TWI829574B - Filter element and beverage filter containing the same - Google Patents

Abstract

The invention is a filter element and a beverage filter including the same. It includes: an inner filter cup, an outer filter cup, a water separator and a filter element. The filter element includes a filter disc and a cylinder, and the filter disc runs through There are multiple filter holes, and granular filter materials are provided in the filter holes, which are placed in the inner filter cup to achieve the filtering effect; the invention has a filtering or soaking function and is suitable for coffee or tea. The original aroma can be retained after brewing, and no consumables are needed It can save costs and is environmentally friendly. When cleaning, the user only needs to hold the cylinder and pull out the filter element to remove most of the residue. It is easy to clean and convenient.

Description

Filter element and beverage filter containing the same

The present invention is a filter element composed of a ceramic or glass filter made of granular filter material and a beverage filter device containing the same. In particular, it relates to a filter element that is easy to clean and does not require the use of consumables, and can be used for brewing coffee or tea at the same time. Class filter.

Due to the improvement of economic level, modern people are pursuing more taste of life. They usually drink coffee or tea to enjoy life after work and relieve the busy daily stress. The flavor and taste it exudes are particularly important, especially when they are tasted with their own hands. Make a cup of tea or coffee to express it better. Take hand-brewed coffee as an example. Today's hand-brewed coffee brewers mainly include three types: filtering with filter paper, filtering with metal mesh, or filtering with sintered ceramic particles. The brewing process of filtering with filter paper is as follows. The user will The filter cup is placed on the opening edge of the cup. The filter cup is funnel-shaped as a whole and has filter holes running through the bottom of the cup. A filter paper is placed on the filter cup. The shape of the filter paper corresponds to the shape of the inner wall of the filter cup. The user pours the coffee powder into it. Put it into the filter cup, then pour hot water into the hand brewing pot, the coffee flows out from the filter hole at the bottom through the filter paper, and the soaked coffee grounds remain on the filter paper to achieve the filtering effect; while the metal mesh is used to filter and sintered ceramic particles The brewing process is like filter paper, except that the filter paper and filter cup are replaced with metal mesh or sintered ceramic particles, which can also achieve the effect of filtering coffee powder.

However, in the above-mentioned process of filtering coffee powder with filter paper, because the filter paper is disposable, it is not environmentally friendly to throw it away after use, which will increase the cost of use for consumers, and the filter paper itself has an odor that easily affects the brewing process. The flavor of the drink usually needs to go through a rinsing process before brewing to reduce this interference factor, and the filter paper easily absorbs coffee oil esters, which will reduce the complete flavor of the coffee, and metal In the process of filtering coffee powder with a filter and sintered ceramic particles, because the pores of the metal filter and sintered ceramic particles are small, it is easy to cause powder residue and coffee grease to remain in the filter during repeated use, which affects the overall taste. and have a negative impact on the flavor. After drinking, you need to further clean the filter by inverting it, tapping it, and using tools to remove the coffee grounds. The overall process is time-consuming and labor-intensive. The sintered ceramic particle filter cup is also difficult to clean due to its overall thickness. Inside the filter layer; and the above devices usually do not have the function of making tea, and other utensils must be used. Therefore, the overall structure of the brewing device of the prior art has the above-mentioned problems and shortcomings, and it really needs to be improved.

In view of the shortcomings of the existing technology, the present invention provides a beverage filter that can be used for brewing tea or coffee, is easy to clean and does not require the use of consumables.

In order to achieve the above-mentioned object of the invention, the technical means used in the present invention is to design a beverage filter, which includes: an outer filter cup, which has an outer cup body and a base, and an outer container groove is formed around the outer cup body. The outer cup has an outer opening and an outer drainage hole. The outer opening is located above the outer container and communicates with the outer container. The outer drainage hole penetrates the bottom of the outer cup and communicates with the outer container. ; An inner filter cup, the inner filter cup includes an inner cup body, the inner cup body is surrounded by an inner groove, the inner groove has an inner opening and an inner drainage hole, the inner opening is located above the content groove and the inner drain hole; The content grooves are connected, the inner drainage hole penetrates the bottom of the content groove, the inner filter cup is placed in the outer filter cup, and a heat preservation space is formed between the inner cup body and the outer cup body; a filter element , which includes a filter disc and a cylinder. The cylinder is protruding from the filter disc. The filter disc is made of ceramic or glass material and has a plurality of filter holes running through it. Each filter hole is filled with a plurality of granular filter materials. The component is arranged in the content tank; a water separator is placed on the inner filter cup, the filter plate is close to the bottom of the content tank, and a surrounding formation is formed between the filter plate and the bottom of the content tank. A water collection space is provided, and the water collection space is connected with the inner drainage hole.

