Ultrahigh pressure sterilization device for litchi juice production

Abstract

The invention discloses an ultrahigh-pressure sterilization device for litchi juice production, and belongs to the field of juice processing, the ultrahigh-pressure sterilization device comprises a sterilization kettle body mounted in a mounting bracket, a cavity for conveying temperature control gas is formed in the sterilization kettle body, and a sealing cover plate is mounted at an opening in the upper end of the sterilization kettle body. Temperature control gas required during sterilization of litchi juice can be stably conveyed, part of the temperature control gas is introduced into the temperature adjusting metal plate during conveying, the temperature adjusting metal plate is used for stably adjusting and controlling the temperature of the litchi juice in the middle end area of the sterilization kettle main body, and the situation that the temperature is not uniform is prevented; and the temperature of the juice in the equipment is more uniform, so that the overall quality of the juice is ensured.

Description

Technical Field

[0001] The invention belongs to the field of fruit juice processing, and in particular relates to an ultra-high pressure sterilization device for producing litchi juice. Background Art

[0002] Lychee juice is a common beverage nowadays. It needs to go through multiple processes during processing, the most important of which is high-pressure sterilization. Generally, a special high-pressure sterilizer is used to sterilize the juice. The high temperature of the steam itself is used to treat the bacteria in the lychee juice, which can effectively extend the shelf life of the juice itself and ensure the taste of the lychee juice when it is consumed later.

[0003] When sterilizing fruit juice, the existing sterilizing kettle generally heats the fruit juice in the kettle by steam heating, but the steam is generally directly input into the cavity inside the shell. This method easily leads to the fruit juice in the middle end, far away from the inner wall of the shell, not being heated evenly, resulting in the heating and sterilization effect of the equipment itself being affected. In addition, the difference in temperature will have a certain impact on the taste of the fruit juice produced inside the sterilizing kettle, resulting in taste deviation. For ultra-high pressure production equipment, ultra-high pressure can be used to achieve the sterilization effect, but in the actual production process of ultra-high pressure equipment, it is still necessary to pay attention to temperature control, that is, it is necessary to ensure that the temperature inside the sterilizing kettle is in a relatively reasonable state. At the same time, in order to ensure the uniformity of the taste of the fruit juice inside the sterilizing kettle, it is also necessary to ensure that the temperature inside the entire sterilizing kettle is the same, and the taste of the fruit juice produced by the entire sterilizing kettle will not be different due to local temperature differences. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In order to solve the problems raised in the above background technology, the present invention adopts the following technical solutions.

[0006] A super-high pressure sterilization device for producing litchi juice comprises a sterilization kettle body installed in a mounting bracket, a cavity for conveying temperature-controlling gas is provided inside the sterilization kettle body, a closed cover is installed at the opening at the upper end of the sterilization kettle body, a temperature control mechanism for temperature-controlling litchi juice is installed inside the sterilization kettle body, the temperature control mechanism comprises a gas input pipe, a gas discharge pipe and a temperature control component, the gas input pipe is installed on the side of the sterilization kettle body, the gas discharge pipe is installed on the other side of the side of the sterilization kettle body relative to the gas input pipe, the gas input pipe is connected with the sterilization kettle body, the gas discharge pipe is connected with the sterilization kettle body, the gas input pipe, the gas discharge pipe and the cavity inside the sterilization kettle body are combined to form a channel for conveying temperature-controlling gas, the temperature control component is installed on the inner wall of the sterilization kettle body, and the temperature control component uniformly regulates the temperature of the juice in the middle end of the sterilization kettle body.

[0007] As a preferred technical solution of the present invention, the temperature control component includes a support rod, a mounting seat and a temperature control metal plate. The mounting seat is fixedly installed on the inner wall surface of the sterilization kettle body, the support rod is installed on the top of the mounting seat, and multiple groups of temperature control metal plates are installed on the outside of the support rod. The mounting seat, the support rod and the temperature control metal plate jointly open a middle-end temperature control cavity, and the middle-end temperature control cavity is connected to the internal cavity of the sterilization kettle body.

[0008] As a preferred technical solution of the present invention, the temperature-adjusting metal plates are arranged in multiple groups, and the spacing between the multiple groups of temperature-adjusting metal plates located at the top end of the support rod is smaller than the spacing between the multiple groups of temperature-adjusting metal plates located at the bottom end of the support rod, and the outer part of the temperature-adjusting metal plates is conical.

