Voltage regulator with electromagnetic cut-off function

Abstract

The invention 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, a valve port is formed in the pressure regulator outer shell, the pressure regulator further comprises a plugging mechanism which is arranged in the pressure regulator outer shell and can open and close the valve port, and the plugging mechanism comprises a movable part, an electromagnetic cut-off device and a control device, one end of the movable part penetrates through the valve port, extends into the pressure regulator outer shell and 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] The invention relates to the technical field related to gas pressure regulators, in particular to a pressure regulator with an electromagnetic cut-off function. Background Art

[0002] A gas pressure regulator is a device used to regulate gas pressure, also known as a pressure reducing valve or a gas pressure regulating valve. It is a device that automatically adjusts the gas outlet pressure and can keep the downstream pressure stable regardless of changes in upstream pressure and flow. Its main function is to convert high-pressure gas into suitable low-pressure gas to ensure the safe, economical and efficient operation of gas equipment. Gas pressure regulators play a vital role in gas supply systems, especially in urban gas pipeline networks and household gas systems.

[0003] Most traditional gas pressure regulators only have pressure regulation and overcurrent functions. When a gas leak occurs, they cannot automatically cut off the gas pipeline, causing casualties or property losses to users. For some pressure regulators with a cut-off function, they use a "series" method, that is, external cut-off valves are connected to the front and rear ends of the pressure regulator. This solution causes the pressure regulator to be longer and prone to cylinder tipping accidents. Therefore, the electromagnetic cut-off function of the existing pressure regulator is set at the outlet of the pressure regulator, and a reverse structure design is adopted. When the reverse structure design is used, once the pressure in the pressure regulator cavity is high, the electromagnetic cut-off function is prone to fail and open, causing the high pressure in the pressure regulator to leak easily, causing the risk of fire and explosion. Summary of the invention

[0004] The object of the present invention is to provide a voltage regulator with an electromagnetic cut-off function to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A voltage regulator with an electromagnetic cut-off function comprises a voltage regulator outer shell, a valve port is formed on the voltage regulator outer shell, and a blocking mechanism is arranged in the voltage regulator outer shell and can open and close the valve port, the blocking mechanism comprises:

[0007] A movable part, one end of which passes through the valve port and extends into the outer shell of the pressure regulator, and is capable of directional movement relative to the outer shell of the pressure regulator, and a sealing part is fixed on the movable part located in the outer shell of the pressure regulator;

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

[0009] As described above, the voltage regulator with electromagnetic cut-off function: the movable part comprises a static iron core, a groove arranged in an O-shaped structure is formed on the static iron core, and an inner sealing ring is fixedly sleeved in the groove.

[0010] As described above, in the voltage regulator with electromagnetic cut-off function: the sealing member comprises a joint, the joint is fixedly mounted on one end of the static iron core inserted into the outer shell of the voltage regulator, and the outside of the joint is fixedly wrapped with a sealing gasket.

[0011] As described above, for the voltage regulator with electromagnetic cut-off function: an extension shell is fixedly arranged on the outer shell of the voltage regulator, and the electromagnetic driving component is arranged in the extension shell.

[0012] The voltage regulator with electromagnetic cut-off function as described above: the electromagnetic driving part comprises an electromagnetic coil, the electromagnetic coil is arranged in the extension shell and one end of the electromagnetic coil passes through the extension shell and communicates with the outside;

[0013] It also includes a vertical moving member arranged along the axial direction of the electromagnetic coil, and the electromagnetic coil can control the vertical moving member to move up and down in the extension shell.

[0014] The voltage regulator with electromagnetic cut-off function as described above: the vertical moving part comprises a moving iron core, and a stopper 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 extension shell, and the other end is connected to the moving iron core.

[0016] As described above, in the voltage regulator with electromagnetic cut-off function, one end of the static iron core extending into the extension shell passes through the moving iron core and extends into the stop buckle, and a gap is formed between the lower end surface of the static iron core and the stop buckle.

