Airtight flowerpot capable of collecting gas

Abstract

The utility model discloses a closed flowerpot capable of collecting gas, and belongs to the technical field of gas collection. The closed flowerpot capable of collecting the gas comprises a first pot body used for planting a plant needing to be monitored, the first pot body is made of a plastic material, the first pot body is sleeved with a second pot body, a top cover is arranged on the top of the second pot body in a buckled mode, a penetrating through hole is formed in the middle of the top cover, and a pair of gas guide pipes are arranged on the top cover; the pair of air guide pipes are vertically arranged on the pair of semicircular discs in a penetrating mode respectively, one end of each air guide pipe is located in the second pot body, one air guide pipe is an air inlet, the other air guide pipe is an air outlet, the air inlets are used for conveying treated air, and air released by soil and plants is collected through the air outlets. After the experiment is completed, the second pot body is opened, the first pot body is cut open, all plant roots can be completely taken out, indexes such as root exudates which can only be measured by living plants can be completed, the accuracy of data is ensured, meanwhile, the second pot body can be recycled, and the cost is reduced.

Description

A sealed flowerpot for collecting gas Technical Field

[0001] This utility model relates to the field of gas collection technology, specifically to a sealed flowerpot for collecting gas. Background Technology

[0002] The effect of plant roots on the decomposition of soil organic matter is called the rhizosphere stimulating effect. Sealed flower pots are an effective device for collecting CO2 released from the decomposition of plant roots and soil organic matter. By measuring the CO2 content and abundance, isotope analysis technology can be used to distinguish its source (roots and soil), thereby revealing the intensity of the rhizosphere stimulating effect of plants on soil.

[0003] Currently, CO2 collection devices typically involve directly wrapping the plant roots in a container, sealing the bottom of the tube with a disc, and placing a sandbag at the bottom for ventilation. The ventilation tube port is wrapped with sponge, and then a sandbag is placed on top to prevent blockage, forming a sealed air chamber. This method involves the disassembly and assembly of components such as silicone seals and miniature vacuum pump valve controls, making the operation complex.

[0004] Furthermore, after the experiment, the plants need to be directly removed from the container, which damages the root system and may lead to significant errors in data regarding the physicochemical properties and functional traits of the roots. Additionally, root exudates are an important indicator of rhizosphere excitation effects, but their measurement requires a living plant. Existing methods easily damage the root system when removing the plant, potentially reducing the accuracy of some in vivo measurements. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems in the prior art and provide a sealed flowerpot for collecting gas, allowing the plant roots to be completely removed after the experiment is completed.

[0006] This utility model provides a sealed flowerpot for collecting gas, including a first pot body for planting the plant to be monitored. The first pot body is made of plastic. A second pot body is fitted around the outside of the first pot body. A top cover is attached to the top of the second pot body. The top cover is composed of two semi-circular discs. The top cover and the second pot body form a sealed environment. A through hole is opened in the middle of the top cover, through which the plant stem passes. A pair of air guide tubes are provided on the top cover. The pair of air guide tubes are vertically inserted through the pair of semi-circular discs and communicate with the outside. One end is located in the second pot body. One of the pair of air guide tubes is an air inlet and the other is an air outlet, forming a gas circulation channel.

[0007] Preferably, a sealing ring is fixedly connected to the lower side of the top cover, and a sealing groove that mates with the sealing ring is provided on the inner side wall of the second basin.

[0008] Preferably, a sealing gasket is fitted at the engagement point between the top cover and the second basin body.

[0009] Preferably, the gap between the second basin and the top cover is filled with hot melt adhesive.

[0010] Preferably, the through hole is bonded to the plant stem using a plastic sealant.

[0011] Preferably, the second basin is provided with a support, the support including a support plate and several support legs, the several support legs are vertically fixedly connected to the bottom of the support plate, and the support plate has evenly distributed ventilation holes to facilitate ventilation.

[0012] Preferably, the second basin, the top cover, and the bracket are all made of polymethyl methacrylate.

[0013] Compared with existing technologies, the advantages of this invention are as follows: This invention provides a sealed flowerpot for collecting gas. During experiments, CO2-removed air is delivered to a second pot through an air inlet. CO2 released from the plant roots and soil in the first pot is released through an air outlet and collected by a NaOH solution connected to the outside. After the experiment, the sealed second pot is opened, and the first pot is removed and cut open. This not only allows for the measurement of indicators such as root exudates, which require living plants, but also enables the relatively complete and rapid collection of plant roots. Furthermore, the second pot can be reused, reducing expenses. Attached Figure Description

[0014] Figure 1 is a schematic cross-sectional view of the present invention.

