Valve mechanism of switch cabinet

Abstract

The utility model discloses a switch cabinet valve mechanism, which relates to the field of a movable door of a switch cabinet circuit break chamber and comprises two guide rods positioned at one end of the inner wall of the circuit break chamber, a guide rail fixedly mounted on the side wall of the circuit break chamber and a second fixing lug fixedly mounted at the bottom end of the inner wall of the circuit break chamber. Two movable doors are slidably installed on the outer wall of the guide rod, the two ends of one side of each movable door are connected with the guide rails through swing arm mechanisms, telescopic mechanisms are rotatably installed on the inner sides of the second fixing lugs, and the ends, away from the movable doors, of the swing arm mechanisms are connected with the telescopic mechanisms through pushing mechanisms. According to the utility model, the limiting disc, the pushing mechanism, the pushing frame in the pushing mechanism and the guide groove with the vertical groove part and the inclined groove part are arranged, so that when the circuit breaker is not completely inserted, the two movable doors are in a maximum opening state, and interference-free butt joint of an electric plug and an electric socket of the circuit breaker is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the movable door field of switch cabinet circuit breaker chamber, specifically a switch cabinet movable door mechanism. BACKGROUND

[0002] The switch cabinet has an instrument chamber and a circuit breaker chamber, and a movable door mechanism is installed in the inner wall of the circuit breaker chamber, which is in a closed state when the circuit breaker is not installed and slides into the circuit breaker chamber, and the movable door mechanism is pressed to open when the circuit breaker is slid and pushed in, so that the electrical plug at the tail end of the circuit breaker is no longer covered by the electrical socket and is connected to the electrical socket.

[0003] The existing movable door mechanism is in a fully open state when the circuit breaker is fully inserted, and the electrical plug at the tail end of the circuit breaker protrudes outward, which causes the movable door to block the movement of the protruding electrical socket of the circuit breaker during installation, which is not convenient. UTILITY MODEL CONTENTS

[0004] The utility model discloses a switch cabinet movable door mechanism.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a switch cabinet movable door mechanism, including two guide rods at one end of the inner wall of the circuit breaker chamber, a guide rail fixedly installed on the side wall of the circuit breaker chamber and a No.

[0006] As a further scheme of the utility model: the swing arm mechanism includes a No.

[0007] As a further scheme of the utility model: the push mechanism includes the push frame fixedly installed at the end of the swing arm away from the movable door, the push frame is in "L" type structure, the push frame is rotationally connected with the roller through the rotating shaft, the rotating shaft is rotationally connected with the push frame and the swing arm through the bearing, the inside of the push frame is provided with the guide groove in "L" type structure below, the inner wall of the guide groove is movably connected with the push rod.

[0008] As a further scheme of the utility model: the telescopic mechanism includes the telescopic arm rotationally installed at one end of the push rod, the outer wall of the telescopic arm is slidably connected with the rotating arm below, the bottom end of the sliding part of the telescopic arm is fixedly installed with the second spring between the inner wall bottom end of the rotating arm, the bottom end of the rotating arm is rotationally connected with the second fixed lug.

[0009] As a further scheme of the utility model: the butt joint surface of the two movable doors is provided with the sealing strip.

[0010] Compared with the prior art, the utility model has the advantages that:

[0011] 1. By setting the limiting disc, the push mechanism, the push frame in the push mechanism and the guide groove with vertical groove part and inclined groove part, the two movable doors can be in the maximum opening state when the circuit breaker is not completely inserted, and the interference-free butt joint of the circuit breaker electric plug and the electric socket is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structural schematic diagram of the utility model;

[0013] Figure 2 It is the structural schematic diagram of the utility model Figure 2 It is the local enlarged view of A in the middle;

[0014] Figure 3 It is the structural schematic diagram of the telescopic mechanism of the utility model.

[0015] In the drawing: 1, guide rod; 2, limiting disc; 3, movable door; 4, first fixed lug; 5, guide rail; 6, swing arm; 7, push frame; 8, guide groove; 9, push rod; 10, telescopic arm; 11, rotating arm; 12, second fixed lug; 13, first spring; 14, roller; 15, second spring. DETAILED DESCRIPTION

[0016] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the present utility model.

[0017] Please refer to Figures 1-3 In the utility model embodiment, a switch cabinet door mechanism comprises two guide rods 1 located at one end of the inner wall of the circuit breaking chamber, a guide rail 5 fixedly installed on the side wall of the circuit breaking chamber and a No. 2 fixed lug 12 fixedly installed at the bottom end of the inner wall of the circuit breaking chamber, the outer wall of the guide rod 1 is slidably installed with two movable doors 3, the movable door 3 is connected with the guide rail 5 through a swing arm mechanism at both ends of one side, the inner side of the No. 2 fixed lug 12 is rotatably installed with an extension mechanism, the end of the swing arm mechanism away from the movable door 3 is connected with the extension mechanism through a pushing mechanism, the bottom end of the movable door 3 located below abuts against a No. 1 spring 13 between the bottom end of the inner wall of the circuit breaking chamber, the No. 1 spring 13 is sleeved on the outer periphery of the guide rod 1, the outer wall of the guide rod 1 is integrally formed with a limiting disc 2, and the limiting disc 2 is used for limiting the maximum upward moving distance of the movable door 3 above.

