CN214668293U

CN214668293U - Horizontal clipper appearance of root system test that shears

Info

Publication number: CN214668293U
Application number: CN202122463853.7U
Authority: CN
Inventors: 雷鸣宇; 李战鲁; 江耀; 秦明月; 李家颍
Original assignee: Institute of Mountain Hazards and Environment IMHE of CAS
Current assignee: Institute of Mountain Hazards and Environment IMHE of CAS
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2021-11-09
Anticipated expiration: 2031-10-13

Abstract

The application relates to material physical property measuring device technical field, especially root system physical property test technical field that shears discloses horizontal clipper appearance of root system test that shears, includes: the supporting assembly comprises a front baffle and a rear baffle which are respectively contacted with the root soil and the sheared rear wall; the horizontal loading system is connected with the front baffle and the rear baffle and pushes the front baffle to move in the direction far away from the rear baffle; the lateral stabilizing system is detachably connected with the front baffle and comprises four steel plates which are detachably connected and enclosed to form a rectangular box body with an upper opening and a lower opening; the measuring system comprises a pressure sensor for detecting the thrust of the front baffle, a displacement sensor for detecting the displacement of the front baffle, and a signal converter for acquiring, converting and connecting the data of the pressure sensor and the displacement sensor to the terminal control equipment. The volume expansion and the lateral deviation of the soil body in the shearing process are prevented by utilizing the enclosing effect of the lateral stabilizing system at the front end of the front baffle, and the accuracy of the detection data is ensured.

Description

Horizontal clipper appearance of root system test that shears

Technical Field

The application relates to the technical field of material physical property measuring devices, in particular to a root system shear-resistant physical property testing technical field, and specifically relates to a horizontal clipper for root system shear-resistant testing.

Background

The vegetation soil fixation is the best mode for treating water and soil loss and preventing natural disasters such as landslide, debris flow and the like at present, but because different vegetation roots are developed to different degrees and have different soil fixation capacities, the vegetation is scientifically and reasonably selected according to specific geological conditions, so that the vegetation grows to meet local climatic conditions and simultaneously can achieve the optimal soil fixation capacity, and the disasters such as landslide, debris flow and the like are fundamentally prevented and solved.

The vegetation soil fixation mainly depends on the friction combination between the developed root system of the vegetation and the soil, so that the soil can form a whole through the friction combination of the root system, a large number of root systems go deep into the soil, so that the soil has good integrity in a considerable depth, and the local collapse, the landslide and the like are avoided.

The shear strength of the root system is bound to the conditions of large size of the root system, complex distribution of the root system and the like, and no better test method exists at present. In the previous shear strength test of the root-soil complex, an indoor triaxial test and a direct shear test are mostly adopted, the test cost is high, and the real root system structure and root system distribution cannot be measured. Therefore, the traditional root shear strength measurement has higher limitation.

SUMMERY OF THE UTILITY MODEL

In order to solve the degree of distortion that exists among the measurement means that current root system shears to shallow layer landslide disaster investigation high, with high costs, can not accurately reflect different plant roots's solid native ability to unable artificial prejudgement masters massif landslide, and the possibility that the debris flow takes place even avoids the scheduling problem as far as natural disasters, this application provides a horizontal clipper appearance of root system shear test, its aim at: the shear resistance and the soil fixation capacity of the plant root system can be truly reflected, so that a reliable basis is provided for scientific evaluation of the shear landslide possibility of the mountain.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

a horizontal clipper appearance of root system shear test includes: the supporting assembly comprises a front baffle and a rear baffle which are respectively contacted with the root soil and the sheared rear wall; the horizontal loading system is connected with the front baffle and the rear baffle and pushes the front baffle to move in the direction far away from the rear baffle; the lateral stabilizing system is detachably connected with the front baffle and comprises four steel plates which are detachably connected and enclosed to form a rectangular box body with an upper opening and a lower opening; the measuring system comprises a pressure sensor for detecting the thrust of the front baffle, a displacement sensor for detecting the displacement of the front baffle, and a signal converter for acquiring, converting and connecting the data of the pressure sensor and the displacement sensor to the terminal control equipment.

