Wiring terminal block with compact structure

Abstract

The utility model relates to a wiring terminal strip with a compact structure, which comprises a base, a wiring groove is arranged on the base, the interior of the wiring groove is divided into more than two wiring cavities by partition plates, a wiring terminal group is arranged in each wiring cavity, each wiring terminal group comprises a terminal sheet and a screw assembly, and a mounting boss for bearing the terminal sheet is arranged in each wiring cavity. Limiting protruding parts are symmetrically arranged on the two sides of the wiring cavity, assembling grooves allowing the terminal pieces to be inserted therein are formed between the limiting protruding parts and the installation bosses, each terminal piece comprises a base part inserted into the corresponding assembling groove and a bent part arranged outside the wiring cavity, tooth parts are symmetrically arranged on the two sides of each base part, and the tooth parts are arranged at the end, corresponding to the corresponding bent part, of the base. By adopting the above technical scheme, the structure is simple, the installation is convenient, the base part is inserted into the assembly groove along the installation boss, the tooth part is clamped with the side wall of the assembly groove, mechanical fixation is enhanced, mechanical interlocking is formed, and the terminal sheet is prevented from loosening due to vibration, external force pulling or thermal expansion and cold contraction; the structure is simple, the size is small, and stability is high.

Description

Technical Field

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

[0002] Traditional terminal block products require maintaining the stability of the circuit after connection to prevent the wire from easily coming loose under external pulling force. Although terminal blocks achieve the anti-detachment function, multiple steps are required to lock the wire in place, making the operation cumbersome, and the structure is complex and the size is large. Utility Model Content

[0003] In summary, to overcome the shortcomings of the prior art, this utility model provides a compact terminal block.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a compact terminal block, including a base, on which a wiring groove is provided. The wiring groove is divided into two or more wiring cavities by a partition. A terminal block assembly is provided in each wiring cavity. The terminal block assembly includes a terminal piece and a screw assembly. A mounting boss for receiving the terminal piece is provided in each wiring cavity. Limiting protrusions are symmetrically provided on both sides of the wiring cavity. An assembly groove for inserting the terminal piece is provided between the limiting protrusion and the mounting boss. The terminal piece includes a base inserted into the assembly groove and a bent portion provided outside the wiring cavity. Teeth are symmetrically provided on both sides of the base. The teeth are provided at one end of the base corresponding to the bent portion.

[0005] By adopting the above technical solution, the structure is simple and easy to install. The base is inserted into the assembly groove along the mounting boss, and the teeth are engaged with the side wall of the assembly groove to enhance mechanical fixation and form a mechanical interlock, preventing the terminal piece from loosening due to vibration, external force pulling or thermal expansion and contraction. The structure is simple, the size is small and the stability is high.

[0006] The present invention further comprises: a first wiring hole on the base, a second wiring hole on the bent portion, a connecting boss below the base corresponding to the position of the first wiring hole, the connecting boss being coaxially arranged with the first wiring hole and having a mounting hole adapted to the screw assembly, the mounting boss having a mounting groove adapted to the connecting boss, the mounting groove having an opening corresponding to the insertion direction of the terminal piece, and the mounting groove having a connecting hole adapted to the screw assembly coaxially arranged with the position of the connecting boss corresponding to the position of the connecting boss.

[0007] By adopting the above technical solution, the terminal piece is inserted along the opening direction of the mounting groove, the base is inserted into the assembly groove along the mounting boss, the connecting boss is inserted into the mounting groove, and the screw assembly is screwed in. One end of the screw assembly passes through the first wiring hole, the mounting hole and the connecting hole arranged coaxially in sequence, which makes the connection between the terminal piece and the base more stable, the assembly simple and the stability high.

[0008] The present invention further includes: a positioning protrusion for positioning the terminal piece in place at the other end of the wiring cavity relative to the insertion direction of the terminal piece, the positioning protrusion being higher than the mounting boss and the two being arranged in a stepped manner.

[0009] By adopting the above technical solution, when the terminal piece is inserted along the opening direction of the mounting groove until the base abuts against the positioning protrusion, it is confirmed that the terminal piece is inserted in place. At this time, the first wiring hole, mounting hole and connection hole are coaxially set, which is simple in structure, quick in positioning and easy to assemble.

[0010] The present invention is further provided that: the end of the limiting protrusion on both sides corresponding to the opening direction of the mounting groove is set in the shape of a flared mouth.

[0011] By adopting the above technical solution, insertion can be facilitated quickly.

[0012] The present invention is further provided that the tooth tip spacing on both sides is greater than the width of the assembly groove, and the width of the assembly groove is greater than the width of the base.

[0013] By adopting the above technical solution, the tooth tips of the tooth section are inclined towards the bending part to form a one-way tooth. The inclined design of the tooth helps the terminal piece slide into the assembly groove more easily. The one-way tooth only allows one-way insertion and is more difficult to pull out in the opposite direction. The tooth section includes two or more tooth tips, which increases the biting density and improves the fixing strength. The tooth tip distance on both sides is greater than the width of the assembly groove. The width of the assembly groove is greater than the width of the base, which makes inserting the terminal piece easier and more stable.

[0014] The present invention is further provided with chamfers on both sides of the other end of the base corresponding to the bent portion.

[0015] By adopting the above technical solution, insertion can be facilitated quickly. Attached Figure Description

[0016] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0017] Figure 2 This is a partial structural diagram of an embodiment of the present utility model.

[0018] Figure 3 This is a cross-sectional view of an embodiment of the present utility model.