In order to achieve the above-mentioned object of the invention, a further technical means used in the present invention is to design a filter element, which includes a filter plate and a cylinder. The cylinder is protruding from the filter plate. The filter plate is made of ceramic or glass. The component has a plurality of filter holes, and each filter hole is filled with a plurality of granular filter materials.

Furthermore, in the beverage filter, the inner cup body further includes a positioning portion protruding from the bottom of the inner cup body on the other side of the content groove, and the groove of the outer cup body There is a positioning hole penetrating through the bottom, the shape of the positioning hole corresponds to the shape of the positioning part, and the positioning part penetrates the positioning hole.

Furthermore, in the beverage filter, the vertical contact surfaces of the inner filter cup and the outer filter cup can rotate relative to each other, and the rotation controls whether the inner drainage hole and the outer drainage hole are connected or not. When the inner filter cup is not connected with the outer drainage hole, it can achieve the function of containing liquid.

Furthermore, in the beverage filter, a conduit is protruding from the bottom surface of the outer filter cup, and the conduit is connected with the outer drainage hole.

Furthermore, in the beverage filter, the water distributor includes a water distributor seat and a water distributor tray, the water distributor seat is surrounded by an internal space, and the bottom surface of the water distributor seat is formed with a fixed groove and a plurality of water distributors. holes, each of the water distribution holes is arranged at intervals around the fixed groove, the water distribution plate is fixed above the water distribution seat and has a plate hole penetrating through it, the plate hole is connected with the internal space, and the water distributor is connected with the water distributor. The fixed groove is sleeved on the cylinder of the filter element. The cylinder is a hollow cylinder with a lower connection hole and a ventilation hole. The lower connection hole and the ventilation hole are located at opposite ends of the cylinder. The ventilation hole The hole is connected with the fixing groove.

Furthermore, in the beverage filter, the cylinder of the filter element is a hollow cylinder with a lower connection hole and a ventilation hole, and the lower connection hole and the ventilation hole are located at opposite ends of the cylinder. , the lower connecting hole is connected with the filter plate.

Furthermore, in the beverage filter described above, the inner filter cup further includes an inner ring convex portion. The inner ring convex portion surrounds and protrudes from the bottom of the inner cup body on the other side of the inner cup body relative to the inner groove. The filter cup is arranged in the outer tank, and the inner ring protrusion is close to the bottom of the outer tank.

Furthermore, in the beverage filter, the positioning part includes a cylinder and a convex block. One end of the cylinder is fixed on the inner cup body. The convex block is protruded on the outer surface of the cylinder. The cylinder is located on The positioning hole and the bump are located on the outside of the outer cup.

Furthermore, in the filter element, the thickness of the filter sheet is 1.5~3.5mm, the inner diameter of each filter hole is 1~5mm, and the diameter of each particulate filter material is 0.1~0.3mm.

The advantage of this invention is that it has filtering and soaking functions at the same time. The filtering method is suitable for coffee and can be used for soaking tea or coffee. The filtering brewing method can achieve vertical water flow, and the extraction is uniform and the taste is better. The immersion brewing method can be used from both inside and outside. The thermal insulation structure between the cups can delay the cooling of the tea soup and increase the extraction rate, while the ceramic or glass material will not be affected by chemical substances and odors, and the filter can allow the brewed coffee to retain most of the oil and esters to increase the taste and aroma, and the water separator The use of the coffee slurry can effectively avoid disturbing the coffee slurry, making it less likely to be stuffed with powder or slowing down the temperature. It does not require the use of consumables. Compared with the existing technology, it saves costs and has environmental benefits. When cleaning the brewing residue, the user only needs to hold the cylinder to remove the filter. By pulling it out, most of the residue can be removed. It is easy to clean and the filter structure is not prone to dust residue, making it highly convenient.

