Juicer

Abstract

The utility model discloses a juicer which comprises a main machine and a working bin, the working bin comprises a material bin and a squeezing bin, the material bin is communicated with the squeezing bin, a cutting knife is arranged in the material bin, a screw rod is arranged in the squeezing bin, a power unit is arranged on the main machine, and the power unit provides power for the cutting knife and the screw rod. A shaft of the cutter is a first transmission shaft, a shaft of the screw is a second transmission shaft, the first transmission shaft is connected with the second transmission shaft through a transmission mechanism, the transmission mechanism is fixed on the working bin, the second transmission shaft extends into the transmission mechanism from the squeezing bin, and a positioning device is arranged on the transmission mechanism. The second transmission shaft is used for controlling axial movement of the second transmission shaft. According to the juicer, the positioning device is arranged, so that the gear can be effectively prevented from deviating, meanwhile, the service life of the lock catch on the working bin can be prevented from being shortened, and the working stability of the working bin is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of juicing equipment, and more particularly to a juicer. Background Technology

[0002] Juicers, capable of processing fruits and vegetables into delicious beverages, have always been popular. With the improvement of living standards, juicers have moved from beverage shops into the kitchens of countless households, becoming an essential helper for enhancing people's quality of life.

[0003] Juicers typically require assembly before use and disassembly after use for cleaning. However, the strong reaction force of the juicing screw in existing juicers causes considerable inconvenience during assembly and use. Therefore, addressing the impact of this force has been a persistent challenge for researchers in the industry. Utility Model Content

[0004] The purpose of this invention is to provide a juicer that solves the technical problem of the impact of screw reaction force.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a juicer is provided, comprising: a main unit and a working chamber. The working chamber includes a material chamber and a pressing chamber. The material chamber is connected to the pressing chamber. A cutting blade is provided in the material chamber, and a screw is provided in the pressing chamber. A power unit is provided on the main unit, which provides power to the cutting blade and the screw. The shaft of the cutting blade is a first transmission shaft, and the shaft of the screw is a second transmission shaft. The first transmission shaft and the second transmission shaft are connected by a transmission mechanism, which is fixed on the working chamber. The second transmission shaft extends from the pressing chamber into the transmission mechanism. A positioning device is provided on the transmission mechanism to control the axial movement of the second transmission shaft.

[0006] This juicer, by incorporating a positioning device on its transmission mechanism, prevents axial movement of the second transmission shaft. During pressing, the screw experiences a significant reaction force from the material, which is applied to the second transmission shaft, causing it to move axially. This axial displacement of the second transmission shaft can lead to misalignment of gears and other components within the transmission mechanism, resulting in gear misalignment or reduced gear lifespan. Simultaneously, this reaction force may cause the working chamber to detach from the main unit, leading to displacement or even separation during juicer use, or damage to the locking mechanism securing the working chamber or reducing its lifespan. Therefore, fixing the transmission mechanism to the working chamber and incorporating a positioning device effectively prevents gear misalignment and also prevents the locking mechanism on the working chamber from losing its lifespan, thus improving the stability of the working chamber during operation.

[0007] Preferably, the positioning device is a bushing. This bushing is fitted inside the second drive shaft, with its end abutting against the bushing of the transmission mechanism for fixation. Although this increases the assembly process steps for the transmission mechanism and the screw to some extent, it solves a series of problems caused by the reaction force of the second drive shaft at minimal cost.

[0008] Preferably, the bushing is made of metal. Since the bushing needs to withstand significant reaction forces, a metal bushing ensures it won't be easily damaged and extends its service life.

[0009] Preferably, the length of the bushing is greater than or equal to 5mm. If the length of the bushing is less than 5mm, the bushing is easily damaged. Also, because the bushing is too small, it is prone to shearing damage to the parts that fix the bushing, reducing the service life of the transmission mechanism.

[0010] Preferably, a third drive shaft extends from the side of the transmission mechanism away from the working chamber for docking with the power unit. This third drive shaft transmits power from the power unit to the transmission mechanism. Because the third drive shaft extends from the transmission mechanism, it prevents the force within the working chamber from being transmitted to the main unit, thus avoiding misalignment of the working chamber.

