Oat seed cultivation device for oat planting

Abstract

The invention belongs to the technical field of agricultural planting equipment, and particularly relates to an oat seed cultivation device for oat planting, which comprises a cultivation box body, two top covers, a self-resetting assembly, a screen frame, a screw sleeve, a lead screw, a motor, a stirring assembly, a material shifting assembly, a transmission assembly I, a transmission assembly II, an anti-scattering assembly, a cleaning and filtering assembly and two discharge pipes. The two discharging pipes are fixedly installed at the bottoms of the two sides of the cultivation box body respectively and are kept in a communicated state with the cultivation box body, the top of the cultivation box body is open, the self-resetting assembly and the two top covers are arranged in the top opening of the cultivation box body, and the two top covers are connected with the self-resetting assembly; the screen frame is installed in the cultivation box body in a sliding mode, and the lead screw is rotatably installed on the inner wall of the bottom of the cultivation box body. The device has the advantages of reasonable design, simplicity and convenience in operation, high screening efficiency, high automation degree and the like, and is suitable for cultivation and treatment of oat seeds.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural planting equipment, and in particular to an oat seed cultivating device for oat planting. Background Art

[0002] As an important food crop and feed crop, the planting quality and yield of oats have received widespread attention. In the process of oat planting, seed screening and cultivation are key links, which directly affect the germination rate, growth conditions, and final yield and quality of oats.

[0003] The traditional method of oat seed screening and cultivation mainly relies on manual operation, which has many disadvantages. Manual seed screening is inefficient, consumes a lot of time and manpower costs, and is difficult to guarantee accuracy. It is easy to make misjudgments, resulting in the mixing of unqualified seeds, affecting subsequent planting results. It is also easy to make the germination and initial growth of oat seeds uneven. In addition, there are certain safety hazards in the manual operation process. For example, long-term repetitive labor may cause fatigue and injury to operators.

[0004] Therefore, the present invention provides an oat seed cultivation device for oat planting to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an oat seed cultivation device for oat planting.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an oat seed cultivation device for oat planting, comprising a cultivation box, two top covers, a self-resetting component, a screen frame, a screw sleeve, a lead screw, a motor, a stirring component, a material shifting component, a transmission component 1, a transmission component 2, an anti-scattering component, a cleaning and filtering component and two discharge pipes; The two discharge pipes are respectively fixedly mounted on the bottom of both sides of the cultivation box and are connected to the cultivation box. The top of the cultivation box is open. The self-resetting component and the two top covers are both arranged in the top opening of the cultivation box, and the two top covers are both connected to the self-resetting component. The sieve frame is slidably mounted in the cultivation box, the screw rod is rotatably mounted on the bottom inner wall of the cultivation box, the motor is fixedly mounted at the bottom of the cultivation box, and the output shaft of the motor is axially fixedly connected to the bottom end of the screw rod, the screw sleeve is fixedly mounted on the sieve frame, and the screw sleeve is threadedly sleeved on the outside of the screw rod; A sliding seat is axially slidably mounted on the lead screw, a support cylinder is fixedly mounted on the bottom side of the sliding seat, the stirring assembly and the material-prying assembly are both arranged in the screen frame and connected to the support cylinder, the transmission assembly 1 is arranged on the screw sleeve and connected to the stirring assembly, the anti-scattering assembly is arranged on the sliding seat, the transmission assembly 2 is arranged on the lead screw, and the anti-scattering assembly is adapted to the transmission assembly 2, the cleaning filter assembly is arranged on the screw sleeve and contacts the bottom inner wall and the inner walls on both sides of the front and rear sides of the incubation box; Discharge ports are provided at lower positions on both sides of the screen frame and on inner walls on both sides of the cultivation box body, and guide troughs adapted to the discharge ports on the cultivation box body are fixedly installed at upper positions on both sides of the cultivation box body.

[0007] Preferably, the stirring assembly includes multiple rotating shafts and multiple paddles. The multiple rotating shafts are radially rotatably mounted on the support cylinder, and multiple paddles are fixedly mounted on the multiple rotating shafts in parallel with each other. The angle between the plane where the paddles are located and the rotating shaft is 45 degrees.

