An oat seed cultivation device for oat planting
By designing an oat seed cultivation device for oat planting, automatic screening and grading of oat seeds were achieved, solving the problems of low efficiency and safety hazards of traditional manual screening, and improving seed quality and planting results.
Patent Information
- Application Number
- CN202510033055.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2045-01-09
AI Technical Summary
Traditional manual screening of oat seeds is inefficient, inaccurate, and poses safety risks, affecting planting results and seed quality.
Design an oat seed cultivation device for oat planting, including a cultivation box, top cover, sieve frame, lead screw, motor, stirring components, etc., to realize automatic screening and grading of oat seeds. The mechanical structure realizes the lifting and lowering of the sieve frame and the flipping of the top cover, avoiding manual operation.
It improves screening efficiency and accuracy, reduces manual labor intensity, avoids errors and safety hazards, and realizes automated screening and soaking cultivation of oat seeds, ensuring seed quality.
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Figure CN119422518B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of agricultural planting equipment, and in particular relates to a oat seed cultivation device for oat planting. BACKGROUND
[0002] As an important food crop and forage crop, the planting quality and yield of oats are widely concerned. In the process of oat planting, seed screening and cultivation are key links, which directly affect the germination rate, growth condition, and final yield and quality of oats.
[0003] The traditional oat seed screening and cultivation method mainly relies on manual operation, which has many drawbacks. Manual seed screening is inefficient, consumes a lot of time and labor cost, and the accuracy is difficult to guarantee, which may lead to misjudgment and cause unqualified seeds to be mixed, affecting the subsequent planting effect. At the same time, it is easy to make the germination and initial growth of oat seeds uneven. In addition, there are certain safety hazards in the process of manual operation, such as fatigue and injury of the operator due to long-term repetitive labor.
[0004] Therefore, the present application provides an oat seed cultivation device for oat planting to solve the above problems. SUMMARY
[0005] The present application aims to solve the shortcomings of the prior art and provides an oat seed cultivation device for oat planting.
[0006] The above technical purpose of the present application is achieved by the following technical scheme: an oat seed cultivation device for oat planting, comprising a cultivation box, two top covers, a self-resetting assembly, a screen frame, a screw sleeve, a lead screw, a motor, a stirring assembly, a material stirring assembly, a transmission assembly one, a transmission assembly two, an anti-spillage assembly, a cleaning and filtering assembly, and two discharge pipes;
[0007] The two discharge pipes are fixedly installed on the bottom of the two sides of the cultivation box and are in communication with the cultivation box. The top of the cultivation box is provided with an opening. The self-resetting assembly and the two top covers are arranged in the opening of the top of the cultivation box, and the two top covers are connected with the self-resetting assembly.
[0008] The screen frame is slidably installed in the cultivation box. The lead screw is rotatably installed on the inner wall of the bottom of the cultivation box. The motor is fixedly installed on the bottom of the cultivation box, and the output shaft of the motor is axially fixedly connected with the bottom end of the lead screw. The screw sleeve is fixedly installed on the screen frame, and the screw sleeve is threadedly sleeved on the outer side of the lead screw.
[0009] The sliding seat is axially slidably mounted on the screw rod, a supporting cylinder is fixedly mounted on the bottom side of the sliding seat, the stirring assembly and the stirring assembly are arranged in the screen frame and connected with the supporting cylinder, the transmission assembly I is arranged on the screw sleeve and connected with the stirring assembly, the anti-dropping assembly is arranged on the sliding seat, the transmission assembly II is arranged on the screw rod, and the anti-dropping assembly is matched with the transmission assembly II, and the cleaning and filtering assembly is arranged on the screw sleeve and in contact with the bottom inner wall and the front and rear inner walls of the incubation box body.
[0010] The two side lower positions of the screen frame and the two side inner walls of the incubation box body are provided with discharge ports, and the two side upper positions of the incubation box body are fixedly provided with guide grooves matched with the discharge ports of the incubation box body.
[0011] Preferably, the stirring assembly comprises a plurality of rotating shafts and a plurality of stirring plates, the rotating shafts are radially rotatably mounted on the supporting cylinder, the rotating shafts are fixedly provided with a plurality of stirring plates arranged in parallel, and the angle between the plane of the stirring plate and the rotating shaft is 45 degrees.