[0018] In the utility model embodiment: when the circuit breaker is pushed into the circuit breaking chamber through the guide rail 5 below the inner wall of the circuit breaking chamber, the tail end of the circuit breaker gradually approaches the pushing mechanism in the process of pushing, until the tail end of the circuit breaker is in contact with the pushing mechanism, the pushing mechanism moves under the action of force to pull the extension mechanism to rotate around the No. 2 fixed lug 12, at the same time, the pushing mechanism drives the swing arm mechanism to act, the swing arm mechanism pushes the two movable doors 3 to move in opposite directions, the movable door 3 above moves upward, and the movable door 3 below moves downward, until the push rod 9 enters the inclined groove part of the guide groove 8, since the lower part of the guide groove 8 is in an inclined state, and the swing arm mechanism can only move along the guide rail 5, therefore, after the two movable doors 3 are opened to the maximum position, the two movable doors 3 are kept in the maximum open state, at this time, the push rod 9 under the action of force no longer presses the pushing frame 7, the two movable doors 3 are opened to the maximum position, at this time, the extension mechanism is elongated, after the movable door 3 is completely opened, the electric plug at the tail end of the circuit breaker is gradually aligned with the circuit breaker electric socket at the end of the inner wall of the circuit breaking chamber, and the alignment is completed.

[0019] When the circuit breaker is removed, at this time, the push rod 9 moves along the inclined groove part of the guide groove 8 to the position of the intersection of the vertical groove part and the inclined groove part of the guide groove 8 under the reset of the extension mechanism, at this time, the extension mechanism is shortened to the shortest position, the circuit breaker continuously moving outward no longer limits the push rod 9, the No. 1 spring 13 resets to reset the swing arm mechanism, at this time, the push rod 9 resets upward along the vertical groove part of the guide groove 8.

[0020] Please refer to Figure 1 AndFigure 2 The swing arm mechanism comprises a first fixed lug 4 fixedly installed at both ends of one side of the movable door 3, a swing arm 6 rotatably installed on the inner wall of the first fixed lug 4, two swing arms 6 aligned in the up-down direction and symmetrically arranged, a roller 14 rotatably installed at the end of the swing arm 6 away from the first fixed lug 4, and the roller 14 located in the inner cavity of the guide rail 5.

[0021] In this embodiment, when the pushing mechanism is subjected to a force, the pushing mechanism drives the roller 14 connected thereto to move along the inner cavity of the guide rail 5, at this time, the end of the swing arm 6 away from the movable door 3 moves along the guide rail 5, and the other end of the swing arm 6 pushes the first fixed lug 4 to move in the vertical direction, thereby achieving the opening of the two movable doors 3.

[0022] Please refer to Figure 1 and Figure 2 The pushing mechanism comprises a pushing frame 7 fixedly installed at the end of the swing arm 6 away from the movable door 3, the pushing frame 7 has an "L" shape structure, the pushing frame 7 is rotatably connected with the roller 14 through a rotating shaft, the rotating shaft is rotatably connected with the pushing frame 7 and the swing arm 6 through bearings, a guide groove 8 with an "L" shape structure is formed in the lower part of the inside of the pushing frame 7, and a push rod 9 is movably connected to the inner wall of the guide groove 8.

[0023] In this embodiment, during the process of pushing the circuit breaker into the circuit breaking chamber, the tail end of the circuit breaker contacts and presses the push rod 9, the push rod 9 pulls the telescopic mechanism to rotate around the second fixed lug 12, and at the same time, the push rod 9 rotates downward along the vertical groove part of the guide groove 8, at this time, the pushing frame 7 slides along the guide rail 5, when the push rod 9 moves to the position where the vertical groove part of the guide groove 8 meets the inclined groove part, at this time, the rotating door is opened to the maximum position, and the electrical socket of the circuit breaker is completely exposed, at this time, the electrical plug of the tail end of the circuit breaker has not been connected with the electrical socket, at this time, the circuit breaker continues to slide, the circuit breaker continues to press the push rod 9, at this time, the push rod 9 enters the inclined groove part from the vertical groove part of the guide groove 8 and slides along the inclined groove part, since the swing arm mechanism can only slide along the direction of the guide rail 5 and the pushing frame 7 cannot move in the up-down direction, at this time, the pushing frame 7 remains at the current position, and the sliding of the push rod 9 along the inclined groove part drives the telescopic mechanism to be lengthened and at the same time, the telescopic mechanism rotates around the second fixed lug 12.

[0024] Similarly, when the circuit breaker is taken out, the two movable doors 3 will not be directly closed in the first period of time when the circuit breaker is pulled out, and will be closed only after the push rod 9 moves to the position directly below the vertical groove part of the guide groove 8.

