Voltage regulator with electromagnetic cut-off function

Abstract

The utility model relates to the related technical field of gas pressure regulators, in particular to a pressure regulator with an electromagnetic cut-off function, which comprises a pressure regulator outer shell and a plugging mechanism, a valve port is formed on the pressure regulator outer shell, the plugging mechanism is arranged in the pressure regulator outer shell and can open and close the valve port, and the electromagnetic cut-off function is arranged on the valve port. The plugging mechanism comprises a movable part, one end of the movable part penetrates through the valve port and extends into the pressure regulator outer shell, the movable part can directionally move relative to the pressure regulator outer shell, and a sealing part is fixed to the part, located in the pressure regulator outer shell, of the movable part. The electromagnetic driving part is used for driving the movable part to move in the length direction of the movable part so as to drive the sealing part to move towards the valve port and seal the valve port. Through the sealing structure arranged in the forward direction, the problem that sealing between the sealing part and the valve port is poor due to the fact that air pressure is too high can be effectively solved; on the contrary, the sealing performance between the sealing piece and the valve port can be further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of gas pressure regulators, specifically a pressure regulator with an electromagnetic cut-off function. Background Technology

[0002] A gas pressure regulator is a device used to regulate gas pressure. Also known as a pressure reducing valve or gas pressure regulating valve, it is an automatic device that regulates the outlet pressure of gas, maintaining stable downstream pressure regardless of changes in upstream pressure and flow. Its main function is to convert high-pressure gas into suitable low-pressure gas, ensuring the safe, economical, and efficient operation of gas appliances. Gas pressure regulators play a crucial role in gas supply systems, especially in urban gas pipeline networks and residential gas systems.

[0003] Most traditional gas pressure regulators only have pressure regulation and overcurrent functions. When a gas leak occurs, they cannot automatically shut off the gas pipeline, which can cause personal injury or property damage to users. For some pressure regulators with shut-off functions, they use a "series" method, that is, external shut-off valves are connected to the front and rear ends of the pressure regulator. This scheme results in a long pressure regulator, which is prone to cylinder tipping accidents. Therefore, the electromagnetic shut-off function of existing pressure regulators is set at the outlet end of the pressure regulator and adopts a reverse structure design. In use, if the pressure inside the pressure regulator cavity is high, the electromagnetic shut-off function is prone to failure and opening, which can lead to high pressure leakage inside the pressure regulator and cause the risk of fire and explosion. Utility Model Content

[0004] The purpose of this invention is to provide a voltage regulator with an electromagnetic cut-off function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A voltage regulator with electromagnetic shut-off function includes a voltage regulator housing with a valve port formed thereon, and further includes a sealing mechanism disposed within the voltage regulator housing and capable of opening and closing the valve port, the sealing mechanism comprising:

[0007] A movable component, one end of which passes through the valve port and extends into the regulator housing, and is directionally movable relative to the regulator housing. A sealing element is fixed on the movable component located inside the regulator housing.

[0008] An electromagnetic drive is used to drive the movable part to move along its length direction, so as to move the sealing element toward the valve port and seal the valve port.

[0009] As described above, the voltage regulator with electromagnetic cut-off function includes a stationary iron core, on which an O-shaped groove is formed, and an inner sealing ring is fixedly sleeved within the groove.

[0010] As described above, the voltage regulator with electromagnetic cut-off function includes a connector, which is fixedly installed at one end of the stationary iron core inserted into the housing of the voltage regulator, and a sealing gasket is fixedly wrapped around the connector.

[0011] The voltage regulator with electromagnetic cut-off function as described above: an extension housing is fixedly provided on the outer shell of the voltage regulator, and the electromagnetic drive component is disposed inside the extension housing.

[0012] As described above, the voltage regulator with electromagnetic cut-off function includes an electromagnetic coil, which is disposed inside the extended housing and has one end penetrating through the extended housing and communicating with the outside.

[0013] It also includes a vertically moving member arranged along the axial direction of the electromagnetic coil, and the electromagnetic coil is capable of controlling the vertically moving member to move up and down within the extended housing.

[0014] As described above, the voltage regulator with electromagnetic cut-off function includes a moving iron core, and a stop is fixedly installed at the lower end of the moving iron core.

[0015] It also includes a spring, which is sleeved on the moving iron core. One end of the spring is connected to the inner end of the extended housing, and the other end is connected to the moving iron core.

[0016] As described above, the voltage regulator with electromagnetic cut-off function has the following configuration: one end of the stationary iron core extending into the extended housing passes through the moving iron core and extends into the stop, and a gap is formed between the lower end face of the stationary iron core and the stop.

