Intelligent gas safety valve with adjustable flow

Abstract

The application relates to an adjustable-flow gas intelligent safety valve, and belongs to the technical field of gas valves.The adjustable-flow gas intelligent safety valve comprises a valve body, which is installed on a gas pipeline and is provided with an output cavity body in communication with the gas pipeline; a rubber cover, which is elastically arranged and has a groove with an extension structure and is in sealing connection with the valve body; when the rubber cover is stretched into the valve body, the volume of the output cavity body is adjusted or the gas supply is cut off; a driving assembly, which is arranged on the valve body and is used for driving the movement of the rubber cover so that the rubber cover is stretched or retracted; a pressure sensor, which is arranged on the two sides of the output cavity body and is sealingly installed on the valve body and is used for monitoring the pressure at the front and back ends of the valve body; and a controller, which is electrically connected with the pressure sensor and the driving assembly and is used for controlling the action of the driving assembly according to the pressure at the front and back ends of the valve body.The application has the beneficial effects that one safety valve can be adapted to multiple gas equipment commonly used in a resident's home, and safe gas use monitoring is realized.

Description

Technical Field

[0001] This application relates to the technical field of gas valves, and in particular to an adjustable flow intelligent safety valve for gas. Background Technology

[0002] With the widespread use of natural gas in households, the variety of gas appliances in homes has become increasingly diverse, including common gas stoves, gas water heaters, and gas wall-hung boilers. Because natural gas is inherently dangerous, numerous gas safety protection devices have emerged, especially those directly installed on gas pipelines. These devices utilize the physical properties of natural gas for intelligent identification and control, such as self-closing valves with overcurrent, overpressure, and low-flow-rate shut-off functions, as well as intelligent shut-off valves.

[0003] Currently, common gas safety protection devices in the industry are typically designed for specific gas appliances to detect flow rate specifically and meet functional requirements at the lowest cost. They often employ a fixed structural design to accommodate a fixed flow rate and relatively constant pressure difference. For example, orifice plate flowmeters with a rated flow rate of 0.6 m³ / h for household gas stoves are small, low-cost, and widely used. If a household has multiple gas appliances, these safety protection devices often need to be installed at the upstream end of each appliance to achieve comprehensive safety monitoring, increasing the user's costs. This necessitates users selecting appropriate safety valves based on the type and specifications of the gas appliances, and replacing the safety valves when changing gas appliances. Inappropriate selection may result in excessively high or low gas flow rates, failing to achieve the purpose of gas safety monitoring or affecting the normal operation of the gas appliances. Utility Model Content

[0004] To enable a single safety valve to be compatible with multiple commonly used gas appliances in a residential home and to achieve safe gas usage monitoring, this application provides an adjustable flow intelligent gas safety valve, employing the following technical solution: An adjustable flow intelligent safety valve for gas, comprising: The valve body is installed on the gas pipeline and has an output cavity that communicates with the gas pipeline; The rubber cap is elastically designed with grooves that allow for telescopic movement and is sealed to the valve body. When the rubber cap extends into the valve body, it adjusts the volume of the output chamber or cuts off the gas supply. A drive assembly, disposed on the valve body, is used to drive the movement of the rubber cover so that the rubber cover expands or retracts; Pressure sensors are located on both sides of the output cavity and are sealed on the valve body to monitor the pressure at the front and rear ends of the valve body. The controller, electrically connected to the pressure sensor and the drive assembly, is used to control the operation of the drive assembly based on the pressure at the front and rear ends of the valve body.

[0005] By adopting the above technical solution, according to Bernoulli's equation and the law of fluid continuity, when the pipeline through which the fluid passes contracts, the flow velocity of the fluid increases at the point of contraction, resulting in a decrease in static pressure. This creates a pressure difference before and after the pipeline contraction, which is proportional to the flow rate. The flow rate can be indirectly calculated by measuring the pressure difference.

