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CN-118266751-B - Improve heating structure's capsule coffee machine

CN118266751BCN 118266751 BCN118266751 BCN 118266751BCN-118266751-B

Abstract

The invention discloses a capsule coffee machine with an improved heating structure, which comprises a shell, a control device, a water tank, a boiler, an extraction mechanism and at least one water pump, wherein the control device, the water tank, the boiler, the extraction mechanism and the at least one water pump are arranged in the shell, the boiler is connected with the extraction mechanism in series, the water tank comprises a box body, an upper cover and a water injection pressure relief valve, a water filling port is arranged at the lower part of the box body, the water filling port is connected with the boiler, the water injection pressure relief valve comprises a valve body, a sealing valve core, a reset spring and a water injection pressure relief rod, the water injection pressure relief rod is slidably arranged on the valve body, the sealing valve core is sleeved on the water injection pressure relief rod, the upper end part of the water injection pressure relief rod is in propping fit with the upper cover, a slag discharging pipe is arranged at the lower part of the boiler, and the slag discharging pipe is provided with a slag discharging filter component. The water injection pressure release valve has the advantages of simultaneously taking water inlet and outlet and pressure release into consideration, along with simple structure and low cost, hanging installation of the heating pipe, reducing the sealing surface at the lower part of the boiler, reducing the risk of water leakage, removing scale and impurities by disassembling the deslagging filter assembly, and preventing the accumulation of the scale and the impurities.

Inventors

  • PENG HAIBO

Assignees

  • 广东邦泽创科电器股份有限公司

Dates

Publication Date
20260505
Application Date
20240423

Claims (10)

