WO2014029213A1

WO2014029213A1 - Juicer

Info

Publication number: WO2014029213A1
Application number: PCT/CN2013/073342
Authority: WO
Inventors: 周劲松
Original assignee: 罗俊玉
Priority date: 2012-08-22
Filing date: 2013-03-28
Publication date: 2014-02-27
Also published as: CN202760966U

Abstract

Disclosed is an improved juicer, comprising a machine base (1); a casing (2) fixedly mounted longitudinally on the machine base, a side wall of the casing being provided with a residue outlet port (21) and a juice outlet port (22), and the bottom face of the casing having a juice collection channel (23) leading to the juice outlet port; a mesh barrel (5) and a rotating brush (6) sheathed in succession from inside to outside between a pressing screw (3) and the casing; and a top cap (7) sheathed on the casing. A single end axle positioning structure is used for the pressing screw, the centre of the bottom part thereof having a rotating axle (31). An electric motor shaft (8) of the machine base passes through a centre hole (24) in the bottom face of the casing matching an axle hole (9) of the rotating axle (9). A boss (71) is formed at the centre inside the top cap, pressing onto or pressing close to a top end plane (33) of the pressing screw. A three-stage shaft positioning structure is used for the electric motor shaft (8) of the machine base, namely a top end guide stage (81), a polygonal drive stage (82) below the guide stage, and a cylindrical positioning stage (83). Accordingly, the axle hole in the bottom part of the pressing screw has a corresponding segmented structure.

Description

[Name of invention made by ISA according to Rule 37.2] Juicer

Technical field

The utility model relates to a juice extracting machine, which is an improved juice extracting machine which is improved by the prior art juice extracting machine.

Background technique

At present, most of the household juicers on the market are installed on the side of the machine base and the press assembly. During the work, the horizontally moving press material is pressed by the juice, and the juice is not well flowed down, so the juice yield is low. In particular, the high-viscosity press material cannot be effectively pressed. At the same time, during long-term use, the mesh on the mesh cylinder is blocked by the crushing residue, and the mesh cylinder needs to be frequently disassembled and cleaned. Chinese patent ZL200780001269.X discloses a juicer, the outer casing accommodating the screw is vertically fixed on the base, and a rotary brush is arranged between the mesh cylinder and the outer casing for continuously cleaning the mesh cylinder and the outer casing. Overcoming the defects of the prior art, but because the positioning of the press screw adopts the synchronous positioning of the upper and lower shafts, the machining process is many, the structure is more complicated, and the motor shaft is used as the lower positioning axis, which is a polygonal axis, and needs to have both transmission and positioning. The requirements are high, the machining is difficult, and the coaxiality of the upper and lower shafts and the matching accuracy with the shaft hole also meet certain requirements, which further increases the processing difficulty. On the other hand, in order to increase the safety performance, the juicer forms a fixing protrusion on the outer periphery of the cover, and a fixing groove is formed on the upper surface of the support frame, and a magnetic switch is arranged therein, and when the two are aligned, the magnetic switch is turned on. The operation switch on the base is turned on. At this time, the juice extraction operation can be performed; however, since the design has the fixing groove provided on the upper surface of the support frame, even if the outer casing in which all the components are assembled is not installed as specified In place, as long as the fixing protrusion on the cover can align the fixing groove of the supporting frame, the magnetic switch will be turned on, and the juice operation can be performed through the operation switch on the machine base, so the safety performance of the juicer is not obtained. Real protection.

technical problem

In order to overcome the deficiencies of the prior art, the present invention provides an improved juicer.

Technical solution

The technical solution adopted by the utility model to solve the problem is:

An improved juicer comprising a base on which a housing is fixedly mounted in a longitudinal direction, the side wall of the housing is provided with a residue outlet end and a juice outlet end, and the bottom surface of the housing has a juice collecting passage leading to the juice outlet end a pressing cylinder and a rotating brush are arranged in order from the inside to the outside of the pressing screw and the outer casing, and the outer casing is sleeved with a top cover. The pressing screw adopts a single-end shaft positioning structure, and the bottom center has a rotating shaft. The motor shaft of the base is engaged with the shaft hole of the rotating shaft through a central hole of the bottom surface of the casing, and a boss is formed at a center of the inner side of the top cover to be pressed against or close to the top plane of the press screw; The motor shaft adopts a three-stage shaft positioning structure, that is, a leading portion of the top end, a polygonal transmission section below the guiding section, and a cylindrical positioning section. Accordingly, the shaft hole of the bottom of the pressing screw is also a corresponding segmented structure.

