Air pressure warning valve and sparkling water machine

Abstract

The utility model relates to the technical field of food processing devices, in particular to an air pressure warning valve, and discloses a sparkling water machine at the same time. Comprising a pressure release valve, a warning indicator is arranged on the pressure release valve, the warning indicator comprises an exhaust channel and a sound production structure, and an exhaust port of the pressure release valve is communicated with the exhaust channel; the sound production structure and the exhaust channel are correspondingly arranged, and when airflow exhausted from the pressure release valve is blown to the sound production structure through the exhaust channel, the sound production structure gives out warning sound; according to the air pressure warning valve and the sparkling water machine, the warning device gives out warning sound through air flow exhausted by the pressure relief valve, the sound production structure can respond in time in the pressure relief process, a user is reminded of the working state of equipment, a power source is not needed for supplying power, application is wide, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing devices, in particular to an air pressure warning valve, and also discloses a bubble water machine. Background Art

[0002] Some current household appliances require the use of steam or high-pressure gas, such as pressure cookers, steam irons, coffee machines, and sparkling water machines. These devices are usually also equipped with pressure relief valves to ensure the safety of the equipment during use, such as the pressure relief cover on the pressure relief nozzle of a pressure cooker. When the pressure inside the device is greater than the set pressure, the pressure will be transmitted to the pressure relief valve through the pressure relief channel. The pressure relief valve will automatically open the pressure relief channel to relieve the pressure, so that the pressure inside the device is within a safe range. The airflow will produce sound during the pressure relief process of the pressure relief valve, but the sound of the airflow is not stable, especially near the critical point, the weak sound of the airflow cannot serve as a warning. For this reason, some devices are also equipped with electronic alarms to remind users, but on products such as sparkling water machines that do not contain circuits, electronic alarms are difficult to use in a compatible manner.

[0003] Chinese patent CN210566478U discloses a safety valve with a safety warning, including a valve body, a valve cover and an ejector pin. The valve body is inserted into the valve cover from the bottom end of the valve cover upwards. The valve body is hollow. The bottom end of the ejector pin is arranged in the valve body and the top end extends upwards out of the valve body. The ejector pin can move up and down relative to the valve body. A through hole is provided at the top end of the valve cover. The positions of the ejector pin and the through hole correspond. A warning mark used as a safety warning is provided at the top end of the ejector pin. By providing a warning mark at the top end of the ejector pin, when there is steam in the machine, it can be displayed to the user through the through hole provided on the valve cover, thereby playing the role of a safety warning. The existing safety warning method requires the operator to observe in order to play a warning role, and the operator is still prone to negligence, resulting in safety risks. In addition, the overall structure is complicated, which is not conducive to promotion and application.

[0004] Therefore, the prior art still needs to be improved and developed. Utility Model Content

[0005] The utility model aims to provide an air pressure warning valve and a bubble water machine with reasonable structure, high safety and good warning effect in view of the defects and shortcomings of the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] The utility model discloses a pressure warning valve, including a pressure relief valve, on which a warning device is provided, which includes an exhaust channel and a sound-generating structure, wherein the exhaust port of the pressure relief valve is connected to the exhaust channel; the sound-generating structure is arranged corresponding to the exhaust channel, and when the airflow discharged from the pressure relief valve passes through the exhaust channel and blows toward the sound-generating structure, the sound-generating structure emits a warning sound. The warning device emits a warning sound using the airflow discharged from the pressure relief valve, and the sound-generating structure can respond immediately during the pressure relief process to remind the user of the working status of the device, and does not require power supply, has a wide range of applications, and is highly safe.

[0008] According to the above scheme, the sound-generating structure includes a whistle cavity and a guide slope, an exhaust channel is arranged on the first end of the alarm, the whistle cavity is arranged on the second end of the alarm, and an air inlet is arranged between the exhaust channel and the whistle cavity; an opening is arranged on the side wall of the whistle cavity, and the side wall of the whistle cavity at the opening forms a guide slope, and the acute angle end of the guide slope faces the air inlet. The first end of the alarm is opened, and the alarm is connected to the pressure relief valve through the port of the first end. The airflow in the pressure relief valve is discharged outward from the exhaust channel of the alarm. Since the pressure relief valve, the air inlet and the whistle cavity are in the same direction, some airflows are blown to the whistle cavity through the air inlet. These airflows are divided at the guide slope, and some airflows enter the whistle cavity to generate a circulation and then are discharged from the opening, and some airflows are directly discharged from the opening. The two parts of airflow form a turbulent flow at the opening to generate a whistle sound, thereby emitting a continuous warning sound to remind the user. The overall structure is simple and the processing is relatively convenient.