[0012] Preferably, the stirring assembly comprises a plurality of fixed rods and a plurality of stirring rods, the fixed rods are radially fixedly mounted on the supporting cylinder, and the fixed rods are fixedly provided with a plurality of stirring rods arranged vertically.
[0013] Preferably, the transmission assembly I comprises a gear disc and a plurality of gears, one end of each of the rotating shafts extends into the supporting cylinder and is fixedly provided with a gear, the gear disc is fixedly mounted on the screw sleeve, and the gears are engaged with the gear disc.
[0014] Preferably, the anti-dropping assembly comprises two baffles, the top side of the sliding seat is hingedly provided with two symmetrically arranged baffles, the baffles are arranged in a fan shape, and the top side and the bottom side of the baffle are arranged in an upward convex shape.
[0015] Preferably, the transmission assembly II comprises two connecting blocks, a sliding ring, a sleeve, a spring and a limiting block, the top end of the screw rod is fixedly provided with the limiting block, the bottom side of the limiting block is fixedly provided with the spring movably sleeved on the outer side of the screw rod, the bottom end of the spring is fixedly provided with the sliding ring axially slidably mounted on the screw rod, the bottom side of the sliding ring is fixedly provided with the sleeve movably sleeved on the outer side of the screw rod, one side of each of the two baffles is provided with an arc-shaped opening, each of the two arc-shaped openings is fixedly provided with a connecting block, and the two baffles are respectively hingedly connected with the sliding seat through the corresponding connecting blocks, and the two connecting blocks are located below the sleeve.
[0016] Preferably, the cleaning filter assembly comprises two filter plates, two fixing blocks and two guide wheels, the outer side of the screw sleeve is symmetrically fixedly provided with the two fixing blocks, the two fixing blocks are each hingedly provided with a filter plate, the two filter plates are each in movable contact with the bottom inner wall of the cultivation box body on the side away from each other, and the two filter plates are each rotatably provided with a guide wheel rolling on the bottom inner wall of the cultivation box body.
[0017] Preferably, the self-resetting assembly comprises two rotating rods and two torsion springs, the top opening position of the cultivation box body is rotatably provided with two rotating rods arranged in parallel with each other, the two top covers are each radially fixedly provided on the corresponding rotating rod, the top cover is provided with a mounting slot centered on the rotating rod, the mounting slot is fixedly provided with a torsion spring movably sleeved on the outer side of the supporting rod, and the torsion spring is fixedly connected with the inner wall of the side of the top opening of the cultivation box body.
[0018] Preferably, the top two sides of the screen frame are each fixedly provided with a vertical rod.
[0019] Preferably, the two sides of the screen frame are each fixedly provided with a sliding block, the two inner walls of the cultivation box body are each provided with a sliding groove, and the two sliding blocks are each slidingly provided in the corresponding sliding groove.
[0020] The beneficial effects of the present application are:
[0021] By setting the screen frame, sliding block, sliding groove, screw sleeve, lead screw and motor and other structures, automatic screening and grading of oat seeds are realized, the screening efficiency and accuracy are greatly improved, the manual labor intensity is reduced, the lifting and overturning of the screen frame and the top cover are realized through mechanical structures, manual operation is not required, the automation degree of the equipment is improved, errors and safety hazards caused by manual operation are avoided, and through the setting of the sliding seat and the supporting cylinder and other structures, the dibble plate can stably stir the oat seeds, accumulation and blockage of the seeds during the screening process are avoided, and the screening effect is further improved.