[0009] As a preferred technical solution of the present invention, a reinforcement block is installed at the bottom end of the support rod, and the equidistant threads in the reinforcement block are installed on the reinforcement screw rod, and the reinforcement screw rod passes through the reinforcement block and is threadedly connected to the mounting seat.

[0010] As a preferred technical solution of the present invention, the temperature control mechanism also includes a stirring component driven by the flow of temperature-controlled gas, the stirring component is symmetrically installed on the inner wall of the sterilizer body, and the internal components of the stirring component are used to stir the juice inside the sterilizer body.

[0011] As a preferred technical solution of the present invention, the stirring assembly includes a mounting shell, a rotating connecting rod, a stirring rod, a first bevel gear and a driving member. The mounting shell is installed on the inner wall of the sterilization kettle body, the rotating connecting rod is rotatably installed in the mounting shell, the stirring rod is fixedly installed on the top of the rotating connecting rod, the first bevel gear is fixedly installed on the bottom of the rotating connecting rod, and a driving member is arranged on the side of the mounting shell.

[0012] As a preferred technical solution of the present invention, the driving member is composed of a conduction connecting rod, a driving wheel and a second bevel gear. The conduction connecting rod passes through the mounting shell and is rotatably connected to the sterilization kettle body. The driving wheel is fixedly installed on the end of the conduction connecting rod. The second bevel gear is fixedly installed on the side of the end of the conduction connecting rod away from the driving wheel. The second bevel gear is meshingly connected with the first bevel gear.

[0013] As a preferred technical solution of the present invention, the device also includes a lifting mechanism for controlling the height of the closed cover plate, the lifting mechanism includes a movable bracket and an electric push rod, the movable bracket is symmetrically installed on the side of the closed cover plate, the electric push rod is fixedly installed on the mounting bracket, and the output end of the electric push rod is fixedly connected to the movable bracket.

[0014] As a preferred technical solution of the present invention, the lifting mechanism also includes a matching tube and a negative pressure tube. The matching tube is installed on the upper surface of the closed cover plate, and the matching tube is connected to the interior of the sterilization kettle body through the closed cover plate. The negative pressure tube is installed on the side of the upper surface of the closed cover plate away from the matching tube, and the negative pressure tube is connected to the interior of the sterilization kettle body through the closed cover plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) In the present invention, by providing a temperature control mechanism, the temperature required for the production of lychee juice can be controlled. First, the temperature control gas is stably transported, and part of the temperature control gas is introduced into the temperature control metal plate during transportation. The temperature control metal plate is used to stably control the temperature of the lychee juice in the middle area of ​​the sterilizing kettle body, thereby preventing the occurrence of uneven temperature near the inside of the sterilizing kettle body, making the temperature of the juice in the equipment more uniform, thereby ensuring that the juice produced inside the equipment will not have a different taste due to uneven temperature.

[0017] (2) In the present invention, by setting up a lifting mechanism, the closed cover plate can be stably lifted and lowered, and the opening at the top of the sterilization kettle body can be quickly closed and opened, which changes the traditional method that requires workers to open and close manually, making the opening and closing of the closed cover plate more labor-saving and convenient, thereby speeding up the overall working efficiency of the equipment and ensuring the stability of the equipment's own operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention.

[0019] Figure 2 It is a cross-sectional view of the main structure of the sterilizing kettle of the present invention.

[0020] Figure 3 It is a three-dimensional diagram of the temperature control mechanism structure of the present invention.

[0021] Figure 4It is a schematic diagram of the structure of the temperature control component in the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the support rod and the mounting seat in the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the stirring assembly in the present invention.

[0024] Figure 7 It is a structural schematic diagram of the lifting mechanism in the present invention.

