Pressure relief spoiler cover, water boiling tank and portable coffee machine

Abstract

The present disclosure provides a pressure relief spoiler cover, a water boiling chamber and a portable coffee machine. The pressure relief spoiler cover includes a sealing cover body, an exhaust one-way valve and a spoiler cover body; the sealing cover body is used to seal the cover and is arranged on the mouth of the water storage cup; a pressure relief port is provided on the sealing cover body; the exhaust one-way valve is blocked at the pressure relief port, and the exhaust port of the exhaust one-way valve is connected to the pressure relief port; the spoiler cover body is arranged on the side of the sealing cover body away from the exhaust one-way valve, and is connected to the sealing cover body; a buffer spoiler cavity is formed between the spoiler cover body and the sealing cover body, and the buffer spoiler cavity is connected to the pressure relief port; a plurality of partial pressure relief ports are provided on the spoiler cover body around the buffer spoiler cavity, and the buffer spoiler cavity is respectively connected to the outside through each partial pressure relief port. Water vapor is dispersedly sprayed out through each partial pressure relief port of the pressure relief spoiler cover, with lower pressure, shorter splashing distance, less likely to splash on the user, and higher safety in use.

Description

Technical Field

[0001] The present disclosure relates to the technical field of coffee equipment, and in particular to a pressure relief spoiler cover, a water boiling chamber and a portable coffee machine. Background Art

[0002] With the development of social economy and the improvement of people's pursuit of quality life, drinking coffee has become a way of life. When brewing coffee, people usually need to heat water at room temperature to about 92°C. However, after the water boils in the water storage cup, the water vapor in the water storage cup will increase. This requires that the water vapor in the water storage cup be discharged into the air to achieve air pressure balance. Therefore, some manufacturers have made further research and development.

[0003] For example, Chinese patent document CN108245021A discloses a hand-pressed coffee machine, comprising: a machine body, a container is arranged on the upper part of which, a brewing chamber is formed on the lower part of which, a through hole connecting the container and the brewing chamber is formed in the middle part, a water-insertion needle is arranged in the through hole, and a one-way valve assembly is arranged between the container and the water-insertion needle or in the water-insertion needle; the bottom of the container has a connecting hole connected to the water-insertion needle and is provided with a heating element for heating liquid; a hand-pressed pump is arranged in the container, and the upper part of the hand-pressed pump extends out of the container; the lower part of the hand-pressed pump has a joint valve, which is arranged in the connecting hole of the container, and has a water inlet connected to the container and a water outlet connected to the water-insertion needle; a coffee box is arranged in the brewing chamber.

[0004] However, the design of the above-mentioned hand-pressed coffee machine has the following problems:

[0005] Although the above-mentioned hand-pressed coffee machine can timely discharge the water vapor generated in the container by setting a one-way valve assembly, the water vapor in the container accumulates a lot and the air pressure is high. When the water vapor is discharged from the one-way valve assembly at one time, the water vapor sprays a long distance and is very likely to splash onto the user. At the same time, when the water is heated to about 92°C, the water vapor generated by its vaporization will carry a lot of heat energy, which is very likely to burn the skin. Utility Model Content

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a heating and pressure relief mechanism and a portable coffee machine that prevents water vapor from splashing and has good safety.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A pressure relief spoiler cover comprises a sealing cover body and an exhaust check valve;

[0009] The sealing cover is used to seal the mouth of the water storage cup; a pressure relief port is provided on the sealing cover; the exhaust check valve is sealed at the pressure relief port, and the exhaust port of the exhaust check valve is connected to the pressure relief port;

[0010] The pressure relief spoiler cover also includes a spoiler cover body;

[0011] The spoiler cover body is arranged on a side of the sealing cover body away from the exhaust one-way valve, and is connected to the sealing cover body; a buffer spoiler cavity is formed between the spoiler cover body and the sealing cover body, and the buffer spoiler cavity is connected to the pressure relief port; a plurality of pressure-dividing air relief ports are opened on the spoiler cover body around the buffer spoiler cavity, and the buffer spoiler cavity is connected to the outside world through each of the pressure-dividing air relief ports.