[0008] Preferably, the material shifting assembly includes a plurality of fixed rods and a plurality of shifting rods, the plurality of fixed rods are radially fixedly mounted on the support tube, and a vertically arranged shifting rod is fixedly mounted on each of the plurality of fixed rods.

[0009] Preferably, the transmission component comprises a toothed disc and a plurality of gears, the ends of the plurality of rotating shafts close to each other extend into the support tube and are respectively fixedly sleeved with gears, the toothed disc is fixedly mounted on the screw sleeve, and the plurality of gears are meshed with the gears.

[0010] Preferably, the anti-spill assembly includes two baffles, and the top side of the sliding seat is hingedly mounted with two symmetrically arranged baffles, both of which are arranged in a fan shape, and the top and bottom sides of the baffles are arranged in an upwardly protruding shape.

[0011] Preferably, the second transmission component includes two connecting blocks, a sliding ring, a sleeve, a spring and a limit block, the top of the screw is fixedly installed with the limit block, the bottom side of the limit block is fixedly installed with a spring that is movably mounted on the outside of the screw, the bottom end of the spring is fixedly installed with a sliding ring that is axially slidably mounted on the screw, the bottom side of the sliding ring is fixedly installed with a sleeve that is movably mounted on the outside of the screw, the two baffles are each provided with an arc-shaped opening on one side where they are close to each other, connecting blocks are fixedly installed in the two arc-shaped openings, the two baffles are respectively hinged to the sliding seat through the corresponding connecting blocks, and the two connecting blocks are both located below the sleeve.

[0012] Preferably, the cleaning filter assembly comprises two filter plates, two fixed blocks and two guide wheels, the outer side of the screw sleeve is symmetrically fixed with two fixed blocks, the two fixed blocks are hingedly mounted with filter plates, the sides of the two filter plates away from each other are in active contact with the bottom inner wall of the incubation box, and the two filter plates are rotatably mounted with guide wheels rollingly mounted on the bottom inner wall of the incubation box.

[0013] Preferably, the self-resetting assembly includes two rotating rods and two torsion springs. Two rotating rods arranged parallel to each other are rotatably installed at the top opening of the incubation box body. Two top covers are radially fixedly installed on the corresponding rotating rods. An installation groove is opened on the top cover with the rotating rod as the center. A torsion spring movably mounted on the outside of the support rod is fixedly installed in the installation groove, and the torsion spring is fixedly connected to the inner wall of one side of the top opening of the incubation box body.

[0014] Preferably, vertical rods are fixedly mounted on both sides of the top of the screen frame.

[0015] Preferably, sliders are fixedly installed on both sides of the screen frame, and slide grooves are opened on the inner walls of both sides of the cultivation box body, and two sliders are slidably installed in the corresponding slide grooves respectively.

[0016] The beneficial effects of the present invention are: By setting up structures such as screen frames, sliders, slides, screw sleeves, screws and motors, automatic screening and grading of oat seeds are achieved, which greatly improves screening efficiency and accuracy and reduces manual labor intensity. At the same time, the lifting and lowering of the screen frame and the flipping of the top cover are achieved through mechanical structures without manual operation, which improves the degree of automation of the equipment and avoids errors and safety hazards that may be caused by manual operation. In addition, through the setting of structures such as sliding seats and support cylinders, the paddle can stably paddle the oat seeds, avoiding accumulation and blockage of seeds during the screening process, and further improving the screening effect.

[0017] In addition, the soaking, screening and cultivation of oat seeds can be achieved by injecting an appropriate amount of water into the cultivation box. The settings of structures such as filter plates and guide wheels can effectively collect the screened debris and transport it to a position close to the discharge pipe, which is convenient for subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1This is a schematic diagram of the three-dimensional structure of an oat seed cultivation device for oat planting proposed by the present invention; Figure 2 For the present invention Figure 1 A cross-sectional view of Figure 3 This is a partial three-dimensional structural schematic diagram of an oat seed cultivation device for oat planting proposed by the present invention; Figure 4 for Figure 2 The structural diagram of part A in the figure; Figure 5 This is a schematic diagram of the structure of the screen frame, the discharge port and the vertical rod part proposed by the present invention; Figure 6 This is a partial enlarged view of the rotating rod, top cover, torsion spring and mounting groove part proposed by the present invention.

