Accessory locking mechanism and kitchen electric appliance

Abstract

The utility model relates to the technical field of kitchen electric appliances, in particular to an accessory locking mechanism and a kitchen electric appliance, according to the accessory locking mechanism, an inserting part on one side of an accessory is inserted into a locking ring on a machine base, a positioning block is embedded into a positioning groove, so that the accessory can be conveniently positioned and inserted, and a handle is provided with a locking block opposite to the positioning block. The locking block is provided with a first locking surface, the positioning block is provided with a second locking surface opposite to the first locking surface, and when the handle is pressed downwards to rotate to a locking position, the first locking surface of the locking block is in contact with the second locking surface of the positioning block, so that the accessory is locked; when the handle is pushed upwards to rotate to the unlocking position, the first locking face of the locking block is separated from the second locking face of the positioning block, the accessory is unlocked, the inserting part on one side of the accessory can be pulled out of the locking ring, the structure is simple, use is convenient, and the stability of connection between the machine base and the accessory is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen appliance technical field, concretely relates to a kind of accessory locking mechanism and kitchen appliance. BACKGROUND

[0002] Chef machine, dough kneader and dough mixer are a kind of common kitchen appliances, mainly a multifunctional kitchen appliance that can knead dough, beat eggs and stir in Chinese and western pastry field, the existing chef machine generally has at least two output shafts, one of which is vertically arranged to knead dough, beat eggs and stir, and the other is horizontally arranged to add accessories for making noodles, mincing, sausage, slicing, shredding, granulating, powdering and juicing, etc., and the accessories are installed on the horizontally arranged output shaft of the chef machine by locking device.

[0003] The Chinese utility model patent with application number 202323113029.4 discloses a key locking and disconnecting structure of multifunctional dough kneader and meat grinding cylinder assembly, which comprises a multifunctional dough kneader and a meat grinding cylinder assembly. A first mounting sleeve is arranged at one end of the multifunctional dough kneader, and a second mounting sleeve is arranged at one end of the meat grinding cylinder assembly. A through hole is formed in the first mounting sleeve, and a blind hole is formed in the second mounting sleeve. A control button structure is arranged at one end of the through hole of the first mounting sleeve. The control button structure comprises a button and a shaft. When the shaft passes through the through hole, it abuts against the bottom wall of the blind hole and locks the meat grinding cylinder assembly and the multifunctional dough kneader. When the shaft moves away from the through hole, it moves away from the bottom wall of the blind hole and disconnects the meat grinding cylinder assembly and the multifunctional dough kneader. The patent sets a blind hole and a control button structure. When the control button structure locks the meat grinding cylinder assembly, it ensures the stable installation of the meat grinding part and the multifunctional dough kneader. The meat grinding cylinder assembly will not be disconnected due to shaking during operation. However, the patent has the following defects: due to the lack of a positioning structure, when the meat grinding cylinder assembly is placed at an incorrect angle, the shaft cannot be quickly inserted into the blind hole after passing through the through hole.

[0004] A meat grinder is a device used in meat processing enterprises to process raw meat into granular meat according to different process requirements. It is widely used in industries such as various sausages, ham sausages, luncheon meat, meatballs, salty flavor essence, pet food, and other meat products. A household meat grinder is a common kitchen appliance that processes meat into granular meat, making it convenient for families to make sausages, meat stuffing, and meatballs. Due to its convenience and efficiency, it has been widely used. Most existing meat grinders use the output shaft of the base to drive the screw in the meat grinding accessory to rotate for meat grinding. In order to facilitate disassembly and cleaning, the meat grinding accessory is installed on the base by a locking device.

