Steam valve and waterway mechanism

Abstract

The utility model relates to the technical field of coffee machines, in particular to a steam valve which comprises a steam valve body, a cavity is formed in the steam valve body, and a water inlet, a water outlet and a pressure relief opening which are communicated with the cavity are formed in the steam valve body. And the motor device is arranged corresponding to the steam valve and is used for opening or closing the water outlet and opening or closing the pressure relief opening. Through the arrangement, the steam valve structure formed by matching the motor device and the steam valve is good in operation stability and long in service life, the motor device is used for opening or closing the water outlet, when the water outlet is opened, the water inlet, the cavity and the water outlet are communicated, and when the pressure relief opening is opened, the water inlet, the cavity and the pressure relief opening are communicated.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to a steam valve and a water channel mechanism. Background Art

[0002] A coffee machine is a device that allows people to easily make coffee. With the development of society, coffee machines are becoming increasingly popular. One type of coffee machine is a milk frother. Currently, most milk frothers on the market have a variety of water systems. Their purpose is to provide hot water for brewing coffee and steam for frothing milk. Most of these water systems use the following two methods:

[0003] One is to use a dual boiler for hot water and steam, that is, a boiler for supplying hot water and a boiler for supplying steam coexist, such as the utility model patent with announcement number CN116268952A which discloses a coffee making system;

[0004] The other method is to use a single boiler, which can be used to supply both hot water and steam. For example, the utility model patent with announcement number CN219742471U discloses a water system for a milk coffee machine.

[0005] In the above-mentioned prior art, electromagnetic valves are used for supplying steam water, but their operation stability is poor and the service life of the electromagnetic valves is short.

[0006] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0007] In order to solve the problems of the prior art, the utility model provides a steam valve with good operating stability and long service life.

[0008] In order to achieve the above-mentioned purpose, the technical solution applied by the present utility model is as follows:

[0009] A steam valve comprises a steam valve having a cavity formed therein and provided with a water inlet, a water outlet and a pressure relief port connected to the cavity; and a motor device, the motor device being arranged corresponding to the steam valve and being used to open or close the water outlet and to open or close the pressure relief port.

[0010] According to the above scheme, the motor device includes a motor and a transmission shaft, the first end of the transmission shaft is connected to the output end of the motor, and the second end of the transmission shaft is arranged corresponding to the steam valve. When the motor drives the transmission shaft to rotate forward, the water outlet opens; when the motor drives the transmission shaft to rotate reversely, the pressure relief port opens.

[0011] According to the above scheme, the steam valve is provided with a first valve needle and a second valve needle, the first valve needle is used to open or close the water outlet, and the second valve needle is used to open or close the pressure relief port; the transmission shaft is provided with a first drive block and a second drive block, when the motor drives the transmission shaft to rotate forward, the first drive block pushes the first valve needle to move, and the water outlet opens; when the motor drives the transmission shaft to rotate reversely, the second drive block pushes the second valve needle to move, and the pressure relief port opens.

[0012] According to the above solution, the first valve needle and the second valve needle are respectively provided with a first reset elastic member and a second reset elastic member.

[0013] According to the above scheme, the first valve needle and the second valve needle are arranged horizontally at intervals on the steam valve; the first drive block and the second drive block are staggered on the outer wall of the transmission shaft. When the first drive block pushes the first valve needle to operate, the second drive block is staggered with the second valve needle; when the second drive block pushes the second valve needle to operate, the first drive block is staggered with the first valve needle.

[0014] According to the above scheme, a stop block is provided on the steam valve, and a first limit block and a second limit block are provided on the drive shaft; when the motor drives the drive shaft to rotate forward until the first limit block abuts against the stop block, the first drive block pushes the first valve needle to move, and when the motor drives the drive shaft to rotate reversely until the second limit block abuts against the stop block, the second drive block pushes the second valve needle to move.

[0015] According to the above solution, a limiting guide groove is provided on the steam valve, and a limiting guide block is provided on the transmission shaft, and the limiting guide block is arranged in coordination with the limiting guide groove.

