CN211380974U - Coupling assembly and food processor - Google Patents

Abstract

The utility model discloses a coupling assembly and a food processor, wherein, the coupling assembly comprises a main body component, a first connector and a second connector; the first connecting head is connected to one end of the main body component and is at least partially accommodated in the main body component; the second connector is connected to the other end of the elastic part and is at least partially accommodated in the main body part. The utility model discloses technical scheme's shaft coupling subassembly can reduce the noise of food processor operation in-process.

Description

Coupling assembly and food processor

Technical Field

The utility model relates to a life electrical apparatus technical field, in particular to coupling subassembly and food processor who uses this coupling subassembly.

Background

In the food processor in the related art, especially in the case that the food processor is detachably divided into a stirring cup assembly and a base assembly, the cutter shaft of the stirring cup assembly is generally connected with the motor output shaft of the base assembly through a coupling assembly, however, the coupling assembly of the food processor cannot absorb and buffer the vibration of the cutter shaft and the output shaft, which results in great noise in the operation process.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a coupling subassembly aims at reducing the noise of food processor operation in-process.

In order to achieve the above object, the utility model provides a coupling assembly, include:

the main body component is made of elastic materials;

the first connecting head is connected to one end of the main body component and is at least partially accommodated in the main body component; and

and the second connector is connected to the other end of the elastic part and at least partially accommodated in the main body part.

Optionally, a distance is formed between the second connector and the first connector, and the distance between the second connector and the first connector is defined as X, wherein X is larger than or equal to 2 mm.

Optionally, a through mounting hole is formed in the main body part, at least a part of the first connector is fixedly connected to one end of the mounting hole, and at least a part of the second connector is fixedly connected to the other end of the mounting hole.

Optionally, the first connector is at least partially injection molded in the mounting hole;

and/or, the second connector is at least partially injection-molded in the mounting hole.

Optionally, a stop structure is arranged around a surface of the first connecting head, which is attached to the main body component;

and/or a stopping structure is arranged on the surface, attached to the main body component, of the second connector in a surrounding manner.

Optionally, the stop formation is a raised formation.

Optionally, the main body part is a rubber part or a silica gel part;

and/or the first connector and the second connector are metal pieces.

The utility model also provides a food processor, include:

a stand assembly including a drive motor having an output shaft;

the stirring cup assembly is arranged on the base assembly and comprises a cutter assembly, and the cutter assembly is provided with a cutter shaft; and

according to the coupler assembly, the first connector of the coupler assembly is connected with the cutter shaft, and the second connector of the coupler assembly is connected with the output shaft.

Optionally, a one-way bearing is further arranged in the first connector or the second connector, and the cutter shaft or the output shaft is detachably inserted into the one-way bearing.

Optionally, one end of the cutter shaft or the output shaft is provided with a guiding section and a matching section in sequence, and the matching section is guided by the guiding section to be inserted and matched in the one-way bearing.

Optionally, the length of the guide section is defined as L1, and L1 is more than or equal to 2 mm;

and/or the length of the matching section is defined as L2, and L2 is more than or equal to 2 mm.

The technical proposal of the utility model is that the first connector and the second connector in the shaft coupling component are respectively connected with the two ends of the main body component, and at least part of the first connector and the second connector are accommodated in the main body component, because the elastic potential energy of the main body component has the torsion recovery capability, the main body component absorbs or eliminates part of vibration energy generated by rotation during the driving operation process of the output shaft by connecting the cutter shaft of the stirring cup component in the food processor to the first connector and connecting the driving motor output shaft of the base component to the second connector, thereby greatly reducing the noise during the operation process of the food processor, simultaneously, because of the torsion recovery capability of the main body component, the eccentric amount can be automatically adjusted after the cutter shaft and the output shaft are connected with the shaft coupling component, avoid appearing the phenomenon that arbor and output shaft are not centering, guaranteed the stability of food processor operation process.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the food processor of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic view of an installation structure of an embodiment of the coupling assembly of the present invention;

