Experimental device for measuring tensile resistance of plant root system in low-temperature environment

Abstract

The utility model relates to the technical field of plant root system tensile resistance testing, in particular to an experimental device for measuring the tensile resistance of a plant root system in a low-temperature environment, which comprises a freezing and thawing box, a cover plate, a clamping mechanism and a testing component, the cover plate is arranged on the freezing and thawing box, and the testing component is arranged on the freezing and thawing box; the clamping mechanism comprises a first air cylinder, a round block, a plurality of connecting blocks, a plurality of sliding blocks, a plurality of right-angle rods, a plurality of sliding pieces, a connecting plate, a plurality of upper end fixing pieces and a plurality of lower end fixing pieces, the connecting plate is connected with the testing assembly and provided with a plurality of guide grooves, a partition plate is arranged in the freezing and thawing box and provided with a plurality of sliding grooves, and the first air cylinder is installed in the freezing and thawing box; the output end of the first air cylinder is fixedly connected with the round block, the other ends of the multiple connecting blocks are hinged to the round block, the other ends of the multiple connecting blocks are hinged to the corresponding sliding blocks respectively, in this way, the two ends of the plant root system can be clamped and fixed more conveniently, and the clamping efficiency and the experiment efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plant root tension resistance testing, in particular to an experimental device for measuring the plant root tension resistance in a low temperature environment. Background Art

[0002] The plant root system is an important component of the plant body. It plays a vital role in the growth, development and survival of the plant. In the research of plant ecological protection and soil conservation, the tensile strength of the plant root system is a key parameter. When measuring the tensile strength of the plant root system, the plant root system needs to be clamped.

[0003] For example, a new type of flexible clamp suitable for root tensile strength measurement disclosed in the prior art patent publication number CN208366715U can be used. One end of the plant root to be tested is placed in the clamp, the clamping bolt is rotated, the spring is compressed, and pressure is applied to the cylindrical shell so that the elastic clamping part on the inner wall is forced to gather and clamp the root.

[0004] However, when used in the above method, it is necessary to manually rotate the clamping bolts to clamp the two ends of the plant roots separately, resulting in low clamping efficiency and affecting the experimental efficiency. At the same time, since the tensile strength of plant roots in cold regions deviates from that at normal temperature, the existing method is not convenient for simulating the tensile strength measurement of plant roots in cold regions. Utility Model Content

[0005] The purpose of the utility model is to provide an experimental device for measuring the tensile strength of plant roots in a low temperature environment, aiming to solve the problem that in the prior art, the two ends of the plant roots need to be clamped separately by manually rotating the clamping bolts, resulting in low clamping efficiency and affecting the experimental efficiency. At the same time, since the tensile strength of plant roots in cold areas deviates from that at normal temperature, the existing method is not convenient for simulating the technical problem of measuring the tensile strength of plant roots in cold areas.

[0006] To achieve the above-mentioned purpose, the utility model adopts an experimental device for determining the tensile strength of plant roots in a low-temperature environment, comprising a freeze-thaw box, a cover plate, a clamping mechanism and a test assembly, wherein the cover plate is arranged on the freeze-thaw box, and the test assembly is arranged on the freeze-thaw box; the clamping mechanism comprises a first cylinder, a round block, a plurality of connecting blocks, a plurality of sliding blocks, a plurality of right-angle rods, a plurality of sliding members, a connecting plate, a plurality of upper end fixing members and a plurality of lower end fixing members, the connecting plate is connected to the test assembly, the connecting plate has a plurality of guide grooves, a partition is arranged in the freeze-thaw box, the partition has a plurality of slide grooves, a plurality of the sliding blocks are respectively slidably connected with the corresponding slide grooves, the first cylinder is arranged Installed in the freeze-thaw box, the output end of the first cylinder is fixedly connected to the round block, the other ends of multiple connecting blocks are hinged to the round block, the other ends of multiple connecting blocks are respectively hinged to the corresponding sliders, multiple right-angle rods are respectively fixedly connected to the corresponding sliders, the right-angle rods have adaptation grooves, one end of the sliding member is slidably connected to the corresponding adaptation groove, and the other end of the sliding member is slidably connected to the corresponding guide groove, multiple upper end fixing members are respectively fixedly connected to the corresponding sliding members, and multiple lower end fixing members are respectively fixedly connected to the corresponding right-angle rods. A display screen connected to the test assembly is installed on the freeze-thaw box.

