Sample dissolving device and method for determining pH value of soil

Abstract

The invention discloses a sample dissolving device and method for soil pH value determination, and relates to the technical field of soil determination. Rotating shafts are fixed to the two side walls of the supporting plate and are rotationally connected to the front side wall and the rear side wall of the box body through bearings. The baffles are symmetrically fixed on the left and right inner walls of the box body; a driving rod is rotationally connected into one side wall of the box body through a bearing, the driving rod is connected with the adjacent rotating shaft through a worm and gear pair, and a driving motor is fixed to one end of the driving rod; the crushing mechanism is arranged on the upper side in the box body; the filter box is connected with the side wall of the box body through a vibration mechanism; the upper side of the outer wall of the guide hopper is fixedly connected with the inner peripheral wall of the box body, and the lower side of the guide hopper is sleeved with a mounting plate; the stirring mechanism is arranged on the lower side in the box body and is connected with the mounting plate; the soil is firstly crushed and then filtered, and the soil is screened into an aqueous solution in the filtering process, so that the dissolution contact area of the soil and the aqueous solution is increased, and the dissolution efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of soil testing technology, and more specifically to a sample dissolution device and method for determining soil pH. Background Technology

[0002] In the process of soil pH measurement, the soil sample to be tested is usually filled into a large-volume sieve tube, and then the sieve tube is placed in a container filled with water. The soil and the aqueous solution dissolve and seep out from the outside to the inside. However, because the soil sample filled into the sieve tube is too concentrated, the contact area between the soil and the aqueous solution is small, resulting in low dissolution efficiency. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a reasonably designed and easy-to-use sample dissolution device and method for soil pH measurement. The sample is first crushed, then filtered, and during the filtration process, the soil is sieved into the aqueous solution, which increases the contact area between the soil and the aqueous solution and improves the dissolution efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it comprises a housing, supporting feet, an inlet pipe, and an outlet pipe; supporting feet are fixed at the four corners of the bottom wall of the housing; an inlet pipe is inserted through one side of the top wall of the housing; and an outlet pipe is provided on the bottom wall of the housing; it further comprises: Support plates, there are several support plates, and both sides of the support plates are inclined. Two adjacent support plates are abutted together. The front and rear side walls of the support plates abut against the front and rear inner walls of the box. A rotating shaft is fixed on each side wall of the support plate. The rotating shaft is screwed to the front and rear side walls of the box through bearings. Two baffles are fixed symmetrically on the left and right inner walls of the box body. The inclined surfaces on the side walls of the baffles abut against the inclined surfaces of the adjacent support plates. The drive rod is screwed into one side wall of the housing via a bearing. The drive rod is connected to an adjacent rotating shaft via a worm gear pair. One end of the drive rod is fixed with a drive motor, which is embedded and fixed inside one side wall of the housing. The crushing mechanism is located on the upper side inside the box and is suspended on the upper side of several support plates. The filter box is located in the middle of the box body and is connected to the side wall of the box body by a vibration mechanism. The guide hopper is located on the lower side of the box body. The upper side of the outer wall of the guide hopper is fixedly connected to the inner peripheral wall of the box body. An installation plate is sleeved on the lower side of the guide hopper and is fixedly connected to the inner peripheral wall of the box body. A stirring mechanism is located on the lower side inside the box and is connected to a mounting plate. The above technical solution involves feeding soil into the interior of the chamber through the feed pipe, placing it above several support plates. The soil is then crushed by a crushing mechanism. After a period of time, the drive motor is activated, rotating the drive rod. The drive rod, through a worm gear pair, drives several connected rotating shafts to rotate, which in turn rotate the support plates until they reach a vertical position. This causes the soil to fall into the filter box. The vibration mechanism is then activated to filter the soil. The filtered soil passes through the guide hopper and enters the lower part of the chamber, falling into the aqueous solution from the bottom of the guide hopper. Finally, the stirring mechanism is activated to mix the soil and the aqueous solution.

