A new grass-pulling stress meter

Abstract

The application relates to the field of civil engineering measuring devices, and discloses a novel grass pulling stress meter which comprises a workbench, a scale pointer, a protective shell arranged at the top end of the workbench, a vertical rack penetrating through the inside of the protective shell, the top end of the vertical rack being fixedly connected with the scale pointer, one side of the top end of the protective shell being connected with a scale, a pulling clamp structure, a tension meter connected with the bottom end of the vertical rack, the end of the tension meter away from the vertical rack being connected with the pulling clamp structure, a first supporting leg, the periphery of the end of the workbench away from the protective shell being provided with the first supporting leg, an adjusting structure, the surfaces of the second supporting leg and the first supporting leg being provided with the adjusting structure, and a stabilizing structure, the ends of the second supporting leg and the first supporting leg away from the workbench being provided with the stabilizing structure. The novel grass pulling stress meter has the beneficial effect of improving the shortcomings of the traditional clamping structure to achieve an unexpected effect, and increases the friction between the clamping plate and the branch under the condition of ensuring the clamping quantity.

Description

Technical Field

[0001] This invention relates to the field of civil engineering surveying devices, and more specifically to a novel weeding stress meter. Background Technology

[0002] A pull-out tester is a testing instrument used to measure the relationship between stress and displacement, thereby determining the stability of a structure.

[0003] In civil engineering, geogrids, reinforcing materials, and protective vegetation are commonly used to strengthen soil stability and reduce soil erosion. When the soil begins to destabilize, the bond between the soil and the reinforcing material weakens, making the material easier to pull out. Measuring the ease with which the material can be pulled out reflects the stability of the composite soil.

[0004] Protective vegetation is primarily used as a method for ecological protection and control of soil slope disasters and roadbed damage. Shrubs and grasses are the main vegetation for ecological protection of road slopes. Their strong root systems can stabilize the topsoil, preventing landslides, and their transpiration ensures a relatively balanced water content within the slope. In-situ pull-out test data of vegetation are essential parameters in ecological protection design. The contribution of vegetation structure to slope stability is evaluated based on in-situ plant pull-out test values, which can also serve as a reference indicator for evaluating the erosion resistance of plant-based slope protection. Geogrids, like plants, are materials embedded in the soil to enhance its strength; their pull-out resistance directly reflects the stability of the composite soil structure. The more difficult it is for the geogrid to be pulled out under force, the stronger the overall soil stability. Similarly, it can be used for pull-out tests of micropiles.

[0005] First, existing instruments are prone to breaking plants and geogrids, which are used as reinforcement materials, and cannot provide sufficient pull-out stress. This is because existing instruments cannot hold enough branches, and the contact area between the clamps and the plants is insufficient. The exposed parts of the plants are scattered branches, while the roots that need to be pulled out are tangled together and have tension with the soil. If only a portion of the branches are gripped, the tension is insufficient, and the branches will break during the pulling process. Furthermore, the fixing force of existing instruments is not adjustable. If the fixing force is too loose, the plant will fall off; if the fixing force is too tight, the plant will break.

[0006] Secondly, existing instruments are generally large in size, making them inconvenient to take to field engineering sites for experiments. Furthermore, the use of motors requires electricity for operation, placing strict requirements on power supply and wire length, conditions that may not be available on construction sites. Additionally, current in-situ pull-out tests still rely on measuring tapes and spring balances, making it difficult to measure accurate pull-out force and displacement data, resulting in low measurement efficiency and accuracy. Moreover, existing instruments cannot be adjusted at multiple angles, cannot measure stress and strain in the vertical direction or other arbitrary directions, and cannot change the instrument's height.

[0007] Therefore, it is necessary to design a tensile stress measuring instrument that can provide sufficient stability and strong fixing effect, is easy to disassemble and reuse, is not easy to break plants and reinforcing materials, is portable, does not consume electricity, and is easy to operate. Summary of the Invention

[0008] The purpose of this invention is to provide a novel weed pulling stress meter to solve the problems mentioned in the background art. It does not damage geogrids and reinforcing materials such as plants during the pulling process. It is lightweight, portable, does not rely on electricity, and provides accurate stress and strain monitoring.

[0009] The technical solution of the present invention is: a novel weeding stress meter, including a worktable;

[0010] The workbench has a protective housing at its top, and a vertical rack runs through the inside of the protective housing. A scale pointer is fixedly connected to the top of the vertical rack. A scale ruler is connected to one side of the top of the protective housing, and the surface of the scale ruler is marked with graduations.

