A flat shelf for cold storage

Abstract

The application provides a flat shelf for cold storage, and relates to the technical field of cold storage, which comprises a rack, a cleaning mechanism is arranged in the rack, the cleaning mechanism comprises a support frame, a through hole and a cleaning hole are formed in the outer surface of the support frame, a support rod is rotationally connected to the inner surface of the support frame, a connecting rod is fixedly connected to the outer surface of the support rod, two support plates are symmetrically rotationally connected to the inner surface of the support frame through bearings, the cleaning hole is blocked, the smoothness of subsequent tray transmission is affected, on the other hand, the contact between the bottom of the tray and the support surface is uneven, the goods are unstable, and the goods are damaged or storage safety hazards are caused, the cleaning method solves the core problem of frost accumulation, avoids the pollution of the tray with frost to other storage areas, significantly improves the cleanliness of the cold storage environment, reduces the equipment failure caused by frost, and ensures the long-term stable operation of the shelf.

Description

Technical Field

[0001] This invention relates to the field of cold storage technology, and in particular to a flat shelf for cold storage. Background Technology

[0002] In the field of cold chain logistics and food processing, cold storage is a core storage facility. The operational stability, storage efficiency and maintenance cost of its internal shelves are directly related to the quality of goods and the operating efficiency of enterprises. With the growth of demand for bulk turnover of fresh and frozen products, traditional cold storage flat shelves have gradually exposed many adaptability defects and are difficult to meet the high efficiency and safety requirements of modern cold chain warehousing. First, the low temperature and high humidity environment in cold storage easily causes water vapor to condense into frost on the bottom of the pallets. Existing shelves generally lack targeted automatic cleaning mechanisms. If the frost layer on the bottom of the pallets is not cleaned in time, it will contaminate other storage areas as the pallets are moved around. Furthermore, a thickened frost layer will cause uneven contact between the pallet and the support surface, which can easily cause goods to tip over and be damaged in the vibration environment of cold storage, especially fresh and frozen products. Existing cleaning methods rely on manual wiping at regular intervals, which not only requires frequent entry and exit from the low temperature environment, but also has limited cleaning effect on hidden areas such as the inner walls of cleaning holes, and increases the company's labor and time costs. Second, the pallet transmission mechanism of traditional shelves mostly adopts a simple push-pull structure, which has obvious positioning defects and lacks a stable synchronous transmission design. The movement trajectory of the push plate is prone to deviation, leading to The inability of pallets to accurately align with storage locations not only wastes storage space but also risks causing pallet collisions that could damage equipment. For scenarios involving continuous loading of multiple pallets, existing mechanisms struggle to achieve orderly transmission with consistent displacement and relay of positions. Furthermore, existing cleaning technologies suffer from low efficiency and secondary pollution, further exacerbating equipment wear and tear. Ordinary brush cleaning can only remove surface frost, offering limited effectiveness against stubborn frost clumps entangled in the brushes or tightly adhered to the surface. Long-term accumulation can lead to the failure of cleaning components. Although some shelves are equipped with defrosting devices, high-temperature defrosting can easily cause goods to thaw and deteriorate. Moreover, the melted "water-slag mixture" relies on natural flow for drainage, which is prone to accumulating and freezing in low-temperature environments, clogging drainage channels and affecting the flexibility of the mechanism's movement. Therefore, we propose a flat shelf for cold storage. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems by providing a flat shelf for cold storage.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a flat shelf for cold storage, comprising a frame, wherein a cleaning mechanism is provided inside the frame, the cleaning mechanism comprising a support frame, the outer surface of the support frame having through holes and cleaning holes, a support rod rotatably connected to the inner surface of the support frame, a connecting rod fixedly connected to the outer surface of the support rod, two support plates symmetrically rotatably connected to the inner surface of the support frame via bearings, a positioning groove being provided on the outer surface of the frame, a positioning rod slidably connected to the inner surface of the positioning groove, a roller fixedly connected to the outer surface of the positioning rod, a brush being provided on the outer surface of the roller, a first gear fixedly connected to the outer surface of the positioning rod near its end, a first rack fixedly connected to the inner surface of the frame, the first gear meshing with the first rack, and the brush contacting the cleaning holes.

[0005] Preferably, a rotating rod is rotatably connected to the inner surface of the frame via a bearing, a first rotating plate is fixedly connected to the outer surface of the rotating rod, a second rotating plate is rotatably connected to the end of the first rotating plate via a bearing, and the other end of the second rotating plate is rotatably connected to a positioning rod.

[0006] Preferably, the frame is further provided with a control mechanism, which includes a connecting frame. A second rack is fixedly connected to the outer surface of the connecting frame, and a second gear is fixedly connected to the outer surface of the rotating rod. The second gear meshes with the second rack. A first sliding groove is formed on the outer surface of each of the two support plates near one side. A first connecting rod is slidably connected to the inner surface of each of the two first sliding grooves. A second connecting rod is fixedly connected between the two first connecting rods. A second sliding groove is formed on the outer surface of the connecting rod, and the second sliding groove is slidably connected to the second connecting rod. A first limiting groove is formed on the inner surface of the support frame. A lifting frame is slidably connected to the inner surface of the first limiting groove. A third sliding groove is formed on the outer surface of the lifting frame. A third connecting rod is fixedly connected to the other end of the connecting rod, and the third connecting rod is slidably connected to the third sliding groove. The lifting frame is fixedly connected to the connecting frame.

