A sterilization device and method suitable for fruit cold chain storage

Abstract

The application relates to the technical field of sterilization devices, in particular to a sterilization device and method suitable for fruit cold-chain storage, which comprises an air inlet channel, an activated carbon adsorption assembly, a sterilization channel, an upward air outlet channel, an air inlet fan, an air outlet fan and a plurality of ultraviolet sterilization assemblies; the ultraviolet sterilization assembly comprises a mounting rack, a sliding box, a displacement driving mechanism, a rotating ring, a plurality of strip wipers, a rotating driving mechanism and an ultraviolet sterilization lamp; the displacement driving mechanism drives the sliding box and the rotating ring to reciprocate along the lamp tube axis of the ultraviolet sterilization lamp, meanwhile, the rotating driving mechanism drives the rotating ring and the strip wipers to rotate around the lamp tube, so that the strip wipers axially and circumferentially wipe the outer surface of the lamp tube of the ultraviolet sterilization lamp, and dirt is automatically removed, thereby solving the problem that the outer surface of the lamp tube of the ultraviolet sterilization lamp of the existing sterilization device is prone to attaching dirt and cannot be automatically cleaned, and the sterilization efficiency is reduced.

Description

Technical Field

[0001] This invention relates to the field of sterilization equipment technology, and in particular to a sterilization device and method suitable for cold chain storage of fruits. Background Technology

[0002] Fruit cold chain storage refers to a modern logistics system in which fruits are kept at a specified low temperature throughout the entire distribution process, from harvesting, pre-cooling, refrigeration, transportation to sales. This inhibits fruit respiration, slows down metabolism, and reduces moisture evaporation, thereby extending shelf life and freshness. Cold storage facilities, as the core of cold chain storage, are still susceptible to the growth of many spoilage bacteria and molds, even though their growth is slow. This is especially true in poorly ventilated areas such as gaps and corners in the stacks, where mold spores easily settle and accumulate, spreading through the air to infect the fruit surface and leading to the occurrence and spread of post-harvest diseases. Therefore, continuous and effective sterilization of the air environment within cold storage is a key technical aspect in reducing fruit spoilage and extending storage periods.

[0003] Currently, air sterilization devices used in cold storage mostly employ a recirculating air operating mode. A typical structure includes a housing with an air inlet and an air outlet. Inside the housing, ultraviolet germicidal lamps and a fan are installed in the air ducts. During operation, the fan drives air from inside the cold storage into the housing through the air inlet, flowing through the sterilization area where the ultraviolet germicidal lamps are located for irradiation and sterilization. The sterilized air is then discharged back into the cold storage through the air outlet. Through continuous circulation, the concentration of microorganisms in the entire cold storage space is gradually reduced, achieving indirect protection for stored fruits.

[0004] However, in actual long-term operation, dirt easily accumulates on the outer surface of the UV germicidal lamp tube, which leads to a decrease in UV transmittance and makes the actual sterilization efficiency of the UV germicidal lamp far lower than the nominal value, resulting in a reduction in sterilization effect. Summary of the Invention

[0005] The purpose of this invention is to provide a sterilization device and method suitable for cold chain storage of fruits, aiming to solve the problem that the outer surface of the ultraviolet germicidal lamp tube of existing sterilization devices is prone to dirt accumulation and cannot be automatically cleaned, resulting in reduced sterilization efficiency.

[0006] To achieve the above objectives, the present invention provides a sterilization device suitable for cold chain storage of fruits, including an air inlet channel, an activated carbon adsorption component, a sterilization channel, an upward air outlet channel, an inlet fan, an outlet fan, and multiple ultraviolet sterilization components. The activated carbon adsorption component is fixedly disposed on one side of the air inlet channel and communicates with the air inlet channel; the sterilization channel is fixedly disposed on one side of the activated carbon adsorption component and communicates with the activated carbon adsorption component; the upward air outlet channel is fixedly disposed on one side of the sterilization channel and communicates with the sterilization channel; the inlet fan is fixedly disposed in the air inlet channel; the outlet fan is fixedly disposed in the upward air outlet channel; and multiple ultraviolet sterilization components are disposed in the sterilization channel. The ultraviolet sterilization assembly includes a mounting frame, a sliding box, a displacement drive mechanism, a rotating ring, multiple strip wipers, a rotation drive mechanism, and an ultraviolet sterilization lamp. The mounting frame is fixedly installed on the inner wall of the sterilization channel; the sliding box is slidably installed on the mounting frame; the displacement driving mechanism is installed on the mounting frame and is used to drive the sliding box to slide; the rotating ring is rotatably installed inside the sliding box; a plurality of strip wipes are installed on the rotating ring; the rotation driving mechanism is installed inside the sliding box and is used to drive the rotating ring to rotate; the ultraviolet germicidal lamp is installed on the mounting frame and passes through the rotating ring, and the outer wall of the ultraviolet germicidal lamp tube contacts the plurality of strip wipes.