[0017] As for the voltage regulator with electromagnetic cut-off function as described above: a protective cover for protecting the stopper is installed at one end of the extension shell away from the outer shell of the voltage regulator.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

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

[0020] The forward-arranged sealing structure can effectively prevent the poor sealing between the sealing gasket and the valve port caused by excessive air pressure. On the contrary, it can further increase the sealing between the sealing gasket and the valve port. The greater the pressure, the better the sealing between the sealing gasket and the valve port. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the timer unit opening structure in a voltage regulator with electromagnetic cut-off function.

[0022] Figure 2 The schematic diagram of the structure of closing the timer unit in the voltage regulator with electromagnetic cut-off function.

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

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

[0025] In the figure: 1. joint; 2. sealing gasket; 3. valve port; 4. static iron core; 5. moving iron core; 6. buckle; 7. protective cover; 8. electromagnetic coil; 9. inner sealing ring; 10. outer sealing ring; 11. spring. DETAILED DESCRIPTION

[0026] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0027] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0028] In addition, in order to better illustrate the present application, numerous specific details are provided in the specific embodiments below. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0029] See also Figure 1 to Figure 4 In an embodiment of the present invention, a voltage regulator with an electromagnetic cut-off function includes a voltage regulator outer shell, a valve port 3 is formed on the voltage regulator outer shell, and a blocking mechanism is provided in the voltage regulator outer shell and can open and close the valve port 3, and the blocking mechanism includes:

[0030] A movable part, one end of which passes through the valve port 3 and extends into the outer shell of the pressure regulator, and can be directional moved relative to the outer shell of the pressure regulator, and a sealing part is fixed on the movable part located in the outer shell of the pressure regulator;

[0031] The electromagnetic driving member is used to drive the movable member to move along its length direction, so as to drive the sealing member to move 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 component in the electromagnetic cut-off structure will be energized. Under the action of the electromagnetic drive component, the movable part will be driven to overcome its own resistance and part of the impact force generated on the electromagnetic drive component to move downward, so that the sealing part moves downward synchronously with the downward movement of the movable part, so as to further increase the contact between the sealing part and the valve port 3, so that when a gas leak or other abnormal situation occurs, the valve port 3 can be automatically sealed.

[0033] As a further solution of the present invention, the movable part comprises a static iron core 4, a groove in an O-shaped structure is formed on the static iron core 4, and an inner sealing ring 9 is fixedly sleeved in the groove.

[0034] The sealing member comprises a joint 1 , which is fixedly mounted on one end of the static iron core 4 inserted into the outer shell of the voltage regulator, and a sealing gasket 2 is fixedly wrapped around the outside of the joint 1 .

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

[0036] In addition, an extension shell is fixedly arranged on the outer shell of the voltage regulator, and the electromagnetic driving component is arranged in the extension shell.

[0037] As a further solution of the present invention, the electromagnetic driving member includes an electromagnetic coil 8, which is arranged in the extension shell and one end of which passes through the extension shell and communicates with the outside;

[0038] It also includes a vertical moving member arranged along the axial direction of the electromagnetic coil 8, and the electromagnetic coil 8 can control the vertical moving member to move up and down in the extension shell.

[0039] The vertical moving member comprises a moving iron core 5, and a stopper 6 is fixedly mounted on 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 extension shell, and the other end is connected to the moving iron core 5 .

[0041] Preferably, one end of the static iron core 4 extending into the extended shell passes through the moving iron core 5 and extends into the stop buckle 6, and a gap is formed between the lower end surface of the static iron core 4 and the stop buckle 6. The setting of this gap is mainly to buffer the impact force exerted on the static iron core 4 when the moving iron core 5 moves downward, thereby protecting the normal operation of the electromagnet assembly.

[0042] A protective cover 7 for protecting the stopper 6 is installed at one end of the extension shell away from the outer shell of the voltage regulator.

[0043] In the initial state, there is a gap between the lower end surface of the static iron core 4 and the stopper 6, so that when the electromagnetic coil 8 is energized, the electromagnetic coil 8 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 drive the stopper 6 to move downward for a distance A (see Figure 3 ), at this time, the lower end surface of the static iron core 4 can abut against the stop buckle 6. Thereafter, when the stop buckle 6 continues to move downward, it can drive the static iron core 4 to move synchronously. At the same time, the downward movement of the static iron core 4 also needs to overcome the resistance of the inner sealing ring 9 to drive the sealing gasket 2 on the joint 1 to seal the valve port 3, so that when a gas leak occurs, the valve port 3 can be automatically blocked.

