Household pipeline gas self-closing valve

Abstract

The invention relates to the technical field of gas valves, in particular to a household pipeline gas self-closing valve which comprises a self-closing valve shell internally provided with a self-closing valve structure, and further comprises a monitoring detection pipe fixedly installed on the self-closing valve shell and communicated with the self-closing valve shell, and a gas inlet pipe fixedly installed on the monitoring detection pipe and communicated with the self-closing valve shell. The safety monitoring mechanism is connected with the self-closing valve shell, the monitoring detection pipe and the self-closing valve structure, and the safety monitoring mechanism comprises a lifting reset assembly and a valve movement detection assembly; according to the household pipeline gas self-closing valve, the closing speed of the valve can be detected, whether the valve can be completely closed or not can be detected, the situation that the use safety of the valve is affected due to the fact that some parts of the valve are possibly aged is avoided, and the safety of the self-closing valve in the use process is guaranteed advantageously.

Description

Technical Field

[0001] The invention relates to the technical field of gas valves, in particular to a household pipeline gas self-closing valve. Background Art

[0002] The household pipeline gas self-closing valve, referred to as the self-closing valve, is an important gas safety protection device. From a safety perspective, gas, as an energy source, brings convenience to people, but also comes with certain safety risks. In particular, when there is a gas leak, abnormal pressure or excessive flow in the gas pipeline, if timely measures are not taken, it may cause a gas accident, posing a serious threat to people's life and property safety. Therefore, it is particularly important to develop a safety device that can automatically monitor the use of gas and automatically cut off the gas under abnormal conditions. The self-closing valve is usually installed at the end of the indoor low-pressure gas pipeline and connected to the gas appliance through a connecting pipe. It uses the principles of fluid mechanics, aerodynamics and magnetic properties to automatically monitor and intelligently analyze the gas usage of the gas continuously. Once a safety hazard in the use of gas is detected, such as leakage, low or high pressure and abnormal flow, the self-closing valve will automatically close and cut off the gas source, thereby effectively avoiding the occurrence of gas accidents.

[0003] The safety of the existing household pipeline gas self-closing valve is particularly important during use. For example, some parts of the valve may be aged, which affects the closing speed of the valve or directly causes the valve to fail to close completely due to obstruction, thereby affecting the safety of the valve and causing inconvenience to the user. Therefore, in view of the above situation, it is urgent to develop a household pipeline gas self-closing valve to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The object of the present invention is to provide a household pipeline gas self-closing valve to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A household pipeline gas self-closing valve comprises a self-closing valve housing, a self-closing valve structure is arranged in the self-closing valve housing, and further comprises: A monitoring and detecting tube, which is fixedly mounted on the housing of the self-closing valve and communicated with the housing of the self-closing valve; and a safety monitoring mechanism, which is respectively connected to the self-closing valve housing, the monitoring detection tube and the self-closing valve structure, wherein the safety monitoring mechanism includes a lifting and resetting component and a valve movement detection component; The lifting and resetting assembly is respectively connected to the self-closing valve housing and the self-closing valve structure, and the valve movement detection assembly is located in the monitoring detection tube and is connected to the lifting and resetting assembly.

[0006] As a further solution of the present invention: it also includes: an air outlet, the air outlet is fixedly connected to the self-closing valve housing and communicates with the self-closing valve housing; An air inlet is fixedly connected to the self-closing valve housing and communicated with the self-closing valve housing, and the air inlet is also connected to the self-closing valve structure.

[0007] As a further solution of the present invention: it also includes: an electric control box, which is fixedly mounted on the housing of the self-closing valve and is also electrically connected to the safety monitoring mechanism; And an inspection cover, wherein the inspection cover is detachably connected to the self-closing valve housing.

[0008] As a further solution of the present invention: the lifting and resetting assembly comprises: A protective bracket, wherein the protective bracket is fixedly mounted on the housing of the self-closing valve; A pull rope, one end of which passes through the monitoring and detection tube and the protective bracket, and is slidably connected to the monitoring and detection tube and the protective bracket respectively, and a valve opening disc is fixedly installed at the end of the pull rope, and the valve opening disc abuts against the protective bracket; And a wire pull rod, one end of which is connected to the self-closing valve structure, and the other end of which is connected to the other end of the pull rope through a valve movement detection component.

