Flow control valve

Abstract

The utility model discloses a flow control valve, which comprises a valve body, wherein the valve body is provided with an inlet, an outlet and a transparent tube; the control module comprises a control unit, a sensor assembly, a driving source and a valve element, and the driving source is matched with the valve element; the sensor assembly is located on the outer side of the transparent pipe and detects the flow rate of the bubbles, when the control unit monitors that the flow rate of the bubbles exceeds a threshold value, the control unit controls the driving source to act, and the valve element reduces the air inflow of the inlet; when the control unit monitors that the flow rate of the bubbles is lower than a threshold value, the control unit controls the driving source to act, and the valve element increases the air inflow of the inlet; the flowing accuracy of carbon dioxide is ensured by detecting the flow speed of bubbles, the effect of stably controlling the flow is achieved, compared with an air pressure detection mode, the detection is more accurate, and the flow can be automatically calibrated to the set flow no matter how the input air pressure changes.

Description

Technical Field

[0001] The utility model relates to the field of aquariums, in particular to a flow control valve. Background Art

[0002] In the field of aquariums, the vegetation in the fish tank needs carbon dioxide as a raw material for photosynthesis. Those skilled in the art inject carbon dioxide gas into the fish tank to dissolve the carbon dioxide in water.

[0003] Traditional carbon dioxide is adjusted manually, but if the input gas pressure is unstable (for example, due to acid-base reaction), the gas flow rate will change. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is how to improve the control of the flow rate of carbon dioxide. To this end, the present invention provides a flow control valve, which includes:

[0005] A valve body, wherein the valve body is provided with an inlet, an outlet and a transparent tube;

[0006] A control module includes a control unit, a sensor assembly, a driving source, and a valve core, wherein the driving source cooperates with the valve core;

[0007] The sensor assembly is located outside the transparent tube, and the sensor assembly detects the flow rate of the bubbles. When the control unit monitors that the flow rate of the bubbles exceeds a threshold value, the control unit controls the drive source to operate, and the valve core reduces the air intake of the inlet; when the control unit monitors that the flow rate of the bubbles is lower than the threshold value, the control unit controls the drive source to operate, and the valve core increases the air intake of the inlet.

[0008] By detecting the flow rate of bubbles, the accuracy of carbon dioxide flow is ensured and the effect of stable flow control is achieved. Compared with the air pressure detection method, this detection method is more accurate. No matter how the input air pressure changes, it will automatically calibrate to the set flow rate.

[0009] Wherein, the control module comprises a containing cavity, and the valve body is contained in the containing cavity.

[0010] The arrangement of the accommodating cavity enables the control module to be directly connected and fixed to the valve body, thereby improving the connection effect.

[0011] The sensor component includes a notch, and the transparent tube extends into the notch.

[0012] The setting of the notch enables the sensor to perform detection accurately. At the same time, the exposed part of the transparent tube is convenient for operators to observe, achieving a dual-purpose effect.

[0013] It also includes a valve seat, which is connected to the inlet. The valve core moves to the connection between the valve seat and the inlet; or the valve core moves to the valve seat; or the valve core moves to the inlet.

[0014] The valve seat is used to connect the valve body and the carbon dioxide cylinder to achieve a connecting effect. The valve core can control the air intake volume of the inlet according to different situations to achieve a stable control effect.

[0015] The driving source is a motor or a coil.

[0016] The driving source can be a motor, and the setting of the motor directly cooperates with the valve core. Even if a power outage occurs, it will not affect the position of the valve core; the setting of the coil can also realize the valve core driving to form a flow control effect.

[0017] Wherein, the sensor component includes a photoelectric sensor or an infrared sensor.

[0018] The sensor can be set according to actual needs. The light of the sensor will be refracted when passing through the bubble. At this time, the receiving end cannot receive the signal and a measurement can be performed to ensure the accuracy of the measurement. The output rate is adjusted through the control unit to ensure that the carbon dioxide forms a stable output throughout the cycle.

[0019] Wherein, the control module also includes a circuit board, and the control unit is arranged on the circuit board.

[0020] The setting of the circuit board forms a module connection effect, making installation more convenient.

