Leak through type coffee machine
Technical field
The present invention relates to a kind of coffee machine, is specifically a kind of leak through type coffee machine.
Background technology
Coffee machine is a kind of equipment of boiling coffee, is mainly used in family or commercial use.The coffee machine of prior art is generally leak through type coffee machine, be called a kind of patent of electric coffee machine for CN 101843446A, name as disclosing a kind of Granted publication number on the State Intellectual Property Office website, its structure comprises water tank, downcomer, funnel and kettle, one end of wherein said downcomer is connected with water boiling device by check valve, the top of water boiling device is connected with an end of upper hose, the other end of upper hose is positioned at the top of funnel, kettle is positioned at the below of funnel, and heat-generating pipe is arranged in water boiling device.during use, first ready ground coffee is placed in funnel, heat-generating pipe energising heating, water in water tank is in check valve flow to water boiling device, heat-generating pipe heats the water in water boiling device, produce steam after water heating in water boiling device, the pressure of steam makes the closed check valve that connects downcomer, the pressure of steam rises in water boiling device always, until hot water is pushed to upper hose, hot water flows in the funnel of placing ground coffee, in the pressure of the water vapour in water boiling device is decreased to lower than water tank during the pressure of water, the one-way valve opens water filling, so circulation, thereby make hot water fully mix the formation liquid coffee with ground coffee, then flow in the kettle of funnel below.The coffee machine volume of this structure is larger, and production cost is higher, particularly in transportation, also will consider the packaging space of kettle, has brought many inconvenience therefore for transportation and the packing of product.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the defective of above prior art, provides that a kind of volume is little, production cost is low, and the leak through type coffee machine of packing and convenient transportation.
technical solution of the present invention is, a kind of leak through type coffee machine with following structure is provided: it comprises water tank, downcomer, the pipe of heating up water, water boiling device, upper hose, the funnel of accommodating ground coffee, the top of described water tank is provided with water filling port, described downcomer, heat up water the pipe and the upper hose three be connected, and the upper end of downcomer is connected with water tank, the upper end of upper hose is positioned at above funnel, one check valve all is installed in described downcomer and upper hose, also be provided with the funnel stand of accommodating funnel in described water tank, one elastomeric bladder is set in described water tank, the lower end of described funnel is positioned at the opening at elastomeric bladder top, and the elastomeric bladder top sides is along fitting with the inner wall sealing of water tank, the sidewall of described water tank top is provided with a delivery port, and delivery port communicates with the inside of elastomeric bladder.
after adopting above structure, leak through type coffee machine of the present invention compared with prior art, have the following advantages: in the water tank of this leak through type coffee machine employing below funnel, elastomeric bladder is set, when water filling in water tank, elastomeric bladder does not take the volume in water tank under the natural shrinking state, when the water boiling device energising is heated the water in the pipe of heating up water, the interior water vapor pressure of the pipe of heating up water increases, thereby make the closed check valve of downcomer, make the one-way valve opens of upper hose, the interior water of pipe of heating up water upwards flow in the funnel that is equipped with ground coffee along upper hose under the pressure of steam, hot water is mixed with ground coffee form liquid coffee, then flow in the elastomeric bladder of funnel below, when the water vapour pressure in the pipe of heating up water less than water tank in during the pressure of water, the check valve of downcomer is again opened the water that makes in water tank and is flow to heating in the pipe of heating up water, so circulation, flow in elastomeric bladder after making the interior ground coffee of funnel and hot water fully mixes, the volume of the water in water tank reduces like this, in elastomeric bladder, the volume of liquid coffee increases, the elastomeric bladder of contraction state is outwards launched, that is to say, the volume that the volume that in water tank, water reduces increases no better than elastomeric bladder, namely under water tank total measurement (volume) permanence condition, the volume of water and liquid coffee exchanges by the flexible of capsule, has so just reasonably utilized the space in water tank, compare with traditional leak through type coffee machine, if be all the coffee that boils same amount, it is less that the volume of this leak through type coffee machine can be done, in other words, if the volume of coffee machine is identical, the quantity of coffee that coffee machine of the present invention boils can be more.Moreover the cost of the elastomeric bladder of this leak through type coffee machine is low, and the elastomeric bladder of accommodating liquid coffee is arranged in water tank, so the packing of product and transportation fairly simple convenience all.
As a kind of improvement, the inwall of described funnel stand and water tank is flexibly connected.Therefore this funnel stand can take out in water tank together with funnel, makes the cleaning of funnel also more convenient.
As preferably, described tank inner wall is provided with one with the horizontal support plate of through hole, and the inwall of described through hole is up big and down small arcwall face, and the outer wall of described funnel stand is connected with the inwall of through hole, and namely the outer wall of funnel stand is stuck in through hole.