[0019] Figure 4This is a perspective view of the terminal piece in an embodiment of the present utility model.

[0020] The labels in the diagram have the following meanings: 1. Base, 11. Wiring groove, 111. Wiring cavity, 12. Mounting boss, 121. Mounting groove, 122. Connecting hole, 13. Limiting protrusion, 14. Assembly groove, 15. Positioning protrusion, 2. Terminal block assembly, 21. Terminal piece, 211. Base, 212. Bending part, 213. Toothed part, 214. First wiring hole, 215. Connecting boss, 216. Mounting hole, 217. Second wiring hole, 22. Screw assembly. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the examples. These examples are used to illustrate this utility model, but are not intended to limit its scope.

[0022] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0023] Reference Appendix Figure 1-4 A compact terminal block includes a base 1 with a wiring groove 11. The wiring groove 11 is divided into two or more wiring cavities 111 by a partition. A terminal block assembly 2 is provided in each wiring cavity 111. The terminal block assembly 2 includes a terminal piece 21 and a screw assembly 22. A mounting boss 12 for receiving the terminal piece 21 is provided in each wiring cavity 111. Limiting protrusions 13 are symmetrically provided on both sides of the wiring cavity 111. An assembly groove 14 for inserting the terminal piece 21 is provided between the limiting protrusion 13 and the mounting boss 12. The terminal piece 21 includes a base 211 inserted into the assembly groove 14 and a bent portion 212 provided outside the wiring cavity 111. Teeth 213 are symmetrically provided on both sides of the base 211 and are provided at one end of the base 1 corresponding to the bent portion 212.

[0024] This embodiment further includes the following configuration: a first wiring hole 214 is provided on the base 211, a second wiring hole 217 is provided on the bent portion 212, a connecting boss 215 is provided below the base 1 corresponding to the position of the first wiring hole 214, the connecting boss 215 is coaxially arranged with the first wiring hole 214 and is provided with a mounting hole 216 adapted to the screw assembly 22, the mounting boss 12 is provided with a mounting groove 121 adapted to the connecting boss 215, the mounting groove 121 is provided with an opening corresponding to the insertion direction of the terminal piece 21, and the mounting groove 121 is coaxially arranged with a connecting hole 122 adapted to the screw assembly 22 corresponding to the position of the connecting boss 215.

[0025] In this embodiment, the wiring cavity 111 is further provided with a positioning protrusion 15 at the other end of the terminal piece 21 relative to the insertion direction of the terminal piece 21, for positioning the terminal piece 21 to be inserted into place. The positioning protrusion 15 is higher than the mounting boss 12 and the two are arranged in a stepped manner.

[0026] In this embodiment, the limiting protrusions 13 on both sides are set in a flared shape at one end corresponding to the opening direction of the mounting groove 121.

[0027] In this embodiment, the tooth tip spacing of the two side teeth 213 is greater than the width of the assembly groove 14, and the width of the assembly groove 14 is greater than the width of the base 211.

[0028] In this embodiment, the base 211 is further provided with chamfers on both sides of the other end of the bent portion 212.

[0029] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of 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. The aforementioned "between" does not only refer to the orientation or position, but also includes the meaning of the interaction between different parts.

[0030] Although this document frequently uses terms such as base 1, wiring groove 11, wiring cavity 111, mounting boss 12, mounting groove 121, connecting hole 122, limiting protrusion 13, assembly groove 14, positioning protrusion 15, terminal assembly 2, terminal piece 21, base 211, bending portion 212, toothed portion 213, first wiring hole 214, connecting boss 215, mounting hole 216, second wiring hole 217, and screw assembly 22, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A compact terminal block, characterized in that: The device includes a base with a wiring groove. The wiring groove is divided into two or more wiring cavities by a partition. Each wiring cavity contains a terminal block assembly, which includes a terminal piece and a screw assembly. Each wiring cavity has a mounting boss for receiving the terminal piece. The wiring cavity has symmetrically arranged limiting protrusions on both sides. An assembly groove for inserting the terminal piece is provided between the limiting protrusion and the mounting boss. Each terminal piece includes a base inserted into the assembly groove and a bent portion located outside the wiring cavity. The base has symmetrically arranged teeth on both sides, with the teeth located at one end of the base corresponding to the bent portion.

2. The compact terminal block according to claim 1, characterized in that: The base is provided with a first wiring hole, the bent portion is provided with a second wiring hole, and the base is provided with a connecting boss below the position corresponding to the first wiring hole. The connecting boss is coaxially arranged with the first wiring hole and is provided with a mounting hole adapted to the screw assembly. The mounting boss is provided with a mounting groove adapted to the connecting boss. The mounting groove is provided with an opening corresponding to the insertion direction of the terminal piece. The mounting groove is coaxially arranged with a connecting hole adapted to the screw assembly at the position corresponding to the connecting boss.

3. The compact terminal block according to claim 2, characterized in that: The other end of the wiring cavity opposite to the terminal piece insertion direction is provided with a positioning protrusion for positioning the terminal piece to be inserted into place. The height of the positioning protrusion is higher than that of the mounting boss, and the two are arranged in a stepped manner.

4. A compact terminal block according to claim 2, characterized in that: The two limiting protrusions on both sides are flared at one end corresponding to the opening direction of the mounting groove.

5. A compact terminal block according to claim 1, characterized in that: The distance between the tips of the teeth on both sides is greater than the width of the assembly groove, and the width of the assembly groove is greater than the width of the base.

6. A compact terminal block according to claim 1, characterized in that: The base has chamfers on both sides of the other end corresponding to the bent portion.

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