Uvc disinfection device applied to cold chain food

Abstract

The application belongs to the technical field of food sterilization, and particularly relates to a UVC sterilization and disinfection device applied to cold-chain food, which comprises a cold-chain food sterilization device, wherein the cold-chain food sterilization device comprises a sterilization cavity, a control panel, an ultraviolet irradiation device, a lifting cavity, a placing cavity and a door; the lifting cavity comprises a motor, an output shaft, an expansion joint and a threaded rod, the control panel is fixedly installed on the right side of the sterilization cavity and internally provided with an intelligent control system, the ultraviolet irradiation device is fixedly installed on the upper side of the inner wall of the sterilization cavity, the door shaft is connected to one side of the sterilization cavity, and the lifting cavity is fixedly installed on the bottom of the inner wall of the sterilization cavity; the motor is fixedly installed on the bottom of the inner wall of the lifting cavity, and the output shaft is fixedly connected with the output end of the motor, so that the device solves the problem that, when the current UVC sterilization and disinfection device is used for sterilizing meat food, the meat food accumulated at the bottom cannot be irradiated by ultraviolet light, resulting in a great reduction in sterilization effect and sterilization efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of food sterilization, specifically relating to UVC sterilization equipment for cold chain food. Background Technology

[0002] Cold chain food includes primary agricultural products and processed foods. Processed foods include frozen foods and refrigerated foods. Frozen foods mostly include meat. Generally, meat products such as meat chunks are put into UVC sterilization equipment for ultraviolet sterilization to ensure food quality.

[0003] Currently available UVC sterilization equipment sterilizes large quantities of meat at once, resulting in insufficient UV exposure for meat pieces piled at the bottom, leading to poor sterilization. Furthermore, the fixed distance between the UV emitter and the meat during sterilization increases the sterilization time, significantly reducing efficiency. This issue is a pressing problem for researchers in this field. Summary of the Invention

[0004] The purpose of this invention is to provide a UVC disinfection device for cold chain food, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a UVC sterilization device for cold chain food, including a cold chain food sterilization device, wherein the cold chain food sterilization device includes a sterilization chamber, a control panel, an ultraviolet irradiator, a lifting chamber, a placement chamber, and a door; the lifting chamber includes a motor, an output shaft, a telescopic joint, and a threaded rod; the control panel is fixedly installed on the right side of the sterilization chamber and has an intelligent control system inside; the ultraviolet irradiator is fixedly installed on the upper inner wall of the sterilization chamber; the door is hinged to one side of the sterilization chamber; the lifting chamber is fixedly installed on the bottom inner wall of the sterilization chamber; the motor is fixedly installed on the bottom inner wall of the lifting chamber; the output shaft is fixedly connected to the output end of the motor; the telescopic joint is fixedly installed on the upper end of the output shaft; the threaded rod is fixedly installed on the upper end of the telescopic joint, and the upper end of the threaded rod is connected to the bottom bearing of the placement chamber; the placement chamber is located below the ultraviolet irradiator; a threaded hole is provided above the lifting chamber, and the threaded rod is threadedly connected to the threaded hole.

[0006] The present invention further illustrates that a weight recognition module is provided inside the placement cavity, and a frequency adjustment module is provided on the inner wall of the motor. The weight recognition module and the frequency adjustment module are electrically connected. The weight recognition module is used to identify the weight of the meat block placed in the placement cavity, and the frequency adjustment module is used to control the number of times the motor rotates clockwise and counterclockwise according to the weight of the meat block.

[0007] The present invention further describes that the interior of the placement cavity is provided with a stirring plate, the bottom of the stirring plate is fixed with a support plate, the bottom of the support plate is fixed with a connecting rod, and the bottom of the placement cavity and the top of the lifting cavity are both provided with sliding grooves. The connecting rod is inserted into the sliding groove of the placement cavity, and a telescopic rod is fixed to its lower end. A ball rod is fixed to the lower end of the telescopic rod. The ball rod is inserted into the sliding groove of the lifting cavity, and a limit block is fixed to its upper outer side. The limit block is in contact with the bottom surface of the sliding groove. Slide rails are fixed to both sides of the bottom of the sliding groove, and the limit block is slidably connected to the slide rails. A ball is fixed to the bottom end of the ball rod, and a ball is fixed to the inner side of the ball. A gear is mounted on the bearing at the bottom of the inner wall of the lifting cavity. A gear is fixed to the outer side of the output shaft and meshes with the gear. A compression ball is spring-connected to the top of the gear, and the compression ball contacts the ball after the gear rotates.

