Pretreatment device and refrigeration equipment

Abstract

The invention provides a pretreatment device and refrigeration equipment. The pretreatment device comprises a pretreatment chamber; the vacuum packaging machine is arranged in the pretreatment chamber, and the vacuum packaging machine comprises an air exhaust nozzle; the storage rack is arranged in the pretreatment chamber, and the storage rack is located on the side where an air exhaust nozzle of the vacuum packaging machine is located; the sterilization assembly is arranged in the pretreatment chamber, and the sterilization assembly acts on the area where the storage rack is located; according to the vacuum packaging machine, the packaging bag can be automatically vacuumized, the sterilization assembly sterilizes food in the packaging bag while the vacuum packaging machine vacuumizes the packaging bag, and therefore the quality of the food subjected to vacuum packaging can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of pretreatment, and in particular to a pretreatment device and refrigeration equipment. Background Art

[0002] As people's living standards continue to improve, more and more methods are being used to preserve food. Among them, vacuum packaging, the most commonly used commercial method for food preservation, has gradually become popular in ordinary households due to its convenience, low price, good preservation effect, and long shelf life. It has also gained widespread recognition. As a result, a variety of small vacuum packaging machines have appeared on the market. Vacuum packaging machines use a vacuum pump to remove air from the packaging bag, and then use a heat-sealing component to heat-seal the bag opening, creating a vacuum seal within the bag, thereby maintaining the freshness and hygiene of the food.

[0003] Currently, after consumers buy large pieces of fresh meat from supermarkets, they basically simply cut them up, vacuum-pack them manually, and then put them in the refrigerator for refrigeration or freezing. However, fresh meat is prone to breeding bacteria, which affects the storage quality of fresh meat. Summary of the Invention

[0004] The object of the present invention is to provide a pretreatment device and a refrigeration equipment.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a pretreatment device, comprising:

[0006] Pretreatment room;

[0007] A vacuum packaging machine, the vacuum packaging machine being arranged in the pretreatment chamber and comprising an exhaust nozzle;

[0008] A storage rack is provided in the pretreatment chamber and is located on the side where the vacuum nozzle of the vacuum packaging machine is located;

[0009] A sterilization component is arranged in the pretreatment chamber, and the sterilization component acts on the area where the storage rack is located.

[0010] As a further improved technical solution of the present invention, the storage rack has a hollow portion penetrating along the up-down direction.

[0011] As a further improved technical solution of the present invention, the pretreatment chamber includes an upper wall located above the shelf, a lower wall located below the shelf, and a side wall connecting the upper wall and the lower wall; the sterilization component includes a plurality of sterilization lamps respectively arranged on the upper wall, lower wall, and side walls.

[0012] As a further improved technical solution of the present invention, the sterilization assembly includes a rotating rod connected to the pretreatment chamber and rotating around the shelf, a sterilization lamp fixed to the rotating rod, and a driving mechanism for driving the rotating rod to rotate.

[0013] As a further improved technical solution of the present invention, the pretreatment chamber includes a first wall located on the side of the rack away from the exhaust nozzle, the driving mechanism is provided on the first wall, and the rotating rod is rotatably connected to the first wall.

[0014] As a further improved technical solution of the present invention, the germicidal lamp is an ultraviolet lamp or a plasma lamp.

[0015] As a further improved technical solution of the present invention, the pretreatment chamber includes an upper wall located above the storage rack, the sterilization component includes a water tank for holding acidic electrolyzed water, and a spray head connected to the water tank, the spray head is arranged on the upper wall and the water outlet of the spray head faces the storage rack.

[0016] As a further improved technical solution of the present invention, the storage rack includes a frame and a plurality of connecting rods connecting two opposite sides of the frame, and the hollow portion is formed between two adjacent connecting rods or between a connecting rod and the frame.

[0017] As a further improved technical solution of the present invention, the vacuum packaging machine further includes:

[0018] A base body, wherein a vacuum cavity is recessed on the upper surface of the base body, the vacuum nozzle is mounted on the base body, and the air outlet of the vacuum nozzle is located in the vacuum cavity, and the air inlet of the vacuum nozzle extends outside the vacuum cavity, and after the packaging bag is sleeved on the vacuum nozzle, the bag opening of the packaging bag is located in the vacuum cavity;

[0019] a cover body, the cover body being rotatably connected to the upper surface of the base body, a sealing ring being provided between the base body and the cover body and being located on the outer periphery of the vacuum chamber, and the cover body opening or sealing the vacuum chamber;

[0020] a heat sealing assembly disposed between the base and the cover, the heat sealing assembly being disposed close to the air inlet;

[0021] A locking assembly is provided between the cover body and the base body, and a driving member drives the locking assembly to switch from a locked state to an unlocked state.

[0022] To achieve the above object of the invention, the present invention further provides a refrigeration device, comprising the above pre-treatment device, wherein the pre-treatment chamber is a refrigeration chamber.