  1. 1. A capsule coffee machine with an improved heating structure comprises a shell (1), a control device, a water tank (2), a boiler (4), an extraction mechanism (9) and at least one water pump (13), wherein the control device, the water tank (2), the water pump (13) are arranged in the shell (1), the control device is electrically connected with the water pump (13), the water tank (2) is connected with the boiler (4), the boiler (4) is connected with the extraction mechanism (9), the water pump (13) is connected between the boiler (4) and the extraction mechanism (9) in series, the capsule coffee machine is characterized in that the water tank (2) comprises a box body (21), an upper cover (22) and a water injection pressure relief valve (3), the lower part of the box body (21) is provided with a water injection port, the water injection port is connected with the boiler (4), the upper cover (22) is hinged to one side of the box body (21) or the shell (1), The water injection pressure release valve (3) comprises a valve body (31), a sealing valve core (32), a reset spring (33) and a water injection pressure release rod (34), wherein the valve body (31) is embedded in a water injection port, a water inlet hole (312) is formed in the upper portion of the valve body (31), a water outlet hole (315) is formed in the lower portion of the valve body (31), the water inlet hole (312) is communicated with the inside of a water tank (2), the water outlet hole (315) is communicated with the inside of a boiler (4), the lower portion of the water injection pressure release rod (34) is vertically and slidably arranged on the valve body (31), the sealing valve core (32) is sleeved on the lower portion of the water injection pressure release rod (34) and is positioned in the valve body (31), the reset spring (33) is arranged below the sealing valve core (32), the water injection pressure release rod (34) is hollow, an air inlet (341) is formed in the lower end portion of the water injection pressure release rod (34), the air inlet (341) is communicated with an inner cavity of the boiler (4), the upper end portion of the water injection pressure release rod (34) extends to the upper portion of the tank (21) and is in abutting fit with the upper cover (22), and at least one air outlet (342) is arranged on one side of the upper portion of the water injection pressure release rod (34). The inside of the boiler (4) is provided with a water level sensing mechanism, a temperature sensing mechanism (6) and a heating tube (7), two ends of the heating tube (7) respectively extend out of the upper end face of the boiler (4) and are electrically connected with a control device, a heating gap is arranged between the heating tube (7) and the inner side wall of the boiler (4), and the water level sensing mechanism and the temperature sensing mechanism (6) are respectively electrically connected with the control device; The lower part of boiler (4) is provided with scum pipe (8), the upper portion and the boiler (4) of scum pipe (8) are connected, the lower part of scum pipe (8) is provided with row's cinder notch (81), the side of scum pipe (8) is provided with outlet (82), outlet (82) are connected with water pump (13), scum pipe (8) are provided with sediment filter element (84), sediment filter element (84) are including sediment valve and filter screen cover, the filter screen cover sets up in the upper end of sediment valve and is located the top of outlet (82), the upper portion of sediment valve inserts row's cinder notch (81), the lower part of sediment valve and the lower extreme fixed connection of scum pipe (8) and sealed scum pipe (8).
  2. 2. The capsule coffee machine with improved heating structure according to claim 1, wherein the slag discharging valve comprises a slag discharging cap (841), a slag discharging valve core (842), a first sealing ring (85) and a connecting screw (843), the slag discharging cap (841) is provided with a first water discharging installation groove (8411) and a second water discharging installation groove (8412) which are annular and are upward in opening, the second water discharging installation groove (8412) is positioned on the inner side of the first water discharging installation groove (8411), The inner wall of the first drainage mounting groove (8411) is provided with a lower connecting buckle or a lower connecting screw thread, the outer side surface of the lower end part of the slag discharging pipe (8) is correspondingly provided with an upper connecting buckle or an upper connecting screw thread, the upper connecting buckle is clamped with the lower connecting buckle or the upper connecting screw thread is connected with the lower connecting screw thread, the first sealing ring (85) is arranged between the slag discharging cap (841) and the slag discharging pipe (8), The slag discharging valve core (842) is arranged in the second water discharging installation groove (8412), the filter screen cover is arranged at the upper end part of the slag discharging valve core (842), the central part of the slag discharging cap (841) is provided with a sealing installation hole (8413) penetrating through the slag discharging cap (841), the central part of the slag discharging valve core (842) is provided with a rod penetrating hole (8421) penetrating through the slag discharging valve core (842), the sealing installation hole (8413) and the rod penetrating hole (8421) are aligned along the vertical direction, and the connecting screw (843) sequentially penetrates through the sealing installation hole (8413) and the rod penetrating hole (8421) from bottom to top to be in threaded connection with the filter screen cover.
  3. 3. The capsule coffee machine with the improved heating structure according to claim 2, wherein the filter screen cover comprises a filter frame (846) with a T-shaped cross section and a stainless steel filter screen (847) arranged on the upper portion of the filter frame (846) through a sleeve beer, a plurality of filter holes (848) are formed in the stainless steel filter screen (847), the lower portion of the filter frame (846) is inserted into the rod penetrating holes (8421), the connecting screw (843) is in threaded connection with the filter frame (846), a second sealing ring (844) is arranged between the filter frame (846) and the slag discharging valve core (842), and a third sealing ring (845) is arranged between the slag discharging valve core (842) and the slag discharging pipe (8).
  4. 4. The capsule coffee machine with the improved heating structure according to claim 3, wherein the slag discharging filter assembly (84) is further provided with an anti-lost connecting piece (849), one end of the anti-lost connecting piece (849) is fixedly arranged at the bottom of the shell (1), and the other end of the anti-lost connecting piece (849) is sleeved on the slag discharging cap (841); The upper end part of the slag discharging pipe (8) is covered with a buffer cover (86), and a plurality of guide ports (861) are arranged on the side surface of the buffer cover (86) at intervals along the circumferential direction.
