A quick-release structure of a grinder blade

CN224892443UActive Publication Date: 2026-10-27陈士青
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Patent Information

Application Number
CN202522354715.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-06
Publication Date
2026-10-27
Estimated Expiration
2035-11-06

AI Technical Summary

Technical Problem

[0003]针对电动磨豆机,现有磨豆机或研磨机的装配结构通常较为复杂,涉及弹簧、垫片、刀盘托等多种零件,这些零件不仅增加了装配难度,而且在清洁和更换刀盘时容易导致安装错误或零件丢失,影响产品的正常使用和寿命

Benefits of technology

该磨豆机刀盘快拆结构,通过刀盘、弹簧、垫片、螺丝的配合设置,可以简化装配,刀盘拆卸时,使用内六角直角扳手卸掉螺丝,即可向下取下刀盘。刀盘通过单螺丝固定,极大简化了刀盘的安装和拆卸过程,提高了用户体验。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of quick-release structure of cutter head of bean grinder, including tool holder, inner ring, cutter head, spring, gasket, bean grinder, the inside of tool holder is provided with an inner ring, the inside of tool holder is provided with cutter head, the cutter head adopts heteromorphy symmetry structure, the tool holder is the component part of bean grinder, the top of cutter head is abutted with gasket, the top of gasket is fixedly connected with spring, the spring, gasket are fixedly connected in the inside of bean grinder rotating shaft, the cutter head is hollow structure.The utility model has the advantages that: by the cooperation of cutter head, spring, gasket, screw, assembly can be simplified, when cutter head is disassembled, use hexagonal straight wrench to remove screw, then cutter head can be taken down downward.Cutter head is fixed by single screw, greatly simplifies the installation and disassembly process of cutter head, improves user experience, can reduce error, eliminates product quality problem caused by multiple parts assembly error, reduces the risk of product damage or failure.
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Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a quick-release structure for the burr disc of a coffee grinder. Background Technology

[0002] A coffee grinder grinds coffee beans into the desired coarseness using rotating blades or a conical grinding disc. The main components include the grinding disc, grinding disc base, motor, coffee bean container, and control panel. When coffee beans are poured into the grinding disc, the motor starts and rotates the disc, crushing and grinding the beans into particles. Coffee grinders are mainly divided into manual and electric types.

[0003] For electric coffee grinders, the existing assembly structure of coffee grinders or grinders is usually quite complex, involving a variety of parts such as springs, washers, and blade holders. These parts not only increase the difficulty of assembly, but also easily lead to installation errors or loss of parts when cleaning and replacing the blades, affecting the normal use and lifespan of the product. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to propose a quick-release structure for the burr disc of a coffee grinder, so as to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of the present invention provides a quick-release structure for a coffee grinder blade, including a blade holder, an inner ring, a blade disc, a spring, a gasket, and a coffee grinder. The blade holder has an inner ring inside and a blade disc inside. The blade disc has an irregular symmetrical structure, and the blade holder is a component of the coffee grinder. The top of the blade is abutted against a pad, and a spring is fixedly connected to the top of the pad. The spring and the pad are fixedly connected inside the grinder shaft. The blade disc has a hollow structure, and a screw passes through the blade disc. The bottom end of the screw has an internal hex head, and the screw is threaded to the shaft of the coffee grinder.

[0007] Preferably, in any of the above embodiments, there is a gap between the edge of the cutter head and the inner side of the inner ring.

[0008] The above technical solution is adopted: the core structure of this new type of coffee grinder with quick-release blade is blade, spring, washer, and screw.

[0009] Its core features include: a new cutter head design with a hollow cutter head that is fixed to the shaft by a single screw. When tightened, the spring is compressed, and the washer presses against the top surface of the cutter head, making the cutter head more secure. The cutter head adopts a unidirectional non-rotatable structure, eliminating the possibility of the cutter head rotating on the shaft.