[0011] A pulling clamp structure is provided, wherein a force gauge is connected to the bottom end of the vertical rack, and the end of the force gauge away from the vertical rack is connected to the pulling clamp structure. The pulling clamp structure includes a second pressure plate, and the second pressure plate is connected to the force gauge.

[0012] The first leg is provided at the four perimeter of the worktable away from the protective shell, and the second leg is hinged to both sides of the worktable.

[0013] The adjustment structure includes an adjustment structure on the surface of both the second leg and the first leg, and the adjustment structure includes a through hole, which is fixed to the first leg.

[0014] The second leg and the first leg are provided with a stabilizing structure at the ends away from the worktable, and the stabilizing structure includes a first connector, the top end of the first connector being fixed to the first leg.

[0015] Furthermore, one end of the vertical rack is provided with a transmission gear rod, and the transmission gear rod and the vertical rack are in a meshing transmission relationship. A rocker arm is provided on one side of the transmission gear rod, and a rocker handle is connected to the side of the rocker arm away from the transmission gear rod.

[0016] Furthermore, a first pressure plate is provided on one side of the second pressure plate, and a hinge rod is hinged at the connection between the first pressure plate and the second pressure plate. The surfaces of the second pressure plate and the first pressure plate are provided with strip-shaped racks and grooves, which are in a meshing relationship with each other.

[0017] Furthermore, threaded holes are provided on both sides of the first and second pressure plates away from the hinge rod. The pulling clamp structure includes a connecting rod, and connecting screws are movably connected to both sides of the connecting rod. The connecting screws and the threaded holes are slidably connected, and the connection is threaded.

[0018] Furthermore, the first and second legs include three sets of sliding rods with different diameters, namely the first sliding rod, the second sliding rod, and the third sliding rod. The three sets of sliding rods are slidably connected, and the adjustment structure is located at the connection of the first sliding rod, the second sliding rod, and the third sliding rod.

[0019] Furthermore, a fastening screw passes through the inside of the through hole, and the fastening screw and the diameter of the through hole are in a threaded relationship. An elastic metal ring passes through one side of the fastening screw, and the elastic metal ring is elastic. A pressure plate is connected to the side of the fastening screw away from the elastic metal ring, and an anti-slip protrusion is provided on the side of the pressure plate closer to the inside of the first leg.

[0020] Furthermore, a second connector is provided at the end of the first connector away from the first leg, and the second connector and the first connector are in a cross connection relationship. Hinges are provided through both sides of the first connector and the second connector, and there are two sets of hinges with different diameters. The two sets of hinges are in a cross connection.

[0021] Furthermore, the second connector has a stabilizing foot at the end away from the first connector, and the stabilizing foot has a trapezoidal shape that is smaller at the top and larger at the bottom, with a toothed anti-slip groove at the bottom end.

[0022] Furthermore, threaded grooves extend through both sides of the stabilizing foot, and threaded rods extend through the inside of the threaded grooves. The connection between the threaded rod and the threaded groove is threaded. A fixing rod is connected to the bottom end of the threaded rod, and pressure springs are provided around the fixing rod. The pressure springs are elastic.

[0023] This invention provides a novel weeding stress meter with improvements over existing technologies, offering the following improvements and advantages:

[0024] Firstly, this invention improves upon the shortcomings of traditional clamping structures, achieving unexpected results. While ensuring the number of branches that can be clamped, it increases the friction between the clamping plates and the branches, and allows adjustment of the clamping plate tightness according to the number of branches. The threaded drive prevents slippage during short-term pulling. The pulling clamp structure can hold plant roots, and the second and first pressure plates work together to engage multiple groups of plant branches, strengthening the clamping effect. The engaging structure increases the friction between the clamping plates and the plant, preventing the plant from slipping during pulling. Furthermore, a connecting screw connects the first and second pressure plates to the side away from the hinge. Rotating the connecting screw allows adjustment of the clamping force according to different plant types, effectively securing the plant and preventing it from breaking due to excessive force. If the plant breaks during pulling, it will snap, negating the purpose of pulling the plant.