[0005] As a further improvement of the present invention, the pulverizing mechanism includes: The fixing plate is set to abut against the inner top wall of the box. Both sides of the inside of the fixing plate are movably equipped with crushing blades, and the two crushing blades are arranged alternately up and down. The rotating rod is screwed into the center of the fixed plate by bearings. Both ends of the rotating rod are fixed with rotating wheels. The two rotating wheels are located between the two crushing blades. A toggle rod is fixed on the side of the rotating wheel adjacent to the side wall of the crushing blade. The toggle rod is movably inserted into the waist-shaped groove on the upper side of the side wall of the crushing blade. The drive mechanism is located inside the top wall of the housing and is connected to the rotating rod. With the above technical solution, during crushing, the fixed plate is moved by the drive mechanism. During the movement of the fixed plate, the drive mechanism drives the rotating rod to rotate, and the rotating rod drives the rotating wheels on both sides to rotate. During the rotation of the rotating wheels, the crushing blades are moved up and down by the actuating rod on their side wall. The crushing blades crush the soil during the up and down movement.

[0006] As a further improvement of the present invention, the driving mechanism includes: The movable blocks are two in number and are symmetrically fixed to the upper side wall of the fixed plate. The movable blocks are slidably arranged in the grooves on the top wall of the box body. A reciprocating lead screw is embedded in a groove on one side of the top wall of the housing and screwed to it by a bearing. The reciprocating lead screw is screwed to an adjacent moving block by a thread. A moving motor is fixed to one end of the reciprocating lead screw, and the moving motor is embedded in and fixed to the top wall of the housing. The rack is embedded and fixed in a rectangular cavity inside the top wall of the housing. A drive gear meshes with one side of the rack. The shaft of the drive gear passes through the strip-shaped opening on the bottom wall of the rectangular cavity and is screwed into the fixing plate by a bearing. The linkage rod is screwed into the fixed plate by a bearing. The linkage rod is connected to the rotating rod by a synchronous wheel transmission assembly. One end of the linkage rod is connected to the shaft on the drive gear by a bevel gear pair. With the above technical solution, the moving motor is started, which drives the reciprocating screw to rotate. The reciprocating screw drives the moving block to move, and the moving block drives the fixed plate to move. During the movement, the fixed plate drives the drive gear to move. During the movement, the drive gear meshes with the rack, thereby causing the drive gear to rotate. The drive gear drives the linkage rod to rotate through its shaft and bevel gear pair. The linkage rod drives the rotating rod to rotate.

[0007] As a further improvement of the present invention, sliding blocks are symmetrically fixed on one side wall of the crushing blade, and the sliding blocks are slidably disposed in the sliding groove inside the fixed plate. The above technical solution can provide vertical guidance for the shredder blades and limit their movement to prevent them from falling out of the fixed plate.

[0008] As a further improvement of the present invention, the vibration mechanism includes: The connecting blocks are four in number, and they are symmetrically arranged in pairs on the outer walls of the left and right sides of the filter box. The connecting blocks are movably inserted into the side walls of the box. The connecting plates are two in number and are respectively movably embedded in the left and right side walls of the box. The connecting blocks are located at one end inside the box and are respectively fixed to the side wall of the adjacent connecting plates. The cam is embedded in one side wall of the housing. The upper side of the cam abuts against the lower side wall of the adjacent connecting plate. Several vibration springs are symmetrically fixed on the lower side wall of the connecting plate. The lower end of the vibration springs is fixed to the inner bottom wall of the side wall of the housing. A rotating motor is fixed on one side wall of the housing, and the output shaft of the rotating motor is inserted into the side wall of the housing and is fixedly connected to the cam. The above technical solution involves starting a rotating motor, which drives a cam to rotate. When the cam's protrusion rotates to the top and contacts the connecting plate, the connecting plate drives the connecting block to move upward, which in turn drives the filter box to move upward. When the cam's protrusion rotates to the bottom, the connecting plate moves downward rapidly under the force of the vibration spring. The connecting plate, through the connecting block, drives the filter box to move downward rapidly, thereby causing the filter box to vibrate and accelerating the filtration effect of the filter box on the soil.

