Closed anti-oxidation fruit juicer

Abstract

The invention relates to the technical field of fruit juicers, in particular to a closed anti-oxidation fruit juicer which comprises a frame, a juicing cylinder is arranged at the top end of the frame, a driving motor is arranged in the middle of the frame, one end of the driving motor is in transmission connection with a belt pulley through a belt, and the outer side of the belt pulley is fixedly connected with a rotating cylinder. The top end of one end of the juicing barrel is communicated with the discharging barrel, a blocking assembly is arranged between the top end of the discharging barrel and the feeding port, a mounting plate is arranged at the top end of the juicing barrel, and a balance pipe assembly and a nitrogen charging assembly are arranged at the top end of the mounting plate. The balance pipe assembly comprises a balance pipe body, a diaphragm arranged in the balance pipe body and side covers arranged on the two sides of the balance pipe body, non-crushed materials are used for sealing an inlet part of the juicer in a flowing mode, a proper amount of RO hydrogen-rich water is added, a feeding liquid sealing chamber is formed, a partition plate can play a role in dispersing fruits to the two ends and making contact with a crushing rod, and the crushing effect is improved. And the fruits are crushed in the discharging barrel, so that the crushing effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fruit juicers, in particular to a closed anti-oxidation fruit juicer. Background Art

[0002] Fruit juice, which we often call juice, is a juice product obtained from fruit through physical methods such as squeezing, centrifugation, extraction, etc. It can be divided into many types, including original juice, concentrated juice, pulp juice beverage and juice syrup.

[0003] In the Chinese invention patent: CN202410878489.6, an efficient fruit juice extraction device is introduced, in which the structure solves the problem that when the existing fruit juice extraction device is working, when the pomace falls into the inside of the material guide trough, it is easy to adhere to the inner wall of the material guide trough. At this time, the staff needs to use tools to clean up the pomace adhered to the inner wall of the material guide trough, which brings unnecessary workload to the staff.

[0004] However, in the existing fruit and vegetable juicers, during the juicing process, the materials are crushed and squeezed, and there are the following disadvantages: they are easy to be oxidized and browned, the nutrients are lost, and the original color, aroma and taste of the juice are changed. Summary of the invention

[0005] Technical issues solved

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a closed anti-oxidation fruit juicer, which can effectively solve the problems of the prior art in which materials are easily oxidized and browned during the crushing and squeezing process, loss of nutrients, and changes in the original color, aroma and taste of the juice.

[0007] Technical Solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] The present invention provides a closed anti-oxidation fruit juicer, comprising a frame, a juice extractor barrel is arranged at the top of the frame, a driving motor is arranged in the middle of the frame, one end of the driving motor is connected to a pulley through a belt transmission, the outer side of the pulley is fixedly connected to a rotating drum, the top end of one end of the juice extractor barrel is connected to a lower barrel, a blocking component is arranged between the top end of the lower barrel and a feed port, a mounting plate is arranged at the top end of the juice extractor barrel, a balancing pipe component and a nitrogen filling component are arranged at the top end of the mounting plate, the balancing pipe component comprises a balancing pipe body, a diaphragm arranged in the balancing pipe body and side covers arranged on both sides of the balancing pipe body, both ends of the side cover are connected to air pipes, and the air pipes on both sides are respectively connected to the lower barrel and the juice extractor barrel. The cylinders are kept connected, the discharge cylinder includes a hollow cylinder, a driving motor arranged on the front and rear sides of the hollow cylinder, and a partition plate arranged in the hollow cylinder, the output end of the driving motor is transmission-connected with the rotating rod, a crushing rod is fixed on the outer side of the rotating rod, a partition plate is arranged in the hollow cylinder, the crushing rod is arranged between the partition plates, the bottom end of the juice extraction cylinder is connected with a liquid outlet pipe, the nitrogen filling assembly includes a butt joint tube, an inner ring arranged in the butt joint tube and a movable rod arranged in the inner ring, an air hole is opened in the middle part of the bottom end of the butt joint tube, the bottom end of the butt joint tube is meshed and fixed with the top end of the juice extraction cylinder, a plug is fixed on the top end of the movable rod, a partition plate is fixed in the middle part, and a spring is sleeved between the bottom end of the partition plate and the butt joint tube.