[0022] In addition, oat seed soaking screening and cultivation treatment and other operations can also be realized by injecting an appropriate amount of water into the cultivation box body, and the setting of the filter plate and the guide wheel and other structures can effectively collect the screened impurities and convey them to the position close to the discharge pipe, facilitating subsequent processing work. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0024] Figure 1A three-dimensional structural schematic view of a oat seed cultivation device for oat planting according to the present application is provided;
[0025] Figure 2 A three-dimensional structural schematic view of a oat seed cultivation device for oat planting according to the present application is provided; Figure 1
[0026] Figure 3 A three-dimensional structural schematic view of a oat seed cultivation device for oat planting according to the present application is provided;
[0027] Figure 4 A three-dimensional structural schematic view of a oat seed cultivation device for oat planting according to the present application is provided; Figure 2
[0028] Figure 5 A three-dimensional structural schematic view of a oat seed cultivation device for oat planting according to the present application is provided;
[0029] Figure 6 A three-dimensional structural schematic view of a oat seed cultivation device for oat planting according to the present application is provided.
[0030] In the figure: 1, cultivation box; 11, top cover; 111, rotating rod; 112, torsional spring; 12, discharge pipe; 13, guide chute; 2, sieve frame; 201, sliding block; 202, vertical rod; 21, screw sleeve; 22, lead screw; 23, motor; 3, sliding seat; 31, support cylinder; 32, rotating shaft; 321, push plate; 322, gear; 323, toothed disc; 33, fixed rod; 331, push rod; 34, baffle; 341, connecting block; 342, sliding ring; 343, sleeve; 344, spring; 345, limiting block; 35, filter plate; 351, guide wheel. DETAILED DESCRIPTION
[0031] The technical solutions of the present application will be described clearly and completely below in connection with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0032] Reference Figures 1-6 The utility model provides an oat seed cultivation device for oat planting, which comprises a cultivation box 1, two top covers 11, a sieve frame 2, a screw sleeve 21, a lead screw 22, a motor 23 and two discharge pipes 12, the two discharge pipes 12 are fixedly installed at the bottoms of the two sides of the cultivation box 1 and keep a communicating state with the cultivation box 1, the top of the cultivation box 1 is provided with an opening, two rotating rods 111 are rotatably installed at the opening position of the top of the cultivation box 1 and are arranged in parallel with each other, the two top covers 11 are fixedly installed on the corresponding rotating rods 111 in a radial direction, an installation groove is formed in the top cover 11 and centered on the rotating rod 111, a torsional spring 112 is fixedly installed in the installation groove and arranged on the outside of a supporting rod, and the torsional spring 112 is fixedly connected to the inner wall of one side of the opening of the top of the cultivation box 1, so that the top cover 11 can be self-reset when no upward overturning force is applied to the top cover 11;
[0033] The sieve frame 2 is slidingly installed in the cultivation box 1, the lead screw 22 is rotatably installed on the inner wall of the bottom of the cultivation box 1, the motor 23 is fixedly installed at the bottom of the cultivation box 1, the output shaft of the motor 23 is axially fixedly connected to the bottom end of the lead screw 22, and the screw sleeve 21 is fixedly installed on the sieve frame 2 and threadedly sleeved on the outside of the lead screw 22;
[0034] The lead screw 22 is axially slidingly installed with a sliding seat 3, the bottom side of the sliding seat 3 is fixedly installed with a supporting cylinder 31, a plurality of rotating shafts 32 are rotatably installed on the supporting cylinder 31 in a radial direction, a plurality of push plates 321 are fixedly installed on the rotating shafts 32 and arranged in parallel with each other, the included angle between the plane where the push plate 321 is located and the rotating shaft 32 is 45 degrees, the plurality of push plates 321 can be controlled to stir when the rotating shaft 32 rotates, the direction of rotation of the rotating shaft 32 can be different to realize the effect of pushing the material in different directions, a plurality of fixed rods 33 are fixedly installed on the supporting cylinder 31 in a radial direction, a plurality of push rods 331 are fixedly installed on the fixed rods 33 and arranged vertically, the plurality of push rods 331 can be controlled to push the material on the inner wall of the bottom of the sieve frame 2 when the supporting cylinder 31 rotates, one end of each of the plurality of rotating shafts 32 extends into the supporting cylinder 31 and is fixedly sleeved with a gear 322, a toothed disc 323 is fixedly installed on the screw sleeve 21, and the plurality of gears 322 are engaged with the toothed disc 323, so that the plurality of rotating shafts 32 can be controlled to rotate when the supporting cylinder 31 rotates with the lead screw 22;
