the service life of the detection probe.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: the above-mentioned device is not highly targeted in detecting different types of soil, and the extrusion method of mechanical transmission is likely to cause the motor to burn out. Utility Model Content

[0005] The purpose of the utility model is to address the technical problems existing in the background technology. The utility model proposes a soil hardness tester for soil testing. The utility model can effectively improve the detection accuracy and downward pressure accuracy of the device through the combination of a weight limiter and an extrusion member. The downward pressure of the sliding structure of the device is controlled by the weight of the weight, thereby avoiding the introduction of human errors and the risk of motor burning caused by traditional motor drive. At the same time, the combination of the rotating shaft and the rotating member can realize the switching of the pressure on the surface of the soil sample by rotating and switching the extrusion member structure of different shapes, thereby realizing the effect of the device for targeted hardness detection of different types of soil samples and increasing the detection range of the device.

[0006] The utility model provides a soil hardness tester for soil testing, comprising a base and a connecting bracket; a supporting bracket is arranged on the top of the base; a supporting rod is arranged on the top of the base; a supporting plate is arranged on the top of the supporting rod; a clamping structure for clamping and fixing is arranged on the supporting rod; a lifting structure for vertical sliding is arranged on the top of the supporting bracket; a rotating structure for switching is arranged on the side of the connecting bracket;

[0007] The clamping structure includes a clamping piece; a circular arc is arranged on the side of the clamping piece, and the bottom of multiple groups of clamping pieces are slidably connected with the support plate; a threaded bidirectional screw rod is arranged on the side of the clamping piece; the side of the bidirectional screw rod is rotatably connected with the top of the support plate; and a sample dish is arranged on the top of the support plate.

[0008] Preferably, the lifting structure includes a top platform; a sliding damping member is provided on the top platform; a scale rod connected to the sliding damping member is provided on the side of the sliding damping member; a plurality of through holes are provided on the top platform; the side of the scale rod is slidingly connected to the top platform; a plurality of groups of sliding limit rods with sliding connections are provided on the top platform; a sliding limit member is provided on the top of the plurality of sliding limit rods; the bottom of the sliding limit member is in contact with the top platform; a connecting bracket is provided on the bottom of the sliding limit rod; and the top of the connecting bracket is connected to the scale rod.

[0009] Preferably, the rotating structure includes a weight limiter; a rotating shaft connected for rotation is provided on the side of the connecting bracket; a plurality of groups of limit grooves are provided on the side of the rotating shaft; a threaded piece is provided on the side of the connecting bracket; a vertical threaded rod connected by thread is provided on the threaded piece; the bottom of the vertical threaded rod is rotatably connected to the connecting bracket; a spring bracket is provided on the end of the side of the threaded piece passing through the connecting bracket; a spring is provided at the bottom of the spring bracket; a limiter is provided on the end of the spring away from the spring bracket; the limiter contacts the inner wall of the limit groove; a rotating piece is provided on the side of the rotating shaft away from the connecting bracket; the rotating piece is in a cross structure; and a plurality of groups of different extrusion pieces are provided on the side of the rotating piece.

[0010] Preferably, an anti-skid layer is provided on the side surface of the inner wall of the clamping member, and a rotation stopper is provided on the support plate, and the rotation stopper is connected to the side surface of the bidirectional screw rod for rotation damping.

[0011] Preferably, a buffer pad is provided on the bottom of the sliding limiter, and the buffer pad contacts the top of the top platform.

[0012] Preferably, a wear-resistant layer is provided on the outer end surface of the extrusion piece, and multiple groups of extrusion pieces are distributed on the side of the rotating piece, and the multiple groups of extrusion pieces are different.

[0013] Preferably, a sliding groove is provided on the side of the connecting bracket, and the side of the threaded member passes through the sliding groove and is connected to the side of the spring bracket.

[0014] Preferably, a pointer is provided on the side of the top platform, and the pointer faces the side of the scale rod.