[0009] As a further improvement of the present invention, the side wall of the filter box is connected to the connecting block by bolts, and a cleaning door is provided on the front side of the filter box. One side of the front side wall of the cleaning door is connected to one side of the front side wall of the box body by a hinge. With the above technical solution, after a period of use, the cleaning door can be opened and the bolts between the filter box and the connecting block can be loosened, thereby separating the filter box from the connecting block for easy cleaning.

[0010] As a further improvement of the present invention, the stirring mechanism includes: The annular slide rail is slidably disposed in an annular groove on the lower surface of the mounting plate. An external gear ring is sleeved on the outer side of the annular slide rail, and a drive gear is meshed on one side of the external gear ring. The stirring motor is fixed on one side of the upper surface of the mounting plate, and the output shaft of the stirring motor is inserted into the mounting plate and fixedly connected to the drive gear. The stirring shaft consists of several stirring shafts, which are screwed onto an annular slide rail via bearings. The lower end of the stirring shaft is suspended at the bottom of the inner part of the housing, and several stirring blades are evenly and at equal angles fixed on the outer ring wall of the stirring shaft. A driven gear is fitted and fixed on the upper end of each stirring shaft. An internal gear ring is fixed on the lower surface of the mounting plate, and is sleeved on the outside of several stirring shafts, and is meshed with several driven gears. The above technical solution involves starting the stirring motor, which drives the drive gear to rotate. The drive gear then drives the outer gear ring to rotate. The outer gear ring, through a ring slide rail, drives several stirring shafts to rotate around the center of the ring slide rail. During the rotation of the stirring shaft, the driven gear at its upper end meshes with the inner gear ring, causing the stirring shaft to rotate and improving the stirring effect.

[0011] As a further improvement of the present invention, a guide strip is fixed to the upper side of one side of the baffle. One side wall of the guide strip is fixed to the inner wall of one side of the box. The cross section of the guide strip is set in a right-angled triangle, and the side wall of the guide strip away from the side wall of the box is an inclined surface. The above technical solution can prevent soil from being trapped on one side of the baffle.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. After the soil enters the box, it is crushed by the crushing mechanism and then filtered through the filter box. During the filtration process, the soil is sieved into the aqueous solution, which increases the contact area between the soil and the aqueous solution and improves the dissolution efficiency. 2. When filtering soil, the filter box can be moved up and down by a vibration mechanism, which speeds up the filtration effect on the soil. 3. A stirring mechanism is installed on the lower side of the inside of the box. During the mixing process, the soil and water solution can be mixed by the stirring mechanism, which accelerates the thoroughness and speed of the mixing of soil and water solution. 4. During crushing, several support plates can collide with each other to form a whole plate, which facilitates crushing. After crushing, the support plates can be rotated by the cooperation of the drive motor, drive rod, rotating shaft and worm gear pair, which facilitates the unloading of the crushed soil. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0015] Figure 3 for Figure 2 Enlarged view of section A.

[0016] Figure 4 This is an exploded view of the crushing mechanism in this invention.

[0017] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0018] Figure 6 This is an exploded view of the filter box and vibration mechanism in this invention.

[0019] Figure 7 for Figure 6 Enlarged view of section C.

[0020] Figure 8 This is an exploded view of the mounting plate and crushing mechanism in this invention.

