Soil pH and total salt measuring device

Abstract

The utility model relates to a soil pH and total salt measuring device which comprises a grinding part, a solution tank and a soil pH and total salt detecting part, the grinding part comprises a fixed seat and a grinding roller, a grinding channel is formed in the fixed seat, the grinding roller moves around a conical surface along the axis in the grinding channel, deionized water is contained in the solution tank so as to separate out substances in soil, and the solution tank is used for detecting the soil pH and total salt. The detection end of the soil pH and total salt detection part is located in the solution tank to measure the pH of a solution and precipitated total salt components, and when the roller shaft surface of the grinding roller makes contact with the grinding channel for grinding, an opening is always reserved in the position, located between the grinding roller and the grinding channel, of the other side where the roller shaft surface of the grinding roller makes contact with the grinding channel for soil to be ground to enter; the technical problem that the grinding fineness of a traditional axial soil grinding device and the entering difficulty of to-be-ground soil cannot be obtained at the same time is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of soil detection, more specifically to a soil pH and total salt determination device. BACKGROUND

[0002] In the prior art, soil pH and total salt determination is used to evaluate the physicochemical properties, fertility and influence on plant growth of soil; in order to improve the detection accuracy, the soil particles are usually finely ground before the soil suspension is prepared.

[0003] The traditional axial soil grinding has a grinding roller rotatably connected to the inside of the grinding channel, and the gap between the two is matched, the gap is too large to affect the fineness of soil grinding, and the gap is too small to facilitate the continuous input of the soil to be ground.

[0004] Therefore, how to provide a new soil pH and total salt determination device to ensure the fineness of soil grinding while facilitating the entry of soil to be ground is a problem that needs to be solved by those skilled in the art. SUMMARY

[0005] Therefore, the utility model provides a soil pH and total salt determination device, aiming to solve the technical problem that the fineness of the traditional axial soil grinding device and the difficulty of the entry of the soil to be ground cannot be achieved.

[0006] A soil pH and total salt determination device, comprising:

[0007] The grinding part comprises a fixed seat and a grinding roller, the fixed seat is provided with a conical grinding channel passing through the upper and lower parts; the grinding roller is located in the inside of the grinding channel, the bottom center of the grinding roller is rotatably connected to the inner wall of the grinding channel through a connecting piece, and the outer wall surface of the grinding roller is a conical surface, a plurality of annular grinding ridges are arranged on the outer wall surface of the grinding roller, the grinding channel is provided with a grinding groove along the circumferential movement path of the grinding ridges, and the grinding groove and the grinding ridges have a grinding gap therebetween;

[0008] The solution tank has a feeding port at the upper end and is communicated with the lower end outlet of the grinding channel, and the solution tank contains deionized water to precipitate substances in the soil;

[0009] The soil pH and total salt detection part has a detection end located in the inside of the solution tank to measure the pH of the solution and the precipitated total salt components.

[0010] Through the above technical scheme, the utility model discloses a grinding roller is arranged in the grinding channel, and the grinding roller is rotatably connected with the inner wall of the grinding channel through the connecting piece and moves in the circumferential direction, so that the roller shaft surface of the grinding roller is always reserved with an opening between the grinding roller and the grinding channel on the other side of the contact between the two when the roller shaft surface contacts and grinds the grinding channel, which facilitates the entry of the soil to be ground and does not affect the grinding accuracy of the soil, and has the characteristics of facilitating the entry of the soil to be ground and high grinding accuracy.

[0011] Preferably, the diameter of the inlet end of the grinding channel is greater than the diameter of the outlet end of the grinding channel.

[0012] Preferably, the grinding roller is in the shape of an inverted truncated cone, and the small end thereof corresponds to the outlet of the grinding channel.

[0013] Preferably, the connecting piece is a fixed support shaft and a plurality of connecting rods, the connecting rods are arranged in the radial direction of the grinding channel and are fixedly connected at one end to the inner wall surface of the outlet end of the grinding channel, and are fixedly connected at the other end to the lower end of the fixed support shaft perpendicularly, and the center point of the small end of the grinding roller is rotatably connected to the top end of the fixed support shaft.

[0014] Preferably, the utility model also comprises a sample inlet tube, one end of the sample inlet tube is in communication with the upper end inlet of the grinding channel.