[0006] Different gas appliances require different flow rates during operation, resulting in varying pressure differentials. By monitoring the pressure at both ends of the valve body, the flow rate can be monitored and adjusted. When the pressure differential is too small, it hinders the safety valve's algorithm analysis and processing, making it difficult to detect abnormal operating conditions of the gas appliances. In this case, the valve's flow rate needs to be reduced to increase the pressure differential. Therefore, the controller can control the drive component to apply pressure to the rubber cap. The rubber cap reduces the volume of the valve body's output chamber, decreasing the flow rate and increasing the pressure differential across the valve body. Conversely, when the pressure differential is too large, the valve's flow rate needs to be increased. The drive component causes the rubber cap to retract and reset, increasing the volume of the output chamber, further increasing the flow rate, and decreasing the pressure differential across the valve body. This allows the safety valve to automatically adjust the appropriate flow rate based on the gas appliances connected downstream; it can adapt to situations such as temporarily disabling a gas appliance or replacing it with a different type. Under the current adjusted flow rate, the pressure difference is used to monitor the flow rate changes according to Bernoulli's equation, thereby analyzing the usage of gas appliances and conducting gas safety monitoring. This includes monitoring functions such as maintaining a constant low flow rate for a long time (generally due to forgetting to turn off the gas or a minor leak), suddenly exceeding the predetermined high flow rate (due to pipe detachment or cracks), as well as timed shutdown functions and gas supply overpressure or underpressure alarm functions.

[0007] Optionally, the intelligent gas safety valve further includes: A metal valve cover is installed on the valve body by screws to press and seal the rubber cover onto the valve body. A central hole is also provided in the middle of the metal valve cover. A convex cap is installed between the metal valve cover and the rubber cover, and is embedded in the extrusion groove opened in the middle of the rubber cover. The convex cap is slidably connected to the metal valve cover through the central hole. The metal valve cover, the convex cap, and the rubber cover constitute the valve cover component, which is used to seal the output cavity. The convex cap can be moved by force to change the volume of the output cavity or cut off the gas supply.

[0008] By adopting the above technical solution, the metal valve cover can provide safety protection for the rubber cover and prevent damage to the rubber cover by sharp objects. When the drive assembly is disassembled on site for maintenance or replacement of parts, the metal valve cover can be used to fix the rubber cover without disassembling the valve body, which can prevent external leakage of gas in the pipeline.

[0009] Optionally, the drive assembly is mounted on the metal valve cover and is used to apply a linear driving force to the convex cap.

[0010] Optionally, the driving component includes: The gearbox body is mounted on the metal valve cover; A stepper motor is mounted on the surface of the gearbox and is electrically connected to the controller; The main gear is rotatably connected inside the gearbox and is coaxially and fixedly connected to the output shaft of the stepper motor; The adjusting gear meshes with the main gear and is rotatably connected inside the gearbox; The gear shaft is coaxially threaded to the adjusting gear and slidably connected to the gearbox body, and passes through the central hole and is detachably connected to the convex cap.

[0011] By adopting the above technical solution, initially, the gear shaft can be detachably connected to the convex cap; after the controller controls the stepper motor to start, the stepper motor drives the main gear to rotate, the main gear drives the adjusting gear to rotate, and the gear shaft pushes the convex cap to move under the action of the thread, and the convex cap drives the rubber cover to extend into the valve body; when it is necessary to increase the output cavity, the gear shaft is driven to reset and retract, so as to drive the rubber cover to reset.

[0012] Optionally, the intelligent gas safety valve further includes: A housing cover is sealed and installed on the valve body to cover the drive assembly, and has an operating compartment; the controller is installed inside the housing cover. A battery, installed in the operating compartment, is used to power the controller and the drive assembly.

[0013] Optionally, the intelligent gas safety valve further includes: A manual operating component, installed inside the housing, is used to manually drive the rotation of the adjusting gear; A sliding cover, which is slidably connected to the housing cover, is used to open and close the operating compartment.

[0014] By adopting the above technical solution, a mechanical manual operation mode is achieved, preventing the valve from being opened or closed manually when the battery is dead; when not in use, the operating compartment can be covered by a sliding cover to hide it, preventing accidental operation and facilitating battery replacement.

[0015] Optionally, the manual operation component includes: A control handle is slidably and rotatably connected to the housing cover, with one end of the control handle placed inside the operating chamber; The rotating shaft has a rotating slot and is rotatably connected to the metal valve cover. The other end of the control handle can be inserted into the rotating slot. A rotating gear is coaxially and fixedly connected to the rotating shaft; An auxiliary gear is rotatably connected to the metal valve cover; the rotating gear meshes with the auxiliary gear, and the auxiliary gear meshes with the adjusting gear; A reset spring is sleeved on the control handle and is used to reset the control handle after it is rotated.