[0021] Explanation of reference numerals in the attached figures: 1. Box body; 2. Support legs; 3. Feed pipe; 4. Discharge pipe; 5. Support plate; 6. Rotating shaft; 7. Baffle; 8. Drive rod; 9. Drive motor; 10. Crushing mechanism; 10-1. Fixed plate; 10-2. Crushing blade; 10-3. Rotating rod; 10-4. Rotating wheel; 10-5. Actuating rod; 10-6. Drive mechanism; 10-6-1. Moving block; 10-6-2. Reciprocating screw; 10-6-3. Moving motor; 10-6-4. Rack; 10-6-5. Drive gear; 10-6-6. Linkage rod; 11. Filter box; 12. Vibration mechanism; 12-1. Connecting block; 12-2. Connecting plate; 12-3. Cam; 12-4. Vibration spring; 12-5. Rotating motor; 13. Guide hopper; 14. Mounting plate; 15. Stirring mechanism; 15. Circular slide rail; 15-1. External gear ring; 15-2. Drive gear; 15-3. 15-4 stirring motor, 15-5 stirring shaft, 15-6 stirring blade, 15-7 internal gear ring, 15-8 driven gear, 16 sliding block, 17 cleaning door, 18 guide bar. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1: like Figures 1-8 As shown, this embodiment includes a housing 1, supporting legs 2, a feed pipe 3, and a discharge pipe 4. Supporting legs 2 are welded and fixed to the four corners of the outer bottom wall of the housing 1. The feed pipe 3 is inserted through the right side of the top wall of the housing 1, and the discharge pipe 4 is provided on the bottom wall of the housing 1. It also includes: Support plate 5, there are several support plates 5, and both sides of the support plates 5 are inclined. Two adjacent support plates 5 are abutted together. The front and rear side walls of the support plates 5 abut against the front and rear inner walls of the box body 1. Rotating shafts 6 are welded and fixed on both side walls of the support plates 5. The rotating shafts 6 are screwed onto the front and rear side walls of the box body 1 through bearings. Two baffles 7 are symmetrically welded and fixed to the left and right inner walls of the box 1. The inclined surface of the side wall of the baffle 7 abuts against the inclined surface of the adjacent support plate 5. A guide strip 18 is welded and fixed to the upper side of the right baffle 7. The right side wall of the guide strip 18 is fixed to the inner wall of the right side of the box 1. The cross section of the guide strip 18 is set in a right triangle. The side wall of the guide strip 18 away from the side wall of the box 1 is an inclined surface, which can prevent soil from being stuck on the baffle 7 on one side. The drive rod 8 is screwed into the front side wall of the housing 1 via a bearing. The drive rod 8 is connected to the adjacent rotating shaft 6 via a worm gear pair. The left end of the drive rod 8 is fixed with a drive motor 9, which is embedded and fixed in the left side wall of the housing 1. The crushing mechanism 10 is located on the upper side inside the housing 1 and is suspended on the upper side of several support plates 5. The filter box 11 is located in the middle of the box body 1 and is connected to the side wall of the box body 1 through a vibration mechanism 12. The guide hopper 13 is located on the lower side inside the box body 1. The upper side of the outer wall of the guide hopper 13 is welded and fixed to the inner peripheral wall of the box body 1. The lower side of the guide hopper 13 is fitted with an installation plate 14, which is fixedly connected to the inner peripheral wall of the box body 1. The stirring mechanism 15 is located on the lower side inside the housing 1 and is connected to the mounting plate 14.

[0024] Example 2: See Figure 2-5 As shown, based on Embodiment 1, the crushing mechanism 10 includes: A fixing plate 10-1 is provided, which abuts against the inner top wall of the housing 1. Two crushing blades 10-2 are movably arranged on both sides inside the fixing plate 10-1, and the two crushing blades 10-2 are arranged alternately up and down. Sliding blocks 16 are symmetrically welded and fixed on one side wall of the crushing blades 10-2. The sliding blocks 16 are slidably arranged in the sliding groove on the inner side of the fixing plate 10-1, which can provide vertical guidance for the crushing blades 10-2 and limit the crushing blades 10-2 to a certain extent to prevent the crushing blades 10-2 from falling out of the fixing plate 10-1. The rotating rod 10-3 is screwed into the center of the fixed plate 10-1 via a bearing. Both ends of the rotating rod 10-3 are welded and fixed with rotating wheels 10-4. The two rotating wheels 10-4 are located between the two crushing blades 10-2. A toggle rod 10-5 is welded and fixed to one side of the rotating wheel 10-4 adjacent to one side wall of the crushing blade 10-2. The toggle rod 10-5 is movably inserted into the waist-shaped groove on the upper side of one side wall of the crushing blade 10-2. The drive mechanism 10-6 is located inside the top wall of the housing 1 and is connected to the rotating rod 10-3.

