Pressure regulator with linkage cut-off function

Abstract

The utility model relates to pressure regulator technical field, concretely is a kind of pressure regulator of linkage cut-off function, including pressure regulator body;Cut-off unit is arranged in the inlet air pipe of pressure regulator body;Cut-off unit includes sealing element and moving element;Sealing element is arranged in the inlet air pipe, and moving element is movably arranged in the inlet air pipe;Sealing element is provided with plugging element in front end;Reset mechanism and linkage cut-off mechanism are movably arranged on the pressure regulator body;When normal ventilation, moving element is abutted on linkage cut-off mechanism, and moving element is not sealed between inlet air pipe;By setting linkage cut-off mechanism in the inlet joint interior, this makes the pressure regulator structure, compared with ordinary pressure regulator no new leakage point, and sealing performance is better;Linkage cut-off and overcurrent cut-off structure are independently more simple, and the volume is smaller design, and the reset mechanism of overcurrent cut-off and linkage cut-off is set as a set of system, and this design is not only cut-off high reliability, and reset operation is simple, and design is more reasonable.

Description

Technical Field

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

[0002] A pressure regulator is a special valve installed on the cylinder valve of a gas cylinder. Its function is to maintain a stable downstream pressure by automatically changing the opening of the regulator's valve port, regardless of changes in upstream gas pressure and flow. Because many users do not have the habit of closing the cylinder valve, the regulator remains active even when the gas appliance is off. This can easily lead to gas leaks in the pipeline, posing a safety hazard to users.

[0003] It is evident that the valve ports of the existing linkage cut-off and overcurrent cut-off functions of the linkage cut-off voltage regulator use the same mechanism, while the reset mechanisms for overcurrent cut-off and linkage cut-off are independent structures. This design not only reduces the safety of the cut-off but also increases the complexity of the reset. Summary of the Invention

[0004] The purpose of this utility model is to provide a pressure regulator with a linkage cut-off function, so as to solve the problem mentioned in the background art that the valve port of the existing linkage cut-off pressure regulator uses the same mechanism for the linkage cut-off function and the overcurrent cut-off function, which not only reduces the safety of the cut-off but also increases the complexity of the reset.

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

[0006] A voltage regulator with a linkage cut-off function includes a voltage regulator body;

[0007] A cut-off unit is provided inside the inlet air pipe of the pressure regulator body; the cut-off unit includes a sealing element and a movable element; the sealing element is disposed inside the inlet air pipe, and the movable element is movably disposed inside the inlet air pipe;

[0008] A sealing element is provided at the front end of the sealing element; a reset mechanism and a linkage cut-off mechanism are movably provided on the pressure regulator body;

[0009] When ventilation is normal, the movable part abuts against the linkage cut-off mechanism, and there is no seal between the movable part and the inlet air pipe;

[0010] When there is an overflow, the plug and the seal are pressed together to form a seal;

[0011] When the overcurrent is cut off and reset, the reset mechanism is driven to move, and the reset mechanism drives the movable part to move toward the sealing part, thereby pushing the sealing part out of the sealing part;

[0012] When the linkage is cut off, the linkage cutting mechanism moves, the movable part separates from the linkage cutting mechanism and moves in a direction away from the sealing part until the movable part is squeezed and sealed with the inlet air pipe;

[0013] When the linkage cut-off reset is activated, the reset mechanism is driven to move. At the same time, the reset mechanism drives the movable part to move toward the seal, and the reset mechanism drives the linkage cut-off mechanism to move and reset until the movable part abuts against the linkage cut-off mechanism.

[0014] Optionally, the sealing element includes: a shut-off valve and a flow-through sealing ring;

[0015] The shut-off valve is disposed inside the inlet air pipe, and a sealing ring is provided between the shut-off valve and the inlet air pipe; the overflow sealing ring is disposed at the end of the shut-off valve and is used to press and seal against the sealing member during overflow.

[0016] The movable component is movably disposed inside the shut-off valve and slides with the shut-off valve. A shut-off sealing gasket is provided on the side wall of the movable component. When the valve is shut off in a coordinated manner, the movable component moves away from the sealing component until the shut-off sealing gasket is squeezed and sealed with the shut-off valve.

