Storage rack

Abstract

The utility model discloses a storage rack which comprises a rack body and a plurality of storage trays, a first annular conveying mechanism, a second annular conveying mechanism and a third annular conveying mechanism are arranged on the rack body, and a synchronous transmission mechanism is arranged between the first annular conveying mechanism and the second annular conveying mechanism. The third annular conveying mechanism is in transmission connection with the synchronous transmission mechanism; a first rotating shaft and a second rotating shaft are fixedly arranged at the two ends of the storage tray correspondingly, the first rotating shaft is rotationally connected with the first annular conveying mechanism, and the second rotating shaft is rotationally connected with the second annular conveying mechanism; an angle restraining piece is connected between the first rotating shaft or the second rotating shaft and the third annular conveying mechanism. According to the utility model, circular conveying and display of articles in the vertical direction are realized, the stability is high, the display effect is good, the articles are convenient to take, the occupied space in the horizontal direction is small, and the space utilization rate can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of storage, and in particular relates to a storage rack. Background Art

[0002] With the continuous development of society, people's living standards are constantly improving, and storage racks for storing items such as wine and shoes are gradually appearing in different families. In people's pursuit of quality and personalization of life, storage racks are used more and more widely in different scenarios and have become a kind of decoration. At present, the storage trays of storage racks for wine, shoes and other items are usually designed to be fixed, the overall structure is relatively simple, the function is relatively single, and the items are inconvenient to take. The display effect of the items is poor and it is difficult to meet people's needs. Utility Model Content

[0003] The purpose of the utility model is to provide a storage rack to solve the above problems existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a storage rack, comprising a frame body and a plurality of storage trays, the frame body is provided with a first ring conveying mechanism, a second ring conveying mechanism and a third ring conveying mechanism, a synchronous transmission mechanism is provided between the first ring conveying mechanism and the second ring conveying mechanism, and the third ring conveying mechanism is transmission-connected with the synchronous transmission mechanism; the storage tray is arranged between the first ring conveying mechanism and the second ring conveying mechanism, and a first rotating shaft and a second rotating shaft are fixedly provided at both ends of the storage tray, respectively, the first rotating shaft is rotationally connected with the first ring conveying mechanism, and the second rotating shaft is rotationally connected with the second ring conveying mechanism; an angle constraint is connected between the first rotating shaft or the second rotating shaft and the third ring conveying mechanism, and the angle constraint is used to constrain the angle between the storage tray and the horizontal line to remain unchanged during the conveying process.

[0005] As an optional implementation of the above technical solution, the angle constraint member includes a constraint plate and a constraint shaft, one end of the constraint plate is rotatably connected to the first rotating shaft or the second rotating shaft, the other end of the constraint plate is provided with a limiting slide groove, one end of the constraint shaft is slidably matched with the limiting slide groove, and the other end of the constraint shaft is rotatably connected to the third annular conveying mechanism; the first rotating shaft, the constraint plate and the constraint shaft are connected in a Z-shaped structure, or the second rotating shaft, the constraint plate and the constraint shaft are connected in a Z-shaped structure.

[0006] As an optional implementation of the above technical solution, the first annular conveying mechanism includes a first annular conveying chain belt assembly, a first conveying seat and a first annular guide rail, the first annular guide rail is arranged on one side of the first annular conveying chain belt assembly, the first conveying seat is installed on the first annular conveying chain belt assembly and slidingly cooperates with the first annular guide rail, and the first rotating shaft is rotatably connected to the first conveying seat.

[0007] As an optional implementation of the above technical solution, the first endless conveyor chain belt assembly includes a first endless chain belt, a first driving sprocket and a first driven sprocket, the first driving sprocket and the first driven sprocket are both engaged with the first endless chain belt, the first driving sprocket is connected to a synchronous transmission mechanism, and the first conveying seat is arranged on the first endless chain belt.

[0008] As an optional implementation of the above technical solution, the first conveying seat is provided with a first pulley A and a first pulley B, and the first pulley A and the first pulley B are respectively arranged on both sides of the first annular guide rail and slidingly cooperate with the first annular guide rail.

