Powder pressing device
By introducing a guide connecting column and a multi-stage spring design into the powder press, the sliding and rotation of the powder press hammer is solved, and the stable sliding of the powder press head is achieved, which improves the extraction efficiency and flavor of the coffee and reduces production costs.
Patent Information
- Application Number
- CN202422311457.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The existing powder press hammers are easy to slide and rotate during use, resulting in unstable powder pressing, affecting the uniform compaction of coffee powder and the extraction effect of coffee.
A powder press is designed, including a guide connecting column, a first and a second annular connection, a spring and annular positioning member. Through the sliding fit of the guide slider and the guide slide chute, the rotation of the powder press head is restricted, the vertical sliding stability is ensured, and the elastic coefficient design of different springs is designed to provide stability and convenient operation.
The stable vertical sliding of the powder pressing head is achieved, ensuring uniform compaction of the coffee powder, improving the extraction efficiency and flavor of the coffee, and reducing production costs and operation difficulty.
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Figure CN223183345U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coffee tools, in particular to a coffee powder tamper. Background Art
[0002] With the improvement of people's living standards, drinking coffee has become a kind of life enjoyment for people. In the process of hand-brewed coffee, powder distribution and pressing are required, and coffee pressing is a key step in the process of making espresso.
[0003] Specifically, coffee tamping involves applying vertical downward pressure to the coffee grounds in the coffee basket using a specialized tamper, compacting the loose grounds into a flat, uniform, and moderately dense powder cake. This process is crucial for two reasons: first, it ensures that water flows evenly through the coffee grounds, allowing hot water to pass through all parts of the coffee cake at the same speed and pressure during extraction, resulting in a uniform extraction and avoiding channeling (where water flow is concentrated through a specific part of the coffee cake, resulting in uneven extraction); and second, it enhances extraction stability, as a stable powder cake density helps control extraction time and coffee flavor.
[0004] In the prior art, a tamping hammer primarily consists of a tamping head, an elastic structure, and a handle with a mounting slot. The elastic structure is positioned within the mounting slot, with a portion of the tamping head extending into the slot and elastically engaging the elastic structure. However, in actual use, the tamping head not only slides relative to the mounting slot but also rotates. This unstable state significantly reduces the stability of the tamping head. This poor stability further compromises the tamping effect, making it difficult to evenly compact the coffee powder. This ultimately negatively impacts the extraction quality and taste of the coffee, reducing the quality of the coffee.
[0005] The powder compacting hammer disclosed in application number CN202410366117.5 also has the above-mentioned problems. Utility Model Content
[0006] The purpose of the utility model is to provide a powder press, aiming to solve the technical problems in the above-mentioned background technology.
[0007] The technical solution of the present utility model is achieved as follows:
[0008] The technical solution of this application provides a powder press, comprising:
[0009] A handle provided with a mounting slot;
[0010] The powder pressing assembly includes a guide connecting post, a first spring, a first annular connecting member, and a powder pressing head. The guide connecting post is arranged in the mounting groove. One end of the first annular connecting member is slidably mounted on the guide connecting post, and the other end passes through the mounting groove and is connected to the powder pressing head. The first spring is arranged in the mounting groove. When the first annular connecting member slides into the mounting groove, the first spring applies elastic resistance to the first annular connecting member.
[0011] Wherein, the first annular connecting member is provided with a guide slider, and the guide connecting column is provided with a guide slot adapted to slide the guide slider; and
[0012] The balancing component includes a second annular connecting member, a second spring and an annular positioning member. The second annular connecting member can be slidably mounted on the first annular connecting member and slidably cooperate with the above-mentioned mounting groove. The outer diameter of the above-mentioned annular positioning member is greater than the outer diameter of the above-mentioned powder pressing head. The above-mentioned annular positioning member is mounted on the above-mentioned first annular connecting member and is connected to the above-mentioned second annular connecting member. The second spring is arranged in the above-mentioned mounting groove and elastically cooperates with the above-mentioned second annular connecting member. When the above-mentioned second annular connecting member slides into the above-mentioned mounting groove, the above-mentioned second spring will apply elastic resistance to the above-mentioned second annular connecting member.
[0013] A further technical solution is that the first spring and the second spring are both sleeved on the guide connecting column, and the first spring is located on the inner side of the second spring.
[0014] A further technical solution is that the elastic coefficient of the first spring is greater than the elastic coefficient of the second spring.
[0015] A further technical solution is that the guide connecting column is detachably arranged in the installation groove;
[0016] The first annular connecting member and the guide connecting column, the first annular connecting member and the powder pressing head, and the second annular connecting member and the annular positioning member can all be detachably connected.
