Device for measuring pullout force of plant root system

Abstract

The invention discloses a device for measuring the pullout force of a plant root system, and relates to the technical field of plant root system pullout force measurement, and the device comprises two groups of concave frames which are spliced and fixed through a splicing locking mechanism; the levelness of the device is displayed by arranging the leveling instrument on the front face of the concave frame, and the supporting height of the concave frame is adjusted through the supporting height adjusting mechanism at the bottom end of the supporting block, so that the concave frame can be kept balanced in the process of pulling out a plant root system, and then the measurement precision is guaranteed to a certain extent; the clamping adjusting mechanism drives the two sets of clamping plates to move oppositely, the sawtooth anti-slip strips on the opposite sides of the two sets of clamping plates are used for firmly clamping and fixing the plant to be measured, and therefore the plant is not prone to slipping when pulled out, and in addition, the pulling force for pulling out the plant root system is measured through the digital display tension meter. And the pulling force is displayed by the pulling force display screen on the front side of the concave frame, so that the pulling force measurement result of the plant root system can be visually displayed.

Description

Technical Field

[0001] The invention relates to the technical field of plant root tension measurement, and in particular to a device for measuring the pull-out force of plant roots. Background Art

[0002] Plants are a large group in the biological kingdom and belong to the kingdom level classification. They usually refer to a class of multicellular organisms that can carry out photosynthesis. Plants convert carbon dioxide and water into organic matter through photosynthesis and release oxygen. This process is the basis of energy circulation for most life forms on Earth. Plant roots are an important component of plants and are responsible for physiological functions such as absorbing water and nutrients, fixing the plant body, and performing photosynthesis. The structure and function of the root system have an important influence on the growth, development, stress resistance and yield of plants.

[0003] Plant root pullout force refers to the force required to pull plant roots out of the soil. It is affected by factors such as plant root characteristics and soil conditions. This force reflects the intensity of interaction between the roots and the soil and is an important indicator for evaluating the soil-fixing ability of plants. Its measurement and application are of great significance for environmental protection and land use planning. In the prior art, it is generally necessary to measure the plant root pullout force through a corresponding plant root pullout force measuring device.

[0004] Most of the existing plant root pull-out force measuring devices have a single structure, which is not convenient for adaptively adjusting the support height of the device body according to the inclination of the ground soil, so that it is impossible to maintain balance during the process of pulling out the plant roots, and the measurement accuracy cannot be guaranteed. In addition, the plant body cannot be firmly clamped during the process of pulling out the plant roots, which causes the plant to slip easily during the pulling out, thereby affecting the normal measurement work. In addition, the measurement results cannot be displayed intuitively, which is inconvenient to use. Therefore, the present invention proposes a device for measuring the pull-out force of plant roots to solve the problems existing in the prior art. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to propose a device for measuring the pull-out force of plant roots, which solves the problems that the existing plant root pull-out force measuring device is not convenient for adaptively adjusting the support height of the device body according to the inclination of the ground soil, thereby failing to maintain balance during the process of pulling out the plant roots, and failing to firmly clamp the plant body during the process of pulling out the plant roots, causing the plant to slip easily during pulling out, and failing to intuitively display the measurement results.

[0006] In order to achieve the purpose of the present invention, the present invention is implemented through the following technical scheme: a device for measuring the pull-out force of plant roots, comprising a concave frame, the concave frame is provided with two groups and is spliced ​​and fixed by a splicing locking mechanism, the top ends of the two groups of concave frames are slidably provided with a support plate, a cylinder is fixed on the support plate, a lifting plate is fixed on the bottom end of the cylinder, a digital display tensile gauge is fixed on the bottom end of the lifting plate, a test rod at the bottom end of the digital display tensile gauge is suspended with a concave plate slidably connected to the inner side of the concave frame, a splint driven for displacement by a clamping adjustment mechanism is provided on the inner side of the concave plate, serrated anti-slip strips are fixed on the opposite sides of the two groups of splints, a tension display screen electrically connected to the digital display tensile gauge is fixed on the front side of the concave frame, support blocks are symmetrically fixed on the inner walls of the opposite sides of the two groups of concave frames, a support height adjustment mechanism is fixed on the bottom end of the support block, and a level ruler is fixed on the front side of the concave frame.

