Soil pretreatment device for soil detection

Abstract

The utility model belongs to the technical field of soil detection pretreatment equipment, in particular to a soil pretreatment device for soil detection, which is characterized in that an inlet is formed in the top of a soil screening box, an outlet is formed in the bottom of the soil screening box, and a screening box is in sliding fit with the inner side wall of the soil screening box; the soil screening box is rotatably connected with a scattering and stirring cutter corresponding to the inlet, the scattering and stirring cutter is driven by a power device, the soil screening box is rotatably connected with a transition shaft, the soil screening box is slidably connected with a connecting seat, the connecting seat is detachably connected with the screening box, and the connecting seat is connected with the screening box. The transition shaft and the connecting seat are respectively hinged with a crank and a rocker, the crank is hinged with the other end of the rocker, and the transition shaft is connected with the scattering and stirring cutter rotating shaft through a synchronous belt assembly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of soil detection pretreatment equipment, specifically is a soil pretreatment device for soil detection. BACKGROUND

[0002] In the field of soil detection, pretreatment of soil samples is a key step to ensure the accuracy and reliability of the detection results. Traditional soil pretreatment methods often rely on manual operation, such as manual screening and simple stirring. This approach has many drawbacks. On the one hand, manual screening is inefficient. For a large number of soil samples, the time and labor cost is too high, making it difficult to meet the needs of modern large-scale soil detection. On the other hand, manual stirring cannot ensure uniform dispersion of soil particles, which can lead to ineffective breaking of soil aggregates, affecting the extraction and analysis of soil components in subsequent detection, and failing to accurately reflect the true nature of the soil.

[0003] With the development of technology and the increasing demand for soil detection accuracy, it is urgent to develop a high-efficiency, automated soil pretreatment device that can ensure the quality of soil pretreatment. Although some existing soil pretreatment equipment has achieved mechanized operation to some extent, it still has problems such as incomplete screening, uneven stirring, complex equipment structure, inconvenient operation, and high maintenance cost. For example, the screening device of some equipment is prone to clogging after long-term use and is difficult to clean and maintain. The power transmission of the stirring device is unstable, and stable speed control cannot be achieved, which affects the effectiveness of soil pretreatment. Therefore, a new soil pretreatment device is needed to overcome these problems and improve the overall efficiency and quality of soil detection. SUMMARY

[0004] To overcome the deficiencies of the prior art, the utility model provides a soil pretreatment device for soil detection, which solves the technical problems of incomplete screening, uneven stirring, complex equipment structure, inconvenient operation, and high maintenance cost.

[0005] The utility model adopts the following scheme: a soil pretreatment device for soil detection, comprising a soil screening box, characterized in that the top of the soil screening box is provided with an inlet, the bottom is provided with an outlet, the inner side wall is slidably connected with a screening box, the bottom of the screening box is provided with a plurality of sieve holes, the soil screening box is rotatably connected with a dispersing and stirring knife corresponding to the inlet, the dispersing and stirring knife is driven by a power device, the soil screening box is rotatably connected with a transition shaft, the soil screening box is slidably connected with a connecting seat, the connecting seat and the screening box are detachably connected, the transition shaft and the connecting seat are respectively hinged with a crank and a rocker, the crank and the rocker are hingedly arranged between the other ends, and the transition shaft and the dispersing and stirring knife shaft are connected through a synchronous belt assembly.

[0006] Preferably, the power device comprises an electric motor fixedly connected with the soil screening box, the dispersing and stirring knife is driven by the electric motor, and the electric motor is electrically connected with the controller.

[0007] Preferably, the connecting seat is slidably connected with a positioning column, one end of the positioning column is connected with a handle, the handle is connected with the connecting seat through a return spring, and the soil screening box is provided with a plurality of positioning holes corresponding to the positioning column.

[0008] Preferably, the synchronous belt assembly comprises synchronous wheels and a synchronous belt, the dispersing and stirring knife rotating shaft and the transition shaft are both provided with synchronous wheels, and the synchronous wheels are provided with the synchronous belt therebetween.

[0009] Preferably, a guide groove is formed in the inner side wall of the soil screening box away from the connecting seat, and the soil screening box is provided with a guide block corresponding to the guide groove.

[0010] Preferably, the guide groove is in dovetail shape, the guide block is matched with the dovetail-shaped guide groove, and grease is applied between the guide block and the guide groove.

[0011] Beneficial effects:

[0012] First, efficient screening and stirring functions: the dispersing and stirring knife corresponding to the inlet is driven by the power device to rotate at high speed, which can disperse the soil entering the soil screening box and effectively break the soil aggregates, so that the soil particles are more uniform, providing a good foundation for subsequent screening work. The soil screening box and the inner side wall of the soil screening box are slidably connected, and a plurality of screen holes are arranged at the bottom, so that the soil can be screened while being stirred, improving the efficiency of pretreatment. Compared with the traditional manual screening method, the processing time is greatly shortened, meeting the needs of large-scale soil detection.

