A soil organic matter pretreatment device

Abstract

The utility model relates to soil organic matter processing technical field, specifically disclose a kind of soil organic matter pretreatment device, including oil bath pot, the inside of oil bath pot is provided with test tube rack by shaking mechanism, for placing test tube by the test tube rack, while the left side of oil bath pot is provided with the placement area of the top hinged sealing cover, for placing the test tube of digestion end by the placement area, by the design of shaking mechanism cooperation guide table and guide sleeve, make test tube rack can stably, evenly reciprocate. This soft shake ensures that the solution in the test tube is mixed fully and heated evenly, thereby significantly improving the digestion effect and reaction efficiency of the soil sample. The test tube rack is double-fixed with a top plate and a bottom plate, and cooperates with a funnel support to effectively fix the test tube and the small funnel, preventing them from tipping over or solution splashing during shaking.

Description

Technical Field

[0001] This utility model relates to the field of soil organic matter treatment technology, and specifically discloses a soil organic matter pretreatment device. Background Technology

[0002] In the analysis of soil organic matter, sample pretreatment is a crucial step affecting the accuracy of the test results. Among them, oil bath digestion is a commonly used pretreatment method, which requires heating and shaking the test tube containing soil sample and potassium dichromate solution at a specific temperature to ensure that the sample reacts fully and uniformly.

[0003] Currently, laboratories commonly use manual shaking, which is not only inefficient and labor-intensive, but also makes it difficult to ensure uniform heating and shaking of each test tube, potentially introducing human error and affecting the accuracy and comparability of the data. Furthermore, the outer walls of the test tubes after digestion often adhere to high-temperature oil bath media; collecting and cleaning this media is cumbersome, poses a risk of burns, and improper disposal can easily cause environmental pollution. Therefore, a soil organic matter pretreatment device is needed to solve this problem. Utility Model Content

[0004] This invention proposes a soil organic matter pretreatment device, which integrates a funnel support and a shaking mechanism to achieve automated shaking and funnel fixation, thereby improving experimental efficiency and safety. The placement area design avoids environmental pollution from test tubes after digestion and facilitates subsequent processing.

[0005] This utility model is implemented as follows: a soil organic matter pretreatment device includes an oil bath. Inside the oil bath, a test tube rack is provided through a shaking mechanism for placing test tubes. At the same time, a placement area with a sealing cap hinged to the top is provided on the left side of the oil bath for placing test tubes after digestion. The test tube rack includes a top plate and a bottom plate fixedly connected by connecting columns. The top plate is located above the bottom plate. The upper end face of the bottom plate has a plurality of evenly distributed test tube support holes. The top plate has a plurality of test tube holes that are concentrically arranged with the test tube support holes. The upper end face of the top plate is threaded with a plurality of funnel supports located on the outside of the test tube holes respectively. The placement area is provided with a support plate, and the upper surface of the support plate has multiple oil leakage holes. The placement area is provided with an oil draining groove fixedly connected to the bottom of the support plate.

[0006] As a preferred embodiment of the soil organic matter pretreatment device of this utility model, the shaking mechanism includes an installation cavity fixedly connected to the right side of the oil bath pot, a drive motor installed inside the installation cavity via a mounting seat, an eccentric wheel fixedly connected to the output end of the drive motor, a second connecting rod rotatably connected to the eccentric wheel, a first connecting rod movably connected to the other end of the second connecting rod via a rotating shaft, and an installation block fixedly connected to the bottom end of the base plate and fixedly connected to the first connecting rod.

[0007] As a preferred embodiment of the soil organic matter pretreatment device of this utility model, two sets of guide platforms are fixedly connected to the left and right sides of the inner wall of the oil bath pot, and a guide sleeve fitted on the outer wall of the guide platform is fixedly connected to the bottom end of the bottom plate.

[0008] In a preferred embodiment of the soil organic matter pretreatment device of this utility model, the test tube support hole is a stepped hole with a narrowed bottom.

[0009] As a preferred embodiment of the soil organic matter pretreatment device of this utility model, a waste liquid collection tray for collecting waste liquid is placed at the bottom of the placement area.

[0010] As a preferred embodiment of the soil organic matter pretreatment device of this utility model, a sealing sleeve is provided at the connection between the first connecting rod and the oil bath, and handles are fixedly connected to both the left and right sides of the upper surface of the top plate.

[0011] As a preferred embodiment of the soil organic matter pretreatment device of this utility model, a controller and a temperature control board are installed at the top of the mounting cavity. The temperature control board is electrically connected to the heating module disposed in the oil bath. The drive motor is electrically connected to the controller.

