Brewing device for a coffee maker
By introducing a locking wall and a locking block into the coffee machine brewing unit, the problems of complex and costly handle rotation structures are solved, achieving stable sealing of the brewing unit and simplifying operation, thus improving the user experience.
Patent Information
- Application Number
- CN202521432632.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-09
AI Technical Summary
In existing coffee machine brewing devices, the handle rotation structure is complex and increases manufacturing costs, and it is difficult to effectively prevent the brewing part from sliding around, which affects the user experience.
The locking wall and locking block are engaged in abutment, and the brewing section is driven to slide through the linkage assembly, which increases the resistance to the downward rotation of the handle. The engagement between the locking block and the locking wall restricts the free rotation of the handle, ensuring that the brewing section is positioned at the end away from the puncture plate.
It improves the sealing of the brewing equipment and the user experience, prevents the brewing equipment from sliding around, simplifies handle operation, and reduces production costs.
Smart Images
Figure CN224671285U_ABST
Abstract
Description
Technical Field
[0001] This utility model discloses a brewing device for a coffee machine, belonging to the technical field of brewing devices. Background Technology
[0002] A coffee machine is a machine for preparing coffee beverages. Traditional components of a coffee machine include a water tank, a heating element, a water pump, and a brewing device. When in use, a capsule containing coffee powder is placed in the brewing device of the coffee machine. Then, the handle drives the transmission mechanism to close the brewing part of the brewing device with the piercing plate to form a sealed chamber. At this time, the coffee capsule is located in the sealed chamber. Then, heated water is pumped into the sealed chamber by the water pump. The water flows through the coffee raw materials to be brewed, and the coffee beverage flows from the water outlet of the coffee machine into the cup.
[0003] In existing technology, the handle of a coffee machine is usually rotated and located on top of the brewing unit. The handle is rotated upward to turn on the coffee machine. After the brewing unit slides to the end, in order to prevent the handle from automatically rotating downward and causing the brewing unit to slide arbitrarily, existing brewing devices usually add two springs to the transmission mechanism, using the principle of the rear wheel bracket of a bicycle, to keep the transmission mechanism in a taut state, thereby limiting the handle from automatically rotating downward. However, adopting the above structure increases the assembly difficulty of the transmission mechanism, and also requires providing sufficient assembly space for the springs, which greatly increases the manufacturing cost of the brewing device. Utility Model Content
[0004] The purpose of this invention is to solve the problem of the complex structure of the linkage assembly. To this end, a brewing device for a coffee machine is provided, which increases the resistance to downward rotation of the handle by the abutting cooperation between the locking wall and the locking block.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A brewing device for a coffee machine includes a brewing body, which has a placement chamber, a puncture plate, and a brewing part slidably installed in the placement chamber. The placement chamber has a fixing part for a positioning capsule. A handle is rotatably connected to the top of the brewing body. The handle drives the brewing part to slide through a linkage assembly so that the brewing part is tightly attached to the puncture plate to form a sealed chamber. The linkage assembly includes a pull rod and a rotating bracket. The rotating bracket is rotatably connected to the brewing body. The two ends of the pull rod are respectively hinged to the handle and the rotating bracket. The rotation of the rotating bracket drives the brewing part to slide. A locking wall is provided on the side wall of the pull rod. A locking block is provided on the rotating bracket. When the handle is rotated upward and away from the brewing body to drive the brewing part away from the puncture plate, when the brewing part slides to the end away from the puncture plate, the locking block abuts against the locking wall to increase the resistance to the downward rotation of the handle.
[0007] The beneficial effects of using this utility model are:
[0008] In this invention, the handle is rotatably connected to a rotating bracket via a pull rod. During handle rotation, the rotating bracket causes the brewing part to slide within the brewing body. As the handle rotates upwards and away from the brewing body, the brewing part slides towards the end away from the puncture plate, thus opening the brewing device. As the handle rotates downwards and closer to the brewing body, the brewing part slides towards the end of the puncture plate until it abuts against the puncture plate, forming a sealed chamber. A locking wall is provided on the side wall of the pull rod, and a locking block is provided on the rotating bracket. When the brewing part slides to the end away from the puncture plate, the locking wall abuts against the locking block. This abutment increases the resistance to the relative rotation of the pull rod and the rotating bracket, enabling mutual positioning of the pull rod and the rotating bracket. This overcomes the handle's own weight, restricts its arbitrary rotation, and allows the brewing part to be positioned at the end away from the puncture plate, keeping the brewing device fully open. This prevents the brewing device from sliding arbitrarily and affecting capsule installation, thus improving the user experience.
[0009] Preferably, the rotating bracket has a rotating part hinged to the brewing body and a rotating shaft hinged to the pull rod. The locking block is disposed on the outer periphery of the rotating part. When the brewing part slides to the end away from the puncture plate, the locking block abuts against the locking wall. In the height direction, the center of the rotating part is higher than the end point of the locking block away from the rotating part. With the aforementioned technical solution, since the locking block is fixed to the outer periphery of the rotating part, the center of the rotating part is the rotation center of the locking block as the rotating bracket rotates. When the brewing part slides to the end away from the puncture plate, when the handle is rotated downward, the rotating bracket will rotate upward under the action of the pull rod. Similarly, the locking block rotates upward with the rotating bracket. Since the locking block is lower than the center of the rotating part, the end point of the locking block will be closer to the pull rod during the upward rotation, thus interfering with the locking wall of the pull rod. This achieves the abutting engagement between the locking block and the locking wall, creating resistance to the locking block to increase the external force required for the upward rotation of the locking block, which helps to improve the positioning stability of the pull rod and the rotating bracket.
