A test tube rack with drying function for preparing microalgae

Abstract

The invention discloses a test tube rack with a drying function for preparing microalgae, and relates to the technical field of test tube racks, comprising a base plate, on which a box body is fixedly installed, and also comprising a plurality of rack assemblies and a plurality of branch pipes, wherein the plurality of rack assemblies are arranged inside the box body, and each of the rack assemblies comprises a bottom plate, a top plate and a U-shaped bracket, two symmetrically arranged stepped protrusions are fixedly installed between the bottom plate and the top plate, the U-shaped bracket is fixedly installed on the top of the top plate, and each of the U-shaped brackets is provided with a plurality of limiting holes distributed at equal distances; the regulating mechanism provided in the invention can adaptively increase the air outlet volume of the air outlet vertical pipe when placing test tubes with larger specifications and longer lengths; and adaptively reduce the air outlet volume of the air outlet vertical pipe for test tubes with smaller specifications and shorter lengths, so as to achieve the purpose of targeted drying, thereby making the overall drying effect of the test tubes more efficient.

Description

Technical Field

[0001] The invention relates to the technical field of test tube racks, in particular to a test tube rack with a drying function for preparing microalgae. Background Art

[0002] The test tube rack provides a stable place for test tubes. Because the bottom of the test tubes is protruding, a special place is needed to place the test tubes when they are not in use. The test tube rack meets this need.

[0003] After searching, a Chinese patent with announcement number CN215389449U discloses a test tube rack for test tube drying, including: a plurality of trapezoidal placement slots, a plurality of the trapezoidal placement slots are all opened on the top of the placement plate; a plurality of square fixing columns, a plurality of the square fixing columns are respectively fixedly installed in a plurality of the trapezoidal placement slots, and the tops of a plurality of the square fixing columns extend to the top of the placement plate; a plurality of grooves, a plurality of the grooves are respectively opened on the tops of a plurality of the square fixing columns; a plurality of heating plates, a plurality of the heating plates are respectively fixedly installed in a plurality of the grooves; a plurality of conical protective tubes, a plurality of the conical protective tubes are respectively fixedly installed on the tops of a plurality of the square fixing columns.

[0004] Based on the above search and the prior art, it is found that: the test tube rack with a drying function currently uses hot air to dry the inside of the test tube during actual operation. Although it can achieve the drying of test tubes of different lengths, there are still the following problems: For example, test tubes of different calibers and lengths have different internal surface areas. However, the hot air flow rate in the test tube rack is often constant. Without optimization for differences in test tube specifications, long test tubes will inevitably take a long time to dry and short test tubes will take a short time to dry. The drying operation can only be stopped after all test tubes are dried, resulting in a waste of hot air and increased energy consumption. Therefore, there are limitations. Summary of the invention

[0005] The object of the present invention is to provide a test tube rack with a drying function for preparing microalgae, so as to solve the problems raised in the above background technology.

[0006] The technical solution of the present invention is: a test tube rack with a drying function for preparing microalgae, comprising a base plate, a box body is fixedly mounted on the base plate, and further comprising; A plurality of rack assemblies, wherein the plurality of rack assemblies are arranged inside the box body, each rack assembly comprises a bottom plate, a top plate and a U-shaped bracket, two symmetrically arranged step protrusions are fixedly installed between the bottom plate and the top plate, the U-shaped bracket is fixedly installed on the top of the top plate, and each U-shaped bracket is provided with a plurality of equally spaced limiting holes, and each top plate is provided with a plurality of step grooves coaxially arranged with the limiting holes; A plurality of branch pipes are fixed on the bottom plate, and each branch pipe is fixedly connected to a plurality of air outlet vertical pipes distributed at equal distances, a plurality of air outlet slots are opened at the end of each air outlet vertical pipe, and an adjustment mechanism is arranged on each air outlet vertical pipe.

[0007] Preferably, a triangular support frame is further included, and the triangular support frame forms a sliding fit with the inner bottom of the box body. The bottom of each of the bottom plates is provided with a groove, and the angle of the groove is adapted to the angle of the inclined surface of the triangular support frame.

