CN212755377U

CN212755377U - Cutter assembly and stirrer

Info

Publication number: CN212755377U
Application number: CN202021010833.3U
Authority: CN
Inventors: 李兴智
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-03-23
Anticipated expiration: 2030-06-04

Abstract

The application provides a cutter assembly and a stirrer. The cutter assembly comprises a cutter holder, a shaft sleeve and a stirring cutter. The knife tackle includes the mounting hole. The shaft sleeve is arranged in the mounting hole, and the shaft sleeve is axially consistent with the mounting hole. The stirring knife comprises a knife shaft, and the knife shaft is rotatably inserted into the shaft sleeve. The blender includes a cutter assembly. In the scheme, the shaft sleeve can be independently processed without being formed on the cup body in a drawing mode, so that the processing cost and the processing difficulty are reduced. The stirring machine comprises a cutter component which is detachably connected with the cup base, so that the cutter component is more convenient to assemble, disassemble and clean.

Description

Cutter assembly and stirrer

Technical Field

The application relates to the technical field of small household appliances, in particular to a cutter assembly and a stirrer.

Background

The cutter assembly in the stirrer is used for crushing food materials and is arranged at the bottom of the cup body. In the existing stirring machine, a sleeve is formed at the bottom of a cup body through a drawing process, and a stirring knife is arranged in the sleeve. The mounting structure of the cutter component is high in cost and large in processing difficulty.

SUMMERY OF THE UTILITY MODEL

The application provides a modified cutter unit and mixer, can reduce cutter unit's cost and processing degree of difficulty.

A cutter assembly, comprising:

the tool apron comprises a mounting hole;

the shaft sleeve is arranged in the mounting hole, and the axial direction of the shaft sleeve is consistent with that of the mounting hole; and

the stirring knife comprises a knife shaft, and the knife shaft is rotatably inserted into the shaft sleeve.

Optionally, the sleeve includes a protruding portion protruding from the outer wall, and the protruding portion extends into the tool holder.

Optionally, the tool apron comprises an inner sleeve-setting part and an outer sleeve-setting part, the inner sleeve-setting part is sleeved outside the shaft sleeve, the outer sleeve-setting part is sleeved outside the inner sleeve-setting part, and the temperature-resistant grade of the inner sleeve-setting part is higher than that of the outer sleeve-setting part. The inner sleeve part is directly contacted with the shaft sleeve, and the inner sleeve part with higher temperature resistance grade can avoid melting by heating. And because the part is established to the overcoat is heated less, sets up the temperature resistant grade that the part was established to the endotheca and is higher than the temperature resistant grade that the overcoat was established the part, can reduce material cost.

Optionally, the shaft sleeve is a metal shaft sleeve, and the shaft sleeve and the inner sleeve part are of an integrated structure. The integrated structure enables the tool apron and the bearing to be compact in structure and convenient to assemble with the stirring tool.

Optionally, the inner sleeve part and the outer sleeve part are of an integrated structure. The integral structure enables the cutter assembly to be compact in structure and good in processing manufacturability.

Optionally, the part was established to the endotheca surface is established to the corrugated surface, the overcoat is established the internal surface of part and is established the corrugated surface, the endotheca establish the partial concave surface with the partial convex surface joint is established to the overcoat, the partial convex surface is established to the endotheca with the partial concave surface joint is established to the overcoat. The concave-convex joint surface can increase the joint area and the joint strength of the inner sleeve part and the outer sleeve part.

Optionally, the outer sleeve portion includes a supporting portion, and the supporting portion is supported at the bottom of the inner sleeve portion. The supporting part plays a supporting role for the inner sleeving part and can limit the axial displacement of the inner sleeving part relative to the outer sleeving part.

A blender, comprising:

the cup assembly comprises a cup body and a cup seat arranged at the bottom of the cup body, and the cup body comprises a cutter mounting hole; and

the cutter assembly of any one of the above claims, wherein the cutter assembly is mounted in the cutter mounting hole and detachably connected with the cup holder through the cutter holder. The tool apron and the cup seat are simple in connection structure and convenient to realize.

Optionally, the cup body includes a stirring cavity, and the tool apron includes a flange protruding in a radial direction of the mounting hole, and the flange is located in the stirring cavity and is in sealing engagement with the bottom wall of the cup body. The sealing manner is simple and reliable.

Optionally, the tool holder includes an extension portion extending toward the cup holder, and the extension portion extends into the cup holder and is detachably connected to the cup holder. The extension part has simple structure, and is convenient for the tool apron to be connected with the cup seat.

