Stirring rod assembly and handheld stirrer

Abstract

The utility model relates to the technical field of handheld stirrers, in particular to a stirring rod assembly which comprises a stirring head cover, a first cutter assembly and a second cutter assembly are arranged in the stirring head cover, the first cutter assembly and the second cutter assembly are located on different planes, and the first cutter assembly and the second cutter assembly do not intersect. The first cutter assembly is rotatably arranged in the stirring head cover, and the second cutter assembly is fixedly arranged in the stirring head cover. According to the arrangement, the upper-layer cutter assembly and the lower-layer cutter assembly are arranged in the stirring head cover, the second cutter assembly is fixedly arranged in the stirring head cover, and the first cutter assembly is rotatably arranged in the stirring head cover, so that when the first cutter assembly rotates, the second cutter assembly is static and does not rotate, and the first cutter assembly and the second cutter assembly can form a shearing effect; the food material is fully cut, the stirring efficiency is effectively improved, the structure is simple, assembling is convenient, cost is low, only the first cutter assembly rotates, noise is low, and the practical value is high.

Description

Technical Field

[0001] The utility model relates to the technical field of handheld blenders, in particular to a stirring rod assembly and a handheld blender. Background Art

[0002] The blade assembly of a traditional handheld blender usually uses a single-layer blade assembly to cut food, which has a single cutting method for ingredients. A considerable portion of the space inside the mixing head cover does not fully participate in the cutting movement, and the ingredients are only processed along a cutting speed trajectory, resulting in low cutting efficiency.

[0003] The utility model patent with announcement number CN218074649U discloses a stirring structure with dual stirring, including a stirring cover with a hollow interior and openings at both ends, a first stirring shaft rotatable relative to the stirring cover, a first stirring blade disposed at the lower portion of the first stirring shaft, a second stirring shaft disposed at the lower portion of the second stirring shaft, and a driving mechanism for driving the first and second stirring shafts to rotate at the upper portion of the stirring cover. The disadvantages of this prior art are that it is complex in structure, cumbersome in assembly, and high in cost. The driving mechanism simultaneously drives the first and second stirring shafts to rotate, thereby driving the first and second stirring blades to rotate synchronously. The shearing effect of the first and second stirring blades is poor, resulting in unsatisfactory stirring efficiency. The dual stirring shafts driving the dual stirring blades to operate are noisy, and the practical value is low.

[0004] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0005] In order to solve the problems of the prior art, the utility model provides a stirring rod assembly, which is achieved by arranging a double-layer knife assembly in the stirring head cover, wherein the second knife assembly is fixedly arranged in the stirring head cover, and the first knife assembly is rotatably arranged in the stirring head cover, so that when the first knife assembly rotates, the second knife assembly is stationary, thereby enabling the first knife assembly to form a shearing effect with the second knife assembly, so that the food is fully cut and the stirring efficiency is effectively improved. It has a simple structure, is easy to assemble, and has a low cost. Only the first knife assembly rotates, so the noise is small and the practical value is high.

[0006] In order to achieve the above-mentioned purpose, the technical solution applied by the present utility model is as follows:

[0007] A stirring rod assembly includes a stirring head cover, wherein a first blade assembly and a second blade assembly are provided in the stirring head cover, wherein the first blade assembly and the second blade assembly are located in different planes and do not intersect with each other; the first blade assembly is rotatably provided in the stirring head cover, and the second blade assembly is fixedly provided in the stirring head cover. This arrangement is such that, by providing an upper and lower layer of blade assemblies in the stirring head cover, wherein the second blade assembly is fixedly provided in the stirring head cover and the first blade assembly is rotatably provided in the stirring head cover, when the first blade assembly rotates, the second blade assembly remains stationary, thereby enabling the first blade assembly and the second blade assembly to form a shearing effect, so that the food is fully cut and the stirring efficiency is effectively improved. The structure is simple, the assembly is convenient, the cost is low, and since only the first blade assembly rotates, the noise is low and the practical value is high.

[0008] According to the above solution, a downwardly protruding boss is formed in the middle of the mixing head cover, the second blade assembly is fixedly connected to the boss, a center hole is formed in the center of the second blade assembly, and the first blade assembly includes a blade shaft, the upper end of the blade shaft extends upward through the center hole of the second blade assembly, so that the first blade assembly and the second blade assembly are coaxially arranged. In this arrangement, the second blade assembly is fixedly arranged on the bottom of the boss in the mixing head cover and is coaxially arranged with the first blade assembly, so that when the first blade assembly and the second blade assembly work together, the shearing effect is stronger.

[0009] According to the above solution, the second knife assembly is fixedly connected to the boss by welding, riveting, or screw connection. This arrangement facilitates assembly, and after assembly, the second knife assembly cannot rotate.