[0017] Optionally, the movable component includes: a cutting push rod, a spring, and a retaining ring for the hole;

[0018] The cutting push rod is movably disposed inside the cutting valve and slides with the cutting valve; the hole retaining ring is fixed inside the cutting valve; one end of the spring is connected to the hole retaining ring and the other end is connected to the cutting push rod, for driving the cutting push rod to move in a direction away from the flow sealing ring; the cutting sealing gasket is disposed on the side wall of the cutting push rod.

[0019] Optionally, the sealing element is a flow-through structure.

[0020] Optionally, the flow passage structure can be a steel ball flow passage structure or a spring and umbrella-shaped flow passage structure.

[0021] Optionally, the reset mechanism includes: a reset button, a reset spring, and a pin;

[0022] A long through hole is provided on the reset button, and the pin passes through the long through hole and is connected to the voltage regulator body; the pin is used to limit the movement stroke of the reset button.

[0023] The reset spring is sleeved on the outside of the reset button and is used to apply force to the reset button to reset it; a first sealing ring is provided on the side wall of the reset button.

[0024] A slope is formed at the bottom end of the reset button, and the reset button drives the movable part to move toward the seal through the slope;

[0025] When the linkage cut-off resets, the bottom inclined surface of the reset button drives the movable part to move toward the seal, and at the same time, the bottom of the reset button drives the linkage cut-off mechanism to move and reset until the movable part abuts against the linkage cut-off mechanism.

[0026] Optionally, the voltage regulator body includes a lower housing, and the linkage cutting mechanism is disposed within the lower housing; the linkage cutting mechanism includes: a cutting top rod, a second sealing ring, a gasket, and a one-way holding electromagnet;

[0027] A one-way holding electromagnet is disposed inside the lower housing; the cutting rod is inserted through the electromagnet;

[0028] The second sealing ring is coaxially sleeved on the outside of the cutting top rod; the gasket is connected to the lower housing and is located above the second sealing ring; the cutting top rod passes through the gasket and is movably engaged with the gasket;

[0029] The end of the cutting rod has a protrusion for abutting the end of the movable part, and a clearance hole is formed below the protrusion.

[0030] During the linkage cutting, the electromagnet of the one-way holding type is energized, and the electromagnet pushes out the cutting rod; the cutting rod moves so that the movable part is inserted into the clearance hole, so that the movable part is separated from the linkage cutting mechanism and moves in the direction away from the seal.

[0031] Optionally, an indicator button is provided on the regulator body.

[0032] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a pressure regulator with a linkage cut-off function, including a pressure regulator body; a cut-off unit is provided in the inlet air pipe of the pressure regulator body; the cut-off unit includes a sealing element and a movable element; the sealing element is disposed in the inlet air pipe, and the movable element is movably disposed in the inlet air pipe; a blocking element is provided at the front end of the sealing element; a reset mechanism and a linkage cut-off mechanism are movably disposed on the pressure regulator body; when normal airflow occurs, the movable element abuts against the linkage cut-off mechanism, and there is no seal between the movable element and the inlet air pipe; when overflow occurs, the blocking element and the sealing element... The system employs a compression sealing mechanism. When the overcurrent cut-off is reset, the reset mechanism moves, causing the movable part to move towards the sealing element, thereby pushing the sealing element off the sealing element. When the linkage cut-off is performed, the linkage cut-off mechanism moves, separating the movable part from the linkage cut-off mechanism and moving away from the sealing element until the movable part is compressed and sealed against the inlet pipe. When the linkage cut-off is reset, the reset mechanism moves, causing the movable part to move towards the sealing element while simultaneously moving the linkage cut-off mechanism to reset until the movable part abuts against the linkage cut-off mechanism. By placing the linkage cut-off mechanism inside the inlet connector, the regulator structure has no new leakage points compared to ordinary regulators, resulting in better sealing performance. The independent design of the linkage cut-off and overcurrent cut-off structures simplifies the overall structure and reduces the size of the regulator. By integrating the overcurrent cut-off, linkage cut-off, and reset mechanism into a single system, the reset mechanism can reset both the overcurrent cut-off and linkage cut-off, simplifying the reset operation and making the design more rational. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the normal operating state of a voltage regulator with a linkage cut-off function;

[0034] Figure 2 This is a schematic diagram of the overcurrent cut-off state structure of a voltage regulator with linkage cut-off function.

[0035] Figure 3 This is a schematic diagram of the linkage cut-off state structure of a voltage regulator with linkage cut-off function.