[0010] Preferably, the outer periphery of the end of the pull rod connected to the rotating shaft is provided with an outwardly extending limiting plate, and the rotating bracket is provided with a baffle. A groove is formed between the baffle and the rotating bracket for the limiting plate to extend into. The baffle and the limiting plate are matched to restrict the pull rod from detaching from the rotating shaft along the axial direction. By adopting the aforementioned technical solution, the matching of the baffle and the limiting plate can limit the swaying distance of the pull rod in the axial direction of the rotating shaft, prevent the pull rod from detaching from the rotating shaft, and make the connection between the pull rod and the rotating bracket more stable and reliable.
[0011] Preferably, the end of the locking block has a curved surface structure. By adopting the aforementioned technical solution, the curved surface structure can reduce the friction between the locking block and the locking wall, slow down the wear of the locking block and the locking wall, and help extend the service life of the locking block and the locking wall. In addition, the curved surface structure of the locking block can act as a guide, facilitating the locking block's contact with and disengagement from the locking wall, preventing jamming between the locking block and the locking wall, and ensuring smooth rotation of the rotating bracket and the pull rod.
[0012] Preferably, the hinge position between the rotating bracket and the brewing body is the first hinge point. The connecting rod assembly also includes a connecting rod. One end of the connecting rod is hinged to the brewing part to form a second hinge point, and the other end is rotatably connected to the rotating bracket through a rotating shaft. The brewing body is provided with a stop part. When the brewing part abuts against the puncture plate, the axis of the rotating shaft has crossed the connecting line connecting the first hinge point and the second hinge point, and the rotating bracket abuts against the stop part to limit the rotating shaft from moving away from the connecting line. Using the aforementioned technical solution, when the brewing section abuts against the puncture plate, the rotating shaft crosses the connecting line, which can limit the brewing section from driving the connecting rod and the rotating shaft to rotate in the opposite direction. In addition, the rotating bracket abuts against the stop part, limiting the rotating shaft from rotating in the direction away from the connecting line, that is, limiting the rotating bracket from driving the rotating shaft to continue rotating. At this time, the rotating bracket and the connecting rod form a positioning. The continued rotation or reverse rotation of the rotating bracket will drive the brewing section away from the puncture plate, thus also positioning the brewing section, keeping the brewing section and the puncture plate in close contact, forming a sealing chamber with better sealing performance, which helps to improve the sealing performance of the sealing chamber. Secondly, through the cooperation of the connecting rod and the rotating bracket, the brewing section can be automatically positioned, eliminating the need for the user to apply force to the handle for a long time, saving manual labor and helping to improve the user experience.
[0013] Preferably, the connecting line is parallel to the sliding direction of the brewing section, and the connecting line coincides with the central axis of the brewing section. Using the aforementioned technical solution, the rotating bracket rotates, driving the brewing section to slide via the connecting rod. The connecting line coincides with the central axis of the brewing section, meaning the hinge position between the connecting rod and the brewing section is on the central axis. This allows for more even force distribution on the brewing section, improving the smoothness of its sliding and making the rotation of the handle and connecting rod assembly smoother.
[0014] Preferably, the connecting rod has a groove at one end near the rotating shaft for the rotating shaft to slide on. An elastic element is provided inside the connecting rod, acting on the rotating shaft to give it a tendency to slide away from the brewing section. Using the aforementioned technical solution, when the brewing section abuts against the piercing plate, the distance between the first hinge point and the second hinge point remains unchanged, while the rotating shaft can slide relative to the groove. This maintains the distance between the first and second hinge points while allowing the rotating shaft to pass over the connecting line.
[0015] Preferably, the brewing section includes a water inlet seat and a brewing chamber. The brewing chamber is installed inside the water inlet seat, and the end of the brewing chamber away from the puncture plate has a water inlet. The water inlet seat has a puncture part that extends through the water inlet into the brewing chamber. A first sealing ring is provided on the outer periphery of the brewing chamber, and the outer periphery of the first sealing ring abuts against the inner wall of the water inlet seat. Using the aforementioned technical solution, the first sealing ring can form a seal between the water inlet seat and the brewing chamber, ensuring that water in the water inlet seat can enter the brewing chamber from the water inlet, preventing the possibility of water leakage, and helping to improve the sealing performance between the water inlet seat and the brewing chamber.
[0016] Preferably, the outer periphery of the brewing chamber is provided with a first annular groove, and a first sealing ring is fitted into the first annular groove. The first sealing ring is V-shaped and abuts against the inner wall of the water inlet seat to maintain a sealing fit. By adopting the aforementioned technical solution, the V-shaped first sealing ring can increase the degree of deformation of the first sealing ring, thereby reducing the friction between the first sealing ring and the water inlet seat. This facilitates easier sliding of the brewing chamber relative to the water inlet seat, reduces the possibility of damage to the first sealing ring, and helps to improve the service life of the first sealing ring.
