A pre-packaged food product categorised shelving apparatus

Abstract

The application discloses a pre-packaged food classified placing shelf device and relates to the technical field of food shelves.The pre-packaged food classified placing shelf device comprises a support frame, the support frame is provided with a rear baffle and a main layer plate, a plurality of groups of liftable auxiliary layer plates are assembled on the main layer plate, the auxiliary layer plates are provided with placing holes and embedded with limiting modules, the limiting modules comprise horn-shaped positioning seats and bottom pocket supporting plates, the rear end of the auxiliary layer plate is provided with an adjusting mechanism composed of guide rails and locking components, two groups of driving blocks are linked through gear meshing, and the driving blocks are matched with springs and locking blocks, so that multi-gear height adjustment and stable locking of the auxiliary layer plate are realized, the traditional direct stacking mode of goods is abandoned, layered independent bearing and placing are realized, the bottom layer goods are constrained from deviation by the positioning seats, the pocket protection is realized by cooperating with the supporting plates, and the stability and safety of glass-filled food, canned goods and stacked storage are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of food shelving technology, and in particular to a pre-packaged food sorting and display shelving device. Background Technology

[0002] In the field of convenience store pre-packaged food shelving technology, in order to make full use of the vertical space of the shelves and increase the storage capacity, the industry usually adopts the method of stacking glass bottled food, metal canned food and other high-center-of-gravity vertically placed goods. However, most existing stacking structures simply place the upper layer of goods on top of the bottle openings of the lower layer, relying entirely on manual visual alignment to achieve stacking and positioning. They lack mechanical limiting and positioning constraint structures, resulting in an extremely low fault tolerance rate. If there is even a slight deviation during manual placement, it will cause half of the upper layer of glass bottle to be suspended in the air and misaligned. In addition, the glass bottle itself has a high center of gravity and a large weight. Under normal operating conditions such as customers picking up and putting down goods, minor bumps to the shelves, and slight unevenness of the ground, the offset upper glass bottles are prone to slipping, falling, and breaking. This not only causes economic losses to the goods, but the broken glass shards can also easily cut operators and customers, contaminate the shelves and surrounding food, and pose a great safety hazard. It cannot simultaneously meet the needs of high space utilization and safe and stable storage of goods. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a pre-packaged food sorting and display shelf device that can solve the above-mentioned technical problem.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a pre-packaged food sorting and display shelf device, including a support frame, wherein the support frame is formed by welding multiple sets of square steel together, a rear baffle is fixedly connected to the rear end of the support frame, a main shelf is fixedly connected to the horizontally arranged square steel of the support frame, and secondary shelves are evenly arranged on the main shelf. Each of the sub-layer plates has a through hole, and a limit module is embedded inside the hole. Each sub-layer plate is equipped with a vertical lifting adjustment mechanism at its rear end.

[0005] Preferably, the adjustment mechanism includes a guide rail and a locking component. The guide rail is fixedly connected to the front end face of the rear baffle, the front end of the locking component is fixedly connected to the sub-layer plate, and the rear end of the locking component is slidably mounted on the guide rail.

[0006] Preferably, the opening edge of each of the card slots is chamfered.

[0007] Preferably, the locking assembly includes a locking block, a first driving block, a gear, a receiving block, and a second driving block. The receiving block consists of a front receiving box and a rear receiving plate with an integral structure. The rear end of the rear receiving plate of the receiving block slides along the vertical direction of the guide rail. The gear is rotatably connected to the rear receiving plate of the receiving block via a rotating shaft. The first driving block and the second driving block are symmetrically assembled inside the front receiving box of the receiving block. The locking blocks are fixedly connected to the left side of the first driving block and the right side of the second driving block, respectively.

[0008] Preferably, the locking assembly further includes a spring and a guide seat. The spring is fixedly connected between the left side of the first driving block and the inner wall of the front receiving box of the receiving block, and between the right side of the second driving block and the inner wall of the front receiving box of the receiving block, respectively. The guide seat is fixedly installed inside the front receiving box of the receiving block.