[0005] The utility model discloses a tool-free dismounting meat grinder, which comprises a main box, a meat grinder and a meat supporting disc, wherein the meat supporting disc is connected with the meat grinder; the main box is provided with a protruding circular nail; the meat grinder is provided with a circular bowl piece with an enlarged diameter; the circular bowl piece is provided with a lock hole; and the circular nail and the lock hole are adapted and fixed. The tool-free dismounting meat grinder provided by the utility model is connected between the main box and the meat grinder through a rotary locking mode, allowing a user to quickly dismount the meat grinder without using a screwdriver or a wrench. However, the utility model connects the screw rod and the screw hole through the through hole, which can be tool-free but is inconvenient to dismount. SUMMARY

[0006] In order to overcome the shortcomings and deficiencies in the prior art, the utility model aims to provide a spare part locking mechanism and a kitchen appliance.

[0007] The utility model discloses a spare part locking mechanism, which is fixed on the base of a kitchen appliance and used for interfacing and installing with a spare part. The spare part locking mechanism comprises a locking ring fixed on the base and a handle hinged to the locking ring. One side of the spare part is fixed with a plug-in part, which is inserted into the locking ring. The outer side wall of the plug-in part is outwardly provided with a positioning block. The locking ring is provided with a positioning groove corresponding to the position of the positioning block. The positioning block is embedded in the positioning groove. The handle is provided with a locking block corresponding to the position of the positioning block. The locking block has a first locking surface. The positioning block has a second locking surface opposite to the first locking surface. When the handle is turned to a locking position, the first locking surface of the locking block contacts the second locking surface of the positioning block. When the handle is turned to an unlocking position, the first locking surface of the locking block is separated from the second locking surface of the positioning block.

[0008] Further, the handle comprises a hinged part hinged to the locking ring and a handle part fixed to the hinged part. The locking mechanism further comprises a positioning mechanism for positioning when the handle is locked and / or opened.

[0009] Further, the locking ring comprises an annular panel, an outer annular wall fixed to the outer edge of the annular panel and an inner annular wall fixed to the inner edge of the annular panel. The hinged seat is arranged between the inner annular wall and the outer annular wall. The hinged part is transversely provided with a first hinged hole. A hinged shaft is sleeved in the first hinged hole. The two ends of the hinged shaft are respectively hinged to the hinged seat. The outer annular wall is provided with a third gap corresponding to the position of the handle part.

[0010] Further, the locking ring is made of plastic or metal.

[0011] Further, the positioning mechanism comprises a spring sheet fixed to the locking ring, a positioning protrusion arranged at the end of the spring sheet, and a first positioning slot arranged in the side wall of the hinged part, the positioning protrusion abuts against the side wall of the hinged part, and when the handle is rotated to the locking position, the positioning protrusion is embedded in the first positioning slot.

[0012] Further, the positioning mechanism further comprises a second positioning slot arranged in the side wall of the hinged part, and when the handle is rotated to the unlocking position, the positioning protrusion is embedded in the second positioning slot.

[0013] Further, the positioning mechanism comprises a spring sheet fixed to the locking ring, a positioning protrusion arranged at the end of the spring sheet, and a first positioning slot arranged in the side wall of the hinged part, the positioning protrusion abuts against the side wall of the hinged part, and when the handle is rotated to the locking position, the positioning protrusion is embedded in the first positioning slot.

[0014] Further, the positioning mechanism further comprises a second positioning slot arranged in the side wall of the hinged part, and when the handle is rotated to the unlocking position, the positioning protrusion is embedded in the second positioning slot.

[0015] A kitchen appliance comprises a base and a fitting, and further comprises the fitting locking mechanism.

[0016] The fitting locking mechanism of the utility model has the advantages that the fitting is inserted into the locking ring on the base through the insertion part on one side of the fitting, and the positioning block is embedded in the positioning slot, so that the fitting is positioned and inserted conveniently, the locking block is arranged at the position of the handle relative to the positioning block, the locking block has a first locking surface, the positioning block has a second locking surface opposite to the first locking surface, the first locking surface of the locking block is in contact with the second locking surface of the positioning block when the handle is pressed downward and rotated to the locking position, the fitting is locked, the first locking surface of the locking block is separated from the second locking surface of the positioning block when the handle is pushed upward and rotated to the unlocking position, the fitting is unlocked, the insertion part on one side of the fitting can be pulled out from the locking ring, the structure is simple, the use is convenient, and the stability of the connection between the base and the fitting is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the assembly perspective view of the base, the fitting and the fitting locking mechanism.