[0017] Preferably, the inner wall of the brewing chamber is provided with a second annular groove, and a second sealing ring is installed in the second annular groove. When the brewing chamber and the puncture plate are tightly attached to form a sealed chamber, the capsule is located inside the sealed chamber, and the outer wall of the capsule is sealed with the second sealing ring. The inner diameter of the second sealing ring gradually decreases as it moves away from the puncture plate. Using the aforementioned technical solution, the second sealing ring can seal the capsule and the inner wall of the brewing chamber, preventing water from flowing directly from the puncture plate to the coffee machine's outlet without passing through the capsule's interior. It also allows more water to enter the capsule, helping to improve the coffee brewing effect. Furthermore, the inner diameter of the second sealing ring gradually decreases as it moves away from the puncture plate; that is, the inclined shape of the inner wall of the second sealing ring is adapted to the direction in which the capsule is inserted into the brewing chamber. While ensuring a seal between the second sealing ring and the capsule, it also reduces damage to the second sealing ring, helping to extend its service life.
[0018] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings:
[0020] Figure 1 This is a cross-sectional view of the brewing device of the coffee machine of this utility model when it is in the open state;
[0021] Figure 2 This is a schematic diagram of the handle and connecting rod assembly in the brewing device of the coffee machine of this utility model;
[0022] Figure 3 This is a schematic diagram of the connecting components in the brewing device of the coffee machine of this utility model;
[0023] Figure 4 This is a schematic diagram of the rotating support structure in the brewing device of the coffee machine of this utility model;
[0024] Figure 5 This is a schematic diagram of the pull rod structure in the brewing device of the coffee machine of this utility model;
[0025] Figure 6 This is a cross-sectional view of the brewing device of the coffee machine of this utility model when it is in the off state;
[0026] Figure 7 This is a schematic diagram of the brewing main body in the brewing device of the coffee machine of this utility model;
[0027] Figure 8 This is a cross-sectional view of the brewing body in the brewing apparatus of the coffee machine of this utility model;
[0028] Figure 9 This is a schematic diagram of the brewing section in the brewing apparatus of the coffee machine of this utility model;
[0029] Figure 10 This is a schematic diagram of the fixing part in the brewing device of the coffee machine of this utility model. Figure 1 ;
[0030] Figure 11 This is a schematic diagram of the fixing part in the brewing device of the coffee machine of this utility model. Figure 2 .
[0031] Reference numerals: 1. Brewing body; 11. Placement chamber; 12. Feed inlet; 13. Inlet groove; 14. Guide rail; 15. Coffee spout; 16. Stop; 2. Brewing section; 21. Water inlet seat; 211. Piercing part; 212. Water inlet pipe; 213. Sliding block; 214. Hanging ear; 22. Brewing chamber; 221. Water inlet; 222. First sealing ring; 223. Second sealing ring; 224. Limit buckle; 3. Piercing plate; 31. Sealing element; 41. Pull rod; 411. Lock 412. Fixed wall; 42. Limiting plate; 42. Rotating bracket; 421. Rotating part; 4211. First hinge point; 422. Rotating shaft; 423. Locking block; 424. Baffle; 425. Abutting part; 43. Connecting rod; 431. Second hinge point; 432. Slide groove; 433. Elastic element; 44. Connecting line; 5. Handle; 6. Fixed part; 61. Blocking part; 62. Support part; 63. Guide part; 64. Stripping plate; 65. Supporting wall; 7. Capsule; 71. Cap brim. Detailed Implementation
[0032] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.
[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0034] 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.
[0035] like Figures 1 to 11 As shown, this embodiment illustrates a coffee brewing device, including a brewing body 1. The brewing body 1 has a placement cavity 11, a puncture plate 3, and a brewing part 2 slidably installed in the placement cavity 11. The placement cavity 11 has a fixing part 6 for a positioning capsule 7. A handle 5 is rotatably connected to the top of the brewing body 1. The handle 5 drives the brewing part 2 to slide through a linkage assembly so that the brewing part 2 and the puncture plate 3 are tightly attached to form a sealed chamber. The linkage assembly includes a pull rod 41 and a rotating bracket 42. The rotating bracket 42 is rotatably connected to the brewing body 1. The two ends of the pull rod 41 are respectively hinged to the handle 5 and the rotating bracket 42. The rotation of the rotating bracket 42 drives the brewing part 2 to slide. The side wall of the pull rod 41 has a locking wall 411. The rotating bracket 42 has a locking block 423. The handle 5 rotates upward and away from the brewing body 1 to drive the brewing part 2 away from the puncture plate 3. When the brewing part 2 slides to the end away from the puncture plate 3, the locking block 423 abuts against the locking wall 411 to increase the resistance of the handle 5 rotating downward.
[0036] In this embodiment, the handle 5 is rotatably connected to the rotating bracket 42 via the pull rod 41. During the rotation of the handle 5, the rotating bracket 42 drives the brewing part 2 to slide within the brewing body 1. As the handle 5 rotates upward and moves away from the brewing body 1, the brewing part 2 slides toward the end away from the puncture plate 3 to complete the opening of the brewing device. As the handle 5 rotates downward and moves closer to the brewing body 1, the brewing part 2 slides toward the end of the puncture plate 3 until the brewing part 2 and the puncture plate 3 abut against each other to form a sealed chamber. A locking wall 411 is provided on the side wall of the pull rod 41, and a locking block is provided on the rotating bracket 42. 423. When the brewing section 2 slides to the end away from the puncture plate 3, the locking wall 411 abuts against the locking block 423. The abutting cooperation between the locking wall 411 and the locking block 423 increases the resistance to the relative rotation of the pull rod 41 and the rotating bracket 42, which can realize the mutual positioning of the pull rod 41 and the rotating bracket 42. This can overcome the weight of the handle 5 itself, limit the random rotation of the handle 5, and enable the brewing section 2 to be positioned at the end away from the puncture plate 3. This keeps the brewing device fully open, prevents the brewing device from sliding randomly and affecting the installation of the capsule 7, and helps to improve the user experience.