[0035] The top side of the sliding seat 3 is hingedly installed with two baffles 34 arranged symmetrically, the two baffles 34 are arranged in a fan shape, and the top side and the bottom side of the baffle 34 are arranged in an upward convex shape, which can avoid the phenomenon that the oat seeds fall from the sieve frame 2 during the up-down movement of the sieve frame 2, the top end of the lead screw 22 is fixedly installed with a limiting block 345, the bottom side of the limiting block 345 is fixedly installed with a spring 344 which is sleeved on the outside of the lead screw 22, the bottom end of the spring 344 is fixedly installed with a sliding ring 342 which is axially slidably installed on the lead screw 22, the bottom side of the sliding ring 342 is fixedly installed with a sleeve 343 which is sleeved on the outside of the lead screw 22, the side of each of the two baffles 34 away from each other is provided with an arc-shaped opening, and each of the two arc-shaped openings is fixedly installed with a connecting block 341, and the two baffles 34 are hingedly connected to the sliding seat 3 through the corresponding connecting blocks 341, and the two connecting blocks 341 are located below the sleeve 343, so that when the sliding seat 3 moves upward with the sieve frame 2 to a certain height, the bottom side of the sleeve 343 abuts against the plurality of connecting blocks 341, so that the baffle 34 is deflected upward, and the top side of the sieve frame 2 is in an open state, facilitating the addition of the oat seeds to be cultivated to the sieve frame 2;
[0036] The outside of the screw sleeve 21 is fixedly installed with two fixed blocks, the two fixed blocks are hingedly installed with two filter plates 35, the side of each of the two filter plates 35 away from each other is in movable contact with the bottom inner wall of the cultivation box body 1, and each of the two filter plates 35 is rotatably installed with a guide wheel 351 which is rotatably installed on the bottom inner wall of the cultivation box body 1, which can control the filter plate 35 to clean the bottom inner wall of the cultivation box body 1 when the sieve frame 2 drives the screw sleeve 21 to move upward or downward, and can filter the water near the lead screw 22 to avoid the influence of impurities on the normal work of the lead screw 22;
[0037] The two sides of the sieve frame 2 are provided with discharge openings at lower positions, and the two sides of the cultivation box body 1 are provided with guide slots 13 which are fixedly installed on the cultivation box body 1 and are matched with the discharge openings of the cultivation box body 1.
[0038] In this embodiment, in order to be able to push the top cover 11 to flip after the sieve frame 2 slides upward along the inner wall of the cultivation box body 1 to a certain distance, thereby achieving the effect of not needing to manually open the top cover 11, the top sides of the two sides of the sieve frame 2 are fixedly installed with vertical rods 202.
[0039] In this embodiment, in order to be able to provide guidance for the sieve frame 2, thereby being able to guarantee the stable lifting of the sieve frame 2, and being able to limit the lifting range of the sieve frame 2, the two sides of the sieve frame 2 are fixedly installed with sliding blocks 201, and the two sides of the inner wall of the cultivation box body 1 are provided with sliding grooves, and the two sliding blocks 201 are slidably installed in the corresponding sliding grooves.
[0040] Working principle: in use, first turn on the power, through the motor 23 control screw 22 rotation, in the cooperation of the screw sleeve 21 can control the screen frame 2 upward movement, while the sliding seat 3 will follow the screw 22 synchronous movement, so that the support cylinder 31 driven by multiple rotating shaft 32 around the screw 22 revolution, and because of the gear 322 and gear plate 323 set can make the rotating shaft 32 in revolution while realizing the rotation, so as to control multiple dial plate 321 to the oat seeds in the screen frame 2 for dial, with the screen frame 2 continuously rising, sleeve 343 and connecting block 341 abutment and compression spring 344, with the screen frame 2 continue to rise, so that the baffle 34 away from each other side up deflection, so as to make the top side of the screen frame 2 is open state, while the screen frame 2 on the vertical rod 202 will be the top cover 11 up top open.
