Splash guard for diffusion boat

Abstract

The utility model relates to experimental ware technical field more specifically, relate to a kind of diffusion dish of anti-splashing, it includes dish body and dish cover, dish body inner chamber is divided into inner chamber and outer chamber by partition ring;Still include drainage tube and push button, drainage tube is connected in outer chamber, drainage tube is equipped with liquid inlet, liquid cavity and liquid outlet, liquid inlet is communicated with liquid outlet by liquid cavity, liquid cavity is communicated with outer chamber by liquid outlet;First port is set on the side wall of dish body, liquid inlet is communicated with first port;Push button is located outside dish body and is slidably connected with dish body, push button can be slid to close first port.The utility model overcomes the deficiency that lye is easily splashed into inner chamber and affects experimental results in the process of being injected into outer chamber in prior art, the application is provided with drainage tube and push button, by pushing push button, the liquid inlet of drainage tube can be quickly opened or closed, lye can enter drainage tube through liquid inlet, then be directionally transported to outer chamber through drainage tube, to avoid splashing into inner chamber or misinjecting into inner chamber.

Description

Technical Field

[0001] This utility model relates to the field of laboratory equipment technology, and more specifically, to a splash-proof diffusion dish. Background Technology

[0002] The content of available nitrogen in soil is a crucial indicator that directly reflects the level of nitrogen available to plants in the short term, influencing crop growth and yield. A diffusion dish is a specialized experimental apparatus for determining the content of available nitrogen in soil, primarily consisting of a dish body and a lid. The dish body is a circular glass dish, separated into an inner and outer chamber by a ring structure. The outer chamber holds the soil sample and an alkaline solution (usually NaOH), while the inner chamber holds an absorption solution (such as boric acid-indicator solution) to absorb the ammonia released from the outer chamber. The lid is typically a glass plate or a specially designed sealing gasket to prevent the release of ammonia gas. A slit is located at the edge of the lid, through which the alkaline solution can be injected into the outer chamber.

[0003] During the experiment, soil needs to be added to the outer chamber first, and indicator solution to the inner chamber, then the dish lid is placed on top. The alkaline solution is then injected into the outer chamber through the injection slit on the lid, and then the lid is moved to seal the dish tightly. However, during the manual injection of the alkaline solution, it is easy for the solution to splash onto the inner wall of the outer chamber and into the inner chamber, or to be accidentally injected into the inner chamber, thus contaminating the indicator and affecting the experimental results. Utility Model Content

[0004] To address the problem in the prior art that alkaline solution can easily splash into the inner chamber during the injection of alkaline solution into the outer chamber, thus affecting experimental results, this invention provides a splash-proof diffusion dish that can prevent alkaline solution from entering the inner chamber.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: A splash-proof diffusion dish includes a dish body and a dish lid. The inner cavity of the dish body is divided into an inner chamber and an outer chamber by a partition ring. It also includes a drain tube and a push button. The drain tube is connected to the outer chamber and has an inlet, a liquid cavity, and an outlet. The inlet communicates with the outlet through the liquid cavity, and the liquid cavity communicates with the outer chamber through the outlet. A first opening is provided on the side wall of the dish body, and the inlet communicates with the first opening. The push button is located outside the dish body and is slidably connected to it. The push button can be slidable to close the first opening.

[0006] In the above technical solution, soil is placed in the outer chamber, and the indicator is placed in the inner chamber, then the lid is closed. Next, a push button is pushed to open the first port, through which alkali solution is injected into the inlet. After entering the liquid chamber, the alkali solution flows into the outer chamber through the outlet. After the alkali solution is added, the push button is pushed in the opposite direction to close the first port or the inlet. By adding a drainage tube, the alkali solution can be directed to the outer chamber, preventing splashing or accidental injection into the inner chamber.

[0007] Preferably, the outlet is located at the bottom of the drainage tube, and an outlet pipe section is connected to the outlet. The alkaline solution flows into the outer chamber through the outlet pipe section. The outlet pipe section prevents the alkaline solution from flowing into the inner chamber along the outer wall of the drainage tube.

[0008] During the experiment, ammonia gas released from the soil may enter the outlet pipe and drainage pipe, potentially causing deviations in the experimental results. Therefore, preferably, the system also includes a switch assembly for opening or closing the outlet pipe. When adding alkali solution to the inlet, the operator can operate the switch assembly to open the outlet pipe, allowing the alkali solution to flow out. After the alkali solution is added, the operator can operate the switch assembly to close the outlet pipe, preventing ammonia gas released from the soil during the experiment from entering the outlet pipe and drainage pipe.