[0013] Second, stable and reliable transmission structure: the transition shaft and the dispersing and stirring knife rotating shaft are connected through the synchronous belt assembly, which ensures stable transmission between the two, so that the rotating speed of the dispersing and stirring knife can remain stable, avoiding uneven soil treatment caused by fluctuation of rotating speed, improving the quality and stability of soil pretreatment. The synchronous wheels and the synchronous belt in the synchronous belt assembly are reasonably designed, such as the synchronous belt made of polyurethane material and provided with anti-slip tooth pattern, and the synchronous wheel made of aluminum alloy material and subjected to anodic oxidation treatment, which further enhances the reliability and durability of the transmission, reduces the failure rate of the equipment during operation, and reduces the maintenance cost.

[0014] III. Convenient installation and dismounting of the screen box: the connecting seat and the screen box are detachably connected, the positioning column on the connecting seat is slidably connected with the positioning hole on the screen box, which facilitates the operator to quickly install and dismount the screen box, and is convenient for cleaning and replacing the screen mesh, and the maintenance convenience of the equipment is improved. The handle connected with one end of the positioning column and the reset spring are designed, so that the operation is more convenient and labor-saving, and the operator only needs to pull the handle slightly, so that the positioning column and the positioning hole are separated, the dismounting of the screen box is completed, and the operation time and labor cost are saved.

[0015] IV. Good screen box guiding and stability: the dovetail-shaped guiding groove on the inner side wall of the soil screening box is matched with the guiding block on the screen box, and is coated with lubricating grease, so that the stability and smoothness of the screen box in the sliding process are ensured, the screen box is prevented from deviating or shaking, the accuracy of soil screening is ensured, and the precision of soil pretreatment is improved.

[0016] The guiding structure can effectively reduce the friction and wear between the screen box and the soil screening box, prolong the service life of the equipment, and also reduce the noise of the equipment during operation, so that a relatively quiet working environment is provided for the operator. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is one of the perspective views of the utility model.

[0018] Figure 2 of Figure 1 A partial enlarged view of

[0019] Figure 3 is one of the perspective views of the utility model.

[0020] Figure 4 is the second perspective view of the utility model.

[0021] Figure 5 is the third perspective view of the utility model.

[0022] Figure 6 is the fourth perspective view of the utility model.

[0023] Fig. 1 is a soil screening box; 2 is an inlet; 3 is an outlet; 4 is a screen box; 5 is a screen hole; 6 is a scattering and stirring knife; 7 is a transition shaft; 8 is a connecting seat; 9 is a crank; 10 is a rocker; 11 is a motor; 12 is a positioning column; 13 is a handle; 14 is a reset spring; 15 is a positioning hole; 16 is a synchronous wheel; 17 is a synchronous belt; 18 is a guiding groove; 19 is a guiding block. DETAILED DESCRIPTION

[0024] The foregoing and other technical contents, characteristics and effects of the utility model are described in the following with reference to the accompanying drawings.Figures 1-6 The detailed description of the embodiments will be apparent. The structural content mentioned in the following examples is referred to the drawings.

[0025] The various exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0026] Embodiment 1, a soil pretreatment device for soil detection, comprising a soil screening box 1, characterized in that the top of the soil screening box 1 is provided with an inlet 2, the bottom is provided with an outlet 3, the inner side wall is slidably connected with a screening box 4, the bottom of the screening box 4 is provided with a plurality of screen holes 5, the soil screening box 1 is rotatably connected with a dispersing and stirring knife 6 corresponding to the inlet 2, the dispersing and stirring knife 6 is driven by a power device, the soil screening box 1 is rotatably connected with a transition shaft 7, the soil screening box 1 is slidably connected with a connecting seat 8, the connecting seat 8 is detachably connected with the screening box 4, the transition shaft 7 and the connecting seat 8 are respectively hinged with a crank 9 and a rocker 10, the crank 9 and the rocker 10 are hingedly arranged between the other ends, and the transition shaft 7 and the rotating shaft of the dispersing and stirring knife 6 are connected through a synchronous belt 17 assembly.

[0027] As an optional solution of embodiment 1, the power device comprises an electric motor 11 fixedly connected with the soil screening box 1, the dispersing and stirring knife 6 is driven by the electric motor 11, and the electric motor 11 is electrically connected with a controller.