[0023] The beneficial effects of the present invention are as follows: the pretreatment device of the present invention provides a storage rack on the side of the vacuum nozzle of the vacuum packaging machine, and also provides a sterilization component acting on the area where the storage rack is located. After the bag opening of the packaging bag is placed on the vacuum nozzle so that the bag opening of the packaging bag is located in the vacuum packaging machine, the packaging bag is supported on the storage rack, and the user does not need to hold the packaging bag by hand, so that automatic vacuuming of the packaging bag can be achieved. Moreover, while the vacuum packaging machine is vacuuming the packaging bag, the sterilization component sterilizes the food in the packaging bag, thereby ensuring the quality of the vacuum-packed food. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shown is a schematic structural diagram of a refrigeration device with a pretreatment device in the present invention;

[0025] Figure 2 Shown Figure 1 Schematic diagram of the structure of the pretreatment chamber;

[0026] Figure 3 Shown Figure 1 The coordinated structure diagram of the door, vacuum packaging machine and storage rack;

[0027] Figure 4 Shown is a perspective view of a pre-treatment chamber having a sterilization assembly in a first embodiment;

[0028] Figure 5 Shown is a perspective view of a pretreatment chamber having a sterilization assembly in a second embodiment;

[0029] Figure 6 Shown is a perspective view of a pre-treatment chamber having a sterilization assembly in a third embodiment;

[0030] Figure 7 Shown Figure 3 Schematic diagram of the structure of the door body;

[0031] Figure 8 Shown Figure 7 Exploded view of the door body;

[0032] Figure 9 Shown Figure 7 Exploded view of the door lining and reinforcement iron;

[0033] Figure 10 Shown Figure 3 The structural diagram of the vacuum packaging machine;

[0034] Figure 11 Shown Figure 10 Partial exploded view of

[0035] Figure 12Shown Figure 11 A schematic structural diagram of another angle of the fixing frame;

[0036] Figure 13 Shown Figure 10 Exploded view of the seat body;

[0037] Figure 14 Shown Figure 13 A schematic structural diagram of the upper shell from another angle;

[0038] Figure 15 Shown Figure 10 A schematic structural diagram of the vacuum packaging machine from another angle;

[0039] Figure 16 Shown Figure 15 Cross-sectional view along the AA axis. DETAILED DESCRIPTION

[0040] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. Figures 1 to 16 The preferred embodiments of the present invention are shown in the figures. However, it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by those skilled in the art based on these embodiments fall within the scope of protection of the present invention.

[0041] Terms such as "upper", "lower", "bottom", etc. used herein to indicate spatial relative positions are used for ease of explanation to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. Terms of spatial relative position may be intended to include different orientations of the device in use or operation in addition to the orientation shown in the drawings. For example, if the device in the drawings is turned over, the units described as being "below" or "beneath" other units or features will be "above" the other units or features. Thus, the exemplary term "upper" can encompass both upper and lower orientations. The device may be oriented in other ways (rotated 90° or in other orientations), and the spatially relative descriptors used herein interpreted accordingly.

[0042] Also, it should be understood that although the terms first, second, etc. may be used in this document to describe various elements or structures, these described objects should not be limited by these terms. These terms are only used to distinguish these described objects from each other.

[0043] In the drawings of the present invention, for the sake of convenience, some sizes of structures or parts may be exaggerated relative to other structures or parts, and thus, only the basic structure of the subject matter of the present invention is illustrated.

[0044] Please refer to Figures 1 to 16As shown, the present invention provides a pretreatment device, including a pretreatment chamber 1, a vacuum packaging machine 2 arranged in the pretreatment chamber 1, a storage rack 3 arranged in the pretreatment chamber 1, a sterilization component 4 arranged in the pretreatment chamber 1, and a control unit for controlling the pretreatment device, wherein the vacuum packaging machine 2 and the sterilization component 4 are both communicatively connected to the control unit.

[0045] Combine Figure 3 As shown, the vacuum packaging machine 2 has an air extraction nozzle 21, the storage rack 3 is located on the side of the vacuum packaging machine 2 where the air extraction nozzle 21 is located, and the sterilization component 4 acts on the area where the storage rack 3 is located. After the opening of the packaging bag 10 is placed on the air extraction nozzle 21 so that the opening of the packaging bag 10 is located in the vacuum packaging machine 2, the packaging bag 10 is supported on the storage rack 3, eliminating the need for the user to manually hold the packaging bag 10 during vacuum packaging, thereby achieving automatic vacuum packaging by the vacuum packaging machine 2. While the vacuum packaging machine 2 is evacuating the packaging bag 10, the sterilization component 4 sterilizes the food in the packaging bag 10, thereby ensuring the quality of the vacuum-packed food.

[0046] Furthermore, the storage rack 3 has a hollow portion extending vertically therethrough. In one embodiment, the storage rack 3 includes a frame 31 and a plurality of connecting rods 32 connecting opposite sides of the frame 31. The hollow portion is formed between two adjacent connecting rods 32 or between a connecting rod 32 and the frame 31, thereby simplifying the preparation of the storage rack 3.