[0010] Furthermore, an arc-shaped groove structure is opened in the middle of the top of the frame, and the bottom of the juice extractor is clamped in its arc-shaped groove. The upper and lower ends of the hollow tube are fixed with docking plates with positioning holes, and the two ends of the hollow tube are respectively fixedly connected to the feed port and the juice extractor.

[0011] Furthermore, a screen is fixed to the bottom end of the juicer, a sealing ring is fixed on the inner wall of the juicer, a threaded juicer ring structure is provided on the outer side of the rotating cylinder, and the sealing ring and the threaded juicer ring structure are in contact, and a lower hopper structure is provided on the outer side of the juicer, a material containing pipe is provided at the bottom end of the screen, a cooling coil is attached to the bottom end of the material containing pipe, and a material containing barrel is fixed to the outer side of the cooling coil.

[0012] Furthermore, the two groups of partition plates are trapezoidal structures, and a partition plate is fixed in the middle of the two groups of partition plates. The rotating rod, the crushing rod and the partition plates are symmetrically arranged in two groups in the hollow cylinder, and the tops of the partition plates on both sides are inclined structures.

[0013] Furthermore, both sides of the balancing pipe body are connected with pressure gauges, and the side covers on both sides are engaged and closed with the two sides of the balancing pipe body through a preset threaded structure.

[0014] Furthermore, the blocking assembly includes a bracket fixed to the top of the mounting plate and a hydraulic cylinder fixed to the bracket, the output end of the hydraulic cylinder is fixedly connected to one side of the blocking plate, and the blocking plate is arranged between the feed port and the discharge barrel.

[0015] Furthermore, a plurality of connection ports are provided on the outer side of the hollow cylinder, one end of the connection port is connected to the connection pipe, a through hole is provided in the middle of the partition plate, the rotating rod is arranged in the through hole, and one end of the connection pipe is connected to the balance pipe body.

[0016] Furthermore, the inner ring is an annular structure with a trapezoidal cross-section, and the plug is arranged at the top of the inner ring, the partition is arranged at the bottom of the inner ring, a sealing ring is arranged at the top of the partition, and a sealing groove is opened at the bottom of the inner ring. The plug is a truncated cone structure, and the size of the plug is larger than the size of the middle groove body of the inner ring.

[0017] Furthermore, the interior of the feed port is filled with RO hydrogen-rich water.

[0018] Furthermore, the cooling coil is a hollow coil structure, and both ends thereof are connected to an external cold source circulation device.

[0019] Beneficial Effects

[0020] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0021] In the present invention, the structure of the feed part of the juicer, i.e., the feed port and the balance pipe assembly, is designed as a storage-type heightening device, and the crushing rod in the lower barrel is designed as a symmetrical double-blade, and the flow of the inlet part of the juicer is sealed with uncrushed materials, and an appropriate amount of RO hydrogen-rich water is added to form a feed liquid sealing chamber. In the blocking assembly, the hydraulic cylinder structure can be operated to drive the blocking plate structure on one side to block the fruit at the top of the feed port, thereby realizing the blocking adjustment of the bottom space, and in the lower barrel at the bottom, the driving motor structures arranged on both sides drive the rotating rod-crushing rod to rotate, and the partition plate structure arranged on the outside of the crushing rod can disperse the fruit to both ends and contact with the crushing rod, so that the fruit is crushed in the lower barrel, thereby improving the crushing effect.

[0022] In the present invention, through the setting of the balance tube assembly, the diaphragm structure arranged in the balance tube body can be adjusted by the air pressure between the juice extraction cylinder and the discharge cylinder, the diaphragm can move in the balance tube, and the pressure gauges on both sides can display the internal air pressure in real time, thereby realizing the sealing function, the juice discharge swirling closed cavity, and reducing the foam generated by the impact.