[0015] Figure 2 is a schematic diagram of the overall structure of this utility model.

[0016] Figure 3 is a schematic diagram of the support structure of this utility model.

[0017] Figure 4 is a schematic diagram of the ventilation hole layout structure of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. First basin; 2. Second basin; 3. Top cover; 4. Air duct; 41. Air inlet; 42. Air outlet; 5. Support; 51. Support plate; 52. Support leg; 6. Vent hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the accompanying drawings of Figures 1-4 will be used to clearly and completely describe the technical solutions of the embodiments of this utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this utility model pertains.

[0020] The terms "first," "second," and similar words used in this utility model patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Words such as "comprising" or "including" indicate that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," "lower," "far," "near," "front," and "rear" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in this utility model are not strictly drawn to scale; the specific dimensions and quantity of each structure can be determined according to actual needs. The drawings described in this utility model are merely structural schematic diagrams.

[0021] This utility model provides a sealed flowerpot for collecting gas, as shown in Figures 1 and 2. It includes a first pot body 1 for planting the plants to be tested. The first pot body 1 is made of plastic. A second pot body 2 is fitted on the outside of the first pot body 1. A top cover 3 is attached to the top of the second pot body 2. The top cover 3 is composed of two semi-circular discs. The top cover 3 and the second pot body 2 form a sealed environment. A through hole is opened in the middle of the top cover 3, through which the plant roots pass. A pair of air guide tubes 4 are provided on the top cover 3. The pair of air guide tubes 4 are vertically installed on the pair of semi-circular discs and communicate with the outside. One end is located inside the second pot body 2. One of the pair of air guide tubes 4 is an air inlet 41 and the other is an air outlet 42, forming a gas circulation channel.

[0022] In this embodiment, the second basin 2 is a cylinder with an upper bottom diameter of 36 cm, a lower bottom diameter of 29.6 cm, a height of 45 cm, a bottom thickness of 1 cm, and a wall thickness of 0.5 cm. The top cover 3 is a semi-circular top cover with a diameter of 37 cm and a height of 0.5 cm. The lower edge of the top cover 3 has a sealing edge extending inward by 0.5 cm and a height of 0.5 cm. The top cover 3 has a pipe-type air guide tube 4 with an outer diameter of 0.8 cm and an inner diameter of 0.6 cm, protruding 33 cm above the top cover. A 5 cm through hole is left in the center of the top cover 3. A plastic sealant is used to adapt to plants with different stem thicknesses so that the plant stem can extend out of the second basin 2. Air with CO2 removed is delivered to the second basin 2 through the air inlet 41. The plant roots and soil in the first basin 1 release CO2-containing gas, which is delivered out through the air outlet 42 and collected by a NaOH solution connected to the outside. After the experiment is completed, the sealed second pot 2 is opened and the first pot 1 is taken out and cut open. This not only allows for the measurement of indicators that require living plants, such as root exudates, but also allows for the collection of plant roots more completely and quickly. In addition, the second pot 2 can be reused, reducing expenses.

[0023] In this embodiment, the designed air guide tube 4 can be wrapped with a large-diameter hose or connected directly to the bottom of the container with a small-diameter hose. Both sealing methods are simple and easy to operate and can be reused. The plastic of the first basin 1 is a common material that is easy to cut.

[0024] Preferably, as shown in Figures 1 and 2, a sealing ring is fixedly connected to the lower side of the top cover 3, a sealing groove that cooperates with the sealing ring is opened on the inner side wall of the second basin 2, and a sealing gasket is fitted at the fastening point between the top cover 3 and the second basin 2.

[0025] In this embodiment, the sealing connection between the top cover 3 and the second basin 2 is increased by the sealing ring and sealing groove, providing a sealed environment for the experiment. The sealing gasket further enhances the sealing performance between the top cover 3 and the second basin 2.

[0026] Preferably, as shown in Figures 1 and 2, the gap between the second basin 2 and the top cover 3 is filled with hot melt adhesive.

[0027] In this embodiment, hot melt adhesive is used to fully fill the gap between the second pot body 2 and the top cover 3, and the hot melt adhesive can play a fixing role, so that the top cover 3 will not collapse due to low internal pressure even when the second flower pot is in a vacuum state.

[0028] Preferably, as shown in Figures 1 and 2, the through hole is bonded to the plant stem using a plastic sealant.

