A sweet potato seed tuber storage box

Abstract

The present invention relates to the technical field of storage boxes, and discloses a sweet potato seed tuber storage box, which includes an outer box body. A top cover is installed at the top end of the outer box body. An external drive assembly is fixedly installed at one end of the outer box body. A positioning and guiding assembly is fixedly installed at one end of the outer box body. In this sweet potato seed tuber storage box, a plurality of vertically arranged and extractable main body assemblies are arranged inside the outer box body. In this way, when it is necessary to regularly check the storage state of sweet potatoes in the storage box, the handle can be pulled externally and inserted into the top end of the main body assembly, and then the main body assembly and the placement assembly installed thereon can be extracted in the vertical direction, and can be slid out along the support block for observation. In this way, the sweet potatoes in the storage box can be divided into multiple vertical individual modules and extracted. In this way, when checking, it is not necessary for all sweet potatoes to be exposed to the current air environment for a long time, ensuring the storage effect of the storage box on sweet potatoes.

Description

Technical Field

[0001] The invention relates to the technical field of storage boxes, in particular to a sweet potato seed storage box. Background Art

[0002] Sweet potato seed storage can generally be divided into equipment storage and cellar storage. Cellar storage cannot flexibly control storage conditions. The appropriate temperature for sweet potato seed storage is controlled at 10℃ to 14℃, and the humidity is maintained between 85% and 95%. This is the best way to ensure the quality of seed potato preservation. Cellar storage cannot well control and adjust storage conditions. On the other hand, the workload is large and it is not convenient to check the storage conditions regularly. Therefore, more and more storage boxes are used to store sweet potato seed potatoes. However, there are still some problems in the use of existing storage boxes, as follows:

[0003] The existing storage boxes cannot separate and store the sweet potatoes well during storage, and most of them are stacked for storage. This is not only not conducive to the gas flow inside the storage box, but also causes different respiration degrees of the sweet potatoes in different positions. At the same time, since it is impossible to completely guarantee that each sweet potato can be stored normally, it is necessary to open the storage box regularly for inspection. However, the existing storage boxes cannot be conveniently inspected for storage conditions due to the stacking method, and the storage box needs to be completely opened, which will cause all the sweet potatoes in the storage box to be exposed to the current air environment for a long time, which will cause abnormal respiration of the sweet potatoes, thereby greatly increasing the probability of sweet potato corruption and disease. Therefore, the existing storage boxes cannot guarantee the storage effect of the sweet potatoes well. For this reason, we propose a sweet potato seed potato storage box. Summary of the invention

[0004] The invention provides a sweet potato seed storage box, which has the advantages of convenient inspection and good storage effect, and solves the problems raised in the above background technology.

[0005] The present invention provides the following technical solution: a sweet potato seed storage box, comprising an outer box body, a top cover is installed on the top of the outer box body, an external drive component is fixedly installed on one end of the outer box body, a positioning guide component is fixedly installed on one end of the outer box body, a support block is fixedly installed on the top of the outer box body, an extension support component is movably installed on the other end of the outer box body, a straight groove is opened inside the outer box body, a positioning straight rod is fixedly installed inside the outer box body, a main body component is movably installed in the positioning straight rod, a placement component is movably installed on the side of the main body component, and a rack is movably inserted inside the outer box body;

[0006] The external drive assembly comprises a seat body, an external drive motor is embedded and fixedly installed inside the seat body, an external drive screw is fixedly installed on the output shaft of the external drive motor, a push plate is movably installed on the external drive screw, and a positioning plate is embedded and movably connected on the push plate;

[0007] The positioning and guiding component includes a horizontal base, and a positioning block is movably installed inside the horizontal base;

[0008] The extension and support component includes an extension plate and a locking hook. One end of the extension plate is fixedly installed with a docking rod, and the locking hook is movably installed inside the support block;

[0009] The main body component includes a main rod. An inner groove is provided on the main rod, a docking slot is provided at the top end of the main rod, and a sliding straight groove is provided on the main rod;

[0010] The placement component includes side blocks. A positioning groove is provided on the side surface of the side blocks. An adjusting screw is movably installed below the inside of the side blocks. An end block is movably sleeved on the adjusting screw. A gear and a placement rod are respectively movably connected to the end block. A tray is inserted and installed at the top end of the side blocks.