[0023] In the present invention, by arranging a nitrogen charging assembly at the top of the juice extraction tube and the mounting plate, the user can connect the butt joint tube with the external pipeline. When the internal air pressure is too high, the gas enters the butt joint tube through the air hole, stretches the spring, drives the partition and the plug structure upward, and the gap between the plug and the inner ring becomes larger, and the gas can escape quickly, which can play the role of automatic adjustment. The user can add sufficient nitrogen into the butt joint tube to play the role of regulation.

[0024] In the present invention, by providing a sealing ring-cooling coil structure, the sealing ring structure in the juice extraction cylinder can be in close contact with the threaded juice extraction ring on the rotating cylinder, so it can play the role of sealing the juice extraction, and can cooperate with the nitrogen filling component structure to isolate the external air, thereby ensuring that during the juice extraction process, the oxidation rate of the fruit and the juice is reduced, the drinking taste is improved, and the effective ingredients are protected from being lost or reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a structural cross-sectional view of the juice extractor of the present invention;

[0028] Figure 3 This is a structural breakdown diagram of the hollow tube in the present invention;

[0029] Figure 4 It is a structural explosion diagram of the hollow cylinder in the present invention;

[0030] Figure 5 It is a structural disassembly diagram of the balance pipe assembly in the present invention;

[0031] Figure 6 It is a structural cross-sectional view of the nitrogen filling component in the present invention.

[0032] The numbers in the figure represent: 1, frame; 2, drive motor; 21, pulley; 22, drum; 23, screen; 3, juice extraction drum; 31, sealing ring; 32, material tube; 33, cooling coil; 34, material tube; 4, mounting plate; 5, discharge drum; 51, hollow drum; 511, docking plate; 512, connection port; 52, drive motor; 521, rotating rod; 53, partition plate; 54, partition plate; 541, through hole; 55, powder Broken rod; 56, connecting pipe; 6, feed port; 7, plugging assembly; 71, bracket; 72, hydraulic cylinder; 73, plugging plate; 8, balance pipe assembly; 81, balance pipe body; 82, diaphragm; 83, pressure gauge; 84, side cover; 85, air pipe; 9, liquid outlet pipe; 10, nitrogen charging assembly; 101, butt joint; 1011, air hole; 102, inner ring; 103, movable rod; 1031, plug; 1032, partition; 104, spring. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention will be further described below in conjunction with the embodiments.

[0035] Example: Sealed anti-oxidation fruit juicer, see attached Figure 1 -Attached Figure 6 , comprising a frame 1, a juice extractor 3 is arranged at the top of the frame 1, a driving motor 2 is arranged in the middle of the frame 1, one end of the driving motor 2 is connected to a pulley 21 through a belt transmission, the outer side of the pulley 21 is fixedly connected to a rotating drum 22, the top end of the juice extractor 3 is connected to a lower barrel 5, a blocking component 7 is arranged between the top end of the lower barrel 5 and a feed port 6, a mounting plate 4 is arranged at the top end of the juice extractor 3, a balancing pipe component 8 and a nitrogen charging component 10 are arranged at the top end of the mounting plate 4,

[0036] The balancing tube assembly 8 includes a balancing tube body 81, a diaphragm 82 arranged in the balancing tube body 81 and side covers 84 arranged on both sides of the balancing tube body 81. Both ends of the side covers 84 are connected with air pipes 85, and the air pipes 85 on both sides are respectively connected with the discharge barrel 5 and the juice extraction barrel 3; through the balancing tube assembly 8 set up, the diaphragm 82 structure set in the balancing tube body 81 can be adjusted by the air pressure between the juice extraction barrel 3 and the discharge barrel 5, the diaphragm 82 can be moved in the balancing tube, and the pressure gauges 83 on both sides can display the internal air pressure in real time to realize the sealing function, and the side cover 85 structures on both sides can contact with the middle balancing tube body 81 to achieve communication.

[0037] The material discharge barrel 5 includes a hollow barrel 51, a driving motor 52 disposed on both sides of the hollow barrel 51, and a partition plate 54 disposed in the hollow barrel 51. The output end of the driving motor 52 is transmission-connected to a rotating rod 521. A crushing rod 55 is fixed to the outer side of the rotating rod 521. A partition plate 54 is disposed in the hollow barrel 51. The crushing rod 55 is disposed between the partition plates 54. The bottom end of the juice extraction barrel 3 is connected to a liquid outlet pipe 9.