[0009] Preferably, the two locking blocks are precisely inserted into the slots of the guide rail, and the end faces of the locking blocks facing the slots are chamfered.

[0010] Preferably, the limiting module includes a positioning seat and a tray. The positioning seat is embedded in each placement hole. The positioning seat has a flared structure and the opening of the positioning seat gradually narrows from top to bottom. The tray is set below each placement hole. The tray is composed of a circular plate and a surrounding annular protrusion. Several connecting rods are distributed in a circumferential array on the annular protrusion of the tray, and the upper end of each rod is fixedly connected to the sub-layer plate, which can stably suspend and fix the tray.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. This pre-packaged food sorting and display shelf device, by setting up a vertically adjustable sub-shelf on the main shelf, uses the sub-shelf to realize the independent stacking of upper and lower goods, so that the upper goods are no longer directly stacked on top of the bottle mouths of the lower ones, fundamentally abandoning the traditional storage method that relies entirely on manual stacking.

[0012] 2. This pre-packaged food sorting and display shelf device uses a trumpet-shaped positioning seat embedded in the placement hole of the sub-layer plate to radially limit the bottom layer of goods. Together with the tray suspended below the placement hole, it forms a bottom protection structure, ensuring that the bottom layer of goods are placed upright without deviation and preventing the top layer of goods from being half suspended.

[0013] 3. This pre-packaged food sorting and placement shelf device achieves height adjustment and precise locking through the cooperation of the secondary shelf, rear guide rail, and locking component. The locking component utilizes the gear meshing to link the first and second drive blocks to achieve synchronous opening, closing, and unlocking. Combined with the spring pushing the locking block into the slot, automatic locking is completed. The layer spacing can be flexibly adjusted according to the height of different goods, and it is suitable for stacking and storing glass bottles and cans of various sizes, effectively improving the vertical space utilization of the shelf. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of a pre-packaged food sorting and display shelf device according to the present invention; Figure 2 This is a schematic diagram of the secondary side plate in a pre-packaged food sorting and display shelf device of the present invention; Figure 3 This is a schematic diagram of the locking module in a pre-packaged food sorting and display shelf device of the present invention; Figure 4 For the present invention Figure 2 Enlarged diagram of point A in the middle.

[0015] Reference numerals: 1. Support frame; 2. Rear baffle; 4. Secondary shelf; 5. Main shelf; 6. Positioning seat; 7. Placement hole; 8. Tray; 9. Guide rail; 91. Locking block; 92. First drive block; 93. Spring; 94. Gear; 95. Guide groove; 97. Receiving block; 98. Second drive block; 10. Locking module; 11. Connecting rod. Detailed Implementation