[0007] A further improvement is that the splicing locking mechanism includes a semicircular threaded column fixed to the outer walls of the front and rear sides of the concave frame and a threaded ring threadedly sleeved on the semicircular threaded column, and the threaded ring is threadedly sleeved on two opposite groups of semicircular threaded columns on the left and right.

[0008] A further improvement is that two groups of the concave frames are symmetrically fixed and provided with positioning posts and positioning holes at opposite ends, and the positioning posts and positioning holes are adapted to each other.

[0009] A further improvement is that: a T-shaped slide bar is symmetrically fixed to the bottom end of the support plate, a T-shaped slide rail matching the T-shaped slide bar is symmetrically opened at the top end of the concave frame, and the T-shaped slide bar is slidably arranged in the T-shaped slide rail.

[0010] A further improvement is that a hanging plate is fixed to the bottom end of the test rod at the bottom end of the digital display tensile gauge, a hook is symmetrically fixed to the bottom end of the hanging plate, and a ring adapted to the hook is symmetrically fixed to the top end of the concave plate, and the ring is hung on the hook.

[0011] A further improvement is that the clamping adjustment mechanism includes a one-way screw threaded through the concave plate and a knob fixed to the end of the one-way screw away from the clamp plate, the end of the one-way screw away from the knob is rotatably connected to the clamp plate, and a limit rod is symmetrically fixed on one side of the clamp plate close to the one-way screw and slides through the side wall of the concave plate.

[0012] A further improvement is that: the outer walls on both sides of the concave plate are fixed with limiting protrusions, and the inner walls on both sides of the concave frame are provided with limiting sliding grooves adapted to the limiting protrusions, and the limiting protrusion extends from one side away from the concave plate into the limiting sliding groove.

[0013] A further improvement is that the support height adjustment mechanism includes a threaded support column fixed to the bottom end of the support block and a threaded tube threadedly sleeved on the outside of the threaded support column, and a support foot is fixed to the bottom end of the threaded tube.

[0014] The beneficial effects of the present invention are as follows: the present invention displays the horizontality of the device by arranging a level ruler on the front of the concave frame, and adjusts the support height of the concave frame by a support height adjustment mechanism at the bottom end of the support block, so that the concave frame can maintain balance during the process of pulling out the plant roots, thereby ensuring the measurement accuracy to a certain extent, and drives the two sets of clamps to move toward each other by a clamping adjustment mechanism, and uses the serrated anti-slip strips on the opposite sides of the two sets of clamps to firmly clamp and fix the plants to be measured, so that the plants are not prone to slip when pulled out, thereby ensuring the normal progress of the measurement work, and in addition, the pulling force for pulling out the plant roots is measured by a digital display tensile gauge, and displayed by a tension display screen on the front of the concave frame, so that the measurement results of the plant root pull-out force can be displayed intuitively, which is convenient for the measurement personnel to observe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view of the present invention;

[0016] Figure 2 is a front cross-sectional view of the present invention;

[0017] Figure 3 is a top view of the present invention;

[0018] Figure 4 is a top cross-sectional view of the present invention;

[0019] Figure 5 The present invention Figure 4 A magnified image

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the support plate of the present invention.

