Electromagnetic signal transverse seismic shut-off valve

Abstract

The electromagnetic signal transverse earthquake cut-off valve is a valve which can automatically close the pipeline when earthquake occurs, and can be remotely controlled to cut off and output feedback signal in daily use. The electromagnetic signal transverse earthquake cut-off valve comprises an earthquake sensor, a main valve body, an electromagnetic drive execution device and a signal feedback device, wherein the earthquake sensor is arranged on the upper end of the main valve body; the electromagnetic drive execution device is tightly arranged on the upper cover of the outer side of the earthquake sensor; the magnet induction sensor is fixed on one end of the main valve body and vertically faces the position of the upper end of the movable rod when the valve is closed. When the earthquake comes, the earthquake sensor is triggered to close the valve; if the remote triggering is needed, the electromagnetic drive execution device is powered to trigger the earthquake sensor to close the valve, and the signal feedback device gives a feedback signal to inform the receiving signal end that the valve has been closed. The above steps achieve the purpose of automatic triggering in earthquake and remote closing by electricity.

Description

Technical Field

[0001] This utility model valve relates to an electromagnetic signal transverse earthquake shut-off valve that not only automatically shuts off flammable or toxic gas pipelines to prevent leakage of media in the pipeline when an earthquake occurs, but also allows for remote electric control and output of switch feedback signals during daily use. Background Technology

[0002] During an earthquake, seismic waves can damage pipelines carrying flammable or toxic gases, causing leaks. The consequences of leaks in flammable gas distribution pipelines during an earthquake are particularly dire, potentially leading to massive fires and endangering lives. Therefore, government offices, factories, companies, residential buildings, and other areas at risk of flammable gas leaks due to earthquakes require valves that can shut off flammable or toxic gas pipelines during an earthquake.

[0003] In the absence of an earthquake, because the installation location of the earthquake valve is far away or relatively hidden, and the earthquake shut-off valve may be completely covered after the construction site is completed, it is very inconvenient to shut down the pipeline with the earthquake shut-off valve. Therefore, a remotely shut-off earthquake valve is needed. Utility Model Content

[0004] The technical problem to be solved by this utility model valve is that it can close the valve when there is significant shaking during an earthquake, cut off the flammable gas or toxic and harmful gas in the pipeline, prevent the flow of the medium, and can be remotely controlled to close and return the valve status signal.

[0005] The electromagnetic signal transverse seismic shut-off valve includes a seismic sensor, a main valve body connected to a gas pipeline, an electromagnetic drive actuator, and a signal feedback device. The seismic sensor is located on the upper end of the main valve body, and its structural details are as follows: The seismic sensor includes a top cover, a steel ball, a steel ball limiting component, a force sensing structure, a movable rod, and a valve disc; the steel ball is located on the steel ball limiting component, and a force sensing structure is located around the steel ball limiting component. The force sensing structure is connected to a rotatable force transmission rod, which is shaped like a "7". A movable rod is located at the lower end of the force transmission rod. One end of the movable rod is fixed to the main valve body via a rotating shaft, and the other end overlaps the bottom of the force transmission rod. A valve disc corresponding to the pipeline on the main valve body is located on the movable rod.

[0006] As a preferred embodiment, an elastic reset structure is provided between the lower end of the force sensing structure and the main valve body. This elastic reset structure can be a spring, a sheet, or other similar structure. The force sensing structure is arranged around the steel ball limiting component. When an earthquake occurs, the steel ball shakes on the steel ball limiting component, triggering the force sensing structure around the steel ball limiting component. The force sensing structure then presses down, driving the force transmission rod to work.

[0007] As another preferred embodiment, the tactile transmission rod has a 7-shaped structure. One end of the tactile transmission rod is connected to the tactile sensing structure via a shaft. A rotating shaft is fixedly installed at the upper end of the tactile transmission rod. Both ends of the rotating shaft can be fixed inside the upper cover or installed on the main valve body through a support structure. The tactile transmission rod can rotate around the rotating shaft. When the tactile sensing structure is pressed down, the tactile transmission rod rotates around the rotating shaft by a certain arc, causing the movable rod attached to the lower end of the tactile transmission rod to disengage.

