HK1194641A - Food blender - Google Patents

Description

Food mixer

Technical Field

The invention relates to a cooking electric appliance for kitchen, in particular to a food mixer with a mixing knife group.

Background

The existing food mixer generally has a mixing function, which mainly includes: a body with a rotation driving function; a pan body arranged on the machine body; a stirring knife group which is arranged in the pot body and is driven by the machine body to rotate. The food blender may also have a heater disposed in the bottom region of the pan body to heat food within the pan body. The stirring blade set is usually fixedly installed in the pot body, and the stirring blade set cannot be detached by a user.

In the prior art, food mixers have been designed to allow a user to disassemble the blending blade assembly by himself, so as to facilitate cleaning or replacement of the disassembled blending blade assembly.

Fig. 1 is a schematic view of a part of a food mixer with a detachable mixing blade set in the prior art, which is disclosed in chinese patent No. 95193892.4. The food blender mainly comprises a blending knife group 6 with a cutting knife 110 and a cutting knife bearing 112, a mixing container with a mixing container bottom 67, a sealing ring 129 and a base 119. The cutter bearing 112 has an outwardly projecting lug 116 at its lower end. When the cutter bearing 112 is inserted in sequence into the sealing ring 129, the positioning hole 113 of the mixing container bottom 67 and the through hole 120 of the base 119, the projection 116 can pass through the channel 118 of the mixing container bottom 67 and the channel 121 of the base 119 and be located at the lower part of the annular boss 131. The base 119 is then rotated through about 180 degrees so that the projections 116 engage the lower surface of the annular boss 131 to lock the blending knife assembly 6 to the food blender. When the stirring blade set 6 needs to be disassembled, the base 119 needs to be rotated reversely by about 180 degrees. In the food mixer shown in fig. 1, the base 119 has a multi-piece structure in which a wave spring and a retaining ring are provided, and the annular protrusion 131 is formed by the retaining ring (see fig. 45 of the chinese patent 95193892.4).

The above-mentioned base 119 is complicated in structure, and since it needs to be rotated by about 180 degrees to lock or unlock the stirring blade unit 6, the food mixer is expensive to manufacture and inconvenient for a user to operate.

Accordingly, there is a need for a food blender that overcomes the above-mentioned disadvantages.

Disclosure of Invention

In order to solve the defects of the food mixer in the prior art, the invention provides a food mixer.

The technical scheme adopted by the invention for solving the technical problem is to provide a food mixer, which comprises: the pot body is provided with a bottom, and an opening is arranged on the bottom; the base is arranged at the bottom of the pot body and provided with a concave part, and the concave part is provided with a through hole corresponding to the opening; the stirring knife set comprises a stirring knife, a shaft lever and a bearing, the bearing is arranged on the shaft lever, the bearing comprises a flange and a joint section, the stirring knife is arranged at the upper end of the shaft lever, and the lower end of the joint section is provided with a lug; and a wave reed disposed in the recess of the base. This food mixer still includes: the locking component is provided with a cylinder and a deflector rod, the cylinder is arranged in the concave part of the base, the deflector rod extends outwards from the outer side of the cylinder, the inner side of the cylinder is provided with an axial groove and a circumferential groove, and the axial groove is communicated with the circumferential groove. The bearing can be inserted into the opening of the bottom, the through hole of the base, the wave-shaped reed and the cylinder in sequence, so that the flange abuts against the bottom of the pot body, the joint section is jointed with the opening of the bottom in a mode of preventing the bearing from rotating, and the lug at the lower end is positioned in the axial groove. The locking fastener presses the wave-shaped reed and the poking rod is poked to drive the cylinder body to rotate, so that the protruding block is positioned in the circumferential groove, and the stirring cutter set is locked on the pot body by means of the elasticity of the wave-shaped reed. By reversely shifting the shifting lever, the cylinder body can be rotated to enable the protruding block to be positioned in the axial groove, so that the stirring cutter set is detached from the pot body.

According to a first preferred aspect of the invention, the bottom of the pot body is a heating plate.

According to a second preferred aspect of the present invention (which is based on the first preferred aspect), the food mixer further comprises a sealing seat, the heating plate is further provided with a temperature control system, and the sealing seat is fixed on the bottom of the pot body through welding so as to waterproof and seal the temperature control system.

According to a third preferred aspect of the present invention (which is based on the above-described second preferred aspect), the base is fixed to the seal holder by screws.

According to a fourth preferred aspect of the invention, a sealing gasket is also clamped between the bottom of the pot and the flange of the bearing.

According to a fifth preferred aspect of the present invention, the lower end of the shaft is located in the recess of the base, and a gear is mounted at the lower end.

