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CN-115910662-B - Switch cabinet interlocking protection mechanism and switch cabinet

CN115910662BCN 115910662 BCN115910662 BCN 115910662BCN-115910662-B

Abstract

The invention discloses a switch cabinet interlocking protection mechanism and a switch cabinet, which relate to the technical field of electrical equipment and comprise an outer protective shell, an isolating switch control mechanism, a handle disc and a handle disc, wherein the outer protective shell is penetrated and arranged on a cabinet door, the isolating switch control mechanism comprises a rope and a driving mechanism, the driving mechanism is penetrated and arranged in the outer protective shell, the driving mechanism comprises a mounting block, a rotating shaft body and a limiting piece, the rotating shaft body is provided with a latch, three accommodating grooves are formed in the mounting block, the rotating shaft body is rotated or translated by external force, the latch of the rotating shaft body can be switched into different accommodating grooves, the latch is positioned in one of the accommodating grooves under the action of the limiting piece, the position of the latch is switched, so that the isolating switch is switched on and off by pulling the rope.

Inventors

  • LIU JUN
  • ZHU JUN

Assignees

  • 江苏荣威电气有限公司

Dates

Publication Date
20260508
Application Date
20221130

Claims (6)

  1. 1. The interlocking protection mechanism of the switch cabinet is characterized by comprising the following components: the outer protective shell is arranged on the cabinet door in a penetrating way, and two ends of the outer protective shell are provided with openings; The isolating switch control mechanism comprises a rope connected with an isolating switch handle, a driving mechanism for controlling the rope to pull so as to open or close the isolating switch, wherein the isolating switch handle is arranged in a switch cabinet operation chamber; The driving mechanism comprises a mounting block, a rotating shaft body and a limiting piece, wherein the mounting block is arranged in an outer protective shell, the end part of the rotating shaft body, which is positioned at the inner side of a cabinet door, is connected with a connecting rod connected with a rope, the rotating shaft body is arranged in the mounting block, the rotating shaft body is also provided with a latch, three accommodating grooves are arranged in the mounting block, each accommodating groove is a first accommodating groove, a second accommodating groove and a third accommodating groove, the limiting piece is used for limiting the latch in one of the accommodating grooves and is arranged at the end part of the rotating shaft body, and when the rotating shaft body rotates or translates in the mounting block, the latch can be switched into the three accommodating grooves so as to pull the isolating switch handle after the connecting rod moves; The mounting block comprises a mounting plate and a fixing block which are fixed together left and right, wherein the fixing block is close to the isolating switch handle, the accommodating groove is positioned in the fixing block, the rotating shaft body is connected to the mounting plate in a penetrating way, the fixing block is provided with a through groove for accommodating the rotating shaft body, and the through groove is communicated with the three accommodating grooves; The first accommodating groove and the second accommodating groove are respectively positioned at two opposite sides of the through groove, the first accommodating groove is close to the isolating switch handle, the first accommodating groove and the second accommodating groove penetrate through the fixed block along the axial direction of the rotating shaft body, the third accommodating groove is distributed in the fixed block along the radial direction of the rotating shaft body, the starting point of the third accommodating groove is communicated with the second accommodating groove, and the end point of the third accommodating groove is close to the first accommodating groove; The limiting piece comprises a limiting spring and a torsion spring, the limiting spring is sleeved on one side, deviating from the isolating switch handle, of the rotating shaft body and is fixed on the mounting plate, one end of the torsion spring is installed on the fixing block, the other end of the torsion spring is installed on the end, close to the connecting rod, of the rotating shaft body, the latch is located at the middle position in the first accommodating groove under the elastic force of the limiting spring and the torsion spring, when the rotating shaft body is pressed and rotated, the latch can enter the second accommodating groove and reach the middle position of the second accommodating groove after the limiting spring is reset, and when the latch is located at the middle position of the second accommodating groove, the torsion spring can drive the latch to rotate to the end position of the third accommodating groove.
  2. 2. The interlocking protection mechanism of the switch cabinet is characterized in that a lock body hole for opening and closing the cabinet door is formed in the step surface, a handle disc is arranged at the end, away from a handle of the isolating switch, of the rotating shaft body, an inserting hole is formed in the handle disc, a connecting line of the inserting hole and a latch is parallel to the axis of the rotating shaft body, and when the latch is located in the accommodating groove III, the inserting hole faces the lock body hole.
  3. 3. A switch cabinet interlocking protection mechanism according to any of claims 1-2, characterized in that a cover is detachably connected to the outer end of the outer protective shell, which end is located outside the cabinet door.
  4. 4. The interlocking protection mechanism of the switch cabinet according to claim 3, wherein the buffer spring is arranged on the rope, the universal connecting ring connected with the rope is arranged on the connecting rod, and the roller assembly limiting the moving direction of the rope is arranged in the cabinet body of the switch cabinet.
  5. 5. The switch cabinet interlock protection mechanism of claim 4 wherein the roller assembly includes a first direction roller and a second direction roller perpendicular to the first direction roller axis.
  6. 6. A switchgear cabinet comprising the interlock protection mechanism of claim 5.