[0008] As another preferred embodiment, a movable rod retaining component corresponding to the movable rod is provided on the rotating shaft, and a torsion spring is surrounded around the rotating shaft. One end of the torsion spring is set on the rotating shaft, and the other end is set on the main valve body. A slotted groove is provided on the rotating shaft. After the movable rod is triggered, the rotating shaft can be turned by a screwdriver or other tools. The movable rod retaining component on the rotating shaft drives the movable rod to rotate back to its original position, so that the electromagnetic signal transverse seismic shut-off valve returns to its initial state.

[0009] As another preferred embodiment, the electromagnetic drive actuator includes an electromagnetic protective housing, an electromagnetic coil, and a metal column. The lower curvature of the electromagnetic drive actuator matches the curvature of the clamp that secures the top cover of the seismic sensor, allowing the protective housing and clamp of the electromagnetic drive actuator to be fixed together to the main valve body. The electromagnetic coil is housed inside the electromagnetic protective housing; the coil is hollow, allowing the metal column to fit perfectly. By design, the axis of the metal column is aligned with the steel ball. When power is supplied to the electromagnetic drive actuator, the metal column generates a strong magnet, causing the steel ball to displace. During this process, the triggering rod is activated, driving the movable rod.

[0010] As another preferred embodiment, the signal feedback device includes a signal feedback housing and a magnetic induction sensor. The signal feedback housing is shaped to fit snugly against the top cover of the seismic sensor. The magnetic induction sensor is fixed to the end of the main valve body near the movable rod, vertically facing the upper end of the movable rod when the valve is closed. Using the rotation axis as a marker, the movable rod can be divided into an upper and lower part; the lower part is fixed to the valve disc, and a magnet can be placed on the upper part of the movable rod. When the valve is not activated, the magnet on the upper part of the movable rod is relatively far from the top cover of the seismic sensor. After the valve is activated, the movable rod rotates along the rotation axis, bringing the magnet closer to the magnetic induction sensor of the signal feedback device, thus providing a feedback signal.

[0011] As another preferred embodiment, the valve disc corresponds to the gas outlet side of the main valve body; when an earthquake occurs, the earthquake sensing device is triggered, causing the valve disc to fall and lock inside the pipe of the main valve body. Because the pressure at the inlet is greater than the pressure at the outlet, the valve disc is pressed tightly against the opening inside the valve body, thereby achieving the purpose of shutting off the gas supply.

[0012] The beneficial effects of this utility model are as follows: This utility model provides an electromagnetic signal transverse earthquake shut-off valve. During an earthquake, a steel ball senses and vibrates. As the steel ball sways left and right, it contacts and presses down on the force-sensing structure. The force-sensing structure moves downward, driving the 7-shaped force-transmitting rod downward. The lower end of the 7-shaped force-transmitting rod moves upward, disengaging from the movable rod. The movable rod, around the connecting shaft, rotates downward about the axis of rotation due to the spring's restoring force. This causes the valve disc to engage with the main valve body's pipe opening, reducing gas loss and minimizing the risk of secondary hazards from leaks of toxic or harmful gases. Furthermore, this earthquake shut-off valve can be remotely activated and outputs a valve action feedback signal. Attached Figure Description

[0013] Figure 1 This is a transverse cross-sectional view of the center of the electromagnetic signal transverse seismic shut-off valve; Figure 2 This is a vertical cross-sectional view of the center of the electromagnetic signal transverse seismic shut-off valve.

[0014] In the schematic diagram of this utility model: 1—Main valve body, 2—Upper cover, 3—Steel ball, 4—Clamp, 5—Electromagnetic protection shell, 6—Electromagnetic coil, 7—Metal column, 8—Touch sensing structure, 9—Steel ball limiting component, 10—Signal feedback shell, 11—Rotating shaft, 12—Magnetic induction sensor, 13—Spring plate, 14—Touch transmission rod, 15—Rotating shaft locking component, 16—Locking rod, 17—Valve disc, 18—Moving rod. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] See Figure 2 This electromagnetic signal transverse seismic shut-off valve is designed for use when the flow direction of gas or other media is horizontal. It is a normally open valve. Simply connect the valve to the pipeline; either a flange or threaded connection is acceptable.