[0009] As an optional implementation of the above technical solution, the second annular conveying mechanism includes a second annular conveying chain assembly, a second conveying seat and a second annular guide rail, the second annular guide rail is arranged on one side of the second annular conveying chain assembly, the second conveying seat is installed on the second annular conveying chain assembly and slidingly cooperates with the second annular guide rail, and the second rotating shaft is rotatably connected to the second conveying seat.

[0010] As an optional implementation of the above technical solution, the second endless conveyor chain belt assembly includes a second endless chain belt, a second driving sprocket and a second driven sprocket, the second driving sprocket and the second driven sprocket are both engaged with the second endless chain belt, the second driving sprocket is connected to the synchronous transmission mechanism, and the second conveying seat is arranged on the second endless chain belt.

[0011] As an optional implementation of the above technical solution, the second conveying seat is provided with a second pulley A and a second pulley B, and the second pulley A and the second pulley B are respectively arranged on both sides of the second annular guide rail and slidably cooperate with the second annular guide rail.

[0012] As an optional implementation of the above technical solution, the third annular conveying mechanism includes a third annular conveying chain belt assembly, a third conveying seat and a third annular guide rail, the third annular guide rail is arranged on one side of the third annular conveying chain belt assembly, the third conveying seat is installed on the third annular conveying chain belt assembly and slidingly cooperates with the third annular guide rail, and the constraint shaft is rotatably connected to the third conveying seat.

[0013] As an optional implementation of the above technical solution, the third endless conveyor chain belt assembly includes a third endless chain belt, a third driving sprocket and a third driven sprocket, the third driving sprocket and the third driven sprocket are both engaged with the third endless chain belt, the third driving sprocket is connected to the synchronous transmission mechanism, and the third conveying seat is arranged on the third endless chain belt.

[0014] As an optional implementation of the above technical solution, the third conveying seat is provided with a third pulley A and a third pulley B, and the third pulley A and the third pulley B are respectively arranged on both sides of the third annular guide rail and slidably cooperate with the third annular guide rail.

[0015] As an optional implementation of the above technical solution, the synchronous transmission mechanism includes a first sprocket assembly, a synchronous shaft, a second sprocket assembly and a synchronous gear assembly, the two ends of the synchronous shaft are respectively connected to the first sprocket assembly and the second sprocket assembly, a transmission shaft is provided between the second sprocket assembly and the second annular conveying mechanism, and the second sprocket group is connected to the third annular conveying mechanism through the synchronous gear assembly.

[0016] As an optional implementation of the above technical solution, a driving motor is provided on the frame, and an output end of the driving motor is connected to the second sprocket assembly.

[0017] As an optional implementation of the above technical solution, the frame includes a base, a left side panel, a right side panel, a rear side panel and a top panel, the bottoms of the left side panel, the right side panel and the rear side panel are all connected to the base, the tops of the left side panel, the right side panel and the rear side panel are all connected to the top panel, the two sides of the rear side panel are respectively connected to the left side panel and the right side panel, the first ring-shaped conveying mechanism is arranged near the left side panel, and the second ring-shaped conveying mechanism and the third ring-shaped conveying mechanism are both arranged near the right side panel.

[0018] The beneficial effects of the utility model are:

[0019] The utility model provides a storage rack, wherein a first annular conveying mechanism and a second annular conveying mechanism are respectively arranged on both sides of a storage tray, the first annular conveying mechanism and the second annular conveying mechanism simultaneously carry the storage tray to circulate up and down, and the third annular conveying mechanism constrains the rotation angle of the storage tray through an angle constraint, so that the angle between the storage tray and the horizontal line remains unchanged during the up and down cyclic conveying process, ensuring that the items on the storage tray will not fall. The utility model realizes the cyclic conveying and display of items in the vertical direction, and has the characteristics of high stability, good display effect, and convenient item picking, and the horizontal space occupancy is small, which can effectively improve the space utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a storage rack in one embodiment of the utility model;

