CN221745143U - High-temperature and high-pressure resistant flowmeter for coffee machine - Google Patents

Abstract

The utility model belongs to the field of flow meters, in particular to a high-temperature and high-pressure resistant flow meter of a coffee machine, which aims at the problems that the existing conventional flow meters of the coffee machine on the market all adopt plastic shell materials and are low-pressure normal-temperature flow meters, so that the application range of the flow meter is limited, the service life is shortened, the metering accuracy of water quantity is reduced, and the use is inconvenient; the metering mechanism is arranged in the cavity and is used for metering the used water quantity; and the connecting mechanism is arranged on the bottom shell and used for disassembling and installing the face cover. When the flowmeter is used, the durability of the flowmeter is enhanced, the flowmeter has high temperature and high pressure resistance, the service life of the flowmeter is prolonged, the application range of the flowmeter is expanded, the accuracy of water metering is improved, and the applicability and the use effect are improved.

Description

A high temperature and high pressure flow meter for coffee machine

Technical Field

The utility model relates to the technical field of flow meters, in particular to a high temperature and high pressure resistant flow meter for a coffee machine.

Background Art

Flowmeter is an instrument that indicates the measured flow rate and/or the total amount of fluid in a selected time interval. In simple terms, it is an instrument used to measure the flow rate of fluid in a pipeline or open channel. Flowmeters are divided into differential pressure flowmeters, rotor flowmeters, positive displacement flowmeters, electromagnetic flowmeters, ultrasonic flowmeters, etc.

The existing flowmeters have a wide range of uses, and most common coffee machines contain flowmeters, which are used to measure the amount of water used. However, the existing coffee machine flowmeters have the following problems: conventional coffee machine flowmeters on the market currently use plastic shell materials and are low-pressure normal temperature flowmeters, which leads to a relatively limited scope of application of the flowmeter, shortens the service life, and reduces the measurement accuracy of the water volume, making it inconvenient to use. In response to the above problems, we proposed a high temperature and high pressure resistant flowmeter for coffee machines.

Utility Model Content

The utility model provides a high temperature and high pressure resistant flow meter for a coffee machine, which solves the problem in the prior art that conventional coffee machine flow meters on the market all use plastic shell materials and are low-pressure normal temperature flow meters, which results in a relatively limited application range of the flow meter, shortens the service life, reduces the measurement accuracy of water volume, and is inconvenient to use.

The utility model provides the following technical solutions:

A high temperature and high pressure flow meter for a coffee machine, comprising a bottom shell and a surface cover, wherein the surface cover is arranged on the top of the bottom shell, a cavity is formed on the top of the bottom shell, a water inlet and a water outlet are respectively formed on one side of the bottom shell, the water inlet and the water outlet are both connected to the cavity, and a nozzle is arranged on the inner wall of the water inlet;

A metering mechanism, which is disposed in the cavity and is used to measure the amount of water used;

The connecting mechanism is arranged on the bottom shell and is used for disassembling and installing the surface cover.

In one possible design, the metering mechanism includes an opening formed on the bottom side of the inner wall of the cavity, a rotating shaft is rotatably connected to the interior of the opening, an impeller is fixedly mounted on the outer wall of the rotating shaft, two fixing grooves are formed on the top of the impeller, and magnets are disposed inside the two fixing grooves.

In a possible design, a mounting groove is provided on the top of the surface cover, and a Hall sensor is disposed inside the mounting groove.

In a possible design, the connecting mechanism includes three screws, and the bottom shell and the surface cover are connected and fixed by the three screws. A sealing groove is provided on the top of the bottom shell, and a sealing ring is provided on the inner wall of the sealing groove to fit with the bottom side of the surface cover.

In a possible design, the bottom shell and the surface cover are both made of metal, and the sealing ring is made of fluororubber.

In a possible design, the impeller is made of polyvinylidene fluoride.

In the present application, when in use, the water volume is controlled by the solenoid valve, and the high-temperature and high-pressure water flow will enter from the water inlet end, and the high-speed water flow will be ejected through the nozzle on the inner wall of the water inlet into the cavity, and the high-speed water flow will drive the impeller in the cavity, and the impeller will rotate under the rotation of the rotating shaft set in the opening. At the same time, there are different apertures on the nozzle to choose from, which is conducive to adapting to different flow rate requirements, and the rotation of the impeller will drive the two magnets with opposite polarities installed in the fixed groove to rotate. The two magnets pass through the Hall sensor alternately, and then the Hall sensor can be triggered by the change of magnetic poles, and a pulse signal is output, so that the amount of water passing through the flow meter is proportional to the number of impeller rotations and the number of pulses output by the Hall sensor, thereby realizing the water volume metering function, achieving the metering effect, and enhancing the applicability;