[0007] Preferably, a limiting frame is fixedly connected to the inner surface of the support frame, and the limiting frame is slidably connected to the connecting frame.

[0008] Preferably, the frame is further provided with a moving mechanism, which includes a moving base. A push plate is fixedly connected to the top of the moving base, and the push plate is slidably connected to a cleaning hole. Two mounting seats are fixedly connected to the lower surface of the moving base. Two mounting rods are rotatably connected to the inner surface of the frame via bearings. A first connecting plate is fixedly connected to the outer surface of each of the two mounting rods. A second connecting plate is rotatably connected to the other end of each of the two first connecting plates. The center of each of the two second connecting plates is rotatably connected to a mounting seat. A third connecting plate is rotatably connected to the other end of each of the two second connecting plates. The other end of each of the two third connecting plates is rotatably connected to the inner surface of the frame. A fourth connecting plate is rotatably connected between the two second connecting plates. Multiple trays are slidably connected to the upper surface of the support frame.

[0009] Preferably, a motor is fixedly connected to the inner surface of the frame, and the output end of the motor is fixedly connected to the mounting rod.

[0010] Preferably, a heating plate is installed on the inner surface of the support plate, and a sewage exhaust duct is connected to the lower surface of the support frame.

[0011] Preferably, the frame is further provided with a striking mechanism, which includes a fixed frame, a fixed connection to the outer surface of a support rod, a stop bar fixedly connected to the outer surface of the fixed frame, a rotating ring rotatably connected to the outer surface of the support rod, a stop bar fixedly connected to one side of the rotating ring and in contact with the stop bar, a first pull rod fixedly connected to the other side of the rotating ring, a slider rotatably connected to the other end of the first pull rod via a bearing, a support platform fixedly connected to the inner surface of the support frame, a second pull rod rotatably connected to the upper surface of the support platform via a rotating shaft, a sliding groove formed on the outer surface of the second pull rod, a slider slidably connected to the sliding groove, a first spring fixedly connected between the slider and the sliding groove, a striking wheel rotatably connected to the outer surface of the second pull rod, a striking plate fixedly connected to the inner surface of the support frame, and both the positioning rod and the roller slidably connected to the striking plate.

[0012] Preferably, a positioning ring is fixedly connected to the outer surface of the support rod, a limiting plate is fixedly connected to the lower surface of the positioning ring, a second spring is fixedly connected to the upper surface of the support platform, a mounting bracket is fixedly connected to the other end of the second spring, a pulley is rotatably connected to the inner surface of the mounting bracket, and the pulley is slidably connected to the limiting plate.

[0013] Preferably, a vertical rod is fixedly connected to the lower surface of the mounting bracket, and a vertical groove is formed on the outer surface of the support platform, with the vertical rod slidably connected to the vertical groove.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0015] 1. This invention proposes a flat shelf for cold storage. In this invention, when the pallet reaches the leftmost position, its bottom edge touches the support plate, causing the support plate to rotate around the bearing. The first sliding groove of the support plate deflects, driving the first and second connecting rods to rotate, pushing the connecting rod to rotate around the support rod, and then pushing the lifting frame to rise along the first limiting groove through the third connecting rod. The lifting frame and the connecting frame rise synchronously, and the second rack of the connecting frame engages to drive the rotating rod to rotate. The rotating rod pulls the two positioning rods to slide towards the middle through the first and second rotating plates. The first gear of the positioning rod engages with the first rack, driving the positioning rod and the roller to rotate, and the roller brush cleans synchronously. The cleaning method effectively removes frost from the inner walls of the cleaning holes and the bottom of the trays. If the frost is not cleaned, it will gradually thicken, causing blockage of the cleaning holes and affecting the smooth transfer of subsequent trays. It also causes uneven contact between the bottom of the tray and the support surface, resulting in unstable placement of goods and potentially leading to damage or storage safety hazards. This cleaning method not only solves the core problem of frost accumulation but also prevents frost-laden trays from contaminating other storage areas, significantly improving the cleanliness of the cold storage environment. At the same time, it reduces equipment failures caused by frost and ensures the long-term stable operation of the shelves.