[0008] Preferably, the regulating mechanism includes a ring plate fixedly mounted on the outer wall of the air outlet vertical pipe, and a sleeve is arranged above the ring plate, the sleeve is slidably mounted on the top of the air outlet vertical pipe, and each sleeve is provided with a plurality of air outlet slots 2 distributed at equal distances, and a supporting spring is fixedly connected between the ring plate and the sleeve.

[0009] Preferably, the inner walls on both sides of the box body are provided with a plurality of limiting slide grooves slidably matched with the stepped protrusions, and one side of the box body is provided with a plurality of equally spaced long circular openings, which are connected with adjacent limiting slide grooves, and each of the long circular openings is provided with a slider slidably installed in the vertical direction, and a corrugated membrane is fixedly connected between the two sides of the slider and the end of the long circular opening.

[0010] Preferably, each of the sliders is fixedly connected to an air intake end pipe, and one end of the air intake end pipe is fixedly connected through an adjacent step protrusion and is fixedly connected to the branch pipe, the other end of the air intake end pipe is fixedly connected to a heat-resistant hose, and the end of the heat-resistant hose is fixedly connected to a pipe joint, and the pipe joints are collectively fixedly connected to an external hot air blower.

[0011] Preferably, a plurality of grooved ring sleeves coaxially arranged with the stepped grooves are fixedly mounted on the top outer wall of each of the top plates, and the cross-section of the grooved ring sleeves is a right triangle.

[0012] Preferably, a ring gasket is fixedly mounted on the inner bottom of each stepped groove, and a plurality of arc-shaped protrusions distributed in an annular manner with equal distances are fixedly arranged on each ring gasket.

[0013] Preferably, a notch is provided on one side of the box body, and an opening adapted to the triangular bracket is provided on a side of the box body away from the notch, an extension plate is fixedly connected to one side of the triangular bracket, and convex teeth distributed equidistantly are fixedly provided on the top of the extension plate.

[0014] Preferably, a matching cover plate is provided on one side of the box body, a connecting shaft is fixedly installed on one side of the cover plate, support rings are fixedly installed on both sides of the box body, and the support rings are rotatably connected to the ends of the connecting shaft, and a counterweight is fixedly installed on one side of the cover plate.

[0015] Preferably, transmission columns are rotatably installed on both sides of the box body, and a transmission wheel is fixedly installed on one side of the transmission column, a transmission belt is provided with a tensioning sleeve between the transmission column and the connecting shaft, a pair of support blocks is fixedly installed on the extension plate, and each pair of support blocks is rotatably installed with a transverse axis, and a gear meshing with the convex teeth is fixedly installed at the middle end of the transverse axis, the transmission wheel and the transverse axis tensioning sleeve are provided with a transmission belt 2, and a support roller is rotatably installed on the bottom side of the extension plate.

[0016] The present invention provides a test tube rack with a drying function for preparing microalgae through improvement, which has the following improvements and advantages compared with the prior art: First, the regulating mechanism provided in the present invention can adaptively increase the air volume of the air outlet vertical pipe when placing a test tube with a larger specification and a longer length; while the air volume of the air outlet vertical pipe will be adaptively reduced for a test tube with a smaller specification and a shorter length, so as to achieve the purpose of targeted drying, ensure that the drying rates of test tubes of different specifications tend to be uniform, and make the overall drying effect of the test tubes more efficient; Second, when the unfolded cover plate is flipped upward, the present invention can drive the connecting shaft to rotate in a clockwise direction, and under the action of the transmission belt 1, drive the transmission wheel to rotate in the same direction, and under the transmission action of the transmission belt 2, drive the horizontal shaft to rotate at an increased speed. At this time, the gear and the horizontal shaft also rotate clockwise, thereby cooperating with the convex teeth to drive the extension plate and the triangular support frame to move away from the box body. At this time, the placement frame assembly inside the box body will gradually be in a flush state for easy storage; Thirdly, when the cover plate of the present invention is flipped open, the connecting shaft rotates in the counterclockwise direction, and under the action of the transmission belt one, the transmission wheel is driven to rotate in the same direction, and under the transmission action of the transmission belt two, the horizontal shaft is driven to rotate in the same direction. At this time, the gear and the horizontal shaft also rotate counterclockwise, thereby cooperating with the convex teeth to drive the extension plate and the triangular support frame to move toward the box body. At this time, the triangular support frame uses its inclined surface to resist the groove, thereby pushing multiple placement rack assemblies one by one to move slowly upward, and making them in a stepped shape to facilitate the taking and placing of test tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall first-view stereoscopic structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the overall second viewing angle stereoscopic structure of the present invention; Figure 4 It is a schematic diagram of the cutaway structure of the box body of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the triangular abutment plate of the present invention; Figure 6 It is a schematic diagram of a partial three-dimensional structure of a placement rack assembly of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle; Figure 8 It is a schematic diagram of a partial explosion structure of a placement rack assembly of the present invention; Fig. 9 For the present invention Figure 8 The enlarged structural diagram at B in the middle; Fig.10 It is a schematic diagram of the planar structure of the ring gasket of the present invention.