[0012] The beneficial effects of this utility model are: The shaker mechanism, combined with the guide platform and guide sleeve design, enables the test tube rack to perform stable and uniform reciprocating motion. This gentle shaking ensures thorough mixing and uniform heating of the solution within the test tubes, thereby significantly improving the digestion effect and reaction efficiency of soil samples. The test tube rack is double-fixed with a top plate and a bottom plate, and together with a funnel support, it can effectively fix the test tubes and small funnels, preventing them from tipping over or the solution from splashing out during shaking. The placement area solves the problem of draining oil from high-temperature test tubes. Through the support plate holding the test tubes, residual oil flows through the drain holes into the oil-draining tank, eventually collecting in the waste liquid collection tray. This design achieves centralized and clean recycling of waste oil, preventing pollution of the experimental environment. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0014] Figure 1 This is a front sectional view of a soil organic matter pretreatment device according to the present invention.

[0015] Figure 2 This is a perspective view of the support plate of this utility model.

[0016] Figure 3 This is a perspective view of the top plate of this utility model.

[0017] The markings in the diagram are: 1. Oil bath; 101. Guide platform; 2. Base plate; 201. Test tube support hole; 202. Top plate; 203. Test tube hole; 204. Funnel support; 3. First connecting rod; 301. Second connecting rod; 302. Eccentric wheel; 303. Mounting cavity; 4. Placement area; 401. Support plate; 402. Oil drain hole; 403. Oil drain tank; 404. Waste liquid collection tray. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0019] Please see Figure 1-3 A soil organic matter pretreatment device includes an oil bath 1. Inside the oil bath 1, a test tube rack is provided through a shaking mechanism for placing test tubes. At the same time, a placement area 4 with a sealing cap hinged to the top is provided on the left side of the oil bath 1 for placing test tubes after digestion. The test tube rack includes a top plate 202 and a bottom plate 2 fixedly connected by connecting columns. The top plate 202 is located above the bottom plate 2. The upper end face of the bottom plate 2 has a plurality of evenly distributed test tube support holes 201. The top plate 202 has a plurality of test tube holes 203 that are concentrically arranged with the test tube support holes 201. The upper end face of the top plate 202 is threaded with a plurality of funnel supports 204 located on the outside of the test tube holes 203 respectively. The placement area 4 is provided with a support plate 401. The upper surface of the support plate 401 is provided with multiple oil leakage holes 402. The placement area 4 is provided with an oil draining groove 403 fixedly connected to the bottom of the support plate 401.

[0020] In this embodiment: the funnel support 204 is threaded onto the top plate 202, and then test tubes are inserted sequentially into the test tube hole 203 and the test tube support hole 201. The funnel support 204 limits the small funnel placed on the test tube, preventing the small funnel from falling and ensuring that the solution does not splash out. The shaking mechanism drives the test tube rack to shake evenly, making the oil bath heating more uniform. After digestion, the test tube is transferred to the placement area 4 and placed on the upper surface of the support plate 401. The residual oil flows into the funnel-shaped oil drain trough 403 through the oil leakage hole 402, achieving clean collection and preventing environmental pollution.

[0021] As a technical optimization of this utility model, the shaking mechanism includes a mounting cavity 303 fixedly connected to the right side of the oil bath 1, a drive motor mounted inside the mounting cavity 303 via a mounting base, an eccentric wheel 302 fixedly connected to the output end of the drive motor, a second connecting rod 301 rotatably connected to the eccentric wheel 302, a first connecting rod 3 movably connected to the other end of the second connecting rod 301 via a rotating shaft, and a mounting block fixedly connected to the bottom end of the base plate 2 and fixedly connected to the first connecting rod 3.

[0022] In this embodiment: after the drive motor starts, the eccentric wheel 302 rotates, which drives the mounting block and test tube rack to reciprocate through the second connecting rod 301 and the first connecting rod 3, so as to realize the gentle shaking of the test tube, replace manual operation, ensure that the solution in the test tube is mixed evenly, and improve the digestion effect.

[0023] As a technical optimization of this utility model, two sets of guide platforms 101 are fixedly connected to the left and right sides of the inner wall of the oil bath pot 1, and a guide sleeve sleeved on the outer wall of the guide platform 101 is fixedly connected to the bottom end of the bottom plate 2.

[0024] In this embodiment, the guide table 101 and guide sleeve design ensure that the test tube rack moves stably during the shaking process.

[0025] As a technical optimization of this utility model, the test tube support hole 201 is a stepped hole with a narrowed bottom.

[0026] In this embodiment, the stepped hole design can support the test tube, thereby making the test tube more stable.

[0027] As a technical optimization of this utility model, a waste liquid collection tray 404 for collecting waste liquid is placed at the bottom of the placement area 4.

[0028] In this embodiment: the digested test tube is placed on the support plate 401, and the residual oil flows into the oil drain tank 403 through the oil leakage hole 402, and finally drips into the waste liquid collection tray 404 for collection. The collected oil is then put back into the oil bath 1 to reduce oil loss.

[0029] As a technical optimization of this utility model, a sealing sleeve is provided at the connection between the first connecting rod 3 and the oil bath 1, and handles are fixedly connected to both the left and right sides of the upper surface of the top plate 202.

