CN219350712U

CN219350712U - Gas table terminal subassembly

Info

Publication number: CN219350712U
Application number: CN202223411084.7U
Authority: CN
Inventors: 王增; 汪志远; 厉恺杰; 魏佳敏; 张伟
Original assignee: Zhejiang Viewshine Intelligent Meter Co Ltd
Current assignee: Zhejiang Viewshine Intelligent Meter Co Ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-07-14
Anticipated expiration: 2032-12-20

Abstract

The utility model relates to a gas meter binding post assembly, which comprises an outer multi-core wire and an inner multi-core wire; a pin header is sleeved outside the pin header, and molding rubber is assembled between the outer side of the pin header and the inner side of the pin header; the wiring terminal assembly is simple in structure and ingenious in design, can effectively achieve a threading function, and can form airtight protection on threading parts; the pin header can form effective spacing at the welding position of the lead, so that the short circuit is prevented; after bonding wires, wrapping and injection molding are carried out, so that a single-core wire threading process is replaced, multi-core wires can be adopted at the front end and the rear end, and open circuits caused by breakage, virtual welding and virtual pressing of the single-core wire cores are greatly improved; and the whole process can be realized by adopting equipment, so that the production efficiency is greatly improved.

Description

Gas table terminal subassembly

Technical Field

The utility model belongs to the technical field of gas meter accessories, and particularly relates to a gas meter binding post assembly.

Background

When the existing gas meter is designed and manufactured, internal and external signal communication needs to be realized through threading, and the existing binding posts are generally shown in fig. 1 and 2. The universal socket consists of an external connector 1-1, a multi-core wire 1-2-1, a single-core wire 1-2-2, a binding post 1-3, rubber 1-4, a gland 1-5 and an internal connector 1-6. The rubber shape is generally round platform shape, and upper and lower plane has a plurality of apertures, and aperture of aperture is slightly less than single core wire 1-2-2, and inside the wiring post was plugged into after the wire passed rubber, the wiring post is inside to be shuttle, can prevent that rubber from wearing out from the front end, and rubber is installed in place after extrusion seal with the wiring post, and the rear portion adopts the gland spacing, prevents that rubber from coming off from the rear portion. Because of the threading technology and the gas tightness requirement, the lead 1-2-2 can only use a single-core wire. When the single core wire is connected and crimped with the connector, the conductive reliability is not as good as that of the multi-core wire. Therefore, a group of multicore wires 1-2-1 are welded on the outside and then are in pressure connection with the external plug-in unit 1-1, and the inside is leaked along the gap between the wire skin and the wires, so that the butt welding is generally not performed, only the single-core wires 1-2-2 are in pressure connection with the internal plug-in unit 1-6, and then the internal plug-in unit 1-6 is protected by adopting the modes of filling and sealing and the like.

The disadvantage of this scheme is that the internal connector can only be crimped with a single core wire, and the conduction reliability is not guaranteed, and the single core wire is easy to break during wire stripping welding, causing an open circuit. And the stations such as threading and welding have higher requirements on manual operation and lower efficiency.

In view of the above-described problems, improvements are needed.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides the gas meter binding post assembly which has the advantages of simple and reasonable structure and ingenious design, can effectively realize the threading function, and can form airtight protection on threading parts.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a gas meter binding post assembly comprises an outer multi-core wire and an inner multi-core wire; the connecting part of the outer multi-core wire and the inner multi-core wire is provided with a pin, the outer side of the pin is sleeved with a binding post, and the outer side of the pin and the inner side of the binding post are provided with molding rubber.

As a preferable mode of the utility model, an external plug-in unit is inserted at the outer side of the outer multi-core wire.

As a preferable mode of the utility model, an inner connector is inserted at the outer side of the inner multi-core wire.

As a preferable mode of the utility model, the binding post comprises a positioning pipe, a hexagonal nut is sleeved on the positioning pipe, a through hole for a wire to pass through is formed in the positioning pipe, and the pin header and the molding rubber are arranged in the through hole.

As a preferable mode of the utility model, a thread section is arranged on one end of the outer wall of the positioning tube, which is close to the external plug-in unit.