[0012] In one of the embodiments, the sealing cover body is provided with a plurality of diverter ramps around the buffer spoiler cavity, the buffer spoiler cavity is respectively connected to each of the diverter ramps, and the diverter ramps are connected to the partial pressure vent ports in a one-to-one correspondence.

[0013] In one of the embodiments, each of the diverter ramps extends obliquely from the buffer spoiler cavity toward the corresponding pressure-dividing air release port; each of the pressure-dividing air release ports extends vertically and is connected to the corresponding diverter ramp.

[0014] In one of the embodiments, a mounting groove is formed on the sealing cover body around the pressure relief port, and a flange is convexly formed on the periphery of the exhaust check valve; the exhaust check valve is arranged opposite to the pressure relief port, and the flange is embedded in the mounting groove.

[0015] In one embodiment, a pressure-stabilizing channel is formed between the embedded edge and the inner wall of the mounting groove, the air inlet end of the pressure-stabilizing channel is connected to the pressure relief port, and the air outlet end of the pressure-stabilizing channel is used to connect to the cup cavity of the water storage cup.

[0016] In one of the embodiments, the central portion of the exhaust check valve protrudes toward the pressure relief port to form a guide protrusion; the exhaust port of the exhaust check valve is opened at the top end of the guide protrusion.

[0017] A water boiling tank, comprising a water storage cup, a heating plate and a pressure relief spoiler cover according to any one of the above embodiments;

[0018] The pressure relief spoiler cover sealing cover is arranged at the cup mouth of the water storage cup, the water storage cup is used to store the water to be heated, and the heating plate is arranged at the bottom of the water storage cup; the heating plate is used to be connected to a power source to heat the water to be heated.

[0019] In one embodiment, the heating plate includes a disc-shaped ceramic plate and a heating coil, the heating coil is arranged on the disc-shaped ceramic plate, the heating coil is used to connect to a power supply, and the heating coil is divided into a plurality of circles of arc-shaped heating segments; the plurality of circles of arc-shaped heating segments are concentrically arranged from the center position of the disc-shaped ceramic plate to the periphery of the disc-shaped ceramic plate, and are electrically connected in sequence from the outside to the inside.

[0020] In one of the embodiments, the peripheral edge of the sealing cover body is provided with an annular mounting flange protruding into the water storage cup, and the outer wall of the annular mounting flange is sleeved with a sealing ring; the sealing ring abuts and seals against the cup mouth of the water storage cup.

[0021] A portable coffee machine, comprising a coffee machine body and a water boiling chamber according to any one of the above embodiments;

[0022] The water boiling bin is built in the top of the coffee machine body, and the water outlet of the water storage cup is connected to the powder cup of the coffee machine body.

[0023] Compared with the prior art, the present invention has at least the following advantages:

[0024] 1) By making the sealing cover cover the cup mouth of the water storage cup, since the exhaust check valve is blocked at the pressure relief port, the exhaust port of the exhaust check valve is connected to the pressure relief port, and the pressure relief port is connected to the buffer spoiler cavity, the water vapor in the water storage cup can enter the buffer spoiler cavity through the exhaust port and the pressure relief port of the exhaust check valve in turn, and the pressure and temperature of the water vapor will be reduced by the buffering effect of the buffer spoiler cavity. At the same time, because multiple partial pressure relief ports are arranged around the buffer spoiler cavity, the buffer spoiler cavity is connected to the outside world through each partial pressure relief port, and the water vapor in the buffer spoiler cavity is dispersed and sprayed out through each partial pressure relief port, and the pressure of the water vapor is lower after being dispersed.

