Sterilization device capable of conveniently controlling temperature of premade dishes

Abstract

The invention relates to the technical field of prefabricated vegetable sterilization and storage, in particular to a prefabricated vegetable sterilization device convenient in temperature control, which comprises a sterilization cylinder, an annular partition plate is fixedly connected in the sterilization cylinder, and the annular partition plate divides the internal space of the sterilization cylinder into a first chamber and a second chamber; a containing cylinder is coaxially installed on the side, close to the second cavity, of the annular partition plate, a positioning ring is rotationally connected to the containing cylinder, two or more blades are arranged on the positioning ring, one side of each blade is attached to the outer surface of the containing cylinder, and two or more air inlet holes are formed in the side wall, away from the annular partition plate, of the containing cylinder. According to the device, through the arrangement of a filter pad, the dryness of steam at a sterilization position can be improved, and the situation that a large number of liquid drops are mixed in the steam to heat prefabricated dishes, so that the quality and taste of the prefabricated dishes are affected due to excessive moisture of the prefabricated dishes, and storage of the prefabricated dishes is not facilitated is prevented; the device has the function of dewatering the filter pad, so that the filtering effect of the filter pad is always higher.

Description

Technical Field

[0001] The invention relates to the technical field of sterilization and storage of pre-prepared dishes, and in particular to a sterilization device for pre-prepared dishes with convenient temperature control. Background Art

[0002] Pre-prepared meals (also known as pre-prepared dishes) are the product of food industrialization. They generally refer to semi-finished products made from various agricultural, livestock, poultry and aquatic products as raw materials, seasonings and other auxiliary materials, and processed through pre-selection, modulation and other processes. Usually, pre-prepared meals need to be stored or transported under cold chain conditions for consumers or catering processors to simply heat or cook before consumption.

[0003] Because pre-prepared meals have a wide variety of styles and relatively complex raw materials, they have high requirements for the freshness of the ingredients and storage conditions. Sterilization of pre-prepared meals is an important part of ensuring the safety of pre-prepared meals and extending their shelf life. By selecting appropriate sterilization technology and strictly controlling various parameters in the sterilization process, the quality and safety of pre-prepared meals can be ensured.

[0004] Chinese patent publication number CN118947840A discloses a sterilizing pot for processing pre-prepared dishes, which comprises an outer cylinder, a lid hingedly mounted on the outer side of the outer cylinder, a support leg fixedly mounted on the outer side of the outer cylinder, an exhaust pipe fixedly mounted on the outer side of the outer cylinder, a pressure relief pipe fixedly mounted on the outer side of the outer cylinder, and a reflux component, a cleaning component, a collection component and a pressure relief component are arranged on the outer side of the outer cylinder. In order to evenly distribute the temperature and pressure inside the device, the sterilizing pot for processing pre-prepared dishes is provided with a reflux component, which cooperates with a servo motor to drive a short rod to start rotating, so that a fan starts to rotate inside the device, so that the temperature inside the device is evenly distributed in every corner of the device, and the peripheral gears are driven to start rotating through the central gear, so that the peripheral gears rotate at a low speed and start to revolve around the central gear, so that the scraper cleans the outside of the filter cylinder.

[0005] The device uses steam to heat and sterilize pre-prepared dishes, but there are many small droplets suspended in the steam flow. The device does increase the dryness of the steam. Too many small droplets in the steam will increase the water content of the pre-prepared dishes, which will not only easily affect the quality and taste of the pre-prepared dishes, but also be detrimental to the storage of the pre-prepared dishes. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a sterilization device for pre-prepared dishes with convenient temperature control to solve the above problems.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A sterilization device with convenient temperature control for pre-prepared dishes comprises a sterilization cylinder, an annular partition is fixedly connected inside the sterilization cylinder, the annular partition divides the space inside the sterilization cylinder into a first chamber and a second chamber, a placement cylinder is coaxially mounted on a side of the annular partition close to the second chamber, a positioning ring is rotatably connected to the placement cylinder, the positioning ring is provided with more than two blades, one side of the blades is in contact with the outer surface of the placement cylinder, more than two air inlet holes are provided on the side wall of the placement cylinder away from the annular partition, a drying filter disc matching the air inlet hole is rotatably provided inside the sterilization cylinder, the drying filter disc is provided with an elastic protrusion, an engaging groove is provided on the inner wall of the positioning ring, and the elastic protrusion is engaged with the engaging groove;

