Shut-off trigger device of fuel gas shut-off valve

Abstract

The invention belongs to the technical field of gas cut-off valves, and discloses a gas cut-off valve cut-off trigger device which comprises a valve body, a valve cover is installed on the surface of the valve body in a hinged mode, a control wheel disc is arranged at the top end of the valve body, a sealing plug is arranged in an inner cavity of the valve body, and a cut-off mechanism is arranged in the inner cavity of the valve body. The cut-off mechanism comprises a positioning assembly and an adjusting assembly, a protection mechanism is arranged on the surface of the valve body and comprises a stop lever, a storage assembly and a control assembly, and the positioning assembly and the adjusting assembly are arranged to be matched with each other, so that the relative position of a sealing plug and an air guide hole can be conveniently adjusted; therefore, the opening and closing state of the inner cavity of the valve body can be adjusted, and the stability of the sealing plug during use is effectively improved. And through mutual cooperation of the storage assembly and the control assembly, the position of the control wheel disc can be limited, the situation that the position of the sealing plug deviates due to free rotation of the control wheel disc is effectively avoided, and the stability of the sealing plug is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of gas shut-off valve technology, specifically a gas shut-off valve shut-off triggering device. Background Technology

[0002] Gas is a general term for gaseous fuels that can burn and release heat for use by residents and industrial enterprises. Gas units are connected to gas sources through pipelines, which are equipped with shut-off valves. Gas shut-off valves are safety devices in gas pipeline projects that can cut off the flow of gas in the pipeline. Gas storage and transportation safety shut-off valves are important equipment that determines whether gas transportation is unimpeded.

[0003] In existing shut-off valves, springs and other elastic components are commonly used inside the valve body to control the sealing plug. Over prolonged use, the elasticity of these components gradually diminishes, making it impossible to effectively control the sealing plug and consequently, the valve's opening and closing. Furthermore, the rotating disc on the valve body lacks adequate protective measures, allowing it to rotate freely under external forces, thus affecting the position of the sealing plug within the valve body cavity. Summary of the Invention

[0004] The purpose of this invention is to provide a gas shut-off valve shut-off triggering device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A gas shut-off valve triggering device includes a valve body with a valve cover hinged to its surface. An inlet pipe is located on one side of the valve body, and an exhaust pipe is located on the other side. An air guide hole is formed inside the valve body, with its two ends connected to the inlet pipe and the exhaust pipe, respectively. A control wheel is located at the top of the valve body. A sealing plug is located within the valve body's inner cavity. A shut-off mechanism is located within the valve body's inner cavity, comprising a positioning component and an adjusting component. The positioning component is located within the valve body's inner cavity and controls the sealing plug to be positioned directly above the air guide hole. The adjusting component is located within the valve body and connected to the positioning component, adjusting the relative position of the sealing plug and the air guide hole. A protective mechanism is located on the surface of the valve body, comprising a stop rod, a receiving component, and a control component. The receiving component is located on the valve body's surface and controls the stop rod to be positioned below the control wheel. The control component is located on the valve cover's surface and adjusts the relative position of the stop rod and the control wheel.

[0006] As a further aspect of the present invention: the positioning component includes a vertical hole located directly above the air guide hole inside the valve body, an internal thread is provided on the inner side of the vertical hole, a telescopic column is provided inside the vertical hole, an external thread is provided on the surface of the telescopic column, the telescopic column is threadedly installed inside the vertical hole, and the bottom end of the telescopic column extends to the outside of the vertical hole and is fixedly connected to the sealing plug.

[0007] As a further aspect of the present invention: the adjusting assembly includes a guide rod rotatably mounted inside the valve body, a guide hole is provided inside the telescopic column, one end of the guide rod extends to the outside of the valve body and is fixedly connected to the control wheel, the other end of the guide rod extends into the guide hole, and a limiting part is provided in the guide hole to control the guide rod to slide and be installed in the guide hole in the vertical direction.

[0008] As a further aspect of the present invention: the limiting part includes a limiting groove formed on the side wall of the guide hole, a limiting block is fixedly installed on the side wall of the guide rod, and the limiting block is slidably installed in the limiting groove in the vertical direction.

[0009] As a further embodiment of the present invention: the storage assembly includes a storage cylinder fixedly installed on the surface of the valve body, the stop rod is disposed inside the storage cylinder, an upper magnetic ring is fixedly installed on the inner side wall of the storage cylinder, and a lower magnetic ring is fixedly installed at the bottom end of the side wall of the stop rod.

