CN215687176U - Dough mixing machine reliable in installation - Google Patents

Abstract

The utility model discloses a dough mixer with reliable installation, which comprises a machine base internally provided with a power assembly, wherein the machine base comprises a top cover matched with the power assembly, the power assembly comprises a motor, a turbine and a worm which are positioned at the output end of the motor, the dough mixer also comprises a motor installation support fixedly connected with the motor, the turbine and the worm, the top cover is provided with a first positioning structure, the upper surface of the motor installation support is provided with a second positioning structure formed by extending towards the top cover, a first fixing piece used for axially fixing the first positioning structure and the second positioning structure is also arranged in the machine base, when the motor installation support and the top cover are installed in place, the first positioning structure and the second positioning structure are mutually spliced to form an overlapping part which is axially overlapped, the height ratio of the overlapping part to the second positioning structure is L, and L is not less than 0.15 and not more than 0.6. This scheme has optimized the fixed reliability of power component with the frame, guarantees power component's job stabilization nature, promotes the life-span of flour-mixing machine.

Description

Dough mixing machine reliable in installation

Technical Field

The utility model relates to the field of household food processing, in particular to a dough mixing machine with reliable installation.

Background

The dough kneading machine is used as a convenient and healthy electric appliance for making cooked wheaten food, and has entered more and more families, so that convenience is brought to the life of people. A typical dough mixer includes a base with a power assembly disposed therein and a dough mixing cup disposed on the base. And a stirring knife in transmission connection with the power assembly is arranged in the dough kneading cup, and the stirring knife stirs flour and water under the action of power until dough is formed.

In order to simplify the technology of power component and frame assembly, there is application number CN 202021274849.5's patent to disclose a flour-mixing machine of easily assembling, set up bearing structure and set up location structure at the drain pan of frame and realize fixing drive assembly at the upper cover, location structure is the reference column, be equipped with on the support of fixed worm gear with reference column complex locating hole, bearing structure is for being located the annular brace rod on the drain pan, and the support still includes the linking arm with annular brace rod butt, and drive assembly includes the motor. That is to say, this kind of fixed mode makes between drive assembly and the upper cover realize radial positioning only through the locating hole cooperation on reference column and the support, and axial fixed leans on the upper cover completely and the drain pan cooperation targets in place, and reference column and support butt and annular brace rod and linking arm complete butt just can realize. This makes the fixing type less reliable for fixing the drive unit with the screw as described above. In addition, because the positioning column is formed by extending from the bottom surface of the upper cover to the inside of the machine base, the positioning column has weak strength and is easy to break, so that the power assembly and the upper cover are fixed and fail. The top surface of the actual annular supporting rib is difficult to align to the connecting arm to realize butt joint, the assembling difficulty is increased, and axial fixing failure is easily caused.

In addition, in order to ensure the operation stability of the power assembly and reduce the vibration or shaking of the power assembly, the power assembly and the base must be reliably fixed. For this reason, there is a patent with application number 201821271773.3 that discloses a dough mixer, which is characterized in that a plurality of sets of screw fixing structures are arranged on the upper cover of the base to fix the power assembly on the upper cover, specifically, the transmission device further comprises a turntable shell which covers the output shaft of the motor and the turntable, the turntable shell is provided with a plurality of fixing holes, and the turntable shell is fixed on the lower side surface of the upper cover by screws penetrating through the fixing holes. However, only the screws penetrate through the fixing holes to fix the power assembly and the upper cover, only axial and radial limitation is realized, no circumferential limitation exists, the power assembly is easy to shake along the circumferential direction when the output shaft runs, the power assembly can wholly swing or shake along the circumferential direction, and therefore the risk of damaging the power assembly is avoided.

To sum up, how to further optimize the fixing reliability of the power assembly and the base in the circumferential direction, the axial direction and the radial direction, and further simplify the assembly process under the premise to ensure the stability of the power assembly in operation, reduce the risk of damaging the power assembly, and improve the service life of the dough mixer, which is a problem to be solved urgently.

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 further optimize the fixing reliability of the power assembly and the base in the circumferential direction, the axial direction and the radial direction, and further simplify the assembly process on the premise of the reliability, so as to ensure the stability of the power assembly in operation, reduce the risk of damaging the power assembly and prolong the service life of the dough mixer.

In order to achieve the purpose, the utility model adopts the following technical scheme: a dough kneading machine with reliable installation comprises a machine base internally provided with a power assembly, the machine base comprises a top cover matched with the power assembly, the power component comprises a motor, a worm wheel and a worm which are positioned at the output end of the motor, the dough kneading machine also comprises a motor mounting bracket which is fixedly connected with the motor, the worm wheel and the worm, the top cover is provided with a first positioning structure, the upper surface of the motor mounting bracket is provided with a second positioning structure extending towards the top cover, the machine base is also internally provided with a first fixing piece used for axially fixing the first positioning structure and the second positioning structure, when the motor mounting bracket and the top cover are mounted in place, the first positioning structure and the second positioning structure are mutually inserted to form an overlapping part which is overlapped along the axial direction, the height ratio of the overlapping part to the second positioning structure is L, and L is more than or equal to 0.15 and less than or equal to 0.6.

Preferably, first mounting is vertical to be inserted first location structure and second location structure to the realization is fastened to axial, circumference of first location structure and second location structure when first location structure and second location structure fix to the target in place, first location structure and second location structure constitute jointly and are used for holding the through-hole of first mounting, the through-hole runs through first location structure, second location structure and top cap, just the through-hole includes the follow the upper surface of top cap is the upper through-hole of internal recess, the upper through-hole is used for holding the head of first mounting, just the upper surface of head is less than or equal to the upper surface of top cap.

Preferably, the first fixing piece transversely penetrates through the overlapping part to realize axial fixing of the first positioning structure and the second positioning structure; or the first fixing piece avoids the arrangement of the first positioning structure and the second positioning structure, and the first fixing piece penetrates through the edge of the motor mounting bracket and the top cover to axially fix the first positioning structure and the second positioning structure.

