Bottled liquefied petroleum gas pressure regulator sealing structure with leakage self-repairing function

Abstract

The utility model relates to the technical field of liquefied petroleum gas equipment, in particular to a bottled liquefied petroleum gas pressure regulator sealing structure with a leakage self-repairing function. According to the technical scheme, the gas valve comprises a valve body, the top of the valve body is provided with a rotating handle used for adjusting pressure, the two sides of the valve body are provided with a gas outlet channel and a gas inlet channel which are used for gas transmission respectively, and a hand wheel is movably arranged on the gas inlet channel. Through the arrangement of the elastic sealing sleeve, the first liquid leakage hole, the second liquid leakage hole, the pressure sensing diaphragm, the starting ejector rod and the storage cavity, when leakage occurs, the pressure of liquefied petroleum gas enables the pressure sensing diaphragm to deform, and then the pressure sensing diaphragm drives the starting ejector rod to pierce the outer wall of the storage cavity; and the self-repairing liquid flows out from the liquid leakage hole I and the liquid leakage hole II, is quickly filled to a leakage point and is quickly solidified after being in contact with fuel gas, so that the sealing repairing effect is realized, the leakage can be repaired in time, and the use safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of liquefied petroleum gas equipment technology, and in particular to a sealing structure for a bottled liquefied petroleum gas pressure regulator with a self-repairing leakage function. Background Technology

[0002] Bottled liquefied petroleum gas (LPG) is widely used in residential and small commercial settings due to its convenient storage and transportation and stable calorific value, becoming an important part of my country's urban and rural energy supply system. As the core hub between the gas cylinder and the gas appliance, the bottled LPG pressure regulator undertakes the crucial functions of pressure reduction, pressure stabilization, and gas sealing. During gas transmission, the regulator must reduce the high-pressure gas in the cylinder to a low-pressure level suitable for the gas appliance, while ensuring no leakage occurs during gas flow. This requires its sealing structure to not only possess excellent pressure resistance but also to withstand long-term chemical corrosion from the gas, drastic changes in ambient temperature, and mechanical damage from frequent disassembly and assembly. Currently, most mainstream pressure regulators on the market use rubber sealing rings, gaskets, and other sealing components.

[0003] Since leaks in the sealing structure can only be resolved through manual inspection and replacement of the sealing components, which is not only inconvenient to operate, but may also cause a gas leak accident before the leak is discovered, threatening the safety of users' lives and property and public safety. In view of the above reasons, this application proposes a sealing structure for a bottled liquefied petroleum gas pressure regulator with a self-repairing function. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a sealing structure for a bottled liquefied petroleum gas pressure regulator with a self-repairing leakage function.

[0005] The technical solution of this utility model is: a sealing structure for a bottled liquefied petroleum gas pressure regulator with self-repair function for leakage, including a valve body, a handle for adjusting pressure on the top of the valve body, an outlet and an inlet for gas transmission on both sides of the valve body, a handwheel movably mounted on the inlet, and a sealing mechanism for improving the sealing performance of the joint at the end of the inlet away from the valve body.

[0006] The sealing mechanism includes an elastic sealing sleeve for sealing, and the elastic sealing sleeve has a storage cavity for storing self-healing gel. The elastic sealing sleeve is provided with multiple pressure-sensitive diaphragms, and one side of each pressure-sensitive diaphragm is provided with a trigger rod for piercing the outer wall of the storage cavity.

[0007] Optionally, the inner ring of the elastic sealing sleeve is provided with a spiral pattern, and the outer side of the elastic sealing sleeve is provided with multiple mounting grooves, and the outer edge of the pressure sensing diaphragm is fixedly connected to the inner wall of the mounting groove.

[0008] Optionally, the inner wall of the mounting groove is provided with multiple leakage holes one, and the outer side of the elastic sealing sleeve is provided with multiple leakage holes two, the leakage holes two and the leakage holes one are connected.

[0009] Optionally, the number of mounting slots is eight, and the eight mounting slots are arranged in a circular equidistant array.

[0010] Optionally, the thickness between the storage cavity and the mounting groove is millimeters, the thickness of the pressure-sensing diaphragm is 0.1-0.5 millimeters, the length of the trigger rod is 10-15 millimeters, and the distance between the pressure-sensing diaphragm and the inner wall of the storage cavity is 10-15 millimeters.

[0011] Optionally, the top of the valve body is provided with a protective structure for protection, the protective structure including a connecting seat for installation, and a protective cover for protection is movably provided on the outside of the connecting seat.