[0011] In a preferred embodiment, the support blocks are evenly arranged on both sides of the top end of the outer box body. The two sides of the top end of the support blocks are rounded structures. The support blocks are fixedly installed in the middle between each adjacent straight groove. The support blocks are arranged collinearly with the extension and support component.

[0012] In a preferred embodiment, the positioning straight rods are arranged in pairs and symmetrically fixedly installed on both sides of each straight groove. The top height of the positioning straight rods does not exceed the height of the top end of the main body component. The placement component is movably clamped on the positioning straight rods. The rack is of a multi-segment structure and each segment is of a structure that can rotate unidirectionally upward. At the same time, permanent magnets are arranged at the ends of adjacent two segments for adsorption connection.

[0013] In a preferred embodiment, the external drive motor is arranged on the side surface of the outer box body. The external drive motor periodically switches between forward and reverse drives. The extending length of the external drive screw is greater than the length of the positioning and guiding component. The pushing plate is in a T shape. The pushing plate can be detachably fixedly installed with the rack through bolts. The pushing plate is arranged below the positioning and guiding component. The positioning plate is fixedly installed on the side surface of the outer box body.

[0014] In a preferred embodiment, the horizontal base is in a U-shaped structure and a horizontal channel is provided inside. The positioning block is slidably arranged in the horizontal channel, and through sockets are provided at the upper and lower ends of the positioning block. The size of the sockets is the same as the cross-sectional size of the rack. The length of the horizontal base is greater than the length of a single section of the rack.

[0015] In a preferred embodiment, the extension plate is rotatably mounted on one side of the outer box body, and the rotating shaft is arranged on one side of the end of the extension plate. The locking hook is rotatably mounted by being embedded in the nearest support block. The length of the docking rod is equal to the distance between the extension plate and the support block after the extension plate rotates by 90 degrees. A notch is formed on the upper surface of the docking rod after it rotates by 90 degrees, and the locking hook can be rotatably inserted into the notch.

[0016] In a preferred embodiment, the main rod is movably arranged by being inserted into the straight groove through the sliding straight groove. The inner groove is formed through both sides of the main rod. The main rod is made of soft rubber material. A pull rod can be externally inserted into the docking slot, and the sliding straight groove on the main rod can be limitedly slid on the support block.

[0017] In a preferred embodiment, the side blocks are arranged in pairs, and a short rod is fixedly installed on one side of the back of each pair of side blocks. The short rod is rotatably inserted into the main body assembly. The length of the adjusting screw is equal to the length of the side block in the installation direction of the side block where it is installed. An annular groove is formed in the middle of the adjusting screw. The gear and the placing rod are fixedly connected, and the rack is meshed with the gear.

[0018] In a preferred embodiment, two threads with opposite directions are arranged at both ends of the annular groove on the adjusting screw. The end blocks are arranged in pairs on each gear and are correspondingly installed in the areas where the threads with opposite directions are located on both sides. The length between the top end of the support block and the uppermost tray is greater than the overall height of the placing assembly.

[0019] The present invention has the following beneficial effects:

[0020] 1. In this sweet potato seed potato storage box, a plurality of vertically arranged and extractable main body assemblies are arranged inside the outer box body. When it is necessary to regularly check the storage state of sweet potatoes in the storage box, the handle can be externally pulled and inserted into the top end of the main body assembly, and then the main body assembly and the placing assembly mounted thereon can be extracted in the vertical direction. Moreover, it can be slid out along the support block for observation. In this way, the sweet potatoes in the storage box can be divided into multiple vertical separate modules and extracted. In this way, when checking, it is not necessary for all sweet potatoes to be exposed to the current air environment for a long time, ensuring the storage effect of the storage box on sweet potatoes.