[0021] Figure 2 This is an exploded view of a storage rack in one embodiment of the utility model;

[0022] Figure 3It is a structural schematic diagram of a first annular conveying mechanism, a second annular conveying mechanism, a third annular conveying mechanism and a synchronous transmission mechanism in one embodiment of the utility model;

[0023] Figure 4 This is a perspective structural diagram of the first annular conveying mechanism in one embodiment of the utility model;

[0024] Figure 5 This is another perspective structural schematic diagram of the first annular conveying mechanism in one embodiment of the utility model;

[0025] Figure 6 This is a perspective structural schematic diagram of the second annular conveying mechanism in one embodiment of the utility model;

[0026] Figure 7 This is another perspective structural schematic diagram of the second annular conveying mechanism in one embodiment of the utility model;

[0027] Figure 8 This is a perspective structural schematic diagram of the third annular conveying mechanism in one embodiment of the utility model;

[0028] Fig. 9 This is a schematic structural diagram of another perspective of the third annular conveying mechanism in one embodiment of the utility model;

[0029] Fig.10 It is a structural schematic diagram of an angle constraint member in one embodiment of the utility model.

[0030] In the figure: 1-frame; 2-storage tray; 3-first annular conveying mechanism; 4-second annular conveying mechanism; 5-third annular conveying mechanism; 6-synchronous transmission mechanism; 7-angle restraining member; 8-driving motor;

[0031] 21-first rotating shaft; 22-second rotating shaft;

[0032] 31-first conveying seat; 32-first annular guide rail; 33-first annular chain belt; 34-first driving sprocket; 35-first driven sprocket; 36-first pulley A; 37-first pulley B;

[0033] 41-second conveying seat; 42-second annular guide rail; 43-second annular chain belt; 44-second driving sprocket; 45-second driven sprocket; 46-second pulley A; 47-second pulley B;

[0034] 51-third conveying seat; 52-third annular guide rail; 53-third annular chain belt; 54-third driving sprocket; 55-third driven sprocket; 56-third pulley A; 57-third pulley B;

[0035] 61-first sprocket assembly; 62-synchronizing shaft; 63-second sprocket assembly;

[0036] 71-constraint plate; 72-constraint shaft; 73-limiting slide groove. DETAILED DESCRIPTION

[0037] like Figure 1-Figure 10 As shown, this embodiment provides a storage rack that can be used to store wine, shoes, etc. Specifically, the storage rack includes a frame body 1 and a plurality of storage trays 2. The frame body 1 is provided with a first ring conveying mechanism 3, a second ring conveying mechanism 4 and a third ring conveying mechanism 5. The first ring conveying mechanism 3 and the second ring conveying mechanism 4 are arranged opposite to each other. The first ring conveying mechanism 3 and the second ring conveying mechanism 4 adopt the same structure. The third ring conveying mechanism 5 is arranged near the first ring conveying mechanism 3 or the second ring conveying mechanism 4. A synchronous transmission mechanism 6 is provided between the first ring conveying mechanism 3 and the second ring conveying mechanism 4. The third ring conveying mechanism 5 is transmission-connected with the synchronous transmission mechanism 6. The first ring conveying mechanism 3, the second ring conveying mechanism 4 and the third ring conveying mechanism 5 can be driven to move together at the same time through the synchronous transmission mechanism 6.

[0038] like Figure 1 and Figure 2 As shown, the storage tray 2 is arranged between the first annular conveying mechanism 3 and the second annular conveying mechanism 4, and the first rotating shaft 21 and the second rotating shaft 22 are fixedly provided at both ends of the storage tray 2, respectively. The first rotating shaft 21 is rotatably connected to the first annular conveying mechanism 3, and the second rotating shaft 22 is rotatably connected to the second annular conveying mechanism 4. An angle constraint 7 is connected between the first rotating shaft 21 or the second rotating shaft 22 and the third annular conveying mechanism 5, and the angle constraint 7 is used to constrain the angle between the storage tray 2 and the horizontal line to remain unchanged during the conveying process. Preferably, the storage tray 2 is arranged in an inclined shape to facilitate the picking up of items. The first annular conveying mechanism 3 and the second annular conveying mechanism 4 are respectively arranged on both sides of the storage tray 2, and the first annular conveying mechanism 3 and the second annular conveying mechanism 4 simultaneously carry the storage tray 2 up and down in a circular motion, and the third annular conveying mechanism 5 constrains the rotation angle of the storage tray 2 through the angle constraint 7, so that the angle between the storage tray 2 and the horizontal line remains unchanged during the up and down circular conveying process, ensuring that the items on the storage tray 2 will not fall.