[0037] like Figure 1 As shown, the linkage assembly in this embodiment further includes a connecting rod 43. The top of the brewing body 1 has a shaft hole. The handle 5 is rotatably connected to the brewing body 1 through the shaft hole. The handle 5 forms a grip for the user to hold on one side of the shaft hole, and a hinged end rotatably connected to the pull rod 41 on the other side. The rotating bracket 42 is located inside the brewing body 1. The rotating bracket 42 has a rotating part 421 rotatably connected to the brewing body 1. The hinged position between the rotating part 421 and the brewing body 1 is the first hinge point 4211. The rotating bracket 42 rotates... When rotating, the rotating part 421 rotates around the first hinge point 4211, and in the height direction, the first hinge point 4211 is lower than the shaft hole. The rotating bracket 42 is provided with a rotating shaft 422 and a rotating shaft. The rotating shaft 422 is rotatably connected to the pull rod 41, and the rotating shaft is rotatably connected to the connecting rod 43. The end of the connecting rod 43 away from the rotating bracket 42 is hinged to the brewing part 2. The hinge position between the connecting rod 43 and the brewing part 2 is the second hinge point 431. During the rotation of the connecting rod 43, it rotates around the second hinge point 431.
[0038] In this embodiment, the process of the handle 5 driving the brewing unit 2 to slide is as follows: When the brewing device needs to be opened, the handle 5 rotates upward around the shaft hole, and the hinge end of the handle 5 pushes the pull rod 41 downward. The pull rod 41 pushes the rotating bracket 42 to rotate downward around the first hinge point 4211 through the rotating shaft 422. The rotating bracket 42 drives the connecting rod 43 to rotate downward around the second hinge point 431 through the rotating shaft. During the downward rotation of the connecting rod 43, the second hinge point 431 moves closer to the first hinge point 4211, that is, the connecting rod 43 pulls the brewing unit 2 away from the piercing plate 3, so that the brewing device is in the open state. When the brewing device needs to be shut down, the handle 5 rotates downward around the shaft hole, and the hinge end of the handle 5 pulls the pull rod 41 upward. The pull rod 41 pulls the rotating bracket 42 upward around the first hinge point 4211 through the rotating shaft 422. The rotating bracket 42 drives the connecting rod 43 to rotate upward around the second hinge point 431 through the rotating shaft. During the upward rotation of the connecting rod 43, the second hinge point 431 moves away from the first hinge point 4211. That is, the connecting rod 43 pushes the brewing part 2 closer to the puncture plate 3 until the brewing part 2 and the puncture plate 3 come into contact to form a sealed chamber, so that the brewing part 2 is in the closed state.
[0039] like Figure 2 As shown, in this embodiment, the locking wall 411 is formed on the side wall of the pull rod 41, and the locking wall 411 is located between the two ends of the pull rod 41. The locking block 423 is disposed on the outer periphery of the rotating part 421. When the brewing part 2 slides to the end away from the puncture plate 3, the locking block 423 abuts against the locking wall 411. In the height direction, the center of the rotating part 421 is higher than the end point of the locking block 423 away from the rotating part 421, that is, the first hinge point 4211 is higher than the end point of the locking block 423. When the brewing part 2 slides to abut against the puncture plate 3, the locking block 423 disengages from the locking wall 411. In the height direction, the end point of the locking block 423 is higher than the first hinge point 4211. Since the locking block 423 is fixed to the outer periphery of the rotating part, the locking block 423 rotates with the rotation. During the rotation of the bracket 42, the first hinge point 4211 is the rotation center of the locking block 423. When the brewing part 2 slides to the end away from the puncture plate 3, when the handle 5 is rotated downward, the rotating bracket 42 will rotate upward under the action of the pull rod 41. Similarly, the locking block 423 rotates upward with the rotating bracket 42. Since the locking block 423 is lower than the first hinge point 4211, during the upward rotation, the end point of the locking block 423 will be closer to the pull rod 41, which will interfere with the locking wall 411 of the pull rod 41 to achieve the abutment cooperation between the locking block 423 and the locking wall 411, forming resistance on the locking block 423 to increase the external force required for the locking block 423 to rotate upward, which helps to improve the positioning stability of the pull rod 41 and the rotating bracket 42.
[0040] To prevent the locking block 423 from jamming with the locking wall 411, such as Figure 2 and Figure 3 As shown, the end of the locking block 423 in this embodiment has a curved surface structure. The curved surface structure can reduce the friction between the locking block 423 and the locking wall 411, reduce the wear of the locking block 423 and the locking wall 411, and help extend the service life of the locking block 423 and the locking wall 411. In addition, the curved surface structure of the locking block 423 can play a guiding role, so that the locking block 423 can form contact with the locking wall 411 and disengage from the locking wall 411, prevent the locking block 423 and the locking wall 411 from jamming, and ensure the smooth rotation of the rotating bracket 42 and the pull rod 41.