[0025] 2) Compared with the hand-pressed coffee machine in the prior art, the pressure relief spoiler cover reduces the pressure and temperature of the water vapor through the buffer spoiler cavity, so that the water vapor is less likely to scald the user after it hits. At the same time, the water vapor is dispersed and sprayed out through each pressure relief port, with lower pressure and shorter spraying distance, and is less likely to splash onto the user, making it safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 An exploded view of a pressure relief spoiler cover according to an embodiment of the present disclosure;

[0028] Figure 2 for Figure 1 A cross-sectional structural diagram of the pressure relief spoiler cover shown;

[0029] Figure 3 for Figure 2An enlarged partial view of the pressure relief spoiler cover shown at point A;

[0030] Figure 4 An exploded view of a water boiling tank according to another embodiment of the present disclosure;

[0031] Figure 5 for Figure 4 A top view of the heating plate of the water boiling tank is shown.

[0032] 1. The numerals in the figure are as follows: 10, water boiling chamber; 100, pressure relief spoiler cover; 110, sealing cover body; 1110, pressure relief port; 1120, buffer spoiler chamber; 1130, diversion ramp; 1140, mounting groove; 1141, pressure stabilizing channel; 1150, annular mounting flange; 1160, sealing ring; 120, exhaust check valve; 1210, exhaust port; 1220, embedded edge; 1230, guide protrusion; 130, spoiler cover body; 1310, pressure relief port; 200, water storage cup; 210, cup mouth; 220, water outlet; 300, heating plate; 310, disc-shaped ceramic plate; 320, heating coil; 3210, arc heating section; 3211, circular arc heating section; 3212, first side arc heating section; 3213, second side arc heating section. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0037] like Figure 1 and Figure 2 As shown, a pressure relief spoiler cover 100 of an embodiment includes a sealing cover body 110, an exhaust check valve 120 and a spoiler cover body 130; the sealing cover body 110 is used to seal the cup mouth 210 of the water storage cup 200; a pressure relief port 1110 is opened on the sealing cover body 110; the exhaust check valve 120 is blocked at the pressure relief port 1110, and the exhaust port 1210 of the exhaust check valve 120 is connected to the pressure relief port 1110; the spoiler cover body 130 is arranged at The sealing cover body 110 is away from one side of the exhaust check valve 120 and is connected to the sealing cover body 110; a buffer spoiler cavity 1120 is formed between the spoiler cover body 130 and the sealing cover body 110, and the buffer spoiler cavity 1120 is connected to the pressure relief port 1110; a plurality of pressure-dividing air relief ports 1310 are opened around the buffer spoiler cavity 1120 on the spoiler cover body 130, and the buffer spoiler cavity 1120 is connected to the outside through each pressure-dividing air relief port 1310.

[0038] It can be understood that by making the sealing cover 110 cover the cup mouth 210 of the water storage cup 200, since the exhaust check valve 120 is blocked at the pressure relief port 1110, the exhaust port 1210 of the exhaust check valve 120 is connected to the pressure relief port 1110, and the pressure relief port 1110 is connected to the buffer spoiler cavity 1120, so that the water vapor in the water storage cup 200 can enter the buffer spoiler cavity 1120 through the exhaust port 1210 and the pressure relief port 1110 of the exhaust check valve 120 in sequence, and the pressure and temperature of the water vapor will be reduced by the buffering effect of the buffer spoiler cavity 1120. At the same time, because a plurality of partial pressure relief ports 1310 are arranged around the buffer spoiler cavity 1120, the buffer spoiler cavity 1120 is respectively connected to the outside world through each partial pressure relief port 1310, and the water vapor in the buffer spoiler cavity 1120 is dispersed and sprayed out through each partial pressure relief port 1310, and the pressure of the water vapor is lower after being dispersed.

[0039] It can be understood that, compared with the hand-pressed coffee machine of the prior art, the pressure relief spoiler cover 100 reduces the pressure and temperature of the water vapor through the buffer spoiler chamber 1120, so that the water vapor is less likely to scald the user after it is released. At the same time, the water vapor is dispersedly sprayed out through the pressure relief ports 1310, with lower pressure and shorter spraying distance, and is less likely to splash onto the user, which is safer to use.

