A frost-free uniform temperature air-cooled display cabinet

Abstract

The present invention relates to the field of defrosting technology, and specifically to a frost-free uniform temperature air-cooled display cabinet, comprising a side panel shell and a defrost device; a plurality of rotating plates are provided, and the rotating plates are rotatably arranged on the side panel shell evenly along the length direction of the side panel shell, and one side of the rotating plate in the width direction of the side panel shell is used for storing articles; a rotating device is provided above the rotating plate, and the rotating device can drive the rotating plate to rotate; a driving device is provided on the side of the rotating plate away from the articles; a cleaning rod is rotatably arranged on the driving device along the length direction of the side panel shell; a cleaning piece is fixedly provided on the cleaning rod, and the cleaning piece can contact the side wall of the rotating plate; a rack is fixedly provided on the side panel shell along the height direction of the side panel shell, on the side of the rotating plate away from the articles; a first gear is fixedly provided on the cleaning rod on one side of the rack along the axis of the cleaning rod, and the rack can drive the first gear to rotate, thereby avoiding the situation of stopping the machine for cleaning.

Description

Technical Field

[0001] The present invention relates to the technical field of defrosting, and in particular to a frost-free, uniform-temperature air-cooled display cabinet. Background Art

[0002] The minimum temperature for air-cooled display cabinets is generally -18°C. The freezer compartment temperature varies with the thermostat and, according to national standards, is generally -18°C. The soft freezer compartment temperature is -7°C. The refrigerator compartment temperature is 4°C. Some display cabinets use direct-cooling expansion evaporators or direct-cooling plate-and-tube evaporators. Frequent door opening and closing during use can easily cause extensive frost, resulting in large temperature differences between upper and lower parts and poor cooling performance, which can easily spoil food inside the cabinet. Furthermore, large amounts of defrost water can easily form inside the cabinet after shutdown.

[0003] Chinese patent CN209090559U discloses an electronic temperature-controlled air-cooled display cabinet, comprising a cabinet body, a fan fixing plate being provided at an angle on the upper outer side of the cabinet body, a fan being provided on the fan fixing plate, a temperature sensor being provided on the upper part of the fan, an evaporator being provided on the upper outer side of the cabinet body, a defrost sensor being provided in the middle of the evaporator, a compressor, a defrost water receiving tray, an external condenser and a condensing fan being provided in sequence from left to right on the bottom outer side of the cabinet body, the defrost water receiving tray being used to collect defrost water in the cabinet body, the condensing fan being used to dissipate heat to the external condenser, the defrost water receiving tray being located in the middle of the external condenser, and the evaporator being a fin-type evaporator; the fan being used to draw the cold air generated by the evaporator into the cabinet body, the cold air duct in the cabinet body being arranged in a serpentine shape, and the temperature sensor and the defrost sensor being connected to the compressor. The finned evaporator features a smaller size but concentrated cooling capacity. By installing an evaporator hood and fan mounting plate, an air chamber is created within the evaporator. The evaporator fan then draws cool air into the cabinet, achieving uniform cooling. A temperature sensor on the evaporator fan controls the compressor's on / off function, enabling precise temperature control. A defrost sensor is located on the finned evaporator. When the evaporator is frosted (too low), the compressor is shut down for an extended period, allowing for defrosting. The cabinet utilizes a bread-style external condenser with a condensing fan for optimal heat dissipation. The condensing fan operates in a suction mode, directing heat to the glass door panel, effectively eliminating condensation on the glass door, effectively killing two birds with one stone. Defrost water treatment: A centralized "recycling" method is employed. The defrost water inside the cabinet and condensation from the glass door are discharged into a defrost water collection tray. The water in the tray evaporates through the high-pressure condenser tube, where the compressor's high-pressure pipe generates the highest temperature.

[0004] Although the above scheme can effectively collect defrost water, it is still necessary to shut down the machine for defrosting during defrosting, which affects daily production and life. Although the production of frost can be reduced by air cooling in the existing technology, frost formation cannot be avoided in a freezing environment. After the freezing part has been working for a long time, there will often be a large amount of frost on the side walls of the freezing part, and defrosting is still required. If the existing cleaning device is used, multiple motors need to be set up, and since there are items placed in the cabinet, if the cleaning device is set in the space where the items are placed in the cabinet, the frost cannot be collected and removed. Summary of the Invention

[0005] In response to the above problems, a frost-free uniform temperature air-cooled display cabinet is provided. When the rotating plate is in a stationary state, the width direction of the rotating plate is parallel to the length direction of the side plate shell. After long-term use, frost will appear on the side of the rotating plate close to the article. The rotating device drives the rotating plate to rotate 180 degrees, and then the driving device is activated. The driving device drives the cleaning rod to move the cleaning rod along the height direction of the side plate shell. At this time, the first gear provided on the cleaning rod and the rack provided on the side plate shell move relative to each other, and the rack can drive the first gear to rotate, so that the cleaning member provided on the cleaning rod is also driven to rotate. Since the cleaning member can contact the side wall of the rotating plate, the cleaning member can remove the frost on the side wall of the rotating plate when the cleaning member rotates. As the driving device drives the cleaning rod to continue to descend, the rotating cleaning member can clean the entire side wall of the rotating plate, and the cleaned crushed ice falls to the lower part of the side plate shell, thereby preventing the crushed ice from falling on the side of the article, otherwise the crushed ice will stick to the article. At the same time, the machine is avoided from being shut down for cleaning, thereby ensuring normal production and life.

