Intelligent gas self-closing valve

Abstract

The invention discloses an intelligent gas self-closing valve, and belongs to the technical field of gas valves, the intelligent gas self-closing valve comprises a valve body, a pressure sensor, a flow sensor and a sound-light alarm module are connected in the valve body, and the bottom of the valve body is connected with a shell; when micro leakage occurs and flow data sensed by the flow sensor are analyzed and processed by the circuit module, the circuit module gives an electrification instruction to control the electromagnet to work, the electromagnet generates magnetic force after being electrified to adsorb the iron sheet below the stand column, and the iron sheet drives the stand column to move downwards; the stand column drives the cut-off rod to move rightwards through the rocker arm, the cut-off head is attached to the air inlet, and air inlet is cut off, so that the self-closing valve is not prone to danger when micro leakage occurs, and when data collected by the flow sensor and the pressure sensor are abnormal, a control unit in the circuit module sends signals and feeds the signals back to the outside through the sound-light alarm module. Therefore, a user can know the abnormal condition of the self-closing valve in time.

Description

Technical Field

[0001] The invention belongs to the technical field of gas valves, and in particular relates to an intelligent gas self-closing valve. Background Art

[0002] As a key device to ensure the safety of gas use, the gas self-closing valve has been installed at a significantly higher rate in recent years, driven by domestic and international policies and regulations. The market demand continues to be strong. With the increasing awareness of gas safety among residents and the implementation of mandatory installation regulations in new residential buildings and other places, the gas self-closing valve has been upgraded from an optional feature to a standard feature.

[0003] The existing self-closing valve cannot protect against small leaks at the rear end, so that users cannot promptly learn of small leaks in the self-closing valve, which may easily lead to safety hazards. Therefore, intelligent gas self-closing valves are needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent gas self-closing valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an intelligent gas self-closing valve, comprising a valve body, wherein a pressure sensor, a flow sensor and a sound and light alarm module are connected inside the valve body, an outer shell is connected to the bottom of the valve body, a battery pack, an electromagnet and a circuit module are connected inside the outer shell, the pressure sensor, the flow sensor and the sound and light alarm module are connected to the circuit module, and the circuit module and the electromagnet are both connected to the battery pack.

[0006] As a preferred solution, the valve body and the upper cover are connected in a buckle combination, a membrane is provided between the valve body and the upper cover, the space above and below the membrane are respectively set as an upper chamber and a lower chamber, an air inlet and an air outlet are respectively provided on both sides of the lower chamber, and the flow sensor and the pressure sensor are arranged between the air inlet and the air outlet.

[0007] As a preferred solution, the valve body is connected to the positioning plate by screws, the positioning plate is overlapped with the magnet tray, a magnet is placed in the magnet tray, the magnet is connected to the column by screws, an iron pull rod is provided in the upper chamber, the iron pull rod is sleeved in the membrane, a placement tray is provided on the membrane, a retaining ring is installed on the placement tray, the top end of the iron pull rod is overlapped with the magnet, a second spring is connected to the outer shell of the iron pull rod, and both ends of the second spring are respectively connected to the retaining ring and the upper cover.

[0008] As a preferred solution, the positioning plate is configured as an iron positioning plate, and the sound and light alarm module is composed of a sound alarm and a light alarm.

[0009] As a preferred solution, an iron sheet is connected to the bottom of the column, the column is connected to the rocker arm through a pin, the rocker arm is riveted to the valve body, one end of the rocker arm is connected to the cutting rod, and the other end of the cutting rod is connected to the cutting head.

[0010] As a preferred solution, a dust cover, a valve core and an air intake bracket are installed in the air inlet, a first spring is connected to the outer sleeve of the valve core, and two ends of the first spring are respectively connected to the air intake bracket and the valve core.

[0011] As a preferred solution, a reset button inner sleeve is installed at the top of the iron pull rod, a reset button outer sleeve is installed on the top of the upper cover, the reset button inner sleeve is arranged inside the reset button outer sleeve, a ball valve is connected to the valve body, and the ball valve is arranged between the flow sensor and the air outlet.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention is provided with an electromagnet, a flow sensor, a pressure sensor, a battery pack, a circuit module and an acoustic and visual alarm module. When a micro-leakage occurs, the flow sensor senses the flow data, which is analyzed and processed by the circuit module. When the set degree is reached, the circuit module gives a power-on instruction to control the electromagnet to work. After the electromagnet is energized, a magnetic force is generated to adsorb the iron sheet under the column. The iron sheet drives the column to move downward. The column drives the cutting rod to move rightward through the rocker arm. The cutting head fits the air inlet and cuts off the air intake, so that the self-closing valve is not prone to danger when a micro-leakage occurs. When the flow sensor and the pressure sensor collect abnormal data, the control unit in the circuit module sends a signal and feeds back to the outside world through the acoustic and visual alarm module, so that the user can be informed of the abnormal condition of the self-closing valve in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention from a top view; Figure 2 It is a cross-sectional view of the present invention.

