A device with adjustable local light intensity for studying the phototropism of algae

Abstract

The present invention discloses a device for studying the phototropism law of algae with adjustable local light intensity, which specifically relates to the technical field of algae phototropism, including a base and a channel, a groove is provided at the bottom of the inner cavity of the base, a modulator is provided at the bottom of the inner cavity of the groove, an LED light source is fixedly connected to the top of the modulator, a developing white paper is placed at the bottom of the inner cavity of the base, a channel is placed on the top of the developing white paper, a sealing ring is fixedly connected to the outer wall of the top of the channel, a cover sheet is fitted inside the sealing ring, the bottom of the cover sheet is fitted with the top of the channel, fixed blocks are fixedly connected to both sides of the inner cavity of the base, and a sliding sleeve is embedded on the top of the fixed block. The present invention uses the channel and the cover sheet to measure the aggregation of algae by using the projection grayscale of the LED light source on the developing white paper, which is convenient for observing the phototropism distance of the algae, and can intuitively observe the phototropism of the algae. Compared with microscope observation, the observation limitation is significantly reduced, and the use needs are met.

Description

Technical Field

[0001] The invention relates to the technical field of algae phototropism, and more specifically to a device with adjustable local light intensity for studying the law of algae phototropism. Background Art

[0002] Algae outbreaks are one of the biggest problems plaguing China's water environment. In addition to physical factors and exogenous pollutants, the physiological characteristics of algae themselves are also an important reason for their outbreaks. Studies have found that algae have phototropism, which allows algae cells to migrate vertically to an optimal growth position to form an aggregation layer, improving the algae's ability to adapt to high temperature and high light. Not only that, phototropism also expands the range of nutrients used by algae and promotes algae outbreaks. In view of the current status of surface water pollution, systematic research on the phototropism of microalgae and its environmental effects is of great significance for the prediction and control of algae outbreak risks.

[0003] Studying the phototaxis of algae in a laboratory environment is the first step in using phototaxis to control algae. It is particularly important to design experimental equipment and methods reasonably. Algae are relatively small and generally need to be observed under a microscope. The use of a microscope also limits the changes in phototaxis experimental equipment and experimental conditions. It is particularly important to develop an intuitive device for studying the phototaxis of algae. Therefore, there is an urgent need for a device that is convenient for studying the phototaxis of algae. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a device with adjustable local light intensity for studying the phototaxis of algae. The technical problem to be solved by the present invention is that algae are relatively small and generally need to be observed under a microscope. The use of a microscope also limits the changes in phototaxis experimental equipment and experimental conditions. Therefore, it is particularly important to develop an intuitive device for studying the phototaxis of algae. A device is needed that is convenient for studying the phototaxis of algae.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device with adjustable local light intensity for studying the phototropism of algae, comprising a base and a channel, a groove is provided at the bottom of the inner cavity of the base, a modulator is provided at the bottom of the inner cavity of the groove, an LED light source is fixedly connected to the top of the modulator, a developing white paper is placed at the bottom of the inner cavity of the base, a channel is placed on the top of the developing white paper, a sealing ring is fixedly connected to the outer wall of the top of the channel, a cover sheet is fitted inside the sealing ring, and the bottom of the cover sheet is fitted to the top of the channel;

[0006] Fixed blocks are fixedly connected on both sides of the inner cavity of the base, a sliding sleeve is embedded on the top of the fixed block, a sliding rod is slidably connected in the sliding sleeve, an extrusion plate is fixedly connected to the bottom of the sliding rod, the bottom and one side of the extrusion plate are respectively in contact with the developing white paper and one side of the channel, a handle is fixedly connected to the top of the sliding rod, a spring is provided on the outer wall of the sliding rod, and two ends of the spring are respectively fixedly connected to the handle and corresponding positions on both sides of the sliding sleeve.

[0007] The linear channel and cover are both made of resin glass. The LED light source is equipped with a modulator that can adjust the wavelength and intensity of the light source. The cover and channel are disinfected with alcohol, and the channel is filled with algae liquid and covered with a cover. The bottom LED light source emits light to observe the phototaxis of the algae. White developing paper is laid under the inner cavity of the base. Under the same photographic conditions, the projection grayscale of the LED light source on the developing white paper is used to measure the aggregation of algae. At the same time, a scale can be set on the front of the cover to facilitate the observation of the phototaxis distance of the algae. The phototaxis of the algae can be observed intuitively, which significantly reduces the observation limitations compared to microscope observation and meets the needs of use.

[0008] In a preferred embodiment, the width and length of the cover sheet are equal to the width and length of the cover sheet.

[0009] In a preferred embodiment, a plurality of scale lines are provided on the top of the cover sheet.

[0010] In a preferred embodiment, fixing plates are fixedly connected to both sides of the modulator, and the fixing plates are fixedly connected to the bottom of the inner cavity of the groove via fixing bolts.

