Knife group fixing structure and mixer

Abstract

The present invention relates to a knife group fixing structure and a blender, wherein the knife group fixing structure comprises a cup body and a knife group, a mounting hole is provided at the bottom of the cup body, and a fixing seat is provided, the fixing seat comprises a limit seat, a button and a spring, the knife group and the limit seat are connected, and the connected knife group and the limit seat are integrally clamped in the mounting hole, the button is movably connected to the outside of the limit seat, the spring is provided between the limit seat and the button, and the limit seat and the button always have a tendency to be relatively separated, a limit groove is provided on the outer wall of the button, and correspondingly, a limit column which can be inserted into the limit groove is convexly provided on the bottom surface of the cup body, the blender adopts the knife group fixing structure, and also comprises a base for installing the cup body and a cup cover provided on the cup body. Compared with the prior art, the advantages of the present invention are: convenient locking and unlocking, and long service life.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to a knife group fixing structure and a mixer. Background Art

[0002] With the development of society, people's pursuit of quality of life is constantly improving. More people choose to cook their own food, and food processors or blenders are also popular in the market. At the end of cooking / blending, the pot / cup needs to be cleaned. There is a sharp knife set in the pot / cup. On the one hand, the knife set is sharp and easy to scratch the user's hands. On the other hand, the knife set is placed at the bottom of the pot, which is easy to create dead corners. In short, it is not easy to clean. Traditional knife sets also have many detachable structures. When the blade can be reversed, the tightening structure of the knife set will be loosened, resulting in problems such as failure of the knife set seal.

[0003] The utility model patent "A detachable structure of a cup body and a knife assembly for a wall breaking machine" with patent application number CN201820230829.4 (publication number CN208551478U) discloses a detachable structure of a cup body and a knife assembly for a wall breaking machine, including a cup body and a knife assembly; the knife assembly includes a knife shaft, a blade and a knife seat, one end of the knife shaft is connected to the blade and the other end is provided with a device for connecting to a motor transmission; a mounting hole is provided at the center of the bottom of the cup body, the upper end of the knife seat is against the upper bottom surface of the cup body, the lower end of the knife seat is embedded in the mounting hole, the knife shaft is passed through the knife seat and is rotatably connected to the knife seat, a limiting portion is provided at the lower end of the knife seat, and a limiting piece for clamping the limiting portion is provided on the lower bottom surface of the cup body; when disassembling the knife assembly, the limiting piece only needs to be removed first, and the knife assembly can be removed from the mounting hole; when installing the knife assembly, the lower end of the knife seat is embedded in the mounting hole, and then the limiting piece is installed to limit the limiting portion, so that the knife assembly can be fixed. Whether installing or removing, the operation is simple and no professional tools are required. In order to prevent the tightening structure of the knife set from being loosened, the above-mentioned detachable structure is locked and unlocked through the cooperation of the positioning groove and the positioning bead.

[0004] However, for the above solution, locking and unlocking each time is not convenient enough and will cause wear to the positioning beads, thereby affecting the service life of the detachable structure. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a knife group fixing structure which is convenient to lock and unlock and has a long service life in view of the current status of the prior art.

[0006] The second technical problem to be solved by the present invention is to provide a mixer which is easy to lock and unlock and has a long service life in view of the current status of the prior art.

[0007] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a knife group fixing structure, including a cup body and a knife group, a mounting hole is opened at the bottom of the cup body, and it is characterized in that: it also includes a fixing seat, the fixing seat includes a limit seat, a button and a spring, the knife group and the limit seat are connected, and the connected knife group and the limit seat are integrally clamped in the mounting hole, the button is movably connected to the outside of the limit seat, the spring is arranged between the limit seat and the button, and makes the limit seat and the button always have a tendency to separate relatively, a limiting groove is opened on the outer side wall of the button, and correspondingly, a limiting column which can be inserted into the limiting groove is convexly provided on the bottom surface of the cup body.

[0008] Preferably, the limit seat has a first cavity, and the button can slide in the first cavity. The provision of the first cavity can improve the stability of the button when it slides and avoid its deviation when it slides.

[0009] Preferably, the button has a second cavity, the spring is accommodated in the second cavity, and one end of the spring abuts against the inner wall of the second cavity, and the other end abuts against the limit seat. The second cavity can facilitate the placement of the spring.

[0010] Furthermore, at least two connecting holes are provided on the limit seat, and correspondingly, a waist-shaped hole corresponding to the connecting holes and extending along the sliding direction of the button is provided on the button. The limit seat and the button are connected by fasteners passed through the connecting holes and the waist-shaped holes, and can achieve relative sliding under the action of external force or the elastic force of the spring.

