Impact type powder pressing device

Abstract

The utility model provides an impact type powder pressing device, and belongs to the technical field of coffee tools. The powder pressing device is composed of a powder pressing device body and a pressurization type impact assembly. The powder pressing device body comprises a center main cylinder, a handle and a powder pressing hammer, the handle and the powder pressing hammer are arranged at the two ends of the center main cylinder respectively, and the powder pressing hammer is elastically matched with the center main cylinder. The pressurizing type impact assembly is provided with a moving body, an excitation switch, a firing pin and an energy storage spring, the moving body can slide in the center main cylinder, the energy storage spring is located between the moving body and the handle, and the firing pin is connected with the moving body and the powder pressing hammer. During working, after the handle is pressed and the excitation part is matched with the excitation switch, the excitation switch is turned on, the energy storage spring releases elastic potential energy and converts the elastic potential energy into kinetic energy of the moving body, and the firing pin and the powder pressing hammer are pushed to complete powder pressing. After the handle releases pressure, the moving body resets. According to the design, traditional continuous large manpower is partially converted into the process of pressing the handle to trigger the spring to release energy, and a user can easily and efficiently complete powder pressing operation in a labor-saving mode only with small force.

Description

Technical Field

[0001] This utility model relates to the field of coffee tool technology, and more specifically, to an impact tamper. Background Technology

[0002] As people's living standards improve, drinking coffee has become a lifestyle enjoyment. In the process of making pour-over coffee, it is necessary to distribute and tamp the coffee grounds, and tamping the coffee grounds is a key step in making espresso.

[0003] Specifically, coffee tamping refers to using a specialized tamper to apply vertical downward pressure to coffee grounds filled in a coffee bowl, compacting the loose coffee grounds into a flat, uniform, and moderately dense puck. Tamping is crucial, primarily for two reasons: First, it ensures that water flows evenly through the coffee grounds, allowing hot water to pass through all parts of the puck at the same speed and pressure during extraction, thus achieving a uniform extraction and avoiding channeling (where water concentrates in a particular part of the coffee grounds, leading to uneven extraction). Second, it enhances extraction stability; a stable puck density helps control extraction time and the coffee's flavor profile.

[0004] Existing coffee tampers have a relatively basic structure. They mainly consist of a tamping head, a flexible structure, and a handle with a mounting groove. The flexible structure is housed inside the mounting groove, and a portion of the tamping head extends into the groove, forming an elastic fit with the flexible structure. This design, to a certain extent, ensures the continuity and stability of the tamping operation. However, in practical use, existing coffee tampers have significant shortcomings. When a user operates the tamper to press coffee grounds in the portafilter, the force exerted by the tamping head on the coffee grounds is almost entirely equivalent to the force applied by the user on the handle. When making espresso, the coffee grounds usually need to be tamped to a certain degree of compaction to ensure the quality of coffee extraction. This requires the user to exert considerable force to complete the tamping operation. Prolonged use of this method, especially for baristas and other personnel who frequently make coffee, can easily lead to arm fatigue, reducing work efficiency and potentially causing inconsistent tamping force due to fatigue, thus affecting the consistency of coffee quality. Utility Model Content

[0005] The purpose of this invention is to provide an impact-type powder compactor, which aims to solve the technical problems mentioned in the background art.

[0006] The embodiments of this utility model are implemented as follows:

[0007] This application provides an impact-type powder compactor, comprising:

[0008] The main body of the powder tamper includes a central main cylinder, a handle, and a powder tamper hammer. The handle and the powder tamper hammer are respectively disposed at both ends of the central main cylinder, and the powder tamper hammer is elastically engaged with the central main cylinder.

[0009] A pressurized impact assembly includes a movable body, an activation switch, a striker, and an energy storage spring. The movable body is slidably disposed inside the central main cylinder. The energy storage spring is disposed inside the central main cylinder between the movable body and the handle and is used to elastically engage with the movable body. One end of the striker abuts against the powder-pressing hammer, and the other end penetrates into the central main cylinder and is connected to the movable body.