[0016] The water channel mechanism includes a first brewing device, a second brewing device, a water supply device, a heating boiler, a three-way valve, a steam device and the above-mentioned steam valve; the water supply device is connected to the heating boiler through pipeline 1, the heating boiler is connected to the three-way valve through pipeline 2, the three-way valve is connected to the water inlet of the first brewing device and the steam valve through pipeline 3 and pipeline 4 respectively, the water outlet of the steam valve is connected to the steam device through pipeline 5, the steam device and the second brewing device are arranged correspondingly, and the pressure relief port of the steam valve is connected to pipeline 6 for pressure relief.

[0017] According to the above solution, the water supply device includes a water tank and a water pump, and the water inlet and outlet of the water pump are respectively connected to the water tank and pipeline one.

[0018] According to the above solution, a flow meter safety valve is provided on the pipeline 1.

[0019] Beneficial effects of the utility model:

[0020] The utility model is configured such that a steam valve structure composed of a motor device and a steam valve has good operating stability and a long service life, wherein the motor device is used to open or close the water outlet. When the water outlet is opened, the water inlet, the cavity and the water outlet are connected. When the pressure relief port is opened, the water inlet, the cavity and the pressure relief port are connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the assembly of the steam valve and motor device of the utility model;

[0022] Figure 2 This is a cross-sectional view of the steam valve of the utility model;

[0023] Figure 3 This is an exploded view of the steam valve and motor device of the utility model;

[0024] Figure 4 This is a schematic block diagram of a waterway mechanism in which the utility model is applied;

[0025] Figure 5 This is a schematic diagram of the exterior of a milk coffee machine in which the utility model is applied;

[0026] Figure 6 The utility model is applied to the internal schematic diagram of a milk foam coffee machine.

[0027] In the picture:

[0028] 1. Milk coffee machine; 2. First brewing device; 3. Second brewing device; 4. Water tank; 5. Water pump; 6. Flow meter safety valve; 7. Heating boiler; 8. Three-way valve; 9. Steam valve; 10. Motor device; 11. Milk tank steam device; 12. Water collecting tank; 21. Motor; 22. Drive shaft; 31. First drive block; 32. Second drive block; 33. Limit guide block; 41. First limit block; 42. Second limit block; 51. First valve needle; 52. Second valve needle; 53. Stop block; 61. Pipeline 1; 62. Pipeline 2; 63. Pipeline 3; 64. Pipeline 4; 65. Pipeline 5; 66. Pipeline 6; 71. Water inlet; 72. Water outlet; 73. Pressure relief port; 81. Limit guide groove; 91. Cavity. DETAILED DESCRIPTION

[0029] The technical solution of the present utility model is described below with reference to the accompanying drawings and embodiments.

[0030] like Figures 1 to 3As shown, the steam valve described in the present invention includes a steam valve 9, wherein a cavity 91 is formed in the steam valve 9, and the steam valve 9 is provided with a water inlet 71, a water outlet 72, and a pressure relief port 73 connected to the cavity 91; and a motor device, wherein the motor device is arranged corresponding to the steam valve 9 and is used to open or close the water outlet 72, and open or close the pressure relief port 73. With this arrangement, the steam valve structure composed of the motor device and the steam valve 9 has good operational stability and a long service life, wherein the motor device is used to open or close the water outlet 72. When the water outlet 72 is opened, the water inlet 71, the cavity 91, and the water outlet 72 are connected. When the pressure relief port 73 is opened, the water inlet 71, the cavity 91, and the pressure relief port 73 are connected.

[0031] Specifically, the motor assembly includes a motor 21 and a transmission shaft 22. The first end of the transmission shaft 22 is connected to the output terminal of the motor 21, and the second end of the transmission shaft 22 is positioned corresponding to the steam valve 9. When the motor 21 drives the transmission shaft 22 in the forward direction, the water outlet 72 opens; when the motor 21 drives the transmission shaft 22 in the reverse direction, the pressure relief vent 73 opens. This arrangement allows the water outlet 72 or the pressure relief vent 73 to open by driving the transmission shaft 22 in the forward and reverse directions, providing ease of use.