[0036] Figure 4 This is a schematic diagram of the cutting unit;

[0037] Figure 5 This is a schematic diagram of the reset button.

[0038] Figure 6 This is a schematic diagram of the cutting top rod structure;

[0039] In the attached diagram: 1. Lower housing, 2. Sealing component, 3. Inlet air pipe, 4. Cut-off unit, 5. First sealing ring, 6. Pin, 7. Reset button, 8. Reset spring, 9. Cut-off push rod, 10. Second sealing ring, 11. Electromagnet, 12. Gasket, 13. Indicator button, 4-1. Cut-off valve, 4-2. Sealing ring, 4-3. Cut-off push rod, 4-4. Cut-off sealing gasket, 4-5. Spring, 4-6. Hole retaining ring, 4-7. Flow sealing ring, 14. Protrusion, 15. Clearance hole, 16. Long through hole, 17. Sloping surface. Detailed Implementation

[0040] 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.

[0041] 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.

[0042] 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.

[0043] Please see Figures 1-6 In this embodiment of the utility model, a pressure regulator with a linkage cut-off function includes a pressure regulator body; a cut-off unit 4 is provided in the inlet air pipe 3 of the pressure regulator body; the cut-off unit 4 includes a sealing element and a movable element; the sealing element is provided in the inlet air pipe 3, and the movable element is movably provided in the inlet air pipe 3; a sealing element 2 is provided at the front end of the sealing element; a reset mechanism and a linkage cut-off mechanism are movably provided on the pressure regulator body.

[0044] In this embodiment, the aforementioned sealing element 2 can be a structure in the form of steel ball flow or a structure of spring and umbrella-shaped flow plate; this application does not limit it.

[0045] In practical use, the voltage regulator with linkage cut-off function provided in this embodiment has the following usage states:

[0046] When normal ventilation is in operation, the movable part abuts against the linkage cut-off mechanism, and there is no seal between the movable part and the inlet air pipe 3. Specifically, when the linkage cut-off mechanism is in the ventilation state, it is in a magnetic attraction state. At this time, the end of the linkage cut-off mechanism abuts against the end of the movable part, so that the movable part is not sealed with the inlet air pipe 3. When the gas flow is normal, the pressure regulator is in normal working condition.

[0047] When there is an overflow, the plug 2 and the seal are squeezed and sealed. Specifically, an overflow means that the gas flow rate into the regulator exceeds a predetermined value. At this time, driven by the flow rate, the plug 2 is blown up. At this time, the plug 2 and the end of the seal are squeezed and sealed. Thus, when there is an overflow, the plug 2 squeezes and seals the seal, thereby cutting off the inlet gas pipe 3.

[0048] Furthermore, the aforementioned sealing component 2 can be a steel ball, such as... Figure 2 As shown, when the regulator flow exceeds the overcurrent cutoff setting, an overcurrent cutoff occurs, the steel ball is blown up and sticks to the seal, thus cutting off the regulator.

[0049] When the overcurrent is cut off and reset, the reset mechanism is manually driven to move. The reset mechanism drives the movable part to move toward the sealing part 2, thereby pushing the sealing part 2 off the sealing part. Specifically, the driving method between the reset mechanism and the movable part can be a direct drive. For example, an inclined surface 17 is provided at the bottom of the reset mechanism. The reset mechanism uses the inclined surface 17 to gradually push the movable part toward the sealing part 2. Of course, other driving methods can also be used, which are not limited in this application.

[0050] When the linkage is cut off, the linkage cutting mechanism moves, the movable part separates from the linkage cutting mechanism and moves away from the seal until the movable part is pressed and sealed with the inlet air pipe 3. Specifically, during linkage cutting off, the linkage cutting mechanism in this application can be controlled by external information, such as a remote switch or a sensor. In practical applications, when the sensor detects a gas leak, the sensor can send a signal to the controller, and the controller controls the linkage cutting mechanism to be energized. At this time, the linkage cutting mechanism moves, thereby causing the movable part to release from the linkage cutting mechanism. At this time, the movable part loses its constraint and moves away from the seal until the movable part itself is pressed and sealed with the inlet air pipe 3. In this way, the cutting work of the linkage cutting mechanism is completed.

[0051] Furthermore, the aforementioned sealing element can be installed at the inlet end of the inlet air pipe 3, and a sealing structure can also be installed on the side wall of the movable part. The sealing structure moves with the movement of the movable part. When the linkage is cut off, the sealing structure installed on the movable part is used to squeeze and seal the outlet end of the inlet air pipe 3.