[0007] The activated carbon adsorption assembly includes an adsorption channel, multiple guide rails, and multiple activated carbon filters. The adsorption channel is fixedly disposed between the air inlet channel and the sterilization channel, and is connected to the air inlet channel and the sterilization channel respectively; multiple guide rails are fixedly disposed on the front inner wall and the rear inner wall of the adsorption channel; an activated carbon filter is slidably disposed between each pair of corresponding guide rails.

[0008] The mounting frame includes a long slide rail and two lamp holders; The elongated slide is fixedly installed on the inner wall of the sterilization channel; the two lamp holders are fixedly installed on the elongated slide for installing the ultraviolet germicidal lamps.

[0009] The sliding box includes a mounting housing, two side blocks, two meshing blocks, and two screws; A guide groove is provided on both sides of the long slide; the mounting housing is located below the long slide; the two side blocks are respectively fixedly disposed on the side of the mounting housing; the two meshing blocks are respectively slidably disposed in the two side blocks and respectively inserted into the two guide grooves; the two screws are respectively rotatably connected to the two meshing blocks and respectively threadedly connected to the two side blocks, and respectively penetrate the two side blocks.

[0010] The displacement driving mechanism includes a slider, two clamps, a lead screw, and a first motor. The slider is slidably disposed within the elongated slide rail and located directly above the mounting housing; two clamps are fixedly disposed at the bottom of the slider, and the mounting housing is located between the two clamps; the lead screw is rotatably disposed on the elongated slide rail and threadedly connected to the slider; the first motor is fixedly disposed at one end of the elongated slide rail, and the output end of the first motor is fixedly connected to the lead screw.

[0011] The rotating ring includes a ring body and multiple clamping members; The ring body is rotatably disposed within the mounting housing; the ring body is provided with a plurality of axial mounting grooves equidistantly arranged around its circumference; each of the axial mounting grooves is provided with a clamping member; the axial mounting grooves are used to install the strip-shaped wiper, and are clamped by the clamping member.

[0012] The clamping element includes a radial clamping plate and multiple springs; The radial abutment plate is slidably disposed within the axial mounting groove; one end of each of the plurality of springs is fixedly connected to the radial abutment plate, and the other end is fixedly connected to the inner wall of the axial mounting groove and is located within the axial mounting groove.

[0013] The rotation drive mechanism includes a second motor, a gear, and a gear ring; The second motor is fixedly installed inside the mounting housing; the gear is fixedly installed at the output end of the second motor; the gear ring is fixedly installed at one end of the ring body and meshes with the gear.

[0014] The strip wiper includes a mounting plate and bristles; The bristles are fixedly installed at the bottom of the mounting plate. The overall cross-sectional shape of the strip brush is T-shaped, with the mounting plate forming the horizontal part of the T-shape and the bristles forming the vertical part of the T-shape.

[0015] The present invention also provides a sterilization method suitable for cold chain storage of fruits, comprising the following steps: Turn on the intake and exhaust fans to allow air to enter the cold storage through the air intake duct; Air flows through the activated carbon adsorption component, adsorbing and removing ethylene gas and odor molecules from the air, and intercepting some large dust particles and gaseous organic pollutants to reduce the scale buildup on the surface of the subsequent ultraviolet germicidal lamp tube. After adsorption treatment, the air enters the sterilization channel, where multiple ultraviolet germicidal lamps irradiate the air with ultraviolet light to sterilize it. The sterilized clean air is discharged upward through the upward air outlet channel, forming an airflow circulation that is far away from the air inlet of the air inlet channel; When it is necessary to clean the surface of the UV germicidal lamp tube, the displacement drive mechanism drives the sliding box to slide along the mounting frame, causing the rotating ring and strip wiper to move axially along the UV germicidal lamp tube; at the same time, the rotation drive mechanism drives the rotating ring to rotate, causing the strip wiper to rotate around the outer wall of the UV germicidal lamp tube, so as to perform axial and circumferential composite wiping cleaning on the surface of the UV germicidal lamp tube.

