Spring compression type power switch actuating mechanism

Abstract

The utility model discloses a spring compression type power switch actuating mechanism, relates to the technical field of power switches, and aims to solve the technical problem that a switch is easy to trip in a stealing manner when the current of the existing actuating mechanism fluctuates. The spring compression type power switch actuating mechanism comprises a base assembly in which a locking part is rotatably arranged, the base assembly comprises a bottom plate, side plates are symmetrically formed on the two sides of the upper end face of the bottom plate, U-shaped plates are formed on the two sides, opposite to the side plates, of the upper end face of the bottom plate, a triangular plate is formed in the middle of the upper end face of the bottom plate, a connecting shaft b is rotatably installed in the triangular plate, and a connecting shaft a is rotatably installed between the top ends of the opposite faces of the U-shaped plates. A limiting assembly is rotatably installed on the outer edge face of the connecting shaft b, the locking component comprises a three-jaw-shaped locking plate, the outer edge face of the connecting shaft a is internally and fixedly sleeved with the three-jaw-shaped locking plate, and an arc-shaped guide groove is formed in the bottom of the three-jaw-shaped locking plate. The anti-tripping device has the advantage of realizing anti-tripping after the vacuum circuit breaker is switched on.

Description

TECHNICAL FIELD

[0001] The utility model relates to power switch technical field more specifically, relate to a spring compression type power switch actuating mechanism. BACKGROUND

[0002] Vacuum circuit breaker is the short name of vacuum arc extinguishing circuit breaker, also known to be arc extinguishing can occur in vacuum medium circuit breaker. Its working principle is: when the dynamic, static contact of vacuum circuit breaker under the action of operating mechanism, the arc between the contact, the contact surface emits steam under high temperature. Because the contact is designed as a special shape, a magnetic field is generated when the current passes, and the arc moves along the tangent direction of the contact surface under the action of the magnetic field, and part of the metal vapor is condensed on the metal cylinder, and the arc is extinguished when the natural zero, and the dielectric strength between the contacts is quickly restored.

[0003] At present, the actuating mechanism of vacuum circuit breaker is mainly driven by electromagnetic operating mechanism to complete the closing and opening actions of circuit breaker, but the premise of realizing stable closing and opening of electromagnetic operating mechanism is the stable and continuous output of current to form a stable magnetic field to maintain the closing and opening actions. When the current fluctuates, the switch is prone to jump. In view of this, we propose a spring compression type power switch actuating mechanism. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects of prior art, adapting to the actual needs, providing a spring compression type power switch actuating mechanism to solve the technical problem that the existing actuating mechanism is prone to jump when the current fluctuates.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a spring compression type power switch actuating mechanism, comprising a base assembly with a locking component rotatably arranged inside;

[0006] The base assembly comprises a bottom plate with side plates symmetrically formed on both sides of the upper end face, U-shaped plates are formed on both sides of the upper end face of the bottom plate relative to the side plates, and a triangular plate is formed in the center of the upper end face of the bottom plate, a connecting shaft b is rotatably installed in the inside of the triangular plate, a connecting shaft a is rotatably installed between the top ends of the opposite faces of the U-shaped plates, and a limiting assembly is rotatably installed on the outer edge surface of the connecting shaft b;

[0007] The locking component comprises a three-prong locking plate fixedly sleeved on the outer edge surface of the connecting shaft a, and an arc-shaped guide groove is formed in the bottom of the three-prong locking plate.

[0008] The limiting assembly comprises a chassis with a sleeve centrally formed at the top, a telescopic structure movably mounted inside the sleeve, and a spring body sleeved on the outer edge surface of the sleeve, with both ends of the spring body abutting against the chassis and the ball seat respectively.

[0009] The telescopic structure comprises a ball seat with a locking ball centrally formed at the top, with the outer edge surface of the locking ball abutting against the inner wall of the arc-shaped guide slot.

[0010] The utility model discloses a spring body, locking ball and arc-shaped guide slot are designed, after the vacuum circuit breaker executes the closing action, in order to prevent the switch to appear to jump, can be towards one side and move three claw shape locking plate, make three claw shape locking plate twist, thereby make locking ball and the inner wall of arc-shaped guide slot relative movement, in this process because arc-shaped guide slot is arc structure, so it will extrude locking ball and produce the torsion to one side, promote the deflection of limiting assembly, thereby make the deformation of spring body, make locking ball and the inner wall of arc-shaped guide slot closely fit under the elastic force of spring body deformation, reach balance, thereby limit three claw shape locking plate to move to the action of one side under not receiving external force, realize locking, thereby through the limiting of the mechanism is favorable to realize the effect that the vacuum circuit breaker closes and prevents the jump after.