[0016] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0017] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0018] In the description of this invention, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0019] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0020] Please see Figure 1-4 The present invention provides a technical solution: a pre-packaged food sorting and display shelf device, including a support frame 1, the support frame 1 is formed by welding multiple sets of square steel together, the rear end of the support frame 1 is fixedly connected to a rear baffle 2, the rear baffle 2 can block and limit the rear side of the goods to prevent the goods from sliding off the rear side of the shelf and getting stuck in the equipment gap, and at the same time provide a stable mounting base for the subsequent adjustment mechanism. A main shelf 5 is fixedly connected to the horizontally arranged square steel of the support frame 1, and secondary shelves 4 are evenly arranged on the main shelf 5. Each sub-shelf 4 has a through-hole 7, which is a reserved installation position for positioning and placing goods. The placement hole 7 is embedded with a limit module, which can radially limit and constrain the glass bottles and canned goods placed at the bottom, effectively avoiding the problems of the bottom goods shifting, shaking, and misaligning. Each sub-shelf 4 is equipped with a vertical lifting adjustment mechanism at the rear end. The vertical height of the sub-shelf 4 can be freely adjusted through the adjustment mechanism to adapt to the stacking and storage of glass-filled food and metal canned goods of different heights and specifications, greatly improving the space utilization and versatility of the shelf. The adjustment mechanism includes a guide rail 9 and a locking component. The guide rail 9 is fixedly connected to the front end face of the rear baffle 2. The installation position is stable and the force is evenly distributed. It can provide precise vertical guidance for the lifting and lowering adjustment of the sub-shelf 4. The front end of the locking component is fixedly connected to the sub-shelf 4, and the rear end of the locking component is slidably mounted on the guide rail 9. Through the sliding cooperation between the locking component and the guide rail 9, the sub-shelf 4 can be lifted and lowered vertically without jamming. At the same time, the adjustment height can be precisely locked to prevent the sub-shelf 4 from shifting or sliding due to the weight of the goods or external impact. Four guide rails 9 are evenly distributed along the length of the sub-shelf 4. The symmetrical arrangement of the guide rails 9 at multiple points can evenly bear the weight of the sub-shelf 4 and the goods, and prevent tilting and deformation due to unilateral force. Multiple sets of slots 14 are symmetrically opened on the left and right side walls of each guide rail 9. The slots 14 are evenly linearly distributed along the vertical direction of the pallet 8. The multi-position slots can achieve precise positioning of the sub-shelf 4 at multiple heights and adapt to different stacking height requirements. Each slot 14 has a chamfered edge at the opening. The chamfered structure can guide the locking block 91, reduce the difficulty of insertion and locking, and make it easier for staff to quickly align and lock. The locking assembly includes a locking block 91, a first drive block 92, a gear 94, a receiving block 97, and a second drive block 98. The receiving block 97 consists of a front receiving box and a rear receiving plate with an integrated structure. The rear end of the rear receiving plate of the receiving block 97 slides along the vertical direction of the guide rail 9, allowing it to slide stably up and down the guide rail 9. The gear 94 is rotatably connected to the rear receiving plate of the receiving block 97 via a rotating shaft. The first drive block 92 and the second drive block 98 are symmetrically assembled inside the front receiving box of the receiving block 97 and can slide synchronously relative to each other. The locking block 91 is fixedly connected to the left side of the first drive block 92 and the right side of the second drive block 98, respectively, and moves synchronously with the drive blocks to achieve unlocking and locking actions. Locking block 91, first drive block 92 and second drive block 98 are all designed with an L-shaped structure. The L-shaped structure can save assembly space while ensuring connection strength and stress stability. The ends of the first drive block 92 and the second drive block 98 facing the gear 94 are fixedly connected with meshing tooth sets. Through the meshing transmission of the gear 94 and the tooth sets on both sides, the first drive block 92 and the second drive block 98 can be opened and closed synchronously in opposite directions, ensuring that the locking action on both sides is synchronized and the force is balanced. The first drive block 92 and the second drive block 98 can slide smoothly left and right relative to each other inside the front receiving box of the receiving block 97. The sliding stroke is stable and the unlocking and locking switching is smooth. The locking assembly also includes a spring 93 and a guide seat 96. The spring 93 is fixedly connected between the left side of the first drive block 92 and the inner wall of the front receiving box of the receiving block 97, and between the right side of the second drive block 98 and the inner wall of the front receiving box of the receiving block 97. Under normal conditions, the spring 93 is in a stretched state and can continuously provide inward pulling force to the two sets of drive blocks to ensure that the locking block 91 is stably inserted into the slot 14 and prevent accidental disengagement. The guide seat 96 is fixedly installed inside the front receiving box of the receiving block 97 to provide precise guidance for the sliding of the drive block and avoid sliding deviation and jamming. There are two guide seats 96, which correspond one-to-one with the first drive block 92 and the second drive block 98. The front end face of the first drive block 92 and the second drive block 98 are provided with guide grooves 95. The first drive block 92 and the second drive block 98 are slidably assembled in the guide grooves 95 at the corresponding positions. The guide grooves 95 and the guide seats 96 are precisely matched to further limit the sliding trajectory of the drive blocks, prevent shaking and deviation, and ensure stable and smooth opening and closing action. Two locking blocks 91 are precisely inserted into the slots 14 of the guide rail 9 to lock the sub-layer plate 4 at its height. The end faces of the locking blocks 91 facing the slots 14 are chamfered, which cooperates with the chamfered opening of the slots 14 to further improve the ease of alignment and insertion, while reducing wear and extending the service life of the parts. The limiting module includes a positioning seat 6 and a tray 8. The positioning seat 6 is embedded in each placement hole 7. The positioning seat 6 has a flared structure, and the opening of the positioning seat 6 gradually narrows from top to bottom. The structure of being larger at the top and smaller at the bottom facilitates the quick placement of glass bottles and canned food bottles. It can adaptively limit the radial movement of bottle bottoms with different small dimensional deviations, constrain the horizontal shaking and displacement of the bottom layer of goods, and fundamentally prevent the problem of the upper stacked goods being suspended, slipping, or tipping over due to the misalignment of the bottom layer. The tray 8 is set below each placement hole 7. The pallet 8 is composed of a circular plate and a surrounding circular protrusion, which is structurally stable and has a moderate load-bearing area. It can catch fallen goods and debris, preventing the goods from falling directly to the ground and breaking. Several connecting rods 11 are distributed in a circular array on the annular protrusion of the pallet 8. The multiple sets of connecting rods 11 are evenly stressed, and their upper ends are fixedly connected to the sub-layer plate 4, which can stably suspend and fix the pallet 8, ensuring that the pallet 8 is horizontal and stable, does not shake or deform, and continuously plays a bottom protection role.

