Cutter quick disassembly and assembly structure and kitchen household appliance with cutter quick disassembly and assembly structure

Abstract

The utility model discloses a cutter quick disassembly and assembly structure and a kitchen appliance with the same, the cutter quick disassembly and assembly structure comprises a spiral convex rib and a spiral groove matched with the spiral convex rib, and the spiral convex rib and the spiral groove are correspondingly arranged on a cutter and a connecting sleeve; the rotating direction of the connecting sleeve driven by the spiral protruding rib is opposite to the rotating direction of the cutter in the working process, a gap is formed between the end face of the first end of the connecting sleeve and the root of the spiral protruding rib, and the first end is the end, facing the cutter, of the connecting sleeve. According to the utility model, the cutter and the connecting sleeve are connected through the spiral convex rib and the spiral groove, the rotation directions of the spiral convex rib and the spiral groove are opposite to the rotation direction of the cutter during working, and the spiral convex rib and the spiral groove are in a screwing state during working of the cutter and are reliably connected with the motor assembly; and after work is completed, the cutter can be rapidly detached for cleaning, operation is convenient, and safety and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a quick disassembly and assembly structure for a cutter and a kitchen appliance with the structure. Background Art

[0002] Kitchen appliances such as blenders, meat grinders, household flour mills, and chef machines drive cutters through motor components to break materials in containers.

[0003] Currently, the connection structure between the cutter and the motor component of such kitchen appliances is usually non-detachable, which is not conducive to thorough cleaning of the cutter. In addition, in most cases, a shaft hole is provided at the center of the inner cavity bottom of the container, and the lower end of the cutter is rotatably arranged in the shaft hole to maintain the stability of the cutter rotation. For this reason, the overall length of the cutter is relatively long, increasing the cost. Summary of the Utility Model

[0004] Aiming at the above defects, the technical problem to be solved by the utility model is to provide a quick disassembly and assembly structure for a cutter and a kitchen appliance with the structure, so as to solve the problems of non-detachable cutters and high costs in the prior art.

[0005] For this purpose, the first aspect of the embodiments of the present application provides a quick disassembly and assembly structure for a cutter, including a spiral rib and a spiral groove matching with the spiral rib, which are correspondingly arranged on the cutter and the connecting sleeve. The rotation direction of the spiral rib driving the connecting sleeve is opposite to the rotation direction of the cutter during operation. A first gap is provided between the end face of the spiral groove and the root of the spiral rib for relative movement between the connecting sleeve and the connecting end, so that the spiral groove and the spiral rib are disengaged.

[0006] Based on the above technical solutions, a spiral rib and a spiral groove matching with the spiral rib are respectively provided on the cutter and the connecting sleeve. The rotation directions of the spiral rib and the spiral groove are opposite to the rotation direction of the cutter during operation. The cutter can be reliably connected to the motor component during operation and can be quickly disassembled for cleaning after the operation is completed, which is convenient to use, safe and reliable.

[0007] In the above technical solution, preferably, the cutter includes a cutter shaft, and the spiral rib is arranged on the outer circumferential surface of the connecting end of the cutter shaft along the axial direction of the cutter shaft. In this implementation, the diameter of the connecting end of the cutter shaft is small, which is convenient for processing and has low cost.

[0008] In the above technical solution, preferably, the spiral groove is provided at the first end of the connecting sleeve. The second end of the connecting sleeve is provided with a first shaft hole matching the drive shaft of the motor assembly. At least two first convex ribs are provided on the inner wall of the first shaft hole, and at least two second convex ribs are provided on the drive shaft of the motor assembly. There is a circumferential gap between the side surfaces of the first convex rib and the second convex rib, and the first convex rib and the second convex rib cooperate with each other to drive the connecting sleeve to rotate. The connection mode between the connecting sleeve and the motor assembly has a simple structure and retains the rotation space of the connecting sleeve.

