Seedling raising and racking mechanism

Abstract

The utility model discloses a seedling raising racking mechanism which comprises a left rack and a right rack which are connected through a connecting rod, and further comprises a first chain wheel, a second chain wheel, a third chain wheel, a fourth chain wheel, a first chain, a second chain, a storage rack and a driving assembly. The first chain wheel is rotationally connected with the left frame, the second chain wheel is rotationally connected with the right frame, the third chain wheel is rotationally connected with the left frame and located above the first chain wheel, and the fourth chain wheel is rotationally connected with the right frame. The first chain is wound on the first chain wheel and the third chain wheel, and the second chain is wound on the second chain wheel and the fourth chain wheel; the storage rack is arranged between the first chain and the second chain. The driving assembly is used for driving one of the first chain wheel, the second chain wheel, the third chain wheel and the fourth chain wheel to rotate. The center of the first sprocket is connected with the center of the second sprocket through a transmission shaft. According to the utility model, the labor intensity of workers is reduced, the working efficiency of the workers is improved, and the space utilization rate is high.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a seedling raising rack mechanism. Background Art

[0002] With the improvement of people's living standards and changes in eating habits, green food has become widely popular. People are no longer satisfied with the quantity of vegetables available, but are more concerned with quality indicators such as appearance, quality, and food safety. Compared with the hydroponic sprouts currently available on the market, the growth environment of soil-grown sprouts is more similar to that of natural growth. They are more easily able to absorb nutrients from the soil, and their nutrients are richer and higher in nutritional content.

[0003] Compared to hydroponics, soil-grown sprouts are heavier during the planting period because the trays contain nutrient soil and other culture media. Currently, workers are required to place the trays containing culture soil and seeds on shelves. Due to the heavy weight of the trays, large-scale production requires a large number of workers to complete the tray placement process. Moreover, the efficiency of each worker is not high, resulting in high production costs for soil-grown sprouts, making large-scale production difficult. Utility Model Content

[0004] The utility model provides a seedling raising shelf mechanism to solve the deficiencies of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The transmission gear of the present invention is a gear selected from the group consisting of a first gear and a second gear, and a second gear selected from the group consisting of a first gear and a second gear, and a second gear selected from the group consisting of a first gear and a second gear.

[0007] In some embodiments, there is a distance between the projection of the first sprocket on the horizontal plane and the projection of the third sprocket on the horizontal plane, and the seedling rack mechanism also includes a fifth sprocket, a sixth sprocket, a seventh sprocket and an eighth sprocket; the fifth sprocket is rotatably connected to the left frame, and the fifth sprocket is located between the first sprocket and the third sprocket in the vertical direction; the sixth sprocket is rotatably connected to the right frame, and the sixth sprocket and the fifth sprocket have the same specifications and are coaxial; the seventh sprocket is rotatably connected to the left frame, and the seventh sprocket is approximately at the same height as the first sprocket; the eighth sprocket is rotatably connected to the right frame, and the eighth sprocket and the seventh sprocket have the same specifications and are coaxial; the first chain is engaged with the fifth sprocket and the seventh sprocket, and the second chain is engaged with the sixth sprocket and the eighth sprocket.

[0008] In some embodiments, a tangent line at a vertex position of the pitch circle of the first sprocket is tangent to the pitch circle of the fifth sprocket.

[0009] In some embodiments, a tangent line at the lowest point of the pitch circle of the first sprocket is tangent to the pitch circle of the seventh sprocket.

[0010] In some embodiments, the plurality of racks are spaced apart along the extending direction of the first chain.

[0011] In some embodiments, the first chain is provided with a first pin extending toward the second chain, the second chain is provided with a second pin extending toward the first chain and coaxial with the first pin, and the storage rack includes a left end plate, a right end plate, a first cross bar and a second cross bar; the left end plate is provided with a first pin hole, and the first pin is inserted into the first pin hole; the right end plate is provided with a second pin hole, and the second pin is inserted into the second pin hole, and the right end plate and the left end plate are both located between the first chain and the second chain; one end of the first cross bar is connected to the left end plate, and the other end of the first cross bar is connected to the right end plate; one end of the second cross bar is connected to the left end plate, and the other end of the second cross bar is connected to the right end plate.