[0040] Combination Figure 1 As shown, in one embodiment, a groove is provided on the spoiler cover 130, and the groove serves as a part of the buffer spoiler cavity 1120. It can be understood that by providing a groove on the spoiler cover 130, the water vapor ejected from the exhaust port 1210 of the exhaust check valve 120 will impact into the groove, and the kinetic energy of the water vapor will be lost during the impact, thereby being able to more effectively buffer the water vapor.

[0041] Combination Figure 2 As shown, in this embodiment, the sealing cover body 110 is provided with a plurality of diverter ramps 1130 around the buffer spoiler cavity 1120, and the buffer spoiler cavity 1120 is respectively connected to each diverter ramp 1130, and the diverter ramp 1130 is connected to the pressure-dividing air release port 1310 in one-to-one correspondence. It can be understood that because the buffer spoiler cavity 1120 is respectively connected to each diverter ramp 1130, and the diverter ramp 1130 is connected to the pressure-dividing air release port 1310 in one-to-one correspondence, the water vapor in the buffer spoiler cavity 1120 needs to be diverted through the diverter ramp 1130 first before it can be discharged to the outside through the corresponding pressure-dividing air release port 1310, further extending the path, so that the water vapor discharged from the pressure-dividing air release port 1310 has a lower temperature and pressure, and a shorter splashing distance, reducing safety hazards.

[0042] Combination Figure 3 As shown, specifically, each diversion ramp 1130 extends obliquely from the buffer spoiler cavity 1120 to the corresponding pressure relief port 1310; each pressure relief port 1310 extends vertically and is connected to the corresponding diversion ramp 1130. It can be understood that because each pressure relief port 1310 extends vertically and is connected to the corresponding diversion ramp 1130, and each pressure relief port 1310 extends obliquely from the pressure relief port 1310 to the buffer spoiler cavity 1120, the water vapor in the buffer spoiler cavity 1120 will first flow obliquely along the diversion ramp 1130 and collide with the pressure relief port 1310, and the pressure of the water vapor and the pressure relief port 1310 will be further reduced during the collision process, and at the same time, the water vapor flows vertically under the guidance of the pressure relief port 1310, and the friction kinetic energy of the water vapor due to the pressure relief port 1310 is lower, which ultimately makes the water vapor discharged from the pressure relief port 1310 The splashing distance is shorter.

[0043] Combination Figure 2 and Figure 3 As shown, in one embodiment, a mounting groove 1140 is provided on the sealing cover body 110 around the pressure relief port 1110, and a rim 1220 is convexly provided on the periphery of the exhaust check valve 120; the exhaust check valve 120 is arranged opposite to the pressure relief port 1110, and the rim 1220 is embedded in the mounting groove 1140. It can be understood that because the rim 1220 is convexly provided on the periphery of the exhaust check valve 120, and the mounting groove 1140 is provided on the sealing cover body 110 around the pressure relief port 1110, when the exhaust check valve 120 needs to be installed, the rim 1220 can be embedded in the mounting groove 1140, so that the exhaust check valve firmly blocks the pressure relief port 1110, thereby increasing the sealing effect of the above-mentioned pressure relief spoiler cover 100.

[0044] Combination Figure 3As shown, in this embodiment, the central part of the exhaust check valve 120 protrudes toward the pressure relief port 1110 and forms a guide protrusion 1230; the exhaust port 1210 of the exhaust check valve 120 is opened at the top of the guide protrusion 1230. It can be understood that since the central part of the exhaust check valve 120 protrudes toward the pressure relief port 1110, the guide protrusion 1230 is conical, and the water vapor in the water storage cup 200 will converge at the top of the guide protrusion 1230 along the inner contour of the guide protrusion 1230 and form a high-pressure airflow. In addition, because the exhaust check valve 120 is opened at the top of the guide protrusion 1230, the exhaust port 1210 of the exhaust check valve 120 is connected to the pressure relief port 1110. When the high-pressure airflow reaches a predetermined pressure, it can be splashed to the pressure relief port 1110 through the exhaust check valve 120. The pressure of the high-pressure airflow is higher and the splashing speed is faster, thereby improving the pressure relief effect of the pressure relief spoiler cover 100. At the same time, the water vapor in the buffer spoiler cavity 1120 will be dispersed along the outer contour of the guide protrusion 1230. The pressure of the water vapor after dispersion is small, which can effectively prevent the water vapor in the buffer spoiler cavity 1120 from flowing back into the water storage cup 200 from the exhaust port 1210 of the exhaust check valve 120.