As a preferable mode of the utility model, a step is formed between the hexagonal nut and the positioning tube.

In a preferred embodiment of the present utility model, the outer wall of the positioning tube is inclined near one end of the inner connector.

As a preferable mode of the present utility model, the molded rubber includes a guide portion, a positioning portion and a connecting portion; the guiding part, the positioning part and the connecting part are fixedly connected and integrally formed.

As a preferable mode of the utility model, the positioning part is provided with a groove, and a lug matched with the groove is correspondingly formed in the binding post and is clamped in the groove.

In a preferred embodiment of the present utility model, an inclined surface is formed at an end of the guide portion.

The beneficial effects of the utility model are as follows:

the wiring terminal assembly is simple in structure and ingenious in design, can effectively achieve a threading function, and can form airtight protection on threading parts. The pin header can form an effective interval at the welding position of the lead, so that the short circuit is prevented. After bonding wires, the single-core wire threading process is replaced by wrapping and injection molding, so that multi-core wires can be adopted at the front end and the rear end, and the open circuit caused by breakage, virtual welding and virtual pressure of the single-core wire core is greatly improved. And the whole process can be realized by adopting equipment, so that the production efficiency is greatly improved.

Drawings

FIG. 1 is a characteristic view of a prior art gas meter post assembly;

FIG. 2 is an exploded view of a prior art gas meter post assembly;

FIG. 3 is a characteristic view of a gas meter post assembly according to an embodiment of the present utility model;

FIG. 4 is a front cross-sectional view of a gas meter post assembly according to an embodiment of the present utility model;

FIG. 5 is an exploded view of a gas meter post assembly according to an embodiment of the present utility model;

FIG. 6 is a schematic structural view of a terminal according to an embodiment of the present utility model;

FIG. 7 is a schematic view of the structure of a molded rubber according to an embodiment of the present utility model;

reference numerals in the drawings: the external connector 3-1, the external multi-core wire 3-2, the pin header 3-3, the internal multi-core wire 3-4, the internal connector 3-7, the binding post 4, the positioning tube 4-1, the through hole 4-2, the thread section 4-3, the hexagonal nut 4-4, the inclined part 4-5, the bump 4-6, the molding rubber 5, the guiding part 5-1, the positioning part 5-2, the connecting part 5-3, the groove 6 and the inclined surface 7.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Examples:

as shown in fig. 3-5, a gas meter terminal assembly includes an outer multi-core wire 3-2 and an inner multi-core wire 3-4; the connection part of the outer multi-core wire 3-2 and the inner multi-core wire 3-4 is provided with a pin 3-3, the outer side of the pin 3-3 is sleeved with a binding post 4, and the outer side of the pin 3-3 is provided with molding rubber 5 at the inner side of the binding post 4; wherein, the outer side of the outer multi-core wire 3-2 is inserted with an outer plug-in unit 3-1, and the outer side of the inner multi-core wire 3-4 is inserted with an inner plug-in unit 3-7.

The outer multi-core wire 3-2 and the inner multi-core wire 3-4 are respectively connected with bonding wires at two ends of the pin header 3-3 after cutting the required length, and the operation can be completed by adopting equipment; and (5) welding the wires, and then putting the wires into a die to perform injection molding on the rubber 5. The molding rubber 5 can fully wrap the welding line to form a closed structure.

As shown in fig. 6, the binding post 4 comprises a positioning tube 4-1, a hexagonal nut 4-4 is sleeved on the positioning tube 4-1, a through hole 4-2 for a wire to pass through is formed in the positioning tube 4-1, and a pin header 3-3 and a molding rubber 5 are arranged in the through hole 4-2.

The outer wall of the positioning tube 4-1 is provided with a thread section 4-3 near one end of the external plug-in unit 3-1; when the gas meter is installed, the thread section 4-3 of the positioning pipe 4-1 penetrates through the installation hole of the gas meter shell from inside to outside and is connected with the nut through the thread section 4-3, so that the gas meter is installed and fastened, and the gas meter is convenient and quick to install; in addition, the O-shaped ring is arranged at the root of the thread section 4-3 in a threaded connection mounting mode, extrusion is formed between the flange surface of the hexagonal nut 4-4 and the inner wall of the gas meter shell, and the sealing effect of the gas meter shell is effectively guaranteed.