Description

Switch cabinet interlocking protection mechanism and switch cabinet Technical Field The invention relates to the technical field of electrical equipment, in particular to a switch cabinet interlocking protection mechanism and a switch cabinet. Background The switch cabinet is an electrical device, and has the main functions of opening and closing, controlling and protecting electric equipment in the process of generating, transmitting, distributing and converting electric energy of a power system. The components in the switch cabinet mainly comprise a breaker, a disconnecting switch, a load switch, an operating mechanism, a transformer, various protection devices and the like. In actual operation, the switch cabinet needs to be opened and powered off, an operator can open the switch cabinet door to ensure safety, but the possibility that the electromagnetic switch is forgotten to be closed exists in actual operation, and the existing interlocking mechanism cannot enable the operator to intuitively observe the operation state of the interlocking mechanism, so that the interlocking mechanism is not easy to perceive when the interlocking mechanism fails and does not work. The chinese patent with application number CN112701604B discloses a switch cabinet protection interlocking mechanism and a metal armoured movable switch cabinet using the interlocking mechanism, which belongs to the field of electrical equipment, the interlocking mechanism comprises a plurality of grooves formed on a switch cabinet door or a door frame, and a fixing component, a sliding component and a limiting component which are mutually matched in the grooves, and meanwhile, the fixing component and the sliding component are connected to an isolating switch through rope linkage. The sliding plate is exposed outside the switch cabinet in the above patent, so that the situation of unnecessary misoperation is easy to occur, the use of the switch cabinet is affected, and certain safety risks exist. Disclosure of Invention The invention aims to solve the main technical problems by providing a switch cabinet interlocking protection mechanism and a switch cabinet, which can solve the problems mentioned in the background art. The following technical scheme is adopted to solve the main technical problems: a switchgear interlock protection mechanism comprising: the outer protective shell is arranged on the cabinet door in a penetrating way, and two ends of the outer protective shell are provided with openings; The isolating switch control mechanism comprises a rope connected with an isolating switch handle, a driving mechanism for controlling the rope to pull so as to open or close the isolating switch, wherein the isolating switch handle is arranged in a switch cabinet operation chamber; The driving mechanism comprises a mounting block, a rotating shaft body and a limiting piece, wherein the mounting block is arranged in an outer protective shell, the end part, located at the inner side of a cabinet door, of the rotating shaft body is connected with a connecting rod connected with a rope, the rotating shaft body is arranged in the mounting block, a latch is further arranged on the rotating shaft body, three accommodating grooves are formed in the mounting block, the limiting piece is used for limiting the latch in one of the accommodating grooves and is arranged at the end part of the rotating shaft body, and when the rotating shaft body rotates or translates in the mounting block, the latch can be switched into the three accommodating grooves so that the connecting rod can pull the isolating switch handle after moving. Preferably, the mounting block comprises a mounting plate and a fixing block which are fixed together left and right, the fixing block is close to the isolating switch handle, the accommodating groove is positioned in the fixing block, the rotating shaft body is connected to the mounting plate in a penetrating mode, the fixing block is provided with a through groove for accommodating the rotating shaft body, and the through groove is communicated with the three accommodating grooves. The first accommodating groove and the second accommodating groove are respectively positioned on two opposite sides of the through groove, the first accommodating groove is close to the isolating switch handle, the first accommodating groove and the second accommodating groove penetrate through the fixed block along the axial direction of the rotating shaft body, the third accommodating groove is distributed in the fixed block along the radial direction of the rotating shaft body, the starting point of the third accommodating groove is communicated with the second accommodating groove, the ending point of the third accommodating groove is close to the first accommodating groove, when the clamping tooth enters the second accommodating groove from the first accommodating groove, the connecting rod moves to pull the isolating switch handle to be opened, a