Vertical push-pull structure of isolating switch

Abstract

The utility model provides a vertical push-pull structure of an isolating switch. The vertical push-pull structure comprises a fixed mounting piece, a vertical transmission joint and a vertical transmission rod. The vertical transmission joints are arranged at intervals along the extension direction of the vertical transmission rod, and each vertical transmission joint is pivoted with the fixed mounting piece through a connecting rod; the upper end of the vertical transmission rod is pivoted with the lower end of the manipulator push-pull rod; the upper end of the manipulator push-pull rod is pivoted with the middle part of the electrified arm; one section of the electrifying arm is pivoted with the moving contact, and the other end of the electrifying arm is a free end; and the vertical transmission rod moves up and down along the vertical direction to pull or push the vertical transmission rod to drive the electrifying arm to swing around the pivoting position of the electrifying arm and the moving contact, so that the free end of the electrifying arm and the static contact are switched on or switched off.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical equipment especially disconnecting switch. BACKGROUND

[0002] The disconnecting switch is widely used in high and low voltage distribution system, control system and electric equipment, and its function is to isolate high voltage power supply and guarantee the safety of maintenance personnel. When the line needs to be maintained, the disconnecting switch is pulled open to disconnect the high voltage of the downstream and form obvious disconnection. The lock hook on the live arm of the moving contact in the closed state of the disconnecting switch used in the transformer area of power transformer is hooked in the lock eye of the static contact to prevent the live arm from falling; when the manual operation is opened, the lock hook is pulled open by the operating rod, and then the manual opening is carried out.

[0003] The transmission rod of the traditional disconnecting switch is rotary, and the slippage easily occurs in the transmission process, and the reliability is not high enough. UTILITY MODEL CONTENTS

[0004] The utility model solves the main technical question that provides a kind of disconnecting switch vertical push-pull structure, and the way of vertical push-pull is more reliable, and mechanical performance is strong.

[0005] In order to solve the above technical problem, the utility model provides a kind of disconnecting switch vertical push-pull structure, comprising: fixed mounting piece, vertical transmission joint and vertical transmission rod.

[0006] The vertical transmission joint is spaced apart along the extension direction of the vertical transmission rod, and each vertical transmission joint is respectively connected with the fixed mounting piece by connecting rod; the upper end of the vertical transmission rod is connected with the lower end of the mechanical hand push-pull rod; the upper end of the mechanical hand push-pull rod is connected with the middle part of the live arm; one end of the live arm is connected with the moving contact, and the other end is free end;

[0007] The vertical transmission rod moves up and down along the vertical direction to pull or push the vertical transmission rod to drive the live arm to swing around the pivot connection position of the live arm and the moving contact, so that the free end of the live arm is closed or opened with the static contact.

[0008] In a preferred embodiment: the fixed mounting piece includes a fixed plate and a connecting plate, and the fixed plate and the connecting plate are fixed by angle iron; the connecting plate is connected with the vertical transmission joint by the connecting rod.

[0009] In a preferred embodiment: the connecting rod and the connecting plate are provided with fasteners for releasing or fastening the connecting rod and the connecting plate at the pivot connection position.

[0010] In a preferred embodiment: the movable contact is provided with a spring; when the vertical transmission rod drives the current-carrying arm to swing to the open position around the pivot joint position of the current-carrying arm and the movable contact, the current-carrying arm abuts against the spring to accumulate elastic return force.

[0011] In a preferred embodiment: the lower end of the vertical transmission rod is connected with a transmission mechanism, and the transmission mechanism is used to drive the vertical transmission rod to move up and down.

[0012] In a preferred embodiment: the transmission mechanism comprises a motor, and the output rotating shaft of the motor is arranged on the side of the vertical transmission rod and is pivotally connected with the vertical transmission rod.

[0013] In a preferred embodiment: the transmission mechanism further comprises a control box, and the output rotating shaft is arranged on the side of the control box and is pivotally connected with the vertical transmission rod through a connecting rod.