[0009] Preferably, the switching assembly includes an elastic seal and a pusher; a first guide hole is formed on the side wall of the liquid outlet section; a second guide hole is formed on the side wall of the vessel; the pusher is provided with a first push rod and a second push rod, the first push rod is slidably connected to the first guide hole along its own axis, and a sealing plate is connected to the end of the first push rod, the sealing plate closing the first guide hole; one side of the elastic seal is connected to the inner wall of the liquid outlet section, and the other opposite side abuts against the sealing plate, the elastic seal initially blocks the liquid outlet section; the second push rod is slidably connected to the second guide hole along its own axis; when the second push rod is pushed inward along its own axis, the first push rod drives the sealing plate to compress the elastic seal, so that a gap is formed between the sealing plate and the inner wall of the liquid outlet section for liquid to pass through. In the initial state, the elastic seal simultaneously squeezes the inner wall of the liquid outlet section and the sealing plate, thereby blocking the liquid outlet section to prevent ammonia from continuing to enter the liquid outlet section. Under the elastic force of the elastic seal, the sealing plate adheres tightly to the inner wall of the outlet pipe section and seals the first guide hole. During or after adding alkali solution to the inlet, the experimenter can press the second push rod. The second push rod transmits the force to the first push rod, thereby causing the sealing plate to compress the elastic seal, creating a gap between the sealing plate and the inner wall of the outlet pipe section, through which the alkali solution can flow out. After removing the pressure on the second push rod, the elastic seal returns to its original state and continues to block the outlet pipe section. When the elastic seal returns to its original state, it also pushes the sealing plate back to its original position, sealing the first guide hole.

[0010] Preferably, the switch assembly further includes a spring, and the end of the second push rod is provided with a pressure cap. The spring is sleeved on the portion of the second push rod located outside the dish body, with one end of the spring abutting against the outer periphery of the dish body and the other end abutting against the pressure cap. Pressing the pressure cap pushes the second push rod; when the pressure cap is pressed, the spring compresses; after the pressure on the pressure cap is removed, the spring returns to its original state, driving the second push rod to reset. This ensures that the first and second push rods can quickly reset after the external force is removed, thereby allowing the elastic seal to quickly return to its original state and seal the liquid outlet section.

[0011] Preferably, the outer peripheral surface of the second push rod is provided with a sealing soft rubber layer, which adheres to the inner wall of the second guide through hole. This sealing soft rubber layer allows for a closer fit to the second guide through hole, preventing ammonia gas from leaking between the second push rod and the inner wall of the second guide through hole.

[0012] Preferably, an inlet pipe section is connected to the inlet, and at least two outlets are provided on the drainage pipe, with at least two outlets located on opposite sides of the inlet. Each outlet is connected to an outlet pipe section, and each outlet pipe section is connected to the switch assembly. After injecting the alkali solution into the outer chamber, the dish needs to be shaken to mix the alkali solution evenly with the soil. However, excessive shaking can easily cause the indicator in the inner chamber to mix with the soil and alkali solution in the outer chamber. Providing at least two outlets allows for multi-point dripping of the alkali solution, resulting in a more even distribution of the alkali solution, thereby reducing the shaking amplitude and lowering the risk of mixing between the contents of the inner and outer chambers.

[0013] Preferably, the device further includes a guide plate connected to the outside of the dish body. The guide plate has a second opening communicating with the first opening. The push button is slidably connected to the side of the guide plate away from the dish body. Sliding the push button opens or closes the second opening. The push button is slidably connected to the dish body via the guide plate, rather than being directly connected, which reduces wear on the dish body. Preferably, the push button has multiple anti-slip protrusions, the extension direction of which is perpendicular to the sliding direction of the push button. The anti-slip protrusions increase the friction between the user's fingers and the push button, making the push button operate more smoothly and preventing slippage.

[0014] Preferably, the lid is threadedly connected to the body of the dish. This ensures a good seal between the lid and the body, and also makes the installation and removal of the lid simple and quick.

[0015] The beneficial effects of this utility model are: 1. A drainage tube and a push button are provided. By pushing the push button, the inlet of the drainage tube can be quickly opened or closed. The alkaline solution can enter the drainage tube through the inlet and then be directed to the outer chamber through the drainage tube to avoid splashing into the inner chamber or being accidentally injected into the inner chamber.