[0017] As described above, a voltage regulator with electromagnetic cut-off function has a protective cover installed at the end of the extended housing away from the outer casing of the voltage regulator to protect the locking buckle.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] During the cutting process, the moving iron core, under the action of the spring force, travels a certain distance before acting on the stationary iron core. Relying on the impact force and elastic force of the spring, it overcomes the resistance of the O-ring seal on the stationary iron core, thereby driving the stationary iron core to move, thus solving the problem of poor cutting stability of the electromagnetic cutting structure.

[0020] The forward-oriented sealing structure effectively prevents poor sealing between the gasket and valve port caused by excessive air pressure. On the contrary, it can further increase the sealing performance between the gasket and valve port. The greater the pressure, the better the sealing performance between the gasket and valve port. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the timer unit activation structure in a voltage regulator with electromagnetic cutoff function.

[0022] Figure 2 This is a schematic diagram of the timer unit shutting down in a voltage regulator with electromagnetic cutoff function.

[0023] Figure 3 This is a schematic diagram of the electromagnetic cut-off structure in the engaged state of a voltage regulator with electromagnetic cut-off function.

[0024] Figure 4 This is a schematic diagram of the electromagnetic cut-off structure in the pop-up state of a voltage regulator with electromagnetic cut-off function.

[0025] In the diagram: 1. Connector; 2. Sealing gasket; 3. Valve port; 4. Stationary iron core; 5. Moving iron core; 6. Locking clip; 7. Protective cover; 8. Electromagnetic coil; 9. Inner sealing ring; 10. Outer sealing ring; 11. Spring. Detailed Implementation

[0026] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0027] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0028] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0029] Please see Figures 1-4 In this embodiment of the present invention, a voltage regulator with an electromagnetic cut-off function includes a voltage regulator housing, on which a valve port 3 is formed, and a sealing mechanism disposed within the voltage regulator housing and capable of opening and closing the valve port 3. The sealing mechanism includes:

[0030] A movable component, one end of which passes through the valve port 3 and extends into the regulator housing, and is directionally movable relative to the regulator housing. A sealing component is fixed on the movable component located inside the regulator housing.

[0031] An electromagnetic drive is used to drive the movable part to move along its length direction, so as to move the sealing element toward the valve port 3 and seal the valve port 3.

[0032] In detail, when a gas leak or other abnormal situation occurs, the electromagnetic drive in the electromagnetic cut-off structure will be energized. Under the action of the electromagnetic drive, the moving part is driven to overcome its own resistance and part of the impact force generated on the electromagnetic drive to move downward. This causes the sealing part to move downward synchronously with the moving part, so as to further increase the contact between the sealing part and the valve port 3. This allows the valve port 3 to be automatically sealed when a gas leak or other abnormal situation occurs.

[0033] As a further embodiment of this invention, the movable component includes a stationary iron core 4, on which an O-shaped groove is formed, and an inner sealing ring 9 is fixedly sleeved within the groove.

[0034] The sealing element includes a connector 1, which is fixedly installed at one end of the stationary iron core 4 that is inserted into the housing of the voltage regulator, and a sealing gasket 2 is fixedly wrapped around the outside of the connector 1.

[0035] Preferably, a connector is provided between the extension housing and the regulator housing, and an outer sealing ring 10 is provided on the connector.

[0036] In addition: an extension housing is fixedly installed on the outer shell of the voltage regulator, and the electromagnetic drive component is installed inside the extension housing.

[0037] As a further embodiment of this utility model, the electromagnetic drive component includes an electromagnetic coil 8, which is disposed inside the extended housing and has one end penetrating through the extended housing and communicating with the outside.

[0038] It also includes a vertically moving member arranged along the axial direction of the electromagnetic coil 8, and the electromagnetic coil 8 is capable of controlling the vertically moving member to move up and down within the extended housing.

[0039] The vertical moving component includes a moving iron core 5, and a stop 6 is fixedly installed at the lower end of the moving iron core 5;

[0040] It also includes a spring 11, which is sleeved on the moving iron core 5. One end of the spring 11 is connected to the inner end of the extended housing, and the other end is connected to the moving iron core 5.

[0041] Preferably, one end of the stationary iron core 4 that extends into the extended housing passes through the moving iron core 5 and extends into the stop 6, and a gap is formed between the lower end face of the stationary iron core 4 and the stop 6. This gap is mainly set to buffer the impact force on the stationary iron core 4 when the moving iron core 5 moves downward, and to protect the normal operation of the electromagnet assembly.

[0042] The end of the extended housing away from the outer casing of the voltage regulator is equipped with a protective cover 7 to protect the buckle 6.