fig. 4 is a schematic view of an installation structure of another embodiment of the coupling assembly of the present invention;

fig. 5 is a schematic structural diagram of an embodiment of the coupling assembly of the present invention;

fig. 6 is an exploded schematic view of the coupling assembly and the one-way bearing according to the present invention;

fig. 7 is a schematic cross-sectional view of the coupling assembly of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Engine base assembly	110	Driving motor
111	Output shaft	200	Stirring cup assembly
				210	Cup holder	220	Cup body
230	Cutter assembly	231	Cutter shaft
				2311	Guide section	2312	Mating segment
300	Coupling assembly	310	Main body part
				311	Mounting hole	320	First connector
321	First driving hole	330	Second connector
				331	Second driving hole	300a	Stop structure
400	One-way bearing	1000	Food processor

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a coupling subassembly 300 and applied this coupling subassembly 300's food processor 1000.

Referring to fig. 1, fig. 2, fig. 5 and fig. 6, in an embodiment of the present invention, the food processor 1000 includes a base assembly 100, a stirring cup assembly 200, and a coupling assembly 300, wherein the base assembly 100 includes a housing, a driving motor 110 disposed in the housing, and a control circuit board (not labeled), wherein the driving motor 110 is mounted and fixed on a motor bracket (not labeled), and the motor bracket is fixedly connected to the housing; the driving motor 110 has an output shaft 111, and the output shaft 111 extends out of the casing; the stirring cup assembly 200 is mounted on the base assembly 100, the stirring cup assembly 200 comprises a cup base 210, a cup body 220 screwed with the cup base 210 to be detachably connected, and a cutter assembly 230 mounted on the cup base 210, the cup base 210 is erected at the upper end of a machine shell of the base, a cutter head is fixed in the cup base 210 in a sealing manner, the cutter assembly 230 is mounted on the cutter head, and the cutter assembly 230 is provided with a cutter shaft 231; the coupling assembly 300 includes a body member 310, a first connector 320 connected to the knife shaft 231, and a second connector 330 connected to the output shaft 111 of the driving motor 110, wherein the body member 310 is made of an elastic material, the first connector 320 is connected to one end of the body member 310 and at least partially accommodated in the body member 310, and the second connector 330 is connected to the other end of the elastic member and at least partially accommodated in the body member 310.

The application of the food processor 1000 can be a broken wall machine, a soybean milk machine, a juice extractor, a blender, a noodle maker and other household electrical appliances. In the coupling assembly 300, since the main body member 310 has a certain elasticity, the coupling assembly 300 can absorb energy and buffer the food processor 1000 during operation after connecting the cutter shaft 231 and the output shaft 111. In one embodiment, the main body 310 is a rubber or silicone member; and/or, the first connector 320 and the second connector 330 are metal parts, so that the main body 310 can absorb vibration energy and adjust the eccentricity by itself by means of elasticity, and the first connector 320 and the second connector 330 are rigid parts and are fixedly connected with the rigid knife shaft 231 and the output shaft 111, thereby ensuring the stability of operation after connection. The first connector 320, the second connector 330 and the main body 310 may be an integral structure, or they may be separate structures, but they are fixedly connected together. In the embodiment of the present application, the first connector 320 is provided with a first transmission hole 321, and one end of the cutter shaft 231 is inserted and fixed in the first transmission hole 321; the second connector 330 is provided with a second transmission hole 331, and one end of the output shaft 111 is inserted and fixed in the second transmission hole 331, however, threaded holes may be simultaneously provided in the second connector 330 and the output shaft 111 of the driving motor 110, and the second connector 330 and the output shaft 111 are fixed by screw connection.

