Hardware wiring terminal and wiring connector

Abstract

The utility model relates to the technical field of hardware terminals, and relates to a hardware wiring terminal and a wiring connector. A hardware wiring terminal comprises a cylinder formed by punching a sheet, two ends of the cylinder are respectively provided with a plurality of gaps, a pressing sheet is formed between two adjacent gaps, two ends of the cylinder are respectively provided with a limiting convex ring used for clamping a necking sleeve, and the limiting convex rings are located at the inner sides of the gaps. According to the utility model, the hardware wiring terminal is combined with the necking sleeve, the whole structure is simple, the manufacture is easy, and the cost is relatively low.

Description

Technical Field

[0001] This utility model relates to the field of hardware terminal technology, and specifically to a hardware terminal block and a wiring connector. Background Technology

[0002] During line maintenance, it is common to encounter damaged or repaired lines, requiring rewiring or replacement. Currently, most methods involve twisting two wires together and then wrapping them with insulating cloth. This method carries risks, as the insulating cloth is prone to aging in dry environments, exposing the wire cores and increasing the risk of malfunction. To address this, the applicant developed a connector, as described in patent application CN202421048703.7, "A Terminal Block and Connector." This patent introduces a connector technology that facilitates the electrical connection of two wires; however, due to the large number of components required and the time-consuming assembly, the cost is high. Therefore, a simpler connector structure needs to be developed. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a hardware terminal block and a wiring connector.

[0004] In one aspect, this utility model provides a simple hardware terminal block with relatively low manufacturing cost.

[0005] In another aspect, this utility model provides a wiring connector that includes the aforementioned metal wiring terminals, which is simple to assemble and has a relatively low cost.

[0006] A hardware terminal block, comprising:

[0007] The cylinder is formed by stamping sheet material. Multiple gaps are provided at both ends of the cylinder. A pressure plate is formed between two adjacent gaps. Each end of the cylinder is provided with a limiting protrusion for engaging the shrink sleeve. The limiting protrusion is located inside the gap.

[0008] Furthermore, the outer end of the pressing plate is bent outward or tilted to form an enlarged hole.

[0009] A wiring connector includes the aforementioned metal wiring terminals, and further includes a reducing sleeve fitted onto both ends of the metal terminals. The inner surface of the reducing sleeve is provided with a conical section, and the inner diameter and outer diameter of the conical section are small. The inner surface of the inner end of the reducing sleeve is provided with an annular groove that cooperates with the limiting protrusion.

[0010] Furthermore, the constricted sleeve includes an outer sleeve section that connects to the wire and an inner sleeve section that connects to the cylinder, with the two ends of the conical section connected to the outer sleeve section and the inner sleeve section, respectively.

[0011] Furthermore, one of the inner sleeve segments has an inner annular groove at its inner end, and the other inner sleeve segment has an outer annular groove at its inner end, with the two inner sleeve ends sleeved together.

[0012] Furthermore, an insulating sleeve is fitted over the middle of the cylinder, and the inner end of the inner sleeve section is fitted into the insulating sleeve.

[0013] The beneficial effects of this utility model are: This utility model adopts a combination of hardware terminals and shrink sleeves, with a simple overall structure, easy manufacturing, and relatively low cost. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first structure used in the wiring connector of this embodiment.

[0015] Figure 2 This is a schematic diagram of the second structure used in the wiring connector of this embodiment.

[0016] Figure 3 for Figure 1 An exploded view after the wires have been removed.

[0017] Figure 4 for Figure 2 An exploded view after the wires have been removed.

[0018] Figure 5 This is a cross-sectional view of a shrink sleeve.

[0019] Figure 6 This is a cross-sectional schematic diagram of a hardware terminal.

[0020] The reference numerals in the figures include:

[0021] 1—Reduced opening sleeve; 11—Inner sleeve section; 12—Conical section; 13—Outer sleeve section; 14—Annular groove; 2—Wire; 3—Cylinder; 31—Limiting protrusion ring; 32—Pressure plate; 33—Gap; 4—Insulating sleeve. Detailed Implementation

[0022] The utility model will now be described in detail with reference to the accompanying drawings. Figures 1 to 6 As shown.

[0023] Example 1: See Figure 6 A hardware terminal block includes: a cylinder 3 formed by stamping sheet material, with multiple gaps 33 at both ends of the cylinder 3, and a pressure plate 32 formed between two adjacent gaps 33. The cylinder 3 has a limiting protrusion 31 at both ends for engaging the constriction sleeve 1, and the limiting protrusion 31 is located inside the gap 33.

[0024] In this embodiment, the metal terminal block can be formed by sheet stamping. Before stamping into a cylinder 3, gaps 33 are punched out at both ends to create gaps 33 at both ends. Then, limiting protrusions 31 are stamped, and the two ends of the sheet are stamped near the middle, bending the two ends of the sheet outward to form protrusions. Then, the sheet is rolled into a cylinder 3, and the protrusions form the limiting protrusions 31. The overall structure is simple, the process is simple, it is easy to produce, and the cost is relatively low.

[0025] In application, the two ends of the cylinder 3 form connection parts, and the ends of the two guides are inserted into the connection parts respectively, forming a conductive path when energized. A gap 33 is set in the connection part so that when the wire 2 is matched, there can be an error between the outer diameter of the core wire of the wire 2 and the inner diameter of the connection part. If the outer diameter of the core wire is slightly larger, the connection part can be slightly squeezed by an expander, such as a cone, to expand the connection part; if the outer diameter of the core wire is slightly smaller, the core wire can be inserted first, and then the opening can be reduced by a shrinking device to wrap the core wire. Of course, the shrinking can also be done by a clamp or similar device.