[0032] Furthermore, the steam valve 9 is provided with a first valve needle 51 and a second valve needle 52, the first valve needle 51 is used to open or close the water outlet 72, and the second valve needle 52 is used to open or close the pressure relief port 73; the transmission shaft 22 is provided with a first drive block 31 and a second drive block 32, when the motor 21 drives the transmission shaft 22 to rotate forward, the first drive block 31 pushes the first valve needle 51 to move, and the water outlet 72 opens; when the motor 21 drives the transmission shaft 22 to rotate reversely, the second drive block 32 pushes the second valve needle 52 to move, and the pressure relief port 73 opens.

[0033] In practical applications, the first driving block 31 and the second driving block 32 are protruded from the outer wall of the transmission shaft 22 .

[0034] Specifically, the first valve needle 51 and the second valve needle 52 are respectively provided with a first resetting elastic member and a second resetting elastic member. In this configuration, in the initial state, under the elastic force of the first resetting elastic member, the first valve needle 51 and the second valve needle 52 are in a state of closing the water outlet 72 and the pressure relief port 73. When the motor 21 drives the transmission shaft 22 to drive the first drive block 31 to push the first valve needle 51 to operate, the first resetting elastic member is compressed, and the water outlet 72 is opened. When the motor 21 drives the transmission shaft 22 to drive the first drive block 31 to disengage from the first valve needle 51, the first valve needle 51 is reset under the rebound force of the first resetting elastic member, and the first valve needle 51 recloses the water outlet 72. Similarly, when the motor 21 drives the transmission shaft 22 to drive the second drive block 32 to push the second valve needle 52 to operate, the second resetting elastic member is compressed, and the pressure relief port 73 is opened. When the motor 21 drives the transmission shaft 22 to drive the second drive block 32 to disengage from the second valve needle 52, the second valve needle 52 is reset under the rebound force of the second resetting elastic member, and the second valve needle 52 recloses the pressure relief port 73.

[0035] Furthermore, the first valve needle 51 and the second valve needle 52 are horizontally spaced apart and arranged on the steam valve 9; the first drive block 31 and the second drive block 32 are staggered on the outer wall of the transmission shaft 22. When the first drive block 31 pushes the first valve needle 51 to operate, the second drive block 32 is staggered with the second valve needle 52; when the second drive block 32 pushes the second valve needle 52 to operate, the first drive block 31 is staggered with the first valve needle 51. This arrangement ensures that the first valve needle 51 and the second valve needle 52 do not interfere with each other during operation. When the first drive block 31 pushes the first valve needle 51 to operate, the water outlet 72 opens and the pressure relief port 73 is closed; when the second drive block 32 pushes the second valve needle 52 to operate, the pressure relief port 73 opens and the water outlet 72 is closed. More specifically, the water outlet 72 and the pressure relief port 73 will not open simultaneously, but only one of them can open separately. That is, when the water outlet 72 opens, the pressure relief port 73 closes, and when the pressure relief port 73 opens, the water outlet 72 closes.

[0036] Furthermore, a stop block 53 is provided on the steam valve 9, and a first limit block 41 and a second limit block 42 are provided on the drive shaft 22; when the motor 21 drives the drive shaft 22 to rotate forward until the first limit block 41 abuts against the stop block 53, the first drive block 31 pushes the first valve needle 51 to move; when the motor 21 drives the drive shaft 22 to rotate reversely until the second limit block 42 abuts against the stop block 53, the second drive block 32 pushes the second valve needle 52 to move. In this way, the first limit block 41 and the second limit block 42 can be used to limit the stroke of the drive shaft 22 during forward and reverse rotation, that is, when the motor 21 drives the drive shaft 22 to rotate forward until the first limit block 41 abuts against the stop block 53, the drive shaft 22 is at the maximum stroke of forward rotation and can no longer rotate forward. At this time, the first drive block 31 pushes the first valve needle 51 to move; when the motor 21 drives the drive shaft 22 to rotate reversely and the second limit block 42 abuts against the stop block 53, the drive shaft 22 is at the maximum stroke of reverse rotation and can no longer rotate reversely. At this time, the second drive block 32 pushes the second valve needle 52 to move.

[0037] In actual applications, the first limiting block 41 and the second limiting block 42 are an integrated structure, protruding from the outer wall of the transmission shaft 22 , and staggered between the first driving block 31 and the second driving block 32 .