[0010] By fixing the spring and washer inside the grinder's shaft structure, a non-removable fixed structure is formed, reducing the use of external parts.

[0011] The cutter head adopts a non-circular, irregularly symmetrical structure to achieve coaxial fixation between the cutter head and the rotating shaft, eliminating the need for the traditional positioning cutter head support.

[0012] The cutter head can be installed and fixed with only one fixing screw, eliminating the complicated alignment and multi-part assembly process.

[0013] Assembly is simplified; when disassembling the cutter head, simply use an Allen wrench to remove the screws, and the cutter head can be removed downwards. The cutter head is secured with a single screw, greatly simplifying the installation and disassembly process and improving the user experience.

[0014] Reducing errors eliminates product quality problems caused by incorrect assembly of multiple parts, and lowers the risk of product damage or failure.

[0015] It improves efficiency by simplifying inspection and debugging procedures during production, thereby increasing production efficiency and product quality. It also protects the product: the innovative structural design extends product lifespan and reduces maintenance costs.

[0016] Preferably, in any of the above embodiments, the cutter head is conical in shape and its top area is smaller than its bottom area, and the cutter head is made of stainless steel.

[0017] When the coffee grinder is working, there is a motor inside the grinder. Its output end drives the shaft to rotate at high speed. Screws are used to fix the burr to the shaft. The burr is fixed to the shaft by tightening a single screw. When tightened, the spring is compressed and the washer presses against the top surface of the burr, making the burr more secure. When the burr rotates at high speed, it grinds the coffee beans in conjunction with the inner ring. The coffee bean powder falls into the chamber below through the gap between the inner ring and the burr.

[0018] Preferably, in any of the above solutions, the blade disc is coaxially fixed with the rotating shaft of the coffee grinder.

[0019] Preferably, in any of the above solutions, the end of the screw is tightened onto the bottom surface of the cutter head.

[0020] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows: This coffee grinder features a quick-release burr mechanism. The combination of the burr, spring, washer, and screw simplifies assembly. To remove the burr, simply use an Allen wrench to remove the screw and then lift the burr downwards. The burr is secured with a single screw, greatly simplifying the installation and removal process and improving the user experience.

[0021] It can reduce errors, eliminate product quality problems caused by incorrect assembly of multiple parts, and reduce the risk of product damage or failure.

[0022] It can improve efficiency, simplify inspection and debugging procedures in the production process, and improve production efficiency and product quality. It also protects the product: the innovative structural design extends the product's lifespan and reduces maintenance costs.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a structural schematic diagram of the present invention from a second perspective; Figure 3 This is a schematic diagram of the overall structure of a coffee grinder.

[0025] In the diagram: 1-blade holder, 2-inner ring, 3-blade disc, 4-spring, 5-washer, 6-coffee grinder, 7-screw. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] like Figure 1-3 As shown, the quick-release structure of this coffee grinder includes a blade holder 1, an inner ring 2, a blade 3, a spring 4, a gasket 5, and a coffee grinder 6. The blade holder 1 has an inner ring 2 inside, and the blade 3 is installed inside the blade holder 1. The blade 3 adopts an irregular symmetrical structure. The blade holder 1 is a component of the coffee grinder 6. The top of the blade 3 abuts against a pad 5, and a spring 4 is fixedly connected to the top of the pad 5. The spring 4 and the pad 5 are fixedly connected inside the shaft of the grinder 6. The blade 3 has a hollow structure, and a screw 7 is inserted through the blade 3. The bottom end of the screw 7 has an internal hex head, and this screw 7 is threaded to the shaft of the grinder 6.