[0016] 2. This invention proposes a flat shelf for cold storage. Its starting motor drives a mounting rod to rotate, and the first connecting plate of the mounting rod pulls one end of the second connecting plate upwards. The two second connecting plates move synchronously through a fourth connecting plate, combined with a third connecting plate for limiting movement, pushing a movable seat to slide upwards and to the left. The movable seat drives a push plate to embed into a cleaning hole. After the push plate contacts the pallet, it drives the pallet to slide along the surface of the support frame to the middle storage position. Each movement is consistent in displacement, avoiding space waste or collision risks caused by pallet misalignment during transport, significantly improving the accuracy of material loading and transport. The orderly relay-style batch transport mode is suitable for the continuous loading needs of multiple pallets in cold storage, maximizing the utilization of shelf storage space, improving batch storage adaptability and operational efficiency, and is especially suitable for storage scenarios of fresh and frozen goods requiring batch turnover.

[0017] 3. This invention proposes a flat shelf for cold storage. When the support rod rotates with the connecting rod, its fixed frame deflects synchronously. The stop bar of the fixed frame contacts the abutment of the rotating ring and pushes it to rotate around the support rod. The rotating ring pulls the first pull rod, causing the slider to slide along the sliding groove of the second pull rod and compress the first spring, completing the power reserve. When the abutment disengages from the stop bar, the first spring resets and pushes the slider, causing the second pull rod to swing rapidly around the support platform. The striking wheel of the second pull rod strikes the striking plate to generate vibration. The vibration is transmitted to the positioning rod, roller, brush, and support plate. Vibration is achieved through spring reserve and release of power, eliminating the need for an additional power source and reducing energy consumption. The vibration shakes off stubborn frost entangled in the brush, preventing the brush from clogging and affecting the cleaning effect. At the same time, it accelerates the melting of frost on the surface of the support plate, improves defrosting and cleaning efficiency, and reduces the frequency and cost of manual maintenance.

[0018] 4. This invention proposes a flat shelf for cold storage. When the support plate rotates under pressure, the embedded heating plate inside is activated. The heat from the heating plate is conducted through the support plate to the bottom of the tray, heating the frost layer at a low temperature to prevent the goods from thawing. After the frost melts, it forms a "water and residue mixture" with the residue cleaned by the brush, which falls into the support frame. The exhaust duct on the lower surface of the support frame is connected to a negative pressure exhaust device. The negative pressure draws the "water-residue mixture" to a collection box outside the cold storage. The heating plate defrosts at a low temperature, ensuring that the frost melts quickly for easy cleaning and preventing the goods from thawing and deteriorating due to high temperatures, thus ensuring the quality of stored goods. The negative pressure exhaust replaces natural flow, preventing the "water and residue mixture" from accumulating and freezing inside the support frame, avoiding blockage of the drainage channel or affecting the movement of the mechanism, and improving the long-term operational reliability of the equipment. Attached Figure Description

[0019] Figure 1 This invention provides a front view structural schematic diagram of a flat shelf for cold storage.

[0020] Figure 2 This invention provides a partial rear view structural diagram of a flat shelf for cold storage.

[0021] Figure 3 This invention provides a schematic diagram of a partial structure of the rollers in a flat shelf for cold storage.

[0022] Figure 4 This invention provides a partial structural diagram of the movable seat of a flat shelf for cold storage.

[0023] Figure 5 This invention provides a schematic diagram of a partial structure of a motor for a flat shelf used in cold storage.

[0024] Figure 6 This invention provides a partial structural diagram of the support frame for a flat shelf used in cold storage.

[0025] Figure 7 This invention proposes a flat shelf for cold storage. Figure 6 A magnified view of the structure at point A in the middle;

[0026] Figure 8 This invention provides a partial structural diagram of a limiting plate for a flat shelf used in cold storage.

[0027] Figure 9 This invention provides a partial structural diagram of a support platform for a flat shelf used in cold storage.

[0028] Legend: 1. Frame; 2. Cleaning mechanism; 201. Support frame; 202. Through hole; 203. Cleaning hole; 204. Support rod; 205. Connecting rod; 206. Support plate; 207. Positioning groove; 208. Positioning rod; 209. Roller; 210. Brush; 211. First gear; 212. First rack; 3. Control mechanism; 301. Connecting frame; 302. Second rack; 303. Second gear; 304. First slide groove; 305. First connecting rod; 306. Second connecting rod; 307. Second slide groove; 308. First limit groove; 309. Lifting frame; 310. Third slide groove; 311. Third connecting rod; 4. Moving mechanism; 401. Moving seat; 402. Push plate; 40 3. Mounting base; 404. Mounting rod; 405. First connecting plate; 406. Second connecting plate; 407. Third connecting plate; 408. Fourth connecting plate; 5. Striking mechanism; 501. Fixing frame; 502. Stop bar; 503. Rotating ring; 504. Abutment bar; 505. First pull rod; 506. Sliding block; 507. Support platform; 508. Second pull rod; 509. Sliding groove; 510. First spring; 511. Striking wheel; 512. Striking plate; 6. Rotating rod; 7. First rotating plate; 8. Second rotating plate; 9. Limiting frame; 10. Motor; 12. Sewage duct; 13. Positioning ring; 14. Limiting plate; 15. Second spring; 16. Mounting frame; 17. Pulley; 18. Vertical rod; 19. Vertical groove. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0031] like Figure 1 - Figure 9As shown, a flat shelf for cold storage includes a frame 1. A cleaning mechanism 2 is installed inside the frame 1. The cleaning mechanism 2 includes a support frame 201. The outer surface of the support frame 201 has through holes 202 and cleaning holes 203. A support rod 204 is rotatably connected to the inner surface of the support frame 201. A connecting rod 205 is fixedly connected to the outer surface of the support rod 204. Two support plates 206 are symmetrically rotatably connected to the inner surface of the support frame 201 via bearings. A positioning groove 207 is provided on the outer surface of the frame 1. A positioning rod 208 is slidably connected to the inner surface of the positioning groove 207. A roller 209 is fixedly connected to the outer surface of the positioning rod 208. A brush 210 is provided on the outer surface of the roller 209. A first gear 211 is fixedly connected to the outer surface of the positioning rod 208 near its end. A first rack 212 is fixedly connected to the inner surface of the frame 1. The first gear 211 meshes with the first rack 212. The brush 210 contacts the cleaning hole 203.