[0019] Reference numerals: 1. Base plate; 2. Box body; 201. Notch; 202. Cover plate; 203. Counterweight; 204. Limiting slide; 205. Long round opening; 3. Placement rack assembly; 301. Bottom plate; 302. Stepped protrusion; 303. Top plate; 304. U-shaped bracket; 305. Bevel; 306. Limiting hole; 4. Extension plate; 401. Protruding tooth; 402. Gear; 403. Horizontal axis; 404. Triangular support; 405. Support roller; 406. Support block; 5. Branch pipe; 501 , air outlet vertical pipe; 502, air outlet slot one; 503, ring plate; 504, support spring; 505, sleeve; 506, air outlet slot two; 6, step groove; 601, ring gasket; 602, arc-shaped protrusion; 603, groove ring sleeve; 7, air inlet end pipe; 701, slider; 702, heat-resistant hose; 703, pipe joint; 704, corrugated membrane; 8, connecting shaft; 801, support ring; 802, transmission belt one; 803, transmission belt two; 804, transmission wheel; 805, transmission column. DETAILED DESCRIPTION

[0020] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. 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.

[0021] The present invention provides a test tube rack with a drying function for preparing microalgae through improvement. The technical solution of the present invention is: like Figures 1 to 10 As shown, an embodiment of the present invention provides a test tube rack with a drying function for preparing microalgae, comprising a base plate 1, a box body 2 is fixedly mounted on the base plate 1, and further comprising; A plurality of rack assemblies 3 are provided, and the rack assemblies 3 are used for placing the test tubes to be dried. The plurality of rack assemblies 3 are provided inside the box body 2, and each rack assembly 3 includes a bottom plate 301, a top plate 303 and a U-shaped bracket 304. Two symmetrically arranged step protrusions 302 are fixedly installed between the bottom plate 301 and the top plate 303. The U-shaped bracket 304 is fixedly installed on the top of the top plate 303, and each U-shaped bracket 304 is provided with a plurality of equally spaced limiting holes 306, and each top plate 303 is provided with a plurality of stepped grooves 6 coaxially arranged with the limiting holes 306. Through the above structure, after the test tubes are cleaned, the mouths of the test tubes can be facing downwards, and the test tubes can be inserted into the U-shaped bracket 304, and the test tubes can be limited by the limiting holes 306 provided therein.

[0022] Multiple branch pipes 5 are fixed on the bottom plate 301, and each branch pipe 5 is fixedly connected to multiple air outlet vertical pipes 501 distributed at equal distances, and each end of the air outlet vertical pipe 501 is provided with multiple air outlet slots 502, such as Figure 1-Figure 6 as well as Figure 8 As shown, each air outlet vertical pipe 501 is provided with an adjusting mechanism; the adjusting mechanism can adaptively increase the air outlet volume of the air outlet vertical pipe 501 when placing test tubes with larger specifications and longer lengths; while the test tubes with smaller specifications and shorter lengths will adaptively reduce the air outlet volume of the air outlet vertical pipe 501, so as to achieve the purpose of targeted drying, making the overall drying effect of the test tubes more efficient.

