CN219432709U

CN219432709U - Insulating isolating device of gas pipeline for household

Info

Publication number: CN219432709U
Application number: CN202320695668.7U
Authority: CN
Inventors: 张千一; 李天舒; 胡家昊; 许文轩
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-07-28
Anticipated expiration: 2033-03-31

Abstract

The insulating isolation device for the household gas pipeline comprises a support shell, a metal end cover, an insulating ceramic pipe and a sealing ceramic pipe, wherein the metal end cover is connected with two ends of the metal end cover in a threaded manner, a first sealing gasket is arranged between the metal end cover and the support shell, the insulating ceramic pipe is sleeved in a containing hole of the support shell, a first annular groove for radially limiting the insulating ceramic pipe is arranged in the metal end cover, and a second sealing gasket is arranged in the first annular groove; a buffer sealing gasket is arranged in the insulating ceramic tube, the sealing ceramic tube is sleeved in the insulating ceramic tube, and the sealing ceramic tube is arranged at two sides of the buffer sealing gasket; the step of the metal end cover axially abuts against the tightly sealed ceramic tube so that the two sealing ceramic tubes are close to each other and squeeze the buffer sealing gasket, and a sealing positioning rubber collar is arranged between the sealing ceramic tube and the insulating ceramic tube. The utility model solves the problems of heating and ignition of the gas pipeline and the like caused by electric leakage or poor grounding of the household ground wire of the user through the grounding of the gas pipeline.

Description

Insulating isolating device of gas pipeline for household

Technical Field

The utility model belongs to the technical field of gas connectors, and particularly relates to a household gas pipeline insulation isolation device.

Background

In order to solve the hidden trouble that the gas pipeline is electrified because the resident floor is not grounded or is poorly grounded due to construction, a gas insulating pipeline connector can be used for connecting the gas household pipeline and the user household pipeline. Because the gas pipeline is directly connected with the ground, if the electric appliance of the floor resident is grounded and short-circuited, electric leakage can form a loop along the grounding body such as the gas pipeline, the water pipe and the like and the ground, and because the current heating effect can heat the places such as the gas pipe and the like with higher resistance values, potential safety hazards such as gas leakage, ignition and the like exist, the accidents are frequently and frequently found at present, but because the faults are relatively hidden and easily ignored, and are not easy to find. In the prior art, the gas pipeline joint only has simple insulation function, for example, a novel insulation joint for gas pipelines disclosed in China patent CN211039992U and a novel gas pipeline joint disclosed in CN209262442U, wherein the pipeline joints are all overlapped by a multi-layer structure to realize the functions of insulation, wear resistance, corrosion resistance and the like, rubber can age along with the time, and the high reliability can not be ensured after a long time; in addition, the existing pipeline joint does not have an electrified prompt function, so that a user cannot find potential safety hazards in time.

Disclosure of Invention

The utility model aims to provide a household gas pipeline insulating and isolating device which can effectively prevent the technical problems of heating, ignition and the like of a gas pipeline caused by the fact that leakage current is discharged through the gas pipeline in a grounding manner due to poor grounding of a gas user.

The utility model aims at solving the technical problems by adopting the following technical scheme. The utility model provides a household gas pipeline insulating isolation device, which comprises a support shell, a metal end cover, an insulating ceramic pipe and a sealing ceramic pipe, wherein two ends of the metal end cover are connected with one metal end cover in a threaded manner; a buffer sealing gasket is arranged at the central position inside the insulating ceramic tube, the two sealing ceramic tubes are coaxially sleeved in the insulating ceramic tube, and the sealing ceramic tubes are respectively arranged at two sides of the buffer sealing gasket; the step arranged in the metal end cover axially abuts against the sealing ceramic tube at the corresponding side so that the two sealing ceramic tubes are close to each other and press the buffer sealing gasket, and a third sealing gasket is arranged between the end part of each sealing ceramic tube and the step at the corresponding side; at least one sealing positioning rubber sleeve ring is arranged between each sealing ceramic tube and each insulating ceramic tube, the sealing positioning rubber sleeve rings are in interference fit with the inner wall of each insulating ceramic tube, and the sealing positioning rubber sleeve is used for radially limiting the sealing ceramic tubes.