[0038] The nitrogen charging assembly 10 includes a butt joint tube 101, an inner ring 102 disposed in the butt joint tube 101, and a movable rod 103 disposed in the inner ring 102. An air hole 1011 is opened in the middle of the bottom end of the butt joint tube 101. The bottom end of the butt joint tube 101 is engaged and fixed with the top end of the juice extractor 3. A plug 1031 is fixed to the top of the movable rod 103, and a partition 1032 is fixed to the middle. A spring 104 is sleeved between the bottom end of the partition 1032 and the butt joint tube 101. By connecting the juice extractor 3 and the mounting A nitrogen charging assembly 10 is provided at the top of the plate 4. The user can connect the butt joint tube 101 with an external pipeline. When the internal air pressure is too high, the gas enters the butt joint tube 101 through the air hole 1011, stretching the spring 104, and driving the partition plate 1032 and the plug 1031 structure upward. The gap between the plug 1031 and the inner ring 102 becomes larger, and the gas can escape quickly, which can play the role of automatic adjustment. The user can add sufficient nitrogen into it through the butt joint tube 101 to play the role of regulation.

[0039] An arc-shaped groove structure is provided in the middle of the top of the frame 1, and the bottom of the juice extracting cylinder 3 is clamped in the arc-shaped groove. The upper and lower ends of the hollow cylinder 51 are fixed with docking plates 511 with positioning holes, and the two ends of the hollow cylinder 51 are respectively fixedly connected with the feed port 6 and the juice extracting cylinder 3; a screen 23 is fixed to the bottom end of the juice extracting cylinder 3, and a circle of sealing rings 31 are fixed on the inner side wall of the juice extracting cylinder 3. A threaded juice extracting ring structure is provided on the outer side of the rotating cylinder 22, and the sealing ring 31 is in contact with the threaded juice extracting ring structure, and a lower hopper structure is provided on the outer side of the juice extracting cylinder 3, and the screen 23 is fixed to the bottom end of the juice extracting cylinder 3. A material holding tube 32 is provided at the bottom end of the net 23, a cooling coil 33 is attached to the bottom end of the material holding tube 32, and a material holding barrel 34 is fixed to the outside of the cooling coil 33; in the present invention, through the sealing ring 31-cooling coil 33 structure, the sealing ring 31 structure in the juice extraction barrel 3 can be in close contact with the threaded juice extraction ring on the rotating barrel 22, so it can play the function of sealing the juice extraction, and can cooperate with the nitrogen filling component 10 structure to isolate the external air, thereby ensuring that during the juice extraction process, the oxidation rate of the fruit and the juice is reduced, thereby improving the drinking taste.

[0040] The structure of the feeding part of the juicer, namely the feed port 6 and the balance pipe assembly 8, is designed as a storage-type heightening device. The crushing rod 55 in the lower barrel 5 is designed as a symmetrical double-blade, and the uncrushed material is used to seal the flow of the juicer inlet part, and an appropriate amount of RO hydrogen-rich water is added to form a feeding liquid sealing chamber. In the blocking assembly 7, the hydraulic cylinder 72 structure can be operated to drive the blocking plate 73 structure on one side to block the fruit at the top of the feed port 6, thereby realizing the blocking adjustment of the bottom space. In the lower barrel 5 at the bottom, the driving motor 52 structure arranged on both sides drives the rotating rod 521-crushing rod 55 to rotate, and the partition plate 54 structure arranged on the outside of the crushing rod 55 can disperse the fruit to both ends and contact with the crushing rod 55. The fruit is crushed in the lower barrel 5 to improve the crushing effect.

[0041] The two groups of partition plates 54 are of trapezoidal structure, and a partition plate 53 is fixed in the middle of the two groups of partition plates 54. The rotating rod 521, the crushing rod 55 and the partition plates 54 are symmetrically arranged in two groups in the hollow cylinder 51, and the tops of the partition plates 54 on both sides are inclined structures; both sides of the balancing tube body 81 are connected to the pressure gauge 83, and the side covers 84 on both sides are engaged and closed with the two sides of the balancing tube body 81 through a preset threaded structure.