[0009] In the above technical solution, preferably, the motor assembly is composed of a motor and a speed reducer. The drive shaft of the speed reducer constitutes the drive shaft of the motor assembly. A through hole is provided in the center of the end cover of the speed reducer. A first bearing and a second bearing are provided on the inner wall of the through hole at intervals. The connecting sleeve is rotationally matched with the first bearing, and the first end of the connecting sleeve extends out of the end cover and the base. The drive shaft is rotationally matched with the second bearing. An outer flange is provided at the end of the second end of the connecting sleeve. The outer flange is arranged between the first bearing and the second bearing and can move axially. In this solution, not only does the connecting sleeve rotate smoothly, but also the axial movement space of the connecting sleeve is retained, ensuring the locking and unlocking between the spiral ribs and the spiral grooves.

[0010] In the above technical solution, preferably, the spiral groove and the first shaft hole are separated by a partition plate.

[0011] In the second aspect of the embodiments of the present application, a kitchen appliance is provided, including a base and a container. A motor assembly is provided in the base. The cutter is detachably connected to the drive shaft of the motor assembly through a connecting sleeve, and the detachable connection adopts the above-mentioned cutter quick disassembly and assembly structure. In this solution, the cutter can be quickly disassembled and assembled, which is convenient to remove the cutter for thorough cleaning, avoiding the growth of bacteria in the kitchen appliance and ensuring safe and reliable use.

[0012] In the above technical solution, preferably, the container is arranged below the base. A sealing ring is provided at the connecting end of the base. This can prevent the broken materials from leaking out during use and keep the working environment clean and tidy.

[0013] In the above technical solution, preferably, the container is arranged above the base. A first magnet is fixedly provided on the end face of the partition plate facing the first shaft hole, and a second magnet is embedded in the center of the connecting end of the cutter shaft. This method is applied to the case where the container is arranged below the base. The length of the cutter can be shorter, saving materials. In addition, the suction force of the first magnet and the second magnet ensures that the cutter will not fall off, ensuring the safety of use.

[0014] In the above technical solution, preferably, the kitchen appliance is a blender, a meat grinder, a household flour mill or a chef machine.

[0015] As can be seen from the above technical solution, the quick-disassembly structure of the cutter and the kitchen appliance having the structure provided by the present invention solve the problems of non-detachable cutter, incomplete cleaning and high cost in the prior art. Compared with the prior art, the present invention has the following beneficial effects:

[0016] The cutter and the connecting sleeve are connected by spiral ribs and spiral grooves. The rotation directions of the spiral ribs and the spiral grooves are opposite to the rotation direction of the cutter during operation. During the operation of the cutter, the spiral ribs and the spiral grooves are in a tightened state and are reliably connected to the motor assembly. After the operation is completed, the cutter can be quickly disassembled for cleaning, with convenient operation, safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce and explain the drawings required for the description of the embodiments of the present invention or the prior art. Obviously, the drawings in the following description are only partial embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Schematic diagram of Embodiment 1 of the kitchen appliance provided by the present invention;

[0019] Figure 2 For Figure 1 exploded structural schematic diagram of the kitchen appliance shown;

[0020] Figure 3 For Figure 1 sectional view of the kitchen appliance shown;

[0021] Figure 4 Schematic diagram of the cutter in the present invention;

[0022] Figure 5 For Figure 3 enlarged view of Part A in;

[0023] Figure 6 Schematic diagram of the connecting sleeve in the present invention;

[0024] Figure 7 For Figure 6 schematic diagram of the connecting sleeve shown in the rear view direction;

[0025] Figure 8 For Figure 6 sectional view of the connecting sleeve shown;

[0026] Figure 9 Schematic diagram of the assembly relationship among the tool, the connecting sleeve and the motor assembly in the present utility model;

[0027] Figure 10 Schematic diagram of Embodiment 2 of the kitchen appliance provided by the present utility model;

[0028] Figure 11 is Figure 10 exploded structural schematic diagram of the kitchen appliance shown;

[0029] Figure 12 is Figure 10 sectional view of the kitchen appliance shown;