[0020] In the figure: 1, cultivation box; 11, top cover; 111, rotating rod; 112, torsion spring; 12, discharge pipe; 13, guide trough; 2, screen frame; 201, slider; 202, vertical rod; 21, screw sleeve; 22, lead screw; 23, motor; 3, sliding seat; 31, support cylinder; 32, rotating shaft; 321, dial plate; 322, gear; 323, toothed disc; 33, fixing rod; 331, dial rod; 34, baffle; 341, connecting block; 342, sliding ring; 343, sleeve; 344, spring; 345, limit block; 35, filter plate; 351, guide wheel. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0022] Reference Figure 1-6 , an oat seed cultivation device for oat planting, comprising a cultivation box 1, two top covers 11, a screen frame 2, a screw sleeve 21, a lead screw 22, a motor 23 and two discharge pipes 12, the two discharge pipes 12 are respectively fixedly mounted on the bottom of both sides of the cultivation box 1 and keep in communication with the cultivation box 1, the top of the cultivation box 1 is open, and two rotating rods 111 arranged parallel to each other are rotatably mounted at the top opening position of the cultivation box 1, the two top covers 11 are respectively radially fixedly mounted on the corresponding rotating rods 111, a mounting groove is opened on the top cover 11 based on the rotating rod 111 as the center, a torsion spring 112 movably sleeved on the outside of the support rod is fixedly mounted in the mounting groove, and the torsion spring 112 is fixedly connected to the inner wall of one side of the top opening of the cultivation box 1, and can achieve a self-resetting effect when no upward flipping force is applied to the top cover 11; The screen frame 2 is slidably mounted in the cultivation box 1, the screw is rotatably mounted on the bottom inner wall of the cultivation box 1, the motor 23 is fixedly mounted on the bottom of the cultivation box 1, and the output shaft of the motor 23 is axially fixedly connected to the bottom end of the screw 22, the screw sleeve 21 is fixedly mounted on the screen frame 2, and the screw sleeve 21 is threadedly sleeved on the outside of the screw 22; A sliding seat 3 is axially slidably mounted on the lead screw 22, a support cylinder 31 is fixedly mounted on the bottom side of the sliding seat 3, a plurality of rotating shafts 32 are radially rotatably mounted on the support cylinder 31, a plurality of paddles 321 arranged parallel to each other are fixedly mounted on the plurality of rotating shafts 32, the angle between the plane where the paddles 321 are located and the rotating shaft 32 is 45 degrees, the plurality of paddles 321 can be controlled to perform stirring operation when the rotating shaft 32 rotates, and the effect of pushing the material in different directions can be achieved according to the different rotation directions of the rotating shaft 32, and the support cylinder 31 is placed on the support cylinder 31. A plurality of fixed rods 33 are fixedly installed in a radial shape, and a vertically arranged shifting rod 331 is fixedly installed on each of the plurality of fixed rods 33, which can control the plurality of shifting rods 331 to shift the materials on the inner wall at the bottom of the screen frame 2 when the support cylinder 31 rotates, and the ends of the plurality of rotating shafts 32 close to each other extend into the support cylinder 31 and are respectively fixedly sleeved with gears 322, and a toothed disk 323 is fixedly installed on the screw sleeve 21, and the plurality of gears 322 are meshed with the gears 322, so that the plurality of rotating shafts 32 can be controlled to rotate when the support cylinder 31 rotates following the lead screw 22; The top side of the sliding seat 3 is hingedly installed with two symmetrically arranged baffles 34, both of which are fan-shaped, and the top and bottom sides of the baffles 34 are upwardly convex, which can prevent oat seeds from spilling from the sieve frame 2 during the up and down movement of the sieve frame 2. A limit block 345 is fixedly installed on the top of the screw 22, and a spring 344 that is movably sleeved on the outside of the screw 22 is fixedly installed on the bottom side of the limit block 345. A sliding ring 342 axially slidably installed on the screw 22 is fixedly installed at the bottom end of the spring 344, and a movable sleeve that is movably sleeved on the screw 22 is fixedly installed on the bottom side of the sliding ring 342. The outer sleeve 343 has an arc-shaped opening on one side where the two baffles 34 are close to each other, and connecting blocks 341 are fixedly installed in the two arc-shaped openings. The two baffles 34 are respectively hinged to the sliding seat 3 through the corresponding connecting blocks 341, and the two connecting blocks 341 are both located below the sleeve 343. When the sliding seat 3 moves upward to a certain height following the screen frame 2, the bottom side of the sleeve 343 abuts against the multiple connecting blocks 341, so that the baffle 34 can be deflected upward, and then the top side of the screen frame 2 can be opened, so that it is convenient to add the oat seeds to be cultivated that need to be processed into the screen frame 2; Two fixed blocks are symmetrically fixed on the outer side of the screw sleeve 21, and filter plates 35 are hingedly installed on the two fixed blocks. The two sides of the two filter plates 35 that are away from each other are in active contact with the bottom inner wall of the cultivation box 1, and the two filter plates 35 are rotatably installed with guide wheels 351 that are rollingly installed on the bottom inner wall of the cultivation box 1. When the screw sleeve 21 is driven by the screen frame 2 to move upward or downward, the filter plates 35 can be controlled to clean the bottom inner wall of the cultivation box 1, and at the same time, the water near the screw screw 22 can be filtered to prevent debris from affecting the normal operation of the screw screw 22; Discharge ports are provided at the lower positions on both sides of the screen frame 2 and on the inner walls on both sides of the cultivation box body 1 , and guide grooves 13 adapted to the discharge ports on the cultivation box body 1 are fixedly installed at the upper positions on both sides of the cultivation box body 1 .