[0011] More preferably, there is only one third drive shaft. Since the third drive shaft is often a hexagonal shaft, and there is only one third drive shaft, when the working chamber is connected to the main unit, it is only necessary to ensure that one shaft of the third drive shaft is correctly aligned before the third drive shaft and the working chamber can be inserted and connected. This effectively avoids the problem of multiple hexagonal shafts being connected at the same time, and the need for two or more shafts to be correctly aligned before insertion.

[0012] More preferably, the main unit is provided with a first mating position, and the working chamber is provided with a second mating position. The first and second mating positions allow the working chamber to be assembled with the main unit along the direction of the third drive shaft and prevent the working chamber from wobbling in the circumferential direction of the third drive shaft. The first mating position can be a slot, and the second mating position can be a retaining rib, or vice versa. The first and second mating positions ensure that the working chamber does not wobble during operation. When the working chamber is assembled onto the main unit, once the first and second mating positions are engaged, the working chamber can no longer oscillate in the circumferential direction.

[0013] More preferably, the mating length of the first and second mating positions is N, and the coupling length between the third drive shaft and the power unit is L, where L is greater than N. Once the first and second mating positions are engaged, the working chamber cannot be adjusted circumferentially. Therefore, it is necessary to ensure that the third drive shaft is aligned first, hence L needs to be greater than N.

[0014] More preferably, the size difference between L and N is greater than or equal to 2mm. When the size difference between L and N is less than 2mm, it is very likely that the third drive shaft has not been properly aligned, but the first mating position and the second mating position have already aligned. If the corner of the third drive shaft is misaligned, it cannot be further inserted, which means that the working chamber cannot be further assembled on the main unit.

[0015] More preferably, the third drive shaft and the second drive shaft are the same shaft, with the second drive shaft passing through the transmission mechanism to form the third drive shaft. Due to the presence of the positioning device, even if the third and second drive shafts are the same shaft, the reaction force on the second drive shaft will not act on the main unit, thus avoiding a series of problems caused by this reaction force.

[0016] More preferably, the power unit is provided with a blind hole for docking with a third drive shaft, and there is a gap between the end of the third drive shaft inserted into the blind hole and the bottom of the blind hole. This gap further ensures that the axial force on the third drive shaft is not transmitted to the main unit.

[0017] Preferably, the screw is positioned near the transmission mechanism at its root, and a gap exists between the screw root and the inner wall of the pressing chamber. This gap ensures that the reaction force of the second transmission shaft does not cause increased friction between the screw and the inner wall of the pressing chamber, thereby increasing power loss.

[0018] Preferably, the transmission mechanism sets the transmission ratio between the first and second transmission shafts to be between 0.1 and 10. This transmission ratio ensures that the cutting blade rotates neither too fast nor too slow relative to the screw. If the transmission ratio between the first and second transmission shafts is less than 0.1, the cutting blade will rotate too slowly, reducing juicing efficiency. If the transmission ratio is greater than 10, the cutting blade will rotate too quickly while the screw rotates too slowly, wasting the cutting blade's power and reducing its cutting force, thus also affecting overall juicing efficiency.

[0019] Preferably, the transmission mechanism is fixed to the working chamber by a screw rod with a diameter of 2.5mm-12mm and an effective fixing length of 5mm-30mm. Since the positioning device bears all the reaction force of the second transmission shaft through the housing of the transmission mechanism, when the screw rod's diameter is less than 2.5mm or its effective fixing length is less than 5mm, the screw rod is insufficient to withstand the reaction force from the second transmission shaft, causing it to disengage and detach from the working chamber, resulting in damage. When the screw rod's diameter is greater than 12mm or its effective fixing length is greater than 30mm, the screw rod becomes too large, affecting the layout of the working chamber.