[0016] This invention discloses a sterilization device and method suitable for cold chain storage of fruits. The workflow is as follows: The inlet fan and outlet fan are activated. Air from the cold storage enters through the inlet channel, flows through the activated carbon adsorption component for adsorption of ethylene gas and odor molecules, and then enters the sterilization channel. Multiple ultraviolet sterilization components irradiate the air with ultraviolet light for sterilization. The sterilized clean air is discharged upwards through the upward-facing outlet channel, forming an airflow circulation away from the inlet of the inlet channel to avoid airflow short-circuiting. When cleaning the surface of the ultraviolet sterilizing lamp tube is required, the displacement drive mechanism drives the sliding box to slide along the mounting frame, causing the rotating ring and multiple strip wipers to move axially along the ultraviolet sterilizing lamp tube. Simultaneously, the rotation drive mechanism drives the rotating ring to rotate, causing the strip wipers to rotate around the outer wall of the ultraviolet sterilizing lamp tube, achieving axial and circumferential composite wiping and cleaning of the ultraviolet sterilizing lamp tube surface, automatically removing dirt adhering to the outer wall of the ultraviolet sterilizing lamp tube and maintaining sterilization efficiency. This solves the problem that the outer surface of the ultraviolet germicidal lamp tube in existing sterilization devices is prone to dirt accumulation and cannot be automatically cleaned, resulting in reduced sterilization efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention.

[0019] Figure 2 This is a structural schematic diagram of the first embodiment of the present invention from another angle.

[0020] Figure 3 This is a schematic diagram of the activated carbon adsorption component of the present invention.

[0021] Figure 4 This is a cross-sectional view of the activated carbon adsorption component of the present invention.

[0022] Figure 5 This is a schematic diagram of the sterilization channel and ultraviolet sterilization component of the present invention.

[0023] Figure 6This is a schematic diagram of the structure of the ultraviolet sterilization component of the present invention.

[0024] Figure 7 This is a cross-sectional view of the ultraviolet sterilization component of the present invention.

[0025] Figure 8 yes Figure 7 A magnified view of detail A.

[0026] Figure 9 This is another cross-sectional view of the ultraviolet sterilization component of the present invention.

[0027] Figure 10 yes Figure 9 A magnified view of detail B.

[0028] Figure 11 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0029] 1-Air inlet channel, 2-Activated carbon adsorption component, 3-Sterilization channel, 4-Upward air outlet channel, 5-Inlet fan, 6-Outlet fan, 7-Ultraviolet sterilization component, 201-Adsorption channel, 202-Guide rail, 203-Activated carbon filter, 701-Mounting frame, 702-Sliding box, 703-Displacement drive mechanism, 704-Rotating ring, 705-Strip wiper, 706-Rotation drive mechanism, 707-Ultraviolet germicidal lamp, 70101-Long slide rail, 70102-Lamp holder, 7010101-Guide groove, 7 0201-Mounting housing, 70202-Side block, 70203-Meshing block, 70204-Screw, 70301-Slider, 70302-Clamping lug, 70303-Lead screw, 70304-First motor, 70401-Ring body, 70402-Clamping part, 7040101-Axial mounting groove, 7040201-Radial clamping plate, 7040202-Spring, 70501-Mounting plate, 70502-Brush bristles, 70601-Second motor, 70602-Gear, 70603-Gear ring. Detailed Implementation

[0030] The first embodiment of this application is as follows: Please see Figures 1-10 ,in, Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention. Figure 2 This is a structural schematic diagram of the first embodiment of the present invention from another angle. Figure 3 This is a schematic diagram of the activated carbon adsorption component of the present invention. Figure 4 This is a cross-sectional view of the activated carbon adsorption component of the present invention. Figure 5 This is a schematic diagram of the sterilization channel and ultraviolet sterilization component of the present invention. Figure 6 This is a schematic diagram of the structure of the ultraviolet sterilization component of the present invention. Figure 7This is a cross-sectional view of the ultraviolet sterilization component of the present invention. Figure 8 yes Figure 7 A magnified view of detail A. Figure 9 This is another cross-sectional view of the ultraviolet sterilization component of the present invention. Figure 10 yes Figure 9 A magnified view of detail B.