  5. 5. The capsule coffee machine with improved heating structure according to any one of claims 2 to 4, wherein the heating tube (7) comprises two straight line sections (71) and a spiral section (72), the two straight line sections (71) are vertically arranged at intervals, two ends of the spiral section (72) are respectively connected with the lower ends of the two straight line sections (71), the upper ends of the two straight line sections (71) are respectively electrically connected with the control device, The central part of screw section (72) is inserted and is equipped with control by temperature change safety mechanism, and control by temperature change safety mechanism includes insurance casing (73) and two temperature insurance pipe (74), and two temperature insurance pipe (74) set up respectively in the inside of insurance casing (73) and establish ties respectively between two straightway (71) and controlling means, the lower tip fixed mounting of insurance casing (73) in boiler (4), upper end stretches into the central part of screw section (72).
  6. 6. The capsule coffee machine with improved heating structure according to claim 5, wherein the temperature sensing mechanism (6) comprises an NTC sensor (61) and a temperature sensing metal shell (62), the NTC sensor (61) is fixedly arranged in the temperature sensing metal shell (62), the temperature sensing metal shell (62) is fixedly arranged at the lower part of the boiler (4) and extends into the boiler (4), and the NTC sensor (61) is electrically connected with the control device; The water level sensing mechanism comprises a first water level connecting wire (51), a second water level connecting wire (52) and a water level sensing probe (53), one end of the first water level connecting wire (51) is electrically connected with a temperature sensing metal shell (62), the other end of the first water level connecting wire is electrically connected with a control device, the upper portion of the water level sensing probe (53) is fixedly arranged on the upper portion of a boiler (4), the lower portion of the water level sensing probe (53) stretches into the boiler (4), the lower end portion of the water level sensing probe (53) is located above the spiral section (72), and one end of the second water level connecting wire (52) is electrically connected with the upper end portion of the water level sensing probe (53) and the other end of the second water level connecting wire is electrically connected with the control device.
  7. 7. The capsule coffee machine with improved heating structure according to claim 5, wherein the boiler (4) comprises a furnace body (41) and a furnace cover (42), the furnace cover (42) is arranged on the upper part of the furnace body (41) in a sealing way, the heating tube (7) and the water level sensing mechanism are respectively and fixedly arranged on the furnace cover (42), the temperature sensing mechanism (6) and the temperature control safety mechanism are both arranged on the lower part of the furnace body (41), The valve body (31) comprises an upper shell (311) and a lower shell (314), the upper shell (311) is connected to the upper portion of the lower shell (314) in a clamping mode, the water inlet hole (312) is formed in the upper portion of the upper shell (311), a sliding column (316) is downwards extended from the central portion of the lower shell (314), a sliding hole (317) is formed in the central portion of the sliding column (316), the lower portion of the water injection pressure release rod (34) penetrates through the water inlet hole (312) to be slidably mounted in the sliding hole (317), the diameter of the water inlet hole (312) is larger than that of the water injection pressure release rod (34), and a plurality of water outlet holes (315) are formed in the periphery of the sliding column (316).
  8. 8. The capsule coffee machine with the improved heating structure according to claim 7, wherein the sealing valve core (32) is a soft rubber ring, an annular mounting groove (321) is formed in the inner ring of the sealing valve core (32), an annular mounting table (343) is arranged on the outer side of the lower portion of the water injection and release rod (34), the annular mounting groove (321) is in buckling connection with the annular mounting table (343), an upward protruding sealing ring (322) is arranged on the outer edge of the upper end face of the sealing valve core (32), the diameter of the sealing ring (322) is larger than that of the water inlet hole (312), and the upper end of the return spring (33) abuts against the sealing valve core (32) or the annular mounting table (343) and the lower end abuts against the lower shell (314); The outside of the lower part of water injection release lever (34) still is provided with at least one spacing (344) and stopper (345), and spacing (344) are located the top of annular mount (343), and stopper (345) are located the top of epitheca (311), epitheca (311) are provided with spacing groove (313), spacing (344) and spacing groove (313) spacing cooperation, and stopper (345) and epitheca (311) spacing cooperation.
  9. 9. The capsule coffee machine with improved heating structure according to claim 8, wherein the slide column (316) is sleeved with a splash guard (35), the lower part of the splash guard (35) gradually extends outwards from top to bottom to form a horn-shaped splash guard (35), and the diameter of the lower end part of the splash guard (35) is larger than or equal to that of the lower shell (314).
  10. 10. The capsule coffee machine with improved heating structure according to claim 5, characterized in that the water tank (2) or the housing (1) is provided with a closing sensor for detecting the opening and closing of the upper cover (22), the closing sensor being electrically connected with the control device; The extraction mechanism (9) comprises an extraction cup (91) for placing capsule coffee and a water injection needle (94) for penetrating the package of the capsule coffee and injecting water inwards, a liquid outlet (92) is arranged at the lower part of the extraction cup (91), a needle (93) extending upwards into the extraction cup (91) is arranged at the side of the liquid outlet (92), The upper part of the outer shell (1) is provided with a mounting cavity, the mounting cavity is provided with an inner shell (11), the box body (21) is formed at the rear part of the inner shell (11), the extraction cup (91) is formed at the front part of the inner shell (11), the rear side of the upper cover (22) is hinged with the rear part of the inner shell (11) or the outer shell (1), the upper cover (22) covers the mounting cavity, The water injection needle (94) is arranged on the upper cover (22) and is positioned above the extraction cup (91), an upper connecting pipe fitting (23) is arranged in the middle of the upper cover (22), a lower connecting pipe fitting (12) is arranged in the middle of the inner shell (11), the upper end part of the upper connecting pipe fitting (23) is connected with the upper end part of the water injection needle (94) through an upper connecting pipeline (24), the lower end part of the upper connecting pipe fitting (23) is movably connected with the upper end part of the lower connecting pipe fitting (12), The lower end part of the lower connecting pipe fitting (12) is connected with the water outlet (82) through a lower connecting pipeline (14), The water pump (13) is arranged on the lower connecting pipeline (14).