[0052] When the linkage cut-off reset is activated, the reset mechanism is driven to move. At the same time, the reset mechanism drives the movable part to move toward the seal, and the reset mechanism drives the linkage cut-off mechanism to move and reset until the movable part abuts against the linkage cut-off mechanism.

[0053] In this embodiment, a linkage mechanism is provided, namely, the reset mechanism has two functions. First, when the overcurrent is cut off, the linkage cutting mechanism is in a magnetic attraction state. At this time, the sealing member 2 is sealed at the end of the sealing member. The reset mechanism can be used to drive the movable member to move towards the sealing member 2 until the end of the movable member passes through the sealing member and contacts and pushes the sealing member 2 out of the sealing member, thus realizing overcurrent reset. When the linkage is cut off, the linkage cutting mechanism extends. At this time, the linkage cutting mechanism does not contact the movable member. When reset is required, the reset mechanism is pressed. After the inclined surface 17 of the reset mechanism contacts the end of the movable member, the reset mechanism is continuously pressed. The inclined surface 17 of the reset mechanism drives the movable member to move towards the sealing member. The bottom end of the reset mechanism drives the linkage cutting mechanism to move downward to reset until the linkage cutting mechanism is magnetically reset. Then, the top of the linkage driving mechanism abuts against the end of the movable member. At this time, the movable member is not sealed with the inlet pipe. After the external force applied to the reset mechanism is released, the reset mechanism automatically resets.

[0054] In one specific implementation, see Figure 4 As shown, the sealing element includes: a shut-off valve 4-1 and a flow-through sealing ring 4-7; the shut-off valve 4-1 is disposed inside the inlet air pipe 3, and a sealing ring 4-2 is disposed between the shut-off valve 4-1 and the inlet air pipe 3; the flow-through sealing ring 4-7 is disposed at the end of the shut-off valve 4-1 and is used to squeeze and seal with the sealing element 2 during flow; the movable element is movably disposed inside the shut-off valve 4-1 and slides with the shut-off valve 4-1, and a shut-off sealing gasket 4-4 is disposed on the side wall of the movable element; when the linkage shut-off occurs, the movable element moves in a direction away from the sealing element until the shut-off sealing gasket 4-4 squeezes and seals with the shut-off valve 4-1.

[0055] Furthermore, the movable component includes: a cutting push rod 4-3, a spring 4-5, and a retaining ring 4-6 for the hole; the cutting push rod 4-3 is movably disposed inside the cutting valve 4-1 and slides in cooperation with the cutting valve 4-1; the retaining ring 4-6 for the hole is fixed inside the cutting valve 4-1; one end of the spring 4-5 is connected to the retaining ring 4-6 for the hole, and the other end is connected to the cutting push rod 4-3, for driving the cutting push rod 4-3 to move in a direction away from the flow sealing ring 4-7; the cutting sealing gasket 4-4 is disposed on the side wall of the cutting push rod 4-3.

[0056] In this embodiment, the shut-off valve 4-1 is installed inside the inlet air pipe 3, and a sealing ring 4-2 is installed between the shut-off valve 4-1 and the inner wall of the inlet air pipe 3 to improve the sealing performance between them. The shut-off valve 4-1 and the inlet air pipe 3 are relatively fixed, which can improve the assembly stability of the overall structure. A shut-off sealing gasket 4-4 is installed. When the moving part moves in the direction away from the sealing gasket, the shut-off sealing gasket 4-4 seals the outlet of the shut-off valve 4-1 to realize the linkage shut-off function. The overflow sealing ring 4-7 is installed at the inlet end of the shut-off valve 4-1. When there is overflow, the airflow blows the steel ball and squeezes the overflow sealing ring 4-7 to realize the overflow shut-off function. It can be seen that the overflow shut-off and linkage shut-off in this application work independently and do not interfere with each other. It is simpler and smaller to design the linkage shut-off and overflow shut-off structures independently. The reset mechanism of the overflow shut-off and linkage shut-off is set as a system. This design not only has high shut-off reliability, but also simple reset operation and more reasonable design.