[0031] This invention provides a sterilization device suitable for cold chain storage of fruits: it includes an air inlet channel 1, an activated carbon adsorption component 2, a sterilization channel 3, an upward air outlet channel 4, an inlet fan 5, an outlet fan 6, and multiple ultraviolet sterilization components 7; the ultraviolet sterilization component 7 includes a mounting frame 701, a sliding box 702, a displacement drive mechanism 703, a rotating ring 704, multiple strip wipers 705, a rotation drive mechanism 706, and ultraviolet sterilization lamps 707; the activated carbon adsorption component 2 includes an adsorption channel 201, multiple guide rails 202, and multiple activated carbon filters 203; the mounting frame 701 includes a long slide rail 70101 and two lamp holders 70102; the sliding box 702 includes a mounting housing 70201, two side blocks 70202, two meshing blocks 70203, and two screws 70204; the long slide rail 70101 has two sides... Each component is provided with a guide groove 7010101; the displacement drive mechanism 703 includes a slider 70301, two clamping ears 70302, a lead screw 70303, and a first motor 70304; the rotating ring 704 includes a ring body 70401 and multiple clamping parts 70402; the ring body 70401 is provided with multiple axial mounting grooves 7040101 circumferentially at equal intervals; the clamping parts 70402 include radial clamping plates 7040201 and multiple springs 7040202; the rotation drive mechanism 706 includes a second motor 70601, a gear 70602, and a gear ring 70603; the strip wiper 705 includes a mounting plate 70501 and bristles 70502; the aforementioned solution solves the problem that the outer surface of the ultraviolet germicidal lamp 707 in existing sterilization devices is prone to dirt accumulation and cannot be automatically cleaned, resulting in reduced sterilization efficiency.

[0032] Furthermore, the activated carbon adsorption component 2 is fixedly disposed on one side of the air inlet channel 1 and communicates with the air inlet channel 1; the sterilization channel 3 is fixedly disposed on one side of the activated carbon adsorption component 2 and communicates with the activated carbon adsorption component 2; the upward air outlet channel 4 is fixedly disposed on one side of the sterilization channel 3 and communicates with the sterilization channel 3; the inlet fan 5 is fixedly disposed within the air inlet channel 1; the outlet fan 6 is fixedly disposed within the upward air outlet channel 4; multiple ultraviolet sterilization components 7 are disposed within the sterilization channel 3; the mounting frame 701 is fixedly disposed on the inner wall of the sterilization channel 3; the sliding box The sliding box 702 is slidably mounted on the mounting frame 701; the displacement driving mechanism 703 is mounted on the mounting frame 701 and is used to drive the sliding box 702 to slide; the rotating ring 704 is rotatably mounted inside the sliding box 702; a plurality of strip wipes 705 are mounted on the rotating ring 704; the rotation driving mechanism 706 is mounted inside the sliding box 702 and is used to drive the rotating ring 704 to rotate; the ultraviolet germicidal lamp 707 is mounted on the mounting frame 701 and passes through the rotating ring 704, and the outer wall of the lamp tube of the ultraviolet germicidal lamp 707 contacts the plurality of strip wipes 705.

[0033] In this embodiment, the workflow is as follows: The inlet fan 5 and the outlet fan 6 are activated. Air from the cold storage enters through the inlet channel 1, flows through the activated carbon adsorption component 2 for adsorption of ethylene gas and odor molecules, and then enters the sterilization channel 3. Multiple ultraviolet sterilization components 7 irradiate the air with ultraviolet light for sterilization. The sterilized clean air is then discharged upwards through the upward-facing outlet channel 4, forming an airflow circulation away from the air inlet of the inlet channel 1 to avoid airflow short-circuiting. When it is necessary to clean the surface of the ultraviolet germicidal lamp 707, the… The displacement drive mechanism 703 drives the sliding box 702 to slide along the mounting frame 701, causing the rotating ring 704 and multiple strip wipers 705 to move axially along the lamp tube of the ultraviolet germicidal lamp 707. Simultaneously, the rotation drive mechanism 706 drives the rotating ring 704 to rotate, causing the strip wipers 705 to rotate around the outer wall of the lamp tube of the ultraviolet germicidal lamp 707. This achieves axial and circumferential composite wiping and cleaning of the lamp tube surface of the ultraviolet germicidal lamp 707, automatically removing dirt adhering to the outer wall of the lamp tube and maintaining sterilization efficiency. This solves the problem in existing sterilization devices where dirt easily adheres to the outer surface of the ultraviolet germicidal lamp 707 and cannot be automatically cleaned, leading to reduced sterilization efficiency.

[0034] Furthermore, the adsorption channel 201 is fixedly disposed between the air inlet channel 1 and the sterilization channel 3, and is connected to the air inlet channel 1 and the sterilization channel 3 respectively; multiple guide rails 202 are fixedly disposed on the front inner wall and the rear inner wall of the adsorption channel 201; an activated carbon filter screen 203 is slidably disposed between each pair of corresponding guide rails 202.

[0035] In this embodiment, after air enters the adsorption channel 201 from the air inlet channel 1, it passes through multiple layers of activated carbon filters 203 in sequence. The activated carbon filters 203 adsorb and intercept ethylene gas, odor molecules, and some large dust particles in the air. Each activated carbon filter 203 is slidably installed via two corresponding guide rails 202. When replacement or cleaning is required, the activated carbon filter 203 can be directly pulled out from the guide rails 202, achieving convenient disassembly and maintenance. Multiple activated carbon filters 203 are arranged sequentially along the airflow direction to form a multi-stage adsorption structure, improving the adsorption efficiency for harmful gases such as ethylene.