[0041] like Figures 3 to 5 As shown, the linkage assembly in this embodiment includes two pull rods 41. Two opposing rotating shafts 422 are provided on both sides of the rotating bracket 42, and the two rotating shafts 422 are coaxially arranged. The two pull rods 41 are rotatably connected to the two rotating shafts 422 respectively. An outwardly extending limiting plate 412 is provided on the outer periphery of the end of the pull rod 41 connected to the rotating shaft 422. The rotating bracket 42 is provided with a baffle 424, and a groove is formed between the baffle 424 and the rotating bracket 42 for the limiting plate 412 to extend into. The baffle 424 and the limiting plate 412 are matched to limit the pull rod 41 from disengaging from the rotating shaft 422 along its axial direction. The matching of the baffle 424 and the limiting plate 412 can limit the swaying distance of the pull rod 41 in the axial direction of the rotating shaft 422, preventing the pull rod 41 from disengaging from the rotating shaft 422, and making the connection between the pull rod 41 and the rotating bracket 42 more stable and reliable.
[0042] like Figure 6As shown, in this embodiment, the brewing body 1 is provided with a stop 16, which is located on the inner wall of the top of the brewing body 1. That is, in the height direction, the stop 16 is higher than the first hinge point 4211. In addition, the connecting line 44 connecting the first hinge point 4211 and the second hinge point 431 is parallel to the sliding direction of the brewing part 2. When the brewing device is in the open state, the rotating shaft on the rotating bracket 42 is below the connecting line 44. As the handle 5 is rotated downward, the rotating bracket 42 rotates upward under the action of the pull rod 41. The rotating bracket 42 drives the rotating shaft to rise, and the connecting rod 43 rotates upward relative to the rotating bracket 42, pushing the brewing part 2 closer to the piercing plate 3. When the brewing part 2 abuts against the piercing plate 3, the rotating shaft passes over the connecting line 44, so that the axis of the rotating shaft is higher than the connecting line 44, thereby restricting the downward rotation of the rotating bracket 42. At the same time, the abutting part 425 of the rotating bracket 42 abuts against the stop 16, thereby restricting the downward rotation of the rotating bracket 42. As the rotating bracket 42 continues to rotate upwards, when the brewing section 2 abuts against the puncture plate 3, the rotating shaft passes over the connecting line 44, which can restrict the brewing section 2 from driving the connecting rod 43 and the rotating shaft to rotate downwards, that is, restrict the rotating shaft from rotating in the opposite direction. In addition, the abutting part 425 of the rotating bracket 42 abuts against the stop part 16, restricting the rotating shaft from rotating upwards, that is, restricting the rotating bracket 42 from driving the rotating shaft to continue rotating. At this time, the rotating bracket 42 and the connecting rod 43 form a positioning. The continued rotation or reverse rotation of the rotating bracket 42 will drive the brewing section 2 away from the puncture plate 3, so it can also position the brewing section 2, so that the brewing section 2 and the puncture plate 3 are in close contact, forming a sealing chamber with better sealing performance, which helps to improve the sealing performance of the sealing chamber. Secondly, through the cooperation of the connecting rod 43 and the rotating bracket 42, the automatic positioning of the brewing section 2 is realized, which eliminates the need for the user to apply force to the handle 5 for a long time, saves manual labor, and helps to improve the user experience.
[0043] In addition, to make the force on the brewing part 2 more even, the connecting line 44 in this embodiment is aligned with the central axis of the brewing part 2. The rotating bracket 42 rotates and drives the brewing part 2 to slide through the connecting rod 43. The connecting line 44 is aligned with the central axis of the brewing part 2, and the hinge position of the connecting rod 43 and the brewing part 2 is on the central axis, that is, the second hinge point 431 is on the central axis. This can make the force on the brewing part 2 more even, so as to improve the smoothness of the sliding of the brewing part 2 and make the rotation of the handle 5 and the connecting rod assembly smoother.
[0044] like Figure 6As shown, in this embodiment, the connecting rod 43 has an internal cavity, and an elastic element 433 is installed inside the cavity. The end of the connecting rod 43 near the rotating shaft has a groove 432 for the rotating shaft to slide. The rotating shaft is positioned within the groove 432. The elastic element 433 acts on the rotating shaft, causing it to slide away from the brewing section 2. When the brewing section 2 comes into contact with the puncture plate 3, the brewing section 2 can no longer slide away from the rotating support 42. At this time, the distance between the first hinge point 4211 and the second hinge point 431 remains unchanged. When the brewing section 2 just contacts the puncture plate 3, the rotating shaft is still below the connecting line 44. As the rotating bracket 42 continues to rotate upward, the rotating shaft slides along the slide groove 432 toward the brewing section 2, thereby compressing the elastic element 433. As the rotating shaft slides relative to the slide groove 432, the connecting rod 43 can continue to rotate upward. When the axis of the rotating shaft passes the connecting line 44, the rotating shaft will slide along the slide groove 432 away from the brewing section 2 as the rotating bracket 42 rotates. The rotating shaft slides relative to the slide groove 432, while keeping the distance between the first hinge point 4211 and the second hinge point 431 unchanged, so that the rotating shaft can pass the connecting line 44, preventing the possibility of the connecting rod 43 and the rotating bracket 42 getting stuck.