10:Inner filter cup

11: Inner cup body

111:Content slot

112:Inward opening

113:Inner drainage hole

12: Positioning Department

121:Cylinder

122: Bump

13: Inner ring convex part

14:lugs

20:Filter

21:Filter

211: Filter hole

212: Filter ventilation hole

213: Granular filter material

214:Water collection space

22: Cylinder

221:Lower connection hole

222: Breathing hole

30:Outer filter cup

31:Outer cup body

311:Outer tank

312:Outside opening

313: Positioning hole

314: External drainage hole

315:Catheter

316: Outer ring convex part

32:Base

33:handle

34: Insulation space

40:Water separator

41: water-dividing seat

411:Fixed slot

412:Water hole

413:Internal space

42:Drainage tray

421: Pan hole

50: cup

Figure 1 is a three-dimensional appearance view of the present invention.

Figure 2 is a schematic diagram of the combination of the present invention.

Figure 3 is an exploded view of the present invention.

Figure 4 is an exploded view from another angle of the present invention.

Figure 5 is a schematic cross-sectional view of the water separator used in the present invention.

Figure 6 is a schematic cross-sectional view of the water separator cover of the present invention.

The technical means adopted by the present invention to achieve the intended invention purpose will be further described below with reference to the drawings and preferred embodiments of the present invention.

Please refer to FIG. 1 . The filter of the present invention includes an inner filter cup 10 , a filter element 20 , an outer filter cup 30 and a water separator 40 .

Please refer to Figures 2 and 3. The inner filter cup 10 includes an inner cup body 11, a positioning portion 12, an inner ring convex portion 13 and a lug 14. The inner cup body 11 is surrounded by an inner groove 111. The slot 111 has an inner opening 112 and an inner drainage hole 113. The inner opening 112 is located above the content slot 111 and communicates with the content slot 111. The inner drainage hole 113 penetrates the bottom of the content slot 111; the positioning portion 12 is protruding from the inner cup. The bottom of the body 11 is opposite to the other side of the bottom of the content groove 111. In this embodiment, the positioning part 12 includes a cylinder 121 and a bump 122. One end of the cylinder 121 is fixed on the inner cup body 11, and the bump 122 122 is protruding on the outer surface of the other end of the cylinder 121, but is not limited to this. The form of the positioning part 12 can be changed according to the user's needs, or the positioning part 12 may not be provided; the inner ring convex part 13 is protruding around the inner cup The bottom of the body 11 is opposite to the other side of the bottom of the content groove 111, and surrounds the positioning portion 12; the lug 14 is a piece of body, which is protruding on the outer ring side of the inner cup body 11 adjacent to the inner opening 112, but Without being limited to this, the lugs 14 may not be provided.

Please refer to FIGS. 3 to 5 . The filter element 20 includes a filter disc 21 and a cylinder 22 . The filter disc 21 is penetrated by a plurality of filter holes 211 and a filter disc ventilation hole 212 . Each filter hole 211 is provided with a plurality of particles. The filter material 213 and the cylinder 22 are hollow cylinders with a lower connection hole 221 and a ventilation hole 222. The lower connection hole 221 and the ventilation hole 222 are located at the opposite ends of the cylinder 22. The ventilation hole 222 is located on the side of the cylinder 22. The cylinder 22 is anchored to the filter disc 21 with one end adjacent to the lower connection hole 221 . The lower connection hole 221 is connected with the filter disc ventilation hole 212 . The filter element 20 is disposed in the content groove 111 of the inner cup body 11 . The filter disc 21 Close to the bottom of the content tank 111, in this embodiment, the filter 21 is made of ceramic or glass and is sintered at high temperature to form a circular piece, and a water collection space 214 is formed around the bottom of the content tank 111. , the water collection space 214 is connected with the inner drainage hole 113, the thickness of the filter plate 21 is 1.5mm~3.5mm, the inner diameter of the filter hole 211 is 1~5mm, and the particle filter material 213 can be ceramic particles or glass particles, and its outer diameter is 0.1 ~0.3mm.

