Dough mixer and detachable connecting structure of stirring assembly of dough mixer

Abstract

According to the detachable connecting structure, the stirring assembly comprises a stirring shaft, a connecting part is arranged at the upper end of the stirring shaft, the connecting part comprises a connecting sleeve, the upper end of the connecting sleeve is open, a rectangular spiral spline is arranged on the inner wall of the connecting sleeve, and the rectangular spiral spline is connected with the stirring shaft. And the rectangular spiral spline is matched with a rectangular spiral spline groove at the output end of a driving device in the main machine of the dough mixer. According to the utility model, the stirring assembly is detachably connected with the driving device in the main machine through the matching of the rectangular spiral spline structure, and when the main machine works, the stirring assembly is always kept in a tensioning state, so that the main machine can be prevented from jumping under the extrusion acting force of dough, the safety performance and the stability of the dough mixer in use are improved, and the noise during working can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, specifically to a dough mixer and its mixing component with a detachable connection structure. Background Technology

[0002] A dough mixer can automate the kneading process, saving time and effort, and improving dough quality. It is suitable for both home and commercial use and is an invaluable tool for making pasta dishes.

[0003] To reduce the overall size of dough mixers and facilitate cleaning of the mixing bowl, existing technology employs a design where the base and main unit are separate. The drive unit is housed within the main unit. During use, the main unit is placed on the dough mixer's base, and the mixing component is placed inside the mixing bowl. The upper end of the mixing component protrudes from the bowl's lid and connects to the drive unit within the main unit. The main unit drives the mixing component to complete the kneading operation. This separate design not only effectively reduces the overall size of the machine but also allows the mixing component to be removed from the mixing bowl for cleaning, resulting in more thorough cleaning and greater ease of use.

[0004] However, in the above-mentioned scheme, the mixing component and the output end of the drive device are usually detachably connected by a spline structure. During the kneading process, the mixing component will be subjected to the upward squeezing force of the dough in the kneading bucket, causing the main unit to jump, making it noisy during operation. In addition, the user usually needs to hold down the main unit during operation, which is inconvenient to use. Utility Model Content

[0005] To address the aforementioned shortcomings, the technical problem to be solved by this utility model is to provide a detachable connection structure for a dough mixer and its mixing components, so as to solve the problems of the main unit jumping during the dough kneading operation, the loud noise during operation, and the inconvenience of use.

[0006] To this end, this application provides a detachable connection structure between the mixing component and the main body of a dough mixer. The mixing component includes a mixing shaft, the upper end of which is provided with a connecting part. The connecting part includes a connecting sleeve, the upper end of which is open, and the inner wall of which is provided with a rectangular spiral spline. The rectangular spiral spline is adapted to the rectangular spiral spline groove at the output end of the drive device in the main body of the dough mixer.

[0007] Based on the above technical solution, a rectangular spiral spline is provided on the upper end of the mixing shaft of the mixing component, which cooperates with the rectangular spiral spline groove on the output end of the drive device in the main unit to form a detachable connection structure of the mixing component. When the output shaft of the main unit rotates at high speed, the mixing component will always remain in a taut state and will not easily detach during operation, reducing noise and improving the safety and stability of the dough mixer.

[0008] In the above technical solution, preferably, two plate-shaped stirring blades are symmetrically arranged on the lower outer surface of the stirring shaft, and the opposite sides of the two stirring blades are respectively connected to the outer surface of the stirring shaft through ribs. The stirring blades and the stirring shaft are integrated by the ribs, which improves the overall strength of the stirring blades.

[0009] In the above technical solution, preferably, the lower end of the connecting sleeve is provided with a baffle to block the through hole on the lid of the dough mixing bucket. This structure can prevent flour or dough from overflowing during kneading, ensuring the cleanliness of the equipment and environment.

[0010] In the above technical solution, preferably, the initial helix angle of the rectangular helical spline is set to 10 to 30 degrees.

[0011] In the above technical solution, preferably, the rib is triangular in shape, and the upper end of the rib is connected to the bottom surface of the baffle through an arc-shaped plate, and the side of the rib is smoothly connected to the side of the arc-shaped plate. This structural form, on the one hand, further improves the overall strength of the mixing assembly, and on the other hand, the triangular rib leaves space for the dough to move above, which is conducive to better kneading of the dough and improving the quality of the dough.

[0012] In the above technical solution, preferably, the lower end of the stirring shaft is further provided with a bushing for rotating engagement with a positioning shaft on the inner surface of the bottom wall of the mixing bucket. This improves the rotational stability of the stirring assembly.

[0013] In the above technical solution, preferably, the lower end of the connecting sleeve is open, and the upper end of the stirring shaft extends into the interior of the connecting sleeve and is connected to the inner wall of the connecting sleeve through connecting ribs. This facilitates cleaner cleaning of the stirring assembly.