[0025] Example 3: See Figure 4 , Figure 5 As shown, based on Embodiment 2, the drive mechanism 10-6 includes: The movable block 10-6-1 consists of two blocks, which are symmetrically fixed to the upper side wall of the fixed plate 10-1. The movable block 10-6-1 is slidably disposed in the groove on the top wall of the inner wall of the box 1. A reciprocating lead screw 10-6-2 is embedded in a groove on one side of the top wall of the housing 1 and screwed to it by a bearing. The reciprocating lead screw 10-6-2 is screwed to the adjacent moving block 10-6-1 by a thread. A moving motor 10-6-3 is fixed to the left end of the reciprocating lead screw 10-6-2. The moving motor 10-6-3 is embedded in and fixed to the top wall of the housing 1. Rack 10-6-4 is embedded and welded to a rectangular cavity in the top wall of housing 1. A drive gear 10-6-5 meshes with the front side of rack 10-6-4. The shaft of drive gear 10-6-5 passes through the strip-shaped opening on the bottom wall of the rectangular cavity and is screwed into the fixing plate 10-1 by bearing. Linkage rod 10-6-6 is screwed into fixed plate 10-1 via bearing. Linkage rod 10-6-6 is connected to rotating rod 10-3 via synchronous wheel transmission assembly. The right end of linkage rod 10-6-6 is connected to shaft on drive gear 10-6-5 via bevel gear pair.

[0026] Example 4: See Figure 6 , Figure 7 As shown, based on Embodiment 1, the vibration mechanism 12 includes: Connecting blocks 12-1, there are four connecting blocks 12-1, and they are symmetrically arranged in pairs on the outer walls of the left and right sides of the filter box 11. The connecting blocks 12-1 are movably inserted into the side walls of the box body 1. The side walls of the filter box 11 are connected to the connecting blocks 12-1 by bolts. A cleaning door 17 is provided on the front side of the filter box 11. One side of the front side wall of the cleaning door 17 is connected to one side of the front side wall of the box body 1 by a hinge. After a period of use, the cleaning door 17 is opened and the bolts between the filter box 11 and the connecting blocks 12-1 are loosened, so that the filter box 11 and the connecting blocks 12-1 can be separated for easy cleaning. Connecting plate 12-2, there are two connecting plates 12-2, and they are respectively movably embedded in the left and right side walls of the box 1. The end of the connecting block 12-1 located inside the box 1 is welded and fixed to the side wall of the adjacent connecting plate 12-2. Cam 12-3 is embedded in the left side wall of housing 1. The upper side of cam 12-3 abuts against the lower side wall of the adjacent connecting plate 12-2. Several vibration springs 12-4 are symmetrically welded and fixed on the lower side wall of the connecting plate 12-2. The lower end of the vibration springs 12-4 is welded and fixed to the inner bottom wall of the side wall of housing 1. The rotating motor 12-5 is fixed on one side wall of the housing 1. The output shaft of the rotating motor 12-5 is inserted into the side wall of the housing 1, and the output shaft of the rotating motor 12-5 is fixedly connected to the cam 12-3.

[0027] Example 5: See Figure 2 , Figure 8 As shown, based on Embodiment 1, the stirring mechanism 15 includes: The annular slide rail 15-1 is slidably disposed in the annular groove on the lower surface of the mounting plate 14. An external gear ring 15-2 is sleeved on the outer side of the annular slide rail 15-1, and a drive gear 15-3 is meshed on the left side of the external gear ring 15-2. The stirring motor 15-4 is fixed to the left side of the upper surface of the mounting plate 14 by bolts. The output shaft of the stirring motor 15-4 is inserted into the mounting plate 14 and is fixedly connected to the drive gear 15-3. The stirring shaft 15-5 consists of several shafts. The stirring shaft 15-5 is screwed onto the annular slide rail 15-1 via bearings. The lower end of the stirring shaft 15-5 is suspended at the inner bottom of the housing 1. Several stirring blades 15-6 are equally distributed and welded to the outer ring wall of the stirring shaft 15-5 at equal angles. A driven gear 15-8 is fitted and welded to the upper end of each stirring shaft 15-5. The internal gear ring 15-7 is welded and fixed to the lower surface of the mounting plate 14. The internal gear ring 15-7 is sleeved on the outside of several stirring shafts 15-5, and the internal gear ring 15-7 is meshed with several driven gears 15-8.