[0038] Furthermore, the steam valve 9 is provided with a limiting guide groove 81, and the transmission shaft 22 is provided with a limiting guide block 33, which cooperates with the limiting guide groove 81. This arrangement allows the transmission shaft 22 to rotate only relative to the steam valve 9, but not to move left or right relative to the steam valve 9, thereby preventing the transmission shaft 22 and the steam valve 9 from changing positions. More specifically, this arrangement ensures that the first drive block 31 and the first valve needle 51 are always in corresponding positions, the second drive block 32 and the second valve needle 52 are always in corresponding positions, and the first limiting block 41 and the second limiting block 42 and the stop block 53 are always in corresponding positions.

[0039] Of course, the positions of the limiting guide groove 81 and the limiting guide block 33 can be interchanged, that is, the limiting guide groove 81 is provided on the transmission shaft 22, and the limiting guide block 33 is provided on the steam valve 9, which can achieve the same effect.

[0040] like Figure 4As shown, the water channel mechanism described in the present invention includes a first brewing device 2, a second brewing device 3, a water supply device, a heating boiler 7, a three-way valve 8, a steam device 11 and the above-mentioned steam valve 9; the water supply device is connected to the heating boiler 7 through a pipeline 1 61, the heating boiler 7 is connected to the three-way valve 8 through a pipeline 2 62, the three-way valve 8 is connected to the first brewing device 2 and the water inlet 71 of the steam valve 9 through a pipeline 3 63 and a pipeline 4 64 respectively, the water outlet 72 of the steam valve 9 is connected to the steam device 11 through a pipeline 5 65, the steam device 11 is arranged corresponding to the second brewing device 3, and the pressure relief port 73 of the steam valve 9 is connected to a pipeline 6 66 for pressure relief.

[0041] It should be noted that the water channel mechanism of the present invention can be used in coffee machines as well as other beverage machines. Here, this embodiment is described by taking a milk foam coffee machine 1 as an example, wherein the first brewing device 2 is preferably a coffee brewing head, and the second brewing device 3 is preferably a milk foaming device;

[0042] like Figure 5 and Figure 6 As shown, during operation, cold water is supplied to the heating boiler 7 via the water supply device through the first pipe 61, and the heating boiler 7 heats the cold water into hot water; when brewing coffee, the hot water is sent to the first brewing device 2 (coffee brewing head) through the second pipe 62, the three-way valve 8, and the third pipe 63 to provide hot water for brewing coffee; when frothing milk, the hot water is sent to the steam device 11 through the second pipe 62, the three-way valve 8, the fourth pipe 64, the steam valve 9, and the fifth pipe 65 to generate steam, which enters the second brewing device 3 (milk frothing device) to provide steam for frothing milk; the utility model adopts a water channel structure composed of a single heating boiler 7, which not only reduces the number of components in the entire water channel and reduces costs, but also improves the operational stability of the water channel.

[0043] Specifically, the water supply device includes a water tank 4 and a water pump 5. The water inlet and outlet of the water pump 5 are connected to the water tank 4 and pipe 1 61, respectively. This arrangement allows the water pump 5 to supply cold water from the water tank 4 to the heating boiler 7, while also providing power for the entire water circuit. The present invention utilizes a single water pump 5 for the water circuit, which not only reduces the number of components in the entire water circuit, lowering costs, but also ensures operational stability.

[0044] Furthermore, a flow meter safety valve 6 is provided on the pipeline 1 61. This arrangement can provide an appropriate amount of water to the heating boiler 7 according to actual needs.

[0045] Furthermore, the milk coffee machine 1 is provided with a controller and a water collection tank 12. The controller is used to control the operation of various devices, such as the water pump 5, the heating boiler 7, the motor 21, etc. The water collection tank 12 is used to collect liquid overflowing from the cup when receiving coffee liquid or milk foam, as well as water and steam discharged through the pressure relief port 73 of the steam valve 9 and the pipeline 66, to prevent environmental pollution.

[0046] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the scope of protection of the present invention.

