Juicer

Abstract

The juicer 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, by arranging the positioning device, 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] The present invention relates to the technical field of juicing equipment, and particularly to a juicer. Background Art

[0002] Juicers can process fruits, vegetables, etc. into delicious beverages and have always been popular among people. With the improvement of people's living standards, juicers have moved from beverage stores to the kitchens of thousands of households and become essential helpers for people to enhance their quality of life.

[0003] Generally, users need to assemble a juicer before use and disassemble it after use for convenient cleaning and other operations. During the assembly and use of existing juicers, due to the strong reaction force of the juicing screw, it brings many inconveniences to use or assembly. Therefore, how to solve the influence brought by this reaction force has always been a problem that R & D personnel in this industry have been thinking about. Summary of the Invention

[0004] The purpose of the present invention is to provide a juicer to solve the technical problem of the influence brought by the reaction force of the screw.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: to provide a juicer, including: a main body and a working chamber. The working chamber includes a material chamber and a pressing chamber. The material chamber is communicated with the pressing chamber. A cutting knife is arranged in the material chamber, and a screw is arranged in the pressing chamber. A power unit is arranged on the main body, and the power unit provides power for the cutting knife and the screw. The shaft of the cutting knife is the first transmission shaft, and the shaft of the screw is the second transmission shaft. The first transmission shaft and the second transmission shaft are connected through a transmission mechanism. The transmission mechanism is fixed on the working chamber. The second transmission shaft extends from the pressing chamber into the transmission mechanism. A positioning device is arranged on the transmission mechanism to control the axial movement of the second transmission shaft.

[0006] In the juicer of the present invention, by arranging a positioning device on the transmission mechanism, the axial movement of the second transmission shaft can be prevented. When the screw is pressing, a large reaction force will be exerted on the screw by the material, and this reaction force will be exerted on the second transmission shaft, causing the second transmission shaft to move axially. The axial displacement of the second transmission shaft will cause components such as gears in the transmission mechanism to be misaligned, thereby causing gear teeth to be misaligned or reducing the service life of the gears. At the same time, this reaction force may also cause the working chamber to tend to separate from the main body, resulting in the working chamber shifting or even detaching from the main body during the use of the juicer, or causing damage to or reducing the service life of the lock for fixing the working chamber. Therefore, fixing the transmission mechanism on the working chamber and arranging a positioning device on the transmission mechanism can effectively avoid the misalignment of the gears and also prevent the reduction of the service life of the lock on the working chamber, improving the stability of the working chamber during operation.

[0007] Preferably, the positioning device is a sleeve. The sleeve is sleeved on the second transmission shaft, and the end of the sleeve abuts against the fixed position of the sleeve of the transmission mechanism. Although the process steps of assembling the transmission mechanism and the screw are improved to a certain extent, a series of problems caused by the reaction force of the second transmission shaft can be solved at a very low cost.

[0008] Preferably, the shaft sleeve is made of metal. The shaft sleeve needs to withstand a large reaction force, so a shaft sleeve made of metal can ensure that the shaft sleeve will not be easily damaged and also increase the service life of the shaft sleeve.

[0009] Preferably, the length of the shaft sleeve is greater than or equal to 5 mm. If the length of the shaft sleeve is less than 5 mm, the shaft sleeve is easily damaged, and the shaft sleeve is too small, which is also easy to cause shear damage to the part where the shaft sleeve is fixed, reducing the service life of the transmission mechanism.

[0010] Preferably, the transmission mechanism extends a third transmission shaft from a side away from the working chamber, for docking with the power unit. The third transmission shaft is used to transmit the power of the power unit to the transmission mechanism. Since the third transmission shaft extends from the transmission mechanism, it avoids the force in the working chamber being transmitted to the main machine, causing the working chamber to be offset.

[0011] More preferably, there is only one third transmission shaft. Since the third transmission shaft is often a hexagonal shaft, etc., there is only one third transmission shaft, so when the working chamber is docked with the host, it is only necessary to ensure that one shaft of the third transmission shaft is correctly matched and aligned, and the third transmission shaft and the working chamber can be inserted and docked, which effectively avoids the problem of multiple multi-faceted shafts being matched at the same time and two or more shafts needing to be correctly aligned before insertion.

[0012] More preferably, the host is provided with a first mating position, and the working chamber is provided with a second mating position, and the first mating position and the second mating position enable the working chamber to be assembled with the host along the direction of the third transmission shaft, and can prevent the working chamber from shaking in the circumferential direction of the third transmission shaft. The first mating position can be a slot, and the second mating position can be a rib, or vice versa. The first mating position and the second mating position can ensure that the working chamber does not shake during operation. When the working chamber is assembled to the host, once the first mating position and the second mating position are docked, the working chamber can no longer swing in the circumferential direction.

[0013] More preferably, the coupling length of the first coupling position and the second coupling position is N, the coupling length of the third transmission shaft and the power unit is L, and L is greater than N. Once the first coupling position and the second coupling position are connected, the working chamber cannot be adjusted in the circumferential direction, so it is necessary to ensure that the third transmission shaft is aligned first, so L needs to be greater than N.