[0012] In some embodiments, the storage rack includes a plurality of limiting members spaced apart along the length direction of the first crossbar, the upper ends of the limiting members are provided with accommodating grooves, and the lower ends of the limiting members are slidably connected to the first crossbar and the second crossbar.

[0013] In some embodiments, the first crossbar and the second crossbar are both parallel to the first pin shaft, and the distance between the axis of the first pin shaft and the axis of the first crossbar is equal to the distance between the axis of the first pin shaft and the second crossbar.

[0014] In some embodiments, the drive assembly includes a motor, a driving sprocket, a driven sprocket and a third chain; the motor is fixed on the ground or fixedly connected to the left frame; the driving sprocket is connected to the rotating shaft of the motor; the driven sprocket is connected to the transmission shaft; the third chain is wound around the driving sprocket and the driven sprocket to realize transmission between the driving sprocket and the driven sprocket.

[0015] In some embodiments, an adjustment assembly is provided at the bottom of the left frame and the right frame, and the adjustment assembly includes a sleeve, a screw and a foot cup. The sleeve is fixedly connected to the bottom of the left frame or the right frame, and a threaded hole is provided on the sleeve. The screw is screwed into the threaded hole, and the foot cup is connected to the lower end of the screw.

[0016] Compared with the existing technology, the seedling raising rack mechanism provided by the utility model can realize the transfer of the tray from a low position to a high position, which is conducive to reducing the labor intensity of workers, improving their work efficiency, and promoting the increase of the production capacity of soil-grown sprouts. In addition, the seedling raising rack mechanism also has the advantages of easy processing and manufacturing, stable and reliable structure, low maintenance cost, and high space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 paying any creative work.

[0018] Figure 1 It is a three-dimensional diagram of an embodiment of the present utility model.

[0019] Figure 2 It is a left view of an embodiment of the utility model.

[0020] Figure 3 This is a structural diagram of the left frame, right frame and connecting rod after assembly in an embodiment of the present utility model.

[0021] Figure 4 It is a structural diagram of a storage rack in an embodiment of the present utility model.

[0022] Figure 5 It is a structural diagram of the limiting member in the embodiment of the present utility model.

[0023] Figure 6 It is a structural diagram of the left end plate in an embodiment of the present utility model.

[0024] Figure 7 yes Figure 1 A partial enlarged view of point Ⅰ in the middle.

[0025] Figure 8 yes Figure 1 A partial enlarged view of point II in the middle.

[0026] Figure 9 It is a schematic diagram of the installation of the left end plate in the embodiment of the present utility model.

[0027] The following are the descriptions of the reference numerals:

[0028] In the figure: 1, left frame; 2, right frame; 3, connecting rod; 4, first sprocket; 5, second sprocket; 6, third sprocket; 7, fourth sprocket; 8, first chain; 9, second chain; 10, transmission shaft; 11, fifth sprocket; 12, sixth sprocket; 13, seventh sprocket; 14, eighth sprocket; 15, first pin; 16, second pin; 17, left end plate; 1701, first pin hole; 1702, first through hole; 1703, second through hole; 18, right end plate; 1801, second pin hole; 19, first cross bar; 20, second cross bar; 21, stopper; 210 1. First baffle; 2102. Connecting plate; 2103. Second baffle; 2104. First clamping plate; 2105. Second clamping plate; 2106. Third clamping plate; 2107. Fourth clamping plate; 2108. Accommodating groove; 22. Motor; 23. Driving sprocket; 24. Driven sprocket; 25. Third chain; 26. Sleeve; 27. Screw; 28. Foot cup; 29. ​​First bolt; 30. Second bolt; 31. Bearing seat; 32. First axis; 33. Second axis; 34. Third axis; 35. Base; 100. Storage rack; 200. Drive assembly; 300. Adjustment assembly. DETAILED DESCRIPTION

[0029] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present application, but are not intended to limit the scope of the present application. The present application may be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.