[0021] 2. The sweet potato seed potato storage box is provided with a placing component, and the sweet potatoes are placed separately on the placing component. A pair of placing rods are arranged on each placing component, and a tray is arranged above. In this way, the sweet potatoes can be placed horizontally between the two placing rods. This not only ensures that each sweet potato does not come into contact with each other, preventing the tissue of other diseased and rotten sweet potatoes from falling and affecting other sweet potatoes, avoiding the occurrence of transmissive infection and ensuring the storage effect of sweet potatoes. At the same time, the rack and gear are used in combination. The rack reciprocates under the drive of the external driving component, which can drive the gear to rotate, and then drive a pair of placing rods to rotate in the same direction. In this way, the sweet potatoes above can rotate continuously and reciprocally, which can ensure the comprehensive control of temperature and humidity of sweet potatoes and further improve the storage effect of sweet potatoes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the first three-dimensional structure schematic diagram of the present invention;

[0023] Figure 2 is the second three-dimensional structure schematic diagram of the present invention;

[0024] Figure 3 is the three-dimensional structure schematic diagram of the present invention with the top cover removed;

[0025] Figure 4 is the present invention Figure 1 the enlarged structure schematic diagram at A in;

[0026] Figure 5 is the present invention Figure 3 the enlarged structure schematic diagram at B in;

[0027] Figure 6 is the partial three-dimensional structure schematic diagram of the present invention;

[0028] Figure 7 is the present invention Figure 6 the enlarged structure schematic diagram at C in;

[0029] Figure 8 is the internal partial three-dimensional structure schematic diagram of the present invention;

[0030] Figure 9 is the present invention Figure 8 the enlarged structure schematic diagram at D in;

[0031] Figure 10 is the three-dimensional structure schematic diagram of the connection of the positioning straight rod, the main body component and the placing component of the present invention;

[0032] Figure 11 is the three-dimensional structure schematic diagram of the placing component of the present invention;

[0033] Figure 12 is the partial three-dimensional structure schematic diagram of the placing component of the present invention.

[0034] In the figure: 1. Outer box body; 2. Top cover; 3. Outer drive assembly; 31. Base body; 32. Outer drive motor; 33. Outer drive screw; 34. Push plate; 35. Positioning plate; 4. Positioning and guiding assembly; 41. Horizontal base; 42. Positioning block; 5. Support block; 6. Extended support assembly; 61. Extension plate; 62. Locking hook; 63. Docking rod; 7. Straight groove; 8. Positioning straight rod; 9. Main body assembly; 91. Main rod; 92. Inner groove; 93. Opposing slot; 10. Placing assembly; 101. Edge block; 102. Positioning groove; 103. Adjusting screw; 104. End block; 105. Gear; 106. Placing rod; 107. Tray; 11. Rack. Specific implementation mode

[0035] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. In addition, the forms of each structure described in the following implementation modes are only examples, and the sweet potato seed potato storage box related to the present invention is not limited to the structures described in the following implementation modes. All other implementation modes obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0036] Please refer to Figures 1 - 8 , a sweet potato seed potato storage box, including an outer box body 1, a top cover 2 is installed at the top end of the outer box body 1, an outer drive assembly 3 is fixedly installed at one end of the outer box body 1, a positioning and guiding assembly 4 is fixedly installed at one end of the outer box body 1, a support block 5 is fixedly installed at the top end of the outer box body 1, an extended support assembly 6 is movably installed at the other end of the outer box body 1, a straight groove 7 is opened inside the outer box body 1, a positioning straight rod 8 is fixedly installed inside the outer box body 1, a main body assembly 9 is movably installed inside the positioning straight rod 8, a placing assembly 10 is movably installed on the side of the main body assembly 9, and a rack 11 is movably inserted inside the outer box body 1;