Preferably, either one of the first positioning structure and the second positioning structure is provided with a limit plate which is axially abutted against an end face of the overlapping portion.

Preferably, the limiting plate is the follow the ring structure that the inside wall of first location structure extends the formation to the center pin of first location structure, the lower surface of ring structure is used for the axial butt the second location structure, just the inside and outside ring radius difference of ring structure with the wall thickness of second location structure equals.

Preferably, first location structure is for following the lower surface of top cap is towards the inside reference column structure that extends of frame, the lateral wall of reference column structure forms one-level step at least, the reference column structure is close to the radial size of top cap more big more, and the radial thickness of arbitrary step all is greater than second location structure's wall thickness.

Preferably, the power component further comprises a front end cover fixed at the output end of the motor, the motor mounting bracket extends from the end face of the front end cover towards the output direction of the worm and partially covers the turbine and the worm, the motor mounting bracket and the front end cover are integrally formed, when the motor mounting bracket and the top cover are fixed in place, the vertical distance between the upper surface of the motor mounting bracket and the lower surface of the top cover is less than or equal to the height of the upper surface of the motor mounting bracket, which is protruded out of the second positioning structure.

Preferably, the motor mounting bracket is provided with a second drive shaft hole for the drive shaft on the turbine to pass through and a second bearing seat for forming the second drive shaft hole, a reinforcing rib is connected between the second positioning structure and the second bearing seat, and the reinforcing rib is flush with the second bearing seat.

Preferably, the lower surface of the top cover is provided with a first drive shaft hole for a drive shaft on a turbine to pass through and a first bearing seat forming the first drive shaft hole, the first positioning structures are uniformly distributed along the side wall of the first bearing seat, a rotation stopping groove containing a rotation stopping rib is arranged at the intersection of the first positioning structures and the first bearing seat, and the rotation stopping groove is clamped with the reinforcing rib through the rotation stopping rib so as to realize circumferential limit of the motor mounting bracket; or a vertical trimming structure is arranged on the side wall of the second bearing seat, a matching hole clamped with the trimming structure is formed in the first bearing seat, and the trimming structure and the matching hole are clamped to realize circumferential limitation on the motor mounting bracket.

Preferably, a mounting piece is arranged on the shell of the motor and is used for being matched with the top cover to hoist the motor; or the casing of motor is equipped with from down up the parcel outside the casing the installation accessory of casing, be equipped with the installation piece on the installation accessory, the installation piece be used for with the top cap cooperation realizes the hoist and mount to the motor.

The above technical scheme of this application has following beneficial effect:

1. in this application, in order to guarantee the axial fixity's of first location structure and second location structure reliability, set up first location structure on the top cap the upper surface of motor installing support sets up the second location structure that extends to the top cap direction, still be equipped with in the frame and be used for the first mounting to first location structure and second location structure axial fixity. That is, the first fixing piece can be positioned on the bottom cover of the machine base to support the power assembly so as to axially fix the first positioning structure and the second positioning structure; or the first fixing piece can be inserted into the first positioning structure and the second positioning structure to axially fix the first positioning structure and the second positioning structure.

Further, when being fixed in the top cap for guaranteeing motor installing support, have reliable radial fixation, effectively reduce power component and rock in the horizontal direction, set up in this scheme first location structure and second location structure fasten when targetting in place, first location structure and second location structure peg graft each other and form overlap portion along axial overlap. The existence of overlap portion explains that first location structure inserts in the second location structure, perhaps the second location structure inserts in first location structure, and whichever all relies on first location structure to realize radial spacing and radial fixed to second location structure. That is to say, first location structure has also realized motor installing support together with power component's radial spacing, prevents that power component from radially rocking or shaking in the course of the work. In addition, the first positioning structure and the second positioning structure are only required to be mutually inserted in a relative inserting mode, and the assembling process is simple.

In addition, the height ratio of the overlapping part to the second positioning structure is set to be L, L is more than or equal to 0.15 and less than or equal to 0.6, and the range of L indicates that the overlapping part has a certain distance in the axial direction, so that the reliability of radial limiting is ensured. On one hand, the phenomena that the first positioning structure and the second positioning structure slip off and are difficult to align due to the fact that the overlapped part is too small can be prevented; on the other hand, it is possible to prevent the occurrence of a problem that the material cost of the first positioning structure and the second positioning structure is increased due to an excessively large overlapping portion.

The radial spacing of the overlapped part and the axial spacing of the first fixing piece realize that the motor mounting bracket, the power assembly and the top cover are both fixed in the axial direction and the radial direction and are reliable, and the shaking of the motor mounting bracket and the power assembly in the working process is greatly reduced. In addition, only need to peg graft first location structure and second location structure each other, axial fixity is realized to the first mounting of rethread, and this kind of assembly process is simple, convenient, reliable, can also guarantee the stability of power component in the function, reduces the risk of haring power component, promotes flour-mixing machine's life.

2. Through setting up the vertical interpolation of first mounting first location structure and second location structure have realized the axial, circumference fastening to first location structure and second location structure. That is to say, under the prerequisite that original first mounting played the axial fixity, still further insert first location structure and second location structure through first mounting and tightly fix both together to realize the axial fixed. In this technical scheme, still in order to guarantee that a first mounting can once only pass first location structure, second location structure and realize fixing both, set up first location structure and second location structure when fastening in place, both constitute jointly and are used for holding the through-hole of first mounting, the through-hole runs through first location structure, second location structure and top cap.

Furthermore, the through hole is formed to comprise an upper through hole which is recessed inwards from the upper surface of the top cover, and the upper through hole is used for axially limiting the first fixing piece, so that the first fixing piece can be inserted into the through hole when being fastened. The upper surface of the first fixing part is lower than or equal to the upper surface of the top cover, so that the first fixing part is prevented from being exposed out of the upper surface of the top cover and being directly contacted by a user, and the first fixing part is prevented from being abraded.