[0042] The sealing assembly 7 includes a bracket 71 fixed to the top of the mounting plate 4 and a hydraulic cylinder 72 fixed on the bracket 71. The output end of the hydraulic cylinder 72 is fixedly connected to one side of a sealing plate 73. The sealing plate 73 is arranged between the feed port 6 and the discharge barrel 5. A plurality of connecting ports 512 are provided on the outer side of the hollow barrel 51. One end of the connecting port 512 is connected to the connecting pipe 56. A through hole 541 is provided in the middle of the partition plate 54. The rotating rod 521 is arranged in the through hole 541. One end of the connecting pipe 56 is connected to the balancing pipe body 81. The sealing assembly 7 can drive the internal sealing plate 73 structure to extend outward through the outer hydraulic cylinder 72 structure. The fruit in the feed port 6 falls into the discharge barrel 5 for preliminary juicing. After that, the sealing plate 73 can cover the bottom of the feed port 6.

[0043] The inner ring 102 is an annular structure with a trapezoidal cross-section, and the plug 1031 is arranged at the top of the inner ring 102, the partition 1032 is arranged at the bottom of the inner ring 102, a sealing ring is arranged at the top of the partition 1032, and a sealing groove is opened at the bottom of the inner ring 102. The plug 1031 is a truncated cone structure, and the size of the plug 1031 is larger than the size of the middle groove body of the inner ring 102. By arranging a nitrogen charging component 10 at the top of the juicer 3 and the mounting plate 4, the user can connect the butt joint tube 101 with the external pipeline. When the internal air pressure is too high, the gas enters the butt joint tube 101 through the air hole 1011, stretching the spring 104, and driving the partition 1032 and the plug 1031 structure upward. The gap between the plug 1031 and the inner ring 102 becomes larger, and the gas can escape quickly, which can play the function of automatic adjustment. The user can add sufficient nitrogen into the butt joint tube 101 through the butt joint tube 101 to play the function of regulation.

[0044] The interior of the feed port 6 is filled with RO hydrogen-rich water; the cooling coil 33 is a hollow coil structure, and its two ends are connected to the external cold source circulation equipment; the hollow coil structure cooling coil 33 can reduce the oxidation time of the juice during juicing, and cooperate with the balance pipe assembly 8 to create a vacuum environment inside the juicer 3.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. Sealed anti-oxidation fruit juicer, characterized in that: The invention comprises a frame (1), a juice extracting cylinder (3) is arranged at the top of the frame (1), a driving motor (2) is arranged in the middle of the frame (1), one end of the driving motor (2) is connected to a pulley (21) through a belt transmission, the outer side of the pulley (21) is fixedly connected to a rotating cylinder (22), the top end of one end of the juice extracting cylinder (3) is connected to a lower material cylinder (5), a blocking component (7) is arranged between the top end of the lower material cylinder (5) and a feed port (6), a mounting plate (4) is arranged at the top end of the juice extracting cylinder (3), and a balancing pipe component (8) and a nitrogen charging component (10) are arranged at the top end of the mounting plate (4); The balancing tube assembly (8) comprises a balancing tube body (81), a diaphragm (82) arranged in the balancing tube body (81), and side covers (84) arranged on both sides of the balancing tube body (81); both ends of the side covers (84) are connected to air pipes (85), and the air pipes (85) on both sides are respectively connected to the material discharge barrel (5) and the juice extraction barrel (3); The discharge barrel (5) comprises a hollow barrel (51), a driving motor (52) arranged at the front and rear sides of the hollow barrel (51), and a partition plate (54) arranged in the hollow barrel (51); the output end of the driving motor (52) is transmission-connected with a rotating rod (521); a crushing rod (55) is fixed on the outer side of the rotating rod (521); a partition plate (54) is arranged in the hollow barrel (51); the crushing rod (55) is arranged between the partition plates (54); and the bottom end of the juice extraction barrel (3) is connected with a liquid outlet pipe (9); The nitrogen charging assembly (10) comprises a butt joint tube (101), an inner ring (102) arranged in the butt joint tube (101), and a movable rod (103) arranged in the inner ring (102); an air hole (1011) is opened in the middle of the bottom end of the butt joint tube (101); the bottom end of the butt joint tube (101) is meshed and fixed with the top end of the juice extraction tube (3); a plug (1031) is fixed at the top end of the movable rod (103), and a partition (1032) is fixed in the middle; a spring (104) is sleeved between the bottom end of the partition (1032) and the butt joint tube (101).

