Ultraviolet disinfection device for cold chain food

Abstract

The application provides a kind of ultraviolet disinfection device for cold chain food, including conveying structure, and inlet transition box, disinfection box and outlet transition box are sequentially arranged on the conveying structure along the transmission direction of the conveying structure;At least four groups of ultraviolet disinfection structure are provided in the disinfection box, for disinfecting cold chain food located on the conveying structure;The inlet transition box is provided with a righting structure, for correcting the transmission direction of cold chain food.The application can ensure that cold chain food is in the middle position after entering the disinfection box, which facilitates the positioning of ultraviolet disinfection structure, thereby ensuring better disinfection effect;At the same time, the disinfection device of the application can meet the efficient and rapid disinfection needs of cold chain food in low temperature environment, and has simple structure and convenient operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of disinfection devices, in particular to a UV disinfection device for cold-chain food. BACKGROUND

[0002] Food cold chain is established with the progress of science and technology and the development of refrigeration technology, and is a logistics phenomenon under low-temperature conditions based on frozen technology and using refrigeration technology as a means. Cold-chain food has a wide range of flow, and its low-temperature environment is suitable for long-term survival of viruses.

[0003] At present, comprehensive disinfection of imported cold-chain goods has become a key step in the cold-chain circulation link. The disinfection method of imported goods of the customs department in China mainly adopts the method of spraying chemical disinfectant; the specific operation is to move the goods out of the refrigerated container and manually spray the disinfectant. Since most disinfectants are prone to freezing in low-temperature environment, the disinfection effect of this disinfection method is poor; at the same time, there are problems of disinfectant residue and food pollution through this disinfection method.

[0004] Therefore, based on the current situation, it is urgent to provide a disinfection equipment that can meet the high-efficiency and rapid disinfection needs of cold-chain food in low-temperature environment and has high automation. SUMMARY

[0005] The present application provides a UV disinfection device for cold-chain food to solve the defects of poor disinfection effect and other problems after disinfection in the prior art.

[0006] The present application provides a UV disinfection device for cold-chain food, comprising: a conveying structure, and an import transition box, a disinfection box and an export transition box arranged in sequence on the conveying structure along the conveying direction of the conveying structure.

[0007] Among them, the disinfection box is provided with at least four groups of UV disinfection structures for disinfecting cold-chain food located on the conveying structure.

[0008] Among them, the import transition box is provided with a righting structure for correcting the conveying direction of the cold-chain food.

[0009] According to the UV disinfection device for cold-chain food provided by the present application, the UV disinfection structure comprises an ultraviolet lamp assembly and an ultraviolet lamp seat for fixing the ultraviolet lamp assembly.

[0010] Among them, the ultraviolet lamp assembly comprises a reflector and a lamp tube.

[0011] According to the UV disinfection device for cold-chain food provided by the present application, the reflector has a horizontal section and extension sections symmetrically arranged at both ends of the horizontal section, and the extension sections are inclined relative to the horizontal section.

[0012] The ultraviolet disinfection device for cold-chain food provided by the present application comprises a righting structure, a conveying structure and a disinfection box.

[0013] The righting structure comprises two righting arms arranged symmetrically and a righting base for mounting the righting arms.

[0014] The righting structure further comprises a spacing adjustment assembly.

[0015] The spacing adjustment assembly comprises a moving seat, a bidirectional screw rod, an optical shaft and a driving handle.

[0016] The moving seat is respectively arranged on the bidirectional screw rod and the optical shaft, and the driving handle is connected to one end of the bidirectional screw rod.

[0017] At least one of the ultraviolet lamp seats is provided with an adjusting device for adjusting the distance between the ultraviolet lamp assembly and the cold-chain food.

[0018] The adjusting device comprises a driving mechanism and a lifting adjusting mechanism.

[0019] The driving mechanism is a stepping motor, and the lifting mechanism comprises a screw nut pair and a guide rod.

[0020] The ultraviolet disinfection device for cold-chain food further comprises an ultraviolet light protection device and a heat dissipation device.

[0021] The ultraviolet light protection device comprises a curtain, and the curtain is mounted on both ends of the box body of the inlet transition box and the outlet transition box.

[0022] The heat dissipation device comprises a first heat dissipation fan and a second heat dissipation fan.

[0023] The conveying structure is a roller type conveying belt.