3. If first mounting is vertical when realizing the fastening to first location structure and second location structure, does not shelter from the apron of first location structure and first mounting, then first mounting can expose in the upper surface of top cap influences the aesthetic property of frame, still can have the risk of electric leakage to exist. Therefore, in the scheme, the first fixing piece transversely penetrates through the overlapping part, so that the first positioning structure and the second positioning structure are axially fixed;

it can be understood that, during axial fastening, the larger the horizontal range that first mounting encloses, the more stable the fixing to power component, consequently in order to further improve the stability that power component is fixed in on the top cap, reduce and rock, set up first mounting avoids first location structure and second location structure, just first mounting passes motor installing support and is close to the plane and the top cap at edge, realizes the axial fixity to first location structure and second location structure.

4. Except that the axial fixity through first mounting realization first location structure and second location structure, in order to further improve the spacing reliability of first location structure and second location structure axial, set up first location structure and second location structure both arbitrary one be equipped with the terminal surface of overlap portion forms the limiting plate of axial butt, realize the axial between first location structure and the second location structure spacing through limiting plate and overlap portion axial butt. As can be appreciated, when the second positioning structure is inserted into the first positioning structure to form the overlapping portion, a limiting plate is arranged in the first positioning structure, the limiting plate is positioned above the overlapping portion, and a lower end surface of the limiting plate axially abuts against an upper end surface of the overlapping portion; or when the first positioning structure is inserted into the second positioning structure to form an overlapped part, a limiting plate is arranged in the second positioning structure, the limiting plate is positioned below the overlapped part, and the upper end face of the limiting plate is axially abutted to the lower end face of the overlapped part.

5. In order to guarantee the axial limiting reliability of the first positioning structure and the second positioning structure and save materials, the limiting plate is arranged to be driven, the inner side wall of the first positioning structure extends to form a circular ring structure towards the central shaft of the first positioning structure, and the lower surface of the circular ring structure is axially abutted to the second positioning structure. That is, the scheme is that the second positioning structure is inserted into the first positioning structure. Then, in addition to the axial fixation of the first fixing member, after the second positioning structure is inserted into the first positioning structure, the lower surface of the annular structure is abutted against the upper surface of the second positioning structure, so as to axially limit the second positioning structure. Further, set up the inside and outside ring radius difference of ring structure with second location structure's wall thickness equals, and the aperture of through-hole is unanimous from the upper surface of ring structure towards the through-hole internal diameter of the lower terminal surface direction of second location structure promptly for the first mounting of butt can be jointly held to ring structure and second location structure's interior hole wall, to the radial butt of first mounting, realizes the radial limiting displacement to first mounting.

6. Because the thickness of the top cover is thinner, in order to reduce the cost of the top cover, the first positioning structure is made into a positioning column structure extending from the lower surface of the top cover to the inside of the machine base. And in order to guarantee the firmness of the positioning column structure and the top cover in an integrated manner, the power assembly is prevented from being too heavy, so that the joint of the positioning column and the top cover is cracked, the outer side wall of the positioning column structure at least forms a first-level step, and the radial size of the positioning column structure is larger when the positioning column structure is closer to the top cover. Furthermore, in order to ensure that the first positioning structure has enough strength to the second positioning structure to realize radial limiting, the radial thickness of any step is greater than the wall thickness of the second positioning structure.

7. The motor mounting bracket partially covering the turbine and the worm is formed by extending from the end face of the front end cover to the output direction of the worm, so that the whole power assembly is an open power assembly, and heat flow generated by the operation of the motor in the scheme can not be gathered in a closed space of the motor mounting bracket covering the turbine and the worm relatively to a wrapping type power assembly, and the heat dissipation effect of the turbine and the worm is good.

Still through set up the motor installing support with front end housing integrated into one piece for fixed connection between motor installing support and the front end housing is more reliable. According to the scheme of the integrated forming, compared with the scheme of fixing the motor mounting bracket and the front end cover through the screws, the natural modal frequency is reduced, the probability of resonance generated during the working of the motor is reduced, namely the motor mounting bracket and the front end cover shake between the motor mounting bracket and the motor and the front end cover is reduced, so that the firmness of fixing the motor mounting bracket and the motor is improved, and a power assembly is protected.

On the basis of the above effects, in order to prevent interference between the motor mounting bracket and the top cover and ensure that the height of the overlapped part can effectively realize radial spacing, the vertical distance between the upper surface of the motor mounting bracket and the lower surface of the top cover is set to be less than or equal to the height of the second positioning structure protruding out of the upper surface of the motor mounting bracket.

8. In order to enhance the strength of the second positioning structure, the distance from the second positioning structure to the center of the second bearing seat is prolonged, so that the positioning area formed by the second positioning structure is enlarged, and a reinforcing rib is arranged between the second positioning structure and the second bearing seat. And, the bigger the location area is, the more stable the first mounting is just to motor installing support's fixed, the higher the reliability is, be difficult for rocking.

Meanwhile, when the motor mounting bracket and the top cover are mounted in place, the first positioning structure and the second positioning structure are fastened in place through the first fixing piece, the upper surface of the reinforcing rib is abutted to the lower surface of the first positioning structure, and the reinforcing rib is arranged to be flush with the second bearing seat.

9. There are the first drive shaft hole that the drive shaft that supplies on the turbine passes and forms through the lower surface that sets up the top cap the primary shaft seat in first drive shaft hole, first location structure are followed the lateral wall equipartition of primary shaft seat guarantees first location structure with when second location structure fastens to the target in place, be evenly distributed to the fastening force of motor installing support to promote the stability and the equilibrium of motor installing support fastening, prevent the slope of motor installing support.

Simultaneously, it is spacing to the circumference of motor installing support in order to realize first bearing frame, prevents that the motor installing support from rotating along with the rotation of drive shaft the crossing department setting of first location structure and first bearing frame includes the groove that splines of the muscle that splines, and splines the groove and pass through the rib that splines comes the block the strengthening rib.