[0011] Preferably, a gripping portion for finger-actuated operation is convexly provided on the button, thereby facilitating user operation.

[0012] Preferably, the knife set includes a knife shaft, a blade and a bearing seat, the blade is connected to the top of the knife shaft, the bearing seat is sleeved on the outer periphery of the knife shaft and can rotate around the knife shaft, the bearing seat is connected to the limit seat, and the bearing seat and the limit seat are clamped in the installation hole. The knife shaft is used to be connected to the motor on the base, the blade is used to cut and stir food, and the bearing seat is used to connect to the fixed seat.

[0013] Furthermore, the limit seat is provided with a sleeve for inserting the bearing seat, the sleeve is inserted into the mounting hole, the bearing seat is inserted into the sleeve, and the outer wall of the bearing seat is convexly provided with a stopper that can cover the mounting hole inside the cup body. When the knife set is assembled with the fixed seat, the sleeve is connected with the bearing seat, and the stopper and the limit seat are clamped on both sides of the mounting hole.

[0014] Furthermore, a plurality of buckles are radially protruded on the side wall of the limit seat, and correspondingly, a buckle groove corresponding to the buckle is opened on the inner side wall of the sleeve, and each buckle is inserted into the corresponding buckle groove to realize the connection between the sleeve and the bearing seat.

[0015] Furthermore, a slide groove corresponding to the buckle is provided on the inner side wall of the sleeve along the axial direction, and the slide groove is connected to the buckle slot for the buckle to slide and enter the buckle slot. The arrangement of the slide groove can facilitate the buckle to be inserted into the buckle slot, and reduce the wear of the buckle during each assembly process.

[0016] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a blender adopting the above-mentioned knife group fixing structure, characterized in that it also includes a base for installing the cup body and a cup cover arranged on the cup body, and a motor for connecting with the knife group and driving the knife group to rotate is arranged in the base.

[0017] Compared with the prior art, the advantages of the present invention are: the locking between the fixed seat and the cup body can be achieved through the cooperation of the limit groove and the limit column to prevent the fixed seat from rotating relative to the cup body, and the unlocking between the fixed seat and the cup body can be achieved by pressing the button to compress the spring and then rotating the fixed seat. The knife group fixing structure is easy to lock and unlock and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the three-dimensional structure of the mixer in the embodiment of the present invention;

[0019] Figure 2 for Figure 1 Schematic diagram of the three-dimensional decomposition of

[0020] Figure 3 for Figure 2 A three-dimensional exploded schematic diagram of the fixing structure of the middle blade group;

[0021] Figure 4 for Figure 2 Schematic diagram of the three-dimensional structure of the middle knife group;

[0022] Figure 5 for Figure 2 A schematic diagram of the three-dimensional structure of the middle fixing seat;

[0023] Figure 6 for Figure 5 A cross-sectional view of

[0024] Figure 7 for Figure 5 Schematic diagram of the three-dimensional decomposition of

[0025] Figure 8 for Figure 1 Schematic diagram of the three-dimensional structure when the fixed structure of the middle knife group is unlocked;

[0026] Fig. 9 for Figure 1 A schematic diagram of the three-dimensional structure when the fixing structure of the middle knife group is about to be locked;

[0027] Fig.10 for Figure 1 Schematic diagram of the three-dimensional structure when the fixed structure of the middle knife group is locked;

[0028] Fig.11 for Figure 1 Schematic diagram of the three-dimensional structure when the fixing structure of the middle knife group is about to be unlocked. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below with reference to the accompanying drawings.

[0030] like Figures 1 to 11 As shown, the knife group fixing structure of the present invention comprises a cup body 1, a knife group 2 and a fixing seat 3, a mounting hole 11 is provided at the bottom of the cup body 1, the knife group 2 and the fixing seat 3 are connected, and the connected knife group 2 and the fixing seat 3 are integrally clamped in the mounting hole 11. The present invention also provides a blender, which, in addition to the cup body 1, the knife group 2 and the fixing seat 3, further comprises a base 4 for mounting the cup body 1 and a cup cover 5 covering the cup body 1, and a motor for connecting with the knife group 2 and driving the knife group 2 to rotate is provided in the base 4.

[0031] The knife set 2 includes a knife shaft 21, a blade 22 and a bearing seat 23. The blade 22 is connected to the top of the knife shaft 21. The bearing seat 23 is sleeved on the outer periphery of the knife shaft 21 and can rotate around the knife shaft 21. The knife shaft 21 is used to connect with the motor on the base 4, the blade 22 is used to cut and stir food, and the bearing seat 23 is used to connect with the fixed seat 3.