[0045] Combination Figure 1 As shown, specifically, the exhaust port 1210 of the exhaust check valve 120 is a cross cut. It can be understood that by setting the exhaust port 1210 of the exhaust check valve 120 as a cross cut, the cross cut intersects with the circular hole, and the water vapor needs a higher pressure to break through the cross cut and enter the water storage cup 200, thereby further preventing the water vapor from flowing back from the exhaust port 1210 of the exhaust check valve 120 to the water storage cup 200.

[0046] Combination Figure 3As shown, further, a pressure-stabilizing channel 1141 is formed between the embedded edge 1220 and the inner wall of the mounting groove 1140 , the air inlet end of the pressure-stabilizing channel 1141 is connected to the pressure relief port 1110 , and the air outlet end of the pressure-stabilizing channel 1141 is used to connect to the cup cavity of the water storage cup 200 . It can be understood that when the water in the water storage cup 200 is discharged from the water outlet 220 of the water storage cup 200, the air pressure in the water storage cup 200 will decrease, because the pressure relief port 1110 is connected to the buffer turbulent flow chamber 1120, and the buffer turbulent flow chamber 1120 is connected to the outside world through each pressure-dividing air relief port 1310, and the air inlet end of the pressure-stabilizing flow channel 1141 is connected to the pressure relief port 1110, and the air outlet end of the pressure-stabilizing flow channel 1141 is used to be connected to the cup cavity of the water storage cup 200, so that the outside air can enter the cup cavity of the water storage cup 200 through the pressure-dividing air relief port 1310, the buffer turbulent flow chamber 1120, the pressure relief port 1110 and the pressure-stabilizing flow channel 1141 in sequence, which can effectively balance the air pressure in the cup cavity of the water storage cup 200. When the pressure relief spoiler cover 100 is not tightly closed or is tilted, the suction force generated by the external air entering the cup cavity of the water storage cup 200 can be used to correct and firmly cover the cup mouth 210 of the water storage cup 200 .

[0047] like Figure 4 As shown, the present disclosure also provides a water boiling chamber 10, including a water storage cup 200, a heating plate 300 and a pressure relief spoiler cover 100 of any of the above embodiments; the pressure relief spoiler cover 100 sealing cover is arranged on the cup mouth 210 of the water storage cup 200, the water storage cup 200 is used to store water to be heated, and the heating plate 300 is arranged at the bottom of the water storage cup 200; the heating plate 300 is used to be connected to a power source to heat the water to be heated. It can be understood that by applying the pressure relief spoiler cover 100 disclosed in the present invention to the water boiling chamber 10, the pressure relief spoiler cover 100 sealing cover is arranged on the cup mouth 210 of the water storage cup 200, so that the water vapor in the water storage cup 200 can enter the buffer spoiler chamber 1120 through the exhaust port 1210 and the pressure relief port 1110 of the exhaust check valve 120 in sequence, and the water vapor is buffered by the buffer spoiler chamber 1120. The pressure and temperature will be reduced, and the water vapor is dispersed and sprayed through each partial pressure relief port 1310, the pressure is smaller, the splashing distance is shorter, and it is less likely to splash on the user, and the use safety is higher. At the same time, the water in the water storage cup 200 can be heated by the heating plate 300, which is more convenient to use.