[0017] A further technical solution is that the guide connecting column and the mounting groove, the first annular connecting member and the powder pressing head, and the second annular connecting member and the annular positioning member are all detachably connected via threaded structures;
[0018] Among them, the threaded side of the guide connecting column away from the bottom of the installation groove is equipped with a limiting bolt, which is used to prevent the first annular connecting piece from falling off when sliding on the guide connecting column. The interior of the first annular connecting piece is provided with a stepped groove adapted to the limiting bolt.
[0019] A further technical solution is that the guide slot is provided along the axial direction of the guide connecting column, and one end of the guide slot passes through the outer side of the guide connecting column;
[0020] Wherein, the guide sliding block is an adjusting bolt, and the adjusting bolt is threadedly engaged with the first annular connecting piece.
[0021] A further technical solution is that the outer annular surface of the second annular connecting member is connected to the side wall of the installation groove.
[0022] Compared with the prior art, the technical solution of the present invention has at least the following advantages or beneficial effects:
[0023] The powder tamping device of the present application has many advantages in actual use. When using it, the operator first holds the handle and places the powder tamping head of the powder tamping hammer into the powder bowl so that it contacts the coffee powder in the powder bowl. At this time, the annular positioning member covers the bowl mouth of the powder bowl, which can effectively limit the shaking of the powder tamping device during use and ensure the stability of operation. When the handle is pressed, the first annular connecting member slides in the mounting groove. During this process, the guide connecting column plays an important limiting role, regulating and guiding the sliding of the first annular connecting member. At the same time, the sliding fit of the guide slider and the guide groove further limits the first annular connecting member. This double limiting mechanism can prevent the first annular connecting member from rotating relative to the handle, thereby making the vertical sliding of the powder tamping head relative to the handle more stable. Stable vertical sliding can ensure that the powder tamping head applies uniform and stable pressure to the coffee powder, making the compaction effect of the coffee powder better. A good compaction effect helps to improve the extraction efficiency of coffee, make the flavor of coffee richer, and thus help to improve the quality of coffee. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.
[0025] Figure 1 This is an axonometric view of a powder pressing device according to an embodiment of the present utility model;
[0026] Figure 2 This is an exploded view of a powder pressing device according to an embodiment of the present utility model;
[0027] Figure 3 This is a bottom view of a powder pressing device according to an embodiment of the present utility model;
[0028] Figure 4 for Figure 3Cross-sectional view in the AA direction;
[0029] Figure 5 for Figure 4 A partial enlarged view of middle B;
[0030] Figure 6 This is a schematic structural diagram of a handle according to an embodiment of the present utility model.
[0031] Icon: 1-handle, 2-powder pressing head, 3-annular positioning piece, 4-first annular connecting piece, 5-second annular connecting piece, 6-guide connecting column, 7-first spring, 8-second spring, 9-mounting slot, 10-guide slider, 11-guide slide groove, 12-limiting bolt. DETAILED DESCRIPTION
[0032] Example
[0033] Please refer to Figures 1-6 The present invention provides a powder tamper, including a handle 1, a powder tamper assembly, and a balancing assembly. The powder tamper assembly primarily comprises a guide connecting post 6, a first spring 7, a first annular connector 4, and a powder tamper head 2. The balancing assembly primarily comprises a second annular connector 5, a second spring 8, and an annular positioning member 3.
[0034] The handle 1 is provided with a mounting groove 9, a guide connecting column 6 is provided along the depth direction of the mounting groove 9, and one end of the guide connecting column 6 is connected to the bottom of the mounting groove 9, the outer end of the guide connecting column 6 is slidably sleeved with a first annular connector 4 and a second annular connector 5, and the second annular connector 5 is slidably sleeved on the outside of the first annular connector 4, the outside of the first annular connector 4 is connected to the powder pressing head 2, the outside of the second annular connector is connected to the annular positioning member 3, and the annular connector is provided between the powder pressing head 2 and the handle 1. The mounting groove 9 is provided with a first spring 7 and a second spring 8, the first spring 7 matches the first annular connector 4, when the first annular connector 4 slides into the mounting groove 9, the first spring 7 will apply elastic resistance to the first annular connector 4, the second spring 8 matches the second annular connector 5, when the second annular connector 5 slides into the mounting groove 9, the second spring 8 will apply elastic resistance to the second annular connector 5.
[0035] Furthermore, the first annular connecting member 4 is provided with a guide slider 10 , and the guide connecting column 6 is provided with a guide slot 11 adapted to slide with the guide slider 10 .
