Total nitrogen sample content detection device for vegetable planting

Abstract

The utility model discloses a total nitrogen sample content detection device for vegetable planting, and particularly relates to the field of total nitrogen detection.The total nitrogen sample content detection device comprises a bottom plate, a total nitrogen detector is installed at one end of the top of the bottom plate, a base is arranged at the other end of the top of the bottom plate, and a control panel is fixed to the middle of one side of the total nitrogen detector; a door body is hinged to the bottom of one end, close to the base, of the total nitrogen detector. A plurality of sample test tubes to be detected can be inserted into the mounting plate, the vibration motor works to drive the mounting plate to oscillate up and down to oscillate and uniformly mix samples, and then the mounting plate can move downwards under the action of the hydraulic telescopic rod, so that the sample test tubes are inserted into the automatic digestion instrument to be digested; the automatic digestion instrument can be driven to rotate through the gear transmission effect, a sample test tube is transferred to the position below a detection probe, batch detection is facilitated, whole-process automatic operation is achieved, efficiency is higher, and safety is higher.

Description

Technical Field

[0001] The utility model relates to the field of total nitrogen detection, and more specifically, to a total nitrogen sample content detection device for vegetable planting. Background Art

[0002] Plant total nitrogen determination refers to the determination of plant total nitrogen, including sample decomposition and quantification of nitrogen in the test solution. The sulfuric acid-mixed accelerator-distillation method is recognized as the standard method for nitrogen determination. The plant sample is digested and decomposed by sulfuric acid-mixed accelerator, and the ammonium salt in the digestion solution becomes ammonia gas after alkalization. It is absorbed by boric acid solution after distillation and titrated with acid standard solution. In the prior art, a total nitrogen detector is commonly used to detect the total nitrogen content of the sample;

[0003] After searching, the existing patent (publication number: CN219799431U) discloses a soil quality total nitrogen detection device, which belongs to the field of soil detection technology, including two vertical plates, and a containing box is provided above the two vertical plates. The bottom surface of the containing box is provided with two sets of sliding grooves, and the inner wall of each sliding groove is slidably connected with a slider. The reciprocating work of the electric push rod can push the containing box, so that the containing box can move back and forth and left and right, and the soil inside the containing box can be screened, so that the soil can fall down from the wire screen, and it can ensure that the fallen soil is in loose powder form. At the same time, the connecting cover can guide the fallen soil into the detection device body, so as to ensure the accuracy of the detection data.

[0004] In the existing detection method, before the detection, it is necessary to add an accelerator and concentrated sulfuric acid into the sample test tube, then shake and mix the test tube, then put the test tube into a digestion instrument for digestion treatment, and finally take out the test tube and put it into a total nitrogen detector for detection. The whole process is relatively cumbersome. When the test tube is shaken or transferred, if the concentrated sulfuric acid accidentally leaks, it will cause injuries to the staff, and the safety is low. Therefore, a more efficient and safer total nitrogen detector is needed; at the same time, the above-cited patent documents do not propose relevant solutions to solve the above problems;

[0005] Therefore, in order to solve the above problems, a device for detecting the content of total nitrogen samples for vegetable planting is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a total nitrogen sample content detection device for vegetable planting to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a total nitrogen sample content detection device for vegetable planting, comprising a bottom plate, a total nitrogen detector is installed at one end of the top of the bottom plate, and a base is provided at the other end of the top of the bottom plate, and a control panel is fixed at the middle position of one side of the total nitrogen detector, and a door body is hinged at the bottom of the total nitrogen detector near one end of the base, slide rails are provided on both sides of the top of the bottom plate, and the slide rails extend into the total nitrogen detector, and sliders matching the slide rails are provided on both sides of the base;

[0008] An automatic digestion instrument is installed inside the base, and hydraulic telescopic rods are evenly arranged at the edge position of the top of the automatic digestion instrument, the top output ends of the hydraulic telescopic rods are connected to mounting columns, and mounting plates are installed between the mounting columns, test tube slots are evenly opened at the edge positions of the mounting plates, and limiting sleeves are fixed to the bottom of the mounting plates below the test tube slots, clamping components are arranged on the mounting plates on one side of the test tube slots, and a vibration motor is fixed at the middle position of the top of the mounting plate.

[0009] Preferably, a driving seat is provided at one end of the base away from the total nitrogen detector, and a driving motor is fixed on the top of the driving seat, a gear disc warehouse is provided at the bottom end inside the base, and a rotating warehouse is provided in the base above the gear disc warehouse, a driving gear is installed in the gear disc warehouse below the driving motor, and the bottom output end of the driving motor is connected to the driving gear through a rotating shaft, and a handle is provided at one end of the driving seat away from the base.