[0009] According to the above scheme, the acute-angled end of the guide slope is located on the central axis of the air inlet, and the preferred acute-angled end is used to divide the airflow passing through the air inlet, so that part of the airflow enters the whistle cavity.

[0010] According to the above scheme, the sound-generating structure includes a flute core, an exhaust channel is arranged in the alarm and passes through both ends of the alarm, the flute core is arranged in the exhaust channel and is fixedly connected to the alarm, the flute core divides the exhaust channel into a first chamber and a second chamber, and a vibrating reed is arranged on the flute core. The alarm adopts a round tube structure, the flute core is inserted into the round tube structure and is integrated with the alarm, one end of the alarm is connected to the pressure relief valve, so that the exhaust channel inside is connected to the pressure relief valve, and when the airflow passes through the exhaust channel, it can push the vibrating reed to vibrate continuously to generate high-frequency sound waves to prompt the user. The flute core is an independent accessory, and the alarm can be matched with pressure relief valves of different calibers, that is, one end of the alarm can be of multiple calibers, while the exhaust channel of the main part of the alarm is of the same caliber, so as to assemble a standard flute core for use. This alarm can be used with pressure relief valves of different specifications.

[0011] According to the above scheme, the flute core is provided with a channel opening, the exhaust port of the pressure relief valve, the first chamber, the channel opening and the second chamber are connected in sequence, the vibrating reed is arranged in the channel opening, and one end of the vibrating reed is fixedly connected to the flute core. The flute core divides the exhaust channel into the first chamber and the second chamber, the first chamber and the second chamber are connected through the channel opening, the airflow in the pressure relief valve passes through the channel opening, and the vibrating reed is blown to continuously vibrate and generate high-frequency sound waves to prompt the user.

[0012] According to the above scheme, the sound-generating structure includes a vibration plate, a partition is provided in the exhaust channel, an air inlet is provided on the partition, and the vibration plate is movably arranged on the partition and covers the air inlet. The airflow discharged from the pressure relief valve enters from the air inlet, passes through the whistle cavity and is discharged from the air outlet. When the airflow passes through the air inlet, it pushes the vibration plate to move at a high frequency, continuously opens and closes the air inlet, thereby generating a warning sound with a specific amplitude and frequency.

[0013] According to the above scheme, an end seat is also provided in the exhaust channel, and an air outlet is provided on the end seat. The exhaust channel between the partition and the end seat constitutes a whistle chamber; a return spring is provided in the whistle chamber, and one end of the return spring contacts the end seat, and the other end of the return spring contacts the vibration plate, so that the vibration plate always tends to the partition and covers the air inlet. The return spring is used to provide continuous pressure, which is applied to the vibration plate so that it always tends to the partition and covers the air inlet. The airflow in the pressure relief valve blows through the air inlet, pushing the vibration plate away from the partition, and the airflow continuously acts on the vibration plate to cause it to vibrate and emit a warning sound.

[0014] According to the above scheme, the pressure relief valve is provided with a pressure relief channel, a cut-off port, a piston and a pressure relief spring are provided in the pressure relief channel, a pressure regulating terminal is provided in the pressure relief channel and is threadedly connected thereto, and an exhaust port is provided on the pressure regulating terminal; one end of the pressure relief spring touches the pressure regulating terminal, and the other end of the pressure relief spring touches the piston so that it always tends to the cut-off port, and a sealing gasket is provided on the piston end surface that cooperates with the cut-off port. The pressure relief channel runs through both ends of the pressure relief valve, and the cut-off port can be formed inside the pressure relief valve by changing the caliber. When the piston touches the cut-off port, the pressure relief channel is closed, and pressure and gas enter the pressure relief channel from the inlet end of the pressure relief valve. The pressure relief spring drives the piston to be closed on the cut-off port. When the pressure overcomes the force of the pressure relief spring, the piston disengages from the cut-off port, and the pressure gas can be discharged from the pressure relief channel. The pressure regulating terminal can change the compression amount of the pressure relief spring to adjust the critical pressure value of the pressure relief valve.