[0011] Preferably, the connecting part of the chassis and the sleeve is provided with an axle slot, and the connecting shaft b is rotatably arranged in the axle slot.

[0012] Preferably, the middle part of the chassis extends towards the bottom end of the sleeve and is provided with a positioning slot, and the two sides of the triangular plate movably abut against the inner wall of the positioning slot.

[0013] Preferably, the telescopic structure comprises a movable shaft centrally arranged at the bottom of the ball seat, and the bottom end of the movable shaft is movably arranged in the sleeve.

[0014] Preferably, the bottom surface of the claw-shaped structure of the three claw shape locking plate is provided with a planar structure movably abutting against the top of the side plate.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a spring body, locking ball and arc guide groove are designed, after the vacuum circuit breaker executes the closing action, in order to prevent the switch to appear to jump, can be towards one side and stir three claw shape locking plate, makes three claw shape locking plate torsion, thereby make locking ball and the inner wall of arc guide groove produce relative movement, in this process because arc guide groove is arc structure, so it will extrude locking ball and produce torsion to one side, promote the deflection of spacing assembly, thereby make the spring body deformation, under the spring body deformation elastic force make locking ball and the inner wall of arc guide groove closely fit, reach balance, thereby under not receiving external force effect limit three claw shape locking plate and move to the action of another side, realize locking, thereby through the spacing of this mechanism is favorable to realize the effect of preventing the jump of vacuum circuit breaker after closing, solves the problem that the existing actuator is easy to jump when current fluctuation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is structural schematic diagram of the utility model;

[0018] Figure 2 It is sectional view of the utility model Figure 1 ;

[0019] Figure 3 It is sectional view of base assembly of the utility model;

[0020] Figure 4 It is structural schematic diagram of spacing assembly of the utility model.

[0021] Mark number explanation in drawing:

[0022] 1, base assembly;101, bottom plate;102, side plate;103, U-shaped plate;104, connecting shaft a;105, triangular plate;106, connecting shaft b;2, locking part;201, three claw shape locking plate;202, arc guide groove;3, spacing assembly;301, bottom disc;302, sleeve;303, shaft slot;304, positioning groove;305, movable shaft;306, ball seat;307, locking ball;4, spring body. DETAILED DESCRIPTION

[0023] For example Figures 1-4As shown, the utility model relates to a spring compression type electric power switch executing mechanism, including the bottom base subassembly 1 of inside rotatable setting has locking part 2, bottom base subassembly 1 includes the bottom plate 101 of the side plate 102 formed with two sides symmetry configuration of upper end face, the both sides of bottom plate 101 upper end face are formed with U-shaped plate 103 relative to the side plate 102, and bottom plate 101 upper end face is centrally formed with triangular plate 105, the inside rotatable mounting of triangular plate 105 has connecting shaft b 106, the rotatable mounting of the top end between the opposite face of U-shaped plate 103 has connecting shaft a 104, the outer edge surface of connecting shaft b 106 rotatable mounting has limit component 3, locking part 2 includes the three-pronged locking plate 201 of inside fixedly sleeved in the outer edge surface of connecting shaft a 104, the bottom of three-pronged locking plate 201 is formed with arc guide slot 202, limit component 3 includes the bottom disc 301 of top central configuration formed with sleeve 302, the inside movable mounting of sleeve 302 has telescopic structure, and the outer edge surface of sleeve 302 is sleeved with spring body 4, and the both ends of spring body 4 are respectively abutted to bottom disc 301 and ball seat 306, and telescopic structure includes the ball seat 306 of top central configuration with locking ball 307, the outer edge surface of locking ball 307 is abutted to the inner wall of arc guide slot 202.

[0024] In the embodiment of the utility model, the connecting place of bottom disc 301 and sleeve 302 is formed with shaft slot 303, connecting shaft b 106 rotatable setting in shaft slot 303, the bottom end of bottom disc 301 towards sleeve 302 extension is formed with positioning groove 304, and the both sides of triangular plate 105 movable abut to the inner wall of positioning groove 304.