[0010] According to the above solution, the blade of the first blade assembly is formed with a first cutting edge, and the blade of the second blade assembly is formed with a second cutting edge, and the first cutting edge and the second cutting edge are arranged in opposite directions. In this arrangement, when the first blade assembly rotates, the first cutting edge of the first blade assembly can form a shearing effect with the second cutting edge of the second blade assembly, so that the food is fully cut and the mixing efficiency is effectively improved.

[0011] According to the above solution, the blades of the first knife assembly and the blades of the second knife assembly are arranged in parallel or nearly in parallel, so that when the blades of the first knife assembly and the blades of the second knife assembly work together, the shearing effect is stronger and the stirring efficiency is higher.

[0012] According to the above scheme, the spacing between the blades of the first knife assembly and the blades of the second knife assembly is set in the range of 1-40mm. This arrangement allows the blades of the first knife assembly and the blades of the second knife assembly to work together in a small shearing range and achieve a better shearing effect.

[0013] According to the above solution, the stirring rod assembly also includes a connecting tube and a connecting head. The lower end of the connecting tube is fixedly connected to the stirring head cover, and the upper end of the connecting tube is fixedly connected to the connecting head. This arrangement allows the blade shaft of the first blade assembly to pass through the connecting tube and extend into the connecting head during assembly, making it safer to use. The connecting head is used for easy assembly with the main body of the handheld blender.

[0014] According to the above scheme, a pressure cap is provided inside the lower end of the connecting tube, a shock-absorbing pad is provided at the bottom of the pressure cap, a bearing is provided inside the shock-absorbing pad, a pressure block is provided at the bottom of the bearing, the pressure block is fixed on the inner wall of the connecting tube, a sealing ring is provided at the bottom of the pressure block, and the sealing ring is fixed in the boss of the stirring head cover. With this arrangement, during assembly, the upper end of the blade shaft of the first blade assembly passes through the second blade assembly, the boss, the sealing ring, the pressure block, the bearing, the pressure cap, and the connecting tube in sequence and is then provided in the connecting head. The shock-absorbing pad and the bearing are limited in the connecting tube by the pressure cap and the pressure block, and the shock-absorbing pad and the bearing cooperate to achieve a noise reduction effect when the blade shaft is rotating; the sealing ring is limited in the boss of the stirring head cover by the pressure block, the inner wall of the sealing ring is in close contact with the outer wall of the blade shaft, and the outer wall of the sealing ring is in close contact with the inner wall of the boss, which achieves a good sealing effect.

[0015] The hand-held blender described in the present invention comprises a main unit and the above-mentioned stirring rod assembly, wherein the stirring rod assembly is connected to the bottom of the main unit via a connector, and a driving mechanism is provided in the main unit, wherein the driving shaft of the driving mechanism extends downward and is in transmission connection with the upper end of the blade shaft of the first blade assembly. In this arrangement, when working, the stirring rod assembly is installed at the bottom of the main unit, so that the blade shaft of the first blade assembly is in transmission connection with the driving mechanism in the main unit, and the main unit is started, and the driving mechanism drives the first blade assembly to rotate, while the second blade assembly will remain stationary due to being fixedly connected to the boss in the stirring head cover, and since the cutting edges of the first blade assembly and the second blade assembly are arranged in opposite directions, a shearing effect is formed on the cutting edges of the first blade assembly and the second blade assembly, so that the food is fully cut and stirred, and the stirring efficiency is effectively improved.

[0016] Beneficial effects of the utility model:

[0017] The utility model is configured as follows: by arranging upper and lower layers of knife assemblies in the mixing head cover, wherein the second knife assembly is fixedly arranged in the mixing head cover, and the first knife assembly is rotatably arranged in the mixing head cover, so that when the first knife assembly rotates, the second knife assembly is stationary, thereby enabling the first knife assembly to form a shearing effect with the second knife assembly, so that the food is fully cut, and the mixing efficiency is effectively improved. It has a simple structure, is easy to assemble, and has a low cost. In addition, only the first knife assembly rotates, so the noise is small and the practical value is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of a stirring rod assembly of the utility model;

[0019] Figure 2 This is a schematic diagram of the interior of the stirring head cover of the utility model;

[0020] Figure 3 This is a cross-sectional view of a handheld blender of the present utility model;

[0021] Figure 4 This is an exploded view of a handheld blender of the present utility model.

