High-stability wiring structure for gas meter
By welding gold-plated copper needles onto the gas meter and wrapping the connecting wires with injection-molded shells, the problem of gas meter terminal leakage was solved, achieving a wiring structure with high stability and high production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-24
AI Technical Summary
When gas meters on the market are connected via pins, there is a risk of gas leakage at the terminals, which reduces safety.
The column and connecting wire are welded together, and the connection is wrapped with an injection molded shell. Gold-plated copper pins are directly welded onto the PCB board to ensure that the injection molded shell and the gas meter's steel shell are connected in a corresponding manner to prevent gas leakage.
This achieves highly stable wiring for gas meters, preventing gas leaks and improving production efficiency and safety.
Smart Images
Figure CN224036649U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sealed signal switching connector for ultrasonic gas meter technical field, especially a high stability wiring structure for gas meter. BACKGROUND
[0002] The oval PCB of the gas meter is welded with 2*6 pin rows on one side, facing outward; the other side has 6 holes on each side, which can be welded with 1PIN to 6PIN female seat, facing inward, the PCB assembly is changed into a sealed switching column product by injection molding, the plastic shape corresponds to the gas meter steel shell opening, and the gas does not leak at the opening after installation, and the 12PIN signal connection effect inside and outside the steel shell is achieved.
[0003] However, since the female seat product on the market is completed by inserting the needle, there is a certain gap between the needle and the pin hole, so there is a risk of gas leakage in one thousandth of the wiring column, which reduces the safety of the gas meter during use. INVENTION CONTENTS
[0004] The utility model discloses a high stability wiring structure for gas meter, which is proposed to solve the problem of reduced safety of the gas meter during use due to the risk of gas leakage in one thousandth of the wiring column caused by the female seat product on the market being completed by inserting the needle.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high stability wiring structure for gas meter, comprising a column, an injection molding shell and a connecting wire, the column and the connecting wire are connected by welding, the injection molding shell is wrapped outside the connecting part of the column and the connecting wire, a plurality of insertion holes are formed on the surface of the column, and the number of insertion holes matches the number of connecting wires.
[0006] The effect of the above-mentioned components is that in the present application, the female seat and the pin connection at the PCB of the gas meter are replaced, the gold-plated copper needle is directly welded on the hole on the inward side of the PCB, the connecting wire is connected on the outside of the gold-plated copper needle through the column wrapping, the injection molding shell corresponds to the opening of the steel shell of the gas meter, the gas does not leak at the opening after installation, and the 12PIN signal connection effect inside and outside the steel shell is achieved, which can avoid the problem of gas leakage of the PCB wiring column of the gas meter as much as possible.
[0007] Preferably, the injection molding shell is a sealed product formed by injection molding.
[0008] The effect of the above-mentioned components is that the wiring column of the present application is integrally welded by first welding the connecting wire and the column, and then making the injection molding material wrap the column to form an injection molding shell, which is more stable and efficient than the existing product needle welding and glue filling, which is not easy to control, and the glue is easy to fail, and the production efficiency is low.
[0009] Preferably, it further comprises a protection assembly, the protection assembly comprises a first rubber ring, a connecting rod and a second rubber ring, the first rubber ring and the second rubber ring are connected through the connecting rod, and the side, away from the connecting rod, of the second rubber ring is fixedly connected with a plastic ring, and two rectangular grooves are formed in one side of the injection molding shell.
[0010] The above-mentioned component achieves the effects that when the injection molding shell is produced, the rectangular grooves can be left on both sides of the injection molding shell, when the wiring structure is wired, the first rubber ring can be sleeved outside the connecting line from the bottom end of the connecting line, moved towards the injection molding shell, and when close to the outside of the injection molding shell, the first rubber ring and the second rubber ring are deformed to expand the diameter, so that the first rubber ring is sleeved on the waist position of the injection molding shell from the bottom end of the injection molding shell, the two connecting rods are located inside the two rectangular grooves outside the injection molding shell, the plastic ring is installed on one side of the bottom end of the injection molding shell, and after the connection of the column and the PCB is completed, the plastic ring can protect and reinforce the outside of the connecting line, so that the angle between the end of the connecting line close to the injection molding shell and the injection molding shell is kept as much as possible, and the connecting line is prevented from being deviated by a large angle to cause the connection between the column and the injection molding shell to be loose and cracked and affect the use effect, thereby further improving the stability of the wiring structure in use.
[0011] Preferably, the surface of the bottom end edge of the injection molding shell is arc-shaped.
[0012] The above-mentioned component achieves the effects that when the first rubber ring is sleeved on the arc-shaped edge of the bottom end of the outer surface of the injection molding shell, the first rubber ring is more easily pushed to expand through the bottom end of the injection molding shell and enter the waist position of the injection molding shell.