[0036] Furthermore, the elongated slide 70101 is fixedly installed on the inner wall of the sterilization channel 3; the two lamp holders 70102 are fixedly installed on the elongated slide 70101 for installing the ultraviolet germicidal lamp 707.

[0037] In this embodiment, the elongated slide 70101 is fixedly disposed on the inner wall of the sterilization channel 3 along the length direction of the sterilization channel 3, serving as the supporting foundation for the entire ultraviolet sterilization assembly 7; the two lamp holders 70102 are respectively fixedly disposed at both ends of the elongated slide 70101, and the two ends of the ultraviolet sterilization lamp 707 are respectively installed in the two lamp holders 70102, so that the lamp tube of the ultraviolet sterilization lamp 707 is suspended below the elongated slide 70101, so that the sliding box 702 and the rotating ring 704 and the strip wiper 705 on it can slide back and forth along the elongated slide 70101 on the lamp tube of the ultraviolet sterilization lamp 707 for cleaning.

[0038] Furthermore, a guide groove 7010101 is provided on both sides of the elongated slide 70101; the mounting housing 70201 is located below the elongated slide 70101; two side blocks 70202 are respectively fixedly disposed on the side of the mounting housing 70201; two meshing blocks 70203 are respectively slidably disposed in the two side blocks 70202 and respectively inserted into the two guide grooves 7010101; two screws 70204 are respectively rotatably connected to the two meshing blocks 70203 and respectively threadedly connected to the two side blocks 70202, and respectively penetrate the two side blocks 70202.

[0039] In this embodiment, during installation, the mounting housing 70201 is placed below the elongated slide rail 70101, with the two side blocks 70202 positioned on either side of the slide rail 70101. Then, the two screws 70204 are rotated, pushing the two engaging blocks 70203 to slide within the side blocks 70202 towards the elongated slide rail 70101. This causes the two engaging blocks 70203 to insert into the guide grooves 7010101 on either side of the elongated slide rail 70101, forming a sliding guide fit. The mounting housing 70201 is suspended below the elongated slide rail 70101 through the engagement of the engaging blocks 70203 with the guide grooves 7010101, and can move along... The elongated slide rail 70101 slides back and forth. When it is necessary to disassemble the sliding box 702, the two screws 70204 are rotated in the opposite direction, causing the two engaging blocks 70203 to slide away from the elongated slide rail 70101, so that the engaging blocks 70203 are disengaged from the guide groove 7010101, and the entire sliding box 702 can be removed from the elongated slide rail 70101. The purpose of disassembling the sliding box 702 is that when the ultraviolet germicidal lamp 707 needs to be replaced or maintained, the sliding box 702 is removed as a whole, so as to make room for disassembling the ultraviolet germicidal lamp 707 from the lamp holder 70102 and avoid the sliding box 702 interfering with the disassembly and assembly of the ultraviolet germicidal lamp 707.

[0040] Furthermore, the slider 70301 is slidably disposed within the elongated slide rail 70101 and located directly above the mounting housing 70201; two clamping ears 70302 are fixedly disposed at the bottom of the slider 70301, and the mounting housing 70201 is located between the two clamping ears 70302; the lead screw 70303 is rotatably disposed on the elongated slide rail 70101 and threadedly connected to the slider 70301; the first motor 70304 is fixedly disposed at one end of the elongated slide rail 70101, and the output end of the first motor 70304 is fixedly connected to the lead screw 70303.

[0041] In this embodiment, when it is necessary to drive the sliding box 702 to move along the lamp tube axis of the ultraviolet germicidal lamp 707, the first motor 70304 starts, driving the lead screw 70303 to rotate; the lead screw 70303 is threadedly engaged with the slider 70301, converting the rotational motion into linear motion, driving the slider 70301 to slide along the elongated slide rail 70101; the mounting housing 70201 is located between the two clamping ears 70302, which do not clamp the mounting housing 70201, but are located on both sides of the mounting housing 70201; when the slider 70301 slides along the elongated slide rail 70101, the two clamping ears 70302 move synchronously with the slider 70301, passing through one of them The clamps 70302 push the mounting housing 70201, thereby causing the entire sliding box 702, along with the rotating ring 704 and the strip wiper 705, to reciprocate along the lamp tube axis of the ultraviolet germicidal lamp 707, completing the wiping and cleaning of the entire length of the lamp tube of the ultraviolet germicidal lamp 707. Since the two clamps 70302 are only located on both sides of the mounting housing 70201 and do not clamp or fix the mounting housing 70201, when it is necessary to disassemble the sliding box 702, it is only necessary to move the mounting housing 70201 directly out from between the two clamps 70302, without disassembling the slider 70301 and the clamps 70302, which facilitates the quick disassembly of the sliding box 702 and the subsequent replacement and maintenance of the ultraviolet germicidal lamp 707.