[0010] Preferably, a toothed disc meshing with a driving gear is provided at the bottom of the automatic digestion instrument, and the outer diameter of the automatic digestion instrument matches the inner diameter of the rotating chamber, and the inner diameter of the toothed disc chamber is larger than the outer diameter of the toothed disc.

[0011] Preferably, connecting ears are evenly arranged on the outer periphery of the mounting plate, and the mounting posts all pass through the connecting ears, and buffer springs are wound around the outer sides of the mounting posts above and below the connecting ears.

[0012] Preferably, the clamping assembly includes a sleeve, a return spring, a guide column, a thickened column and a resistance piece, the sleeve passes through the mounting plate, and the sleeve is fixedly connected to the mounting plate, the interior of the sleeve is passed through by a guide column, and a thickened column is installed at the bottom of the guide column, and a resistance piece is provided on the side of the thickened column close to the limit sleeve.

[0013] Preferably, the sleeve is provided with a first movable groove, a second movable groove and a third movable groove in sequence from top to bottom, and the inner diameters of the first movable groove and the third movable groove coincide with the outer diameter of the guide column, the inner diameter of the second movable groove is larger than the outer diameter of the guide column, and the outer circumference of the guide column inside the second movable groove protrudes outward to form a flange, a return spring is wound around the outer side of the guide column below the flange, and a hand pressure plate is provided on the top of the guide column.

[0014] Preferably, the resistance member includes a resistance spring, an annular plate and a bottom plate, the bottom plate is connected to the bottom of the thickened column by bolts, and the annular plate is connected to the bottom of the limit sleeve, the guide column passes through the annular plate, a resistance spring is connected between the annular plate and the bottom plate, and the resistance spring, annular plate and bottom plate are designed as an integrated die-cutting design.

[0015] Preferably, the cross-section of the limiting sleeve is designed as a three-quarter ring, and the opening side of the limiting sleeve is directly opposite to the abutting spring of the clamping assembly.

[0016] Technical effects and advantages of the utility model:

[0017] 1. Compared with the prior art, the total nitrogen sample content detection device for vegetable planting is provided with a base, an automatic digestion instrument and a mounting plate. A plurality of sample tubes to be tested can be plugged into the mounting plate. When the vibration motor is working, it can drive the mounting plate to oscillate up and down, and oscillate and mix the sample without manual shaking and mixing, which is safer. After mixing, the mounting plate can be moved down under the action of the hydraulic telescopic rod, so that the sample tube can be inserted into the automatic digestion instrument for digestion treatment, and then the base is pushed into the total nitrogen detector for total nitrogen detection. During the detection, the driving motor works, and the automatic digestion instrument can be driven to rotate through the gear transmission action, and the sample tube is transferred to the bottom of the detection probe, which is convenient for batch detection and fully automated operation, with higher efficiency and higher safety.

[0018] 2. Compared with the prior art, the total nitrogen sample content detection device for vegetable planting is provided with a limit sleeve and a clamping assembly. When in use, the limit sleeve can position the sample tube, and pressing the hand pressure plate can move the guide column downward, driving the bottom plate to move downward, so that the height difference between the bottom plate and the annular plate increases, and the curvature of the resistance spring is reduced, which is convenient for the insertion of the test tube. The hand pressure plate is released, and the guide column can be reset under the action of the reset spring, and the resistance spring is pressed against the outer wall of the test tube to complete the fixation of the test tube, avoiding displacement of the test tube during vibration or transfer, and the detection result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the mounting plate of the utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the automatic digestion instrument of the utility model.

[0022] Figure 4 This is a schematic diagram of the base structure of the utility model.

[0023] Figure 5 This is a cross-sectional view of the clamping assembly of the utility model in a non-clamping state.

[0024] Figure 6 This is a cross-sectional view of the clamping state of the clamping assembly of the utility model.