[0009] The sterilization cylinder is provided with an air inlet pipe seat, and an arc-shaped slide groove is opened on the inner wall of the sterilization cylinder. A slider is slidably matched in the arc-shaped slide groove, and a closing plate for closing the output end of the air inlet pipe seat is fixedly connected to the side of the slider extending out of the arc-shaped slide groove, and a first spring is installed in the arc-shaped slide groove and on one side of the slider; a temperature-controlled telescopic rod mechanism matching the closing plate is provided on the positioning ring, and when the positioning ring rotates and the free end of the temperature-controlled telescopic rod mechanism is extended, the free end of the temperature-controlled telescopic rod mechanism abuts against the closing plate and causes the closing plate to slide along the direction of the arc-shaped slide groove.

[0010] Preferably, both sides of the sterilization cylinder are provided with detachable heads, a motor is installed on the head close to the second chamber, the output end of the motor is coaxially inserted into the second chamber and the end thereof is coaxially fixedly connected with a driving shaft.

[0011] Preferably, the drying filter disc comprises a turntable coaxially fixed on the driving shaft, the side of the placement cylinder away from the annular partition is in contact with the side of the turntable away from the motor, the turntable is provided with two or more air holes, the air inlet holes match the air holes, a filter pad is provided in the air holes, and the elastic protrusion is fixedly provided on the outer surface of the turntable.

[0012] Preferably, a mounting hole is opened on the side wall of the placement cylinder away from the annular partition, and an extrusion cap is slidably fitted in the mounting hole. A second spring is installed between the inner wall of the mounting hole and the extrusion cap. When the vent hole corresponds to the extrusion cap, the second spring pushes against the extrusion cap, so that the extrusion cap extends out of the mounting hole and is inserted into the interior of the vent hole, and the extrusion cap applies pressure to the filter pad.

[0013] Preferably, the temperature-controlled telescopic rod mechanism includes a bracket fixed on the positioning ring, the bracket is provided with a mounting groove in a direction perpendicular to the axis of the positioning ring, an annular block is provided in the mounting groove, the annular block divides the space inside the mounting groove into a guide cavity and a temperature sensing cavity, and the guide cavity is located on the side of the temperature sensing cavity away from the positioning ring.

[0014] Preferably, a piston is slidably fitted in the temperature sensing chamber, a piston rod is fixedly connected to the side of the piston close to the guide chamber, a push rod assembly is provided on the end of the piston rod inserted into the guide chamber, the other end of the piston rod passes through an annular block and extends to the interior of the guide chamber, and a temperature control deformable body is installed between the annular block and the piston.

[0015] Preferably, the push rod assembly includes a push rod slidably connected in the guide cavity, an adjustment groove is provided on the side of the push rod close to the annular block, one end of the piston rod is inserted into the guide cavity and extends into the interior of the adjustment groove, and an electric spring device is installed between its end and the inner wall of the adjustment groove.

[0016] Preferably, a first solenoid valve and a second solenoid valve are provided at the bottom of the sterilization cylinder, and input ends of the first solenoid valve and the second solenoid valve are fluidly connected to the first chamber and the second chamber, respectively.

[0017] Preferably, a photoelectric sensor is provided on the sterilization cylinder, a detection portion of the photoelectric sensor is arranged toward the closing plate, and the first solenoid valve is electrically connected to the photoelectric sensor.

