Gas joint insulation safety connection structure

Abstract

The utility model relates to a gas joint insulation safety connection structure which comprises an internal thread nut, one end of the internal thread nut is fixedly connected with a pressing ring, the inner side of the pressing ring is rotatably connected with an inner sealing ring, the inner sealing ring is fixedly connected with a flange outside the pressing ring, and the pressing ring is rotatably clamped between the flange and the inner sealing ring. An outer sealing ring is fixedly connected to the other face of the flange, a clamping ring is rotationally clamped between the inner side of the outer sealing ring and the flange, and an external thread solenoid is fixedly connected to the clamping ring. According to the gas connector insulation safety connection structure, the inner sealing ring, the outer sealing ring and the flanges are used for forming isolation of the upper connecting piece and the lower connecting piece, so that metal contact between the gas metal pipe and the equipment gas connector is cut off, and it is avoided that under the condition of equipment electric leakage, current is possibly conducted to a gas pipeline through the connection position, and then a larger safety accident is caused.

Description

Technical Field

[0001] The utility model relates to a gas joint connection structure, in particular to a gas joint insulation safety connection structure. Background Art

[0002] Gas-powered appliances such as gas water heaters and wall-mounted boilers have become an indispensable part of modern household life, providing convenient and efficient hot water and heating services. However, as these appliances gain popularity and age, a series of safety issues have gradually emerged, particularly electric shock and fire accidents caused by leakage, which pose a serious threat to people's lives and property. In recent years, safety incidents such as electric shock and fire caused by leakage from gas-powered appliances such as gas water heaters and wall-mounted boilers have occurred frequently. Leakage can occur due to a variety of factors, including aging building grounding systems, unauthorized wiring, unreliable switches and sockets, and aging and live ground wires. Leakage not only damages the equipment but, more importantly, can cause electric shock and fire, seriously threatening people's lives and property.

[0003] Traditional connections between gas pipelines and gas-using equipment often lack adequate insulation. This means that if a device leaks electricity, the current could be transferred through the connection to the gas pipeline, potentially causing a greater safety hazard. This connection method no longer meets the high safety requirements of modern households for gas use. Utility Model Content

[0004] The purpose of the utility model is to provide a gas joint insulation safety connection structure, which is used to solve the problem that in the existing gas joint connection structure, when the equipment leaks, the current may be conducted to the gas pipeline through the connection point, thereby causing a greater safety accident.

[0005] In order to solve the above problems, the utility model provides an insulating safety connection structure of a gas joint, including an internal thread nut, one end of the internal thread nut is fixedly connected to a pressure ring, the inner side of the pressure ring is rotatably connected to an inner sealing ring, the inner sealing ring is fixedly connected to a flange outside the pressure ring, the pressure ring is rotatably clamped between the flange and the inner sealing ring, the other side of the flange is fixedly connected to an outer sealing ring, a clamping ring is rotatably clamped between the inner side of the outer sealing ring and the flange, and an external thread screw is fixedly connected to the clamping ring.

[0006] The utility model provides a gas joint insulation safety connection structure which also has the following technical features:

[0007] Furthermore, the outer thread screw is provided with a regular hexagonal hole inside one end of the clamping ring.

[0008] Furthermore, a limiting ring is sleeved on the outer sealing ring, a clamping ring is fixedly connected to the bottom end of the limiting ring, and the outer sealing ring is located between the clamping ring and the snap ring.

[0009] Furthermore, the top end of the limiting ring abuts against the bottom surface of the flange.

[0010] Furthermore, a fixing nut is threadedly connected to the external threaded screw tube, and the fixing nut abuts against the clamping ring.

[0011] Furthermore, the inner sealing ring and the outer sealing ring are both made of soft rubber, and the flange and the connection portion with the inner sealing ring and the outer sealing ring are both made of hard insulating rubber.

[0012] The utility model has the following beneficial effects: the insulating safety connection structure of the gas joint described in the present application utilizes inner and outer sealing rings and flanges to form isolation between the upper and lower connecting parts, thereby disconnecting the metal contact between the gas metal pipe and the gas interface of the equipment, and avoiding the possibility that in the event of equipment leakage, the current may be conducted through the connection to the gas pipeline, thereby causing a greater safety accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front cross-sectional isometric diagram of the insulating safety connection structure of a gas joint according to an embodiment of the present utility model;

[0014] Figure 2 This is an axonometric diagram of the insulating safety connection structure of the gas joint according to an embodiment of the present utility model.

[0015] (1-internal thread nut, 2-pressure ring, 3-inner sealing ring, 4-flange, 5-outer sealing ring, 6-circlip, 7-external thread screw, 8-hexagonal hole, 9-limiting ring, 10-clamping ring, 11-fixing nut) DETAILED DESCRIPTION

[0016] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0017] like Figures 1 to 2 In the embodiment of the insulating safety connection structure of the gas joint of the utility model shown, the insulating safety connection structure of the gas joint includes an internal thread nut 1, one end of the internal thread nut 1 is fixedly connected to a pressure ring 2, the inner side of the pressure ring 2 is rotatably connected to an inner sealing ring 3, the inner sealing ring 3 is fixedly connected to a flange 4 outside the pressure ring 2, the pressure ring 2 is rotatably clamped between the flange 4 and the inner sealing ring 3, the other side of the flange 4 is fixedly connected to an outer sealing ring 5, a clamping ring 6 is rotatably clamped between the inner side of the outer sealing ring 5 and the flange 4, and an external thread screw 7 is fixedly connected to the clamping ring 6.