[0025] The accompanying drawings are marked as follows: 1. Total nitrogen detector; 2. Control panel; 3. Door; 4. Slide rail; 5. Bottom plate; 6. Base; 601. Toothed disc bin; 602. Rotating bin; 603. Driving seat; 7. Driving motor; 8. Automatic digestion instrument; 801. Toothed disc; 9. Mounting plate; 901. Connecting ear; 10. Vibration motor; 11. Clamping assembly; 12. Limiting sleeve; 13. Mounting column; 14. Test tube slot; 15. Buffer Impact spring; 16, hydraulic telescopic rod; 17, slider; 18, driving gear; 19, handle; 20, sleeve; 2002, first movable groove; 2002, second movable groove; 2003, third movable groove; 21, return spring; 22, guide column; 2201, hand pressure plate; 2202, flange; 23, thickened column; 24, resistance member; 2401, resistance spring leaf; 2402, annular sheet; 2403, bottom sheet. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] As attached Figure 1 A total nitrogen sample content detection device for vegetable planting is shown, comprising a bottom plate 5, a total nitrogen detector 1 is installed at one end of the top of the bottom plate 5, and a base 6 is provided at the other end of the top of the bottom plate 5, and a control panel 2 is fixed at the middle position of one side of the total nitrogen detector 1, and a door body 3 is hinged at the bottom of the total nitrogen detector 1 near one end of the base 6, slide rails 4 are provided on both sides of the top of the bottom plate 5, and the slide rails 4 extend into the total nitrogen detector 1, and sliders 17 matching the slide rails 4 are provided on both sides of the base 6;

[0029] An automatic digestion instrument 8 is installed inside the base 6, and hydraulic telescopic rods 16 are evenly arranged at the edge position of the top of the automatic digestion instrument 8, the top output ends of the hydraulic telescopic rods 16 are connected to mounting columns 13, and mounting plates 9 are installed between the mounting columns 13, test tube slots 14 are evenly opened at the edge positions of the mounting plates 9, and limiting sleeves 12 are fixed at the bottom of the mounting plates 9 below the test tube slots 14, clamping components 11 are arranged on the mounting plates 9 on one side of the test tube slots 14, and a vibration motor 10 is fixed at the middle position of the top of the mounting plates 9.

[0030] Among them: the vibration motor 10 is working, which can drive the mounting plate 9 to oscillate up and down, and oscillate and mix the sample without manual shaking and mixing, which is safer. After mixing, the mounting plate 9 can be moved downward under the action of the hydraulic telescopic rod 16, so that the sample test tube can be inserted into the automatic digestion instrument 8 for digestion treatment, which is automated operation, more efficient and safer.

[0031] Embodiment 2

[0032] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 6 As shown, see the following description for details:

[0033] As a preferred embodiment, a driving seat 603 is provided at one end of the base 6 away from the total nitrogen detector 1, and a driving motor 7 is fixed on the top of the driving seat 603, a geared disc bin 601 is provided at the bottom end of the base 6, and a rotating bin 602 is provided in the base 6 above the geared disc bin 601, a driving gear 18 is installed in the geared disc bin 601 below the driving motor 7, and the bottom output end of the driving motor 7 is connected to the driving gear 18 through a rotating shaft, and a handle 19 is provided at one end of the driving seat 603 away from the base 6; further, when the driving motor 7 is working, it can drive the driving gear 18 to rotate, and drive the automatic digestion instrument 8 to rotate through the gear transmission action, so as to transfer the sample test tube to the bottom of the detection probe, which is convenient for batch detection and has a higher degree of automation.

[0034] As a preferred embodiment, a toothed disc 801 meshing with the driving gear 18 is provided at the bottom of the automatic digestion instrument 8, and the outer diameter of the automatic digestion instrument 8 is consistent with the inner diameter of the rotating chamber 602, and the inner diameter of the toothed disc chamber 601 is larger than the outer diameter of the toothed disc 801; further, the inner diameter matching design makes the automatic digestion instrument 8 rotate more smoothly in the rotating chamber 602, less likely to be displaced, and subsequent detection is more accurate. The design of an outer diameter larger than the toothed disc 801 makes it more convenient for the toothed disc 801 to rotate, and the design is more reasonable.

[0035] As a preferred embodiment, connecting ears 901 are evenly arranged on the outer periphery of the mounting plate 9, and the mounting columns 13 all penetrate the connecting ears 901, and buffer springs 15 are wound around the outer sides of the mounting columns 13 above and below the connecting ears 901; further, the buffer springs 15 are designed to provide an elastic buffer connection design between the mounting plate 9 and the mounting columns 13, which facilitates the vibration motor 10 to drive the mounting plate 9 to oscillate up and down when working, and the design is more reasonable.

