Anti-theft insulating joint of gas meter

Abstract

The utility model relates to an anti-theft insulating joint of a gas meter, which comprises an insulating part, an external thread screw tube, a connecting component and a sealing component, one end of the insulating part is connected with the inner end of the external thread screw tube, the connecting component comprises a connecting tube, a sealing ring and an internal thread nut, and the inner end of the connecting tube is connected with the other end of the insulating part. The connecting pipe is slidably sleeved with the internal thread nut, a circle of annular flange capable of limiting the internal thread nut is arranged on the peripheral wall of the outer end of the connecting pipe, the outer end of the connecting pipe is sleeved with the sealing ring, the inner side face of the sealing ring abuts against the annular flange, a hollow channel is formed in the insulating part, and the external thread screw pipe and the connecting pipe are both communicated with the hollow channel. During installation, the sealing assembly can cover the outer side of the internal thread nut to protect the internal thread nut. The gas supply device is convenient and fast to install and use, gas is conveyed through the hollow channel in the insulating part during gas supply, current can be isolated, the electric leakage phenomenon is prevented, and the sealing assembly can protect the internal thread nut to prevent the gas from being stolen.

Description

Technical Field

[0001] This utility model relates to the field of gas meter connector technology, and in particular to an anti-theft insulating connector for a gas meter. Background Technology

[0002] A gas meter connector is a pipe fitting used to connect a gas meter to a gas pipeline. It typically consists of two interfaces, one connecting to the gas meter and the other to the pipeline. However, common gas pipeline connections on the market inevitably require the use of metal connectors. Traditional structures using two metal connectors or partial insulation materials cannot effectively prevent the conduction of current.

[0003] Although gas meter connectors with insulation functions have appeared on the market, such as the pipeline leakage insulator disclosed in publication number CN221258144U, which includes an insulation kit, an external threaded connector, an internal threaded connector, a round tube, an inner wall, and a channel, the external threaded connector is snapped onto the outside of one end of the insulation kit, and the internal threaded connector is snapped onto the inside of the other end of the insulation kit. The external threaded connector and the internal threaded connector are located at both ends of the insulation kit, the round tube is opened in the middle of the insulation kit, the inner wall is set inside the insulation kit, the inner wall is located at the end of the round tube near the internal threaded connector, the channel is opened in the middle of the inner wall, and the round tube and the channel are located on the same axis and are interconnected. However, in this type of insulator, the insulating kit, external threaded connector, and internal threaded connector are connected together, making it inconvenient to rotate when connecting and installing the gas pipeline, insulating kit, and internal threaded connector. At the same time, the insulator installed in this way has poor anti-tampering properties, which can easily lead to users dismantling, moving, or destroying the meter and removing the meter to use gas directly, thus stealing gas. It can also create potential hazards such as gas leaks at the meter pipe interface and combustion or explosion caused by illegal replacement of the meter. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-theft insulating connector for a gas meter.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An anti-theft insulating connector for a gas meter includes an insulating component, an external threaded tube, a connecting assembly, and a sealing assembly. One end of the insulating component is connected to the inner end of the external threaded tube. The connecting assembly includes a connecting pipe, a sealing ring, and an internal threaded nut. The inner end of the connecting pipe is connected to the other end of the insulating component. The internal threaded nut is slidably fitted onto the connecting pipe. An annular flange is provided on the outer peripheral wall of the connecting pipe to limit the movement of the internal threaded nut. The sealing ring is fitted onto the outer end of the connecting pipe, and the inner surface of the sealing ring abuts against the annular flange. A hollow channel is provided inside the insulating component, and both the external threaded tube and the connecting pipe communicate with the hollow channel. During installation, the sealing assembly can cover the outside of the internal threaded nut for protection.