[0020] More preferably, at least a portion of the aforementioned screw rods are arranged around the second drive shaft. Since the reaction force is mainly generated by the second drive shaft, it is necessary for at least a portion of the screw rods to be positioned around the second drive shaft to ensure that the housing of the transmission mechanism is subjected to uniform force and is not damaged. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] in:

[0023] Figure 1 This is a three-dimensional structural diagram of the juicer 1000 according to an embodiment of the present utility model;

[0024] Figure 2 This is a cross-sectional view of the juicer 1000 according to an embodiment of the present utility model;

[0025] Figure 3 The juicer 1000 of this utility model embodiment is in Figure 2 An enlarged structural diagram at point A;

[0026] Figure 4 This is a three-dimensional structural diagram of the working chamber 1200 of the juicer 1000 according to an embodiment of the present utility model;

[0027] The labels for the attached figures are as follows:

[0028] 1000 — Juicer;

[0029] 1100 — Main unit;

[0030] 1110—Power unit;

[0031] 1111—Blind hole;

[0032] 1112—First gap;

[0033] 1120 — Card slot;

[0034] 1200 – Working Pod;

[0035] 1210 — Material Warehouse;

[0036] 1211 — Cutting tool;

[0037] 1212 — First drive shaft;

[0038] 1220 — Crushing bin;

[0039] 1221 — Screw;

[0040] 1222—Second drive shaft;

[0041] 1223—Root of the screw;

[0042] 1224—Second gap;

[0043] 1230 — Reinforcing bar;

[0044] 1300 — Transmission mechanism;

[0045] 1310 — Bushing;

[0046] 1320 – Third drive shaft;

[0047] 1330 - Screw rod. Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0050] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0052] like Figures 1-4 As shown, Figure 1 This is a three-dimensional structural diagram of the juicer 1000 according to an embodiment of the present invention. Figure 2 This is a cross-sectional view of the juicer 1000 according to an embodiment of the present invention. Figure 3 The juicer 1000 of this utility model embodiment is in Figure 2 A magnified structural diagram at point A. Figure 4 This is a three-dimensional structural diagram of the working chamber 1200 of the juicer 1000 according to an embodiment of the present utility model.

[0053] This embodiment discloses a juicer 1000, including a main unit 1100 and a working chamber 1200. The working chamber 1200 includes a material chamber 1210 and a pressing chamber 1220. The material chamber 1210 and the pressing chamber 1220 are connected. A cutting blade 1211 is provided in the material chamber 1210, and a screw 1221 is provided in the pressing chamber 1220. A power unit 1110 is provided in the main unit 1100, which provides power to the cutting blade 1211 and the screw 1221.

[0054] A transmission mechanism 1300 is fixed on the working chamber 1200. The power unit 1110 transmits power to the cutting blade 1211 and the screw 1221 through the transmission mechanism 1300. The shaft of the cutting blade 1211 is the first transmission shaft 1212, and the shaft of the screw 1221 is the second transmission shaft 1222. The first transmission shaft 1212 and the second transmission shaft 1222 are connected through the transmission mechanism 1300. The transmission ratio of the first transmission shaft 1212 and the second transmission shaft 1222 is 4. In other embodiments, the transmission ratio of the first transmission shaft and the second transmission shaft can also be 0.1 or 10. The second transmission shaft 1222 extends from the pressing chamber 1220 into the transmission mechanism 1300. A positioning device, namely a bushing 1310, is provided on the transmission mechanism 1300 to fix the second transmission shaft 1222 and prevent the second transmission shaft 1222 from shifting axially due to the reaction force of material pressing. In other embodiments, the positioning device may be a pin that passes through the second drive shaft or a chuck fixed to the second drive shaft. The outer side of the bushing 1310 is fixed to the housing of the transmission mechanism 1300, while the middle allows the second drive shaft 1222 to rotate freely. The bushing 1310 is made of metal, and its axial length is 5 mm. In other embodiments, the length of the bushing may also be 10 mm.

[0055] The transmission mechanism 1300 extends a third drive shaft 1320 toward the main unit 1100 for obtaining power from the power unit 1110. The third drive shaft 1320 is the same shaft as the second drive shaft 1222. In other embodiments, the third drive shaft may be a separate shaft.

