Hanging type power switch executing mechanism

Abstract

The utility model discloses a hitching type power switch actuating mechanism, relates to the technical field of power switches, and aims to solve the technical problem that the switch is easy to trip in a stealing manner when the current of the existing actuating mechanism fluctuates. The electromagnetic mechanism comprises an electromagnet a with a supporting column formed in the middle of the top, U-shaped plates are symmetrically formed at the top end of the supporting column, a movable shaft is rotatably installed between the U-shaped plates, a limiting assembly is movably arranged on the outer edge face of the movable shaft, an electromagnet b is movably arranged at the top of the electromagnet a, and the top of the electromagnet b is fixedly connected with the lower end face of a supporting sleeve. Supporting blocks are symmetrically formed on one side of the upper end face of the supporting sleeve, a self-locking assembly is movably arranged between the supporting blocks, and a shaft rod a and a shaft rod b are connected between the tops and the bottoms of the opposite faces of the supporting blocks. 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 kind of hanging connection type power switch actuator. BACKGROUND

[0002] Vacuum circuit breaker is the abbreviation of vacuum arc-extinguishing circuit breaker, also known as arc-extinguishing can occur in vacuum medium circuit breaker. Its working principle is: when the moving contact and static contact of vacuum circuit breaker are opened under the action of operating mechanism, arc is generated between contacts, and vapor is emitted from the surface of contacts under high temperature. Due to the special shape of the contact, a magnetic field is generated when the current passes through, and the arc moves rapidly along the tangent direction of the contact surface under the action of the magnetic field, and part of the metal vapor condenses on the metal cylinder. When the arc naturally crosses zero, it is extinguished, and the dielectric strength between the contacts is quickly restored.

[0003] At present, the actuator of vacuum circuit breaker is mainly driven by electromagnetic operating mechanism to complete the closing and opening actions of circuit breaker. However, the prerequisite for 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 kind of hanging connection type power switch actuator. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims to overcome the shortcomings of the prior art, adapt to the needs of reality, and provide a kind of hanging connection type power switch actuator to solve the technical problem that the existing actuator is prone to jump when the current fluctuates.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a kind of hanging connection type power switch actuator, including the electromagnetic mechanism of the support sleeve of the top setting;

[0006] The electromagnetic mechanism includes an electromagnet a with a support column formed centrally at the top, a U-shaped plate is symmetrically formed at the top end of the support column, a movable shaft is rotatably installed between the U-shaped plates, a limiting assembly is movably arranged on the outer edge surface of the movable shaft, an electromagnet b is movably arranged on the top of the electromagnet a, the top of the electromagnet b is fixedly connected with the lower end surface of the support sleeve, support blocks are symmetrically formed on one side of the upper end surface of the support sleeve, and a self-locking assembly is movably arranged between the support blocks;

[0007] A shaft a and a shaft b are connected between the top and bottom of the opposite surface of the support block;

[0008] The self-locking assembly includes symmetrically arranged connecting plates, one end of the connecting plate is rotatably installed on the outer edge surface of the shaft a, and the other end of the connecting plate is fixedly connected with a connecting shaft;

[0009] The limiting assembly comprises a connecting plate with a movable slot formed in the interior, one end of the connecting plate is rotatably installed on the outer edge surface of the shaft b, the movable shaft is movably arranged in the movable slot, one side of the connecting plate is configured with a sector plate, and the outer edge surface of the sector plate is formed with a limiting clamping groove movably clamped on the connecting shaft.

[0010] The utility model discloses a connecting shaft and limiting clamping groove are designed, when the vacuum circuit breaker executes the closing action, it passes through the electromagnetic force and makes the electromagnet b and electromagnet a attract, and the support column moves up in the attract process, can make movable shaft move up and slide in movable slot, the end of connecting plate is lifted in the process of sliding, makes the deflection of connecting plate, under the action of gravity, the connecting shaft is clamped into the limiting clamping groove, thereby limiting the downward movement of electromagnet a, thereby realizing the effect of preventing the steal trip after the closing of the vacuum circuit breaker.