[0036] As a preferred embodiment, the clamping assembly 11 includes a sleeve 20, a reset spring 21, a guide column 22, a thickened column 23 and a resistance member 24. The sleeve 20 passes through the mounting plate 9, and the sleeve 20 is fixedly connected to the mounting plate 9. The interior of the sleeve 20 passes through the guide column 22, and the bottom of the guide column 22 is installed with a thickened column 23. The side of the thickened column 23 close to the limiting sleeve 12 is provided with a resistance member 24; further, the resistance member 24 can cooperate with the limiting sleeve 12 to limit and fix the sample test tube to avoid displacement of the test tube during vibration or transfer, and the detection result is more accurate.

[0037] As a preferred embodiment, the sleeve 20 is provided with a first movable groove 2001, a second movable groove 2002 and a third movable groove 2003 from top to bottom, and the inner diameters of the first movable groove 2001 and the third movable groove 2003 coincide with the outer diameter of the guide column 22, the inner diameter of the second movable groove 2002 is larger than the outer diameter of the guide column 22, and the outer periphery of the guide column 22 inside the second movable groove 2002 protrudes outward to form a flange 2202, and the flange 2202 is provided below A return spring 21 is wound around the outer side of the guide column 22, and a hand pressure plate 2201 is provided on the top of the guide column 22; further, when in use, the hand pressure plate 2201 is pressed down to move the guide column 22 downward, and the curvature of the resistance spring 2401 of the resistance member 24 is reduced, which facilitates the insertion of the test tube. The hand pressure plate 2201 is released, and the guide column 22 can be reset under the action of the return spring 21, and the resistance spring 2401 is pressed against the outer wall of the test tube to complete the fixation of the test tube, and the operation is very convenient.

[0038] As a preferred embodiment, the resistance member 24 includes a resistance spring 2401, an annular sheet 2402 and a bottom sheet 2403. The bottom sheet 2403 is connected to the bottom of the thickened column 23 by bolts, and the annular sheet 2402 is connected to the bottom of the limiting sleeve 12. The guide column 22 passes through the annular sheet 2402. The resistance spring 2401 is connected between the annular sheet 2402 and the bottom sheet 2403. The resistance spring 2401, the annular sheet 2402 and the bottom sheet 2403 are designed as an integrated die-cutting design. Furthermore, the downward movement of the guide column 22 can drive the bottom sheet 2403 to move downward, so that the height difference between the bottom sheet 2403 and the annular sheet 2402 increases, and the curvature of the resistance spring 2401 decreases, which facilitates the insertion of the test tube. The integrated design makes the connection between the resistance spring 2401, the annular sheet 2402 and the bottom sheet 2403 more stable, less prone to breakage, and safer to use.

[0039] As a preferred embodiment, the cross-section of the limiting sleeve 12 is designed as a three-quarter circular ring, and the open side of the limiting sleeve 12 is directly opposite to the resistance spring 2401 of the clamping assembly 11; further, the three-quarter circular ring design can limit and position the sample tube to prevent the sample tube from being deflected, and the sample tube can be fixed in cooperation with the clamping assembly 11, and the design is more reasonable.

[0040] The working process of the utility model is as follows:

[0041] When in use, turn on the power supply, first weigh a proper amount of sample and put it into the sample test tube, and add a proper amount of accelerator and concentrated sulfuric acid, press the hand pressure plate 2201 downward to move the guide column 22 downward, reduce the arc of the resistance spring 2401 of the resistance member 24, insert the sample tube into the test tube slot 14, release the hand pressure plate 2201, the guide column 22 can be reset under the action of the reset spring 21, the resistance spring 2401 presses against the outer wall of the test tube to complete the fixation of the test tube, open the door body 3, and push the base 6 into the total nitrogen detector 1. Then the vibration motor 10 works to drive the mounting plate 9 to vibrate up and down to oscillate and mix the sample. After the mixing is completed, the hydraulic telescopic rod 16 works to drive the mounting plate 9 to move downward, so that the sample test tube is inserted into the automatic digestion instrument 8 for digestion treatment. Then the internal structure of the total nitrogen detector 1 performs total nitrogen detection on the digested sample. During the detection, the driving motor 7 works to drive the driving gear 18 to rotate, and the automatic digestion instrument 8 is driven to rotate through the gear transmission action to transfer the sample test tube to the bottom of the detection probe.