[0018] The beneficial effects of the present invention are:

[0019] 1. The device can improve the dryness of the steam at the sterilization point by setting the filter pad, and prevent a large number of droplets mixed in the steam from heating the pre-prepared food, thereby causing the pre-prepared food to have too much moisture, affecting the quality and taste of the pre-prepared food, and being unfavorable for the storage of the pre-prepared food; the device has the function of dehydrating the filter pad, so that the filtering effect of the filter pad is always high.

[0020] 2. During the sterilization process of the device, as the sterilization time increases, when the temperature inside the device is lower than the set temperature, the air inlet seat automatically opens and injects steam into the inside of the device, so that the temperature inside the device increases, and the sterilization temperature is always close to constant, thereby ensuring the sterilization effect of the device; the device injects steam intermittently, and a certain diffusion time is left after the steam is injected, and the blades rotate in the opposite direction quickly to mix the gases in the device, thereby avoiding the temperature control accuracy affected by different temperatures in different places after the steam enters. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention.

[0022] Figure 2 The cross-sectional structure of the present invention is shown in FIG. Figure 1 .

[0023] Figure 3 The cross-sectional structure of the present invention is shown in FIG. Figure 2 .

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the support of the present invention.

[0025] Figure 5 For the present invention Figure 2 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0026] Figure 6 For the present invention Figure 2 Schematic diagram of the structure with a partial enlargement at point B in the middle.

[0027] Figure 7 For the present invention Figure 2 Schematic diagram of the structure with a partial enlargement at point C in the middle.

[0028] Figure 8 For the present invention Figure 3 Schematic diagram of the structure with a partial enlargement at point D in the middle.

[0029] In the attached drawings: 1. sterilizing cylinder; 2. annular partition; 3. first chamber; 4. second chamber; 5. placement cylinder; 6. positioning ring; 7. blades; 8. motor; 9. air inlet pipe seat; 10. arc-shaped slide groove; 11. elastic protrusion; 12. fitting groove; 13. closing plate; 14. first spring; 15. end cap; 16. drive shaft; 17. turntable; 18. filter pad; 19. air inlet hole; 20. air vent; 21. extrusion cap; 22. second spring; 23. bracket; 24. annular block; 25. guide cavity; 26. temperature sensing cavity; 27. piston; 28. piston rod; 29. ​​temperature control deformable body; 30. push rod; 31. adjustment groove; 32. electric spring device; 33. controller; 34. first solenoid valve; 35. second solenoid valve; 36. mounting hole; 37. photoelectric sensor; 38. slider. DETAILED DESCRIPTION

[0030] The following will refer to Figures 1 to 8 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0031] First embodiment:

[0032] A sterilization device for pre-prepared dishes with convenient temperature control, such as Figure 1 and Figure 2 As shown, it includes a sterilization cylinder 1, an annular partition 2 is fixedly connected inside the sterilization cylinder 1, and the annular partition 2 divides the space inside the sterilization cylinder 1 into a first chamber 3 and a second chamber 4. Both sides of the sterilization cylinder 1 are detachable with a head 15, and a placement cylinder 5 is coaxially installed on one side of the annular partition 2 close to the second chamber 4. The placement cylinder 5 is used to place pre-prepared dishes, such as Figure 1 As shown, the left end cap 15 is connected to the sterilization cylinder 1 via a hinge, and the right end cap 15 is connected to the sterilization cylinder 1 via bolts, so that the staff can open the device according to needs.

[0033] like Figure 1 and Figure 2 As shown, a motor 8 is installed on the head 15 close to the second chamber 4. The motor 8 is a servo motor. The motor 8 can control the rotation speed. The output end of the motor 8 is coaxially inserted into the second chamber 4 and the end thereof is coaxially fixedly connected with a drive shaft 16.

[0034] An air inlet pipe seat 9 is provided on the sterilization cylinder 1, and the air inlet pipe seat 9 is connected to an external steam supply device, such as an electric heating steam boiler. A first solenoid valve 34 and a second solenoid valve 35 are provided at the bottom of the sterilization cylinder 1. The input ends of the first solenoid valve 34 and the second solenoid valve 35 are fluidly connected to the first chamber 3 and the second chamber 4 respectively.