[0018] See Figure 1The electromagnetic signal transverse earthquake shut-off valve includes an earthquake sensor, a main valve body connected to a flammable gas or toxic gas pipeline, an electromagnetic drive actuator, and a signal feedback device. The earthquake sensor is located at the opening at the upper end of the main valve body. The earthquake sensor includes a cover that covers the opening at the upper end of the main valve body. Inside the cover are a steel ball, a steel ball limiting component, a force sensing structure, a movable rod, and a valve disc. The steel ball is placed on the steel ball limiting component, which has a groove at its upper end. A force sensing component is arranged around the steel ball limiting component, and the force sensing component is connected to a rotatable force transmission rod. An elastic reset structure, such as a spring or sheet, is provided between the lower end of the force sensing structure and the main valve body. The force sensing structure surrounds the steel ball limiting component. When an earthquake occurs, the steel ball shakes on the steel ball limiting component, triggering the force sensing structure around the steel ball limiting component. The force sensing structure then presses down, causing the force transmission rod to operate. A movable rod is provided at the lower end of the tactile transmission rod. The tactile transmission rod has a "7" shaped structure. One end of the tactile transmission rod is connected to the tactile sensing structure via a shaft. A rotating shaft is fixedly installed at the upper end of the tactile transmission rod, allowing the tactile transmission rod to rotate around the rotating shaft. When the tactile sensing structure is pressed down, the tactile transmission rod rotates around the rotating shaft by a certain arc, causing the movable rod attached to the lower end of the tactile transmission rod to detach. One end of the movable rod is fixed to the main valve body via a connecting shaft, and the other end is attached to the bottom of the tactile transmission rod. A valve disc corresponding to the pipeline on the main valve body is provided on the movable rod, and the valve disc is connected to the movable rod via a valve disc connector. Under the action of gravity and the elastic force of the spring, the detached valve disc falls around the rotation axis, blocking the gas flow channel of the main valve body.

[0019] See Figure 2 When the valve disc is set on the side of the gas outlet, because the pressure in the direction of the gas inlet is greater than the pressure in the direction of the gas outlet, the valve disc is pressed tightly against the opening in the main valve body, thereby achieving the purpose of shutting off the gas supply.

[0020] The mechanism for restoring the movable rod is as follows: A movable rod retaining component corresponding to the movable rod is provided on the rotating shaft. A torsion spring surrounds the rotating shaft, with one end of the torsion spring on the rotating shaft and the other end on the main valve body. A slotted groove is provided on the rotating shaft. After the movable rod is triggered, the rotating shaft can be turned with a screwdriver or other tools. The movable rod retaining component on the rotating shaft drives the movable rod, thereby rotating the movable rod back to its original position and restoring the electromagnetic signal transverse seismic shut-off valve to its initial state.

[0021] Under non-earthquake conditions, to close the valve, the lower arc of the electromagnetic actuator matches the arc of the clamp securing the seismic sensor cover. This allows the protective housing of the electromagnetic shut-off valve device to be fixed to the main valve body along with the clamp. An electromagnetic coil is placed inside the electromagnetic protective housing. The coil is hollow, allowing a metal column to fit perfectly. The axis of the metal column is designed to align with the steel ball. When power is supplied to the electromagnetic shut-off valve device, the metal column generates a strong magnet, causing the steel ball to displace. This displacement triggers the force-operated rod, which in turn moves the movable rod, thus closing the valve.