[0028] As an optional solution of embodiment 1, the connecting seat 8 is slidably connected with a positioning column 12, one end of the positioning column 12 is connected with a handle 13, the handle 13 is connected with the connecting seat 8 through a return spring 14, and the screening box 4 is provided with a plurality of positioning holes 15 corresponding to the positioning column 12.

[0029] As an optional solution of embodiment 1, the synchronous belt 17 assembly comprises a synchronous pulley 16 and a synchronous belt 17, the rotating shaft of the dispersing and stirring knife 6 and the transition shaft 7 are both provided with the synchronous pulley 16, and the synchronous pulley 16 is provided with the synchronous belt 17.

[0030] As an optional solution of embodiment 1, the inner side wall of the soil screening box 1 is provided with a guide groove 18 away from the connecting seat 8, and the screening box 4 is provided with a guide block 19 corresponding to the guide groove 18.

[0031] As an optional solution of embodiment 1, the cross section of the guide groove 18 is dovetail-shaped, the guide block 19 is matched with the dovetail-shaped guide groove 18, and lubricating grease is applied between the guide block 19 and the guide groove 18.

[0032] In practical application, the soil screening box 1 of the local soil pretreatment device is made of high-strength stainless steel material to ensure its firmness, durability and good corrosion resistance, and can adapt to various complex soil detection environments.

[0033] The inlet 2 is designed as a larger circular opening to facilitate pouring the soil to be treated into the soil screening box 1, and the outlet 3 is located at the center of the bottom and connected to the subsequent collection device to smoothly guide the pretreated soil out.

[0034] The screening box 4 is made of a stainless steel screen with a suitable aperture, and the size of the screen hole 5 is customized according to specific soil detection requirements. For example, for different soil particle analysis requirements, screen meshes with different apertures such as 2mm, 1mm, etc. can be selected. The screening box 4 is in sliding fit with the inner wall of the soil screening box 1 to ensure that the screening box 4 can move stably laterally during operation, and also facilitates regular disassembly, cleaning and replacement of the screen mesh.

[0035] The dispersing and stirring knife 6 is made of high-quality alloy steel material with high hardness and wear resistance, and is designed as a curved spiral blade or a plurality of dispersing knives arranged at intervals in the circumferential direction. It can disperse and stir the entering soil in all directions during rotation. The motor 11 is an alternating current motor with moderate power, which is fixedly installed on the outer wall of the soil screening box 1 and connected to the rotating shaft of the dispersing and stirring knife 6 through a shaft coupling to provide stable power output for the dispersing and stirring knife 6. The controller is a programmable logic controller (PLC) which can accurately control the speed and start-stop of the motor 11. The operator can set appropriate motor speed parameters on the PLC through the operation panel according to the properties of different soils and pretreatment requirements to realize automatic control.

[0036] The transition shaft 7 is rotatably connected to the soil screening box 1 through a bearing seat and arranged in parallel with the rotating shaft of the dispersing and stirring knife 6. The synchronous pulley 16 in the synchronous belt 17 assembly is made of high-precision aluminum alloy material and its surface is treated by hard oxidation to improve its wear resistance and transmission accuracy. The synchronous belt 17 is made of high-strength polyurethane material with good flexibility and tensile strength, which can ensure stable power transmission and synchronous rotation between the transition shaft 7 and the rotating shaft of the dispersing and stirring knife 6, so that the lateral reciprocating frequency of the screening box 4 matches the speed of the dispersing and stirring knife 6, improving the effect of soil pretreatment.

[0037] The connecting seat 8 is slidably connected to the side wall of the soil screening box 1 and can move reciprocatingly in the transverse direction; the positioning column 12 is made of stainless steel and is slidably arranged in the mounting hole of the connecting seat 8; the handle 13 is welded to the positioning column 12; the reset spring 14 is sleeved on the positioning column 12; the positioning holes 15 on the screening box 4 are uniformly distributed on the side wall of the screening box 4; when the screening box 4 needs to be installed, the screening box 4 is inserted into the soil screening box 1 along the guide block 19, the positioning holes 15 are aligned with the positioning column 12, and under the action of the reset spring 14, the positioning column 12 is automatically inserted into the positioning hole 15, thereby realizing the quick fixing of the screening box 4 and the connecting seat 8; when the screening box 4 needs to be disassembled, the handle 13 is pulled to overcome the elastic force of the reset spring 14, so that the positioning column 12 is pulled out of the positioning hole 15, and then the screening box 4 can be taken out.

[0038] The guide groove 18 is formed along the transverse direction of the inner side wall of the soil screening box 1 and has a dovetail-shaped cross section; the guide block 19 is also designed in a dovetail-shaped structure and is tightly matched with the guide groove 18; and a layer of high-temperature-resistant and wear-resistant lubricating grease, such as molybdenum disulfide grease, is uniformly applied on the contact surface of the guide block 19 and the guide groove 18, so that the stability of the screening box 4 during the reciprocating movement in the transverse direction can be ensured, the left and right shaking or deviation of the screening box 4 can be prevented, the frictional resistance can be reduced, the movement of the screening box 4 can be smoother, and the operation noise and wear degree of the equipment can be reduced.