[0056] The main unit 1100 has a first mating position, namely a slot 1120; the working chamber 1200 has a second mating position, namely a retaining rib 1230. The slot 1120 and the retaining rib 1230 cooperate to prevent circumferential wobbling when the working chamber 1200 is assembled on the main unit 1100. The power unit 1110 has a blind hole 1111, which is coupled to the third drive shaft 1320. The coupling length between the third drive shaft 1320 and the power unit 1110 is L, and the mating length between the slot 1120 and the retaining rib 1230 is N, where L is greater than N. Specifically, the length of L is 30 mm, and the length of N is 10 mm. In other embodiments, L can be 2 mm longer than N. When the working chamber 1200 is fully assembled on the main unit 1100, there is a first gap 1112 between the bottom of the third drive shaft 1320 and the blind hole 1111, and the first gap 1112 is 2 mm. The screw 1221 is located near the transmission mechanism 1300 at the screw root 1223. There is a second gap 1224 between the screw root 1223 and the inner wall of the pressing chamber 1220. The second gap 1224 is 4mm.

[0057] The transmission mechanism 1300 is fixed to the working chamber 1200 by six screw rods 1330, and the working chamber 1200 has threads at corresponding positions on the screw rods 1330. Four of the screw rods 1330 are distributed around the third transmission shaft 1320. The diameter of the screw rods 1330 is 2.5 mm, and the effective fixing length of the screw rods 1330 is 5 mm. In other embodiments, the diameter of the screw rods can also be 5 mm or 12 mm, and the effective fixing length can also be 10 mm or 30 mm.

[0058] In this embodiment, the juicer 1000 fixes the second drive shaft 1222 axially through the bushing 1310 to prevent the second drive shaft 1222 from being subjected to the pressing reaction force from the screw 1221, which would cause the working chamber 1200 to detach from the main unit 1100, thereby improving the working stability of the juicer 1000.

[0059] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A juicer, comprising: The system comprises a main unit and a working chamber, the working chamber including a material chamber and a pressing chamber, the material chamber being connected to the pressing chamber, a cutting blade being installed in the material chamber, and a screw being installed in the pressing chamber. The main unit is equipped with a power unit that provides power to the cutting blade and the screw. The cutting blade's shaft is a first transmission shaft, and the screw's shaft is a second transmission shaft. The first and second transmission shafts are connected by a transmission mechanism fixed to the working chamber. The second transmission shaft extends from the pressing chamber into the transmission mechanism. The transmission mechanism is equipped with a positioning device for controlling the axial movement of the second transmission shaft.

2. The juicer according to claim 1, characterized in that, The positioning device is a bushing.

3. The juicer according to claim 2, characterized in that, The bushing is made of metal.

4. The juicer according to claim 2, characterized in that, The length of the bushing is greater than or equal to 5 mm.

5. The juicer according to claim 1, characterized in that, The transmission mechanism extends a third transmission shaft from the side away from the working chamber, for docking with the power unit.

6. The juicer according to claim 5, characterized in that, There is one and only one third drive shaft.

7. The juicer according to claim 5, characterized in that, The main unit is provided with a first mating position, and the working compartment is provided with a second mating position. The first mating position and the second mating position enable the working compartment to be assembled with the main unit along the direction of the third drive shaft, and prevent the working compartment from shaking in the circumferential direction of the third drive shaft.

8. The juicer according to claim 7, characterized in that, The mating length of the first mating position and the second mating position is N, and the coupling length between the third drive shaft and the power unit is L, where L is greater than N.

9. The juicer according to claim 8, characterized in that, The size difference between L and N is greater than or equal to 2 mm.

10. The juicer according to claim 5, characterized in that, The third drive shaft is the same shaft as the second drive shaft, and the second drive shaft passes through the transmission mechanism to form the third drive shaft.

11. The juicer according to claim 10, characterized in that, The power unit is provided with a blind hole for docking with the third drive shaft. There is a gap between the end of the third drive shaft inserted into the blind hole and the bottom of the blind hole.

12. The juicer according to claim 1, characterized in that, The screw is located near the transmission mechanism at its root, and there is a gap between the screw root and the inner wall of the pressing chamber.

13. The juicer according to claim 1, characterized in that, The transmission mechanism makes the transmission ratio between the first transmission shaft and the second transmission shaft 0.1 to 10.

14. The juicer according to claim 1, characterized in that, The transmission mechanism is fixed to the working chamber by a screw rod with a diameter of 2.5mm-12mm and an effective fixing length of 5mm-30mm.

15. The juicer according to claim 14, characterized in that, At least a portion of the screw rod is arranged around the second drive shaft.

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