[0010] As a further aspect of the present invention: the control component includes a positioning strip with a stop bar extending to the outside of the storage cylinder and fixedly installed thereon; the valve cover surface has a transverse channel and a longitudinal groove, the longitudinal groove being perpendicular to the transverse channel.

[0011] As a further embodiment of the present invention: a second magnetic sheet is fixedly installed on the bottom wall of the longitudinal groove, and a first magnetic sheet is fixedly installed on the bottom wall of the positioning strip.

[0012] Compared with the prior art, the beneficial effects of the present invention are: by setting the positioning component and the adjustment component to cooperate with each other, the relative position of the sealing plug and the air guide hole can be conveniently adjusted, thereby adjusting the opening and closing state of the valve body cavity, effectively improving the stability of the sealing plug during use, and solving the problem that the elasticity of elastic components such as springs is prone to gradual decay, making it impossible to effectively control the sealing plug, and thus unable to effectively control the opening and closing of the valve body.

[0013] During use, by setting up the storage component and the control component to work together, the position of the control wheel can be restricted, effectively preventing the control wheel from rotating freely and causing the position of the sealing plug to shift. This effectively improves the stability of the sealing plug and solves the problem that the current valve body surface turntable lacks necessary protective measures, and the turntable is prone to rotating freely under external force, thus affecting the position of the sealing plug in the valve body cavity. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a gas shut-off valve triggering device provided in an embodiment of the present invention. Figure 1 .

[0015] Figure 2 This is a front view schematic diagram of a gas shut-off valve shut-off triggering device provided in an embodiment of the present invention.

[0016] Figure 3 This is a three-dimensional structural diagram of a gas shut-off valve triggering device provided in an embodiment of the present invention. Figure 2 .

[0017] Figure 4 This is a schematic diagram of the control wheel and its connection structure in a gas shut-off valve shut-off triggering device provided in an embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the sealing plug and its connection structure in a gas shut-off valve shut-off triggering device provided in an embodiment of the present invention.

[0019] Figure 6 for Figure 2 A magnified structural diagram of A in the diagram.

[0020] Figure 7 This is a three-dimensional structural diagram of the valve cover in a gas shut-off valve triggering device provided in an embodiment of the present invention. Figure 1 .

[0021] Figure 8 This is a three-dimensional structural diagram of the valve cover in a gas shut-off valve triggering device provided in an embodiment of the present invention. Figure 2 .

[0022] The components are: 1-valve body, 11-valve cover, 12-intake pipe, 13-exhaust pipe, 14-air guide hole, 2-control wheel, 4-sealing plug, 5-cut-off mechanism, 51-positioning component, 511-vertical hole, 512-telescopic column, 52-adjusting component, 521-guide hole, 522-guide rod, 523-limiting part, 5231-limiting groove, 5232-limiting block, 6-protection mechanism, 61-stop bar, 62-storage component, 621-storage cylinder, 622-upper magnetic ring, 623-lower magnetic ring, 63-control component, 631-positioning strip, 632-transverse channel, 633-longitudinal groove, 7-first magnetic piece, 8-second magnetic piece. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0024] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The diagram shown illustrates the structure of a gas shut-off valve triggering device according to an embodiment of the present invention. The device includes a valve body 1, a valve cover 11 hinged to the surface of the valve body 1, an inlet pipe 12 on one side of the valve body 1, an exhaust pipe 13 on the other side of the valve body 1, a guide hole 14 inside the valve body 1, with both ends of the guide hole 14 connected to the inlet pipe 12 and the exhaust pipe 13 respectively, a control wheel 2 at the top of the valve body 1, a sealing plug 4 inside the valve body 1, and a shut-off mechanism 5 inside the valve body 1. The shut-off mechanism 5 includes a positioning component 51 and an adjusting component 52. Located inside the valve body 1, the positioning component 51 controls the sealing plug 4 to be positioned directly above the air guide hole 14. The adjusting component 52 is located inside the valve body 1 and connected to the positioning component 51. The adjusting component 52 is used to adjust the relative position of the sealing plug 4 and the air guide hole 14. A protective mechanism 6 is provided on the surface of the valve body 1. The protective mechanism 6 includes a stop rod 61, a receiving component 62, and a control component 63. The receiving component 62 is located on the surface of the valve body 1 and is used to control the stop rod 61 to be positioned below the control wheel 2. The control component 63 is located on the surface of the valve cover 11 and is used to adjust the relative position of the stop rod 61 and the control wheel 2.