[0011] Preferably, the electromagnet b is in a hollow ring structure for the support column and the U-shaped plate to pass through.

[0012] Preferably, the middle part of the support sleeve is centrally formed with a slot hole for the support column and the U-shaped plate to pass through.

[0013] Preferably, the outer edge surface of the support column is sleeved with a spring, the bottom end of the spring is fixedly connected to the electromagnet a, and the top end of the spring is movably abutted to the bottom of the support sleeve.

[0014] Preferably, the inside of the U-shaped plate is formed with an axle hole for the movable shaft to be rotatably installed.

[0015] Preferably, the movable slot is in a straight slot structure, and the outer edge surface of the movable shaft abuts against the inner wall of the movable slot.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] The utility model discloses a connecting shaft and limiting clamping groove are designed, when the vacuum circuit breaker executes the closing action, it passes through the electromagnetic force and makes the electromagnet b and electromagnet a attract, and the support column moves up in the attract process, can make movable shaft move up and slide in movable slot, the end of connecting plate is lifted in the process of sliding, makes the deflection of connecting plate, under the action of gravity, the connecting shaft is clamped into the limiting clamping groove, thereby limiting the downward movement of electromagnet a, thereby realizing the effect of preventing the steal trip after the closing of the vacuum circuit breaker, and solving the problem that the existing actuator is prone to steal trip when the current fluctuates. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram of the utility model;

[0019] Figure 2 It is the utility modelFigure 1 a sectional view thereof;

[0020] Figure 3 is a structural schematic view of the limiting assembly of the utility model;

[0021] Figure 4 is a structural schematic view of the self-locking assembly of the utility model.

[0022] Explanation of reference numerals in the drawing:

[0023] 1, electromagnetic mechanism; 101, electromagnet a; 102, support column; 103, U-shaped plate; 104, movable shaft; 105, spring; 2, electromagnet b; 3, support sleeve; 4, support block; 5, shaft rod a; 6, shaft rod b; 7, limiting assembly; 701, connecting plate; 702, movable slot; 703, sector plate; 704, limiting clamping groove; 8, self-locking assembly; 801, connecting plate; 802, connecting shaft. DETAILED DESCRIPTION

[0024] As Figures 1-4 shown, the utility model relates to a kind of hanging power switch executing mechanism, including the electromagnetic mechanism 1 of support sleeve 3 being arranged in top, electromagnetic mechanism 1 includes the electromagnet a 101 being formed with support column 102 in the middle structure of top, the top end of support column 102 is formed with U-shaped plate 103 in symmetry structure, U-shaped plate 103 can be rotatably installed with movable shaft 104 between, movable shaft 104 is movably provided with limiting assembly 7 on the outer edge surface, the top of electromagnet a 101 movably is provided with electromagnet b 2, the top of electromagnet b 2 is fixedly connected with the lower end surface of support sleeve 3, the upper end surface of support sleeve 3 one side is formed with support block 4 in symmetry structure, self-locking assembly 8 is movably provided with between support block 4, the top and bottom of the face of support block 4 are connected with shaft rod a 5 and shaft rod b 6 in structure, self-locking assembly 8 includes the connecting plate 801 being arranged in symmetry, one end of connecting plate 801 can be rotatably installed on the outer edge surface of shaft rod a 5, and connecting plate 801 between other end is fixedly connected with connecting shaft 802, limiting assembly 7 includes the connecting plate 701 being formed with movable slot 702 inside, one end of connecting plate 701 can be rotatably installed on the outer edge surface of shaft rod b 6, movable shaft 104 is movably arranged in movable slot 702, the one side of connecting plate 701 is formed with sector plate 703, sector plate 703 is formed with limiting clamping groove 704 that is movably engaged with connecting shaft 802 on the outer edge surface.