[0024] The ultraviolet disinfection device for cold chain food provided by this invention has an inlet transition box, a disinfection box, and an outlet transition box sequentially arranged on the conveying structure along the transmission direction. The inlet transition box aligns the position of the cold chain food entering the conveying structure, achieving pre-positioning of the cold chain food to be disinfected. This ensures that the cold chain food is in the center after entering the disinfection box, facilitating the placement of the ultraviolet disinfection structure and thus guaranteeing a better disinfection effect. At the same time, the disinfection device of this invention can meet the needs of efficient and rapid disinfection of cold chain food in low-temperature environments, and has a simple structure and is easy to operate. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a perspective view of the ultraviolet disinfection device for cold chain food provided by the present invention;

[0027] Figure 2 This is a front sectional view of the ultraviolet disinfection device for cold chain food provided by the present invention;

[0028] Figure 3 This is a side sectional view of the ultraviolet disinfection device for cold chain food provided by the present invention;

[0029] Figure 4 This is a schematic diagram of the alignment structure in this invention;

[0030] Figure 5 This is one of the structural schematic diagrams of the ultraviolet lamp assembly in this invention;

[0031] Figure 6 This is the second schematic diagram of the structure of the ultraviolet lamp assembly in this invention;

[0032] Figure label:

[0033] 1. Conveying structure; 2. Inlet transition box; 3. Sterilization box;

[0034] 4: Export transfer box; 5: Ultraviolet disinfection structure; 51: Ultraviolet lamp holder;

[0035] 52: Reflector; 53: Lamp tube; 531: Straight lamp tube;

[0036] 532: U-shaped lamp tube; 54: Drive mechanism; 55: Lead screw and nut pair;

[0037] 56: guide rod; 6: alignment structure; 61: alignment base;

[0038] 62: alignment cylinder; 63: swing arm; 64: moving seat;

[0039] 65: bidirectional screw rod; 66: optical axis; 67: driving handle;

[0040] 7: first cooling fan; 8: second cooling fan; 9: curtain. DETAILED DESCRIPTION

[0041] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below in conjunction with the drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the present application. Figures 1 to 6 The embodiments of the present application will be described below. It should be understood that the following description is only a schematic embodiment of the present application and does not constitute any limitation on the present application.

[0043] Reference Figure 1 and Figure 2 As an embodiment of the present application, the present application provides a UV disinfection device for cold chain food, which is used for disinfecting the outer packaging (packaging bag or packaging box) of cold chain food and food without packaging in a low-temperature environment. The disinfection device comprises a conveying structure 1, an inlet transition box 2, a disinfection box 3 and an outlet transition box 4 arranged in sequence along the transmission direction of the conveying structure 1.

[0044] Among them, the disinfection box 3 is provided with at least four groups of UV disinfection structures 5, and the UV disinfection structures 5 are arranged on at least four inner walls of the disinfection box 3 respectively, for omnidirectional disinfection of the cold chain food passing through the conveying structure 1.

[0045] Among them, the inlet transition box 2 is provided with an alignment structure 6 for aligning the transmission direction of the cold chain food.

[0046] Since the position and direction of the cold chain food placed on the conveying structure 1 will be inclined or deviated to one side of the conveying structure 1 with the transmission of the conveying structure 1, if the cold chain food directly enters the disinfection box 3, the position is uncertain, which will affect the irradiation direction and irradiation distance of the UV disinfection structure 5, and further affect the disinfection effect of the UV lamp tube 53.

[0047] Therefore, the cold-chain food is adjusted to the center position of the conveying structure 1 by the adjusting structure 6, and then the good sterilization effect is ensured.

[0048] The outlet transition box 4 can be mirror set with the inlet transition box 2, or can be completely different, and is adjusted according to the adaptability of the corresponding collection equipment of the outlet.

[0049] It can be understood that the inlet transition box 2, the sterilization box 3 and the outlet transition box 4 are sequentially arranged on the conveying structure 1 along the transmission direction of the conveying structure 1, the position of the cold-chain food entering the conveying structure 1 is adjusted by the inlet transition box 2, the positioning of the cold-chain food to be sterilized is realized, the cold-chain food is ensured to be in the middle position after entering the sterilization box 3, the position of the ultraviolet sterilization structure 5 is facilitated to be arranged, and then the good sterilization effect is ensured; meanwhile, the sterilization device can meet the high-efficiency and rapid sterilization requirement of the cold-chain packaged food, and has the advantages of simple structure and convenient operation.

[0050] In the embodiment, specifically, the ultraviolet sterilization structure 5 can be installed on the upper, lower, left and right four surfaces inside the sterilization box 3, and strong ultraviolet sterilization is performed on the six surfaces of the cold-chain food, and the front and rear two surfaces inside the box body are connected with the inlet transition box 2 and the outlet transition box 4 respectively.