[0015] A sparkling water machine comprises a main unit, an inflatable component and a container, wherein the inflatable component is arranged on the main unit, the container is assembled on the inflatable component, and an air pressure warning valve is arranged on the inflatable component. The pressure relief valve of the air pressure warning valve is connected to the pipeline of the inflatable component, when the pressure in the inflatable component and the container exceeds a critical value, the air pressure warning valve releases the pressure and emits a warning sound at the same time, the air pressure warning valve does not need power supply, is flexible to use, and can effectively improve the safety of the device.

[0016] The utility model provides an air pressure warning valve and a bubble water machine. The warning device uses the airflow discharged by the pressure relief valve to emit a warning sound. During the pressure relief process, the sound-emitting structure can respond instantly to remind the user of the working status of the equipment. No power supply is required, the application is wide, and the safety is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the air pressure warning valve of Example 1 of the utility model;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of embodiment 1 of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the air pressure warning valve of Example 2 of the utility model;

[0020] Figure 4 It is a cross-sectional structural schematic diagram of embodiment 2 of the utility model;

[0021] Figure 5 It is a cross-sectional structural schematic diagram of embodiment 3 of the utility model;

[0022] Figure 6 It is a schematic diagram of the application of the air pressure warning valve of the utility model in a bubble water machine.

[0023] In the figure:

[0024] 1. Pressure relief valve; 2. Alarm; 3. Flute core; 4. Main unit; 11. Pressure relief channel; 12. Shut-off port; 13. Piston; 14. Pressure relief spring; 15. Voltage regulating terminal; 16. Exhaust port; 17. Sealing gasket; 21. Exhaust channel; 22. Whistle chamber; 23. Guide slope; 24. Air inlet; 25. Partition; 26. End seat; 27. Air outlet; 31. Channel opening; 32. Vibrating reed; 33. Reset spring; 34. Vibrating plate; 35. First chamber; 36. Second chamber; 41. Inflatable component; 42. Container. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is described below in conjunction with the accompanying drawings and embodiments.

[0026] Example 1

[0027] like Figure 1-2 As shown, a pressure warning valve described in the utility model includes a pressure relief valve 1, and the pressure relief valve 1 is provided with an alarm 2, and the alarm 2 includes an exhaust channel 21 and a sound-generating structure. The exhaust port 16 of the pressure relief valve 1 is connected to the exhaust channel 21; the sound-generating structure is arranged corresponding to the exhaust channel 21, and when the airflow discharged from the pressure relief valve 1 passes through the exhaust channel 21 and blows toward the sound-generating structure, the sound-generating structure emits a warning sound. The alarm 2 uses the airflow discharged from the pressure relief valve 1 to emit a warning sound. During the pressure relief process, the sound-generating structure can respond immediately to remind the user of the working status of the device. No power supply is required, and it is widely used and highly safe.

[0028] The pressure relief valve 1 is provided with a pressure relief channel 11, in which a cut-off port 12, a piston 13 and a pressure relief spring 14 are provided. A pressure regulating terminal 15 is provided in the pressure relief channel 11 and is threadedly connected thereto, and an exhaust port 16 is provided on the pressure regulating terminal 15; one end of the pressure relief spring 14 touches the pressure regulating terminal 15, and the other end of the pressure relief spring 14 touches the piston 13 so that it always tends to the cut-off port 12, and a sealing gasket 17 is provided on the end surface of the piston 13 that cooperates with the cut-off port 12. The pressure relief channel 11 runs through both ends of the pressure relief valve 1, and the cut-off port 12 can be formed inside the pressure relief valve 1 by changing the caliber. The piston 13 touches the cut-off port 12 to close the pressure relief channel 11, and the pressure and gas enter the pressure relief channel 11 from the inlet end of the pressure relief valve 1, and the pressure relief spring 14 drives the piston 13 to be sealed on the cut-off port 12. When the pressure overcomes the force of the pressure relief spring 14, the piston 13 disengages from the cut-off port 12, and the pressure gas can be discharged from the pressure relief channel 11. The pressure regulating terminal 15 can change the compression amount of the pressure relief spring 14 to adjust the critical pressure value of the pressure relief valve 1 .