[0021] Among them: 1. concave frame; 2. support plate; 3. cylinder; 4. lifting plate; 5. digital display dynamometer; 6. concave plate; 7. splint; 8. serrated anti-skid strip; 9. tension display screen; 10. support block; 11. level; 12. semicircular threaded column; 13. threaded ring; 14. positioning column; 15. positioning hole; 16. T-shaped slide bar; 17. T-shaped slide rail; 18. hanging plate; 19. hook; 20. lifting ring; 21. one-way screw; 22. knob; 23. limit rod; 24. limit bump; 25. limit slide groove; 26. threaded support column; 27. threaded pipe; 28. support foot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The present embodiment provides a device for measuring the pulling-out force of plant roots, including two groups of concave frames 1 with a concave design, the two groups of concave frames 1 are adapted to each other and fixed together by a splicing locking mechanism to form a complete square frame, each group of concave frames 1 is slidably connected to a group of support plates 2 at the top, a cylinder 3 is fixed to the support plate 2 by bolts, the output end at the bottom end of the cylinder 3 is located on the inner side of the concave frame 1 and is fixed to a lifting plate 4 by bolts, a digital display tensile gauge 5 for measuring tension is fixed to the bottom end of the lifting plate 4 by bolts, and a test rod at the bottom end of the digital display tensile gauge 5 is suspended with A concave plate 6 is designed in a concave shape, and the concave plate 6 is slidably connected to the inner side of the concave frame 1 and can be lifted and lowered. A clamping plate 7 is provided on the inner side of the concave plate 6, and the clamping plate 7 is driven by a clamping adjustment mechanism and moves horizontally to the left and right. A serrated anti-slip strip 8 is fixed on the opposite side of the two groups of clamping plates 7. The side of the serrated anti-slip strip 8 away from the clamping plate 7 is designed in a serrated protrusion. The two groups of clamping plates 7 are driven to move toward each other by the clamping adjustment mechanism, and the serrated anti-slip strip 8 on the opposite side of the two groups of clamping plates 7 is used to firmly clamp and fix the plant to be tested, so that the plant is not easy to slip when being pulled out;

[0024] A tension display screen 9 is fixed on the front of the concave frame 1, and a digital tension gauge 5 is connected to the PLC control system of the device to display the measured tension value on the tension display screen 9. The tension for pulling out the plant root is measured by the digital tension gauge 5 and displayed on the tension display screen 9 on the front of the concave frame 1, so that the measurement result of the pulling-out force of the plant root can be displayed intuitively;

[0025] Support blocks 10 symmetrically distributed front to back are welded and fixed to the inner walls of the opposite sides of the two groups of concave frames 1. A retractable support height adjustment mechanism is fixed to the bottom of the support block 10. A level ruler 11 for displaying the horizontality of the concave frame 1 is fixed to the front of the concave frame 1. The level ruler 11 is arranged on the front of the concave frame 1 to display the horizontality of the device, and the support height of the concave frame 1 is adjusted by the support height adjustment mechanism at the bottom of the support block 10, so that the concave frame 1 can maintain balance during the process of pulling out the plant roots.

[0026] The splicing locking mechanism includes a semicircular threaded column 12 and a threaded ring 13, wherein the semicircular threaded column 12 is provided with four groups and is respectively welded and fixed on the outer walls of the front and rear sides of the two groups of concave frames 1. When the two groups of concave frames 1 are butted against each other, the two adjacent groups of semicircular threaded columns 12 on the left and right are also butted against each other to form a complete threaded column together. The threaded ring 13 is threadedly sleeved on the complete threaded column formed by the two adjacent groups of semicircular threaded columns 12 on the left and right. The threaded ring 13 is threadedly sleeved on the two opposite groups of semicircular threaded columns 12 on the left and right. The two adjacent groups of semicircular threaded columns 12 on the left and right are locked together by the threaded ring 13, thereby realizing the locking and fixation of the two groups of concave frames 1.

[0027] The right end of the concave frame 1 on the left side is symmetrically fixed with a positioning column 14, and the left end of the concave frame 1 on the right side is symmetrically provided with a positioning hole 15, and the positioning column 14 is adapted to the positioning hole 15. When the two groups of concave frames 1 are spliced, the positioning column 14 is inserted into the positioning hole 15 to avoid misalignment of the two groups of concave frames 1.

[0028] Two groups of T-shaped slide bars 16 symmetrically distributed front to back are welded and fixed to the bottom end of the support plate 2. T-shaped slide rails 17 are provided on both the front and back sides of the top of the concave frame 1, and the T-shaped slide rails 17 are adapted to the T-shaped slide bars 16. The T-shaped slide bars 16 are slidably arranged in the T-shaped slide rails 17. The sliding connection of the support plate 2 at the top of the concave frame 1 is realized through the cooperation of the T-shaped slide rails 17 and the T-shaped slide bars 16.

