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CN-224229259-U - Quick turn-off electric fuel gas large-flow flip valve

CN224229259UCN 224229259 UCN224229259 UCN 224229259UCN-224229259-U

Abstract

The utility model discloses a quick-turn-off electric fuel gas large-flow flip valve, which relates to the field of fuel gas valves, and the technical scheme of the utility model 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 is covered on the valve port, one side of the valve cover is hinged with the valve port, a disengaging 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 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 power storage gear, the power storage gear is in rotary fit with a power storage shaft, and a torsion spring is arranged between the power storage shaft and the power storage gear. Can realize opening at a slow speed, quick shutoff, flip valve form, pressure loss is minimum after opening.

Inventors

  • LIU YANZE
  • YAO GUISHENG
  • YANG XINYUN
  • CHEN YAOZONG
  • YI WENJIE

Assignees

  • 刘彦泽

Dates

Publication Date
20260512
Application Date
20250613

Claims (7)

  1. 1. The quick-closing electric fuel gas large-flow flip valve is characterized by comprising a valve body (1), a valve cover (2), a motor (4), a screw (5), a moving piece (6) and a guide rail (7); The valve body (1) is provided with a valve port (3), the valve cover (2) covers the valve port (3), and one side of the valve cover (2) is hinged with the valve port (3); A disengaging mechanism is arranged between the motor (4) and the screw (5); The screw (5) is in threaded fit with a moving part (6), the guide rail (7) is arranged in parallel relative to the screw (5), the moving part (6) is in sliding fit with the guide rail (7), the moving part (6) is connected with the valve cover (2) through a linkage part (15), and the moving part (6) drives the valve cover (2) to cover or uncover the valve port (3); The screw (5) is coaxially provided with a driven gear (8), the driven gear (8) is meshed with a power storage gear (9), the power storage gear (9) is in rotary fit with a power storage shaft, and a torsion spring is arranged between the power storage shaft and the power storage gear (9); When the motor (4) rotates positively, the disengaging mechanism links the motor (4) and the screw (5), the moving part (6) uncovers the valve cover (2) through the linkage part (15), and the torsion spring stores force; When the motor (4) is reversed, the disconnecting mechanism disconnects the motor (4) and the screw (5), the torsion spring drives the screw (5) to reversely rotate, and the moving part (6) closes the valve cover (2) through the linkage part (15).
  2. 2. The quick-shut-off electric fuel gas high-flow flip valve according to claim 1, wherein the disengagement mechanism comprises a driving gear (10), a movable gear (11) and a driven gear (8), the driving gear (10) is driven by a motor (4), the driving gear (10) is arranged on a driving rotating shaft through a one-way bearing (13), the driving rotating shaft is fixed with one end of a swing arm (12), the movable gear (11) is rotatably matched with the other end of the swing arm (12), and the movable gear (11) is meshed with the driving gear (10); When the driving gear (10) rotates positively, the one-way bearing (13) is unlocked, and the movable gear (11) swings along with the swing arm (12) to approach and be meshed with the driven gear (8); When the driving gear (10) rotates reversely, the one-way bearing (13) is locked, and the driving gear (10) drives the swing arm (12) to swing so that the movable gear (11) is separated from the driven gear (8).
  3. 3. A quick shut off electric gas high flow flip valve as claimed in claim 2, characterized in that said motor (4) is coupled to said driving gear (10) by means of a speed reducer (16).
  4. 4. The quick-shut-off electric fuel gas high-flow flip valve according to claim 2, wherein the screw (5) is in rotary fit with the valve body (1), and the guide rail (7) is fixed on the valve body (1).
  5. 5. A quick shut off electric gas high flow flip valve as claimed in claim 2, characterized in that said guide rail (7) is a guide bar.
  6. 6. A quick shut-off electric gas high flow flip valve as claimed in claim 2, characterized in that said power accumulating shaft is fixed to said valve body (1).
  7. 7. The quick-shut-off electric fuel gas high-flow flip valve according to claim 1, wherein one end of the linkage member (15) is fixed on the moving member (6), the other end of the linkage member (15) extends to the valve cover (2), the valve cover (2) is provided with a strip-shaped hole (14), the other end of the linkage member (15) is provided with a pin hook, and the pin hook is adapted to the strip-shaped hole (14).

