Breaker base easy to assemble

Abstract

The utility model discloses a breaker base easy to assemble, which comprises a base, a bottom plate, a connecting nut and a connecting bolt, base holes are arranged at four corners of the base, bottom plate holes are arranged at four corners of the bottom plate, the connecting nut is coaxially and fixedly arranged at one end of the base hole back to the bottom plate, and the connecting bolt is fixedly arranged at the other end of the base hole back to the bottom plate. The connecting bolts penetrate through the bottom plate holes, then penetrate through the base holes and are in threaded connection with the connecting nuts so that the bottom plate can be fixedly installed on the base. According to the circuit breaker base easy to assemble, through the mode that the connecting nuts are fixed on the base, when the base is in butt joint with the bottom plate, the bottom plate and the base can be effectively installed only through the mode that the connecting bolts penetrate through the bottom plate and the base and then are in threaded connection with the connecting nuts.

Description

TECHNICAL FIELD

[0001] The utility model relates to a circuit breaker, more particularly to a circuit breaker base easy to assemble. BACKGROUND

[0002] At present, the circuit breaker shell structure in the prior art is mostly obtained by butt joint installation of a bottom plate and a base, and then installing a static contact, a moving contact and an arc extinguishing chamber and other components in the circuit breaker shell structure after butt joint, wherein the installation mode of the bottom plate and the base in the prior art is to form through holes at four corners of both, and then to realize butt joint of the bottom plate and the base by a combination mode of a bolt and a hexagon nut. Figure 1 As shown in the figure, the through holes formed on the existing base are two through holes with different hole diameters, wherein the through hole with a small hole diameter is a cylindrical hole, and the through hole with a large hole diameter is a hexagonal hole, a long hexagonal nut is embedded in the hexagonal hole, a short bolt is then used to pass through the cylindrical hole to fix the hexagonal nut, and a long bolt is then used to pass through the through hole of the bottom plate to realize screw connection with the hexagonal nut to achieve installation of the base and the bottom plate. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a circuit breaker base easy to assemble and effectively reducing production cost.

[0004] To achieve the above object, the utility model provides the following technical scheme: a circuit breaker base easy to assemble, comprising a base, a bottom plate, a connecting nut and a connecting bolt, four corners of the base are provided with base holes, four corners of the bottom plate are provided with bottom plate holes, characterized in that: the connecting nut is coaxially fixedly installed on one end of the base hole away from the bottom plate, the connecting bolt passes through the bottom plate hole and then passes through the base hole and is screw connected with the connecting nut to fix and install the bottom plate on the base.

[0005] As a further improvement of the utility model, the base hole comprises an introduction section and a transition section, one end of the introduction section extends to a side of the base facing the bottom plate to butt joint with the bottom plate hole, the other end of the introduction section is butt jointed with the transition section, one end of the transition section away from the introduction section extends to a side of the base away from the bottom plate, the connecting nut is coaxially fixedly installed on the end of the transition section, the hole diameter of the introduction section is larger than that of the transition section, and the end of the introduction section and the end of the transition section are transitioned by chamfering.

[0006] As a further improvement of the utility model, the bottom plate hole comprises a buried section and a passing section, one end of the buried section extends to the side of the bottom plate away from the base, the other end is butted with the end of the passing section, the end of the passing section away from the buried section extends to the side of the bottom plate towards the base to butt with the end of the introduction section, the aperture of the buried section is larger than the aperture of the passing section, the aperture of the buried section is matched with the head of the connecting bolt, the aperture of the passing section is equal to the transition section, the aperture of the passing section is matched with the body of the connecting bolt.

[0007] As a further improvement of the utility model, the body of the connecting bolt is coaxially sleeved with a gasket at the position close to the head, the gasket abuts against the step surface formed by the end of the passing section and the end of the buried section.

[0008] As a further improvement of the utility model, the end of the gasket away from the connecting bolt is coaxially fixed with a rubber ring, the end of the gasket abuts against the step surface formed by the end of the passing section and the end of the buried section through the rubber ring.

[0009] The utility model discloses the beneficial effects, through the base, bottom plate, connecting nut and the setting of connecting bolt, can effectively realize the fixed between base and bottom plate using the mode of connecting bolt and connecting nut thread connection, compared with the prior art, the assembly efficiency has been greatly improved, and the production cost of circuit breaker is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the schematic view of the connecting part of circuit breaker base and bottom plate in the prior art;

[0011] Figure 2 It is the structure schematic view of the circuit breaker base of the utility model easy to assemble;

[0012] Figure 3 It is Figure 2 It is the enlarged view of A part in Fig. PREFERRED EMBODIMENT

[0013] The utility model will be further described in the following with the embodiment given by the accompanying drawings.

[0014] Refer to Figures 2 to 3As shown, the easily assembled circuit breaker base of the embodiment comprises a base 1, a bottom plate 2, a connecting nut 3 and a connecting bolt 4, the base 1 is provided with a base hole 5 at each corner, the bottom plate 2 is provided with a bottom plate hole 6 at each corner, characterized in that: the connecting nut 3 is coaxially fixedly installed on the end of the base hole 5 away from the bottom plate 2, the connecting bolt 4 penetrates the bottom plate hole 6 and then penetrates the base hole 5 and is threadedly connected with the connecting nut 3 to fix the bottom plate 2 to the base 1, so that during the assembly of the base 1 and the bottom plate 2, only the connecting bolt 4 needs to be synchronously penetrated through the bottom plate hole 6 and the base hole 5, and then threadedly connected with the connecting nut 3, so that the quick assembly between the base 1 and the bottom plate 2 can be simply and quickly realized, the connecting nut 3 can be placed on the mold core, and during the mold pressing production, the connecting nut 3 is directly embedded into the base 1, compared with the prior art in the background art Figure 1 , the assembly of the long hexagonal nut is removed, the assembly efficiency is greatly increased, and the production cost of the circuit breaker is reduced.