[0037] Compared with the prior art, in the present application, a plurality of vertically arranged and extractable main components 9 are provided inside the outer box body 1. In this way, when it is necessary to regularly check the storage state of sweet potatoes in the storage box, the handle can be pulled externally and inserted into the top end of the main component 9, and then the main component 9 and the placement component 10 installed thereon can be extracted in the vertical direction and can be slid out along the support block 5 for observation. In this way, the sweet potatoes in the storage box can be divided into multiple vertical separate modules and extracted. In this way, when checking, it is not necessary for all sweet potatoes to be exposed to the current air environment for a long time, ensuring the storage effect of the storage box on sweet potatoes. At the same time, by providing a placement component 10, the sweet potatoes are placed separately on the placement component 10, and a pair of placement rods 106 are provided on each placement component 10 and a tray 107 is provided above. In this way, the sweet potatoes can be placed horizontally between the two placement rods 106. In this way, not only can each sweet potato not contact each other, but also the tissues of other diseased and rotten sweet potatoes will not fall off and affect other sweet potatoes, avoiding the occurrence of transmissive infection and ensuring the storage effect of sweet potatoes. At the same time, the rack 11 and the gear 105 are adapted to be used. The rack 11 reciprocates under the drive of the external drive component 3, which can drive the gear 105 to rotate, and then drive a pair of placement rods 106 to rotate in the same direction. In this way, the sweet potatoes above can rotate continuously and reciprocally, which can ensure the comprehensive control of temperature and humidity of sweet potatoes and further improve the storage effect of sweet potatoes.

[0038] Please refer to Figures 3 - 6 , a sweet potato seed storage box, including a support block 5. The support blocks 5 are evenly arranged on both sides of the top end of the outer box body 1. The two sides of the top end of the support block 5 are rounded structures. The support block 5 is fixedly installed in the middle between each adjacent straight groove 7. The support block 5 is arranged collinearly with the extended support component 6;

[0039] In this embodiment, it should be noted that when it is necessary to pull out the placement component 10 and the sweet potatoes thereon for inspection, the main component 9 can be used to slide horizontally on the support block 5 to stably support and pull out the placement component 10 for observation, which will not affect the normal storage environment of the remaining sweet potatoes. Moreover, this method can also facilitate the timely picking out of the rotten and diseased sweet potatoes, ensuring the storage environment inside the entire storage box and thus ensuring the storage effect.

[0040] Please refer to Figures 3 - 8 , a sweet potato seed storage box, including positioning straight rods 8. The positioning straight rods 8 are arranged in pairs and symmetrically fixedly installed on both sides of each straight groove 7. The top height of the positioning straight rods 8 does not exceed the height of the top end of the main component 9. The placement component 10 is movably clamped on the positioning straight rods 8. The rack 11 is of a multi-section structure and each section is arranged to be rotatable unidirectionally upward. At the same time, permanent magnets are provided at the ends of adjacent two sections for adsorption connection;

[0041] In this embodiment, it should be noted that the positioning straight rod 8 can be used to limit the placement component 10 when it is arranged in the vertical direction, avoiding the situation that the placement component 10 shakes due to external forces when storing sweet potatoes in the outer box body 1, and ensuring the stability of the sweet potatoes placed on the placement component 10.

[0042] Please refer to Figure 3 、 Figure 4 and Figure 9 , a sweet potato seed storage box, including an external drive component 3. The external drive component 3 includes a base body 31. An external drive motor 32 is fixedly installed inside the base body 31. An external drive screw 33 is fixedly installed on the output shaft of the external drive motor 32. A push plate 34 is movably installed on the external drive screw 33. A positioning plate 35 is movably connected to the push plate 34 by embedding.

[0043] In this embodiment, it should be noted that the external drive motor 32 is arranged on the side of the outer box body 1. The external drive motor 32 periodically switches between forward and reverse drives. The length of the extension of the external drive screw 33 is greater than the length of the positioning and guiding component 4. The push plate 34 is in a T shape. The push plate 34 can be detachably fixedly installed on the rack 11 by bolts. The push plate 34 is arranged below the positioning and guiding component 4. The positioning plate 35 is fixedly installed on the side of the outer box body 1. In this way, the external drive motor 32 can be used to drive the external drive screw 33 to rotate, which can drive the push plate 34 to move horizontally. When moving, the rack 11 can be horizontally pulled. When the rack 11 moves, the sweet potatoes on it can be driven to rotate continuously through the structure on the placement component 10, so as to ensure that the air around the sweet potatoes can flow evenly and effectively, so as to ensure the storage effect of the sweet potatoes.

