Handheld heating stirrer

Abstract

The utility model relates to the technical field of stirrers, and particularly discloses a handheld heating stirrer which can be matched with a driving device such as a motor for use, a stirring mechanism is driven by the driving device, and the stirring mechanism extends into a container containing liquid food or solid food. The stirring mechanism is used for stirring and mixing liquid food such as dairy products, thick soup, rice paste, eggs and the like, or crushing solid food such as fruits, peanut kernels, walnut kernels and the like; the protective cover is arranged to prevent stirred liquid food or crushed solid food from splashing, and the protective cover is of an assembled structure, so that the assembly difficulty of parts such as the stirring mechanism and the heater is reduced; the inner pipe is additionally arranged in the shell, and the wire of the heater is fixed in the inner pipe, so that the wire can be prevented from being wound.

Description

Technical Field

[0001] The utility model relates to the technical field of stirrers, in particular to a handheld heating stirrer. Background Art

[0002] Handheld blenders can be used to quickly and effectively stir materials evenly, making the mixing between materials and the fusion of the materials themselves more uniform. They are widely used in food production processes and have functions such as stirring, mixing, and crushing. For example, they can be used to stir and mix liquids such as dairy products, thick soups, rice paste, eggs, and crush nuts such as fruits, peanut kernels, and walnut kernels.

[0003] In the related art, hand-held blenders usually only include blending and crushing functions. If the user needs to heat the blended food, an external heating device must be used to heat the food. The operation process of the above processing method is complicated, and the external heating device also causes excessive occupation of kitchen space. Therefore, how to improve the functional diversity and heating convenience of the blending component has become a hot research issue in the current field.

[0004] In view of the above problems, some manufacturers have designed a stirrer with a heating function. Such a structure can refer to a hand-held stirrer disclosed in Chinese patent publication No. CN102727108A, which includes a shell, a micromotor for providing driving force, a transmission mechanism and at least one stirring component. The micromotor and the transmission mechanism are connected and arranged together in the shell. The stirring component is connected to the transmission mechanism. A PTC heater is provided on the stirring component. The PTC heater is connected to a power source through a heat-resistant wire.

[0005] In the prior art, a stirrer with a heating function usually designs the shell and the protective cover into an integrated structure, which makes it difficult to assemble the stirring component, heater and other components; moreover, the wires of the heater are usually directly installed in the shell, and when the rotating shaft rotates, the wires are easily entangled.

[0006] Therefore, the prior art still needs to be improved and developed. Utility Model Content

[0007] In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a handheld heating blender to solve the problems of the prior art handheld blender being difficult to assemble and the wires being easily tangled.

[0008] A handheld heating stirrer comprises a shell, a transmission mechanism arranged in the shell, a stirring mechanism connected to the transmission mechanism, and a protective cover sleeved on the outside of the stirring mechanism, wherein the transmission mechanism comprises a transmission shaft, the transmission shaft sleeve is provided with a shaft sleeve, the shaft sleeve is connected with a heat conducting plate, a closed inner cavity is formed between the heat conducting plate and the protective cover, a heater is arranged in the inner cavity, an inner tube is also arranged in the shell, the inner tube is sleeved on the outside of the transmission shaft and does not rotate with the rotation of the transmission mechanism, and the wire of the heater is located in the gap formed by the inner tube and the shell.

[0009] Specifically, the heater is arranged on the upper end surface of the heat conducting plate, and the heater is an ultra-thin electric heating sheet.

[0010] Specifically, the ultra-thin electric heater is a printed metal film with a thickness not exceeding 2 mm.

[0011] Specifically, a wire groove is provided on the outer side surface of the inner tube, and the wires of the heater are installed in the wire groove.

[0012] Specifically, the transmission mechanism also includes a fastener, which is arranged at the end of the transmission shaft; the stirring mechanism also includes at least one stirring blade fixed to the end of the transmission shaft by the fastener, and the protective cover and the shell are fixedly connected to the sleeve.

[0013] Specifically, a bearing and an elastic seal are further provided in the shaft sleeve. The bearing sleeve is provided on the transmission shaft, and the elastic seal is located between the bearing and the stirring blade.