The theory of operation of this scheme is for enclosing four steel sheets in the lateral stabilization system and closing in waiting to detect root system soil appearance formation rectangle box, keeps the fixed baffle of backplate and utilizes horizontal loading system to promote preceding baffle and shear the displacement, and the thrust of baffle output before pressure sensor detects, and the displacement volume of baffle before the displacement sensor detects, and the shear strength of root system soil is calculated out according to above-mentioned data. The horizontal loading system is used as a power output end for pushing the front baffle to move, and the horizontal loading system can be realized by adopting hydraulic or electric technologies and the like in the prior art. The key point of this scheme lies in the setting of side direction stable system, and preceding baffle passes through the root system soil that rectangle box body transmitted the rectangle box body with thrust, for directly promoting the prior art of plant roots soil with preceding baffle, can prevent to cut the volume expansion and the lateral deviation of in-process soil body to guarantee the accuracy nature of testing data. In addition, can dismantle the connection between the steel sheet that constitutes the rectangle box body among the lateral stabilization system, not only be based on its needs enclose the operation of being convenient for when closing plant roots soil, all can dismantle the connection between all steel sheets moreover, be convenient for accomodate when not using the clipper appearance. Simultaneously, also adopt the mode of dismantling the connection between steel sheet and the preceding baffle, be convenient for pull down the lateral stabilization system equally and accomodate alone, can also use the different steel sheet of size according to the difference that is detected root system soil size to be applicable to the shear strength test of the root system soil of unidimensional not, enlarge the application scope of this application.

Further, the preferred scheme of a horizontal loading system is provided, the horizontal loading system comprises an oil cylinder barrel, two ends of the oil cylinder barrel are respectively connected with the front baffle and the rear baffle and the oil cylinder barrel performs telescopic movement by utilizing hydraulic oil, a support is arranged at one end, close to the rear baffle, of the oil cylinder barrel, and a displacement sensor used for detecting the telescopic amount of the oil cylinder barrel is installed on the support. Adopt hydraulic system to promote preceding baffle as the drive in this scheme and cut the displacement, wherein, the backplate is connected to the fixed one end of oil cylinder section of thick bamboo, carries out baffle before telescopic motion's one end is connected. The displacement of the front baffle is the same as the telescopic quantity of the oil cylinder barrel, and the displacement sensor directly detects the telescopic quantity of the oil cylinder barrel so as to reduce measurement errors.

Furthermore, the pressure sensor is arranged at one end of the oil cylinder barrel close to the front baffle and is coaxially connected with the oil cylinder barrel.

Furthermore, the other end of the pressure sensor is fixedly connected with a connecting support which stretches from the middle to the two ends along the length direction, and the connecting support is detachably connected with the front baffle.

Further, fixedly connected with trapezoidal support on the support, the one end that the support was kept away from to trapezoidal support is connected the installation frame, and the installation frame can be dismantled with the backplate and be connected.

Further, the mounting frame comprises a rectangular outer frame formed by enclosing the section bar a and the section bar b, a section bar c which is parallel to the section bar b and is arranged in the rectangular outer frame, and a section bar d which penetrates through the section bar b and the section bar c and is arranged parallel to the section bar a.

Furthermore, the measuring system also comprises a built-in power supply connected with the pressure sensor and the displacement sensor through a power supply module, and a wireless data transmission device connected with the pressure sensor and the displacement sensor.

Furthermore, the horizontal loading system comprises an electric hydraulic oil pump detachably connected with the oil cylinder barrel, and the electric hydraulic oil pump is connected with the terminal control equipment through a signal converter.

The beneficial effect of this application is:

(1) the lateral stabilizing system for enclosing root soil is arranged at the front end of the front baffle plate, and the lateral stabilizing system is used for preventing the volume expansion and the lateral deviation of soil in the shearing process by utilizing the enclosing effect, so that the accuracy of detection data is ensured.

(2) Each steel sheet among the side direction stable system can be dismantled, can dismantle between preceding baffle and the linking bridge, can dismantle between backplate and the installation frame for it is littleer to dismantle the whole volume of back equipment, reduces the transportation degree of difficulty and cost, and then degree of difficulty and the cost of normal position survey clipper intensity in the reduction mountain calamity investigation.

(3) The data acquisition system is constructed through programming to realize automatic data acquisition, and electric signals of the pressure sensor and the displacement sensor are converted into analog signals through the signal converter and enter the terminal control equipment to realize data visualization.