[0057] In one specific embodiment, the reset mechanism includes: a reset button 7, a reset spring 8, and a pin 6; an elongated through hole 16 is provided on the reset button 7, and the pin 6 passes through the elongated through hole 16 and is connected to the voltage regulator body; the pin 6 is used to limit the travel of the reset button 7; the reset spring 8 is sleeved on the outside of the reset button 7 and is used to apply force to the reset button 7 to reset the reset button 7; a first sealing ring 5 is provided on the side wall of the reset button 7; an inclined surface 17 is formed at the bottom end of the reset button 7, and the reset button 7 drives the movable part to move toward the sealing part through the inclined surface 17; when the linkage cut-off reset is performed, the inclined surface 17 at the bottom end of the reset button 7 drives the movable part to move toward the sealing part, and at the same time, the bottom end of the reset button 7 drives the linkage cut-off mechanism to move and reset until the movable part abuts against the linkage cut-off mechanism.

[0058] In one specific implementation, see Figure 6As shown, the voltage regulator body includes a lower housing 1, and the linkage cutting mechanism is disposed within the lower housing 1; the linkage cutting mechanism includes: a cutting rod 9, a second sealing ring 10, a gasket 12, and a one-way holding electromagnet 11; the one-way holding electromagnet 11 is disposed within the lower housing 1; the cutting rod 9 is inserted into the electromagnet 11; the second sealing ring 10 is coaxially sleeved on the outside of the cutting rod 9; The gasket 12 is connected to the lower housing 1 and is located above the second sealing ring 10; the cutting rod 9 passes through the gasket 12 and is movably engaged with the gasket 12; a protrusion 14 is formed at the end of the cutting rod 9 for abutting the end of the movable part, and a clearance hole 15 is formed below the protrusion 14; during linkage cutting, the one-way holding electromagnet 11 is energized, and the electromagnet 11 pushes out the cutting rod 9; the cutting rod 9 moves so that the movable part is inserted into the clearance hole 15, so that the movable part is separated from the linkage cutting mechanism and moves in a direction away from the sealing element.

[0059] In this embodiment, a one-way holding electromagnet 11 is used. A one-way holding electromagnet 11 is an electromagnet 11 with holding force at only one end. It belongs to the holding electromagnet 11 type. The holding electromagnet 11 is based on the design of the push-pull electromagnet 11, with the addition of a permanent magnet, so that it has holding force after power is cut off, and the iron core will not move due to inertia after power is cut off. Specifically, in this application, a permanent magnet is installed at the bottom of the electromagnet 11. In the initial state, the electromagnet 11 is not energized. At this time, under the magnetic attraction of the permanent magnet, the cutting rod 9 is magnetically attracted to the bottom and kept stable. At this time, the protrusion 14 of the cutting rod 9 abuts against the end of the cutting push rod 4-3, and the cutting sealing gasket 4-4 is separated from the port of the cutting valve 4-1 without sealing. Under the premise of no flow, the pressure regulator is vented. When linkage cutting is required, after the electromagnet 11 is energized for a predetermined time, the electromagnet 11 generates a magnetic field. The magnetic field repels the magnetic field of the permanent magnet, causing the cutting rod 9 to be pushed out. At this time, the clearance hole 15 of the cutting rod 9 is aligned with the end of the cutting push rod 4-3. After the cutting push rod 4-3 loses the constraint of the protrusion 14, it moves away from the overflow sealing ring 4-7 under the action of the spring 4-5. At this time, the cutting sealing gasket 4-4 moves under the drive of the cutting push rod 4-3 and squeezes and seals with the outlet end of the cutting valve 4-1, realizing linkage cutting.

[0060] It should be noted that the unidirectional holding electromagnet 11 in this application was directly purchased, and no changes were made to its structure in this application.

[0061] In one specific embodiment, an indicator button 13 is provided on the regulator body.

[0062] In this embodiment, the cutting unit 4 is placed inside the inlet air pipe 3. The cutting unit 4 is sealed with the inlet air pipe 3 and the lower housing 1 by the sealing ring 4-2. This ensures that whether it is the overflow cutting, i.e., the steel ball sealing with the overflow sealing ring 4-7, or the cutting sealing gasket 4-4 sealing with the cutting valve 4-1 in the linkage cutting, the seal after cutting is inside the inlet air pipe 3, thereby achieving the requirements of smaller size and better sealing performance.