[0009] As a further solution of the present invention: the valve movement detection component includes: A foam float, wherein the foam float is connected to the steel wire pull rod and the pull rope respectively, wherein the steel wire pull rod and the pull rope are symmetrically distributed on both sides of the foam float; An opening and closing detection panel, wherein the opening and closing detection panel is fixedly installed in the monitoring detection tube; And detector one and detector two, the detector one and detector two are fixedly installed on the opening and closing detection panel, when the self-closing valve structure is closed, the foam float moves from the position of the detector one to the position of the detector two in the monitoring detection tube.

[0010] As a further solution of the present invention: the diameter of the foam float is smaller than the inner diameter of the monitoring and detecting tube, and is spaced 1 cm to 2 cm from the inner wall of the monitoring and detecting tube; When the self-closing valve structure is in a normal working state, the pull rope is in a relaxed state.

[0011] As a further solution of the present invention: it also includes: an observation glass surface, which is fixedly mounted on the monitoring and detection tube and is arranged directly opposite to the protective bracket; And a discharge hole, the number of the discharge holes is multiple, and the multiple discharge holes are evenly opened on the top of the monitoring and detection tube.

[0012] As a further solution of the present invention: the self-closing valve structure comprises: An opening and closing control chamber, wherein the opening and closing control chamber is fixedly installed in the housing of the self-closing valve, and the opening and closing control chamber is provided with two discharge ports, and the two discharge ports are respectively connected to the air outlet and the air inlet; A sliding guide post, the sliding guide post passes through the opening and closing control compartment and is slidably connected to the opening and closing control compartment, and the sliding guide post is also connected to the lifting and resetting assembly; A lifting connection column, wherein the lifting connection column is fixedly connected to the sliding guide column, and the lifting connection column is also fixedly connected to the inner wall of the opening and closing control compartment through two elastic control rods; A connecting head, the connecting head is fixedly mounted on the bottom end of the lifting connecting column; And an opening and closing control component, wherein the opening and closing control component is respectively connected to the opening and closing control compartment and the connector, and is connected to the air inlet.

[0013] As a further solution of the present invention: the opening and closing control component includes: A push-pull frame, wherein the push-pull frame is fixedly connected to the connecting head; Connecting rod 1 and connecting rod 2, one end of each of the connecting rod 1 and the connecting rod 2 is movably connected to the push-pull frame, and the connecting rod 1 and the connecting rod 2 are respectively located on both sides of the push-pull frame, wherein the other end of the connecting rod 1 is rotatably connected to the inner wall of the opening and closing control compartment; A telescopic rod, the telescopic rod being rotatably connected to the other end of the second connecting rod; And a gas plug, which is slidably installed in the air inlet and is rotatably connected to the other end of the telescopic rod, wherein the gas plug can seal the outlet of the air inlet.

[0014] As a further solution of the present invention: it also includes: a detection head, which is fixedly mounted on the push-pull frame and detachably connected to the inner wall of the opening and closing control compartment; And a flash warning device and a buzzer warning device, the flash warning device and the buzzer warning device are both fixedly installed on the self-closing valve housing and are both electrically connected to the detection head.

[0015] Compared with the prior art, the present invention has the following beneficial effects: During the use of gas, first, the entire device can be installed on the gas pipe through the air outlet and the air inlet, and installed close to the stove. Then, when the gas leaks or the pressure is low, the self-closing valve structure will automatically close. In this process, the self-closing valve structure will drive the lifting and resetting component to operate, and the lifting and resetting component can enable the valve movement detection component to work, thereby detecting the closing speed during the operation of the self-closing valve structure. In addition, since the self-closing valve housing is in a sealed structure, when a leak occurs at the self-closing valve structure, the leaked gas will enter the monitoring detection tube and activate the valve movement detection component in the monitoring detection tube, thereby conveniently reminding the user of the use of the valve. The operation is simple, and the closing speed of the valve and whether it can be completely closed can be detected, thereby avoiding the safety of the valve use affected by the aging of some parts of the valve, which is conducive to ensuring the safety of the self-closing valve during use and provides convenience for the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the front side of the household pipeline gas self-closing valve in an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the rear side of the household pipeline gas self-closing valve in an embodiment of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the distribution of the inspection cover in an embodiment of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the opening and closing control compartment in an embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the push-pull frame in an embodiment of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the gas plug in an embodiment of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the detection head in an embodiment of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the foam float in an embodiment of the present invention.