[0032] The assembly method of the knife group 2 and the fixed seat 3 can be set according to the requirements. In this embodiment, the fixed seat 3 includes a limited seat 31, and the limited seat 31 is provided with a sleeve 313 for inserting the bearing seat 23. The sleeve 313 is inserted into the mounting hole 11, and the bearing seat 23 is inserted in the sleeve 313. The outer wall of the bearing seat 23 is convexly provided with a stopper 231 that can cover the upper part of the mounting hole 11 inside the cup body. When the knife group 2 and the fixed seat 3 are assembled, the sleeve 313 is connected to the bearing seat 23, and the stopper 231 and the limited seat 31 are clamped on both sides of the mounting hole 11. In order to realize the connection between the sleeve 313 and the bearing seat 23, a plurality of buckles 232 are convexly provided on the side wall of the limited seat 31 in the radial direction, and correspondingly, a card slot 3131 corresponding to the buckle 232 is opened on the inner wall of the sleeve 313, and each buckle 232 is inserted into the corresponding card slot 3131. A slide groove 3132 corresponding to the buckle 232 is axially opened on the inner wall of the sleeve 313. The slide groove 3132 is connected to the slot 3131 for the buckle 232 to slide and enter the slot 3131. The setting of the slide groove 3132 can facilitate the insertion of the buckle 232 into the slot 3131, thereby reducing the wear of the buckle 232 during each assembly process.

[0033] In addition, in order to prevent the fixed seat 3 from rotating relative to the cup body 1 and to prevent the knife group 1 and the fixed seat 3 from falling off due to not rotating in place, and to improve the safety of the knife group fixing structure, a locking structure is provided between the fixed seat 3 and the cup body 1. The specific implementation of the locking structure can be set according to the needs. In this embodiment, the outer side of the limit seat 31 is movably connected with a button 32, and a spring 33 is provided between the limit seat 31 and the button 32 so that the limit seat 31 and the button 32 always have a relative separation tendency. A limit groove 321 is provided on the outer wall of the button 32, and correspondingly, a limit column 12 that can be inserted into the limit groove 321 is convexly provided on the bottom surface of the cup body 1. The cooperation between the limit groove 321 and the limit column 12 can realize the locking between the fixed seat 3 and the cup body 1, and the unlocking between the fixed seat 3 and the cup body 1 can be realized by pressing the button 32 to compress the spring 33 and then rotating the fixed seat 3. The button 32 and the limit seat 31 can be matched in various ways, such as directly connecting the two ends of the spring 33 to the button 32 and the limit seat 31 respectively. In this embodiment, the limit seat 31 has a first cavity 311, and the button 32 can slide in the first cavity 311; the button 32 has a second cavity 322, and the spring 33 is accommodated in the second cavity 322, one end of the spring 33 abuts against the inner wall of the first cavity 311, and the other end abuts against the inner wall of the second cavity 322. The limit seat 31 is provided with at least two connecting holes 312, and correspondingly, the button 32 is provided with a waist-shaped hole 323 corresponding to the connecting holes 312 and extending along the sliding direction of the button 32. The limit seat 31 and the button 32 are connected by fasteners penetrating the connecting holes 312 and the waist-shaped hole 323, and can achieve relative sliding under the action of external force or the elastic force of the spring 33. The setting of the first cavity 311 can improve the stability of the button 32 when it slides and avoid its displacement when it slides. The setting of the second cavity 322 can facilitate the placement of the spring 33. The cooperation of the connecting hole 312 and the waist-shaped hole 323 can realize the connection between the limit seat 31 and the button 32 and facilitate their relative sliding. In addition, in order to facilitate user operation, in this embodiment, there are two buttons 32, which are respectively arranged on both sides of the limit seat 31; the button 32 is provided with a gripping portion 324 for finger driving.