[0014] In a preferred embodiment: two length-directional accommodating grooves are arranged on the connecting rod, and bolts are respectively fixedly connected with the output rotating shaft through the accommodating grooves.

[0015] In a preferred embodiment: the control box is also connected with the fixed mounting member through an angle steel.

[0016] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0017] 1. The utility model provides a vertical push-pull structure of isolating switch, and the isolating switch adopts the vertical push-pull structure, has strong mechanical performance and less risk sources of failure.

[0018] 2. The utility model provides a vertical push-pull structure of isolating switch, and has simple structure, simple process, convenient installation and high reliability. DRAWINGS

[0019] Figure 1 It is a schematic view of the vertical push-pull structure of the isolating switch of the utility model;

[0020] Figure 2 It is a combined schematic view of the vertical push-pull structure and the transmission mechanism of the isolating switch of the utility model;

[0021] Figure 3 It is a schematic view of the fixed mounting member and the vertical transmission joint in the preferred embodiment of the utility model;

[0022] Figure 4 It is a front view of the control box in the preferred embodiment of the utility model;

[0023] Figure 5 It is a side view of the control box in the preferred embodiment of the utility model;

[0024] Figure 6 Figure 1 is a schematic view of the inside of the control box according to the preferred embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the technical scheme and characteristics of the present application more clear, the present application will be further described in detail below with reference to the drawings and specific examples, and it should be understood that these examples are only used to illustrate the present application and not to limit the scope of the present application, and after reading the present application, various equivalent modifications of the present application by those skilled in the art all fall within the scope defined by the claims attached hereto.

[0026] Reference Figures 1-6 The embodiment provides a vertical push-pull structure of a disconnecting switch, which comprises a fixed mounting part 1, a vertical transmission joint 2 and a vertical transmission rod 3.

[0027] The vertical transmission joints 2 are arranged at intervals along the extension direction of the vertical transmission rod 3, and each vertical transmission joint 2 is pivotally connected to the fixed mounting part 1 through a connecting rod 4; the upper end of the vertical transmission rod 3 is pivotally connected to the lower end of a mechanical hand push-pull rod 5; the upper end of the mechanical hand push-pull rod 5 is pivotally connected to the middle part of an energized arm 6; one end of the energized arm 6 is pivotally connected to a moving contact 7, and the other end is a free end.

[0028] The vertical transmission rod 3 moves up and down along the vertical direction to pull or push the vertical transmission rod 3 to drive the energized arm 6 to swing around the pivot connection position of the energized arm 6 and the moving contact 7, so that the free end of the energized arm 6 is closed or opened with a static contact 8.

[0029] In the embodiment, the fixed mounting part 1 comprises a fixed plate 11 and a connecting plate 12, and the fixed plate 11 and the connecting plate 12 are fixed through an angle iron 13; the connecting plate 12 is pivotally connected to the vertical transmission joint 2 through the connecting rod 4.

[0030] In addition, a fastener 41 for releasing or fastening the pivot connection of the connecting rod 4 and the connecting plate 12 is arranged at the pivot connection position of the connecting rod 4 and the connecting plate 12. In this way, the tightness of the pivot connection can be adjusted.

[0031] The moving contact 7 is provided with an elastic sheet 71; when the vertical transmission rod 3 drives the energized arm 6 to swing around the pivot connection position of the energized arm 6 and the moving contact 7 to the open position, the energized arm 6 abuts against the elastic sheet 71 to accumulate elastic return force of the elastic sheet 71. In this way, the elastic sheet 71 accumulates enough elastic return force when the switch is closed, and once the energized arm 6 and the elastic sheet 71 are disengaged, the elastic return force released by the elastic sheet 71 can drive the energized arm 6 to quickly fall to the open position.

[0032] To realize the up-down movement of the vertical transmission rod 3, the lower end of the vertical transmission rod 3 is connected with a transmission mechanism 9, which is used to drive the vertical transmission rod 3 to move up and down. In the embodiment, the transmission mechanism 9 comprises a motor 91, and the output rotating shaft 92 of the motor 91 is arranged on the side of the vertical transmission rod 3 and is pivotally connected with the vertical transmission rod 3. Through the side transmission mode, the transmission structure is further simplified.