[0035] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, more than two air inlet holes 19 are provided on the side wall of the placement cylinder 5 away from the annular partition 2, and a drying filter disc matching the air inlet holes 19 is rotatably arranged in the sterilization cylinder 1; the drying filter disc includes a turntable 17 coaxially fixed on the drive shaft 16, and the side of the placement cylinder 5 away from the annular partition 2 is in contact with the side of the turntable 17 away from the motor 8, and more than two air vents 20 are provided on the turntable 17, and the air inlet holes 19 match the air vents 20. The diameters of the air inlet holes 19 and the air vents 20 are set according to demand and are not specifically limited. A filter pad 18 is arranged in the air vent 20, and the filter pad 18 is made of a porous hydrophilic material, such as a sponge with good air permeability and water absorption. The setting of the filter pad 18 needs to ensure smooth gas flow between the second chamber 4 and the placement cylinder 5, and can absorb moisture in the passing gas.

[0036] When the air inlet 19 corresponds to the air vent 20, the steam in the second chamber 4 passes through the air vent 20 and the air inlet 19 in sequence and finally flows into the interior of the placement tube 5, thereby heating and sterilizing the pre-prepared dishes in the placement tube 5. It should be noted that when the steam passes through the air vent 20, the filter pad 18 can absorb small droplets suspended in the steam flow, thereby increasing the dryness of the steam and preventing a large number of small droplets from being mixed in the steam to heat the pre-prepared dishes, thereby causing the pre-prepared dishes to have too much moisture, affecting the quality and taste of the pre-prepared dishes, and being unfavorable for the storage of the pre-prepared dishes.

[0037] A mounting hole 36 is provided on the side wall of the placement tube 5 away from the annular partition 2, and an extrusion cap 21 is slidably fitted in the mounting hole 36. A second spring 22 is installed between the inner wall of the mounting hole 36 and the extrusion cap 21. When the vent hole 20 corresponds to the extrusion cap 21, the second spring 22 pushes against the extrusion cap 21, so that the extrusion cap 21 extends out of the mounting hole 36 and is inserted into the interior of the vent hole 20. The extrusion cap 21 applies pressure to the filter pad 18, thereby squeezing out the liquid in the filter pad 18 and achieving dehydration of the filter pad 18.

[0038] The working principle of the device in this embodiment is as follows: the sealing head 15 close to the first chamber 3 is opened, and then the carrier containing the pre-prepared dish is placed inside the placing cylinder 5, and then the sealing head 15 is reset to close the device.

[0039] The device is provided with a controller 33, which controls the motor 8 to start and enables the external steam supply device to inject steam into the second chamber 4 through the air inlet pipe seat 9. The motor 8 drives the drive shaft 16 to rotate at a low speed, and the turntable 17 rotates. When the turntable 17 rotates until the air inlet hole 19 is aligned with the air vent 20, the steam in the second chamber 4 passes through the air vent 20 and the air inlet hole 19 in turn, and finally fills the placement tube 5 and the first chamber 3. After the steam enters the placement tube 5, it can heat and sterilize the pre-prepared dishes inside it. It should be noted that when the steam passes through the air vent 20, the filter pad 18 can absorb small droplets suspended in the steam flow, thereby improving the dryness of the steam and preventing a large number of droplets mixed in the steam from heating the pre-prepared dishes, thereby affecting the quality and taste of the pre-prepared dishes.

[0040] It is worth mentioning that, through the coordinated arrangement of the sterilization cylinder 1 and the placement cylinder 5, during the heating and sterilization process of the pre-prepared dishes in the placement cylinder 5, since the placement cylinder 5 is not in direct contact with the outside world, the heat release rate of the placement cylinder 5 can be reduced, that is, the rapid heat release of the steam in the placement cylinder 5 is prevented, which causes the sterilization temperature to drop rapidly.