[0025] Secondly, this invention uses a fully mechanical structure, without a motor or power line connection, making it more environmentally friendly and cost-effective. Experiments can be conducted manually, facilitating use in situations without electricity in the field. During use, the crank handle rotates at a constant speed, driving the transmission gear rod to move. The transmission gear rod, through gear transmission, moves the vertical rack up and down. The vertical rack is connected to a tension gauge and a pulling clamp structure. When the tension between the reinforcing material and the soil is strong and difficult to pull out, the pointer is at a lower position on the scale; when the tension between the reinforcing material and the soil is weak and easy to pull out, the pointer is at a higher position on the scale. The pointer displays the displacement change in real time on the scale, and the tension gauge 10 displays the tension change. The tension gauge 10 can be an NK-10 model. The ease of pulling out the material reflects the stability of the composite soil.

[0026] Thirdly, the device can adapt to different environments and can be adjusted at multiple angles through the cooperation of the first and second legs. It can be used not only on level ground, but also for pull-out tests on protective plants on slopes and for pulling out geogrids in roadbed engineering. The connection between the sliding rods inside the first and second legs is equipped with an adjustment structure to adjust the tightness of the connection and thus adjust the length. The ends of the first and second legs away from the work platform are equipped with stabilizing structures. The toothed anti-slip grooves at the bottom of the stabilizing feet can play a role in anti-slip and gripping the ground. The trapezoidal shape of the stabilizing feet is more stable. In addition, the threaded rods running through both sides of the stabilizing feet can play a reinforcing role.

[0027] Finally, the materials used in this invention are simple, the precision requirements are not high, and the manufacturing process is convenient; the structure is simple, the integrity is high, there are few parts, it is not easy to be damaged, and it is easy to repair after damage; moreover, the instrument is small in size and light in weight, which can be easily carried to the engineering site for in-situ measurement experiments, reducing the inaccuracy of experimental data caused by soil transportation disturbance. Attached Figure Description

[0028] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0029] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0030] Figure 2 This is a front view structural diagram of the present invention;

[0031] Figure 3 This is a side view of the structure of the present invention;

[0032] Figure 4 This is a front sectional view of the protective housing of the present invention;

[0033] Figure 5 This is a top sectional view of the protective housing of the present invention;

[0034] Figure 6 This is a schematic diagram illustrating the application of the present invention in vertically uprooting plants on a slope.

[0035] Figure 7 This is a schematic diagram illustrating the application of the present invention in pulling up geogrids on a roadbed;

[0036] Figure 8 This is a three-dimensional enlarged schematic diagram of the drawing clamp structure of the present invention;

[0037] Figure 9 This is a top sectional view of the adjustment structure of the present invention;

[0038] Figure 10 This is a partially enlarged three-dimensional schematic diagram of the stable structure of the present invention;

[0039] Figure 11 This is an enlarged front sectional view of the stable structure of the present invention;

[0040] Figure 12 This is a schematic diagram of the connection between the first connector and the second connector of the present invention.

[0041] Explanation of reference numerals in the attached drawings: 1. Scale; 2. Scale pointer; 3. Transmission gear rod; 4. Rocker arm; 5. Handle; 6. First support leg; 7. Adjustment structure; 701. Fastening screw; 702. Through hole; 703. Elastic metal ring; 704. Pressure plate; 8. Stabilizing structure; 801. First connecting piece; 802. Second connecting piece; 803. Stabilizing foot; 804. Threaded groove; 805. Hinge; 806. Threaded rod; 807. Fixed insertion rod; 808. Pressure spring block; 9. Pull-out clamp structure; 901. Hinge rod; 902. First pressure plate; 903. Second pressure plate; 904. Threaded hole; 905. Connecting rod; 906. Connecting screw; 10. Force gauge; 11. Second support leg; 12. Vertical rack; 13. Protective housing; 14. Worktable. Detailed Implementation

[0042] The following will be combined with the appendix Figures 1 to 12 This invention will be described in detail, and the technical solutions in the embodiments of this invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0043] This invention provides a novel weeding stress meter through improvements, such as... Figure 1-12 As shown in the figure, a novel weeding stress meter includes a worktable 14.

[0044] The worktable 14 has a protective shell 13 at its top, and a vertical rack 12 runs through the interior of the protective shell 13. The top of the vertical rack 12 is fixedly connected to the scale pointer 2. A scale ruler 1 is connected to one side of the top of the protective shell 13, and the surface of the scale ruler 1 is marked with graduations. When the tension between the reinforcing material and the soil is strong and difficult to pull out, the scale pointer 2 is at a lower position on the scale ruler 1; when the tension between the reinforcing material and the soil is weak and easy to pull out, the scale pointer 2 is at a higher position on the scale ruler 1. The scale pointer 2 displays the displacement change on the scale ruler 1 in real time.