[0047] Specifically, the storage rack 3 is rectangular, and the frame 31 includes four frame rods connected end to end to form a rectangle. The four frame rods include two first frame rods spaced apart in a direction away from the air extraction nozzle 21, and a second frame rod connecting the ends of the two first frame rods. The connecting rods 32 include at least one first connecting rod connecting the two first frame rods, and a plurality of second connecting rods spaced apart to connect the two second frame rods. It is understood that the gap size between the first and second connecting rods can be adjusted according to specific needs, as long as the packaging bags 10 placed on the storage rack 3 do not fall through the gap.

[0048] Combine Figure 4 As shown, in the first embodiment of the sterilization component 4, the sterilization component 4 is configured to act on the area where the shelf 3 is located from the peripheral side of the shelf 3, thereby being able to perform a full range of sterilization treatment on the packaging bag 10 and the food in the packaging bag 10, further ensuring the quality of the vacuum-packed food.

[0049] Specifically, in this embodiment, the pretreatment chamber 1 includes an upper wall 11 located above the storage rack 3, a lower wall 12 located below the storage rack 3, and a side wall 14 connecting the upper wall 11 and the lower wall 12. The sterilization assembly 4 includes multiple germicidal lamps 41 located on the upper wall 11, the lower wall 12, and the side wall 14. The multiple germicidal lamps 41 are communicatively connected to the control unit. By simultaneously activating the multiple germicidal lamps 41 located on the upper wall 11, the lower wall 12, and the side wall 14, the packaging bag 10 and the food inside the packaging bag 10 can be sterilized in all directions, improving the sterilization effect and the quality of the vacuum-packed food.

[0050] In one embodiment, the germicidal lamp 41 is an ultraviolet lamp or a plasma lamp, but is not limited thereto.

[0051] Combine Figure 5 The figure shows a second embodiment of the sterilization component 4a of the present invention. The difference between the sterilization component 4a in the second embodiment and the sterilization component 4 in the first embodiment is that the sterilization component 4a includes a rotating rod 42 connected to the pretreatment chamber 1 and rotating around the shelf 3, a sterilization lamp 41 fixed to the rotating rod 42, and a driving mechanism (not shown) that drives the rotating rod 42 to rotate. The rotating rod 42 drives the sterilization lamp 41 to rotate around the shelf 3, thereby achieving comprehensive sterilization of the packaging bag 10 and the food inside the packaging bag 10, improving the sterilization effect and the quality of the vacuum-packed food. Compared with the sterilization component 4 in the first embodiment of the present invention, the sterilization component 4a in the second embodiment of the present invention reduces the number of sterilization lamps 41, thereby reducing costs.

[0052] Specifically, the pretreatment chamber 1 includes a first wall 13 located on the side of the rack 3 away from the vacuum nozzle 21. The drive mechanism is disposed on the first wall 13, and the rotating rod 42 is rotatably connected to the drive mechanism. Thus, when the rotating rod 42 drives the germicidal lamp 41 to rotate, the sterilization assembly 4a does not interfere with the vacuum packaging machine 2 or the rack 3.

[0053] The second embodiment of the sterilization assembly 4a of the present invention is identical to the first embodiment except for the above-mentioned differences, and will not be described in detail here.

[0054] Combine Figure 6The figure shows a third embodiment of the sterilization assembly 4b of the present invention. The sterilization assembly 4b in the third embodiment differs from the sterilization assembly 4 in the first embodiment in that the pretreatment chamber 1 includes an upper wall 11 located above the storage rack 3. The sterilization assembly 4b includes a water tank (not shown) for holding acidic electrolyzed water and a spray head 43 connected to the water tank. The spray head 43 is disposed on the upper wall 11, with the water outlet of the spray head 43 facing the storage rack 3. Thus, the spray head 43 sprays acidic electrolyzed water toward the packaging bags 10 in the storage rack 3, thereby killing bacteria on the surface of the packaging bags 10. At the same time, the acidic electrolyzed water sprayed onto the storage rack 3 can be discharged from the hollow portion into the pretreatment chamber 1, making it easier for users to clean.

[0055] In one embodiment, the pH value of the acidic electrolyzed water is 5.0-6.5.

[0056] The sterilization assembly 4 b in the third embodiment of the present invention is identical to the sterilization assembly 4 in the first embodiment except for the above-mentioned differences, and details thereof will not be repeated here.

[0057] Further, combined with Figures 1 to 3 As shown, the pretreatment chamber 1 has an opening, and the pretreatment device further includes a door body 5 for opening or closing the opening, and a slide rail assembly 6 for slidingly connecting the door body 5 to the pretreatment chamber 1 along the depth direction of the pretreatment chamber 1. The slide rail assembly 6 includes a slide rail bracket 61 connected to the side of the door body 5 facing the pretreatment chamber 1 and extending along the depth direction of the pretreatment chamber 1, and a slide rail 62 fixed in the pretreatment chamber 1. The slide rail bracket 61 is assembled on the slide rail 62 to slide the door body 5 to the slide rail assembly 6 of the pretreatment chamber 1 along the depth direction of the pretreatment chamber 1.