The body member 310 may be configured in a variety of shapes, such as cylindrical, prismatic, or other reasonable and effective shapes; the first connector 320 and the second connector 330 may also be designed in various shapes such as a cylinder, a square column, etc. It should be noted that, in the present application, the first connecting head 320 and the second connecting head 330 may be respectively located at two ends of the main body component 310 in the extending direction, and there is no direct connection relationship between the first connecting head 320 and the second connecting head 330, but the first connecting head 320 and the second connecting head 330 are transitionally connected through the main body component 310, so that, during the operation of the food processor 1000, when the output shaft 111 of the driving motor 110 rotates, the output shaft is sequentially transmitted to the knife shaft 231 through the second connecting head 330, the main body component 310 and the first connecting head 320, and the main body component 310 absorbs and eliminates the vibration during the transmission process, thereby buffering, damping, reducing noise, recovering the distortion, adjusting the eccentricity, and ensuring that the knife shaft 231 and the output shaft.

The technical solution of the present invention is that the first connector 320 and the second connector 330 of the coupling assembly 300 are respectively connected to two ends of the main body 310, and the first connector 320 and the second connector 330 are at least partially accommodated in the main body 310, and the main body 310 has torsional recovery capability due to elastic energy, so that in the operation process of the food processor 1000 with the coupling assembly 300 of the present invention, the main body 310 absorbs or eliminates part of vibration energy generated by rotation by connecting the cutter shaft 231 of the stirring cup assembly 200 of the food processor 1000 to the first connector 320 and connecting the output shaft 111 of the driving motor 110 of the base assembly 100 to the second connector 330, so that in the driving operation process of the output shaft 111, the main body 310 absorbs or eliminates part of vibration energy generated by rotation, thereby greatly reducing noise in the operation process of the food processor 1000, and simultaneously due to torsional recovery capability of the main body 310, the eccentric amount can be adjusted by oneself after making arbor 231 and output shaft 111 be connected with shaft coupling subassembly 300, avoids appearing the phenomenon that arbor 231 and output shaft 111 are not centering, has guaranteed the stability of food processor 1000 operation process.

Referring to fig. 7, in an embodiment of the present application, a distance is formed between the second connector 330 and the first connector 320, which defines a distance X between the second connector 330 and the first connector 320, where X is greater than or equal to 2 mm. Through the set distance X, the second connector 330 transmits the rotation power to the first connector 320, and a flexible transition connection is required through the main body 310, so that vibration energy is absorbed and eliminated by the main body 310, and noise is reduced. In this application, interval X should be not less than 2mm, if interval X undersize, the transition length in the elastic transmission frame between first connector 320 and the second connector 330 is the less, the shaft coupling subassembly 300 that forms this moment tends to rigidity more, when carrying out the rotation power transmission, can not absorb and eliminate the vibration energy to the noise that makes food processor 1000 operation process send is great, consequently, the interval between second connector 330 and the first connector 320 is designed at the within range that is not less than 2mm for X in this application. In practical applications, the specific value of the distance X may be 2mm, 3mm, 4mm, or larger.

In order to facilitate the fixing and forming of the first connector 320, the second connector 330 and the body member 310, referring to fig. 6 and fig. 7, in an embodiment of the present application, a through mounting hole 311 is formed in the body member 310, at least a portion of the first connector 320 is fixedly connected to one end of the mounting hole 311, and at least a portion of the second connector 330 is fixedly connected to the other end of the mounting hole 311. The mounting hole 311 can form a matched circular stepped hole according to the overall dimensions of the first connector 320 and the second connector 330, so that the processing and manufacturing are convenient, the structural design is easy, and the production cost is reduced.

Further, referring to fig. 7, the aperture D3 of the installation hole 311 is larger than the aperture D2 of the second transmission hole 331, and the aperture D2 of the second transmission hole 331 is smaller than the aperture D1 of the first transmission hole 321, so that when the rotation motion is transmitted from the output shaft 111 to the cutter shaft 231, the vibration energy is gradually reduced, thereby reducing the risk of cup jumping of the stirring cup assembly 200.

