Spring pressure regulating assembly of grinder and grinding device thereof
By designing a trapezoidal groove in the coffee grinder to fix the position of the spring, the problem of unstable spring pressure adjustment in existing devices is solved, achieving a stable and uniform grinding effect and avoiding wear and tear on accessories and abnormal noise.
Patent Information
- Application Number
- CN202520114046.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing coffee grinder spring pressure adjustment devices lack stable and uniform fixation and support, resulting in poor grinding performance and easy wear and tear on accessories and abnormal noise.
A grinding mill spring pressure adjustment assembly was designed. By nesting a spring on the main shaft and setting a first positioning member and a second positioning member on both sides of the spring, the position of the spring is fixed by using a trapezoidal groove to ensure that the spring does not deviate from the main shaft during the movement, thus providing a stable and uniform pressure.
It achieves stable and uniform rotation grinding of the coffee grinder, avoids wear and tear on accessories and abnormal noise, and improves grinding effect.
Smart Images
Figure CN223830913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee grinding devices, specifically to a grinder spring pressure regulating assembly and its grinding device. Background Technology
[0002] Coffee grinding is the process of crushing roasted coffee beans. Grinding requires a coffee grinder. Existing coffee grinders' spring-loaded pressure adjustment devices do not provide a solid and stable fixation and support for the spring's installation, pressure adjustment, and movement. As a result, they cannot provide uniform rotational grinding pressure to the grinder, leading to poor grinding results. Furthermore, the mismatch between the spring and the accessories can easily cause wear and tear on the accessories and generate abnormal noises, ultimately resulting in product damage. Utility Model Content
[0003] The purpose of this invention is to provide a grinder spring pressure adjustment assembly and its grinding device in order to solve the above-mentioned problems.
[0004] This utility model achieves the above objectives through the following technical solutions:
[0005] This utility model provides a grinding mill spring pressure adjustment assembly, including a main shaft and a spring. The spring is nested on the main shaft, and a first positioning member and a second positioning member are respectively provided on the upper and lower sides of the spring.
[0006] The inner sides of the first positioning member and the second positioning member are respectively provided with a first trapezoidal groove and a second trapezoidal groove for cooperating with the spring;
[0007] The other side of the first positioning member is provided with a third trapezoidal groove for cooperating with the grinding head.
[0008] In some embodiments, the first trapezoidal groove, the second trapezoidal groove, and the third trapezoidal groove are all positive trapezoidal grooves.
[0009] This utility model also provides a grinding device, which further includes an inner sleeve and a long shaft sleeve. The long shaft sleeve is disposed inside the inner sleeve and is connected to the inner wall of the inner sleeve through a connecting plate.
[0010] In some embodiments, the spindle is fitted into the long sleeve, and the upper end of the long sleeve is provided with a third positioning member for supporting the upper part of the spindle, and the second positioning member is provided at the lower end of the long sleeve for supporting the lower part of the spindle.
[0011] In some embodiments, the lower end of the long bushing is provided with a stepped groove, and the other side of the second positioning member is provided as a plane that mates with the stepped groove.
[0012] In some embodiments, the spindle is clearance-fitted with the shaft hole between the spindle and the third positioning member, and the spindle is clearance-fitted with the shaft hole between the spindle and the second positioning member.
[0013] In some embodiments, the second positioning member is tightly fitted with the stepped groove at the lower end of the long shaft sleeve, and the third positioning member is tightly fitted with the upper end of the long shaft sleeve.
[0014] In some embodiments, multiple connecting plates are provided, which are evenly distributed along the circumference of the main shaft.
[0015] In some embodiments, the grinding head includes a connecting sleeve and a grinding body, the connecting sleeve being a two-piece type and connected to the end of the spindle, the end of the spindle being formed with a connecting key, the connecting key being located at the gap between the two-piece connecting sleeve;
[0016] The connecting sleeve mates with the third trapezoidal groove.
[0017] In some embodiments, the grinding body is frustum-shaped, and the lower surface of the grinding body is provided with multiple grinding ridges, which are evenly distributed along the circumference.