Description

Improve heating structure's capsule coffee machine Technical Field The invention relates to the technical field of coffee machines, in particular to a capsule coffee machine with an improved heating structure. Background The capsule coffee machine is a machine for extracting capsule coffee, the capsule coffee machine is used for heating water before extraction, the heating structure of the capsule coffee machine is mainly divided into heat storage type and instant heating type, the heat storage type heating structure can heat water to a higher temperature, the water outlet pressure and flow are large, the instant heating type heating speed is high, waiting is not needed, the water pressure and flow are small, two ends of a heating tube used by the heat storage type heating mechanism in the prior art penetrate out from the lower part or the side surface of a boiler, the sealing surfaces of the lower part and the side surface of the boiler are large, the sealing surfaces are lower than a water level line, the capsule coffee machine is easy to burn once water leakage occurs, even electric shock and other risks occur, the safety and reliability are poor, in addition, in the water boiling process, the boiler can generate larger pressure, in the prior art, the boiler and the water tank are required to be connected through a pipeline, the pressure in the boiler is released into the water tank through an exhaust valve, the structure is complex, the cost is high, and the exhaust valve has explosion risks once failure, and the reliability and stability are poor. On the other hand, the capsule coffee machine in the prior art must use pure water, such as scale and other impurities generated in the boiler when tap water or spring water is used, and the impurities can block pumps, valves and pipelines after long-term use, so that the capsule coffee machine is damaged, the use requirement is high, and the failure rate is high, so that improvement is needed. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide the capsule coffee machine with an improved heating structure, which has the advantages of simple structure, low cost, reduced water leakage risk, improved reliability and stability, increased safety and capability of filtering and discharging scale impurities in a boiler. In order to achieve the aim, the technical scheme adopted by the invention is that the capsule coffee machine with an improved heating structure comprises a shell, a control device, a water tank, a boiler, an extraction mechanism and at least one water pump, wherein the control device, the water tank, the extraction mechanism and the at least one water pump are arranged in the shell, the control device is electrically connected with the water pump, the water tank is connected with the boiler, the boiler is connected with the extraction mechanism, the water pump is connected between the boiler and the extraction mechanism in series, the water tank comprises a box body, an upper cover and a water injection pressure relief valve, the lower part of the box body is provided with a water filling port, the water filling port is connected with the boiler, the upper cover is hinged to one side of the box body or the shell, the water injection pressure relief valve is arranged at the water filling port, The water injection pressure release valve comprises a valve body, a sealing valve core, a reset spring and a water injection pressure release rod, wherein the valve body is embedded in a water injection port, the upper part of the valve body is provided with a water inlet hole, the lower part of the valve body is provided with a water outlet hole, the water inlet hole is communicated with the inside of a water tank, the water outlet hole is communicated with the inside of a boiler, the lower part of the water injection pressure release rod is vertically and slidably arranged in the valve body, the sealing valve core is sleeved at the lower part of the water injection pressure release rod and is positioned in the valve body, the reset spring is arranged below the sealing valve core, the inside of the water injection pressure release rod is hollow, the lower end part of the water injection pressure release rod is provided with an air inlet, the air inlet is communicated with the inner cavity of the boiler, the upper end part of the water injection pressure release rod extends to the upper part of the tank and is in propped fit with an upper cover, and one side of the upper part of the water injection pressure release rod is provided with at least one air outlet; The boiler is internally provided with a water level sensing mechanism, a temperature sensing mechanism and a heating tube, wherein two ends of the heating tube respectively extend out of the upper end face of the boiler and are electrically connected with the control device, a heating gap is arranged between the heating tube and the inner side wall of