[0014] More preferably, the size difference between L and N is greater than or equal to 2 mm. When the size difference between L and N is less than 2 mm, it is very likely that the first mating position and the second mating position have been mated before the third transmission shaft is properly docked. If the edges of the third transmission shaft are offset, it cannot be further inserted, resulting in the working bin being unable to be further assembled onto the main machine.

[0015] More preferably, the third transmission shaft and the second transmission shaft are the same shaft, and the second transmission shaft passes through the transmission mechanism to form the third transmission shaft. Due to the existence of the positioning device, even if the third transmission shaft and the second transmission shaft are the same shaft, the reaction force on the second transmission shaft will not act on the main machine, avoiding a series of problems caused by this reaction force.

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

[0017] Preferably, the position of the screw near the transmission mechanism is the root of the screw, and there is a gap between the root of the screw and the inner wall of the pressing bin. This gap can ensure that the reaction force of the second transmission shaft will not cause increased friction between the screw and the inner wall of the pressing bin, thus increasing power loss.

[0018] Preferably, the transmission ratio of the first transmission shaft and the second transmission shaft by the transmission mechanism is from 0.1 to 10. This setting of the transmission ratio can ensure that the cutting knife does not rotate too fast or too slow relative to the screw. If the transmission ratio of the first transmission shaft and the second transmission shaft is lower than 0.1, it will cause the cutting knife to rotate too slowly, reducing the juicing efficiency. If the transmission ratio of the first transmission shaft and the second transmission shaft is higher than 10, the cutting knife will rotate very fast while the screw rotates relatively slowly. On the one hand, it wastes the power of the cutting knife, and at the same time reduces the cutting force of the cutting knife, also affecting the overall juicing efficiency.

[0019] Preferably, the transmission mechanism is fixed to the working bin by a screw rod, the diameter of the screw rod is 2.5 mm - 12 mm, and the effective fixing length of the screw rod is 5 mm - 30 mm. Since the positioning device makes the reaction force of the second transmission shaft be entirely borne by the housing of the transmission mechanism, when the diameter of the screw rod is less than 2.5 mm, or the effective fixing length of the screw rod is less than 5 mm, the screw rod is not sufficient to bear the reaction force brought by the second transmission shaft, resulting in the screw rod becoming disengaged and the transmission mechanism detaching from the working bin, causing damage; when the diameter of the screw rod is greater than 12 mm, or the effective fixing length of the screw rod is greater than 30 mm, the screw rod is too large in size, affecting the layout setting of the working bin.

[0020] More preferably, at least part of the above screw rod is arranged around the second transmission shaft. Since the reaction force is mainly brought by the second transmission shaft, at least part of the screw rod needs to be arranged around the position of the second transmission shaft to ensure that the housing of the transmission mechanism is evenly stressed and will not be damaged. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Among them:

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

[0024] Figure 2 is a sectional structural schematic diagram of the juicer 1000 according to an embodiment of the present invention;

[0025] Figure 3 is for the juicer 1000 according to an embodiment of the present invention at Figure 2 an enlarged structural schematic diagram at A;

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

[0027] The reference numerals in the drawings are as follows:

[0028] 1000 - juicer;

[0029] 1100 - main body;

[0030] 1110 - power unit;

[0031] 1111 - blind hole;

[0032] 1112 - first gap;

[0033] 1120 - clamping groove;

[0034] 1200 - working chamber;

[0035] 1210 - material bin;

[0036] 1211 - cutting knife;

[0037] 1212 - first transmission shaft;

[0038] 1220 - Pressing bin;

[0039] 1221 - Screw;

[0040] 1222 - Second transmission shaft;

[0041] 1223 - Root of the screw;

[0042] 1224 - Second gap;

[0043] 1230 - Clamping rib;

[0044] 1300 - Transmission mechanism;

[0045] 1310 - Bush;

[0046] 1320 - Third transmission shaft;

[0047] 1330 - Screw rod. Detailed implementation manner

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

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

[0050] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0051] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0052] As Figures 1 - 4 shown Figure 1 is a schematic perspective view of the juicer 1000 according to an embodiment of the present invention, Figure 2 is a schematic cross-sectional view of the juicer 1000 according to an embodiment of the present invention, Figure 3 is a schematic enlarged view of the juicer 1000 according to an embodiment of the present invention at Figure 2 position A, Figure 4 is a schematic perspective view of the working chamber 1200 of the juicer 1000 according to an embodiment of the present invention.

[0053] This embodiment discloses a juicer 1000, which includes a main body 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 communicated. A cutting knife 1211 is arranged in the material chamber 1210, and a screw 1221 is arranged in the pressing chamber 1220. A power unit 1110 is arranged in the main body 1100, and the power unit 1110 provides power for the cutting knife 1211 and the screw 1221.