[0014] Specifically, the housing is threadedly connected to the sleeve.

[0015] Specifically, a sealing ring is provided between the housing and the shaft sleeve.

[0016] Specifically, gaskets are provided at both upper and lower ends of the stirring blade, one end of the elastic seal is interference fit with the shaft sleeve, and the other end is elastically in contact with the gasket.

[0017] Specifically, the protective cover is provided with a plurality of notches.

[0018] Beneficial effects of the utility model:

[0019] The handheld heating stirrer of the utility model can be used in conjunction with a driving device such as a motor. The stirring mechanism is driven by the driving device and extended into a container containing liquid food or solid food. The stirring mechanism is used to stir and mix liquid food such as dairy products, thick soup, rice paste, eggs, etc., or to crush solid food such as fruits, peanut kernels, walnut kernels, etc.; a protective cover is provided to prevent the stirred liquid food or crushed solid food from splashing, and the protective cover is an assembled structure, which reduces the difficulty of assembling components such as the stirring mechanism and the heater; an inner tube is added in the shell, and the wire of the heater is fixed to the inner tube, which can avoid the wire from being entangled. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the handheld heating stirrer of the utility model;

[0021] Figure 2 A bottom view of the handheld heating stirrer of the utility model;

[0022] Figure 3 for Figure 2 Cross-section of the middle AA surface;

[0023] Figure 4 This is a diagram of the internal structure of the handheld heating stirrer of the present utility model.

[0024] The figures are marked as: shell 10, transmission mechanism 20, stirring mechanism 30, protective cover 40, heat conduction plate 50, inner cavity 42, heater 60, inner tube 70, wire 61, wire groove 71, transmission shaft 21, fastener 22, stirring blade 31, sleeve 32, bearing 33, elastic seal 34, sealing ring 35, gasket 36, notch 41. DETAILED DESCRIPTION

[0025] The utility model provides a handheld heating stirrer. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] like Figure 1 and Figure 4The present embodiment discloses a handheld heating stirrer, comprising a shell 10, a transmission mechanism 20 arranged in the shell 10, a stirring mechanism 30 connected to the transmission mechanism 20, and a protective cover 40 sleeved on the outside of the stirring mechanism 30. The transmission mechanism 20 comprises a transmission shaft 21, the transmission shaft 21 is sleeved with a shaft sleeve 32, the inner diameter of the shaft sleeve 32 is larger than the outer diameter of the transmission shaft 21, so that the shaft sleeve 32 does not rotate with the rotation of the transmission shaft 21, the shaft sleeve 32 is connected with a heat conducting plate 50, a closed inner cavity 42 is formed between the heat conducting plate 50 and the protective cover 40, a heater 60 is arranged in the inner cavity 42, an inner tube 70 is further arranged in the shell 10, the inner tube 70 is sleeved on the outside of the transmission shaft 21 and does not rotate with the rotation of the transmission mechanism 20, a wire 61 of the heater 60 is located in the gap formed by the inner tube 70 and the shell 10, ensuring that the wire 61 cannot contact the transmission shaft 21 and avoiding the wire 61 from being exposed outside the shell 10.

[0028] The handheld heating blender of the present embodiment can be used in conjunction with a main unit (not shown). A driving device such as a motor is provided in the main unit. The transmission mechanism 20 is transmission-connected to the output end of the driving device. The transmission mechanism 20 is driven to rotate by the driving device, and then the stirring mechanism 30 is driven to perform a stirring action. The stirring mechanism 30 is extended into a container containing liquid food or solid food. The stirring mechanism 30 is used to stir and mix liquid food such as dairy products, thick soup, rice paste, eggs, etc., or to crush solid food such as fruit, peanut kernels, walnut kernels, etc.

[0029] Moreover, in order to realize the electrical connection between the wire 61 of the heater 60 and the host, a power contact can be set at the connection position between the top of the shell 10 and the host, and the wire 61 of the heater 60 is extended to the power contact position and connected thereto. After the host is installed, the power output end of the host contacts with the power contact, and power is supplied to the heater 60 through the host.