[0023] As a further embodiment of the present invention, Figure 2-Figure 5As shown, it also includes a triangular support 404, which forms a sliding fit with the inner bottom of the box body 2, and a groove 305 is opened at the bottom of each bottom plate 301, and the angle of the groove 305 is adapted to the angle of the inclined surface of the triangular support 404; through the above structure, when the triangular support 404 moves into the box body 2, its inclined surface can be used to resist the groove 305, so as to push the multiple placement rack assemblies 3 one by one to move slowly upward, and make them as shown in FIG. Figure 1-Figure 4 In the state shown, the plurality of rack assemblies 3 are in a stepped shape, so that the space for taking and placing the test tubes is more three-dimensional, thereby greatly facilitating the taking and placing of the test tubes.

[0024] Furthermore, the regulating mechanism includes a ring plate 503 fixedly mounted on the outer wall of the air outlet vertical pipe 501, and a sleeve 505 is arranged above the ring plate 503, and the sleeve 505 is slidably sleeved on the top of the air outlet vertical pipe 501, and each sleeve 505 is provided with a plurality of air outlet slots 506 distributed at equal distances, and a supporting spring 504 is fixedly connected between the ring plate 503 and the sleeve 505; through the above structure, when a test tube is placed, the test tube will be placed on the top of the sleeve 505, and when the test tube is larger and longer, its internal surface area and the water stains adhered to it are more, and the weight of the test tube is also greater, so, if Fig. 9 As shown, the sleeve 505 is arranged to move toward the ring plate 503. At this time, the overlap degree of the second air outlet slot 506 and the first air outlet slot 502 is higher, so that the air volume is larger, and it is more suitable for drying large-sized test tubes; on the contrary, when the test tube is smaller and shorter, the weight of the test tube is lower, and thus, the distance between the sleeve 505 and the ring plate 503 is larger, the staggered degree of the second air outlet slot 506 and the first air outlet slot 502 is higher, and the air volume is smaller, so as to adapt to the drying of small-sized test tubes, ensure that the drying rates of test tubes of different specifications tend to be unified, thereby effectively improving the utilization rate of hot air.

[0025] As a further embodiment of the present invention, Figure 1 and Figure 4 As shown, the inner walls on both sides of the box body 2 are provided with a plurality of limiting grooves 204 that slidably cooperate with the step protrusions 302. The limiting grooves 204 can ensure that the step protrusions 302 can move in the vertical direction to improve the stability of the placement rack assembly 3 when moving; one side of the box body 2 is provided with a plurality of equidistantly distributed oblong openings 205, which are connected to adjacent limiting grooves 204, and each oblong opening 205 is provided with a slider 701 that is slidably installed in the vertical direction, and a corrugated membrane 704 is fixedly connected between the two sides of the slider 701 and the end of the oblong opening 205; through the above structure, the corrugated membrane 704 can be extended and retracted in the moving direction of the slider 701 to improve the airtightness of one side of the box body 2.

[0026] Furthermore, each slider 701 is fixedly connected to an air inlet end tube 7, and one end of the air inlet end tube 7 is fixedly passed through the adjacent step protrusion 302 and is fixedly connected to the branch pipe 5, and the other end of the air inlet end tube 7 is fixedly connected to a heat-resistant hose 702, and the end of the heat-resistant hose 702 is fixedly connected to a pipe joint 703, and the pipe joint 703 is jointly fixedly connected to an external hot air blower; the heat-resistant hose 702 is arranged to avoid interference with the movement of the placement rack assembly 3. At the same time, the hot air generated by the hot air blower can be blown into the air inlet end tube 7, and blown out through the air outlet vertical pipe 501 and the air outlet slot 502 in turn, and the inside of the test tube is dried.

[0027] As a further solution of the present invention, a plurality of beveled ring sleeves 603 coaxially arranged with the stepped groove 6 are fixedly mounted on the top outer wall of each top plate 303, and the cross-section of the beveled ring sleeve 603 is a right triangle; the beveled ring sleeve 603 is arranged so that its structure is wide at the top and narrow at the bottom, so that when the test tube is inserted, it can guide the test tube, so that when a long test tube is placed, it can be accurately inserted into the stepped groove 6.