[0063] In this embodiment, see Figure 1 When the pressure regulator is in normal ventilation, the electromagnet 11 is in the attracted state, the cut-off rod 9 is in the fallen state, and the right end of the cut-off push rod 4-3 is against the protrusion 14 of the cut-off rod 9. The pressure regulator is in the ventilation state, and the indicator button 13 is in the lifted state.

[0064] like Figure 2 As shown, if the flow rate entering the regulator exceeds the overcurrent cutoff setting during normal ventilation, an overcurrent cutoff occurs. The steel ball is blown up and adheres to the overcurrent sealing ring 4-7, thus cutting off the regulator, and the regulator indicator button 13 falls back. The function of the retaining ring 4-6 is to prevent the overcurrent sealing ring 4-7 from shifting to the right under gas pressure. Pressing the reset button 7 can reopen the regulator, specifically as follows: When the reset button 7 is pressed, the inclined surface 17 below the reset button 7 contacts the end of the cutoff push rod 4-3, thereby pushing the cutoff push rod 4-3 to compress the spring 4-5. The cutoff push rod 4-3 shifts to the left, thereby pushing open the steel ball and opening the valve. The reset button 7 is pushed up by the reset spring 8. The pin 6 serves two purposes: firstly, to prevent the reset button 7 from rotating, and secondly, to prevent the reset button 7 from falling out of the lower housing 1. The function of the first sealing ring 5 is to prevent gas leakage.

[0065] like Figure 3 As shown, if a shutdown occurs during normal ventilation, the status will be as follows: Figure 3 As shown, electromagnet 11 is in the off state, and the cutting rod 9 is lifted. The cutting push rod 4-3 is displaced to the right under the action of spring 4-5, causing the cutting sealing gasket 4-4 to contact and seal with the cutting valve 4-1, thus achieving the purpose of linkage cutting. Pressing the reset button 7 can reopen the pressure regulator, specifically as follows: When the reset button 7 is pressed, the inclined surface 17 below the reset button 7 contacts the cutting push rod 4-3, thereby pushing the cutting push rod 4-3 to compress the spring 4-5, causing the cutting push rod 4-3 to move to the left. Simultaneously, the reset button 7 causes the cutting rod 9 to move downwards, causing electromagnet 11 to attract the cutting rod 9. At this time, the front end of the cutting push rod 4-3 abuts against the protrusion 14 of the cutting rod 9, the pressure regulator is in the venting state, and the indicator button 13 is in the lifted state. The second sealing ring 10 prevents gas leakage, and the gasket 12 prevents the second sealing ring 10 from shifting when the cutting rod 9 moves upwards.

[0066] In this embodiment, an alarm is also included, which is connected to the linkage cut-off mechanism. The alarm can be a gas alarm. When the alarm detects a gas leak, it can control the linkage cut-off mechanism to actively cut off the pressure regulator to prevent gas leakage.

[0067] In this application, the shut-off mechanism is located inside the handwheel connector, resulting in a compact structure and fewer leakage points. The reset functions for both the linkage shut-off and overcurrent shut-off are integrated into a single design, enabling one-button reset. Therefore, the solution provided in this application is simple and compact in structure, easy to assemble, and convenient for users. Linkage with an alarm can achieve leak shut-off, effectively reducing the occurrence of gas safety accidents.

[0068] 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.

[0069] 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 a linkage cut-off function, characterized in that, Including the voltage regulator body; A cut-off unit (4) is provided in the inlet air pipe (3) of the regulator body; the cut-off unit (4) includes a sealing element and a movable element; the sealing element is provided in the inlet air pipe (3), and the movable element is movably provided in the inlet air pipe (3); A sealing element (2) is provided at the front end of the sealing element; a reset mechanism and a linkage cut-off mechanism are movably provided on the body of the pressure regulator; When ventilation is normal, the movable part abuts against the linkage cut-off mechanism, and there is no seal between the movable part and the inlet air pipe (3); When there is an overflow, the plug (2) is pressed against the seal to form a seal; When the overcurrent is cut off and reset, the reset mechanism is driven to move, and the reset mechanism drives the movable part to move toward the sealing part (2), thereby pushing the sealing part (2) out of the sealing part; When the linkage is cut off, the linkage cutting mechanism moves, the movable part separates from the linkage cutting mechanism and moves in the direction away from the sealing part until the movable part is squeezed and sealed with the inlet air pipe (3); When the linkage cut-off reset is activated, the reset mechanism is driven to move. At the same time, the reset mechanism drives the movable part to move toward the seal, and the reset mechanism drives the linkage cut-off mechanism to move and reset until the movable part abuts against the linkage cut-off mechanism.

