Exhaust cover structure and coffee machine

Abstract

The utility model provides an exhaust cover structure and a coffee machine. The exhaust cover structure comprises a top cover, a connecting ring and a mounting seat, the mounting seat comprises a mounting main body and a mounting convex part, an annular flange is arranged on the top surface of the mounting main body, a vent hole is formed between the flange and the mounting convex part, a groove is formed in one side of the mounting convex part, and an inserting block is arranged in the groove; a clamping block is arranged on the inner side of the connecting ring, a ventilation cavity is formed in the clamping block, the connecting ring is arranged outside the mounting convex part in a sleeving mode, the inserting block is inserted into the lower portion of the ventilation cavity, a ventilation gap is formed between the inserting block and the inner wall of the ventilation cavity, the flange abuts against the bottom face of the connecting ring, and a steam channel is formed between the connecting ring and the mounting base. The steam channel is communicated with the ventilation cavity through the ventilation gap; the top cover covers the connecting ring, and an air outlet hole is formed in the top cover; steam enters the steam channel from the vent hole, then enters the ventilation cavity through the ventilation gap and is finally discharged from the air outlet hole, manual exhaust is not needed, internal pressure balance of the coffee machine can be guaranteed, and the internal pressure is prevented from being too high.

Description

Technical Field

[0001] The utility model relates to the field of electrical appliances, and particularly relates to an exhaust cover structure and a coffee machine. Background Art

[0002] A type of existing coffee machine has a small volume and a light weight, making it convenient to carry around in a backpack or handbag. It is called a portable coffee machine. This kind of coffee machine enables users to enjoy delicious coffee at any time and anywhere, and is suitable for use in various occasions such as at home, in the office, and during outdoor travel. The portable coffee machine generally has a cover with an exhaust function at the top to ensure the internal pressure balance of the cup body and avoid potential safety hazards such as the coffee machine bursting and scalding users due to excessive internal pressure that cannot be released. However, currently, the exhaust generally requires manually opening the exhaust valve, which is troublesome to use. Content of the Utility Model

[0003] In view of the deficiencies of the prior art, the utility model provides an exhaust cover structure and a coffee machine, which do not require manual exhaust and are more convenient to use.

[0004] The technical solution of the utility model is realized as follows:

[0005] An exhaust cover structure includes a top cover, a connecting ring, and a mounting seat;

[0006] The mounting seat includes a mounting body and a mounting convex portion protruding from the top surface of the body. The top surface edge of the mounting body protrudes upward to form an annular flange. A vent hole is provided on the mounting body between the flange and the mounting convex portion. A groove is formed in the concave side of the mounting convex portion away from the vent hole. A plug block is provided on the top surface of the mounting body and located in the groove.

[0007] The inner side of the connecting ring is provided with a clamping block. The clamping block has a ventilation cavity that penetrates up and down. The connecting ring is sleeved outside the mounting convex portion. The clamping block is snapped into the groove and the plug block is inserted into the lower part of the ventilation cavity. There is a ventilation gap between the plug block and the inner wall of the ventilation cavity. The flange abuts against the bottom surface of the connecting ring. A steam channel is formed between the flange, the mounting convex portion, and the bottom surface of the connecting ring. The steam channel is communicated with the ventilation cavity through the ventilation gap;

[0008] The top cover is covered on the connecting ring, and an air outlet hole is provided on the top cover corresponding to the position of the ventilation cavity.

[0009] Preferably, an inner ring extends inward from the middle of the inner wall of the ventilation cavity. A sphere is provided between the inner ring and the bottom end of the ventilation cavity. The diameter of the sphere is larger than the inner diameter of the inner ring.

[0010] Preferably, the plug block is cross-shaped, and the lower part of the ventilation cavity is cylindrical. The plug block is inserted into the lower part of the ventilation cavity so that there is a ventilation gap between the plug block and the inner wall of the ventilation cavity.

[0011] Preferably, insertion posts are provided in the middle of the top surface of the installation body and inside the installation convex part, and an insertion ring is provided on the bottom surface of the top cover. The insertion posts are inserted into the insertion ring.

[0012] Alternatively, an insertion ring is provided in the middle of the top surface of the installation body and inside the installation convex part, and insertion posts are provided on the bottom surface of the top cover. The insertion posts are inserted into the insertion ring.

[0013] Preferably, a first notch is provided at a position of the flange close to the vent hole, and the first notch communicates with the steam channel.