[0016] 2. A switch component is installed so that the outlet pipe section can be automatically closed after the alkali solution is added, to prevent ammonia gas released from the soil during the experiment from entering the outlet pipe section and the drainage pipe and affecting the experimental results. Attached Figure Description

[0017] Figure 1 A schematic diagram of the outer and inner chambers of a splash-proof diffusion dish; Figure 2 This is a longitudinal sectional view of the dish. Figure 3 A schematic diagram of the external structure of the dish; Figure 4 This is a cross-sectional view of the dish. Figure 5 This is a schematic diagram of the outlet pipe section in a blocked state; Figure 6 This is a schematic diagram of the liquid outlet pipe section in the open state.

[0018] In the attached diagram: 1-Dish body; 101-Spacer ring; 102-Inner chamber; 103-Outer chamber; 104-First port; 105-Second guide hole; 2-Dish cap; 3-Drainage tube; 301-Liquid inlet; 302-Liquid cavity; 303-Liquid outlet; 4-Liquid outlet section; 401-First guide hole; 5-Elastic seal; 6-Pushing component; 601-First push rod; 602-Sealing plate; 603-Second push rod; 604-Finger pressure cap; 7-Spring; 8-Liquid inlet section; 9-Guide plate; 901-Second port; 10-Push button; 1001-Anti-slip protrusion. Detailed Implementation

[0019] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0020] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings: Example 1 This embodiment is a first embodiment of a splash-proof diffusion dish, combined with Figures 1 to 3 As shown, it includes a dish body 1 and a dish lid 2. The inner cavity of the dish body 1 is divided into an inner chamber 102 and an outer chamber 103 by a partition ring 101. Further, the diffusion dish also includes a drainage tube 3 and a push button 10. The drainage tube 3 is connected to the outer chamber 103 and has a liquid inlet 301, a liquid cavity 302 and a liquid outlet 303. The liquid inlet 301 communicates with the liquid outlet 303 through the liquid cavity 302, and the liquid cavity 302 communicates with the outer chamber 103 through the liquid outlet 303. A first opening 104 is opened on the side wall of the dish body 1, and the liquid inlet 301 communicates with the first opening 104. The push button 10 is located outside the dish body 1 and is slidably connected to the dish body 1 along the axial direction of the dish body 1. The push button 10 can be slidable to close the first opening 104.

[0022] The working principle or workflow of this embodiment is as follows: During implementation, soil is placed in the outer chamber 103, and the indicator is placed in the inner chamber 102. The lid 2 is then placed on top. Next, the push button 10 is pushed down to open the first port 104, allowing alkali solution to be injected into the inlet 301 through the first port 104. After entering the liquid chamber 302, the alkali solution flows into the outer chamber 103 through the outlet 303. After the alkali solution is added, the push button 10 is pushed up to close the first port 104. By adding a drainage tube 3, the alkali solution can be directed to the outer chamber 103, preventing splashing into or accidental injection into the inner chamber 102.

[0023] Example 2 This embodiment is a second embodiment of a splash-proof diffusion dish. This embodiment is similar to Embodiment 1, except that it combines... Figures 1 to 6 As shown, the outlet 303 is located at the bottom of the drainage pipe 3, and an outlet pipe section 4 is connected to the outlet 303. The alkaline solution flows into the outer chamber 103 through the outlet pipe section 4. The outlet pipe section 4 is provided to prevent the alkaline solution from flowing into the inner chamber 102 along the outer wall of the drainage pipe 3.

[0024] During the experiment, ammonia gas released from the soil may enter the outlet pipe section 4 and the drainage pipe 3, potentially causing deviations in the experimental results. Therefore, a switch assembly is further included to open or close the outlet pipe section 4. When adding alkali solution to the inlet 301, the experimenter can operate the switch assembly to open the outlet pipe section 4, allowing the alkali solution to flow out. After the alkali solution is added, the switch assembly can be operated to close the outlet pipe section 4, preventing ammonia gas released from the soil during the experiment from entering the outlet pipe section 4 and the drainage pipe 3.