[0030] A protective cover 40 is disposed outside the stirring mechanism 30 to prevent the stirred liquid food or crushed solid food from splashing, and the protective cover 40 is an assembled structure, which reduces the difficulty of assembling components such as the stirring mechanism 30 and the heater 60.

[0031] In addition, the stirring mechanism 30 is connected to a heat conducting plate 50, and a closed inner cavity 42 is formed between the heat conducting plate 50 and the protective cover 40. A heater 60 is provided in the inner cavity 42. The heater 60 is arranged on the upper end surface of the heat conducting plate 50 in a fitting manner. When the liquid food in the container needs to be heated, the heater 60 can generate heat after being powered on. Therefore, during the stirring process, heat is also transferred to the liquid food in the container through the heater 60, thereby achieving the effect of heating while stirring. There is no need to use an external heating device to heat the food, which is convenient for users.

[0032] Furthermore, the ultra-thin electric heater is a printed metal film with a thickness not exceeding 2 mm. It has a small thickness, occupies a small space, and has a more compact structure.

[0033] On the other hand, since the heater 60 is equipped with a long wire 61, the conventional structure is to place the wire 61 in the housing 10, and when the transmission mechanism 20 rotates, the wire is easily entangled. In order to solve this problem, this embodiment adds an inner tube 70 in the housing 10, and the inner tube 70 is sleeved on the outside of the transmission mechanism 20 and does not rotate with the rotation of the transmission mechanism 20. The wire 61 of the heater 60 is fixed to the inner tube 70, which can prevent the wire 61 from being entangled.

[0034] Furthermore, a wire groove 71 is provided on the outer side of the winding inner tube 70, and the wire 61 of the heater 60 is inserted into the wire groove 71. The wire 61 is restricted by the wire groove 71, which has a good wire management effect. Moreover, by grooving, the wire 61 is accommodated in the wire groove 71, which can be more reasonably wired, reduce the space occupied by the wire 61, and make the overall structure more compact.

[0035] Please refer to Figure 4 The heater 60 is fixed to the upper end surface of the heat conducting plate 50 by bonding, welding, screwing, etc., so as to prevent the heater 60 from loosening during stirring and reduce noise. In addition, the heater 60 of this embodiment adopts an ultra-thin electric heating sheet, which makes the structure of the handheld heating stirrer more compact. The ultra-thin electric heating sheet can be made of graphene film, copper sheet, aluminum sheet, stainless steel sheet, tungsten and other materials. The ultra-thin electric heating sheet generates heat after being energized, and the heat is then transferred to the liquid food in the container through the heat conducting plate 50, with high heating efficiency.

[0036] Please refer to Figure 2 and Figure 3 The transmission mechanism 20 of this embodiment includes a transmission shaft 21 and a fastener 22 arranged at the end of the transmission shaft 21. The fastener 22 is used to fix the stirring blade 31. The fastener 22 of this embodiment is a bolt, which is easy to install and has good structural stability after installation. Of course, the use of bolts is only a preferred implementation method. In other embodiments, buckles, screws, etc. can also be used for fixing, and it is not limited to the bolt fixing of this embodiment.

[0037] Please refer to Figure 3The stirring mechanism 30 includes at least one stirring blade 31 fixed to the end of the transmission shaft 21 by a fastener 22, and a sleeve 32 sleeved on the outside of the transmission shaft 21. The heat conducting plate 50, the protective cover 40, and the shell 10 are all fixedly connected to the sleeve 32. The sleeve 32 includes a main body and an extension connected to the upper end of the main body. The extension is provided with an external thread. The shell 10 is threadedly connected to the extension of the sleeve 32 to facilitate the disassembly and assembly of the two. The upper and lower ends of the main body of the sleeve 32 are respectively provided with a first mounting groove and a second mounting groove. The protective cover 40 is fixed to the first mounting groove, and the heat conducting plate 50 is fixed to the second mounting groove. Through such an installation method, each component can be disassembled and assembled, reducing the difficulty of assembly.