[0024] Fig. 9 It is a schematic diagram of the cross-sectional structure of the observation glass surface in the embodiment of the present invention.

[0025] In the figure: 1-self-closing valve housing, 2-air outlet, 3-air inlet, 4-protective bracket, 5-valve opening disc, 6-flash warning device, 7-buzzer warning device, 8-electric control box, 9-drain hole, 10-monitoring detection tube, 11-inspection cover, 12-opening and closing control compartment, 13-discharge port, 14-sliding guide column, 15-wire pull rod, 16-lifting connecting column, 17-connecting head, 18-elastic control rod, 19-push-pull frame, 20-connecting rod one, 21-connecting rod two, 22-telescopic rod, 23-gas plug, 24-detection head, 25-opening and closing detection panel, 26-foam float, 27-pull rope, 28-detector one, 29-detector two, 30-observation glass surface. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0028] See also Figure 1-Figure 9 A household pipeline gas self-closing valve provided by an embodiment of the present invention comprises a self-closing valve housing 1, wherein a self-closing valve structure is arranged in the self-closing valve housing 1, and further comprises: A monitoring and detecting tube 10, wherein the monitoring and detecting tube 10 is fixedly mounted on the self-closing valve housing 1 and is in communication with the self-closing valve housing 1; and a safety monitoring mechanism, which is respectively connected to the self-closing valve housing 1, the monitoring detection tube 10 and the self-closing valve structure, wherein the safety monitoring mechanism includes a lifting and resetting component and a valve movement detection component; The lifting and resetting assembly is respectively connected to the self-closing valve housing 1 and the self-closing valve structure, and the valve movement detection assembly is located in the monitoring detection tube 10 and is connected to the lifting and resetting assembly.

[0029] See also Figure 1-Figure 9 , further comprising: an air outlet 2, the air outlet 2 being fixedly connected to the self-closing valve housing 1 and communicating with the self-closing valve housing 1; The air inlet 3 is fixedly connected to the self-closing valve housing 1 and communicated with the self-closing valve housing 1, and the air inlet 3 is also connected to the self-closing valve structure.

[0030] It also includes: an electric control box 8, which is fixedly mounted on the self-closing valve housing 1, and the electric control box 8 is also electrically connected to the safety monitoring mechanism; And an inspection cover 11, wherein the inspection cover 11 is detachably connected to the self-closing valve housing 1.

[0031] During the use of gas, first, the entire device can be installed on the gas pipe through the air outlet 2 and the air inlet 3, and installed close to the stove. Then, when the gas leaks or the pressure is low, the self-closing valve structure will automatically close. In this process, the self-closing valve structure will drive the lifting and resetting component to operate, and the lifting and resetting component can enable the valve movement detection component to work, so as to detect the closing speed during the operation of the self-closing valve structure. In addition, since the self-closing valve housing 1 is in a sealed structure, when a leak occurs at the self-closing valve structure, the leaked gas will enter the monitoring detection tube 10 and activate the valve movement detection component in the monitoring detection tube 10, so as to easily remind the user of the use of the valve. The operation is simple, and the closing speed of the valve and whether it can be completely closed can be detected, so as to avoid the safety of the valve use affected by the aging of some parts of the valve, which is conducive to ensuring the safety of the self-closing valve during use and provides convenience for the user.

[0032] In one embodiment of the present invention, see Figure 1-Figure 9 , the lifting and resetting component comprises: A protective bracket 4, wherein the protective bracket 4 is fixedly mounted on the self-closing valve housing 1; A pull rope 27, one end of which passes through the monitoring and detection tube 10 and the protective bracket 4, and is slidably connected to the monitoring and detection tube 10 and the protective bracket 4 respectively, and a valve opening disc 5 is fixedly installed at the end of the pull rope 27, and the valve opening disc 5 abuts against the protective bracket 4; And a wire pull rod 15, one end of the wire pull rod 15 is connected to the self-closing valve structure, and the other end of the wire pull rod 15 is connected to the other end of the pull rope 27 through a valve movement detection component.