[0036] The powder tamping device of the present application has many advantages in actual use. When using it, the operator first grasps the handle 1 and places the powder tamping head 2 of the powder tamping hammer into the powder bowl so that it contacts the coffee powder in the powder bowl. At this time, the annular positioning member 3 covers the rim of the powder bowl, which can effectively limit the shaking of the powder tamping device during use and ensure operational stability. When the handle 1 is pressed, the first annular connecting member 4 slides in the mounting groove 9. During this process, the guide connecting column 6 plays an important limiting role, regulating and guiding the sliding of the first annular connecting member 4. At the same time, the sliding fit of the guide slider 10 and the guide groove 11 further limits the first annular connecting member 4. This dual limiting mechanism prevents the first annular connecting member 4 from rotating relative to the handle 1, thereby making the vertical sliding of the powder tamping head 2 relative to the handle 1 more stable. Stable vertical sliding ensures that the powder tamping head 2 applies uniform and stable pressure to the coffee powder, resulting in better compaction of the coffee powder. Good compaction effect helps to improve the extraction efficiency of coffee, make the coffee flavor more rich, and thus help improve the quality of coffee.
[0037] In some embodiments of the present invention, the first spring 7 and the second spring 8 are both sleeved on the guide connecting column 6 , and the first spring 7 is located inside the second spring 8 .
[0038] In the above embodiment, one end of the first spring 7 is connected to the bottom side of the mounting groove 9, and the other end is connected to the first annular connector 4, thereby achieving elastic cooperation between the first annular connector 4 and the mounting groove 9. Similarly, one end of the second spring 8 is connected to the bottom side of the mounting groove 9, and the other end is connected to the second annular connector 5, thereby achieving elastic cooperation between the second annular connector 5 and the mounting groove 9. The first spring 7 is located inside the second spring 8, and such a design has significant advantages. On the one hand, the first spring 7 does not occupy the space of the mounting groove 9 alone, making the overall structure of the handle 1 more compact. On the other hand, it is conducive to reducing the volume of the handle 1, which is more convenient in actual use, while saving the material used for the handle 1 and reducing production costs. This design is highly practical and provides strong support for the efficient use and promotion of the powder press.
[0039] In some embodiments of the present invention, the elastic coefficient of the first spring 7 is greater than the elastic coefficient of the second spring 8 .
[0040] In the above embodiment, the elastic force of the first spring 7 mainly acts on the coffee powder to achieve the function of compacting the coffee powder. The second spring 8 prompts the annular positioning member 3 to cover the powder bowl, plays an anti-deflection role, and greatly improves the stability of the powder press during use. Usually, since the elastic force required for the annular positioning member 3 is relatively small, the first spring 7 with a smaller elastic coefficient is selected to act on the coffee powder, and the second spring 8 with a larger elastic coefficient is used for anti-deflection. Such a design can not only meet the functional requirements of compacting and anti-deflection of coffee powder, but also avoid the problem of excessive resistance generated by the first and second springs 8 during use. In other words, the powder press of the present application is more convenient for pressing operations, making the powder pressing process smoother, thereby improving the practicality and ease of use of the powder press.
[0041] In some embodiments of the present invention, the guide connecting column 6 is detachably mounted in the mounting groove 9;
[0042] The first annular connector 4 and the guide connecting column 6 , the first annular connector 4 and the powder pressing head 2 , and the second annular connector 5 and the annular positioning member 3 can all be detachably connected.
[0043] In the above embodiment, the guide connecting column 6, the first annular connecting member 4, the second annular connecting member 5, the powder pressing head 2, and the annular positioning member 3 are designed to be detachable. This allows the present invention to be disassembled into multiple independent components, making it more convenient to transport, reducing the occupied space, lowering the transportation cost, and improving the convenience of the powder pressing device in practical application.
[0044] In some embodiments of the present invention, the guide connecting column 6 and the mounting groove 9, the first annular connecting member 4 and the powder pressing head 2, and the second annular connecting member 5 and the annular positioning member 3 are all detachably connected via a threaded structure.
[0045] Among them, the side of the guide connecting column 6 away from the bottom of the installation groove 9 is threadedly fitted with a limiting bolt 12, which is used to prevent the first annular connecting member 4 from falling off when sliding on the guide connecting column 6. The interior of the first annular connecting member 4 is provided with a stepped groove adapted to the limiting bolt 12.
[0046] In the above embodiment, the detachable connection method using a threaded structure has significant advantages. It can realize the rapid installation or disassembly of the guide connecting column 6, the powder pressing head 2 and the annular positioning member 3, greatly improving the convenience of operation. The stepped groove is designed as two notches, one large and one small. The small-diameter notch slides with the guide connecting column 6, and the root of the limit bolt 12 slides with the large-diameter notch. Such a design not only adapts to the sliding of the first annular connector 4, but also effectively prevents the first annular connector 4 from falling off from the guide connecting column 6, ensuring the stability of the structure. In addition, when disassembly is required, it is only necessary to remove the limit bolt 12 to remove the first annular connector 4 from the guide connecting column 6, and then the first annular connector 4 and the second annular connector 5 are disassembled, which provides convenience for repairing and replacing parts and enhances the practicality and maintainability of the powder pressing device.