[0051] The ultraviolet sterilization structure 5 includes an ultraviolet lamp holder 51 and an ultraviolet lamp assembly fixedly installed on the ultraviolet lamp holder 51.

[0052] More specifically, the ultraviolet lamp assembly includes a reflector 52 and a lamp tube 53, the reflector 52 has a horizontal section and extension sections symmetrically arranged on both sides of the horizontal section, a certain angle is formed between the horizontal section and the extension sections, that is, the extension sections are inclinedly arranged relative to the horizontal section, so that the front and rear surfaces of the cold-chain food can receive sufficient ultraviolet irradiation dose, and the sterilization effect is enhanced.

[0053] The lamp tube 53 includes straight lamp tubes 531 and U-shaped lamp tubes 532, the straight lamp tubes 531 are installed on the horizontal section of the reflector 52, and the U-shaped lamp tubes 532 are installed on the extension sections of the reflector 52. Different lamp tubes 53 can be turned on according to the size of the cold-chain food, so that the radiation range of the ultraviolet lamp is sufficient to cover each surface of the cold-chain food, unnecessary energy consumption is reduced, and the utilization effect of the sterilization device is improved.

[0054] In the embodiment, the number of the lamp tubes 53 installed on the reflector 52 can be set as follows: six straight lamp tubes 531 are installed on the horizontal section, and two U-shaped lamp tubes 532 are installed on the extension sections. The lamp tube 53 is one of low-voltage high-intensity mercury lamps, the ultraviolet lamp line intensity at a distance of 30 cm from the lamp tube is higher than 10 mW / cm 2 , and the sterilization and disinfection effect is good, and the sterilization and disinfection requirement of viruses can be met in a short time.

[0055] In the embodiment, specifically, the aligning structure 6 comprises two aligning arms arranged symmetrically, and an aligning base 61 for mounting the aligning arms.

[0056] More specifically, the aligning arm comprises an aligning cylinder 62 and an arm 63, the output end of the aligning cylinder 62 is fixedly connected to the arm 63, when the cold-chain food enters between the two arms 63 arranged oppositely, the aligning cylinder 62 pushes the arm 63, and the arm 63 pushes the cold-chain food, so that the cold-chain food is in the center position of the drum-type conveying belt.

[0057] As a preferred, the two arms 63 can be arranged in an "eight" shape at the inlet end, so as to facilitate the cold-chain food to enter between the two arms 63.

[0058] Further, the aligning structure 6 is further provided with a spacing adjusting assembly, the spacing adjusting assembly comprises a moving seat 64, a bidirectional screw rod 65, a light shaft 66 and a driving handle 67, the aligning base 61 is fixedly mounted on the moving seat 64, the moving seat 64 is respectively arranged on the bidirectional screw rod 65 and the light shaft 66, and the driving handle 67 is fixedly mounted at one end of the bidirectional screw rod 65.

[0059] By rotating the driving handle 67, the bidirectional screw rod 65 is synchronously rotated, so as to drive the moving seat 64 to move on the light shaft 66, so that the two arms 63 are close to or away from each other, so as to adjust the spacing between the two arms 63, so as to meet the cold-chain food of different structure sizes passing and aligning.

[0060] In addition, a photoelectric detector is also mounted near the aligning structure 6, for detecting whether the cold-chain food enters between the two arms 63, and then feeding the detection information to the controller, and the controller issues an instruction, and the aligning cylinder 62 drives the arm 63 to push the cold-chain food to align.

[0061] In the embodiment, specifically, the conveying structure 1 is a drum-type conveying belt, comprising a rack and a plurality of conveying rollers mounted on the rack. The drum-type conveying belt can adjust the conveying speed, and then can be adjusted according to the required ultraviolet radiation dose and disinfection time of the ultraviolet disinfection structure 5. It should be noted that the drum-type conveying belt is prior art, and its structure and control method are not described here.

[0062] In the implementation process, it should be noted that there should be enough gap between the conveying rollers on the drum-type conveying belt, so that the ultraviolet light scattered by the ultraviolet disinfection structure 5 below the drum-type conveying belt can irradiate the bottom surface of the cold-chain food.

[0063] As another embodiment of the present application, see Figure 2 and Figure 3At least one of the ultraviolet lamp holders 51 is provided with an adjusting device for adjusting the distance between the ultraviolet disinfection structure 5 and the cold-chain food, so as to adapt to the disinfection of cold-chain foods of different sizes.