[0058] The side where the door body 5 is located is defined as the front, and the depth direction of the pretreatment chamber 1 refers to the front-to-back direction. The door body 5 is slidably connected to the pretreatment chamber 1 along the front-to-back direction.

[0059] In one embodiment, the vacuum packaging machine 2 is connected to the slide rail bracket 61, so that the door 5 and the vacuum packaging machine 2 can move forward and backward synchronously, facilitating the removal and placement of packaging bags 10. Of course, this is not limiting. In other embodiments, the vacuum packaging machine 2 can also be directly connected to the door 5 so that the door 5 and the vacuum packaging machine 2 can move forward and backward synchronously; or, the vacuum packaging machine 2 can be configured not to move forward and backward synchronously with the door 5. In this case, the vacuum packaging machine 2 can be directly fixed in the pretreatment chamber 1.

[0060] Further, combined with Figures 7 to 9As shown, the slide rail bracket 61 includes a bracket body 611, a first overlapping edge 612 bent outward from the upper edge of the bracket body 611, and a second overlapping edge 613 bent inward from the lower edge of the bracket body 611, resulting in a Z-shaped cross-section of the slide rail bracket 61, which can improve the strength of the slide rail bracket 61 and the support strength of the slide rail bracket 61 for the vacuum packaging machine 2. The vacuum packaging machine 2 includes a base 22, the suction nozzle 21 is provided on the upper surface of the base 22, and a lap portion 221 is protruding from the side of the base 22 corresponding to the bracket body 611. The lower surface of the base 22 overlaps the second overlapping edge 613, and the lap portion 221 overlaps the first overlapping edge 612.

[0061] Specifically, the first overlapped edge 612 is fastened to the base 22 by fasteners, such as fastening screws, to achieve the connection between the vacuum packaging machine 2 and the slide rail bracket 61. Of course, this is not limited to this.

[0062] In a specific embodiment, the suction nozzle 21 extends backward, the shelf 3 is located at the rear side of the vacuum packaging machine 2, and the shelf 3 and the door 5 move forward and backward synchronously to facilitate the placement and removal of the packaging bags 10. Of course, this is not limited to this.

[0063] Specifically, the rack 3 is fixedly connected to the base 22 so that the rack 3 moves forward and backward synchronously with the vacuum packaging machine 2. Of course, this is not limiting, and in other embodiments, the rack 3 can also be configured to be connected to the slide rail bracket 61.

[0064] Furthermore, the door body 5 includes a door panel 51 and a door lining 52 fixed to the rear side of the door panel 51. The door lining 52 has a slide rail connecting portion for connecting to the slide rail bracket 61, and the slide rail connecting portion has a through groove 521 extending along the front-to-back direction. The door body 5 also includes a reinforcing iron 53, and the reinforcing iron 53 includes a fixing portion 531 fixed to the side of the door lining 52 facing the door panel 51, and a connecting plate 532 connected to the fixing portion 531 and extending through the through groove 521, and the connecting plate 532 is used to connect to the slide rail bracket 61. That is, the connecting plate 532 for connecting to the slide rail bracket 61 is exposed to the outside of the door lining 52, which facilitates the connection of the slide rail bracket 61. At the same time, it can be accurately positioned during connection, thereby ensuring the verticality between the slide rail bracket 61 and the door lining, and preventing the door body 5 from being skewed.

[0065] Furthermore, the edge of the through groove 521 has a reinforcing wall 522 extending in a direction away from the door panel 51 , which can increase the depth of the through groove 521 , thereby enhancing the stability of the connecting plate 532 .

[0066] Furthermore, the fixing portion 531 includes a first plate 5311 that abuts against the door lining 52, a second plate 5312 located on a side of the first plate 5311 facing the door panel 51 and spaced apart from the first plate 5311, and a third plate 5313 connecting the first plate 5311 and the second plate 5312. This can enhance the bending strength of the fixing portion 531, thereby increasing the stability of the connection of the slide rail bracket 61.

[0067] In one embodiment, the fixing portion 531 is formed by bending from the end of the connecting plate 532. Specifically, the fixing portion 531 is first bent from the end of the connecting plate 532 along the length of the door body 5, then bent toward the door panel 51, then bent in the opposite direction along the length of the door body 5, then bent toward the door lining 52, and finally bent along the length of the door body 5 toward the connecting plate 532 to form the fixing portion 531. The fixing portion 531 and the connecting plate 532 are integrally bent, which can enhance the strength of the reinforcing iron 53, thereby enhancing the stability of the connection of the slide rail bracket 61.

[0068] Furthermore, one of the slide rail bracket 61 and the connecting plate 532 is provided with a hook 614, and the other is provided with a bayonet 5321 that cooperates with the hook 614. When the slide rail bracket 61 is fixed, it can be pre-positioned by the cooperation between the hook 614 and the bayonet 5321.