[0010] The movable body has a positioning groove at one end facing the impact pin for engaging with the impact pin. The trigger switch is located at the opening of the positioning groove for limiting the impact pin. The central main cylinder between the movable body and the handle has an triggering part for triggering the trigger switch. When the handle is pressed until the triggering part matches the trigger switch, the trigger switch is activated, and the energy storage spring causes the movable body to strike the impact pin. When the handle is released, the elastic action between the powder-pressing hammer and the central main cylinder, as well as the elastic action of the energy storage spring, causes the movable body to reset.

[0011] Furthermore, based on the aforementioned scheme, the excitation switch includes an excitation spring and an excitation block. An adjustment groove is provided on the side of the annular surface of the moving body. The adjustment groove is arranged along the radial direction of the central main cylinder, and its bottom penetrates the positioning groove. The excitation block is telescopically disposed within the adjustment groove. A docking hole is provided on the excitation block along the axial direction of the central main cylinder. The excitation spring is disposed between the bottom of the adjustment groove and the excitation block. When the excitation spring is at its original length, the docking hole is misaligned with the positioning groove, and the exterior of the excitation block extends beyond the opening of the adjustment groove. The excitation part includes an inclined structure disposed within the central main cylinder. When the excitation block and the inclined structure abut against each other, the excitation block moves into the adjustment groove and compresses the excitation spring, and the docking hole and the adjustment groove are connected.

[0012] Furthermore, based on the aforementioned scheme, a first return spring is provided between the central main cylinder and the powder-pressing hammer; wherein the striking pin passes through the interior of the first return spring.

[0013] Furthermore, based on the aforementioned scheme, a balancing component is also included. The balancing component includes: a first annular cylinder sleeved outside the first return spring, one end of which is sleeved on the central main cylinder and slidably engaged with the central main cylinder, and the other end of which is connected to the powder pressing hammer; an annular abutment piece slidably sleeved outside the first annular cylinder, the outer diameter of which is larger than the outer diameter of the powder pressing hammer; and a second return spring connecting the first annular cylinder and the annular abutment piece for resetting the annular abutment piece after it slides.

[0014] Furthermore, based on the aforementioned scheme, the second return spring is sleeved on the outside of the first annular cylinder, and the second annular cylinder is sleeved on the outside of the second return spring. One end of the second annular cylinder is connected to the annular abutment piece, and the other end is sleeved on the central main cylinder and slides in cooperation with the central main cylinder.

[0015] Furthermore, based on the aforementioned scheme, a positioning cylinder is provided at the end of the moving body facing the handle, and the energy storage spring is sleeved inside the positioning cylinder.

[0016] Furthermore, based on the aforementioned scheme, the handle is threadedly engaged with the central main cylinder.

[0017] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects:

[0018] In use, the tamper of this application involves the tamper hammer extending into the coffee bowl. When the user presses the handle, the actuation unit on the central cylinder gradually approaches and aligns with the actuation switch at the positioning slot of the moving part. During this process, the energy storage spring is compressed and stores energy. When the actuation unit triggers the actuation switch, the depth of the positioning slot above the actuation switch allows for a certain movement distance for the moving part. The energy storage spring instantly releases a large amount of energy, causing the moving part to move towards the striker and quickly strike it. The striker then transmits this impact force to the tamper hammer, thereby tamping the coffee grounds. When the handle is released, the elastic action between the tamper hammer and the central cylinder, as well as the elastic action of the energy storage spring, causes the moving part to return to its original position, ready for the next tamping operation. Compared to the traditional method of pressing the tamper hammer, it has a significant advantage in terms of effort reduction. In the traditional tamping process, the user needs to continuously exert force to overcome the resistance of the coffee grounds, directly applying force to the tamper hammer, which can easily lead to arm fatigue over time. This impact tamper utilizes spring energy storage. The force that would otherwise need to be continuously applied is partly applied directly to the coffee grounds via the tamper hammer, and partly converted into energy released by pressing the handle to trigger the spring. The elastic potential energy released by the spring is converted into the kinetic energy of the moving part, which, upon impact, propels the tamper hammer with great force, completing the tamping action. Users only need to exert minimal force to compress the spring and trigger the switch, eliminating the need for consistently applying significant force to the tamper hammer, greatly reducing manual labor and enabling efficient and effortless tamping. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an isometric view of an impact-type powder compactor according to an embodiment of the present invention;