[0032] The effect is that the first rotating plate 7 on the outer surface of the rotating rod 6 swings synchronously with the rotating rod 6, and the second rotating plate 8 pulls the two positioning rods 208 to slide laterally towards the middle along the positioning groove 207 on the outer surface of the frame 1. When the positioning rod 208 slides towards the middle, the first gear 211 near its end meshes with the first rack 212 on the inner surface of the frame 1. The meshing action drives the positioning rod 208 to rotate itself. The roller 209 on the outer surface of the positioning rod 208 rotates synchronously with the positioning rod 208. The brush 210 on the outer surface of the roller 209 slides in contact with the inner wall of the cleaning hole 203 to rub and clean the frost layer accumulated in the cleaning hole 203. On the other hand, the top of the brush 210 contacts the bottom of the tray to rotate and wipe the frost layer attached to the bottom of the tray, preventing the tray from bringing back the frost layer and contaminating other storage areas.

[0033] like Figure 1 - Figure 9As shown, a rotating rod 6 is rotatably connected to the inner surface of the frame 1 via a bearing. A first rotating plate 7 is fixedly connected to the outer surface of the rotating rod 6. A second rotating plate 8 is rotatably connected to the end of the first rotating plate 7 via a bearing. The other end of the second rotating plate 8 is rotatably connected to a positioning rod 208. A control mechanism 3 is also provided inside the frame 1. The control mechanism 3 includes a connecting frame 301. A second rack 302 is fixedly connected to the outer surface of the connecting frame 301. A second gear 303 is fixedly connected to the outer surface of the rotating rod 6. The second gear 303 meshes with the second rack 302. A first sliding groove 304 is provided on the outer surface of each of the two support plates 206 near one side. A first sliding groove 304 is slidably connected to the inner surface of each of the two first sliding grooves 304. A connecting rod 305 is fixedly connected to two first connecting rods 305, and a second connecting rod 306 is fixedly connected between them. A second sliding groove 307 is opened on the outer surface of the connecting rod 205, and the second sliding groove 307 is slidably connected to the second connecting rod 306. A first limiting groove 308 is opened on the inner surface of the support frame 201, and a lifting frame 309 is slidably connected to the inner surface of the first limiting groove 308. A third sliding groove 310 is opened on the outer surface of the lifting frame 309. A third connecting rod 311 is fixedly connected to the other end of the connecting rod 205, and the third connecting rod 311 is slidably connected to the third sliding groove 310. The lifting frame 309 is fixedly connected to the connecting frame 301. A limiting frame 9 is fixedly connected to the inner surface of the support frame 201, and the limiting frame 9 is slidably connected to the connecting frame 301.

[0034] The effect is as follows: when the pallet is transferred to the far left, the left edge of the bottom of the pallet first contacts the top of the support plate 206. As the pallet continues to move to the left, its own weight acts on the top of the two support plates 206, overcoming the supporting force of the second spring 15 of the support plates 206, causing the support plates 206 to rotate around the bearing. When the support plates 206 rotate, the first groove 304 on its surface deflects synchronously with the support plates 206. The first connecting rod 305 in the first groove 304 slides in the groove. The two first connecting rods 305 are fixedly connected by the second connecting rod 306, forming a synchronous motion structure. The second connecting rod 306 pushes one end of the connecting rod 205 downward, causing the connecting rod 205 to rotate counterclockwise around the support rod 204. The other end of the connecting rod 205 is lifted upward as it rotates, and the third connecting rod 311 at its end slides into the third sliding groove 310 of the lifting frame 309. The lifting frame 309 is pushed vertically upward along the first limiting groove 308 on the inner surface of the support frame 201 by the upward component force. The top of the lifting frame 309 is fixed to the connecting frame 301. The connecting frame 301 moves upward synchronously with the lifting frame 309, and the inner surface of the connecting frame 301 slides into the outer surface of the limiting frame 9. The second rack 302 on the outer surface of the connecting frame 301 meshes with the second gear 303 on the outer surface of the rotating rod 6. When the second rack 302 moves upward, it drives the second gear 303 to rotate, thereby driving the rotating rod 6 to rotate around the bearing on the inner surface of the frame 1.