[0069] Furthermore, the slide rail bracket 61 is provided with a first screw hole 615, and the connecting plate 532 is provided with a second screw hole 5322 that cooperates with the first screw hole 615. The pretreatment device also includes a fastener that is configured to simultaneously pass through the first screw hole 615 and the second screw hole 5322. After the slide rail bracket 61 is pre-positioned by the engagement between the hook 614 and the bayonet 5321, the slide rail bracket 61 can be secured by simultaneously threading the fastener into the first screw hole 615 and the second screw hole 5322, thereby facilitating operation and preventing misalignment. During connection, the fastener can be precisely positioned, thereby preventing the door body 5 installed on the pretreatment chamber 1 from tilting.

[0070] Specifically, combined Figures 10 to 16As shown, a vacuum chamber 222 is recessed on the upper surface of the base 22. The air outlet of the suction nozzle 21 is located within the vacuum chamber 222, and the air inlet of the suction nozzle 21 extends outside the vacuum chamber 222. The vacuum packaging machine 2 also includes a vacuum pump 23 disposed within the base 22 and in communication with the vacuum chamber 222, a cover 24 rotatably connected to the upper surface of the base 22, and a sealing ring 25 disposed between the base 22 and the cover 24 and located on the outer periphery of the vacuum chamber 222. The air inlet extends at least to the side of the sealing ring 25 away from the vacuum chamber 222. When the cover 24 is closed, the cover 24 seals the vacuum chamber 222 via the sealing ring 25, thereby enabling the vacuum pump 23 to evacuate the vacuum chamber 222, thereby evacuating the packaging bag 10 through the suction nozzle 21. When the cover 24 is in the open state, the cover 24 opens the vacuum chamber 222 , making it convenient for a user to place a packaging bag 10 to be vacuum-packed or to take out a packaging bag 10 that has been vacuum-sealed.

[0071] Furthermore, the base body 22 includes a lower shell 223 and an upper shell 224 that together with the lower shell 223 forms a receiving cavity. The vacuum cavity 222 is formed by being recessed downward from the upper surface of the upper shell 224. The vacuum pump 23 is located in the receiving cavity, which is conducive to the assembly of various components in the vacuum packaging machine 2.

[0072] Specifically, the base 22 has a connecting post 225 integrally formed with the vacuum chamber 222. An air inlet 2251 is provided through the connecting post 225. The connecting post 225 includes a first section 2252 located within the vacuum chamber 222 and extending upward, and a second section 2253 located outside the vacuum chamber 222 and extending toward the receiving chamber. The exhaust pipe 231 of the vacuum pump 23 is sleeved on the second section 2253. In other words, the vacuum pump 23 is used to evacuate the vacuum chamber 222. After the packaging bag 10 is sleeved on the exhaust nozzle 21, the bag opening of the packaging bag 10 is located within the vacuum chamber 222. During vacuuming, the packaging bag 10 can be vacuumed through the vacuum nozzle 21 and the vacuum chamber 222 at the same time. After the cover 24 is in the closed state and the packaging bag 10 is closed by the sealing ring 25, for the textured bag, even if the inner wall has texture support and is not completely sealed, the packaging bag 10 can be vacuumed through the vacuum nozzle 21 and the vacuum chamber 222. For the smooth bag, the packaging bag 10 can be vacuumed through the vacuum nozzle 21. Both can complete vacuuming, and the vacuuming success rate is high, the versatility is stronger, and the vacuuming cost is reduced.

[0073] Furthermore, the upper surface of the base body 22 is recessed with a first annular groove 226 located on the outer periphery of the vacuum chamber 222, and the cover body 24 is recessed with a second annular groove 241 corresponding to the first annular groove 226. The sealing ring 25 includes a first sealing ring 251 disposed within the first annular groove 226 and a second sealing ring 252 disposed within the second annular groove 241. When the cover body 24 is in the closed state, the first sealing ring 251 and the second sealing ring 252 squeeze each other to seal the vacuum chamber 222. Simultaneously, the first sealing ring 251 and the second sealing ring 252 squeeze each other from opposite sides of the suction nozzle 21 to seal, thereby closing the packaging bag 10 and improving the sealing effect.

[0074] Furthermore, at least one of the first sealing ring 251 and the second sealing ring 252 is a silicone sealing ring with a U-shaped cross-section, which can produce a large deformation. It is known that the air suction nozzle 21 itself has a certain thickness. When the cover body 24 is in the closed state, the first sealing ring 251 and the second sealing ring 252 at the air suction nozzle 21 need to produce a large deformation to complete the sealing. By making at least one of the first sealing ring 251 and the second sealing ring 252 a silicone sealing ring with a U-shaped cross-section, a large deformation can be produced, and at the same time, the squeezing force on the air suction nozzle 21 can be reduced to prevent the air suction nozzle 21 from being flattened, affecting the suction effect of the air suction nozzle 21, and at the same time, improving the sealing effect.

[0075] In a specific embodiment, the first sealing ring 251 is a silicone sealing ring with a U-shaped cross-section, and the second sealing ring 252 is a foam sealing ring, which can achieve a better sealing effect while reducing costs.