[0045] Furthermore, when the abutting part 425 abuts against the stop part 16, the interaction between the elastic element 433 and the rotating shaft will apply a thrust to the brewing part 2, allowing the brewing part 2 to remain in contact with the puncture plate 3, thereby improving the sealing between the brewing part 2 and the puncture plate 3. Secondly, since the stop part 16 abuts against the abutting part 425, restricting the rotating bracket 42 from continuing to rotate upward, the stop part 16 will restrict the angle of downward rotation of the handle 5. Therefore, opening the brewing device requires the handle 5 to rotate upward. In addition, during the process of opening the brewing part 2, it is necessary to overcome the elastic force of the elastic element 433. Therefore, the upward rotation of the handle 5 requires a large external force, which can effectively prevent the handle 5 from rotating upward at will and causing the brewing part 2 to open accidentally, further improving the sealing between the brewing part 2 and the puncture plate 3.
[0046] like Figure 7 and Figure 8 As shown, in this embodiment, the top of the brewing body 1 is provided with an inlet 12 for the capsule 7 to enter the placement cavity 11. Both sides of the inlet 12 are provided with guide grooves 13. A fixing part 6 is provided in the guide groove 13. The capsule 7 has an outwardly protruding cap 71. After the capsule 7 is put into the inlet 12, the cap 71 is in the guide groove 13 and slides down the guide groove 13 to enter the placement cavity 11. When the capsule 7 slides down to the point where the cap 71 contacts the fixing part 6, the capsule 7 is positioned in the placement cavity 11. At this time, the capsule 7 is suspended in the placement cavity 11 at a certain angle to the brewing part 2. The bottom of the brewing body 1 is provided with a dropping port. After the coffee in the capsule 7 is brewed and the brewing device is opened, the capsule 7 falls from the dropping port and detaches from the brewing body 1.
[0047] like Figure 1 and Figure 6 As shown, in this embodiment, the brewing section 2 includes a water inlet seat 21 and a brewing chamber 22. The brewing body 1 has a horizontally arranged guide rail 14 inside. The outer surface of the brewing section 2 has a sliding block 213, which slides with the guide rail 14 to achieve a sliding connection between the brewing section 2 and the brewing body 1. The end of the water inlet seat 21 facing the piercing plate 3 forms an opening. The brewing chamber 22 is installed into the water inlet seat 21 along the opening. The water inlet seat 21 has a hanging ear 214, and the outer surface of the brewing chamber 22 has a limiting buckle 22. 4. The ear loop 214 is provided with a hole for inserting the limiting buckle 224. The limiting buckle 224 is fastened to the hole to connect the brewing chamber 22 and the water inlet seat 21. In addition, the hole on the ear loop 214 is a strip-shaped hole, and the length direction of the hole is parallel to the sliding direction of the brewing part 2, so that the brewing chamber 22 can slide relative to the water inlet seat 21. The cooperation between the limiting buckle 224 and the ear loop 214 further restricts the brewing chamber 22 from detaching from the water inlet seat 21, making the connection between the brewing chamber 22 and the water inlet seat 21 more reliable.
[0048] In this embodiment, the brewing chamber 22 has a first annular groove on its outer periphery, and a first sealing ring 222 is fitted inside the first annular groove. The outer periphery of the first sealing ring 222 abuts against the inner wall of the water inlet seat 21 to maintain a sealing fit between the first sealing ring 222 and the inner wall of the water inlet seat 21. In addition, the water inlet seat 21 is connected to a water inlet pipe 212, and a one-way valve is installed in the water inlet pipe 212. The end of the brewing chamber 22 away from the puncture plate 3 has a water inlet 221, and the inner wall of the water inlet seat 21 has a puncture part 211. The brewing chamber 22 is installed in... After the water inlet seat 21, the puncture part 211 extends through the water inlet 221 into the brewing chamber 22. Since the first sealing ring 222 forms a seal between the outer wall of the brewing chamber 22 and the inner wall of the water inlet seat 21, water enters the water inlet seat 21 from the water inlet pipe 212 and flows into the brewing chamber 22 through the water inlet 221. The first sealing ring 222 can prevent water from leaking between the water inlet seat 21 and the brewing chamber 22, avoid water leakage in the brewing section 2, and help improve the sealing between the water inlet seat 21 and the brewing chamber 22.
[0049] In addition, in this embodiment, the first sealing ring 222 is V-shaped, which can increase the deformation of the first sealing ring 222 and thus reduce the friction between the first sealing ring 222 and the water inlet seat 21. This makes it easier for the brewing chamber 22 to slide relative to the water inlet seat 21, reduces the possibility of damage to the first sealing ring 222, and helps to improve the service life of the first sealing ring 222.
[0050] In this embodiment, the inner wall of the brewing chamber 22 is provided with a second annular groove, and a second sealing ring 223 is installed in the second annular groove. When the brewing chamber 22 and the puncture plate 3 are tightly attached to form a sealed chamber, the capsule 7 is located inside the sealed chamber, and the outer wall of the capsule 7 is sealed with the second sealing ring 223. The second sealing ring 223 is also V-shaped, and the inner diameter of the second sealing ring 223 gradually decreases as it moves away from the puncture plate 3. The second sealing ring 223 can form a seal between the capsule 7 and the inner wall of the brewing chamber 22, preventing water from passing through the inside of the capsule 7. The water flows directly from the puncture plate 3 into the outlet of the coffee machine, allowing more water to enter the capsule 7, which helps improve the brewing effect of coffee. In addition, the inner diameter of the second sealing ring 223 gradually decreases as it moves away from the puncture plate 3. That is, the inclined shape of the inner wall of the second sealing ring 223 is adapted to the direction in which the capsule 7 is inserted into the brewing chamber 22. While ensuring that the second sealing ring 223 and the capsule 7 form a seal, it can also reduce damage to the second sealing ring 223 and help extend the service life of the second sealing ring 223.