In an embodiment of the present application, the first connection head 320 is at least partially injection-molded in the mounting hole 311; and/or the second connector 330 is at least partially injection-molded in the mounting hole 311. In an embodiment, the first connector 320 and the second connector 330 are partially located in the mounting hole 311 and partially located outside the mounting hole 311, and in this embodiment, in order to facilitate the demolding of the injection mold, a step is formed around the outer side wall of the body member 310. Through with the first connector 320, the partial injection moulding of second connector 330 in mounting hole 311 for first connector 320, second connector 330 and main part 310 fixed connection become integrative, ensure the stability of food processor 1000 operation process, it is also comparatively convenient to process manufacturing process simultaneously, has improved production efficiency.

Generally, after a long time when the first connector 320 and the second connector 330 transmit the rotation motion through the body 310, the connection between the first connector 320 or the second connector 330 and the body 310 is prone to fail due to fatigue. In order to ensure the tight connection between the first connector 320, the second connector 330 and the body 310, the surface of the first connector 320, which is attached to the body 310, is surrounded by the stopper 300 a; and/or the surface of the second connecting head 330, which is attached to the body part 310, is provided with a stop structure 300a around.

As shown in FIG. 6, in one embodiment, the stop structure 300a is a raised structure. In this embodiment, the first connector 320 and the second connector 330 are partially injection molded in the mounting hole 311, and the plurality of protruding structures are disposed around the mounting hole, and an injection molding space is formed between two adjacent protruding structures, when injection molding is performed, plastic can be filled in the injection molding space, so that the injection molding area between the plastic and the main body component 310 is increased, and the connection between the first connector 320 and/or the second connector 330 and the main body component 310 is more stable and firm.

Of course, in other embodiments, the stopping structure 300a may also be an adhesive layer disposed around the outer side wall of the first connector 320 and/or the second connector 330, so that the first connector 320, the second connector 330 and the body 310 have additional adhesive force during the connection and fixation, and are more stable after being installed.

Referring to fig. 3 and 4, in the food processor 1000 of the present application, in order to enable the knife shaft 231 and the coupling assembly 300 to be tightly held during operation and reduce the cup skipping phenomenon, the first connector 320 or the second connector 330 is further provided with a one-way bearing 400 therein, and the knife shaft 231 or the output shaft 111 is detachably inserted into the one-way bearing 400. Due to the one-way bearing 400, when the driving motor 110 operates, the output shaft 111 can be clasped with the knife shaft 231 through the one-way bearing 400 fixed in the first connecting head 320, so as to drive the knife shaft 231 to rotate and stir the food in the cup body 220; when the driving motor 110 stops operating, the knife shaft 231 is not tightly held with the one-way bearing 400, and the knife shaft 231 can be easily detached from the one-way bearing 400 in the first connector 320, so as to lift the stirring cup assembly 200 to pour out the food.

It should be noted that the coupling assembly 300 of the present invention may be fixedly connected to the upper end of the output shaft 111, or may be fixedly connected to the lower end of the cutter shaft 231. When the coupling assembly 300 is fixedly connected to the upper end of the output shaft 111, that is, the second connector 330 is fixedly connected to the output shaft 111, as shown in fig. 3, the lower end of the cutter shaft 231 is detachably connected to the coupling assembly 300, and the one-way bearing 400 is disposed in the first connector 320 for tightly embracing and operating with the cutter shaft 231; when the coupling assembly 300 is fixedly connected to the lower end of the knife shaft 231, that is, the first connector 230 is fixedly connected to the knife shaft 231, as shown in fig. 4, the upper end of the output shaft 111 is detachably connected to the coupling assembly 300, and the one-way bearing 400 is disposed in the second connector 330 for tightly embracing the output shaft 111 to operate.