[0030] The present application provides these embodiments to make this application thorough and complete, and to fully express the scope of this application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0031] It should be noted that, in the description of this application, unless otherwise specified, "plurality" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicating directions or positional relationships, are intended solely to facilitate the description of this application and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0032] In addition, the terms "first," "second," and similar terms used in this application do not denote any order, quantity, or importance, but are simply used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the word include the elements listed after the word, and do not exclude the possibility of other elements being included.

[0033] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0034] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0036] See also Figures 1-9 As shown, the utility model provides a seedling raising and placing mechanism. Figure 3 As shown, the seedling raising rack mechanism includes a left frame 1 and a right frame 2 arranged at intervals, and the left frame 1 and the right frame 2 are connected by multiple connecting rods 3. The left frame 1 and the right frame 2 can be welded by profiles. The height of the front end of the left frame 1 and the right frame 2 is lower than the height of the rear end thereof. The shape of the left frame 1, the right frame 2 and the connecting rods 3 after assembly is approximately stepped.

[0037] The seedling raising rack mechanism also includes a first sprocket 4, a second sprocket 5, a third sprocket 6, a fourth sprocket 7, a first chain 8, a second chain 9, a storage rack 100 and a drive assembly 200. The first sprocket 4 is rotatably connected to the left frame 1, the second sprocket 5 is rotatably connected to the right frame 2, and the second sprocket 5 has the same specifications as the first sprocket 4 and is coaxial; the third sprocket 6 is rotatably connected to the left frame 1 and is located above the first sprocket 4; the fourth sprocket 7 is rotatably connected to the right frame 2, and the fourth sprocket 7 has the same specifications as the third sprocket 6 and is coaxial; the first chain 8 is wound around the first sprocket 4 and the third sprocket 6, and the second chain 9 is wound around the second sprocket 5 and the fourth sprocket 7; the storage rack 100 is located between the first chain 8 and the second chain 9 and its two ends are rotatably connected to the first chain 8 and the second chain 9 respectively; the driving assembly 200 is used to drive one of the first sprocket 4, the second sprocket 5, the third sprocket 6, and the fourth sprocket 7 to rotate; wherein, the center of the first sprocket 4 is connected to the center of the second sprocket 5 by a transmission shaft 10.

[0038] like Figure 1 As shown, the two ends of the transmission shaft 10 are respectively mounted on the left frame 1 and the right frame 2 via two bearing seats 31, and the first sprocket 4 and the second sprocket 5 are fixed to the transmission shaft 10. This allows the first sprocket 4 to be rotationally connected to the left frame 1, and the second sprocket 5 to be rotationally connected to the right frame 2. At the same time, the first sprocket 4 and the second sprocket 5 are linked, and the first sprocket 4 and the second sprocket 5 rotate at the same angular velocity. For ease of use, the top height of the first sprocket 4 and the second sprocket 5 generally does not exceed 1.3m; the third sprocket 6 and the fourth sprocket 7 are at a higher height than the first sprocket 4, and the height of the center of the third sprocket 6 can be 2.5 to 4m, so that the storage rack 100 can be lifted to a higher position, thereby enabling the seedling raising rack mechanism to accommodate more vegetable trays.

[0039] In order to realize the rotational connection between the third sprocket 6 and the left frame 1, and the rotational connection between the fourth sprocket 7 and the right frame 2, in this embodiment, a shaft 32 is set at a high place, and the two ends of the shaft 32 are respectively installed on the top of the left frame 1 and the right frame 2 through two bearing seats 31. The shaft 32 is parallel to the aforementioned transmission shaft 10, and the third sprocket 6 and the fourth sprocket 7 are both installed on the shaft 32.

[0040] The rack 100 of the present invention is used to store vegetable trays. Because the first sprocket 4 and the second sprocket 5 have the same diameter and number of teeth, and the third sprocket 6 and the fourth sprocket 7 have the same diameter and number of teeth, the first chain 8 and the second chain 9 have the same movement speed. When the chains move, they drive the rack 100 to cyclically move between a low position and a high position. The drive assembly 200 of the present invention drives any one of the first sprocket 4, the second sprocket 5, the third sprocket 6, and the fourth sprocket 7 to rotate, thereby driving the first chain 8 and the second chain 9 to move. Figure 1In the embodiment shown, the driving assembly 200 drives the first sprocket 4 to rotate. At this time, the driving assembly 200 can be set at a lower position, which can facilitate the installation and maintenance of the driving assembly 200.