[0051] like Figure 10 and Figure 11 As shown, in this embodiment, the fixing part 6 includes a blocking part 61, a supporting part 62, a guiding part 63, a discharge plate 64, and a supporting wall 65. The supporting wall 65 is assembled with the brewing body 1 to achieve the connection between the supporting wall 65 and the brewing body 1. The supporting part 62 is formed on the upper end face of the fixing part 6 and is located in the inlet groove 13. After the cap edge 71 of the capsule 7 slides down the inlet groove 13 to the fixing part 6, the supporting part 62 supports the cap edge 71 of the capsule 7, so that the capsule 7 is positioned in the placement cavity 11. The blocking part 61 is provided at the end of the supporting part 62 near the puncture plate 3. The blocking part 61 extends upward to prevent the capsule 7 from sliding out of the puncture plate 3. The guiding part 63 and the discharge plate 64 are both formed on the upper end face of the fixing part 62. As the brewing section 2 slides towards the puncture plate 3, the capsule 7 enters the brewing chamber 22. Simultaneously, the brewing chamber 22 pushes the capsule 7 towards the puncture plate 3. Under the action of the guide section 63, the capsule 7 passes over the blocking section 61 and comes into contact with the puncture plate 3. After the coffee in the capsule 7 has finished brewing, the brewing chamber 22 moves away from the puncture plate 3. Under the action of the second sealing ring 223, the capsule 7 will move away from the puncture plate 3 along with the brewing chamber 22. When the cap 71 of the capsule 7 comes into contact with the ejector plate 64, the capsule 7 will detach from the brewing chamber 22 under the action of the ejector plate 64. After the capsule 7 has completely detached from the brewing chamber 22, the capsule 7 will fall from the crumb outlet under the action of gravity.
[0052] The process of making coffee in this embodiment is as follows: First, the capsule 7 is placed into the feed port 12 of the brewing body 1. The cap 71 of the capsule 7 is aligned with the guide groove 13 of the brewing body 1, so that the capsule 7 slides down the guide groove 13 to the support part 62 of the fixing part 6, and then the capsule 7 is positioned in the placement cavity 11. At this time, the blocking part 61 of the fixing part 6 can restrict the capsule 7 from sliding out of the piercing plate 3. At this time, the capsule 7 is suspended in the brewing body 1 at a certain angle.
[0053] Then, the drive handle 5 rotates downward around the shaft hole, and the pull rod 41 moves upward under the action of the handle 5, driving the rotating bracket 42 to rotate upward around the first hinge point 4211. The rotating bracket 42 drives the connecting rod 43 to rotate upward around the second hinge point 431 through the rotating shaft. At the same time, the connecting rod 43 pushes the brewing part 2 to slide towards the puncture plate 3. Since the tail end of the capsule 7 is conical, that is, the end of the capsule 7 facing the brewing part 2 is conical, as the brewing part 2 slides, the capsule 7 enters the brewing chamber 22 from the opening of the brewing chamber 22. Then, the brewing part 2 continues to push the capsule 7 to slide towards the puncture plate 3. Under the action of the brewing part 2, the capsule 7 forcibly squeezes through the blocking part 61 of the fixing part 6, thus abutting against the puncture plate 3. When the rotating shaft of the rotating bracket 42 crosses the connecting line 44, and the abutting part 425 of the rotating bracket 42 abuts against the stop part 16, the brewing... The brewing chamber 22 presses the cap edge 71 of the capsule 7 onto the sealing element 31 of the puncture plate 3. The front end of the capsule 7 is punctured by the puncture plate 3 to form a crack, thus forming a sealed chamber between the brewing chamber 22 and the puncture plate 3. At the same time, the outer wall of the capsule 7 forms a sealing fit with the second sealing ring 223 inside the brewing chamber 22. In addition, the puncture part 211 of the water inlet seat 21 penetrates through the water inlet 221 and punctures the tail end of the capsule 7, forming a crack at the tail end of the capsule 7. Then, water is supplied to the water inlet seat 21 through the water inlet pipe 212. The water enters the brewing chamber 22 through the water inlet 221 and enters the capsule 7 along the crack, mixing with the coffee inside the capsule 7. After complete brewing, the coffee liquid flows through the crack at the front end of the capsule 7 to the puncture plate 3. The front end of the brewing body 1 is provided with a coffee nozzle 15 that communicates with the puncture plate 3, and the coffee liquid finally flows out from the coffee nozzle 15.
[0054] After the coffee liquid has completely flowed out, the drive handle 5 rotates upward, which drives the pull rod 41 to move downward and causes the rotating bracket 42 to rotate downward around the first hinge point 4211. The rotating bracket 42 drives the connecting rod 43 to rotate downward around the second hinge point 431 through the rotating shaft. At the same time, the connecting rod 43 pushes the brewing part 2 away from the puncture plate 3. At this time, under the action of the second sealing ring 223, the capsule 7 slides backward synchronously with the brewing part 2. When the cap 71 of the capsule 7 is blocked by the ejector plate 64 of the fixing part 6, the ejector plate 64 then pulls the capsule 7 out of the brewing chamber 22 so that the capsule 7 falls from the slag outlet of the brewing body 1. When the handle 5 rotates upward to about 90°, the brewing part 2 stops moving. At this time, the locking block 423 of the rotating bracket 42 abuts against the locking wall 411 of the pull rod 41 to increase the resistance of the handle 5 rotating downward, thereby achieving the positioning of the brewing part 2.
