Electric fuel gas high-flow flip valve capable of being turned off quickly

Abstract

The utility model discloses an electric fuel gas large-flow flip valve capable of being turned off quickly, which relates to the field of fuel gas valves, and adopts the technical scheme that the electric fuel gas large-flow flip valve comprises a valve body, a valve cover, a motor, a screw rod, a moving part and a guide rail, the valve body is provided with a valve port, the valve cover covers the valve port, and one side of the valve cover is hinged to the valve port; a disengagement mechanism is arranged between the motor and the screw rod; the screw rod is in threaded fit with a moving part, the moving part is in sliding fit with the guide rail, and the moving part is connected with the valve cover through a linkage part; the screw rod is coaxially provided with a driven gear, the driven gear is meshed with a force storage gear, the force storage gear is rotationally matched with a force storage shaft, and a torsional spring is arranged between the force storage shaft and the force storage gear. Slow opening and quick closing can be realized, and the pressure loss is extremely small after the valve is opened in a flip valve form.

Description

Technical Field

[0001] This utility model relates to the field of gas valves, and in particular to a fast-shutdown electric gas high-flow flip-top valve. Background Technology

[0002] With the further development of the urban gas industry, various gas boilers, hotels, and other establishments require the use of high-flow shut-off valves to work with billing and explosion-proof systems to quickly shut off the transmission pipelines.

[0003] However, most shut-off valves currently on the market require 220V AC mains power to drive, while some electric valves can also use 24V DC power. Their application in battery-powered applications is limited, and most of them are plunger valves, which will result in a large loss of delivery pressure. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a fast-closing electric gas high-flow-rate flip-top valve, which can be opened slowly and closed quickly. The flip-top valve has minimal pressure loss after opening.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a fast-closing electric gas high-flow flip-top valve, including a valve body, a valve cover, a motor, a screw, a moving part and a guide rail;

[0006] The valve body is provided with a valve port, the valve cover is fitted onto the valve port, and one side of the valve cover is hinged to the valve port;

[0007] A disengagement mechanism is provided between the motor and the screw;

[0008] The screw is threadedly fitted with a movable component, the guide rail is arranged in parallel with the screw, the movable component is slidably fitted with the guide rail, and the movable component is connected to the valve cover through a linkage component. The movable component drives the valve cover to close or open the valve port.

[0009] The screw is coaxially provided with a driven gear, which meshes with a power storage gear. The power storage gear is rotatably coupled to a power storage shaft, and a torsion spring is provided between the power storage shaft and the power storage gear.

[0010] When the motor rotates forward, the disengagement mechanism links the motor and the screw, and the moving part opens the valve cover through the linkage, while the torsion spring stores force.

[0011] When the motor reverses, the disengagement mechanism disconnects the motor and the screw, the torsion spring drives the screw to rotate in the opposite direction, and the moving part closes the valve cover through the linkage.

[0012] When the valve needs to be opened, the motor rotates forward, driving the screw through the disengagement mechanism. The screw rotates, causing the moving part to slide on the guide rail. The moving part drives the valve cover to swing through the linkage, thus opening the valve cover at the valve port. The power to open comes from the rotation of the motor, so the opening action is relatively slow. At the same time, when the screw rotates, the driven gear drives the storage gear to rotate, and the torsion spring tightens and stores the force.

[0013] When the valve needs to be closed, the motor reverses. At this time, the disengagement mechanism will disconnect the motor from the screw, and the screw will no longer be controlled by the motor. That is, the torsion spring will also be no longer controlled by the motor. The torsion spring will release its elastic force instantly and quickly drive the driven gear to rotate through the storage gear. Therefore, the screw will rotate at a significantly faster speed, quickly driving the moving parts to slide, and then controlling the valve through the linkage to close the valve port.

[0014] Preferably, the disengagement mechanism includes a drive gear, a movable gear, and a driven gear. The drive gear is driven by a motor and is mounted on a drive shaft via a one-way bearing. The drive shaft is fixed to one end of the swing arm, and the movable gear is rotatably engaged with the other end of the swing arm. The movable gear meshes with the drive gear.