[0028] In using this invention, soil is introduced into the housing 1 through the feed pipe 3 and positioned above several support plates 5. Then, the fixed plate 10-1 is moved by the drive mechanism 10-6. During this movement, the moving motor 10-6-3 is activated, which in turn drives the reciprocating screw 10-6-2 to rotate. The reciprocating screw 10-6-2 then moves the moving block 10-6-1, which in turn moves the fixed plate 10-1. During this movement, the fixed plate 10-1 drives the drive gear 10-6-5 to move. The drive gear 10-6-5 meshes with the rack 10-6-4 during this movement, thereby causing the drive... The drive gear 10-6-5 rotates, which in turn drives the linkage rod 10-6-6 to rotate via its shaft and bevel gear pair. The linkage rod 10-6-6 drives the rotating rod 10-3 to rotate, which in turn drives the rotating wheels 10-4 on both sides to rotate. During rotation, the rotating wheels 10-4 drive the crushing blades 10-2 to move up and down via the actuating rod 10-5 on their side wall. The crushing blades 10-2 crush the soil during this up-and-down movement. After a period of time, the drive motor 9 is started, which drives the drive rod 8 to rotate. The drive rod 8 drives several connected rotating shafts 6 to rotate via a worm gear pair, which in turn drives the support plate 5 to rotate. The movement causes the support plate 5 to rotate to a vertical position, allowing the soil to fall into the filter box 11. Then, the rotating motor 12-5 is activated, driving the cam 12-3 to rotate. When the protrusion of the cam 12-3 rotates to the top and contacts the connecting plate 12-2, the connecting plate 12-2 drives the connecting block 12-1 to move upwards. The connecting block 12-1 then drives the filter box 11 to move upwards. When the protrusion of the cam 12-3 rotates to the bottom, the connecting plate 12-2 moves rapidly downwards under the force of the vibration spring 12-4. The connecting plate 12-2, through the connecting block 12-1, drives the filter box 11 to move rapidly downwards, causing the filter box 11 to vibrate. The rapid filtration box 11 filters the soil. After filtration, the soil passes through the guide hopper 13 and enters the lower part of the box body 1. The soil then falls into the aqueous solution from the lower part of the guide hopper 13. The stirring motor 15-4 is then started, which drives the drive gear 15-3 to rotate. The drive gear 15-3 drives the outer gear ring 15-2 to rotate. The outer gear ring 15-2 drives several stirring shafts 15-5 to rotate around the center of the annular slide rail 15-1 through the annular slide rail 15-1. During the rotation of the stirring shaft 15-5, the driven gear 15-8 at the upper end of the stirring shaft 15-5 meshes with the inner gear ring 15-7, thereby causing the stirring shaft 15-5 to rotate and improving the stirring effect.

[0029] Compared with the prior art, the beneficial effects of this specific embodiment are as follows: 1. After the soil enters the box 1, it is crushed by the crushing mechanism 10 and then filtered by the filter box 11. During the filtration process, the soil is screened into the aqueous solution, which increases the contact area between the soil and the aqueous solution and improves the dissolution efficiency. 2. When filtering soil, the filter box 11 can be driven to shake up and down by the vibration mechanism 12, which speeds up the filtration effect of the filter box 11 on the soil. 3. A stirring mechanism 15 is provided on the lower side inside the box 1. During the mixing process, the soil and water solution can be mixed by the stirring mechanism 15, which accelerates the fullness and speed of the mixing of soil and water solution. 4. During crushing, several support plates 5 can abut against each other to form a whole plate, which facilitates crushing. After crushing, the support plates 5 can be rotated by the cooperation of the drive motor 9, drive rod 8, rotating shaft 6 and worm gear pair, which facilitates the unloading of the crushed soil.