[0021] Figure 2 This is a front view of an impact-type powder compactor according to an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of an impact-type powder compactor according to an embodiment of the present invention;

[0023] Figure 4 for Figure 2 A cross-sectional view along the AA direction;

[0024] Figure 5 for Figure 4 A magnified view of part B in the image;

[0025] Figure 6 for Figure 4 A magnified view of part C;

[0026] Figure 7 This is a schematic diagram illustrating the principle of an impact-type powder compactor in use according to an embodiment of this utility model.

[0027] Icons: 1-Handle, 2-Central main cylinder, 3-Positioning cylinder, 4-Storage spring, 5-Moving body, 6-Actuation block, 7-First reset spring, 8-Striking pin, 9-Annular abutment piece, 10-Powder pressing hammer, 11-First annular cylinder, 12-Second reset spring, 13-Second annular cylinder, 14-Positioning groove, 15-Docking hole, 16-Actuation spring, 17-Actuation part. Detailed Implementation

[0028] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0029] Example

[0030] Please refer to Figures 1-7 This application provides an impact-type powder compactor, comprising: a compactor body including a central main cylinder 2, a handle 1, and a compaction hammer 10, wherein the handle 1 and the compaction hammer 10 are respectively disposed at both ends of the central main cylinder 2, and the compaction hammer 10 is elastically engaged with the central main cylinder 2; and a pressure-boosting impact assembly including a movable body 5, an activation switch, a striking pin 8, and an energy storage spring 4, wherein the movable body 5 is slidably disposed inside the central main cylinder 2, and the energy storage spring 4 is disposed inside the central main cylinder 2 between the movable body 5 and the handle 1 for elastically engaging with the movable body 5; one end of the striking pin 8 abuts against the compaction hammer 10, and the other end penetrates into the central main cylinder 2 and engages with the compaction hammer 10. The aforementioned movable bodies 5 are connected; wherein, the end of the aforementioned movable body 5 facing the aforementioned striking pin 8 is provided with a positioning groove 14 for docking with the aforementioned striking pin 8, the aforementioned excitation switch is provided in the groove of the aforementioned positioning groove 14 for limiting the aforementioned striking pin 8, the central main cylinder 2 between the aforementioned movable body 5 and the aforementioned handle 1 is provided with an excitation part 17 for exciting the aforementioned excitation switch, when the aforementioned handle 1 is pressed until the aforementioned excitation part 17 is adapted to the aforementioned excitation switch, the aforementioned excitation switch is turned on, the aforementioned energy storage spring 4 causes the aforementioned movable body 5 to strike the aforementioned striking pin 8, when the aforementioned handle 1 is released, the elastic action between the aforementioned powder pressing hammer 10 and the aforementioned central main cylinder 2 and the elastic action of the aforementioned energy storage spring 4 cause the aforementioned movable body 5 to reset.