[0028] Further, such as Figure 8 and Fig.10 As shown, a ring pad 601 is fixedly installed on the inner bottom of each stepped groove 6, and a plurality of arc-shaped protrusions 602 equidistantly distributed in an annular shape are fixedly provided on each ring pad 601; through the above structure, the provided ring pad 601 and the arc-shaped protrusion 602 can be used to support the mouth of a long test tube, and at the same time, the contact area with the mouth of the test tube is reduced by the arc-shaped protrusion 602, so as to facilitate the discharge of water stains and water vapor.

[0029] As a further embodiment of the present invention, Figure 1-Figure 5 As shown, a notch 201 is provided on one side of the box body 2, and an opening adapted to the triangular support 404 is provided on the side of the box body 2 away from the notch 201. An extension plate 4 is fixedly connected to one side of the triangular support 404, and convex teeth 401 distributed equidistantly are fixedly provided on the top of the extension plate 4.

[0030] Further, a matching cover plate 202 is provided on one side of the box body 2, a connecting shaft 8 is fixedly installed on one side of the cover plate 202, support rings 801 are fixedly installed on both sides of the box body 2, and the support rings 801 are rotatably connected to the ends of the connecting shaft 8, and a counterweight 203 is fixedly installed on one side of the cover plate 202; the counterweight 203 can be used to improve the stability of the triangular support 404 after driving and adjusting. Specifically, Figure 1 , Figure 2 and Figure 5 As shown, when the cover 202 is unfolded, under the action of the counterweight 203, the triangular support 404 can be stably inserted into the interior of the box body 2, and the multiple placement rack assemblies 3 can be stably in a stepped shape.

[0031] Furthermore, transmission columns 805 are rotatably installed on both sides of the box body 2, and a transmission wheel 804 is fixedly installed on one side of the transmission column 805, a transmission belt 802 is provided on the tensioning sleeve between the transmission column 805 and the connecting shaft 8, a pair of support blocks 406 are fixedly installed on the extension plate 4, and each pair of support blocks 406 is rotatably installed with a transverse shaft 403, and a gear 402 meshing with the convex tooth 401 is fixedly installed at the middle end of the transverse shaft 403, a transmission belt 803 is provided on the transmission wheel 804 and the transverse shaft 403 tensioning sleeve, and a support roller 405 is rotatably installed on the bottom side of the extension plate 4.

[0032] Through the above results, Figure 1-Figure 2 For example, when the unfolded cover plate 202 is flipped upward, the connecting shaft 8 can be driven to rotate in a clockwise direction, and under the action of the transmission belt 1 802, the transmission wheel 804 is driven to rotate in the same direction, and under the transmission action of the transmission belt 2 803, the horizontal shaft 403 is driven to rotate at an increased speed. At this time, the gear 402 and the horizontal shaft 403 also rotate clockwise, thereby cooperating with the convex teeth 401 to drive the extension plate 4 and the triangular support 404 to move away from the box body 2. At this time, the placement frame assembly 3 inside the box body 2 will gradually be in a flush state; On the contrary, when the cover 202 is opened, the connecting shaft 8 rotates in the counterclockwise direction, and under the action of the transmission belt 1 802, the transmission wheel 804 is driven to rotate in the same direction, and under the transmission action of the transmission belt 2 803, the horizontal axis 403 is driven to rotate in the same direction. At this time, the gear 402 and the horizontal axis 403 also rotate counterclockwise, thereby cooperating with the convex tooth 401 to drive the extension plate 4 and the triangular support 404 to move toward the box body 2. At this time, the triangular support 404 uses its inclined surface to resist the groove 305, thereby pushing the multiple placement rack assemblies 3 one by one to move slowly upward, and making them in a stepped shape to facilitate the placement of test tubes.