[0029] The bottom end of the test rod at the bottom end of the digital display tensile gauge 5 is fixed with a hanging plate 18 by bolts, and the bottom end of the hanging plate 18 is welded with hooks 19 symmetrically distributed front and back. The top end of the concave plate 6 is symmetrically fixed with a hanging ring 20 corresponding to and adapted to the position of the hook 19. When actually performing measurement work, the hanging ring 20 is hung on the hook 19.

[0030] The clamping adjustment mechanism includes a one-way screw 21 and a knob 22, wherein the one-way screw 21 is threaded through the concave plate 6, and the knob 22 is fixed to the end of the one-way screw 21 away from the clamp plate 7 by a screw, and the end of the one-way screw 21 away from the knob 22 is rotatably connected to the clamp plate 7 through a bearing, and the one-way screw 21 is driven to rotate and displace by rotating the knob 22, and the clamp plate 7 is driven to displace during the rotation and displacement of the one-way screw 21. A limiting rod 23 is symmetrically fixed on one side of the clamp plate 7 close to the one-way screw 21, and the limiting rod 23 slides through the side wall of the concave plate 6, and the clamp plate 7 is limited by the limiting rod 23, so that the clamp plate 7 is more stable during the movement.

[0031] Limiting protrusions 24 are welded and fixed on the outer walls on both the front and rear sides of the concave plate 6, and limiting sliding grooves 25 are provided on the inner walls on both the front and rear sides of the concave frame 1, and the limiting sliding grooves 25 are adapted to the limiting protrusions 24, and the limiting protrusions 24 extend into the limiting sliding grooves 25 away from the side of the concave plate 6, and the sliding connection of the concave plate 6 in the concave frame 1 is realized through the cooperation of the limiting protrusions 24 and the limiting sliding grooves 25.

[0032] The support height adjustment mechanism includes a threaded support column 26 and a threaded tube 27, wherein the threaded support column 26 is welded and fixed to the bottom end of the support block 10, the threaded tube 27 is threadedly sleeved on the outside of the threaded support column 26, and a support foot 28 is fixed to the bottom end of the threaded tube 27. The threaded tube 27 is rotated to make it rise and fall on the threaded support column 26, thereby realizing the adjustment of the support height of the concave frame 1.

[0033] When it is necessary to measure the pull-out force of the plant root system, first place the two groups of concave frames 1 on the left and right sides of the plant to be measured, respectively, then dock the two groups of concave frames 1 together and fix the two groups of concave frames 1 using a splicing locking mechanism. At this time, the plant to be measured is located between the two groups of concave plates 6, and then the clamping adjustment mechanism is used to drive the two groups of clamping plates 7 to move toward each other until the plant body to be measured is clamped and fixed by the two groups of clamping plates 7. During the clamping process, the serrated anti-slip strips 8 play an anti-slip role. Then, the level ruler 11 on the front of the concave frame 1 is used to observe whether the concave frame 1 is in a horizontal state at this time. If the level ruler 11 is not in a horizontal state, the support height adjustment mechanism at the bottom of the support block 10 is used to adjust the support height of the concave frame 1 until the level ruler 11 shows horizontal, indicating that the device is in a horizontal state at this time, and then the two groups of support plates 2 are placed at the top of the concave frame 1. The sliding displacement is carried out until the hook 19 is inserted into the lifting ring 20, so that the concave plate 6 is on the test rod at the bottom end of the digital display dynamometer 5, and then the cylinder 3 on the support plate 2 is started to drive the lifting plate 4 to drive the digital display dynamometer 5 to rise. During the rising process of the digital display dynamometer 5, the concave plate 6 is driven to rise. During the rising process of the concave plate 6, the plant to be tested clamped between the two sets of clamps 7 is driven to keep being pulled vertically upward. During the pulling process, the digital display dynamometer 5 continuously measures the tension. At the moment when the root of the plant to be tested is pulled out of the soil (the dead weight of the device is sufficient to ensure that the root of the plant remains stable when pulled out), the tension value displayed on the digital display dynamometer 5 is the maximum value in the measurement process, that is, the root pull-out force of the plant, and is intuitively displayed through the tension display screen 9 on the front of the concave frame 1. The measurement personnel read it to complete the measurement of the root pull-out force of the plant.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for measuring the pull-out force of plant roots, comprising a concave frame (1), characterized in that: The concave frame (1) is provided with two groups and is spliced ​​and fixed by a splicing locking mechanism. The tops of the two groups of concave frames (1) are slidably provided with a support plate (2). A cylinder (3) is fixed on the support plate (2). A lifting plate (4) is fixed on the bottom of the cylinder (3). A digital display tensile gauge (5) is fixed on the bottom of the lifting plate (4). A test rod at the bottom of the digital display tensile gauge (5) is suspended with a concave plate (6) slidably connected to the inner side of the concave frame (1). The concave plate (6) is provided with a support plate (2). A clamping plate (7) driven to move by a clamping adjustment mechanism is provided on the side, a serrated anti-slip strip (8) is fixed on the opposite side of the two groups of clamping plates (7), a tension display screen (9) electrically connected to a digital tension gauge (5) is fixed on the front of the concave frame (1), support blocks (10) are symmetrically fixed on the inner walls of the opposite sides of the two groups of concave frames (1), a support height adjustment mechanism is fixed at the bottom end of the support block (10), and a level ruler (11) is fixed on the front of the concave frame (1).