[0035] like Figure 1 - Figure 9 As shown, a moving mechanism 4 is also provided inside the frame 1. The moving mechanism 4 includes a moving base 401. A push plate 402 is fixedly connected to the top of the moving base 401. The push plate 402 is slidably connected to the cleaning hole 203. Two mounting seats 403 are fixedly connected to the lower surface of the moving base 401. Two mounting rods 404 are rotatably connected to the inner surface of the frame 1 through bearings. A first connecting plate 405 is fixedly connected to the outer surface of each of the two mounting rods 404. A second connecting plate 406 is rotatably connected to the other end of each of the two first connecting plates 405. The center of the two second connecting plates 406 is... All are rotatably connected to the mounting base 403. The other ends of the two second connecting plates 406 are rotatably connected to the third connecting plate 407. The other ends of the two third connecting plates 407 are rotatably connected to the inner surface of the frame 1. A fourth connecting plate 408 is rotatably connected between the two second connecting plates 406. Multiple trays are slidably connected to the upper surface of the support frame 201. A motor 10 is fixedly connected to the inner surface of the frame 1. The output end of the motor 10 is fixedly connected to the mounting rod 404. A heating plate is installed on the inner surface of the support plate 206. A sewage exhaust duct 12 is connected to the lower surface of the support frame 201.

[0036] The effect is as follows: when the motor 10 fixed on the inner surface of the frame 1 is started, the output end of the motor 10 drives the mounting rod 404 to rotate around the bearing. The first connecting plate 405 on the outer surface of the mounting rod 404 swings upward synchronously with the mounting rod 404. Through the rotational connection, it pulls one end of the second connecting plate 406 upward. Since the two second connecting plates 406 are rigidly connected through the fourth connecting plate 408, synchronous movement is ensured. And the other end of the second connecting plate 406 is rotatably connected to the third connecting plate 407, pushing the movable seat 401 to slide to the upper left along the inner surface of the frame 1. The push plate 402 on the top of the movable seat 401 moves to the upper left synchronously with the movable seat 401. As the push plate 402 slides, it gradually embeds into the cleaning hole 203, and the upper surface of the push plate 402 contacts one side of the pallet, causing the pallet to slide to the left along the upper surface of the support frame 201. When the pallet slides to the middle storage position, the support plate 206 rotates under pressure, and the heating plate embedded inside it is activated. The heat released by the heating plate is transferred to the upper surface of the support plate 206 through heat conduction, and then to the bottom of the pallet, heating the frost layer at the bottom of the pallet at a low temperature to prevent the goods from thawing and to melt the frost layer. The melted frost water mixes with the residue cleaned by the brush 210 to form a "water-residue mixture", which then falls into the support frame 201.

[0037] like Figure 1 - Figure 9As shown, the frame 1 is also equipped with a striking mechanism 5. The striking mechanism 5 includes a fixed frame 501, which is fixedly connected to the outer surface of the support rod 204. A stop rod 502 is fixedly connected to the outer surface of the fixed frame 501. A rotating ring 503 is rotatably connected to the outer surface of the support rod 204. A stop rod 504 is fixedly connected to one side of the rotating ring 503 and contacts the stop rod 502. A first pull rod 505 is fixedly connected to the other side of the rotating ring 503. A slider 506 is rotatably connected to the other end of the first pull rod 505 through a bearing. A support platform 507 is fixedly connected to the inner surface of the support frame 201. A second pull rod 508 is rotatably connected to the upper surface of the support platform 507 through a rotating shaft. A sliding groove 509 is formed on the outer surface of the second pull rod 508. The slider 506 is slidably connected to the sliding groove 509. A first spring 510 is fixedly connected between the slider 506 and the sliding groove 509. A striking wheel 511 is rotatably connected to the outer surface of the second pull rod 508. A striking plate 512 is fixedly connected to the inner surface of the support frame 201. The positioning rod 208 and the roller 209 are slidably connected to the striking plate 512. A positioning ring 13 is fixedly connected to the outer surface of the support rod 204. A limit plate 14 is fixedly connected to the lower surface of the positioning ring 13. A second spring 15 is fixedly connected to the upper surface of the support platform 507. A mounting frame 16 is fixedly connected to the other end of the second spring 15. A pulley 17 is rotatably connected to the inner surface of the mounting frame 16. The pulley 17 is slidably connected to the limit plate 14. A vertical rod 18 is fixedly connected to the lower surface of the mounting frame 16. A vertical groove 19 is opened on the outer surface of the support platform 507. The vertical rod 18 is slidably connected to the vertical groove 19.