[0045] A transmission gear rod 3 is provided at one end of the vertical rack 12, and the transmission gear rod 3 and the vertical rack 12 are in a meshing transmission relationship. The transmission gear rod 3 drives the vertical rack 12 to rise and fall through the meshing transmission. A rocker arm 4 is provided on one side of the transmission gear rod 3, and a crank handle 5 is connected to the side of the rocker arm 4 away from the transmission gear rod 3. When in use, the crank handle 5 is shaken at a constant speed to drive the transmission gear rod 3 to rotate. This invention uses a fully mechanical structure, without a motor, and does not require connection to power lines, which is more environmentally friendly and cost-effective. Experiments can be carried out by manpower alone, which is beneficial for use in the field when there is no power.

[0046] The pull-out clamp structure 9 has a tension gauge 10 connected to the bottom end of the vertical rack 12. The vertical rack 12 is connected to the pull-out clamp structure 9 through the tension gauge 10. The tension gauge 10 displays the change in tension. The tension gauge 10 can be of model NK-10. When in use, it can reflect the stability of the composite soil according to the difficulty of pulling out. The end of the tension gauge 10 away from the vertical rack 12 is connected to the pull-out clamp structure 9. The pull-out clamp structure 9 can clamp the plant roots. The pull-out clamp structure 9 includes a second pressure plate 903, and the second pressure plate 903 is connected to the tension gauge 10.

[0047] The second pressure plate 903 has a first pressure plate 902 on one side, and a hinge rod 901 is hinged at the connection between the first pressure plate 902 and the second pressure plate 903. The surfaces of the second pressure plate 903 and the first pressure plate 902 are provided with strip-shaped teeth and grooves, which are in a meshing relationship with each other. The second pressure plate 903 and the first pressure plate 902 work together to bite multiple groups of plant branches, thereby strengthening the clamping effect. The biting structure can increase the friction between the clamp and the plant, preventing the plant from slipping during the pulling process.

[0048] Both the first pressure plate 902 and the second pressure plate 903 have threaded holes 904 on both sides of the end away from the hinge rod 901. The pulling clamp structure 9 includes a connecting rod 905, and connecting screws 906 are movably connected to both sides of the connecting rod 905. The connecting screws 906 connect the first pressure plate 902 and the side of the second pressure plate 903 away from the hinge. Rotating the connecting screws 906 can adjust the clamping force according to different types of plants, so as to fix the plant and avoid breaking the plant by excessive force. If the plant is broken, it will break during the pulling process, which will not achieve the purpose of pulling the plant. The object serves to connect the screw 906 and the threaded hole 904 in a sliding connection, and the connection is threaded. This invention improves upon the shortcomings of traditional clamping structures, achieving unexpected results. While ensuring the number of clamping branches, it increases the friction between the clamping plate and the branches, and the tightness of the clamping plate can be adjusted according to the number of branches. The threaded drive method prevents slippage during short-term pulling. This invention has a wide range of applications, not only limited to pull-out tests of slope protection plants and roadbed reinforcement materials, but also applicable to pulling out other small objects buried in the soil, such as small anchors and piles.

[0049] The first leg 6 is provided on the four perimeter of the worktable 14 away from the protective shell 13, which serves as a support device. The two sides of the worktable 14 are hinged with the second leg 11. The connection can be movable, so that the angle of rotation can be adjusted in time according to the angle of the slope. The second leg 11 is provided in two sets at the top and bottom, which can not only serve as a support device, but also pull the device from the top.

[0050] The first leg 6 and the second leg 11 include three sets of sliding rods with different diameters. The first leg 6 and the second leg 11 work together to enable the device to adapt to different environments and can be adjusted at multiple angles. It can be used not only on level ground, but also to conduct pull-out tests on protective plants on slopes and to pull out geogrids in roadbed engineering. The three sets of sliding rods are the first sliding rod, the second sliding rod, and the third sliding rod. The adjustment structure 7 is located at the connection of the first sliding rod, the second sliding rod, and the third sliding rod. The function of the adjustment structure 7 is to adjust the tightness of the connection and adjust the height of the device to adapt to different environments.