[0012] Optionally, the connector has two slots on its exterior and two blocks are fixedly provided on the inner wall of the protective cover, the blocks and slots being compatible.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] 1. This utility model, through the setting of an elastic sealing sleeve, a first leakage hole, a second leakage hole, a pressure sensing diaphragm, a triggering rod, and a storage cavity, allows the pressure of liquefied petroleum gas to deform the pressure sensing diaphragm in the event of a leak. The pressure sensing diaphragm then drives the triggering rod to pierce the outer wall of the storage cavity, causing the self-repairing fluid to flow out from the first and second leakage holes, quickly filling the leak point. After contacting the gas, it quickly solidifies, achieving a sealing and repair effect. This allows for timely repair in the event of a leak, improving safety in use.

[0015] 2. This utility model, through the setting of protective cover, connecting seat, locking block and locking groove, can protect the rotating handle and prevent the rotating handle from being damaged by external force or the pressure from being accidentally touched. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of this utility model is provided;

[0017] Figure 2 A three-dimensional schematic diagram of the present invention after removing the protective structure is provided;

[0018] Figure 3 An exploded view of the sealing mechanism in this utility model is provided;

[0019] Figure 4 A side sectional view of the elastic sealing sleeve in this utility model is provided;

[0020] Figure 5 A top-section structural diagram of the elastic sealing sleeve in this utility model is provided;

[0021] Figure 6 An exploded view of the protective structure in this utility model is provided.

[0022] Figure label:

[0023] 1. Valve body;

[0024] 2. Rotary handle;

[0025] 3. Air vent;

[0026] 4. Air intake;

[0027] 5. Handwheel;

[0028] 6. Sealing mechanism; 601. Elastic sealing sleeve; 602. Spiral texture; 603. Mounting groove; 604. Leakage hole one; 605. Leakage hole two; 606. Pressure sensing diaphragm; 607. Trigger rod; 608. Storage cavity;

[0029] 7. Protective structure; 701. Connecting seat; 702. Protective cover; 703. Slot; 704. Locking block. Detailed Implementation

[0030] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.

[0031] The components of the embodiments of this disclosure, which are typically described and shown in the accompanying drawings, can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of embodiments of this disclosure provided in the drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure.

[0032] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0033] In the description of this disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0034] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0035] Example

[0036] like Figure 1-6 As shown, the present invention proposes a sealing structure for a bottled liquefied petroleum gas pressure regulator with a self-repair function for leaks, including a valve body 1, a handle 2 for adjusting pressure on the top of the valve body 1, an outlet 3 and an inlet 4 for gas transmission on both sides of the valve body 1, a handwheel 5 movably mounted on the inlet 4, and a sealing mechanism 6 for improving the sealing performance of the joint at the end of the inlet 4 away from the valve body 1.

[0037] The sealing mechanism 6 includes an elastic sealing sleeve 601 for sealing. The inner ring of the elastic sealing sleeve 601 has a spiral pattern 602. The outer side of the elastic sealing sleeve 601 has multiple mounting grooves 603, eight in total, arranged in a circular equidistant array. The inner wall of the mounting grooves 603 has multiple leakage holes 604. The outer side of the elastic sealing sleeve 601 has multiple leakage holes 605, which communicate with the leakage holes 604. The leakage holes 604 and 605 allow self-repairing fluid to flow out, quickly filling the leak point. Upon contact with the gas, the fluid solidifies rapidly, achieving a seal repair. The elastic sealing sleeve 601 has multiple pressure-sensing diaphragms 606, which are made of beryllium bronze alloy. One side of each pressure-sensing diaphragm 606 has a... The trigger rod 607 pierces the outer wall of the storage cavity 608. When leakage occurs, the pressure will cause the pressure sensing diaphragm 606 to deform. The pressure sensing diaphragm 606 then drives the trigger rod 607 to pierce the storage cavity 608, allowing the self-healing fluid inside to flow out and complete the repair operation. The outer edge of the pressure sensing diaphragm 606 is fixedly connected to the inner wall of the mounting groove 603. The edge of the pressure sensing diaphragm 606 is tightly bonded to the edge of the mounting groove 603 by a ring of sealant. The elastic sealing sleeve 601 has a storage cavity 608 for storing self-healing gel. The thickness between the storage cavity 608 and the mounting groove 603 is 2 mm. The thickness of the pressure sensing diaphragm 606 is 0.3 mm. The length of the trigger rod 607 is 11 mm. The distance between the pressure sensing diaphragm 606 and the inner wall of the storage cavity 608 is 14 mm.