[0025] Please refer to Figure 1 , Figure 2 and Figure 3The telescopic mechanism comprises a telescopic arm 10 rotatably installed at one end of the push rod 9, a rotating arm 11 slidably connected to the lower wall of the telescopic arm 10, and a second spring 15 fixedly installed between the protrusion at the bottom end of the sliding part of the telescopic arm 10 and the bottom end of the inner wall of the rotating arm 11.

[0026] In the present embodiment, when the pushing mechanism drives one end of the telescopic arm 10 to rotate, the telescopic arm 10 and the rotating arm 11 do not slide relative to each other, and they rotate synchronously when the push rod 9 is located in the vertical groove part of the guide groove 8; when the push rod 9 enters the inclined groove part from the vertical groove part of the guide groove 8, the push rod 9 drives the telescopic arm 10 to slide outwards in the inner cavity of the rotating arm 11, and the second spring 15 is compressed;

[0027] When the circuit breaker is taken out, the telescopic arm 10 and the push rod 9 are reset along the inclined groove part under the reset of the second spring 15, at this time, the push frame 7 remains stationary, until the push rod 9 enters the vertical groove part directly below, at this time, the entire device is reset under the reset of the first spring 13.

[0028] Please pay attention to Figure 1 The abutting surfaces of the two movable doors 3 are both provided with sealing strips.

[0029] In the present embodiment, the design can ensure that the two sealing strips are in a compressed and deformed state when the two movable doors 3 are in a closed state, thereby ensuring the sealing property of the abutting position.

[0030] The above only describes the preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A switch cabinet door mechanism comprising two guide rods (1) located at one end of the inner wall of the circuit breaker chamber, a guide rail (5) fixedly installed on the side wall of the circuit breaker chamber, and a No. 2 fixed lug (12) fixedly installed at the bottom end of the inner wall of the circuit breaker chamber, characterized in that, The outer wall of the guide rod (1) is slidingly installed with two movable doors (3), one side of the movable door (3) is connected with the guide rail (5) through a swing arm mechanism, the inner side of the second fixed lug (12) is rotatably installed with a telescopic mechanism, the end of the swing arm mechanism away from the movable door (3) is connected with the telescopic mechanism through a push mechanism, the bottom end of the movable door (3) below is abutted with the bottom end of the circuit breaking chamber inner wall through a first spring (13), the first spring (13) is sleeved on the outer periphery of the guide rod (1), the outer wall of the guide rod (1) is integrally formed with a limiting disc (2), and the limiting disc (2) is used for limiting the maximum upward movement distance of the movable door (3) above.

2. A switchgear door mechanism according to claim 1, characterised in that The swing arm mechanism comprises a first fixed lug (4) fixedly installed on both ends of one side of the movable door (3), the inner wall of the first fixed lug (4) is rotatably installed with a swing arm (6), two swing arms (6) aligned in the up-down direction are in a symmetrical state, the end of the swing arm (6) away from the first fixed lug (4) is rotatably installed with a roller (14), and the roller (14) is located in the inner cavity of the guide rail (5).

3. A switchgear door mechanism according to claim 2, characterised in that The push mechanism comprises a push frame (7) fixedly installed at the end of the swing arm (6) away from the movable door (3), the push frame (7) is in an "L" type structure, the push frame (7) is rotatably connected with the roller (14) through a rotating shaft, the rotating shaft is rotatably connected with the push frame (7) and the swing arm (6) through a bearing, and the inside of the push frame (7) is provided with a guide groove (8) in an "L" type structure.

4. A switchgear door mechanism according to claim 3, characterised in that The telescopic mechanism comprises a telescopic arm (10) rotatably installed at one end of the push rod (9), the outer wall of the telescopic arm (10) is slidingly connected with a rotating arm (11) below, the bottom end of the protruding part of the sliding part of the telescopic arm (10) is fixedly installed with a second spring (15) between the inner wall bottom end of the rotating arm (11), and the bottom end of the rotating arm (11) is rotatably connected with the second fixed lug (12).

5. A switchgear door mechanism according to claim 1, wherein The abutting surfaces of the two movable doors (3) are both installed with sealing strips. The outer wall of the guide rod (1) is slidingly installed with two movable doors (3), one side of the movable door (3) is connected with the guide rail (5) through a swing arm mechanism, the inner side of the second fixed lug (12) is rotatably installed with a telescopic mechanism, the end of the swing arm mechanism away from the movable door (3) is connected with the telescopic mechanism through a push mechanism, the bottom end of the movable door (3) below is abutted with the bottom end of the circuit breaking chamber inner wall through a first spring (13), the first spring (13) is sleeved on the outer periphery of the guide rod (1), the outer wall of the guide rod (1) is integrally formed with a limiting disc (2), and the limiting disc (2) is used for limiting the maximum upward movement distance of the movable door (3) above.

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