[0033] The specific working method is: when in use, when the unfolded cover plate 202 is flipped upward, the connecting shaft 8 is driven to rotate in the clockwise direction, and under the action of the transmission belt 1 802, the transmission wheel 804 is driven to rotate in the same direction, and under the transmission action of the transmission belt 2 803, the horizontal shaft 403 is driven to rotate at an increased speed. At this time, the gear 402 and the horizontal shaft 403 also rotate clockwise, thereby cooperating with the convex teeth 401 to drive the extension plate 4 and the triangular support 404 to move away from the box body 2. At this time, the placement frame assembly 3 inside the box body 2 will gradually be in a flush state; On the contrary, when the cover plate 202 is opened, the connecting shaft 8 rotates in the counterclockwise direction, and under the action of the transmission belt 1 802, the transmission wheel 804 is driven to rotate in the same direction, and under the transmission action of the transmission belt 2 803, the horizontal shaft 403 is driven to rotate in the same direction. At this time, the gear 402 and the horizontal shaft 403 also rotate counterclockwise, thereby cooperating with the convex teeth 401 to drive the extension plate 4 and the triangular support 404 to move toward the box body 2. At this time, the triangular support 404 uses its inclined surface to resist the groove 305, thereby pushing the multiple placement rack assemblies 3 one by one to slowly move upward and make them in a stepped shape, so as to facilitate the placement of test tubes; After the test tube is cleaned, the tube mouth of the test tube can be facing downward, and the test tube can be inserted into the U-shaped bracket 304, and the test tube can be limited by the set limiting hole 306; after the test tube is placed, the cover plate 202 is closed, and the hot air blower is controlled to start, and the set heat-resistant hose 702 is used to avoid interference with the movement of the placement rack assembly 3, and the hot air generated by the hot air blower is blown into the air inlet end pipe 7, and then blown out through the air outlet vertical pipe 501 and the air outlet slot 1 502 in turn, and the inside of the test tube is dried; The regulating mechanism is set to adaptively increase the air volume of the air outlet vertical pipe 501 when placing a larger and longer test tube; while the air volume of the air outlet vertical pipe 501 is adaptively reduced for a smaller and shorter test tube, so as to achieve the purpose of targeted drying, making the overall drying effect of the test tube more efficient; specifically, when the test tube is placed, the test tube will be placed on the top of the sleeve 505, and when the test tube is larger and longer, its internal surface area and the water stains adhered to it are also greater, and the weight of the test tube is also greater, so, if Fig. 9 As shown, the sleeve 505 is arranged to move toward the ring plate 503. At this time, the second air outlet slot 506 and the first air outlet slot 502 have a higher degree of overlap, so that the air volume is larger, and it is more suitable for drying large-sized test tubes. On the contrary, when the test tube is smaller and shorter, the weight of the test tube is lower. Therefore, the distance between the sleeve 505 and the ring plate 503 is larger, the second air outlet slot 506 and the first air outlet slot 502 have a higher degree of overlap, and the air volume is smaller, so as to adapt to the drying of small-sized test tubes, and finally ensure that the drying rates of test tubes of different specifications tend to be unified.

[0034] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A test tube rack with a drying function for preparing microalgae, comprising a base plate (1), on which a box body (2) is fixedly mounted, characterized in that: Also includes; A plurality of rack assemblies (3), wherein the plurality of rack assemblies (3) are arranged inside the box body (2), each rack assembly (3) comprises a bottom plate (301), a top plate (303) and a U-shaped bracket (304), two symmetrically arranged stepped protrusions (302) are fixedly installed between the bottom plate (301) and the top plate (303), the U-shaped bracket (304) is fixedly installed on the top of the top plate (303), and each U-shaped bracket (304) is provided with a plurality of equally spaced limiting holes (306), and each top plate (303) is provided with a plurality of stepped grooves (6) coaxially arranged with the limiting holes (306); A plurality of branch pipes (5), each of the branch pipes (5) being fixed on a bottom plate (301), and each of the branch pipes (5) being fixedly connected to a plurality of equally spaced vertical air outlet pipes (501), a plurality of air outlet slots (502) being provided at the end of each of the vertical air outlet pipes (501), and an adjustment mechanism being provided on each of the vertical air outlet pipes (501).