[0026] Furthermore, the outer end of the pressure plate 32 is bent outward or tilted to form an enlarged hole (not shown in the figure).

[0027] When assembling with the core wire of conductor 2, the diameter of the core wire is usually similar to that of both ends of cylinder 3. When held or carried, the pressure plates 32 at both ends of cylinder 3 may be unintentionally subjected to pressure, causing them to bend inward. To avoid narrowing during assembly, which would prevent assembly, the outer end of the pressure plate 32 is slightly enlarged during manufacturing.

[0028] Example 2: See Figure 1 , Figure 2 , Figure 3 , Figure 4 A wiring connector includes the aforementioned hardware terminals and further includes a reduced sleeve 1 fitted onto both ends of the hardware terminals. The inner side of the reduced sleeve 1 is provided with a conical section 12, and the inner diameter and outer diameter of the conical section 12 are small. The inner side of the inner end of the reduced sleeve 1 is provided with an annular groove 14 that cooperates with the limiting protrusion.

[0029] In this embodiment, when connecting the wires 2, the two wires 2 are first inserted into the connection portions at both ends of the hardware terminal. The terminal is made of metal, such as aluminum or copper. During insertion, the reducing sleeve 1 is first placed on the wire 2. When the core wire is inserted into or passes through the connection portion, the reducing sleeve 1 slides towards the center of the hardware terminal. The minimum diameter of the reducing sleeve 1 is approximately equal to the outer diameter of the wire 2. As the reducing sleeve 1 transitions from the wire 2 to the connection portion, the reducing sleeve 1 gradually narrows towards the connection portion until the annular groove 14 of the reducing sleeve 1 engages with the limiting protrusion 31 on the inner side of the connection portion.

[0030] The connection part is narrowed by the narrowing sleeves 1 at both ends, the pressure plate 32 is bent inward and clamped with the core wire.

[0031] See Figure 5 The constricted sleeve 1 includes an outer sleeve 13 that is sleeved with the wire 2 and an inner sleeve 11 that is sleeved with the cylinder 3. The two ends of the conical segment 12 are respectively connected to the outer sleeve 13 and the inner sleeve 11.

[0032] The outer sleeve 13 cooperates with the wire 2, allowing one section of the wire 2 (the section with insulation) to be inside the constriction sleeve 1. The inner sleeve 11 cooperates with the cylinder 3, and the two constriction sleeves 1 abut against each other through the inner sleeve 11, preventing the cylinder 3 from being exposed.

[0033] Furthermore, one of the inner sleeve segments 11 has an inner annular groove 14 at its inner end, and the other inner sleeve segment 11 has an outer annular groove 14 at its inner end, and the two inner sleeve ends are sleeved together (not shown in the figure).

[0034] By connecting the two inner sleeve sections 11, the exposed cylinder 3 can be completely avoided.

[0035] See Figure 4 An insulating sleeve 4 is fitted over the middle of the cylinder 3, and the inner end of the inner sleeve section 11 is fitted into the insulating sleeve 4. Preferably, the inner ends of the two inner sleeve sections 11 abut against each other.

[0036] If the inner ends of the two sleeve sections are made into two different structures, the necking sleeve 1 would inevitably require two different injection molds, increasing costs and affecting assembly. Therefore, in this embodiment, an insulating sleeve 4 is fitted into the middle of the cylinder 3, and the inner end of the inner sleeve section 11 is fitted onto the outside of the insulating sleeve 4. The inner sleeve section 11 has a uniform structure, preventing assembly errors. The necking sleeve 1 is made of insulating materials such as plastic or rubber.

[0037] The above description is only a preferred embodiment of the utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​the utility model. The content of this specification should not be construed as a limitation of the utility model.

Claims

1. A hardware terminal, characterized by: It includes: The cylinder is formed by stamping sheet material. Multiple gaps are provided at both ends of the cylinder. A pressure plate is formed between two adjacent gaps. Each end of the cylinder is provided with a limiting protrusion for engaging the shrink sleeve. The limiting protrusion is located inside the gap.

2. The hardware terminal according to claim 1, characterized in that: The outer end of the compression plate is bent outward or tilted to form an enlarged hole.

3. A wiring connector, characterized by: The hardware terminal block as described in claim 1 or 2 further includes a reducing sleeve fitted onto both ends of the hardware terminal block. The inner side of the reducing sleeve is provided with a conical section, and the inner diameter and outer diameter of the conical section are small. The inner side of the inner end of the reducing sleeve is provided with an annular groove that cooperates with the limiting protrusion.

4. The wiring connector of claim 3, wherein: The constricted sleeve includes an outer sleeve section that connects to the wire and an inner sleeve section that connects to the cylinder. The two ends of the conical section are connected to the outer sleeve section and the inner sleeve section, respectively.

5. The wiring connector of claim 4, wherein: One of the inner sleeve segments has an inner annular groove at its inner end, and the other inner sleeve segment has an outer annular groove at its inner end. The two inner sleeve ends are connected together.

6. The wiring connector of claim 4, wherein: An insulating sleeve is fitted in the middle of the cylinder, and the inner end of the inner sleeve section is fitted into the insulating sleeve.

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