As a preferred embodiment of the present invention, the guiding section is a cylindrical guiding section, and the lower part is a middle-shaped polygonal transmission section and a lower-stage cylindrical positioning section. Correspondingly, the shaft hole of the bottom of the pressing screw also includes an upper section. Cylindrical guiding hole, polygonal driving hole of the middle section and cylindrical positioning hole of the lower section;

Or: the middle section of the motor shaft is a cylindrical positioning section, the lower section is a polygonal transmission section, and the guiding section is a circular chamfer of the top edge of the cylindrical positioning section.

As an improvement of the utility model, the boss has a central hole, and the center hole is filled with a wear-resistant material to form a wear-resistant cylinder.

As a further improvement of the present invention, the outer periphery of the top cover protrudes with a pressing piece, and the side wall of the base support frame is provided with a sliding slot, and the sliding groove is provided with an elastic switch contact piece, when the top cover and the base When installed in position, the flexible switch contact is pressed by the tablet and the operation switch is turned on.

Beneficial effect

The utility model has the beneficial effects that the pressing screw of the utility model adopts a single-end shaft positioning structure, and the three-stage shaft positioning structure of the motor shaft is matched with the shaft hole at the bottom of the pressing screw, thereby avoiding the prior art adopting the axial positioning of the two ends. The structure design is complicated and the processing precision is high. The three-stage shaft hole matching structure of the utility model, the motor shaft drives the pressing screw through the polygonal transmission section, and realizes the pressing screw through the cylindrical positioning section. The precise cooperation prevents the screw from swinging, the design is relatively simple, and the machining precision is also easier to realize. At the same time, the boss at the center of the top cover is pressed against or close to the top plane of the press screw, so that the press screw can be smoothly operated under the driving of the motor. When the side wall of the base support bracket is provided with a sliding groove, and the structure of the elastic switch contact piece is arranged in the sliding groove, the switch can be uniquely connected only when the outer casing with all the components is mounted on the base as required. The other position switches cannot be turned on, so the safety performance of the juicer is truly guaranteed.

DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Figure 1 is an exploded perspective view of the utility model;

2 is an enlarged view of a partial structure of an embodiment of the present invention;

Figure 3 is an enlarged view of the press screw corresponding to the embodiment of Figure 2;

4 is an enlarged partial view showing another embodiment of the present invention.

Embodiments of the invention

Referring to Figures 1, 2 and 3, an improved juicer includes a base 1 on which a housing 2 is fixedly mounted in a longitudinal direction, the side wall of the housing 2 being provided with a residue outlet end 21 and a juice outlet The end 22 has a juice collecting passage 23 leading to the juice outlet end 22, and a mesh cylinder 5 and a rotating brush 6 are sequentially arranged from the inside to the outside of the pressing screw 3 and the outer casing 2, and the outer casing 2 is sleeved. a top cover 7, the press screw 3 adopts a single-end shaft positioning structure, and has a rotating shaft 31 at the bottom center thereof, and the motor shaft 8 of the base 1 passes through the central hole 24 of the bottom surface of the outer casing 2 and the rotating shaft 31 The shaft hole 9 is fitted, and the boss 71 is formed at the inner center of the top cover 7 to be pressed against or close to the top end plane 33 of the press screw 3; the motor shaft 8 of the base 1 adopts a three-stage shaft positioning structure, that is, The leading section 81 of the top end, the polygonal transmission section 82 below the guiding section 81 and the cylindrical positioning section 83, correspondingly, the shaft hole 9 at the bottom of the pressing screw 3 is also a corresponding segmented structure.

In this embodiment, the guiding section 81 is a cylindrical guiding section, and the lower part is a middle section of the polygonal transmission section 82 and the lower section of the cylindrical positioning section 83. Accordingly, the shaft hole 9 at the bottom of the pressing screw 3 is also included. The upper cylindrical guide hole 91, the middle polygonal drive hole 92, and the lower cylindrical positioning hole 93.

Referring to Figure 4, there is shown a partial enlarged view of another embodiment of the present invention. The middle section of the motor shaft 8 is a cylindrical positioning section 83, and the lower section is a polygonal transmission section 82. The guiding section 81 is a circular chamfer of the top edge of the cylindrical positioning section 83.