[0048] Combination Figure 4As shown, in this embodiment, the heating plate 300 includes a disc-shaped ceramic plate 310 and a heating coil 320. The heating coil 320 is arranged on the disc-shaped ceramic plate 310. The heating coil 320 is used to connect to a power source. The heating coil 320 is divided into a plurality of arc-shaped heating segments 3210. The plurality of arc-shaped heating segments 3210 are concentrically arranged from the center position of the disc-shaped ceramic plate 310 to the periphery of the disc-shaped ceramic plate 310, and are electrically connected in sequence from the outside to the inside. It can be understood that, because the plurality of arc-shaped heating segments 3210 are arranged concentrically from the center of the disc-shaped ceramic plate 310 to the periphery of the disc-shaped ceramic plate 310, the arc-shaped heating segments 3210 are evenly distributed on the disc-shaped ceramic plate 310, and because the plurality of arc-shaped heating segments 3210 are electrically connected from the outside to the inside, each arc-shaped heating segment 3210 can be electrically heated synchronously, thereby making the heat generation of each part of the disc-shaped ceramic plate 310 uniform. When the water storage cup 200 is heated by the above-mentioned heating plate 300, the water in the water storage cup 200 can be evenly heated, the heat conduction efficiency is higher, and the heating time of the water in the water storage cup 200 can be effectively shortened. Among them, the disc-shaped ceramic plate 310 can be an alumina ceramic plate, which is of course not limited here, and those skilled in the art can also make other choices according to needs.

[0049] Combination Figure 5 As shown, specifically, the plurality of arc-shaped heating segments 3210 are divided into a circle of arc heating segments 3211, a plurality of first side arc heating segments 3212 and a plurality of second side arc heating segments 3213. The arc heating segment 3211 is arranged at the center of the disc-shaped ceramic plate 310; the plurality of first side arc heating segments 3212 are concentrically arranged on a first side of the arc heating segment 3211; between two adjacent first side arc heating segments 3212, the second end of the first side arc heating segment 3212 in the front row is electrically connected to the first end of the first side arc heating segment 3212 in the rear row; the first end of the first side arc heating segment 3212 in the front row is electrically connected to the arc heating The first end of the hot segment 3211 and the second end of the first side arc heating segment 3212 located in the last row are used to be electrically connected to the positive pole of the power supply; a plurality of second side arc heating segments 3213 are concentrically arranged on the second side of the circular arc heating segment 3211; between two adjacent second side arc heating segments 3213, the second end of the second side arc heating segment 3213 located in the front row is electrically connected to the first end of the second side arc heating segment 3213 located in the rear row, the first end of the second side arc heating segment 3213 located in the front row is electrically connected to the second end of the circular arc heating segment 3211, and the second end of the first side arc heating segment 3212 located in the last row is used to be electrically connected to the negative pole of the power supply.

[0050] It can be understood that because the second end of the first side arc heating segment 3212 located in the front row is electrically connected to the first end of the first side arc heating segment 3212 located in the back row, the first end of the first side arc heating segment 3212 located in the front row is electrically connected to the first end of the circular arc heating segment 3211, and the second end of the first side arc heating segment 3212 located in the back row is used to be electrically connected to the positive electrode of the power supply, the entire heating coil 320 can be conducted with the positive electrode of the power supply. At the same time, because the second end of the second side arc heating segment 3213 located in the front row is electrically connected to the first end of the second side arc heating segment 3213 located in the back row, the first end of the second side arc heating segment 3213 located in the front row is electrically connected to the second end of the circular arc heating segment 3211, and the second end of the first side arc heating segment 3212 located in the back row is used to be electrically connected to the negative electrode of the power supply, the entire heating coil 320 can be conducted with the negative electrode of the power supply, and finally the entire heating coil 320 forms a current path and can generate heat efficiently, which has a higher heating efficiency for the water storage cup 200.