[0006] To solve the problems of the existing technology, a frost-free uniform temperature air-cooled display cabinet comprises a side panel shell and a defrost device; the defrost device comprises a rotating plate, a cleaning rod, a cleaning piece, a rotating device, a rack, a first gear and a driving device; a plurality of rotating plates are provided, and the rotating plates can be rotatably arranged on the side panel shell evenly along the length direction of the side panel shell, and one side of the rotating plate in the width direction of the side panel shell is used for storing items; the rotating device is provided above the rotating plate, and the rotating device can drive the rotating plate to rotate; the driving device is provided on the side of the rotating plate away from the item, and the driving device uses flowing cooling liquid as a power source; the cleaning rod can be rotatably arranged on the driving device along the length direction of the side panel shell, and the driving device is used to drive the cleaning rod to move along the height direction of the side panel shell; the cleaning piece is fixedly provided on the cleaning rod, and the cleaning piece can contact the side wall of the rotating plate; the rack is fixedly provided on the side panel shell along the height direction of the side panel shell on the side of the rotating plate away from the item; the first gear is fixedly provided on the cleaning rod on one side of the rack along the axis of the cleaning rod, and the rack can drive the first gear to rotate.

[0007] Preferably, the defrost device also includes a second gear and an extension plate; the extension plate is arranged on the driving device on one side of the first gear, and the extension plate extends toward the rack; the second gear is rotatably arranged on the extension plate, and the two sides of the second gear are respectively engaged with the first gear and the rack, and the diameter of the second gear is larger than the diameter of the first gear.

[0008] Preferably, the driving device includes a control device, a turbine, a synchronous wheel, a synchronous belt and a locking device; the control device is arranged on the side of the side plate shell away from the object, and the control device can be driven by the flowing coolant; the turbine is arranged on the control device, and the control device drives the turbine to rotate; there are two synchronous wheels, and the two synchronous wheels are arranged along the height direction of the side plate shell, and one of the synchronous wheels is located on one side of the turbine and can be driven to rotate by the turbine; the two ends of the synchronous belt are respectively mounted on the two synchronous wheels, and the synchronous belt and the synchronous wheel are matched for transmission, and the cleaning rod is fixed on the synchronous belt; the locking device is arranged on the side of the synchronous wheel away from the turbine, and the turbine drives the synchronous wheel to rotate through the locking device.

[0009] Preferably, the control device includes a first pipeline, a second pipeline, a first switch valve and a second switch valve; the first pipeline is vertically arranged in the side plate shell; the second pipeline is a semicircular structure, both ends of the second pipeline are connected to the side wall of the first pipeline, and the turbine is arranged on the second pipeline; the first switch valve is arranged on the first pipeline between the two connection points of the second pipeline and the first pipeline; the second switch valve is arranged on the second pipeline.

[0010] Preferably, the locking device includes a locking rod, a disc and a guide sleeve; the cross-sectional shape of the locking rod is a non-circular structure, the locking rod is horizontally arranged on the side of the synchronous wheel away from the turbine, the synchronous wheel is provided with a through groove along its own axis, the cross-sectional shape of the through groove is consistent with the cross-sectional shape of the locking rod, and the end face of the locking rod close to the turbine is provided with a snap-fitting groove, which can be snap-fitted with the output end of the turbine; the disc is fixedly arranged on the end of the locking rod away from the synchronous wheel; the guide sleeve is arranged on the side of the locking rod away from the synchronous wheel, the disc is slidably arranged in the guide sleeve, an electromagnet is provided on the side of the guide sleeve away from the disc, and a magnetic pole block is provided on the side of the disc away from the locking rod.

[0011] Preferably, the rotating device includes a rotary driver, a transmission wheel and a transmission belt; the rotary driver is arranged above the side plate shell, and the output end of the rotary driver is vertically downward; there are multiple transmission wheels, and the transmission wheels are evenly arranged along the length direction of the side plate shell, the rotating plate is located below the transmission plate, the transmission wheel can drive the rotating plate to rotate, and the rotary driver is fixedly connected to one of the transmission wheels; the transmission belt is mounted on the transmission wheel, and the transmission belt cooperates with the transmission wheel for transmission.