[0033] The valve movement detection component comprises: A foam float 26, wherein the foam float 26 is connected to the steel wire pull rod 15 and the pull rope 27 respectively, wherein the steel wire pull rod 15 and the pull rope 27 are symmetrically distributed on both sides of the foam float 26; An opening and closing detection panel 25, wherein the opening and closing detection panel 25 is fixedly installed in the monitoring detection tube 10; And detector one 28 and detector two 29, the detector one 28 and detector two 29 are fixedly mounted on the opening and closing detection panel 25, when the self-closing valve structure is closed, the foam float 26 moves from the position of the detector one 28 to the position of the detector two 29 in the monitoring detection tube 10.

[0034] The diameter of the foam float 26 is smaller than the inner diameter of the monitoring and detecting tube 10, and is spaced 1 cm to 2 cm from the inner wall of the monitoring and detecting tube 10; When the self-closing valve structure is in normal working state, the pull rope 27 is in a relaxed state.

[0035] It also includes: an observation glass surface 30, which is fixedly mounted on the monitoring and detecting tube 10 and is arranged directly opposite to the protective bracket 4; And a discharge hole 9 , wherein the number of the discharge holes 9 is multiple, and the multiple discharge holes 9 are evenly opened on the top of the monitoring and detecting tube 10 .

[0036] When the self-closing valve structure performs a closing action, the wire pull rod 15 will be pulled downward to move, and the foam float 26 will be driven to move in the monitoring detection tube 10, wherein the end of the wire pull rod 15 is movably connected to the foam float 26, that is, the foam float 26 can automatically swing within a certain range on the end of the wire pull rod 15. When the self-closing valve structure is in a normal working state, the foam float 26 is directly opposite to the detector 1 28. When the valve is closed, the foam float 26 will move downward to the detector 2 29, thereby indirectly calculating the valve closing speed through the time taken by the valve to drive the foam float 26 to move from the detector 1 28 to the detector 2 29. After the gas is normally introduced, the user can manually pull the valve opening disc 5 and drive the pull rope 27 to move upward, and at the same time, the foam float 26 and the wire pull rod 15 can be pulled upward synchronously, so that the self-closing valve structure can be opened again (the self-closing valve structure can only be opened in the ventilation state and in conjunction with manual opening to make the self-closing valve structure open again). The closed valve structure restores to an open state. The above are all prior arts and will not be elaborated on here. In addition, during the normal use of the self-closing valve structure, when a leak occurs at the valve, the leaked gas will gather in the self-closing valve housing 1 and eventually be transported to the monitoring and detection tube 10. When the gathered gas reaches the monitoring and detection tube 10, it will exert a force on the foam float 26, causing the foam float 26 to swing on the wire pull rod 15. At this time, the user can observe the leakage of the valve during use through the observation glass surface 30, thereby further ensuring the safety of the valve during use. After the gas passes through the foam float 26, it will be discharged to the outside from the discharge hole 9 set at the top of the monitoring and detection tube 10 to avoid the accumulation of gas. In addition, since the observation glass surface 30 is arranged opposite to the protective bracket 4, the protective bracket 4 can protect the observation glass surface 30 to avoid the observation glass surface 30 from being broken due to collision.

[0037] In one embodiment of the present invention, see Figure 1-Figure 9 , the self-closing valve structure comprises: An opening and closing control compartment 12, wherein the opening and closing control compartment 12 is fixedly installed in the self-closing valve housing 1, and the opening and closing control compartment 12 is provided with two discharge ports 13, and the two discharge ports 13 are respectively connected to the air outlet 2 and the air inlet 3; A sliding guide post 14, wherein the sliding guide post 14 passes through the opening and closing control compartment 12 and is slidably connected to the opening and closing control compartment 12, and the sliding guide post 14 is also connected to the lifting and resetting assembly; A lifting connection column 16, wherein the lifting connection column 16 is fixedly connected to the sliding guide column 14, and the lifting connection column 16 is also fixedly connected to the inner wall of the opening and closing control compartment 12 through two elastic control rods 18; A connecting head 17, wherein the connecting head 17 is fixedly mounted on the bottom end of the lifting connecting column 16; And an opening and closing control component, wherein the opening and closing control component is respectively connected to the opening and closing control compartment 12 and the connector 17, and is connected to the air inlet 3.