[0039] The utility model realizes the circular transportation and display of articles in the vertical direction, has the characteristics of high stability, good display effect, and convenient article taking, and occupies little space in the horizontal direction, which can effectively improve the space utilization rate.

[0040] The frame 1 includes a base, a left side plate, a right side plate, a rear side plate and a top plate. The bottoms of the left side plate, the right side plate and the rear side plate are connected to the base, the tops of the left side plate, the right side plate and the rear side plate are connected to the top plate, and the two sides of the rear side plate are connected to the left side plate and the right side plate respectively. The first ring conveying mechanism 3 is arranged near the left side plate, and the second ring conveying mechanism 4 and the third ring conveying mechanism 5 are arranged near the right side plate. In order to increase the storage capacity of the storage rack, the storage rack has a plurality of storage trays 2, and the plurality of storage trays 2 are arranged at intervals.

[0041] like Figure 3 and Fig.10 As shown, in this embodiment, the angle constraint member 7 includes a constraint plate 71 and a constraint shaft 72, one end of the constraint plate 71 is rotatably connected to the first rotating shaft 21 or the second rotating shaft 22, the other end of the constraint plate 71 is provided with a limiting slide groove 73, one end of the constraint shaft 72 is slidably matched with the limiting slide groove 73, and the other end of the constraint shaft 72 is rotatably connected to the third annular conveying mechanism 5; the first rotating shaft 21, the constraint plate 71 and the constraint shaft 72 are connected in a Z-shaped structure, or the second rotating shaft 22, the constraint plate 71 and the constraint shaft 72 are connected in a Z-shaped structure. If the third annular conveying mechanism 5 is set near the first annular conveying mechanism 3, the constraint plate 71 is rotatably connected to the first rotating shaft 21. If the third annular conveying mechanism 5 is set near the second annular conveying mechanism 4, the constraint plate 71 is rotatably connected to the second rotating shaft 22.

[0042] Taking the rotational connection between the constraint plate 71 and the second rotating shaft 22 as an example, the second annular conveying mechanism 4 and the third annular conveying mechanism 5 move synchronously, and the first annular conveying mechanism 3 and the second annular conveying mechanism 4 carry the storage tray 2 for up and down circular motion. When the storage tray 2 turns, the storage tray 2 will rotate due to gravity. At this time, the third annular conveying mechanism 5 applies a rotational external force to the second rotating shaft 22 through the constraint plate 71 and the constraint shaft 72. The rotational external force is balanced with the force of the storage tray 2 rotating due to gravity, thereby maintaining the angle between the storage tray 2 and the horizontal line during the conveying process unchanged, such as always keeping it vertical or tilted at 45°. Of course, it can also be other angles to ensure that the items will not fall.

[0043] like Figure 4 and Figure 5As shown, in a specific implementation, the first endless conveying mechanism 3 includes a first endless conveying chain belt assembly, a first conveying seat 31 and a first endless guide rail 32, the first endless guide rail 32 is arranged on one side of the first endless conveying chain belt assembly, the first conveying seat 31 is installed on the first endless conveying chain belt assembly and slidably cooperates with the first endless guide rail 32, and the first rotating shaft 21 is rotatably connected to the first conveying seat 31. The first endless conveying chain belt assembly includes a first endless chain belt 33, a first driving sprocket 34 and a first driven sprocket 35, the first driving sprocket 34 and the first driven sprocket 35 are both meshed with the first endless chain belt 33, the first driving sprocket 34 is connected to the synchronous transmission mechanism 6, and the first conveying seat 31 is arranged on the first endless chain belt 33. In order to improve the conveying stability of the storage tray 2 , the first conveying seat 31 is provided with a first pulley A36 and a first pulley B37 , which are respectively arranged on both sides of the first annular guide rail 32 and slidably cooperate with the first annular guide rail 32 .