The outer filter cup 30 includes an outer cup body 31, a base 32 and a handle 33. The outer cup body 31 is surrounded by an outer container groove 311. The outer cup body 31 has an outer opening 312, a positioning hole 313 and an outer drainage hole. 314. The outer opening 312 is located above the outer container 311 and communicates with the outer container 311. The positioning hole 313 and the outer drainage hole 314 penetrate through the bottom of the outer cup 31 and communicate with the outer container 311. The shape of the positioning hole 313 corresponds to The shape of the positioning portion 12 is such that a conduit 315 and an outer ring convex portion 316 are protruding around the other side of the bottom of the outer groove 311. The conduit 315 is connected with the outer drainage hole 314. The positioning hole 313 and the outer drainage hole are 314 is located inside the outer ring protrusion 316, but is not limited to this. The form and arrangement of the conduit 315 and the outer ring protrusion 316 can be changed according to the user's needs; the base 32 surrounds and protrudes from the outer cup body 31. The bottom end is an annular piece as a whole to support the opening of the container below, but it is not limited to this, and the form can be changed according to the user's needs; the handle 33 is protruding from the side of the outer cup body 31. In this embodiment , the positions of the positioning hole 313, the outer drainage hole 314, the lug 14 and the handle 33 are located on the same straight line, and the outer drainage hole 314 is located between the positioning hole 313 and the handle 33, but is not limited to this; the inner filter The cup 10 has the positioning part 12 inserted through the positioning hole 313 of the outer filter cup 30. The cylinder 121 is located in the positioning hole 313. The protrusion 122 is located on the outside of the outer cup body 31. The inner ring protrusion 13 is close to the groove of the outer containing groove 311. At the bottom, a heat preservation space 34 is formed around the inner cup body 11 and the outer cup body 31 .

The water distributor 40 includes a water distribution seat 41 and a water distribution tray 42. The water distribution seat 41 forms an internal space 413 around it. A fixed groove 411 and a plurality of water distribution holes 412 are formed on the bottom surface of the water distribution seat 41. Each water distribution hole 412 The water distributor 40 is arranged at intervals around the fixed groove 411. The water distributor 42 is fixed above the water distributor seat 41 and has a disk hole 421 passing through it. The disk hole 421 is connected with the internal space 413. The water distributor 40 is sleeved on the filter with the fixed groove 411. The cylinder 22 of the component 20 has the vent hole 222 of the cylinder 22 connected with the fixing groove 411. Specifically, the inner diameter of the fixing groove 411 is larger than the outer diameter of the cylinder, so the inner wall surface of the fixing groove 411 is connected to the vent hole 222. A gap is maintained to allow the gas inside the column 22 to flow out to the outside. The form of the water separator 40 is not limited to this.

When using the present invention, please refer to FIG. 5 , taking brewing coffee as an example, and place the outer filter cup 30 on a cup 50 , and the user first pours coffee powder into the content groove 111 of the inner filter cup 10 , so that the coffee powder is stacked on top of the filter 21. When brewing, pour water into the water distribution tray 42, and the water will flow from the holes in each tray. 421 flows through the water distribution seat 41 and then flows into the content groove 111 from each water distribution hole 412. The formed coffee is filtered by the filter plate 21 and then flows into the cup from the inner drainage hole 113 of the inner filter cup 10 and the outer drainage hole 314 of the outer filter cup 30. 50, during the process of brewing coffee, the vertical contact surfaces of the inner filter cup 10 and the outer filter cup 30 can rotate relative to each other by grasping the inner opening 112 or pulling the lug 14 left and right, and the lug 14 and the When the handle 33 is in the same rotation position, the inner drainage hole 113 is connected to the outer drainage hole 314, and coffee liquid can pass through. When the inner drainage hole 113 and the outer drainage hole 314 are not connected, the inner filter cup 10 can be connected to the outer filter cup 30 by its own weight. To achieve a close fit, during the rotation of the inner filter cup 10, when the positioning part 12 rotates to coincide with the positioning hole 313, the inner filter cup 10 can be taken out from the outer filter cup 30. When the positioning part 12 rotates to not coincide with the positioning hole 313, When the positioning holes 313 overlap, the inner filter cup 10 and the outer filter cup 30 can engage with each other. The gap between the inner filter cup 10 and the outer filter cup 30 forms a heat preservation space 34 that can delay the temperature change in the bubbler.