[0014] Preferably, a pressing piece is further included. A concave part is formed in the middle of the top surface of the top cover, and the pressing piece is installed in the concave part, and the pressing piece partially covers the air outlet hole.

[0015] Preferably, a buffer channel is recessed downward around the edge of the concave part, the buffer channel communicates with the air outlet hole, a second notch is provided on the side wall of the concave part, and an outlet for steam to discharge is formed between the second notch and the side wall of the pressing piece.

[0016] Preferably, a bottom cover covering the bottom surface of the installation body is further included. An air inlet hole is provided at a position of the bottom cover corresponding to the vent hole, and the size of the air inlet hole is smaller than the size of the vent hole.

[0017] Preferably, a retaining ring protrudes downward from the bottom edge of the connecting ring, and the bottom cover is snapped into the inner wall of the retaining ring.

[0018] A coffee cup includes a cup body having an opening and the exhaust cover structure according to any one of the above, and the exhaust cover structure covers the opening of the cup body.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] (1) The exhaust cover structure includes a top cover, a connecting ring and a mounting seat. A steam channel is formed between the connecting ring and the mounting seat. Steam enters the steam channel from the vent hole of the mounting seat, then enters the ventilation cavity of the connecting ring through the ventilation gap, and finally discharges from the air outlet hole of the top cover, without manual exhaust, which can ensure the internal pressure balance of the coffee machine and avoid excessive internal pressure and inability to release.

[0021] (2) Since the insertion block is located in the groove on the side of the installation convex part away from the vent hole, and the ventilation gap between the insertion block and the inner wall of the ventilation cavity is also on the side away from the vent hole, the travel of the steam from the vent hole to the ventilation gap along the steam channel is relatively long, which can accelerate the cooling of the steam to prevent the discharged steam from being overheated. Moreover, since the entire travel of the steam from the vent hole to the air outlet hole is relatively long, to a certain extent, it slows down the discharge speed of the steam and reduces the impact of exhaust on the internal heat preservation of the coffee machine.

[0022] (3) The installation connection between the connecting ring and the mounting seat can be realized by clamping the clamping block into the groove and inserting the inserting block into the lower part of the ventilation cavity. Moreover, the steam channel is communicated with the ventilation cavity through the ventilation gap, which can further cool the steam and prevent high-temperature steam from spraying out of the air outlet hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a cross-sectional view of the exhaust cover structure in the present utility model;

[0024] Figure 2 is an exploded structural schematic diagram of the exhaust cover structure in the present utility model;

[0025] Figure 3 is Figure 2 an enlarged structural schematic diagram of part A in

[0026] Figure 4 is a three-dimensional structural schematic diagram of the mounting seat in the present utility model;

[0027] Figure 5 is a three-dimensional structural schematic diagram of the connecting ring in the present utility model;

[0028] Figure 6 is a cross-sectional view of the connecting ring and the sphere in the present utility model;

[0029] Figure 7 is a cross-sectional view of the installation state of the mounting seat and the connecting ring in the present utility model;

[0030] Figure 8 is a three-dimensional structural schematic diagram of the top cover in the present utility model;

[0031] Figure 9 is a cross-sectional view of the top cover in the present utility model;

[0032] Figure 10 is a top view of the exhaust cover structure in the present utility model;

[0033] Figure 11 is Figure 10 an enlarged structural schematic diagram of part B in

[0034] Figure 12 is a cross-sectional view of the coffee machine in the present utility model.

[0035] REFERENCE SIGNS:

[0036] 1. Top cover; 11. Air outlet hole; 12. Inserting ring; 13. Depressed part; 131. Buffer channel; 132. Second notch; 14. Brim;

[0037] 2. Connecting ring; 21. Clamping block; 211. Ventilation cavity; 211a. Ventilation gap; 212. Inner ring; 22. Retaining ring;

[0038] 3. Mounting base; 31. Mounting body; 311 - Flange; 3111. First notch; 312. Vent hole; 313. Insertion block; 32. Mounting protrusion; 321. Groove; 33. Insertion post;

[0039] 4. Sphere;

[0040] 5. Pressing piece;

[0041] 6. Bottom cover; 61. Air inlet hole;

[0042] 7. Steam channel;