[0029] In this embodiment, not all plant roots and stems are located in the center of the flowerpot, and rubber tubes cannot be inserted through the stems and leaves. Therefore, a plastic sealant is used for bonding. This sealant is inexpensive, easy to use, and highly malleable, and can fully fill the gap between the plant stem and the top cover 3.

[0030] Preferably, as shown in Figures 1 to 4, the second basin 2 is provided with a support 5. The support 5 includes a support plate 51 and several support legs 52. The several support legs 52 are all vertically fixedly connected to the bottom of the support plate 51. The support plate 51 has evenly distributed ventilation holes 6 to facilitate ventilation.

[0031] In this embodiment, the design of the bracket 5 increases the air circulation efficiency inside the container and allows ventilation at the bottom of the first basin 1, better facilitating the subsequent replacement of air in the second basin 2. The bracket 5 is made of transparent acrylic and is 10 cm high. The support plate 51 is 1 cm thick and has evenly distributed ventilation holes 6. The bottom support part consists of eight support legs 52 with a diameter of 2 cm and a height of 9 cm, evenly distributed at the bottom of the support plate 51. In use, it is placed in the middle area inside the second basin 2 so that the first basin 1 can be suspended inside the second basin 2, allowing the gas at the bottom of the first basin 1 to easily enter and exit.

[0032] Preferably, as shown in Figure 1, the second basin 2, the top cover 3, and the support 5 are all made of polymethyl methacrylate.

[0033] In this embodiment, the second basin 2, the top cover 3, and the support 5 are all made of polymethyl methacrylate, making the inside of the bucket transparent and visible, so that it can be viewed in real time when the device is set up.

[0034] The method of using the gas-collecting sealed flowerpot of this invention is as follows:

[0035] When in use, place the support 5 inside the second pot 2, and use several support legs 52 to stably support the support plate 51. Then place the first pot 1 with the plant on the support plate 51.

[0036] Attach the top cover 3 to the top of the second pot body 2, use a sealing gasket to fix the top cover 3 to the second pot body 2, then use hot melt adhesive to fill the gaps between the second pot body 2 and the top cover 3, and the pair of semi-circular top covers 3 to achieve a sealing effect, and then use plastic sealant to bond the central hole to the plant stem to achieve a sealing effect.

[0037] The experimental gas is introduced into the second pot 2 through the air inlet 41 for the experiment. After the experiment is completed, the top cover 3 is separated from the second pot 2, and the first pot 1 is taken out and cut to completely remove the plant root system.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealed flowerpot for collecting gas, characterized in that, include: The first basin (1) is used to grow the plants to be monitored. The first basin (1) is made of plastic. The second basin (2) is fitted on the outside of the first basin (1). The top cover (3) is attached to the top of the second basin (2). The top cover (3) is composed of two semi-circular discs. The top cover (3) and the second basin (2) form a sealed environment. A through hole is opened in the middle of the top cover (3) and the plant stem passes through the through hole. A pair of air guide pipes (4) are provided. The pair of air guide pipes (4) are vertically installed on the pair of semi-circular discs and communicate with the outside. One end is located inside the second basin (2). One of the pair of air guide pipes (4) is an air inlet (41) and the other is an air outlet (42), forming a gas circulation channel.

2. The sealed flowerpot for collecting gas as described in claim 1, characterized in that, A sealing ring is fixedly connected to the lower side of the top cover (3), and a sealing groove that cooperates with the sealing ring is opened on the inner wall of the second basin (2).

3. A sealed flowerpot for collecting gas as described in claim 2, characterized in that, A sealing gasket is fitted at the connection between the top cover (3) and the second basin (2).

4. A sealed flowerpot for collecting gas as described in claim 2, characterized in that, The gap between the second basin (2) and the top cover (3) is filled with hot melt adhesive.

5. A sealed flowerpot for collecting gas as described in claim 1, characterized in that, The through hole is bonded to the plant stem using a plastic sealant.

6. A sealed flowerpot for collecting gas as described in claim 1, characterized in that, The second basin (2) is provided with a support (5), the support (5) includes a support plate (51) and several support legs (52), the several support legs (52) are vertically fixedly connected to the bottom of the support plate (51), the support plate (51) has ventilation holes (6) evenly distributed, and the first basin (1) is placed on the support plate (51).

7. A sealed flowerpot for collecting gas as described in claim 6, characterized in that, The second basin (2), the top cover (3) and the bracket (5) are all made of polymethyl methacrylate.

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