[0038] The effect is as follows: when the support rod 204 rotates with the connecting rod 205, the fixed frame 501 fixed on its outer surface deflects synchronously. The stop bar 502 on the outer surface of the fixed frame 501 contacts the abutment bar 504 of the rotating ring 503. As the support rod 204 continues to rotate, the stop bar 502 pushes the abutment bar 504 to rotate around the support rod 204. The rotating ring 503 rotates synchronously and pulls the first pull rod 505. The slider 506 at the other end of the first pull rod 505 slides along the sliding groove 509 of the second pull rod 508, while compressing the first spring 510 to complete the hammering power reserve. When the abutment bar 504 rotates with the rotating ring 503 to the other side, the first spring 510 generates an instantaneous thrust to push the slider 506 to slide in the opposite direction, causing the second pull rod 508 to swing rapidly around the axis of the support platform 507. The hammering wheel 511 of the second pull rod 508 strikes the hammering plate 512 on the inner surface of the support frame 201 rapidly with the swinging motion, generating vibration. The vibration is transmitted through the hammering plate. 512 is transmitted to the positioning rod 208, roller 209 and brush 210, shaking off stubborn frost and residue entangled between the bristles of brush 210. At the same time, the vibration is transmitted to the support plate 206, accelerating the melting of residual frost on the surface of the support plate 206 and enhancing the cleaning effect. After the operator takes the pallet from the material picking area on the left, the pressure of the pallet on the support plate 206 disappears, the second spring 15 on the upper surface of the support table 507 elastically resets, and pushes the mounting frame 16 upward. The pulley 17 on the inner surface of the mounting frame 16 slides along the limiting plate 14 on the lower surface of the positioning ring 13, generating an upward thrust to drive the limiting plate 14 to rotate around the support rod 204. The positioning ring 13 rotates synchronously with the limiting plate 14, driving the support rod 204 to rotate in the opposite direction. Then, through the linkage of the connecting rod 205, the second connecting rod 306 and the first connecting rod 305, the support plate 206 is pulled to rotate in the opposite direction to restore the initial tilted state. At the same time, the rotation of the support rod 204 drives the fixing frame 501 to reset.