[0043] 8. Cup body. Detailed implementation mode

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0046] Embodiment 1

[0047] See Figures 1 to 9, this embodiment provides an exhaust cover structure, including a top cover 1, a connecting ring 2 and a mounting base 3; the mounting base 3 includes a mounting body 31 and a mounting convex portion 32 protruding from the top surface of the body. The top surface edge of the mounting body 31 is convexly provided with an annular flange 311. A ventilation hole 312 is provided on the mounting body 31 between the flange 311 and the mounting convex portion 32. A groove 321 is formed concave on the side of the mounting convex portion 32 away from the ventilation hole 312. A plug block 313 is provided on the top surface of the mounting body 31 and within the groove 321;

[0048] The inner side of the connecting ring 2 is provided with a clamping block 21. The clamping block 21 has a vertically penetrating ventilation cavity 211. The connecting ring 2 is sleeved outside the mounting convex portion 32. The clamping block 21 is snapped into the groove 321 and the plug block 313 is inserted into the lower part of the ventilation cavity 211. There is a ventilation gap 211a between the plug block 313 and the inner wall of the ventilation cavity 211. The flange 311 abuts against the bottom surface of the connecting ring 2. A steam channel 7 is formed between the bottom surfaces of the flange 311, the mounting convex portion 32 and the connecting ring 2. The steam channel 7 is annular. The steam channel 7 communicates with the ventilation cavity 211 through the ventilation gap 211a;

[0049] The top cover 1 is covered on the connecting ring 2. An air outlet hole 11 is provided on the top cover 1 corresponding to the position of the ventilation cavity 211.

[0050] Steam enters the steam channel 7 from the ventilation hole 312 of the mounting base 3, then enters the ventilation cavity 211 of the connecting ring 2 through the ventilation gap 211a, and finally is discharged from the air outlet hole 11 of the top cover 1. There is no need for manual exhaust, which can ensure the internal pressure balance of the coffee machine and avoid excessive internal pressure that cannot be released;

[0051] Since the plug block 313 is located in the groove 321 on the side of the mounting convex portion 32 away from the ventilation hole 312, the ventilation gap 211a between the plug block 313 and the inner wall of the ventilation cavity 211 is also on the side away from the ventilation hole 312. The travel of the steam from the ventilation hole 312 to the ventilation gap 211a along the steam channel 7 is relatively long, which can accelerate the cooling of the steam to prevent the discharged steam from being overheated. Moreover, since the entire travel of the steam from the ventilation hole 312 to the air outlet hole 11 is relatively long, to a certain extent, it slows down the discharge speed of the steam and reduces the impact of exhaust on the internal heat preservation of the coffee machine;

[0052] By snapping the clamping block 21 into the groove 321 and inserting the plug block 313 into the lower part of the ventilation cavity 211, the installation connection between the connecting ring 2 and the mounting base 3 can be realized. Moreover, the steam channel 7 communicates with the ventilation cavity 211 through the ventilation gap 211a, which can further cool the steam and prevent high-temperature steam from spraying out from the air outlet hole 11.

[0053] Preferably, refer to Figure 1 , Figures 5 to 7, in the middle of the inner wall of the ventilation cavity 211, an inner ring 212 extends inward. A sphere 4 is provided between the inner ring 212 and the bottom end of the ventilation cavity 211. The diameter of the sphere 4 is larger than the inner diameter of the inner ring 212. The setting of the sphere 4 can play a role in steam buffering. When steam enters the ventilation cavity 211, due to the existence of the sphere 4, the steam is blocked by the sphere 4, slowing down the discharge speed of the steam and preventing the steam from being discharged in a jet shape, thus avoiding scalding the user; the diameter of the sphere 4 being larger than the inner diameter of the inner ring 212 can prevent the sphere 4 from falling out of the ventilation cavity 211.

[0054] Among them, referring to Figure 1 , Figures 4 to 7 , the insertion block 313 is cross-shaped, the lower part of the ventilation cavity 211 is cylindrical, and the insertion block 313 is inserted into the lower part of the ventilation cavity 211 so that there is a ventilation gap 211a between the insertion block 313 and the inner wall of the ventilation cavity 211. When the steam passes through the ventilation gap 211a, it is further cooled.