[0021] Working principle: Workers can vertically place some glass bottles and canned goods directly on the main shelf 5, while placing other goods vertically into the placement holes 7 on the secondary shelf 4. The limiting module embedded in the placement hole 7 can accurately position the bottom layer of goods. The flared positioning seat 6 has a tapered structure that is wider at the top and narrower at the bottom, which not only facilitates the quick insertion of bottles, but also provides adaptive radial limiting for bottle bottoms with different dimensional deviations. This effectively restrains the horizontal offset and swaying of the bottom layer of goods, preventing the upper stacked goods from being suspended, slipping, or tipping over due to misalignment of the bottom layer of goods. In conjunction with the tray 8, which is stably suspended below the placement hole 7 by multiple sets of circumferential array connecting rods 11, it can catch any goods that accidentally slip or fall off the secondary shelf 4, preventing them from falling directly to the ground and causing breakage, thus continuously ensuring the safety of stored goods.

[0022] When the stacking height of the sub-shelf 4 needs to be adjusted according to the height of different glass bottles and cans, the staff can pull the locking blocks 91 on both sides outward. Relying on the sliding cooperation of the guide groove 95 and guide seat 96 at the front end of the first drive block 92 and the second drive block 98, the two sets of drive blocks slide outward smoothly along a precise trajectory. At the same time, the springs 93 on both sides are pulled. Through the meshing transmission of the intermediate gear 94 in the tooth group of the first drive block 92 and the second drive block 98, the two sets of drive blocks are synchronously reversed and retracted, which drives the locking blocks 91 to be synchronously stretched and disengaged from the slots 14 on both sides of the guide rail 9, thus releasing the height locking state of the sub-shelf 4. At this time, the receiving block 97 can slide vertically and smoothly along the four equally spaced guide rails 9. After the height adjustment is completed, the locking block 91 is released, and the spring 93 in the stretched state rebounds elastically, pulling the first drive block 92 and the second drive block 98 to reset inward, driving the end locking block 91 to accurately align and insert into the corresponding height slot 14. The chamfered structure of the slot 14 and the end of the locking block 91 cooperate with each other to quickly guide alignment, reduce insertion wear, and achieve stable locking of the sub-layer plate 4. The multi-point arranged guide rails 9 can evenly bear the weight of the sub-layer plate 4 and the goods, effectively avoiding tilting and deformation due to unilateral force.