When using the present invention, please refer to FIG. 6 , taking brewing tea as an example, and place the outer filter cup 30 on a cup 50 , and the user first pours tea leaves into the content groove 111 of the inner filter cup 10 , so that the tea leaves are stacked above the filter disc 21. When brewing, pour water into the content tank 111, and invert the water distributor to cover the water distributor tray 42 on the inner opening 112 to keep it warm. The formed tea soup is filtered by the filter disc 21 Then the tea flows into the cup 50 from the inner drainage hole 113 of the inner filter cup 10 and the outer drainage hole 314 of the outer filter cup 30. During the process of making tea, the two vertical contact surfaces of the inner filter cup 10 and the outer filter cup 30 It can be rotated relatively by grasping the inner opening 112 or pulling the lug 14 left and right. When the lug 14 and the handle 33 are in the same rotation position, the inner drainage hole 113 is connected with the outer drainage hole 314, and tea soup can pass through. When the inner drainage hole is 113 is not connected with the outer drainage hole 314, the inner filter cup 10 can achieve close contact with the outer filter cup 30 by its own weight, and during the rotation of the inner filter cup 10, when the positioning part 12 rotates to coincide with the positioning hole 313 , the inner filter cup 10 can be taken out from the outer filter cup 30. When the positioning part 12 is rotated to not coincide with the positioning hole 313, the inner filter cup 10 and the outer filter cup 30 can achieve the effect of mutual engagement, and the inner filter cup 10 The heat preservation space 34 formed in the gap with the outer filter cup 30 can delay the temperature change in the bubbler.

The filter element 20 of the present invention can be configured in the required form into a conical or cup-shaped form and can be used in a general container for filtering purposes (not shown in the drawings) or used alone, or in the form of the filter element 20 with the inner filter cup 10, The outer filter cup 30 and the water separator 40 are used to achieve both filtering and soaking functions. Filtering is suitable for coffee, and soaking is suitable for tea or coffee. The filter-type brewing method can achieve vertical water flow, and the extraction is uniform and the taste is better. The immersion brewing method can use the insulation structure between the inner and outer cups to delay the cooling of the tea soup and increase the extraction rate. Ceramic or glass materials will not have any concerns about the dissolution of chemical substances and the impact of odor, and the filter 21 can retain a large amount of brewed coffee. Part of the oil ester increases the taste and aroma. The use of the water separator 40 can effectively avoid disturbing the coffee slurry and making it less likely to be stuffed with powder. It does not require the use of consumables. Compared with the existing technology, it saves costs and has environmental benefits. When cleaning coffee residues, the user only needs Hold the cylinder 22 and pull out the filter element 20 to remove most of the residue, which is highly convenient.

In the aforementioned process, since the filter disc 21 is made of ceramic or glass material sintered at high temperature, it has material stability, and uses a sheet-shaped structure that penetrates multiple filter holes with granular filter materials inside, so it has the advantage of being easy to clean and reusable.

In the aforementioned process, since the cylinder 22 of the filter element 20 has the ventilation hole 222 connected with the ventilation hole 212 of the filter plate, the filter element 20 can be prevented from floating due to the buoyancy of the gas during the brewing process.

During the aforementioned process, as shown in FIG. 6 , when the water distributor 40 is turned upside down and the water distributor plate 42 is covered with the inner opening 112 of the inner filter cup 10 , the heat preservation effect can be achieved.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention has been disclosed above in terms of preferred embodiments, it is not intended to limit the present invention. Any technical field that has A person with ordinary knowledge, without departing from the scope of the technical solution of this invention, can use the technical content disclosed above to make some changes or modifications as equivalent embodiments of equivalent changes. However, any content that does not deviate from the technical solution of this invention shall be based on this invention The technical essence of creation is very important to the above practice. Any simple modifications, equivalent changes and modifications made to the embodiments still fall within the scope of this creative technical solution.