[0008] The present invention further describes that a pneumatic chamber is fixed to the front side of the inner wall of the lifting chamber, a pneumatic plate is slidably connected to the inner wall of the pneumatic chamber, a pneumatic rod is fixed to one side of the pneumatic plate, the ball rod contacts the pneumatic rod after it moves, and a push-pull plate is fixed to the inner side of the ball rod; the pneumatic plate is spring-connected to the front side of the inner wall of the pneumatic chamber, a gas chamber is connected to the front pipe of the pneumatic chamber, a slide cylinder is fixed to the front side of the inner wall of the lifting chamber, a slide rod is slidably connected inside the slide cylinder, the slide rod contacts the push-pull plate after it extends, the front end of the slide rod is spring-connected to the front side of the inner wall of the slide cylinder, the front side of the slide cylinder is connected to the gas chamber pipe, and a pressure valve is provided in the pipe.

[0009] The present invention further illustrates that the front side of the air pressure chamber is connected to an external pipeline, and a one-way valve is provided inside the pipeline; the front side of the slide cylinder is connected to an external control valve pipeline.

[0010] The present invention further illustrates that the rear ends of the push-pull plate and the slide rod are both magnetic, and their magnetic poles are opposite.

[0011] The present invention further explains that after the second sphere rotates, the squeeze ball comes into contact with both the first sphere and the second sphere.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention uses the alternating clockwise and counterclockwise rotation of the motor to drive the placement cavity to move up and down, thereby reducing the distance between the ultraviolet irradiator and the meat, thereby strengthening the sterilization intensity and improving the sterilization efficiency, while increasing the distance between the ultraviolet irradiator and the meat again to avoid excessive irradiation that would reduce the nutritional value of the meat and improve the sterilization quality.

[0013] Furthermore, the meat pieces are stirred during ultraviolet sterilization to ensure that they are evenly exposed to ultraviolet light, thereby further improving the fire extinguishing effect and sterilization efficiency. During the lifting and lowering of the placement cavity, the meat pieces are continuously stirred, and the more meat pieces there are, the more times they are stirred, thus ensuring that all meat pieces can be sterilized by ultraviolet light and avoiding the phenomenon that the meat pieces at the bottom cannot be irradiated.

[0014] By rotating the support plate and stirring plate, the stirring intensity of the meat pieces is increased when they are difficult to turn, thus ensuring that more meat pieces can be sterilized and further improving the sterilization quality. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the sterilization chamber of the present invention;

[0018] Figure 3 This is a plan view of the internal structure of the sterilization chamber of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the lifting cavity of the present invention;

[0020] Figure 5 This is a schematic diagram of the pneumatic chamber and the internal structure of the slide of the present invention;

[0021] Figure 6 This is a schematic diagram of the pipe connection between the air pressure chamber and the slide cylinder of the present invention;

[0022] In the diagram: 1. Sterilization chamber; 2. Control panel; 3. Ultraviolet irradiator; 4. Lifting chamber; 41. Motor; 411. Output shaft; 412. Telescopic joint; 413. Threaded rod; 42. Gear disc; 421. Extrusion ball; 43. Gear; 44. Air pressure chamber; 441. Air pressure plate; 442. Air pressure rod; 45. Air chamber; 46. Slide cylinder; 461. Slide rod; 5. Placement chamber; 51. Stirring plate; 52. Support plate; 53. Connecting rod; 54. Telescopic rod; 55. Ball rod; 551. Ball one; 552. Ball two; 56. Limiting block; 57. Push-pull plate; 6. Door. Detailed Implementation

[0023] The following detailed, non-limiting description of the technical solution of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-6 The present invention provides a technical solution: a UVC sterilization device for cold chain food, including a cold chain food sterilization device, which includes a sterilization chamber 1, a control panel 2, an ultraviolet irradiator 3, a lifting chamber 4, a placement chamber 5, and a door 6.

[0025] The lifting chamber 4 includes a motor 41, an output shaft 411, a telescopic joint 412, and a threaded rod 413. The control panel 2 is fixedly installed on the right side of the sterilization chamber 1 and is equipped with an intelligent control system. The ultraviolet irradiator 3 is fixedly installed on the upper inner wall of the sterilization chamber 1. The door 6 is shaft-connected to one side of the sterilization chamber 1. The lifting chamber 4 is fixedly installed on the bottom inner wall of the sterilization chamber 1.