Or a vertical trimming structure is arranged on the side wall of the second bearing seat, and a matching hole for clamping the trimming structure is formed in the first bearing seat, so that the trimming structure and the matching hole are clamped to realize circumferential limitation of the motor mounting bracket. The scheme of circumferential limiting can also improve the coaxial precision of the motor driving shaft and the driving shaft hole on the main body.

10. The power component is close to turbine, worm one side and passes through the fixed hoist and mount that realize power component one side of motor installing support and top cap, and power component is close to motor one side then through setting up the installation piece on the casing of motor, and the installation piece be used for with the top cap cooperation realizes the hoist and mount to the power component opposite side. Through the hoisting of the two sides of the power assembly, the full hoisting of the power assembly is realized.

Or the motor can be arranged outside the casing of the motor and wrapped from bottom to top, the installation fitting of the casing is provided with an installation piece, and the installation piece is used for being matched with the top cover to realize the hoisting of the motor. That is to say, power component is close to turbine, worm one side through the fixed hoist and mount that realize power component one side of motor installing support and top cap, and power component is close to the installation piece on the motor one side installation accessory, realizes the hoist and mount to the power component opposite side. Similarly, the power assembly is hoisted completely by hoisting the two sides of the power assembly. The motor accessory has the function of transverse limiting besides the function of axially fixing the electrode, and the shaking of the motor accessory in the horizontal direction is reduced.

The two full-hoisting schemes are as follows: when being favorable to assembling the frame on the one hand, only need to place the top cap that is equipped with power component on the plane, again with the bottom of frame and top cap lock can, need not to have the axial butt between bottom and the power component.

Drawings

The utility model is described in further detail below with reference to the accompanying drawings:

FIG. 1 is an exploded view of a dough mixer in accordance with an embodiment of the present invention;

FIG. 2 is an exploded view of a housing according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a guide seat according to an embodiment of the present invention;

fig. 4 is a structural schematic view of a guide seat according to an embodiment of the utility model;

FIG. 5 is an enlarged view of a portion of the area A indicated in FIG. 4 according to the present invention;

FIG. 6 is a cross-sectional view of a housing according to an embodiment of the present invention;

FIG. 7 is an enlarged view of a portion of the area B indicated in FIG. 6 according to the present invention;

FIG. 8 is an enlarged view of a portion of the area B of FIG. 6 without a stud according to the present invention;

FIG. 9 is a schematic structural diagram of a power assembly according to an embodiment of the present invention;

FIG. 10 is an enlarged, fragmentary view of the area C indicated in FIG. 9 in accordance with the present invention;

FIG. 11 is an enlarged view of a portion of the area C of the present invention 9 with the addition of a trimming structure;

fig. 12 is a schematic structural view of a power assembly having a mounting plate disposed on a motor housing according to an embodiment of the present invention;

FIG. 13 is a schematic structural diagram of a power assembly having a mounting fitting with a mounting plate at a lower end of a motor according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a power assembly in which mounting fittings with mounting pieces are arranged at the upper and lower ends of a motor according to an embodiment of the present invention.

The corresponding reference numbers for the component names in the figures are as follows:

1. a machine base; 2. a dough kneading cup; 21. a dough kneading knife; 22. a cup cover; 3. a power assembly; 31. a motor; 311. a front end cover; 312. mounting a sheet; 313. mounting accessories; 32. a worm; 321. a fan; 33. a turbine; 34. a motor mounting bracket; 341. a second positioning structure; 342. a second bearing housing; 3421. a trimming structure; 343. reinforcing ribs; 4. a cover plate; 41. a screw; 42. screw holes; 5. a guide seat; 51. a first positioning structure; 511. a stud hole; 52. a stud; 53. a first bearing housing; 531. a drive shaft hole; 532. stopping rotating the ribs; 533. a rotation stopping groove; 54. a limiting plate; 55. a first step; 56. a second step; 57. a drive shaft; 6. an overlapping portion; 7. a through hole; 71. an upper through hole; 72. a middle through hole; 73. and a lower through hole.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples. It is to be understood that the embodiments represent only possible variations, individual components and functions are optional unless explicitly required, and the terms "comprises", "comprising" or any other variation thereof herein are intended to cover a non-exclusive inclusion, such that a process, method or apparatus that comprises a list of elements does not include only those elements but also other elements not explicitly listed, for purposes of making the objects, aspects and advantages of the embodiments of the present invention more apparent, and the embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict. "upper", "lower", "front", "rear", "left", "right", "top", "bottom", and the like are used merely to indicate relative positional relationships, and when the absolute position of a described object is changed, the relative positional relationships may also be changed accordingly.

As shown in fig. 1 to 14, the utility model discloses a dough kneading machine with reliable installation, which comprises a machine base 1 internally provided with a power assembly 3, wherein the machine base 1 comprises a top cover 12 matched with the power assembly 3 and a bottom cover 11 buckled with the top cover 12 up and down to form the machine base 1, the power assembly 3 comprises a motor 31, a turbine 34 and a worm 33 which are positioned at the output end of the motor 31, a fan 321 used for dissipating heat of the power assembly is installed at one side of the worm 33 far away from the motor 31, the dough kneading machine further comprises a motor installation bracket 34 fixedly connected with the motor 31, the turbine 34 and the worm 33, and an end cover 311 fixed at the output end of the motor 31, and the turbine 34, the worm 33 and the motor 31 are jointly fixed. The fixed connection between the motor mounting bracket and the front end cover is more reliable.

In the solution of the present invention, the front end cover 311 is integrally formed with the motor mounting bracket 34. Compared with the existing scheme that the motor mounting bracket 34 and the front end cover 311 are fixed through screws, the integrally formed scheme has the advantages that the natural mode frequency is reduced, and the probability of resonance generated when the motor 31 works is reduced. That is, the shaking between the motor mounting bracket 34 and the front cover 311 and the motor 34 is reduced, so that the firmness of fixing the motor mounting bracket 34 and the motor 31 is improved, and the power assembly 3 is protected.