2. A device for measuring the pull-out force of plant roots according to claim 1, characterized in that: The splicing locking mechanism comprises a semicircular threaded column (12) fixed to the outer walls of the front and rear sides of the concave frame (1) and a threaded ring (13) threadedly sleeved on the semicircular threaded column (12), wherein the threaded ring (13) is threadedly sleeved on two opposite groups of the semicircular threaded columns (12) on the left and right.

3. The device for measuring the pull-out force of plant roots according to claim 1, characterized in that: The two groups of concave frames (1) are symmetrically fixed and provided with positioning posts (14) and positioning holes (15) at opposite ends, and the positioning posts (14) and positioning holes (15) are adapted to each other.

4. The device for measuring the pull-out force of plant roots according to claim 1, characterized in that: A T-shaped slide bar (16) is symmetrically fixed to the bottom end of the support plate (2), and a T-shaped slide rail (17) adapted to the T-shaped slide bar (16) is symmetrically opened at the top end of the concave frame (1), and the T-shaped slide bar (16) is slidably arranged in the T-shaped slide rail (17).

5. The device for measuring the pull-out force of plant roots according to claim 1, characterized in that: A hanging plate (18) is fixed to the bottom end of the test rod at the bottom end of the digital display tensile gauge (5), a hanging hook (19) is symmetrically fixed to the bottom end of the hanging plate (18), and a hanging ring (20) adapted to the hanging hook (19) is symmetrically fixed to the top end of the concave plate (6), and the hanging ring (20) is hung on the hanging hook (19).

6. The device for measuring the pull-out force of plant roots according to claim 1, characterized in that: The clamping adjustment mechanism comprises a one-way screw (21) threadedly penetrating the concave plate (6) and a knob (22) fixed to the end of the one-way screw (21) away from the clamping plate (7); the end of the one-way screw (21) away from the knob (22) is rotatably connected to the clamping plate (7); and a limiting rod (23) slidably penetrating the side wall of the concave plate (6) is symmetrically fixed on one side of the clamping plate (7) close to the one-way screw (21).

7. The device for measuring the pull-out force of plant roots according to claim 1, characterized in that: The front and rear outer walls of the concave plate (6) are both fixed with limiting protrusions (24), and the front and rear inner walls of the concave frame (1) are both provided with limiting sliding grooves (25) adapted to the limiting protrusions (24), and the limiting protrusions (24) extend from one side of the concave plate (6) to the inside of the limiting sliding grooves (25).

8. The device for measuring the pull-out force of plant roots according to claim 1, characterized in that: The support height adjustment mechanism comprises a threaded support column (26) fixed to the bottom end of the support block (10) and a threaded tube (27) threadedly sleeved on the outside of the threaded support column (26), and a support foot (28) is fixed to the bottom end of the threaded tube (27).

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