According to a sixth preferred aspect of the present invention (which is based on the fifth preferred aspect), the food mixer further includes a body, the base is mounted on the body, and the body can drive the gear to drive the mixing blade set to rotate.

According to a seventh preferred aspect of the present invention, the circumferential groove is defined by a horizontal surface or by a gradually decreasing surface.

According to an eighth preferred aspect of the present invention, the base is further provided with an accommodating portion and two stoppers, the accommodating portion accommodates the shift lever, and the two stoppers are respectively located at two sides of the accommodating portion so as to limit a rotation range of the shift lever within 90 degrees.

According to a ninth preferred aspect of the present invention, a stopper is further provided at the recess of the base so as to prevent the cartridge from being detached from the recess.

Compared with the prior art, the food stirrer has the following beneficial effects. The food mixer of the invention locks and releases the mixing cutter set by rotating the locking piece, and the base does not need to be integrally rotated, thereby being convenient to operate and clean.

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will be apparent from the description and drawings, and from the claims.

Drawings

The invention may be more particularly described, by way of example, with reference to the accompanying drawings, which are not drawn to scale, and in which:

FIG. 1 is a schematic view of a portion of a prior art food blender having a removable blending knife assembly;

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

FIG. 3 is a simplified schematic view of the food blending machine of FIG. 2;

FIG. 4 is a schematic cross-sectional view of a blade lock of the food blender shown in FIG. 2; and is

Fig. 5 is a schematic assembled plan view of the food blender shown in fig. 2.

Detailed Description

The present invention will be described in more detail with reference to specific examples. It is to be understood by those skilled in the art that these descriptions are merely illustrative of some specific embodiments of the present invention and do not limit the present invention and its scope.

In addition, spatially relative terms, such as "lower," "upper," and the like, may be used herein for ease of describing one component or its relationship to another component or components illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "lower" relative to other elements or elements could then be oriented "upper" relative to the other elements or elements.

Referring to fig. 2, an exploded perspective view of a food blender according to an embodiment of the present invention is shown. The food blender 300 mainly comprises a pan body 31, a base 32, a blending knife set 33, a wave-shaped spring 34, a locking fastener 35 and a sealing gasket 36.

Referring to fig. 3 to 4, the pot 31 has a bottom 311, and an opening 312 is formed on the bottom 311. The base 32 has a recess 321, and the recess 321 has a through hole 322 corresponding to the opening 312. The stirring blade set 33 includes a stirring blade 331, a shaft 332, and a bearing 333, the bearing 333 is mounted on the shaft 332, the bearing 333 includes a flange 3331 and a joining section 3332, the stirring blade 331 is mounted on the upper end of the shaft 332, and the joining section 3332 has a protrusion 3333 on the lower end. A gear 3321 is mounted at the lower end of the shaft 332. The locking member 35 has a cylinder 351 and a lever 352, the cylinder 351 is disposed in the recess 321 of the base 32, the lever 352 extends outward (e.g., along a direction perpendicular to the axial direction of the cylinder 351) from the outside of the cylinder 351, the cylinder 351 has an axial groove 3511 and a circumferential groove 3512 on the inside thereof, and the axial groove 3511 and the circumferential groove 3512 are communicated.

When assembled, the base 32 is disposed on the bottom 311 of the pot 31, and the wave spring 34 is disposed in the concave 321 of the base 32. The bearing 333 and shaft 332 can be inserted into the sealing washer 36, the opening 312 of the base 311, the through hole 322 of the base 32, the wave spring 34, and the barrel 351 in sequence such that the flange 3331 abuts against the sealing washer 36, the engagement section 3332 engages with the opening 312 of the base 311 in a manner that prevents rotation of the bearing 333 (e.g., the engagement section 3332 and opening 312 are designed to have a non-circular cross-section), and the lower protrusion 3333 is located within the axial groove 3511. The lower end of the shaft 332 and the gear 3321 are positioned within the recess 321 of the base 32. The opening 312 also has a channel 3121 corresponding to the projection 3333, and the recess 321 also has a channel 3211 corresponding to the projection 3333. By pressing the wave spring 34 by the locking member 35 and by turning the lever 352 to rotate the barrel 351, the protrusion 3333 is located in the circumferential groove 3512, so that the stirring blade assembly 33 is locked on the pot 31 by the elastic force of the wave spring 34. By reversing the toggle lever 352, the barrel 351 can be rotated such that the protrusion 3333 is located in the axial groove 3511, thereby detaching the blending tool set 33 from the pot 31.

The bottom 311 of the pot body 31 can also be a heating plate, and the heating plate is usually provided with a temperature control system and the like. At this time, the food mixer 300 may further include a sealing seat 313, and the sealing seat 313 may be fixed to the bottom 311 of the pot 31 by welding so as to waterproof-seal the temperature control system and the like. The base 32 can be fixed to the sealing seat 313 by screws.