Further, the support housing is made of ABS material.

Further, a second annular groove for inserting the corresponding end of the supporting shell is formed in the metal end cover, the first sealing gasket is arranged in the second annular groove, a boss is arranged in the second annular groove, and corresponding screw holes are formed in the end faces of the metal end cover and the supporting shell; after the metal end cover is in threaded connection with the support shell, a screw passes through a screw hole in the metal end cover and a first sealing gasket and is in threaded connection with the screw hole in the end face, so that the metal end cover is locked and fixed with the support shell, a groove formed in the first sealing gasket is used for being matched with a boss, and after the metal end cover is locked and fixed, the first sealing gasket is pressed between the metal end cover and the corresponding end face.

Further, the height of the protrusion of the boss is equivalent to the thickness of the first sealing gasket.

Further, still be equipped with the equipment bin on the support shell, equipment bin and holding hole separate the setting, be equipped with two conduction grooves in the equipment bin, every conduction groove extends towards the corresponding side terminal surface direction of support shell, so that the export and the boss of conduction groove are just right, the detection hole of axial extension has been seted up on the boss, the detection hole is intercommunication each other with the conduction groove that corresponds, be equipped with conductive bolt in the conduction groove, conductive bolt's head end wears out the back from the export of conduction groove and detects hole threaded connection, conductive bolt's tail end is used for through the alarm module electric connection in wire and the equipment bin.

Further, the end part of the metal end cover is a joint part, and G1/2 pipe threads are arranged on the joint part.

Further, the first sealing gasket, the second sealing gasket and the third sealing gasket are all silicon rubber gaskets.

The beneficial effects of the utility model are as follows: according to the utility model, the ceramic tube and the multiple sealing gaskets are matched to electrically insulate and isolate the two ends of the device, the problem of electrification of the gas pipeline is solved while the sealing performance is excellent, the hidden dangers of heating and ignition of the gas pipeline caused by electric leakage of a household appliance or bad grounding leakage current of a household ground wire of a user through the gas pipeline and the like are solved, and the device has the advantages of stronger structural stability, high reliability, long service life, low production cost and the like. In addition, the utility model can further remind the user of potential safety hazards such as leakage or poor ground wire contact and the like in the home through the alarm module, and can effectively protect the safety of the gas user in using the gas.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model, as well as the preferred embodiments thereof, together with the following detailed description of the utility model given in conjunction with the accompanying drawings.

Drawings

Fig. 1 to 2 are schematic perspective views of an insulating isolation device for a household gas pipeline according to the present utility model.

FIG. 3 is an exploded schematic view of an insulation isolation device for a household gas pipeline according to the present utility model.

Fig. 4 is a schematic diagram of a conducting slot in the present utility model.

Fig. 5 is a schematic front view of an insulation isolation device for a household gas pipeline.

Fig. 6 is a schematic view of section A-A in fig. 5.

Fig. 7 is a schematic view of the internal structure of the metal end cap of the present utility model.

FIG. 8 is a schematic view of the assembly of a metal end cap and a support housing of the present utility model.

Detailed Description

The following is a further detailed description of the preferred embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 8, a household gas pipeline insulation isolation device comprises a support shell 1, a metal end cover 2, an insulation ceramic pipe 3, a sealing ceramic pipe 4, a sealing positioning rubber sleeve ring 5 and a buffer sealing gasket 6, wherein the support shell 1 is integrally injection molded by an ABS material, the metal end cover 2 is provided with two metal end covers, the metal end covers are respectively arranged at two ends of the support shell, a first sealing gasket 7 is arranged between the metal end cover and the support shell, the end part of the metal end cover 2 is a joint part 201, and G1/2 pipe threads are arranged on the joint part so as to be in threaded connection with a gas pipe. The insulating ceramic tube 3 is arranged in the accommodating hole 101 of the supporting shell 1, the insulating ceramic tube 3 is axially limited between the two metal end covers, a first annular groove 202 for radially limiting the insulating ceramic tube 3 is arranged inside the metal end cover 2, and a second sealing gasket 8 is arranged between the first annular groove 202 and the end part of the insulating ceramic tube. In this embodiment, the metal end cover is in threaded connection with the support housing, and in addition, referring to fig. 7 and 8, a boss 9 is provided on a second annular groove 203 in the metal end cover, corresponding screw holes 10 are provided on an end surface 102 of the metal end cover and the support housing, and after the metal end cover is in threaded connection with the support housing, a screw passes through the screw holes on the metal end cover and the first sealing gasket and then is in threaded connection with the screw holes on the end surface, so that the metal end cover and the support housing are further locked and fixed; the groove 701 formed on the first sealing gasket 7 is matched with the boss 9, so that the first sealing gasket can be prevented from rotating radially, and the first sealing gasket is pressed between the metal end cover and the corresponding end face 102 after the metal end cover is locked. Preferably, the height of the protrusion of the boss 9 may be equal to the thickness of the first sealing gasket, so that the first sealing gasket plays a role in sealing and buffering; in addition, the boss may be rounded to facilitate the snap-fit of the first sealing gasket into the metallic end cap.