[0026] The motor 41 is fixedly installed on the bottom of the inner wall of the lifting cavity 4. The output shaft 411 is fixedly connected to the output end of the motor 41. The telescopic joint 412 is fixedly installed on the upper end of the output shaft 411. The threaded rod 413 is fixedly installed on the upper end of the telescopic joint 412, and the upper end of the threaded rod 413 is connected to the bottom bearing of the mounting cavity 5. The mounting cavity 5 is located below the ultraviolet irradiator 3. A threaded hole is provided on the upper part of the lifting cavity 4, and the threaded rod 413 is threaded into the threaded hole.

[0027] The operator opens door 6 and places several pieces of meat into the placement chamber 5. Then, the cold chain food sterilization equipment is activated. The ultraviolet irradiator 3 emits ultraviolet light to sterilize the meat. During sterilization, the motor 41 operates, driving the telescopic joint 412 to rotate via the output shaft 411. The telescopic joint 412 drives the threaded rod 413 to rotate and move upwards through the threaded hole, thereby moving the placement chamber 5 upwards. The telescopic joint 412 is stretched, bringing the ultraviolet irradiator 3 closer to the meat, thus strengthening the sterilization intensity and improving sterilization efficiency. Afterwards, the motor 41 rotates in the opposite direction, causing the placement chamber 5 to move downwards and reset, thereby widening the distance between the ultraviolet irradiator 3 and the meat again, preventing excessive irradiation that could reduce the nutritional value of the meat and improving sterilization quality.

[0028] The placement cavity 5 is equipped with a weight recognition module, and the inner wall of the motor 41 is equipped with a frequency adjustment module. The weight recognition module and the frequency adjustment module are electrically connected. The weight recognition module is used to identify the weight of the meat block placed in the placement cavity 5, and the frequency adjustment module is used to control the number of times the motor 41 rotates clockwise and counterclockwise according to the weight of the meat block.

[0029] The method for adjusting the number of times is as follows: Q represents the number of times motor 41 rotates alternately clockwise and counterclockwise. max G is the maximum number of times motor 41 rotates clockwise and counterclockwise, and G is the weight of the meat in the placement cavity 5. max To ensure the maximum weight that the placement cavity 5 can withstand, the heavier the meat, the more meat pieces inside. In this case, the motor 41 rotates clockwise and counterclockwise more often, causing the placement cavity 5 to move upward and bringing the distance between the ultraviolet irradiator 3 and the meat closer together more often, thus greatly improving the sterilization effect. Conversely, for cases with fewer meat pieces, the number of high-intensity irradiations is reduced, thereby ensuring the quality of the meat. This intelligent sterilization method greatly improves the sterilization effect.

[0030] The placement cavity 5 is equipped with a stirring plate 51. A support plate 52 is fixed to the bottom of the stirring plate 51. A connecting rod 53 is fixed to the bottom of the support plate 52. Slide grooves are provided at the bottom of the placement cavity 5 and above the lifting cavity 4. The connecting rod 53 is inserted into the slide groove of the placement cavity 5, and a telescopic rod 54 is fixed to its lower end. A ball rod 55 is fixed to the lower end of the telescopic rod 54. The ball rod 55 is inserted into the slide groove of the lifting cavity 4, and a limit block 56 is fixed to its upper outer side. The limit block 56 is in contact with the bottom surface of the slide groove. Slide rails are fixed on both sides of the bottom of the slide groove, and the limit block 56 is slidably connected to the slide rails, so that the limit block 56 and the lifting cavity 4 can only slide or rotate relative to each other in the horizontal direction, while remaining stationary in the vertical direction.

[0031] A ball 551 is fixed to the bottom of the cue stick 55, a ball 552 is fixed to the inside of the ball 551, a gear 42 is installed on the bottom bearing of the inner wall of the lifting chamber 4, a gear 43 is fixed to the outside of the output shaft 411 and meshes with the gear 42, a compression ball 421 is connected to the upper part of the gear 42 by a spring, and the compression ball 421 contacts the ball 551 after the gear 42 rotates;

[0032] Through the above steps, when the output shaft 411 rotates, it drives the gear 43 to rotate, which in turn drives the gear disc 42 to rotate through meshing. The gear disc 42 drives the extrusion ball 421 to rotate around the center until it squeezes and rubs against the ball 551. The spring below the extrusion ball 421 is deformed by force, and at the same time, the ball 551 is driven by force to move the ball rod 55 forward. The ball rod 55 drives the connecting rod 53 forward through the telescopic rod 54. The connecting rod 53 drives the stirring plate 51 and the support plate 52 forward, which can stir the meat pieces, so that the meat pieces are evenly exposed to ultraviolet light, thereby further improving the fire extinguishing effect and sterilization efficiency. During the lifting and lowering of the placement cavity 5, the meat pieces are continuously stirred, and the more meat pieces there are, the more times they are stirred, thus ensuring that all meat pieces can be sterilized by ultraviolet light and avoiding the phenomenon that the meat pieces at the bottom cannot be irradiated.