As a kind of improvement, the outer wall of described funnel stand is provided with a baffle plate that matches with the shape of through hole and size, described baffle plate is provided with the flow-guiding mouth that is connected with delivery port, described elastomeric bladder top sides is along connecting an elastic seal ring, the lateral wall tight fit of described elastic seal ring and baffle plate, and the sealing of the arc inner wall of elastic seal ring lateral wall and through hole is fitted.The elastic seal ring on this elastomeric bladder top sides edge and the lateral wall tight fit of baffle plate, and the sealing of the arc inner wall of elastic seal ring and through hole is fitted, and the arc inner wall of through hole is up big and down small arcwall face, clean or change thereby can easily elastomeric bladder be taken out with hand, use to people and brought convenience; Horizontal support plate and baffle plate tightly fit in together by elastic seal ring in addition, when the liquid coffee that falls in elastomeric bladder, can prevent from remaining water in water tank is poured out from delivery port.
As a kind of improvement, a side bottom of the close delivery port of described baffle plate is provided with the elastomeric bladder support to downward-extension, and described elastomeric bladder support is positioned at elastomeric bladder.When pouring out liquid coffee, after this elastomeric bladder support can prevent the elastomeric bladder contraction, distortion can stop pouring out smoothly of coffee, and liquid towards coffee also plays certain guide functions simultaneously, and the liquid coffee in elastomeric bladder is poured out smoothly.
As a kind of improvement, described funnel stand is fixedly connected with the inwall of water tank.
As preferably, described being fixedly connected with refers to, be provided with a circular shrouding between the lateral wall of described funnel stand and tank inner wall, outer wall and the tank inner wall of described shrouding are tightly connected, the inwall of described shrouding and the lateral wall of funnel stand are tightly connected, and shrouding is provided with the water injection hole that is connected with water filling port and water tank inside and the flow-guiding mouth that is communicated with delivery port, and the top sides of described elastomeric bladder is along being fixedly connected with the diapire of shrouding, and the inside of elastomeric bladder communicates with flow-guiding mouth on shrouding.This shrouding is combined as a whole funnel stand and tank inner wall, when the liquid coffee that falls in elastomeric bladder, can prevent from remaining water in water tank is poured out from delivery port.In addition, this structure is simpler, and production cost is lower.
Description of drawings
Fig. 1 is the blast structural representation of leak through type coffee machine of the present invention.
Fig. 2 is the structural representation of leak through type coffee machine of the present invention.
Fig. 3 is the A-A cross section structure schematic diagram of leak through type coffee machine of the present invention in Fig. 2.
Fig. 4 is the structural representation after leak through type coffee machine water filling of the present invention.
Fig. 5 is that the elastomeric bladder of leak through type coffee machine of the present invention is injected the structural representation after coffee expands.
Fig. 6 is the structural representation that the funnel stand of leak through type coffee machine of the present invention is fixedly connected with tank inner wall.
Fig. 7 is the B-B cross section structure schematic diagram of leak through type coffee machine of the present invention in Fig. 6.
As shown in the figure:
1, water tank, 2, funnel, 3, funnel stand, 4, downcomer, 5, the pipe of heating up water, 6, upper hose, 7, check valve, 8, water boiling device, 9, delivery port, 10, elastomeric bladder, 11, elastic seal ring, 12, horizontal support plate, 13, through hole, 14, water filling port, 15, baffle plate, 16, flow-guiding mouth, 17, annular indent, 18, elastomeric bladder support, 19, water injection hole, 20, shrouding.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but the invention is not restricted to following examples.
Embodiment 1:
as Fig. 1, Fig. 2 and shown in Figure 3, leak through type coffee machine of the present invention, it comprises water tank 1, downcomer 4, heat up water and manage 5, water boiling device 8, upper hose 6, the funnel 2 of accommodating ground coffee, the top of described water tank 1 is provided with water filling port 14, described downcomer 4, heat up water the pipe 5 and upper hose 6 threes be connected, and the upper end of downcomer 4 is connected with water tank 1, the upper end of upper hose 6 is positioned at funnel 2 tops, described downcomer 4 and the interior check valve 7 that all is equipped with of upper hose 6, also be provided with the funnel stand 3 of accommodating funnel 2 in described water tank 1, the interior elastomeric bladder 10 that arranges of described water tank 1, the lower end of described funnel 2 is positioned at the opening at elastomeric bladder 10 tops, and elastomeric bladder 10 top sides are along fitting with the inner wall sealing of water tank 1, the sidewall of described water tank 1 top is provided with a delivery port 9, and delivery port 9 communicates with the inside of elastomeric bladder 10.
Described funnel stand 3 is flexibly connected with the inwall of water tank 1.
Described funnel stand 3 is flexibly connected with the inwall of water tank 1, refer to that described water tank 1 inwall is provided with one with the horizontal support plate 12 of through hole 13, the inwall of described through hole 13 is up big and down small arcwall face, the outer wall of described funnel stand 3 is connected with the inwall of through hole 13, and namely funnel stand 3 is stuck on the inwall of through hole 13.
The outer wall of described funnel stand 3 is provided with a baffle plate 15 that matches with the shape of through hole 13 and size, described baffle plate 15 is provided with the flow-guiding mouth 16 that is connected with delivery port 9, described elastomeric bladder 10 top sides are along fitting with the inner wall sealing of water tank 1, refer to that described elastomeric bladder 10 top sides are along connecting an elastic seal ring 11, the lateral wall tight fit of described elastic seal ring 11 and baffle plate 15, and the sealing of the arc inner wall of elastic seal ring 11 lateral walls and through hole 13 is fitted.
