TWM643597U - Filter cup - Google Patents

Abstract

A filter cup includes a cup body unit and a bump unit. The cup unit includes a bottom wall with a discharge port, and a protrusion extending upward from the bottom wall. The protrusion has a suction port which is higher than the discharge port and spaced to communicate with the discharge port. The bump unit includes a bump body and a plurality of supporting parts against the bottom wall. The bump body has a concave hole set on the convex part, and a gap fluidly connected to the suction port is formed between the concave hole and the convex part. The siphon principle design of a suction gap lower than the suction port is formed by the support parts between the cup unit and the protruding body, so as to increase the flow velocity of the fluid, so as to improve the uniformity of extraction.

Description

filter bowl

The present invention relates to a filter for a coffee or tea maker, in particular to a filter cup.

When pouring filter coffee by hand, the extracted coffee flavor will be affected by factors such as coffee powder, the temperature of hot water for showering, and the flow rate of hot water.

Referring to FIG. 1 , a coffee filter cup 1 disclosed in the Republic of China Publication No. TWM622010U patent case includes a cup body 11 with a conical cup inner surface 111 and a cup holder 12 fixed on the bottom side of the cup body 11 . When brewing coffee, put a filter paper 13 in the cup body 11, then put coffee powder and use hot water to shower the coffee powder located in the cup body 11 along the conical inner surface 111 of the cup, so that the hot water flows out naturally downwards by its own gravity. Since the coffee powder will accumulate at the bottom of the cup body 11, the coffee powder located at the center bottom of the cup body 11 is not easy to be washed by hot water, resulting in uneven extraction, and the flavor and taste of the extracted coffee need to be improved.

Therefore, the purpose of the present invention is to provide a filter cup that can improve the uniformity of extraction.

Therefore, the filter cup of the present invention includes a cup body unit and a protrusion unit.

The cup unit includes a bottom wall, a surrounding wall extending upward and outward from the bottom wall along a height direction, and a convex portion extending upward from the bottom wall. The bottom wall has a discharge port, and the convex part has a suction port which is higher than the discharge port and communicates with the discharge port.

The bump unit is arranged on the cup unit, and includes a set of bump body disposed on the bump, and several support portions arranged on the bump body and leaning against the bottom wall. The bump body has a bottom surface facing the bottom wall. The bottom surface is formed with a set of concave holes placed on the convex portion. A gap fluidly connected to the suction inlet is formed between the concave hole and the convex portion. The supporting parts raise the bump body and form a suction gap between the cup unit and the bump body that is lower than the suction inlet. The suction gap, the gap, the recessed hole, the suction port and the discharge port cooperate to define a flow channel for fluid flow.

The effect of the present invention is that: when brewing coffee or tea leaves, the coffee powder or tea leaves can be dispersed between the bump unit and the cup body unit without all accumulating at the bottom of the cup body unit, and the design of the siphon principle that the suction port is higher than the suction gap can increase the flow rate of the brewing liquid, so as to improve the uniformity of extraction.

Referring to FIG. 2 to FIG. 4 , the embodiment of the new filter cup includes a cup body unit 2 and a protrusion unit 3 .

The cup unit 2 includes a bottom wall 21 , a surrounding wall 22 extending upward and outward from the bottom wall 21 along a height direction L, and a protrusion 23 extending upward from the center of the bottom wall 21 .

The bottom wall 21 has a discharge opening 211 . The protruding portion 23 has a suction port 231 higher than the discharge port 211 and spaced to communicate with the discharge port 211 . In this embodiment, the discharge port 211 is aligned with the suction port 231 .

Referring to FIGS. 3 to 5 , the surrounding wall 22 is frustoconical and has an outer surface 221 and an inner surface 222 oppositely disposed. The inner surface 222 has a plurality of first guide grooves 223 arranged at intervals and staggered from each other along the circumferential direction, and a plurality of second guide grooves 224 arranged between the first guide grooves 223 and staggered from each other along the circumferential direction. Wherein, each of the first flow guide grooves 223 opens on the top edge of the surrounding wall 22 , and the length of each of the first flow guide grooves 223 is greater than the length of each of the second flow guide grooves 224 .

Referring to FIG. 2 to FIG. 4 , the bump unit 3 is detachably arranged in the cup unit 2 , and cooperates with the cup unit 2 to define an annular brewing space 20 . The bump unit 3 includes a bump body 31 set on the protruding portion 23 , and a plurality of support portions 32 disposed on the bump body 31 and against the bottom wall 21 .

The protrusion body 31 is a cone, and has a bottom surface 311 facing the bottom wall 21 , and a tapered surface 312 tapering upward from the bottom surface 311 .

The bottom surface 311 is formed with a concave hole 313 set on the convex portion 23 , and a circular gap 310 is formed between the concave hole 313 and the convex portion 23 and is fluidly connected to the suction port 231 .

Referring to FIG. 3 to FIG. 5 , the tapered surface 312 is formed with several inner diversion grooves 314 that are angularly staggered along the circumferential direction, and the width of each inner diversion groove 314 gradually narrows from bottom to top. In this embodiment, the angle of the tapered surface 312 is between 50∘˜70∘, and the angle of the tapered surface 312 in this embodiment is 60∘˜62∘.

4 to 6, the support portions 32 are arranged on the bottom surface 311 of the bump body 31. It should be noted that each support portion 32 is substantially a bump, and the support portions 32 raise the bump body 31 and form a suction gap 30 lower than the suction port 231 between the cup unit 2 and the bump body 31. A flow channel F for fluid flow is defined by the suction gap 30 , the gap 310 , the concave hole 313 , the suction port 231 and the discharge port 211 .