[0064] It can be understood that the adjusting device is not necessarily installed on each of the ultraviolet lamp holders 51, and can be selected according to actual needs. The adjusting device can also be provided on the ultraviolet lamp holders 51 located at the upper part of the box body or the top, so as to adjust the position of the upper ultraviolet lamp 53 according to the height of the cold-chain food. Meanwhile, the ultraviolet lamp holders 51 at other positions are fixedly installed.

[0065] Specifically, the adjusting device comprises a driving mechanism 54 and a lifting adjusting mechanism. The driving mechanism 54 can be a stepping motor or a servo motor. The driving mechanism 54 can also adopt a hand wheel control, that is, a hand wheel is fixedly connected to one end of a lead screw, and the lead screw is driven to transmit by rotating the hand wheel.

[0066] The lifting mechanism can comprise a lead screw nut pair 55 and a guide rod 56. The ultraviolet lamp holder 51 is fixedly installed on the lead screw nut, and is slidingly connected to the guide rod 56. The lead screw is driven by the motor to transmit, so as to control the ultraviolet lamp holder 51 to move along the guide rod 56, thereby adjusting the position of the ultraviolet lamp holder 51 and the distance between the ultraviolet lamp and the cold-chain food, that is, adjusting the radiation distance of the ultraviolet light.

[0067] The radiation intensity of the ultraviolet lamp is positively correlated with the radiation distance, that is, the closer the radiation distance, the greater the radiation intensity. Therefore, according to the size of the cold-chain food, the radiation distance is adaptively adjusted, that is, the lifting mechanism is adjusted, so that the ultraviolet lamp is close to or away from the cold-chain food.

[0068] As an embodiment of the present application, referring to Figure 1 The present application further comprises an ultraviolet light protection device for preventing ultraviolet light from penetrating. The ultraviolet light protection device comprises a curtain 7 which is resistant to high temperature and ultraviolet light. The curtain 7 is installed at both ends of the box body of the inlet transition box 2 and the outlet transition box 4, and the distance between the two curtains 7 is greater than the length of the cold-chain food, that is, the length of the box body of the inlet transition box 2 or the outlet transition box 4, so as to ensure that at least one of the curtains 7 is completely lowered during the process of the cold-chain food passing through the passage, thereby reducing the leakage of ultraviolet light.

[0069] As an embodiment of the present application, referring to Figure 1 and Figure 6 The present application further comprises a heat dissipation device. Since the high-intensity ultraviolet lamp 53 has high power and high heat generation, if no heat dissipation control is performed during the working process, the temperature of the lamp 53 will rapidly rise. When the temperature exceeds the normal working temperature, the efficiency of the ultraviolet lamp 53 will decrease, and more seriously, the temperature will be too high to burn the lamp 53.

[0070] The heat dissipation device comprises a first heat dissipation fan 7 and a second heat dissipation fan 8, the first heat dissipation fan 7 is fixed on the top of the box body of the sterilization box 3, and the air volume is adjusted according to the heat dissipation requirement, so that the convection heat dissipation in the interior of the sterilization box 3 is strengthened.

[0071] The second heat dissipation fan 8 is a small heat dissipation fan, which is installed on the two sides of the horizontal section of the reflector 52, and forcibly air-cooled convection heat dissipation can be achieved, the air volume can be adjusted according to the temperature of the ultraviolet lamp tube 53 to air-cooled heat dissipation of the ultraviolet lamp tube 53, so that the optimal working temperature of the ultraviolet lamp tube 53 is maintained, and the number of the second heat dissipation fan 8 is not limited, and is determined according to the requirement of the ultraviolet lamp tube 53.

[0072] Meanwhile, the heat dissipation device is provided with a temperature sensor, which can monitor the temperature of the ultraviolet lamp tube 53 in real time, so that the heat dissipation capacity can be adjusted according to the temperature change, so as to achieve the purpose of temperature control.

[0073] It should be noted that the ultraviolet disinfection device is provided with connecting lines and an electric control box corresponding to the ultraviolet lamp tube 53 and each heat dissipation fan, a controller is arranged in the electric control box, the working state of each component, i.e., the cylinder, the motor, the fan and the like, is controlled through the controller.

[0074] In addition, the ultraviolet disinfection structure 5 is provided with casters, so as to facilitate movement.

[0075] The ultraviolet disinfection device for cold chain food provided by the application is used in the working process, the cold chain food in the customs cold storage is placed on the roller conveyor belt at the front end of the import transition box 2 by the robot or the staff, and the roller conveyor belt is arranged through the ultraviolet disinfection structure 5.