[0013] Preferably, the outside of the plastic ring is fixedly connected with a plurality of convex strips, and the convex strips are circumferentially distributed on the outside of the plastic ring.
[0014] The above-mentioned component achieves the effects that the plastic ring can be more conveniently pulled or pushed to control the overall movement of the protection assembly for disassembly and assembly by holding the convex strips on the outside of the plastic ring.
[0015] Preferably, the inner wall of the plastic ring is fixedly connected with a rubber ring, and the rubber ring is located on the inside of the bottom end edge of the plastic ring.
[0016] The above-mentioned component achieves the effects that when the plastic ring is located outside the connecting line, the connecting line can be slightly deviated and further protected at the contact position between the connecting line and the plastic ring, so that the wear of the outside of the connecting line is reduced.
[0017] Compared with the prior art, the utility model has the advantages and positive effects that:
[0018] By replacing the female seat and pin connection at the PCB on the gas meter, the gold-plated copper pin is directly welded on the hole on the inner side of the PCB, the connecting wire is connected on the outside of the gold-plated copper pin through the column wrapping, and the injection molding shell corresponds to the opening of the steel shell of the gas meter, so that the gas does not leak after the opening is installed.
[0019] The connection post of the present application is integrally formed by first welding the connecting wire and the column, and then wrapping the column with injection molding raw materials to form an injection molding shell. Compared with the existing product pin lead welding and then glue filling, it is not easy to control, the glue time is easy to fail, and the production efficiency is low. The situation is more stable and efficient. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;
[0021] Figure 2 It is a three-dimensional structure schematic diagram of the utility model at the injection molding shell;
[0022] Figure 3 It is a three-dimensional structure schematic diagram of the utility model at the column;
[0023] Figure 4 It is a three-dimensional structure schematic diagram of the utility model at the injection molding shell;
[0024] Figure 5 It is a three-dimensional structure schematic diagram of the utility model at the plastic ring.
[0025] Legend: 1, column; 2, injection molding shell; 3, connecting wire; 4, protection assembly; 41, rectangular groove; 42, first rubber ring; 43, connecting rod; 44, second rubber ring; 45, plastic ring; 46, convex strip; 47, rubber ring. DETAILED DESCRIPTION
[0026] Example 1, as Figures 1-2As shown, a high-stability wiring structure for a gas meter includes a column body 1, an injection molding shell 2, and a connecting wire 3. The column body 1 is connected to the connecting wire 3 by welding. The injection molding shell 2 is wrapped outside the connection between the column body 1 and the connecting wire 3. The surface of the column body 1 is provided with a plurality of insertion holes, the number of which matches that of the connecting wire 3. In this application, the female socket at the PCB of the gas meter is replaced and connected with the pin needle. The gold-plated copper needle is directly welded on the hole on the inner side of the PCB. The connecting wire 3 is connected to the outside of the gold-plated copper needle through the column body 1. The injection molding shell 2 corresponds to the opening of the steel shell of the gas meter. After installation, the gas does not leak at the opening. It achieves the 12PIN signal connection between the inside and outside of the steel shell. It avoids the problem of gas leakage of the PCB wiring column of the gas meter as much as possible. The injection molding shell 2 is a sealed product formed by injection molding. The wiring column of the present application is welded by first connecting the connecting wire 3 and the column body 1, and then making the injection molding material wrap the column body 1 to form the injection molding shell 2. Compared with the existing product, the needle is drawn out and welded, and then the glue is poured. It is not easy to control, and the glue is easy to fail. The low production efficiency is more stable and efficient.
[0027] As shown in Embodiment 2, Figures 3-5 A high-stability wiring structure for a gas meter also includes a protection assembly 4. The protection assembly 4 includes a first rubber ring 42, a connecting rod 43, and a second rubber ring 44. The first rubber ring 42 and the second rubber ring 44 are connected by the connecting rod 43. The second rubber ring 44 is fixedly connected with a plastic ring 45 on the side away from the connecting rod 43. Two rectangular grooves 41 are provided on one side of the injection molding shell 2. When the injection molding shell 2 is produced, the rectangular grooves 41 can be left empty on both sides of the injection molding shell 2. When the wiring structure is wired, the first rubber ring 42 can be sleeved outside the connecting wire 3 from the bottom end of the connecting wire 3 and moved towards the injection molding shell 2. When it is close to the outside of the injection molding shell 2, the first rubber ring 42 and the second rubber ring 44 are deformed and expanded in diameter. The first rubber ring 42 passes through the bottom end of the injection molding shell 2 and is sleeved at the waist position of the injection molding shell 2. The two connecting rods 43 are located inside the two rectangular grooves 41 outside the injection molding shell 2. The plastic ring 45 is installed on the bottom end side of the injection molding shell 2. After the connection between the column body 1 and the PCB is completed, the outside of the connecting wire 3 can be protected and reinforced by the plastic ring 45. The angle between the end of the connecting wire 3 close to the injection molding shell 2 and the injection molding shell 2 is kept as flat as possible. The connection between the connecting wire 3 and the column body 1 and the injection molding shell 2 is not loose and cracked, which affects the use effect. The stability of the wiring structure during use is further improved.