[0022] The signal feedback housing is designed to snap into the top cover of the seismic sensor. The magnetic sensor is fixed to the main valve body near the movable rod, vertically facing the upper end of the movable rod when the valve is closed. The movable rod can be divided into upper and lower parts, marked by the rotation axis. The lower part is fixed to the valve disc, and the upper part can hold the magnet. When the valve is closed, the magnet on the upper part of the movable rod is relatively far from the top cover of the seismic sensor. After the valve is opened, the movable rod rotates along the rotation axis, bringing the magnet closer to the magnetic sensor of the signal feedback device, thus providing a feedback signal.

[0023] Electromagnetic drive actuators and signal feedback devices are optional; the transverse seismic shut-off valve can be equipped with any one or two of these devices depending on the site conditions or requirements.

[0024] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An electromagnetic signal transverse seismic shut-off valve, comprising a seismic sensor, a main valve body connected to a gas pipeline, an electromagnetic drive actuator, and a signal feedback device, wherein the seismic sensor is disposed on the upper end of the main valve body, and the seismic sensor includes an upper cover, a steel ball, a steel ball limiting component, a force sensing structure, a movable rod, and a valve disc; the steel ball is disposed on the steel ball limiting component, and a force sensing structure is disposed around the steel ball limiting component, the force sensing structure including a rotatable force transmission rod, the force transmission rod being L-shaped, a movable rod being disposed at the lower end of the force transmission rod, one end of the movable rod being fixed to the main valve body via a connecting shaft, and the other end being attached to the bottom of the force transmission rod, and a valve disc corresponding to the pipeline on the main valve body being disposed on the movable rod; the electromagnetic drive actuator is disposed beside the upper cover of the seismic sensor, characterized in that: The electromagnetic drive actuator includes an electromagnetic protective housing, an electromagnetic coil, and a metal column. The electromagnetic protective housing has the same fixing structure as the seismic sensor cover fixing clamp, which can tightly fasten the electromagnetic protective housing to the outer surface of the cover. The electromagnetic coil is placed inside the electromagnetic protective housing, and the metal column is placed in the middle of the electromagnetic coil, so that the electromagnet is facing the steel ball of the seismic sensor. The signal feedback device is located on the side of the seismic sensor cover and close to the movable rod. The signal feedback device includes a signal feedback housing and a magnetic induction sensor. The signal feedback housing is made into a shape that can be tightly fastened to the seismic sensor cover, and the magnetic induction sensor is fixed to the main valve body end close to the movable rod.

2. The electromagnetic signal transverse seismic shut-off valve according to claim 1, characterized in that: An elastic reset structure is provided between the lower end of the tactile sensing structure and the main valve body. The tactile transmission rod has a 7-shaped structure. One end of the tactile transmission rod is connected to the tactile sensing structure via a shaft, and a rotating shaft is fixedly provided at the upper end of the tactile transmission rod. The two ends of the rotating shaft can be fixed inside the upper cover or set on the main valve body through a support structure. A movable rod locking component corresponding to the movable rod is provided on the connecting shaft, and a torsion spring is surrounded on the outside of the connecting shaft. One end of the torsion spring is set on the connecting shaft, and the other end is set on the main valve body. A straight groove is provided on the connecting shaft for easy positioning.

3. The electromagnetic signal transverse seismic shut-off valve according to claim 1, characterized in that: An electromagnetic drive actuator is equipped with an electromagnetic coil, and a metal column is installed in the middle of the electromagnetic coil. The metal column is directly opposite the steel ball in the earthquake sensor. When the electromagnetic drive actuator is powered, the metal column generates a strong magnet, causing the steel ball to move. In this process, the force transmission rod is triggered, which drives the movable rod.

4. The electromagnetic signal transverse seismic shut-off valve according to claim 1, characterized in that: After the tactile sensing structure is triggered, it separates from the movable rod, causing the movable rod to rotate under the influence of the spring torque.

5. The electromagnetic signal transverse seismic shut-off valve according to claim 1, characterized in that: A magnet is installed on the upper part of the movable rod. After the electromagnetic drive actuator is activated, the movable rod rotates, causing the magnet to approach the signal feedback device and provide a feedback signal.

6. The electromagnetic signal transverse seismic shut-off valve according to claim 1, characterized in that: The valve disc corresponds to the air outlet side of the main valve body.

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