[0041] In the present invention, there is a gap between the projection of the first sprocket 4 on the horizontal plane and the projection of the third sprocket 6 on the horizontal plane, and the seedling raising rack mechanism also includes a fifth sprocket 11, a sixth sprocket 12, a seventh sprocket 13 and an eighth sprocket 14. Among them, the fifth sprocket 11 is rotatably connected to the left frame 1, and is located between the first sprocket 4 and the third sprocket 6 in the vertical direction; the sixth sprocket 12 is rotatably connected to the right frame 2, and the sixth sprocket 12 and the fifth sprocket 11 have the same specifications and are coaxial; the seventh sprocket 13 is rotatably connected to the left frame 1, and the seventh sprocket 13 and the first sprocket 4 are approximately at the same height; the eighth sprocket 14 is rotatably connected to the right frame 2, and the eighth sprocket 14 and the seventh sprocket 13 have the same specifications and are coaxial; the first chain 8 is meshed with the fifth sprocket 11 and the seventh sprocket 13, and the second chain 9 is meshed with the sixth sprocket 12 and the eighth sprocket 14.

[0042] like Figure 1 As shown, in order to realize the rotational connection between the fifth sprocket 11 and the left frame 1, and the rotational connection between the sixth sprocket 12 and the right frame 2, a second shaft 33 is further provided in this embodiment. The second shaft 33 is parallel to the aforementioned transmission shaft 10, and the height of the second shaft 33 is located between the transmission shaft 10 and the first shaft 32. The projection of the second shaft 33 on the horizontal plane is located between the projection of the transmission shaft 10 on the horizontal plane and the projection of the first shaft 32 on the horizontal plane. The two ends of the second shaft 33 are respectively mounted on the left frame 1 and the right frame 2 through two bearing seats 31, and the fifth sprocket 11 and the sixth sprocket 12 are both mounted on the second shaft 33.

[0043] See again Figure 1 In order to realize the rotational connection between the seventh sprocket 13 and the left frame 1 and the rotational connection between the eighth sprocket 14 and the right frame 2, a three-shaft 34 is further provided in this embodiment. The three-shaft 34 is parallel to the aforementioned transmission shaft 10, and the height of the three-shaft 34 is roughly flush with the transmission shaft 10. The three-shaft 34 is located behind the transmission shaft 10. The two ends of the three-shaft 34 are respectively mounted on the left frame 1 and the right frame 2 through two bearing seats 31. The seventh sprocket 13 and the eighth sprocket 14 are both mounted on the second shaft 33. When implementing the utility model, the relative positional relationship between the transmission shaft 10, the first shaft 32, the second shaft 33, and the third shaft 34 can be referred to. Figure 1 and Figure 2 .

[0044] In the present invention, the tangent line at the top position of the pitch circle of the first sprocket 4 is tangent to the pitch circle of the fifth sprocket 11, so that the portion of the first chain 8 between the first sprocket 4 and the fifth sprocket 11 is horizontal, and the portion of the second chain 9 between the second sprocket 5 and the sixth sprocket 12 is horizontal. Such a structural design provides convenience for the staff to place the vegetable tray on the storage rack 100.

[0045] In a further improvement, the tangent line of the lowest point of the pitch circle of the first sprocket 4 is tangent to the pitch circle of the seventh sprocket 13, so that the portion of the first chain 8 between the first sprocket 4 and the seventh sprocket 13 is horizontal, and the portion of the second chain 9 between the second sprocket 5 and the eighth sprocket 14 is also horizontal. Figure 2 As shown, in this embodiment, the overall shape of the first chain 8 and the second chain 9 is approximately L-shaped.

[0046] In the present invention, multiple racks 100 are spaced evenly along the extension direction of the first chain 8. The number of racks 100 can be determined based on the length of the first chain 8. Generally, the longer the first chain 8, the more racks 100 can be installed, which in turn allows for the placement of more vegetable trays. In order to clearly illustrate the structure of the seedling raising rack mechanism, the drawings of the present invention only show a small number of racks 100 installed on the chain. In actual use, the number of racks 100 can be increased. Furthermore, the first chain 8 and the second chain 9 are shown schematically, without showing the specific details of the chains.