[0026] In use, the gas pipeline is connected to both ends of the valve body 1. The positioning component 51 positions the sealing plug 4 inside the valve body 1. Initially, the sealing plug 4 is separated from the air guide hole 14. When the gas moves inside the valve body 1, it passes through the inlet pipe 12, the air guide hole 14, and the exhaust pipe 13 in sequence. When it is necessary to cut off the gas supply, the valve cover 11 is opened, and the operator rotates the control wheel 2. The adjustment component 52 and the positioning component 51 work together to control the sealing plug 4 to move towards the air guide hole 14. After the sealing plug 4 contacts the surface of the air guide hole 14, the sealing plug 4 controls the air guide hole 14 to switch to a closed state, which can conveniently cut off the gas flow.

[0027] When the control wheel 2 rotates, the housing component 62 positions the stop rod 61 on the surface of the valve body 1. The stop rod 61 is positioned below the control wheel 2, effectively preventing interference with its rotation. After the sealing plug 4 moves to the appropriate position within the valve body 1, it covers the valve cover 11 onto the surface of the valve body 1. The control component 63 and housing component 62 work together to easily adjust the position of the stop rod 61. The stop rod 61 passes through the gap on the surface of the control wheel 2. During prolonged use, the stop rod 61 effectively prevents the control wheel 2 from rotating, thus preventing the sealing plug 4 from shifting within the valve body 1. When the gas is cut off, gas leakage at the gas inlet 14 is effectively prevented. When the gas is being supplied, blockage of the gas inlet 14 is effectively prevented from affecting gas flow.

[0028] like Figure 2 , Figure 4 , Figure 5 As shown, in a preferred embodiment of the present invention, the positioning component 51 includes a vertical hole 511 located directly above the air guide hole 14 inside the valve body 1. The vertical hole 511 has an internal thread, and a telescopic column 512 is provided inside the vertical hole 511. The surface of the telescopic column 512 has an external thread, and the telescopic column 512 is threadedly installed inside the vertical hole 511. The bottom end of the telescopic column 512 extends to the outside of the vertical hole 511 and is fixedly connected to the sealing plug 4.

[0029] The vertical hole 511 positions the telescopic column 512, and the telescopic column 512 positions the sealing plug 4. Initially, the sealing plug 4 is directly above the gas guide hole 14. When it is necessary to cut off the gas pipeline, the adjustment component 52 controls the telescopic column 512 to move vertically downward in the vertical hole 511. The telescopic column 512 drives the sealing plug 4 to move downward synchronously. After the sealing plug 4 and the gas guide hole 14 are in contact with each other, the sealing plug 4 controls the gas guide hole 14 to switch to the closed state.

[0030] like Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, in a preferred embodiment of the present invention, the adjusting component 52 includes a guide rod 522 rotatably mounted inside the valve body 1. A guide hole 521 is provided inside the telescopic column 512. One end of the guide rod 522 extends to the outside of the valve body 1 and is fixedly connected to the control wheel 2. The other end of the guide rod 522 extends into the guide hole 521. A limiting part 523 is provided in the guide hole 521. The limiting part 523 is used to control the guide rod 522 to slide vertically within the guide hole 521.

[0031] When it is necessary to control the valve body 1 to cut off the gas pipeline, open the valve cover 11, and the operator holds the control wheel 2 to rotate it. The control wheel 2 drives the guide rod 522 to rotate around its own axis. The guide rod 522 drives the telescopic column 512 to rotate synchronously around its own axis in the vertical hole 511. The telescopic column 512 and the vertical hole 511 are screwed together, and the telescopic column 512 can move in the vertical direction, thereby conveniently adjusting the height of the sealing plug 4.

[0032] like Figure 2 , Figure 4 , Figure 5 As shown, in a preferred embodiment of the present invention, the limiting part 523 includes a limiting groove 5231 opened on the side wall of the guide hole 521, and a limiting block 5232 is fixedly installed on the side wall of the guide rod 522. The limiting block 5232 is slidably installed in the limiting groove 5231 in the vertical direction.

[0033] When the guide rod 522 rotates, the limiting block 5232 and the limiting groove 5231 cooperate with each other to drive the telescopic column 512 to rotate synchronously. When the telescopic column 512 rotates, the limiting block 5232 moves vertically in the limiting groove 5231, which can conveniently control the telescopic column 512 to move synchronously in the vertical direction.