[0076] Furthermore, the suction nozzle 21 is height-adjustable, meaning it is movably connected to the upper surface of the base 22 along its height. Specifically, when the lid 24 is open, the suction nozzle 21 is positioned at a higher position, meaning it is at a greater distance from the upper surface of the base 22 / first sealing ring 251, making it easier for the user to place the packaging bag 10 over the suction nozzle 21. When the lid 24 is closed, the suction nozzle 21 is positioned at a lower position, which helps ensure the sealing of the vacuum chamber 222.

[0077] In this embodiment, the suction nozzle 21 is connected to the vacuum chamber 222 , which can simplify the structure of the vacuum packaging machine 2 .

[0078] Furthermore, the suction nozzle 21 is movably connected to the vacuum chamber 222 along the height direction, and an elastic member 26 is provided between the bottom of the suction nozzle 21 and the vacuum chamber 222. The suction nozzle 21 is floatingly mounted in the vacuum chamber 222 along the height direction by the elastic member 26, so that the height of the suction nozzle 21 can be adjusted. When the cover 24 is closed, the suction nozzle 21 moves downward under the push of the cover 24 to lower the height of the suction nozzle 21, which is beneficial for sealing. At this time, the elastic member 26 is in a compressed state. When the cover 24 is opened, the force exerted by the cover 24 on the suction nozzle 21 disappears. Under the action of the elastic restoring force of the elastic member 26, the suction nozzle 21 moves upward, raising the height of the suction nozzle 21, so that the user can remove the vacuum-sealed packaging bag 10 and at the same time, it is convenient for the user to put the packaging bag 10 on the suction nozzle 21.

[0079] Furthermore, the vacuum packaging machine 2 further includes a fixing bracket 211 that movably connects the suction nozzle 21 to the vacuum chamber 222 along the height direction. The elastic member 26 is disposed between the bottom of the fixing bracket 211 and the bottom wall of the vacuum chamber 222 to float the suction nozzle 21 in the vacuum chamber 222 along the height direction.

[0080] Specifically, the bottom of the fixing frame 211 has a limiting groove 2111 adapted to the outer contour of the elastic member 26, and the upper end of the elastic member 26 is located in the limiting groove 2111. This enhances the stability of the connection between the elastic member 26 and the fixing frame 211 and the overall stability of the vacuum packaging machine 2.

[0081] In a specific embodiment, the elastic member 26 is a spring extending in the height direction. Of course, this is not limited to this.

[0082] Furthermore, a fixing post 2221 is provided on the bottom wall of the vacuum chamber 222, and the spring is sleeved on the fixing post 2221. The spring can be fixed to the vacuum chamber 222 without damaging the sealing performance of the vacuum chamber 222.

[0083] In a specific embodiment, the vacuum packaging machine 2 has only one vacuum nozzle 21, that is, it can only vacuum package one packaging bag 10 at a time. Of course, this is not limited to this.

[0084] Furthermore, the vacuum packaging machine 2 further includes a heat sealing assembly 27 disposed between the cover 24 and the base 22. The heat sealing assembly 27 is disposed near the air inlet, that is, between the sealing ring 25 and the storage rack 3. After the packaging bag 10 is evacuated by the vacuum pump 23 and the suction nozzle 21, the heat sealing assembly 27 heat-seals the bag opening of the packaging bag 10, thereby completing the vacuum packaging of the packaging bag 10.

[0085] The heat sealing assembly 27 includes a first heat sealing member 271 disposed on the base 22 and a second heat sealing member 272 disposed on the cover 24 and corresponding to the first heat sealing member 271. At least one of the first heat sealing member 271 and the second heat sealing member 272 is a heating strip. During heat sealing, the first heat sealing member 271 abuts against the second heat sealing member 272, and the heating strip is energized to heat the opening of the packaging bag 10, thereby achieving heat sealing.

[0086] In one embodiment, the first heat-sealing member 271 is a heating strip, and the second heat-sealing member 272 is a silicone gasket.

[0087] Furthermore, the first heat-sealing member 271 is movably connected to the base 22. The vacuum packaging machine 2 also includes a cylinder lifting assembly 28 disposed within the base 22 to drive the first heat-sealing member 271 upward and downward. When vacuuming the packaging bag 10, the cylinder lifting assembly 28 drives the first heat-sealing member 271 away from the second heat-sealing member 272, ensuring an unobstructed air passage for the packaging bag 10, particularly for smooth-surfaced bags, and increasing the success rate of vacuuming. After vacuuming is complete, the cylinder lifting assembly 28 drives the first heat-sealing member 271 toward the second heat-sealing member 272 until it abuts against the second heat-sealing member 272. Simultaneously, the heating strip is energized to heat the packaging bag 10, achieving heat sealing at the bag opening.

[0088] Specifically, a groove 2241 communicating with the receiving chamber is provided at a position on the upper housing 224 corresponding to the first heat-sealing member 271. The cylinder lifting assembly 28 includes a cylinder 281 disposed within the receiving chamber. The cylinder 281 has a piston rod 282 that protrudes into the groove 2241 and is connected to the first heat-sealing member 271. The first heat-sealing assembly 27 is driven to move up and down by the extension and retraction of the piston rod 282.

