Wiring terminal for circuit breaker

Abstract

The utility model discloses a wiring terminal for a circuit breaker, which comprises a supporting part, the middle part of the supporting part is provided with an internal threaded hole, and the supporting part is in threaded fit with an arranged fastener through the internal threaded hole; a gasket and a spring cushion are also arranged between the fastener and the supporting part; wherein the fastener comprises a screw rod, an adaptive part is arranged at the upper end of the screw rod, the fastener is screwed on the supporting part, and the adaptive part is extruded into the spring cushion, so that the stability of the fastener after being connected with the supporting part is improved, and particularly, when the adaptive part deforms and is clamped in the spring cushion, the fastener can be fixed on the supporting part. And the fastener can be effectively prevented from being automatically loosened. On the basis, the structure of the fastener is optimized, so that the loosening phenomenon of the fastener can be reduced, the stability of the fastener after installation is improved, and the fastener is worthy of popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical accessories, in particular to a wiring terminal for a circuit breaker. Background Art

[0002] In the related art, the structure of the terminal block usually includes a terminal screw and a terminal nut, that is, a structure matching with the terminal nut is arranged at both ends of the molded case circuit breaker base, and the terminal nut is placed in the structure. When wiring, the electrical connection is achieved by tightening the terminal screw and the terminal nut. However, when the fastener is tightened, the dragging or pulling of the wire may cause the fastener and the support part to loosen, and then sparks may occur inside the terminal block. Utility Model Content

[0003] The purpose of the utility model is to provide a wiring terminal for a circuit breaker to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a terminal block for a circuit breaker, comprising a support portion, a middle portion of which is provided with an internal threaded hole, and the internal threaded hole is threadedly matched with a fastener; a gasket and a spring gasket are also provided between the fastener and the support portion; the fastener comprises a screw rod, an adaptable portion is provided at the upper end of the screw rod, and the fastener is tightened onto the support portion, and the adaptable portion is squeezed into the spring gasket to improve the stability of the fastener after being connected to the support portion.

[0005] As a preferred technical solution of the utility model: the fastener also includes a driving part arranged at the upper end of the screw rod, and a pressing part is also provided on a side of the driving part facing the spring pad.

[0006] As a preferred technical solution of the utility model: a side of the pressing portion facing the spring pad is also provided with an arcuate surface.

[0007] As a preferred technical solution of the utility model: reinforcing ribs are also provided on the support portion.

[0008] As a preferred technical solution of the utility model: the reinforcing rib is in the shape of an elongated strip, and the number of the reinforcing ribs is two, and they are symmetrically arranged on both sides of the internal threaded hole.

[0009] By adopting the above technical solution, the beneficial effect of the utility model is that when the fastener is tightened onto the support part, the adaptable part is squeezed into the spring pad to improve the stability of the fastener after being connected to the support part. In particular, when the adaptable part is deformed and stuck in the spring pad, the fastener can be effectively prevented from automatically loosening. Based on this, the utility model can reduce the loosening of the fastener by optimizing the structure of the fastener, thereby improving the stability of the fastener after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is an exploded schematic diagram of the main structure of the utility model;

[0011] Figure 2 It is a schematic diagram of the main structure of the fastener of the utility model;

[0012] Figure 3 It is a schematic diagram of the cross-sectional structure of the fastener of the utility model.

[0013] In the figure: 1, supporting part; 2, spring pad; 3, fastener; 30, screw; 31, clamping part; 32, driving part; 33, adaptive part; 34, arc surface; 4, reinforcing rib; 5, internal threaded hole; 6, gasket. DETAILED DESCRIPTION

[0014] Embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present utility model, and should not be construed as limitations on the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "upper surface", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model.