[0022] In the picture:

[0023] 1. Main unit; 2. Stirring rod assembly; 21. Stirring head cover; 22. Boss; 23. Connecting pipe; 24. Connecting head; 3. First knife assembly; 30. First cutting edge; 31. Knife shaft; 4. Second knife assembly; 40. Second cutting edge; 41. Center hole; 8. Pressure cover; 9. Shock pad; 10. Bearing; 11. Pressure block; 12. Sealing ring; 13. Driving mechanism. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model is described below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1 and Figure 2 As shown, the stirring rod assembly described in the present invention comprises a stirring head cover 21, wherein a first blade assembly 3 and a second blade assembly 4 are provided in the stirring head cover 21, wherein the first blade assembly 3 and the second blade assembly 4 are located in different planes, and the first blade assembly 3 and the second blade assembly 4 do not intersect; the first blade assembly 3 is rotatably provided in the stirring head cover 21, and the second blade assembly 4 is fixedly provided in the stirring head cover 21. In this arrangement, by providing an upper and lower layer of blade assemblies in the stirring head cover 21, wherein the second blade assembly 4 is fixedly provided in the stirring head cover 21, and the first blade assembly 3 is rotatably provided in the stirring head cover 21, when the first blade assembly 3 rotates, the second blade assembly 4 does not rotate, thereby enabling the first blade assembly 3 to form a shearing effect with the second blade assembly 4, so that the food is fully cut, and the stirring efficiency is effectively improved. The structure is simple, the assembly is convenient, the cost is low, and only the first blade assembly 3 rotates, so the noise is low and the practical value is high.

[0026] Furthermore, a downwardly protruding boss 22 is formed in the middle of the mixing head cover 21, and the second blade assembly 4 is fixedly connected to the bottom of the boss 22. A center hole 41 is formed in the center of the second blade assembly 4. The first blade assembly 3 includes a blade shaft 31, and the upper end of the blade shaft 31 extends upward through the center hole 41 of the second blade assembly 4, so that the first blade assembly 3 and the second blade assembly 4 are coaxially arranged. In this arrangement, the second blade assembly 4 is fixedly arranged on the bottom of the boss 22 in the mixing head cover 21 and is coaxially arranged with the first blade assembly 3, so that when the first blade assembly 3 and the second blade assembly 4 work together, the shearing effect is stronger.

[0027] Furthermore, the second blade assembly 4 is fixedly connected to the bottom of the boss 22 by welding, riveting, or screw connection. This arrangement facilitates assembly, and after assembly, the second blade assembly 4 cannot rotate.

[0028] Specifically, the blade of the first blade assembly 3 is formed with a first cutting edge 30, and the blade of the second blade assembly 4 is formed with a second cutting edge 40, with the first cutting edge 30 and the second cutting edge 40 being arranged in opposite directions. With this arrangement, when the first blade assembly 3 rotates, the first cutting edge 30 of the first blade assembly 3 and the second cutting edge 40 of the second blade assembly 4 can form a shearing effect, so that the food is fully cut and the mixing efficiency is effectively improved.

[0029] Furthermore, the blades of the first blade assembly 3 and the blades of the second blade assembly 4 are arranged in parallel, or are nearly parallel, so that when the blades of the first blade assembly 3 and the blades of the second blade assembly 4 work together, the shearing effect is stronger and the stirring efficiency is higher.

[0030] Furthermore, the spacing between the blades of the first knife assembly 3 and the blades of the second knife assembly 4 is set in the range of 1-40mm. This arrangement allows the blades of the first knife assembly 3 and the blades of the second knife assembly 4 to work together in a small shearing range and achieve a better shearing effect.

[0031] Furthermore, the stirring rod assembly 2 further includes a connecting tube 23 and a connecting head 24. The lower end of the connecting tube 23 is fixedly connected to the stirring head cover 21, and the upper end of the connecting tube 23 is fixedly connected to the connecting head 24. This arrangement allows the blade shaft 31 of the first blade assembly 3 to pass through the connecting tube 23 and extend into the connecting head 24 during assembly, making it safer to use. The connecting head 24 is used for easy assembly with the main body 1 of the handheld blender.

[0032] Specifically, a gland 8 is provided inside the lower end of the connecting tube 23, a shock-absorbing pad 9 is provided at the bottom of the gland 8, a bearing 10 is provided inside the shock-absorbing pad 9, a pressure block 11 is provided at the bottom of the bearing 10, the pressure block 11 is fixed to the inner wall of the connecting tube 23, a sealing ring 12 is provided at the bottom of the pressure block 11, and the sealing ring 12 is fixed inside the boss 22 of the mixing head cover 21. With this arrangement, during assembly, the upper end of the blade shaft 31 of the first blade assembly 3 passes through the second blade assembly 4, the boss 22, the sealing ring 12, the pressure block 11, the bearing 10, the gland 8, and the connecting tube 23 in sequence, and is then placed inside the connector 24. Among them, the shock-absorbing pad 9 and the bearing 10 are limited in the connecting tube 23 by the pressure cover 8 and the pressure block 11, and the shock-absorbing pad 9 and the bearing 10 cooperate to achieve a noise reduction effect when the knife shaft 31 is rotating; the sealing ring 12 is limited in the boss 22 of the stirring head cover 21 by the pressure block 11, and the inner wall of the sealing ring 12 is in close contact with the outer wall of the knife shaft 31, and the outer wall of the sealing ring 12 is in close contact with the inner wall of the boss 22, which has a good sealing effect.