[0021] Among them, the control unit can be controlled via Bluetooth or APP or local area network or Internet of Things.

[0022] Bluetooth, APP, local area network and Internet of Things can all play a control role, and operators can achieve rapid control effects in different ways. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the overall structure of a flow control valve provided by the utility model;

[0025] Figure 2 A schematic diagram of the structure of a flow control valve provided by the utility model;

[0026] Figure 3 A cross-sectional view of a flow control valve provided by the utility model;

[0027] Figure 4 The utility model is a partial structural schematic diagram of a flow control valve provided by the utility model. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. Example

[0032] This embodiment provides a flow control valve, as shown in the attached Figure 1-4 As shown, including:

[0033] The valve body 11 is provided with an inlet 111, an outlet 112 and a transparent tube 113. The carbon dioxide gas enters the valve body 11 from the inlet 111, passes through the transparent tube 113, and finally exits from the outlet 112, and is then injected into the fish tank. It should be noted here that the inside of the valve body 11 needs to be filled with liquid. When bubbles enter the valve body 11, the bubbles will float upward due to the buoyancy, that is, the inlet 111 is located at the bottom and the outlet 112 is located at the top. It should also be noted here that during use, the valve body 11 needs to be filled with liquid, otherwise bubbles cannot be generated. This is common knowledge, so it is not described in detail in this embodiment.

[0034] The control module 12 includes a control unit, a sensor assembly 13, a driving source 14, and a valve core 15. The driving source 14 cooperates with the valve core 15. When the driving source 14 works, the valve core 15 will also move. The valve core 15 is used to control the air intake of the inlet 111. It can be completely closed, in which case the air intake is zero, or it can be opened to the maximum.

[0035] The sensor assembly 13 is located outside the transparent tube 113. The sensor assembly 13 detects the flow rate of the bubble. The detection here can be light detection. Under normal conditions, the transparent tube 113 is filled with liquid, the input end excites the light beam, and the output end receives the light beam. The refraction of light needs to be considered here. The technicians in this field can control the position between the input end and the output end to achieve the effect of accurate detection. When the bubble passes through the light beam, due to the action of the bubble, refraction occurs, and the output end cannot receive the light beam, so a signal is generated. Since the bubbles move from bottom to top, the flow rate of the gas in the entire gas supply system can be known by measuring the flow rate of the bubble, so that the flow rate of the gas in the gas supply system is kept in a stable state. When the control unit detects that the flow rate of the bubble exceeds the threshold, the control unit controls the driving source 14 to act, and the valve core 15 reduces the intake of the inlet 111. When the control unit detects that the flow rate of the bubble is lower than the threshold, the control unit controls the driving source 14 to act, and the valve core 15 increases the intake of the inlet 111. The threshold can be a value or an interval, and the technicians in this field can adjust it according to actual needs. By detecting the flow rate of bubbles, the accuracy of carbon dioxide flow is ensured and the effect of stable flow control is achieved. Compared with the air pressure detection method, this detection method is more accurate. No matter how the input air pressure changes, it will automatically calibrate to the set flow rate.

[0036] Specifically, the control module 12 includes a housing chamber, and the valve body 11 is accommodated in the housing chamber. The arrangement of the housing chamber allows the control module 12 to be directly connected and fixed to the valve body 11, thereby improving the connection effect. It can also be considered that the control module 12 is sleeved on the valve body 11. Here, the control module 12 includes a shell, and the shell is provided with a housing chamber, and the remaining parts of the control module 12 are all accommodated in the housing chamber. In addition, the control module 12 may also have only the sensor assembly 13 that cooperates with the valve body 11, and the rest of the control module 12 is located outside the valve body 11.

[0037] Specifically, as attached Figure 4 As shown, the sensor assembly 13 includes a notch 131, and the transparent tube 113 extends into the notch 131. Here, the transparent tube 113 can partially extend into the notch 131, or the transparent tube 113 can extend into the notch 131 as a whole. The setting of the notch 131 allows the sensor to accurately detect, and at the same time, the exposed part of the transparent tube 113 is convenient for the operator to observe, achieving a dual-purpose effect. In this embodiment, the shell is provided with a through hole, and the through hole cooperates with the exposed part of the transparent tube 113. The notch 131 can be a U-shaped notch 131, forming a state similar to clamping.

