Operating mechanism of circuit breaker

Abstract

The utility model provides an operating mechanism of a circuit breaker, which comprises a shell, a positioning rotor and a cover, a mounting groove is arranged on the shell, a rotating shaft integrally arranged with the shell is arranged in the mounting groove, the positioning rotor is mounted on the rotating shaft, and after the mounting is completed, one end of the rotating shaft facing the cover protrudes out of the positioning rotor. Through the integrally-arranged rotating shaft, the diameter of the rotating shaft can be enlarged under the condition that the mounting position of the rotating shaft is ensured, and then through the protruding arrangement of the rotating shaft, the cover can only abut against the rotating shaft after being mounted and does not make direct contact with the positioning rotor, and the cover is prevented from affecting normal work of the positioning rotor.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to an operating mechanism of a circuit breaker. Background Art

[0002] In the current operating mechanism, the positioning rotor is installed in the housing through a metal shaft. During installation, the two ends of the metal shaft cooperate with the holes on the cover and the housing. After installation, the cover is close to the positioning rotor, and the positioning rotor is easily interfered by the cover when rotating, and cannot work normally. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an operating mechanism for a circuit breaker, comprising a shell, a positioning rotor and a cover. The shell is provided with a mounting groove, a rotating shaft integrally provided with the shell is provided in the mounting groove, the positioning rotor is mounted on the rotating shaft, and after the installation is completed, the rotating shaft protrudes toward one end of the cover to position the rotor.

[0004] Preferably, the positioning rotor is provided with an arc-shaped guide piece coaxially fixed with the positioning rotor, and the housing is provided with a guide groove having the same curvature as that of the arc-shaped guide piece.

[0005] Preferably, a limiting edge for limiting the arc-shaped guide piece is provided on the guide groove.

[0006] Preferably, the limiting edge includes a limiting piece, a connecting plate and a buckle plate, the limiting piece and the buckle plate are respectively fixed at two ends of the connecting plate, a connecting notch is opened on the outer shell, and the connecting plate is arranged between the connecting notch and the cover.

[0007] Preferably, a reinforcement strip is provided on the side wall of the positioning rotor, and the arc-shaped guide piece is fixed on the reinforcement strip.

[0008] Preferably, a positioning groove for positioning the rotating shaft is provided on the cover.

[0009] The beneficial effects of the utility model are as follows: through the integrally arranged rotating shaft, the diameter of the rotating shaft can be enlarged while ensuring the installation position of the rotating shaft, and then through the protruding setting of the rotating shaft, the cover can only support the rotating shaft after installation without direct contact with the positioning rotor, thereby avoiding the cover affecting the normal operation of the positioning rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the overall structure diagram of the utility model;

[0011] Figure 2 It is the internal mechanism of the utility model;

[0012] Figure 3 for Figure 2 A partial enlarged view of the marked area;

[0013] Figure 4 This is the structural diagram of the positioning rotor;

[0014] Figure 5 This is a structural diagram of the lid. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0016] See also Figure 1-Figure 5 The utility model provides an operating mechanism of a circuit breaker, comprising a shell 1, a positioning rotor 2 and a cover 3. The shell 1 is provided with a mounting groove, in which a rotating shaft 4 integrally provided with the shell 1 is provided. The positioning rotor 2 is mounted on the rotating shaft 4. After the installation is completed, the rotating shaft 4 protrudes toward one end of the cover 3 to position the rotor 2.

[0017] Through the integrally arranged rotating shaft 4, the diameter of the rotating shaft 4 can be enlarged while ensuring the installation position of the rotating shaft 4, and then through the protruding setting of the rotating shaft 4, the cover 3 can only support the rotating shaft 4 after installation without directly contacting the positioning rotor 2, thereby avoiding the cover 3 affecting the normal operation of the positioning rotor 2.