[0015] See also Figure 1-3 The utility model provides an embodiment: a wiring terminal for a circuit breaker, comprising a support portion 1, an internal threaded hole 5 is provided in the middle of the support portion 1, and the internal threaded hole 5 is threadedly matched with a fastener 3; a gasket 6 and a spring pad 2 are also provided between the fastener 3 and the support portion 1; the fastener 3 comprises a screw rod 30, and an adaptability portion 33 is provided at the upper end of the screw rod 30. When the fastener 3 is tightened onto the support portion 1, the adaptability portion 33 is squeezed into the spring pad 2 to improve the stability of the fastener 3 after being connected to the support portion 1.

[0016] In summary, when the fastener 3 is tightened onto the support portion 1, the adaptable portion 33 is squeezed into the spring pad 2 to improve the stability of the fastener 3 after being connected to the support portion 1. In particular, when the adaptable portion 33 is deformed and stuck in the spring pad 2, the fastener 3 can be effectively prevented from automatically loosening. Based on this, the utility model can reduce the loosening of the fastener 3 by optimizing the structure of the fastener, thereby improving the stability of the fastener 3 after installation.

[0017] Furthermore, since the fastener 3 further includes a driving portion 32 disposed at the upper end of the screw rod 30, and the driving portion 32 is further provided with a pressing portion 31 on a side facing the spring pad 2, the driving portion 32 can be used to cause the screw rod 30 to rotate, wherein a slot or a cross slot is provided on a side of the driving portion 32 away from the screw rod 30, so that a screwdriver can cause the screw rod 30 to rotate. In addition, the pressing portion 31 is used to flatten the spring pad 2, so that the adaptability portion 33 can be stably inserted into the spring pad 2, so as to further ensure the stability of the spring pad 2 after being connected to the adaptability portion 33.

[0018] Furthermore, since the clamping portion 31 is provided with a curved surface 34 on the side facing the spring pad 2, the clamping portion 31 can smoothly flatten the spring pad 2, that is, when the fastener 3 is tightened, the curved surface 34 first contacts the inner circle of the spring pad 2, so that the spring pad 2 can move downward with the fastener 3, and the two raised ends can be parallel to each other, thereby facilitating the adaptability portion 33 to smoothly enter the spring pad 2.

[0019] On the basis of the above solution, since the support portion 1 is further provided with a reinforcing rib 4 , the overall strength of the support portion 1 is increased to prevent the support portion 1 from being deformed during the tightening process of the fastener 3 .

[0020] Specifically, the reinforcing ribs 4 are in the shape of long strips, and there are two reinforcing ribs 4 symmetrically arranged on both sides of the internal threaded hole 5 .

[0021] In summary, while preventing the fastener 3 from automatically loosening, the structural strength of the support portion 1 can also be improved to prevent the fastener 3 from causing deformation of the support portion 1 when rotating.

[0022] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A wiring terminal for a circuit breaker, characterized in that: It comprises a support portion (1), wherein an internal thread hole (5) is provided in the middle of the support portion (1), and the internal thread hole (5) is threadably matched with a fastener (3); A gasket (6) and a spring gasket (2) are also provided between the fastener (3) and the support portion (1); The fastener (3) comprises a screw rod (30), and an adaptable portion (33) is provided at the upper end of the screw rod (30). When the fastener (3) is screwed onto the support portion (1), the adaptable portion (33) is squeezed into the spring pad (2) to improve the stability of the fastener (3) after being connected to the support portion (1).

2. A connection terminal for a circuit breaker according to claim 1, characterized in that: The fastener (3) further comprises a driving portion (32) arranged at the upper end of the screw rod (30), and a pressing portion (31) is also provided on a side of the driving portion (32) facing the spring pad (2).

3. A connection terminal for a circuit breaker according to claim 2, characterized in that: A side of the pressing portion (31) facing the spring pad (2) is also provided with an arc-shaped surface (34).

4. A connection terminal for a circuit breaker according to claim 1, 2 or 3, characterized in that: The support portion (1) is also provided with reinforcing ribs (4).

5. A connection terminal for a circuit breaker according to claim 4, characterized in that: The reinforcing ribs (4) are in the shape of long strips, and there are two reinforcing ribs (4) which are symmetrically arranged on both sides of the internal threaded hole (5).

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