10:Inner filter cup

11: Inner cup body

111:Content slot

112:Inward opening

14:lugs

20:Filter

30:Outer filter cup

31:Outer cup body

32:Base

33:handle

40:Water separator

41: water-dividing seat

42:Drainage tray

421: Pan hole

Claims (10)

A beverage filter, which includes: an outer filter cup, which has an outer cup body and a base. An outer container groove is formed around the outer cup body. The outer cup body has an outer opening and an outer drainage hole. The outer cup body has an outer opening and an outer drainage hole. The opening is located above the outer tank and communicates with the outer tank, and the external drainage hole penetrates the bottom of the outer cup body and communicates with the outer tank; an inner filter cup, the inner filter cup includes an inner cup body, A content groove is formed around the inner cup body. The content groove has an inner opening and an inner drainage hole. The inner opening is located above the content groove and communicates with the content groove. The inner drainage hole penetrates the bottom of the content groove. , the inner filter cup is placed in the outer filter cup, and a heat preservation space is formed between the inner cup body and the outer cup body; a filter element includes a filter plate and a cylinder, the cylinder protrudes In the filter piece, the filter piece is made of ceramic or glass material and has a plurality of filter holes running through it. Each filter hole is filled with a plurality of granular filter materials. The filter element is arranged in the content tank; a water separator is placed in the content tank. On the inner filter cup, the filter plate is close to the bottom of the content tank. A water collection space is formed between the filter disk and the bottom of the content tank. The water collection space is connected with the inner drainage hole. . The beverage filter according to claim 1, wherein the inner cup body further includes a positioning portion protruding from the bottom of the inner cup body on the other side of the content groove, and the groove of the outer cup body There is a positioning hole penetrating through the bottom, the shape of the positioning hole corresponds to the shape of the positioning part, and the positioning part penetrates the positioning hole. As for the beverage filter described in claim 1, the two contact surfaces in the vertical direction of the inner filter cup and the outer filter cup can rotate relatively, and the rotation controls whether the inner drainage hole and the outer drainage hole are connected or not, and the inner drainage hole When the inner filter cup is not connected with the outer drainage hole, it can achieve the function of containing liquid. The beverage filter as claimed in claim 1, wherein a conduit is protruding from the bottom surface of the outer filter cup, and the conduit is connected with the outer drainage hole. The beverage filter as claimed in claim 1, wherein the water distributor includes a water distributor seat and a water distributor tray, the water distributor seat is surrounded by an internal space, and a fixed groove and a plurality of water distributors are formed on the bottom surface of the water distributor seat. holes, each of the water distribution holes is arranged at intervals around the fixed groove, and the water distribution plate is fixed on the water distribution hole. There is a disk hole above and penetrating the seat, and the disk hole is connected with the internal space. The water distributor is sleeved on the cylinder of the filter element with the fixing groove. The cylinder is a hollow cylinder with a bottom connection. hole and a ventilation hole, the lower connecting hole and the ventilation hole are located at opposite ends of the column, and the ventilation hole is connected with the fixing groove. The beverage filter according to claim 1, wherein the cylinder of the filter element is a hollow cylinder with a lower connection hole and a ventilation hole, and the lower connection hole and the ventilation hole are located at opposite ends of the cylinder. , the lower connecting hole is connected with the filter plate. As for the beverage filter of claim 1, the inner filter cup further includes an inner ring convex portion, the inner ring convex portion surrounds and protrudes from the other side of the bottom of the inner cup relative to the content groove, and the inner ring convex portion The filter cup is arranged in the outer tank, and the inner ring protrusion is close to the bottom of the outer tank. The beverage filter according to claim 2, wherein the positioning part includes a cylinder and a convex block, one end of the cylinder is fixed on the inner cup body, the convex block is protruding on the outer surface of the cylinder, and the cylinder is located on The positioning hole and the bump are located on the outside of the outer cup. A filter element, which includes a filter disc and a cylinder. The cylinder is protruding from the filter disc. The filter disc is made of ceramic or glass material and has a plurality of filter holes running through it. Each filter hole is filled with a plurality of granular filter materials. . The filter element as described in claim 9, wherein the thickness of the filter sheet is 1.5~3.5mm, the inner diameter of each filter hole is 1~5mm, and the diameter of each particulate filter material is 0.1~0.3mm.

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