[0016] By adopting the above technical solution, when manual mechanical operation of the valve is required, the sliding cover is opened to expose the control handle, the control handle is pressed down so that the end of the control handle is inserted into the rotating slot, and then the control handle is rotated. The control handle drives the rotating shaft to rotate, so that the rotating gear drives the adjusting gear to rotate through the auxiliary gear, thereby realizing the linear movement of the gear shaft, and thus realizing the mechanical opening or closing of the valve.

[0017] Optionally, the intelligent gas safety valve further includes: The display control panel is separate from the valve body and installed in a convenient location for operation; the display control panel communicates wirelessly with the controller.

[0018] By adopting the above technical solution, since safety valves are generally located inside cabinets or in small spaces, making them inconvenient to operate, an external display control panel can be placed in an easily accessible location in the kitchen for convenient use. It can display gas equipment detection information, temperature and humidity information, and gas pressure information, etc. It can also control the controller inside the safety valve, such as timed control and remote control.

[0019] In summary, this application has at least the following beneficial effects: 1. The purpose of setting up the rubber cover, drive assembly, pressure sensor and controller is that, according to Bernoulli's equation and the law of fluid continuity, when the pipeline through which the fluid passes contracts, the flow velocity of the flow stream increases at the point of contraction, resulting in a decrease in static pressure, thereby forming a pressure difference before and after the pipeline contraction. This pressure difference is proportional to the flow rate, and the flow rate can be indirectly calculated by measuring the pressure difference. Different gas appliances require different flow rates during operation, resulting in varying pressure differentials. Flow rate monitoring is achieved by monitoring the pressure at both ends of the valve body. When the pressure differential is too small, it hinders the safety valve's algorithm analysis and processing, making it difficult to detect abnormal gas appliance usage. In this case, the valve's flow rate needs to be reduced to increase the pressure differential. Therefore, the controller can control the drive component to apply pressure to the rubber cap, reducing the volume of the valve body's output chamber. When the pressure differential is too large, the valve's flow rate needs to be increased. The drive component causes the rubber cap to retract and reset, thereby increasing the volume of the output chamber. This allows the safety valve to automatically adjust the appropriate flow rate based on the gas appliance connected downstream. It can adapt to situations such as temporarily shutting down a gas appliance or replacing it with a different type. Under the current adjusted flow rate, the pressure difference is used to monitor flow rate changes according to Bernoulli's equation, thereby analyzing the gas appliance's usage and performing gas safety monitoring. This includes functions such as detecting prolonged periods of constant low flow (generally due to forgetting to turn off the gas or minor leaks) and sudden increases in flow rate beyond the predetermined limit (pipeline detachment or cracks).

[0020] 2. The metal valve cover can provide safety protection for the rubber cover and prevent damage to the rubber cover by sharp objects. When the drive assembly is disassembled on site for maintenance or replacement of parts, the metal valve cover can be used to fix the rubber cover without disassembling the valve body, which can prevent external leakage of gas in the pipeline.

[0021] 3. The purpose of setting up the sliding cover and manual operation components is to realize the mechanical manual operation mode, so as to prevent the valve from being opened / closed manually when the battery is dead; when not in use, the operation compartment can be covered by the sliding cover to hide it, prevent accidental operation and facilitate battery replacement. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a cross-sectional schematic diagram of the relevant structure after the cover is hidden in this application; Figure 3 This is a cross-sectional schematic diagram of the relevant structures after concealing the cover and valve body in this application; Figure 4 This is a schematic diagram of the overall structure of this application after the sliding cover is hidden; Figure 5 This is an exploded view of the manually operated parts, drive components, and valve cover assembly; Figure 6 This is a schematic diagram of the valve body structure; Figure 7 This is a control structure block diagram of an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 100, valve cover; 101, slot; 200, housing cover; 210, operating chamber; 211, battery; 220, sliding cover; 230, controller; 300, valve cover assembly; 310, rubber cover; 301, extrusion groove; 320, metal valve cover; 321, center hole; 330, convex cap; 400, drive assembly; 401, stepper motor; 402, gearbox; 403, main gear; 40 4. Adjusting gear; 405. Gear shaft; 410. Manual operation component; 411. Control handle; 412. Rotating shaft; 413. Rotating slot; 414. Rotating gear; 415. Auxiliary gear; 416. Return spring; 417. Connecting plate; 500. Pressure sensor; 600. Valve body; 601. Output chamber; 701. Display control panel; 702. Buttons; 703. Indicator light; 704. Buzzer. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the appendices of the embodiments of this utility model will be described below. Figure 1 -Appendix Figure 7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] This application discloses an adjustable flow rate intelligent safety valve for gas. (Refer to...) Figure 1 and Figure 2 The intelligent gas safety valve includes a valve body 600, a housing cover 200, a valve cover component 300, and a drive assembly 400.

