CN211671579U

CN211671579U - Oat is grown seedlings and uses seedling culture rack

Info

Publication number: CN211671579U
Application number: CN202020086694.6U
Authority: CN
Inventors: 梁国玲; 贾志锋; 刘勇; 马祥
Original assignee: Qinghai Academy of Animal Science and Veterinary Medicine
Current assignee: Qinghai Academy of Animal Science and Veterinary Medicine
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-10-16
Anticipated expiration: 2030-01-15

Abstract

The utility model relates to the technical field of agricultural equipment, in particular to a seedling cultivation rack for oat seedling cultivation, which comprises a bottom bracket, a seedling cultivation plate, a seedling cultivation bed, a rotating mechanism and an interval adjusting mechanism; two sides of the seedling bed are fixedly arranged on the rotating mechanism, the other end of the rotating mechanism is in clearance fit with the bottom support, the plurality of seedling trays are suspended on the spacing adjusting mechanism and are uniformly distributed along the length direction of the seedling bed, and the other end of the spacing adjusting mechanism is in clearance fit with the inner walls of the upper side and the lower side of the seedling bed; the device cultivates a set position control convenient and fast more, the cost of using manpower sparingly, cultivates set position control's controllability better, and adjustable illumination angle improves and cultivates the effect.

Description

Oat is grown seedlings and uses seedling culture rack

Technical Field

The utility model relates to an agricultural equipment technical field, concretely relates to oat is grown seedlings and uses seedling culture rack.

Background

At present, rumex is perennial root herbaceous plant of Rumex in Polygonaceae, has the excellent characteristics of crude protein content, high biological yield, drought resistance, alkali resistance, barren resistance and the like, is one of excellent pasture varieties vigorously introduced and popularized in recent years in an agriculture and pasture staggered area and an elm forest grass beach area in northern Shaanxi, and is also an excellent herbaceous plant for preventing water and soil loss. At present, because the seeds of the rumex pasture are tiny, the thousand seed weight is only 3 to 4 grams, and the seedlings are usually planted by adopting a seedling transplanting method. The existing grass seed seedling raising method adopts a field open field direct seeding mode, the seedling stage is slightly shaded, burning due to burning sun is prevented, and soil moisture is required to be kept at a proper level. However, due to the influence of natural disasters such as inconvenient control of soil temperature and humidity in the seedling stage, improper field management measures, soil diseases and insect pests and the like, the pasture seedlings are irregular in size and poor in quality, and a large amount of seedling shortage phenomena occur. In order to solve the problem of fruit cracking of red dates in the mature period, professional technicians improve measures from the aspects of seed particle screening and early-stage pretreatment, field land preparation, seedling bed management and the like, but the effect is microscopic, and partial agricultural parks or enterprises adopt modern facility agricultural technologies such as facility agricultural greenhouses and the like to carry out large-scale seedling raising production, so that the seedling raising efficiency of the Rumex pasture seeds is improved. However, for some artificial planting farmers with planting areas in northern Shaanxi regions, or some scattered planting areas, mountain slopes and other small fields which are inconvenient to adopt large-scale seedling raising, the large-scale seedling raising technology is difficult to implement. Therefore, technical devices must be sought and perfected, and the difficulty of raising seedlings of the rumex pasture seeds in the artificial planting area which is inconvenient or not suitable for greenhouse seedling raising is solved.

In conclusion, the grass seed seedling raising method for small fields such as scattered planting areas of scattered households, mountain slopes and the like has the defects that grass seedlings are uneven in size and poor in quality, a large number of seedlings are lacking, fruit cracking occurs in the mature period of red dates, large-scale seedling raising production is difficult to implement, the manufacturing cost is high, the input amount is large, and the technical requirement is strict.