[0018] Figure 2 is the assembly perspective exploded view of the base, the fitting and the fitting locking mechanism.

[0019] Figure 3 is the perspective view of the fitting.

[0020] Figure 4 is the perspective view of the fitting locking mechanism in the first embodiment of the utility model.

[0021] Figure 5 Figure 2 is a perspective exploded view of the accessory locking mechanism according to the first embodiment of the present application.

[0022] Figure 6 Figure 3 is a perspective view of the handle according to the first embodiment of the present application.

[0023] Figure 7 Figure 4 is a partial cross-sectional view of the accessory locking mechanism and the accessory according to the first embodiment of the present application.

[0024] Figure 8 Figure 6 is a perspective view of the accessory locking mechanism according to the second embodiment of the present application.

[0025] Figure 9 Figure 7 is a perspective exploded view of the accessory locking mechanism according to the second embodiment of the present application.

[0026] Figure 10 Figure 8 is a perspective view of the handle according to the second embodiment of the present application.

[0027] Figure 11 Figure 9 is a partial cross-sectional view of the accessory locking mechanism and the accessory according to the second embodiment of the present application.

[0028] The reference signs are: base 1, accessory 2, plug-in part 21, positioning block 22, first notch 221, first locking surface 222, locking ring 3, positioning groove 31, second notch 311, annular surface plate 32, outer annular wall 33, third notch 331, inner annular wall 34, annular inner plate 341, hinged seat 35, second hinged hole 351, fixing hole 352, mounting column 36, mounting hole 361, screw 362, elastic sheet 37, positioning protrusion 371, elastic mechanism 38, handle 4, locking block 41, first locking surface 411, hinged part 42, first hinged hole 421, first positioning groove 422, second positioning groove 423, third positioning groove 424, fourth positioning groove 425, handle part 43, hinged shaft 44. DETAILED DESCRIPTION

[0029] For the convenience of understanding of those skilled in the art, the following will be combined with the embodiments and the accompanying drawings to further illustrate the present application. Figures 1-11 The present application is further illustrated, and the contents mentioned in the embodiments are not limitations of the present application.

[0030] As Figures 1-7The utility model discloses a kind of accessory locking mechanisms, which is fixed on the base 1 of kitchen appliance, for interfacing installation with accessory 2, the accessory locking mechanism includes locking ring 3 fixed on base 1 and handle 4 articulated in locking ring 3, one side of accessory 2 is fixed with plug-in part 21, plug-in part 21 is inserted into locking ring 3, the outer side wall of plug-in part 21 is outwardly provided with positioning block 22, locking ring 3 is opened with positioning groove 31 corresponding the position of positioning block 22, positioning block 22 is embedded in positioning groove 31, handle 4 is fixed with locking block 41 corresponding the position of positioning block 22, locking block 41 has first locking surface 411, positioning block 22 has second locking surface 222 opposite to first locking surface 411, when handle 4 is rotated to locking position, first locking surface 411 of locking block 41 is in contact with second locking surface 222 of positioning block 22, when handle 4 is rotated to unlocking position, first locking surface 411 of locking block 41 is separated from second locking surface 222 of positioning block 22.In this embodiment, the number of positioning block 22 is two, two positioning blocks 22 are symmetrically provided on the top and bottom of plug-in part 21, first notch 221 is opened on the left side of two positioning blocks 22, which facilitates locking block 41 to be clamped into first notch 221, of course, first notch 221 can also be opened on the positioning block 22 on the top.In other embodiments, the number of positioning block 22 can also be one or more than two, in order to facilitate positioning, generally not more than four. Second notch 311 is opened in the inner side of positioning groove 31 corresponding to the position of first notch 221 on the top, which facilitates the front end of locking block 41 to pass through second notch 311 and be clamped into first notch 221 when locking; the front end of locking block 41 can be located in second notch 311 or separated from second notch 311 after being separated from first notch 221 when unlocking.