[0089] In a specific embodiment, the piston in the piston rod 282 divides the cavity in the cylinder 281 into relatively independent rod cavity 283 and rodless cavity 284, and the rod cavity 283 is a sealed cavity; specifically, the rod cavity 283 is located on the upper side of the piston, and the rodless cavity 284 is located on the lower side of the piston.

[0090] The cylinder lifting assembly 28 also includes a connecting line 285 connecting the vacuum chamber 222 and the rod chamber 283, and a solenoid valve 286 disposed on the connecting line 285 to control the opening and closing of the connecting line 285. The solenoid valve 286 is communicatively connected to the control unit. After the packaging bag 10 is evacuated, the vacuum level in the vacuum chamber 222 is low. At this time, the solenoid valve 286 is opened to connect the connecting line 285, and the air in the rod chamber 283 flows along the connecting line 285 into the vacuum chamber 222, reducing the pressure in the rod chamber 283. Under the action of the pressure differential on opposite sides of the piston, the piston rod 282 rises, driving the first heat-sealing element 271 upward to abut against the second heat-sealing element 272, thereby heat-sealing the opening of the packaging bag 10. In other words, in the present invention, by introducing air in the rod chamber 283 into the vacuum chamber 222, the pressure in the rod chamber 283 is reduced, thereby causing the piston rod 282 to move upward. This simplifies the structure and saves energy. Of course, this is not limited to the above. In other embodiments, a driving mechanism for driving the piston rod 282 to move may be provided to directly drive the reciprocating movement of the piston rod 282 .

[0091] It can be seen that in the specific control process of the vacuum packaging machine 2, the vacuum pump 23 can be turned off while the solenoid valve 286 is opened, or the vacuum pump 23 can be turned off after the solenoid valve 286 is opened for a first preset time. On the one hand, it can prevent the gas flowing into the vacuum chamber 222 in the rod chamber 283 from flowing back into the packaging bag 10, affecting the vacuum effect in the packaging bag 10. On the other hand, it can also ensure the upward movement of the piston rod 282 to avoid sealing failure.

[0092] In a specific implementation, the first preset time is 5 seconds, but of course, it is not limited thereto.

[0093] Furthermore, the cylinder lifting assembly 28 also includes a pressure relief line 287 communicating with the connecting line 285 and a pressure relief valve 288 disposed on the pressure relief line 287. The pressure relief valve 288 is communicatively connected to the control unit. After the heat sealing assembly 27 completes heat sealing the opening of the packaging bag 10, the pressure relief valve 288 is opened to release pressure, facilitating the downward return of the piston rod 282, driving the first heat sealing element 271 away from the second heat sealing element 272, and facilitating the opening of the cover 24.

[0094] Furthermore, the rodless cavity 284 is a non-sealed cavity, that is, the rodless cavity 284 is connected to the outside world, and the cylinder lifting assembly 28 also includes a reset member 289 arranged in the cylinder 281, and the reset member is used to drive the piston rod 282 to reset, so that the first heat sealing member 271 and the second heat sealing member 272 are separated.

[0095] Furthermore, in an embodiment where the first heat sealing member 271 is a heating strip, the piston rod 282 is electrically connected to the control unit to conduct electricity to the first heat sealing member 271 , thereby heating the first heat sealing member 271 and achieving heat sealing of the bag opening of the packaging bag 10 .

[0096] Specifically, when the piston rod 282 rises to bring the first heat sealing member 271 closer to the second heat sealing member 272 , the piston rod 282 conducts electricity to the first heat sealing member 271 to heat the first heat sealing member 271 . This has a simple structure and simplifies the control logic of the vacuum packaging machine 2 .

[0097] Furthermore, a locking assembly 29 and a driving member (not shown) for driving the locking assembly 29 to switch from a locked state to an unlocked state are provided between the base 22 and the cover 24. The driving member is communicatively connected to the control unit. That is, the locking assembly is an electric locking assembly. When the cover 24 is in a closed state, the locking assembly 29 is in a locked state to maintain the closed state of the cover 24, thereby facilitating the vacuuming and heat sealing of the packaging bag 10. After the heat sealing is completed, the control unit can automatically control the driving member so that the locking assembly 29 automatically switches from a locked state to an unlocked state, and the cover 24 can be automatically opened without the user having to open the door 5 before opening the cover 24. This prevents the sealing ring 25 from being squeezed for too long due to the user not opening the door for a long time, causing the sealing ring 25 to lose its elasticity.

[0098] In one embodiment, the locking assembly 29 comprises a matching buckle and a slot, and the driver is used to drive the buckle and slot away from each other. The structure of the driver is not specifically limited herein; any driver capable of moving the buckle and slot away from each other falls within the scope of protection of the present invention. Of course, this is not a limitation.