[0042] Furthermore, the ring body 70401 is rotatably disposed within the mounting housing 70201; the ring body 70401 is provided with a plurality of axial mounting grooves 7040101 circumferentially equidistantly; each of the axial mounting grooves 7040101 is provided with a clamping member 70402; the axial mounting groove 7040101 is used to install the strip-shaped wiper 705 and is clamped by the clamping member 70402.

[0043] In this embodiment, the ring body 70401 is rotatably mounted in the mounting housing 70201 via bearings and can rotate freely around its own axis. Multiple axial mounting grooves 7040101 are equidistantly spaced on the inner circumference of the ring body 70401. Each axial mounting groove 7040101 extends axially through the ring body 70401 and has a cross-section in the shape of a groove with one side opening, the opening facing the central axis of the ring body 70401. Each axial mounting groove 7040101 accommodates one strip-shaped wiper 705. The strip-shaped wiper 705 is pushed into the axial end of the axial mounting groove 7040101, and the cleaning portion extends from the opening of the axial mounting groove 7040101, contacting the outer wall of the ultraviolet germicidal lamp 707. The clamping member 70402 is disposed within the axial mounting groove 7040101 and is used to radially press the strip-shaped wiper 705 inwards.

[0044] Furthermore, the radial abutment plate 7040201 is slidably disposed within the axial mounting groove 7040101; one end of the plurality of springs 7040202 is fixedly connected to the radial abutment plate 7040201, and the other end is fixedly connected to the inner wall of the axial mounting groove 7040101 and located within the axial mounting groove 7040101.

[0045] In this embodiment, when the strip wiper 705 is inserted into the axial mounting groove 7040101, the elastic restoring force of the spring 7040202 acts on the back of the strip wiper 705 through the radial clamping plate 7040201, pressing the strip wiper 705 radially inward; when the strip wiper 705 needs to be replaced, the user can directly pull the strip wiper 705 out axially from the end of the axial mounting groove 7040101.

[0046] Furthermore, the second motor 70601 is fixedly disposed within the mounting housing 70201; the gear 70602 is fixedly disposed at the output end of the second motor 70601; and the gear ring 70603 is fixedly disposed at one end of the ring body 70401 and meshes with the gear 70602.

[0047] In this embodiment, when it is necessary to drive the rotating ring 704 to rotate, the second motor 70601 starts, driving the gear 70602 to rotate; the gear 70602 meshes with the gear ring 70603, transmitting power to the ring body 70401, driving the ring body 70401 to rotate around its own axis; when the ring body 70401 rotates, it drives the multiple strip wipers 705 mounted on it to rotate synchronously, so that the strip wipers 705 move along the axial direction of the lamp tube of the ultraviolet germicidal lamp 707 while rotating around the outer wall of the lamp tube of the ultraviolet germicidal lamp 707, forming a spiral composite wiping trajectory, ensuring that the outer wall of the lamp tube of the ultraviolet germicidal lamp 707 is cleaned without dead angles in the circumferential direction.

[0048] Furthermore, the bristles 70502 are fixedly disposed at the bottom of the mounting plate 70501, the overall cross-sectional shape of the strip brush 705 is T-shaped, the mounting plate 70501 constitutes the horizontal part of the T-shape, and the bristles 70502 constitute the vertical part of the T-shape.

[0049] In this embodiment, the mounting plate 70501 forms the transverse portion of a T-shaped cross-section, the width of which is greater than the opening width of the axial mounting groove 7040101. Therefore, the mounting plate 70501 is confined within the axial mounting groove 7040101 and will not come out of the groove. The bristles 70502 form the longitudinal portion of a T-shaped cross-section, extending from the opening of the axial mounting groove 7040101 and contacting the outer wall of the lamp tube of the ultraviolet germicidal lamp 707. The bottom surface of the mounting plate 70501 is pressed against by the radial thrust of the clamping member 70402, preventing it from detaching from the end of the axial mounting groove 7040101. When replacement is required, the user can directly pull the strip wiper 705 axially out from the end of the axial mounting groove 7040101 and then push in the new strip wiper 705, achieving tool-free quick disassembly and maintenance.