[0044] like Figure 6 and Figure 7 As shown, the second annular conveying mechanism 4 adopts the same structure as the first annular conveying mechanism 3. Specifically, the second annular conveying mechanism 4 includes a second annular conveying chain belt assembly, a second conveying seat 41 and a second annular guide rail 42. The second annular guide rail 42 is arranged on one side of the second annular conveying chain belt assembly. The second conveying seat 41 is installed on the second annular conveying chain belt assembly and slides with the second annular guide rail 42. The second rotating shaft 22 is rotatably connected with the second conveying seat 41. The second annular conveying chain belt assembly includes a second annular chain belt 43, a second driving sprocket 44 and a second driven sprocket 45. The second driving sprocket 44 and the second driven sprocket 45 are both meshed with the second annular chain belt 43. The second driving sprocket 44 is connected to the synchronous transmission mechanism 6. The second conveying seat 41 is arranged on the second annular chain belt 43. The second conveying seat 41 is provided with a second pulley A46 and a second pulley B47. The second pulley A46 and the second pulley B47 are respectively arranged on both sides of the second annular guide rail 42 and slide with the second annular guide rail 42. After adopting this design, the operating stability of the storage tray 2 is greatly improved.

[0045] like Figure 8 and Fig. 9As shown, the structure of the third annular conveying mechanism 5 is basically the same as that of the first annular conveying mechanism 3, and its size is different from that of the third annular conveying mechanism 5. Specifically, the third annular conveying mechanism 5 includes a third annular conveying chain belt assembly, a third conveying seat 51 and a third annular guide rail 52, the third annular guide rail 52 is arranged on one side of the third annular conveying chain belt assembly, the third conveying seat 51 is installed on the third annular conveying chain belt assembly and slidably cooperates with the third annular guide rail 52, and the constraint shaft 72 is rotatably connected to the third conveying seat 51. The third annular conveying chain belt assembly includes a third annular chain belt 53, a third driving sprocket 54 and a third driven sprocket 55, the third driving sprocket 54 and the third driven sprocket 55 are both meshed with the third annular chain belt 53, the third driving sprocket 54 is connected to the synchronous transmission mechanism 6, and the third conveying seat 51 is arranged on the third annular chain belt 53. The third conveying seat 51 is provided with a third pulley A56 and a third pulley B57 . The third pulley A56 and the third pulley B57 are respectively arranged on both sides of the third annular guide rail 52 and are slidably matched with the third annular guide rail 52 .

[0046] The synchronous transmission mechanism 6 includes a first sprocket assembly 61, a synchronous shaft 62, a second sprocket assembly 63 and a synchronous gear assembly. The two ends of the synchronous shaft 62 are respectively connected to the first sprocket assembly 61 and the second sprocket assembly 63. A transmission shaft is provided between the second sprocket assembly 63 and the second annular conveying mechanism 4. The second sprocket assembly is connected to the third annular conveying mechanism 5 through the synchronous gear assembly. The first sprocket assembly 61 includes a first chain, a first sprocket A and a first sprocket B. The first sprocket A and the first sprocket B are both meshed with the first chain. The first sprocket A is connected to the synchronous shaft 62. A connecting shaft is provided between the first sprocket B and the first driving sprocket 34. The second sprocket assembly 63 includes a second chain, a second sprocket A and a second sprocket B. The second sprocket A and the second sprocket B are both meshed with the second chain. The second sprocket A is connected to the synchronous shaft 62. A transmission shaft is provided between the second sprocket B and the second driving sprocket 44. The synchronous gear assembly includes a first gear A and a first gear B meshing with each other. The first gear A is coaxially arranged with the second sprocket B, and the first gear B is coaxially arranged with the third driving sprocket 54.

