Household self-disassembly-preventing gas meter connector
By designing an anti-tamper cap and an inverted trapezoidal notch fit together on the gas meter connector, combined with a limit pull ring and a sealing gasket, the problem of gas meter connectors being easily disassembled by non-professionals is solved, thus improving the safety and reliability of the gas system.
Patent Information
- Application Number
- CN202520030852.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing gas meter connections cannot effectively prevent unauthorized disassembly, posing a safety hazard.
A gas meter connector structure was designed, including a connecting pipe, an anti-tamper cap, a nut, a circular ring, and a limiting pull ring. The structure utilizes the triangular prism protrusion on the inner wall of the anti-tamper cap to cooperate with the inverted trapezoidal notch of the circular ring to prevent unauthorized disassembly by non-professionals. The structure also achieves locking through the deformation properties of polyvinyl chloride material, and the airtightness is improved by combining it with a sealing gasket.
It prevents unauthorized disassembly, improves the safety and reliability of the gas system, and prevents gas leaks and accidents.
Smart Images
Figure CN223783691U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of domestic anti-self-disassembly gas meter joint, belong to the connecting device (G01F15 / 18) technical field of instrument. BACKGROUND
[0002] With the development of social economy and the improvement of people's living standards, gas has become one of the indispensable energy in daily life. In the household gas equipment, gas meter and its joint are important components of the whole system, responsible for safely delivering gas to gas-using equipment. However, due to the lack of professional training, some users or maintenance personnel disassemble or change the gas meter joint by themselves, which may cause gas leakage, fire and even explosion, posing a serious threat to people's life and property safety.
[0003] To solve the above problems, some improved gas meter joints have appeared on the market, such as joints with enhanced sealing function and joints with leakage detection function. However, this still cannot fundamentally prevent non-professionals from disassembling or modifying the joint. Especially in the case of unauthorized users or attempts to self-repair, the existing joint design is difficult to effectively protect.
[0004] Therefore, there is an urgent need for a gas meter joint that can prevent unauthorized disassembly and has reliable sealing and durability to ensure the safe operation of the gas system. SUMMARY
[0005] The technical problem to be solved by the utility model is how to realize the anti-self-disassembly function of the household gas meter joint.
[0006] The technical solution proposed by the utility model to solve the above technical problem is: a household anti-self-disassembly gas meter joint, comprising a connecting pipe and a disassembly-preventing cap, one end of the connecting pipe is provided with a nut, and the disassembly-preventing cap covers the nut; the outer surface of the nut is provided with at least two annular pieces, and at least one inverted trapezoidal gap is provided on the annular piece closest to the other end of the connecting pipe; the inner wall of the disassembly-preventing cap forms a triangular prism-shaped protrusion, one side of the protrusion is downward and enters the interval of the annular piece from the inverted trapezoidal gap, and the side surface of the protrusion opposite to the one side is attached to the annular piece provided with the inverted trapezoidal gap and covers the inverted trapezoidal gap.
[0007] Further, the disassembly-preventing cap is made of polyvinyl chloride.
[0008] Further, a limiting pull ring is provided at the interval of the annular piece, and the limiting pull ring is composed of a handle and a notched annular ring.
[0009] Further, a sealing washer is provided in the nut.
[0010] The utility model discloses the beneficial effect is: because the circular ring piece of the other end of the closest connection pipe is equipped with at least one inverted trapezoidal gap, and the convex block one side angle of the inner wall three prism of the anti-disassembly cap is just downward, therefore the convex block can be relatively relaxedly clamped into the interval of the circular ring piece, make the anti-disassembly cap lock in the nut periphery. When the family member wants to dismantle privately, because the side of the convex block relative one side angle is pasted on the circular ring piece of being equipped with the inverted trapezoidal gap and covers the inverted trapezoidal gap, lead to the anti-disassembly cap to be unable to pull out smoothly, therefore protect the nut, play the function of preventing private dismantling. BRIEF DESCRIPTION OF DRAWINGS
[0011] The utility model discloses a kind of domestic anti-self-dismantling gas meter joints, which is further described below in conjunction with the drawings.
[0012] Figure 1 It is the overall structure schematic diagram of example domestic anti-self-dismantling gas meter joint.
[0013] Figure 2 It is the nut structure plan view of example domestic anti-self-dismantling gas meter joint.
[0014] Figure 3 It is Figure 2 The top view.