[0007] Wherein, the test assembly includes a second cylinder, a tension sensor and a connecting rod, the second cylinder is installed on the freeze-thaw box, the output end of the second cylinder is fixedly connected to the tension sensor, and the connecting rod is arranged between the tension sensor and the connecting plate.

[0008] Wherein, the sliding member includes a sliding rod and a supporting block, the sliding rod is slidably connected to the corresponding sliding groove, the supporting block is slidably connected to the corresponding guiding groove, and the sliding rod is fixedly connected to the supporting block.

[0009] Among them, the experimental device for measuring the tensile strength of plant roots in a low-temperature environment also includes a mounting component, and the mounting component is arranged on the freeze-thaw chamber.

[0010] Among them, the mounting assembly includes a mounting plate, a protrusion and a bolt, the mounting plate is fixedly connected to the freeze-thaw box, the mounting plate has a mounting groove, the protrusion is fixedly connected to the display screen, the protrusion is slidably connected to the mounting groove, one end of the bolt is inserted into the mounting groove and tightened on the protrusion.

[0011] The experimental device for measuring the tensile strength of plant roots in a low temperature environment further comprises an observation window, the cover plate has a groove, and the observation window is placed in the groove.

[0012] The utility model discloses an experimental device for measuring the tensile strength of plant roots in a low temperature environment. By setting the clamping mechanism, when in use, the cover plate is opened, the lower end of the plant root to be measured is placed between a plurality of the lower end fixing members, the upper end of the plant root to be measured is placed between a plurality of the upper end fixing members, the first cylinder is started, the output end of the first cylinder drives the round block to move downward, the round block drives one end of a plurality of the connecting blocks to rotate on the round block, drives the other ends of the plurality of the connecting blocks to rotate on the corresponding sliding blocks respectively, and drives the plurality of the sliding blocks to slide in the corresponding sliding grooves respectively while the plurality of the connecting blocks rotate. , a plurality of the sliders drive a plurality of the lower end fixing members to clamp and fix the lower end of the plant root system, and a plurality of the sliders drive a plurality of the sliding members to move, and a plurality of the sliding members drive a plurality of the upper end fixing members to clamp and fix the upper end of the plant root system, and then the cover plate is closed, and the freeze-thaw box is set to a specified temperature. After reaching the specified temperature, the test assembly is started to drive the connecting plate to move up, so that the connecting plate drives the plurality of the upper end fixing members to move through the plurality of the sliding members, so as to measure the pulling of the plant root system. In this way, the two ends of the plant root system can be clamped and fixed more conveniently, thereby improving the clamping efficiency and the experimental efficiency;

[0013] The freeze-thaw chamber can simulate the tensile strength test of plant roots in cold regions, so that the staff can study the shear resistance of the root-soil complex in cold regions.

[0014] At the same time, in the above method, the tensile force data measured is calculated by the following formula:

[0015] F 拉 =F 示 -F f ;

[0016] Among them, F 拉 is the tensile strength of the root system, F 示 To display the results on the display, F f is the friction between the slide bar and the adapter groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0019] Figure 2 It is a schematic structural diagram of the first embodiment of the utility model without a cover plate.

[0020] Figure 3 It is a partial structural schematic diagram of the first embodiment of the utility model.

[0021] Figure 4 It is a partial structural schematic diagram of the first embodiment of the utility model.

[0022] Figure 5 The utility model Figure 4 AA line structural section view.

[0023] Figure 6 It is a structural schematic diagram of the second embodiment of the utility model.