[0034] The working principle of the present invention is as follows:

[0035] (1) Assembly and locking: Align the buckle 232 of the bearing seat 23 with the slide groove 3132 of the sleeve 313 and insert it, so that the buckle 232 slides along the slide groove 3132 until it moves to the side of the slot 3131 (such as Figure 8 As shown), the fixing seat 3 is rotated clockwise. At this time, the sleeve 313 rotates relative to the bearing seat 23. During the rotation process, as shown in FIG. Fig. 9As shown, on the one hand, the button 32 contacts the limiting column 12, and the spring 33 is compressed and contracted. On the other hand, the slot 3131 moves toward the buckle 232. When the fixing seat 3 is rotated into place, on the one hand, the button 32 is reset under the rebound force of the spring 33, and the limiting column 12 is inserted into the limiting slot 321. On the other hand, the buckle 232 is inserted into the slot 3131. At this time, Fig.10 As shown, the knife group fixing structure is in a locked state, and the knife group 2 and the fixing seat 3 are assembled;

[0036] (2) Unlocking and disassembling: Press the grip 324 of the button 32 with your finger, as shown in the figure. Fig.11 As shown, the spring 33 is compressed and contracted, the limiting column 12 is separated from the limiting groove 321, and then the fixing seat 3 is rotated counterclockwise. At this time, the sleeve 313 rotates relative to the bearing seat 23. When the fixing seat 3 is rotated into place, the finger is released, and the buckle 232 enters the slide groove 3132, as shown in FIG. Figure 8 As shown, the knife assembly fixing structure is in an unlocked state, and finally the bearing seat 23 is pulled out to make the buckle 232 slide along the slide groove 3132, so that the disassembly between the knife assembly 2 and the fixing seat 3 can be completed.

Claims

1. A knife assembly fixing structure, comprising a cup body (1) and a knife assembly (2), wherein a mounting hole (11) is provided at the bottom of the cup body (1), and characterized in that: The cup body (1) further comprises a fixing seat (3), wherein the fixing seat (3) comprises a limiting seat (31), a button (32) and a spring (33); the knife group (2) and the limiting seat (31) are connected; the connected knife group (2) and the limiting seat (31) are integrally clamped in the mounting hole (11); the button (32) is movably connected to the outside of the limiting seat (31); the spring (33) is arranged between the limiting seat (31) and the button (32) and makes the limiting seat (31) and the button (32) always have a tendency to be relatively separated; a limiting groove (321) is provided on the outer side wall of the button (32); correspondingly, a limiting column (12) which can be inserted into the limiting groove (321) is convexly provided on the bottom surface of the cup body (1); the limiting seat (31) has a first cavity (3 11), the button (32) can slide in the first cavity (311); the button (32) has a second cavity (322), the spring (33) is accommodated in the second cavity (322), and one end of the spring abuts against the inner wall of the second cavity (322), and the other end abuts against the limit seat (31); the limit seat (31) is provided with at least two connecting holes (312), and correspondingly, the button (32) is provided with waist-shaped holes (323) corresponding to the connecting holes (312) and extending along the sliding direction of the button (32); the limit seat (31) and the button (32) are connected by fasteners inserted into the connecting holes (312) and the waist-shaped holes (323), and can achieve relative sliding under the action of external force or the elastic force of the spring (33).

2. The knife assembly fixing structure according to claim 1, characterized in that: The button (32) is convexly provided with a gripping portion (324) for finger driving.

3. The knife assembly fixing structure according to claim 1, characterized in that: The knife assembly (2) comprises a knife shaft (21), a blade (22) and a bearing seat (23); the blade (22) is connected to the top of the knife shaft (21); the bearing seat (23) is sleeved on the outer circumference of the knife shaft (21) and can rotate around the knife shaft (21); the bearing seat (23) is connected to a limit seat (31); the bearing seat (23) and the limit seat (31) are clamped in the mounting hole (11).

4. The knife assembly fixing structure according to claim 3, characterized in that: The limit seat (31) is provided with a sleeve (313) for inserting the bearing seat (23), the sleeve (313) is inserted into the mounting hole (11), and the bearing seat (23) is inserted in the sleeve (313), and the outer wall of the bearing seat (23) is convexly provided with a stopper (231) along the circumferential direction and can cover the mounting hole (11) inside the cup body.

5. The knife assembly fixing structure according to claim 4, characterized in that: A plurality of buckles (232) are radially protruded on the side wall of the limit seat (31), and correspondingly, a buckle groove (3131) corresponding to the buckle (232) is opened on the inner side wall of the sleeve (313), and each buckle (232) is inserted into the corresponding buckle groove (3131).

6. The knife assembly fixing structure according to claim 5, characterized in that: A sliding groove (3132) corresponding to the buckle (232) is axially provided on the inner side wall of the sleeve (313). The sliding groove (3132) is connected to the buckle (3131) and is used for the buckle (232) to slide and enter the buckle (3131).

7. A mixer using the knife assembly fixing structure according to any one of claims 1 to 6, characterized in that: The invention also comprises a base (4) for mounting the cup body (1) and a cup cover (5) arranged on the cup body (1); a motor for connecting with the knife group (2) and driving the knife group (2) to rotate is arranged in the base (4).

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