[0044] Please refer to Figures 2 - 4 , a sweet potato seed storage box, including a positioning and guiding component 4. The positioning and guiding component 4 includes a cross base 41. A positioning block 42 is movably installed inside the cross base 41.

[0045] In this embodiment, it should be noted that the cross base 41 has a U-shaped structure and is internally provided with a horizontal channel. The positioning block 42 is slidably arranged in the horizontal channel, and through sockets are opened at the upper and lower ends of the positioning block 42. The size of the socket is the same as the cross-sectional size of the rack 11. The length of the cross base 41 is greater than the length of a single section of the rack 11. In this way, when it is necessary to pull out a longitudinal main component 9 to check the sweet potatoes placed on the placement component 10 thereon, the rack 11 can be pulled out, and then one end can be inserted into the positioning block 42. By using the operation that the positioning block 42 can be slidably arranged in the cross base 41 and the rack 11 can also move up and down in the positioning block 42, the operation of pulling out the rack 11 section by section can be realized, thereby avoiding occupying too much horizontal space when the device is used, and reflecting the practicability of the storage box.

[0046] Please refer toFigures 2 - 5 A sweet potato seed potato storage box includes an extension support assembly 6. The extension support assembly 6 includes an extension plate 61 and a locking hook 62. One end of the extension plate 61 is fixedly installed with a docking rod 63, and the locking hook 62 is movably installed inside the support block 5.

[0047] In this embodiment, it should be noted that the extension plate 61 is rotatably installed on one side of the outer box body 1, and the rotating shaft is arranged on one side of the end of the extension plate 61. The locking hook 62 is rotatably installed by being embedded inside the support block 5 closest to it. The length of the docking rod 63 is equal to the distance between the extension plate 61 after rotating 90 degrees and the support block 5. And a notch is opened on the upper surface of the docking rod 63 after rotating 90 degrees, and the locking hook 62 can be rotatably inserted into the notch. In this way, when the length of the main body assembly 9 is set to be greater than half of the transverse length of the outer box body 1, when pulling out the middle main body assembly 9, it can be rotated towards the side where the extension plate 61 is provided. In this way, the extension support assembly 6 can be used to ensure that the pulled-out main body assembly 9 has stable support to replace the function of the support block 5.

[0048] Please refer to Figures 1 - 8 A sweet potato seed potato storage box includes a main body assembly 9. The main body assembly 9 includes a main rod 91. An inner groove 92 is opened on the main rod 91, a docking slot 93 is opened at the top of the main rod 91, and a sliding straight groove is opened on the main rod 91.

[0049] In this embodiment, it should be noted that the main rod 91 is movably arranged by being inserted into the straight groove 7 through the sliding straight groove. The inner groove 92 is opened through both sides of the main rod 91. The main rod 91 is made of soft rubber material. A pull rod can be externally inserted into the docking slot 93. The sliding straight groove on the main rod 91 can be limited and slid on the support block 5. In this way, when it is necessary to pull out the main rod 91 to check the state of the sweet potatoes placed on the placing assembly 10 thereon, the sliding straight groove on the main rod 91 is bent onto the support block 5 for limited sliding after being pulled out from the straight groove 7, so as to form effective support for the pulled-out main rod 91 to ensure the stability of the placing assembly 10, and further ensure that the sweet potatoes can be effectively viewed while avoiding the situation of the sweet potatoes shaking.

[0050] Please refer to Figures 3 - 12 A sweet potato seed potato storage box includes a placing assembly 10. The placing assembly 10 includes side blocks 101. A positioning groove 102 is opened on the side surface of the side blocks 101. An adjusting screw 103 is movably installed below the inside of the side blocks 101. An end block 104 is movably sleeved on the adjusting screw 103. A gear 105 and a placing rod 106 are respectively movably connected to the end block 104. A tray 107 is inserted and installed at the top of the side blocks 101.