[0023] Structural Description: Support Frame 1: Support Frame 1 is formed by welding multiple sets of square steel together. The overall structure is rigid and has high load-bearing capacity. As the main load-bearing base of the entire shelving unit, it is used to support and install all other components, ensuring that the overall shelving is stable and not easily deformed or tilted. It can stably support heavy pre-packaged foods such as glass bottles and canned goods for a long time, providing a reliable foundation support for the layered stacking of goods. Rear baffle 2: The rear baffle 2 is fixedly connected to the rear end of the support frame 1. It can form a closed barrier and limit the rear side of the shelf, effectively preventing pre-packaged food from sliding or falling from the rear side of the shelf. At the same time, it avoids goods getting stuck in the gaps of the equipment, causing jamming when picking up goods or damage to goods. In addition, the flat front surface of the rear baffle 2 can provide a stable mounting base for the guide rail 9 of the subsequent adjustment mechanism, ensuring that the adjustment structure is installed firmly and the force is evenly distributed. Sub-shelf 4: Sub-shelf 4 is evenly arranged above main shelf 5. As a liftable layered support plate, it can work with main shelf 5 to achieve double-layer storage, greatly improving the vertical space utilization of the shelf. At the same time, the vertical shelf height of sub-shelf 4 can be freely adjusted according to the height of different goods, and it is suitable for stacking and storing glass bottles and cans of various heights, solving the problems of fixed shelf height and poor versatility of traditional shelves. Main shelf 5: The main shelf 5 is fixedly installed on the horizontally arranged square steel of the support frame 1. As a fixed base load-bearing plate, it can directly place glass bottles and canned pre-packaged foods vertically to realize basic goods storage. It can also provide a stable installation and load-bearing benchmark for multiple sets of secondary shelves 4 above, distribute the overall goods load, and improve the overall load-bearing stability and layered classification display effect of the shelf. Positioning seat 6: Positioning seat 6 is embedded in the placement hole 7 and adopts a flared opening structure that is wider at the top and narrower at the bottom. The wide opening at the top makes it easy for workers to quickly put glass bottles and cans into the bottom, while the narrow opening at the bottom can form an adaptive radial limit for the bottom of the bottle. This can restrain the horizontal shaking, offset, and misalignment of the bottom layer of goods, and fundamentally prevent the problem of the upper stacked goods being suspended, slipping, tipping, or breaking due to the positioning offset of the bottom layer. It is suitable for positioning various bottles with small dimensional deviations. Placement hole 7: Placement hole 7 is opened through the sub-layer plate 4 to provide a precise embedding and installation position for positioning seat 6. At the same time, it provides preliminary limiting constraints on vertically placed glass bottles and canned goods, limits the placement position of bottom layer goods, ensures that the goods are placed in a regular and orderly manner, provides a precise placement benchmark for stable stacking of upper layer goods, and improves the overall storage stability. Pallet 8: Pallet 8 is located directly below the placement hole 7. It adopts an integrated structure of a circular plate and surrounding circular protrusions. The structure is stable and the bearing area is moderate. It can catch glass bottles and canned goods that accidentally slide or fall from the placement hole 7, preventing the goods from falling directly to the ground and causing breakage. At the same time, it can also catch debris and debris, keep the shelf clean, and continuously play a safety protection role. Guide rail 9: The guide rail 9 is fixed to the front end of the rear baffle 2 and four rails are equidistantly arranged along the length of the sub-layer plate 4. The multi-point symmetrical arrangement structure can evenly bear the weight of the sub-layer plate 4 and the goods, and prevent tilting and deformation due to force on one side. At the same time, the guide rail 9 provides precise guidance for the vertical lifting of the locking component and the sub-layer plate 4, ensuring that the lifting adjustment is smooth and without deviation. In addition, it can be used with multiple sets of slots 14 to realize multi-level height adjustment to adapt to different stacking height requirements. Locking block 91: Locking block 91 adopts an L-shaped structure and is fixed to the outside of the first driving block 92 and the second driving block 98 respectively. The end is provided with a chamfer structure, which can be accurately inserted into the slot 14 of the guide rail 9 to achieve high locking of the sub-layer plate 4. The chamfer structure can quickly guide the alignment, reduce the difficulty of insertion and reduce