[0012] Preferably, the rotating device also includes a limiting device, which includes an activation plate, a limiting plate, a guide rod, a spring and an activation rod; the activation rod is fixedly arranged on the peripheral wall of the transmission wheel, and the activation rod extends downward along the height direction of the side plate shell; the activation plate is movably arranged on the side plate shell along the height direction of the side plate shell, and the activation rod can press the activation plate; the guide rod is fixedly arranged at the lower part of the activation plate along the height direction of the side plate shell, and the guide rod is slidably fitted with the side plate shell; the limiting plate is fixedly arranged at the bottom of the guide rod, and there is a first gap between the activation plate and the upper part of the side plate shell; the spring is arranged in the gap.

[0013] Preferably, the rotating device also includes a driving wheel, a accommodating groove, an extension shaft and a coil spring; the driving wheel is rotatably arranged below the driving wheel along the axis of the driving wheel; the accommodating groove is opened at the upper part of the driving wheel along the axis of the driving wheel; the extension shaft is fixedly arranged at the bottom of the driving wheel, and the extension shaft extends into the accommodating groove, and there is a second gap between the side wall of the extension shaft and the inner wall of the accommodating groove; the coil spring is arranged in the second gap.

[0014] Preferably, the rotating device also includes a gravity monitoring device, and the gravity monitoring device also includes a pressure sensor; the pressure sensor is arranged below the driving wheel, and there is a gap between the bottom of the rotating plate and the side plate shell. A controller is provided on one side of the pressure sensor, and the pressure sensor controls the start of the rotating drive through the controller.

[0015] Preferably, the gravity monitoring device also includes a sphere and a pressure plate; a plurality of ball grooves are provided at the bottom of the driving wheel, and the plurality of ball grooves are evenly arranged at the bottom of the driving wheel around the axis of the driving wheel, and the sphere is rotatably arranged in the ball groove; the pressure plate is arranged below the sphere, the pressure plate is in contact with the sphere, and the bottom of the pressure plate is in contact with the upper part of the pressure sensor.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention is provided with a rotating plate, a cleaning rod, a cleaning member, a rotating device, a rack, a first gear and a driving device. When the rotating plate is in a stationary state, the width direction of the rotating plate is parallel to the length direction of the side plate housing. After long-term use, frost will appear on the side of the rotating plate close to the article. The rotating device drives the rotating plate to rotate 180 degrees. Then the driving device is activated, and the driving device drives the cleaning rod to move along the height direction of the side plate housing. At this time, the first gear provided on the cleaning rod and the rack provided on the side plate housing are relatively moved. The rack can drive the first gear to rotate, so that the cleaning member provided on the cleaning rod is also driven to rotate. Since the cleaning member can contact the side wall of the rotating plate, when the cleaning member rotates, the cleaning member can remove the frost on the side wall of the rotating plate. As the driving device drives the cleaning rod to continue to descend, the rotating cleaning member can clean the entire side wall of the rotating plate. The cleaned crushed ice falls to the lower part of the side plate housing, thereby preventing the crushed ice from falling on the side of the article. Otherwise, the crushed ice will stick to the article. At the same time, the situation of stopping the machine for cleaning is avoided, thereby ensuring normal production and life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a three-dimensional schematic diagram of a defrosting device for a frost-free uniform temperature air-cooled display cabinet.

[0019] Figure 2 It is a frost-free uniform temperature air-cooled display cabinet Figure 1 A local enlarged schematic diagram of point A in the middle.

[0020] Figure 3 The present invention is a three-dimensional schematic diagram of a frost-free uniform temperature air-cooled display cabinet with part of the side panel shell removed.

[0021] Figure 4 The present invention is a three-dimensional schematic diagram of a frost-free uniform temperature air-cooled display cabinet with the side panel shell removed.

[0022] Figure 5 It is a frost-free uniform temperature air-cooled display cabinet Figure 4 A partial enlarged schematic diagram of point B in the middle.

[0023] Figure 6 The present invention is a three-dimensional schematic diagram of a frost-free uniform temperature air-cooled display cabinet with part of the drive device and side panel housing removed.

[0024] Figure 7 The present invention is a three-dimensional schematic diagram of a rotating plate of a frost-free uniform temperature air-cooled display cabinet provided with a rotating device with a synchronous belt removed.

[0025] Figure 8 The present invention is a three-dimensional schematic diagram of a transmission wheel of a frost-free uniform temperature air-cooled display cabinet provided with a limit device, a rotary driver, a pressure sensor and a drive wheel.

[0026] Figure 9 It is a frost-free uniform temperature air-cooled display cabinet Figure 8 A partial enlarged schematic diagram of point C in the middle.