After the flow meter has been used for a long time, the face cover can be removed by removing the screws, which is conducive to regular inspection of the impeller to prevent the rotation of the impeller from affecting the accuracy of water metering. After the inspection is completed, the face cover is fixed to the bottom shell by screws, thereby achieving the effect of convenient installation and removal of the face cover, improving convenience, and at the same time, the bottom side of the face cover will fit tightly with the sealing ring in the sealing groove, which is conducive to improving the sealing inside the cavity, and makes the face cover and the bottom shell sealed and connected, improving the use effect. Since the bottom shell and the face cover are both made of metal, the bottom shell and the face cover will be strengthened. The cover has excellent resistance to high temperature and high pressure. At the same time, the shaft is made of SUS316, which is beneficial to improve the flow accuracy and durability. The impeller made of polyvinylidene fluoride also has the function of resistance to high temperature and high pressure, and has strong adaptability. The sealing ring made of fluororubber also has the function of resistance to high temperature and high pressure. Therefore, the flow meter has strong durability during use, and has the performance of resistance to high temperature and internal high pressure. It not only enhances the service life of the flow meter, but also expands the application range of the flow meter. At the same time, it also improves the accuracy of water measurement, improves applicability and use effect.

The utility model has the following beneficial effects:

The utility model can make the amount of water passing through the flow meter proportional to the number of impeller rotations and the number of Hall sensor output pulses through the metering mechanism, thereby realizing the water metering function, achieving the metering effect and enhancing the applicability;

The utility model realizes the effect of convenient installation and removal of the cover through the connection mechanism, improves convenience, and is also beneficial to improving the sealing inside the cavity, and makes the cover and the bottom shell sealed and connected;

In the utility model, the durability of the flow meter is enhanced, and it has the performance of high temperature resistance and internal high pressure resistance, which not only enhances the service life of the flow meter, but also expands the application scope of the flow meter, while also improving the accuracy of water metering, and improving applicability and use effect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the main structure of the utility model;

FIG2 is a schematic diagram of the disassembled structure of the cover of the present invention;

FIG3 is a schematic diagram of the impeller split structure of the utility model;

FIG. 4 is a schematic diagram of the disassembled structure of the Hall sensor of the present invention.

Reference numerals:

1. Bottom shell; 2. Cavity; 3. Water inlet; 4. Water outlet; 5. Nozzle; 6. Screws; 7. Surface cover; 8. Mounting slot; 9. Hall sensor; 10. Sealing slot; 11. Sealing ring; 12. Opening; 13. Rotating shaft; 14. Impeller; 15. Fixing slot; 16. Magnet.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

Example

Please refer to Figures 1 to 4, a flow meter includes a bottom shell 1 and a cover 7, the cover 7 is arranged on the top of the bottom shell 1, a cavity 2 is opened on the top of the bottom shell 1, a water inlet 3 and a water outlet 4 are respectively opened on one side of the bottom shell 1, the water inlet 3 and the water outlet 4 are both connected to the cavity 2, and a nozzle 5 is arranged on the inner wall of the water inlet 3;

A metering mechanism, which is arranged in the cavity 2 and is used to measure the amount of water used;

The connecting mechanism is arranged on the bottom shell 1 and is used for disassembling and installing the surface cover 7 .

1 to 4 , the bottom shell 1 and the cover 7 are both made of metal, and the sealing ring 11 is made of fluororubber.

2 and 3 , the impeller 14 is made of polyvinylidene fluoride.

The above technical scheme can achieve the purpose that the amount of water passing through the flow meter is proportional to the number of impeller rotations and the number of Hall sensor output pulses through the metering mechanism, thereby realizing the water metering function, achieving the metering effect, and enhancing the applicability. The surface cover is conveniently installed and disassembled through the connecting mechanism, thereby improving the convenience. At the same time, it is also beneficial to improve the sealing inside the cavity, and the surface cover and the bottom shell are sealed and connected. Since the bottom shell 1 and the surface cover 7 are both made of metal, the excellent high temperature and high pressure resistance of the bottom shell 1 and the surface cover 7 will be enhanced. At the same time, the rotating shaft 13 is made of SUS316, which is beneficial to improving the flow accuracy and durability. The impeller 14 made of polyvinylidene fluoride also has the function of high temperature and high pressure resistance, and has strong adaptability. The sealing ring 11 made of fluororubber also has the function of high temperature and high pressure resistance. Therefore, the flow meter has strong durability during use, and has the performance of high temperature and internal high pressure resistance, which not only enhances the service life of the flow meter, but also expands the application range of the flow meter, and also improves the accuracy of water metering, and improves applicability and use effect.

Please refer to Figures 1 to 3. The metering mechanism includes an opening 12 formed on the bottom side of the inner wall of the cavity 2. A rotating shaft 13 is rotatably connected to the inside of the opening 12. An impeller 14 is fixedly installed on the outer wall of the rotating shaft 13. Two fixed grooves 15 are formed on the top of the impeller 14. Magnets 16 are provided inside the two fixed grooves 15.