[0050] The sterilization device for cold chain storage of fruits described in this embodiment operates as follows: The inlet fan 5 and the outlet fan 6 are activated. Air from the cold storage enters through the inlet channel 1, flows through the activated carbon adsorption component 2 for adsorption of ethylene gas and odor molecules, and then enters the sterilization channel 3. Multiple ultraviolet sterilization components 7 irradiate the air with ultraviolet light for sterilization. The sterilized clean air is then discharged upwards through the upward-facing outlet channel 4, forming an airflow circulation away from the air inlet of the inlet channel 1 to avoid airflow short-circuiting. When it is necessary to sterilize the surface of the ultraviolet germicidal lamp 707... During cleaning, the displacement drive mechanism 703 drives the sliding box 702 to slide along the mounting frame 701, causing the rotating ring 704 and multiple strip wipers 705 to move axially along the lamp tube of the ultraviolet germicidal lamp 707. Simultaneously, the rotation drive mechanism 706 drives the rotating ring 704 to rotate, causing the strip wipers 705 to rotate around the outer wall of the lamp tube of the ultraviolet germicidal lamp 707. This achieves axial and circumferential composite wiping and cleaning of the lamp tube surface of the ultraviolet germicidal lamp 707, automatically removing dirt adhering to the outer wall of the lamp tube and maintaining sterilization efficiency. This solves the problem of existing sterilization devices where dirt easily adheres to the outer surface of the ultraviolet germicidal lamp 707 and cannot be automatically cleaned, leading to reduced sterilization efficiency. In use, this device is mounted on the inner wall of one side of the cold storage.

[0051] The second embodiment of this application is as follows: Based on the first embodiment, please refer to Figure 11 ,in, Figure 11 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0052] The present invention provides a sterilization method suitable for cold chain storage of fruits, comprising the following steps: S1: Start the inlet fan 5 and the outlet fan 6 to allow air to enter the cold storage through the air inlet channel 1; S2: Air flows through the activated carbon adsorption component 2, adsorbing and removing ethylene gas and odor molecules in the air, and intercepting some large dust particles and gaseous organic pollutants to reduce the scale buildup on the surface of the subsequent ultraviolet germicidal lamp 707. S3: After adsorption treatment, the air enters the sterilization channel 3, and multiple ultraviolet germicidal lamps 707 sterilize the air with ultraviolet light. S4: The sterilized clean air is discharged upward through the upward air outlet 4, forming an airflow circulation away from the air inlet of the air inlet 1; S5: When it is necessary to clean the surface of the UV germicidal lamp 707, the displacement drive mechanism 703 drives the sliding box 702 to slide along the mounting frame 701, causing the rotating ring 704 and the strip wiper 705 to move along the axial direction of the UV germicidal lamp 707; at the same time, the rotation drive mechanism 706 drives the rotating ring 704 to rotate, causing the strip wiper 705 to rotate around the outer wall of the UV germicidal lamp 707, so as to perform axial and circumferential composite wiping and cleaning on the surface of the UV germicidal lamp 707.

[0053] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A sterilization device suitable for cold chain storage of fruits, characterized in that, Includes an air inlet channel, activated carbon adsorption components, sterilization channel, upward air outlet channel, inlet fan, outlet fan, and multiple ultraviolet sterilization components; The activated carbon adsorption component is fixedly disposed on one side of the air inlet channel and communicates with the air inlet channel; the sterilization channel is fixedly disposed on one side of the activated carbon adsorption component and communicates with the activated carbon adsorption component; the upward air outlet channel is fixedly disposed on one side of the sterilization channel and communicates with the sterilization channel; the inlet fan is fixedly disposed in the air inlet channel; the outlet fan is fixedly disposed in the upward air outlet channel; and multiple ultraviolet sterilization components are disposed in the sterilization channel. The ultraviolet sterilization assembly includes a mounting frame, a sliding box, a displacement drive mechanism, a rotating ring, multiple strip wipers, a rotation drive mechanism, and an ultraviolet sterilization lamp. The mounting frame is fixedly installed on the inner wall of the sterilization channel; the sliding box is slidably installed on the mounting frame; the displacement driving mechanism is installed on the mounting frame and is used to drive the sliding box to slide; the rotating ring is rotatably installed inside the sliding box; a plurality of strip wipes are installed on the rotating ring; the rotation driving mechanism is installed inside the sliding box and is used to drive the rotating ring to rotate; the ultraviolet germicidal lamp is installed on the mounting frame and passes through the rotating ring, and the outer wall of the ultraviolet germicidal lamp tube contacts the plurality of strip wipes.