[0015] When the driving gear rotates forward, the one-way bearing unlocks, and the movable gear swings with the swing arm to approach and mesh with the driven gear.

[0016] When the driving gear reverses, the one-way bearing locks, and the driving gear drives the swing arm to swing, causing the movable gear to separate from the driven gear.

[0017] When the motor drives the drive gear to rotate forward, although the one-way bearing is in the unlocked state and the drive gear and the swing arm are relatively movable, the drive gear will also drive the movable gear to rotate. The movable gear will bring a certain resistance to the drive gear. Based on the reaction force of this resistance, the swing arm can be driven to swing to a certain extent, so that the movable gear moves closer to the driven gear and meshes under the swing of the swing arm, thereby realizing the transmission of the driven gear and the screw.

[0018] When the motor drives the drive gear to reverse, the one-way bearing is locked. The rotation of the drive gear will drive the swing arm to reverse as well, causing the movable gear to move away from the driven gear. This disconnects the linkage with the driven gear, and the motor stops rotating after the movable gear and the driven gear are separated.

[0019] Preferably, the motor is linked to the drive gear via a reducer. This allows for better control of the rotation amplitude and enables the valve cover to open slowly.

[0020] Preferably, the screw is rotatably fitted to the valve body, and the guide rail is fixed to the valve body. This facilitates control of the sliding of the moving parts.

[0021] Preferably, the guide is a guide rod.

[0022] Preferably, the energy storage shaft is fixed to the valve body. This facilitates the rotation of the energy storage gear and the energy storage of the torsion spring.

[0023] Preferably, one end of the linkage is fixed to the moving member, and the other end of the linkage extends to the valve cover. The valve cover has a slotted hole, and the other end of the linkage is provided with a pin, which is adapted to the slotted hole. The position of the linkage relative to the moving member does not change, therefore the slotted hole and the pin are used to facilitate the swinging of the valve cover.

[0024] The beneficial effects of this utility model are:

[0025] Because this design incorporates a torsion spring and a disengagement mechanism, the power source during the opening process comes from the motor, and the power source during the closing process comes from the torsion spring. This allows for slow opening and rapid closing, and the flip-top valve design results in minimal pressure loss after opening. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only two of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0028] Figure 2 This is a schematic diagram showing the relative positions of the driven gear, the energy storage gear, the driving gear, and the movable gear in an embodiment of this utility model.

[0029] The components are as follows: 1. Valve body; 2. Valve cover; 3. Valve port; 4. Motor; 5. Screw; 6. Moving part; 7. Guide rail; 8. Driven gear; 9. Storage gear; 10. Drive gear; 11. Movable gear; 12. Swing arm; 13. One-way bearing; 14. Strip hole; 15. Linkage part; 16. Reducer. Detailed Implementation

[0030] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0031] Example

[0032] like Figure 1As shown, a fast-closing electric gas high-flow-rate flip-top valve includes a valve body 1, a valve cover 2, a motor 4, a screw 5, a moving part 6, and a guide rail 7. The valve body 1 is provided with a valve port 3, and the valve cover 2 covers the valve port 3, with one side of the valve cover 2 hinged to the valve port 3. A disengagement mechanism is provided between the motor 4 and the screw 5. The screw 5 is threadedly engaged with the moving part 6, and the guide rail 7 is arranged parallel to the screw 5. The moving part 6 is slidably engaged with the guide rail 7, and the moving part 6 is connected to the valve cover 2 through a linkage 15. The moving part 6 drives the valve cover 2 to close or close. The valve port 3 is opened; a driven gear 8 is coaxially arranged on the screw 5, the driven gear 8 meshes with the storage gear 9, the storage gear 9 is rotatably engaged with the storage shaft, and a torsion spring is arranged between the storage shaft and the storage gear 9; when the motor 4 rotates forward, the disengagement mechanism links the motor 4 and the screw 5, the moving part 6 opens the valve cover 2 through the linkage 15, and the torsion spring stores power; when the motor 4 rotates in reverse, the disengagement mechanism disconnects the motor 4 and the screw 5, the torsion spring drives the screw 5 to rotate in the opposite direction, and the moving part 6 closes the valve cover 2 through the linkage 15.