[0051] See also Figure 1 As shown, in one embodiment, the periphery of the sealing cover 110 is provided with an annular mounting flange 1150 protruding into the water storage cup 200, and the outer wall of the annular mounting flange 1150 is provided with a sealing ring 1160; the sealing ring 1160 abuts and seals against the cup opening 210 of the water storage cup 200. It can be understood that because the sealing ring 1160 is sleeved on the outer wall of the mounting flange, when the sealing cover 110 is sealed and installed on the cup opening 210 of the water storage cup 200, the sealing ring 1160 will abut and seal against the cup opening 210 of the water storage cup 200, which can further prevent the hot water in the water storage cup 200 from accidentally leaking out of the water storage cup 200, and it is safer to use.

[0052] Combination Figure 1 and Figure 4As shown, the present disclosure further provides a portable coffee machine, including a coffee machine body and a water boiling chamber 10 of any of the above embodiments; the water boiling chamber 10 is built into the top of the coffee machine body, and the water outlet 220 of the water storage cup 200 is connected to the powder cup of the coffee machine body. It can be understood that by applying the water boiling chamber 10 of the present disclosure to the portable coffee machine, the pressure relief spoiler cover 100 sealing cover is arranged at the cup mouth 210 of the water storage cup 200, so that the water vapor in the water storage cup 200 can enter the buffer spoiler chamber 1120 through the exhaust port 1210 and the pressure relief port 1110 of the exhaust check valve 120 in sequence, and the pressure and temperature of the water vapor will be reduced by the buffering effect of the buffer spoiler chamber 1120, and the water vapor is dispersed and sprayed out through each partial pressure relief port 1310, the pressure is smaller, the splashing distance is shorter, it is less likely to splash on the user, and the use safety is higher. At the same time, because the water outlet 220 of the water storage cup 200 is connected to the powder cup of the coffee machine body, the water in the water storage cup 200 enters the powder cup of the coffee machine body through the water outlet 220 of the water storage cup 200 to brew coffee, which is more convenient to use.

[0053] In one embodiment, for better understanding, the use process of the portable coffee machine is described as follows:

[0054] When in use, the user first opens the pressure relief spoiler cover 100 at the cup mouth 210 of the water storage cup 200, injects water into the water storage cup 200 through the cup mouth 210 of the water storage cup 200, then opens the pressure relief spoiler cover 100 at the cup mouth 210 of the water storage cup 200, and then heats the water in the water storage cup 200 through the heating plate 300. The heated water enters the powder cup of the coffee machine body through the water outlet 220 of the water storage cup 200 to brew coffee powder.

[0055] Compared with the prior art, the present invention has at least the following advantages:

[0056] 1) By making the sealing cover 110 cover the cup mouth 210 of the water storage cup 200, since the exhaust check valve 120 is blocked at the pressure relief port 1110, the exhaust port 1210 of the exhaust check valve 120 is connected to the pressure relief port 1110, and the pressure relief port 1110 is connected to the buffer spoiler cavity 1120, so that the water vapor in the water storage cup 200 can enter the buffer spoiler cavity 1120 through the exhaust port 1210 and the pressure relief port 1110 of the exhaust check valve 120 in sequence, and the pressure and temperature of the water vapor will be reduced by the buffer spoiler cavity 1120. At the same time, because a plurality of partial pressure relief ports 1310 are arranged around the buffer spoiler cavity 1120, the buffer spoiler cavity 1120 is respectively connected to the outside through each partial pressure relief port 1310, and the water vapor in the buffer spoiler cavity 1120 is dispersed and sprayed out through each partial pressure relief port 1310, and the pressure of the water vapor is lower after being dispersed.

[0057] 2) Compared with the hand-pressed coffee machine in the prior art, the pressure relief spoiler cover 100 reduces the pressure and temperature of the water vapor through the buffer spoiler chamber 1120, so that the water vapor is less likely to scald the user after it hits. At the same time, the water vapor is dispersed and sprayed out through the pressure relief ports 1310, with lower pressure and shorter spraying distance, and is less likely to splash onto the user, which is safer to use.