[0031] The accessory locking mechanism of the utility model inserts plug-in part 21 on one side of accessory 2 into locking ring 3 on base 1, positioning block 22 is embedded in positioning groove 31, which facilitates the positioning insertion of accessory 2, handle 4 is fixed with locking block 41 corresponding the position of positioning block 22, locking block 41 and positioning block 22 are provided with locking surface on the opposite side, when handle 4 is pressed and rotated to locking position, the locking surface of locking block 41 is in contact with the locking surface of positioning block 22, which realizes the locking of accessory 2; when handle 4 is pushed and rotated to unlocking position, the locking surface of locking block 41 is separated from the locking surface of positioning block 22, which realizes the unlocking of accessory 2, so that plug-in part 21 on one side of accessory 2 can be pulled out of locking ring 3, the structure is simple, convenient to use, and the stability of the connection between base 1 and accessory 2 is improved.

[0032] In the embodiment, the handle 4 comprises a hinged part 42 hinged to the locking ring 3 and a handle part 43 fixed to the hinged part 42, and the locking mechanism further comprises a positioning mechanism for positioning when the handle 4 is locked and / or opened. In the embodiment, the hinged part 42 and the handle part 43 are integrally formed, the locking block 41 is fixed to the left side of the hinged part 42, and the locking block 41 is integrally formed with the hinged part 42 in a crescent structure. The positioning mechanism can be used for positioning when the handle 4 is locked and / or opened, preventing the handle 4 from being excessively rotated and damaging the handle 4 and the locking ring 3.

[0033] In the embodiment, the locking ring 3 comprises an annular panel 32, an outer annular wall 33 fixed to the outer edge of the annular panel 32, and an inner annular wall 34 fixed to the inner edge of the annular panel 32, two hinged seats 35 are symmetrically fixed between the inner annular wall 34 and the outer annular wall 33, the hinged part 42 is transversely provided with a first hinged hole 421, a hinged shaft 44 is sleeved in the first hinged hole 421, and both ends of the hinged shaft 44 are hinged to the two hinged seats 35, respectively. Specifically, the outer annular wall 33 is provided with a third notch 331 corresponding to the position of the handle part 43, the positioning groove 21 is provided in the inner annular wall 34, and the number of the positioning groove 21 corresponds to the number of the positioning block 22. In the embodiment, the number of the positioning groove 21 is two, and the two positioning grooves 21 are symmetrically provided at the top and bottom of the inner annular wall 34, the right side of the inner annular wall 34 extends inwardly to form an annular inner plate 341, and the annular panel 32, the outer annular wall 33, the inner annular wall 34, and the annular inner plate 341 are integrally formed; the two hinged seats 35 are respectively provided with a second hinged hole 351 corresponding to the position of the first hinged hole 421, and both ends of the hinged shaft 44 are hinged to the two second hinged holes 351, respectively; a plurality of transversely arranged mounting columns 36 are uniformly distributed between the inner annular wall 34 and the outer annular wall 33, a mounting hole 361 is axially provided in the middle of the mounting column 36, and the locking ring 3 is screwed and fixed to the base 1 through a plurality of screws 362 passing through the corresponding mounting holes 361. In the embodiment, the number of the mounting columns 36 is three, and in other embodiments, the number of the mounting columns 36 can also be two or more than three. In order to facilitate installation, the number is generally not more than four.