[0015] The above technical solution of the utility model has the following beneficial technical effects:

[0016] The utility model can effectively improve the detection accuracy and downward pressure accuracy of the device through the combination of the weight limiter and the extrusion member, and control the downward pressure of the sliding structure of the device through the weight of the weight, thereby avoiding the introduction of human errors and the risk of motor burning caused by traditional motor drive. At the same time, the device can switch the pressure on the surface of the soil sample by switching the extrusion member structure of different shapes, thereby achieving the effect of the device performing targeted hardness detection on different types of soil samples and increasing the detection range of the device. The combination of the limiter and the limit groove can effectively improve the device from accidentally rotating during the hardness detection process, thereby ensuring that the device only has downward pressure in the vertical direction, and the structure of the sliding limit rod and the scale rod can judge the hardness of the current soil through the descending scale. At the same time, the structure of the sliding damping member avoids the collision between the extrusion member and the sample dish caused by the rapid sliding of the scale rod, thereby improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of an embodiment of the soil hardness detector for soil detection of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the scale rod in the embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the clamping member in the embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of part A in the embodiment of the utility model;

[0021] 1. Base; 2. Support bracket; 3. Support rod; 4. Support plate; 5. Clamp; 6. Sample dish; 7. Bidirectional screw; 8. Top platform; 9. Scale rod; 10. Sliding damping member; 11. Sliding limit rod; 12. Sliding limit member; 13. Connecting bracket; 14. Weight limit member; 15. Spring bracket; 16. Spring; 17. Limit member; 18. Rotating shaft; 19. Rotating member; 20. Extrusion member; 21. Threaded member; 22. Vertical threaded rod. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0023] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0024] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0027] Embodiment 1

[0028] like Figure 1-Figure 4As shown, the soil hardness tester for soil testing proposed by the utility model includes a base 1, a support bracket 2, a support rod 3, a support plate 4, a clamping member 5, a sample dish 6, a bidirectional screw rod 7, a top platform 8, a scale rod 9, a sliding damping member 10, a sliding limit rod 11, a sliding limit member 12, a connecting bracket 13, a weight limit member 14, a spring bracket 15, a spring 16, a limit member 17, a rotating shaft 18, a rotating member 19, an extrusion member 20, a threaded member 21 and a vertical threaded rod 22;

[0029] A support bracket 2 is provided on the top of the base 1; a support rod 3 is provided on the top of the base 1; a support plate 4 is provided on the top of the support rod 3; a clamping structure for clamping and fixing is provided on the support rod 3; a lifting structure for vertical sliding is provided on the top of the support bracket 2; a rotating structure for switching is provided on the side of the connecting bracket 13;

[0030] The clamping structure includes a clamping member 5; a circular arc is provided on the side of the clamping member 5, and the bottom of multiple groups of clamping members 5 are slidably connected to the support plate 4; a two-way screw rod 7 with a threaded connection is provided on the side of the clamping member 5; the side of the two-way screw rod 7 is rotatably connected to the top of the support plate 4; a sample dish 6 is provided on the top of the support plate 4;

[0031] The lifting structure includes a top platform 8; a sliding damping member 10 is provided on the top platform 8; a scale rod 9 connected to the sliding damping member is provided on the side of the sliding damping member 10; a plurality of through holes are provided on the top platform 8; the side of the scale rod 9 is slidably connected to the top platform 8; a plurality of sliding limit rods 11 are provided on the top platform 8 for sliding connection; a sliding limit member 12 is provided on the top of the plurality of sliding limit rods 11; the bottom of the sliding limit member 12 contacts the top platform 8; a connecting bracket 13 is provided on the bottom of the sliding limit rod 11; the top of the connecting bracket 13 is connected to the scale rod 9;

[0032] The rotating structure includes a weight limiter 14; a rotating shaft 18 rotatably connected is provided on the side of the connecting bracket 13; a plurality of limit grooves are provided on the side of the rotating shaft 18; a threaded member 21 is provided on the side of the connecting bracket 13; a vertical threaded rod 22 is threadedly connected on the threaded member 21; the bottom of the vertical threaded rod 22 is rotatably connected to the connecting bracket 13; a spring bracket 15 is provided on the end of the side of the threaded member 21 passing through the connecting bracket 13; a spring 16 is provided on the bottom of the spring bracket 15; a limiter 17 is provided on the end of the spring 16 away from the spring bracket 15; the limiter 17 contacts the inner wall of the limit groove; a rotating member 19 is provided on the side of the rotating shaft 18 away from the connecting bracket 13; the rotating member 19 is in a cross structure; a plurality of different extrusion members 20 are provided on the side of the rotating member 19;