[0030] Figure 13 is Figure 12 enlarged view of Part B in

[0031] Figures 1 - 13 In

[0032] Base 10, container 20, motor assembly 30, tool 40, connecting sleeve 50, sealing ring 60;

[0033] Drive shaft 31, second convex rib 32, end cover 33, first bearing 34, second bearing 35;

[0034] Tool shaft 41, spiral convex rib 42, second magnet 43;

[0035] Spiral groove 51, first shaft hole 52, first convex rib 53, outer flange 54, partition 55, first magnet 56. Detailed implementation manners

[0036] Next, the technical solutions of the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings of the embodiments of the present utility model. Obviously, the following described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0037] In order to make a clearer explanation and illustration of the technical solutions and implementation manners of the present utility model, several preferred specific embodiments for implementing the technical solutions of the present utility model are introduced below.

[0038] It should be noted that the orientation words such as "inside, outside", "front, back" and "left, right" in this article are expressed based on the product in the use state. Obviously, the use of the corresponding orientation words does not constitute a limitation to the protection scope of the present solution.

[0039] As Figure 1 、 Figure 2 、Figure 3 As shown in the figure, a kitchen appliance provided by the utility model includes a base 10 and a container 20. A motor assembly 30 is provided inside the base 10, and a cutter 40 is detachably connected to the drive shaft of the motor assembly 30 through a connecting sleeve 50. The open end of the container 20 is installed at the connecting end of the base 10, the cutter 40 extends into the container 20, and the motor assembly 30 drives the cutter 40 to rotate to break the materials inside the container 20.

[0040] In the utility model, the kitchen appliance can be a blender, a meat grinder, a household flour mill, a chef machine, etc. Correspondingly, the cutter 40 can be a stirring knife, a breaking knife, a grinding knife, etc.

[0041] Among them, the cutter 40 is detachably connected to the drive shaft of the motor assembly 30 through the connecting sleeve 50 to form a quick disassembly and assembly structure for the cutter. The quick disassembly and assembly structure for the cutter includes a spiral rib and a spiral groove matching the spiral rib. The spiral rib and the spiral groove are correspondingly arranged on the cutter 40 and the connecting sleeve 50, and the rotation direction of the spiral rib driving the connecting sleeve is opposite to the rotation direction of the cutter 40 during operation.

[0042] Embodiment 1.

[0043] In this Embodiment 1, the container 20 is arranged above the base 10. The advantage of this Embodiment 1 is that the length of the cutter 40 is shorter, saving the material cost of the cutter 40.

[0044] This embodiment is described by taking the spiral rib arranged on the cutter 40 as an example. Obviously, arranging the spiral rib on the connecting sleeve 50 can also achieve the functions and technical effects of the utility model.

[0045] Specifically, as Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 shown, the cutter 40 includes a cutter shaft 41, and a spiral rib 42 is arranged along the axial direction on the outer circumferential surface of the connecting end of the cutter shaft 41. The first end of the connecting sleeve 50 is provided with a spiral groove 51 matching the spiral rib 42, the second end of the connecting sleeve 50 is provided with a first shaft hole 52 matching the drive shaft of the motor assembly 30, at least two first convex ribs 53 are arranged on the inner wall of the first shaft hole 52, at least two second convex ribs 32 are arranged on the drive shaft 31 of the motor assembly 30, and there is a circumferential gap between the side surfaces of the first convex rib 53 and the second convex rib 32. The first convex rib 53 and the second convex rib 32 cooperate with each other to drive the connecting sleeve 50 to rotate. Among them, the first end of the connecting sleeve is the end facing the cutter in the assembled state, and the second end is the other end opposite to the first end, that is, the end facing the motor assembly in the assembled state. The first end of the connecting sleeve is used to connect the cutter, and the second end of the connecting sleeve is used to connect the motor assembly.