[0030] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A sample dissolution device for determining soil pH, comprising a housing (1), support feet (2), an inlet pipe (3), and an outlet pipe (4), wherein support feet (2) are fixed at the four corners of the bottom wall of the housing (1), an inlet pipe (3) is inserted through one side of the top wall of the housing (1), and an outlet pipe (4) is provided on the bottom wall of the housing (1); characterized in that: It also includes: Support plate (5), there are several support plates (5), and both sides of the support plates (5) are inclined. Two adjacent support plates (5) are abutted to each other. The front and rear side walls of the support plates (5) abut to the front and rear inner walls of the box body (1). Rotating shafts (6) are fixed on both side walls of the support plates (5). The rotating shafts (6) are screwed to the front and rear side walls of the box body (1) through bearings. Two baffles (7) are fixed symmetrically on the left and right inner walls of the box (1). The inclined surface on the side wall of the baffle (7) is set to abut against the inclined surface of the adjacent support plate (5). The drive rod (8) is screwed into the side wall of the housing (1) by a bearing. The drive rod (8) is connected to the adjacent rotating shaft (6) by a worm gear pair. One end of the drive rod (8) is fixed with a drive motor (9). The drive motor (9) is embedded and fixed in the side wall of the housing (1). The crushing mechanism (10) is located on the upper side inside the box (1) and is suspended on the upper side of several support plates (5); The filter box (11) is located in the middle of the box body (1), and the filter box (11) is connected to the side wall of the box body (1) through a vibration mechanism (12). The guide hopper (13) is located on the lower side inside the box (1). The upper side of the outer wall of the guide hopper (13) is fixedly connected to the inner peripheral wall of the box (1). The lower side of the guide hopper (13) is fitted with an installation plate (14), which is fixedly connected to the inner peripheral wall of the box (1). The stirring mechanism (15) is located on the lower side inside the box (1) and is connected to the mounting plate (14).

2. The sample dissolution device for soil pH measurement according to claim 1, characterized in that: The crushing mechanism (10) includes: The fixing plate (10-1) is set to abut against the inner top wall of the box (1). The two sides inside the fixing plate (10-1) are movably provided with crushing blades (10-2), and the two crushing blades (10-2) are arranged alternately up and down. A rotating rod (10-3) is screwed into the center of a fixed plate (10-1) via a bearing. Two rotating wheels (10-4) are fixed at both ends of the rotating rod (10-3). The two rotating wheels (10-4) are located between two crushing blades (10-2). A toggle rod (10-5) is fixed on one side of the rotating wheel (10-4) adjacent to one side wall of the crushing blade (10-2). The toggle rod (10-5) is movably inserted into the waist-shaped groove on the upper side of one side wall of the crushing blade (10-2). The drive mechanism (10-6) is located inside the top wall of the housing (1) and is connected to the rotating rod (10-3).

3. The sample dissolution device for soil pH measurement according to claim 2, characterized in that: The drive mechanism (10-6) includes: The movable block (10-6-1) consists of two blocks, which are symmetrically fixed to the upper side wall of the fixed plate (10-1). The movable block (10-6-1) is slidably disposed in the groove on the top wall of the box (1). A reciprocating lead screw (10-6-2) is embedded in a groove on one side of the top wall of the housing (1) and screwed to it by a bearing. The reciprocating lead screw (10-6-2) is screwed to the adjacent moving block (10-6-1) by a thread. A moving motor (10-6-3) is fixed at one end of the reciprocating lead screw (10-6-2). The moving motor (10-6-3) is embedded in and fixed in the top wall of the housing (1). The rack (10-6-4) is embedded and fixed in a rectangular cavity in the top wall of the housing (1). A drive gear (10-6-5) meshes with one side of the rack (10-6-4). The shaft on the drive gear (10-6-5) passes through the strip opening on the bottom wall of the rectangular cavity and is screwed into the fixing plate (10-1) by a bearing. The linkage rod (10-6-6) is screwed into the fixed plate (10-1) by bearings. The linkage rod (10-6-6) is connected to the rotating rod (10-3) through the synchronous wheel transmission assembly. One end of the linkage rod (10-6-6) is connected to the shaft on the drive gear (10-6-5) through the bevel gear pair.

4. A sample dissolution device for soil pH measurement according to claim 2, characterized in that: The crushing blade (10-2) has a sliding block (16) symmetrically fixed on one side wall. The sliding block (16) is slidably disposed in the groove inside the fixed plate (10-1).