The fixing of the power assembly 3 to the top cover 12 near the worm wheel 34 and the worm is mainly achieved by the first fixing member, and the fixing to the side near the motor 31 has various ways, which will be described in detail later. That is to say, the scheme of the utility model is that the fixing reliability of the power assembly fixed in the machine base is ensured by fixing the two sides of the power assembly 3, so that the stability of the power assembly 3 in operation is ensured, the risk of damaging the power assembly 3 is reduced, and the service life of the dough mixer is prolonged.

As shown in fig. 9 and 12, the motor mounting bracket 34 extends from the end surface of the front cover 311 in the output direction of the worm 33 and partially covers the worm wheel 34 and the worm 33. According to the scheme, the whole power assembly 3 is an open power assembly, and relative to the wrapped power assembly, heat flow generated by the operation of the motor 31 in the scheme cannot be gathered in a closed space formed by wrapping the turbine 34 and the worm 33 by the motor mounting bracket 34, so that the heat dissipation effect at the turbine and the worm is good.

Further, as shown in fig. 1, the dough mixer further includes a dough mixing cup 2 on the base 1, a dough mixing knife 21 detachably mounted in the dough mixing cup 2, and a cup cover 22 covering the open end of the dough mixing cup 2. The general operation steps are that the dough kneading knife 21 is firstly arranged in the dough kneading cup 2, the user adds flour and water with proper proportion into the dough kneading cup 2, the cup cover 22 is covered, the power assembly 3 is started, and the dough kneading knife stirs the flour and the water under the driving action of the power assembly 3 until dough is formed. When power component and frame fix when circumference, axial and radial fixed reliability is high, violent rocking just can not appear in the whole in-process of flour mixing, also can the noise reduction, promotes that the user uses and experiences and feels.

In the technical solution of the present invention, as shown in fig. 2 and fig. 6 to 10, a first positioning structure 51 is disposed on the top cover 12, a second positioning structure 341 extending toward the top cover 12 is disposed on the upper surface of the motor mounting bracket 34, a first fixing member for axially fixing the first positioning structure 51 and the second positioning structure 341 is further disposed in the machine base 1, and the first positioning structure 51 and the second positioning structure 341 can be inserted into each other. That is, as shown in fig. 7, the first fixing member may axially fix the first positioning structure 51 and the second positioning structure 341 by being inserted into the two structures. In this case, the first fixing member is a member such as a stud 341, a screw, or a rivet, which can be inserted into the first positioning structure 51 and the second positioning structure 341 to be axially fastened. Preferably, the present scheme employs a stud 341.

Alternatively, as shown in fig. 8, when the first fixing member is not inserted into the first positioning structure 51 and the second positioning structure 341 to achieve axial fastening, the first fixing member may also be located on the bottom cover 11 of the housing 1 to support the power assembly, so as to achieve axial fastening of the first positioning structure 51 and the second positioning structure 341. In this case, the first fixing member is a support pillar structure (not shown in the drawings) located on the bottom cover 11, and the support pillar structure can just abut against the lower end of the power assembly when the top cover 12 and the bottom cover 11 are mounted in place. The mutual insertion and the fixing function of the first fixing member ensure the axial fixation and reliability of the first positioning structure 51 and the second positioning structure 341.

Meanwhile, as shown in fig. 7 and 8, in order to ensure that the motor mounting bracket 34 is reliably fixed in the radial direction when being fixed on the top cover 12, and to effectively reduce the shaking of the power assembly 3 in the horizontal direction, when the first positioning structure 51 and the second positioning structure 341 are arranged in the present solution to be fastened in place, that is, when the motor mounting bracket 34 and the top cover 12 are installed in place, the first positioning structure 51 and the second positioning structure 341 are inserted into each other and overlapped in the axial direction to form the overlapping portion 6. The presence of the overlap 6 indicates that the first positioning structure 51 is inserted into the second positioning structure 341 or that the second positioning structure 341 is inserted into the first positioning structure 51. Since the first positioning structure is a reliable structure fixed on the top cover 12, both of these two plugging manners realize radial limitation and radial fixation of the second positioning structure 341 by means of the first positioning structure 51. It can be understood that, since the second positioning structure 341 is integrated with the motor mounting bracket 34, and the motor mounting bracket is fixedly connected with the power assembly, the first positioning structure 51 also realizes radial limiting and radial fixing of the motor mounting bracket 34 and the power assembly 3, and prevents the power assembly 3 from radially shaking or vibrating in the working process. In addition, the relative insertion mode only needs to insert the first positioning structure 51 and the second positioning structure 341, so that the assembly process is simple and the installation is convenient.

In addition, by setting the height ratio of the overlapping part 6 to the second positioning structure 341 to be L, L is more than or equal to 0.15 and less than or equal to 0.6. Wherein, the height of the second positioning structure 341 refers to the vertical height of the upper surface of the second positioning structure 341 relative to the upper surface of the motor mounting bracket 34. The range of L indicates that the overlapping portion 6 has a suitable distance at one end in the axial direction to ensure the reliability of the radial position limitation. L is kept in the range of 0.15 to 0.6, so that on one hand, the first positioning structure 51 and the second positioning structure 341 can be prevented from slipping off and being difficult to align due to the excessively small overlapped part 6; on the other hand, it is also possible to prevent the problem that the material cost of the first positioning structure and the second positioning structure increases due to the excessively large overlapping portion.

It should be noted that, the radial limit of the overlapping portion 6 and the axial limit of the first fixing member realize that the motor mounting bracket 34, the power assembly 3 and the top cover 12 are both fixed reliably in the axial direction and the radial direction, and the shake of the motor mounting bracket and the power assembly in the working process is greatly reduced. In addition, only need to peg graft first location structure and second location structure each other, axial fixity is realized to the first mounting of rethread, and this kind of assembly process is simple, convenient, reliable, can also guarantee the stability of power component in the function, reduces the risk of haring power component, promotes flour-mixing machine's life.