Claims

1. A steam valve, characterized in that: The steam valve (9) comprises a cavity (91) formed in the steam valve (9), and a water inlet (71), a water outlet (72) and a pressure relief port (73) connected to the cavity (91) are provided on the steam valve (9); A motor device is provided corresponding to the steam valve (9) and is used for opening or closing the water outlet (72) and opening or closing the pressure relief port (73).

2. A steam valve according to claim 1, characterized in that: The motor device comprises a motor (21) and a transmission shaft (22), wherein a first end of the transmission shaft (22) is connected to an output end of the motor (21), and a second end of the transmission shaft (22) is arranged corresponding to a steam valve (9). When the motor (21) drives the transmission shaft (22) to rotate in a forward direction, the water outlet (72) opens; when the motor (21) drives the transmission shaft (22) to rotate in a reverse direction, the pressure relief port (73) opens.

3. A steam valve according to claim 2, characterized in that: The steam valve (9) is provided with a first valve needle (51) and a second valve needle (52), the first valve needle (51) is used to open or close the water outlet (72), and the second valve needle (52) is used to open or close the pressure relief port (73); the transmission shaft (22) is provided with a first driving block (31) and a second driving block (32), when the motor (21) drives the transmission shaft (22) to rotate in the forward direction, the first driving block (31) pushes the first valve needle (51) to move, and the water outlet (72) is opened; when the motor (21) drives the transmission shaft (22) to rotate in the reverse direction, the second driving block (32) pushes the second valve needle (52) to move, and the pressure relief port (73) is opened.

4. A steam valve according to claim 3, characterized in that: The first valve needle (51) and the second valve needle (52) are respectively provided with a first resetting elastic member and a second resetting elastic member.

5. A steam valve according to claim 3, characterized in that: The first valve needle (51) and the second valve needle (52) are arranged horizontally and spaced apart on the steam valve (9); the first drive block (31) and the second drive block (32) are arranged staggered on the outer wall of the transmission shaft (22); when the first drive block (31) pushes the first valve needle (51) to move, the second drive block (32) and the second valve needle (52) are staggered; when the second drive block (32) pushes the second valve needle (52) to move, the first drive block (31) and the first valve needle (51) are staggered.

6. A steam valve according to claim 3, characterized in that: The steam valve (9) is provided with a stop block (53), and the transmission shaft (22) is provided with a first limit block (41) and a second limit block (42); when the motor (21) drives the transmission shaft (22) to rotate in the forward direction until the first limit block (41) abuts against the stop block (53), the first drive block (31) pushes the first valve needle (51) to operate; when the motor (21) drives the transmission shaft (22) to rotate in the reverse direction until the second limit block (42) abuts against the stop block (53), the second drive block (32) pushes the second valve needle (52) to operate.

7. The steam valve according to claim 3, characterized in that: The steam valve (9) is provided with a limiting guide groove (81), the transmission shaft (22) is provided with a limiting guide block (33), and the limiting guide block (33) is matched with the limiting guide groove (81).

8. A waterway mechanism, characterized in that: The invention comprises a first brewing device (2), a second brewing device (3), a water supply device, a heating boiler (7), a three-way valve (8), a steam device (11) and the steam valve (9) according to any one of claims 1 to 7; the water supply device is connected to the heating boiler (7) through a pipeline 1 (61), the heating boiler (7) is connected to the three-way valve (8) through a pipeline 2 (62), the three-way valve (8) is connected to the first brewing device (2) and the water inlet (71) of the steam valve (9) through a pipeline 3 (63) and a pipeline 4 (64), respectively, the water outlet (72) of the steam valve (9) is connected to the steam device (11) through a pipeline 5 (65), the steam device (11) and the second brewing device (3) are arranged correspondingly, and the pressure relief port (73) of the steam valve (9) is connected to a pipeline 6 (66) for pressure relief.

9. The waterway mechanism according to claim 8, characterized in that: The water supply device comprises a water tank (4) and a water pump (5), wherein the water inlet and the water outlet of the water pump (5) are respectively connected to the water tank (4) and the pipeline 1 (61).

10. The waterway mechanism according to claim 9, characterized in that: The pipeline 1 (61) is provided with a flow meter safety valve (6).

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