[0014] This application also provides a dough mixer, including a main unit, a base, a dough mixing bowl, and a mixing assembly. The base includes a pedestal for placing the dough mixing bowl and a body located on one side of the base and extending upward. The mixing assembly is placed inside the dough mixing bowl and is detachably connected to the main unit through the aforementioned detachable connection structure.

[0015] In the above technical solution, preferably, the top of the machine body is provided with a positioning groove, and a slot is opened on one side wall of the positioning groove. The bottom surface of the main body casing is provided with a protrusion adapted to the positioning groove. A locking plate is provided on the side of the protrusion opposite to the slot. The locking plate is opposite to the slot and can be locked into the slot to form a locking structure when the main body casing rotates. This structural design, with the locking plate, the slot locking structure, and the rectangular spiral spline structure on the stirring assembly working together, forms a bidirectional upper and lower limit on the main body, which can firmly press the main body against the machine body, ensuring the smooth operation of the stirring assembly and reducing noise during operation.

[0016] In the above technical solution, preferably, the side of the protrusion opposite to the slot is recessed, and the card plate is formed on the bottom surface of the protrusion.

[0017] As can be seen from the above technical solution, the detachable connection structure of the dough mixer and its mixing component provided by this utility model solves the problems of the main unit vibrating during the dough kneading process, resulting in high noise levels and inconvenience during operation. Compared with the prior art, this utility model has the following beneficial effects:

[0018] The mixing component and the drive unit inside the main unit are detachably connected through a rectangular spiral spline structure. When the main unit is working, the mixing component is always kept taut, which can prevent the main unit from jumping due to the extrusion force of the dough, improve the safety and stability of the dough mixer, and reduce the noise during operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced and explained below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the dough mixer provided by this utility model;

[0021] Figure 2 for Figure 1 A schematic diagram showing the dough mixer in its detached state;

[0022] Figure 3 for Figure 1 Schematic diagram of AA section in the middle;

[0023] Figure 4 This is a schematic diagram of the stirring assembly in this utility model;

[0024] Figure 5 for Figure 4 A schematic diagram of the stirring assembly as shown from below;

[0025] Figure 6 for Figure 4 A bottom view of the stirring assembly shown;

[0026] Figure 7 for Figure 6 BB-direction cross-section view;

[0027] Figure 8 This is a schematic diagram of the base structure in this utility model;

[0028] Figure 9 This is a schematic diagram showing the main unit of this utility model from a downward viewing angle;

[0029] Figure 10 This is a schematic diagram of the protrusion and the card plate on the casing of the main unit in this utility model;

[0030] Figure 11 for Figure 1 A partial schematic diagram of the CC section.

[0031] Figures 1-11 The correspondence between the parts is as follows:

[0032] 1. Main unit; 2. Base; 3. Mixing bucket; 4. Mixing assembly; 5. Drive unit;

[0033] Protrusion 110, clamping plate 111;

[0034] Base 210, body 220;

[0035] Positioning groove 221, slot 222;

[0036] Barrel body 310, barrel lid 320, recess 321, through hole 322;

[0037] Stirring shaft 41, connecting part 42;

[0038] Stirring blade 411, rib plate 412, arc plate 413, bushing 414, connecting rib 415;

[0039] Connecting sleeve 421, baffle 422, rectangular spiral spline 423;

[0040] Spline slot 51. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] To provide a clearer explanation and description of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are introduced below.

[0043] It should be noted that the directional terms such as "inner" and "outer", "front" and "back" and "left" and "right" in this article are based on the product's usage status. Obviously, the use of these directional terms does not limit the scope of protection of this solution.

[0044] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention provides a dough mixer, which includes a main unit 1, a base 2, a dough mixing bowl 3, and a mixing component 4.

[0045] The main unit 1 is equipped with a drive device 5, and the mixing component 4 can be detachably connected to the output end of the drive device 5. The mixing component 4 can be driven to rotate by the drive device 5 to perform the kneading operation.

[0046] The base 2 includes a base 210 and a body 220 located on one side of the base 210 and extending upward. When in use, the dough mixing bucket 3 is placed on the base 210.

[0047] The mixing bowl 3 includes a bowl body 310 and a bowl lid 320. The bowl lid 320 is detachably mounted on the upper opening of the bowl body 310. The bowl lid 320 has a recess 321 in the center, and a through hole 322 in the center of the recess 321. The mixing component 4 is placed inside the bowl body 310, and its upper end is connected to the drive device 5 in the main unit 1 through the through hole on the bowl lid 320. The drive device 5 drives the mixing component 4 to rotate, thereby realizing the kneading function.