[0026] The valve body 600 is installed on the gas pipeline and has an output cavity 601 that communicates with the gas pipeline; the valve body 600 has a slot 101. The valve cover component 300 is used to seal the output cavity 601, and by changing the volume of the output cavity 601, the flow rate before and after the valve body 600 or the gas supply can be cut off.

[0027] Reference Figure 2 and Figure 3 The valve cover component 300 consists of a metal valve cover 320, a rubber cover 310, and a convex cap 330.

[0028] The rubber cover 310 is elastically designed. In this application, the rubber cover 310 can expand and contract to 25mm. The rubber cover 310 is snapped into the slot 101. The rubber cover 310 has a compression groove 301 in the middle to form a groove with a telescopic structure.

[0029] The metal valve cover 320 is installed on the valve body 600 by screws. After the metal valve cover 320 is installed on the valve body 600, the rubber cover 310 is pressed and sealed on the valve body 600. A central hole 321 is also provided in the middle of the metal valve cover 320.

[0030] The convex cap 330 is embedded in the extrusion groove 301 and is connected to the metal valve cover 320 in a sealed sliding manner through the central hole 321.

[0031] The drive assembly 400 is mounted on the metal valve cover 320 and applies a linear driving force to the convex cap 330 through the central hole 321 to move the rubber cover 310.

[0032] Reference Figure 1 and Figure 3 The cover 200 is installed on the valve body 600 by screws, and the cover 200 and the valve body 600 are sealed by a sealing ring; the cover 200 is used to cover the drive assembly 400 and to install and fix the control circuit board.

[0033] The drive assembly 400 includes a stepper motor 401, a gearbox 402, a main gear 403, an adjusting gear 404, and a gear shaft 405.

[0034] The gearbox 402 is mounted on the metal valve cover 320, and the stepper motor 401 is mounted on the surface of the gearbox 402. The main gear 403 is rotatably connected inside the gearbox 402 and is coaxially fixedly connected to the output shaft of the stepper motor 401. The adjusting gear 404 meshes with the main gear 403 and is rotatably connected inside the gearbox 402. The gear shaft 405 is coaxially threadedly connected to the adjusting gear 404 and slidably connected to the gearbox 402, and is also coaxially set with the center hole 321. The gear shaft 405 passes through the center hole 321 and is detachably connected to the convex cap 330. The detachable connection method can be a conventional connection method such as overlapping, snap-fit, or clamping.

[0035] It should be noted that in other embodiments, the drive component 400 may also be a lead screw or other linear drive structure, which is used to detachably connect with the convex cap 330 to drive the movement of the convex cap 330.

[0036] When installing the drive assembly 400, the convex cap 330 is embedded in the extrusion groove 301, and then the rubber cover 310 is installed on the valve body 600; then the metal valve cover 320 is installed, and finally the gearbox 402 is installed, thereby realizing the installation of the drive assembly 400 and the valve cover component 300.

[0037] Furthermore, referring to Figure 1 and Figure 4 An operating compartment 210 is provided on the housing cover 200, and a battery 211 is installed in the operating compartment 210 to supply power to other electrical components such as the stepper motor 401. A sliding cover 220 is also sealed and slidably connected to the housing cover 200 for opening and closing the operating compartment 210.

[0038] Furthermore, the gas intelligent safety valve also includes a manual operation component 410 for manually driving the rotation of the adjusting gear 404; when manually driven, the stepper motor 401 is in a de-energized state, thereby facilitating the rotation of the adjusting gear 404.

[0039] Reference Figure 5 The manual operation component 410 includes a control handle 411, a rotating shaft 412, a rotating gear 414, an auxiliary gear 415, and a return spring 416.