[0033] In this embodiment, the device can effectively improve the targeted detection effect of soil samples, improve the detection precision and accuracy of the device, and compared with the traditional device, the device can achieve the effect of switching the contact surface with different pressures by rotating and switching, thereby ensuring the targeted adaptive detection effect of the device. When the device is in a working state, by placing the soil sample in the sample dish 7, the clamping and fixing effect of the device on the sample dish 7 can be achieved through the combination of the clamping member 5, thereby avoiding the problem of displacement during the detection process. By placing the extrusion member 20 on the surface of the soil sample, the device can squeeze the soil sample by placing a weight at this time. Different sizes of extrusion members 20 can be switched for extrusion according to different sizes of soil. When the extrusion member 20 needs to be switched, the threaded member 21 slides upward by rotating the vertical threaded rod 22, thereby avoiding the contact between the limit member 17 and the limit groove. At this time, the rotating shaft 18 can rotate freely. By turning the rotating member 19 to rotate to the appropriate extrusion member 20 facing directly downward, the vertical threaded rod 22 can be rotated to press the limit member 17 down into the limit groove, thereby placing the rotating shaft 18 to rotate.

[0034] The rotating shaft 18 structure connected by rotation can make the rotating member 19 rotate on the side of the connecting bracket 13, and the limit groove and other structures on the side of the rotating shaft 18 can prevent the rotating shaft 18 from rotating unexpectedly when it is switched to a certain angle. The structure of the sliding damping member 10 can prevent the free fall acceleration of the scale rod 9 during the sliding process, and the sliding damping member 10 can balance the weight of the scale rod 9, so that the downward pressure of the extrusion member 20 can be equal to the gravity of the weight, thereby reducing the difficulty of data collection of the device, thereby avoiding the collision between the extrusion member 20 and the sample dish 6, while ensuring the detection effect of the device pressing, and avoiding the problem of inaccurate hardness detection caused by falling impact.

[0035] At the same time, by rotating the rotating member 19, the effect of different sizes of extrusion members 20 contacting the soil surface can be achieved, thereby achieving the targeted adjustment and detection effect of the device. For soil samples with different hardness, the hardness detection effect of the device is achieved by switching different sizes of extrusion members 20.

[0036] The two-way screw rod 7 drives the multiple groups of clamping parts 5 to slide linearly, so as to achieve the effect of fixing the position of the sample dish 6 by the clamping parts 5. Before the test, the scale rod 9 is lifted upward so that the pressing part 20 does not contact the sample dish 7. At this time, the soil sample is placed in the sample dish 7 and the scale rod 9 is loosened so that the pressing part 20 contacts the soil surface. At this time, the downward pressure on the soil surface can be increased by adding weights to the weight limiter 14. When the sample is too large, the lifting bracket 21 is driven to slide upward by rotating the vertical threaded rod 22, and the lifting bracket 21 is The movable spring bracket 15 slides upward, and the spring 16 is driven to slide upward through the spring bracket 15, and the limit piece 17 is driven to slide upward through the spring 16. At this time, the limit groove of the rotating shaft 18 is not in contact with the limit piece 17, and the rotating shaft 18 can rotate freely. After rotating the rotating member 19 to a suitable position, the vertical threaded rod 22 is rotated in the opposite direction to make the limit piece 17 slide downward, so that the limit piece 17 enters the inside of the limit groove, thereby realizing the locking of the rotating shaft 18. After the extrusion piece 20 is rotated and switched, the hardness test is performed again by the weight.

[0037] Embodiment 2

[0038] like Figure 1-Figure 4 As shown, the soil hardness tester for soil testing proposed by the utility model is compared with the first embodiment. In this embodiment, an anti-slip layer is provided on the inner wall side of the clamping member 5, and a rotation stopper is provided on the support plate 4, and the rotation stopper is connected to the side rotation damping of the bidirectional screw rod 7.