[0041] During the rotation of the turntable 17, when the turntable 17 rotates until the vent 20 is aligned with the squeezing cap 21, the second spring 22 pushes against the squeezing cap 21 to make the squeezing cap 21 extend out of the mounting hole 36, and the squeezing cap 21 is inserted into the vent 20 and squeezes the filter pad 18, thereby squeezing out the liquid in the filter pad 18, and the turntable 17 rotates continuously with the filter pad 18 to achieve dehydration of the filter pad 18, thereby ensuring that the filtering effect of the filter pad 18 is always high; it should be noted that the end of the squeezing cap 21 inserted into the vent 20 is set to an arc shape, and the squeezing cap 21 can slide in the mounting hole 36 when cooperating with the squeezing cap 21. During the rotation of the turntable 17, when the inner wall of the vent 20 pushes against the squeezing cap 21, the squeezing cap 21 is retracted into the mounting hole 36, so that the vent 20 and the squeezing cap 21 are separated, so the squeezing cap 21 will not block the movement of the turntable 17.

[0042] During the sterilization process, part of the steam inside the device will condense into liquid. After the sterilization work is completed, the first solenoid valve 34 and the second solenoid valve 35 are opened, and the gas and liquid in the first chamber 3 are discharged from the first solenoid valve 34, and the gas and liquid in the second chamber 4 are discharged from the second solenoid valve 35.

[0043] Second embodiment:

[0044] Based on the fact that during the use of the device in the first embodiment, as the sterilization time increases, the temperature inside the device will gradually decrease, resulting in a decrease in the sterilization effect. To address the above problem, the device in this embodiment has been improved as follows:

[0045] like Figure 2 and Figure 3 As shown, a positioning ring 6 is rotatably connected to the placement tube 5, and more than two blades 7 are provided on the positioning ring 6. The blades 7 are made of metal with high thermal conductivity, and one side of the blades 7 is in contact with the outer surface of the placement tube 5. Through the arrangement of the blades 7, the efficiency of heat transfer from the steam in the second chamber 4 to the placement tube 5 can be improved. Combined with the second chamber 4 being connected to the inside of the placement tube 5, the temperatures in the second chamber 4 and the placement tube 5 are made to be close to the same.

[0046] like Figure 2 and Figure 5 As shown, the drying filter disc is provided with an elastic protrusion 11, and the inner wall of the positioning ring 6 is provided with an engaging groove 12 matching the elastic protrusion 11. The elastic protrusion 11 is engaged with the engaging groove 12, and the elastic protrusion 11 is fixedly arranged on the outer surface of the rotating disc 17.

[0047] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, an arc-shaped slide groove 10 is opened on the inner wall of the sterilization cylinder 1, and a slider 38 is slidably fitted in the arc-shaped slide groove 10. A closing plate 13 for closing the output end of the air inlet pipe seat 9 is fixedly connected to one side of the slider 38 extending out of the arc-shaped slide groove 10, and a first spring 14 is installed in the arc-shaped slide groove 10 and on one side of the slider 38.

[0048] like Figure 2-Figure 4 and Figure 7 As shown, the positioning ring 6 is provided with a temperature-controlled telescopic rod mechanism that matches the closing plate 13. When the positioning ring 6 rotates and the free end of the temperature-controlled telescopic rod mechanism extends, the free end of the temperature-controlled telescopic rod mechanism abuts against the closing plate 13 and causes the closing plate 13 to slide along the arc-shaped slide groove 10. The temperature-controlled telescopic rod mechanism includes a bracket 23 fixed to the positioning ring 6, and a mounting groove is provided on the bracket 23 in a direction perpendicular to the axis of the positioning ring 6. An annular block 24 is provided in the mounting groove, and the annular block 24 divides the space inside the mounting groove into a guide cavity 25 and a sensing cavity 26. The temperature chamber 26 and the guide chamber 25 are located on the side of the temperature sensing chamber 26 away from the positioning ring 6; a piston 27 is slidably fitted in the temperature sensing chamber 26, and a piston rod 28 is fixedly connected to the side of the piston 27 close to the guide chamber 25. A push rod assembly is provided on one end of the piston rod 28 inserted into the guide chamber 25, and the other end of the piston rod 28 passes through the annular block 24 and extends to the inside of the guide chamber 25. A temperature control deformable body 29 is installed between the annular block 24 and the piston 27. The temperature control deformable body 29 is made of shape memory alloy and will deform according to temperature changes.