[0047] In the present utility model, the first chain 8 is provided with a first pin 15 extending toward the second chain 9, and the second chain 9 is provided with a second pin 16 extending toward the first chain 8 and coaxial with the first pin 15. The storage rack 100 includes a left end plate 17, a right end plate 18, a first cross bar 19 and a second cross bar 20; a first pin hole 1701 is provided on the left end plate 17, and the first pin 15 is inserted into the first pin hole 1701; a second pin hole 1801 is provided on the right end plate 18, and the second pin 16 is inserted into the second pin hole 1801, and the right end plate 18 and the left end plate 17 are both located between the first chain 8 and the second chain 9; one end of the first cross bar 19 is connected to the left end plate 17, and the other end of the first cross bar 19 is connected to the right end plate 18; one end of the second cross bar 20 is connected to the left end plate 17, and the other end of the second cross bar 20 is connected to the right end plate 18. The number of the first pin shaft 15 and the second pin shaft 16 is equal to the number of the storage rack 100, the first pin hole 1701 is loosely fitted with the first pin shaft 15, and the second pin hole 1801 is loosely fitted with the second pin shaft 16. The left end plate 17 can rotate around the first pin shaft 15, and the right end plate 18 can rotate around the second pin shaft 16.

[0048] In the present invention, the storage rack 100 includes multiple stoppers 21 spaced apart along the length of the first crossbar 19. The upper ends of the stoppers 21 are provided with receiving slots 2108, and the lower ends of the stoppers 21 are slidably connected to the first crossbar 19 and the second crossbar 20. Every two stoppers 21 form a set of components for securing a vegetable tray. Each vegetable tray is placed within the receiving slots 2108 of two stoppers 21, thereby securing the vegetable tray. By slidably connecting the stoppers 21 to the first crossbar 19 and the second crossbar 20, the distance between adjacent stoppers 21 can be adjusted, thereby adapting the storage rack 100 to accommodate vegetable trays of different sizes.

[0049] like Figure 5 As shown, the limiting member 21 is made of plastic material through injection molding, and includes a first baffle 2101, a connecting plate 2102, a second baffle 2103, a first clamping plate 2104, a second clamping plate 2105, a third clamping plate 2106, and a fourth clamping plate 2107. Among them, the first baffle 2101 and the second baffle 2103 are parallel to each other and connected by the connecting plate 2102. The first baffle 2101, the connecting plate 2102 and the second baffle 2103 together define the aforementioned accommodating groove 2108. The first baffle 2101 and the second baffle 2103 are used to prevent the vegetable tray from falling; the first plywood 2104, the second plywood 2105, the third plywood 2106 and the fourth plywood 2107 are all located below the connecting plate 2102 and vertically connected to the connecting plate 2102. The distance between the first plywood 2104 and the second plywood 2105 matches the size of the first cross bar 19, and the distance between the third plywood 2106 and the fourth plywood 2107 matches the size of the second cross bar 20. The first cross bar 19 is clamped between the first plywood 2104 and the second plywood 2105, and the second cross bar 20 is clamped between the third plywood 2106 and the fourth plywood 2107.

[0050] In some preferred embodiments, the connecting plate 2102 between the first baffle 2101 and the first clamping plate 2104 and / or the second baffle 2103 and the fourth clamping plate 2107 can be extended and retracted, so that the width of the accommodating groove 2108 can be adjusted, so that the accommodating groove 2108 can be suitable for vegetable trays of more specifications.