[0043] Initially, there is a gap between the lower end face of the stationary iron core 4 and the retainer 6. When the electromagnetic coil 8 is energized, it generates a magnetic force on the moving iron core 5. Under the action of the electromagnetic force and the elastic force of the spring 11, the moving iron core 5 can be driven to move the retainer 6 downwards a distance A (see [reference]). Figure 3 At this point, the lower end face of the stationary iron core 4 can abut against the stop 6. After that, when the stop 6 continues to move down, it can drive the stationary iron core 4 to move synchronously. At the same time, the downward movement of the stationary iron core 4 also needs to overcome the resistance of the inner sealing ring 9 so as to drive the sealing gasket 2 on the connector 1 to seal the valve port 3, so that the valve port 3 can be automatically sealed when gas leakage occurs.

[0044] The use of the magnetic force generated by the electromagnetic coil 8 on the moving iron core 5 and the elastic force of the spring 11 to drive the stationary iron core 4 to move downward can effectively prevent the resistance of the inner sealing ring 9 from being too large, thus preventing the electromagnetic cutting structure from being unable to cut, thereby improving the reliability of the electromagnetic cutting structure.

[0045] Please see Figure 1 and Figure 4 When valve 3 is opened, pressing the stop 6 causes it to move upward a distance B. At this point, the stop 6 contacts the stationary iron core 4. Pressing the stop 6 further separates the sealing gasket 2 from the valve port 3, making the valve port 3 open. Pressing the stop 6 further compresses the spring 11 until the moving iron core 5 is attracted to the electromagnetic coil 8, allowing the regulator to resume normal ventilation.

[0046] It should be noted that when the pressure regulator is in the closed state, the gas pressure inside the regulator chamber acts on connector 1. Therefore, the greater the gas pressure inside the regulator chamber, the more it compresses the sealing gasket 2 and connector 1, causing them to move downwards. This increases the sealing performance between the sealing gasket 2 and the valve port 3. This forward-oriented sealing structure effectively prevents poor sealing between the sealing gasket 2 and the valve port 3 due to excessive gas pressure. On the contrary, it further enhances the sealing performance between the sealing gasket 2 and the valve port 3. The higher the pressure, the better the sealing performance between the sealing gasket 2 and the valve port 3.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A voltage regulator with electromagnetic cut-off function, comprising a voltage regulator housing, wherein a valve port (3) is formed on the voltage regulator housing, characterized in that, It also includes a sealing mechanism disposed within the housing of the pressure regulator and capable of opening and closing the valve port (3), the sealing mechanism comprising: A movable part, one end of which passes through the valve port (3) and extends into the regulator housing, and is directionally movable relative to the regulator housing. A sealing element is fixed on the movable part located in the regulator housing. An electromagnetic drive is used to drive the movable part to move along its length direction, so as to move the sealing element toward the valve port (3) and seal the valve port (3).

2. A voltage regulator with electromagnetic cut-off function according to claim 1, characterized in that, The movable component includes a stationary iron core (4), on which an O-shaped groove is formed, and an inner sealing ring (9) is fixedly sleeved inside the groove.

3. A voltage regulator with electromagnetic cut-off function according to claim 2, characterized in that, The sealing element includes a connector (1), which is fixedly installed at one end of the stationary iron core (4) inserted into the housing of the voltage regulator, and a sealing gasket (2) is fixedly wrapped around the connector (1).

4. A voltage regulator with electromagnetic cut-off function according to claim 2, characterized in that, An extension housing is fixedly installed on the outer shell of the voltage regulator, and the electromagnetic drive component is disposed inside the extension housing.

5. A voltage regulator with electromagnetic cut-off function according to claim 4, characterized in that, The electromagnetic drive component includes an electromagnetic coil (8), which is disposed inside the extended housing and has one end penetrating through the extended housing and communicating with the outside. It also includes a vertically moving member arranged along the axial direction of the electromagnetic coil (8), and the electromagnetic coil (8) is capable of controlling the vertically moving member to move up and down within the extended housing.

6. A voltage regulator with electromagnetic cut-off function according to claim 5, characterized in that, The vertical moving part includes a moving iron core (5), and a buckle (6) is fixedly installed at the lower end of the moving iron core (5); It also includes a spring (11), which is sleeved on the moving iron core (5). One end of the spring (11) is connected to the inner end of the extended housing, and the other end is connected to the moving iron core (5).

7. A voltage regulator with electromagnetic cut-off function according to claim 6, characterized in that, One end of the stationary iron core (4) extends into the extended housing, passes through the moving iron core (5), and extends into the stop (6), with a gap formed between the lower end face of the stationary iron core (4) and the stop (6).

8. A voltage regulator with electromagnetic cut-off function according to claim 6, characterized in that, The end of the extended housing away from the outer casing of the voltage regulator is equipped with a protective cover (7) to protect the buckle (6).

Images