[0051] The adjustment structure 7 is provided on the surface of both the second leg 11 and the first leg 6, and the adjustment structure 7 includes a through hole 702, and the through hole 702 is fixed to the first leg 6.

[0052] A fastening screw 701 passes through the through hole 702. The working principle of the adjustment structure 7 is to rotate the fastening screw 701. The fastening screw 701 and the diameter of the through hole 702 are in a threaded transmission relationship, which can move the fastening screw 701 towards the first leg 6. An elastic metal ring 703 passes through one side of the fastening screw 701. The elastic metal ring 703 is elastic. The function of the elastic metal ring 703 is to prevent the fastening screw 701 from jamming due to excessive force during rotation. A pressure plate 704 is connected to the side of the fastening screw 701 away from the elastic metal ring 703. The pressure plate 704 abuts against the first leg 6 to achieve a fixing effect. The side of the pressure plate 704 near the inside of the first leg 6 is provided with anti-slip protrusions.

[0053] The stabilizing structure 8 is provided at the end of the second leg 11 and the first leg 6 away from the worktable 14. The stabilizing structure 8 includes a first connector 801, and the top end of the first connector 801 is fixed to the first leg 6.

[0054] The first connector 801 is provided with a second connector 802 at the end away from the first leg 6, and the second connector 802 and the first connector 801 are cross-connected, so that the first connector 801 and the second connector 802 can be flipped in four directions. This structure allows the bottom of the device to be flexibly flipped according to the terrain, so that the bottom surface of the leg is more in line with the ground. Both sides of the first connector 801 and the second connector 802 are provided with hinges 805. The first connector 801 and the second connector 802 are cross-connected, and two sets of hinges 805 are provided at the connection point. There are two sets of hinges 805, and the diameters of the two sets of hinges 805 are different. The two sets of hinges 805 are cross-connected.

[0055] The second connector 802 is provided with a stabilizing foot 803 at the end away from the first connector 801. The stabilizing foot 803 has a trapezoidal shape that is smaller at the top and larger at the bottom. The trapezoidal shape of the stabilizing foot 803 makes it more stable. The bottom end of the stabilizing foot 803 is provided with a toothed anti-slip groove. The toothed anti-slip groove at the bottom end of the stabilizing foot 803 can play a role in anti-slip and gripping the ground.

[0056] The stabilizing foot 803 has threaded grooves 804 running through both sides, and a threaded rod 806 runs through the inside of the threaded grooves 804. Rotating the threaded rod 806 running through both sides of the stabilizing foot 803 can play a reinforcing role. The connection between the threaded rod 806 and the threaded groove 804 is threaded. The bottom end of the threaded rod 806 is connected to a fixing rod 807, and pressure springs 808 are provided around the fixing rod 807. The pressure springs 808 are elastic. The pressure springs 808 on both sides of the fixing rod 807 expand outward to further strengthen the fixing effect between the stabilizing foot 803 and the soil, making the device more stable when pulling objects.

[0057] Finally, the materials used in this invention are simple, the precision requirements are not high, and the manufacturing process is convenient; the structure is simple, the overall integrity is high, there are few parts, it is not easily damaged, and it is easy to repair after damage; moreover, the instrument is small in size and light in weight, which can be easily carried to the engineering site for in-situ measurement experiments, reducing the inaccuracy of experimental data caused by soil transportation disturbance.

[0058] Example 1

[0059] like Figure 6 As shown, Figure 6 This is a schematic diagram of a pull-out test of protective vegetation on a slope according to the present invention. The stabilizing structure 8 is placed on the slope. First, the adjusting structure 7 is adjusted to adjust the length of the four sets of first legs 6, making the first legs 6 at higher elevations shorter and those at lower elevations longer, thus ensuring the instrument is vertical. The pull-out clamp structure 9 is adjusted to clamp the reinforcing material. Then, the crank handle 5 is cranked at a constant speed, causing the vertical rack 12 to slowly rise, pulling the reinforcing material out of the soil on the slope. The scale pointer 2 displays the displacement changes in real time on the scale 1, and the tension gauge 10 displays the tension changes. The tension gauge 10 can be an NK-10 model. The displacement and tension values ​​are then manually recorded in the field, and the data is subsequently analyzed.