[0034] like Figure 2 , Figure 3 , Figure 6 As shown, in a preferred embodiment of the present invention, the storage assembly 62 includes a storage cylinder 621 fixedly mounted on the surface of the valve body 1, a stop rod 61 disposed inside the storage cylinder 621, an upper magnetic ring 622 fixedly mounted on the inner side wall of the storage cylinder 621, and a lower magnetic ring 623 fixedly mounted on the bottom end of the side wall of the stop rod 61.

[0035] Initially, the stop lever 61 is entirely inside the storage cylinder 621, and at this time, the stop lever 61 is below the control wheel 2. After the control wheel 2 rotates to the appropriate position, the stop lever 61 is pulled upward. After the lower magnetic ring 623 on the surface of the stop lever 61 is in contact with the upper magnetic ring 622, the upper magnetic ring 622 and the lower magnetic ring 623 are connected as a whole by magnetic attraction, thereby positioning the stop lever 61. At this time, the stop lever 61 is above the storage cylinder 621, and the valve cover 11 is placed on the surface of the valve body 1. The control component 63 can further fix the position of the stop lever 61. At this time, the stop lever 61 passes through the gap on the surface of the control wheel 2, and the stop lever 61 can restrict the control wheel 2, effectively preventing the control wheel 2 from rotating.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8As shown, in a preferred embodiment of the present invention, the control component 63 includes a positioning strip 631 whose top end of the stop bar 61 extends to the outside of the storage cylinder 621 and is fixedly installed. The valve cover 11 has a transverse channel 632 on its surface and a longitudinal groove 633 on its surface. The longitudinal groove 633 and the transverse channel 632 are perpendicular to each other.

[0037] The upper magnetic ring 622 and the lower magnetic ring 623 are connected as a whole by magnetic attraction, thereby positioning the stop rod 61. At this time, the stop rod 61 is above the storage cylinder 621. The stop rod 61 positions the positioning strip 631. When the valve cover 11 is closed, the positioning strip 631 passes through the transverse channel 632 and is positioned above the valve cover 11. After the valve cover 11 is closed, the positioning strip 631 is rotated and further pressed into the longitudinal groove 633. The positioning strip 631 and the valve cover 11 cooperate with each other to position the stop rod 61. The stop rod 61 passes through the gap on the surface of the control wheel 2 and can restrict the control wheel 2, effectively preventing the control wheel 2 from rotating.

[0038] like Figure 6 , Figure 7 , Figure 8 As shown, in a preferred embodiment of the present invention, a second magnetic sheet 8 is fixedly installed on the bottom wall of the longitudinal groove 633, and a first magnetic sheet 7 is fixedly installed on the bottom wall of the positioning strip 631.

[0039] The working principle of this invention is as follows: In use, the gas pipeline is connected to both ends of the valve body 1. The positioning component 51 positions the sealing plug 4 inside the valve body 1. Initially, the sealing plug 4 is separated from the air guide hole 14. When the gas moves within the valve body 1, it passes through the inlet pipe 12, the air guide hole 14, and the exhaust pipe 13 in sequence. When it is necessary to cut off the gas supply, the valve cover 11 is opened, and the operator rotates the control wheel 2. The control wheel 2 drives the guide rod 522 to rotate around its own axis. The guide rod 522 drives the telescopic column 512 to rotate synchronously around its own axis within the vertical hole 511. The telescopic column 512 and the vertical hole 511 are spirally driven, and the telescopic column 512 can move vertically, thereby conveniently adjusting the height of the sealing plug 4. After the sealing plug 4 and the air guide hole 14 are in contact, the sealing plug 4 controls the air guide hole 14 to switch to a closed state.

[0040] After the control wheel 2 is rotated to the appropriate position, the stop lever 61 is pulled upward. After the lower magnetic ring 623 on the surface of the stop lever 61 is in contact with the upper magnetic ring 622, the upper magnetic ring 622 and the lower magnetic ring 623 are connected as a whole by magnetic attraction, thus positioning the stop lever 61. At this time, the stop lever 61 is above the storage cylinder 621. The valve cover 11 is placed on the surface of the valve body 1. When the valve cover 11 is closed, the positioning strip 631 passes through the transverse channel 632 and is above the valve cover 11. After the valve cover 11 is closed, the positioning strip 631 is rotated and further pressed into the longitudinal groove 633. The positioning strip 631 and the valve cover 11 cooperate with each other to position the stop lever 61. The stop lever 61 passes through the gap on the surface of the control wheel 2 and can restrict the control wheel 2, effectively preventing the control wheel 2 from rotating, and thus effectively preventing the sealing plug 4 from shifting in position within the valve body 1. When the gas supply is cut off, it can effectively prevent gas leakage at the gas inlet 14. When the gas supply is in operation, it can effectively prevent blockage of the gas inlet 14 from affecting gas flow.