(4) The slave terminal control equipment can control the rotating speed of the electric hydraulic oil pump and control the instantaneous discharge capacity of the hydraulic oil pump, so that the output force, the displacement and the loading rate of the oil pump can be accurately controlled.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a front view of the present application;

FIG. 2 is a perspective view of the present application;

FIG. 3 is an exploded schematic view of the present application;

fig. 4 is a schematic structural view of the present application at another angle after structural decomposition.

In the figure: 1-a rear baffle; 2-a mounting frame; 201-section a; 202-section b; 203-section c; 204-section bar d; 3-a ladder stand; 4-a displacement sensor; 5-horizontal loading system; 501-oil cylinder barrel; 502-support; 6-front baffle; 7-lateral stabilization system; 8-a pressure sensor; 9-connecting the bracket.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

a horizontal clipper for root shear test as shown in fig. 1, comprising: the supporting assembly comprises a front baffle 6 and a rear baffle 1 which are respectively contacted with root soil and a sheared rear wall; the horizontal loading system 5 is connected with the front baffle 6 and the rear baffle 1 and pushes the front baffle 6 to move in the direction far away from the rear baffle 1; the lateral stabilizing system 7 is detachably connected with the front baffle 6 and comprises four steel plates which are detachably connected and enclosed to form a rectangular box body with an upper opening and a lower opening; the measuring system comprises a pressure sensor 8 for detecting the thrust of the front baffle 6, a displacement sensor 4 for detecting the displacement of the front baffle 6, and a signal converter for acquiring, converting and connecting the data of the pressure sensor 8 and the displacement sensor 4 to a terminal control device.

The working principle is as follows:

when using the clipper appearance in this application, at first dig out the space that is used for placing the clipper appearance in the periphery that is detected the object, place the detection position with the clipper appearance after, install the side direction stable system, be connected steel sheet and preceding baffle 6 promptly to connect all four steel sheets and form the rectangle box body and enclose to close outside waiting to detect the plant roots soil. In the measurement process, the fixing of the rear baffle 1 is kept, the horizontal loading system 5 gradually pushes the front baffle 6 to move at a constant speed, and meanwhile, the front baffle 6 acts the thrust on the plant root soil in the rectangular box body through the measurement stabilizing system.

Example 2:

this example is further optimized and defined based on example 1.

As shown in fig. 4, the horizontal loading system 5 includes an oil cylinder barrel 501, two ends of which are respectively connected to the front baffle 6 and the rear baffle 1 and which performs telescopic movement by using hydraulic oil, a support 502 is disposed at one end of the oil cylinder barrel 501 close to the rear baffle 1, and a displacement sensor 4 for detecting the telescopic amount of the oil cylinder barrel 501 is mounted on the support 502.

Example 3:

in this embodiment, further optimization and limitation are performed on the basis of embodiment 2.

As shown in fig. 2, the pressure sensor 8 is installed at one end of the oil cylinder barrel 501 close to the front baffle 6 and is coaxially connected with the oil cylinder barrel 501, and the coaxiality of the pressure sensor 8 and the oil cylinder barrel 501 is favorable for ensuring the detection accuracy of the pressure sensor 8. As shown in fig. 3, the other end of the pressure sensor 8 is fixedly connected with a connecting bracket 9 which extends and retracts from the middle to the two ends along the length direction, and the connecting bracket 9 is detachably connected with the front baffle 6. Specifically, two ends of the pressure sensor 8 are respectively connected with the oil cylinder barrel 501 and the connecting bracket 9, and the connecting bracket 9 is used for installing and fixing the front baffle 6. The telescopic arrangement of the connecting bracket 9 facilitates the adjustment of the length of the connecting bracket 9 when front baffles 6 of different sizes are used according to the detected object.

As shown in fig. 1 and 4, a trapezoidal bracket 3 is fixedly connected to the support 502, one end of the trapezoidal bracket 3 away from the support 502 is connected to the mounting frame 2, and the mounting frame 2 is detachably connected to the tailgate 1. As shown in fig. 3, the mounting frame 2 includes a rectangular outer frame formed by enclosing a profile a201 and a profile b202, a profile c203 parallel to the profile b202 and mounted in the rectangular outer frame, and a profile d204 penetrating the profile b202 and the profile c203 and arranged parallel to the profile a 201. It is worth noting that the present solution focuses on the arrangement of the profile d204, which is arranged throughout the profiles b202 and c203 to increase the strength of the profiles b202 and c203 and the overall strength of the mounting frame 2.