[0029] The sound-generating structure includes a whistle cavity 22 and a guide slope 23. The exhaust channel 21 is arranged on the first end of the alarm 2, and the whistle cavity 22 is arranged on the second end of the alarm 2. An air inlet 24 is arranged between the exhaust channel 21 and the whistle cavity 22. An opening is arranged on the side wall of the whistle cavity 22, and a guide slope 23 is formed on the side wall of the whistle cavity 22 at the opening, and the acute angle end of the guide slope 23 faces the air inlet 24. The first end of the alarm device 2 is open, and the alarm device 2 is connected to the pressure relief valve 1 through the port at the first end. The airflow in the pressure relief valve 1 is discharged outward from the exhaust channel 21 of the alarm device 2. Since the pressure relief valve 1, the air inlet 24 and the whistle chamber 22 are in the same direction, some airflows are blown toward the whistle chamber 22 through the air inlet 24. These airflows are diverted at the guide slope 23. Part of the airflow enters the whistle chamber 22 to generate a circulation and then is discharged from the opening, and part of the airflow is directly discharged from the opening. The two parts of the airflow form a turbulent flow at the opening to generate a whistle sound, thereby emitting a continuous warning sound to prompt the user. The overall structure is simple and the processing is relatively convenient.

[0030] The acute-angled end of the guide slope 23 is located on the central axis of the air inlet 24 . The preferred acute-angled end is used to divide the airflow passing through the air inlet 24 so that part of the airflow enters the whistle cavity 22 .

[0031] Example 2

[0032] like Figure 3-4 As shown, the difference between this embodiment and embodiment 1 is that the sound-generating structure includes a flute core 3, an exhaust channel 21 is arranged in the alarm 2 and passes through both ends of the alarm 2, the flute core 3 is arranged in the exhaust channel 21 and is fixedly connected to the alarm 2, the flute core 3 divides the exhaust channel 21 into a first chamber 35 and a second chamber 36, and a vibrating reed 32 is arranged on the flute core 3. The alarm 2 adopts a round tube structure, the flute core 3 is inserted into the round tube structure and is integrally arranged with the alarm 2, one end of the alarm 2 is connected to the pressure relief valve 1, so that the exhaust channel 21 inside is connected to the pressure relief valve 1, and when the airflow passes through the exhaust channel 21, it can push the vibrating reed 32 to vibrate continuously to generate high-frequency sound waves to prompt the user. The flute core 3 is an independent accessory, and the alarm 2 can be matched with pressure relief valves 1 of different calibers, that is, one end of the alarm 2 can be of multiple calibers, while the exhaust channel 21 of the main part of the alarm 2 has the same caliber, so as to assemble the standard flute core 3 for use, and this alarm 2 can be used with pressure relief valves 1 of different specifications.

[0033] The flute core 3 is provided with a channel opening 31, and the exhaust port 16 of the pressure relief valve 1, the first chamber 35, the channel opening 31 and the second chamber 36 are connected in sequence. The vibrating reed 32 is arranged in the channel opening 31, and one end of the vibrating reed 32 is fixedly connected to the flute core 3. The flute core 3 divides the exhaust channel 21 into the first chamber 35 and the second chamber 36, and the first chamber 35 and the second chamber 36 are connected through the channel opening 31. The airflow in the pressure relief valve 1 passes through the channel opening 31, and the vibrating reed 32 is blown to continuously vibrate and generate high-frequency sound waves to prompt the user.

[0034] Example 3

[0035] like Figure 5 As shown, the difference between this embodiment and embodiment 2 is that the sound-generating structure includes a vibration plate 34, a partition 25 is provided in the exhaust passage 21, an air inlet 24 is provided on the partition 25, and the vibration plate 34 is movably arranged on the partition 25 and covers the air inlet 24. The airflow discharged from the pressure relief valve 1 enters from the air inlet 24, passes through the whistle cavity 22, and is discharged from the air outlet 27. When the airflow passes through the air inlet 24, it pushes the vibration plate 34 to move at a high frequency, continuously opens and closes the air inlet 24, thereby generating a warning sound with a specific amplitude and frequency.