[0051] In the present invention, the first crossbar 19 and the second crossbar 20 are parallel to the first pin 15, and the distance between the axis of the first pin 15 and the axis of the first crossbar 19 is equal to the distance between the axis of the first pin 15 and the second crossbar 20. Figure 4As shown, the left end of the first crossbar 19 is connected to the left end plate 17 via a first bolt 29, and the left end of the second crossbar 20 is connected to the left end plate 17 via a second bolt 30. The left end plate 17 is provided with a first through hole 1702 for the first bolt 29 to pass through, and a second through hole 1703 for the second bolt 30 to pass through. The line connecting the centers of the first pin hole 1701, the first through hole 1702, and the second through hole 1703 forms an isosceles triangle. The distance between the first pin hole 1701 and the first through hole 1702 is equal to the distance between the first pin hole 1701 and the second through hole 1703. The connection method between the first crossbar 19 and the second crossbar 20 and the right end plate 18 can refer to the connection method between the first crossbar 19 and the second crossbar 20 and the left end plate 17, and will not be repeated here. The above structural design enables the rack 100 to always maintain a posture under the action of gravity, preventing the rack 100 from tilting, which is beneficial to reducing the safety accidents of trays falling and injuring people, thereby making the seedling shelving mechanism more safe.

[0052] In the present invention, the drive assembly 200 includes a motor 22, a driving sprocket 23, a driven sprocket 24 and a third chain 25; the motor 22 is fixed on the ground or fixedly connected to the left frame 1, the driving sprocket 23 is connected to the rotating shaft of the motor 22, and the driven sprocket 24 is connected to the transmission shaft 10; the third chain 25 is wound around the driving sprocket 23 and the driven sprocket 24 to realize the transmission between the driving sprocket 23 and the driven sprocket 24. In other embodiments, the motor 22 can also be connected to the transmission shaft 10 through other transmission mechanisms (such as gear transmission, pulley transmission). Figure 1 As shown, in the specific implementation of this embodiment, a base 35 is set at the bottom of the left frame 1, and the motor 22 is fixed on the base 35.

[0053] In the present invention, the bottom of the left frame 1 and the right frame 2 are both provided with an adjustment assembly 300, which includes a sleeve 26, a screw 27 and a foot cup 28. The sleeve 26 is fixedly connected to the bottom of the left frame 1 or the right frame 2. The sleeve 26 is provided with a threaded hole, the screw 27 is screwed into the threaded hole, and the foot cup 28 is connected to the lower end of the screw 27. Figure 1 As shown, in this embodiment, the number of the adjustment components 300 is four, and the setting of the adjustment components 300 can be used to level the seedling raising rack mechanism to ensure that the seedling raising rack mechanism can be placed stably on the ground.

[0054] During use, workers can use a transport trolley to carry the trays after covering the soil and sowing to the front of the seedling raising mechanism. Then, the workers stand in front of the seedling raising mechanism and place the trays on the empty space of the rack 100. Since the first sprocket 4 and the second sprocket 5 are relatively low, most workers can easily complete the tray raising operation. After the rack 100 at the front is full of trays, the first chain 8 and the second chain 9 can be moved simultaneously by the motor 22, thereby transferring the rack 100 full of trays to a higher position. Therefore, the workers only need to place the trays on the low-position rack 100, and the transfer of the trays from the low position to the high position is completed by the seedling raising mechanism, which can reduce the labor intensity of the workers, help improve the work efficiency of the workers, and then promote the improvement of the production capacity of soil-cultured sprouts. Moreover, the seedling raising mechanism is not limited by the height of the workers. Compared with traditional racks, the seedling raising mechanism can carry the rack 100 to a higher position, so that full use of space can be achieved.

[0055] The utility model utilizes the fifth sprocket 11, the sixth sprocket 12, the seventh sprocket 13, and the eighth sprocket 14 to bend the paths of the first chain 8 and the second chain 9. The first chain 8 and the second chain 9 are generally L-shaped, forming a structure with a bottom extending forward. This allows more shelves 100 to be positioned low, which helps improve worker efficiency. The seedling raising rack mechanism provided by the utility model is easy to manufacture, has a stable and reliable structure, and has a low failure rate, thereby reducing subsequent maintenance costs.

[0056] So far, the various embodiments of the present application have been described in detail. To avoid obscuring the concept of the present application, some details well known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0057] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art will understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, as long as there are no structural conflicts, the various technical features mentioned in the various embodiments may be combined in any manner.