[0034] In the embodiment, the positioning mechanism comprises a spring sheet 37 fixed to the inner side of the locking ring 3, a positioning protrusion 371 protruding from the end of the spring sheet 37, and a first positioning groove 422 hinged to the outer side wall of the hinge part 42, the positioning protrusion 371 abuts against the outer side wall of the hinge part 42, and when the handle 4 is rotated to the locked position, the positioning protrusion 371 is embedded in the first positioning groove 422. Specifically, the spring sheet 37 is integrally formed at the second notch 311 of the locking ring 3, the locking ring 3 is made of plastic material, so that the spring sheet 37 has a certain elasticity, and the positioning protrusion 371 at the end of the spring sheet 37 can abut against the outer side wall of the hinge part 42, and the positioning protrusion 371 is integrally formed at the end of the spring sheet 37; the first positioning groove 422 is located on the circumference of the outer side wall of the hinge part 42 corresponding to the position of the positioning protrusion 371, and when the handle 4 is rotated to the locked position, the positioning protrusion 371 is embedded in the first positioning groove 422.

[0035] In the embodiment, the positioning mechanism further comprises a second positioning groove 423 hinged to the outer side wall of the hinge part 42, and when the handle 4 is rotated to the unlocked position, the positioning protrusion 371 is embedded in the second positioning groove 423. The second positioning groove 423 is also located on the circumference of the outer side wall of the hinge part 42 corresponding to the position of the positioning protrusion 371, and when the handle 4 is rotated to the unlocked position, the positioning protrusion 371 is embedded in the second positioning groove 423.

[0036] A kitchen appliance comprises a base 1 and an accessory 2, and further comprises the accessory locking mechanism as described above, one side of the accessory locking mechanism is fixed to the base 1 of the kitchen appliance, and the accessory 2 is inserted into the accessory locking mechanism from the other side for docking installation. The kitchen appliance of the utility model can be a chef machine, a dough kneading machine, a dough stirring machine, a noodle machine or a meat grinder. The accessory of the utility model can be a meat grinding accessory, a noodle accessory, a sausage stuffing accessory, a slicing accessory, a shredding accessory, a granulating accessory, a powder grinding accessory or a juicing accessory. The accessory 2 has an input shaft, the base 1 has an output connector corresponding to the position of the accessory locking mechanism, and after the insertion part 21 of the accessory 2 is inserted into the locking ring 3 for locking, the input shaft of the accessory 2 is docked with the output connector in the locking ring 3, so that the input shaft of the accessory 2 is driven to rotate by the output connector through the driving mechanism in the base 1.

[0037] As shown in the 8-11 as the embodiment two of the accessory locking mechanism of the utility model, the difference between this embodiment and the above-mentioned embodiment one is that: the positioning mechanism includes the elastic mechanism 38 embedded in the locking ring 3 and the third positioning groove 424 opened in the side surface of the hinged part 42, the contact surface of the elastic mechanism 38 abuts against the side surface of the hinged part 42, when the handle 4 rotates to the locking position, the contact surface of the elastic mechanism 38 is embedded in the third positioning groove 424. The locking ring 3 is of metal material, can adopt the elastic mechanism 38 to be positioned, specifically, one of the hinged seats 35 is opened with the fixed hole 352, the elastic mechanism 38 is installed in the fixed hole 352, the contact surface of the elastic mechanism 38 abuts against the side surface of the hinged part 42, the third positioning groove 424 is opened on the circumference of the side surface of the hinged part 42 corresponding to the contact surface position, when the handle 4 rotates to the locking position, the contact surface of the elastic mechanism 38 is embedded in the third positioning groove 424. In this embodiment, the elastic mechanism 38 adopts the wave bead screw, and the contact surface of the elastic mechanism 38 is the outer side surface of the glass bead. Of course, it can be understood that in other embodiments, a blind hole opened in one of the hinged seats 35, a compression spring placed in the blind hole and a ball partially protruding outside the blind hole can also be used to achieve, and the two ends of the compression spring abut against the inner side wall of the blind hole and the ball respectively.