[0025] Furthermore, the switch assembly includes an elastic seal 5 and a pusher 6; a first guide hole 401 is provided on the side wall of the liquid outlet section 4; a second guide hole 105 is provided on the side wall of the vessel body 1; the pusher 6 is provided with a first push rod 601 and a second push rod 603, the first push rod 601 is slidably connected to the first guide hole 401 along its own axis, and a circular sealing piece 602 with a thicker center and thinner edges is connected to the end of the first push rod 601, the sealing piece 602 abuts against the inner wall of the liquid outlet section 4 and blocks the first guide hole 603. The first push rod 601 is closed to the through hole 401. One side of the elastic seal 5 is connected to the inner wall of the outlet pipe section 4, and the other side abuts against the sealing plate 602. In the initial state, the elastic seal 5 blocks the outlet pipe section 4. The second push rod 603 is slidably connected to the second guide through hole 105 along its own axis. When the second push rod 603 is pushed and moves inward along its own axis, the first push rod 601 drives the sealing plate 602 to compress the elastic seal 5, so that a gap is formed between the sealing plate 602 and the inner wall of the outlet pipe section 4, allowing liquid to pass through. In the initial state, the elastic seal 5 simultaneously squeezes the inner wall of the outlet pipe section 4 and the sealing plate 602, thereby blocking the outlet pipe section 4 to prevent ammonia from continuing to enter the outlet pipe section 4. Under the elastic force of the elastic seal 5, the sealing plate 602 is tightly attached to the inner wall of the outlet pipe section 4 and closes the first guide through hole 401. During or after adding alkali solution to the inlet 301, the experimenter can press the second push rod 603. The second push rod 603 transmits the force to the first push rod 601, thereby causing the sealing plate 602 to compress the elastic sealing element 5, creating a gap between the sealing plate 602 and the inner wall of the outlet pipe section 4, through which the alkali solution can flow out. After the pressure on the second push rod 603 is removed, the elastic sealing element 5 returns to its original state and continues to block the outlet pipe section 4. When the elastic sealing element 5 returns to its original state, it also pushes the sealing plate 602 back to its original position to close the first guide hole 401.

[0026] Furthermore, the switch assembly also includes a spring 7. A pressure cap 604 is provided at the end of the second push rod 603. The spring 7 is sleeved on the portion of the second push rod 603 located outside the dish body 1. One end of the spring 7 abuts against the outer periphery of the dish body 1, and the other end abuts against the pressure cap 604. Pressing the pressure cap 604 pushes the second push rod 603. When the pressure cap 604 is pressed, the spring 7 is compressed. After the pressure on the pressure cap 604 is removed, the spring 7 returns to its original state, driving the second push rod 603 to reset. This ensures that the first push rod 601 and the second push rod 603 can quickly reset after the external force is removed, thereby allowing the elastic seal 5 to quickly return to its original state and close the liquid outlet section 4.

[0027] Furthermore, a sealing soft rubber layer (not shown in the figure) is provided on the outer peripheral surface of the second push rod 603, and the sealing soft rubber layer is in contact with the inner wall of the second guide through hole 105. The sealing soft rubber layer can fit more closely with the second guide through hole 105, preventing ammonia gas from leaking between the second push rod 603 and the inner wall of the second guide through hole 105.

[0028] Furthermore, an inlet pipe section 8 is connected to the inlet 301, and the drain pipe 3 is provided with at least two outlets 303, located on opposite sides of the inlet 301. Each outlet 303 is connected to an outlet pipe section 4, and each outlet pipe section 4 is connected to a switch assembly. After injecting the alkaline solution into the outer chamber 103, the dish 1 needs to be shaken to mix the alkaline solution with the soil evenly. However, excessive shaking can easily cause the indicator in the inner chamber 102 to mix with the soil and alkaline solution in the outer chamber 103. Providing at least two outlets 303 allows for multi-point dripping of the alkaline solution, making the distribution of the alkaline solution more even, thereby reducing the shaking amplitude and lowering the risk of mixing between the contents of the inner chamber 102 and the outer chamber 103.

[0029] Other features, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 1.

[0030] Example 3 This embodiment is a third embodiment of a splash-proof diffusion dish. This embodiment is similar to Embodiment 2, except that, as Figure 2 and Figure 3 As shown, it also includes a guide plate 9, which is connected to the outside of the dish body 1. The guide plate 9 has a second port 901 that communicates with the first port 104. The push button 10 is slidably connected to the side of the guide plate 9 away from the dish body 1. The second port 901 is opened or closed by sliding the push button 10. The push button 10 is slidably connected to the dish body 1 through the guide plate 9, rather than being directly connected to the dish body 1, which can reduce the wear of the dish body 1.

[0031] Furthermore, the push button 10 is provided with multiple anti-slip protrusions 1001, the extension direction of which is perpendicular to the sliding direction of the push button 10. The anti-slip protrusions 1001 can increase the friction between the experimenter's fingers and the push button 10, making the push button 10 drive more smoothly and preventing slippage.