[0025] In the embodiment of the utility model, electromagnet b2 is annular structure with hollow inside for supporting column 102 and U-shaped plate 103 to pass through, the middle part of supporting sleeve 3 is centrally provided with slot hole for supporting column 102 and U-shaped plate 103 to pass through, spring 105 is sleeved on the outer edge surface of supporting column 102, the bottom end of spring 105 is fixedly connected to electromagnet a101, and the top end of spring 105 movably abuts against the bottom of supporting sleeve 3, the inside of U-shaped plate 103 is provided with shaft hole for rotatably installing movable shaft 104, movable groove 702 is straight groove structure, and the outer edge surface of movable shaft 104 abuts against the inner wall of movable groove 702.

[0026] Working principle: the embodiment provides a hanging type electric power switch executing mechanism, when using, when vacuum circuit breaker executes closing action, it makes electromagnet b2 and electromagnet a101 attract by electromagnetic force, supporting column 102 moves up in the process of attraction, namely, movable shaft 104 can move up and slide in movable groove 702, in the process of sliding, the end of connecting plate 701 is lifted to make connecting plate 701 deflect, connecting shaft 802 is clamped in limiting clamping groove 704 under the action of gravity, thereby limiting the downward movement of electromagnet a101, when opening, by pushing connecting plate 801 towards one side, connecting shaft 802 can be separated from limiting clamping groove 704, and subsequent opening action can be completed.

[0027] The embodiment of the utility model discloses the preferable embodiment, but is not limited to this, and the ordinary skill in the art, the spirit of the utility model can be understood by the above-mentioned embodiment, and different extension and change are made, but as long as not departing from the spirit of the utility model, are within the protection scope of the utility model.

Claims

1. A hingedly mounted power switch actuator, characterized by, Electromagnetic mechanism (1) comprising support sleeve (3) arranged at the top; The electromagnetic mechanism (1) comprises an electromagnet a (101) with a support column (102) centrally arranged at the top, the top end of the support column (102) is symmetrically arranged with a U-shaped plate (103), the U-shaped plate (103) is rotatably mounted with a movable shaft (104), the outer edge surface of the movable shaft (104) is movably arranged with a limiting assembly (7), the top of the electromagnet a (101) is movably arranged with an electromagnet b (2), the top of the electromagnet b (2) is fixedly connected with the lower end surface of the support sleeve (3), one side of the upper end surface of the support sleeve (3) is symmetrically arranged with a support block (4), the support block (4) is movably arranged with a self-locking assembly (8) between them; The top and bottom of the opposite surface of the support block (4) are connected with shaft a (5) and shaft b (6); The self-locking assembly (8) comprises symmetrically arranged connecting plates (801), one end of the connecting plate (801) is rotatably mounted on the outer edge surface of the shaft a (5), and the other end of the connecting plate (801) is fixedly connected with a connecting shaft (802); The limiting assembly (7) comprises a connecting plate (701) with a movable slot (702) formed inside, one end of the connecting plate (701) is rotatably mounted on the outer edge surface of the shaft b (6), the movable shaft (104) is movably arranged in the movable slot (702), one side of the connecting plate (701) is arranged with a sector plate (703), the outer edge surface of the sector plate (703) is arranged with a limiting slot (704) movably engaged with the connecting shaft (802).

2. A hingedly connected power switch actuator according to claim 1 wherein, The electromagnet b (2) is in the form of a ring structure with a hollow inside for the support column (102) and the U-shaped plate (103) to pass through.

3. A hingedly connected power switch actuator according to claim 1 wherein, The middle of the support sleeve (3) is centrally arranged with a slot hole for the support column (102) and the U-shaped plate (103) to pass through.

4. A hingedly connected power switch actuator according to claim 1 wherein, The outer edge surface of the support column (102) is sleeved with a spring (105), the bottom end of the spring (105) is fixedly connected with the electromagnet a (101), and the top end of the spring (105) movably abuts against the bottom of the support sleeve (3).

5. A hingedly connected power switch actuator according to claim 1 wherein, The inside of the U-shaped plate (103) is arranged with an axle hole for rotatably mounting the movable shaft (104).

6. A hingedly connected power switch actuator according to claim 1 wherein, The movable slot (702) is in the form of a straight slot structure, and the outer edge surface of the movable shaft (104) abuts against the inner wall of the movable slot (702).

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