[0042] Finally: The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A total nitrogen sample content detection device for vegetable planting, comprising a bottom plate (5), characterized in that; A total nitrogen detector (1) is installed at one end of the top of the bottom plate (5), and a base (6) is provided at the other end of the top of the bottom plate (5), a control panel (2) is fixed at the middle position of one side of the total nitrogen detector (1), and a door body (3) is hingedly connected to the bottom of the total nitrogen detector (1) near one end of the base (6), slide rails (4) are provided on both sides of the top of the bottom plate (5), and the slide rails (4) extend into the total nitrogen detector (1), and slide blocks (17) matching the slide rails (4) are provided on both sides of the base (6); An automatic digestion instrument (8) is installed inside the base (6), and hydraulic telescopic rods (16) are evenly arranged at the edge position of the top of the automatic digestion instrument (8), the top output ends of the hydraulic telescopic rods (16) are connected to mounting columns (13), and mounting plates (9) are installed between the mounting columns (13), test tube slots (14) are evenly opened at the edge positions of the mounting plates (9), and limiting sleeves (12) are fixed to the bottom of the mounting plates (9) below the test tube slots (14), clamping components (11) are arranged on the mounting plates (9) on one side of the test tube slots (14), and a vibration motor (10) is fixed at the middle position of the top of the mounting plates (9).

2. A total nitrogen sample content detection device for vegetable planting according to claim 1, characterized in that: A drive seat (603) is provided at one end of the base (6) away from the total nitrogen detector (1), and a drive motor (7) is fixed on the top of the drive seat (603); a toothed disc bin (601) is provided at the bottom end of the base (6), and a rotating bin (602) is provided in the base (6) above the toothed disc bin (601); a drive gear (18) is installed in the toothed disc bin (601) below the drive motor (7), and the bottom output end of the drive motor (7) is connected to the drive gear (18) via a rotating shaft; and a handle (19) is provided at one end of the drive seat (603) away from the base (6).

3. A total nitrogen sample content detection device for vegetable planting according to claim 2, characterized in that: The bottom of the automatic digestion apparatus (8) is provided with a toothed disc (801) meshing with the driving gear (18), and the outer diameter of the automatic digestion apparatus (8) matches the inner diameter of the rotating chamber (602), and the inner diameter of the toothed disc chamber (601) is larger than the outer diameter of the toothed disc (801).

4. A total nitrogen sample content detection device for vegetable planting according to claim 1, characterized in that: The outer circumference of the mounting plate (9) is evenly provided with connecting ears (901), and the mounting columns (13) all penetrate the connecting ears (901). Buffer springs (15) are wound around the outer sides of the mounting columns (13) above and below the connecting ears (901).

5. The device for detecting total nitrogen content in a vegetable planting sample according to claim 1, characterized in that: The clamping assembly (11) comprises a sleeve (20), a return spring (21), a guide column (22), a thickened column (23) and a resisting member (24); the sleeve (20) passes through the mounting plate (9), and the sleeve (20) is fixedly connected to the mounting plate (9); the guide column (22) passes through the interior of the sleeve (20), and the thickened column (23) is installed at the bottom of the guide column (22); and the resisting member (24) is arranged on a side of the thickened column (23) close to the limiting sleeve (12).

6. A total nitrogen sample content detection device for vegetable planting according to claim 5, characterized in that: The sleeve (20) is provided with a first movable groove (2001), a second movable groove (2002) and a third movable groove (2003) in sequence from top to bottom, and the inner diameters of the first movable groove (2001) and the third movable groove (2003) match the outer diameter of the guide column (22), the inner diameter of the second movable groove (2002) is larger than the outer diameter of the guide column (22), and the outer periphery of the guide column (22) inside the second movable groove (2002) protrudes outward to form a flange (2202), a return spring (21) is wound around the outer side of the guide column (22) below the flange (2202), and a hand pressure plate (2201) is provided on the top of the guide column (22).

7. A total nitrogen sample content detection device for vegetable planting according to claim 6, characterized in that: The resisting member (24) comprises a resisting spring (2401), an annular sheet (2402) and a bottom sheet (2403); the bottom sheet (2403) is connected to the bottom of the thickened column (23) via bolts, and the annular sheet (2402) is connected to the bottom of the limiting sleeve (12); the guide column (22) passes through the annular sheet (2402); a resisting spring (2401) is connected between the annular sheet (2402) and the bottom sheet (2403); and the resisting spring (2401), the annular sheet (2402) and the bottom sheet (2403) are of an integrated die-cut design.

8. A total nitrogen sample content detection device for vegetable planting according to claim 7, characterized in that: The cross-section of the limiting sleeve (12) is designed as a three-quarter ring, and the opening side of the limiting sleeve (12) is directly opposite to the abutting spring (2401) of the clamping assembly (11).

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