[0047] In some embodiments of the present invention, the guide slot 11 is provided along the axial direction of the guide connecting column 6, and one end of the guide slot 11 passes through the outer side of the guide connecting column 6;
[0048] The guide slider 10 is an adjusting bolt, and the adjusting bolt is threadedly engaged with the first annular connector 4 .
[0049] In the above embodiment, one end of the guide chute 11 extends through the outside of the guide connecting post 6. This design facilitates separation of the guide connecting post 6 from the first annular connector 4. The screw portion of the adjustment bolt is threadedly engaged with the first annular connector 4, while the root portion slides in engagement with the guide chute 11. Furthermore, the adjustment bolt can be removed from the first annular connector 4 for replacement, facilitating maintenance and adjustment of the powder tamper and enhancing its flexibility and operability.
[0050] In some embodiments of the present invention, the outer annular surface of the second annular connector 5 is connected to the side wall of the mounting groove 9 .
[0051] In the above embodiment, the outer surface of the second annular connector 5 is in contact with the side wall of the mounting groove 9. This design further improves the stability of the second annular connector 5 during sliding, thereby making the tamping head 2 more stable during movement, thereby achieving a better coffee compaction effect and improving the performance of the tamper.
[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A powder pressing device, characterized in that: include: A handle (1) is provided with a mounting groove (9); A powder pressing assembly comprises a guide connecting column (6), a first spring (7), a first annular connecting member (4) and a powder pressing head (2), wherein the guide connecting column (6) is arranged in the mounting groove (9), one end of the first annular connecting member (4) is slidably sleeved on the guide connecting column (6), and the other end passes through the mounting groove (9) and is connected to the powder pressing head (2), the first spring (7) is arranged in the mounting groove (9), and when the first annular connecting member (4) slides into the mounting groove (9), the first spring (7) applies elastic resistance to the first annular connecting member (4); Wherein, the first annular connecting member (4) is provided with a guide slider (10), and the guide connecting column (6) is provided with a guide slot (11) adapted to slide the guide slider (10); and A balancing component comprises a second annular connector (5), a second spring (8) and an annular positioning member (3); the second annular connector (5) can be slidably mounted on the first annular connector (4) and slidably matched with the mounting groove (9); the outer diameter of the annular positioning member (3) is greater than the outer diameter of the powder pressing head (2); the annular positioning member (3) is mounted on the first annular connector (4) and connected to the second annular connector (5); the second spring (8) is arranged in the mounting groove (9) and elastically matched with the second annular connector (5); when the second annular connector (5) slides into the mounting groove (9), the second spring (8) applies elastic resistance to the second annular connector (5).
2. A powder pressing device according to claim 1, characterized in that, The first spring (7) and the second spring (8) are both sleeved on the guide connecting column (6), and the first spring (7) is located on the inner side of the second spring (8).
3. A powder pressing device according to claim 2, characterized in that, The elastic coefficient of the first spring (7) is greater than the elastic coefficient of the second spring (8).
4. A powder pressing device according to claim 1, characterized in that, The guide connecting column (6) is detachably arranged in the installation groove (9); The first annular connection piece (4) and the guide connection column (6), the first annular connection piece (4) and the powder pressing head (2), and the second annular connection piece (5) and the annular positioning piece (3) can all be detachably connected.
5. A powder pressing device according to claim 4, characterized in that, The guide connecting column (6) and the mounting groove (9), the first annular connecting piece (4) and the powder pressing head (2), and the second annular connecting piece (5) and the annular positioning piece (3) are all detachably connected via a threaded structure; The guide connecting column (6) is threadedly fitted with a limiting bolt (12) on one side away from the bottom of the mounting groove (9) to prevent the first annular connecting member (4) from falling off when sliding on the guide connecting column (6). A stepped groove adapted to the limiting bolt (12) is provided inside the first annular connecting member (4).
6. A powder pressing device according to claim 5, characterized in that: The guide slot (11) is arranged along the axial direction of the guide connecting column (6), and one end of the guide slot (11) passes through the outer side of the guide connecting column (6); Wherein, the guide slider (10) is an adjusting bolt, and the adjusting bolt is threadedly engaged with the first annular connecting member (4).
7. A powder pressing device according to any one of claims 1 to 6, characterized in that: The outer annular surface of the second annular connecting member (5) is connected to the side wall of the installation groove (9).
Citation Information
Patent Citations
Powder pressing hammer for grinding coffee and powder pressing method
CN118252376A