[0015] Preferably, the utility model also comprises a servo motor, the fixed end of the servo motor is fixedly connected to the inner wall surface of the sample inlet tube, the power output end of the servo motor is arranged downward and is fixedly connected with a distribution plate, the top end of the grinding roller along the axial direction is fixedly connected with a connecting shaft, the connecting shaft is rotatably connected to the distribution plate, and the distribution plate is in communication with the upper end inlet of the grinding channel.

[0016] Preferably, the upper end of the shell of the servo motor is fixedly connected with a conical guide cap to guide the soil to the circumferential direction of the distribution plate.

[0017] Preferably, the axial section of the grinding convex strip is conical, a plurality of grinding convex strips are arranged at equal intervals along the outer wall surface of the grinding roller, and the axial section of the grinding channel is conical and is adapted to the shape of the grinding convex strip.

[0018] Preferably, a material guiding spiral groove is arranged between the two adjacent grinding convex strips.

[0019] Preferably, the soil pH and total salt detection part comprises a salt detection sensor and a pH detection sensor. Through the above technical scheme, compared with the prior art, the utility model discloses a soil pH and total salt determination device, which has the following beneficial effects:

[0020] 1. The cone-shaped grinding channel has a large end at the top that provides ample grinding space for larger soil particles that have just entered the grinding channel, while the middle and small ends provide a more compact space for smaller soil particles that have entered the grinding channel in the later stages, allowing them to be squeezed and ground more thoroughly.

[0021] 2. The grinding tank increases the grinding area of ​​the grinding channel, and at the same time facilitates the residence of the particles to be ground in the grinding tank, avoiding the particles to be ground from falling too fast in the grinding channel and reducing the grinding quality. Attached Figure Description

[0022] Figure 1 A simplified structural diagram of a soil pH and total salinity measuring device provided by this utility model;

[0023] Figure 2 A partial cross-sectional view of the grinding part provided by this utility model;

[0024] Figure 3 A top view of the grinding part provided by this utility model;

[0025] Figure 4 for Figure 3 AA section view;

[0026] Figure 5 A front view of the grinding roller provided by this utility model;

[0027] Figure 6 for Figure 5 BB cross-sectional view.

[0028] The components are as follows: 1-Grinding section; 2-Solution tank; 3-Soil pH and total salinity detection section; 11-Fixed base; 12-Grinding roller; 13-Receiving tube; 14-Servo motor; 15-Distribution plate; 16-Top cap; 31-Salinity detection sensor; 32-pH detection sensor; 111-Grinding channel; 112-Grinding tank; 113-Fixed support shaft; 114-Connecting rod; 121-Grinding protrusion; 122-Connecting shaft; 123-Guiding spiral groove; 124-Rotating support shaft; 125-Rotating sleeve. Detailed Implementation

[0029] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0030] See appendix Figures 1-6 This utility model discloses a soil pH and total salt determination device, including: a grinding part 1, a solution tank 2 and a soil pH and total salt detection part 3;

[0031] The grinding part 1 comprises a fixed seat 11 and a grinding roller 12, the fixed seat 11 is provided with a conical grinding channel 111 penetrating from top to bottom, the grinding roller 12 is located inside the grinding channel 111, the bottom center of the grinding roller 12 is rotationally connected to the inner wall of the grinding channel 111 through a connecting piece, and the outer wall surface of the grinding roller 12 is a conical surface, a plurality of annular grinding ridges 121 are arranged on the outer wall surface of the grinding roller 12 in an axial direction, and a grinding groove 112 is formed in the inner wall of the grinding channel 111 along the circumferential movement path of the grinding ridges 121, and a grinding gap is formed between the grinding groove 112 and the grinding ridges 121.

[0032] The upper end of the solution tank 2 is provided with a feeding port and is communicated with the lower end outlet of the grinding channel, and deionized water is contained in the solution tank 2 to precipitate substances in the soil.

[0033] The detection end of the soil pH and total salt detection part 3 is located inside the solution tank 2 to measure the solution pH and the precipitated total salt components.

[0034] Specifically, the grinding gap is between 0.5mm and 1mm. More specifically, the stones and other impurities in the particles to be ground need to be screened out before entering the grinding channel 111.