Description

Quick turn-off electric fuel gas large-flow flip valve Technical Field The utility model relates to the field of gas valves, in particular to a quick-turn-off electric gas high-flow flip valve. Background With the further development of the urban gas industry at present, various gas boilers, hotels and the like all need practical large-flow cut-off valves for matching with charging, explosion-proof and other systems to finish quick cutting off of conveying pipelines. However, most of the currently marketed shut-off valves need 220V mains supply for driving, and 24V dc power can be used for individual electrically operated valves, which is limited in use cases in battery-powered occasions, and most of the shut-off valves are in the form of plunger valves, which can generate large delivery pressure loss. Disclosure of utility model In order to solve the technical problems, the utility model provides the quick-turn-off electric fuel gas large-flow flip valve which can be opened slowly and turned off quickly, and has the flip valve form with extremely low pressure loss after opening. The utility model solves the technical problems by adopting the technical scheme that the quick-turn-off 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 is covered on the valve port, and one side of the valve cover is hinged with the valve port; A disengaging mechanism is arranged between the motor and the screw; The screw is in threaded fit with a moving part, the guide rail is arranged in parallel relative to the screw, the moving part is in sliding fit with the guide rail, the moving part is connected with the valve cover through a linkage part, and the moving part drives the valve cover to cover or uncover the valve port; The screw is coaxially provided with a driven gear, the driven gear is meshed with a power storage gear, the power storage gear is in running fit with a power storage shaft, and a torsion spring is arranged between the power storage shaft and the power storage gear; When the motor rotates positively, the disengaging mechanism links the motor and the screw rod, the moving part uncovers the valve cover through the linkage part, and the torsion spring stores force; When the motor rotates reversely, the disconnecting mechanism disconnects the motor and the screw rod, the torsion spring drives the screw rod to rotate reversely, and the moving part closes the valve cover through the linkage part. When the valve needs to be opened, the motor rotates positively, the screw is driven by the disengaging mechanism to rotate, the moving part is driven to slide on the guide rail, the moving part drives the valve cover to swing through the linkage part, the valve cover at the valve opening is opened, the opened power comes from the rotation of the motor, so that the opening action is relatively slower, and meanwhile, when the screw rotates, the driven gear drives the power storage gear to rotate, and the torsion spring is used for tightening the power storage. When the valve needs to be covered, the motor rotates reversely, at the moment, the disengaging mechanism is used for disconnecting the motor from the screw rod, the screw rod is not controlled by the motor any more, namely, the torsion spring is not controlled by the motor, the torsion spring releases the elasticity instantly, and the driven gear is driven to rotate through the power storage gear, so that the screw rod rotates at a remarkably faster speed, the moving part is driven to slide rapidly, and the valve port is closed through the linkage part control valve. Preferably, the disengaging mechanism comprises a driving gear, a movable gear and a driven gear, the driving gear is driven by a motor, the driving gear is arranged on a driving rotating shaft through a one-way bearing, the driving rotating shaft is fixed with one end of a swing arm, the other end of the swing arm is rotatably matched with the movable gear, and the movable gear is meshed with the driving gear; When the driving gear rotates positively, the one-way bearing is unlocked, and the movable gear swings along with the swing arm to approach and mesh with the driven gear; When the driving gear rotates reversely, the one-way bearing is locked, and the driving gear drives the swing arm to swing so that the movable gear is separated from the driven gear. When the motor drives the driving gear to rotate positively, although the one-way bearing is in an unlocking state, the driving gear and the swing arm are relatively movable, but as the driving gear can drive the movable gear to rotate, the movable gear can bring certain resistance to the driving gear, and the reactive force based on the resistance can drive the swing arm to do certain swing, so that the movable gear is close to and meshed with the driven gear under the swing of the swing arm, and the trans