[0032] Furthermore, the lid 2 is threadedly connected to the body 1. This ensures a good seal between the lid 2 and the body 1, and also makes the installation and removal of the lid 2 relatively simple and quick.

[0033] Other features, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 2.

[0034] Example 4 This embodiment is similar to Embodiment 3, except that, see below. Figure 4 Two drainage tubes 3 are provided and are located on opposite sides of the outer chamber 103.

[0035] Other features, working principles, and beneficial effects of this embodiment are the same as those of Embodiment 3.

[0036] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description, and it is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A splash-proof diffusion dish, comprising a dish body (1) and a dish lid (2), wherein the inner cavity of the dish body (1) is divided into an inner chamber (102) and an outer chamber (103) by a partition ring (101), characterized in that, It also includes a drainage tube (3) and a push button (10). The drainage tube (3) is connected to the outer chamber (103). The drainage tube (3) is provided with an inlet (301), a liquid chamber (302) and an outlet (303). The inlet (301) is connected to the outlet (303) through the liquid chamber (302). The liquid chamber (302) is connected to the outer chamber (103) through the outlet (303). A first opening (104) is provided on the side wall of the dish body (1). The inlet (301) is connected to the first opening (104). The push button (10) is located outside the dish body (1) and is slidably connected to the dish body (1). The push button (10) can be slid to close the first opening (104).

2. The anti-splash diffusion dish according to claim 1, characterized in that, The outlet (303) is located at the bottom of the drainage tube (3), and an outlet tube section (4) is connected to the outlet (303).

3. The anti-splash diffusion dish according to claim 2, characterized in that, It also includes a switch assembly for opening or closing the outlet pipe section (4).

4. The anti-splash diffusion dish according to claim 3, characterized in that, The switch assembly includes an elastic seal (5) and a pusher (6); a first guide hole (401) is provided on the side wall of the liquid outlet section (4); a second guide hole (105) is provided on the side wall of the dish body (1); the pusher (6) is provided with a first push rod (601) and a second push rod (603), the first push rod (601) is slidably connected to the first guide hole (401) along its own axis, and a sealing piece (602) is connected to the end of the first push rod (601), the sealing piece (602) sealing the first guide hole (401); the elastic seal One side of (5) is connected to the inner wall of the liquid outlet pipe section (4), and the other opposite side abuts against the sealing piece (602). The elastic sealing piece (5) blocks the liquid outlet pipe section (4) in the initial state. The second push rod (603) and the second guide hole (105) are slidably connected along their own axis. When the second push rod (603) is pushed and moves inward along its own axis, the first push rod (601) drives the sealing piece (602) to compress the elastic sealing piece (5), so that a gap for liquid to pass through is formed between the sealing piece (602) and the inner wall of the liquid outlet pipe section (4).

5. A splash-proof diffusion dish according to claim 4, characterized in that, The switch assembly also includes a spring (7), and the end of the second push rod (603) is provided with a finger pressure cap (604). The spring (7) is sleeved on the part of the second push rod (603) located outside the dish body (1). One end of the spring (7) abuts against the outer periphery of the dish body (1), and the other end abuts against the finger pressure cap (604).

6. A splash-proof diffusion dish according to claim 4, characterized in that, The outer peripheral surface of the second push rod (603) is provided with a sealing soft rubber layer, which is in contact with the inner wall of the second guide through hole (105).

7. A splash-proof diffusion dish according to claim 3, characterized in that, The inlet (301) is connected to an inlet pipe section (8), and the drain pipe (3) is provided with at least two outlets (303). At least two outlets (303) are located on opposite sides of the inlet (301), and each outlet (303) is connected to an outlet pipe section (4); each outlet pipe section (4) is connected to the switch assembly.

8. A splash-proof diffusion dish according to claim 1, characterized in that, It also includes a guide plate (9), which is connected to the outside of the dish body (1). The guide plate (9) is provided with a second port (901) that communicates with the first port (104). The push button (10) is slidably connected to the side of the guide plate (9) away from the dish body (1). The second port (901) is opened or closed by sliding the push button (10).

9. A splash-proof diffusion dish according to claim 1, characterized in that, The push button (10) is provided with multiple anti-slip protrusions (1001), and the extension direction of the anti-slip protrusions (1001) is perpendicular to the sliding direction of the push button (10).

10. A splash-proof diffusion dish according to any one of claims 1 to 9, characterized in that, The lid (2) is threadedly connected to the body (1).

Images