[0060] Example 2

[0061] like Figure 7 As shown, Figure 7This is a schematic diagram of the present invention used to pull geogrids out of the subgrade in roadbed engineering. In use, the second support leg 11 on one side is opened, flipped over, and the adjustment structure 7 on the second support leg 11 is adjusted so that the second support leg 11 on one side supports the instrument, keeping it horizontal. There are two sets of second support legs 11; the other set has an adjustable length, with one end connected to the top of the subgrade slope, facilitating the pulling of the top of the instrument and providing reinforcement and enhanced stability. Then, the length of the first support leg 6 is adjusted, and the stabilizing structure 8 is adjusted to fit tightly against one side of the subgrade slope. On the other side, the pulling clamp structure 9 is adjusted to clamp the geogrid. Then, the crank handle 5 is cranked at a constant speed, causing the vertical rack 12 to rise and pull the geogrid out of the subgrade. The scale pointer 2 displays the displacement changes in real time on the scale ruler 1, and the tension gauge 10 displays the tension changes. The displacement and tension values ​​are manually recorded in the field, and then the data is analyzed.

[0062] Working principle: First, the pull-out clamp structure 9 can clamp the plant roots, and the second pressure plate 903 and the first pressure plate 902 work together to engage multiple groups of plant branches, strengthening the clamping effect. The engaging structure can increase the friction between the clamp and the plant, preventing the plant from slipping during the pull-out process. In addition, the connecting screw 906 connects the first pressure plate 902 and the second pressure plate 903 to the side away from the hinge. Rotating the connecting screw 906 can adjust the clamping force according to different types of plants, thus fixing the plant and preventing it from being broken by excessive force. If the plant is broken, it will break during the pull-out process, thus failing to achieve the purpose of pulling out the plant. The invention has a wide range of applications, not only limited to pull-out tests of slope protection plants and roadbed reinforcement materials, but also can be used to pull out other small objects buried in the soil, such as small anchors and piles.

[0063] Then, during use, the crank handle 5 is cranked at a constant speed to drive the transmission gear rod 3 to rotate. The transmission gear rod 3 drives the vertical rack 12 to rise and fall through the meshing transmission. The vertical rack 12 is connected to the pull-out clamp structure 9 through the tension gauge 10. When the tension between the reinforcing material and the soil is strong and difficult to pull out, the scale pointer 2 is at a lower position on the scale 1. When the tension between the reinforcing material and the soil is weak and easy to pull out, the scale pointer 2 is at a higher position on the scale 1. The scale pointer 2 displays the displacement change on the scale 1 in real time, and the tension gauge 10 displays the tension change. The model of the tension gauge 10 can be NK-10. During use, the stability of the composite soil can be reflected according to the difficulty of pulling out.

[0064] Finally, the first leg 6 and the second leg 11 work together to allow the device to adapt to different environments. The first leg 6 and the second leg 11 include three sets of sliding connections with sliding rods of different diameters, which can adjust the height of the device to adapt to different environments. The other four sets of the first leg 6 are fixedly connected to the worktable 14, serving as a support for the device. The connection between the second leg 11 and the worktable 14 is movable, allowing for timely adjustment of the flipping angle according to the slope angle. Additionally, the second leg 11 has two sets, one at the top and one at the bottom, which not only support the device but also allow for pulling the device from the top. The connection points of the sliding rods inside the first leg 6 and the second leg 11 are equipped with adjustment structures 7. The function of the adjustment structures 7 is to adjust the tightness of the connection, thereby adjusting the length. The working principle of the adjustment structures 7 is to rotate the fastening screw 701, causing the fastening screw 701 to move towards the first leg 6. The pressure plate 704 presses against the first leg 6 to achieve a fixing effect. The function of ring 703 is to prevent excessive force during rotation from causing the fastening screw 701 to jam. The ends of the first leg 6 and the second leg 11 away from the workbench 14 are equipped with stabilizing structures 8. The toothed anti-slip grooves at the bottom of the stabilizing foot 803 can play a role in anti-slip and gripping the ground. The trapezoidal shape of the stabilizing foot 803 makes it more stable. In addition, the threaded rods 806 that pass through both sides of the rotating stabilizing foot 803 can play a role in reinforcement. The pressure springs 808 on both sides of the fixing rod 807 expand outward to further strengthen the fixing effect between the stabilizing foot 803 and the soil, making the device more stable when pulling objects. The first connector 801 and the second connector 802 are cross-connected, and two sets of hinges 805 pass through the connection. The first connector 801 and the second connector 802 can be flipped in four directions. This structure allows the stabilizing foot 803 to flexibly flip according to the terrain, making the bottom surface of the stabilizing foot 803 fit the ground better.