[0046] In this embodiment, the motor assembly 30 is an integrated structure formed by combining a motor and a speed reducer. The output shaft of the speed reducer constitutes the drive shaft 31 of the motor assembly 30. The center of the end cover 33 of the speed reducer has a through hole. The inner wall of the through hole of the end cover 33 is provided with a first bearing 34 and a second bearing 35 at intervals. The connecting sleeve 50 is rotationally matched with the first bearing 34, and the first end extends out of the end cover 33 and the base 10. The drive shaft 31 is rotationally matched with the second bearing 35. An outer flange 54 is provided at the end of the second end of the connecting sleeve 50. The outer flange 54 is arranged between the first bearing 34 and the second bearing 35 and can move axially.

[0047] A first gap is provided between the end face of the spiral groove and the root of the spiral rib for the relative movement of the connecting sleeve and the connecting end, so that the spiral groove and the spiral rib are disengaged. In this embodiment, a first gap s is provided between the end face of the first end of the connecting sleeve 50 and the root of the spiral rib. The first gap s is 2 to 6 mm. The setting of the first gap s enables the tool 40 to move towards the connecting sleeve 50 when a downward pressing force is applied, causing the connecting sleeve 50 to rotate in reverse, so that the spiral rib and the spiral groove are loosened, facilitating the removal of the tool 40.

[0048] The following takes Figure 4 the state shown to illustrate the working principle of Embodiment 1 in detail.

[0049] The motor assembly 30 drives the connecting sleeve 50 to rotate counterclockwise. Under the cooperation of the spiral groove and the spiral rib, the connecting sleeve 50 drives the tool 40 to rotate clockwise for crushing work, such as mincing meat. At this time, there is a gap s between the upper end (the end face of the first end) of the connecting sleeve 50 and the root of the spiral rib.

[0050] During the crushing work process, the food ingredients generate a downward extrusion force on the tool 40, causing the tool 40 to move downward and maintain a reliable connection with the connecting sleeve 50 and the motor assembly 30.

[0051] After the juicing work is completed, the container 20 is removed. At this time, the spiral rib and the spiral groove between the tool 40 and the connecting sleeve 50 are in a tight fit state, and it is not easy to remove the tool 40. For this reason, the tool 40 is pressed downward. Due to the existence of the first gap s, under the action of the downward pressure, the tool 40 moves downward by a distance of the first gap s towards the connecting sleeve 50, causing the connecting sleeve 50 to rotate slightly in reverse (clockwise rotation), and the spiral rib and the spiral groove are disengaged. Then, when the tool 40 is pulled out upward again, the connecting sleeve 50 can move upward accordingly. When it abuts against the first bearing 16, the connecting sleeve 50 rotates counterclockwise, thereby removing the tool 40.

[0052] It can be seen that in this Embodiment 1, the tool 40 can maintain a reliable connection with the motor assembly 30 during work, and the tool 40 can be quickly disassembled for cleaning after the work is completed, which is convenient to use, safe and reliable.

[0053] Embodiment 2

[0054] In this Embodiment 2, the container 20 is placed below the base 10, and a sealing ring 60 is provided at the connecting end of the base 10. In this operating condition, the tool 40 is likely to fall under the action of gravity. Therefore, based on Embodiment 1, this Embodiment 2 adds a corresponding anti-falling structure.

[0055] As Figure 8 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 As shown in [relevant figures], the spiral groove 51 and the first shaft hole 52 are separated by a partition 55. A first magnet 56 is fixedly provided on the end face of the partition 55 facing the first shaft hole 52. A second magnet 43 is embedded in the center of the connecting end of the tool shaft. The spiral rib 42 is inserted into the spiral groove 51. The second magnet 43 and the first magnet 56 attract each other to axially fix the tool 40 and the connecting sleeve 50, preventing the tool 40 from falling off due to gravity. When removing the tool, only the suction force between the second magnet 43 and the first magnet 56 needs to be overcome, which is convenient for disassembly and assembly and has a simple structure.

[0056] Based on the descriptions of the above specific embodiments, the quick disassembly and assembly structure of the tool provided by the present utility model and the kitchen appliance having this structure have the following advantages compared with the prior art:

[0057] First, the tool and the connecting sleeve are respectively provided with a spiral rib and a spiral groove matching the spiral rib. The rotation direction of the connecting sleeve is opposite to the rotation direction of the tool during operation. The tool can be reliably connected to the motor assembly during operation and can be quickly disassembled for cleaning after the operation is completed, which is convenient to use, safe and reliable.

