Seedling photosynthesis tester

Abstract

The utility model discloses a seedling photosynthesis tester which comprises a water tank and a sealing cover, a discharging groove is formed in the middle of the top of the water tank, a photosynthesis tester body is arranged on one side of the water tank, and a connecting pipe connected with the sealing cover is arranged on the top of the photosynthesis tester body. A clamping groove is formed in the outer side, close to the discharging groove, of the top of the water tank; according to the seedling photosynthesis detection device, the sealing cover, the clamping groove, the through hole, the sealing groove, the annular plate and the sealing ring are matched with one another, so that when the seedling photosynthesis detection device is used for detecting seedling photosynthesis, after a seedling planting pot is placed in the feeding groove, the sealing cover is directly buckled into the clamping groove, the bottom of the sealing cover can be soaked in water, and the sealing cover is sealed for the first time through water flow; and meanwhile, the sealing ring can be buckled into the sealing groove to perform secondary sealing on the sealing cover, so that the sealing effect is better through the two sealing, and the test accuracy of the seedlings can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of photosynthesis testers, in particular to a seedling photosynthesis tester. Background Art

[0002] Photosynthesis usually refers to the process in which green plants absorb light energy, convert carbon dioxide and water into energy-rich organic matter, and release oxygen at the same time. It mainly includes two stages: light reaction and dark reaction, involving important reaction steps such as light absorption, electron transfer, photosynthetic phosphorylation, and carbon assimilation. It is of great significance to achieve energy conversion in nature and maintain the carbon-oxygen balance of the atmosphere. When cultivating seedlings, it is necessary to test the photosynthesis ability of the seedlings through a photosynthesis tester;

[0003] The patent with the existing authorization announcement number "CN210863665U" discloses a seedling photosynthesis tester, including a tester body, a rubber pad, a left bottom frame, a right bottom frame and an upper cover, wherein the rubber pad is composed of a left rubber pad and a right rubber pad, and the right side of the left rubber pad and the left side of the right rubber pad are both provided with arc-shaped openings, and the arc-shaped openings on the left rubber pad and the right rubber pad cooperate to form a circular through hole. The utility model has a simple structure and is easy to install and detect. The removable double-sided rubber pad is tightly connected with the top surface of the water tank and the bottom surface of the upper cover to form a sealed space inside the upper cover, and then the detector is used to detect the changes in oxygen and carbon dioxide inside the upper cover, so as to detect the photosynthesis of the seedlings, and the detection accuracy is high; the plants are covered by the upper cover to avoid damage to the plants;

[0004] However, there are the following deficiencies in this device:

[0005] When testing the photosynthesis of seedlings, it is necessary to ensure the sealing effect of the seedlings. When the above device is used to test the seedlings, the sealing effect of the upper cover connection is poor, and air leakage is prone to occur, which will greatly affect the test results of the device. Utility Model Content

[0006] The purpose of the utility model is to provide a seedling photosynthesis tester to solve the existing problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seedling photosynthesis tester, comprising a water tank and a sealing cover, a discharge trough is arranged in the middle of the top of the water tank, a photosynthesis tester body is arranged on one side of the water tank, a connecting pipe connected to the sealing cover is arranged on the top of the photosynthesis tester body, a card slot is arranged on the outside of the top of the water tank near the discharge trough, through holes are evenly opened on the bottom of the outer side and the inner side of the card slot, and a liquid level reminder component is arranged on one side of the top of the water tank;

[0008] The liquid level reminder assembly includes a float, a guide rod, a mounting plate, a warning light, an electric contact A and an electric contact B. A guide rod is sleeved on one side of the top of the water tank, a mounting plate is provided on the top of the guide rod, a warning light is provided on the top of the mounting plate, an electric contact A is provided on one side of the bottom of the mounting plate, an electric contact B is provided on one side of the top of the water tank, and electric contact B is located directly below electric contact A. The bottom of the guide rod extends into the interior of the water tank and is provided with a float, which can remind staff when the liquid level in the water tank is too low.