[0044] Among them, the magnetic force generated by the electromagnetic coil 8 on the moving iron core 5 and the elastic force of the spring 11 are used to drive the static iron core 4 to move downward, which can effectively prevent the resistance of the inner sealing ring 9 from being too large, causing the electromagnetic cutting structure to be unable to cut off, thereby improving the reliability of the electromagnetic cutting structure.

[0045] See also Figure 1 and Figure 4 When the valve 3 is opened, the stop buckle 6 is pressed to move upward a distance B. At this time, the stop buckle 6 contacts the static iron core 4. The stop buckle 6 is further pressed to separate the sealing gasket 2 from the valve port 3. At this time, the valve port 3 is conductive. On this basis, the stop buckle 6 is further pressed to compress the spring 11 until the moving iron core 5 and the electromagnetic coil 8 are attracted, so that the voltage regulator resumes normal ventilation.

[0046] It should be noted that when the pressure regulator is in the closed state, the gas pressure in the pressure regulator cavity will act on the joint 1. Therefore, the greater the gas pressure in the pressure regulator cavity, the more the sealing gasket 2 and the joint 1 are squeezed downward, so that the sealing performance between the sealing gasket 2 and the valve port 3 is improved. This forward-set sealing structure can effectively prevent the sealing problem between the sealing gasket 2 and the valve port 3 caused by excessive gas pressure. On the contrary, it can further increase the sealing performance between the sealing gasket 2 and the valve port 3. The greater 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 the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A voltage regulator with electromagnetic cut-off function, comprising a voltage regulator outer shell, wherein a valve port (3) is formed on the voltage regulator outer shell, characterized in that: It also includes a blocking mechanism which is arranged in the outer shell of the pressure regulator and is capable of opening and closing the valve port (3), and the blocking mechanism includes: A movable part, one end of which passes through the valve port (3) and extends into the outer shell of the pressure regulator, and is capable of directional movement relative to the outer shell of the pressure regulator, and a sealing part is fixed on the movable part located in the outer shell of the pressure regulator; The electromagnetic driving member is used to drive the movable member to move along its length direction, so as to drive the sealing member to move towards 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 part comprises a static iron core (4), a groove arranged in an O-shaped structure is formed on the static iron core (4), and an inner sealing ring (9) is fixedly sleeved in the groove.

3. A voltage regulator with electromagnetic cut-off function according to claim 2, characterized in that: The sealing component comprises a joint (1), wherein the joint (1) is fixedly mounted on one end of the static iron core (4) inserted into the outer shell of the voltage regulator, and a sealing gasket (2) is fixedly wrapped around the outside of the joint (1).

4. A voltage regulator with electromagnetic cut-off function according to claim 2, characterized in that: An extension shell is fixedly arranged on the outer shell of the voltage regulator, and the electromagnetic driving component is arranged in the extension shell.

5. A voltage regulator with electromagnetic cut-off function according to claim 4, characterized in that: The electromagnetic driving component comprises an electromagnetic coil (8), the electromagnetic coil (8) is arranged in the extension shell and one end of the electromagnetic coil (8) passes through the extension shell and is connected to the outside; It also comprises a vertical moving part arranged along the axial direction of the electromagnetic coil (8), and the electromagnetic coil (8) can control the vertical moving part to move up and down in the extension shell.

6. A voltage regulator with electromagnetic cut-off function according to claim 5, characterized in that: The vertical moving member comprises a moving iron core (5), and a stopper (6) is fixedly mounted on 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 extension shell, 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 static iron core (4) extending into the extension shell penetrates the movable iron core (5) and extends into the stop buckle (6), and a gap is formed between the lower end surface of the static iron core (4) and the stop buckle (6).

8. The voltage regulator with electromagnetic cut-off function according to claim 6, characterized in that: A protective cover (7) for protecting the stopper (6) is installed at one end of the extension shell away from the voltage regulator outer shell.

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