2. The closed anti-oxidation fruit juicer according to claim 1, characterized in that: An arc-shaped groove structure is provided in the middle of the top of the frame (1), and the bottom of the juice extractor (3) is clamped in the arc-shaped groove. The upper and lower ends of the hollow cylinder (51) are fixed with docking plates (511) with positioning holes, and the two ends of the hollow cylinder (51) are respectively fixedly connected to the feed port (6) and the juice extractor (3).

3. The closed anti-oxidation fruit juicer according to claim 1, characterized in that: A screen (23) is fixed at the bottom end of the juice extracting cylinder (3), a sealing ring (31) is fixed on the inner wall of the juice extracting cylinder (3), a threaded juice extracting ring structure is arranged on the outer side of the rotating cylinder (22), and the sealing ring (31) and the threaded juice extracting ring structure are in contact with each other, and a lower hopper structure is arranged on the outer side of the juice extracting cylinder (3), a material holding pipe (32) is arranged at the bottom end of the screen (23), a cooling coil (33) is attached to the bottom end of the material holding pipe (32), and a material holding cylinder (34) is fixed on the outer side of the cooling coil (33).

4. The closed anti-oxidation fruit juicer according to claim 1, characterized in that: The two groups of partition plates (54) are of a trapezoidal structure, a partition plate (53) is fixed in the middle of the two groups of partition plates (54), two groups of rotating rods (521), crushing rods (55) and partition plates (54) are symmetrically arranged in the hollow cylinder (51), and the top ends of the partition plates (54) on both sides are of an inclined structure.

5. The closed anti-oxidation fruit juicer according to claim 4, characterized in that: Both sides of the balancing pipe body (81) are connected to a pressure gauge (83), and the side covers (84) on both sides are meshed and closed with the two sides of the balancing pipe body (81) through a preset threaded structure.

6. The closed anti-oxidation fruit juicer according to claim 1, characterized in that: The blocking assembly (7) comprises a bracket (71) fixed to the top of the mounting plate (4) and a hydraulic cylinder (72) fixed to the bracket (71); the output end of the hydraulic cylinder (72) is fixedly connected to one side of a blocking plate (73); and the blocking plate (73) is arranged between the feed port (6) and the discharge barrel (5).

7. The closed anti-oxidation fruit juicer according to claim 1, characterized in that: The outer side of the hollow cylinder (51) is provided with a plurality of connection ports (512), one end of each connection port (512) is connected to a connection pipe (56), a through hole (541) is provided in the middle of the partition plate (54), the rotating rod (521) is arranged in the through hole (541), and one end of each connection pipe (56) is connected to a balance pipe body (81).

8. The closed anti-oxidation fruit juicer according to claim 1, characterized in that: The inner ring (102) is an annular structure with a trapezoidal cross-section, and the plug (1031) is arranged at the top end of the inner ring (102), the partition (1032) is arranged at the bottom end of the inner ring (102), a sealing ring is arranged at the top end of the partition (1032), and a sealing groove is opened at the bottom end of the inner ring (102), the plug (1031) is a truncated cone structure, and the size of the plug (1031) is larger than the size of the middle groove body of the inner ring (102).

9. The closed anti-oxidation fruit juicer according to claim 1, characterized in that: The interior of the feed port (6) is filled with RO hydrogen-rich water.

10. The sealed anti-oxidation fruit juicer according to claim 3, characterized in that: The cooling coil (33) is a hollow coil structure, and both ends thereof are connected to an external cold source circulation device.

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