A step is formed between the hexagonal nut 4-4 and the positioning tube 4-1, and the outer wall of the positioning tube 4-1 is an inclined part 4-5 near one end part of the inner connector 3-7.

As shown in fig. 7, the molding rubber 5 includes a guide portion 5-1, a positioning portion 5-2 and a connecting portion 5-3; the guiding part 5-1, the positioning part 5-2 and the connecting part 5-3 are fixedly connected, and are integrally formed, and an inclined surface 7 is formed at the end part of the guiding part 5-1.

The positioning portion 5-2 is formed with a groove 6, and correspondingly, the lug 4-6 matched with the groove 6 is formed in the binding post 4, and the lug 4-6 is clamped in the groove 6.

The outside of the molding rubber 5 is sealed with the binding post in an extrusion way, the molding rubber 5 can be effectively limited by the inner step-shaped groove 6, the front and back escape of the molding rubber is prevented, and the molding rubber 5 is sealed with the side wall of the binding post in an extrusion way.

Meanwhile, preferably, the wire assembly after welding wires passes through the binding post, and injection molding or glue filling is carried out on the inside of the direct-to-wire binding post to replace the molding rubber 5.

To further protect the rear of the rubber member from coming out, the rear of the post 4 may be swaged inwardly.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model; thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals in the figures are used more herein: the external connector 3-1, the external multi-core wire 3-2, the pin header 3-3, the internal multi-core wire 3-4, the internal connector 3-7, the binding post 4, the positioning tube 4-1, the through hole 4-2, the thread section 4-3, the hexagonal nut 4-4, the inclined part 4-5, the convex block 4-6, the molding rubber 5, the guiding part 5-1, the positioning part 5-2, the connecting part 5-3, the groove 6, the inclined surface 7 and other terms are not excluded; these terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. A gas meter terminal assembly, characterized in that: comprises an outer multi-core wire (3-2) and an inner multi-core wire (3-4); the connection part of the outer multi-core wire (3-2) and the inner multi-core wire (3-4) is provided with a pin (3-3), the outer side of the pin (3-3) is sleeved with a binding post (4), and the outer side of the pin (3-3) and the inner side of the binding post (4) are provided with molding rubber (5).

2. The gas meter post assembly of claim 1 wherein: an external plug-in unit (3-1) is inserted at the outer side of the outer multi-core wire (3-2).

3. The gas meter post assembly of claim 1 wherein: an inner connector (3-7) is inserted at the outer side of the inner multi-core wire (3-4).

4. The gas meter post assembly of claim 1 wherein: the wiring terminal (4) comprises a positioning pipe (4-1), a hexagonal nut (4-4) is sleeved on the positioning pipe (4-1), a through hole (4-2) for a wire to pass through is formed in the positioning pipe (4-1), and the pin header (3-3) and the molding rubber (5) are arranged in the through hole (4-2).

5. The gas meter post assembly of claim 4, wherein: the outer wall of the positioning tube (4-1) is provided with a thread section (4-3) near one end of the external plug-in unit (3-1).

6. The gas meter post assembly of claim 4, wherein: a step is formed between the hexagonal nut (4-4) and the positioning tube (4-1).

7. The gas meter post assembly of claim 6, wherein: the outer wall of the positioning tube (4-1) is an inclined part (4-5) near one end part of the inner connector (3-7).

8. The gas meter post assembly of claim 1 or 4, wherein: the molding rubber (5) comprises a guide part (5-1), a positioning part (5-2) and a connecting part (5-3); the guiding part (5-1), the positioning part (5-2) and the connecting part (5-3) are fixedly connected and integrally formed.

9. The gas meter post assembly of claim 8, wherein: the positioning part (5-2) is provided with a groove (6), and correspondingly, the binding post (4) is internally provided with a lug (4-6) matched with the groove (6), and the lug (4-6) is clamped in the groove (6).

10. The gas meter post assembly of claim 8, wherein: an inclined surface (7) is formed at the end of the guide part (5-1).