When brewing coffee, first place the embodiment on the top of a container (not shown), and then fold a filter paper (not shown) along the tapered surface 312 of the protrusion unit 3 and place it in the cup unit 2 . Next, pour coffee powder (not shown) into the brewing space 20 , and shower hot water along the inner surface 222 of the surrounding wall 22 and the tapered surface 312 of the bump body 31 . The hot water pours into the coffee powder and flows downward into the suction gap 30 through the first flow guide grooves 223 , the second flow guide grooves 224 and the inner flow guide grooves 314 , and finally flows into the container along the flow channel F through the discharge port 211 to obtain uniformly extracted brewing liquid.

The present invention forms the suction gap 30 between the cup unit 2 and the bump unit 3, and utilizes the structural design that the suction port 231 is higher than the suction gap 30, and uses the pressure difference caused by the water level drop and the siphon principle of the attraction between liquid molecules to push the liquid to pass through the suction port 231 at the highest point and discharge to the discharge port 211 at the low point, thereby increasing the speed of the brewing liquid flowing out.

It is worth mentioning that when showering with hot water, the user can selectively let the hot water flow through the first diversion grooves 223, the second diversion grooves 224, or a part of the inner diversion grooves 314 according to the degree of roasting of the coffee powder, so as to properly adjust the flow rate of the hot water to make the extracted flavor better. In some applications, the invention can also be used to brew tea.

Through the above description, the advantages of the aforementioned embodiments can be summarized as follows:

1. Since the coffee powder or tea leaves can be dispersed between the cup unit 2 and the bump unit 3, it is possible to prevent the coffee powder or tea leaves from accumulating at the bottom of the cup unit 2, and the structural design of the suction port 231 higher than the suction gap 30 is used to increase the outflow speed of the brewing liquid through the pressure difference caused by the water level drop and the siphon principle of the attraction between liquid molecules, so as to improve the uniformity of extraction.

2. The user can selectively make hot water flow through the first diversion grooves 223, the second diversion grooves 224, or a part of the inner diversion grooves 314 according to the degree of roasting of the coffee powder. By properly adjusting the flow rate of the hot water, the coffee powder with different degrees of roasting can present the best taste.

But the above-mentioned ones are only embodiments of the present model, and should not limit the scope of the present model implementation. All simple equivalent changes and modifications made according to the scope of the patent application for the present model and the contents of the patent specification are still within the scope covered by the patent of the present model.

1: coffee filter cup 11: cup body 111: cup inner surface 12: cup holder 13: filter paper 2: Cup unit 20: Brewing Space 21: bottom wall 211: outlet 22: around the wall 221: outer surface 222: inner surface 223: The first diversion tank 224: Second diversion tank 23: convex part 231: Suction port 3: bump unit 30: suction gap 31: bump body 310: Gap 311: Bottom 312: Conical surface 313: concave hole 314: inner diversion groove 32: support part F: Runner L: height direction

Other features and functions of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is a sectional view illustrating a coffee filter disclosed in the Republic of China Patent Publication No. TWM622010U; Fig. 2 is a perspective view illustrating an embodiment of the novel filter cup; Fig. 3 is a three-dimensional exploded view of this embodiment; Fig. 4 is a sectional view taken along the line IV-IV in Fig. 2; Figure 5 is a top view of the embodiment; and FIG. 6 is a schematic cross-sectional view similar to FIG. 4 .

2: Cup unit

20: Brewing Space

21: bottom wall

211: outlet

22: around the wall

221: outer surface

222: inner surface

23: convex part

231: Suction port

3: bump unit

30: suction gap

31: bump body

310: Gap

311: Bottom

312: Conical surface

313: concave hole

32: support part

L: height direction

Claims (10)

A filter cup comprising: A cup unit, comprising a bottom wall, a surrounding wall extending upwards and outwards from the bottom wall along a height direction, and a protrusion extending upwards from the bottom wall, the bottom wall has a discharge port, and the protrusion has a suction port that is higher than the discharge port and spaced to communicate with the discharge port; and A bump unit is arranged on the cup unit, and includes a set of bump body placed on the convex part, and several support parts arranged on the bump body and against the bottom wall. Gap, the suction gap, the gap, the concave hole, the suction inlet and the discharge outlet cooperate to define a flow channel for fluid flow. The filter cup according to claim 1, wherein the surrounding wall of the cup body unit has an outer surface and an inner surface oppositely disposed, and the inner surface has a plurality of first guide grooves arranged at intervals and angularly staggered from each other along the circumferential direction. The filter cup according to claim 2, wherein each of the first diversion grooves opens at the top edge of the surrounding wall. The filter cup according to claim 2, wherein the inner surface further has a plurality of second diversion grooves arranged at intervals between the first diversion grooves and angularly staggered from each other along the circumferential direction. The filter cup according to claim 4, wherein the length of each of the first diversion grooves is greater than the length of each of the second diversion grooves. The filter cup as claimed in claim 1, wherein the protrusion body is a cone. The filter cup according to claim 6, wherein the bump body of the bump unit has a tapered surface extending upward from the bottom surface, and the angle of the tapered surface is between 50∘˜70∘. The filter cup according to claim 1, wherein the protruding body has a tapered surface extending upward from the bottom surface, and the tapered surface is formed with a plurality of internal guide grooves that are angularly staggered from each other along the circumferential direction. The filter cup as claimed in item 1, wherein each of the supporting parts is a bump. The filter cup as claimed in item 1, wherein the protrusion unit is detachably arranged on the cup body unit.

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