[0018] The beneficial effect is that the spring is positioned between the first positioning member and the second positioning member, and the position of the spring is fixed by the first trapezoidal groove and the second trapezoidal groove. When the grinder is used, the spring will always maintain a fixed movement mode and will not deviate or make any bad contact with the spindle, thus providing a stable and uniform pressure for the grinder. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a front view structural diagram of the grinding mill spring pressure adjustment assembly of this utility model;
[0021] Figure 2 yes Figure 1 AA section view;
[0022] Figure 3 This is an exploded view of the grinding spring pressure regulating assembly of this utility model;
[0023] Figure 4 This is a front view of the grinding device of this utility model;
[0024] Figure 5 yes Figure 4 BB cross-sectional view;
[0025] Figure 6 This is a perspective view of the grinding device of this utility model;
[0026] Figure 7 This is an exploded view of the grinding device of this utility model.
[0027] The annotations in the attached figures are explained as follows:
[0028] 1. Spindle; 2. First positioning component; 201. First trapezoidal groove; 3. Spring; 4. Second positioning component; 401. Second trapezoidal groove; 402. Third trapezoidal groove; 5. Grinding head; 501. Connecting sleeve; 502. Grinding body; 503. Grinding ridge; 6. Long shaft sleeve; 7. Inner sleeve; 8. Connecting plate; 9. Third positioning component. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] See Figures 1-3 As shown, this utility model provides a grinding mill spring pressure adjustment assembly, including a main shaft 1 and a spring 3. The spring 3 is nested on the main shaft 1, and a first positioning member 2 and a second positioning member 4 are respectively provided on the upper and lower sides of the spring 3. The inner sides of the first positioning member 2 and the second positioning member 4 are respectively provided with a first trapezoidal groove 201 and a second trapezoidal groove 401 for cooperating with the spring 3. The first trapezoidal groove 201 and the second trapezoidal groove 401 can fix the position of the spring 3, preventing the spring 3 from deviating during movement. The other side of the first positioning member 2 is provided with a third trapezoidal groove 402 for cooperating with the grinding head 5.
[0031] In the above structure, the spring 3 is positioned between the first positioning member 2 and the second positioning member 4, and the position of the spring 3 is fixed by the first trapezoidal groove 201 and the second trapezoidal groove 401. When the grinder is used, the spring 3 will always maintain a fixed movement mode and will not deviate or make any bad contact with the spindle 1, thus providing a stable and uniform pressure for the grinder.
[0032] In some embodiments, the first trapezoidal groove 201, the second trapezoidal groove 401, and the third trapezoidal groove 402 are all positive trapezoidal grooves.
[0033] refer to Figures 4-7As shown, this utility model provides a grinding device, including the aforementioned grinding spring pressure adjusting assembly, and further including an inner sleeve 7 and a long shaft sleeve 6. The long shaft sleeve 6 is disposed inside the inner sleeve 7 and is connected to the inner wall of the inner sleeve 7 via connecting plates 8, which can increase the connection strength between the long shaft sleeve 6 and the inner sleeve 7. To increase the stability of the connection between the long shaft sleeve 6 and the inner sleeve 7, multiple connecting plates 8 are provided, and these connecting plates 8 are evenly distributed along the circumference of the main shaft 1.
[0034] Furthermore, the main spindle 1 is fitted into the long shaft sleeve 6. The upper end of the long shaft sleeve 6 is provided with a third positioning member 9 for supporting the upper part of the main spindle 1, and the second positioning member 4 is provided at the lower end of the long shaft sleeve 6 for supporting the lower part of the main spindle 1, so as to maintain the stability of the movement of the main spindle 1.
[0035] In some embodiments, the lower end of the long shaft sleeve 6 is provided with a stepped groove, and the other side of the second positioning member 4 is provided as a plane that mates with the stepped groove.