[0023] In this embodiment, in order to enable the top cover 11 to be flipped after the screen frame 2 slides upward along the inner wall of the cultivation box 1 to a certain distance, thereby achieving the effect of not having to manually open the top cover 11, vertical rods 202 are fixedly installed on both sides of the top of the screen frame 2.

[0024] In this embodiment, in order to provide guidance for the screen frame 2, thereby ensuring the stable lifting and lowering of the screen frame 2 and limiting the lifting and lowering range of the screen frame 2, sliders 201 are fixedly installed on both sides of the screen frame 2, and sliding grooves are opened on the inner walls on both sides of the incubation box 1, and the two sliders 201 are slidably installed in the corresponding sliding grooves respectively.

[0025] Working principle: When in use, first turn on the power supply, and control the rotation of the lead screw 22 through the motor 23. With the cooperation of the screw sleeve 21, the screen frame 2 can be controlled to move upward, and the sliding seat 3 will move synchronously with the lead screw 22, so that the support cylinder 31 drives multiple rotating shafts 32 to revolve around the lead screw 22. Due to the setting of the gear 322 and the toothed disc 323, the rotating shaft 32 can realize self-rotation while revolving, so that multiple paddles 321 can be controlled to pry the oat seeds in the screen frame 2. The oat seeds and the screen frame 2 continue to rise, the sleeve 343 abuts against the connecting block 341 and compresses the spring 344. As the screen frame 2 continues to rise, the side of the baffle 34 that is away from each other deflects upward, so that the top side of the screen frame 2 can be in an open state, and the vertical rod 202 on the screen frame 2 will push the top cover 11 upward.

[0026] Add oat seeds to be cultivated into the sieve frame 2, and then control the motor 23 to rotate in the reverse direction. After the sieve frame 2 enters the cultivation box 1 and the top cover 11 is automatically closed under the action of the torsion spring 112, the motor 23 is controlled to rotate forward and reverse alternately, so that the oat seeds can be screened. After the screening is completed, an appropriate amount of water is injected into the cultivation box 1, and then the sieve frame 2 is controlled to reciprocate up and down in the water, so that the debris in the oat seeds can be processed and the oat seeds can be soaked. After the soaking process is completed, the sieve frame 2 is controlled to move upward. As the sieve frame 2 moves upward, the paddle 321 can fluctuate the oat seeds to a position close to the edge of the sieve frame 2. When the discharge port on the sieve frame 2 is kept in a connected state with the discharge port on the cultivation box 1, the oat seeds can be discharged through the guide trough 13, or the sieve frame 2 can be further adjusted upward to the top of the cultivation box 1 to discharge the oat seeds.