[0048] like Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the stirring assembly 4 includes a stirring shaft 41 and a connecting part 42 disposed at the upper end of the stirring shaft 41. Two plate-shaped stirring blades 411 are symmetrically disposed on the lower outer surface of the stirring shaft 41. The two stirring blades 411 are horizontally disposed, and their opposite sides are respectively connected to the outer surface of the stirring shaft 41 through ribs 412.

[0049] The connecting part 42 includes a connecting sleeve 421 and a baffle 422 disposed at the lower end of the connecting sleeve 421. The stirring assembly 4 is placed inside the barrel 310. The connecting sleeve 421 passes through the through hole 322 on the barrel cover 320 and is connected to the driving device 5. The bottom surface of the recess 321 on the barrel cover 320 is supported on the baffle 422 to seal the through hole 322 on the barrel cover 320, preventing flour or dough from overflowing during kneading and ensuring the cleanliness of the equipment and environment.

[0050] The upper end of the connecting sleeve 421 is open, and a rectangular spiral spline 423 is provided on its inner wall. Correspondingly, the output end of the drive device 5 inside the main unit 1 is provided with a rectangular spiral spline groove 51 that matches the rectangular spiral spline 423 (see...). Figure 9The rectangular helical spline 423 and the rectangular helical spline groove 51 cooperate to achieve a plug-in detachable connection structure. With this connection structure, when the mixing component 4 rotates and kneads the dough, the rectangular helical spline 423 and the rectangular helical spline groove 51 cooperate to generate a downward pulling force on the mixing component 4, thereby pulling the main unit 1 down and pressing it tightly onto the machine body 220. This eliminates the need to press the main unit by hand, freeing the user's hands and making it convenient to use.

[0051] In the above scheme, the rectangular helical spline on the stirring shaft 41 of the stirring assembly 4 and the rectangular helical spline groove on the output end of the drive device in the main unit 1 constitute a detachable connection structure between the dough mixer and the stirring assembly 4. This detachable connection structure ensures that the stirring assembly 4 remains taut during operation and will not easily detach, improving the safety and stability of the dough mixer while reducing noise.

[0052] The initial helix angle of the rectangular helical spline 423 is set to 10 to 30 degrees. In one embodiment, the initial helix angle of the rectangular helical spline 423 is set to 15°. After testing, this initial helix angle can provide sufficient pull-down force and make insertion and removal operations quick and convenient.

[0053] The rib plate 412 is triangular in shape, which reduces resistance and allows space for the dough to move above. The upper end of the rib plate 412 is connected to the bottom surface of the baffle plate 422 through the arc plate 413. The side of the rib plate 412 and the side of the arc plate 413 are smoothly connected, thereby improving the overall strength of the mixing blade 411 and reducing damage to the mixing blade.

[0054] In this embodiment, a bushing 414 is provided at the lower end of the stirring shaft 41, and a positioning shaft that matches the bushing 414 is provided on the inner surface of the bottom wall of the barrel 310. The lower end of the stirring shaft 41 is inserted into the positioning shaft and rotated. This ensures the rotational stability of the stirring shaft 41 and reduces noise.

[0055] In another embodiment, the lower end of the connecting sleeve 421 is open, and the upper end of the stirring shaft 41 extends into the interior of the connecting sleeve 421 and is connected to the inner wall of the connecting sleeve 421 through the connecting rib 415. This improves the connection strength and makes the stirring assembly 4 easier to clean, preventing flour residue from remaining at the base and causing bacterial growth, thus ensuring hygiene and safety.

[0056] To more effectively prevent host 1 from moving up and down and improve operational stability, this application also includes a locking structure for host 1.

[0057] Specifically, such as Figure 8 , Figure 9 , Figure 10 , Figure 11As shown, the top of the fuselage 220 is provided with a positioning groove 221, and a slot 222 is provided on one side wall of the positioning groove 221.

[0058] The bottom surface of the main unit 1 housing is provided with a protrusion 110 that is adapted to the positioning groove 221. The side of the protrusion 110 opposite to the groove 222 is recessed, and a retaining plate 111 is formed on the bottom surface of the protrusion 110. The recessed side of the protrusion 110 forms a retaining plate structure that does not affect the disassembly of the main unit 1.

[0059] The card plate 111 is opposite to the slot 222 and can be locked into the slot 222 when the housing of the main unit 1 rotates to form a locking structure. The upper wall of the slot 222 presses on the card plate 111, thereby restricting the main unit 1 from moving upward.