Chinese patent CN201621250894.0 discloses a pasture seed soilless three-dimensional seedling raising device, which is provided with: at least one three-dimensional support; the three-dimensional bracket is transversely connected with a rotating middle shaft; two support rods are vertically and respectively arranged at two ends of the rotating middle shaft in parallel; a plurality of seedling raising trays are uniformly and transversely connected to the supporting rod; rock wool is filled in the seedling raising tray; the seedling raising tray is connected with an electric small water pump through a guide pipe; and the small electric water pump is arranged in the nutrition trough. The utility model can solve the technical problems of inconvenient management operation and the like in the traditional field direct seeding and seedling raising process; the seedling raising tray can realize rotation and fixing operation according to the seedling management requirement; the supply amount of water or nutrient solution in the seedling raising process can be realized, and the water and the nutrient solution can be recycled; the adopted rock wool has good hydrophilicity, air permeability and fixity, and the design of the cross seedling-raising holes is more favorable for the growth and development of the plant seedling root system.

The device has played certain effect but the mode of its adjustment seedling tray's height and interval to improving the area of cultivating is adjusted through the buckle, wastes time and energy and angle regulation restriction is great, needs to provide one kind and can adjust the device of seedling tray position more conveniently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oat is grown seedlings and is used seedling culture rack, the device cultivate dish position control convenient and fast more, the cost of using manpower sparingly, cultivate dish position control's controllability better, but the effect is cultivated in the improvement of adjustable illumination angle.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides an oat is grown seedlings and is used seedling culture rack, including the bottom support, educate seedling tray, educate seedling bed, rotary mechanism and interval adjustment mechanism, educate seedling bed both sides fixed mounting on rotary mechanism, the rotary mechanism other end and bottom support clearance fit, a plurality of seedling trays suspend in midair on interval adjustment mechanism and along educating seedling bed's length direction evenly distributed, interval adjustment mechanism other end and educate seedling bed upper and lower both sides inner wall clearance fit.

As an optimal scheme of the seedling cultivation frame for oat seedling cultivation, the rotating mechanism comprises a first rotating driving mechanism, a first gear, a first rotating shaft, a second gear and a second rotating shaft, the first rotating driving mechanism vertically penetrates through the side wall of the bottom support, a first gear is fixedly sleeved on the first rotating driving mechanism, the axes of the first rotating driving mechanism and the first rotating driving mechanism are collinear, one end of the first rotating shaft is fixed on a seedling cultivation bed, the other end of the first rotating shaft is in clearance fit with the side wall of the bottom support, the axes of the first rotating shaft and the first rotating driving mechanism are parallel, a second gear is fixedly sleeved on the first rotating shaft, the axes of the first rotating shaft and the second rotating shaft are collinear, the second rotating shaft is meshed with the first gear, the second rotating shaft and the first rotating shaft are symmetrically and fixedly installed on two sides of the seedling cultivation bed.

As a preferable scheme of the seedling culture rack for raising the oat seedlings, the first rotary driving mechanism is a first rotary handle, the first rotary handle is a structure that a holding part is symmetrical around an axis, and an axis vertical to the side wall of the bottom bracket is arranged below the holding part of the first rotary handle.

As an optimal scheme of oat seedling raising frame, interval adjustment mechanism is including the suspension, the crossbeam, screw drive mechanism, the slider, slide rail and second rotary driving mechanism, the suspension with educate the axle clearance fit of seedling tray both sides, crossbeam and suspension clearance fit, one side and slider fixed connection that the control end was kept away from to the crossbeam, one side that the crossbeam is close to the control end and screw drive mechanism's work portion fixed connection, screw drive mechanism work portion opposite side and slider fixed connection, fixed mounting is on educating the inner wall that seedling tray is close to and keeps away from the both sides of control end symmetrically, the slider symmetry and even with the slide rail sliding fit of both sides, second rotary driving mechanism runs through perpendicularly educates seedling bed and terminal and screw drive mechanism fixed connection.