[0027] When cultivation is required, the oat seeds to be cultivated are placed on the screen in the screen frame 2, and then a proper amount of water is added to the cultivation box 1 so that the oat seeds can be soaked and germinated in the water. As the soaking time goes by, the oat seeds will sprout and produce some impurities and waste. At this time, the lead screw 22 is driven by the driving motor 4 to rotate, and the lead screw 22 drives the screw sleeve 21 to move up and down along the axis direction of the lead screw 22. The lifting movement of the screw sleeve 21 drives the screen frame 2 to move up and down along the inner wall of the cultivation box 1, thereby realizing the screening and cultivation of the oat seeds. During the lifting process of the screen frame 2, the filter plate 3 5 will clean the bottom inner wall of the cultivation box 1 to prevent debris from affecting the normal operation of the lead screw 22. At the same time, the filter plate 35 can also filter the water near the lead screw 22 to ensure the cleanliness of the water. When the screen frame 2 is lifted to a certain height, the vertical rod 202 on the top of the screen frame 2 will push the top cover 11 to flip, thereby opening the top of the cultivation box 1, which is convenient for observing and managing the oat seeds in the cultivation device. In addition, the sliders 201 on both sides of the screen frame 2 will slide in the slide grooves on both sides of the cultivation box 1 to provide a stable guide for the screen frame 2 and limit the lifting range of the screen frame 2 to ensure the normal operation of the cultivation device.

[0028] The above is a detailed introduction to an oat seed cultivation device for oat planting provided by the present invention. Specific embodiments are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An oat seed cultivation device for oat planting, characterized in that: It comprises a cultivation box (1), two top covers (11), a self-resetting component, a screen frame (2), a screw sleeve (21), a lead screw (22), a motor (23), a stirring component, a material shifting component, a transmission component 1, a transmission component 2, an anti-spill component, a cleaning and filtering component and two discharge pipes (12); The two discharge pipes (12) are respectively fixedly mounted on the bottoms of both sides of the cultivation box (1) and are kept in communication with the cultivation box (1); the top of the cultivation box (1) is arranged to be open; the self-resetting component and the two top covers (11) are arranged in the top opening of the cultivation box (1), and the two top covers (11) are connected to the self-resetting component; The sieve frame (2) is slidably mounted in the cultivation box (1), the screw rod is rotatably mounted on the bottom inner wall of the cultivation box (1), the motor (23) is fixedly mounted on the bottom of the cultivation box (1), and the output shaft of the motor (23) is axially fixedly connected to the bottom end of the screw rod (22), the screw sleeve (21) is fixedly mounted on the sieve frame (2), and the screw sleeve (21) is threadedly sleeved on the outside of the screw rod (22); A sliding seat (3) is axially slidably mounted on the lead screw (22), a support cylinder (31) is fixedly mounted on the bottom side of the sliding seat (3), the stirring assembly and the material-dispensing assembly are both arranged in the screen frame (2) and connected to the support cylinder (31), the transmission assembly 1 is arranged on the screw sleeve (21) and connected to the stirring assembly, the anti-scattering assembly is arranged on the sliding seat (3), the transmission assembly 2 is arranged on the lead screw (22), and the anti-scattering assembly is matched with the transmission assembly 2, and the cleaning filter assembly is arranged on the screw sleeve (21) and contacts the bottom inner wall and the inner walls on both sides of the cultivation box (1); Discharge ports are provided at lower positions on both sides of the screen frame (2) and on inner walls on both sides of the cultivation box (1), and guide troughs (13) adapted to the discharge ports on the cultivation box (1) are fixedly installed at upper positions on both sides of the cultivation box (1).