[0027] Figure 10 The present invention is a three-dimensional schematic diagram of the rotating device of a frost-free uniform temperature air-cooled display cabinet with the rotary drive and transmission belt removed.

[0028] Figure 11 It is a frost-free uniform temperature air-cooled display cabinet Figure 10 Schematic cross-sectional view at DD in the middle.

[0029] Figure 12 It is a frost-free uniform temperature air-cooled display cabinet Figure 6 A partial enlarged schematic diagram of point E in the middle.

[0030] Figure 13 It is an overall three-dimensional schematic diagram of a frost-free uniform temperature air-cooled display cabinet.

[0031] The numbers in the figure are:

[0032] 1-side panel housing; 2-defrosting device; 21-rotating plate; 22-cleaning rod; 221-cleaning member; 23-rotating device; 231-rotating drive; 232-transmission wheel; 233-transmission belt; 234-driving wheel; 2341-accommodating groove; 2342-extension shaft; 2343-coil spring; 235-gravity monitoring device; 2351-pressure sensor; 2352-sphere; 2353-pressure plate; 236-limiting device; 2361-activation plate; 2362-limiting plate; 23 63-guide rod; 2364-spring; 2365-activation rod; 24-rack; 25-first gear; 251-second gear; 252-extension plate; 26-drive device; 261-control device; 2611-first pipeline; 2612-second pipeline; 2613-first switching valve; 2614-second switching valve; 262-turbine; 263-synchronizing wheel; 264-synchronizing belt; 265-locking device; 2651-locking rod; 2652-disc; 2653-guide sleeve. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Reference Figure 1-Figure 3 and Figure 13: A frost-free uniform temperature air-cooled display cabinet, comprising a side panel shell 1 and a defrost device 2; the defrost device 2 comprises a rotating plate 21, a cleaning rod 22, a cleaning member 221, a rotating device 23, a rack 24, a first gear 25 and a driving device 26; a plurality of rotating plates 21 are provided, and the rotating plates 21 can be rotatably arranged on the side panel shell 1 along the length direction of the side panel shell 1, and the side of the rotating plate 21 in the width direction of the side panel shell 1 is used for storing items; the rotating device 23 is arranged above the rotating plate 21, and the rotating device 23 can drive the rotating plate 21 to rotate; the driving device 26 is arranged on the side of the rotating plate 21 away from the items. The driving device 26 is powered by flowing coolant; the cleaning rod 22 is rotatably arranged on the driving device 26 along the length direction of the side plate shell 1, and the driving device 26 is used to drive the cleaning rod 22 to move along the height direction of the side plate shell 1; the cleaning member 221 is fixedly arranged on the cleaning rod 22, and the cleaning member 221 can contact the side wall of the rotating plate 21; the rack 24 is fixedly arranged on the side plate shell 1 on the side of the rotating plate 21 away from the object along the height direction of the side plate shell 1; the first gear 25 is fixedly arranged on the cleaning rod 22 on one side of the rack 24 along the axis of the cleaning rod 22, and the rack 24 can drive the first gear 25 to rotate.

[0035] Frozen items are stored on one side of the side panel housing 1, and the defrosting device 2 is arranged in the side panel housing 1. When the rotating plate 21 is in a stationary state, the width direction of the rotating plate 21 is parallel to the length direction of the side panel housing 1. After a long period of use, frost will appear on the side of the rotating plate 21 close to the items. The rotating device 23 drives the rotating plate 21 to rotate 180 degrees, and then the driving device 26 is activated. Since the display cabinet has its own coolant circulation for refrigeration, when the coolant flows, it can provide a power source to the driving device 26. The driving device 26 drives the cleaning rod 22 to move the cleaning rod 22 along the height direction of the side panel housing 1. At this time, the first gear 25 arranged on the cleaning rod 22 is aligned with the gear 26 arranged on the side panel housing 1. The rack 24 moves relative to each other, and the rack 24 can drive the first gear 25 to rotate, so that the cleaning member 221 provided on the cleaning rod 22 is also driven to rotate. Since the cleaning member 221 can contact the side wall of the rotating plate 21, when the cleaning member 221 rotates, the cleaning member 221 can remove the frost on the side wall of the rotating plate 21. As the driving device 26 drives the cleaning rod 22 to continue to descend, the rotating cleaning member 221 can clean the entire side wall of the rotating plate 21, and the cleaned crushed ice falls to the lower part of the side plate shell 1, so that the crushed ice can be prevented from falling on the side of the object, otherwise the crushed ice will stick to the object, and the situation of stopping the machine for cleaning is avoided, thereby ensuring normal production and life.

[0036] Reference Figure 12: The defrost device 2 also includes a second gear 251 and an extension plate 252; the extension plate 252 is arranged on the driving device 26 on one side of the first gear 25, and the extension plate 252 extends toward the rack 24; the second gear 251 is rotatably arranged on the extension plate 252, and the two sides of the second gear 251 are respectively engaged with the first gear 25 and the rack 24, and the diameter of the second gear 251 is larger than the diameter of the first gear 25.