[0031] In use, the tamper of this application involves the tamper hammer 10 extending into the coffee bowl. When the user presses the handle 1, the pressing action of the handle 1, combined with the bidirectional action of the tamper hammer 10 and the striking pin 8, causes the activation part 17 on the central main body 2 to gradually approach and align with the activation switch at the positioning groove 14 of the moving body 5. During this process, the energy storage spring 4 is compressed and stores energy. When the activation part 17 triggers the activation switch, the positioning groove 14 above the activation switch provides a travel distance for the moving body 5. The energy storage spring 4 instantly releases a large amount of energy, causing the moving body 5 to move towards the striking pin 8 and quickly strike it. The striking pin 8 then transmits this impact force to the tamper hammer 10, thereby tamping the coffee powder. When the handle 1 is released, the elastic action between the tamper hammer 10 and the central main body 2, as well as the elastic action of the energy storage spring 4, causes the moving body 5 to return to its original position, ready for the next tamping operation. Compared to the traditional method of pressing the tamper hammer 10, this method offers significant advantages in terms of effort reduction. In traditional tamping, users need to continuously exert force to overcome the resistance of the coffee grounds, directly applying force to the tamper 10. Prolonged operation can easily lead to arm fatigue. This impact-type tamper, however, utilizes spring energy storage. Part of the force that would otherwise be continuously applied is applied directly to the coffee grounds through the tamper 10, while the other part is converted into energy released by pressing the handle 1 to trigger the spring. The elastic potential energy released by the spring is converted into the kinetic energy of the moving part 5, which, upon impact, powerfully propels the tamper 10, completing the tamping action. Users only need to exert a small amount of force to compress the spring and trigger the switch, eliminating the need for consistently applying significant force to the tamper 10, greatly reducing the burden on the user and easily achieving efficient and labor-saving tamping.

[0032] In a preferred embodiment, the aforementioned excitation switch includes an excitation spring 16 and an excitation block 6. An adjustment groove is provided on the side of the annular surface of the movable body 5, the adjustment groove being arranged radially along the central main cylinder 2, and the bottom of the adjustment groove penetrating the positioning groove 14. The excitation block 6 is telescopically disposed within the adjustment groove, and a docking hole 15 is provided on the excitation block 6 along the axial direction of the central main cylinder 2. The excitation spring 16 is disposed between the bottom of the adjustment groove and the excitation block 6. When the excitation spring 16 is at its original length, the docking hole 15 is misaligned with the positioning groove 14, and the outer part of the excitation block 6 extends beyond the opening of the adjustment groove. The excitation part 17 includes an inclined structure disposed within the central main cylinder 2. When the excitation block 6 and the inclined structure abut against each other, the excitation block 6 moves into the adjustment groove and compresses the excitation spring 16, and the docking hole 15 engages with the adjustment groove.

[0033] In the above embodiment, under normal conditions, the excitation spring 16 is at its original length, the docking hole 15 is misaligned with the positioning groove 14, the excitation block 6 extends out of the adjustment groove opening, and the upper end of the striker 8 extends into the groove opening of the positioning groove 14 and abuts against the excitation block 6. When the handle 1 is pressed, the moving body 5 is pushed upward towards the center main cylinder 2 through the transmission action of the striker 8. At this time, the energy storage spring 4 is compressed and stores energy. When the excitation block 6 cooperates with the inclined structure, it pushes the excitation block 6 into the adjustment groove and compresses the excitation spring 16, so that the docking hole 15 is docked with the positioning groove 14. At this time, the energy storage spring 4 releases energy and pushes the moving body 5 downward. When the bottom of the positioning groove 14 impacts the upper end of the striker 8, the compaction operation of the powder-pressing hammer 10 is realized. When the pressure on the handle 1 is released, under the action of the reset spring, the energy storage spring 4, and the excitation spring 16, the powder-pressing hammer 10, the striker 8, and the excitation switch are reset, as shown in the attached drawings of the specification. Figure 3 or Figure 4 The state shown is to facilitate the next operation.

[0034] In a preferred embodiment, a first return spring 7 is provided between the central main cylinder 2 and the powder pressing hammer 10; wherein the striking pin 8 passes through the interior of the first return spring 7.

[0035] In the above embodiment, after the powder pressing operation is completed and the pressure is released, the first return spring 7 quickly pushes the powder pressing hammer 10 back to its original position using its own elastic force, saving time for the next powder pressing and improving operating efficiency. Moreover, the impact pin 8 is located inside the first return spring 7, making the overall structural layout more compact, reducing space occupation, improving space utilization, and making the overall design of the impact powder press more reasonable and efficient.