[0036] The exhaust passage 21 is also provided with an end seat 26, and the end seat 26 is provided with an air outlet 27. The exhaust passage 21 between the partition 25 and the end seat 26 constitutes a whistle chamber 22. A return spring 33 is provided in the whistle chamber 22. One end of the return spring 33 contacts the end seat 26, and the other end of the return spring 33 contacts the vibration plate 34, so that the vibration plate 34 always tends to the partition 25 and covers the air inlet 24. The return spring 33 is used to provide continuous pressure, which is applied to the vibration plate 34 to make it always tend to the partition 25 and cover the air inlet 24. The airflow in the pressure relief valve 1 blows through the air inlet 24, pushing the vibration plate 34 away from the partition 25. The airflow continuously acts on the vibration plate 34 to make it vibrate to emit a warning sound.

[0037] like Figure 6 As shown, the utility model discloses a bubble water machine, comprising a main unit 4, an inflatable component 41 and a container 42, wherein the inflatable component 41 is arranged on the main unit 4, and the container 42 is assembled on the inflatable component 41, and an air pressure warning valve is arranged on the inflatable component 41. The pressure relief valve 1 of the air pressure warning valve is connected to the pipeline of the inflatable component 41, and when the pressure in the inflatable component 41 and the container 42 exceeds the critical value, the air pressure warning valve releases the pressure and emits a warning sound at the same time, and the air pressure warning valve does not need power supply, is flexible to use, and can effectively improve the safety of the device.

[0038] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A pressure warning valve, comprising a pressure relief valve, characterized in that: The pressure relief valve is provided with an alarm, which includes an exhaust channel and a sound-generating structure. The exhaust port of the pressure relief valve is connected to the exhaust channel. The sound-generating structure is arranged corresponding to the exhaust channel. When the airflow discharged from the pressure relief valve passes through the exhaust channel and blows toward the sound-generating structure, the sound-generating structure emits a warning sound.

2. The air pressure warning valve according to claim 1, characterized in that: The sound-generating structure includes a whistle cavity and a guide slope. The exhaust channel is arranged on the first end of the alarm device, the whistle cavity is arranged on the second end of the alarm device, and an air inlet is arranged between the exhaust channel and the whistle cavity. An opening is arranged on the side wall of the whistle cavity, and a guide slope is formed on the side wall of the whistle cavity at the opening, and the acute angle end of the guide slope faces the air inlet.

3. The air pressure warning valve according to claim 2, characterized in that: The acute angle end of the guide slope is located on the central axis of the air inlet.

4. The air pressure warning valve according to claim 1, characterized in that: The sound-generating structure includes a flute core, an exhaust passage is arranged in the alarm and passes through both ends of the alarm, the flute core is arranged in the exhaust passage and is fixedly connected to the alarm, the flute core divides the exhaust passage into a first chamber and a second chamber, and a vibrating reed is arranged on the flute core.

5. The air pressure warning valve according to claim 4, characterized in that: The flute core is provided with a channel opening, the exhaust port of the pressure relief valve, the first chamber, the channel opening and the second chamber are connected in sequence, the vibration reed is arranged in the channel opening, and one end of the vibration reed is fixedly connected to the flute core.

6. The air pressure warning valve according to claim 1, characterized in that: The sound-generating structure comprises a vibration plate. A partition is arranged in the exhaust passage, and an air inlet hole is arranged on the partition. The vibration plate can be movably arranged on the partition and covers the air inlet hole.

7. The air pressure warning valve according to claim 6, characterized in that: An end seat is also provided in the exhaust channel, and an air outlet is provided on the end seat. The exhaust channel between the partition and the end seat constitutes a whistle chamber. A return spring is provided in the whistle chamber, and one end of the return spring touches the end seat, and the other end of the return spring touches the vibration plate, so that the vibration plate always tends to the partition and covers the air inlet.

8. The air pressure warning valve according to any one of claims 1 to 7, characterized in that: The pressure relief valve is provided with a pressure relief channel, a cut-off port, a piston and a pressure relief spring are provided in the pressure relief channel, a pressure regulating terminal is provided in the pressure relief channel and is threadedly connected to the pressure relief channel, and an exhaust port is provided on the pressure regulating terminal; one end of the pressure relief spring touches the pressure regulating terminal, and the other end of the pressure relief spring touches the piston so that it always tends to the cut-off port, and a sealing gasket is provided on the end surface of the piston matching the cut-off port.

9. A sparkling water machine, comprising a main unit, an aeration component and a container, characterized in that: The inflatable component is arranged on the main machine, the container is assembled on the inflatable component, and the inflatable component is provided with the air pressure warning valve described in any one of claims 1-8.

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