[0025] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0026] 1. Mounting bracket; 2. Sterilization kettle body; 3. Closing cover; 4. Temperature control mechanism; 41. Gas input pipe; 42. Gas exhaust pipe; 43. Temperature control assembly; 431. Support rod; 432. Mounting seat; 433. Temperature adjustment metal plate; 44. Stirring assembly; 441. Mounting shell; 442. Rotating connecting rod; 443. Stirring rod; 444. First bevel gear; 445. Driving member; 5. Lifting mechanism; 51. Moving bracket; 52. Electric push rod; 53. Matching pipe; 54. Negative pressure pipe. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0030] Depend on Figure 1 and Figure 2 As shown, it is a structural schematic diagram of the ultra-high pressure sterilization device in this embodiment. The ultra-high pressure sterilization device includes a sterilization kettle body 2 installed in a mounting bracket 1. A cavity for conveying temperature-controlled gas is opened inside the sterilization kettle body 2. A closed cover plate 3 is installed at the upper opening of the sterilization kettle body 2. A temperature control mechanism 4 for uniformly regulating the temperature of litchi juice is installed inside the sterilization kettle body 2.

[0031] During use, the sterilizing kettle body 2 is installed as a whole to the target position by using the mounting bracket 1, and then the lychee juice to be sterilized is input into the sterilizing kettle body 2, and the temperature of the lychee juice inside the sterilizing kettle body 2 is evenly regulated by the cooperation of the temperature control mechanism 4 and the internal cavity of the sterilizing kettle body 2, so that the temperature of the juice inside the sterilizing kettle body 2 is uniform, thereby avoiding the occurrence of different tastes due to uneven temperature inside the sterilizing kettle body 2, and by using the closing cover 3, the internal space of the sterilizing kettle body 2 can be quickly closed and opened, so that it is convenient to cooperate with subsequent components to perform high-pressure treatment on the sterilizing kettle body 2, thereby ensuring the working quality of the equipment itself when sterilizing the lychee juice.

[0032] By the attached Figure 3 As shown, it is a structural schematic diagram of the temperature control mechanism 4 in this embodiment, the temperature control mechanism 4 includes a gas input pipe 41, a gas exhaust pipe 42 and a temperature control component 43, the gas input pipe 41 is installed on the side of the sterilization kettle body 2, the gas exhaust pipe 42 is installed on the side of the sterilization kettle body 2 opposite to the other side of the gas input pipe 41, and the gas input pipe 41 is connected with the sterilization kettle body 2, the gas exhaust pipe 42 is connected with the sterilization kettle body 2, the gas input pipe 41, the gas exhaust pipe 42 and the internal cavity of the sterilization kettle body 2 are combined to form a channel for conveying temperature control gas, the temperature control component 43 is installed on the inner wall of the sterilization kettle body 2, and the temperature control component 43 evenly controls the temperature of the juice in the middle end of the sterilization kettle body 2.

[0033] During use, the temperature-controlled gas with suitable temperature is input into the cavity inside the sterilizing kettle body 2 through the use and cooperation of the gas input pipe 41 and the externally connected pump body, and the temperature environment of the lychee juice in the sterilizing kettle body 2 is maintained by utilizing the energy conduction of the inner wall of the sterilizing kettle body 2. Moreover, the temperature-controlled gas in the cavity inside the sterilizing kettle body 2 is guided through the use of the temperature-controlled component 43, so that the temperature of the temperature-controlled gas flows into the temperature-controlled component 43, and the temperature of the temperature-controlled component 43 itself is adjusted, so that the temperature-controlled component 43 can adjust the temperature of the juice away from the inner wall of the sterilizing kettle body 2, so that when the lychee juice is sterilized inside the sterilizing kettle body 2, the overall temperature is more uniform, thereby ensuring the stability of the equipment itself during operation. After the temperature control is completed, the gas exhaust pipe 42 can output the temperature-controlled gas inside the sterilizing kettle body 2, so as to facilitate the subsequent recycling of the temperature-controlled gas.

[0034] By the attached Figure 4As shown, it is a structural schematic diagram of the temperature control component 43 in this embodiment, the temperature control component 43 includes a support rod 431, a mounting seat 432 and a temperature control metal plate 433, the mounting seat 432 is fixedly installed on the inner wall surface of the sterilization kettle body 2, the support rod 431 is installed on the top of the mounting seat 432, and multiple groups of temperature control metal plates 433 are installed on the outside of the support rod 431, and the mounting seat 432, the support rod 431 and the temperature control metal plate 433 are jointly provided with a middle temperature control cavity, and the middle temperature control cavity is connected to the internal cavity of the sterilization kettle body 2.