[0039] Working principle: Before loading, the moving mechanism 4 is in the standby position, the moving seat 401 is located on the lower right side of the inner surface of the frame 1, the push plate 402 retracts to the lower right edge channel of the cleaning hole 203, and the upper surface of the push plate 402 is lower than the surface of the support frame 201 to avoid affecting the placement of the pallet. The pallet on the upper surface of the support frame 201 is placed stably in the right loading area, and the bottom of the pallet is in contact with the sliding surface of the support frame 201. The motor 10 fixed on the inner surface of the frame 1 is started. The output end of the motor 10 drives the mounting rod 404 to rotate around the bearing. The first connecting plate 405 on the outer surface of the mounting rod 404 swings upward synchronously with the mounting rod 404. Through the rotation connection, it pulls one end of the second connecting plate 406 upward. Since the two second connecting plates 406 are rigidly connected by the fourth connecting plate 408, To ensure synchronized movement, and with the other end of the second connecting plate 406 rotatably connected to the third connecting plate 407, the movable seat 401 is pushed to slide upwards and to the left along the inner surface of the frame 1. The push plate 402 on top of the movable seat 401 slides upwards and to the left synchronously with the movable seat 401. The push plate 402 gradually embeds into the cleaning hole 203, and the upper surface of the push plate 402 contacts one side of the tray, causing the tray to slide to the left along the upper surface of the support frame 201. The tray slides to the middle storage position. When material needs to be retrieved, the motor 10 rotates again, the push plate 402 re-embeds into the cleaning hole 203 and pushes the tray to continue moving to the left, transferring it from the middle storage position to the left material retrieval area. When the tray is transferred to the far left, the left edge of the bottom of the tray first contacts the top of the support plate 206, and as the tray continues to move to the left... When the pallet moves, its own weight acts on the top of the two support plates 206, overcoming the supporting force of the second spring 15 of the support plate 206, causing the support plate 206 to rotate around the bearing. When the support plate 206 rotates, the first groove 304 on its surface deflects synchronously with the support plate 206. The first connecting rod 305 in the first groove 304 slides in the groove. The two first connecting rods 305 are fixedly connected by the second connecting rod 306, forming a synchronous motion structure. The second connecting rod 306 pushes one end of the connecting rod 205 downward, causing the connecting rod 205 to rotate counterclockwise around the support rod 204. The other end of the connecting rod 205 is lifted upward with the rotation, and the third connecting rod 311 at its end slides into the third groove 310 of the lifting frame 309, pushing the lifting frame 309 through the upward component force. 09 slides vertically upward along the first limiting groove 308 on the inner surface of the support frame 201. The top of the lifting frame 309 is fixed to the connecting frame 301. The connecting frame 301 moves upward synchronously with the lifting frame 309, and the inner surface of the connecting frame 301 slides in cooperation with the outer surface of the limiting frame 9. The second rack 302 on the outer surface of the connecting frame 301 meshes with the second gear 303 on the outer surface of the rotating rod 6. When the second rack 302 moves upward, it drives the second gear 303 to rotate, thereby driving the rotating rod 6 to rotate around the bearing on the inner surface of the frame 1. The first rotating plate 7 on the outer surface of the rotating rod 6 swings synchronously with the rotating rod 6. Through the second rotating plate 8, it pulls the two positioning rods 208 to slide laterally towards the middle along the positioning groove 207 on the outer surface of the frame 1. When the positioning rods 208 slide towards the middle,The first gear 211 near its end meshes with the first rack 212 on the inner surface of the frame 1. The meshing action drives the positioning rod 208 to rotate. The roller 209 on the outer surface of the positioning rod 208 rotates synchronously with the positioning rod 208. The brush 210 on the outer surface of the roller 209 slides in contact with the inner wall of the cleaning hole 203 to rub and clean the frost accumulated in the cleaning hole 203. On the other hand, the top of the brush 210 contacts the bottom of the tray to rotate and wipe the frost attached to the bottom of the tray, preventing the tray from bringing back frost and contaminating other storage areas. When the support plate 206 is rotated under pressure, the heating plate embedded inside it is activated. The heat released by the heating plate is transferred to the upper surface of the support plate 206 through heat conduction, and then to the bottom of the tray, cooling the frost at the bottom of the tray. To prevent goods from thawing, the pallet is insulated to avoid heating the top goods and causing the frost layer to melt. The melted frost water mixes with the residue cleaned by the brush 210, forming a "water-slag mixture," which then falls into the support frame 201. The exhaust duct 12 connected to the lower surface of the support frame 201 is externally connected to a negative pressure exhaust device. Through negative pressure, the "water-slag mixture" in the slag collection chamber is extracted from the outside of the frame 1 and transported to a collection box outside the cold storage. When the support rod 204 rotates with the connecting rod 205, the fixed frame 501 fixed on its outer surface deflects synchronously. The stop bar 502 on the outer surface of the fixed frame 501 contacts the abutment bar 504 of the rotating ring 503. As the support rod 204 continues to rotate, the stop bar 502 pushes the abutment bar 504 to rotate around the support rod 204, and the rotating ring 50... 3. The first pull rod 505 is rotated synchronously and pulled. The slider 506 at the other end of the first pull rod 505 slides along the sliding groove 509 of the second pull rod 508, while compressing the first spring 510 to complete the hammering power reserve. When the abutment rod 504 rotates to the other side with the rotating ring 503, the first spring 510 generates an instantaneous thrust to push the slider 506 to slide in the opposite direction, causing the second pull rod 508 to swing rapidly around the axis of the support platform 507. The hammering wheel 511 of the second pull rod 508 hits the hammering plate 512 on the inner surface of the support frame 201 with the swinging motion, generating vibration. The vibration is transmitted through the hammering plate 512 to the positioning rod 208, roller 209 and brush 210, shaking off the stubborn frost and residue entangled between the bristles of the brush 210. At the same time, the vibration is transmitted to the support. Plate 206 accelerates the melting of residual frost on its surface, enhancing the cleaning effect. After the operator removes the pallet from the left-side material handling area, the pressure of the pallet on the support plate 206 disappears, and the second spring 15 on the upper surface of the support platform 507 elastically resets, pushing the mounting bracket 16 upward. The pulley 17 on the inner surface of the mounting bracket 16 slides along the limiting plate 14 on the lower surface of the positioning ring 13, generating an upward thrust that drives the limiting plate 14 to rotate around the support rod 204. The positioning ring 13 rotates synchronously with the limiting plate 14, causing the support rod 204 to rotate in the opposite direction. Then, through the linkage of the connecting rod 205, the second connecting rod 306, and the first connecting rod 305, the support plate 206 is pulled to rotate in the opposite direction to restore its initial tilted state. At the same time, the rotation of the support rod 204 causes the fixing bracket 501 to reset.The striking mechanism 5 returns to its initial state, completing one cycle of "material handling, cleaning, and resetting," and the entire machine returns to standby mode for the next operation.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A flat shelf for cold storage, comprising a frame (1), characterized in that: The frame (1) is equipped with a cleaning mechanism (2), which includes a support frame (201). The outer surface of the support frame (201) has a through hole (202) and a cleaning hole (203). The inner surface of the support frame (201) is rotatably connected to a support rod (204). The outer surface of the support rod (204) is fixedly connected to a connecting rod (205). The inner surface of the support frame (201) is symmetrically connected to two support plates (206) via bearings. The outer surface of the frame (1) is provided with a positioning groove (207). The inner surface of the positioning groove (207) is slidably connected to a positioning rod (208). The outer surface of the positioning rod (208) is fixedly connected to a roller (209). The outer surface of the roller (209) is provided with a brush (210), the outer surface of the positioning rod (208) near the end is fixedly connected with a first gear (211), the inner surface of the frame (1) is fixedly connected with a first rack (212), the first gear (211) and the first rack (212) are meshed, the brush (210) contacts the cleaning hole (203), the inner surface of the frame (1) is rotatably connected with a rotating rod (6) through a bearing, the outer surface of the rotating rod (6) is fixedly connected with a first rotating plate (7), the end of the first rotating plate (7) is rotatably connected with a second rotating plate (8) through a bearing, and the other end of the second rotating plate (8) is rotatably connected with the positioning rod (208). The frame (1) is also equipped with a control mechanism (3). The control mechanism (3) includes a connecting frame (301). A second rack (302) is fixedly connected to the outer surface of the connecting frame (301). A second gear (303) is fixedly connected to the outer surface of the rotating rod (6). The second gear (303) meshes with the second rack (302). A first groove (304) is provided on the outer surface of each of the two support plates (206) near one side. A first connecting rod (305) is slidably connected to the inner surface of each of the two first grooves (304). A second connecting rod (306) is fixedly connected between the two first connecting rods (305). A second groove is provided on the outer surface of the connecting rod (205). (307), the second slide groove (307) is slidably connected to the second connecting rod (306), the inner surface of the support frame (201) is provided with a first limiting groove (308), the inner surface of the first limiting groove (308) is slidably connected to a lifting frame (309), the outer surface of the lifting frame (309) is provided with a third slide groove (310), the other end of the connecting rod (205) is fixedly connected to a third connecting rod (311), the third connecting rod (311) is slidably connected to the third slide groove (310), the lifting frame (309) is fixedly connected to the connecting frame (301), the inner surface of the support frame (201) is fixedly connected to a limiting frame (9), and the limiting frame (9) is slidably connected to the connecting frame (301).