insertion wear. With the push force of the spring 93, it can achieve stable locking and effectively prevent the sub-layer plate 4 from sliding or displacing unexpectedly due to gravity or impact. First drive block 92: The first drive block 92 has an L-shaped structure and is slidably assembled inside the front receiving box of the receiving block 97. The inner side is provided with a tooth set that meshes with the gear 94. It can achieve synchronous reverse opening and closing sliding with the second drive block 98. With the guidance and limit of the guide groove 95 and the guide seat 96, it ensures that the sliding trajectory is smooth and accurate, without deviation or jamming, and stably completes the unlocking and resetting locking actions. The structure is compact and the action linkage is strong. Spring 93: Spring 93 is connected between the inner walls of the first drive block 92, the second drive block 98 and the receiving block 97 respectively. Under normal conditions, it is kept in a slightly compressed state and can continuously provide an outward pushing force to the two sets of drive blocks, so that the locking block 91 is always firmly locked in the slot 14 to prevent accidental disengagement and loosening. When unlocking, it can be smoothly compressed with the drive block. When resetting, it can automatically lock by elastic rebound, without the need for manual locking, and the operation is convenient. Gear 94: Gear 94 is rotatably connected to the rear support plate of the support block 97, and meshes with the tooth groups on the inner side of the first drive block 92 and the second drive block 98 respectively, playing a role in transmission reversal, ensuring that the two sets of drive blocks open and close synchronously in opposite directions, so that the unlocking and locking actions on both sides are completely synchronized and the force is balanced, avoiding one-sided jamming and uneven force, and improving the stability and synchronization of the overall locking structure. Guide groove 95: The guide groove 95 is formed on the front end face of the first drive block 92 and the second drive block 98, and slides with the guide seat 96. It can strictly limit the sliding trajectory of the drive block, prevent the drive block from deviating, shaking, or jamming during the sliding process, ensure smooth opening and closing action, and improve the accuracy and stability of unlocking and locking adjustment. Receiving block 97: The receiving block 97 consists of an integrated front receiving box and a rear receiving plate. The overall structure has high strength and compact assembly. The rear receiving plate slides vertically along the guide rail 9, providing a lifting and sliding base for the overall locking assembly. The front receiving box provides a closed installation space for the gear 94, drive block, spring 93, and guide seat 96, protecting the internal parts from bumps, dust accumulation, and jamming, and ensuring the long-term stable operation of the linkage structure. Second drive block 98: The second drive block 98 is symmetrically arranged with the first drive block 92. It also adopts an L-shaped structure and a toothed tooth assembly structure. It meshes and links with the gear 94, and can synchronously cooperate with the first drive block 92 to complete the reverse opening and closing action, realize the synchronous unlocking and locking on both sides, ensure that the two ends of the sub-layer plate 4 are evenly stressed and firmly locked, and avoid loosening and tilting on one side. Guide seat 96: The guide seat 96 is fixedly installed inside the receiving box in front of the receiving block 97 and corresponds one-to-one with the two sets of driving blocks. It slides with the guide groove 95 at the front end of the driving block to provide precise guidance constraint for the sliding of the driving block, further improve the smoothness of the sliding of the driving block, eliminate deviation and jamming, and ensure the long-term accurate and smooth operation of the locking component. Slot 14: Slot 14 is arranged in a linear array on the left and right sides of guide rail 9. The opening edge is chamfered. The multi-position slot can achieve precise positioning of sub-layer plate 4 at multiple heights, adapting to different stacking heights of goods. The chamfered opening can cooperate with the chamfer of locking block 91 for quick guidance and alignment, reducing the difficulty of locking operation and improving assembly convenience, while ensuring that locking block 91 is firmly inserted and not easy to dislodge. Connecting rod 11: The connecting rod 11 is distributed in a circumferential array on the annular protrusion of the pallet 8. The upper end is uniformly fixedly connected to the sub-layer plate 4. Multiple sets of connecting rods 11 evenly distribute the load of the pallet 8 and the goods it supports, so as to realize the horizontal and stable suspension of the pallet 8, effectively prevent the pallet 8 from shaking, tilting and deforming, and ensure the long-term stability and effectiveness of the bottom protection structure.