5. The sample dissolution device for soil pH measurement according to claim 1, characterized in that: The vibration mechanism (12) comprises: Connecting blocks (12-1), there are four connecting blocks (12-1), and they are symmetrically arranged in pairs on the outer walls of the left and right sides of the filter box (11). The connecting blocks (12-1) are movably inserted into the two side walls of the box body (1). Connecting plate (12-2), there are two connecting plates (12-2), and they are respectively movably embedded in the left and right side walls of the box (1). The end of the connecting block (12-1) located inside the box (1) is fixed to the side wall of the adjacent connecting plate (12-2). Cam (12-3), the cam (12-3) is embedded in one side wall of the box (1), the upper side of the cam (12-3) abuts against the lower side wall of the adjacent connecting plate (12-2), and several vibration springs (12-4) are symmetrically fixed on the lower side wall of the connecting plate (12-2), and the lower end of the vibration springs (12-4) is fixed on the inner bottom wall of the side wall of the box (1); The rotating motor (12-5) is fixed on one side wall of the housing (1). The output shaft of the rotating motor (12-5) is inserted into the side wall of the housing (1), and the output shaft of the rotating motor (12-5) is fixedly connected to the cam (12-3).

6. The sample dissolution device for soil pH measurement according to claim 1, characterized in that: The side wall of the filter box (11) is connected to the connecting block (12-1) by bolts. A cleaning door (17) is provided on the front side of the filter box (11). One side of the front side wall of the cleaning door (17) is connected to one side of the front side wall of the box body (1) by a hinge.

7. The sample dissolution device for soil pH determination according to claim 1, characterized in that: The stirring mechanism (15) includes: The annular slide rail (15-1) is slidably disposed in the annular groove on the lower surface of the mounting plate (14). An external gear ring (15-2) is sleeved on the outer side of the annular slide rail (15-1), and a drive gear (15-3) is meshed on one side of the external gear ring (15-2). A stirring motor (15-4) is fixed on one side of the upper surface of the mounting plate (14). The output shaft of the stirring motor (15-4) is inserted into the mounting plate (14). The output shaft of the stirring motor (15-4) is fixedly connected to the drive gear (15-3). A stirring shaft (15-5) is provided. There are several stirring shafts (15-5). The stirring shafts (15-5) are screwed onto the annular slide rail (15-1) through bearings. The lower end of the stirring shaft (15-5) is suspended at the inner bottom of the box (1). Several stirring blades (15-6) are evenly and at equal angles fixed on the outer ring wall of the stirring shaft (15-5). A driven gear (15-8) is sleeved and fixed on the upper end of the stirring shaft (15-5). The internal gear ring (15-7) is fixed on the lower surface of the mounting plate (14). The internal gear ring (15-7) is sleeved on the outside of several stirring shafts (15-5), and the internal gear ring (15-7) is meshed with several driven gears (15-8).

8. The sample dissolution device for soil pH determination according to claim 1, characterized in that: A guide strip (18) is fixed on the upper side of the baffle (7) on one side. One side wall of the guide strip (18) is fixed on the inner wall of the box (1) on one side. The cross section of the guide strip (18) is set in a right triangle, and the side wall of the guide strip (18) away from the side wall of the box (1) is an inclined surface.

9. A sample dissolution method for soil pH determination according to claim 1, characterized in that: Soil enters the interior of the box (1) through the feed pipe (3) and is located on the upper side of several support plates (5). Then, the soil is crushed by the crushing mechanism (10). After a period of time, the drive motor (9) is started. The drive motor (9) drives the drive rod (8) to rotate. The drive rod (8) drives several connected rotating shafts (6) to rotate through the worm gear pair. The rotating shafts (6) drive the support plates (5) to rotate, so that the support plates (5) rotate to a vertical state, thereby causing the soil to fall into the filter box (11). Then, the vibration mechanism (12) is started. The vibration mechanism (12) filters the soil. After the filtered soil passes through the guide hopper (13), it enters the lower side of the interior of the box (1) and causes the soil to fall into the aqueous solution from the lower side of the guide hopper (13). Then, the stirring mechanism (15) is started to mix the soil and the aqueous solution.

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