As an oat is grown seedlings and is used seedling culture rack's an optimal scheme, screw drive mechanism is including ball, right angle awl ring gear and right angle bevel gear, a plurality of ball's screw rod is fixed end to end and the axis collineation each other, the ball at both ends is respectively in the upper and lower both sides inner wall clearance fit who educates the seedling bed, right angle awl ring gear cover is established on the screw rod of ball below and both axis collineations, right angle bevel gear fixes at the terminal and both axis collineations of second rotary driving mechanism, right angle bevel gear and right angle awl ring gear meshing and axis mutually perpendicular, ball's movable part and slider fixed connection.

As an optimal selection scheme of the seedling culture rack for oat seedling culture, the thread transmission mechanism further comprises a coupler, and the coupler is sleeved at the joint of the ball screw and the screw rod and has collinear axes.

As a preferable scheme of the seedling culture rack for raising the oat seedlings, the second rotary driving mechanism is a second rotary handle, the second rotary handle is a structure that the holding part is symmetrical around the axis, and an axis vertical to the side wall of the bottom bracket is arranged below the holding part of the second rotary handle.

As an optimal scheme of the seedling culture rack for oat seedling culture, the seedling culture rack further comprises a locking mechanism, wherein the fixed end of the locking mechanism is arranged on the side wall of the bottom support, and the movable end of the locking mechanism is inserted into the fixed end and intervenes in the rotating surface of the first rotating handle through the gap of the first rotating handle during locking operation.

As an optimal selection scheme of the seedling culture frame for oat seedling culture, the locking mechanism comprises a bolt and a bolt hole, the bolt hole is formed in the side wall of the bottom support, and the bolt is in clearance fit with the bolt hole during locking operation.

The utility model has the advantages that:

the bottom bracket provides support for the whole equipment, the seedling bed is of a square frame structure, the orientation of the seedling bed can be adjusted by adjusting the rotating mechanism, the interval adjusting mechanism and the seedling tray are turned along with the turning of the seedling bed, the interval between the seedling beds can be changed by adjusting the interval adjusting mechanism, on one hand, the sunlight angle can be changed to adjust the cultivation illumination, on the other hand, the occupied area can be reduced and the space can be saved when the cultivation frame needs to be packed, the threaded transmission mechanism of the interval adjusting mechanism adopts a shaft coupling to ensure the stability of torque transmission between all screw rods of the ball screw during rotation, and compared with the modes of welding and the like, the operation is simple and convenient to disassemble, the rotating mechanism can generate unnecessary deflection under the action of gravity, the first rotating handle can not rotate when the locking mechanism is clamped between the first rotating handle and the bottom bracket so, after the first rotating handle is fixed, the first gear is also locked, the first gear is locked with the second gear meshed with the first gear, and finally the rotating mechanism is fixed.

The utility model has the advantages that:

1. the position of the cultivation plate is adjusted more conveniently and rapidly, and the labor cost is saved;

2. the controllability of the position adjustment of the cultivation plate is better;

3. the illumination angle can be adjusted to improve the cultivation effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a first perspective view of a seedling cultivation rack for raising oat seedlings according to an embodiment of the present invention;

fig. 2 is a second perspective view of a seedling cultivation rack for raising oat seedlings according to an embodiment of the present invention;

fig. 3 is a front view of a seedling cultivation rack for raising oat seedlings according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a left side view of a seedling cultivation rack for raising oat seedlings according to an embodiment of the present invention;

fig. 6 is a top view of a seedling cultivation rack for raising oat seedlings according to an embodiment of the present invention;

fig. 7 is a perspective view of a rotating mechanism of the seedling cultivation rack for raising oat seedlings according to the embodiment of the present invention;

fig. 8 is a partial three-dimensional exploded view of a seedling cultivation rack for raising oat seedlings according to an embodiment of the present invention;

in the figure:

1. a bottom bracket;

2. a seedling raising plate;

3. a seedling bed;

4. a rotation mechanism; 4a, a first rotary driving mechanism; 4a1, a first rotating handle; 4b, a first gear; 4c, a first rotating shaft; 4d, a second gear; 4e, a second rotating shaft;