[0018] Furthermore, the positioning rotor 2 is provided with an arc-shaped guide piece 5 coaxially fixed with the positioning rotor 2 , and the housing 1 is provided with a guide groove 11 having the same curvature as that of the arc-shaped guide piece 5 .

[0019] The cooperation between the arc-shaped guide piece 5 and the guide groove 11 can assist in limiting the rotation trajectory of the positioning rotor 2, provide support force for the positioning rotor 2, reduce the pressure on the shaft 4, and extend the service life of the shaft 4 and the positioning rotor 2.

[0020] Furthermore, a limiting edge 6 for limiting the arc-shaped guiding piece 5 is provided on the guiding groove 11 .

[0021] By setting the limiting edge 6, the guide piece can be further limited so that the guide piece rotates along a fixed track, thereby making the action of positioning the rotor 2 more reliable.

[0022] Furthermore, the limiting edge 6 includes a limiting plate 61, a connecting plate 62 and a buckle plate 63, the limiting plate 61 and the buckle plate 63 are respectively fixed on both ends of the connecting plate 62, a connecting notch 12 is opened on the outer shell 1, and the connecting plate 62 is arranged between the connecting notch 12 and the cover 3.

[0023] By setting the connecting plate 62 and the buckle plate 63, during installation, the connecting plate 62, the buckle plate 63 and the limiting piece 61 are buckled on the connecting notch 12. After installation, the cover 3 covers the connecting notch 12, and the limiting piece 61 is locked by the connecting plate 62 and the buckle plate 63, completing the installation of the limiting piece 61. Through the above arrangement, after removing the cover 3, the limiting edge 6 can be removed, which is convenient for disassembly and assembly of the limiting edge 6.

[0024] Furthermore, a reinforcement strip 7 is provided on the side wall of the positioning rotor 2 , and the arc-shaped guide piece 5 is fixed on the reinforcement strip 7 .

[0025] The reinforcement strip 7 is provided to enhance the structural strength of the positioning rotor 2 and can be used to connect the arc-shaped guide piece 5 .

[0026] Furthermore, the cover 3 is provided with a positioning groove 31 for positioning the rotating shaft 4, thereby increasing the stress points of the rotating shaft 4 and enhancing the structural strength.

[0027] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. An operating mechanism of a circuit breaker, characterized in that: A housing (1), a positioning rotor (2) and a cover (3); the housing (1) is provided with a mounting groove, a rotating shaft (4) integrally provided with the housing (1) is provided in the mounting groove, the positioning rotor (2) is mounted on the rotating shaft (4), and after the installation is completed, the rotating shaft (4) protrudes out of the positioning rotor (2) toward one end of the cover (3).

2. The operating mechanism of a circuit breaker according to claim 1, characterized in that: The positioning rotor (2) is provided with an arc-shaped guide piece (5) coaxially fixed with the positioning rotor (2), and the housing (1) is provided with a guide groove (11) having the same arc as that of the arc-shaped guide piece (5).

3. The operating mechanism of a circuit breaker according to claim 2, characterized in that: The guide groove (11) is provided with a limiting edge (6) for limiting the arc-shaped guide piece (5).

4. The operating mechanism of a circuit breaker according to claim 3, characterized in that: The limiting edge (6) comprises a limiting plate (61), a connecting plate (62) and a buckle plate (63); the limiting plate (61) and the buckle plate (63) are respectively fixed to two ends of the connecting plate (62); a connecting notch (12) is provided on the housing (1); and the connecting plate (62) is arranged between the connecting notch (12) and the cover (3).

5. The operating mechanism of a circuit breaker according to claim 2, characterized in that: A reinforcement strip (7) is provided on the side wall of the positioning rotor (2), and the arc-shaped guide piece (5) is fixed on the reinforcement strip (7).

6. The operating mechanism of a circuit breaker according to claim 1, characterized in that: The cover (3) is provided with a positioning groove (31) for positioning the rotating shaft (4).

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