[0038] Furthermore, a bearing 33 is disposed in the shaft sleeve 32 , and the bearing 33 is sleeved on the transmission shaft 21 , thereby reducing the friction of the transmission shaft 21 and making the rotation of the transmission shaft 21 smoother.

[0039] Furthermore, an elastic seal 34 is provided in the shaft sleeve 32, and the elastic seal 34 is located between the bearing 33 and the stirring blade 31. Gaskets 36 are provided at the upper and lower ends of the stirring blade 31. The elastic seal 34 is made of food-grade elastic materials such as silicone and TPE, and has good elasticity. One end of the elastic seal 34 has an interference fit with the shaft sleeve 32, and the other end elastically contacts with the gasket 36, thereby improving the sealing effect of the end of the shaft sleeve 32 and preventing liquid food or solid food from entering the interior of the shaft sleeve 32 from the gap between the shaft sleeve 32 and the transmission shaft 21.

[0040] Furthermore, a sealing ring 35 is provided between the shell 10 and the sleeve 32 . The sealing ring 35 can be made of food-grade elastic materials such as silicone and TPE, thereby improving the sealing effect between the shell 10 and the sleeve 32 and preventing liquid or solid food from entering the interior of the shell 10 .

[0041] Please refer to Figure 1 The protective cover 40 is provided with a plurality of notches 41, through which liquid food or solid food can enter and exit, so as to be easily stirred, crushed or heated.

[0042] The preferred implementation methods of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A hand-held heating stirrer, comprising a housing (10), a transmission mechanism (20) disposed in the housing (10), a stirring mechanism (30) connected to the transmission mechanism (20), and a protective cover (40) sleeved on the outside of the stirring mechanism (30), characterized in that: The transmission mechanism (20) comprises a transmission shaft (21), the transmission shaft (21) is sleeved with a shaft sleeve (32), the shaft sleeve (32) is connected to a heat conducting plate (50), a closed inner cavity (42) is formed between the heat conducting plate (50) and the protective cover (40), a heater (60) is arranged in the inner cavity (42), an inner tube (70) is further arranged in the shell (10), the inner tube (70) is sleeved on the outer side of the transmission shaft (21) and does not rotate with the rotation of the transmission mechanism (20), and a wire (61) of the heater (60) is located in a gap formed by the inner tube (70) and the shell (10).

2. A handheld heating blender according to claim 1, characterized in that: The heater (60) is arranged on the upper end surface of the heat conducting plate (50), and the heater (60) is an ultra-thin electric heating sheet.

3. A handheld heating blender according to claim 2, characterized in that: The ultra-thin electric heater is a printed metal film with a thickness not exceeding 2 mm.

4. A handheld heating blender according to claim 1, characterized in that: The outer side surface of the inner tube (70) is provided with a wire groove (71), and the wire (61) of the heater (60) is inserted into the wire groove (71).

5. A handheld heating blender according to claim 1, characterized in that: The transmission mechanism (20) further comprises a fastener (22), wherein the fastener (22) is arranged at the end of the transmission shaft (21); the stirring mechanism (30) further comprises at least one stirring blade (31) fixed to the end of the transmission shaft (21) via the fastener (22), and the protective cover (40) and the housing (10) are both fixedly connected to the shaft sleeve (32).

6. A handheld heating blender according to claim 5, characterized in that: A bearing (33) and an elastic seal (34) are also provided in the shaft sleeve (32); the bearing (33) is sleeved on the transmission shaft (21); and the elastic seal (34) is located between the bearing (33) and the stirring blade (31).

7. A hand-held heating blender according to claim 6, characterized in that: The housing (10) is threadedly connected to the shaft sleeve (32).

8. A handheld heating blender according to claim 6, characterized in that: A sealing ring (35) is also provided between the housing (10) and the shaft sleeve (32).

9. A handheld heating blender according to claim 6, characterized in that: Gaskets (36) are provided at both upper and lower ends of the stirring blade (31); one end of the elastic sealing member (34) is interference-fitted with the shaft sleeve (32), and the other end elastically contacts the gasket (36).

10. A hand-held heating blender according to claim 1, characterized in that: The protective cover (40) is provided with a plurality of notches (41).

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