[0018] Specifically, the quick connector nut of the gas pipe is screwed onto the outer thread spiral tube 7, and the nut and the retaining ring 6 on the outer thread spiral tube 7 squeeze the outer sealing ring 5 to prevent air leakage, and then the inner thread nut 1 is screwed onto the gas inlet of the equipment, so that the gas inlet is pressed against the inner sealing ring 3 to prevent air leakage; the inner thread nut 1 and the outer thread spiral tube 7 are not in direct contact due to the isolation of the flange 4, and the outer thread spiral tube 7 and the gas pipeline are not in direct metal contact with the equipment. When the equipment leaks electricity, the current will not be transmitted to the gas pipeline.

[0019] In one embodiment of the present application, preferably, the outer thread screw 7 is provided with a regular hexagonal hole 8 inside one end of the clamping ring 6, so as to facilitate tightening the outer thread screw 7 and the nut of the gas quick connector with an outer hexagonal wrench.

[0020] In one embodiment of the present application, preferably, a limiting ring 9 is sleeved on the outer sealing ring 5, and a clamping ring 10 is fixedly connected to the bottom end of the limiting ring 9. The outer sealing ring 5 is located between the clamping ring 10 and the retaining ring 6, and is used to press against the clamping ring 10 when the nut of the gas quick connector is tightened, so that the clamping ring 10 clamps the outer sealing ring 5 to prevent the outer sealing ring 5 from falling off or deforming.

[0021] In one embodiment of the present application, preferably, the top of the limiting ring 9 contacts the bottom surface of the flange 4, thereby protecting the outer sealing ring 5 and the connection between the outer sealing ring 5 and the flange 4 to a greater extent, and delaying aging and damage.

[0022] In one embodiment of the present application, preferably, a fixing nut 11 is threadedly connected to the external threaded coil 7, and the fixing nut 11 abuts against the clamp ring 10, so that the connection structure can be assembled together before use, which is convenient for installation and use, and the accessories are not easily lost.

[0023] In one embodiment of the present application, preferably, the inner sealing ring 3 and the outer sealing ring 5 are both made of soft rubber, and the flange 4 and the connection parts with the inner sealing ring 3 and the outer sealing ring 5 are both made of hard insulating rubber. The soft rubber is used to make the seal better, and the hard insulating rubber is used for insulation while also having the characteristics of supporting strength and not being easily damaged or aged.

[0024] To sum up, the insulating safety connection structure of the gas joint in the above embodiment of the present invention, specifically, the limiting ring 9 is put on the outer sealing ring 5, the fixing nut 11 is screwed on the outer screw tube 7, and the fixing nut 11 is pressed against the limiting ring 9, so that the clamping ring 10 and the snap ring 6 clamp the outer sealing ring 5, and then the outer screw tube 7 is connected to the quick-connect nut of the gas pipe. After the connection is completed, the inner nut 1 is screwed on the gas inlet of the equipment, and the gas inlet is pressed against the inner sealing ring 3; this device uses the rubber flange 4 and the inner and outer sealing rings to isolate the inner nut 1 and the outer screw tube 7, avoid metal connection, and indirectly isolate the metal connection between the gas pipeline and the equipment, so that in the case of equipment leakage, the current will not be conducted to the gas pipeline through the connection structure, thereby ensuring safe use.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A gas joint insulation safety connection structure, characterized in that: It includes an internal thread nut, one end of which is fixedly connected to a pressure ring, the inner side of the pressure ring is rotatably connected to an inner sealing ring, the inner sealing ring is fixedly connected to a flange outside the pressure ring, the pressure ring is rotatably clamped between the flange and the inner sealing ring, the other side of the flange is fixedly connected to an outer sealing ring, a clamping ring is rotatably clamped between the inner side of the outer sealing ring and the flange, and an external threaded tube is fixedly connected to the clamping ring.

2. The gas joint insulation safety connection structure according to claim 1, characterized in that: The outer thread spiral tube is provided with a regular hexagonal hole inside one end of the clamping ring.

3. The gas joint insulation safety connection structure according to claim 2, characterized in that: A limiting ring is sleeved on the outer sealing ring, and a clamping ring is fixedly connected to the bottom end of the limiting ring. The outer sealing ring is located between the clamping ring and the snap ring.

4. The gas joint insulation safety connection structure according to claim 3, characterized in that: The top end of the limiting ring abuts against the bottom surface of the flange.

5. The gas joint insulation safety connection structure according to claim 4, characterized in that: A fixing nut is threadedly connected to the external thread spiral tube, and the fixing nut abuts against the clamping ring.

6. The gas joint insulation safety connection structure according to claim 1, characterized in that: The inner sealing ring and the outer sealing ring are both made of soft rubber, and the flange and the connection part with the inner sealing ring and the outer sealing ring are both made of hard insulating rubber.

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