Furthermore, in order to prevent interference between the motor mounting bracket 34 and the top cover 12 and ensure that the height of the overlapping portion 6 can effectively realize radial position limitation, the vertical distance between the upper surface of the motor mounting bracket 34 and the lower surface of the top cover 12 is set to be less than or equal to the height of the second positioning structure 341 protruding from the upper surface of the motor mounting bracket. That is, the first positioning structure 51 and the second positioning structure 341 are necessarily inserted into each other when they are installed in place.

In addition, as shown in fig. 2, in order to prevent the first fixing member from being exposed to affect the aesthetic property of the dough kneading machine and to prevent a user from touching the first fixing member, especially when the dough kneading machine has an accident and electric leakage, the human body is prevented from directly touching the first fixing member of the metal to cause injury to the human body, and a cover plate 4 covering the first positioning structure 341 is arranged above the upper surface of the top cover 12. The cover plate 4 is locked with the top cover 12 through a second fixing piece. In order to secure the fixing reliability of the cover plate, the second fixing member is a screw 41 shown in fig. 2, but may be other fastening materials such as a stud and a rivet.

In some embodiments of the present invention, as shown in fig. 6 and 7, the first positioning structure 51 and the second positioning structure 341 are axially and circumferentially fastened by vertically inserting the first fixing member into the first positioning structure 51 and the second positioning structure 341. The first fixing piece is a stud 52 shown in fig. 7, the stud 52 is vertically inserted into the through hole 7 formed by the first positioning structure 51 and the second positioning structure 341, and the first positioning structure and the second positioning structure are tightly fixed together, so that the axial and circumferential fixing is realized.

It should be noted that the through hole 7 is formed when the first positioning structure 51 and the second positioning structure 341 are fastened in place, and the through hole 7 penetrates through the first positioning structure 51, the second positioning structure 341 and the top cover 12, and is mainly used for accommodating the first fixing member. In this way, it is ensured that a first fixing member can pass through the first positioning structure 51 and the second positioning structure 341 at one time and fix the two.

Of course, if the first fixing member vertically fastens the first positioning structure 51 and the second positioning structure 341, and the cover plate 4 for shielding the first positioning structure 51 and the first fixing member is not disposed, the first fixing member may be exposed on the upper surface of the top cover 12, which may affect the aesthetic property of the base 1 and may cause a risk of electric leakage. Thus, the first fixing element may also be arranged transversely across the overlap 6, enabling axial fixation of the first 51 and second 341 positioning structures. However, this method needs to ensure that the outer side wall of the overlapping portion is provided with a tangent plane, so that the first fixing member can be attached to the tangent plane, and the reliability of transverse locking is improved.

It will be appreciated that the greater the horizontal extent enclosed by the first fixing element when axially tightened, the more stable the fixing of the power module 3. Therefore, in order to further improve the stability of the power assembly 3 fixed on the top cover 12 and reduce the shake, the first fixing member may be vertically inserted into the first positioning structure 51 and the second positioning structure 341 to achieve axial fastening, and the scheme is replaced by: the first fixing member is disposed to avoid the first positioning structure 51 and the second positioning structure 341, and the first fixing member passes through the plane of the motor mounting bracket 34 near the edge and the top cover 12 to axially fix the first positioning structure 51 and the second positioning structure 341.

Furthermore, the through hole 7 includes an upper through hole 71 recessed inwards from the upper surface of the top cover, and the upper through hole 71 is used for axially limiting the first fixing member, so that the first fixing member can be inserted into the through hole 7 when being fastened. Specifically, the first fixing element is a screw or a stud 341 or a rivet, and the upper through hole is mainly used for accommodating a head structure of the screw or the stud 341 or the rivet. In addition, the upper surface of the first fixing member is lower than or equal to the upper surface of the top cover 12, so as to prevent the first fixing member from being exposed on the upper surface of the top cover 12 and being directly contacted by a user, and to avoid the first fixing member from being worn.

As shown in fig. 8, the through-hole 7 further includes a lower through-hole 73 formed by the overlapping portion 6, and a middle through-hole 72 located between the upper through-hole 71 and the lower through-hole 73. The lower through hole 73 and the middle through hole 72 have the same aperture, and the two through holes are abutted against the side wall of the body part of the stud 341 together, so that the radial fixation of the stud is realized, and the loosening is prevented. Thereby further improving the reliability of the fixation of the first 51 and second 341 positioning structures.

In some embodiments of the present invention, in addition to the axial fixation of the first positioning structure 51 and the second positioning structure 341 by the first fixing member, in order to further improve the reliability of the axial position limitation of the first positioning structure 51 and the second positioning structure 341, either one of the first positioning structure 51 and the second positioning structure 341 is provided with a position limiting plate 54 that is in axial abutment with the end surface of the overlapping portion 6, and the axial position limitation between the first positioning structure 51 and the second positioning structure 341 is realized by the axial abutment of the position limiting plate 54 with the overlapping portion 6. As shown in fig. 4, 5, 7 and 8, when the second positioning structure 341 is inserted into the first positioning structure 51 to form the overlapping portion 6, a position-limiting plate 54 is disposed in the first positioning structure 51, and the position-limiting plate 54 is located above the overlapping portion 6. Preferably, as shown in fig. 7, when the first positioning structure 51 and the second positioning structure 341 are mounted in place by the locking action of the stud, the lower end surface of the limit plate 54 axially abuts against the upper end surface of the overlapping portion 6, and further axial limit of the second positioning structure 341 is achieved.

It will be appreciated that when the first positioning structure 51 is inserted into the second positioning structure 341 to form the overlapping portion 6, a position-limiting plate 54 is disposed in the second positioning structure 341, and the position-limiting plate 54 is located below the overlapping portion 6. When the first positioning structure 51 is mounted in place on the second positioning structure 341, the upper end surface of the stopper plate 54 axially abuts against the lower end surface of the overlap portion 6.