[0051] In this embodiment, it should be noted that the side blocks 101 are arranged in pairs, and a short rod is fixedly installed on one side of the back surface of each pair of side blocks 101. The short rod is rotatably inserted into the main body assembly 9. The length of the adjusting screw rod 103 is equal to the length of the side block 101 itself in the installation direction in the side block 101. An annular groove is provided in the middle of the adjusting screw rod 103. The gear 105 and the placing rod 106 are fixedly connected. The rack 11 is engaged with the gear 105. Two threads in opposite directions are provided at both ends of the adjusting screw rod 103 located in the annular groove. The end blocks 104 are arranged in pairs on each gear 105 and are correspondingly installed in the areas where the threads in opposite directions are located on both sides. The length between the top end of the support block 5 and the uppermost tray 107 is greater than the overall height of the placing assembly 10. In this way, when the main body assembly 9 is pulled out and rotated to the horizontal direction, the self-weight of the placing assembly 10 can be used to always keep the placing rod 106 vertical, which is convenient for effectively inspecting sweet potatoes. When inserted into the outer box body 1, inserting the positioning straight rod 8 into the positioning groove 102 can ensure the stability of the overall placing assembly 10 inside the outer box body 1. The adjusting screw rod 103 can rotate according to the size of the sweet potato to adjust the position of the end block 104, so as to ensure that this structure can adapt to the storage of sweet potatoes of different sizes. During storage, the sweet potatoes placed on the placing rod 106 can also be driven to rotate by the horizontal movement of the rack 11, thereby driving the rotation of the gear 105, so as to ensure the effective control of the overall temperature and humidity of the sweet potatoes, and further ensure the storage effect of the sweet potatoes.

[0052] Working principle: Rotate the adjusting screw rod 103 according to the size of the sweet potato, and then adjust the distance between the two end blocks 104, so as to adjust the distance between the two placing rods 106. Then place the sweet potato between the two placing rods 106. Then carry the placing assembly 10 with the main body assembly 9 and insert it into the outer box body 1 from the straight groove 7. When inserting, ensure that the positioning groove 102 is inserted into the positioning straight rod 8. The sweet potatoes are arranged in layers and separated inside the outer box body 1. Start the external drive motor 32. The external drive motor 32 drives the external drive screw rod 33 to rotate, and then drives the push plate 34 to move horizontally. The push plate 34 will pull the rack 11 to move horizontally, and then drive the gear 105 to rotate. The rotation of the two gears 105 will drive the placing rod 106 to rotate, and then drive the sweet potato on it to rotate. When it is necessary to pull out for inspection, the extension plate 61 can be rotated, and after rotating 90 degrees, the locking hook 62 can be rotated and inserted into the docking rod 63 to form an extension to ensure the effective support for pulling out the main body assembly 9 in the middle.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sweet potato seed potato storage box, comprising an outer box body (1), characterized in that: A top cover (2) is installed at the top end of the outer box body (1). An external drive assembly (3) is fixedly installed at one end of the outer box body (1). A positioning and guiding assembly (4) is fixedly installed at one end of the outer box body (1). A support block (5) is fixedly installed at the top end of the outer box body (1). An extended support assembly (6) is movably installed at the other end of the outer box body (1). A straight groove (7) is formed inside the outer box body (1). A positioning straight rod (8) is fixedly installed inside the outer box body (1). A main body assembly (9) is movably installed inside the positioning straight rod (8). A placement assembly (10) is movably installed on the side of the main body assembly (9). A rack (11) is movably inserted into the outer box body (1). The external drive assembly (3) includes a base body (31). An external drive motor (32) is fixedly installed by embedding inside the base body (31). An external drive screw rod (33) is fixedly installed on the output shaft of the external drive motor (32). A push plate (34) is movably installed on the external drive screw rod (33). A positioning plate (35) is movably connected by embedding on the push plate (34). The positioning and guiding assembly (4) includes a horizontal base (41). A positioning block (42) is movably installed inside the horizontal base (41). The extended support assembly (6) includes an extension plate (61) and a locking hook (62). A docking rod (63) is fixedly installed at one end of the extension plate (61). The locking hook (62) is movably installed inside the support block (5). The main body assembly (9) includes a main rod (91). An inner groove (92) is formed on the main rod (91). A mating slot (93) is formed at the top end of the main rod (91). A sliding straight groove is formed on the main rod (91). The placement assembly (10) includes a side block (101). A positioning groove (102) is formed on the side of the side block (101). An adjusting screw rod (103) is movably installed below the inside of the side block (101). An end block (104) is movably sleeved on the adjusting screw rod (103). A gear (105) and a placement rod (106) are respectively movably connected to the end block (104). A tray (107) is inserted and installed at the top end of the side block (101). The positioning straight rods (8) are arranged in pairs and symmetrically and fixedly installed on both sides of each straight groove (7). The top height of the positioning straight rods (8) does not exceed the height of the top of the main body assembly (9). The placing assembly (10) is movably clamped on the positioning straight rods (8). The rack (11) is of a multi-section structure and each section is arranged to be rotatable upward unidirectionally. At the same time, permanent magnets are arranged at the ends of adjacent two sections for adsorption connection. The extension plate (61) is rotatably installed on one side of the outer box body (1), and the rotating shaft is arranged on one side of the end of the extension plate (61). The locking hook (62) is rotatably installed by being embedded in the nearest support block (5). The length of the docking rod (63) is equal to the distance between the extension plate (61) after rotating 90 degrees and the support block (5). A notch is formed in the upper surface of the docking rod (63) after rotating 90 degrees. The locking hook (62) can be rotatably inserted into the notch.