[0049] like Figure 4As shown, the push rod assembly includes a push rod 30 slidably connected in the guide cavity 25, and an adjustment groove 31 is opened on the side of the push rod 30 close to the annular block 24. One end of the piston rod 28 inserted into the guide cavity 25 extends to the inside of the adjustment groove 31, and an electric spring device 32 is installed between its end and the inner wall of the adjustment groove 31. The electric spring device 32 is a prior art, which is equivalent to an energized solenoid. Each turn of the spring is equivalent to a circular current. The current direction in each turn of the spring is the same. According to the mutual attraction between the same-direction currents, each turn of the spring attracts the adjacent springs, so the electric spring device 32 will contract as a whole; by adjusting the current intensity on the electric spring device 32, the expansion and contraction of the electric spring device 32 can be controlled, that is, the length of the piston rod 28 inserted into the guide cavity 25 is adjusted.

[0050] like Figure 2 and Figure 7 As shown, a photoelectric sensor 37 is provided on the sterilization cylinder 1 , the detection portion of the photoelectric sensor 37 is arranged toward the closing plate 13 , and the first solenoid valve 34 is electrically connected to the photoelectric sensor 37 .

[0051] The working principle of the device in this embodiment is as follows: Based on the first embodiment, during the sterilization process of the device in this embodiment, the motor 8 always drives the driving shaft 16 to rotate, the turntable 17 rotates with the positioning ring 6 (at this time the elastic protrusion 11 and the engaging groove 12 are in an engaging state), the blades 7 rotate and make the gas in the device flow, so that the temperature at various locations in the device is close to the same.

[0052] As the sterilization time increases, when the temperature in the device is lower than the set temperature, the temperature control deformable body 29 contracts and pulls the piston 27 away from the positioning ring 6, the piston rod 28 extends out of the temperature sensing chamber 26 and abuts against the electric spring device 32, pushing the push rod 30 out of the guide chamber 25. Since the turntable 17 is in a rotating state at this time, that is, the positioning ring 6 and the bracket 23 are in a rotating state, when the bracket 23 rotates until the push rod 30 abuts against the closing plate 13, the closing plate 13 and the slider 38 slide along the arc-shaped slide groove 10, and the closing plate 13 is no longer at the output end of the closed air inlet pipe seat 9. The external steam supply equipment inputs steam into the second chamber 4 through the air inlet pipe seat 9, and the first spring 14 is stretched to store force. When the slider 38 slides to the limit (slides to the end of the arc-shaped slide groove 10), the push rod 30 can no longer push the closing plate 13. At this time, when the turntable 17 continues to rotate, the elastic protrusion 11 is squeezed and deformed and disengaged from the engaging groove 12. The first spring 14 releases its force, contracts and pulls the slider 38 to quickly reset the closing plate 13. The closing plate 13 closes the output end of the intake pipe seat 9. When the closing plate 13 is reset, it pushes against the push rod 30, causing the bracket 23 to quickly rotate in the opposite direction with the positioning ring 6. The blades 7 quickly rotate in the opposite direction and disturb the gas in the device, thereby improving the mixing efficiency of the gas in the device, making the temperature of each place in the device close to the same, and improving the accuracy of temperature detection of the device.