[0041] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A gas shut-off valve shut-off trigger device, comprising a valve body (1), a valve cover (11) hingedly mounted on the surface of the valve body (1), an air inlet pipe (12) provided on one side of the valve body (1), an exhaust pipe (13) provided on the other side of the valve body (1), an air guide hole (14) provided inside the valve body (1), the two ends of the air guide hole (14) being connected to the air inlet pipe (12) and the exhaust pipe (13) respectively, a control wheel (2) provided at the top of the valve body (1), and a sealing plug (4) provided in the inner cavity of the valve body (1), characterized in that, The valve body (1) is provided with a cutting mechanism (5) in its inner cavity. The cutting mechanism (5) includes a positioning component (51) and an adjustment component (52). The positioning component (51) is located in the inner cavity of the valve body (1) and is used to control the sealing plug (4) to be directly above the air guide hole (14); The adjustment component (52) is located inside the valve body (1) and connected to the positioning component (51). The adjustment component (52) is used to adjust the relative position of the sealing plug (4) and the air guide hole (14). The valve body (1) is provided with a protective mechanism (6), which includes a stop bar (61), a storage component (62) and a control component (63). The receiving component (62) is located on the surface of the valve body (1), and the receiving component (62) is used to control the stop lever (61) to be below the control wheel (2); The control component (63) is located on the surface of the valve cover (11) and is used to adjust the relative position of the stop lever (61) and the control wheel (2).

2. The gas shut-off valve shut-off triggering device according to claim 1, characterized in that, The positioning component (51) includes a vertical hole (511) located directly above the air guide hole (14) inside the valve body (1). The vertical hole (511) has an internal thread, and a telescopic column (512) is provided inside the vertical hole (511). The surface of the telescopic column (512) has an external thread. The telescopic column (512) is threaded into the vertical hole (511). The bottom end of the telescopic column (512) extends to the outside of the vertical hole (511) and is fixedly connected to the sealing plug (4).

3. The gas shut-off valve shut-off triggering device according to claim 2, characterized in that, The adjustment assembly (52) includes a guide rod (522) rotatably mounted inside the valve body (1). A guide hole (521) is provided inside the telescopic column (512). One end of the guide rod (522) extends to the outside of the valve body (1) and is fixedly connected to the control wheel (2). The other end of the guide rod (522) extends into the guide hole (521). A limiting part (523) is provided in the guide hole (521). The limiting part (523) is used to control the guide rod (522) to slide in the guide hole (521) in the vertical direction.

4. The gas shut-off valve triggering device according to claim 3, characterized in that, The limiting part (523) includes a limiting groove (5231) opened on the side wall of the guide hole (521), and a limiting block (5232) is fixedly installed on the side wall of the guide rod (522). The limiting block (5232) is slidably installed in the limiting groove (5231) in the vertical direction.

5. A gas shut-off valve shut-off triggering device according to claim 1, characterized in that, The storage assembly (62) includes a storage cylinder (621) fixedly installed on the surface of the valve body (1), a stop bar (61) is disposed inside the storage cylinder (621), an upper magnetic ring (622) is fixedly installed on the inner side wall of the storage cylinder (621), and a lower magnetic ring (623) is fixedly installed at the bottom end of the side wall of the stop bar (61).

6. A gas shut-off valve shut-off triggering device according to claim 5, characterized in that, The control component (63) includes a positioning strip (631) with the top of the stop bar (61) extending to the outside of the storage cylinder (621) and fixedly installed. The valve cover (11) has a transverse channel (632) on its surface and a longitudinal groove (633) on its surface. The longitudinal groove (633) is perpendicular to the transverse channel (632).

7. A gas shut-off valve triggering device according to claim 6, characterized in that, A second magnetic sheet (8) is fixedly installed on the bottom wall of the longitudinal groove (633), and a first magnetic sheet (7) is fixedly installed on the bottom wall of the positioning strip (631).

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