[0035] In some embodiments, the inlet end diameter of the grinding channel 111 is greater than the outlet end diameter of the grinding channel 111.

[0036] In other embodiments, the grinding roller 12 is in the shape of an inverted conical frustum, and the small end thereof corresponds to the outlet of the grinding channel 111.

[0037] In some embodiments, the connecting piece is a fixed support shaft 113 and a plurality of connecting rods 114, the connecting rods 114 are arranged in a radial direction of the grinding channel 111 and are fixedly connected to the inner wall surface of the outlet end of the grinding channel 111 at one end, and are fixedly connected to the lower end of the fixed support shaft 113 at the other end, and the center point of the small end of the grinding roller 12 is rotationally connected to the top end of the fixed support shaft 113.

[0038] Specifically, the small end of the grinding roller 12 is fixedly connected with a rotating support shaft 124 in a radial direction thereof, one end of the rotating support shaft 124 away from the grinding roller 12 is fixedly connected with a rotating sleeve 125, the top end of the fixed support shaft 113 is fixedly connected with a support ball, and the rotating sleeve 125 is rotationally connected to the support ball.

[0039] More specifically, the axis of the grinding roller 12 moves along a conical surface, and the tip of the conical surface is the rotation center of the small end of the grinding roller 12.

[0040] In other embodiments, a sample inlet tube 13 is further included, one end of the sample inlet tube 13 is communicated with the upper end inlet of the grinding channel 111.

[0041] In one embodiment, a servo motor 14 is further included, a fixed end of the servo motor 14 is fixedly connected with an inner wall surface of the sample feeding pipe 13, a power output end of the servo motor 14 is arranged downward and fixedly connected with a distribution plate 15, a top end of the grinding roller 12 along an axial direction is fixedly connected with a connecting shaft 122, the connecting shaft 122 is rotationally connected with the distribution plate 15, and an upper end entrance is formed between the distribution plate and the grinding channel 111. Thus, when the servo motor 14 drives the grinding roller 12 to perform a circular motion, the grinding roller 12, which is rotationally connected with the distribution plate 15, can also rotate, the grinding contact surface is increased, and the service life of the equipment is increased.

[0042] In one embodiment, a conical guide cap 16 is fixedly connected with an upper end of a shell of the servo motor 14 to guide the soil to the distribution plate 15 in a circumferential direction. Thus, the soil to be ground is conveniently accumulated above the shell of the servo motor 14.

[0043] In some embodiments, an axial section of the grinding convex strip 121 is conical, a plurality of grinding convex strips 121 are arranged at equal intervals along an outer wall surface of the grinding roller 12, and a plurality of grinding grooves 112 are conical in an axial section of the grinding channel 111 and are adapted to the shape of the grinding convex strip 121.

[0044] In this embodiment, a material guiding spiral groove 123 is formed between two adjacent grinding convex strips 121. Thus, in the process of rotation of the grinding roller 12, the material guiding spiral groove 123 drives the ground soil to move downward, so that the material accumulation is avoided.

[0045] Specifically, the maximum outer contour of the material guiding spiral groove 123 is gap-fitted with the grinding channel 111, and the gap is between 0.5 mm and 1 mm.

[0046] In other specific embodiments, the soil pH and total salt detection part 3 includes a salt detection sensor 31 and a pH detection sensor 32.

[0047] The specific principle and use method of the soil pH and total salt determination device provided in the embodiment are as follows:

[0048] 1. The soil to be ground enters from a top end of the sample feeding pipe 13, is scattered on a top end surface of the grinding roller 12 under the action of the guide cap 16, and is in the opening gap between the grinding roller 12 and the grinding channel 111;

[0049] 2. The servo motor 14 rotates, the distribution plate 15 drives the grinding roller 12 to move along a conical surface, in the process of conical movement of the grinding roller 12, the grinding roller 12 extrudes and grinds one side of the grinding roller 12 which is inclined to the side wall surface of the grinding channel 111, and the other side is open to facilitate the entry of the soil to be ground, in the process of rotation of the servo motor 14, the grinding roller 12 moves along the axial line of the side wall surface of the grinding channel 111 and grinds the soil to be ground on the side wall surface;

[0050] 3. In the process of the grinding roller 12 moving along a conical surface driven by the servo motor 14, the grinding roller 12 also rotates, and in the process of the rotation, the material guiding spiral groove 123 drives the ground soil to move to the bottom end of the grinding channel 111 until it is discharged into the solution tank 2;

[0051] 4. The ground soil is soaked in the deionized water in the solution tank 2 to be separated out;

[0052] 5. The soil pH and total salt detection part 3 detects the salt content and pH value of the mixed solution of the soil and the deionized water through the salt detection sensor 31 and the pH detection sensor 32 located in the solution tank 2.