[0038] The opening and closing control component comprises: A push-pull frame 19, wherein the push-pull frame 19 is fixedly connected to the connector 17; A connecting rod 1 20 and a connecting rod 21, one end of each of the connecting rod 1 20 and the connecting rod 21 is movably connected to the push-pull frame 19, and the connecting rod 1 20 and the connecting rod 21 are respectively located on both sides of the push-pull frame 19, wherein the other end of the connecting rod 1 20 is rotatably connected to the inner wall of the opening and closing control compartment 12; A telescopic rod 22, wherein the telescopic rod 22 is rotatably connected to the other end of the second connecting rod 21; And a gas plug 23, which is slidably installed in the air inlet 3 and is rotatably connected to the other end of the telescopic rod 22, wherein the gas plug 23 can block the outlet of the air inlet 3.

[0039] See also Figure 1-Figure 9 , further comprising: a detection head 24, the detection head 24 is fixedly mounted on the push-pull frame 19, and is detachably connected to the inner wall of the opening and closing control compartment 12; And a flash warning device 6 and a buzzer warning device 7 , wherein the flash warning device 6 and the buzzer warning device 7 are both fixedly mounted on the self-closing valve housing 1 , and are both electrically connected to the detection head 24 .

[0040] When the gas pressure in the valve cavity is lower than a certain value, under the elastic action of the elastic control rod 18, the lifting connecting column 16 can drive the sliding guide column 14 to move downward, and the wire pull rod 15 can be moved downward synchronously, so as to detect whether the valve is working abnormally. When the lifting connecting column 16 moves downward, it will push the connecting head 17 and the push-pull frame 19 to move downward synchronously, and the downward movement of the push-pull frame 19 will drive the connecting rod 1 20 and the connecting rod 2 21 to rotate from a horizontal state to a state where the two have a certain angle (when the connecting rod 1 20 and the connecting rod 21 are in a horizontal state, the valve is in an open state). Then, under the pulling action of the connecting rod 21, the telescopic rod 22 will pull the gas plug 23 to move in the direction of the push-pull frame 19, thereby adjusting the intake air pressure. The outlet of the opening 3 is blocked to keep the valve in a closed state. When the push-pull frame 19 moves down and reaches the lowest point (the valve is closed at this time), the detection head 24 will also contact the inner bottom wall of the opening and closing control compartment 12, so that the flash warning device 6 and the buzzer warning device 7 can be started at the same time to remind the user that the valve is closed and is in a normally closed state. In an abnormal closing situation, such as when the valve is stuck, the detection head 24 cannot contact the inner bottom wall of the opening and closing control compartment 12, so that the flash warning device 6 and the buzzer warning device 7 cannot be started, so as to further ensure the safety of the self-closing valve and promptly remind the user whether the working state of the valve is abnormal. No further details will be given here.

[0041] It should be noted that in the present invention, unless otherwise clearly specified and limited, the terms "slide", "rotate", "fix", "have" and the like should be understood in a broad sense, for example, it can be a welding connection, a bolt connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A household pipeline gas self-closing valve, comprising a self-closing valve housing, wherein a self-closing valve structure is arranged in the self-closing valve housing, characterized in that: Also includes: A monitoring and detecting tube, which is fixedly mounted on the housing of the self-closing valve and communicated with the housing of the self-closing valve; and a safety monitoring mechanism, which is respectively connected to the self-closing valve housing, the monitoring detection tube and the self-closing valve structure, wherein the safety monitoring mechanism includes a lifting and resetting component and a valve movement detection component; The lifting and resetting assembly is respectively connected to the self-closing valve housing and the self-closing valve structure, and the valve movement detection assembly is located in the monitoring detection tube and is connected to the lifting and resetting assembly.

2. The household pipeline gas self-closing valve according to claim 1, characterized in that: Also includes: An air outlet, the air outlet is fixedly connected to the self-closing valve housing and communicates with the self-closing valve housing; An air inlet is fixedly connected to the self-closing valve housing and communicated with the self-closing valve housing, and the air inlet is also connected to the self-closing valve structure.