[0007] Furthermore, the sealing assembly includes a first semi-ring housing, a second semi-ring housing, and a locking structure. One end of the first semi-ring housing is connected to one end of the second semi-ring housing as a whole. The other ends of the first semi-ring housing and the second semi-ring housing are both openable and closable free ends. When the first semi-ring housing and the second semi-ring housing are closed, the first semi-ring housing and the second semi-ring housing can be locked by the locking structure, and the internal thread nut is covered by the cavity formed inside when the first semi-ring housing and the second semi-ring housing are closed.

[0008] Furthermore, the free end of the first semi-ring housing extends outward to form a first handle portion, and the free end of the second semi-ring housing extends outward to form a second handle portion. The locking structure includes a locking member and a locking groove. The locking member is disposed on the first handle portion, and the locking groove is disposed on the second handle portion. When the first semi-ring housing and the second semi-ring housing are closed, the locking member can be inserted into the locking groove and achieve a locking engagement.

[0009] Furthermore, the front end of the locking member is provided with a tapered protrusion, and the groove wall of the locking groove is provided with a ring of barbed anti-disengagement teeth. When the first semi-ring housing and the second semi-ring housing are locked together, the tapered protrusion is inserted into the locking groove, and the barbed anti-disengagement teeth are engaged with the back side of the tapered protrusion.

[0010] Furthermore, the inner end of the external threaded tube is connected to the insulating component by an adhesive coating process, and an insulating annular pipe is wrapped inside the external threaded tube. The insulating annular pipe is connected to the hollow channel, and the inner end of the connecting tube is also connected to the insulating component by an adhesive coating process.

[0011] Furthermore, the inner end of the internal thread nut is provided with an annular stop portion that can form a stop with the annular flange. When the annular stop portion is engaged with the annular flange stop, the inner wall of the annular stop portion abuts against the annular flange. The outer end of the internal thread nut is provided with an annular rim.

[0012] Furthermore, the outer surface of the insulating component is hexagonal and has rounded corners.

[0013] Furthermore, the outer surface of the internal thread nut is hexagonal and has rounded corners.

[0014] Preferably, the external threaded tube, the connecting tube, and the internal threaded nut are all made of brass.

[0015] Preferably, both the first semi-ring shell and the second semi-ring shell are made of plastic.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Firstly, in this utility model's anti-theft insulating connector for a gas meter, the insulating component connects to the external pipeline and gas meter via an external threaded tube and a connecting tube. When gas is supplied, gas is transported through the hollow channel inside the insulating component. The insulating component, located between the external threaded tube and the connecting tube, provides insulation, effectively isolating current and preventing leakage through the connector. It also blocks the conduction and diffusion of electric arcs, reducing heat conduction. Simultaneously, the slidable internal threaded nut fitted onto the connecting tube allows for easier disassembly and installation of the connector with the gas meter.

[0018] Secondly, the structural design of the sealing component in this utility model allows the first and second semi-ring housings to be covered and locked after the internal threaded nut is connected to the gas meter, so that the internal threaded nut is completely enclosed in the space formed inside, which plays a role in preventing disassembly and protecting the internal threaded nut, thus preventing users from disassembling, damaging, or removing the meter and using gas directly, which would be considered gas theft. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of an anti-theft insulating connector for a gas meter according to this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of an anti-theft insulating connector for a gas meter according to this utility model.

[0021] Figure 3 This is an exploded view of the anti-theft insulating connector of a gas meter according to this utility model. Figure 1 .

[0022] Figure 4This is an exploded view of the anti-theft insulating connector of a gas meter according to this utility model. Figure 2 .

[0023] Figure 5 This is a three-dimensional structural diagram of the sealing component in the present invention in the state of waiting to be closed. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings.