[0036] In a preferred embodiment, a balancing assembly is also included, comprising: a first annular cylinder 11 sleeved outside the first return spring 7, one end of which is sleeved on the central main cylinder 2 and slidably engaged with the central main cylinder 2, and the other end of which is connected to the powder pressing hammer 10; an annular abutment piece 9 slidably sleeved outside the first annular cylinder 11, the outer diameter of which is larger than the outer diameter of the powder pressing hammer 10; and a second return spring 12 connecting the first annular cylinder 11 and the annular abutment piece 9, for resetting the annular abutment piece 9 after it slides.

[0037] In the above embodiment, when using the powder tamper, the tamping hammer 10 extends into the powder bowl, and the annular abutment piece 9 covers the opening of the powder bowl. When the tamping hammer 10 sinks and presses down in the powder bowl, the first annular cylinder 11 and the annular abutment piece 9 cooperate with each other, causing the second return spring 12 to compress. In addition, the design of the annular abutment piece 9 can also prevent the powder tamper from shaking during use, improving its stability during use.

[0038] In a preferred embodiment, the second return spring 12 is sleeved on the outside of the first annular cylinder 11, and a second annular cylinder 13 is sleeved on the outside of the second return spring 12. One end of the second annular cylinder 13 is connected to the annular abutment piece 9, and the other end is sleeved on the central main cylinder 2 and slides in cooperation with the central main cylinder 2.

[0039] In the above embodiment, the second return spring 12 is sleeved outside the first annular cylinder 11, and then a second annular cylinder 13 is sleeved outside it. One end of the second annular cylinder 13 is connected to the annular abutment piece 9, and the other end is slidably engaged with the central main cylinder 2. This design has many advantages. It can effectively fix the second return spring 12, preventing it from shifting during compression and extension, and ensuring stable operation of the spring. The sliding engagement between the second annular cylinder 13 and the central main cylinder 2 provides guidance for the movement of the annular abutment piece 9, allowing the annular abutment piece 9 to more smoothly cover the mouth of the powder bowl, further enhancing the sealing effect. In addition, this design hides the second return spring 12, preventing it from being exposed, making the appearance of the powder accelerator more aesthetically pleasing.

[0040] In a preferred embodiment, the moving body 5 is provided with a positioning cylinder 3 at one end facing the handle 1, and the energy storage spring 4 is sleeved inside the positioning cylinder 3.

[0041] In the above embodiment, the positioning cylinder 3 precisely defines the position of the energy storage spring 4, preventing the spring from shifting or twisting during compression and release, ensuring that it always works stably along the axis of the central main cylinder 2, and guaranteeing the accuracy of each energy storage and release. This makes the movement trajectory of the moving body 5 more stable when pushed by the energy storage spring 4, and the force and direction of impacting the striking pin 8 more controllable, thereby ensuring that the pressure applied by the tamping hammer 10 to the coffee powder is stable and uniform, improving the tamping quality, and providing a strong guarantee for making high-quality coffee.

[0042] In a preferred embodiment, the handle 1 is threadedly engaged with the central main cylinder 2.

[0043] In the above embodiment, the handle 1 and the central main cylinder 2 are connected by a threaded connection, which makes it easy to disassemble the handle 1. This not only facilitates the replacement of a damaged handle 1 or the regular maintenance of the handle 1, but also facilitates the assembly of the pressure-boosting impact assembly. Through this design, the powder accelerator is more practical in actual use and can better meet the diverse needs of users.

[0044] Furthermore, unless otherwise explicitly specified or limited, the terms "installation" and "connection" in this application embodiment should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "upper," "lower," "left," "right," "inner," "outer," and "side," etc., are merely for reference to the direction in the accompanying drawings or the usual placement of the product during use. They are only for clearly describing this application and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this application. The terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance; "multiple" refers to at least two. In this application embodiment, the limitations on relative positional relationships such as parallel, perpendicular, and aligned are all relative to the current technological level and are not absolutely strict limitations. Slight deviations are allowed; approximations of parallel, perpendicular, and aligned are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0045] The above are only some embodiments and implementation methods of this application. The protection scope of this application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of this application. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application.