[0039] The structure of the clamping member 5 can effectively improve the fixing effect of the device. Meanwhile, the structure of the clamping member 5 can make the device compatible with sample dishes 7 of different sizes, thereby ensuring the compatibility of the device.

[0040] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0041] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. Soil hardness tester for soil testing, It is characterized in that The device comprises a base (1) and a connecting bracket (13); a supporting bracket (2) is provided on the top of the base (1); a supporting rod (3) is provided on the top of the base (1); a supporting plate (4) is provided on the top of the supporting rod (3); a clamping structure for clamping and fixing is provided on the supporting rod (3); a lifting structure for vertical sliding is provided on the top of the supporting bracket (2); and a rotating structure for switching is provided on the side of the connecting bracket (13); The clamping structure comprises a clamping member (5); a circular arc is provided on the side of the clamping member (5); the bottom of multiple groups of clamping members (5) are slidably connected to the support plate (4); a threaded bidirectional screw rod (7) is provided on the side of the clamping member (5); the side of the bidirectional screw rod (7) is rotatably connected to the top of the support plate (4); and a sample dish (6) is provided on the top of the support plate (4).

2. The soil hardness detector for soil testing according to claim 1, It is characterized in that The lifting structure comprises a top platform (8); a sliding damping member (10) is provided on the top platform (8); a sliding damping connected scale rod (9) is provided on the side of the sliding damping member (10); a plurality of through holes are provided on the top platform (8); the side of the scale rod (9) is slidingly connected to the top platform (8); a plurality of sliding limit rods (11) are provided on the top platform (8); a sliding limit member (12) is provided on the top of the plurality of sliding limit rods (11); the bottom of the sliding limit member (12) contacts the top platform (8); a connecting bracket (13) is provided on the bottom of the sliding limit rod (11); the top of the connecting bracket (13) is connected to the scale rod (9).

3. The soil hardness detector for soil testing according to claim 1, It is characterized in that The rotating structure comprises a weight stopper (14); a rotating shaft (18) rotatably connected is provided on the side of the connecting bracket (13); a plurality of groups of stopper grooves are provided on the side of the rotating shaft (18); a threaded member (21) is provided on the side of the connecting bracket (13); a vertical threaded rod (22) is threadedly connected on the threaded member (21); the bottom of the vertical threaded rod (22) is rotatably connected to the connecting bracket (13); a spring bracket (15) is provided on the end of the side of the threaded member (21) passing through the connecting bracket (13); a spring (16) is provided on the bottom of the spring bracket (15); a stopper (17) is provided on the end of the spring (16) away from the spring bracket (15); the stopper (17) contacts the inner wall of the stopper groove; a rotating member (19) is provided on the side of the rotating shaft (18) away from the connecting bracket (13); the rotating member (19) is in a cross structure; and a plurality of groups of different extrusion members (20) are provided on the side of the rotating member (19).

4. The soil hardness detector for soil testing according to claim 1, It is characterized in that An anti-slip layer is provided on the inner wall side of the clamping member (5), and a rotation stopper is provided on the support plate (4). The rotation stopper is connected to the side rotation damping of the bidirectional screw rod (7).

5. The soil hardness detector for soil testing according to claim 2, It is characterized in that A buffer pad is provided on the bottom of the sliding limiter (12), and the buffer pad is in contact with the top of the top platform (8).

6. The soil hardness tester for soil testing according to claim 3, It is characterized in that A wear-resistant layer is provided on the outer end surface of the extrusion piece (20). Multiple groups of extrusion pieces (20) are distributed on the side of the rotating piece (19), and the multiple groups of extrusion pieces (20) are different from each other.

7. The soil hardness detector for soil testing according to claim 3, It is characterized in that A sliding groove is provided on the side of the connecting bracket (13), and the side of the threaded member (21) passes through the sliding groove and is connected to the side of the spring bracket (15).

8. The soil hardness detector for soil testing according to claim 2, It is characterized in that A pointer is arranged on the side of the top platform (8), and the pointer faces the side of the scale rod (9).

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