[0040] The control handle 411 is slidably and rotatably connected to the cover 200, with one end of the control handle 411 positioned within the operating chamber 210. A rotating shaft 412 has a rotating slot 413 and is rotatably connected to the metal valve cover 320; the other end of the control handle 411 can be inserted into the rotating slot 413. A rotating gear 414 is coaxially fixedly connected to the rotating shaft 412. A connecting plate 417 is mounted on the metal valve cover 320, and an auxiliary gear 415 is rotatably connected to the connecting plate 417. The rotating gear 414 meshes with the auxiliary gear 415, and the auxiliary gear 415 meshes with the adjusting gear 404. A return spring 416 is sleeved on the control handle 411. Both the cover 200 and the connecting plate 417 have spring limiting grooves. One end of the return spring 416 abuts against the bottom of the spring limiting groove on the cover 200, and the other end abuts against the bottom of the spring limiting groove on the connecting plate 417.

[0041] Furthermore, referring to Figure 6 and Figure 7 The intelligent gas safety valve also includes a controller 230, a pressure sensor 500, and a display control panel 701.

[0042] The controller 230 is installed inside the housing 200. The controller 230 is a microprocessor MCU, which has functions such as pressure detection, motor control, LED display control, battery power detection, button operation detection, alarm sound control, and wireless communication. It also monitors safe gas usage through data analysis and processing.

[0043] Battery 211 powers the controller 230 and other circuits. The display control panel 701 is installed in an easily accessible location in the kitchen and is wirelessly connected to the controller 230; it displays gas equipment detection information, temperature and humidity information, gas pressure information, and issues audible alarms; it can also control the controller 230 inside the safety valve, such as timed control and remote control.

[0044] Pressure sensors 500 are located on both sides of the output chamber 601 and are sealed on the valve body 600 to monitor the pressure at the front and rear ends of the valve body 600. The pressure sensors 500 are electrically connected to the controller 230. The controller 230 controls the stepper motor 401 based on the pressure at the front and rear ends of the valve body 600, thereby adjusting the flow rate through the valve body 600 or cutting off the gas supply.

[0045] Furthermore, referring to Figure 1 , Figure 4 and Figure 7 The gas intelligent safety valve also includes a buzzer 704, an indicator light 703, and a button 702.

[0046] A buzzer 704 is installed inside the housing 200 and electrically connected to the controller 230. The housing 200 has a sound-emitting hole (not shown in the figure) to facilitate the sound transmission of the buzzer 704. Multiple indicator lights 703 are provided to indicate different states of the safety valve and are electrically connected to the controller 230. LED light is guided to the outer surface of the housing 200 via a light guide column for easy observation. Buttons 702 are installed inside the operating compartment 210 and include an open valve button and a close valve button. Buttons 702 are electrically connected to the controller 230 and are used to send manual signals to the controller 230, which are either open or closed valve signals.

[0047] The implementation principle of this embodiment is as follows: This intelligent gas safety valve connects to the gas pipeline via the valve body 600 and is typically installed at the rear end of the gas meter and the front end of all gas equipment. The rubber cover 310 within the valve body 600's slot 101 is tightened by screws in the metal valve cover 320 to form a sealed structure. The central hole 321 in the metal valve cover 320 provides an operating channel for the drive assembly 400. The housing cover 200 is sealed to the valve body 600 via a sealing ring and covers the drive assembly 400, forming overall protection. The convex cap 330 is embedded in the compression groove 301 of the rubber cover 310. The stepper motor 401 drives the main gear 403 to rotate. After meshing with the adjusting gear 404, it drives the gear shaft 405 to move axially along the central hole 321, thereby pushing the convex cap 330 to cause the rubber cover 310 to stretch and deform. By changing the volume of the output chamber 601 of the valve body 600, flow regulation is achieved. Pressure sensor 500 monitors the pressure at the front and rear ends of valve body 600 in real time and feeds it back to controller 230. Controller 230 controls stepper motor 401 to operate based on the pressure difference, forming a closed-loop regulation. Simultaneously, battery 211 on cover 200 powers stepper motor 401 and controller 230, and sliding cover 220 allows easy opening of operating compartment 210 for battery replacement. Manual operation component 410 serves as an emergency mechanism when the battery is dead. By sliding and rotating control handle 411, its end is inserted into rotating slot 413 of rotating shaft 412, driving rotating gear 414 to mesh with auxiliary gear 415 and drive adjusting gear 404 to rotate, enabling manual opening or closing of the valve in case of power failure. Return spring 416 automatically returns control handle 411 to its original position after operation. External display control panel 701 can display gas equipment detection information in a prominent installation location. The overall structure combines automatic adjustment and manual operation functions, achieving precise control and safe monitoring of gas flow through the synergy of mechanical transmission and intelligent control.