Example 4:

on the basis of any one of the above embodiments of the present embodiment, the power supply and data transmission schemes of the pressure sensor 8 and the displacement sensor 4 in the measurement system are further optimized. The measuring system also comprises a built-in power supply connected with the pressure sensor 8 and the displacement sensor 4 through a power supply module, and a wireless data transmission device connected with the pressure sensor 8 and the displacement sensor 4. Because the application places of the hair clipper are often in the field with inconvenient electricity taking, the pressure sensor 8 and the displacement sensor 4 can be directly used due to the arrangement of the built-in power supply, and the convenience of the hair clipper is improved. In a similar way, the data transmission scheme is optimized by the arrangement of the wireless data transmission device, and the convenience of the hair clipper is improved.

Example 5:

the present embodiment further optimizes the structural composition of the horizontal loading system 5 on the basis of any one of the above embodiments. The horizontal loading system 5 comprises an electric hydraulic oil pump detachably connected with the oil cylinder barrel 501, and the electric hydraulic oil pump is connected with a terminal control device through a signal converter. In this embodiment, the instantaneous displacement of the hydraulic oil pump is controlled by setting the electric hydraulic oil pump with a controllable rotation speed to control the force and displacement of the output of the oil pump, thereby controlling the shear rate of the horizontal loading system 5. When the electric hydraulic oil pump is used, a user inputs a control signal from the terminal control equipment, and the signal converter converts the control signal into a point signal and then adjusts the rotating speed of the electric hydraulic oil pump.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a horizontal clipper appearance of root system test that shears which characterized in that: the method comprises the following steps:

the supporting assembly comprises a front baffle (6) and a rear baffle (1) which are respectively contacted with root soil and a sheared rear wall;

the horizontal loading system (5) is connected with the front baffle (6) and the rear baffle (1) and pushes the front baffle (6) to move along the direction far away from the rear baffle (1);

the lateral stabilizing system (7) is detachably connected with the front baffle (6) and comprises four steel plates which are detachably connected and enclosed to form a rectangular box body with an upper opening and a lower opening;

the measuring system comprises a pressure sensor (8) for detecting the thrust of the front baffle (6), a displacement sensor (4) for detecting the displacement of the front baffle (6), and a signal converter for acquiring, converting and connecting the data of the pressure sensor (8) and the displacement sensor (4) to a terminal control device.

2. The horizontal clipper for root shear test of claim 1, wherein: horizontal loading system (5) include both ends connect preceding baffle (6) and backplate (1) respectively and utilize hydraulic oil to carry out telescopic motion's oil cylinder section (501), the one end that oil cylinder section (501) are close to backplate (1) is equipped with support (502), installs displacement sensor (4) that are used for detecting oil cylinder section (501) flexible volume on support (502).

3. The horizontal clipper for root shear test of claim 2, wherein: the pressure sensor (8) is installed at one end, close to the front baffle (6), of the oil cylinder barrel (501) and is coaxially connected with the oil cylinder barrel (501).

4. The horizontal clipper for root shear test of claim 3, wherein: the other end fixedly connected with of pressure sensor (8) is along length direction from centre to the flexible linking bridge (9) in both ends, linking bridge (9) can dismantle with preceding baffle (6) and be connected.

5. The horizontal clipper for root shear test of claim 2, wherein: fixedly connected with trapezoidal support (3) on support (502), installation frame (2) are connected to the one end that support (502) were kept away from in trapezoidal support (3), and installation frame (2) can be dismantled with backplate (1) and be connected.

6. The horizontal clipper for root shear test of claim 5, wherein: the mounting frame (2) comprises a rectangular outer frame formed by enclosing a profile a (201) and a profile b (202), a profile c (203) which is parallel to the profile b (202) and is arranged in the rectangular outer frame, and a profile d (204) which penetrates through the profile b (202) and the profile c (203) and is parallel to the profile a (201).

7. The horizontal clipper for root shear test of claim 1, wherein: the measuring system also comprises a built-in power supply connected with the pressure sensor (8) and the displacement sensor (4) through a power supply module, and a wireless data transmission device connected with the pressure sensor (8) and the displacement sensor (4).

8. The horizontal clipper for root shear test of claim 1, wherein: the horizontal loading system (5) comprises an electric hydraulic oil pump detachably connected with the oil cylinder barrel (501), and the electric hydraulic oil pump is connected with terminal control equipment through a signal converter.