The three-stage structure design of the motor shaft 8 of the utility model has the looseness of the guiding section 81 of the upper section and the shaft hole 9 of the bottom of the pressing screw, as long as the guiding installation of the pressing screw 3 is facilitated; the polygonal transmission section 82 of the motor shaft 8 is The inner hexagonal shape corresponds to the polygonal driving hole 92 at the bottom of the pressing screw, and the matching precision requirement is low, and the driving requirement of the motor shaft to the pressing screw can be satisfied; the cylindrical positioning section 83 corresponds to the cylindrical positioning hole 93 at the bottom of the pressing screw, The precision of the matching precision is high, and the requirement of accurate positioning of the pressing screw 3 is required to reduce the swing of the pressing screw during the working process of the juicer. Compared with the prior art two-axis positioning mode, the single-end three-segment structure design of the utility model avoids the problem that the upper and lower shafts are simultaneously positioned to have high coaxiality requirements, and the polygonal motor shaft needs to realize transmission and positioning at the same time. The utility model has the problems of large processing difficulty, and the utility model realizes the transmission and positioning cooperation of the motor shaft and the pressing screw through the single-end segmented shaft hole matching structure, the design is relatively simple, the machining precision is also more easily realized, and the top cover is matched at the same time. The central boss is pressed against or close to the top surface of the press screw, so that the press screw can be smoothly operated by the motor.

As a preferred embodiment of the present invention, referring to FIG. 1, since the pressing screw 3 has friction with the inner side of the top cover 7 during the rotation, in the embodiment, the boss 71 of the top cover 7 has a central hole. The center hole is filled with a wear-resistant material to form the wear-resistant cylinder 72, which avoids direct wear of the top cover 7 and is easy to replace.

In order to reduce the resistance of the operation of the press screw 3 and reduce the friction between the tip end plane 33 and the center boss 71 of the top cover 7, the tip end plane 33 of the present invention is provided with a bump 34.

The outer periphery of the top cover 7 protrudes from the pressing piece 73. The side wall of the support frame 14 of the base 1 is provided with a sliding slot 12, and the elastic sliding contact piece 13 is disposed in the sliding slot 12, only when the outer casing 2 is equipped with all components When mounted on the machine base as required, the pressing piece 73 of the outer periphery of the top cover 7 is mounted in position along the sliding groove 12, the elastic switch contact piece 13 is pressed by the pressing piece 73, and the operation switch 15 is turned on. In order to carry out the juice extraction operation; in other installation positions, the operation switch 15 cannot be turned on, and therefore, the safety performance of the juicer is truly guaranteed.

Claims

An improved juicer comprising a base (1) on which a casing (2) is fixedly mounted in a longitudinal direction, the side wall of the casing (2) being provided with a residue outlet end (21) and a juice outlet The end (22) has a juice collecting passage (23) leading to the juice outlet end (22), and a mesh tube (5) is arranged between the pressing screw (3) and the outer casing (2) from the inside to the outside. a rotating brush (6), the outer casing (2) is sleeved with a top cover (7), characterized in that: the pressing screw (3) adopts a single-end shaft positioning structure, and the bottom center has a rotating shaft (31) The motor shaft (8) of the base (1) is engaged with the shaft hole (9) of the rotating shaft (31) through a central hole (24) of the bottom surface of the outer casing (2), the top cover (7) a boss (71) is formed on or near the top plane (33) of the press screw (3) at the inner center; the motor shaft (8) of the base (1) adopts a three-stage shaft positioning structure, that is, a leading guiding section (81), a polygonal transmission section (82) below the guiding section (81) and a cylindrical positioning section (83), respectively, The shaft hole (9) at the bottom of the press screw (3) is also a corresponding segmented structure.
The improved juicer of claim 1 wherein said guide section (81) is a cylindrical guide section followed by a mid-section polygonal drive section (82) and a lower section cylindrical positioning section ( 83) Correspondingly, the shaft hole (9) at the bottom of the pressing screw (3) also includes an upper cylindrical guiding hole (91), a middle polygonal driving hole (92) and a lower cylindrical positioning hole (93). .
The improved juicer according to claim 1, characterized in that the middle section of the motor shaft (8) is a cylindrical positioning section (83), and the lower section is a polygonal transmission section (82), and the guiding section (81) ) is a chamfer of the top edge of the cylindrical positioning section (83).
The improved juicer according to claim 1, wherein said boss (71) is provided with a central hole, and the center hole is filled with a wear-resistant material to form a wear-resistant cylinder (72).
A modified juicer according to claim 1 or 2 or 3 or 4, characterized in that the top end plane (33) of the press screw (3) is convexly raised with a bump (34).
The improved juice extractor according to claim 1 or 2 or 3 or 4, characterized in that: the outer periphery of the top cover (7) has a pressing piece (73); the base (1) support frame (14) The side wall is provided with a sliding slot (12), and the sliding slot (12) is provided with a resilient switch contact piece (13). When the top cover (7) and the base (1) are mounted in position, the elastic switch The contact piece (13) is pressed by the pressing piece (73), and the operation switch (15) is turned on.