[0054] A transmission mechanism 1300 is fixed on the working chamber 1200, and the power unit 1110 transmits power to the cutting knife 1211 and the screw 1221 through the transmission mechanism 1300. The shaft of the cutting knife 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 sleeve 1310, is arranged on the transmission mechanism 1300 for fixing the second transmission shaft 1222 to prevent the second transmission shaft 1222 from axially shifting under the reaction force of material pressing. In other embodiments, the positioning device can also be a pin passing through the second transmission shaft or a chuck fixed on the second transmission shaft. The outer side of the sleeve 1310 is fixed on the housing of the transmission mechanism 1300, and the second transmission shaft 1222 can rotate freely in the middle. The sleeve 1310 is made of metal, and the axial length of the sleeve 1310 is 5 mm. In other embodiments, the length of the sleeve can also be 10 mm.

[0055] The transmission mechanism 1300 extends a third transmission shaft 1320 towards the main body 1100 for obtaining power from the power unit 1110. The third transmission shaft 1320 and the second transmission shaft 1222 are the same shaft. In other embodiments, the third transmission shaft can be a separate shaft.

[0056] The main body 1100 is provided with a first mating position, namely the card slot 1120; the working bin 1200 is provided with a second mating position, namely the card rib 1230. When the card slot 1120 and the card rib 1230 cooperate to assemble the working bin 1200 on the main body 1100, there will be no circumferential shaking. The power unit 1110 is provided with a blind hole 1111, which cooperates and couples with the third transmission shaft 1320. The coupling length between the third transmission shaft 1320 and the power unit 1110 is L, and the mating length between the card slot 1120 and the card rib 1230 is N, and 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 bin 1200 is completely assembled on the main body 1100, there is a first gap 1112 between the bottom of the third transmission shaft 1320 and the blind hole 1111, and the first gap 1112 is 2 mm. The position of the screw 1221 close to the transmission mechanism 1300 is the root 1223 of the screw, and there is a second gap 1224 between the root 1223 of the screw and the inner wall of the pressing bin 1220, and the second gap 1224 is 4 mm.

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

[0058] The juicer 1000 of this embodiment axially fixes the second transmission shaft 1222 through the bushing 1310, preventing the second transmission shaft 1222 from being subjected to the pressing reaction force from the screw 1221, resulting in the working bin 1200 being separated from the main body 1100, and improving the working stability of the juicer 1000.

[0059] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A juicer, comprising: A main machine and a working bin, the working bin comprising a material bin and a pressing bin, the material bin is communicated with the pressing bin, a cutting knife is arranged in the material bin, a screw is arranged in the pressing bin, a power unit is arranged on the main machine, the power unit provides power for the cutting knife and the screw, and is characterized in that: the shaft of the cutting knife is a first transmission shaft, the shaft of the screw is a second transmission shaft, the first transmission shaft and the second transmission shaft are connected through a transmission mechanism, the transmission mechanism is fixed on the working bin, the second transmission shaft extends from the pressing bin into the transmission mechanism, and a positioning device is arranged on the transmission mechanism for controlling the axial movement of the second transmission shaft.

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

3. The juice extractor according to claim 2, characterized in that: The shaft sleeve is made of metal.

4. The juice extractor according to claim 2, characterized in that: The length of the shaft sleeve is greater than or equal to 5 mm.

5. The juice extractor according to claim 1, characterized in that: A third transmission shaft extends from a side of the transmission mechanism away from the working compartment, and is used for docking with the power unit.

6. The juice extractor according to claim 5, characterized in that: There is only one third transmission shaft.

7. The juice extractor according to claim 5, characterized in that: The main machine is provided with a first mating position, and the working chamber is provided with a second mating position. The first mating position and the second mating position enable the working chamber to be assembled with the main machine along the direction of the third transmission shaft, and can prevent the working chamber from shaking in the circumferential direction of the third transmission shaft.

8. The juice extractor according to claim 7, characterized in that: The coupling length between the first coupling position and the second coupling position is N, the coupling length between the third transmission shaft and the power unit is L, and L is greater than N.

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

10. The juice extractor according to claim 5, characterized in that: The third transmission shaft and the second transmission shaft are the same shaft, and the second transmission shaft passes through the transmission mechanism to form the third transmission shaft.

11. The juice extractor according to claim 10, characterized in that: The power unit is provided with a blind hole, and the blind hole is used to connect with the third transmission shaft. There is a gap between one end of the third transmission shaft inserted into the blind hole and the bottom of the blind hole.

12. The juice extractor according to claim 1, characterized in that: The position of the screw rod close to the transmission mechanism is the screw rod root, and there is a gap between the screw rod root and the inner wall of the pressing chamber.

13. The juice extractor according to claim 1, characterized in that: The transmission mechanism enables a transmission ratio between the first transmission shaft and the second transmission shaft to be 0.1 to 10.

14. The juice extractor according to claim 1, characterized in that: The transmission mechanism is fixed on the working chamber via a screw rod, the diameter of the screw rod is 2.5mm-12mm, and the effective fixing length of the screw rod is 5mm-30mm.

15. The juice extractor according to claim 14, characterized in that: At least a portion of the screw rod is disposed around the second transmission shaft.

Images