[0015] Figure 4 It is the nut structure perspective view of example domestic anti-self-dismantling gas meter joint.
[0016] Figure 5 It is the anti-disassembly cap structure schematic diagram of example domestic anti-self-dismantling gas meter joint.
[0017] Figure 6 It is Figure 5 The A direction schematic diagram.
[0018] Figure 7 It is the limiting pull ring schematic diagram of example domestic anti-self-dismantling gas meter joint.
[0019] In the drawing: 1, connection pipe; 2, anti-disassembly cap; 3, nut; 4, circular ring piece; 5, inverted trapezoidal gap; 6, convex block; 7, limiting pull ring; 8, sealing washer. DETAILED DESCRIPTION
[0020] Embodiment
[0021] A kind of domestic anti-self-dismantling gas meter joint of the embodiment is as Figure 1 Shown, including connection pipe 1 and anti-disassembly cap 2, anti-disassembly cap 2 is made of polyvinyl chloride (pvc), can be deformed under the action of external force. One end of connection pipe 1 is equipped with nut 3, and anti-disassembly cap 2 covers nut 3. As Figure 2 , 3As shown in Figs. 3 and 4, two circular ring pieces 4 are arranged at intervals on the outer surface of the nut 3, and two inverted trapezoidal openings 5 are arranged on the circular ring piece 4 closest to the other end of the connector 1. Figure 5 As shown in Figs. 3 and 4, 6 As shown in Figs. 3 and 4, the inner wall of the tamper-proof cap 2 is formed with a triangular protrusion 6, when the tamper-proof cap 2 is pressed down, one side of the protrusion 6 is pressed in the inverted trapezoidal opening 5 and deformed, and finally enters the interval of the circular ring piece 4 from the inverted trapezoidal opening 5, and then the protrusion 6 restores its shape, and the tamper-proof cap 2 can be rotated due to the sliding of the protrusion 6 in the interval of the circular ring piece 4. When someone wants to disassemble it privately, even if the protrusion 6 in the tamper-proof cap 2 is aligned with the inverted trapezoidal opening 5, it will not be pulled out because the side surface of the protrusion 6 relative to the side edge has been stretched and covered the inverted trapezoidal opening 5 on the circular ring piece 4, thereby protecting the nut.
[0022] As shown in Figs. 3 and 4, Figure 1 As shown in Figs. 3 and 4, Figure 7 As shown in Figs. 3 and 4, the interval of the circular ring piece 4 is sleeved with a limiting pull ring 7, and the limiting pull ring 7 is composed of a handle and a circular ring with a notch. The protrusion 6 on the inner wall of the tamper-proof cap 2 is prevented from being pressed into the interval of the circular ring piece 4 during transportation. When the tamper-proof cap 2 needs to be installed, the limiting pull ring 7 is pulled to release the interval space of the circular ring piece 4.
[0023] In addition, the nut 3 is also provided with a sealing washer 8, and in actual installation, when the nut 3 is screwed onto the gas meter, the nut 3 will press the sealing washer 8 to improve the airtightness.
[0024] The utility model is not limited to the above-mentioned embodiments, and any technical solution formed by equivalent replacement falls within the protection scope required by the utility model.
Claims
1. A household anti-self-disassembly gas meter connector, comprising a connecting pipe and an anti-disassembly cap, wherein one end of the connecting pipe is provided with a nut, and the anti-disassembly cap covers the nut; characterized in that: The outer surface of the nut is provided with at least two annular pieces spaced apart, and the annular piece closest to the other end of the connector is provided with at least one inverted trapezoidal notch; the inner wall of the tamper cap is formed with a triangular prism protrusion, one side of the protrusion facing down and entering the gap of the annular pieces through the inverted trapezoidal notch, and the side of the protrusion opposite to the side of the side of the protrusion abuts against the annular piece with the inverted trapezoidal notch and covers the inverted trapezoidal notch.
2. The household anti-self-disassembly gas meter connector according to claim 1, characterized in that: The tamper-evident cap is made of polyvinyl chloride.
3. The household anti-self-disassembly gas meter connector according to claim 1, characterized in that: Limiting pull rings are fitted at the intervals of the circular plates. The limiting pull rings consist of a handle and a notched circular ring.
4. The household anti-self-disassembly gas meter connector according to claim 1, characterized in that: The nut contains a sealing washer.