[0038] Specifically, as attached Figure 3 As shown, it also includes a valve seat 16, which is connected to the inlet 111, one end of the valve seat 16 is connected to the carbon dioxide cylinder, and the other end of the valve seat 16 is connected to the inlet 111, so as to achieve an overall gas supply effect. The air pressure between the valve seat 16 and the carbon dioxide cylinder can also be adjusted by a pressure reducing valve. The valve core 15 can move to the connection between the valve seat 16 and the inlet 111, so as to control the air intake of the inlet 111. The valve core 15 can also move to the valve seat 16, so that the airflow at the outlet 112 position of the valve seat 16 is controlled, thereby realizing the air intake of the inlet 111 in disguised form. The valve core 15 can also move to the inlet 111, and realize the air intake of the inlet 111 by closing or opening the inlet 111. The valve seat 16 is used to connect the valve body 11 and the carbon dioxide cylinder to achieve a connection effect. The valve core 15 can control the air intake of the inlet 111 according to different situations to achieve a stable control effect.

[0039] Specifically, the driving source 14 is a motor or a coil. The driving source 14 can be a motor, which is directly matched with the valve core 15, and even if the power is off, it will not affect the position of the valve core 15; the setting of the coil can also realize the driving of the valve core 15 to form a flow control effect.

[0040] Specifically, the sensor assembly 13 includes a photoelectric sensor or an infrared sensor. The sensor can be set according to actual needs. The light of the sensor will be refracted when passing through the bubble. At this time, the receiving end cannot receive the signal, and a measurement can be performed, thereby ensuring the accuracy of the measurement. The output rate is adjusted by the control unit to ensure that the carbon dioxide forms a stable output during the entire cycle. Here, the sensor assembly 13 is located in the accommodating cavity.

[0041] Specifically, as attached Figure 3-4 As shown, the control module 12 also includes a circuit board 17, and the control unit is arranged on the circuit board 17. The arrangement of the circuit board 17 forms a module connection effect, making installation more convenient. Here, the circuit board 17 is located in the accommodating cavity. The external power supply of the control module 12 can be DC12V or AC220V.

[0042] Specifically, the control unit can be controlled via Bluetooth, APP, local area network, Internet of Things, etc. Bluetooth, APP, local area network, Internet of Things can all play a control effect, and operators can achieve fast control effects in different ways.

[0043] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A flow control valve, characterized in that: include: A valve body, wherein the valve body is provided with an inlet, an outlet and a transparent tube; A control module includes a control unit, a sensor assembly, a driving source, and a valve core, wherein the driving source cooperates with the valve core; The sensor assembly is located outside the transparent tube, and the sensor assembly detects the flow rate of the bubbles. When the control unit monitors that the flow rate of the bubbles exceeds a threshold value, the control unit controls the drive source to operate, and the valve core reduces the air intake of the inlet; when the control unit monitors that the flow rate of the bubbles is lower than the threshold value, the control unit controls the drive source to operate, and the valve core increases the air intake of the inlet.

2. The flow control valve according to claim 1, characterized in that: The control module comprises a containing cavity, and the valve body is contained in the containing cavity.

3. The flow control valve according to claim 1, characterized in that: The sensor assembly includes a notch into which a transparent tube extends.

4. The flow control valve according to claim 1, characterized in that: It also includes a valve seat, which is connected to the inlet. The valve core moves to the connection between the valve seat and the inlet; or the valve core moves to the valve seat; or the valve core moves to the inlet.

5. The flow control valve according to claim 1, characterized in that: The driving source is a motor or a coil.

6. The flow control valve according to claim 1, characterized in that: The sensor assembly includes a photoelectric sensor or an infrared sensor.

7. The flow control valve according to claim 1, characterized in that: The control module also includes a circuit board, and the control unit is arranged on the circuit board.

8. The flow control valve according to claim 5, characterized in that: The control unit can be controlled via Bluetooth or APP or LAN or IoT.

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