[0033] A pneumatic chamber 44 is fixed to the front side of the inner wall of the lifting chamber 4. A pneumatic plate 441 is slidably connected to the inner wall of the pneumatic chamber 44. A pneumatic rod 442 is fixed to one side of the pneumatic plate 441. After the ball stick 55 moves, it comes into contact with the pneumatic rod 442. A push-pull plate 57 is fixed to the inner side of the ball stick 55.

[0034] The air pressure plate 441 is spring-connected to the front side of the inner wall of the air pressure chamber 44. The front pipe of the air pressure chamber 44 is connected to the air chamber 45. The front side of the inner wall of the lifting chamber 4 is fixed with a slide cylinder 46. The slide cylinder 46 is slidably connected with a slide rod 461 inside. After the slide rod 461 extends out, it contacts the push-pull plate 57. The front end of the slide rod 461 is spring-connected to the front side of the inner wall of the slide cylinder 46. The front side of the slide cylinder 46 is connected to the air chamber 45 pipe, and a pressure valve is installed in the pipe.

[0035] The front side of the air pressure chamber 44 is connected to an external pipeline, and a one-way valve is installed inside the pipeline. The front side of the slide cylinder 46 is connected to an external control valve pipeline.

[0036] When the cue stick 55 moves forward, it contacts the pneumatic rod 442 and pushes the pneumatic rod 442 forward. The pneumatic rod 442 drives the pneumatic plate 441 to slide forward along the inner wall of the pneumatic chamber 44. The spring deforms under force. After the squeeze ball 421 disengages from the ball 551, the rear side of the cue stick 55 is no longer under force. The spring generates a reaction force that pushes the cue stick 55 back to its original position through the pneumatic rod 442. Thus, when stirring the meat, the pneumatic chamber 44 continuously draws gas from the outside and injects it into the air chamber 45. When there are many pieces of meat, the number of stirrings is greater. The frequent movement causes the gas pressure entering the air chamber 45 to reach the pressure limit of the pressure valve, opening the valve and allowing gas to quickly enter the slide cylinder 46 through the pipe. This pushes the slide rod 461 to move backward, causing the spring to deform and push the push-pull plate 57. The push-pull plate 57 then rotates the ball rod 55, causing the support plate 52 and the stirring plate 51 to rotate. Since meat pieces are not easy to turn over, the stirring intensity of the meat pieces is increased, further ensuring that more meat pieces can be sterilized and improving the sterilization quality.

[0037] The rear ends of the push-pull plate 57 and the slide bar 461 are both magnetic, and their magnetic poles are opposite.

[0038] The slide rod 461 pushes the push-pull plate 57. When the support plate 52 and the stirring plate 51 need to rotate and turn the meat pieces continuously, this is achieved by periodically opening and closing the external control valve. Specifically, when the slide rod 461 extends and pushes the push-pull plate 57 to rotate to a certain angle, the push-pull plate 57 and the slide rod 461 are always attracted together under the action of magnetism. At this time, the external control valve is opened, and the air pressure in the slide cylinder 46 returns to normal. Driven by the reaction force of the spring, the slide rod 461 and the push-pull plate 57 return to their original positions, and then the external control valve is closed. After the pressure valve is opened, the slide rod 461 continues to move to the rear. The slide rod 461 extends again and pushes the push-pull plate 57 to rotate, so that the support plate 52 and the stirring plate 51 continuously stir the meat pieces, greatly improving the sterilization efficiency, and the meat pieces can be fully sterilized by ultraviolet radiation.

[0039] After sphere 2 552 rotates, it compresses sphere 421 into contact with sphere 1 551 and sphere 2 552.

[0040] Furthermore, when the cue stick 55 rotates, the second ball 552 rotates around the center, allowing the second ball 552 to also come into contact with the compression ball 421. The compression ball 421 first compresses the second ball 552, and then compresses the first ball 551, thereby further accelerating the frequency of turning the meat pieces, so that no matter how many or how few meat pieces there are, they can be fully sterilized, greatly enhancing the sterilization effect.