[0099] Further, combined with Figure 1 As shown, the present invention further provides a refrigeration device 100, which includes the above-mentioned pretreatment device, and the pretreatment chamber 1 serves as a refrigeration chamber. That is, after the vacuum packaging machine 2 in the pretreatment chamber 1 vacuum-packages the food, and the sterilization component 4 sterilizes the food, the refrigeration system in the refrigeration device 100 cools the pretreatment chamber 1 to a preset temperature, such as 0°C to 4°C, to preserve and store the vacuum-packaged food. Thus, the pretreatment chamber 1 can not only vacuum-package and sterilize the food, but also preserve and store the vacuum-packaged food, further improving the storage quality of the food.

[0100] Specifically, the refrigeration device 100 includes a box body 20 , and the pretreatment chamber 1 is a refrigeration compartment disposed in the box body 20 .

[0101] It is understood that when the refrigeration equipment 100 includes the pre-treatment device, the control unit in the pre-treatment device refers to the control unit of the refrigeration equipment 100. Meanwhile, other structures of the refrigeration equipment 100, except for the pre-treatment device, such as the refrigeration system and the air duct components that transport the cooling energy in the refrigeration system to the pre-treatment chamber 1 and other refrigeration compartments, can all adopt existing technologies and will not be described in detail here.

[0102] To sum up, the pretreatment device in the present invention is to set a rack 3 on the side of the vacuum nozzle 21 of the vacuum packaging machine 2, and to further set a sterilization component 4 acting on the area where the rack 3 is located. After the bag opening of the packaging bag 10 is placed on the vacuum nozzle 21 so that the bag opening of the packaging bag 10 is located in the vacuum packaging machine 2, the packaging bag 10 is supported on the rack 3, and the user does not need to hold the packaging bag 10 by hand, so that the packaging bag 10 can be automatically vacuumed. Moreover, while the vacuum packaging machine 2 is vacuuming the packaging bag 10, the sterilization component 4 sterilizes the food in the packaging bag 10, thereby ensuring the quality of the vacuum-packed food.

[0103] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0104] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pretreatment device, characterized in that: include: Pretreatment room; A vacuum packaging machine, the vacuum packaging machine being arranged in the pretreatment chamber and comprising an exhaust nozzle; A storage rack is provided in the pretreatment chamber and is located on the side where the vacuum nozzle of the vacuum packaging machine is located; A sterilization component is arranged in the pretreatment chamber, and the sterilization component acts on the area where the storage rack is located.

2. The pretreatment device according to claim 1, wherein: The storage rack has a hollow portion that penetrates along the up-down direction.

3. The pretreatment device according to claim 2, characterized in that: The pretreatment chamber includes an upper wall located above the rack, a lower wall located below the rack, and a side wall connecting the upper wall and the lower wall; the sterilization component includes a plurality of sterilization lamps respectively arranged on the upper wall, lower wall, and side walls.

4. The pretreatment device according to claim 2, wherein: The sterilization assembly includes a rotating rod connected to the pretreatment chamber and rotating around the shelf, a sterilization lamp fixed on the rotating rod, and a driving mechanism for driving the rotating rod to rotate.

5. The pretreatment device according to claim 4, characterized in that: The pretreatment chamber includes a first wall located on a side of the rack away from the air extraction nozzle, the driving mechanism is provided on the first wall, and the rotating rod is rotatably connected to the first wall.

6. The pretreatment device according to claim 3 or 4, characterized in that: The germicidal lamp is an ultraviolet lamp or a plasma lamp.

7. The pretreatment device according to claim 2, wherein: The pretreatment chamber includes an upper wall located above the rack, the sterilization component includes a water tank for containing acidic electrolyzed water and a spray head connected to the water tank, the spray head is arranged on the upper wall and the water outlet of the spray head faces the rack.

8. The pretreatment device according to claim 2, wherein: The storage rack includes a frame and a plurality of connecting rods connecting two opposite sides of the frame, and the hollow portion is formed between two adjacent connecting rods or between a connecting rod and the frame.

9. The pretreatment device according to claim 1, wherein: The vacuum packaging machine also includes: A base body, wherein a vacuum cavity is recessed on the upper surface of the base body, the vacuum nozzle is mounted on the base body, and the air outlet of the vacuum nozzle is located in the vacuum cavity, and the air inlet of the vacuum nozzle extends outside the vacuum cavity, and after the packaging bag is sleeved on the vacuum nozzle, the bag opening of the packaging bag is located in the vacuum cavity; a cover body, the cover body being rotatably connected to the upper surface of the base body, a sealing ring being provided between the base body and the cover body and being located on the outer periphery of the vacuum chamber, and the cover body opening or sealing the vacuum chamber; a heat sealing assembly disposed between the base and the cover, the heat sealing assembly being disposed close to the air inlet; A locking assembly is provided between the cover body and the base body, and a driving member drives the locking assembly to switch from a locked state to an unlocked state.

10. A refrigeration device, characterized in that: The refrigeration equipment further comprises a pretreatment device according to any one of claims 1 to 9, wherein the pretreatment chamber is a refrigeration chamber.

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