[0035] During use, the temperature-control gas in the cavity of the sterilizing kettle body 2 is input into the temperature-control metal plate 433 through the cooperation of the support rod 431 and the mounting seat 432. The temperature-control metal plate 433 is regulated by the temperature-control gas, and the overall temperature of the temperature-control metal plate 433 is adjusted until the expected value is reached. At this time, the temperature-control metal plate 433 uses its own structure and shape to fully contact the lychee juice in the middle area of ​​the sterilizing kettle body 2, and stably controls the temperature of this part of the juice that cannot contact the inner wall of the sterilizing kettle body 2, so that the temperature of the lychee juice inside the sterilizing kettle body 2 is uniform, thereby preventing the occurrence of uneven temperature in the sterilizing kettle body 2 and ensuring the overall taste of the juice.

[0036] By the attached Figure 4 As shown, the temperature-adjusting metal plates 433 are provided in multiple groups, and the spacing between the multiple groups of temperature-adjusting metal plates 433 located at the top of the support rod 431 is smaller than the spacing between the multiple groups of temperature-adjusting metal plates 433 located at the bottom of the support rod 431, and the outer part of the temperature-adjusting metal plates 433 is conical.

[0037] During use, the temperature regulating metal plate 433 is in a cone shape as a whole. After the subsequent juice sterilization is completed, the lychee juice can automatically slide along the outer surface of the temperature regulating metal plate 433, which is convenient for the subsequent centralized collection of the lychee juice and prevents the lychee juice from remaining on the outer surface of the temperature regulating metal plate 433 and causing pollution to the next batch of lychee juice. The closer the temperature regulating metal plate 433 is to the top area of ​​the support rod 431, the smaller the spacing between the temperature regulating metal plates 433. This method can expand the contact area between the temperature regulating metal plate 433 and the juice in the middle area, especially the area far away from the inner wall of the sterilization kettle body 2, and use multiple groups of temperature regulating metal plates 433 with smaller spacing to comprehensively adjust the temperature of the juice in this area.

[0038] By the attached Figure 5 As shown, a reinforcement block is installed at the bottom end of the support rod 431, and the equidistant threads in the reinforcement block are installed on the reinforcement screw, and the reinforcement screw passes through the reinforcement block and is threadedly connected to the mounting seat 432.

[0039] During use, the support rod 431 is installed on the upper surface of the mounting seat 432. At this time, the support rod 431 is aligned with the internal hole groove of the mounting seat 432 to ensure that the temperature-controlled gas can pass through the mounting seat 432 and the support rod 431 to enter the temperature-adjusting metal plate 433. Thereafter, with the cooperation and use of the reinforcing screw, the support rod 431 and the top component are reinforced and installed, which simplifies the overall installation steps of the equipment and facilitates the replacement of the temperature control component 43 of the corresponding length according to the total amount of lychee juice that needs to be sterilized, so that the temperature control component 43 can adapt to lychee juice with different liquid levels, thereby expanding the scope of application of the equipment itself.

[0040] By the attached Figure 6 As shown, it is a structural schematic diagram of the stirring component 44 in this embodiment. The temperature control mechanism 4 also includes a stirring component 44 driven by the flow of temperature-controlled gas. The stirring component 44 is symmetrically installed on the inner wall of the sterilizing kettle body 2, and the internal components of the stirring component 44 are used to stably stir the juice inside the sterilizing kettle body 2.

[0041] During use, the stirring component 44 is used to provide power for the operation of the internal components of the stirring component 44 by utilizing the thrust generated by the temperature-controlled gas flowing in the cavity of the sterilizing kettle body 2, thereby rationally utilizing resources. Afterwards, the lychee juice in the sterilizing kettle body 2 is stirred by using the stirring component 44, so that the temperature of the juice can be more evenly controlled.

[0042] By the attached Figure 6 As shown, the stirring assembly 44 includes a mounting shell 441, a rotating connecting rod 442, a stirring rod 443, a first bevel gear 444 and a driving member 445. The mounting shell 441 is mounted on the inner wall of the sterilization kettle body 2, the rotating connecting rod 442 is rotatably mounted in the mounting shell 441, the stirring rod 443 is fixedly mounted on the top of the rotating connecting rod 442, the first bevel gear 444 is fixedly mounted on the bottom of the rotating connecting rod 442, and a driving member 445 is arranged on the side of the mounting shell 441.