Further, after the scheme that the second positioning structure 341 is inserted into the first positioning structure 51 is adopted, in order to ensure the reliability of axial limiting of the first positioning structure 341 and the second positioning structure 51 and save materials, the limiting plate 54 is set to be a circular ring structure as shown in fig. 4 and 5. The annular structure extends from the inner sidewall of the first positioning structure 51 to the central axis of the first positioning structure 51, and the lower surface of the annular structure is used for axially abutting against the second positioning structure 341. In this embodiment, in addition to the first fixing member axially fixing the first positioning structure 341 and the second positioning structure 51, after the second positioning structure 51 is inserted into the first positioning structure 341, the lower surface of the annular structure abuts against the upper surface of the second positioning structure 341, so as to axially fix the second positioning structure 341.

Furthermore, the radius difference between the inner ring and the outer ring of the ring structure is equal to the wall thickness of the second positioning structure, that is, the inner diameter of the through hole from the upper surface of the ring structure to the lower end surface of the second positioning structure is the same. This just makes the inner hole wall of ring structure and second location structure 341 can butt first mounting jointly, to the radial butt of first mounting, realizes the radial positioning effect to first mounting.

In some embodiments of the present invention, as shown in fig. 6 to 8, the thickness of the top cover 12 is relatively thin compared to the axial height of the first positioning structure 51, so in order to reduce the cost of the top cover 12, the first positioning structure 51 is made into a positioning column structure extending from the lower surface of the top cover 12 to the inside of the housing 1. Of course, if the cost is high enough, the first positioning structure 51 can also be a through hole structure formed on the top cover 12 itself, and does not protrude toward the inside of the housing 1.

Simultaneously, in order to guarantee reference column structure and top cap 12 integrated into one piece's fastness, prevent that power component is overweight, lead to reference column structure and top cap 12 junction fracture, at the lateral wall of reference column structure at least formation one-level step, the reference column structure is close to top cap 12 radial dimension more big more. Preferably, as shown in fig. 7, the outer sidewall of the locating post structure is formed with two steps, and the radial dimension of the first step 55 is smaller than the radial dimension of the second step. Further, in order to ensure that the first positioning structure 51 has sufficient strength to the second positioning structure 341 to realize radial limiting, the radial thickness of any step is greater than the wall thickness of the second positioning structure 341.

In some embodiments of the present invention, as shown in fig. 9 to 11, in order to enhance the strength of the second positioning structure 341, the positioning area formed by the second positioning structure 341 is enlarged by extending the distance from the second positioning structure 341 to the center of the second bearing seat 342. Specifically, the strength of the second positioning structure 341 is enhanced by providing a rib 343 between the second positioning structure 341 and the second bearing housing 342. And, the bigger the location area is, the more stable the first fixing piece is to the fixed of motor installing support 34, the higher the reliability is, difficult rocking.

Meanwhile, in order to ensure that when the motor mounting bracket 34 and the top cover 12 are mounted in place, the upper surface of the reinforcing rib 343 abuts against the lower surface of the first positioning structure 51 to realize axial limiting, the reinforcing rib 343 is arranged flush with the second bearing seat 342.

As shown in fig. 4, 5 and 7, the lower surface of the top cover 12 is provided with a first drive shaft hole 531 through which the drive shaft 57 of the turbine 34 passes, and a first bearing housing 53 forming the first drive shaft hole 531. The first positioning structures 51 are uniformly distributed along the side walls of the first bearing seats 53, so that when the first positioning structures 51 and the second positioning structures 341 are fastened in place, the fastening force on the motor mounting bracket 34 is uniformly distributed, the fastening stability and balance of the motor mounting bracket 34 are improved, and the motor mounting bracket 34 is prevented from inclining.

Meanwhile, as shown in fig. 5, in order to circumferentially limit the motor mounting bracket 34 by the first bearing seat 53, that is, to prevent the motor mounting bracket 34 from rotating along with the rotation of the driving shaft 57, a rotation stopping groove 533 including a rotation stopping rib 532 is disposed at an intersection of the first positioning structure 51 and the first bearing seat 53, and the rotation stopping groove 533 is engaged with the reinforcing rib 343 on the second bearing seat 342 through the rotation stopping rib 532.

It can be understood that, as shown in fig. 11, a vertical trimming structure 3421 may also be provided on the side wall of the second bearing seat 342, and a mating hole (not shown in the drawings) for engaging with the trimming structure 3421 is provided on the first bearing seat 53, so that the trimming structure 3421 engages with the mating hole to realize the circumferential limit of the motor mounting bracket 34. The circumferential limiting scheme can also improve the coaxial precision of the driving shaft 57 and the driving shaft hole 531.

In some embodiments of the present invention, the power assembly 3 is close to the worm wheel 34, and one side of the worm 33 is fixed to the top cover 12 through the motor mounting bracket 34 to achieve the lifting of one side of the power assembly 3, as shown in fig. 12, one side of the power assembly 3 close to the motor 31 is provided with a mounting piece 312 on the casing of the motor 31, and the mounting piece 312 is used for cooperating with the top cover 12 to achieve the lifting of the other side of the power assembly 3. That is, the mounting piece 312 is used to cooperate with the top cover 12 to lift the motor 31. According to the scheme, the power assembly 3 is hoisted completely by hoisting the two sides of the power assembly 3.

Or as shown in fig. 13 and 14, an installation fitting 313 wrapping the housing from bottom to top may be disposed outside the housing of the motor 31, and an installation piece 312 is disposed on the installation fitting 313, where the installation piece 312 is used to cooperate with the top cover 12 to hoist the motor 31. That is to say, the power assembly 3 is lifted by fixing the motor mounting bracket 34 and the top cover 12 at the side close to the worm wheel 34 and the worm 33 of the power assembly 3. The power component 3 is close to one side of the motor 31, and the other side of the power component 3 is hoisted by fixing the mounting piece 312 on the mounting accessory 313 and the top cover 12. Similarly, the power assembly is hoisted completely by hoisting the two sides of the power assembly. The mounting fittings 313 not only fix the electrode in the axial direction, but also limit the electrode in the transverse direction, so that the shaking of the electrode in the horizontal direction is reduced.