[0025] In the embodiment of the utility model, telescopic structure includes the movable shaft 305 of centrally configured setting in the bottom of ball seat 306, the bottom end of movable shaft 305 movable setting in sleeve 302, and the both ends bottom surface of claw structure of three-pronged locking plate 201 are formed with the plane structure movable abut to the top of side plate 102.

[0026] Working principle: the embodiment provides a spring compression type electric power switch executing mechanism, when using, in order to prevent the switch from appearing to jump, after the vacuum circuit breaker executes the closing action, three claw-shaped locking plates 201 can be moved to one side, so that three claw-shaped locking plates 201 are twisted, so that locking balls 307 and the inner wall of the arc-shaped guide groove 202 are relatively moved, in the process, because the arc-shaped guide groove 202 is arc-shaped structure, so it will extrude locking balls 307 and produce torsion to one side, make the limiting component 3 deflection, so that the spring body 4 is deformed, in the process, the movable shaft 305 is retracted into the sleeve 302, after the limiting component 3 is deflected to the position, locking balls 307 and the inner wall of the arc-shaped guide groove 202 are closely combined under the action of the elastic force generated by the deformation of the spring body 4, reach balance, so as to limit the three claw-shaped locking plates 201 to move to the other side under the action of not receiving external force, realize locking, so that the limiting of the mechanism is beneficial to realize the effect of preventing the vacuum circuit breaker from jumping after closing.

[0027] The embodiment of the utility model discloses the better embodiment, but is not limited to this, the ordinary skill of the art, easily understand the spirit of the utility model according to the above-mentioned embodiment, and make different extension and change, but as long as do not depart from the spirit of the utility model, all are within the protection scope of the utility model.

Claims

1. A spring-closed power switch actuator, characterized by The base assembly (1) is internally rotatable and provided with a locking component (2); The base assembly (1) comprises a bottom plate (101) symmetrically formed with side plates (102) on both sides of the upper end surface, U-shaped plates (103) are formed on both sides of the upper end surface of the bottom plate (101) relative to the side plates (102), and a triangular plate (105) is formed in the middle of the upper end surface of the bottom plate (101), a connecting shaft b (106) is rotatably installed in the interior of the triangular plate (105), a connecting shaft a (104) is rotatably installed between the top ends of the opposite faces of the U-shaped plates (103), and a limiting assembly (3) is rotatably installed on the outer edge surface of the connecting shaft b (106); The locking component (2) comprises a three-prong-shaped locking plate (201) fixedly sleeved on the outer edge surface of the connecting shaft a (104), and an arc-shaped guide groove (202) is formed in the bottom of the three-prong-shaped locking plate (201); The limiting assembly (3) comprises a bottom disc (301) with a sleeve (302) formed in the middle of the top, a telescopic structure is movably installed in the interior of the sleeve (302), a spring body (4) is sleeved on the outer edge surface of the sleeve (302), and the two ends of the spring body (4) are respectively abutted against the bottom disc (301) and a ball seat (306); The telescopic structure comprises a ball seat (306) with a locking ball (307) formed in the middle of the top, and the outer edge surface of the locking ball (307) is abutted against the inner wall of the arc-shaped guide groove (202).

2. A spring-operated power switch actuator according to claim 1, characterized in that An axle groove (303) is formed in the connection between the bottom disc (301) and the sleeve (302), and the connecting shaft b (106) is rotatably arranged in the axle groove (303).

3. A spring-operated power switch actuator according to claim 2, wherein A positioning groove (304) is formed in the middle of the bottom disc (301) extending towards the bottom end of the sleeve (302), and the two sides of the triangular plate (105) are movably abutted against the inner wall of the positioning groove (304).

4. A spring-operated power switch actuator according to claim 1, wherein The telescopic structure comprises a movable shaft (305) movably arranged in the bottom of the ball seat (306), and the bottom end of the movable shaft (305) is movably arranged in the sleeve (302).

5. A spring-operated power switch actuator according to claim 1, wherein The bottom surfaces of the two ends of the prong-shaped structure of the three-prong-shaped locking plate (201) are both flat structures movably abutted against the top of the side plate (102).

Images