[0055] Preferably, referring to Figure 1 , Figure 4 , and Figure 8 , in order to prevent the top cover 1 from loosening, a plug post 33 is provided in the middle of the top surface of the mounting body 31 and inside the mounting convex part 32. A plug ring 12 is provided on the bottom surface of the top cover 1. The plug post 33 is inserted into the plug ring 12 to realize the mounting connection between the top cover 1 and the mounting seat 3;

[0056] In other embodiments, the positions of the plug post and the plug ring are opposite. A plug ring is provided in the middle of the top surface of the mounting body 31 and inside the mounting convex part 32, and a plug post is provided on the bottom surface of the top cover 1. The plug post is inserted into the plug ring, which can also realize the mounting connection between the top cover 1 and the mounting seat 3.

[0057] Preferably, referring to Figure 3 , a first notch 3111 is provided at the position of the flange 311 close to the ventilation hole 312. The first notch 3111 is communicated with the steam channel 7. Since the size of the ventilation hole 312 is small, after a large amount of steam enters the ventilation hole 312, it can enter the first notch 3111 for buffering, avoiding the retention of steam at the position of the ventilation hole 312, and then can enter the steam channel 7, which helps the steam to smoothly enter the steam channel 7 from the ventilation hole 312; in addition, during the processing and forming, the annular flange 311 is prone to stress deformation, and the occurrence of deformation can be avoided by setting the first notch 3111.

[0058] Preferably, referring to Figure 1 , Figures 9 to 11, the exhaust cover structure further includes a pressing piece 5. A concave portion 12 is formed in the middle of the top surface of the top cover 1. The pressing piece 5 is installed in the concave portion 12, and the pressing piece 5 partially covers the air outlet 11. Since the pressing piece 5 partially covers the air outlet 11, it can further prevent steam from spraying out, playing a role in protecting the safety of users.

[0059] Furthermore, a buffer channel 121 is recessed downward around the edge of the concave portion 12. The buffer channel 121 communicates with the air outlet 11. The steam entering the buffer channel 121 is further cooled, and it can further prevent steam from spraying out. The side wall of the concave portion 12 has a second notch 122. An outlet for steam to discharge is formed between the second notch 122 and the side wall of the pressing piece 5. The steam enters the steam channel 7 through the ventilation hole 312 of the mounting base 3, then enters the ventilation cavity 211 of the connecting ring 2 through the ventilation gap 211a, then enters the buffer channel 121 of the top cover 1 through the air outlet 11 of the top cover 1, and finally discharges from the outlet formed between the second notch 122 and the side wall of the pressing piece 5. During this process, part of the steam will be cooled into water in the buffer channel 121. Opening the pressing piece 5 regularly can clean the water in the buffer channel 121, which can keep the exhaust cover structure clean; the setting of the second notch 122 enables the pressing piece 5 to partially cover the air outlet 11, and the steam can finally discharge from the outlet formed between the second notch 122 and the side wall of the pressing piece 5.

[0060] Preferably, referring to Figure 1 and Figure 2 , the exhaust cover structure further includes a bottom cover 6 covering the bottom surface of the mounting body 31. The bottom cover 6 is provided with an air inlet 61 corresponding to the position of the ventilation hole 312. The size of the air inlet 61 is smaller than the size of the ventilation hole 312. The bottom cover 6 is provided with an air inlet 61 with a size smaller than that of the ventilation hole 312. The steam enters the steam channel 7 from the small-sized air inlet 61 through the large-sized ventilation hole 312, enabling the steam to enter the exhaust cover structure more smoothly, which is beneficial to ensuring the internal pressure balance of the coffee machine.

[0061] Preferably, referring to Figure 1 , Figure 2 , Figure 5 and Figure 6 , a retaining ring 22 protrudes downward from the bottom edge of the connecting ring 2. The bottom cover 6 is snapped into the inner wall of the retaining ring 22, which can realize the installation connection between the bottom cover 6 and the connecting ring 2. During assembly, first, the connecting ring 2 is sleeved outside the mounting protrusion 32 of the mounting base 3, and the clamping block 21 is snapped into the groove 321 and the plug-in block 313 is inserted into the lower part of the ventilation cavity 211. Then, the top cover 1 is installed on the mounting base 3 by inserting the plug-in column into the plug-in ring and the top cover 1 covers the connecting ring 2. After that, the bottom cover 6 is snapped into the inner wall of the retaining ring 22 of the connecting ring 2. Finally, the pressing piece 5 is installed in the concave portion 12 of the top cover 1 to complete the assembly of the exhaust cover structure.