The technical scheme provided by the application can at least achieve the following beneficial effects:

the application provides a cutter assembly and a stirrer, which comprise a cutter holder and a shaft sleeve arranged in a mounting hole of the cutter holder, wherein the shaft sleeve can be independently processed without being formed on a cup body in a drawing mode, so that the processing cost and the processing difficulty are reduced. The stirring machine comprises a cutter component which is detachably connected with the cup base, so that the cutter component is more convenient to assemble, disassemble and clean.

Drawings

FIG. 1 is a cross-sectional view of a blender shown in an exemplary embodiment of the present application;

FIG. 2 is an exploded view of the blender shown in FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is a cross-sectional view of the cutter assembly shown in FIG. 1;

FIG. 5 is an exploded view of the cutter assembly shown in FIG. 4;

FIG. 6 is an assembled cross-sectional view of the cup assembly and cutter assembly shown in FIG. 1;

fig. 7 is an exploded view of the cup assembly and cutter assembly shown in fig. 6.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and claims of this application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Similarly, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one, and if only "a" or "an" is denoted individually. "plurality" or "a number" means two or more. Unless otherwise specified, "front", "back", "lower" and/or "upper", "top", "bottom", and the like are for ease of description only and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

Referring to fig. 1 and 2, fig. 1 is a schematic view of a blender according to an exemplary embodiment of the present application. FIG. 2 is an exploded view of the blender of FIG. 1.

The blender 10 provided by the embodiments of the present application includes a base unit 11 and a cup assembly 12 assembled to the base unit 11. In one embodiment, the cup assembly 12 is removably assembled to the host 11.

The main body 11 includes a main body case 110, a motor 112 disposed in the main body case 110, a control circuit (not shown) electrically connected to the motor 112 for controlling a rotation speed of the motor 112, and the like. In one embodiment, the main housing 110 may have a control panel electrically connected to the control circuitry, the control panel providing for user input signals, and the control circuitry controlling the operation of the blender 10 in response to the user input signals.

In one embodiment, the main chassis 110 includes an upper chassis 110a and a lower chassis 110b, and the upper chassis 110a is detachably coupled with the lower chassis 110 b. The motor 112 may be fixedly coupled to the upper case 110a and the lower case 110b by a motor fixing bracket. A vibration-proof pad 111 is disposed between the motor 112 and the upper housing 110a for isolating vibration generated by the motor 112. A motor shaft 1120 of the motor 112 extends from the upper housing 110a, and a lower clutch 1122 is provided at a top end of the motor shaft 1120. The main housing 110 may further include a decorative ring 110c coupled to the upper housing 110a and the lower housing 110b, and the decorative ring 110c is disposed around the outer periphery of the upper housing 110a to improve the appearance of the blender 10. The bottom of the lower case 110b is provided with a foot pad 113 to buffer vibration and reduce noise.

The cup assembly 12 includes a cup body 120, an inner lid 122, and an outer lid 124. In one embodiment, the cup 120 and/or the inner lid 122 may be made of a stainless steel material, and the outer lid 124 may be made of a transparent material, but is not limited thereto. The cup 120 includes a stir chamber 120 a. The blender 10 further comprises a cutter assembly 13 assembled at the bottom of the cup body 120, the cutter assembly 13 comprises a blending cutter 130, an upper clutch 132 is mounted at the bottom end of a cutter shaft 131 of the blending cutter 130, the upper clutch 132 is engaged with a lower clutch 1122 to drive the blending cutter 130 to rotate in the blending cavity 120a, thereby blending and crushing the food material.

Referring to fig. 2, in one embodiment, the blender 10 includes a safety switch 15, the safety switch 15 can be triggered when the housing 124 covers the cup 120, such that the safety switch 15 is closed, and after the safety switch 15 is closed, the blender 10 starts to blend and pulverize the food material, otherwise, the blender 10 does not operate. During the whipping process, the cover 124 is pressed all the time so that the safety switch 15 is kept in a closed state, and when the whipping is finished, the cover 124 is released and the housing 124 is reset by the reset spring 16. The reset springs 16 can be provided with a plurality of groups, and the restoring force of the plurality of groups of reset springs 16 jointly acts on the shell 124, so that the shell 124 can be ensured to be reset stably.

Referring to fig. 3, fig. 3 is an enlarged view of a portion a in fig. 1.