[0076] With the transmission of the roller conveyor belt, the cold chain food enters the import transition box 2, when the photoelectric detector detects that the cold chain food enters, the swing arms 63 on both sides of the cold chain food are controlled to move to adjust the position; after the transmission position is adjusted by the adjusting structure 6, the cold chain food enters the sterilization box 3 to perform sterilization operation, and after the sterilization is completed, the cold chain food enters the export transition box 4 with the transmission of the roller conveyor belt, and then is transported after being output from the export transition box 4, so that the sterilization and discharge of the cold chain food in the customs cold storage are completed, the transmission path of the virus is cut off, and the safety of the cold chain food in the transportation or packaging process is improved.

[0077] Moreover, the ultraviolet disinfection device in the application can realize automatic sterilization of cold chain packaging food with different structures and sizes by cooperating with the robot, has wide application range, simple structure, low manufacturing cost and convenient operation, and most importantly, can meet the high-efficiency and rapid sterilization requirement of the cold chain packaging food in the low-temperature environment and realize good sterilization effect.

[0078] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A UV disinfection device for cold chain food, for disinfecting the outer packaging of cold chain food and food without packaging in a low-temperature environment, characterized in that, The application relates to a cold-chain food conveying device. The device comprises a conveying structure, an inlet transition box, a disinfection box and an outlet transition box arranged in sequence along the conveying direction of the conveying structure. The disinfection box is provided with four groups of ultraviolet disinfection structures on the left and right faces and the upper and lower faces of the disinfection box, which are used for disinfecting cold-chain foods on the conveying structure; the ultraviolet disinfection structure comprises an ultraviolet lamp assembly and an ultraviolet lamp holder for fixing the ultraviolet lamp assembly; the ultraviolet lamp assembly comprises a reflector and a lamp tube, the reflector has a horizontal section and extension sections symmetrically arranged at both ends of the horizontal section, the extension sections are arranged obliquely relative to the horizontal section, straight lamp tubes are arranged at intervals on the horizontal section, and U-shaped lamp tubes are arranged on the extension sections. The inlet transition box is provided with a righting structure, which comprises two symmetrically arranged righting arms and a righting base for fixing the righting arms; the righting arm comprises a righting air cylinder and a swing arm fixedly connected to the output end of the righting air cylinder and used for correcting the conveying direction of the cold-chain foods. The device further comprises a heat dissipation device, which comprises a first heat dissipation fan and a second heat dissipation fan; the first heat dissipation fan is fixed to the inner wall top of the disinfection box and is used for adjusting the air volume according to the heat dissipation requirement to strengthen the convection heat dissipation of the disinfection box; the second heat dissipation fan is fixed to the two sides of the reflector and is used for adjusting the air volume according to the temperature of the ultraviolet lamp tube to air-cool and dissipate heat of the ultraviolet lamp tube and maintain the optimal working temperature of the ultraviolet lamp tube.

2. The ultraviolet disinfection device for cold-chain food according to claim 1, characterized in that, The righting structure further comprises a spacing adjustment assembly for adjusting the spacing between the two swing arms.

3. The ultraviolet disinfection apparatus for cold-chain food according to claim 2, characterized in that, The spacing adjustment assembly comprises a moving seat, a bidirectional screw rod, a light shaft and a driving handle; the righting base is fixed to the moving seat; The moving seat is arranged on the bidirectional screw rod and the light shaft respectively, and the driving handle is connected to one end of the bidirectional screw rod.

4. The UV disinfection device for cold-chain food according to claim 1, characterized in that, At least one ultraviolet lamp holder is provided with an adjusting device for adjusting the distance between the ultraviolet lamp assembly and the cold-chain foods.

5. The UV disinfection device for cold-chain food according to claim 4, characterized in that, The adjusting device comprises a driving mechanism and a lifting adjusting mechanism; The driving mechanism is a stepping motor; the lifting mechanism comprises a screw nut pair and a guide rod; the ultraviolet lamp holder is fixed to the screw nut pair and is slidably connected to the guide rod.

6. The UV disinfection device for cold-chain food of claim 1, wherein, The device further comprises an ultraviolet light protection device; The ultraviolet light protection device comprises a curtain, which is arranged at both ends of the box body of the inlet transition box and the outlet transition box.

7. The UV disinfection device for cold-chain food according to claim 6, characterized in that, The conveying structure is a roller type conveying belt.

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