Further, one end of the cutter shaft 231 or the output shaft 111 of the present application is sequentially provided with a guiding section 2311 and a mating section 2312, and the mating section 2312 is guided by the guiding section 2311 to be inserted and fitted into the one-way bearing 400. It can be understood that when the one-way bearing 400 is disposed in the first coupling head 320, the lower end of the cutter shaft 231 is provided with a guide section 2311 and a mating section 2312; when the one-way bearing 400 is disposed on the second connector 330, the upper end of the output shaft 111 is disposed with a guiding section 2311 and a matching section 2312. In practical application, when the knife shaft 231 or the output shaft 111 is matched with the one-way bearing 400, the guide section 2311 is inserted into the one-way bearing 400 firstly, and then the matching section 2312 is fixed with the one-way bearing 400, in the mode, the one-way bearing 400 is connected with the knife shaft 231 or the output shaft 111 easily in an aligned mode, and the installation process is more convenient.

Further, the length of the guide section 2311 is defined as L1, and L1 is more than or equal to 2 mm; and/or, the length of the matching section 2312 is defined as L2, and L2 is more than or equal to 2 mm. In this embodiment, the lengths of the guiding segment 2311 and the engaging segment 2312 should be not less than 2mm, and if the length of the guiding segment 2311 is too small, the engaging segment 2312 cannot be correctly guided to engage with the one-way bearing 400; if the length of the engaging section 2312 is too small, the effective length of the connection between the arbor 231 and the one-way bearing 400 is also small, so that the arbor 231 or the output shaft 111 is not stably engaged with the one-way bearing 400, and therefore the length of the guiding section 2311 and the engaging section 2312 is designed to be not less than 2 mm.

It will be appreciated that in practice, the length L1 of the guiding section 2311 may be 2mm, 3mm, 4mm, or more; the length L2 of the mating segment 2312 may also be 2mm, 3mm, 4mm, or greater.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (11)

1. A coupling assembly, comprising:

the main body component is made of elastic materials;

the first connecting head is connected to one end of the main body component and is at least partially accommodated in the main body component; and

and the second connector is connected to the other end of the main body component and is at least partially accommodated in the main body component.

2. The coupling assembly of claim 1 wherein the second joint is spaced from the first joint by a distance X, X ≧ 2 mm.

3. The coupling assembly of claim 1, wherein a mounting hole is defined through the body member, the first connector is at least partially fixedly connected to one end of the mounting hole, and the second connector is at least partially fixedly connected to the other end of the mounting hole.

4. The coupling assembly of claim 3 wherein said first coupling head is at least partially injection molded into said mounting bore;

and/or, the second connector is at least partially injection-molded in the mounting hole.

5. The coupling assembly of claim 1 wherein said first connector abuts said body member with a surface thereof having a detent arrangement therearound;

and/or a stopping structure is arranged on the surface, attached to the main body component, of the second connector in a surrounding manner.

6. The coupling assembly of claim 5 wherein said stop structure is a raised structure.

7. A coupling assembly according to any one of claims 1 to 6, wherein the body member is a rubber or silicone member;

and/or the first connector and the second connector are metal pieces.

8. A food processor, comprising:

a stand assembly including a drive motor having an output shaft;

the stirring cup assembly is arranged on the base assembly and comprises a cutter assembly, and the cutter assembly is provided with a cutter shaft; and

the coupling assembly according to any one of claims 1 to 7, wherein a first connector of the coupling assembly is connected to the arbor, and a second connector of the coupling assembly is connected to the output shaft.

9. The food processor as claimed in claim 8, wherein a one-way bearing is further arranged in the first connector or the second connector, and the knife shaft or the output shaft is detachably inserted into the one-way bearing.

10. The food processor as claimed in claim 9, wherein one end of the knife shaft or the output shaft is provided with a guiding section and a matching section in sequence, and the matching section is inserted and matched in the one-way bearing through the guiding section.

11. The food processor of claim 10, wherein the length of the guide section is defined as L1, L1 ≥ 2 mm;

and/or the length of the matching section is defined as L2, and L2 is more than or equal to 2 mm.

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