2. The test tube rack with drying function for preparing microalgae according to claim 1, characterized in that: It also comprises a triangular support (404), the triangular support (404) and the inner bottom of the box body (2) form a sliding fit, and the bottom of each bottom plate (301) is provided with a groove (305), the angle of the groove (305) is adapted to the angle of the inclined surface of the triangular support (404).

3. The test tube rack with drying function for preparing microalgae according to claim 2, characterized in that: The regulating mechanism comprises a ring plate (503) fixedly mounted on the outer wall of the air outlet vertical pipe (501), and a sleeve (505) is arranged above the ring plate (503), the sleeve (505) is slidably sleeved on the top of the air outlet vertical pipe (501), and each sleeve (505) is provided with a plurality of air outlet slots (506) distributed at equal distances, and a support spring (504) is fixedly connected between the ring plate (503) and the sleeve (505).

4. The test tube rack with drying function for preparing microalgae according to claim 3, characterized in that: The inner walls on both sides of the box body (2) are provided with a plurality of limiting slide grooves (204) that slidably cooperate with the stepped protrusions (302); one side of the box body (2) is provided with a plurality of equidistantly distributed long round openings (205), the long round openings (205) being connected to adjacent limiting slide grooves (204); each of the long round openings (205) is provided with a slider (701) slidably mounted in the vertical direction; and a corrugated membrane (704) is fixedly connected between the two sides of the slider (701) and the end of the long round opening (205).

5. The test tube rack with drying function for preparing microalgae according to claim 4, characterized in that: Each of the sliders (701) is fixedly connected to an air intake end pipe (7), and one end of the air intake end pipe (7) is fixedly passed through an adjacent stepped protrusion (302) and is fixedly connected to the branch pipe (5), and the other end of the air intake end pipe (7) is fixedly connected to a heat-resistant hose (702), and the end of the heat-resistant hose (702) is fixedly connected to a pipe joint (703), and the pipe joints (703) are jointly fixedly connected to an external hot air blower.

6. The test tube rack with drying function for preparing microalgae according to claim 1, characterized in that: A plurality of grooved ring sleeves (603) coaxially arranged with the stepped groove (6) are fixedly mounted on the top outer wall of each top plate (303), and the cross section of the grooved ring sleeves (603) is a right triangle.

7. The test tube rack with drying function for preparing microalgae according to claim 6, characterized in that: A ring gasket (601) is fixedly mounted on the inner bottom of each stepped groove (6), and a plurality of arc-shaped protrusions (602) distributed in an annular manner and at equal distances are fixedly arranged on each ring gasket (601).

8. The test tube rack with drying function for preparing microalgae according to claim 1, characterized in that: A notch (201) is provided on one side of the box body (2), and an opening adapted to fit the triangular support (404) is provided on a side of the box body (2) away from the notch (201); an extension plate (4) is fixedly connected to one side of the triangular support (404), and convex teeth (401) distributed at equal distances are fixedly provided on the top of the extension plate (4).

9. The test tube rack with drying function for preparing microalgae according to claim 8, characterized in that: A matching cover plate (202) is provided on one side of the box body (2), a connecting shaft (8) is fixedly mounted on one side of the cover plate (202), supporting rings (801) are fixedly mounted on both sides of the box body (2), and the supporting rings (801) are rotatably connected to the ends of the connecting shaft (8), and a counterweight (203) is fixedly mounted on one side of the cover plate (202).

10. The test tube rack with drying function for preparing microalgae according to claim 9, characterized in that: Transmission columns (805) are rotatably mounted on both sides of the box body (2), and a transmission wheel (804) is fixedly mounted on one side of the transmission column (805); a transmission belt 1 (802) is provided on a tensioning sleeve between the transmission column (805) and the connecting shaft (8); a pair of support blocks (406) is fixedly mounted on the extension plate (4), and a transverse shaft (403) is rotatably mounted on each pair of support blocks (406); a gear (402) meshing with the convex teeth (401) is fixedly mounted on the middle end of the transverse shaft (403); a transmission belt 2 (803) is provided on the transmission wheel (804) and the transverse shaft (403) tensioning sleeve; and a support roller (405) is rotatably mounted on the bottom side of the extension plate (4).

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