5. a spacing adjustment mechanism; 5a, a suspension; 5b, a cross beam; 5c, a thread transmission mechanism; 5c1, ball screw; 5c2, right angle bevel gear ring; 5c3, right angle bevel gear; 5c4, a coupler; 5d, a sliding block; 5e, a slide rail; 5f, a second rotation driving mechanism; 5f1, a second rotating handle;

6. a locking mechanism; 6a, a bolt; 6b and a bolt hole.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-8, shown is oat grow seedlings with seedling culture rack, including bottom support 1, educate seedling tray 2, educate seedling bed 3, rotary mechanism 4 and interval adjustment mechanism 5, educate seedling bed 3 both sides fixed mounting on rotary mechanism 4, the rotary mechanism 4 other end and bottom support 1 clearance fit, a plurality of educate seedling tray 2 hang in midair on interval adjustment mechanism 5 and along educating seedling bed 3's length direction evenly distributed, interval adjustment mechanism 5 other end and educate seedling bed 3 upper and lower both sides inner wall clearance fit. Bottom support 1 provides the support for whole equipment, and it is square frame structure to educate seedling bed 3, adjusts the orientation that can adjust educate seedling bed 3 through slewing mechanism 4, and interval adjustment mechanism 5 turns to along with educating seedling bed 3 with educating seedling tray 2, can change the interval between educating seedling tray 2 through adjusting interval adjustment mechanism 5, can change sunshine angle modulation on the one hand and cultivate illumination, and on the other hand can reduce area and save space when the culture rack is packed up to needs.

The rotating mechanism 4 comprises a first rotating driving mechanism 4a, a first gear 4b, a first rotating shaft 4c, a second gear 4d and a second rotating shaft 4e, the first rotating driving mechanism 4a vertically penetrates through the side wall of the bottom support 1, the first gear 4b is fixedly sleeved on the first rotating driving mechanism 4a, the axes of the first rotating driving mechanism 4a and the second rotating shaft 4e are collinear, one end of the first rotating shaft 4c is fixed on the seedling bed 3, the other end of the first rotating shaft 4c is in clearance fit with the side wall of the bottom support 1, the axes of the first rotating shaft 4c and the first rotating driving mechanism 4a are parallel, the second gear 4d is fixedly sleeved on the first rotating shaft 4c, the axes of the first rotating shaft 4c and the axes of the first rotating shaft 4c are collinear, the second rotating shaft 4d is meshed with the first gear 4b, the second rotating shaft 4e and the first rotating shaft 4c are symmetrically and fixedly installed on. The staff can make first gear 4b take place rotatoryly through first rotary driving mechanism 4a, and first gear 4b drives second gear 4d of meshing with it and rotates together, and second gear 4d drives the coaxial rotation of first pivot 4c of fixed connection with it, and the bed 3 of growing seedlings with first pivot 4c fixed connection uses first pivot 4c and second pivot 4e of both sides as the axle coaxial rotation in bottom bracket 1, realizes the regulation to the bed 3 angle of growing seedlings.

The first rotary drive mechanism 4a is a first rotary handle 4a1, the first rotary handle 4a1 is a structure in which the holding portion is symmetrical about the axis, and the first rotary handle 4a1 holds the shaft under the portion perpendicular to the side wall of the bottom bracket 1. The symmetrical structure of the grip portion of the first rotating handle 4a1 facilitates the grip of the worker after the rotation.