[0047] like Figure 1As shown, in a specific implementation mode, the frame 1 is provided with a driving motor 8, and the output end of the driving motor 8 is connected to the second sprocket assembly 63. The second sprocket A is coaxially provided with a second gear A, and the output shaft of the driving motor 8 is provided with a second gear B, and the second gear B is meshed with the second gear A. The utility model drives the first ring-shaped chain belt 33, the second ring-shaped chain belt 43 and the third ring-shaped chain belt 53 to rotate simultaneously through the driving motor 8, and the first ring-shaped chain belt 33 and the second ring-shaped chain belt 43 carry the storage tray 2 to circulate, and the third ring-shaped chain belt 53 constrains the storage tray 2 through the constraint plate 71 and the constraint shaft 72, so that the angle between the storage tray 2 and the horizontal line remains unchanged during the conveying process.

[0048] In the description of the present utility model, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, and may be fixedly connected, detachably connected, or integrated; may be mechanically connected or electrically connected; may be directly connected or indirectly connected through an intermediate medium, may be the internal connection of two components or the interaction relationship between two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood. In addition, the specific features, structures, etc. described in the embodiments are included in at least one embodiment. In the absence of mutual contradictions, those skilled in the art may combine the features of different embodiments. The scope of protection of the present utility model is not limited to the above-mentioned specific embodiments. According to the basic technical concept of the present utility model, the embodiments that can be associated with by ordinary technicians in this field without creative work all belong to the scope of protection of the present utility model.

Claims

1. A storage rack, characterized in that: The invention comprises a frame (1) and a plurality of storage trays (2), wherein the frame (1) is provided with a first annular conveying mechanism (3), a second annular conveying mechanism (4) and a third annular conveying mechanism (5), wherein a synchronous transmission mechanism (6) is provided between the first annular conveying mechanism (3) and the second annular conveying mechanism (4), and the third annular conveying mechanism (5) is transmission-connected with the synchronous transmission mechanism (6); the storage tray (2) is arranged between the first annular conveying mechanism (3) and the second annular conveying mechanism (4), and a first rotating shaft (21) and a second rotating shaft (22) are respectively fixedly provided at both ends of the storage tray (2), wherein the first rotating shaft (21) is rotationally connected with the first annular conveying mechanism (3), and the second rotating shaft (22) is rotationally connected with the second annular conveying mechanism (4); an angle constraint (7) is connected between the first rotating shaft (21) or the second rotating shaft (22) and the third annular conveying mechanism (5), and the angle constraint (7) is used to constrain the angle between the storage tray (2) and the horizontal line to remain unchanged during the conveying process.

2. The storage rack according to claim 1, characterized in that: The angle constraint member (7) includes a constraint plate (71) and a constraint shaft (72), one end of the constraint plate (71) is rotatably connected to the first rotating shaft (21) or the second rotating shaft (22), the other end of the constraint plate (71) is provided with a limiting slide groove (73), one end of the constraint shaft (72) is slidably matched with the limiting slide groove (73), and the other end of the constraint shaft (72) is rotatably connected to the third annular conveying mechanism (5); the first rotating shaft (21), the constraint plate (71) and the constraint shaft (72) are connected to form a Z-shaped structure, or the second rotating shaft (22), the constraint plate (71) and the constraint shaft (72) are connected to form a Z-shaped structure.

3. The storage rack according to claim 1, characterized in that: The first annular conveying mechanism (3) comprises a first annular conveying chain belt assembly, a first conveying seat (31) and a first annular guide rail (32); the first annular guide rail (32) is arranged on one side of the first annular conveying chain belt assembly; the first conveying seat (31) is installed on the first annular conveying chain belt assembly and slidably cooperates with the first annular guide rail (32); the first rotating shaft (21) is rotatably connected to the first conveying seat (31).