[0009] Preferably, an annular plate is provided at the bottom of the outer side of the sealing cover, a sealing ring is provided at the bottom of the annular plate, and a sealing groove matching with the sealing ring is provided at the outer side of the card slot near the top of the water tank, which can improve the sealing effect of the sealing cover.

[0010] Preferably, the bottom of the sealing cover is in an arc shape, and an arc groove is provided at the bottom of the inner side of the card slot, which can improve the sealing effect.

[0011] Preferably, a water adding pipe is provided at the top of one side of the water tank, and a sealing cover is provided on the outer side of the water adding pipe to facilitate adding water into the water tank.

[0012] Preferably, the sealing cover is made of transparent glass to ensure that the seedlings in the sealing cover can be exposed to sunlight.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the seedling photosynthesis tester;

[0014] 1. Through the mutual cooperation among the sealing cover, the card slot, the through hole, the sealing slot, the annular plate and the sealing ring, when the device is used to detect the photosynthesis of seedlings, the seedling planting pot can be placed in the discharge slot, and the sealing cover can be directly buckled into the card slot, and the bottom of the sealing cover can be immersed in water, and the sealing cover is sealed by the water flow for the first time, and the sealing ring can be buckled into the sealing slot at the same time, and the sealing cover is sealed for the second time. Through the two-step sealing, the sealing effect is better, which can ensure the test accuracy of the seedlings;

[0015] 2. Through the cooperation between the float, guide rod, mounting plate, warning light, electric contact block A and electric contact block B, when the liquid level in the water tank is too low to achieve a sealing effect, the float moves down with the liquid level and automatically starts the warning light to remind the staff, so as to facilitate timely replenishment of the water flow in the water tank and prevent the sealing effect of the device from being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is the front view of the utility model;

[0018] Figure 3For the utility model Figure 2 A schematic diagram of the structure at A;

[0019] Figure 4 For the utility model Figure 2 Enlarged schematic diagram of the structure at B.

[0020] In the figure: 1. water tank; 2. photosynthesis tester body; 3. connecting pipe; 4. sealing cover; 5. card slot; 6. discharge slot; 7. through hole; 8. sealing slot; 9. annular plate; 10. sealing ring; 11. floating block; 12. guide rod; 13. mounting plate; 14. warning light; 15. electric contact block A; 16. electric contact block B. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 , the utility model provides an embodiment: a seedling photosynthesis tester, comprising a water tank 1 and a sealing cover 4, a discharge trough 6 is arranged in the middle of the top of the water tank 1, a water adding pipe is arranged on the top of one side of the water tank 1, and a sealing cover is arranged on the outer side of the water adding pipe, which is convenient for adding water into the water tank 1, and the sealing cover 4 is made of transparent glass to ensure that the seedlings in the sealing cover 4 can be exposed to sunlight, a photosynthesis tester body 2 is arranged on one side of the water tank 1, a connecting pipe 3 connected to the sealing cover 4 is arranged on the top of the photosynthesis tester body 2, a card slot 5 is arranged on the outer side of the discharge trough 6 at the top of the water tank 1, and through holes 7 are evenly opened on the outer and inner bottoms of the card slot 5, and a liquid level reminder component is arranged on one side of the top of the water tank 1;

[0023] The liquid level reminder assembly includes a float 11, a guide rod 12, a mounting plate 13, a warning light 14, an electric contact A15 and an electric contact B16. A guide rod 12 is sleeved on one side of the top of the water tank 1, a mounting plate 13 is provided on the top of the guide rod 12, a warning light 14 is provided on the top of the mounting plate 13, an electric contact A15 is provided on one side of the bottom of the mounting plate 13, an electric contact B16 is provided on one side of the top of the water tank 1, and the electric contact B16 is located directly below the electric contact A15. The bottom of the guide rod 12 extends into the interior of the water tank 1 and is provided with a float 11, which can remind the staff when the liquid level in the water tank 1 is too low.