[0024] 101-freeze-thaw box, 102-cover plate, 103-first cylinder, 104-round block, 105-connecting block, 106-slider, 107-right-angle rod, 108-connecting plate, 109-upper end fixing piece, 110-lower end fixing piece, 111-second cylinder, 112-tension sensor, 113-connecting rod, 114-sliding rod, 115-support block, 116-slide groove, 117-adapting groove, 118-guide groove, 119-partition, 120-display screen, 201-observation window, 202-mounting plate, 203-bump, 204-bolt, 205-groove, 206-mounting groove. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0026] The first embodiment of the present application is:

[0027] See also Figure 1 to Figure 5 ,in Figure 1 It is a structural schematic diagram of the first embodiment of the utility model. Figure 2 This is a schematic diagram of the structure of the first embodiment of the utility model without a cover plate. Figure 3 It is a partial structural schematic diagram of the first embodiment of the utility model. Figure 4 It is a partial structural schematic diagram of the first embodiment of the utility model. Figure 5 The utility model Figure 4 AA line structural section view.

[0028] The utility model provides an experimental device for measuring the tensile strength of plant roots in a low-temperature environment, comprising a freeze-thaw box 101, a cover plate 102, a clamping mechanism and a test assembly, wherein the clamping mechanism comprises a first cylinder 103, a round block 104, a plurality of connecting blocks 105, a plurality of sliding blocks 106, a plurality of right-angle rods 107, a plurality of sliding members, a connecting plate 108, a plurality of upper end fixing members 109 and a plurality of lower end fixing members 110, the test assembly comprises a second cylinder 111, a tension sensor 112 and a connecting rod 113, the sliding member comprises a sliding rod 114 and a supporting block 115, and the above-mentioned scheme solves the technical problem in the prior art that the two ends of the plant root system need to be clamped separately by manually rotating the clamping bolt 204, resulting in low clamping efficiency and affecting the experimental efficiency.

[0029] According to this specific embodiment, the cover plate 102 is disposed on the freeze-thaw box 101. When in use, the cover plate 102 can achieve a sealing effect and will not affect the temperature in the freeze-thaw box 101 due to the environment.

[0030] Among them, the connecting plate 108 is connected to the test assembly, and the connecting plate 108 has a plurality of guide grooves 118. A partition 119 is provided in the freeze-thaw box 101, and the partition 119 has a plurality of slide grooves 116. A plurality of sliders 106 are respectively slidably connected to the corresponding slide grooves 116. The first cylinder 103 is installed in the freeze-thaw box 101, and the output end of the first cylinder 103 is fixedly connected to the round block 104. The other ends of the plurality of connecting blocks 105 are hinged to the round block 104, and the other ends of the plurality of connecting blocks 105 are respectively hinged to the corresponding sliders 106. The plurality of right-angle rods 107 are respectively connected to the corresponding right-angle rods 107. The right-angle rod 107 has an adapting groove 117, one end of the sliding member is slidably connected to the corresponding adapting groove 117, and the other end of the sliding member is slidably connected to the corresponding guide groove 118, a plurality of upper end fixing members 109 are respectively fixedly connected to the corresponding sliding members, a plurality of lower end fixing members 110 are respectively fixedly connected to the corresponding right-angle rod 107, a display screen 120 connected to the test assembly is installed on the freeze-thaw box 101, and by setting the clamping mechanism, when in specific use, the cover plate 102 is opened, and the lower end of the plant root system to be measured is placed on a plurality of The upper end of the plant root to be measured is placed between the plurality of the upper end fixing members 109, and the first cylinder 103 is started. The output end of the first cylinder 103 drives the round block 104 to move downward, and the round block 104 drives one end of the plurality of the connecting blocks 105 to rotate on the round block 104, and drives the other ends of the plurality of the connecting blocks 105 to rotate on the corresponding sliders 106 respectively. When the plurality of the connecting blocks 105 rotate, they drive the plurality of the sliders 106 to slide in the corresponding slide grooves 116 respectively, and the plurality of the sliders 106 drive the plurality of the lower end fixing members 110 to move the plant root. The lower end of the plant root is clamped and fixed, and the multiple sliders 106 drive the multiple sliding parts to move, and the multiple sliding parts drive the multiple upper end fixing parts 109 to clamp and fix the upper end of the plant root system, then the cover plate 102 is closed, and the freeze-thaw box 101 is set to a specified temperature. After reaching the specified temperature, the test component is started to drive the connecting plate 108 to move upward, so that the connecting plate 108 drives the multiple upper end fixing parts 109 to move through the multiple sliding parts, so as to measure the pulling of the plant root system. In this way, the two ends of the plant root system can be clamped and fixed more conveniently, thereby improving the clamping efficiency and the experimental efficiency.