[0037] When the driving device 26 drives the cleaning rod 22 to move along the height direction of the side plate shell 1, since the two sides of the second gear 251 are respectively engaged with the first gear 25 and the rack 24, during the descending process of the cleaning rod 22, the second gear 251 rotates under the action of the rack 24, thereby causing the first gear 25 to rotate. Since the diameter of the second gear 251 is greater than the diameter of the first gear 25, the rotation speed of the first gear 25 will be greater than the second gear 251, thereby enabling the cleaning member 221 provided on the cleaning rod 22 to better clean the frost on the side wall of the rotating plate 21.

[0038] Reference Figure 1-Figure 5 : The driving device 26 includes a control device 261, a turbine 262, a synchronous wheel 263, a synchronous belt 264 and a locking device 265; the control device 261 is arranged on the side of the side plate housing 1 away from the object, and the control device 261 can be driven by the flowing coolant; the turbine 262 is arranged on the control device 261, and the control device 261 drives the turbine 262 to rotate; there are two synchronous wheels 263, and the two synchronous wheels 263 are arranged along the height direction of the side plate housing 1, one of the synchronous wheels 263 is located on one side of the turbine 262 and can be driven to rotate by the turbine 262; the two ends of the synchronous belt 264 are respectively mounted on the two synchronous wheels 263, the synchronous belt 264 and the synchronous wheel 263 are matched for transmission, and the cleaning rod 22 is fixedly arranged on the synchronous belt 264; the locking device 265 is arranged on the side of the synchronous wheel 263 away from the turbine 262, and the turbine 262 drives the synchronous wheel 263 to rotate through the locking device 265.

[0039] When the control device 261 is started, the turbine 262 can be driven to rotate, and the locking device 265 is activated. The locking device 265 locks the turbine 262 and the synchronous wheel 263, and the turbine 262 drives the synchronous wheel 263 to rotate. Through the transmission of the synchronous belt 264, all the synchronous wheels 263 are driven to rotate. It is worth noting that there are two driving devices 26. This is because the cleaning rod 22 needs to rise again after descending, so that the cleaning member 221 can clean the frost on the side wall of the rotating plate 21. When one of the driving devices 26 is in operation, the other driving device 26 is in a stationary state, that is, the locking device 265 in the driving device 26 in operation is in a locked state, and the synchronous wheel 263 in the other driving device 26 and the output shaft of the turbine 262 are in a relative rotation state.

[0040] Reference Figure 2 and Figure 3 : The control device 261 includes a first pipeline 2611, a second pipeline 2612, a first switch valve 2613 and a second switch valve 2614; the first pipeline 2611 is vertically arranged in the side plate shell 1; the second pipeline 2612 is a semicircular structure, and both ends of the second pipeline 2612 are connected to the side wall of the first pipeline 2611, and the turbine 262 is arranged on the second pipeline 2612; the first switch valve 2613 is arranged on the first pipeline 2611 between the two connection points of the second pipeline 2612 and the first pipeline 2611; the second switch valve 2614 is arranged on the second pipeline 2612.

[0041] When the rotating device 23 drives the rotating plate 21 to rotate, the first switch valve 2613 is closed and the second switch valve 2614 is opened. The coolant in the first pipeline 2611 is circulated through the second pipeline 2612, thereby driving the turbine 262 on the second pipeline 2612 to rotate. When the turbine 262 is not required to rotate, the second switch valve 2614 is closed and the first switch valve 2613 is in the open state. The coolant will not flow through the second pipeline 2612.

[0042] Reference Figure 3 and Figure 5: The locking device 265 includes a locking rod 2651, a disc 2652 and a guide sleeve 2653; the cross-sectional shape of the locking rod 2651 is a non-circular structure, the locking rod 2651 is horizontally arranged on the side of the synchronous wheel 263 away from the turbine 262, the synchronous wheel 263 is provided with a through groove along its own axis, the cross-sectional shape of the through groove is consistent with the cross-sectional shape of the locking rod 2651, and the end face of the locking rod 2651 close to the turbine 262 is provided with a snap-fit groove, which can be snap-fitted with the output end of the turbine 262; the disc 2652 is fixedly arranged on the end of the locking rod 2651 away from the synchronous wheel 263; the guide sleeve 2653 is arranged on the side of the locking rod 2651 away from the synchronous wheel 263, and the disc 2652 is slidably arranged in the guide sleeve 2653, and an electromagnet is provided on the side of the guide sleeve 2653 away from the disc 2652, and a magnetic pole block is provided on the side of the disc 2652 away from the locking rod 2651.