[0024] Furthermore, an annular plate 9 is provided at the bottom of the outer side of the sealing cover 4, and a sealing ring 10 is provided at the bottom of the annular plate 9. A sealing groove 8 matching with the sealing ring 10 is opened at the outer side of the top of the water tank 1 near the card slot 5. When the sealing cover 4 is inserted into the card slot 5, the annular plate 9 can be stuck on the top of the water tank 1, and the sealing ring 10 can be buckled into the sealing groove 8, thereby further improving the sealing performance inside the sealing cover 4.

[0025] Furthermore, the bottom of the sealing cover 4 is arc-shaped, and an arc-shaped groove is provided at the bottom inside the card slot 5. When the sealing cover 4 is inserted into the card slot 5, its bottom can be inserted into the arc-shaped groove to enhance the fitting area and improve the sealing effect.

[0026] Working principle: When testing the photosynthesis of seedlings, first add enough water to the water tank 1, then put the seedling planting pot into the discharge trough 6, and after placing the seedlings, buckle the sealing cover 4 into the card slot 5. At this time, the water in the water tank 1 flows into the card slot 5 through the through hole 7, and the bottom of the sealing cover 4 can be immersed in water, thereby ensuring the sealing of the inner side of the sealing cover 4. At the same time, the annular plate 9 can be stuck on the top of the water tank 1, and the sealing ring 10 can be buckled into the sealing groove 8, further improving the sealing inside the sealing cover 4. After the sealing inside the sealing cover 4 is completed, the oxygen and carbon dioxide in the sealing cover 4 can be detected through the photosynthesis tester body 2, thereby completing the detection of the photosynthesis of the seedlings;

[0027] When the device is in use, the float 11 can rise and fall with the liquid level in the water tank 1. When the liquid level in the water tank 1 is too low to achieve a sealing effect, the float 11 moves downward with the liquid level and can drive the mounting plate 13 to move downward through the guide rod 12. Then the mounting plate 13 drives the electric contact A15, so that the electric contact A15 contacts the electric contact B16 and automatically starts the warning light 14 to remind the staff, so as to replenish the water flow in the water tank 1 in time and prevent the sealing effect of the device from being affected.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A seedling photosynthesis tester, comprising a water tank (1) and a sealing cover (4), characterized in that: A discharge trough (6) is arranged in the middle of the top of the water tank (1), a photosynthesis tester body (2) is arranged on one side of the water tank (1), a connecting pipe (3) connected to a sealing cover (4) is arranged on the top of the photosynthesis tester body (2), a card slot (5) is arranged on the outside of the discharge trough (6) near the top of the water tank (1), through holes (7) are evenly opened at the bottom of the outside and inside of the card slot (5), and a liquid level reminder component is arranged on one side of the top of the water tank (1); The liquid level reminder assembly comprises a float (11), a guide rod (12), a mounting plate (13), a warning light (14), an electric contact block A (15) and an electric contact block B (16); the guide rod (12) is sleeved on one side of the top of the water tank (1); the mounting plate (13) is arranged on the top of the guide rod (12); the warning light (14) is arranged on the top of the mounting plate (13); the electric contact block A (15) is arranged on one side of the bottom of the mounting plate (13); the electric contact block B (16) is arranged on one side of the top of the water tank (1), and the electric contact block B (16) is located directly below the electric contact block A (15); the bottom of the guide rod (12) extends into the interior of the water tank (1) and is provided with the float (11).

2. A seedling photosynthesis tester according to claim 1, characterized in that: An annular plate (9) is provided at the bottom of the outer side of the sealing cover (4), a sealing ring (10) is provided at the bottom of the annular plate (9), and a sealing groove (8) matching with the sealing ring (10) is provided at the top of the water tank (1) near the outer side of the card slot (5).

3. A seedling photosynthesis tester according to claim 1, characterized in that: The bottom of the sealing cover (4) is in an arc shape, and an arc groove is provided at the bottom of the inner side of the clamping groove (5).

4. A seedling photosynthesis tester according to claim 1, characterized in that: A water supply pipe is arranged on the top of one side of the water tank (1), and a sealing cover is arranged on the outside of the water supply pipe.

5. A seedling photosynthesis tester according to claim 1, characterized in that: The sealing cover (4) is made of transparent glass.

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