[0053] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for measuring pH and total salt of soil, characterized by, The utility model relates to a soil pH and total salt detection device, which comprises the following parts: A grinding part (1) comprises a fixed seat (11) and a grinding roller (12), the fixed seat (11) is provided with a conical grinding channel (111) penetrating from top to bottom, the grinding roller (12) is located in the grinding channel (111), the bottom end of the grinding roller (12) is rotationally connected to the inner wall of the grinding channel (111) through a connecting piece, the outer wall of the grinding roller (12) is a conical surface, a plurality of annular grinding ridges (121) are arranged on the outer wall of the grinding roller (12) in an axial direction, the inner wall of the grinding channel (111) is provided with a grinding groove (112) along the circumferential movement path of the grinding ridges (121), and the grinding groove (112) and the grinding ridges (121) are connected through a grinding gap; A solution tank (2) is provided with an inlet at the upper end and is connected to the lower end of the grinding channel (111), and the solution tank (2) is filled with deionized water for soil detection; A soil pH and total salt detection part (3) is arranged in the solution tank (2) to measure the pH and total salt content of the solution.

2. The device for measuring pH and total salt of soil according to claim 1, characterized in that, The diameter of the inlet of the grinding channel (111) is larger than the diameter of the outlet of the grinding channel (111).

3. The device for measuring pH and total salt of soil according to claim 2, characterized in that, The grinding channel (111) and the grinding roller (12) are both inverted conical, and the small end of the grinding roller (12) corresponds to the outlet of the grinding channel (111).

4. The device for measuring pH and total salt of soil according to claim 3, characterized in that, The connecting piece is a plurality of connecting rods (114) and a fixed support shaft (113), the connecting rods (114) are arranged in a radial direction of the grinding channel (111) and are fixedly connected to the inner wall of the outlet of the grinding channel (111), the fixed support shaft (113) is arranged in an axial direction of the grinding channel (111) and is vertically fixed to the other end of the connecting rods (114), and the center point of the small end of the grinding roller (12) is rotationally connected to the top end of the fixed support shaft (113).

5. The device for measuring pH and total salt of soil according to claim 3, characterized in that, A sample inlet pipe (13) is arranged, one end of the sample inlet pipe (13) is connected to the upper end of the grinding channel (111).

6. The device for measuring pH and total salt of soil according to claim 5, characterized in that, A servo motor (14) is arranged, the fixed end of the servo motor (14) is fixedly connected to the inner wall of the sample inlet pipe (13), the power output end of the servo motor (14) is arranged downward and is fixedly connected to a distribution plate (15), the top end of the grinding roller (12) is fixedly connected to a connecting shaft (122) in the axial direction, the connecting shaft (122) is rotationally connected to the distribution plate (15), and the distribution plate (15) is connected to the upper end of the grinding channel (111).

7. The device for measuring pH and total salt of soil according to claim 6, characterized in that, A conical guide cap (16) is fixedly connected to the upper end of the shell of the servo motor (14) to guide the soil to the circumferential direction of the distribution plate (15).

8. The device for measuring pH and total salt of soil according to claim 3, characterized in that, The axial section of the grinding convex strip (121) is conical, and a plurality of grinding convex strips (121) are arranged at equal intervals along the outer wall surface of the grinding roller (12); the axial section of the grinding channel (111) is conical and is adapted to the shape of the grinding convex strip (121).

9. The device for measuring pH and total salt of soil according to claim 3, characterized in that, A material guiding spiral groove (123) is arranged between two adjacent grinding convex strips (121).

10. The device for measuring pH and total salt of soil according to any one of claims 1 to 9, characterized in that, The soil pH and total salt detection unit (3) comprises a salt detection sensor (31) and a pH detection sensor (32).

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