Both the inner lid 122 and the outer lid 124 are fitted to the cup body 120. In one embodiment, the cup 120 includes a boss 120b protruding from an inner wall, an inner lid 122 is fitted over the boss 120b, and an outer lid 124 is fitted over the top of the cup 120. The structure is simple, and both the inner cover 122 and the outer cover 124 can be covered on the cup body 120. In one embodiment, the boss 120b may be integrally formed with the cup 120, such as by stamping or casting. In other embodiments, the boss 120b may be formed by mounting a support on the inner wall of the cup 120.

An outer cover 124 covers the outside of the cup 120 and the inner cover 122, and the outer cover 124 is sealingly engaged with the cup 120. When the blender 10 is in operation, if the inner lid 122 is not tightly covered with the cup body 120 or if the inner lid 122 is forgotten to be covered, the powder can be prevented from escaping through the sealing between the outer lid 124 and the cup body 120, and the sealing performance of the blender 10 is improved.

In one embodiment, the outer lid 124 and the cup 120 may be sealingly engaged by a labyrinth seal, for example, tortuous chambers may be provided between the outer lid 124 and the cup 120 to reduce escape of food powder to effect a seal. In this embodiment, the blender 10 includes an outer lid seal ring 14, the outer lid seal ring 14 being sandwiched between the outer lid 124 and the cup 120 to effect a sealing engagement of the outer lid 124 and the cup 120. The structure is simple, and the sealing performance is reliable. The outer lid sealing ring 14 may be an O-ring, but is not limited thereto.

The outer cover 124 may be provided with a receiving groove 124a, and the outer cover sealing ring 14 is installed in the receiving groove 124a, so that the outer cover sealing ring 14 can be positioned, the position stability of the outer cover sealing ring 14 can be improved, and the sealing reliability can be improved.

In one embodiment, the outer cap seal ring 14 or the outer cap 124 includes a stopper structure 140, and the outer cap seal ring 14 is in a circumferential and/or axial stopper fit with the outer cap 124 through the stopper structure 140 to ensure the firmness of the installation of the outer cap seal ring 14 in the receiving groove 124 a. In one embodiment, as shown in fig. 2, the outer cover sealing ring 14 includes a limiting notch, and correspondingly, the outer cover 124 may be provided with a limiting protrusion, which cooperates with the limiting notch to limit the outer cover sealing ring 14 to rotate in the receiving groove 124a on the one hand, and to limit the circumferential displacement of the outer cover sealing ring 14; on the other hand, the axial displacement of the outer cover sealing ring 14 can be limited through the size matching tolerance of the limiting protrusion and the limiting notch. The number of the limiting notches is not limited, and can be one or more. In other embodiments, it may be provided that the outer cover 124 includes a retaining structure, such as a retaining groove, and the outer cover seal ring 14 includes a retaining protrusion that mates with the retaining groove.

With continued reference to fig. 3, in one embodiment, the inner lid 122 contacts the outer lid 124 and is pressed under the outer lid 124, such that the inner lid 122 is kept horizontal and better covers the cup 120, thereby reducing the gap between the inner lid 122 and the cup 120 and preventing the powder from escaping due to the tilting of the inner lid 122. In the embodiment shown in fig. 3, the side wall 124aa of the receiving groove 124a extends downward and contacts the inner lid 122.

The cup 120 may also include a reinforced portion 120c, where the wall thickness of the cup 120 is greater than the wall thickness of the cup 120 at the remaining portions. Due to the increased wall thickness at the reinforced portion 120c, the strength of the cup 120 at the reinforced portion 120c is increased, and deformation or damage of the mouth of the cup 120 caused when the outer lid 124 is pressed down is avoided. In one embodiment, the reinforcement portion 120c and the cup body 120 are formed as an integral structure, which is simple in manufacturing process and low in manufacturing cost. In one embodiment, the reinforcement portion 120c includes a flange integrally formed at the mouth of the cup body 120, and the end of the flange extends toward the outer wall of the cup body 120. The outward flange can be formed by a stamping process, the processing process is simple and convenient, the reinforcing part 120c is simple in structure, and the processing cost is low. And, the end of the flanging extends towards the outer wall of the cup body 120, and the burr at the flanging position can be hidden, so that the user is prevented from being scratched by the burr when the cup is used. The flanging can be arranged to be of an arc structure, so that the service life of the outer cover sealing ring 14 is prolonged, the sharp corner of the opening of the cup body 120 can be avoided, and the use safety can be improved.