[0031] Secondly, the second cylinder 111 is installed on the freeze-thaw box 101, and the output end of the second cylinder 111 is fixedly connected to the tension sensor 112, and the connecting rod 113 is arranged between the tension sensor 112 and the connecting plate 108. After the plant roots are clamped and the temperature of the freeze-thaw box 101 reaches the set value, the second cylinder 111 is started, and the output end of the second cylinder 111 drives the tension sensor 112 to move, and the tension sensor 112 drives the connecting plate 108 to move. The connecting plate 108 can drive the multiple sliding parts to move and then drive the multiple upper end fixing parts 109 to move. The multiple upper end fixing parts 109 pull the plant roots, and the tension sensor 112 displays the data on the display screen 120 in real time through the electrical connection line.

[0032] At the same time, the sliding rod 114 is slidably connected to the corresponding sliding groove 116, the support block 115 is slidably connected to the corresponding guide groove 118, the sliding rod 114 is fixedly connected to the support block 115, and when the right-angle rod 107 moves, it drives the sliding rod 114 to move, and the sliding rod 114 drives the support block 115 to move.

[0033] An experimental device for measuring the tensile strength of plant roots in a low temperature environment using the present embodiment is provided with the clamping mechanism. When in use, the cover plate 102 is opened, the lower end of the plant root to be measured is placed between the plurality of lower end fixing members 110, the upper end of the plant root to be measured is placed between the plurality of upper end fixing members 109, the first cylinder 103 is started, the output end of the first cylinder 103 drives the round block 104 to move downward, the round block 104 drives one end of the plurality of connecting blocks 105 to rotate on the round block 104, drives the other ends of the plurality of connecting blocks 105 to rotate on the corresponding sliders 106 respectively, and the rotation of the plurality of connecting blocks 105 drives the plurality of sliders 106 to move on the corresponding sliders 106 respectively. Slide in the slide groove 116, and the multiple sliders 106 drive the multiple lower end fixing members 110 to clamp and fix the lower end of the plant root system, and the multiple sliders 106 drive the multiple sliding members to move, and the multiple sliding members drive the multiple upper end fixing members 109 to clamp and fix the upper end of the plant root system, and then close the cover plate 102, set the freeze-thaw box 101 to a specified temperature, and after reaching the specified temperature, start the test component to drive the connecting plate 108 to move upward, so that the connecting plate 108 drives the multiple upper end fixing members 109 to move through the multiple sliding members, so as to measure the pulling of the plant root system. In this way, the two ends of the plant root system can be clamped and fixed more conveniently, thereby improving the clamping efficiency and the experimental efficiency;

[0034] By setting the freeze-thaw chamber 101, it is possible to simulate the tensile strength test of plant roots in a cold region environment, so that the staff can study the shear resistance of the root-soil complex in cold regions.

[0035] At the same time, in the above method, the tensile force data measured is calculated by the following formula:

[0036] F 拉 =F 示 -F f ;

[0037] Among them, F 拉 is the tensile strength of the root system, F 示 To display the results on the display, F f is the friction between the slide bar and the adapter groove.

[0038] The second embodiment of the present application is:

[0039] Based on the first embodiment, please refer to Figure 6 , Figure 6 It is a structural schematic diagram of the second embodiment of the utility model.

[0040] The utility model provides an experimental device for measuring the tensile strength of plant roots in a low temperature environment, which also includes a mounting assembly and an observation window 201 . The mounting assembly includes a mounting plate 202 , a convex block 203 and a bolt 204 .

[0041] According to this specific embodiment, the installation component is disposed on the freeze-thaw box 101 . When the freeze-thaw box 101 is used, the installation component facilitates installation and removal of the display screen 120 .