The spacing adjusting mechanism 5 comprises a suspension 5a, a cross beam 5b, a thread transmission mechanism 5c, a sliding block 5d, a sliding rail 5e and a second rotary driving mechanism 5f, the suspension 5a is in clearance fit with shafts on two sides of the seedling raising disk 2, the cross beam 5b is in clearance fit with the suspension 5a, one side, away from the control end, of the cross beam 5b is fixedly connected with the sliding block 5d, one side, close to the control end, of the cross beam 5b is fixedly connected with a working part of the thread transmission mechanism 5c, the other side of the working part of the thread transmission mechanism 5c is fixedly connected with the sliding block 5d, the sliding rail 5e is symmetrically and fixedly installed on the inner walls, close to the two sides of the control end, of the seedling raising disk 2, the sliding block 5d is symmetrically and uniformly in sliding fit with the sliding rails 5e on the two sides, and the second rotary driving mechanism 5 f. Suspension 5a and crossbeam 5b together will educate seedling tray 2 and suspend and make the vertical normal growth who guarantees the seedling upwards in the culture medium surface in educating seedling tray 2, the staff exerts the drive action of second rotary driving mechanism 5f, screw drive mechanism 5c turns into the ascending power of straight line direction with the moment of torsion of second rotary driving mechanism 5f, thereby it slides along slide rail 5e to drive slider 5d of 3 inner wall both sides of educating the seedling bed and makes suspension 5a, crossbeam 5b and educate seedling tray 2 and slide together, screw drive mechanism 5 c's screw thread part pitch is different, so the displacement distance of its work portion is different makes slider 5d sliding distance different, it is different finally to educate the movement distance between the seedling tray 2, the accessible makes the relative displacement between educating seedling tray 2 become even in order to satisfy the effect of interval regulation to the setting up of screw thread.

The thread transmission mechanism 5c comprises a ball screw 5c1, a right-angle bevel gear ring 5c2 and a right-angle bevel gear 5c 3;

the screw rods of the ball screws 5c1 are fixedly connected end to end and have collinear axes, the ball screws 5c1 at two ends are respectively in clearance fit with the inner walls of the upper side and the lower side of the seedling bed 3, the right-angle bevel gear ring 5c2 is sleeved on the screw rod of the ball screw 5c1 at the lowest part and has collinear axes, the right-angle bevel gear 5c3 is fixed at the tail end of the second rotary driving mechanism 5f and has collinear axes, the right-angle bevel gear 5c3 is meshed with the right-angle bevel gear ring 5c2, the axes are perpendicular to each other, and the movable part of the ball screw 5c1 is fixedly connected with the sliding block 5 d. The number of the ball screws 5c1 is at least two, the worker drives the right angle bevel gear 5c3 to rotate coaxially through the second rotary driving mechanism 5f, the right angle bevel gear 5c3 rotates the torque by 90 degrees through the right angle bevel gear ring 5c2 engaged with the right angle bevel gear ring, the right angle bevel gear ring 5c2 rotates around the axis to drive the screw rod of the ball screw 5c1 fixedly connected with the right angle bevel gear ring to rotate coaxially, when the screw rod of the ball screw 5c1 rotates, the movable part of the ball screw 5c1 is pushed to move along the axis of the ball screw 5c1, and the movable part of the ball screw 5c1 drives the slide block 5d which is expected to be fixed to move along the slide rail.

The screw transmission mechanism 5c further comprises a coupler 5c4, wherein the coupler 5c4 is sleeved at the joint of the ball screw 5c1 and the axes are collinear. The threaded transmission mechanism 5c of the distance adjusting mechanism 5 adopts the coupler 5c4 to ensure the stability of torque transmission among all the screw rods of the ball screw 5c1 during rotation, and is simple to operate and convenient to disassemble compared with welding and other modes.

The second rotary drive mechanism 5f is a second rotary handle 5f1, the second rotary handle 5f1 is a structure in which the holding portion is symmetrical about the axis, and the second rotary handle 5f1 holds the shaft perpendicular to the side wall of the bottom bracket 1 below the portion. 5a1 is that the symmetrical structure of the gripping part is favorable to the staff's grip after the rotation, and does not need extra drive part, has practiced thrift the cost.