[0053] When the turntable 17 continues to rotate until the elastic protrusion 11 is re-engaged with the engaging groove 12, the turntable 17 continues to rotate and will rotate the positioning ring 6 and the bracket 23 again. The air inlet pipe seat 9 is opened again to inject steam into the second chamber 4 again. As the steam is gradually injected, the temperature inside the device gradually increases, and the temperature control deformable body 29 gradually expands, and the piston 27 pushes the piston rod 28 to move closer to the positioning ring 6, so that the push rod 30 is gradually retracted into the guide cavity 25. When the temperature inside the device rises to the set value, the temperature control deformable body 29 expands until the push rod 30 is completely retracted into the guide cavity 25. At this time, when the turntable 17 continues to rotate with the positioning ring 6 and the bracket 23, the push rod 30 can no longer push the closing plate 13, that is, the air inlet pipe seat 9 will not open again; as the sterilization time is extended and the temperature inside the device is lowered, the temperature inside the device is always kept close to constant by adding steam, thereby ensuring the sterilization effect of the device.

[0054] It should be noted that the device can adjust the set temperature according to demand. This embodiment takes increasing the set temperature as an example. When the set temperature needs to be increased, the current intensity on the electric spring device 32 is reduced, the electric spring device 32 is expanded, and the piston rod 28 is withdrawn from the adjustment groove 31. At this time, a higher temperature is required to make the temperature-controlled deformation body 29 obtain a larger expansion amount so that the push rod 30 can be completely retracted into the guide cavity 25.

[0055] It is worth noting that the air intake pipe seat 9 is an intermittent air intake. The device adopts a small amount of steam replenishment and multiple times of steam replenishment. The steam has a certain diffusion time after entering, and the blades 7 rotate rapidly in the opposite direction to mix the gases in the device, thereby improving the accuracy of the temperature control of the device and avoiding the temperature control accuracy being affected by different temperatures at different locations after the steam enters.

[0056] It should be noted that as the sterilization time increases and the temperature inside the device decreases, some condensed water will exist in the first chamber 3; when the closing plate 13 moves to open the air inlet pipe seat 9, the detection part of the photoelectric sensor 37 no longer corresponds to the closing plate 13, and the photoelectric sensor 37 transmits a signal to the controller 33 to control the opening of the first solenoid valve 34, and the gas and liquid in the first chamber 3 are discharged from the first solenoid valve 34, while accelerating the diffusion speed of the gas in the second chamber 4 to the placement tube 5.

[0057] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0058] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A sterilization device for pre-prepared food with convenient temperature control, comprising a sterilization cylinder (1), characterized in that: An annular partition (2) is fixedly connected inside the sterilization cylinder (1), and the annular partition (2) divides the space inside the sterilization cylinder (1) into a first chamber (3) and a second chamber (4). A placement cylinder (5) is coaxially mounted on one side of the annular partition (2) close to the second chamber (4). A positioning ring (6) is rotatably connected to the placement cylinder (5), and the positioning ring (6) is provided with more than two blades (7). The side wall of the placement cylinder (5) away from the annular partition (2) is provided with more than two air inlet holes (19). A drying filter disc matching the air inlet holes (19) is rotatably arranged inside the sterilization cylinder (1), and the drying filter disc is provided with an elastic protrusion (11). An engaging groove (12) matching the elastic protrusion (11) is provided on the inner wall of the positioning ring (6); The sterilization cylinder (1) is provided with an air inlet pipe seat (9), and an arc-shaped slide groove (10) is opened on the inner wall of the sterilization cylinder (1). A slider (38) is slidably matched in the arc-shaped slide groove (10). The side of the slider (38) extending out of the arc-shaped slide groove (10) is fixedly connected with a closing plate (13) for closing the output end of the air inlet pipe seat (9), and a first spring (14) is installed in the arc-shaped slide groove (10) and on one side of the slider (38); a temperature control telescopic rod mechanism matching the closing plate (13) is provided on the positioning ring (6), and when the positioning ring (6) rotates and the free end of the temperature control telescopic rod mechanism is extended, the free end of the temperature control telescopic rod mechanism abuts against the closing plate (13) and causes the closing plate (13) to slide along the direction of the arc-shaped slide groove (10).