[0033] When the valve needs to be opened, the motor 4 rotates forward, and drives the screw 5 through the disengagement mechanism. The screw 5 rotates, causing the moving part 6 to slide on the guide rail 7. The moving part 6 drives the valve cover 2 to swing through the linkage 15, thereby opening the valve cover 2 at the valve port 3. The power to open comes from the rotation of the motor 4, so the opening action is relatively slow. At the same time, when the screw 5 rotates, the driven gear 8 drives the storage gear 9 to rotate, and the torsion spring will tighten and store the force.

[0034] When the valve needs to be closed, motor 4 reverses. At this time, the disengagement mechanism disconnects motor 4 from screw 5, and screw 5 is no longer controlled by motor 4. This means the torsion spring is also no longer controlled by motor 4. The torsion spring instantly releases its elastic force, quickly driving the driven gear 8 to rotate via the storage gear 9. Therefore, screw 5 rotates at a significantly faster speed, rapidly driving the moving part 6 to slide, and then controlling the valve to close valve port 3 via the linkage 15. In the attached diagram of this scheme, the valve port 3 is tilted to facilitate the closing of the valve cover 2.

[0035] The disengagement mechanism includes a drive gear 10, a movable gear 11, and a driven gear 8. The drive gear 10 is driven by a motor 4 and is mounted on a drive shaft via a one-way bearing 13. The drive shaft is fixed to one end of a swing arm 12, and the other end of the swing arm 12 is rotatably engaged with the movable gear 11. The movable gear 11 meshes with the drive gear 10. When the drive gear 10 rotates forward, the one-way bearing 13 is unlocked, and the movable gear 11 swings closer to and meshes with the driven gear 8 as the swing arm 12 swings. When the drive gear 10 rotates in reverse, the one-way bearing 13 is locked, and the drive gear 10 drives the swing arm 12 to swing, causing the movable gear 11 to separate from the driven gear 8.

[0036] When the motor 4 drives the drive gear 10 to rotate forward, although the one-way bearing 13 is in the unlocked state and the drive gear 10 and the swing arm 12 are relatively movable, the drive gear 10 will also drive the movable gear 11 to rotate. The movable gear 11 will bring a certain resistance to the drive gear 10. Based on the reaction force of this resistance, the swing arm 12 can be driven to swing to a certain extent, so that the movable gear 11 moves closer to the driven gear 8 and meshes under the swing of the swing arm 12, thereby realizing the transmission of the driven gear 8 and the screw 5.

[0037] When the motor 4 drives the drive gear 10 to reverse, since the one-way bearing 13 is in a locked state, the rotation of the drive gear 10 will drive the swing arm 12 to reverse as well, causing the movable gear 11 to move away from the driven gear 8, thereby disconnecting the linkage with the driven gear 8. After the movable gear 11 separates from the driven gear 8, the motor 4 stops rotating.

[0038] In order to facilitate the engagement of the movable gear 11 with the driven gear 8 when it moves with the swing arm 12, the driven gear 8 needs to be positioned on the swing path of the movable gear 11.

[0039] The motor 4 is linked to the drive gear 10 via the reducer 16. This allows for better control of the rotation amplitude and enables the valve cover 2 to open slowly.

[0040] The screw 5 is rotatably fitted to the valve body 1, and the guide rail 7 is fixed to the valve body 1. This facilitates the control of the sliding of the moving part 6. The guide rail is a guide rod.

[0041] The energy storage shaft is fixed to the valve body 1. This facilitates the rotation of the energy storage gear 9 and allows for energy storage by the torsion spring.

[0042] One end of the linkage 15 is fixed to the moving part 6, and the other end of the linkage 15 extends to the valve cover 2. The valve cover 2 is provided with a strip-shaped hole 14, and the other end of the linkage 15 is provided with a pin, which is adapted to the strip-shaped hole 14. The position of the linkage 15 relative to the moving part 6 will not change, so the strip-shaped hole 14 and the pin are used to facilitate the swinging of the valve cover 2.