[0058] The above embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be subject to the attached claims.

Claims

1. A pressure relief spoiler cover, comprising a sealing cover body and an exhaust check valve; The sealing cover is used to seal the mouth of the water storage cup; a pressure relief port is provided on the sealing cover; the exhaust check valve is sealed at the pressure relief port, and the exhaust port of the exhaust check valve is connected to the pressure relief port; It is characterized in that The pressure relief spoiler cover also includes a spoiler cover body; The spoiler cover body is arranged on a side of the sealing cover body away from the exhaust one-way valve, and is connected to the sealing cover body; a buffer spoiler cavity is formed between the spoiler cover body and the sealing cover body, and the buffer spoiler cavity is connected to the pressure relief port; a plurality of pressure-dividing air relief ports are opened on the spoiler cover body around the buffer spoiler cavity, and the buffer spoiler cavity is connected to the outside world through each of the pressure-dividing air relief ports.

2. The pressure relief spoiler cover according to claim 1, characterized in that: The sealing cover body is provided with a plurality of flow diversion slopes around the buffering and spoiling cavity, the buffering and spoiling cavity is respectively connected to each of the flow diversion slopes, and the flow diversion slopes are connected to the pressure-dividing air vents in a one-to-one correspondence.

3. The pressure relief spoiler cover according to claim 2, characterized in that: Each of the flow-dividing ramps extends obliquely from the buffer spoiler cavity toward the corresponding pressure-dividing air release port; each of the pressure-dividing air release ports extends vertically and is connected to the corresponding flow-dividing ramp.

4. The pressure relief spoiler cover according to claim 1, characterized in that: The sealing cover body is provided with a mounting groove around the pressure relief port, and the periphery of the exhaust check valve is provided with an embedded edge; the exhaust check valve is arranged opposite to the pressure relief port, and the embedded edge is embedded in the mounting groove.

5. The pressure relief spoiler cover according to claim 4, characterized in that: A pressure-stabilizing flow channel is formed between the embedded edge and the inner wall of the mounting groove, the air inlet end of the pressure-stabilizing flow channel is connected to the pressure relief port, and the air outlet end of the pressure-stabilizing flow channel is used to be connected to the cup cavity of the water storage cup.

6. The pressure relief spoiler cover according to claim 1, characterized in that: The central part of the exhaust check valve protrudes toward the pressure relief port to form a flow guiding protrusion; the exhaust port of the exhaust check valve is arranged at the top end of the flow guiding protrusion.

7. A water boiling tank, characterized in that: It comprises a water storage cup, a heating plate and a pressure relief spoiler cover as claimed in any one of claims 1 to 6; The pressure relief spoiler cover sealing cover is arranged at the cup mouth of the water storage cup, the water storage cup is used to store the water to be heated, and the heating plate is arranged at the bottom of the water storage cup; the heating plate is used to be connected to a power source to heat the water to be heated.

8. The water boiling tank according to claim 7, characterized in that: The heating plate includes a disc-shaped ceramic plate and a heating coil, wherein the heating coil is arranged on the disc-shaped ceramic plate and is used to be connected to a power source. The heating coil is divided into a plurality of circles of arc-shaped heating segments; the plurality of circles of arc-shaped heating segments are arranged concentrically from the center position of the disc-shaped ceramic plate to the periphery of the disc-shaped ceramic plate, and are electrically connected in sequence from the outside to the inside.

9. The water boiling tank according to claim 8, characterized in that: The peripheral edge of the sealing cover body is provided with an annular mounting flange protruding into the water storage cup, and the outer wall of the annular mounting flange is sleeved with a sealing ring; the sealing ring abuts and seals against the cup mouth of the water storage cup.

10. A portable coffee machine, characterized in that: It comprises a coffee machine body and a water boiling chamber as claimed in any one of claims 7 to 9; The water boiling bin is built in the top of the coffee machine body, and the water outlet of the water storage cup is connected to the powder cup of the coffee machine body.

Images