[0065] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel weeding stress meter, comprising a worktable (14), characterized in that: The workbench (14) has a protective shell (13) at the top, and a vertical rack (12) runs through the inside of the protective shell (13). The top of the vertical rack (12) is fixedly connected to the scale pointer (2). A scale ruler (1) is connected to one side of the top of the protective shell (13), and the surface of the scale ruler (1) is marked with graduations. A pulling clamp structure (9) is provided, wherein a tension gauge (10) is connected to the bottom end of the vertical rack (12), and the end of the tension gauge (10) away from the vertical rack (12) is connected to the pulling clamp structure (9). The pulling clamp structure (9) includes a second pressure plate (903), and the second pressure plate (903) and the tension gauge (10) are connected. The first leg (6) is provided on the four periphery of the worktable (14) away from the protective shell (13), and the second leg (11) is hinged to both sides of the worktable (14). Adjustment structure (7), the surfaces of the second leg (11) and the first leg (6) are provided with adjustment structure (7), and the adjustment structure (7) includes a through hole (702), and the through hole (702) and the first leg (6) are fixed together; The second leg (11) and the first leg (6) are provided with a stabilizing structure (8) at the ends away from the workbench (14), and the stabilizing structure (8) includes a first connector (801), the top end of the first connector (801) and the first leg (6) are fixed together; The second pressure plate (903) has a first pressure plate (902) on one side, and a hinge rod (901) is hinged at the connection between the first pressure plate (902) and the second pressure plate (903). The surfaces of the second pressure plate (903) and the first pressure plate (902) are provided with strip-shaped racks and grooves, and they are in a meshing relationship with each other. Both sides of the first pressure plate (902) and the second pressure plate (903) away from the hinge rod (901) have threaded holes (904). The pull-out clamp structure (9) includes a connecting rod (905), and connecting screws (906) are movably connected to both sides of the connecting rod (905). The connecting screws (906) and the threaded holes (904) are slidably connected, and the connection is threaded. One end of the vertical rack (12) is provided with a transmission gear rod (3), and the transmission gear rod (3) and the vertical rack (12) are in a meshing transmission relationship. A rocker arm (4) is provided on one side of the transmission gear rod (3), and a rocker handle (5) is connected to the side of the rocker arm (4) away from the transmission gear rod (3).

2. The novel weeding stress meter according to claim 1, characterized in that: The first leg (6) and the second leg (11) include three sets of sliding rods with different diameters, namely the first sliding rod, the second sliding rod and the third sliding rod. The three sets of sliding rods are in a sliding connection relationship. The adjustment structure (7) is located at the connection of the first sliding rod, the second sliding rod and the third sliding rod.

3. The novel weeding stress meter according to claim 1, characterized in that: A fastening screw (701) passes through the inside of the through hole (702), and the diameters of the fastening screw (701) and the through hole (702) are in a threaded relationship. An elastic metal ring (703) passes through one side of the fastening screw (701), and the elastic metal ring (703) is elastic. A pressure plate (704) is connected to the side of the fastening screw (701) away from the elastic metal ring (703), and an anti-slip protrusion is provided on the side of the pressure plate (704) near the inside of the first leg (6).

4. The novel weeding stress meter according to claim 1, characterized in that: The first connector (801) has a second connector (802) at the end away from the first leg (6), and the second connector (802) and the first connector (801) are cross-connected. Both sides of the first connector (801) and the second connector (802) are connected by hinges (805), and there are two sets of hinges (805), and the diameters of the two sets of hinges (805) are different. The two sets of hinges (805) are cross-connected.

5. A novel weeding stress meter according to claim 4, characterized in that: The second connector (802) has a stabilizing foot (803) at the end away from the first connector (801), and the stabilizing foot (803) has a trapezoidal shape that is smaller at the top and larger at the bottom. The bottom end of the stabilizing foot (803) has a toothed anti-slip groove.

6. A novel weeding stress meter according to claim 5, characterized in that: The stabilizing support (803) has threaded grooves (804) running through both sides, and a threaded rod (806) runs through the inside of the threaded grooves (804). The connection between the threaded rod (806) and the threaded grooves (804) is threaded. A fixing rod (807) is connected to the bottom end of the threaded rod (806), and pressure springs (808) are provided around the fixing rod (807). The pressure springs (808) are elastic.

Images