[0043] Since the polarity of the magnetic pole block is fixed, the magnetic pole of the electromagnet can be changed to attract and push away the magnetic pole block. When locking is required, the magnetic pole of the electromagnet is the same as the magnetic pole of the magnetic pole block, the disc 2652 slides out of the guide sleeve 2653, and the snap-in groove on the locking rod 2651 is snap-fitted with the output end of the turbine 262. When contact locking is required, the magnetic pole of the electromagnet is changed, and the magnetic pole of the electromagnet is opposite to the magnetic pole of the magnetic pole block, so that the electromagnet will attract the magnetic pole block.

[0044] Reference Figure 3 and Figure 6 : The rotating device 23 includes a rotary driver 231, a transmission wheel 232 and a transmission belt 233; the rotary driver 231 is arranged above the side plate shell 1, and the output end of the rotary driver 231 is vertically downward; there are multiple transmission wheels 232, and the transmission wheels 232 are evenly arranged along the length direction of the side plate shell 1. The rotating plate 21 is located below the transmission plate. The transmission wheel 232 can drive the rotating plate 21 to rotate, and the rotary driver 231 is fixedly connected to one of the transmission wheels 232; the transmission belt 233 is sleeved on the transmission wheel 232, and the transmission belt 233 cooperates with the transmission wheel 232 for transmission.

[0045] When the rotating plate 21 needs to be driven to rotate, the rotary driver 231 is started, and the rotary driver 231 drives the transmission wheels 232 to rotate. Through the transmission of the transmission belt 233, all the transmission wheels 232 rotate, so that the rotating plate 21 can rotate synchronously.

[0046] Reference Figure 7-Figure 9: The rotating device 23 also includes a limiting device 236, which includes an activation plate 2361, a limiting plate 2362, a guide rod 2363, a spring 2364 and an activation rod 2365; the activation rod 2365 is fixedly arranged on the peripheral wall of the transmission wheel 232, and the activation rod 2365 extends downward along the height direction of the side panel shell 1; the activation plate 2361 is movably arranged on the side panel shell 1 along the height direction of the side panel shell 1, and the activation rod 2365 can press the activation plate 2361; the guide rod 2363 is fixedly arranged at the lower part of the activation plate 2361 along the height direction of the side panel shell 1, and the guide rod 2363 slides with the side panel shell 1; the limiting plate 2362 is fixedly arranged at the bottom of the guide rod 2363, and there is a first gap between the activation plate 2361 and the upper part of the side panel shell 1; the spring 2364 is arranged in the gap.

[0047] When the transmission wheel 232 rotates, the activation rod 2365 rotates with the transmission wheel 232, and the activation rod 2365 presses the activation plate 2361. The activation plate 2361 drives the guide rod 2363 to slide along the height direction of the side plate shell 1, so that the limit plate 2362 at the bottom of the guide rod 2363 can slide. The limit plate 2362 limits the side of the rotating plate 21 to prevent the rotating plate 21 from deflecting when it is stationary.

[0048] Reference Figure 11 : The rotating device 23 also includes a driving wheel 234, a receiving groove 2341, an extension shaft 2342 and a coil spring 2343; the driving wheel 234 is rotatably arranged below the driving wheel 232 along the axis of the driving wheel 232; the receiving groove 2341 is opened at the upper part of the driving wheel 234 along the axis of the driving wheel 234; the extension shaft 2342 is fixedly arranged at the bottom of the driving wheel 232, and the extension shaft 2342 extends into the receiving groove 2341, and there is a second gap between the side wall of the extension shaft 2342 and the inner wall of the receiving groove 2341; the coil spring 2343 is arranged in the second gap.

[0049] When the activating rod 2365 leaves the activating plate 2361, the compressed spring 2364 drives the activating plate 2361 to bounce up, and the limiting plate 2362 loses its limit on the rotatable plate 21. At the same time, since the transmission wheel 232 and the driving wheel 234 are connected by the coil spring 2343, it is guaranteed that the rotatable plate 21 can rotate normally.

[0050] Reference Figure 10 and Figure 11 : The rotating device 23 also includes a gravity monitoring device 235, and the gravity monitoring device 235 also includes a pressure sensor 2351; the pressure sensor 2351 is arranged below the driving wheel 234, and there is a gap between the bottom of the rotating plate 21 and the side plate shell 1. A controller is provided on one side of the pressure sensor 2351, and the pressure sensor 2351 controls the rotation driver 231 to start through the controller.

[0051] As more and more frost accumulates on the rotating plate 21, the weight of the rotating plate 21 gradually increases. Since there is a gap between the lower part of the rotating plate 21 and the side plate shell 1, the pressure sensor 2351 can monitor the pressure. When the pressure is greater than the preset pressure value, the pressure sensor 2351 controls the rotation driver 231 to start through the controller, and the rotation driver 231 drives the rotating plate 21 to rotate.