[0058] Second, a first gap s is provided between the first end of the connecting sleeve and the root of the spiral rib. The setting of this first gap s enables the tool to move towards the connecting sleeve when a downward pressing force is applied, causing the connecting sleeve to slightly reverse and the spiral rib and the spiral groove to loosen, so as to facilitate the removal of the tool.

[0059] Third, a through hole is provided on the end cover of the reducer. First bearings and second bearings are spaced on the inner wall of the through hole. An outer flange is provided at the end of the second end of the connecting sleeve. The outer flange is arranged between the first bearing and the second bearing and can move axially, reserving the rotation space of the connecting sleeve, thereby realizing the quick removal of the tool.

[0060] Finally, it should also be noted that the terms "including", "comprising" or any other variants thereof used in this text are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0061] The present utility model is not limited to the above-mentioned optimal implementation manner. Anyone should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, all fall within the protection scope of the present utility model.

Claims

1. A tool quick disassembly and assembly structure, characterized in that: It includes a spiral rib and a spiral groove matching the spiral rib, which are correspondingly arranged on the tool and the connecting sleeve. The spiral rib drives the connecting sleeve to rotate in a direction opposite to the direction of rotation of the tool when working. A first gap is provided between the end face of the spiral groove and the root of the spiral rib, which is used for relative movement of the connecting end of the connecting sleeve and the tool to loosen the spiral groove and the spiral rib.

2. The tool quick disassembly and assembly structure according to claim 1, characterized in that: The tool comprises a tool shaft, and the spiral rib is arranged on the outer circumferential surface of the connecting end of the tool shaft along the axial direction of the tool shaft.

3. The tool quick disassembly and assembly structure according to claim 2, characterized in that: The spiral groove is arranged at the first end of the connecting sleeve, and the second end of the connecting sleeve is provided with a first axial hole matching the driving shaft of the motor assembly, at least two first ridges are provided on the inner wall of the first axial hole, and at least two second ridges are provided on the driving shaft of the motor assembly, and a circumferential gap is provided between the side surfaces of the first ridge and the second ridge, and the first ridge and the second ridge cooperate with each other to drive the connecting sleeve to rotate.

4. The tool quick disassembly and assembly structure according to claim 3, characterized in that: The spiral groove and the first axial hole are separated by a partition plate.

5. A kitchen appliance, comprising a base and a container, wherein a motor assembly is disposed in the base, and the cutter is detachably connected to a drive shaft of the motor assembly via a connecting sleeve, characterized in that: The detachable connection adopts the tool quick disassembly structure according to any one of claims 1 to 4.

6. The kitchen appliance according to claim 5, characterized in that: The motor assembly is composed of a motor and a reducer. The drive shaft of the reducer constitutes the drive shaft of the motor assembly. The center of the end cover of the reducer has a through hole. The inner wall of the through hole is provided with a first bearing and a second bearing. The connecting sleeve is rotatably matched with the first bearing, and the first end of the connecting sleeve extends out of the end cover and the base. The drive shaft is rotatably matched with the second bearing. The end of the second end of the connecting sleeve is provided with an outer flange. The outer flange is arranged between the first bearing and the second bearing and can move axially.

7. The kitchen appliance according to claim 5, characterized in that: The container is arranged below the base.

8. The kitchen appliance according to claim 5, characterized in that: The container is arranged above the base, the spiral groove and the first axial hole are separated by a partition, a first magnet is fixedly provided on the end surface of the partition facing the first axial hole, and a second magnet is embedded in the center of the connecting end of the knife shaft.

9. The kitchen appliance according to claim 7, characterized in that: A sealing ring is provided at the connecting end of the base.

10. The kitchen appliance according to claim 5, characterized in that: The kitchen appliance is a blender, a meat grinder, a household flour mill or a chef machine.

Images