2. The oat seed cultivation device for oat planting according to claim 1, characterized in that: The stirring assembly comprises a plurality of rotating shafts (32) and a plurality of paddles (321); the plurality of rotating shafts (32) are radially rotatably mounted on the support cylinder (31); a plurality of paddles (321) are fixedly mounted on the plurality of rotating shafts (32) and are arranged parallel to each other; and the angle between the plane where the paddles (321) are located and the rotating shafts (32) is 45 degrees.

3. The oat seed cultivation device for oat planting according to claim 1, characterized in that: The material shifting assembly comprises a plurality of fixed rods (33) and a plurality of shifting rods (331); the plurality of fixed rods (33) are radially fixedly mounted on the support tube (31); and a vertically arranged shifting rod (331) is fixedly mounted on each of the plurality of fixed rods (33).

4. The oat seed cultivation device for oat planting according to claim 2, characterized in that: The transmission assembly 1 comprises a toothed disc (323) and a plurality of gears (322); the ends of the plurality of rotating shafts (32) close to each other extend into the support tube (31) and are respectively fixedly sleeved with gears (322); the toothed disc (323) is fixedly mounted on the screw sleeve (21), and the plurality of gears (322) are meshed with the gears (322).

5. The oat seed cultivation device for oat planting according to claim 1, characterized in that: The anti-spill assembly comprises two baffles (34), the top side of the sliding seat (3) is hingedly mounted with two symmetrically arranged baffles (34), both of which are arranged in a fan shape, and the top side and the bottom side of the baffle (34) are arranged in an upwardly convex shape.

6. The oat seed cultivation device for oat planting according to claim 5, characterized in that: The transmission assembly 2 comprises two connecting blocks (341), a sliding ring (342), a sleeve (343), a spring (344) and a limit block (345); the top end of the lead screw (22) is fixedly mounted with the limit block (345); the bottom side of the limit block (345) is fixedly mounted with a spring (344) which is movably sleeved on the outside of the lead screw (22); the bottom end of the spring (344) is fixedly mounted with a sliding ring (342) which is axially slidably mounted on the lead screw (22); the bottom side of the sliding ring (342) is fixedly mounted with a sleeve (343) which is movably sleeved on the outside of the lead screw (22); arc-shaped openings are provided on the sides of the two baffles (34) which are close to each other; connecting blocks (341) are fixedly mounted in the two arc-shaped openings; the two baffles (34) are respectively hinged to the sliding seat (3) through corresponding connecting blocks (341); and the two connecting blocks (341) are both located below the sleeve (343).

7. The oat seed cultivation device for oat planting according to claim 1, characterized in that: The cleaning filter assembly comprises two filter plates (35), two fixing blocks and two guide wheels (351); the two fixing blocks are symmetrically fixedly mounted on the outer side of the screw sleeve (21); the filter plates (35) are hingedly mounted on the two fixing blocks; the two sides of the two filter plates (35) that are away from each other are in active contact with the bottom inner wall of the cultivation box (1); and the two filter plates (35) are rotatably mounted with guide wheels (351) that are rollingly mounted on the bottom inner wall of the cultivation box (1).

8. The oat seed cultivation device for oat planting according to claim 1, characterized in that: The self-resetting assembly comprises two rotating rods (111) and two torsion springs (112); the top opening of the cultivation box (1) is rotatably mounted with two rotating rods (111) arranged in parallel with each other; the two top covers (11) are respectively radially fixedly mounted on the corresponding rotating rods (111); the top cover (11) is provided with a mounting groove centered on the rotating rod (111); a torsion spring (112) movably sleeved on the outside of a support rod is fixedly mounted in the mounting groove; and the torsion spring (112) is fixedly connected to an inner wall of one side of the top opening of the cultivation box (1).

9. The oat seed cultivation device for oat planting according to claim 1, characterized in that: Vertical rods (202) are fixedly mounted on both sides of the top of the screen frame (2).

10. The oat seed cultivation device for oat planting according to claim 1, characterized in that: Slide blocks (201) are fixedly mounted on both sides of the screen frame (2), and slide grooves are provided on both inner walls of the culture box (1), and two slide blocks (201) are slidably mounted in corresponding slide grooves.

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