Referring to FIG. 4 , a mounting groove 8 is formed on the top of the cover 7 , and a Hall sensor 9 is disposed inside the mounting groove 8 .

The above technical solution can achieve the goal that high-temperature and high-pressure water flows into the water inlet 3, and ejects high-speed water flows into the cavity 2 through the nozzle 5 on the inner wall of the water inlet 3, and the high-speed water flows drive the impeller 14 in the cavity 2. The impeller 14 rotates under the rotation of the rotating shaft 13 set in the opening 12. At the same time, different apertures can be selected on the nozzle 5, which is conducive to adapting to different flow rate requirements. The rotation of the impeller 14 will drive the two magnets 16 with opposite polarities installed in the fixed groove 15 to rotate. The two magnets 16 alternately pass through the Hall sensor 9, and then the Hall sensor 9 can be triggered by the change of magnetic poles, and a pulse signal is output, so that the amount of water passing through the flow meter is proportional to the number of rotations of the impeller 14 and the number of pulses output by the Hall sensor 9, thereby realizing the water volume metering function, achieving the metering effect, and enhancing the applicability of the technical effect.

The present application can be used in the field of flow meters, and can also be used in other fields applicable to the present application.

The Hall sensor 9 is of model EW732, and its structure and mechanism will not be described in detail here;

Example

Referring to FIG. 2-FIG 4, an improvement based on the first embodiment: a high temperature and high pressure flow meter for a coffee machine, which is applied to the field of flow meters;

The connecting mechanism includes three screws 6 , and the bottom shell 1 and the surface cover 7 are connected and fixed by the three screws 6 . A sealing groove 10 is provided on the top of the bottom shell 1 , and a sealing ring 11 is provided on the inner wall of the sealing groove 10 to fit the bottom side of the surface cover 7 .

The above technical solution can achieve the goal of removing the face cover 7 by removing the screws 6, which is beneficial to regular inspection of the impeller 14 to prevent the rotation of the impeller 14 from affecting the accuracy of water metering. After the inspection is completed, the face cover 7 is fixed to the bottom shell 1 by the screws 6, thereby achieving the effect of convenient installation and disassembly of the face cover 7 and improving convenience. At the same time, the bottom side of the face cover 7 will fit tightly with the sealing ring 11 in the sealing groove 10, which is beneficial to improving the sealing inside the cavity 2, and makes the face cover 7 and the bottom shell 1 sealed and connected, thereby improving the use effect and technical effect.

The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflict, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims (6)

1. A high temperature and high pressure flow meter for a coffee machine, comprising a bottom shell (1) and a cover (7), wherein the cover (7) is arranged on the top of the bottom shell (1), and characterized in that a cavity (2) is provided on the top of the bottom shell (1), and a water inlet (3) and a water outlet (4) are respectively provided on one side of the bottom shell (1), wherein the water inlet (3) and the water outlet (4) are both connected to the cavity (2), and a nozzle (5) is provided on the inner wall of the water inlet (3); A metering mechanism, the metering mechanism being arranged in the cavity (2) and used for measuring the amount of water used; A connecting mechanism is arranged on the bottom shell (1) and is used for disassembling and installing the surface cover (7). 2. A high temperature and high pressure flow meter for a coffee machine according to claim 1, characterized in that the metering mechanism comprises an opening (12) formed on the bottom side of the inner wall of the cavity (2), a rotating shaft (13) is rotatably connected to the inside of the opening (12), an impeller (14) is fixedly mounted on the outer wall of the rotating shaft (13), two fixing grooves (15) are formed on the top of the impeller (14), and magnets (16) are arranged inside the two fixing grooves (15). 3. A high temperature and high pressure flow meter for a coffee machine according to claim 2, characterized in that a mounting groove (8) is provided on the top of the surface cover (7), and a Hall sensor (9) is provided inside the mounting groove (8). 4. A high temperature and high pressure flow meter for a coffee machine according to claim 1, characterized in that the connecting mechanism comprises three screws (6), the bottom shell (1) and the surface cover (7) are connected and fixed by the three screws (6), a sealing groove (10) is provided on the top of the bottom shell (1), and a sealing ring (11) is provided on the inner wall of the sealing groove (10) to fit the bottom side of the surface cover (7). 5. A high temperature and high pressure flow meter for a coffee machine according to claim 4, characterized in that the bottom shell (1) and the surface cover (7) are both made of metal, and the sealing ring (11) is made of fluororubber. 6. A high temperature and high pressure resistant flow meter for a coffee machine according to claim 2, characterized in that the impeller (14) is made of polyvinylidene fluoride.