The buffer sealing gasket 6 is arranged at the central position inside the insulating ceramic tube 3, the two sealing ceramic tubes 4 are coaxially sleeved in the insulating ceramic tube 3, the two sealing ceramic tubes 4 are respectively arranged at two sides of the buffer sealing gasket 6, the metal end covers at two ends are fixed behind the supporting shell, and the sealing ceramic tubes 4 at the corresponding sides are axially abutted through the steps 204 arranged inside the metal end covers, so that the two sealing ceramic tubes are close to each other and press the buffer sealing gasket 6. At least one sealing positioning rubber sleeve ring 5 is arranged between each sealing ceramic tube and each insulating ceramic tube. The sealing positioning rubber sleeve ring is sleeved in the insulating ceramic tube in an interference fit mode, radial limiting fixation of the sealing ceramic tube is achieved, the insulating ceramic tube and the sealing ceramic tube are guaranteed to be coaxially arranged, dislocation of internal parts caused by vibration is prevented, meanwhile, the sealing positioning rubber sleeve ring and the inner wall of the insulating ceramic tube are in interference fit, gas leakage can be prevented, and a sealing effect is achieved. Further, a third sealing gasket 11 is provided between the end of each sealing ceramic tube 4 and the corresponding step 204. In this embodiment, the first sealing gasket, the second sealing gasket and the third sealing gasket may all be silicone rubber gaskets.

The supporting shell 1 is further provided with an equipment bin 103 which is not communicated with the accommodating hole, the equipment bin and the accommodating hole are arranged separately, two axially extending conducting grooves 12 are arranged in the equipment bin, each conducting groove 11 extends towards the corresponding side end face 102 direction of the supporting shell, so that an outlet 121 of each conducting groove 12 is opposite to a boss 9, a detecting hole 901 is formed in the boss, the detecting hole 901 is communicated with the corresponding conducting groove 12, a conductive bolt (not shown in the drawing) is arranged in the conducting groove 12, one end of the end face is defined to be the front end of the corresponding conducting groove, the head end of the conductive bolt penetrates out from the outlet 121 of the front end of the conducting groove and is in threaded connection with the detecting hole 901 in the boss, the tail end of the conductive bolt is electrically connected with an alarm module in the equipment bin through a wire, and the alarm module is of the prior art and is not repeated. The cross section of the conducting groove can be the same as that of the boss, and when the height of the boss is larger than the thickness of the first sealing gasket, the boss can also partially enter the conducting groove; when the screw hole on the metal end cover is aligned with the screw hole on the supporting shell, the boss is also considered to be aligned with the conducting groove. Because equipment bin and metal end cover intercommunication, in order to prevent unexpected leakage of gas, the embedment has the sealant in the equipment bin, further improves product sealing performance.