[0030] In this embodiment: the sealing sleeve prevents leakage of oil bath medium, and the handle facilitates manual loading and unloading of the test tube rack, improving operational convenience and safety.

[0031] As a technical optimization of this utility model, a controller and a temperature control board are installed at the top of the mounting cavity 303. The temperature control board is electrically connected to the heating module set in the oil bath 1, and the drive motor is electrically connected to the controller.

[0032] In this embodiment: the drive motor can be controlled by a controller (such as a PLC controller), and the oil bath temperature (such as 170°C–180°C) can be set by a temperature control board.

[0033] The working principle and usage process of this utility model are as follows: Multiple funnel supports 204 are screwed into the corresponding threaded holes on the top plate 202. Then, test tubes containing soil samples and digestion solution are sequentially passed through the test tube holes 203 of the top plate 202 and the test tube support holes 201 of the bottom plate 2, ensuring the test tubes are securely placed within the stepped holes of the test tube support holes 201. Finally, a small funnel is placed at the mouth of the test tube and secured using the funnel supports 204 above to prevent it from slipping. Cover the oil bath 1 with the lid and set the desired oil bath temperature (e.g., 170°C–180°C) using the temperature control panel. After starting the device, the heating module begins to work, heating the oil bath medium. Simultaneously, the drive motor starts, driving the eccentric wheel 302 to rotate. The eccentric wheel 302 converts the rotational motion into reciprocating linear motion through the second connecting rod 301 and the first connecting rod 3, thereby causing the connected mounting block and the entire test tube rack to shake smoothly and evenly under the constraint of the guide table 101 and the guide sleeve, realizing the automatic mixing and heating digestion of the solution in the test tube. After the digestion process is complete, the operator can use the handles on both sides of the top plate 202 to lift the entire test tube rack out of the oil bath 1. The digested test tubes are then transferred one by one to the placement area 4 on the left. The high-temperature oil bath medium remaining on the outer wall of the test tubes will flow downwards under gravity, dripping through the oil leakage holes 402 on the support plate 401 into the funnel-shaped oil draining tank 403 below, and finally collecting in the waste liquid collection tray 404 at the bottom. The collected oil is then returned to the oil bath 1 to reduce oil loss.

[0034] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A soil organic matter pretreatment device, comprising an oil bath (1), characterized in that: The oil bath (1) is equipped with a test tube rack inside by a shaking mechanism. The test tube rack is used to place test tubes. At the same time, the oil bath (1) is equipped with a placement area (4) with a sealing cap hinged to the top on the left side. The placement area (4) is used to place test tubes that have finished digestion. The test tube rack includes a top plate (202) and a bottom plate (2) fixedly connected by connecting columns. The top plate (202) is located above the bottom plate (2). The upper end face of the bottom plate (2) is provided with a plurality of evenly distributed test tube support holes (201). The top plate (202) is provided with a plurality of test tube holes (203) arranged concentrically with the test tube support holes (201). The upper end face of the top plate (202) is threaded with a plurality of funnel supports (204) located outside the test tube holes (203). The placement area (4) is provided with a support plate (401), and the upper surface of the support plate (401) is provided with multiple oil leakage holes (402). The placement area (4) is provided with an oil drain groove (403) fixedly connected to the bottom of the support plate (401).

2. The soil organic matter pretreatment device according to claim 1, characterized in that: The rocking mechanism includes a mounting cavity (303) fixedly connected to the right side of the oil bath (1), a drive motor mounted inside the mounting cavity (303) via a mounting base, an eccentric wheel (302) fixedly connected to the output end of the drive motor, a second connecting rod (301) rotatably connected to the eccentric wheel (302), a first connecting rod (3) movably connected to the other end of the second connecting rod (301) via a rotating shaft, and a mounting block fixedly connected to the bottom end of the base plate (2) and fixedly connected to the first connecting rod (3).

3. The soil organic matter pretreatment device according to claim 1, characterized in that: Two sets of guide platforms (101) are fixedly connected to the left and right sides of the inner wall of the oil bath pot (1), and a guide sleeve fitted on the outer wall of the guide platform (101) is fixedly connected to the bottom end of the bottom plate (2).

4. The soil organic matter pretreatment device according to claim 1, characterized in that: The test tube support hole (201) is a stepped hole with a narrowed bottom.

5. The soil organic matter pretreatment device according to claim 1, characterized in that: The bottom of the placement area (4) is equipped with a waste liquid collection tray (404) for collecting waste liquid.

6. The soil organic matter pretreatment device according to claim 2, characterized in that: A sealing sleeve is provided at the connection between the first connecting rod (3) and the oil bath (1), and handles are fixedly connected to both the left and right sides of the upper surface of the top plate (202).

7. A soil organic matter pretreatment device according to claim 2, characterized in that: The top of the mounting cavity (303) is equipped with a controller and a temperature control board. The temperature control board is electrically connected to the heating module located in the oil bath (1). The drive motor is electrically connected to the controller.

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