[0041] Add the oat seeds in the screen frame 2 need to be cultivated, then control the motor 23 reverse rotation, after the screen frame 2 into the incubation box 1, and the top cover 11 in the action of the torsional spring 112 realizes the automatic closing state, control motor 23 forward and reverse rotation alternately, so as to realize the screening of oat seeds, after screening complete into the incubation box 1, inject the appropriate amount of water, then control the screen frame 2 in water reciprocating motion, so as to be able to deal with the oat seeds in the sundries and realize the oat seeds soaking processing, after soaking processing control screen frame 2 upward movement, with the screen frame 2 upward movement can make the dial plate 321 will oat seeds to the edge of the screen frame 2 fluctuation, when the screen frame 2 on the discharge port and the discharge port on the incubation box 1 keep in the state of communication, can make the oat seeds through the guide chute 13 discharge, or can also continue to adjust the screen frame 2 to the incubation box 1 above the oat seeds discharge.
[0042] When the cultivation is needed, the oat seeds to be cultivated are placed on the screen mesh in the screen frame 2, and then the appropriate amount of water is added into the cultivation box 1 so that the oat seeds can be soaked and germinated in the water. As the soaking time goes on, the oat seeds will sprout and produce some impurities and waste. At this time, the driving motor 4 drives the lead screw 22 to rotate, and the lead screw 22 drives the sleeve 21 to move up and down along the axis direction of the lead screw 22. The up and down movement of the sleeve 21 drives the screen frame 2 to move up and down along the inner wall of the cultivation box 1, so as to realize the screening and cultivation of the oat seeds. During the up and down movement of the screen frame 2, the filter plate 35 cleans the bottom inner wall of the cultivation box 1, so as to avoid the influence of the impurities on the normal work of the lead screw 22. At the same time, the filter plate 35 can also filter the water near the position of the lead screw 22, so as to ensure the cleanliness of the water. When the screen frame 2 is lifted to a certain height, the vertical rod 202 at the top of the screen frame 2 pushes the top cover 11 to overturn, so as to open the top of the cultivation box 1, which is convenient for observing and managing the oat seeds in the cultivation device. In addition, the sliding blocks 201 on both sides of the screen frame 2 slide in the sliding grooves on both sides of the cultivation box 1, so as to provide stable guidance for the screen frame 2 and limit the lifting range of the screen frame 2, so as to ensure the normal operation of the cultivation device.
[0043] The oat seed cultivation device for oat planting provided by the present application is described in detail above. The principles and implementation modes of the present application are described by applying specific examples in this paper. The above examples are only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.
Claims
1. An oat seed cultivation device for oat planting, characterized by, The application relates to a cultivation box, which comprises a cultivation box body (1), two top covers (11), a self-resetting assembly, a screen frame (2), a screw sleeve (21), a lead screw (22), a motor (23), a stirring assembly, a poking assembly, a transmission assembly one, a transmission assembly two, a falling-prevention assembly, a cleaning and filtering assembly and two discharge pipes (12). Two discharge pipes (12) are fixedly arranged at the bottom of the cultivation box body (1) and are in communication with the cultivation box body (1), the top of the cultivation box body (1) is provided with an opening, the self-resetting assembly and the two top covers (11) are arranged in the opening of the cultivation box body (1), and the two top covers (11) are connected with the self-resetting assembly. The screen frame (2) is slidably arranged in the cultivation box body (1), the lead screw (22) is rotatably arranged on the inner wall of the bottom of the cultivation box body (1), the motor (23) is fixedly arranged at the bottom of the cultivation box body (1), the output shaft of the motor (23) is fixedly connected with the bottom end of the lead screw (22) in the axial direction, and the screw sleeve (21) is fixedly arranged on the screen frame (2) and is threadedly sleeved outside the lead screw (22). The lead screw (22) is axially slidably provided with a sliding seat (3), the bottom side of the sliding seat (3) is fixedly provided with a supporting cylinder (31), the stirring assembly and the poking assembly are arranged in the screen frame (2) and are connected with the supporting cylinder (31), the transmission assembly one is arranged on the screw sleeve (21) and is connected with the stirring assembly, the falling-prevention assembly is arranged on the sliding seat (3), the transmission