[0025] like Figures 1 to 5 As shown, this utility model provides an anti-theft insulating connector for a gas meter, including an insulating component 1, an external threaded tube 2, a connecting assembly 3, and a sealing assembly 4. One end of the insulating component 1 is connected to the inner end of the external threaded tube 2. Specifically, the outer surface of the insulating component 1 is hexagonal with rounded corners for easy connection to an external gas pipe. The connecting assembly 3 includes a connecting pipe 5, a sealing ring 6, and an internal threaded nut 7. The inner end of the connecting pipe 5 is connected to the other end of the insulating component 1, and the internal threaded nut 7 is slidably fitted onto the connecting pipe 5. Preferably, the outer surface of the internal threaded nut 7 is hexagonal with rounded corners for easy connection to the gas meter. An annular flange 51 is provided on the outer peripheral wall of the connecting pipe 5 to limit the internal threaded nut 7. The sealing ring 6 is fitted onto the outer end of the connecting pipe 5, and the inner surface of the sealing ring 6 abuts against the annular flange 51. A hollow channel 11 is provided inside the insulating component 1, and both the external threaded tube 2 and the connecting pipe 5 communicate with the hollow channel 11. During installation, the sealing component 4 can cover the outside of the internal thread nut 7 to protect it, thus preventing users from dismantling, damaging, or removing the meter and using the gas directly, which could lead to gas theft.

[0026] As described above, the sealing assembly 4 includes a first semi-ring housing 41, a second semi-ring housing 42, and a locking structure 43. One end of the first semi-ring housing 41 is integrally connected to one end of the second semi-ring housing 42, and the other ends of both the first semi-ring housing 41 and the second semi-ring housing 42 are openable and closable free ends. When the first semi-ring housing 41 and the second semi-ring housing 42 are closed, they can be locked by the locking structure 43, and the internal thread nut 7 is covered by the cavity formed inside when the first semi-ring housing 41 and the second semi-ring housing 42 are closed, which provides anti-disassembly protection for the internal thread nut 7.

[0027] As described above, the free end of the first semi-ring housing 41 extends outward to form a first handle portion 411, and the free end of the second semi-ring housing 42 extends outward to form a second handle portion 421. The locking structure 43 includes a locking member 431 and a locking groove 432. The locking member 431 is disposed on the first handle portion 411, and the locking groove 432 is disposed on the second handle portion 421. When the first semi-ring housing 41 and the second semi-ring housing 42 are closed, the locking member 431 can be inserted into the locking groove 432 and achieve a locking engagement. This structural design makes it easier for the locking member 431 to engage with the locking groove 432.

[0028] As described above, the front end of the locking member 431 is provided with a tapered protrusion 4311, which makes it easier to insert into the locking groove 432. The groove wall of the locking groove 432 is provided with a ring of barbed anti-disengagement teeth 4321. When the first semi-ring housing 41 and the second semi-ring housing 42 are locked, the tapered protrusion 4311 is inserted into the locking groove 432, and the barbed anti-disengagement teeth 4321 are engaged with the back of the tapered protrusion 4311, which can effectively prevent the locking member 431 from disengaging.

[0029] As described above, the inner end of the external threaded tube 2 is connected to the insulating component 1 using an adhesive coating process, and an insulating annular pipe 21 is wrapped inside the external threaded tube 2. The insulating annular pipe 21 is connected to the hollow channel 11, and the inner end of the connecting pipe 5 is also connected to the insulating component 1 using an adhesive coating process. This structural design makes the connection between the external threaded tube 2, the connecting pipe 5, and the insulating component 1 more stable.

[0030] As described above, the inner end of the internal thread nut 7 is provided with an annular stop portion 71 that can form a stop with the annular flange 51. When the annular stop portion 71 stops and engages with the annular flange 51, the inner wall of the annular stop portion 71 abuts against the annular flange 51. The outer end of the internal thread nut 7 is provided with an annular edge 72.

[0031] Preferably, the external threaded tube 2, the connecting tube 5, and the internal threaded nut 7 are all made of brass, which will not rust during use and are more durable.