[0043] The beneficial effects of this utility model are:

[0044] Because this design incorporates a torsion spring and a disengagement mechanism, the power source during the opening process comes from motor 4, and the power source during the closing process comes from the torsion spring. This allows for slow opening and rapid closing, and the flip-top valve design results in minimal pressure loss after opening.

[0045] This embodiment uses 6V DC power (such as four ordinary dry batteries) to drive the valve opening and rapid closing actions. The motor 4 is a 6V permanent magnet DC motor, capable of operating at a maximum pipeline pressure of 1 kg / cm² and a maximum pipe diameter of 150 mm, making it widely applicable to urban gas pipeline network management. It can be integrated with metering and billing systems, safety detection systems, etc., to achieve remote automatic valve opening and rapid shut-off. Furthermore, due to its flip-top valve design, the gas pressure loss is extremely low, making it particularly suitable for applications sensitive to pressure loss, and ideal for integration with high-flow gas meters used in the hotel and catering industries to form a gas billing system.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fast-closing, high-flow-rate electric gas flip valve, characterized in that, It includes a valve body (1), a valve cover (2), a motor (4), a screw (5), a moving part (6), and a guide rail (7); The valve body (1) is provided with a valve port (3), and the valve cover (2) covers the valve port (3). One side of the valve cover (2) is hinged to the valve port (3). A disengagement mechanism is provided between the motor (4) and the screw (5); The screw (5) is threaded with a movable part (6), and the guide rail (7) is arranged in parallel with the screw (5). The movable part (6) is slidably engaged with the guide rail (7). The movable part (6) is connected to the valve cover (2) through a linkage (15). The movable part (6) drives the valve cover (2) to close or open the valve port (3). The screw (5) is coaxially provided with a driven gear (8), which meshes with a power storage gear (9). The power storage gear (9) is rotatably engaged with a power storage shaft, and a torsion spring is provided between the power storage shaft and the power storage gear (9). When the motor (4) rotates forward, the disengagement mechanism links the motor (4) and the screw (5), and the moving part (6) opens the valve cover (2) through the linkage part (15), and the torsion spring stores power. When the motor (4) reverses, the disengagement mechanism disconnects the motor (4) and the screw (5), the torsion spring drives the screw (5) to rotate in the opposite direction, and the moving part (6) closes the valve cover (2) through the linkage (15).

2. The fast-shutdown electric gas high-flow-rate flip-top valve according to claim 1, characterized in that: The disengagement mechanism includes a drive gear (10), a movable gear (11), and a driven gear (8). The drive gear (10) is driven by a motor (4). The drive gear (10) is mounted on the drive shaft via a one-way bearing (13). The drive shaft is fixed to one end of the swing arm (12). The other end of the swing arm (12) is rotatably engaged with the movable gear (11). The movable gear (11) meshes with the drive gear (10). When the driving gear (10) rotates forward, the one-way bearing (13) is unlocked, and the movable gear (11) swings closer to and meshes with the driven gear (8) as the swing arm (12) swings. When the driving gear (10) reverses, the one-way bearing (13) locks, and the driving gear (10) drives the swing arm (12) to swing, causing the moving gear (11) to separate from the driven gear (8).

3. The fast-shutdown electric gas high-flow-rate flip-top valve according to claim 2, characterized in that: The motor (4) is linked to the drive gear (10) via a reducer (16).

4. The fast-shutdown electric gas high-flow-rate flip-top valve according to claim 2, characterized in that: The screw (5) is rotatably fitted to the valve body (1), and the guide rail (7) is fixed to the valve body (1).

5. The fast-shutdown electric gas high-flow-rate flip-top valve according to claim 2, characterized in that: The guide rail (7) is a guide rod.

6. The fast-shutdown electric gas high-flow-rate flip-top valve according to claim 2, characterized in that: The energy storage shaft is fixed to the valve body (1).

7. The fast-shutdown electric gas high-flow-rate flip-top valve according to claim 1, characterized in that: One end of the linkage (15) is fixed to the moving part (6), and the other end of the linkage (15) extends to the valve cover (2). The valve cover (2) is provided with a strip hole (14), and the other end of the linkage (15) is provided with a pin, which is adapted to the strip hole (14).

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