assembly two is arranged on the lead screw (22), the falling-prevention assembly is matched with the transmission assembly two, and the cleaning and filtering assembly is arranged on the screw sleeve (21) and is in contact with the inner wall of the bottom and the inner walls of the front and back of the cultivation box body (1). The lower sides of the screen frame (2) are provided with discharge ports, and the inner walls of the cultivation box body (1) are fixedly provided with guide grooves (13) matched with the discharge ports of the cultivation box body (1). The falling-prevention assembly comprises two baffles (34), the top side of the sliding seat (3) is hingedly provided with two symmetrically arranged baffles (34), the two baffles (34) are provided in a fan shape, and the top side and the bottom side of the baffle (34) are provided in an upward protruding manner. The transmission assembly 2 includes two connecting blocks (341), a sliding ring (342), a sleeve (343), a spring (344), and a limiting block (345). The limiting block (345) is fixedly installed at the top of the lead screw (22). The spring (344) is movably sleeved on the outside of the lead screw (22) and fixedly installed on the bottom side of the limiting block (345). The sliding ring (342) is axially slidably installed on the lead screw (22) and fixedly installed on the bottom side of the sliding ring (342). The sleeve (343) is movably sleeved on the outside of the lead screw (22). The two baffles (34) have arc-shaped openings on their respective sides. The connecting blocks (341) are fixedly installed in the two arc-shaped openings. The two baffles (34) are hinged to the sliding seat (3) through the corresponding connecting blocks (341), and the two connecting blocks (341) are located below the sleeve (343).
2. The oat seed growing device for oat plantation as claimed in claim 1 wherein: The stirring assembly includes multiple rotating shafts (32) and multiple levers (321). Multiple rotating shafts (32) are radially mounted on the support cylinder (31). Multiple levers (321) are fixedly mounted on each of the multiple rotating shafts (32) and are arranged in parallel with each other. The angle between the plane of the levers (321) and the rotating shafts (32) is 45 degrees.
3. The oat seed growing device for oat plantation as claimed in claim 1 wherein: The feeding assembly includes multiple fixed rods (33) and multiple levers (331). Multiple fixed rods (33) are radially fixedly installed on the support cylinder (31), and each of the multiple fixed rods (33) has a vertically arranged lever (331) fixedly installed on it.
4. The oat seed growing device for oat plantation as claimed in claim 2, wherein: The transmission assembly includes a gear disc (323) and multiple gears (322). The ends of multiple rotating shafts (32) that are close to each other extend into the support cylinder (31) and are respectively fixedly fitted with gears (322). The gear disc (323) is fixedly installed on the screw sleeve (21), and the multiple gears (322) mesh with the gears (322).
5. The oat seed growing device for oat plantation as claimed in claim 1 wherein: The cleaning filter assembly includes two filter plates (35), two fixing blocks and two guide wheels (351). Two fixing blocks are symmetrically fixed on the outer side of the screw sleeve (21). Filter plates (35) are hinged on both fixing blocks. The side of the two filter plates (35) that is far away from each other is in contact with the bottom inner wall of the incubation box (1). Guide wheels (351) that are rolled on the bottom inner wall of the incubation box (1) are rotatably installed on both filter plates (35).
6. The oat seed growing device for oat plantation as claimed in claim 1 wherein: The self-resetting assembly includes two rotating rods (111) and two torsion springs (112). Two rotating rods (111) arranged in parallel are rotatably installed at the top opening of the incubation box (1). Two top covers (11) are radially fixedly installed on the corresponding rotating rods (111). An installation groove is provided on the top cover (11) with the rotating rod (111) as the center. A torsion spring (112) is fixedly installed in the installation groove and movably sleeved on the outside of the support rod. The torsion spring (112) is fixedly connected to the inner wall of one side of the top opening of the incubation box (1).
7. The oat seed growing device for oat plantation as claimed in claim 1 wherein: Vertical rods (202) are fixedly installed on both sides of the top of the sieve frame (2).
8. The oat seed growing device for oat plantation as claimed in claim 1 wherein: Both sides of the screen frame (2) are fixedly provided with sliding blocks (201), and the inner walls of both sides of the cultivation box (1) are provided with sliding grooves, and the two sliding blocks (201) are respectively slidably installed in the corresponding sliding grooves.
Citation Information
Patent Citations
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