Claims

1. A seedling raising rack mechanism, comprising a left rack and a right rack spaced apart, wherein the left rack and the right rack are connected by a plurality of connecting rods, characterized in that: Also includes: a first sprocket, rotatably connected to the left frame; a second sprocket, rotatably connected to the right frame, the second sprocket having the same specifications as the first sprocket and being coaxial; a third sprocket, rotatably connected to the left frame and located above the first sprocket; A fourth sprocket is rotatably connected to the right frame, the fourth sprocket having the same specifications as the third sprocket and being coaxial; a first chain wound around the first sprocket and the third sprocket; a second chain wound around the second sprocket and the fourth sprocket; a storage rack, located between the first chain and the second chain, with both ends rotatably connected to the first chain and the second chain respectively; as well as a driving assembly for driving one of the first sprocket, the second sprocket, the third sprocket, and the fourth sprocket to rotate; Wherein, the center of the first sprocket is connected to the center of the second sprocket through a transmission shaft.

2. The seedling raising rack mechanism according to claim 1, characterized in that: There is a distance between the projection of the first sprocket on the horizontal plane and the projection of the third sprocket on the horizontal plane, and the seedling raising mechanism further includes: a fifth sprocket, rotatably connected to the left frame, wherein the fifth sprocket is located between the first sprocket and the third sprocket in the vertical direction; a sixth sprocket, rotatably connected to the right frame, the sixth sprocket having the same specifications as the fifth sprocket and being coaxial; a seventh sprocket, rotatably connected to the left frame, the seventh sprocket being substantially at the same height as the first sprocket; and an eighth sprocket, rotatably connected to the right frame, the eighth sprocket having the same specifications as the seventh sprocket and being coaxial; The first chain is engaged with the fifth sprocket and the seventh sprocket, and the second chain is engaged with the sixth sprocket and the eighth sprocket.

3. The seedling raising rack mechanism according to claim 2, characterized in that: A tangent line at the vertex position of the pitch circle of the first sprocket is tangent to the pitch circle of the fifth sprocket.

4. The seedling raising rack mechanism according to claim 3, characterized in that: A tangent line of the lowest point of the pitch circle of the first sprocket is tangent to the pitch circle of the seventh sprocket.

5. The seedling raising rack mechanism according to any one of claims 1 to 4, characterized in that: The plurality of storage racks are distributed at intervals along the extending direction of the first chain.

6. The seedling raising rack mechanism according to claim 5, characterized in that: The first chain is provided with a first pin extending toward the second chain, the second chain is provided with a second pin extending toward the first chain and coaxial with the first pin, and the storage rack includes: a left end plate, having a first pin hole formed thereon, wherein the first pin shaft is inserted into the first pin hole; a right end plate, having a second pin hole formed thereon, the second pin shaft being inserted into the second pin hole, the right end plate and the left end plate being located between the first chain and the second chain; a first crossbar, one end of which is connected to the left end plate and the other end of which is connected to the right end plate; and A second cross bar has one end connected to the left end plate and the other end connected to the right end plate.

7. The seedling raising rack mechanism according to claim 6, characterized in that: The storage rack includes a plurality of limiting members spaced apart along the length direction of the first cross bar. The upper ends of the limiting members are provided with accommodating grooves, and the lower ends of the limiting members are slidably connected to the first cross bar and the second cross bar.

8. The seedling raising rack mechanism according to claim 7, characterized in that: The first crossbar and the second crossbar are both parallel to the first pin shaft, and the distance between the axis of the first pin shaft and the axis of the first crossbar is equal to the distance between the axis of the first pin shaft and the second crossbar.

9. The seedling raising rack mechanism according to any one of claims 1-4, 6-8, characterized in that: The drive assembly includes: a motor, fixed on the ground or fixedly connected to the left frame; a driving sprocket connected to the rotating shaft of the motor; A driven sprocket connected to the transmission shaft; and The third chain is wound around the driving sprocket and the driven sprocket to realize transmission between the driving sprocket and the driven sprocket.

10. The seedling raising rack mechanism according to any one of claims 1-4, 6-8, characterized in that: The bottom of the left frame and the right frame are both provided with an adjustment assembly, and the adjustment assembly includes a sleeve, a screw and a foot cup. The sleeve is fixedly connected to the bottom of the left frame or the right frame, and a threaded hole is provided on the sleeve. The screw is screwed into the threaded hole, and the foot cup is connected to the lower end of the screw.

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