[0043] When the temperature-controlled gas flows along the internal cavity of the sterilizer body 2 during use, a certain thrust is generated to push the driving member 445, allowing the driving member 445 to enter the operating state. At this time, the driving member 445 drives the rotating connecting rod 442 to rotate through the cooperation of the first bevel gear 444, and the stirring rod 443 can stably stir the lychee juice inside the sterilizer body 2, thereby improving the working quality of the equipment itself.

[0044] By the attached Figure 6As shown, the driving member 445 is composed of a conductive connecting rod, a driving wheel and a second bevel gear. The conductive connecting rod passes through the mounting shell 441 and is rotatably connected to the sterilization kettle body 2. The driving wheel is fixedly installed at the end of the conductive connecting rod. The second bevel gear is fixedly installed on the side of the conductive connecting rod end away from the driving wheel. The second bevel gear is meshed and connected with the first bevel gear 444.

[0045] During use, the thrust generated by the temperature-regulating gas flowing in the cavity of the sterilization kettle body 2 is rationally utilized through the cooperation of the conduction connecting rod and the driving wheel, and the second bevel gear is driven to drive the first bevel gear 444 to rotate, thereby providing power for driving the entire component of the stirring assembly 44, rationally utilizing resources, and no additional driving assembly is required inside the sterilization kettle body 2.

[0046] By the attached Figure 7 As shown, it is a structural schematic diagram of the lifting mechanism 5 in this embodiment. The device also includes a lifting mechanism 5 for controlling the height of the closed cover plate 3. The lifting mechanism 5 includes a movable bracket 51 and an electric push rod 52. The movable bracket 51 is symmetrically mounted on the side of the closed cover plate 3, and the electric push rod 52 is fixedly mounted on the mounting bracket 1. The output end of the electric push rod 52 is fixedly connected to the movable bracket 51.

[0047] During use, the electric push rod 52 is started, and the output end of the electric push rod 52 drives the movable bracket 51 to move up and down. At this time, the closed cover 3 is driven by the movable bracket 51 and moves synchronously with the output end of the electric push rod 52, so that the closed cover 3 can be quickly removed from the top opening of the sterilizing kettle body 2, so that the lychee juice to be processed is easily input into the sterilizing kettle body 2. There is no need for the staff to manually install the closed cover 3, which simplifies the overall operation steps.

[0048] By the attached Figure 7 As shown, the lifting mechanism 5 also includes a matching tube 53 and a negative pressure tube 54. The matching tube 53 is installed on the upper surface of the closed cover plate 3, and the matching tube 53 is connected to the interior of the sterilization kettle body 2 through the closed cover plate 3. The negative pressure tube 54 is installed on the upper surface of the closed cover plate 3 on a side away from the matching tube 53, and the negative pressure tube 54 is connected to the interior of the sterilization kettle body 2 through the closed cover plate 3.

[0049] During use, the air pressure inside the sterilizer body 2 is adjusted by cooperating with the matching tube 53, the negative pressure tube 54 and the pump body. According to the type of material in the sterilizer body 2, the air pressure inside the sterilizer body 2 is adjusted accordingly, thereby further enhancing the sterilization effect of the equipment itself.

[0050] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. An ultra-high pressure sterilization device for producing litchi juice, comprising a sterilization kettle body (2) installed in a mounting bracket (1), a cavity for conveying temperature-controlled gas is provided inside the sterilization kettle body (2), and a closed cover plate (3) is installed at the upper opening of the sterilization kettle body (2), characterized in that: A temperature control mechanism (4) for controlling the temperature of litchi juice is installed inside the sterilizing kettle body (2). The temperature control mechanism (4) comprises a gas input pipe (41), a gas exhaust pipe (42) and a temperature control component (43). The gas input pipe (41) is installed on the side of the sterilizing kettle body (2), and the gas exhaust pipe (42) is installed on the other side of the side of the sterilizing kettle body (2) relative to the gas input pipe (41). The gas input pipe (41) is connected to the sterilizing kettle body (2), and the gas exhaust pipe (42) is connected to the sterilizing kettle body (2). The gas input pipe (41), the gas exhaust pipe (42) and the internal cavity of the sterilizing kettle body (2) are combined to form a channel for conveying temperature-control gas. The temperature control component (43) is installed on the inner wall of the sterilizing kettle body (2). The temperature control component (43) uniformly controls the temperature of the juice in the middle of the sterilizing kettle body (2).