[0055] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.
Claims
1. A brewing apparatus for a coffee machine, comprising a brewing body (1), wherein the brewing body (1) has a placement cavity (11), a puncture plate (3), and a brewing part (2) slidably installed in the placement cavity (11), wherein the placement cavity (11) has a fixing part (6) for a positioning capsule (7), and a handle (5) is rotatably connected to the top of the brewing body (1), wherein the handle (5) drives the brewing part (2) to slide through a linkage assembly so that the brewing part (2) and the puncture plate (3) are tightly fitted to form a sealed chamber, characterized in that, The linkage assembly includes a pull rod (41) and a rotating bracket (42). The rotating bracket (42) is rotatably connected to the brewing body (1). The two ends of the pull rod (41) are respectively hinged to the handle (5) and the rotating bracket (42). The rotating bracket (42) rotates to drive the brewing part (2) to slide. The side wall of the pull rod (41) is provided with a locking wall (411). The rotating bracket (42) is provided with a locking block (423). The handle (5) rotates upward and away from the brewing body (1) to drive the brewing part (2) away from the puncture plate (3). When the brewing part (2) slides to the end away from the puncture plate (3), the locking block (423) abuts against the locking wall (411) to increase the resistance of the handle (5) rotating downward.
2. The brewing apparatus for a coffee machine according to claim 1, characterized in that, The rotating bracket (42) has a rotating part (421) hinged to the brewing body (1) and a rotating shaft (422) hinged to the pull rod (41). The locking block (423) is disposed on the outer periphery of the rotating part (421). When the brewing part (2) slides to the end away from the puncture plate (3), in the height direction, the center of the rotating part (421) is higher than the end point of the locking block (423) away from the rotating part (421).
3. The brewing apparatus for a coffee machine according to claim 2, characterized in that, The outer periphery of the end of the pull rod (41) connected to the rotating shaft (422) is provided with an outwardly extending limiting plate (412). The rotating bracket (42) is provided with a baffle (424). A groove is formed between the baffle (424) and the rotating bracket (42) for the limiting plate (412) to extend into. The baffle (424) and the limiting plate (412) are matched to limit the pull rod (41) from disengaging from the rotating shaft (422) along the axial direction of the rotating shaft (422).
4. The brewing apparatus for a coffee machine according to claim 1, characterized in that, The end of the locking block (423) has a curved surface structure.
5. The brewing apparatus for a coffee machine according to claim 1, characterized in that, The hinge position between the rotating bracket (42) and the brewing body (1) is the first hinge point (4211). The connecting rod assembly also includes a connecting rod (43). One end of the connecting rod (43) is hinged to the brewing part (2) to form a second hinge point (431). The other end is rotatably connected to the rotating bracket (42) through a rotating shaft. The brewing body (1) is provided with a stop part (16). When the brewing part (2) abuts against the piercing plate (3), the axis of the rotating shaft has crossed the connecting line (44) connecting the first hinge point (4211) and the second hinge point (431). The rotating bracket (42) abuts against the stop part (16) to limit the rotating shaft from moving away from the connecting line (44).
6. The brewing apparatus for a coffee machine according to claim 5, characterized in that, The connecting line (44) is parallel to the sliding direction of the brewing section (2), and the connecting line (44) coincides with the central axis of the brewing section (2).
7. The brewing apparatus for a coffee machine according to claim 5, characterized in that, The connecting rod (43) has a groove (432) at one end near the rotating shaft for sliding the rotating shaft. An elastic element (433) is provided inside the connecting rod (43). The elastic element (433) acts on the rotating shaft to make the rotating shaft have a sliding tendency away from the brewing section (2).
8. The brewing apparatus for a coffee machine according to claim 1, characterized in that, The brewing section (2) includes a water inlet seat (21) and a brewing chamber (22). The brewing chamber (22) is installed inside the water inlet seat (21). The end of the brewing chamber (22) away from the puncture plate (3) has a water inlet (221). The water inlet seat (21) is provided with a puncture part (211). The puncture part (211) passes through the water inlet (221) and extends into the brewing chamber (22). The outer periphery of the brewing chamber (22) is provided with a first sealing ring (222). The outer periphery of the first sealing ring (222) abuts against the inner wall of the water inlet seat (21).
9. The brewing apparatus for a coffee machine according to claim 8, characterized in that, The brewing chamber (22) has a first annular groove on its outer periphery. A first sealing ring (222) is fitted into the first annular groove. The first sealing ring (222) is V-shaped and abuts against the inner wall of the water inlet seat (21) to maintain a sealed fit.
10. A brewing apparatus for a coffee machine according to claim 8, characterized in that, The inner wall of the brewing chamber (22) is provided with a second annular groove, and a second sealing ring (223) is installed in the second annular groove. When the brewing chamber (22) and the puncture plate (3) are in close contact to form a sealed chamber, the capsule (7) is in the sealed chamber, and the outer wall of the capsule (7) is sealed with the second sealing ring (223). The inner diameter of the second sealing ring (223) gradually decreases as it moves away from the puncture plate (3).