[0033] like Figure 3 and Figure 4 As shown, the hand-held blender described in the present invention comprises a main body 1 and the above-mentioned stirring rod assembly 2, the stirring rod assembly 2 being connected to the bottom of the main body 1 via a connector 24, a driving mechanism 13 being provided in the main body 1, the driving shaft of the driving mechanism 13 extending downward and being in transmission connection with the upper end of the blade shaft 31 of the first blade assembly 3. With such an arrangement, when working, the stirring rod assembly 2 is installed at the bottom of the main body 1, so that the blade shaft 31 of the first blade assembly 3 is in transmission connection with the driving mechanism 13 in the main body 1, the main body 1 is started, the driving mechanism 13 drives the first blade assembly 3 to rotate, and the second blade assembly 4 will remain stationary due to being fixedly connected to the stirring head cover 21, and since the cutting edges of the first blade assembly 3 and the second blade assembly 4 are arranged in opposite directions, the cutting edges of the first blade assembly 3 and the second blade assembly 4 form a shearing effect, so that the food is fully cut and stirred, and the stirring efficiency is effectively improved.

[0034] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A stirring rod assembly, characterized in that: The stirring rod assembly (2) comprises a stirring head cover (21), wherein a first blade assembly (3) and a second blade assembly (4) are provided in the stirring head cover (21), wherein the first blade assembly (3) and the second blade assembly (4) are located in different planes, and the first blade assembly (3) and the second blade assembly (4) do not intersect; The first blade assembly (3) is rotatably arranged in the stirring head cover (21), and the second blade assembly (4) is fixedly arranged in the stirring head cover (21).

2. The stirring rod assembly according to claim 1, characterized in that: A downwardly protruding boss (22) is formed in the middle of the stirring head cover (21), the second knife assembly (4) is fixedly connected to the boss (22), a center hole (41) is formed in the center of the second knife assembly (4), and the first knife assembly (3) includes a knife shaft (31), the upper end of the knife shaft (31) passes through the center hole (41) of the second knife assembly (4) and extends upward, so that the first knife assembly (3) and the second knife assembly (4) are coaxially arranged.

3. The stirring rod assembly according to claim 2, characterized in that: The second knife assembly (4) and the boss (22) are fixedly connected by welding, riveting, or threaded connection.

4. The stirring rod assembly according to claim 2, characterized in that: A first cutting edge (30) is formed on the blade of the first knife assembly (3), and a second cutting edge (40) is formed on the blade of the second knife assembly (4), and the first cutting edge (30) and the second cutting edge (40) are arranged in opposite directions.

5. The stirring rod assembly according to claim 2, characterized in that: The blade of the first knife assembly (3) and the blade of the second knife assembly (4) are arranged in parallel, or are nearly arranged in parallel.

6. The stirring rod assembly according to claim 2, characterized in that: The spacing between the blade of the first knife assembly (3) and the blade of the second knife assembly (4) is set in the range of 1-40 mm.

7. The stirring rod assembly according to claim 2, characterized in that: The stirring rod assembly (2) further comprises a connecting pipe (23) and a connecting head (24); the lower end of the connecting pipe (23) is fixedly connected to the stirring head cover (21); and the upper end of the connecting pipe (23) is fixedly connected to the connecting head (24).

8. The stirring rod assembly according to claim 7, characterized in that: A pressure cover (8) is provided inside the lower end of the connecting tube (23), a shock-absorbing pad (9) is provided at the bottom of the pressure cover (8), a bearing (10) is provided inside the shock-absorbing pad (9), a pressure block (11) is provided at the bottom of the bearing (10), the pressure block (11) is fixed on the inner wall of the connecting tube (23), a sealing ring (12) is provided at the bottom of the pressure block (11), and the sealing ring (12) is fixed in the boss (22) of the stirring head cover (21).

9. A hand-held blender, characterized in that: The invention comprises a main unit (1) and a stirring rod assembly (2) as described in any one of claims 1 to 8, wherein the stirring rod assembly (2) is connected to the bottom of the main unit (1) via a connector (24), and a driving mechanism (13) is provided in the main unit (1), wherein the driving shaft of the driving mechanism (13) extends downward and is in transmission connection with the upper end of the knife shaft (31) of the first knife assembly (3).

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