2. The ultra-high pressure sterilization device for producing litchi juice according to claim 1, characterized in that: The temperature control component (43) comprises a support rod (431), a mounting seat (432) and a temperature control metal plate (433); the mounting seat (432) is fixedly mounted on the inner wall surface of the sterilizing kettle body (2); the support rod (431) is mounted on the top of the mounting seat (432); a plurality of groups of temperature control metal plates (433) are mounted on the outside of the support rod (431); and a middle temperature control cavity is commonly provided inside the mounting seat (432), the support rod (431) and the temperature control metal plate (433); and the middle temperature control cavity is connected to the internal cavity of the sterilizing kettle body (2).

3. The ultra-high pressure sterilization device for producing litchi juice according to claim 2, characterized in that: The temperature-adjusting metal plates (433) are provided in multiple groups, and the spacing between the multiple groups of temperature-adjusting metal plates (433) located at the top end of the support rod (431) is smaller than the spacing between the multiple groups of temperature-adjusting metal plates (433) located at the bottom end of the support rod (431), and the exterior of the temperature-adjusting metal plates (433) is in a conical shape.

4. The ultra-high pressure sterilization device for producing litchi juice according to claim 3, characterized in that: A reinforcement block is installed at the bottom end of the support rod (431), and equidistant threads in the reinforcement block are installed on the reinforcement screw rod, and the reinforcement screw rod passes through the reinforcement block and is threadedly connected to the mounting seat (432).

5. The ultra-high pressure sterilization device for producing litchi juice according to claim 1, characterized in that: The temperature control mechanism (4) also includes a stirring component (44) driven by the flow of temperature control gas. The stirring component (44) is symmetrically mounted on the inner wall of the sterilizing kettle body (2). The internal components of the stirring component (44) are used to stir the juice inside the sterilizing kettle body (2).

6. The ultra-high pressure sterilization device for producing litchi juice according to claim 5, characterized in that: The stirring assembly (44) includes a mounting shell (441), a rotating connecting rod (442), a stirring rod (443), a first bevel gear (444) and a driving member (445); the mounting shell (441) is mounted on the inner wall of the sterilizing kettle body (2); the rotating connecting rod (442) is rotatably mounted in the mounting shell (441); the stirring rod (443) is fixedly mounted on the top end of the rotating connecting rod (442); the first bevel gear (444) is fixedly mounted on the bottom end of the rotating connecting rod (442); and a driving member (445) is provided on the side of the mounting shell (441).

7. The ultra-high pressure sterilization device for producing litchi juice according to claim 6, characterized in that: The driving member (445) is composed of a conductive connecting rod, a driving wheel and a second bevel gear. The conductive connecting rod passes through the mounting shell (441) and is rotatably connected to the sterilizing kettle body (2). The driving wheel is fixedly mounted on the end of the conductive connecting rod. The second bevel gear is fixedly mounted on the side of the end of the conductive connecting rod away from the driving wheel. The second bevel gear is meshingly connected to the first bevel gear (444).

8. The ultra-high pressure sterilization device for producing litchi juice according to claim 1, characterized in that: The device also includes a lifting mechanism (5) for controlling the height of the closed cover plate (3), the lifting mechanism (5) including a movable bracket (51) and an electric push rod (52), the movable bracket (51) being symmetrically mounted on the side of the closed cover plate (3), the electric push rod (52) being fixedly mounted on the mounting bracket (1), and the output end of the electric push rod (52) being fixedly connected to the movable bracket (51).

9. The ultra-high pressure sterilization device for producing litchi juice according to claim 8, characterized in that: The lifting mechanism (5) further comprises a matching tube (53) and a negative pressure tube (54); the matching tube (53) is mounted on the upper surface of the closed cover (3); the matching tube (53) is connected to the interior of the sterilizing kettle body (2) through the closed cover (3); the negative pressure tube (54) is mounted on a side of the upper surface of the closed cover (3) away from the matching tube (53); the negative pressure tube (54) is connected to the interior of the sterilizing kettle body (2) through the closed cover (3).

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