[0011] In a preferred embodiment, the cross-sectional shapes of the sliding rod and the sliding sleeve are both circular.

[0012] In a preferred embodiment, the cross-sectional shape of the extruded plate is L-shaped, and the width of the extruded plate is smaller than the width of the inner cavity of the base.

[0013] In a preferred embodiment, support legs are fixedly connected to the four corners of the bottom of the base.

[0014] In a preferred embodiment, a plurality of protrusions are fixedly connected to both sides of the inner cavity of the sealing ring, and the protrusions are in contact with one side of the cover plate.

[0015] 1. The present invention uses a channel and a cover sheet, and disinfects the cover sheet and the channel with alcohol. After the algae liquid is filled in the channel, the cover sheet is covered, and the LED light source at the bottom emits light to observe the phototropism of the algae. A developing white paper is laid under the inner cavity of the base, and the projection grayscale of the LED light source on the developing white paper is used to measure the aggregation of the algae. At the same time, a scale can be set on the front of the cover sheet to facilitate the observation of the phototropism distance of the algae. The phototropism of the algae can be observed intuitively, which significantly reduces the observation limitation compared to microscope observation and meets the use needs;

[0016] 2. The present invention provides an extrusion plate, so that the channel and the developing white paper at the bottom can be squeezed and fixed by the extrusion plate, and the white paper and the channel can be disassembled by pulling the handle to drive the sliding rod and the extrusion plate to move, so that the channel and the cover plate can be effectively and conveniently cleaned and disinfected, and the cover plate is fit and squeezed and fixed in the inner cavity of the sealing ring by the protrusion, which facilitates disassembly and replacement while improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention.

[0018] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of part A in the middle.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the extruded plate of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the sealing ring of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the cover plate of the present invention.

[0022] The accompanying drawings are marked as follows: 1 base, 2 developing white paper, 3 channel, 4 sealing ring, 5 bump, 6 cover plate, 7 scale line, 8 modulator, 9 LED light source, 10 groove, 11 fixing plate, 12 supporting leg, 13 fixing block, 14 sliding sleeve, 15 sliding rod, 16 spring, 17 handle, 18 extrusion plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The present invention provides a device with adjustable local light intensity for studying the phototropism of algae, comprising a base 1 and a channel 3. A groove 10 is provided at the bottom of the inner cavity of the base 1, a modulator 8 is provided at the bottom of the inner cavity of the groove 10, an LED light source 9 is fixedly connected to the top of the modulator 8, a developing white paper 2 is placed at the bottom of the inner cavity of the base 1, a channel 3 is placed on the top of the developing white paper 2, a sealing ring 4 is fixedly connected to the outer wall of the top of the channel 3, a cover sheet 6 is fitted inside the sealing ring 4, and the bottom of the cover sheet 6 is fitted to the top of the channel 3.

[0025] The width and length of the cover plate 6 are equal to the width and length of the cover plate 6, and a plurality of scale lines 7 are provided on the top of the cover plate 6. Fixed plates 11 are fixedly connected on both sides of the modulator 8, and the fixed plates 11 are fixedly connected to the bottom of the inner cavity of the groove 10 through fixing bolts. Support legs 12 are fixedly connected at the four corners of the bottom of the base 1.

[0026] like Figure 1 and 5 As shown, the implementation method is specifically as follows: the linear channel 3 and the cover sheet 6 are both made of resin glass, the LED light source 9 is equipped with a modulator 8 that can adjust the wavelength and light intensity of the light source, the cover sheet 6 and the channel 3 are disinfected with alcohol, the channel 3 is filled with algae liquid, and then the cover sheet 6 is covered. The bottom LED light source 9 emits light to observe the phototaxis of the algae, and a developing white paper 2 is laid under the inner cavity of the base 1. Under the same photographing conditions, the aggregation of the algae is calculated by the projection grayscale of the LED light source 9 on the developing white paper 2. At the same time, a scale can be set on the front of the cover sheet 6 to facilitate the observation of the phototaxis distance of the algae. The phototaxis of the algae can be observed intuitively, which significantly reduces the observation limitation compared to microscope observation and meets the use needs.

[0027] Fixed blocks 13 are fixedly connected to both sides of the inner cavity of the base 1, a sliding sleeve 14 is embedded on the top of the fixed block 13, a sliding rod 15 is slidably connected in the sliding sleeve 14, and an extrusion plate 18 is fixedly connected to the bottom of the sliding rod 15. The bottom and one side of the extrusion plate 18 are respectively fitted with the developing white paper 2 and one side of the channel 3, and a handle 17 is fixedly connected to the top of the sliding rod 15. A spring 16 is sleeved on the outer wall of the sliding rod 15, and both ends of the spring 16 are fixedly connected to the handle 17 and the corresponding positions on both sides of the sliding sleeve 14, respectively. The cross-sectional shapes of the sliding rod 15 and the sliding sleeve 14 are both circular, the cross-sectional shape of the extrusion plate 18 is L-shaped, and the width of the extrusion plate 18 is smaller than the width of the inner cavity of the base 1, and a plurality of protrusions 5 are fixedly connected to both sides of the inner cavity of the sealing ring 4, and the protrusions 5 are fitted with one side of the cover plate 6.