The locking device further comprises a locking mechanism 6, wherein a fixed end of the locking mechanism 6 is arranged on the side wall of the bottom bracket 1, and a movable end of the locking mechanism 6 is inserted into the fixed end and is inserted into a rotating surface of the first rotating handle 4a1 through a gap of the first rotating handle 4a1 during locking operation. The rotating mechanism 4 can deflect unnecessarily due to the action of gravity, the locking mechanism 6 is clamped between the first rotating handle 4a1 and the bottom bracket 1, so that the first rotating handle 4a1 cannot rotate when no human intervention occurs, the first rotating handle 4a1 is fixed, the first gear 4b is also locked, the first gear 4b is locked with the second gear 4d meshed with the first gear, and finally the rotating mechanism 4 and the seedling bed 3 are fixed.

The locking mechanism 6 comprises a bolt 6a and a bolt hole 6b, the bolt hole 6b is formed in the side wall of the bottom support 1, and the bolt 6a is in clearance fit with the bolt hole 6b during locking operation. The rotation of the first rotary handle 4a1 can be blocked by the insertion of the latch hole 6b and the latch 6a, and the unnecessary rotation of the seedling bed 3 is finally prevented.

The utility model discloses a theory of operation:

the bottom support 1 provides support for the whole equipment, the seedling bed 3 is of a square frame structure, the orientation of the seedling bed 3 can be adjusted by adjusting the rotating mechanism 4, the interval adjusting mechanism 5 and the seedling tray 2 are turned along with the turning of the seedling bed 3, the interval between the seedling beds 3 can be changed by adjusting the interval adjusting mechanism 5, on one hand, the sunshine angle can be changed to adjust the cultivation illumination, on the other hand, the cultivation frame can be folded, the space is saved, the threaded transmission mechanism 5c of the interval adjusting mechanism 5 adopts the coupler 5c4 to ensure the stability of torque transmission among all the screw rods of the ball screw 5c1 during rotation, compared with the modes of welding and the like, the operation is simple and convenient, the rotating mechanism 4 can unnecessarily deflect due to the action of gravity, the locking mechanism 6 is clamped between the first rotating handle 4a1 and the bottom support 1, so that the first rotating handle 4a1 can not rotate when the manual intervention is carried out, when the first rotary handle 4a1 is fixed, the first gear 4b is also locked, and the first gear 4b locks the second gear 4d engaged therewith, and finally the rotary mechanism 4 is fixed.

It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims

1. The utility model provides an oat is grown seedlings and is used seedling culture frame, a serial communication port, including bottom support (1), educate seedling tray (2), educate seedling bed (3), rotary mechanism (4) and interval adjustment mechanism (5), educate seedling bed (3) both sides fixed mounting on rotary mechanism (4), rotary mechanism (4) other end and bottom support (1) clearance fit, a plurality of educate seedling tray (2) suspend in midair on interval adjustment mechanism (5) and along the length direction evenly distributed who educates seedling bed (3), interval adjustment mechanism (5) other end and educate seedling bed (3) upper and lower both sides inner wall clearance fit.

2. The seedling culture rack for raising oat seedlings according to claim 1, wherein the rotating mechanism (4) comprises a first rotating driving mechanism (4a), a first gear (4b), a first rotating shaft (4c), a second gear (4d) and a second rotating shaft (4e), the first rotating driving mechanism (4a) vertically penetrates through the side wall of the bottom support (1), the first gear (4b) is fixedly sleeved on the first rotating driving mechanism (4a) and the axes of the first rotating driving mechanism and the first rotating driving mechanism are collinear, one end of the first rotating shaft (4c) is fixedly arranged on the seedling bed (3), the other end of the first rotating shaft is in clearance fit with the side wall of the bottom support (1), the first rotating shaft (4c) is parallel to the axis of the first rotating driving mechanism (4a), the second gear (4d) is fixedly sleeved on the first rotating shaft (4c) and the axes of the first rotating driving mechanism and the second rotating shaft are collinear, the second gear (4d) is meshed with the first gear (4b), the second rotating shaft (4e) and the first rotating shaft (4c) are symmetrically and fixedly arranged at two sides of the seedling bed (3), and the other end of the second rotating shaft (4e) is in clearance fit with the opposite side wall of the other side of the bottom bracket (1).

