Non-return filtering gas insulation leakage connector

Abstract

The utility model relates to the technical field of gas connectors, in particular to a non-return gas filtering insulation leakage connector, which is characterized in that an internal thread is arranged inside the left side of an outer shell, an external thread is arranged on the right side of the outer shell, a filter screen is arranged on the inner side of the internal thread, and a one-way valve is arranged on the inner side of the filter screen; the upper portion of the inner wire and the upper portion of the outer wire are respectively connected with a circuit board through a contact spring, a photoelectric display panel electrically connected with the circuit board is arranged on the upper portion of the circuit board, and a small covering plate is arranged on the upper portion of the photoelectric display panel. The functions of impurity filtering and electric leakage alarm are achieved, and the functions of prolonging the service life of gas equipment and pipelines and improving safety and stability are achieved.

Description

Technical Field

[0001] This utility model relates to the field of gas connector technology, specifically a backflow preventer, filter, gas insulation, and leakage connector. Background Technology

[0002] Gas insulation joints are key components used for electrical insulation and isolation in gas pipeline systems. They mainly prevent safety hazards caused by electrochemical corrosion, stray current interference, and potential differences by blocking the current conduction path between pipelines. Their design must take into account mechanical strength, insulation performance, and sealing reliability.

[0003] Existing gas insulation connectors typically only fulfill basic functions. However, if the gas itself contains impurities, these impurities can enter the water heater if the connection point at the gas meter is overlooked. This can affect the water heater's gas processing efficiency, potentially damage it, and cause impurities to accumulate in the internal pipes, affecting normal operation and making cleaning difficult. Furthermore, existing gas connectors neglect leakage detection at pipe connections, usually only detecting leakage when a malfunction occurs. Severe leakage can melt the protective layer of the metal hose, creating a significant safety hazard.

[0004] Based on the above reasons, this utility model designs a backflow preventer, filter, gas insulation, and leakage current connector. By improving the existing gas connector, it achieves the functions of filtering impurities and providing leakage current alarm without making significant structural changes, thereby extending the service life of gas equipment and pipelines and improving safety and stability. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a backflow preventer, filter, gas insulation, and leakage current connector. By improving the existing gas connector, without making significant changes to the structure, it achieves the functions of filtering impurities and providing leakage current alarm, thereby extending the service life of gas equipment and pipelines and improving safety and stability.

[0006] To achieve the above objectives, this utility model provides a backflow preventer, filter, gas insulation, and leakage current connector, comprising a housing, an inner thread inside the left side of the housing, an outer thread inside the right side of the housing, a filter screen inside the inner thread, a one-way valve inside the filter screen, and a contact spring connecting the inner and outer threads to a circuit board above each of the inner and outer threads. A photoelectric display panel electrically connected to the circuit board is located above the circuit board, and a cover plate is located above the photoelectric display panel.

[0007] A portion of the outer wire is located inside the outer casing.

[0008] The outer wire is a half-metal outer wire of the R system.

[0009] The inner wire is a half-metal inner wire of the G system.

[0010] The contact springs are located at opposite corners of the circuit board.

[0011] The filter screen is a 14-mesh filter screen.

[0012] Compared with the prior art, this utility model connects the inner and outer threads with a contact spring. In the absence of internal power supply, it can provide a bright display alarm for leakage of the inner and outer threads and the connected metal pipes. The leakage detection is unique with a false alarm rate of almost 0. Furthermore, the design of the filter screen and one-way valve can reduce the entry of impurities into the water heater and prevent water from entering the water heater after entering the gas pipe, thus avoiding the risk of electrical safety hazards and damage to structural components. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention from an axial perspective.

[0014] Figure 2 This is a schematic diagram of the AA cross-section of this utility model.

[0015] Figure 3 This is a three-dimensional perspective view of the present invention.

[0016] Figure 4 This is a schematic diagram of the contact spring position of this utility model.

[0017] Figure 5 This is a schematic cross-sectional view of the present invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Cover plate, 2. Circuit board, 3. Contact spring, 4. Filter screen, 5. Inner thread, 6. Outer shell, 7. One-way valve, 8. Outer thread, 9. Photoelectric display panel. Detailed Implementation

[0020] The present invention will now be further described with reference to the accompanying drawings.