[0038] In this embodiment, the positioning mechanism further includes a fourth positioning groove 425 opened in the side surface of the hinged part 42, and when the handle 4 rotates to the unlocking position, the contact surface of the elastic mechanism 38 is embedded in the fourth positioning groove 425. The fourth positioning groove 425 is opened on the circumference of the side surface of the hinged part 42 corresponding to the contact surface position, and when the handle 4 rotates to the unlocking position, the contact surface of the elastic mechanism 38 is embedded in the fourth positioning groove.

[0039] The above-mentioned embodiments are the preferred implementation scheme of the utility model, in addition to this, the utility model can also be realized in other ways, under the premise of not departing from the utility model concept, any obvious replacement is within the protection scope of the utility model.

Claims

1. A fitting locking mechanism fixed to a base of a kitchen appliance for interfacing with a fitting for installation, characterized in that: The accessory locking mechanism comprises a locking ring fixed on the base and a handle hinged to the locking ring, one side of the accessory is fixed with a plug-in part, the plug-in part is inserted into the locking ring, the outer side wall of the plug-in part is outwardly provided with a positioning block, the locking ring is provided with a positioning groove corresponding to the position of the positioning block, the positioning block is embedded into the positioning groove, the handle is provided with a locking block corresponding to the position of the positioning block, the locking block has a first locking surface, the positioning block has a second locking surface opposite to the first locking surface, when the handle is turned to the locking position, the first locking surface of the locking block is in contact with the second locking surface of the positioning block, when the handle is turned to the unlocking position, the first locking surface of the locking block is separated from the locking surface of the second positioning block.

2. The fitting lock mechanism of claim 1, wherein: The handle comprises a hinged part hinged to the locking ring and a handle part fixed to the hinged part, and the locking mechanism further comprises a positioning mechanism for positioning when the handle is locked and / or opened.

3. An accessory lock mechanism according to claim 2, wherein: The locking ring comprises an annular panel, an outer annular wall fixed to the outer edge of the annular panel, and an inner annular wall fixed to the inner edge of the annular panel, and a hinged seat is arranged between the inner annular wall and the outer annular wall, the hinged part is transversely provided with a first hinged hole, and a hinged shaft is sleeved in the first hinged hole, and the both ends of the hinged shaft are hinged to the hinged seat respectively.

4. The fitting lock mechanism of claim 2, wherein: The locking ring is made of plastic or metal.

5. The fitting lock mechanism of claim 2, wherein: The positioning mechanism comprises a spring sheet fixed to the locking ring, a positioning protrusion arranged at the end of the spring sheet, and a first positioning groove arranged in the side wall of the hinged part, the positioning protrusion abuts against the side wall of the hinged part, when the handle is turned to the locking position, the positioning protrusion is embedded into the first positioning groove.

6. An accessory lock mechanism according to claim 5, wherein: The positioning mechanism further comprises a second positioning groove arranged in the side wall of the hinged part, when the handle is turned to the unlocking position, the positioning protrusion is embedded into the second positioning groove.

7. The fitting lock mechanism of claim 2, wherein: The positioning mechanism comprises a spring mechanism embedded in the locking ring and a third positioning groove arranged in the side surface of the hinged part, the contact surface of the spring mechanism abuts against the side surface of the hinged part, when the handle is turned to the locking position, the contact surface of the spring mechanism is embedded into the third positioning groove.

8. An accessory lock mechanism according to claim 7, wherein: The positioning mechanism further comprises a fourth positioning groove arranged in the side surface of the hinged part, when the handle is turned to the unlocking position, the contact surface of the spring mechanism is embedded into the fourth positioning groove.

9. A kitchen appliance comprising a carcass and an accessory, characterized in that: The accessory locking mechanism of any one of claims 1-8 is further included.

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