With continued reference to FIG. 3, the blender 10 further includes an inner lid sealing ring 18, the inner lid sealing ring 18 being sandwiched between the inner lid 122 and the inner wall of the cup 120. The inner lid seal ring 18 can seal the gap between the inner lid 122 and the cup body 120, thereby preventing the escape of the food powder and improving the sealing performance of the mixer 10.

Referring to fig. 4 and 5, fig. 4 is a cross-sectional view of the cutter assembly 13 shown in fig. 1. Fig. 5 is an exploded view of the knife assembly 13 of fig. 4.

The cutter assembly 13 includes a stirring cutter 130, a cutter holder 133 and a shaft sleeve 134, the cutter holder 133 is provided with a mounting hole 133a, the shaft sleeve 134 is arranged in the mounting hole 133a, and the axial direction of the shaft sleeve 134 is consistent with the axial direction of the mounting hole 133 a. In one embodiment, the bushing 134 is assembled in the mounting hole 133 a. In another embodiment, the shaft sleeve 134 is a metal shaft sleeve, and is injection-molded with the tool holder 133 to form an integrated structure, so that the tool holder 133 and the bearing 134 are compact and convenient to assemble with the stirring blade 130. The shaft 131 of the stirring knife 130 is rotatably inserted into the shaft sleeve 134, a sealing ring 135 and a bearing 136 are arranged in the shaft sleeve 134, and the shaft 131 penetrates through the sealing ring 135 and the bearing 136 and penetrates out of the upper end of the shaft sleeve 134. The cutter shaft 131 has a blade connected to an upper end thereof and a lower clutch 1122 connected to a lower end thereof. In the cutter assembly 13, the shaft sleeve 134 is formed on the cup body 120 without adopting a drawing process, and can be processed independently, so that the requirement on processing precision during the integral processing of the cup body 120 and the shaft sleeve 134 is reduced, and the processing difficulty and the processing cost are reduced.

In one embodiment, the sleeve 134 includes a protrusion 1340 protruding from the outer wall, and the protrusion 1340 protrudes into the holder 133, and the protrusion 1340 can increase the connection strength between the sleeve 134 and the holder 133, and can reduce the risk of the sleeve 134 being detached from the holder 133. The protrusion 1340 may be provided with a hole for plastic to flow into during injection molding, so as to increase the coupling force.

In one embodiment, the tool seat 133 includes an inner fitting portion 1330 and an outer fitting portion 1332, the inner fitting portion 1330 is fitted outside the shaft sleeve 134, and the outer fitting portion 1332 is fitted outside the inner fitting portion 1330, wherein the inner fitting portion 1330 has a higher temperature-resistant level than the outer fitting portion 1332. The stirring blade 130 generates friction heat during rotation and transfers the heat outwards through the shaft sleeve, and the inner sleeve part 1330 with higher temperature resistance level can avoid melting due to the direct contact between the inner sleeve part 1330 and the shaft sleeve 134. Moreover, since the outer sheath 1332 is heated less, the inner sheath 1330 is higher in temperature resistance than the outer sheath 1332, which can reduce the material cost. In one embodiment, the inner housing portion 1330 and the outer housing portion 1332 are formed as a single-piece structure by two-shot molding, thereby making the cutter assembly 13 compact and manufacturable.

In order to improve the bonding strength between the inner housing part 1330 and the outer housing part 13326, the outer surface of the inner housing part 1330 is provided with a concave-convex surface, the inner surface of the outer housing part 1332 is provided with a concave-convex surface, the concave surface of the inner housing part 1330 is bonded to the convex surface of the outer housing part 1332, and the convex surface of the inner housing part 1330 is bonded to the concave surface of the outer housing part 1332 to form a concave-convex bonding surface, thereby increasing the bonding area and bonding strength between the inner housing part 1330 and the outer housing part 13326.

The outer sleeve portion 1332 may further include a supporting portion 1332a, the supporting portion 1332a is supported at the bottom of the inner sleeve portion 1330, and the supporting portion 1332a supports the inner sleeve portion 1330 and can limit the axial displacement of the inner sleeve portion 1330 relative to the outer sleeve portion 13326.

The cutter assembly 13 further comprises a wear pad 137, wherein the wear pad 137 is disposed between the bearing 136 and the lower clutch 1122, and the wear pad 137 is disposed between the top of the sleeve 134 and the blade.