3. A seedling-cultivating shelf for raising oat seedlings according to claim 2, characterized in that the first rotary driving means (4a) is a first rotary handle (4a1), the first rotary handle (4a1) is a structure in which the holding part is symmetrical about the axis, and the first rotary handle (4a1) has an axis perpendicular to the side wall of the bottom bracket (1) below the holding part.

4. The seedling culture rack for raising oat seedlings according to claim 1, characterized in that the spacing adjustment mechanism (5) comprises a suspension (5a), a cross beam (5b), a screw transmission mechanism (5c), a slide block (5d), a slide rail (5e) and a second rotary driving mechanism (5f), the suspension (5a) is in clearance fit with shafts on two sides of the seedling culture disk (2), the cross beam (5b) is in clearance fit with the suspension (5a), one side of the cross beam (5b) far away from the control end is fixedly connected with the slide block (5d), one side of the cross beam (5b) near the control end is fixedly connected with a working part of the screw transmission mechanism (5c), the other side of the working part of the screw transmission mechanism (5c) is fixedly connected with the slide block (5d), the slide rail (5e) is symmetrically and fixedly installed on inner walls on two sides of the seedling culture disk (2) near and far away from the control end, the sliding blocks (5d) are symmetrically and uniformly in sliding fit with the sliding rails (5e) on the two sides, the second rotary driving mechanism (5f) vertically penetrates through the seedling raising bed (3), and the tail end of the second rotary driving mechanism is fixedly connected with the threaded transmission mechanism (5 c).

5. A seedling culture rack for raising oat seedlings according to claim 4, characterized in that the screw transmission mechanism (5c) comprises a ball screw (5c1), right angle awl ring gear (5c2) and right angle bevel gear (5c3), the screw rod of a plurality of ball (5c1) is fixed continuous end to end each other and the axis collineation, ball (5c1) at both ends are respectively in the upper and lower both sides inner wall clearance fit of bed (3) of growing seedlings, right angle awl ring gear (5c2) cover is established on the screw rod of ball (5c1) of below and both axis collineations, right angle bevel gear (5c3) are fixed at second rotary drive mechanism (5f) end and both axis collineations, right angle bevel gear (5c3) and right angle awl ring gear (5c2) meshing and axis mutually perpendicular, ball (5c1) movable part and slider (5d) fixed connection.

6. The seedling culture rack for raising oat seedlings according to claim 5, wherein the screw transmission mechanism (5c) further comprises a coupler (5c4), and the coupler (5c4) is sleeved at the screw connection position of the ball screw (5c1) and has collinear axes.

7. A seedling culture rack for raising oat seedlings according to claim 4, characterized in that the second rotary driving mechanism (5f) is a second rotary handle (5f1), the second rotary handle (5f1) is a structure in which the holding part is symmetrical about the axis, and the lower side of the holding part of the second rotary handle (5f1) is an axis perpendicular to the side wall of the bottom bracket (1).

8. A seedling culture rack for raising oat seedlings according to claim 3, characterized in that the seedling culture rack further comprises a locking mechanism (6), a fixed end of the locking mechanism (6) is arranged on the side wall of the bottom bracket (1), and a movable end of the locking mechanism (6) is inserted into the fixed end and is inserted into a rotating plane of the first rotating handle (4a1) through a gap of the first rotating handle (4a1) during locking operation.

9. A seedling culture rack for raising oat seedlings according to claim 8, characterized in that the locking mechanism (6) comprises a bolt (6a) and a bolt hole (6b), the bolt hole (6b) is arranged on the side wall of the bottom bracket (1), and the bolt (6a) is in clearance fit with the bolt hole (6b) during locking operation.