[0042] Among them, the mounting plate 202 is fixedly linked to the freeze-thaw box 101, the mounting plate 202 has a mounting groove 206, the protrusion 203 is fixedly connected to the display screen 120, the protrusion 203 is slidably connected to the mounting groove 206, one end of the bolt 204 is inserted into the mounting groove 206 and tightened on the protrusion 203. When installing the display screen 120, first align the protrusion 203 with the mounting groove 206 and push it to the specified position, insert one end of the bolt 204 into the mounting groove 206, and tighten it on the protrusion 203 to install the display screen 120, otherwise it is easy to disassemble.

[0043] Secondly, the cover plate 102 has a groove 205, and the observation window 201 is placed in the groove 205. The observation window 201 is convenient for observing the situation inside the freeze-thaw box 101.

[0044] Using an experimental device for measuring the tensile strength of plant roots in a low-temperature environment according to the present embodiment, when installing the display screen 120, first align the protrusion 203 with the installation groove 206 and push it to a specified position, insert one end of the bolt 204 into the installation groove 206, and tighten it on the protrusion 203 to install the display screen 120, otherwise it is easy to disassemble.

[0045] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. An experimental device for measuring the tensile strength of plant roots in a low temperature environment, comprising a freeze-thaw box and a cover plate, wherein the cover plate is arranged on the freeze-thaw box, and is characterized in that: It also includes a clamping mechanism and a test assembly, wherein the test assembly is arranged on the freeze-thaw chamber; The clamping mechanism includes a first cylinder, a round block, a plurality of connecting blocks, a plurality of sliders, a plurality of right-angle rods, a plurality of sliding members, a connecting plate, a plurality of upper end fixing members and a plurality of lower end fixing members. The connecting plate is connected to the test assembly, and the connecting plate has a plurality of guide grooves. A partition is provided in the freeze-thaw box, and the partition has a plurality of slide grooves. A plurality of the sliding members are respectively slidably connected to the corresponding slide grooves. The first cylinder is installed in the freeze-thaw box. The output end of the first cylinder is fixedly connected to the round block. The other ends of the plurality of connecting blocks are hinged to the round block. The other ends of the plurality of connecting blocks are respectively hinged to the corresponding sliders. A plurality of the right-angle rods are respectively fixedly connected to the corresponding sliders. The right-angle rods have an adapting groove. One end of the sliding member is slidably connected to the corresponding adapting groove, and the other end of the sliding member is slidably connected to the corresponding guide groove. A plurality of the upper end fixing members are respectively fixedly connected to the corresponding sliding members, and a plurality of the lower end fixing members are respectively fixedly connected to the corresponding right-angle rods. A display screen connected to the test assembly is installed on the freeze-thaw box.

2. The experimental device for measuring the tensile strength of plant roots in a low temperature environment as claimed in claim 1, characterized in that: The test assembly includes a second cylinder, a tension sensor and a connecting rod. The second cylinder is installed on the freeze-thaw box. The output end of the second cylinder is fixedly connected to the tension sensor. The connecting rod is arranged between the tension sensor and the connecting plate.

3. The experimental device for measuring the tensile strength of plant roots in a low temperature environment as claimed in claim 2, characterized in that: The sliding member comprises a sliding rod and a supporting block, the sliding rod is slidably connected to the corresponding sliding groove, the supporting block is slidably connected to the corresponding guiding groove, and the sliding rod is fixedly connected to the supporting block.

4. The experimental device for measuring the tensile strength of plant roots in a low temperature environment as claimed in claim 3, characterized in that: The experimental device for measuring the tensile strength of plant roots in a low-temperature environment also includes a mounting component, which is arranged on the freeze-thaw chamber.

5. The experimental device for measuring the tensile strength of plant roots in a low temperature environment as claimed in claim 4, characterized in that: The mounting assembly includes a mounting plate, a protrusion and a bolt. The mounting plate is fixedly connected to the freeze-thaw box, the mounting plate has a mounting groove, the protrusion is fixedly connected to the display screen, the protrusion is slidably connected to the mounting groove, and one end of the bolt is inserted into the mounting groove and tightened on the protrusion.

6. The experimental device for measuring the tensile strength of plant roots in a low temperature environment as claimed in claim 5, characterized in that: The experimental device for measuring the tensile strength of plant roots in a low temperature environment also includes an observation window, the cover plate has a groove, and the observation window is placed in the groove.

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