[0024] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pre-packaged food sorting and display shelf device, comprising a support frame (1), characterized in that: The support frame (1) is formed by welding multiple sets of square steel together. The rear end of the support frame (1) is fixedly connected to a rear baffle (2). The main layer plate (5) is fixedly connected to the horizontally arranged square steel of the support frame (1). The secondary layer plate (4) is evenly arranged on the main layer plate (5). Each of the sub-layer plates (4) has a through hole (7) with a limit module embedded inside. Each sub-layer plate (4) is equipped with a vertical lifting adjustment mechanism at its rear end.

2. The pre-packaged food sorting and display shelf device according to claim 1, characterized in that: The adjustment mechanism includes a guide rail (9) and a locking component. The guide rail (9) is fixedly connected to the front end face of the rear baffle (2). The front end of the locking component is fixedly connected to the sub-layer plate (4). The rear end of the locking component is slidably mounted on the guide rail (9).

3. The pre-packaged food sorting and display shelf device according to claim 2, characterized in that: Each of the slots (14) has a chamfered edge at the opening.

4. The pre-packaged food sorting and display shelf device according to claim 3, characterized in that: The locking assembly includes a locking block (91), a first driving block (92), a gear (94), a receiving block (97), and a second driving block (98). The receiving block (97) consists of a front receiving box and a rear receiving plate with an integrated structure. The rear end of the rear receiving plate of the receiving block (97) slides along the vertical direction of the guide rail (9). The gear (94) is rotatably connected to the rear receiving plate of the receiving block (97) through a rotating shaft. The first driving block (92) and the second driving block (98) are symmetrically assembled inside the front receiving box of the receiving block (97). The locking block (91) is fixedly connected to the left side of the first driving block (92) and the right side of the second driving block (98).

5. A pre-packaged food sorting and display shelf device according to claim 4, characterized in that: The locking assembly also includes a spring (93) and a guide seat (96). The spring (93) is fixedly connected between the left side of the first drive block (92) and the inner wall of the front receiving box of the receiving block (97), and between the right side of the second drive block (98) and the inner wall of the front receiving box of the receiving block (97). The guide seat (96) is fixedly installed inside the front receiving box of the receiving block (97).

6. A pre-packaged food sorting and display shelf device according to claim 5, characterized in that: The two locking blocks (91) are precisely inserted into the slots (14) of the guide rail (9), and the end faces of the locking blocks (91) facing the slots (14) are chamfered.

7. A pre-packaged food sorting and display shelf device according to claim 6, characterized in that: The limiting module includes a positioning seat (6) and a tray (8). The positioning seat (6) is embedded in each placement hole (7). The positioning seat (6) has a flared structure. The opening of the positioning seat (6) gradually narrows from top to bottom. The tray (8) is located below each placement hole (7). The tray (8) is composed of a circular plate and a peripheral annular protrusion. Several connecting rods (11) are distributed in a circular array on the annular protrusion of the tray (8). The upper end of each rod is fixedly connected to the sub-layer plate (4) so ​​that the tray (8) can be stably suspended and fixed.

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