[0041] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A UVC sterilization device for cold chain food, including cold chain food sterilization equipment, characterized in that: The cold chain food sterilization equipment includes a sterilization chamber (1), a control panel (2), an ultraviolet irradiator (3), a lifting chamber (4), a placement chamber (5), and a door (6). The lifting chamber (4) includes a motor (41), an output shaft (411), a telescopic joint (412), and a threaded rod (413). The control panel (2) is fixedly installed on the right side of the sterilization chamber (1) and has an intelligent control system inside. The ultraviolet irradiator (3) is fixedly installed on the upper inner wall of the sterilization chamber (1). The door (6) is shaft-connected to one side of the sterilization chamber (1). The lifting chamber (4) is fixedly installed at the bottom of the inner wall of the sterilization chamber (1). The motor (41) is fixedly installed at the bottom of the inner wall of the lifting cavity (4). The output shaft (411) is fixedly connected to the output end of the motor (41). The telescopic joint (412) is fixedly installed at the upper end of the output shaft (411). The threaded rod (413) is fixedly installed at the upper end of the telescopic joint (412). The upper end of the threaded rod (413) is connected to the bottom bearing of the placement cavity (5). The placement cavity (5) is located below the ultraviolet irradiator (3). A threaded hole is provided above the lifting cavity (4), and the threaded rod (413) is threaded into the threaded hole. The placement cavity (5) is equipped with a weight recognition module, and the inner wall of the motor (41) is equipped with a frequency adjustment module. The weight recognition module and the frequency adjustment module are electrically connected. The weight recognition module is used to identify the weight of the meat block stored in the placement cavity (5), and the frequency adjustment module is used to control the number of times the motor (41) rotates clockwise and counterclockwise according to the weight of the meat block. The placement cavity (5) is provided with a stirring plate (51), and a support plate (52) is fixed at the bottom of the stirring plate (51). A connecting rod (53) is fixed at the bottom of the support plate (52). Slide grooves are provided at the bottom of the placement cavity (5) and above the lifting cavity (4). The connecting rod (53) is inserted into the slide groove of the placement cavity (5), and a telescopic rod (54) is fixed at its lower end. A ball rod (55) is fixed at the lower end of the telescopic rod (54). The ball rod (55) is inserted into the slide groove of the lifting cavity (4), and a limit block (56) is fixed on the outer side of its upper end. The limit block (56) is in contact with the bottom surface of the slide groove. Slide rails are fixed on both sides of the bottom of the slide groove, and the limit block (56) is slidably connected to the slide rail. The bottom end of the cue stick (55) is fixed with a ball one (551), and the inner side of the ball one (551) is fixed with a ball two (552). The bottom bearing of the inner wall of the lifting cavity (4) is equipped with a gear disc (42). The outer side of the output shaft (411) is fixed with a gear (43) and meshes with the gear disc (42). The upper part of the gear disc (42) is connected to a compression ball (421) by a spring, and the compression ball (421) contacts the ball one (551) after the gear disc (42) rotates.

2. The UVC disinfection equipment for cold chain food as described in claim 1, characterized in that: A pneumatic chamber (44) is fixed to the front side of the inner wall of the lifting chamber (4). A pneumatic plate (441) is slidably connected to the inner wall of the pneumatic chamber (44). A pneumatic rod (442) is fixed to one side of the pneumatic plate (441). After the ball rod (55) moves, it comes into contact with the pneumatic rod (442). A push-pull plate (57) is fixed to the inner side of the ball rod (55). The air pressure plate (441) is spring-connected to the front side of the inner wall of the air pressure chamber (44). The front pipe of the air pressure chamber (44) is connected to the air chamber (45). The front side of the inner wall of the lifting chamber (4) is fixed with a slide cylinder (46). The slide cylinder (46) is slidably connected with a slide rod (461). After the slide rod (461) extends out, it contacts the push-pull plate (57). The front end of the slide rod (461) is spring-connected to the front side of the inner wall of the slide cylinder (46). The front side of the slide cylinder (46) is connected to the air chamber (45) pipe, and a pressure valve is installed in the pipe.

3. The UVC disinfection equipment for cold chain food as described in claim 2, characterized in that: The front side of the air pressure chamber (44) is connected to an external pipeline, and a one-way valve is installed inside the pipeline. The front side of the slide cylinder (46) is connected to an external control valve pipeline.

4. The UVC disinfection equipment for cold chain food as described in claim 3, characterized in that: The rear ends of the push-pull plate (57) and the slide bar (461) are both magnetic, and their magnetic poles are opposite.

5. The UVC disinfection equipment for cold chain food as described in claim 4, characterized in that: After the second sphere (552) rotates, the squeeze ball (421) comes into contact with the first sphere (551) and the second sphere (552).

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