3. The household pipeline gas self-closing valve according to claim 2, characterized in that: Also includes: An electric control box, which is fixedly mounted on the housing of the self-closing valve and is also electrically connected to the safety monitoring mechanism; And an inspection cover, wherein the inspection cover is detachably connected to the self-closing valve housing.

4. The household pipeline gas self-closing valve according to any one of claims 1 to 3, characterized in that: The lifting and resetting assembly comprises: A protective bracket, wherein the protective bracket is fixedly mounted on the housing of the self-closing valve; A pull rope, one end of which passes through the monitoring and detection tube and the protective bracket, and is slidably connected to the monitoring and detection tube and the protective bracket respectively, and a valve opening disc is fixedly installed at the end of the pull rope, and the valve opening disc abuts against the protective bracket; And a wire pull rod, one end of which is connected to the self-closing valve structure, and the other end of which is connected to the other end of the pull rope through a valve movement detection component.

5. The household pipeline gas self-closing valve according to claim 4, characterized in that: The valve movement detection component comprises: A foam float, wherein the foam float is connected to the steel wire pull rod and the pull rope respectively, wherein the steel wire pull rod and the pull rope are symmetrically distributed on both sides of the foam float; An opening and closing detection panel, wherein the opening and closing detection panel is fixedly installed in the monitoring detection tube; And detector one and detector two, the detector one and detector two are fixedly installed on the opening and closing detection panel, when the self-closing valve structure is closed, the foam float moves from the position of the detector one to the position of the detector two in the monitoring detection tube.

6. The household pipeline gas self-closing valve according to claim 5, characterized in that: The diameter of the foam float is smaller than the inner diameter of the monitoring and detecting tube, and the foam float is spaced 1 cm to 2 cm from the inner wall of the monitoring and detecting tube; When the self-closing valve structure is in a normal working state, the pull rope is in a relaxed state.

7. The household pipeline gas self-closing valve according to claim 6, characterized in that: It also includes: an observation glass surface, which is fixedly mounted on the monitoring and detecting tube and is arranged directly opposite to the protective bracket; And a discharge hole, the number of the discharge holes is multiple, and the multiple discharge holes are evenly opened on the top of the monitoring and detection tube.

8. The household pipeline gas self-closing valve according to claim 2 or 3, characterized in that: The self-closing valve structure comprises: An opening and closing control chamber, wherein the opening and closing control chamber is fixedly installed in the housing of the self-closing valve, and the opening and closing control chamber is provided with two discharge ports, and the two discharge ports are respectively connected to the air outlet and the air inlet; A sliding guide post, the sliding guide post passes through the opening and closing control compartment and is slidably connected to the opening and closing control compartment, and the sliding guide post is also connected to the lifting and resetting assembly; A lifting connection column, wherein the lifting connection column is fixedly connected to the sliding guide column, and the lifting connection column is also fixedly connected to the inner wall of the opening and closing control compartment through two elastic control rods; A connecting head, the connecting head is fixedly mounted on the bottom end of the lifting connecting column; And an opening and closing control component, wherein the opening and closing control component is respectively connected to the opening and closing control compartment and the connector, and is connected to the air inlet.

9. The household pipeline gas self-closing valve according to claim 8, characterized in that: The opening and closing control component comprises: A push-pull frame, wherein the push-pull frame is fixedly connected to the connecting head; Connecting rod 1 and connecting rod 2, one end of each of the connecting rod 1 and the connecting rod 2 is movably connected to the push-pull frame, and the connecting rod 1 and the connecting rod 2 are respectively located on both sides of the push-pull frame, wherein the other end of the connecting rod 1 is rotatably connected to the inner wall of the opening and closing control compartment; A telescopic rod, the telescopic rod being rotatably connected to the other end of the second connecting rod; And a gas plug, which is slidably installed in the air inlet and is rotatably connected to the other end of the telescopic rod, wherein the gas plug can seal the outlet of the air inlet.

10. The household pipeline gas self-closing valve according to claim 9, characterized in that: Also includes: A detection head, which is fixedly mounted on the push-pull frame and detachably connected to the inner wall of the opening and closing control compartment; And a flash warning device and a buzzer warning device, the flash warning device and the buzzer warning device are both fixedly installed on the self-closing valve housing and are both electrically connected to the detection head.

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