The base 32 is further provided with a receiving portion 323 and two stoppers 324, the receiving portion 323 receives the shift lever 352, and the two stoppers 324 are respectively located at two sides of the receiving portion 323 so as to limit the rotation range of the shift lever 352 within 90 degrees. A stopper 325 is further provided at the recess 321 of the base 32 to prevent the cylinder 351 from being detached from the recess 321, for example, by being engaged with a stopper 3515 provided at the cylinder 351.

Referring again to fig. 4, the circumferential groove 3512 can be defined by a horizontal surface 3513. Of course, the horizontal surface 3513 can also be designed as a gradually decreasing surface to gradually compress the wave spring 34 as the tab 3333 rotates along the surface.

The food mixer 300 further includes a housing (not shown) on which the base 32 is mounted and which can drive the gear 3321 to rotate the mixing blade assembly 33. The body may also comprise other necessary components to perform its function, which are well known to those skilled in the art and will not be described in detail herein.

Compared with the prior art, the food stirrer has the following beneficial effects. The food mixer of the invention locks and releases the mixing cutter set by rotating the locking piece, and the base does not need to be integrally rotated, thereby being convenient to operate and clean; the rotating range of the rotating lock catch piece can be set in a smaller angle range; and the flexibility of the wave-shaped reed can also provide a damping effect for the stirring knife group when the stirring knife group rotates.

The foregoing is illustrative of the present invention and is not to be construed as limiting thereof. It should be noted that several improvements, modifications and variations of the present invention may be made by those skilled in the art, but these improvements, modifications and variations do not depart from the spirit of the present invention and are deemed to fall within the scope of the present invention.

Claims (10)

1. A food blending machine, comprising:

the pot body is provided with a bottom, and an opening is formed in the bottom;

the base is arranged at the bottom of the pot body and provided with a concave part, and the concave part is provided with a through hole corresponding to the opening;

the stirring knife set comprises a stirring knife, a shaft lever and a bearing, the bearing is installed on the shaft lever, the bearing comprises a flange and a joint section, the stirring knife is installed at the upper end of the shaft lever, and the lower end of the joint section is provided with a lug; and

a wave reed disposed in the recess of the base;

it is characterized in that the food mixer further comprises:

the locking device comprises a locking piece, a locking piece and a locking mechanism, wherein the locking piece is provided with a barrel and a shifting rod, the barrel is arranged in the concave part of the base, the shifting rod extends outwards from the outer side of the barrel, the inner side of the barrel is provided with an axial groove and a circumferential groove, and the axial groove is communicated with the circumferential groove;

wherein the bearing can be inserted into the opening of the bottom, the through hole of the base, the wave spring and the cylinder in sequence, so that the flange abuts against the bottom of the pot body, the joint section is jointed with the opening of the bottom in a manner of preventing the bearing from rotating, and the lug at the lower end is positioned in the axial groove; the locking fastener presses the wave-shaped reed and the shifting lever is shifted to drive the barrel to rotate, so that the protruding block is positioned in the circumferential groove, and the stirring knife set is locked on the pot body by means of the elasticity of the wave-shaped reed; by reversely shifting the shifting lever, the cylinder body can be rotated to enable the protruding block to be positioned in the axial groove, so that the stirring knife group is detached from the pot body.

2. The food mixer of claim 1, wherein the bottom of the pan body is a heat generating plate.

3. The food mixer of claim 2, further comprising a sealing seat, wherein the heating plate is further provided with a temperature control system, and the sealing seat is fixed to the bottom of the pot body by welding so as to waterproof and seal the temperature control system.

4. A food mixer according to claim 3, wherein the base is secured to the seal housing by screws.

5. The food mixer of claim 1 wherein a sealing gasket is further sandwiched between the bottom of the pan body and the flange of the bearing.

6. A food mixer according to claim 1, wherein the lower end of the shaft is located within a recess in the base, and a gear is mounted at the lower end.

7. The food blending machine of claim 6, further comprising a body, wherein the base is mounted to the body, and the body is capable of driving the gear to rotate the blending blade assembly.

8. A food mixer according to claim 1, wherein the circumferential groove is defined by a horizontal surface or by a gradually decreasing surface.

9. The food mixing machine of claim 1, wherein the base further comprises a receiving portion and two stops, the receiving portion receives the shift lever, and the two stops are respectively located on two sides of the receiving portion to limit a rotation range of the shift lever within 90 degrees.

10. The food blending apparatus of claim 1, wherein the base further comprises a stop at the recess to prevent the barrel from being removed from the recess.