[0028] like Figure 1-5 As shown, the specific implementation method is: the channel 3 and the developing white paper 2 at the bottom can be squeezed and fixed by the squeezing plate 18, and the sliding rod 15 and the squeezing plate 18 are driven to move by pulling the handle 17, so that the white paper and the channel 3 can be disassembled, and the channel 3 and the cover sheet 6 can be effectively and conveniently cleaned and disinfected, and the cover sheet 6 is squeezed and fixed in the inner cavity of the sealing ring 4 by the protrusion 5, which is convenient for disassembly and replacement while improving the sealing effect.

[0029] Working principle of the present invention:

[0030] Refer to the instruction manual Figure 1 and 5, after the cover sheet 6 and the channel 3 are disinfected with alcohol, the channel 3 is filled with algae liquid, and the cover sheet 6 is covered. The LED light source 9 at the bottom emits light to observe the phototropism of the algae. A developing white paper 2 is laid under the inner cavity of the base 1, and the projection grayscale of the LED light source 9 on the developing white paper 2 is used to measure the aggregation of the algae. At the same time, a scale can be set on the front of the cover sheet 6 to facilitate the observation of the phototropism distance of the algae. The phototropism of the algae can be observed intuitively, which significantly reduces the observation limitation compared with microscope observation;

[0031] Refer to the instruction manual Figure 1-5 The channel 3 and the developing white paper 2 at the bottom can be squeezed and fixed by the squeezing plate 18, and the sliding rod 15 and the squeezing plate 18 can be moved by pulling the handle 17, so that the white paper and the channel 3 can be disassembled, and the channel 3 and the cover sheet 6 can be cleaned and disinfected effectively and conveniently, and the cover sheet 6 is squeezed and fixed in the inner cavity of the sealing ring 4 by the protrusion 5.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0033] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0034] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device with adjustable local light intensity for studying the phototropism of algae, comprising a base (1) and a channel (3), characterized in that: A groove (10) is provided at the bottom of the inner cavity of the base (1), a modulator (8) is provided at the bottom of the inner cavity of the groove (10), an LED light source (9) is fixedly connected to the top of the modulator (8), a developing white paper (2) is placed at the bottom of the inner cavity of the base (1), a channel (3) is placed on the top of the developing white paper (2), a sealing ring (4) is fixedly connected to the outer wall of the top of the channel (3), a cover sheet (6) is fitted inside the sealing ring (4), and the bottom of the cover sheet (6) is fitted to the top of the channel (3); Both sides of the inner cavity of the base (1) are fixedly connected with fixed blocks (13), a sliding sleeve (14) is embedded on the top of the fixed block (13), a sliding rod (15) is slidably connected in the sliding sleeve (14), a squeezing plate (18) is fixedly connected to the bottom of the sliding rod (15), the bottom and one side of the squeezing plate (18) are respectively in contact with the developing white paper (2) and one side of the channel (3), a handle (17) is fixedly connected to the top of the sliding rod (15), and a spring (16) is sleeved on the outer wall of the sliding rod (15), and the two ends of the spring (16) are respectively fixedly connected to the handle (17) and the corresponding positions on both sides of the sliding sleeve (14): The channels and cover slip are both Plexiglas.

2. The device for studying the phototropism of algae with adjustable local light intensity according to claim 1, characterized in that: The top of the cover sheet (6) is provided with a plurality of scale lines (7).

3. The device for studying the phototropism of algae with adjustable local light intensity according to claim 1, characterized in that: A fixing plate (11) is fixedly connected to both sides of the modulator (8), and the fixing plate (11) is fixedly connected to the bottom of the inner cavity of the groove (10) via fixing bolts.

4. The device for studying the phototropism of algae with adjustable local light intensity according to claim 1, characterized in that: The cross-sectional shapes of the sliding rod (15) and the sliding sleeve (14) are both circular.

5. The device for studying the phototropism of algae with adjustable local light intensity according to claim 1, characterized in that: The cross-sectional shape of the extrusion plate (18) is L-shaped, and the width of the extrusion plate (18) is smaller than the width of the inner cavity of the base (1).

6. The device for studying the phototropism of algae with adjustable local light intensity according to claim 1, characterized in that: Support legs (12) are fixedly connected at the four corners of the bottom of the base (1).

7. The device for studying the phototropism of algae with adjustable local light intensity according to claim 1, characterized in that: A plurality of protrusions (5) are fixedly connected to both sides of the inner cavity of the sealing ring (4), and the protrusions (5) are in contact with one side of the cover plate (6).

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