[0039] The crank 9 and the rocker 10 are both made of carbon steel and are hingedly connected through a pin shaft to form a crank and rocker mechanism; when the transition shaft 7 rotates, the rotary motion is converted into the transverse reciprocating linear motion of the connecting seat 8 through the transmission of the crank 9 and the rocker 10, so as to drive the screening box 4 to move reciprocatingly in the transverse direction, cooperate with the stirring action of the dispersing and stirring knife 6, and further improve the screening efficiency and uniformity of the soil.

[0040] Working principle:

[0041] Start the motor 11, the motor 11 drives the dispersing stirring knife 6 to rotate at high speed, pour the soil to be processed into the soil screening box 1 from the inlet 2, the dispersing stirring knife 6 carries out strong dispersing and stirring to the entering soil, makes soil particles fully separate, simultaneously, the transition shaft 7 is rotated with the dispersing stirring knife 6 under the drive of the synchronous belt 17 component, the rotation of the transition shaft 7 is converted into the transverse reciprocating movement of the connecting seat 8 through the crank rocker mechanism composed of the crank 9 and the rocker 10, in turn drives the screening box 4 to move transversely, in the reciprocating movement process, soil particles are constantly turned over in the screening box 4, smaller soil particles fall into the bottom of the soil screening box 1 through the sieve hole 5 and are discharged from the outlet 3, and larger particles are left in the screening box 4.

[0042] In the whole process, the components work cooperatively, through the stirring of the dispersing stirring knife 6, the screening of the screening box 4 and the transverse reciprocating movement of the screening box 4, the efficient pretreatment of soil is realized, the soil can be separated and pretreated according to different particle sizes quickly and accurately, a reliable sample is provided for the subsequent soil detection work, and the efficiency and precision of soil detection are greatly improved.

[0043] The above is only for the purpose of illustrating the present application, and it should be understood that the present application is not limited to the above embodiments, and various modifications in accordance with the present application are within the scope of the present application.

Claims

1. A soil pretreatment device for soil testing, comprising a soil sieving box (1), characterized in that, The top of the soil screening box (1) is provided with an inlet (2), the bottom is provided with an outlet (3), the inner side wall is slidably connected with a screening box (4), the bottom of the screening box (4) is provided with a plurality of screen holes (5), the soil screening box (1) is rotatably connected with a scattering and stirring knife (6) corresponding to the inlet (2), the scattering and stirring knife (6) is driven by a power device, the soil screening box (1) is rotatably connected with a transition shaft (7), the soil screening box (1) is slidably connected with a connecting seat (8), the connecting seat (8) and the screening box (4) are detachably connected, the transition shaft (7) and the connecting seat (8) are respectively hinged with a crank (9) and a rocker (10), the crank (9) and the rocker (10) are hingedly arranged between the other ends, and the transition shaft (7) and the rotating shaft of the scattering and stirring knife (6) are connected through a synchronous belt (17) assembly.

2. The soil pretreatment device for soil testing according to claim 1, characterized by The power device comprises a motor (11) fixedly connected with the soil screening box (1), the scattering and stirring knife (6) is driven by the motor (11), and the motor (11) and the controller are electrically connected.

3. The soil pretreatment device for soil testing according to claim 1, characterized by The connecting seat (8) is slidably connected with a positioning column (12), one end of the positioning column (12) is connected with a handle (13), the handle (13) and the connecting seat (8) are connected with a return spring (14), and the screening box (4) is provided with a plurality of positioning holes (15) corresponding to the positioning column (12).

4. The soil pretreatment device for soil testing according to claim 1, wherein The synchronous belt (17) assembly comprises a synchronous wheel (16) and a synchronous belt (17), the rotating shaft of the scattering and stirring knife (6) and the transition shaft (7) are both provided with the synchronous wheel (16), and the synchronous wheels (16) are provided with the synchronous belt (17) therebetween.

5. The soil pretreatment device for soil testing according to claim 1, wherein The inner side wall of the soil screening box (1) is provided with a guide groove (18) away from the connecting seat (8), and the screening box (4) is provided with a guide block (19) corresponding to the guide groove (18).

6. The soil pretreatment device for soil testing according to claim 5, wherein The cross section of the guide groove (18) is dovetail-shaped, the guide block (19) is matched with the dovetail-shaped guide groove (18), and lubricating grease is coated between the guide block (19) and the guide groove (18).

Images