2. The voltage regulator with linkage cut-off function according to claim 1, characterized in that, The sealing element includes: a shut-off valve (4-1) and a flow-through sealing ring (4-7); The shut-off valve (4-1) is disposed inside the inlet air pipe (3), and a sealing ring (4-2) is disposed between the shut-off valve (4-1) and the inlet air pipe (3); the overflow sealing ring (4-7) is disposed at the end of the shut-off valve (4-1) and is used to press and seal with the plug (2) during overflow. The movable part is movably disposed inside the shut-off valve (4-1) and slides with the shut-off valve (4-1). A shut-off sealing gasket (4-4) is provided on the side wall of the movable part. When the valve is shut off in a coordinated manner, the movable part moves away from the sealing element until the shut-off sealing gasket (4-4) is squeezed and sealed with the shut-off valve (4-1).

3. The voltage regulator with linkage cut-off function according to claim 2, characterized in that, The movable parts include: a cutting push rod (4-3), a spring (4-5), and a retaining ring for the hole (4-6); The cutting push rod (4-3) is movably disposed inside the cutting valve (4-1) and slides in cooperation with the cutting valve (4-1); the retaining ring (4-6) for the hole is fixed inside the cutting valve (4-1); one end of the spring (4-5) is connected to the retaining ring (4-6) for the hole and the other end is connected to the cutting push rod (4-3), for driving the cutting push rod (4-3) to move in a direction away from the flow sealing ring (4-7); the cutting sealing gasket (4-4) is disposed on the side wall of the cutting push rod (4-3).

4. The voltage regulator with linkage cut-off function according to claim 1, characterized in that, The sealing component (2) has a flow-through structure.

5. The voltage regulator with linkage cut-off function according to claim 4, characterized in that, The flow passage structure is a steel ball flow passage structure, a spring and umbrella-shaped flow passage structure.

6. The voltage regulator with linkage cut-off function according to claim 1, characterized in that, The reset mechanism includes: a reset button (7), a reset spring (8), and a pin (6); A long through hole (16) is provided on the reset button (7), and the pin (6) passes through the long through hole (16) and is connected to the voltage regulator body; the pin (6) is used to limit the movement stroke of the reset button (7); The reset spring (8) is sleeved on the outside of the reset button (7) and is used to apply force to the reset button (7) to reset the reset button (7); a first sealing ring (5) is provided on the side wall of the reset button (7); A slope (17) is formed at the bottom end of the reset button (7), and the reset button (7) drives the movable part to move toward the seal through the slope (17); When the linkage cut-off resets, the bottom inclined surface (17) of the reset button (7) drives the movable part to move toward the seal, and at the same time, the bottom end of the reset button (7) drives the linkage cut-off mechanism to move and reset until the movable part abuts against the linkage cut-off mechanism.

7. The voltage regulator with linkage cut-off function according to claim 1, characterized in that, The voltage regulator body includes a lower housing (1), and the linkage cutting mechanism is disposed in the lower housing (1); the linkage cutting mechanism includes: a cutting top rod (9), a second sealing ring (10), a gasket (12), and a one-way holding electromagnet (11); A one-way holding electromagnet (11) is disposed inside the lower housing (1); the cutting rod (9) is inserted inside the electromagnet (11); The second sealing ring (10) is coaxially sleeved on the outside of the cutting top rod (9); the gasket (12) is connected to the lower housing (1) and is located above the second sealing ring (10); the cutting top rod (9) passes through the gasket (12) and is movably engaged with the gasket (12); The end of the cutting rod (9) has a protrusion (14) for abutting the end of the movable part, and a clearance hole (15) is formed below the protrusion (14). During the linkage cutting, the electromagnet (11) of the one-way holding type is energized, and the electromagnet (11) pushes out the cutting top rod (9); the cutting top rod (9) moves so that the movable part is inserted into the clearance hole (15) so that the movable part is separated from the linkage cutting mechanism and moves in the direction away from the seal.

8. The voltage regulator with linkage cut-off function according to claim 1, characterized in that, An indicator button (13) is provided on the body of the voltage regulator.

9. The voltage regulator with linkage cut-off function according to claim 1, characterized in that, It also includes an alarm, which is connected to the linkage cut-off mechanism.

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