[0014] In the figure: 1. positioning plate; 2. upper cover; 3. magnet; 4. iron pull rod; 5. reset button inner sleeve; 6. cutting rod; 7. magnet tray; 8. membrane; 9. valve body; 10. placement tray; 11. column; 12. rocker arm; 13. dust cover; 14. valve core; 15. air intake bracket; 16. retaining ring; 17. first spring; 18. cutting head; 19. reset button outer sleeve; 20. battery pack; 21. outer shell; 22. electromagnet; 23. circuit module; 24. pressure sensor; 25. flow sensor; 26. air inlet; 27. air outlet; 28. ball valve; 29. ​​lower chamber; 30. upper chamber; 31. iron sheet; 32. second spring; 33. sound and light alarm module. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the embodiments.

[0016] The following examples are used to illustrate the present invention, but they cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions. Simple improvements to the method of the present invention under the premise of the concept of the present invention belong to the scope of protection claimed in the present invention.

[0017] See also Figure 1-2 The present invention provides an intelligent gas self-closing valve, including a valve body 9, a pressure sensor 24, a flow sensor 25 and a sound and light alarm module 33 are connected in the valve body 9, a shell 21 is connected to the bottom of the valve body 9, a battery pack 20, an electromagnet 22 and a circuit module 23 are connected in the shell 21, the pressure sensor 24, the flow sensor 25 and the sound and light alarm module 33 are connected to the circuit module 23, the circuit module 23 and the electromagnet 22 are both connected to the battery pack 20, the valve body 9 and the upper cover 2 are connected in a buckle combination, a membrane 8 is provided between the valve body 9 and the upper cover 2, the space above and below the membrane 8 is respectively set as an upper chamber 30 and a lower chamber 29, an air inlet 26 and an air outlet 27 are respectively provided on both sides of the lower chamber 29, and the flow sensor 25 and the pressure sensor 24 are provided between the air inlet 26 and the air outlet 27; The valve body 9 is connected to the positioning plate 1 by screws, the positioning plate 1 is overlapped with the magnet tray 7, a magnet 3 is placed in the magnet tray 7, the magnet 3 is connected to the column 11 by screws, an iron tie rod 4 is arranged in the upper chamber 30, the iron tie rod 4 is sleeved in the membrane 8, a placement tray 10 is arranged on the membrane 8, a retaining ring 16 is installed on the placement tray 10, the top end of the iron tie rod 4 is overlapped with the magnet 3, and the placement tray 10 is arranged, and the placement tray 10 is used to support the membrane 8; The outer sleeve of the iron rod 4 is connected with a second spring 32, and the two ends of the second spring 32 are respectively connected with the retaining ring 16 and the upper cover 2. By providing the retaining ring 16 and the second spring 32, the retaining ring 16 presses the membrane 8 under the elastic force of the second spring 32 to prevent the gas from leaking from the gap between the membrane 8 and the iron rod 4; The positioning plate 1 is set as an iron positioning plate 1, and the sound and light alarm module 33 is composed of a sound alarm and a light alarm; The bottom of the column 11 is connected with an iron sheet 31, the column 11 is connected with a rocker arm 12 through a pin, the rocker arm 12 is riveted to the valve body 9, one end of the rocker arm 12 is connected with a cutting rod 6, and the other end of the cutting rod 6 is connected with a cutting head 18; A dust cover 13, a valve core 14 and an air intake bracket 15 are installed in the air intake port 26. A first spring 17 is connected to the outer sleeve of the valve core 14. Both ends of the first spring 17 are connected to the air intake bracket 15 and the valve core 14 respectively. A reset button inner sleeve 5 is installed at the top of the iron pull rod 4, a reset button outer sleeve 19 is installed on the top of the upper cover 2, the reset button inner sleeve 5 is arranged in the reset button outer sleeve 19, a ball valve 28 is connected to the valve body 9, and the ball valve 28 is arranged between the flow sensor 25 and the air outlet 27.