[0029] Example 1: There is a gap between the edge of the blade disc 3 and the inner side of the inner ring 2. The core structure of this new quick-release blade disc structure for a coffee grinder consists of the blade disc 3, spring 4, washer 5, and screw 7. A new hollow blade disc 3 design is adopted, and it is fixed to the rotating shaft by tightening a single screw 7. When tightened, the spring 4 is compressed, and the washer 5 presses against the top surface of the blade disc 3, making the blade disc 3 more secure. The blade disc 3 adopts a unidirectional, non-rotatable structure, eliminating the possibility of rotation of the blade disc 3 on the rotating shaft.

[0030] Example 2: The spring 4 and the washer 5 are fixed inside the shaft structure of the coffee grinder 6 to form a non-removable fixed structure, reducing the use of external parts.

[0031] The cutter head 3 adopts a non-circular, irregularly symmetrical structure to achieve coaxial fixation between the cutter head 3 and the rotating shaft, eliminating the need for the traditional positioning cutter head support.

[0032] The installation and fixing of the burr head 3 requires only one fixing screw 7, eliminating the need for complex alignment and multi-part assembly. The burr head 3 is conical in shape with its top area smaller than its bottom area, and is made of stainless steel. The burr head 3 is coaxially fixed to the shaft of the grinder 6. The end of the screw 7 is tightened onto the bottom surface of the burr head 3.

[0033] The working principle of this utility model is as follows: When the coffee grinder 6 is working, the internal motor drives the rotating shaft to rotate at high speed. The screw 7 is used to fix the burr 3 to the rotating shaft. The burr 3 is fixed to the rotating shaft by tightening the single screw 7. When tightened, the spring 4 is compressed and the washer 5 presses against the top surface of the burr 3, making the burr 3 more secure. When the burr 3 rotates at high speed, it grinds the coffee beans in conjunction with the inner ring 2. The coffee bean powder falls into the lower chamber through the gap between the inner ring 2 and the burr 3.

[0034] Compared with the prior art, the present invention has the following advantages: This coffee grinder features a quick-release burr mechanism. Through the coordinated arrangement of the burr 3, spring 4, washer 5, and screw 7, assembly is simplified. To remove the burr 3, simply use an Allen wrench to remove screw 7, and then detach the burr 3 downwards. The burr 3 is secured by a single screw 7, greatly simplifying the installation and removal process and improving the user experience.

[0035] It can reduce errors, eliminate product quality problems caused by incorrect assembly of multiple parts, and reduce the risk of product damage or failure.

[0036] It can improve efficiency, simplify inspection and debugging procedures in the production process, and improve production efficiency and product quality. It also protects the product: the innovative structural design extends the product's lifespan and reduces maintenance costs.

Claims

1. A quick-release structure for the burr disc of a coffee grinder, characterized in that, The machine includes a blade holder (1), an inner ring (2), a blade disc (3), a spring (4), a gasket (5), and a coffee grinder (6). The blade holder (1) has an inner ring (2) inside and a blade disc (3) inside. The blade disc (3) has an irregular symmetrical structure. The blade holder (1) is a component of the coffee grinder (6). The top of the blade (3) is abutted against a pad (5), and a spring (4) is fixedly connected to the top of the pad (5). The spring (4) and the pad (5) are fixedly connected inside the rotating shaft of the grinder (6). The blade (3) has a hollow structure, and a screw (7) is inserted through the blade (3). The bottom end of the screw (7) has an internal hex head, and the screw (7) is threadedly connected to the shaft of the grinder (6).

2. The quick-release structure for the grinder blade as described in claim 1, characterized in that: There is a gap between the edge of the cutter head (3) and the inner side of the inner ring (2).

3. The quick-release structure for the grinder blade as described in claim 2, characterized in that: The cutter head (3) is cone-shaped and its top area is smaller than its bottom area. The material of the cutter head (3) is stainless steel.

4. The quick-release structure for the coffee grinder burr as described in claim 3, characterized in that: The blade (3) is fixed coaxially with the shaft of the grinder (6).

5. The quick-release structure for the grinder blade as described in claim 4, characterized in that: The end of the screw (7) is tightened onto the bottom surface of the cutter head (3).