2. The flat shelf for cold storage according to claim 1, characterized in that: The frame (1) is also provided with a moving mechanism (4), which includes a moving base (401). A push plate (402) is fixedly connected to the top of the moving base (401). The push plate (402) is slidably connected to the cleaning hole (203). Two mounting seats (403) are fixedly connected to the lower surface of the moving base (401). Two mounting rods (404) are rotatably connected to the inner surface of the frame (1) through bearings. A first connecting plate (405) is fixedly connected to the outer surface of each of the two mounting rods (404). The other ends of the two first connecting plates (405) are rotatably connected to a second connecting plate (406), the center of the two second connecting plates (406) is rotatably connected to the mounting base (403), the other ends of the two second connecting plates (406) are rotatably connected to a third connecting plate (407), the other ends of the two third connecting plates (407) are rotatably connected to the inner surface of the frame (1), a fourth connecting plate (408) is rotatably connected between the two second connecting plates (406), and multiple trays are slidably connected to the upper surface of the support frame (201).

3. The flat shelf for cold storage according to claim 1, characterized in that: A motor (10) is fixedly connected to the inner surface of the frame (1), and the output end of the motor (10) is fixedly connected to the mounting rod (404).

4. The flat shelf for cold storage according to claim 1, characterized in that: A heating plate is installed on the inner surface of the support plate (206), and a sewage duct (12) is connected to the lower surface of the support frame (201).

5. The flat shelf for cold storage according to claim 1, characterized in that: The frame (1) is also equipped with a striking mechanism (5). The striking mechanism (5) includes a fixed frame (501), which is fixedly connected to the outer surface of the support rod (204). A stop rod (502) is fixedly connected to the outer surface of the fixed frame (501). A rotating ring (503) is rotatably connected to the outer surface of the support rod (204). A stop rod (504) is fixedly connected to one side of the rotating ring (503). The stop rod (504) contacts the stop rod (502). A first pull rod (505) is fixedly connected to the other side of the rotating ring (503). A slider (506) is rotatably connected to the other end of the first pull rod (505) through a bearing. A support platform (507) is fixedly connected to the inner surface of the support frame (201). A second pull rod (508) is rotatably connected to the upper surface of the support platform (507) via a rotating shaft. A sliding groove (509) is provided on the outer surface of the second pull rod (508). The slider (506) is slidably connected to the sliding groove (509). A first spring (510) is fixedly connected between the slider (506) and the sliding groove (509). A striking wheel (511) is rotatably connected to the outer surface of the second pull rod (508). A striking plate (512) is fixedly connected to the inner surface of the support frame (201). The positioning rod (208) and the roller (209) are both slidably connected to the striking plate (512).

6. The flat shelf for cold storage according to claim 5, characterized in that: A positioning ring (13) is fixedly connected to the outer surface of the support rod (204). A limiting plate (14) is fixedly connected to the lower surface of the positioning ring (13). A second spring (15) is fixedly connected to the upper surface of the support platform (507). A mounting bracket (16) is fixedly connected to the other end of the second spring (15). A pulley (17) is rotatably connected to the inner surface of the mounting bracket (16). The pulley (17) is slidably connected to the limiting plate (14).

7. The flat shelf for cold storage according to claim 6, characterized in that: A vertical rod (18) is fixedly connected to the lower surface of the mounting bracket (16), and a vertical groove (19) is provided on the outer surface of the support platform (507). The vertical rod (18) and the vertical groove (19) are slidably connected.

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