2. A sterilization device for pre-prepared food with convenient temperature control according to claim 1, characterized in that: Both sides of the sterilization cylinder (1) are provided with detachable heads (15), a motor (8) is installed on the head (15) close to the second chamber (4), the output end of the motor (8) is coaxially inserted into the second chamber (4) and the end thereof is coaxially fixedly connected to a drive shaft (16), and one side of the blade (7) is in contact with the outer surface of the placement cylinder (5).

3. A sterilization device with convenient temperature control for pre-prepared food according to claim 2, characterized in that: The drying filter disc comprises a rotating disc (17) coaxially fixed on a driving shaft (16); a side of the placement cylinder (5) away from the annular partition (2) is in contact with a side of the rotating disc (17) away from the motor (8); the rotating disc (17) is provided with more than two ventilation holes (20); the air inlet holes (19) match the ventilation holes (20); a filter pad (18) is provided in the ventilation holes (20); the elastic protrusion (11) is fixedly arranged on the outer surface of the rotating disc (17); the elastic protrusion (11) is in contact with the engaging groove (12).

4. A sterilization device with convenient temperature control for pre-prepared food according to claim 3, characterized in that: A mounting hole (36) is provided on the side wall of the placement tube (5) away from the annular partition (2), and a pressing cap (21) is slidably fitted in the mounting hole (36). A second spring (22) is installed between the inner wall of the mounting hole (36) and the pressing cap (21). When the vent hole (20) corresponds to the pressing cap (21), the second spring (22) presses against the pressing cap (21), so that the pressing cap (21) extends out of the mounting hole (36) and is inserted into the interior of the vent hole (20), and the pressing cap (21) applies pressure to the filter pad (18).

5. The sterilization device for pre-prepared food with convenient temperature control according to claim 1, characterized in that: The temperature-controlled telescopic rod mechanism comprises a bracket (23) fixed on a positioning ring (6); a mounting groove is provided on the bracket (23) in a direction perpendicular to the axis of the positioning ring (6); an annular block (24) is provided in the mounting groove; the annular block (24) divides the space inside the mounting groove into a guide cavity (25) and a temperature sensing cavity (26); the guide cavity (25) is located on a side of the temperature sensing cavity (26) away from the positioning ring (6).

6. A sterilization device for pre-prepared food with convenient temperature control according to claim 5, characterized in that: A piston (27) is slidably fitted in the temperature sensing cavity (26); a piston rod (28) is fixedly connected to a side of the piston (27) close to the guide cavity (25); a push rod assembly is provided on one end of the piston rod (28) inserted into the guide cavity (25); the other end of the piston rod (28) passes through an annular block (24) and extends to the inside of the guide cavity (25); a temperature control deformable body (29) is installed between the annular block (24) and the piston (27).

7. A sterilization device for pre-prepared food with convenient temperature control according to claim 6, characterized in that: The push rod assembly comprises a push rod (30) slidably connected in a guide cavity (25); an adjustment groove (31) is provided on a side of the push rod (30) close to the annular block (24); one end of the piston rod (28) is inserted into the guide cavity (25) and extends into the interior of the adjustment groove (31); and an electric spring device (32) is installed between the end of the piston rod and the inner wall of the adjustment groove (31).

8. The sterilization device for pre-prepared food with convenient temperature control according to claim 1, characterized in that: A first solenoid valve (34) and a second solenoid valve (35) are provided at the bottom of the sterilization cylinder (1); input ends of the first solenoid valve (34) and the second solenoid valve (35) are fluidically connected to the first chamber (3) and the second chamber (4), respectively.

9. The sterilization device for pre-prepared food with convenient temperature control according to claim 8, characterized in that: The sterilization cylinder (1) is provided with a photoelectric sensor (37), the detection portion of the photoelectric sensor (37) is arranged toward the sealing plate (13), and the first solenoid valve (34) is electrically connected to the photoelectric sensor (37).

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