Claims

1. An impact-type powder compactor, characterized in that, include: The main body of the powder press includes a central main cylinder (2), a handle (1) and a powder pressing hammer (10). The handle (1) and the powder pressing hammer (10) are respectively disposed at both ends of the central main cylinder (2), and the powder pressing hammer (10) is elastically fitted with the central main cylinder (2). The pressurized impact assembly includes a movable body (5), an activation switch, a striker (8), and an energy storage spring (4). The movable body (5) is slidably disposed inside the central main cylinder (2). The energy storage spring (4) is disposed inside the central main cylinder (2) between the movable body (5) and the handle (1) for elastic cooperation with the movable body (5). One end of the striker (8) abuts against the powder-pressing hammer (10), and the other end penetrates into the central main cylinder (2) and connects with the movable body (5). The movable body (5) has a positioning groove (14) for docking with the striker (8) at one end facing the striker (8). The excitation switch is located at the opening of the positioning groove (14) for limiting the striker (8). The central main cylinder (2) between the movable body (5) and the handle (1) is provided with an excitation part (17) for exciting the excitation switch. When the handle (1) is pressed until the excitation part (17) is adapted to the excitation switch, the excitation switch is turned on, and the energy storage spring (4) causes the movable body (5) to strike the striker (8). When the handle (1) is released, the elastic action between the powder hammer (10) and the central main cylinder (2) and the elastic action of the energy storage spring (4) cause the movable body (5) to reset.

2. The impact-type powder compactor according to claim 1, characterized in that, The excitation switch includes an excitation spring (16) and an excitation block (6). The side of the annular surface of the moving body (5) is provided with an adjustment groove. The adjustment groove is arranged along the radial direction of the central main cylinder (2), and the bottom of the adjustment groove passes through the positioning groove (14). The excitation block (6) is telescopically arranged in the adjustment groove. The excitation block (6) is provided with a docking hole (15) along the axial direction of the central main cylinder (2). The excitation spring (16) is arranged between the bottom of the adjustment groove and the excitation block (6). When the excitation spring (16) is at its original length, the docking hole (15) is misaligned with the positioning groove (14), and the outside of the excitation block (6) extends out of the groove of the adjustment groove. The excitation part (17) includes an inclined structure disposed in the central main cylinder (2). When the excitation block (6) and the inclined structure abut against each other, the excitation block (6) moves into the adjustment groove and compresses the excitation spring (16), and the docking hole (15) docks with the adjustment groove.

3. The impact-type powder compactor according to claim 1, characterized in that, A first return spring (7) is provided between the central main cylinder (2) and the powder pressing hammer (10); The striking pin (8) is inserted inside the first return spring (7).

4. The impact-type powder compactor according to claim 3, characterized in that, It also includes a balancing component, which comprises: The first annular cylinder (11) is sleeved outside the first reset spring (7), with one end sleeved on the central main cylinder (2) and slidingly engaged with the central main cylinder (2), and the other end connected to the powder pressing hammer (10). An annular abutment piece (9) slidably sleeved on the outside of the first annular cylinder (11) has an outer diameter greater than that of the powder-pressing hammer (10); and A second reset spring (12) connecting the first annular cylinder (11) to the annular abutment piece (9) is used to reset the annular abutment piece (9) after it slides.

5. An impact-type powder compactor according to claim 4, characterized in that, The second return spring (12) is sleeved on the outside of the first annular cylinder (11), and the second return spring (12) is sleeved on the outside of the second annular cylinder (13). One end of the second annular cylinder (13) is connected to the annular abutment piece (9), and the other end is sleeved on the central main cylinder (2) and slides in cooperation with the central main cylinder (2).

6. The impact-type powder compactor according to claim 1, characterized in that, The moving body (5) has a positioning cylinder (3) at one end facing the handle (1), and the energy storage spring (4) is sleeved inside the positioning cylinder (3).

7. The impact-type powder compactor according to claim 1, characterized in that, The handle (1) is threadedly engaged with the central main cylinder (2).

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