The sidewall of described baffle plate 15 is provided with annular indent 17 along the circumferential direction, the interior diameter of described elastic seal ring 11 is less than the diameter of annular indent 17, due to the elasticity of elastic seal ring, elastic seal ring 11 can very closely be enclosed within the annular indent 17 of baffle plate.
One side bottom of described baffle plate 15 close delivery ports 9 is provided with the elastomeric bladder support 18 to downward-extension, and described elastomeric bladder support 18 is positioned at elastomeric bladder 10.
as shown in Figure 4 and Figure 5, water is when water filling port 14 water filling of water tank, along with the water volume in water tank 1 increases, hydraulic pressure contracting elastomeric bladder 10 in water tank 1, make the volume-diminished of elastomeric bladder 10, thereby make the interior water that can fill larger volume of water tank 1, when the water in 8 pairs of water boiling devices of startup are heated up water pipe 5 heats, the interior water vapor pressure of pipe 5 of heating up water increases, thereby the check valve 7 of downcomer 4 is closed, the check valve 7 of upper hose 6 is opened, the pipe 5 interior water of heating up water upwards flow in the funnel 2 that is equipped with ground coffee along upper hose 6 under the pressure of steam, hot water is mixed with ground coffee form liquid coffee, then flow in the elastomeric bladder 10 of funnel 2 belows, when the water vapour pressure of pipe in 5 of heating up water during less than the pressure of water tank 1 interior water, the check valve 7 of downcomer 4 is again opened the water that makes in water tank 1 and is flow to the pipe 5 interior heating of heating up water, so circulation, flow in elastomeric bladder 10 after making the interior ground coffee of funnel 2 and hot water fully mixes.So just reasonably utilized the space in water tank 1, compare with traditional leak through type coffee machine, if be all the coffee that boils same amount, it is less that the volume of this leak through type coffee machine can be done, in other words, if identical with the volume of traditional leak through type coffee machine, the quantity of coffee that coffee machine of the present invention boils can be more.
Embodiment 2:
as shown in Figure 6 and Figure 7, leak through type coffee machine of the present invention, it comprises water tank 1, downcomer 4, heat up water and manage 5, water boiling device 8, upper hose 6, the funnel 2 of accommodating ground coffee, the top of described water tank 1 is provided with water filling port 14, described downcomer 4, heat up water the pipe 5 and upper hose 6 threes be connected, and the upper end of downcomer 4 is connected with water tank 1, the upper end of upper hose 6 is positioned at funnel 2 tops, described downcomer 4 and the interior check valve 7 that all is equipped with of upper hose 6, also be provided with the funnel stand 3 of accommodating funnel 2 in described water tank 1, the interior elastomeric bladder 10 that arranges of described water tank 1, the lower end of described funnel 2 is positioned at the opening at elastomeric bladder 10 tops, and elastomeric bladder 10 top sides are along fitting with the inner wall sealing of water tank 1, the sidewall of described water tank 1 top is provided with a delivery port 9, and delivery port 9 communicates with the inside of elastomeric bladder 10.
Described funnel stand 3 is fixedly connected with the inwall of water tank 1.
Described being fixedly connected with, refer to be provided with a circular shrouding 20 between the lateral wall of described funnel stand 3 and water tank 1 inwall, the outer wall of described shrouding 20 is connected with water tank 1 inner wall sealing, the lateral wall of the inwall of described shrouding 20 and funnel stand 3 is tightly connected, and shrouding 20 is provided with the water injection hole 19 that is connected with water filling port 14 and water tank 1 inside and the flow-guiding mouth 16 that is communicated with delivery port 9; Described elastomeric bladder 10 top sides are along fitting with the inner wall sealing of water tank 1, and the top sides that refers to described elastomeric bladder 10 is along being fixedly connected with the diapire of shrouding 20, and the inside of elastomeric bladder 10 communicates with flow-guiding mouth 16 on shrouding 20.
One side bottom of described shrouding 20 close delivery ports 9 is provided with the elastomeric bladder support 18 to downward-extension, and described elastomeric bladder support 18 is positioned at elastomeric bladder 10.
The water boiling device 8 that the present invention mentions, its structure generally comprise and being arranged on the heat up water heater strip of pipe on 5 and the power supply base that is flexibly connected with the conductive junction point of heater strip.The water boiling device 8 of this structure is the conversion of prior art, so its concrete structure is not described in detail in the present invention.
Above embodiment has only done better explanation to the present invention, can not be interpreted as the restriction to claim of the present invention.The structure of this leak through type coffee machine also can have other variations, be communicated with the water filling port of water tank as the opening with elastomeric bladder, and the bottom of elastomeric bladder is communicated with the entrance of downcomer, elastomeric bladder is just as the container that is filled with water like this, and original water tank can be used as the container of containing liquid coffee, so also can play the requirement of dwindling small product size.So long as the various variations in claim of the present invention all belong to protection scope of the present invention.