[0032] Preferably, both the first semi-ring shell 41 and the second semi-ring shell 42 are made of plastic, which makes it easier to close the first semi-ring shell 41 and the second semi-ring shell 42, and also makes it easier to lock the locking structure 43.

[0033] The above description is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the scope of the present utility model patent application and the description of the utility model shall still fall within the scope of the present utility model patent.

Claims

1. An anti-theft insulating connector for a gas meter, characterized in that: The device includes an insulating component, an external threaded tube, a connecting assembly, and a sealing assembly. One end of the insulating component is connected to the inner end of the external threaded tube. The connecting assembly includes a connecting tube, a sealing ring, and an internal threaded nut. The inner end of the connecting tube is connected to the other end of the insulating component. The internal threaded nut is slidably fitted onto the connecting tube. An annular flange is provided on the outer peripheral wall of the connecting tube to limit the movement of the internal threaded nut. The sealing ring is fitted onto the outer end of the connecting tube, and the inner surface of the sealing ring abuts against the annular flange. The insulating component has a hollow channel inside, and both the external threaded tube and the connecting tube communicate with the hollow channel. During installation, the sealing assembly can cover the outside of the internal threaded nut for protection.

2. The anti-theft insulating connector for a gas meter according to claim 1, characterized in that: The sealing assembly includes a first semi-ring housing, a second semi-ring housing, and a locking structure. One end of the first semi-ring housing is connected to one end of the second semi-ring housing as a whole. The other ends of the first semi-ring housing and the second semi-ring housing are both openable and closable free ends. When the first semi-ring housing and the second semi-ring housing are closed, the first semi-ring housing and the second semi-ring housing can be locked by the locking structure, and the internal thread nut is covered by the cavity formed inside when the first semi-ring housing and the second semi-ring housing are closed.

3. The anti-theft insulating connector for a gas meter according to claim 2, characterized in that: The free end of the first semi-ring housing extends outward to form a first handle portion, and the free end of the second semi-ring housing extends outward to form a second handle portion. The locking structure includes a locking member and a locking groove. The locking member is disposed on the first handle portion, and the locking groove is disposed on the second handle portion. When the first semi-ring housing and the second semi-ring housing are closed, the locking member can be inserted into the locking groove to achieve a locking engagement.

4. The anti-theft insulating connector for a gas meter according to claim 3, characterized in that: The locking member has a tapered protrusion at its front end, and a ring of barbed anti-detachment teeth is provided on the groove wall of the locking groove. When the first semi-ring housing and the second semi-ring housing are locked together, the tapered protrusion is inserted into the locking groove, and the barbed anti-detachment teeth are engaged with the back of the tapered protrusion.

5. The anti-theft insulating connector for a gas meter according to claim 1, 2, 3, or 4, characterized in that: The inner end of the external threaded tube is connected to the insulating component by a rubber coating process, and an insulating annular pipe is wrapped inside the external threaded tube. The insulating annular pipe is connected to the hollow channel. The inner end of the connecting tube is also connected to the insulating component by a rubber coating process.

6. The anti-theft insulating connector for a gas meter according to claim 5, characterized in that: The inner end of the internal thread nut is provided with an annular stop portion that can form a stop with the annular flange. When the annular stop portion is engaged with the annular flange stop, the inner wall of the annular stop portion abuts against the annular flange. The outer end of the internal thread nut is provided with an annular rim.

7. The anti-theft insulating connector for a gas meter according to claim 1, characterized in that: The outer surface of the insulating component is hexagonal with rounded corners.

8. The anti-theft insulating connector for a gas meter according to claim 1, characterized in that: The external part of the internal thread nut is hexagonal with rounded corners.

9. The anti-theft insulating connector for a gas meter according to claim 1, characterized in that: The external threaded tube, connecting tube, and internal threaded nut are all made of brass.

10. The anti-theft insulating connector for a gas meter according to claim 2, characterized in that: Both the first and second semi-ring shells are made of plastic.

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