[0062] Embodiment 2

[0063] See Figure 12 Figure 12 , this embodiment provides a coffee cup, including a cup body 8 with an opening and the exhaust cover structure in the first embodiment. The exhaust cover structure is covered on the opening of the cup body 8. By covering the exhaust cover structure on the opening of the cup body 8, the steam in the cup body 8 enters the steam channel 7 from the ventilation hole 312 of the mounting base 3, then enters the ventilation cavity 211 of the connecting ring 2 through the ventilation gap 211a, and finally is discharged from the air outlet hole 11 of the top cover 1, without manual exhaust, which can ensure the internal pressure balance of the coffee machine and avoid excessive internal pressure that cannot be released.

[0064] Preferably, in order to facilitate the installation and positioning of the exhaust cover structure, a brim 14 is provided at the edge of the top cover 1. The lower part of the connecting ring 2 is inserted into the opening of the cup body 8, and the brim 14 abuts against the top surface of the cup body 8. After assembly, the exhaust cover structure is inserted into the opening of the cup body 8 so that the lower part of the connecting ring 2 is inserted into the opening of the cup body 8 until the brim 14 of the top cover 1 abuts against the top surface of the cup body 8.

[0065] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An exhaust cover structure, characterized in that it includes a top cover, a connecting ring and a mounting seat; The mounting seat includes a mounting body and a mounting convex portion protruding from the top surface of the body. A ring-shaped flange protrudes upward from the edge of the top surface of the mounting body. An air vent hole is provided on the mounting body between the flange and the mounting convex portion. A groove is formed in the concave on one side of the mounting convex portion away from the air vent hole. A plug block is provided on the top surface of the mounting body and within the groove; A clamping block is provided on the inner side of the connecting ring. The clamping block has a vertically penetrating air cavity. The connecting ring is sleeved outside the mounting convex portion. The clamping block is snapped into the groove and the plug block is inserted into the lower part of the air cavity. There is an air vent gap between the plug block and the inner wall of the air cavity. The flange abuts against the bottom surface of the connecting ring. A steam channel is formed between the flange, the mounting convex portion and the bottom surface of the connecting ring. The steam channel is communicated with the air cavity through the air vent gap; The top cover is covered on the connecting ring. An air outlet hole is provided on the top cover corresponding to the position of the air cavity.

2. The exhaust cover structure according to claim 1, characterized in that The middle part of the inner wall of the air cavity extends inwards to form an inner ring. A sphere is provided between the inner ring and the bottom end of the air cavity. The diameter of the sphere is larger than the inner diameter of the inner ring.

3. The exhaust cover structure according to claim 1, characterized in that The plug block is cross-shaped. The lower part of the air cavity is cylindrical. The plug block is inserted into the lower part of the air cavity so that there is an air vent gap between the plug block and the inner wall of the air cavity.

4. The exhaust cover structure according to claim 1, characterized in that A plug post is provided in the middle of the top surface of the mounting body and inside the mounting convex portion. A plug ring is provided on the bottom surface of the top cover. The plug post is inserted into the plug ring; Or, a plug ring is provided in the middle of the top surface of the mounting body and inside the mounting convex portion. A plug post is provided on the bottom surface of the top cover. The plug post is inserted into the plug ring.

5. The exhaust cover structure according to claim 1, characterized in that A first notch is provided at a position of the flange close to the air vent hole. The first notch is communicated with the steam channel.

6. The exhaust cover structure according to claim 1, characterized in that It further includes a pressing piece. A concave portion is formed in the middle of the top surface of the top cover. The pressing piece is installed in the concave portion. The pressing piece partially covers the air outlet hole.

7. The exhaust cover structure according to claim 6, characterized in that A buffer channel is recessed downward around the edge of the concave portion. The buffer channel is communicated with the air outlet hole. A second notch is provided on the side wall of the concave portion. An outlet for steam to be discharged is formed between the second notch and the side wall of the pressing piece.

8. The exhaust cover structure according to claim 1, characterized in that It further includes a bottom cover covered on the bottom surface of the mounting body. An air inlet hole is provided on the bottom cover corresponding to the position of the air vent hole. The size of the air inlet hole is smaller than the size of the air vent hole.

9. The exhaust cover structure according to claim 8, characterized in that a retaining ring is convexly provided downward at the bottom edge of the connecting ring, and the bottom cover is snap-fitted to the inner wall of the retaining ring.

10. A coffee machine, characterized in that it includes a cup body having an opening and the exhaust cover structure according to any one of claims 1 to 9, and the exhaust cover structure covers the opening of the cup body.

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