[0018] The working principle and use process of the present invention are as follows: lift the reset button outer sleeve 19, drive the reset button inner sleeve 5 and the iron pull rod 4 to move upward, and the iron pull rod 4 and the magnet 3 drive the column 11 to move upward in linkage, and the upward moving column 11 drives the rocker arm 12 to move forward, and the rocker arm 12 drives the cutting rod 6 to move forward, driving the cutting head 18 on the cutting rod 6 to separate from the valve port air inlet 26, and at this time the self-closing valve starts to ventilate; When the flow rate increases, the force on the valve core 14 increases, and the first spring 17 begins to compress. When it reaches a certain value, the valve core 14 fits with the air inlet bracket 15 to block the air inlet. The air pressure in the cavity of the valve body 9 decreases, and the buoyancy of the membrane 8 decreases. When the buoyancy of the membrane 8 is less than the magnetic force of the magnet 3 and the positioning plate 1, the magnet 3 and the positioning plate 1 are attracted to drive the column 11 downward. The column 11 drives the cutting rod 6 to move to the right through the rocker arm 12, and the cutting head 18 fits with the air inlet 26. At this time, the self-closing valve cuts off the air inlet. During the ventilation process, when the intake pressure is insufficient, the air pressure in the lower chamber 29 decreases, and the buoyancy of the membrane 8 decreases. When the buoyancy of the membrane 8 is less than the magnetic force of the magnet 3 and the positioning plate 1, the magnet 3 and the positioning plate 1 are attracted to drive the column 11 downward, and the column 11 drives the cutting rod 6 to move to the right through the rocker arm 12, and the cutting head 18 fits the air inlet 26. At this time, the self-closing valve cuts off the intake. When the pressure is too high, the membrane 8 expands under force. When the set value is reached, the iron pull rod 4 separates from the magnet 3, and the magnet 3 loses the buoyancy of the membrane 8. The magnet 3 is attracted to the positioning plate 1, driving the column 11 downward. The column 11 drives the cutting rod 6 to move to the right through the rocker arm 12, and the cutting head 18 fits the air inlet 26. At this time, the self-closing valve cuts off the air intake. When a micro-leakage occurs, the flow sensor 25 senses the flow data and analyzes and processes it through the circuit module 23. When the set degree is reached, the circuit module 23 gives a power-on command to control the electromagnet 22 to work. After the electromagnet 22 is energized, it generates a magnetic force to adsorb the iron sheet 31 under the column 11. The iron sheet 31 drives the column 11 to move downward. The column 11 drives the cutting rod 6 to move to the right through the rocker arm 12, and the cutting head 18 and the air inlet 26 are fitted together. At this time, the self-closing valve cuts off the air intake.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent gas self-closing valve, comprising a valve body (9), characterized in that: The valve body (9) is connected to a pressure sensor (24), a flow sensor (25) and a sound and light alarm module (33); the bottom of the valve body (9) is connected to a housing (21); a battery pack (20), an electromagnet (22) and a circuit module (23) are connected to the housing (21); the pressure sensor (24), the flow sensor (25) and the sound and light alarm module (33) are connected to the circuit module (23); and the circuit module (23) and the electromagnet (22) are both connected to the battery pack (20).

2. The intelligent gas self-closing valve according to claim 1 is characterized in that: The valve body (9) and the upper cover (2) are connected in a snap-fit ​​assembly, a membrane (8) is provided between the valve body (9) and the upper cover (2), the space above and below the membrane (8) are respectively set as an upper chamber (30) and a lower chamber (29), an air inlet (26) and an air outlet (27) are respectively provided on both sides of the lower chamber (29), and the flow sensor (25) and the pressure sensor (24) are provided between the air inlet (26) and the air outlet (27).

3. The intelligent gas self-closing valve according to claim 2 is characterized in that: The valve body (9) is connected to the positioning plate (1) by screws, the positioning plate (1) is overlapped with the magnet tray (7), a magnet (3) is placed in the magnet tray (7), the magnet (3) is connected to the column (11) by screws, an iron pull rod (4) is provided in the upper chamber (30), the iron pull rod (4) is sleeved in the membrane (8), a placement tray (10) is provided on the membrane (8), a retaining ring (16) is installed on the placement tray (10), the top end of the iron pull rod (4) is overlapped with the magnet (3), the outer shell of the iron pull rod (4) is connected to a second spring (32), and the two ends of the second spring (32) are respectively connected to the retaining ring (16) and the upper cover (2).

4. The intelligent gas self-closing valve according to claim 3 is characterized in that: The positioning plate (1) is an iron positioning plate (1), and the sound and light alarm module (33) is composed of a sound alarm and a light alarm.

5. The intelligent gas self-closing valve according to claim 3 is characterized in that: The bottom of the column (11) is connected to an iron sheet (31), the column (11) is connected to a rocker arm (12) via a pin, the rocker arm (12) is riveted to the valve body (9), one end of the rocker arm (12) is connected to a cutting rod (6), and the other end of the cutting rod (6) is connected to a cutting head (18).

6. The intelligent gas self-closing valve according to claim 2 is characterized in that: A dust cover (13), a valve core (14) and an air intake bracket (15) are installed in the air intake port (26); a first spring (17) is connected to the outer shell of the valve core (14); two ends of the first spring (17) are respectively connected to the air intake bracket (15) and the valve core (14).

7. The intelligent gas self-closing valve according to claim 3 is characterized in that: A reset button inner sleeve (5) is installed at the top of the iron pull rod (4), a reset button outer sleeve (19) is installed at the top of the upper cover (2), the reset button inner sleeve (5) is arranged inside the reset button outer sleeve (19), and a ball valve (28) is connected to the valve body (9), and the ball valve (28) is arranged between the flow sensor (25) and the air outlet (27).

Images