[0048] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Any feature disclosed in this specification (including the abstract and drawings) may be replaced by other equivalent or similar features unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is only one example of a series of equivalent or similar features.

Claims

1. An adjustable flow rate intelligent safety valve for gas, characterized in that, include: The valve body (600) is installed on the gas pipeline and has an output cavity (601) that communicates with the gas pipeline. The rubber cap (310) is elastically configured with a groove having a telescopic structure and is sealed to the valve body (600); when the rubber cap (310) extends into the valve body (600), it adjusts the volume of the output cavity (601) or cuts off the gas supply; A drive assembly (400) is disposed on the valve body (600) for driving the movement of the rubber cover (310) to extend or retract the rubber cover (310); Pressure sensors (500) are disposed on both sides of the output cavity (601) and are sealed on the valve body (600) for monitoring the pressure at the front and rear ends of the valve body (600); The controller (230), electrically connected to the pressure sensor (500) and the drive assembly (400), is used to control the operation of the drive assembly (400) according to the pressure at the front and rear ends of the valve body (600).

2. The adjustable flow rate intelligent safety valve for gas as described in claim 1, characterized in that, The intelligent gas safety valve also includes: A metal valve cover (320) is installed on the valve body (600) by screws to press and seal the rubber cover (310) on the valve body (600). A central hole (321) is also provided in the middle of the metal valve cover (320). A convex cap (330) is installed between the metal valve cover (320) and the rubber cover (310) and is embedded in the extrusion groove (301) opened in the middle of the rubber cover (310). The convex cap (330) is sealed and slidably connected to the metal valve cover (320) through the central hole (321). The metal valve cover (320), the convex cap (330), and the rubber cover (310) constitute a valve cover component (300) for sealing the output cavity (601). The convex cap (330) can be moved by force to change the volume of the output cavity (601) or cut off the gas supply.

3. The adjustable flow intelligent safety valve for gas according to claim 2, characterized in that, The drive assembly (400) is mounted on the metal valve cover (320) and is used to apply a linear driving force to the convex cap (330).

4. The adjustable flow intelligent safety valve for gas as described in claim 3, characterized in that, The drive component (400) includes: The gearbox body (402) is mounted on the metal valve cover (320); A stepper motor (401) is mounted on the surface of the gearbox (402) and is electrically connected to the controller (230); The main gear (403) is rotatably connected inside the gearbox (402) and is coaxially fixedly connected to the output shaft of the stepper motor (401); Adjusting gear (404) meshes with main gear (403) and is rotatably connected inside gearbox (402); The gear shaft (405) is coaxially threaded to the adjusting gear (404) and slidably connected to the gearbox body (402), and is detachably connected to the convex cap (330) through the central hole (321).

5. The adjustable flow intelligent safety valve for gas according to claim 3, characterized in that, The intelligent gas safety valve also includes: A cover (200) is sealed and installed on the valve body (600) to cover the drive assembly (400) and has an operating compartment (210); the controller (230) is installed inside the cover (200); A battery (211), installed in the operating compartment (210), is used to power the controller (230) and the drive assembly (400).

6. The adjustable flow rate intelligent safety valve for gas according to claim 5, characterized in that, The intelligent gas safety valve also includes: A manual operating component (410) is installed inside the housing (200) for manually driving the rotation of the adjusting gear (404); A sliding cover (220) is slidably connected to the shell cover (200) and is used to open and close the operating compartment (210).

7. The adjustable flow intelligent safety valve for gas according to claim 6, characterized in that, The manual operation component (410) includes: A control handle (411) is slidably and rotatably connected to the housing cover (200); one end of the control handle (411) is placed inside the operating chamber (210); The rotating shaft (412) has a rotating slot (413) and is rotatably connected to the metal valve cover (320). The other end of the control handle (411) can be inserted into the rotating slot (413). A rotating gear (414) is coaxially fixedly connected to the rotating shaft (412); An auxiliary gear (415) is rotatably connected to the metal valve cover (320); the rotating gear (414) meshes with the auxiliary gear (415), and the auxiliary gear (415) meshes with the adjusting gear (404); A reset spring (416) is sleeved on the control handle (411) and is used to reset the control handle (411) after rotation.

8. The adjustable flow intelligent safety valve for gas according to claim 1, characterized in that, The intelligent gas safety valve also includes: The display control panel (701) is separately set from the valve body (600) and installed in a convenient location; the display control panel (701) is wirelessly connected to the controller (230).

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