[0015] Further, in order to enhance the assembly efficiency and assembly accuracy, the base hole 5 structure is adopted in the embodiment, the guiding action of the lead-in section 51 is utilized to make the connecting bolt 4 better enter the transition section 52, and then threadedly connect with the connecting nut 3 fixed on the base 1 through the transition section 52, so as to further increase the assembly efficiency and accuracy.

[0016] Further, in order to increase the safety of the head of the connecting bolt 4, the bottom plate hole 6 is arranged in the form of a buried section 61 and a passing section 62 in the embodiment, one end of the buried section 61 extends to the side surface of the bottom plate 2 away from the base 1, the other end is butted with the end of the passing section 62, the end of the passing section 62 away from the buried section 61 extends to the side surface of the bottom plate 2 towards the base 1 to be butted with the end of the lead-in section 51, the hole diameter of the buried section 61 is greater than that of the passing section 62, the hole diameter of the buried section 61 is matched with the head of the connecting bolt 4, the hole diameter of the passing section 62 is equal to the transition section 52, and the hole diameter of the passing section 62 is matched with the body of the connecting bolt 4, the head of the connecting bolt 4 is accommodated by the buried section 61, and then the passing section 62 and the transition section 52 are matched to facilitate the passing installation of the connecting bolt 4.

[0017] Further, in order to ensure the reliability of the connecting bolt 4, a gasket 41 is further arranged in the embodiment, the elastic action of the gasket 41 is used to ensure the reliability of the connecting bolt 4, further, a rubber ring is arranged at the end of the gasket 41, which plays a role of anti-skid on the one hand and provides corresponding elastic force for the gasket 41 on the other hand, so that the connection of the connecting bolt 4 is more stable and reliable.

[0018] In summary, the easily-assembled circuit breaker base of the present embodiment greatly facilitates the assembly between the base 1 and the bottom plate 2 by the arrangement of the connecting nut 3 and the connecting bolt 4 fixed on the base 1, enhances the assembly efficiency between the base 1 and the bottom plate 2, and reduces the production cost of the circuit breaker.

[0019] The above merely is the preferred embodiment of the present application, the protection scope of the present application is not limited to the above-mentioned embodiment, and any technical scheme belonging to the idea of the present application is within the protection scope of the present application. It should be noted that, for the ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. An easily assembled circuit breaker base, comprising a base (1), a bottom plate (2), a connecting nut (3) and a connecting bolt (4), base holes (5) are formed on the four corners of the base (1), and bottom plate holes (6) are formed on the four corners of the bottom plate (2), characterized in that: The connecting nut (3) is coaxially fixed and installed on one end of the base hole (5) away from the bottom plate (2), the connecting bolt (4) penetrates the bottom plate hole (6) and passes through the base hole (5) and is screwed with the connecting nut (3) to fix and install the bottom plate (2) on the base (1).

2. The easy-to-assemble circuit breaker base of claim 1, wherein: The base hole (5) includes an introduction section (51) and a transition section (52), one end of the introduction section (51) extends to the side of the base (1) towards the bottom plate (2) to be connected with the bottom plate hole (6), the other end of the introduction section (51) is connected with the transition section (52), the transition section (52) extends to the side of the base (1) away from the bottom plate (2) from one end away from the introduction section (51), the connecting nut (3) is coaxially fixed and installed on the end of the transition section (52), the hole diameter of the introduction section (51) is larger than that of the transition section (52), and the end of the introduction section (51) and the end of the transition section (52) are connected by a chamfer.

3. The easy-to-assemble circuit breaker base of claim 2, wherein: The bottom plate hole (6) includes a buried section (61) and a passing section (62), one end of the buried section (61) extends to the side of the bottom plate (2) away from the base (1), the other end is connected with the end of the passing section (62), the passing section (62) extends to the side of the bottom plate (2) towards the base (1) from one end away from the buried section (61) to be connected with the end of the introduction section (51), the hole diameter of the buried section (61) is larger than that of the passing section (62), the hole diameter of the buried section (61) is matched with the head of the connecting bolt (4), the hole diameter of the passing section (62) is equal to the transition section (52), and the hole diameter of the passing section (62) is matched with the body of the connecting bolt (4).

4. The easy-to-assemble circuit breaker base of claim 3, wherein: The body of the connecting bolt (4) is coaxially sleeved with a gasket (41) near the head, and the gasket (41) abuts against the stepped surface formed by the end of the passing section (62) and the end of the buried section (61).

5. The easy-to-assemble circuit breaker base of claim 4, wherein: The end of the gasket (41) away from the connecting bolt (4) is coaxially fixed with a rubber ring, and the end of the gasket (41) abuts against the stepped surface formed by the end of the passing section (62) and the end of the buried section (61) through the rubber ring.

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