[0052] Reference Figure 11 : The gravity monitoring device 235 also includes a sphere 2352 and a pressure plate 2353; a plurality of ball grooves are opened at the bottom of the driving wheel 234, and the plurality of ball grooves are evenly arranged at the bottom of the driving wheel 234 around the axis of the driving wheel 234, and the sphere 2352 is rotatably arranged in the ball groove; the pressure plate 2353 is arranged below the sphere 2352, the pressure plate 2353 is in contact with the sphere 2352, and the bottom of the pressure plate 2353 is in contact with the upper part of the pressure sensor 2351.

[0053] Since direct contact between the driving wheel 234 and the pressure sensor 2351 will increase the friction on the surface of the pressure sensor 2351, long-term use will cause wear of the pressure sensor 2351. The friction of the driving wheel 234 is reduced by providing the sphere 2352. At the same time, since the pressure surface of the sphere 2352 is very small, direct contact with the pressure sensor 2351 will cause damage to the surface of the pressure sensor 2351. In this way, the pressure plate 2353 can protect the pressure sensor 2351 from being crushed by the sphere 2352.

[0054] The above embodiments merely represent one or several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A frost-free, uniform-temperature air-cooled display cabinet, comprising a side panel housing (1) and a defrosting device (2); It is characterized in that The defrosting device (2) comprises a rotating plate (21), a cleaning rod (22), a cleaning member (221), a rotating device (23), a rack (24), a first gear (25) and a driving device (26); A plurality of rotating plates (21) are provided, and the rotating plates (21) are rotatably arranged evenly on the side plate housing (1) along the length direction of the side plate housing (1), and one side of the rotating plates (21) in the width direction of the side plate housing (1) is used for storing items; The rotating device (23) is arranged above the rotating plate (21), and the rotating device (23) can drive the rotating plate (21) to rotate; The driving device (26) is arranged on a side of the rotating plate (21) away from the object, and the driving device (26) is powered by flowing coolant; The cleaning rod (22) is rotatably arranged on a driving device (26) along the length direction of the side plate housing (1), and the driving device (26) is used to drive the cleaning rod (22) to move along the height direction of the side plate housing (1); The cleaning member (221) is fixedly arranged on the cleaning rod (22), and the cleaning member (221) can contact the side wall of the rotating plate (21); The rack (24) is fixedly arranged on the side plate housing (1) on the side of the rotating plate (21) away from the object along the height direction of the side plate housing (1); The first gear (25) is fixedly arranged on the cleaning rod (22) on one side of the rack (24) along the axis of the cleaning rod (22), and the rack (24) can drive the first gear (25) to rotate.

2. The frost-free uniform temperature air-cooled display cabinet according to claim 1, characterized in that: The defrosting device (2) further includes a second gear (251) and an extension plate (252); The extension plate (252) is arranged on the driving device (26) on one side of the first gear (25), and the extension plate (252) extends toward the rack (24); The second gear (251) is rotatably arranged on the extension plate (252), and both sides of the second gear (251) are respectively engaged with the first gear (25) and the rack (24), and the diameter of the second gear (251) is larger than the diameter of the first gear (25).

3. The frost-free uniform temperature air-cooled display cabinet according to claim 1, characterized in that: The driving device (26) includes a control device (261), a turbine (262), a synchronous wheel (263), a synchronous belt (264) and a locking device (265); The control device (261) is arranged on a side of the side plate housing (1) away from the object, and the control device (261) can be driven by the flowing coolant; The turbine (262) is arranged on the control device (261), and the control device (261) drives the turbine (262) to rotate; Two synchronous wheels (263) are provided, and the two synchronous wheels (263) are arranged along the height direction of the side plate housing (1), and one of the synchronous wheels (263) is located on one side of the turbine (262) and can be driven to rotate by the turbine (262); The two ends of the synchronous belt (264) are respectively sleeved on the two synchronous wheels (263), the synchronous belt (264) and the synchronous wheels (263) are in transmission cooperation, and the cleaning rod (22) is fixedly arranged on the synchronous belt (264); The locking device (265) is arranged on a side of the synchronous wheel (263) away from the turbine (262), and the turbine (262) drives the synchronous wheel (263) to rotate through the locking device (265).

4. The frost-free uniform temperature air-cooled display cabinet according to claim 3, characterized in that: The control device (261) includes a first pipeline (2611), a second pipeline (2612), a first switch valve (2613) and a second switch valve (2614); The first pipeline (2611) is vertically arranged in the side plate housing (1); The second pipeline (2612) has a semicircular structure, both ends of the second pipeline (2612) are connected to the side walls of the first pipeline (2611), and the turbine (262) is arranged on the second pipeline (2612); The first switch valve (2613) is provided on the first pipeline (2611) between two connection points of the second pipeline (2612) and the first pipeline (2611); The second switch valve (2614) is provided on the second pipeline (2612).