2. The sterilization device for cold chain storage of fruits as described in claim 1, characterized in that, The activated carbon adsorption assembly includes an adsorption channel, multiple guide rails, and multiple activated carbon filters. The adsorption channel is fixedly disposed between the air inlet channel and the sterilization channel, and is connected to the air inlet channel and the sterilization channel respectively; multiple guide rails are fixedly disposed on the front inner wall and the rear inner wall of the adsorption channel; an activated carbon filter is slidably disposed between each pair of corresponding guide rails.

3. The sterilization device for cold chain storage of fruits as described in claim 2, characterized in that, The mounting frame includes a long slide rail and two lamp holders; The elongated slide is fixedly installed on the inner wall of the sterilization channel; the two lamp holders are fixedly installed on the elongated slide for installing the ultraviolet germicidal lamps.

4. The sterilization device for cold chain storage of fruits as described in claim 3, characterized in that, The sliding box includes a mounting housing, two side blocks, two meshing blocks, and two screws; A guide groove is provided on both sides of the long slide; the mounting housing is located below the long slide; the two side blocks are respectively fixedly disposed on the side of the mounting housing; the two meshing blocks are respectively slidably disposed in the two side blocks and respectively inserted into the two guide grooves; the two screws are respectively rotatably connected to the two meshing blocks and respectively threadedly connected to the two side blocks, and respectively penetrate the two side blocks.

5. The sterilization device for cold chain storage of fruits as described in claim 4, characterized in that, The displacement driving mechanism includes a slider, two clamps, a lead screw, and a first motor; The slider is slidably disposed within the elongated slide rail and is located directly above the mounting housing; Two clamps are fixedly disposed at the bottom of the slider, and the mounting housing is located between the two clamps; the lead screw is rotatably disposed on the long slide rail and is threadedly connected to the slider; the first motor is fixedly disposed at one end of the long slide rail, and the output end of the first motor is fixedly connected to the lead screw.

6. The sterilization device for cold chain storage of fruits as described in claim 5, characterized in that, The rotating ring includes a ring body and multiple clamping elements; The ring body is rotatably disposed within the mounting housing; the ring body is provided with a plurality of axial mounting grooves equidistantly arranged around its circumference; each of the axial mounting grooves is provided with a clamping member; the axial mounting grooves are used to install the strip-shaped wiper, and are clamped by the clamping member.

7. The sterilization device for cold chain storage of fruits as described in claim 6, characterized in that, The clamping element includes a radial clamping plate and multiple springs; The radial abutment plate is slidably disposed within the axial mounting groove; one end of each of the plurality of springs is fixedly connected to the radial abutment plate, and the other end is fixedly connected to the inner wall of the axial mounting groove and is located within the axial mounting groove.

8. The sterilization device for cold chain storage of fruits as described in claim 7, characterized in that, The rotation drive mechanism includes a second motor, a gear, and a gear ring; The second motor is fixedly installed inside the mounting housing; the gear is fixedly installed at the output end of the second motor; the gear ring is fixedly installed at one end of the ring body and meshes with the gear.

9. The sterilization device for cold chain storage of fruits as described in claim 8, characterized in that, The strip wiper includes a mounting plate and bristles; The bristles are fixedly installed at the bottom of the mounting plate. The overall cross-sectional shape of the strip brush is T-shaped, with the mounting plate forming the horizontal part of the T-shape and the bristles forming the vertical part of the T-shape.

10. A sterilization method for cold chain storage of fruits, applied to the sterilization device for cold chain storage of fruits as described in any one of claims 1 to 9; characterized in that, Includes the following steps: Turn on the intake and exhaust fans to allow air to enter the cold storage through the air intake duct; Air flows through the activated carbon adsorption component, adsorbing and removing ethylene gas and odor molecules from the air, and intercepting some large dust particles and gaseous organic pollutants to reduce the scale buildup on the surface of the subsequent ultraviolet germicidal lamp tube. After adsorption treatment, the air enters the sterilization channel, where multiple ultraviolet germicidal lamps irradiate the air with ultraviolet light to sterilize it. The sterilized clean air is discharged upward through the upward air outlet channel, forming an airflow circulation that is far away from the air inlet of the air inlet channel; When it is necessary to clean the surface of the UV germicidal lamp tube, the displacement drive mechanism drives the sliding box to slide along the mounting frame, causing the rotating ring and strip wiper to move axially along the UV germicidal lamp tube; at the same time, the rotation drive mechanism drives the rotating ring to rotate, causing the strip wiper to rotate around the outer wall of the UV germicidal lamp tube, so as to perform axial and circumferential composite wiping cleaning on the surface of the UV germicidal lamp tube.

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