[0038] The top of the valve body 1 is provided with a protective structure 7 for protection. The protective structure 7 includes a connecting seat 701 for installation. A protective cover 702 for protection is movably provided on the outside of the connecting seat 701. Two slots 703 are provided on the outside of the connecting seat 701. Two blocks 704 are fixedly provided on the inner wall of the protective cover 702. The blocks 704 and the slots 703 are compatible. The protective structure 7 can protect the handle 2 and prevent the handle 2 from being damaged by external force or from changing the pressure due to accidental contact.

[0039] In this embodiment, without adjusting the handle 2, the protective cover 702 is located outside the handle 2 to protect it. When the pressure needs to be adjusted by rotating the handle 2, the protective cover 702 is rotated counterclockwise to remove the protective cover 702 from the connecting seat 701. After adjustment, the operation is reversed to install the protective cover 702 outside the handle 2. When a leak occurs at the interface of the equipment, the pressure of the liquefied petroleum gas will cause the pressure sensing diaphragm 606 to deform. The pressure sensing diaphragm 606 then drives the trigger rod 607 to pierce the outer wall of the storage cavity 608, allowing the self-repairing liquid to flow out from the first leak hole 604 and the second leak hole 605, quickly filling the leak point. After contacting the gas, it quickly solidifies, achieving the effect of sealing and repairing. It can repair leaks in time and improve the safety of use.

[0040] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A sealing structure for a bottled liquefied petroleum gas pressure regulator with self-repairing leakage function, comprising a valve body (1), wherein the top of the valve body (1) is provided with a handle (2) for adjusting pressure, and the two sides of the valve body (1) are respectively provided with an outlet (3) and an inlet (4) for gas transmission, wherein a handwheel (5) is movably provided on the inlet (4), characterized in that: The intake duct (4) is provided with a sealing mechanism (6) at the end away from the valve body (1) to improve the sealing performance of the joint; The sealing mechanism (6) includes an elastic sealing sleeve (601) for sealing, the elastic sealing sleeve (601) is provided with a storage cavity (608) for storing self-healing gel, the elastic sealing sleeve (601) is provided with a plurality of pressure sensing diaphragms (606), and one side of the pressure sensing diaphragm (606) is provided with a trigger rod (607) for piercing the outer wall of the storage cavity (608).

2. The sealing structure of a bottled liquefied petroleum gas pressure regulator with self-repairing leakage function according to claim 1, characterized in that, The inner ring of the elastic sealing sleeve (601) is provided with a spiral pattern (602), and the outer side of the elastic sealing sleeve (601) is provided with a plurality of mounting grooves (603). The outer edge of the pressure sensing diaphragm (606) is fixedly connected to the inner wall of the mounting groove (603).

3. The sealing structure of a bottled liquefied petroleum gas pressure regulator with self-repairing leakage function according to claim 2, characterized in that, The inner wall of the mounting groove (603) is provided with a plurality of leakage holes one (604), and the outer side of the elastic sealing sleeve (601) is provided with a plurality of leakage holes two (605), and the leakage holes two (605) are connected to the leakage holes one (604).

4. The sealing structure of a bottled liquefied petroleum gas pressure regulator with self-repairing leakage function according to claim 2, characterized in that, The number of mounting slots (603) is eight, and the eight mounting slots (603) are arranged in a circular equidistant array.

5. The sealing structure of a bottled liquefied petroleum gas pressure regulator with self-repairing leakage function according to claim 2, characterized in that, The thickness between the storage cavity (608) and the mounting groove (603) is 2 mm, the thickness of the pressure sensing diaphragm (606) is 0.1-0.5 mm, the length of the trigger rod (607) is 10-15 mm, and the distance between the pressure sensing diaphragm (606) and the inner wall of the storage cavity (608) is 10-15 mm.

6. The sealing structure of a bottled liquefied petroleum gas pressure regulator with self-repairing leakage function according to claim 1, characterized in that, The valve body (1) has a protective structure (7) on its top for protection. The protective structure (7) includes a connecting seat (701) for installation. The connecting seat (701) is movably provided with a protective cover (702) for protection.

7. The sealing structure of a bottled liquefied petroleum gas pressure regulator with self-repairing leakage function according to claim 6, characterized in that, The connector (701) has two slots (703) on its outside, and the inner wall of the protective cover (702) is fixed with two blocks (704), which are compatible with the slots (703).

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