The working principle of the utility model is as follows: when the gas meter is used, the metal end cover at one end of the gas meter is connected with the gas household pipeline, and the gas meter can be additionally arranged behind the gas meter; the metal end cover at the other end of the utility model is connected with common household gas equipment such as a gas stove, a wall-mounted stove, a gas water heater and the like through the gas pipeline, and the utility model eliminates gas leakage through a triple sealing structure formed by the sealing ceramic pipe, the insulating ceramic pipe and the supporting shell, ensures the sealing performance of the device, and greatly improves the stability and the service life of the device through the use of the ceramic pipe. When the household has a grounding short circuit fault, if the household is not provided with the gas pipeline grounding device, leakage current flows into the ground from the gas pipeline along the equipment ground wire, and if the leakage current is high, high temperature is generated at the position where the resistance of the gas pipeline is high, so that potential safety hazard occurs. After the utility model is additionally arranged, the electric insulation is realized between the household gas equipment and the gas inlet pipeline, and if the household of a user has a ground fault, the effective current path is not formed, so that the potential safety hazard caused by the current heating effect of the gas pipeline is eliminated, the leakage current cannot form a loop through the gas pipeline and the earth, and the safety of the gas pipeline is ensured. Meanwhile, the two conductive bolts can be used for connecting current signals at two ends of the device into the alarm module, whether the pressure difference exists between the connecting end and the user end or not can be detected through the existing alarm module, and then an audible and visual alarm can be sent out through the explosion-proof buzzer to remind a user of the occurrence of an earth leakage fault.

The foregoing is merely a preferred embodiment of the present utility model, and is not described in detail in the prior art; any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model, without departing from the technical scope of the present utility model, will still fall within the scope of the present utility model.

Claims

1. The utility model provides a go into house with gas pipeline insulation isolating device which characterized in that: the metal end cover is internally provided with a first annular groove for radially limiting the insulating ceramic pipe, and a second sealing gasket is arranged in the first annular groove; a buffer sealing gasket is arranged at the central position inside the insulating ceramic tube, the two sealing ceramic tubes are coaxially sleeved in the insulating ceramic tube, and the sealing ceramic tubes are respectively arranged at two sides of the buffer sealing gasket; the step arranged in the metal end cover axially abuts against the sealing ceramic tube at the corresponding side so that the two sealing ceramic tubes are close to each other and press the buffer sealing gasket, and a third sealing gasket is arranged between the end part of each sealing ceramic tube and the step at the corresponding side; at least one sealing positioning rubber sleeve ring is arranged between each sealing ceramic tube and each insulating ceramic tube, the sealing positioning rubber sleeve rings are in interference fit with the inner wall of each insulating ceramic tube, and the sealing positioning rubber sleeve is used for radially limiting the sealing ceramic tubes.

2. The household gas pipeline insulation and isolation device according to claim 1, wherein: the support housing is made of ABS material.

3. The household gas pipeline insulation and isolation device according to claim 1, wherein: the metal end cover is internally provided with a second annular groove for inserting the corresponding end of the supporting shell, the first sealing gasket is arranged in the second annular groove, a boss is arranged in the second annular groove, and corresponding screw holes are formed in the end faces of the metal end cover and the supporting shell; after the metal end cover is in threaded connection with the support shell, a screw passes through a screw hole in the metal end cover and a first sealing gasket and is in threaded connection with the screw hole in the end face, so that the metal end cover is locked and fixed with the support shell, a groove formed in the first sealing gasket is used for being matched with a boss, and after the metal end cover is locked and fixed, the first sealing gasket is pressed between the metal end cover and the corresponding end face.

4. A household gas pipeline insulation and isolation device according to claim 3, wherein: the height of the protrusion of the boss is equivalent to the thickness of the first sealing gasket.

5. A household gas pipeline insulation and isolation device according to claim 3, wherein: the support shell is further provided with an equipment bin which is separated from the accommodating hole, two conducting grooves are arranged in the equipment bin, each conducting groove extends towards the corresponding side end face direction of the support shell, so that the outlet of each conducting groove is opposite to the boss, the boss is provided with an axially extending detection hole, the detection hole and the corresponding conducting groove are communicated with each other, a conductive bolt is arranged in each conducting groove, the head end of the conductive bolt penetrates out of the outlet of each conducting groove and is in threaded connection with the detection hole, and the tail end of the conductive bolt is used for being electrically connected with an alarm module in the equipment bin through a wire.

6. The household gas pipeline insulation and isolation device according to claim 1, wherein: the end part of the metal end cover is a joint part, and G1/2 pipe threads are arranged on the joint part.

7. The household gas pipeline insulation and isolation device according to claim 1, wherein: the first sealing gasket, the second sealing gasket and the third sealing gasket are all made of silicon rubber gaskets.