5. The frost-free uniform temperature air-cooled display cabinet according to claim 3, characterized in that: The locking device (265) includes a locking rod (2651), a disc (2652) and a guide sleeve (2653); The locking rod (2651) has a non-circular cross-sectional shape. The locking rod (2651) is horizontally arranged on a side of the synchronous wheel (263) away from the turbine (262). The synchronous wheel (263) is provided with a through groove along its own axis. The cross-sectional shape of the through groove matches the cross-sectional shape of the locking rod (2651). The end surface of the locking rod (2651) close to the turbine (262) is provided with a snap-fit groove. The snap-fit groove can be snap-fitted with the output end of the turbine (262). The disc (2652) is fixedly arranged on one end of the locking rod (2651) away from the synchronous wheel (263); The guide sleeve (2653) is arranged on a side of the locking rod (2651) away from the synchronous wheel (263), the disc (2652) is slidably arranged in the guide sleeve (2653), an electromagnet is arranged on a side of the guide sleeve (2653) away from the disc (2652), and a magnetic pole block is arranged on a side of the disc (2652) away from the locking rod (2651).

6. The frost-free uniform temperature air-cooled display cabinet according to claim 1, characterized in that: The rotating device (23) includes a rotary driver (231), a transmission wheel (232) and a transmission belt (233); The rotary driver (231) is arranged above the side plate housing (1), and the output end of the rotary driver (231) is vertically downward; A plurality of transmission wheels (232) are provided, and the transmission wheels (232) are evenly arranged along the length direction of the side plate housing (1). The rotating plate (21) is located below the transmission plate. The transmission wheels (232) can drive the rotating plate (21) to rotate, and the rotary driver (231) is fixedly connected to one of the transmission wheels (232). The transmission belt (233) is sleeved on the transmission wheel (232), and the transmission belt (233) and the transmission wheel (232) are matched for transmission.

7. The frost-free, uniform temperature air-cooled display cabinet according to claim 6, characterized in that: The rotating device (23) further includes a limiting device (236), and the limiting device (236) includes an activation plate (2361), a limiting plate (2362), a guide rod (2363), a spring (2364) and an activation rod (2365); The activation rod (2365) is fixedly arranged on the peripheral wall of the transmission wheel (232), and the activation rod (2365) extends downward along the height direction of the side plate housing (1); The activation plate (2361) is movably arranged on the side plate housing (1) along the height direction of the side plate housing (1), and the activation rod (2365) can press the activation plate (2361); The guide rod (2363) is fixedly arranged at the lower part of the activation plate (2361) along the height direction of the side plate housing (1), and the guide rod (2363) is slidably matched with the side plate housing (1); The limiting plate (2362) is fixedly arranged at the bottom of the guide rod (2363), and a first gap exists between the activation plate (2361) and the upper portion of the side plate housing (1); A spring (2364) is disposed within the gap.

8. The frost-free, uniform temperature air-cooled display cabinet according to claim 7, characterized in that: The rotating device (23) further includes a driving wheel (234), a receiving groove (2341), an extension shaft (2342) and a coil spring (2343); The driving wheel (234) is rotatably arranged below the transmission wheel (232) along the axis of the transmission wheel (232); The receiving groove (2341) is opened on the upper part of the driving wheel (234) along the axis of the driving wheel (234); The extension shaft (2342) is fixedly arranged at the bottom of the transmission wheel (232), and the extension shaft (2342) extends into the receiving groove (2341), and a second gap exists between the side wall of the extension shaft (2342) and the inner wall of the receiving groove (2341); The coil spring (2343) is disposed in the second gap.

9. The frost-free, uniform temperature air-cooled display cabinet according to claim 8, characterized in that: The rotating device (23) further includes a gravity monitoring device (235), and the gravity monitoring device (235) further includes a pressure sensor (2351); The pressure sensor (2351) is arranged below the driving wheel (234), and a gap is provided between the bottom of the rotating plate (21) and the side plate housing (1). A controller is provided on one side of the pressure sensor (2351), and the pressure sensor (2351) controls the rotation driver (231) to start via the controller.

10. The frost-free, uniform temperature air-cooled display cabinet according to claim 9, characterized in that: The gravity monitoring device (235) further includes a sphere (2352) and a pressure plate (2353); The bottom of the driving wheel (234) is provided with a plurality of ball grooves, which are evenly arranged around the axis of the driving wheel (234) at the bottom of the driving wheel (234), and the balls (2352) are rotatably arranged in the ball grooves; The pressure plate (2353) is arranged below the sphere (2352), the pressure plate (2353) contacts the sphere (2352), and the bottom of the pressure plate (2353) contacts the upper part of the pressure sensor (2351).

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