[0021] See Figures 1-5 This utility model provides a backflow preventer filter gas insulation leakage connector, including a housing 6. An inner thread 5 is provided inside the left side of the housing 6, and an outer thread 8 is provided on the right side of the housing 6. A filter screen 4 is provided inside the inner thread 5, and a one-way valve 7 is provided inside the filter screen 4. The inner thread 5 and the outer thread 8 are each connected to a circuit board 2 through a contact spring 3. A photoelectric display panel 9 electrically connected to the circuit board 2 is provided on the top of the circuit board 2, and a cover plate 1 is provided on the top of the photoelectric display panel 9.

[0022] A portion of the outer wire 8 is located inside the outer casing 6.

[0023] The outer wire 8 is a half-metal outer wire of the R system.

[0024] The inner wire 5 is a half-metal inner wire of the G system.

[0025] The contact springs 3 are located at opposite corners of the circuit board 2.

[0026] Filter 4 is a 14-mesh filter.

[0027] Working principle:

[0028] See Figures 1-5 This utility model requires minimal debugging. After connecting the inner thread 5 and outer thread 8 of the gas insulation leakage connector to the pipeline and keeping them sealed, the metal contact springs 3 at the diagonal positions of the circuit board 2 are connected to the inner thread 5 and outer thread 8 respectively. This allows the current on the inner thread 5 and outer thread 8 to be connected to the circuit board 2. Since the circuit board 2 is also connected to the photoelectric display panel 9, when gas appliances such as water heaters or aging wiring cause leakage, electrical energy will also be transferred to the inner thread 5, outer thread 8, or the metal components connected to them. The leakage voltage is conducted to the circuit board 2 through the contact springs 3. After the circuit board 2 is powered on, it converts electrical energy into light energy and illuminates the photoelectric display panel 9, indicating that a leakage has occurred in the connector pipeline. Since the circuit board 2 itself does not receive external power, the illumination of the photoelectric display panel 9 must be due to internal leakage, thus improving the uniqueness of leakage detection. In addition, during normal operation, impurities in the gas are filtered by the 14-mesh filter 4, preventing impurities from entering the water heater and causing damage to its components, reduced gas processing efficiency, and difficulty in cleaning. With the addition of the one-way valve 7, water that may enter the gas pipeline due to leakage, condensation, etc., will not flow into the water heater or other gas appliances.

[0029] The above are merely preferred embodiments of this utility model, intended only to aid in understanding the method and core concept of this application. The scope of protection of this utility model is not limited to the above embodiments; all technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the scope of protection of this utility model.

[0030] This invention comprehensively solves the shortcomings of existing gas insulation joints in terms of leakage detection and warning. By using a non-powered circuit board in conjunction with a contact spring design that connects internal and external threads, it can promptly alarm for leakage inside gas equipment, joints, and even metal pipelines, improving the safety of the joint. It can also filter gas impurities, improve gas efficiency, protect related equipment, and is easier to clean and maintain, thus possessing good application potential.

Claims

1. A backflow preventer, filter, gas insulation, and leakage current connector, comprising a housing (6), characterized in that, An inner wire (5) is provided inside the left side of the outer casing (6), and an outer wire (8) is provided on the right side of the outer casing (6). A filter screen (4) is provided inside the inner wire (5), and a one-way valve (7) is provided inside the filter screen (4). The inner wire (5) and the outer wire (8) are each connected to the circuit board (2) by a contact spring (3). A photoelectric display panel (9) electrically connected to the circuit board (2) is provided above the circuit board (2), and a cover plate (1) is provided above the photoelectric display panel (9).

2. The anti-reverse flow filter gas insulation leakage connector according to claim 1, characterized in that, A portion of the outer filament (8) is disposed inside the outer casing (6).

3. The anti-reverse flow filter gas insulation leakage connector according to claim 2, characterized in that, The outer wire (8) is a half-metal outer wire made of R.

4. The anti-reverse flow filter gas insulation leakage connector according to claim 1, characterized in that, The inner wire (5) is a half-metal inner wire of the G system.

5. The anti-reverse flow filter gas insulation leakage connector according to claim 1, characterized in that, The contact springs (3) are located at opposite corners of the circuit board (2).

6. The anti-reverse flow filter gas insulation leakage connector according to claim 1, characterized in that, The filter screen (4) is a 14-mesh filter screen.

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