Of course, the mounting fitting 313 may wrap the upper end of the motor 3 instead of wrapping the lower end of the motor 3, and the two mounting fittings 313 clamp the motor together, and then are fixed to the top cover 12 by the mounting pieces 312 of the two mounting fittings 313 on the same axis. This solution provides a better fixing of the power module 3, but requires two mounting fittings 313, which increases the cost and difficulty of assembly to some extent.

The three full-hoisting schemes are as follows: on one hand, when the base 1 is assembled, only the top cover 12 provided with the power assembly 3 needs to be placed on a plane, and then the bottom cover 11 of the base 1 is buckled with the top cover 12, so that the bottom cover 11 and the power assembly 3 do not need to be axially abutted.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above-described embodiments, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the utility model should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the embodiments of the utility model as disclosed, and the scope of the embodiments of the utility model as defined by the appended claims and their equivalents is deemed to be within the scope of the utility model.

Claims (10)

1. The utility model provides a dough mixer with reliable installation, is equipped with power component's frame in including, the frame include with power component complex top cap, power component includes the motor, is located the turbine and the worm of the output of motor, the dough mixer still includes fixed connection the motor installing support of motor, turbine and worm, its characterized in that, be equipped with first location structure on the top cap, the upper surface of motor installing support is equipped with the second location structure that extends formation to the top cap direction, still be equipped with in the frame and be used for the first mounting to first location structure and second location structure axial fixity, when the motor installing support with the top cap installation targets in place, first location structure and second location structure peg graft each other and form the overlap portion along the axial overlap, the overlap portion with the altitude ratio of second location structure is L, l is more than or equal to 0.15 and less than or equal to 0.6.

2. The noodle maker according to claim 1, wherein the first fixing member is vertically inserted into the first positioning structure and the second positioning structure to axially and circumferentially fasten the first positioning structure and the second positioning structure, when the first positioning structure and the second positioning structure are fixed in place, the first positioning structure and the second positioning structure jointly form a through hole for accommodating the first fixing member, the through hole penetrates through the first positioning structure, the second positioning structure and the top cover, the through hole comprises an upper through hole which is recessed inwards from the upper surface of the top cover, the upper through hole is used for accommodating the head of the first fixing member, and the upper surface of the head is lower than or equal to the upper surface of the top cover.

3. A reliable-installation dough mixer as claimed in claim 1, wherein said first fixing element extends transversely across said overlap to effect axial fixation of said first and second locating formations; or the first fixing piece avoids the arrangement of the first positioning structure and the second positioning structure, and the first fixing piece penetrates through the edge of the motor fixing support and the top cover to axially fix the first positioning structure and the second positioning structure.

4. A dough mixer with reliable installation according to claim 1, wherein either one of the first and second positioning structures is provided with a limit plate that forms an axial abutment with an end face of the overlap.

5. The dough mixer with reliable installation according to claim 4, wherein the limiting plate is a circular ring structure formed by extending from the inner side wall of the first positioning structure to the central axis of the first positioning structure, the lower surface of the circular ring structure is used for axially abutting against the second positioning structure, and the radius difference between the inner ring and the outer ring of the circular ring structure is equal to the wall thickness of the second positioning structure.

6. The dough mixer with reliable installation according to claim 1, wherein the first positioning structure is a positioning column structure extending from the lower surface of the top cover to the inside of the machine base, the outer side wall of the positioning column structure forms at least one step, the radial dimension of the positioning column structure is larger as the positioning column structure is closer to the top cover, and the radial thickness of any step is larger than that of the second positioning structure.

7. The dough mixer with reliable installation according to any one of claims 1 to 6, wherein the power assembly further comprises a front end cover fixed on the output end of the motor, the motor mounting bracket extends from the end surface of the front end cover to the output direction of the worm and partially covers the worm wheel and the worm, the motor mounting bracket is integrally formed with the front end cover, and when the motor mounting bracket and the top cover are fixed in place, the vertical distance between the upper surface of the motor mounting bracket and the lower surface of the top cover is less than or equal to the height of the second positioning structure protruding out of the upper surface of the motor mounting bracket.

8. The dough mixer with reliable installation according to claim 7, wherein the motor mounting bracket is provided with a second driving shaft hole for the driving shaft of the turbine to pass through and a second bearing seat forming the second driving shaft hole, and a reinforcing rib is connected between the second positioning structure and the second bearing seat and is flush with the second bearing seat.

9. The dough mixer reliable in installation according to claim 8, wherein the lower surface of the top cover is provided with a first drive shaft hole for a drive shaft on a turbine to pass through and a first bearing seat forming the first drive shaft hole, the first positioning structures are uniformly distributed along the side wall of the first bearing seat, a rotation stopping groove containing a rotation stopping rib is arranged at the intersection of the first positioning structures and the first bearing seat, and the rotation stopping groove is clamped with the reinforcing rib through the rotation stopping rib so as to realize circumferential limit of a motor mounting bracket; or a vertical trimming structure is arranged on the side wall of the second bearing seat, a matching hole clamped with the trimming structure is formed in the first bearing seat, and the trimming structure and the matching hole are clamped to realize circumferential limitation on the motor mounting bracket.

10. The dough kneading machine reliable in installation according to claim 1, wherein a mounting piece is arranged on a casing of the motor, and the mounting piece is used for being matched with the top cover to realize the hoisting of the motor; or the casing of motor is equipped with from down up the parcel outside the casing the installation accessory of casing, be equipped with the installation piece on the installation accessory, the installation piece be used for with the top cap cooperation realizes the hoist and mount to the motor.

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