4. The storage rack according to claim 3, characterized in that: The first annular conveying chain belt assembly comprises a first annular chain belt (33), a first driving sprocket (34) and a first driven sprocket (35); the first driving sprocket (34) and the first driven sprocket (35) are meshed with the first annular chain belt (33); the first driving sprocket (34) is connected to a synchronous transmission mechanism (6); the first conveying seat (31) is arranged on the first annular chain belt (33); the first conveying seat (31) is provided with a first pulley A (36) and a first pulley B (37); the first pulley A (36) and the first pulley B (37) are respectively arranged on both sides of the first annular guide rail (32) and are slidably matched with the first annular guide rail (32).

5. The storage rack according to claim 1, characterized in that: The second annular conveying mechanism (4) comprises a second annular conveying chain assembly, a second conveying seat (41) and a second annular guide rail (42); the second annular guide rail (42) is arranged on one side of the second annular conveying chain assembly; the second conveying seat (41) is installed on the second annular conveying chain assembly and slidably cooperates with the second annular guide rail (42); the second rotating shaft (22) is rotatably connected to the second conveying seat (41).

6. The storage rack according to claim 5, characterized in that: The second annular conveying chain belt assembly comprises a second annular chain belt (43), a second driving sprocket (44) and a second driven sprocket (45); the second driving sprocket (44) and the second driven sprocket (45) are meshed with the second annular chain belt (43); the second driving sprocket (44) is connected to a synchronous transmission mechanism (6); the second conveying seat (41) is arranged on the second annular chain belt (43); the second conveying seat (41) is provided with a second pulley A (46) and a second pulley B (47); the second pulley A (46) and the second pulley B (47) are respectively arranged on both sides of the second annular guide rail (42) and are slidably matched with the second annular guide rail (42).

7. The storage rack according to claim 2, characterized in that: The third annular conveying mechanism (5) comprises a third annular conveying chain belt assembly, a third conveying seat (51) and a third annular guide rail (52); the third annular guide rail (52) is arranged on one side of the third annular conveying chain belt assembly; the third conveying seat (51) is mounted on the third annular conveying chain belt assembly and slidingly cooperates with the third annular guide rail (52); the constraint shaft (72) is rotationally connected to the third conveying seat (51).

8. The storage rack according to claim 7, characterized in that: The third annular conveying chain belt assembly comprises a third annular chain belt (53), a third driving sprocket (54) and a third driven sprocket (55); the third driving sprocket (54) and the third driven sprocket (55) are meshed with the third annular chain belt (53); the third driving sprocket (54) is connected to the synchronous transmission mechanism (6); the third conveying seat (51) is arranged on the third annular chain belt (53); the third conveying seat (51) is provided with a third pulley A (56) and a third pulley B (57); the third pulley A (56) and the third pulley B (57) are respectively arranged on both sides of the third annular guide rail (52) and are slidably matched with the third annular guide rail (52).

9. The storage rack according to claim 1, characterized in that: The synchronous transmission mechanism (6) comprises a first sprocket assembly (61), a synchronous shaft (62), a second sprocket assembly (63) and a synchronous gear assembly. The two ends of the synchronous shaft (62) are respectively connected to the first sprocket assembly (61) and the second sprocket assembly (63). A transmission shaft is provided between the second sprocket assembly (63) and the second annular conveying mechanism (4). The second sprocket assembly is connected to the third annular conveying mechanism (5) through the synchronous gear assembly. A driving motor (8) is provided on the frame (1), and the output end of the driving motor (8) is connected to the second sprocket assembly (63).

10. The storage rack according to claim 1, characterized in that: The frame (1) comprises a base, a left side plate, a right side plate, a rear side plate and a top plate, the bottoms of the left side plate, the right side plate and the rear side plate are all connected to the base, the tops of the left side plate, the right side plate and the rear side plate are all connected to the top plate, and the two sides of the rear side plate are respectively connected to the left side plate and the right side plate, the first annular conveying mechanism (3) is arranged at a position close to the left side plate, and the second annular conveying mechanism (4) and the third annular conveying mechanism (5) are both arranged at a position close to the right side plate.

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