[0060] Specifically, since there is a certain gap between the positioning groove 221 and the protrusion 110, when the main unit 1 is working, the force of the dough on the mixing shaft 41 will drive the main unit 1 to rotate, so the protrusion 110 will rotate at a small angle, causing the clamping plate 111 to be inserted into the groove 222. The upper wall of the groove 222 presses on the clamping plate 111, restricting the main unit 1 from moving upward.

[0061] The aforementioned card plate, slot locking structure, and rectangular spiral spline structure on the stirring assembly work together to form a two-way limit on the upper and lower parts of the main unit 1, which can reliably press the main unit 1 onto the machine body 200, ensuring the smooth operation of the stirring assembly 4 and reducing noise during operation.

[0062] Based on the above description of specific embodiments, the dough mixer, mixing assembly, and detachable connection structure provided by this utility model have the following advantages compared with the prior art:

[0063] First, the upper end of the mixing shaft of the mixing component is provided with a rectangular spiral spline, which cooperates with the rectangular spiral spline groove on the output end of the drive device in the main unit to form a detachable connection structure of the mixing component. When the output shaft of the main unit rotates at high speed, the mixing component will always remain in a taut state and will not easily detach during operation, reducing noise and improving the safety and stability of the dough mixer.

[0064] Secondly, a slot is provided on the side wall of the positioning groove at the top of the main body, and a corresponding locking plate is provided on the protrusion on the bottom surface of the main body casing. When the main body casing rotates, the locking plate is engaged in the slot to form a locking structure, which can restrict the main body from moving upward.

[0065] Third, the combination of the clamping plate, the slot locking structure, and the rectangular spiral spline structure on the mixing component forms a two-way limit on the main unit, which can firmly press the main unit against the machine body, ensuring the smooth operation of the mixing component and reducing noise during operation.

[0066] Finally, it should be noted that the terms "comprising," "including," or any other variations thereof as used herein are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a…" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] This utility model is not limited to the above-described preferred embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

Claims

1. A detachable connection structure of a kneading assembly of a dough kneader, the kneading assembly comprising a kneading shaft, characterized in that, an upper end of the kneading shaft is provided with a connecting part, the connecting part comprising a connecting sleeve, an upper end of the connecting sleeve being open, and a rectangular helical spline being provided on an inner wall of the connecting sleeve, the rectangular helical spline being adapted to a rectangular helical spline groove of an output end of a driving device in a main machine of the dough kneader.

2. A detachable connection structure of a kneading assembly of a dough mixer according to claim 1, wherein two sheet-shaped stirring blades are symmetrically provided on an outer side surface of a lower end of the kneading shaft, and opposite side edges of the two stirring blades are respectively connected to the outer side surface of the kneading shaft through a rib plate.

3. A detachable connection structure of a kneading assembly of a dough mixer according to claim 2, wherein a lower end of the connecting sleeve is provided with a baffle plate for assisting in supporting and plugging a through hole on a barrel cover of a dough barrel.

4. The detachable connection structure of the kneading assembly of the dough mixer according to claim 1, wherein an initial helical angle of the rectangular helical spline is set to 10-30 degrees.

5. The detachable connection structure of the kneading assembly of the dough mixer according to claim 3, wherein the rib plate is in a triangular shape, and an upper end of the rib plate is connected to a bottom surface of the baffle plate through an arc-shaped plate, and a side edge of the rib plate is smoothly and transitionally connected to a side edge of the arc-shaped plate.

6. The detachable connection structure of the kneading assembly of the dough mixer according to claim 1, wherein a lower end of the kneading shaft is further provided with a shaft sleeve for rotationally cooperating with a positioning shaft on an inner surface of a bottom wall of a barrel body of the dough barrel.

7. The detachable connection structure of the kneading assembly of the dough mixer according to claim 1, wherein the lower end of the connecting sleeve is open, and an upper end of the kneading shaft extends into the interior of the connecting sleeve and is connected to an inner wall of the connecting sleeve through a connecting rib.

8. A dough kneader, comprising a main machine, a machine base, a dough barrel and a kneading assembly, the machine base comprising a base for placing the dough barrel and a machine body extending upwardly and located at one side of the base, characterized in that, the kneading assembly is placed in the dough barrel and detachably connected to the main machine through the detachable connection structure according to any one of claims 1-7.

9. The dough kneader according to claim 8, characterized in that, a top end of the machine body is provided with a positioning groove, a slot is formed on one side wall of the positioning groove, a bottom surface of a machine shell of the main machine is provided with a protruding part adapted to the positioning groove, a clamping plate is provided on a side of the protruding part opposite to the slot, the clamping plate is opposite to the slot and can be clamped into the slot to form a clamping structure when the machine shell of the main machine rotates.

10. A dough mixer according to claim 9, characterised in that the side of the protruding part opposite to the slot is concave, and the clamping plate is formed on a bottom surface of the protruding part.

Images