Referring to fig. 6 and 7, fig. 6 is an assembled cross-sectional view of cup 120 and cutter assembly 12. Fig. 7 shows an exploded view of the cup 120 and cutter assembly 13 of fig. 6.

Cup subassembly 12 is including setting up in cup 121 of cup 120 bottom, and cup 120 includes cutter mounting hole 120d, and cutter subassembly 13 installs in cutter mounting hole 120d, can dismantle with cup 121 through blade holder 133 and be connected, and this connected mode is convenient for cutter subassembly 13's dismouting and washing.

In one embodiment, the tool holder 133 includes an extension 1334 extending toward the cup holder 121, and the extension 1334 extends into the cup holder 121 to be detachably connected with the cup holder 121. In one embodiment, the extension 1334 is screwed to the cup holder 121. Specifically, the extension 1334 is provided with an internally threaded hole, the cup holder 121 is provided with a coupling hole coaxial with the internally threaded hole of the extension 1334, and the screw 30 is coupled to the internally threaded hole of the extension 1334 through the coupling hole of the cup holder 121. The number of the extension portions 1334 is not limited, and one or more may be provided. Of course, the extension 1334 and the cup holder 121 are not limited to screw connection, and other detachable connection methods such as snap connection and pin connection can be adopted. The extension 1334 may take a columnar structure.

The holder 133 further includes a flange 1336 projecting in the radial direction of the mounting hole 133a, the flange 1336 being located inside the mixing chamber 120a in sealing engagement with the bottom wall 120e of the cup body 120 in a simple and reliable manner. A seal ring 20 is provided between the flange 1336 and the bottom wall 120e of the cup 120. The flange 1336 may be formed with a positioning groove in which the packing 20 is assembled, thereby improving sealing reliability.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cutter assembly, comprising:

a holder (133) including a mounting hole (133 a);

a sleeve (134) disposed in the mounting hole (133a), the sleeve (134) being axially aligned with the mounting hole (133 a); and

the stirring knife (130) comprises a knife shaft (131), and the knife shaft (131) is rotatably inserted in the shaft sleeve (134).

2. The cutter assembly according to claim 1, wherein the sleeve (134) includes a protrusion (1340) protruding from the outer wall, the protrusion (1340) protruding into the seat (133).

3. The cutter assembly according to claim 1, wherein the cutter holder (133) comprises an inner sleeve portion (1330) and an outer sleeve portion (1332), the inner sleeve portion (1330) is sleeved outside the shaft sleeve (134), the outer sleeve portion (1332) is sleeved outside the inner sleeve portion (1330), and the temperature-resistant grade of the inner sleeve portion (1330) is higher than that of the outer sleeve portion (1332).

4. The cutter assembly according to claim 3, wherein the bushing (134) is a metal bushing and is provided as a one-piece construction with the inner sleeve portion (1330).

5. The cutter assembly according to claim 3, wherein the inner sleeve portion (1330) and the outer sleeve portion (1332) are of a unitary construction.

6. The cutter assembly according to claim 3, wherein an outer surface of the inner housing portion (1330) is provided with a concave-convex surface, an inner surface of the outer housing portion (1332) is provided with a concave-convex surface, a concave surface of the inner housing portion (1330) is engaged with a convex surface of the outer housing portion (1332), and a convex surface of the inner housing portion (1330) is engaged with a concave surface of the outer housing portion (1332).

7. The cutter assembly according to claim 3, wherein the outer sleeve portion (1332) includes a support portion (1332a), the support portion (1332a) being supported at a bottom of the inner sleeve portion (1330).

8. A blender, comprising:

the cup assembly (12) comprises a cup body (120) and a cup seat (121) arranged at the bottom of the cup body (120), wherein the cup body (120) comprises a cutter mounting hole (120 d); and

the cutter assembly (13) as set forth in any one of claims 1 to 7, said cutter assembly (13) being mounted in said cutter mounting hole (120d) for removable connection with said cup holder (121) through said cutter seat (133).

9. A mixer according to claim 8, wherein the cup (120) includes a mixing chamber (120a), and wherein the seat (133) includes a flange (1336) projecting radially of the mounting aperture (133a), the flange (1336) being located within the mixing chamber (120a) in sealing engagement with the base wall (120e) of the cup (120).

10. A blender as claimed in claim 8 or 9, wherein said blade holder (133) comprises an extension (1334) extending towards said cup holder (121), said extension (1334) extending into said cup holder (121) for detachable connection with said cup holder (121).