2. The sweet potato seed tuber storage box according to claim 1, characterized in that: The support blocks (5) are evenly arranged on both sides of the top of the outer box body (1). The two sides of the top of the support block (5) are of rounded corner structures. The support block (5) is fixedly installed in the middle between each adjacent straight groove (7). The support block (5) and the extension support assembly (6) are arranged collinearly.

3. The sweet potato seed tuber storage box according to claim 1, characterized in that: The external drive motor (32) is arranged on the side of the outer box body (1). The external drive motor (32) drives periodically in forward and reverse directions. The extended length of the external drive screw rod (33) is greater than the length of the positioning and guiding assembly (4). The push plate (34) is in a T shape. The rack (11) can be detachably and fixedly installed on the push plate (34) through bolts. The push plate (34) is arranged below the positioning and guiding assembly (4). The positioning plate (35) is fixedly installed on the side of the outer box body (1).

4. A sweet potato seed tuber storage box according to claim 1, characterized in that: The cross base (41) is of a U-shaped structure and a transverse channel is formed inside. The positioning block (42) is slidably arranged in the transverse channel. Through sockets are formed at the upper and lower ends of the positioning block (42). The size of the sockets is the same as the cross-sectional size of the rack (11). The length of the cross base (41) is greater than the length of a single section of the rack (11).

5. A sweet potato seed tuber storage box according to claim 1, characterized in that: The main rod (91) is movably arranged by being inserted into the straight groove (7) through the sliding straight groove. The inner groove (92) is formed through both sides of the main rod (91). The main rod (91) is made of soft rubber material. A pull rod can be externally inserted into the docking slot (93). The sliding straight groove on the main rod (91) can be limited and slidably arranged on the support block (5).

6. The sweet potato seed tuber storage box according to claim 1, characterized in that: The side blocks (101) are arranged in pairs. A short rod is fixedly installed on one side of the back of each pair of side blocks (101). The short rod is rotatably inserted into the main body assembly (9). The length of the adjusting screw rod (103) is equal to the length of the side block (101) in the installation direction of the side block (101) itself. An annular groove is formed in the middle of the adjusting screw rod (103). The gear (105) and the placing rod (106) are fixedly connected. The rack (11) is meshed with the gear (105).

7. The sweet potato seed tuber storage box according to claim 6, characterized in that: Two threads with opposite directions are provided at both ends of the annular groove on the adjusting screw (103). The end blocks (104) are arranged in pairs on each gear (105) and are correspondingly installed in the regions where the threads with opposite directions are located on both sides. The length between the top end of the support block (5) and the uppermost tray (107) is greater than the overall height of the placing assembly (10).

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