[0028] As shown in Embodiment 2, Figures 3-5 In this embodiment, the surface of the bottom edge of the injection molding shell 2 is arc-shaped. When the first rubber ring 42 is sleeved at the arc-shaped edge of the bottom end of the outer surface of the injection molding shell 2, it is easier to push the first rubber ring 42 to expand and pass through the bottom end of the injection molding shell 2 to the waist position of the injection molding shell 2.
[0029] Referring to Figures 3-5 In the embodiment, the outer side of the plastic ring 45 is fixedly connected with a plurality of protrusions 46, which are circumferentially distributed on the outer side of the plastic ring 45. The protrusions 46 on the outer side of the plastic ring 45 can be more conveniently pulled or pushed to control the overall movement of the protection assembly 4 for disassembly. The inner wall of the plastic ring 45 is fixedly connected with a rubber ring 47, which is located on the inner side of the bottom end edge of the plastic ring 45. The rubber ring 47 is arranged to enable the connection line 3 to be slightly deflected when the plastic ring 45 is located on the outer side of the connection line 3, and to further protect the contact between the connection line 3 and the plastic ring 45, thereby reducing the wear on the outer side of the connection line 3.
[0030] Working principle:
[0031] I. When connecting the gas meter, 2*6 pins are welded on one side of the elliptical PCB board of the gas meter, facing outward. The other side has 6 holes on each side, and 1PIN to 6PIN gold-plated copper pins can be welded, facing inward. The connection column is integrally welded by first welding the connection line 3 and the column body 1, and then wrapping the column body 1 with injection molding material to form an injection molding shell 2, which also wraps the gold-plated copper pins. The plastic shape corresponds to the opening of the steel shell of the gas meter. After installation, the gas does not leak at the opening, and the 12PIN signal connection between the inside and outside of the steel shell is achieved.
[0032] II. When cooperating with the protection assembly 4, the injection molding shell 2 produced has rectangular grooves 41 on both sides. When connecting the line structure, the first rubber ring 42 can be moved towards the direction of the injection molding shell 2 by being sleeved on the outer side of the connection line 3 at the bottom end of the connection line 3. When it is close to the outer side of the injection molding shell 2, the first rubber ring 42 and the second rubber ring 44 are deformed to expand the diameter, so that the first rubber ring 42 passes through the bottom end of the injection molding shell 2 and is sleeved on the waist position of the injection molding shell 2, and the two connecting rods 43 are located inside the two rectangular grooves 41 on the outer side of the injection molding shell 2. The plastic ring 45 is installed on the bottom end side of the injection molding shell 2. After the column body 1 is connected with the PCB board, the plastic ring 45 can protect and reinforce the outer side of the connection line 3.
[0033] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and alteration of the above embodiments without departing from the technical content of the present application, according to the technical essence of the present application, still belong to the protection scope of the present application. In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connecting" should be understood in a broad sense. For example, it can be fixed connection, detachable connection or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediate medium; and it can be internal communication of two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
Claims
1. A high-stability wiring structure for a gas meter, comprising a column (1), an injection-molded shell (2) and a connecting wire (3), characterized in that: The column (1) is connected with the connecting line (3) by welding, the injection shell (2) is wrapped outside the connection between the column (1) and the connecting line (3), the surface of the column (1) is provided with a plurality of insertion holes, and the number of the insertion holes matches that of the connecting line (3).
2. A high stability wiring structure for a gas meter according to claim 1, characterized in that: The injection shell (2) is a sealed product formed by injection molding.
3. A high stability wiring structure for a gas meter according to claim 1, characterized in that: Further comprising a protection assembly (4), the protection assembly (4) comprises a first rubber ring (42), a connecting rod (43) and a second rubber ring (44), the first rubber ring (42) and the second rubber ring (44) are connected through the connecting rod (43), one side of the second rubber ring (44) away from the connecting rod (43) is fixedly connected with a plastic ring (45), and one side of the injection shell (2) is provided with two rectangular grooves (41).
4. A high stability wiring structure for a gas meter according to claim 3, characterized in that: The surface of the bottom end edge of the injection shell (2) is arc-shaped.
5. A high stability wiring structure for a gas meter according to claim 3, wherein: The outer side of the plastic ring (45) is fixedly connected with a plurality of convex strips (46), and the convex strips (46) are circumferentially distributed on the outer side of the plastic ring (45).
6. A high stability wiring structure for a gas meter according to claim 3, characterized in that: The inner wall of the plastic ring (45) is fixedly connected with a rubber ring (47), and the rubber ring (47) is located on the inner side of the bottom end edge of the plastic ring (45).