Injection molding wire sealing head
By using welding adhesive to connect the interlaced electrical signal lines of the water meter to the inner wall of the plastic part through the interlaced notches, combined with sealing gaskets and tin plating, the problem of short circuits in the electrical signal lines of the water meter is solved, achieving higher waterproof performance and service life.
Patent Information
- Application Number
- CN202423256274.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-29
AI Technical Summary
The electrical signal wires of existing water meters are prone to water inflow and short circuits when passing through the sealed structure.
The first notch is staggered and has a welding adhesive inside it to connect with the inner wall of the threaded plastic part, preventing water from flowing between the wires. The welding adhesive further isolates the water, and the waterproof performance is improved by combining a sealing gasket and a tin plating layer.
It effectively avoids short circuits between wires, reduces the probability of short circuits, and improves the waterproof performance and service life of the water meter.
Smart Images

Figure CN223713559U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water meter technology, and in particular to an injection-molded wire sealing head. Background Technology
[0002] Currently, water meters require electrical signal lines to pass through the meter glass to connect to external devices. Therefore, water meters have high requirements for the waterproofing of the sealing structure. The current method is to pass the wire through the base and seal it. However, since holes need to be made in the base to install the wire, water can flow into the wire through the holes, causing a short circuit. Utility Model Content
[0003] (I) Purpose of the utility model
[0004] To address the technical problems existing in the background art, this utility model proposes an injection-molded wire sealing head. The staggered arrangement of the first notches can effectively prevent short circuits between multiple wires. Furthermore, by providing welding adhesive within the first notches and connecting it to the inner wall of the wire threading plastic part, it can effectively prevent water from flowing onto the wires and causing short circuits. The welding adhesive can further isolate the first notches, thereby further reducing the probability of short circuits.
[0005] (II) Technical Solution
[0006] This utility model provides an injection-molded wire sealing head, including a wire threading plastic part for installation. Multiple wires are arranged side by side inside the wire threading plastic part. Each of the multiple wires has a first notch that communicates with the wire core of the wire. Any two adjacent first notches are staggered. Welding adhesive is provided in the first notch. The multiple wires are connected to the inner wall of the wire threading plastic part.
[0007] Preferably, the multiple wires are welded to the inner wall of the threaded plastic part using the welding adhesive.
[0008] Preferably, waterproof adhesive is provided on the outer peripheral surface of multiple adjacent conductors.
[0009] Preferably, both ends of the threaded plastic part are provided with annular grooves, and a sealing gasket is detachably provided in the annular groove.
[0010] Preferably, the outer peripheral surfaces of both ends of the plurality of wires are provided with a tin plating layer.
[0011] Preferably, the conductor is a BVR conductor.
[0012] Preferably, the conductor is a seven-strand wire.
[0013] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0014] In this invention, the device can effectively prevent short circuits between multiple wires by using staggered first gaps. Furthermore, by providing welding adhesive in the first gaps and connecting it to the inner wall of the wire threading plastic part, it can effectively prevent water from flowing into the first gaps on the wires and causing short circuits. The welding adhesive can further isolate the first gaps, thereby further reducing the probability of short circuits. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the internal structure of an injection-molded wire sealing head proposed in this utility model.
[0016] Figure 2 This is a schematic diagram of the structure of the threaded plastic part in the injection-molded wire sealing head proposed in this utility model.
[0017] Reference numerals: 1. Threaded plastic part; 2. Wire; 3. Sealing gasket; 4. Tin plating layer. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] like Figure 1-2 As shown, the present invention proposes an injection-molded wire sealing head, which includes a wire threading plastic part 1 for installation. Multiple wires 2 are arranged side by side inside the wire threading plastic part 1. Each of the multiple wires 2 has a first notch that communicates with the wire core of the wire 2. Any two adjacent first notches are staggered. Welding adhesive is provided in the first notch. The multiple wires 2 are connected to the inner wall of the wire threading plastic part 1.
[0022] In this invention, the device can effectively prevent short circuits between multiple wires 2 by using staggered first gaps. Furthermore, by providing welding adhesive in the first gaps and connecting it to the inner wall of the threaded plastic part 1, it can effectively prevent water from flowing into the first gaps on the wires 2 and causing short circuits. The welding adhesive can further isolate the first gaps, thereby further reducing the probability of short circuits.
[0023] In an optional embodiment, multiple wires 2 are welded to the inner wall of the threading plastic part 1 by the welding adhesive. When the wires 2 are welded to the threading plastic part 1 by the welding adhesive, a welding layer is formed at the first notch, which can effectively prevent water from entering the first notch and causing a short circuit.
[0024] In an optional embodiment, waterproof adhesive is provided on the outer peripheral surface of multiple adjacent conductors 2. During use, improper storage or installation of the conductors may cause cracks on the outer surface of the conductors. The waterproof adhesive can enter the cracks and effectively seal them. The waterproof adhesive can effectively prevent cracks from appearing on the surface of the conductors 2, so that water can enter the conductors 2 through the cracks and cause a short circuit.
[0025] In an optional embodiment, both ends of the threading plastic part 1 are provided with annular grooves, and sealing gaskets 3 are detachably provided in the annular grooves. The sealing gaskets 3 can effectively improve the sealing performance of the threading plastic part 1 during use, thereby effectively preventing water from entering the threading plastic part 1, thus further reducing the possibility of short hair. Furthermore, the sealing gaskets 3 are detachably set in the annular grooves, so that the sealing gaskets 3 in the annular grooves can be replaced according to the usage conditions, thereby improving the stability of the device during long-term use.
[0026] In an optional embodiment, a tin-plated layer 4 is provided on the outer peripheral surface of both ends of the plurality of wires 2. The tin-plated layer 4 can effectively form an oxide film on the surface of the wires 2, thereby preventing the wires 2 from being oxidized and improving the service life of the device.
[0027] In an optional embodiment, the conductor 2 is a BVR wire.
[0028] In an optional embodiment, the conductor 2 is a seven-strand wire.
[0029] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. An injection molded wire seal, characterized by, The utility model provides a wire installation structure, which comprises a threading plastic part (1) for installation, a plurality of wires (2) are arranged side by side in the threading plastic part (1), each of the plurality of wires (2) is provided with a first gap in communication with the core of the wire (2), any two adjacent first gaps are staggered, the first gap is provided with a welding glue, and the plurality of wires (2) are connected with the inner wall of the threading plastic part (1).
2. A wire seal according to claim 1, wherein The plurality of wires (2) are welded with the inner wall of the threading plastic part (1) by the welding glue.
3. A wire seal according to claim 1, wherein, The outer circumferential surface of the plurality of adjacent wires (2) is provided with waterproof glue.
4. A wire seal according to claim 1, wherein, The threading plastic part (1) is provided with an annular groove at both ends, and a sealing washer (3) is detachably arranged in the annular groove.
5. A wire seal according to claim 1, wherein, The outer circumferential surface of both ends of the plurality of wires (2) is provided with a tinning layer (4).
6. A wire seal according to claim 1, wherein, The wire (2) is a BVR wire.
7. A wire seal according to claim 1, wherein, The wire (2) is a seven-strand wire.