[0036] In some embodiments, the spindle 1 and the third positioning member 9 are in clearance fit with the shaft hole between them, and the spindle 1 and the second positioning member 4 are also in clearance fit with the shaft hole between them. The second positioning member 4 is in tight fit with the stepped groove at the lower end of the long shaft sleeve 6, and the third positioning member 9 is in tight fit with the upper end of the long shaft sleeve 6.
[0037] In the above-mentioned grinding device scheme, the upper end of the grinding head 5 cooperates with the third trapezoidal groove 402 of the first positioning member 2 during use. The grinding head 5 is fixedly locked to the main shaft 1. By pressing the inner sleeve 7, the second positioning member 4 applies pressure to the spring 3, thereby adjusting the pressure on the grinding head 5 and controlling the magnitude of the grinding force.
[0038] In some embodiments, the grinding head 5 includes a connecting sleeve 501 and a grinding body 502. The connecting sleeve 501 is a two-piece type and is connected to the end of the spindle 1. A connecting key is formed at the end of the spindle 1, and the connecting key is located at the gap between the two-piece connecting sleeve 501. The connecting sleeve 501 mates with the third trapezoidal groove 402. In use, the connecting sleeve 501 is locked to the spindle 1 by a locking member to maintain the stability of the grinding head 5.
[0039] In some embodiments, the grinding body 502 is frustum-shaped, and the lower surface of the grinding body 502 is provided with a plurality of grinding ridges 503 along the circumference, and these grinding ridges 503 are evenly distributed along the circumference.
[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A grinding mill spring pressure adjustment assembly, characterized in that: It includes a main shaft and a spring, with the spring nested on the main shaft, and a first positioning element and a second positioning element respectively provided on the upper and lower sides of the spring; The inner sides of the first positioning member and the second positioning member are respectively provided with a first trapezoidal groove and a second trapezoidal groove for cooperating with the spring; The other side of the first positioning member is provided with a third trapezoidal groove for cooperating with the grinding head.
2. The grinding mill spring pressure regulating assembly according to claim 1, characterized in that: The first trapezoidal groove, the second trapezoidal groove, and the third trapezoidal groove are all regular trapezoidal grooves.
3. A grinding apparatus using the grinding spring pressure regulating assembly of claim 2, characterized in that: It also includes an inner sleeve and a long shaft sleeve, the long shaft sleeve being disposed inside the inner sleeve and connected to the inner wall of the inner sleeve via a connecting plate.
4. The grinding apparatus according to claim 3, characterized in that: The main shaft is fitted into the long shaft sleeve. The upper end of the long shaft sleeve is provided with a third positioning member for supporting the upper part of the main shaft, and the second positioning member is provided at the lower end of the long shaft sleeve for supporting the lower part of the main shaft.
5. The grinding apparatus according to claim 4, characterized in that: The lower end of the long shaft sleeve is provided with a stepped groove, and the other side of the second positioning member is provided as a plane that mates with the stepped groove.
6. The grinding apparatus according to claim 5, characterized in that: The spindle is fitted with a clearance fit between the shaft hole in the middle of the third positioning component and the shaft hole in the middle of the second positioning component.
7. The grinding apparatus according to claim 5, characterized in that: The second positioning element is tightly fitted with the stepped groove at the lower end of the long shaft sleeve, and the third positioning element is tightly fitted with the upper end of the long shaft sleeve.
8. The grinding apparatus according to claim 3, characterized in that: Multiple connecting plates are provided, and these connecting plates are evenly distributed along the circumference of the main shaft.
9. The grinding apparatus according to claim 3, characterized in that: The grinding head includes a connecting sleeve and a grinding body. The connecting sleeve is a two-piece type and is connected to the end of the spindle. A connecting key is formed at the end of the spindle, and the connecting key is located in the gap between the two-piece connecting sleeve. The connecting sleeve mates with the third trapezoidal groove.
10. The grinding apparatus according to claim 9, characterized in that: The grinding body is frustum-shaped, and the lower surface of the grinding body is provided with multiple grinding ridges, which are evenly distributed along the circumference.