[0033] In the embodiment, the transmission mechanism 9 further comprises a control box 93, and a door plate 931 is arranged on the control box 93. The door plate 931 is provided with a handle 932 for opening or closing the door plate 931. The motor 91 is arranged in the control box. The side of the control box 93 is provided with the output rotating shaft 92, and the output rotating shaft 92 is pivotally connected with the vertical transmission rod 3 through a connecting rod 94. Two accommodating grooves 95 are arranged on the connecting rod 94 along the length direction, and the bolts 96 are respectively fixedly connected with the output rotating shaft 92 through the accommodating grooves 95.

[0034] To fix the control box 93, the control box 93 is also connected with the fixed mounting part 1 through an angle steel.

[0035] The above-mentioned isolating switch vertical push-pull structure has the advantages of simple structure, simple process, convenient installation and high reliability.

[0036] The above-mentioned is only one specific embodiment of the present application, but the design concept of the present application is not limited to this, and any non-essential change of the present application using this concept belongs to the act of infringing the protection scope of the present application.

Claims

1. A vertical draw-out structure of an isolating switch, characterized by The utility model relates to a vertical transmission mechanism for a circuit breaker, comprising: a fixed mounting, vertical transmission joints and a vertical transmission rod; the vertical transmission joints are arranged at intervals along the extension direction of the vertical transmission rod, and each vertical transmission joint is pivotally connected to the fixed mounting through a connecting rod; the upper end of the vertical transmission rod is pivotally connected to the lower end of a mechanical hand push-pull rod; the upper end of the mechanical hand push-pull rod is pivotally connected to the middle part of an electrified arm; one end of the electrified arm is pivotally connected to a moving contact, and the other end is a free end; the vertical transmission rod moves up and down along the vertical direction to pull or push the vertical transmission rod to drive the electrified arm to swing around the pivot connection position of the electrified arm and the moving contact, so that the free end of the electrified arm is closed or opened with a stationary contact.

2. The vertical draw-out structure of the isolating switch according to claim 1, characterized in that: the fixed mounting comprises a fixed plate and a connecting plate, and the fixed plate and the connecting plate are fixed through an angle steel; the connecting plate is pivotally connected to the vertical transmission joint through the connecting rod.

3. The vertical draw-out structure of the isolating switch according to claim 1, characterized in that: a fastener is arranged at the pivot connection position of the connecting rod and the connecting plate to loosen or tighten the pivot connection of the connecting rod and the connecting plate.

4. The vertical draw-out structure of the isolating switch according to claim 1, characterized in that: an elastic sheet is arranged on the moving contact; when the vertical transmission rod drives the electrified arm to swing around the pivot connection position of the electrified arm and the moving contact to the open position, the electrified arm abuts against the elastic sheet to accumulate elastic restoring force.

5. The vertical draw-out structure of the isolating switch according to claim 1, characterized in that: a transmission mechanism is connected to the lower end of the vertical transmission rod, and the transmission mechanism is used to drive the vertical transmission rod to move up and down.

6. The vertical draw-out structure of the isolating switch according to claim 5, characterized in that: the transmission mechanism comprises a motor, and the output shaft of the motor is arranged on the side surface of the vertical transmission rod and is pivotally connected to the vertical transmission rod.

7. The vertical draw-out structure of the isolating switch according to claim 6, characterized in that: the transmission mechanism further comprises a control box, and the side surface of the control box is provided with the output shaft, and the output shaft is pivotally connected to the vertical transmission rod through a connecting rod.

8. The vertical draw-out structure of the isolating switch according to claim 7, characterized in that: two length-directional accommodation grooves are arranged on the connecting rod, and bolts are respectively fixedly connected to the output shaft through the accommodation grooves.

9. The vertical draw-out structure of the isolating switch according to claim 7, characterized in that: the control box is also connected to the fixed mounting through an angle steel.

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