CN112701604B

CN112701604B - Switch cabinet protection interlocking mechanism and metal armored movable switch cabinet

Info

Publication number: CN112701604B
Application number: CN202011421306.6A
Authority: CN
Inventors: 徐峰; 梁意珍; 徐顺山
Original assignee: Huiwang Electric Co ltd
Current assignee: Huiwang Electric Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2022-07-12
Anticipated expiration: 2040-12-08
Also published as: CN112701604A

Abstract

The invention discloses a switch cabinet protection interlocking mechanism and a metal armored movable switch cabinet using the same, belonging to the field of electrical equipment, wherein the interlocking mechanism comprises a plurality of grooves arranged on a switch cabinet door or a door frame, and a fixed component, a sliding component and a limiting component which are arranged in the grooves and matched with each other, and the fixed component and the sliding component are connected to an isolating switch in a linkage manner through a rope, so that the isolating switch is firstly switched off before the cabinet door is opened, the isolating switch is automatically switched on when the cabinet door is closed, an operator does not need to additionally operate the isolating switch, and the operation safety of the switch cabinet is improved; meanwhile, the stroke of the sliding plate is adjusted, and an operator can feel the control state of the isolating switch through the change of resistance, so that the aim of indirectly controlling the isolating switch is fulfilled, and the switch cabinet has better operation safety and more flexible operation mode.

Description

Switch cabinet protection interlocking mechanism and metal armored movable switch cabinet

Technical Field

The invention belongs to the field of electrical equipment, and particularly relates to a switch cabinet protection interlocking mechanism and a metal armored removable switch cabinet using the same.

Background

The metal armored movable switch cabinet is a form of the switch cabinet, and is characterized in that: a plurality of compartments such as a bus chamber, a breaker chamber, a cable chamber, a secondary relay protection chamber and an operation chamber of the switch cabinet are relatively and independently separated, and a handcart type switch is assembled in the switch compartment. The upper outgoing line and the lower outgoing line are the cable incoming and outgoing mode of the switch cabinet. For the metal armored movable switch cabinet, the cables can be fed upwards and downwards, and the depth of the cabinet which is generally fed upwards and downwards is about 1600 mm. The armor is to add a layer of metal protection on the outermost surface of the product so as to prevent the inner utility layer from being damaged during transportation and installation.

The metal armored movable switch cabinet produced in the current market comprises a lower door, a middle door and an instrument door from bottom to top, wherein an operation chamber is arranged in a cabinet after the middle door is opened, an operation handle of an isolating switch is arranged in the operation chamber, an operation rod is driven by a pulling operation handle to rotate, and the operation rod drives the isolating switch hinged on the operation rod to be switched on or switched off. However, after the middle door is opened, the left side of the middle door is a primary chamber which is electrified, so that an operator can accidentally execute an operating handle in the operating chamber to have a conductive danger. In order to ensure safety, the electromagnetic switch of the primary chamber is closed first, and then the operation handle is operated. However, in actual operation, an operator still has the possibility of forgetting to close the electromagnetic switch of the chamber once, so that the potential safety hazard exists in the operation of opening the middle door. And the existing interlocking mechanism has a single use mode, cannot be flexibly used due to actual conditions, and reduces the use experience.

Disclosure of Invention

Based on the problems in the prior art, the invention provides a switch cabinet protection interlocking mechanism which comprises a first groove and a second groove which are respectively arranged on two rotating doors of a switch cabinet which are mutually matched or on the rotating doors and a door frame, wherein a third groove and two fourth grooves are also formed in the rotating doors where the second grooves are arranged, the two fourth grooves are respectively positioned on the upper side and the lower side of the second groove, and the third groove is positioned on one side, close to the outside of the door, of the second groove;

a fixing component is arranged in the second groove and is popped out of the first groove through a spring and locks the two rotating doors; a sliding component is arranged in the first groove, a sliding plate is arranged on one side of the sliding component, and the sliding of the sliding plate pushes the fixing component to return to the second groove and releases the locking of the rotating door; a limiting component is arranged in the fourth groove and limits the fixed component to be ejected out of the first groove, one end of the sliding plate, far away from the second groove, is connected to an isolating switch handle in the switch cabinet operating chamber through a rope, and the isolating switch handle is pulled to be opened; the fixing component is connected to an isolating switch handle in the switch cabinet operating chamber through a rope at one end far away from the first groove, and the isolating switch handle is pulled to be switched on;

two channels have been seted up to one side of third recess, the inside sliding fit of channel has the slip post, the fixed plate is installed to one side of slip post, the connecting block is installed to the opposite side of slip post, the slope notch has all been seted up to the opposite face of two fixed plates, sliding fit has three hornblocks between two slope notches, the connecting block is connected with spacing subassembly, the fixed plate on the removal oppression both sides of three hornblocks drives the slip post and removes to both sides, the slip post drives spacing subassembly and keeps away from each other and removes the restriction of popping out to fixed subassembly.

Wherein, the sliding assembly includes: the connecting plate is installed to the one end of first spring, and the connecting plate is connected with the sliding plate, and the other end of first spring is connected with first recess inner wall, the connecting plate keep away from the sliding plate one side be connected with the rope.

Wherein, fixed subassembly include: one end of the second spring is provided with a locking block used for popping out of the first groove, the other end of the second spring is connected with the inner wall of the second groove, and the locking block is provided with a limiting hole matched with the limiting component; one side of the locking block, which is far away from the first groove, is connected with the rope.

Wherein, spacing subassembly include: a baffle is arranged at one end of the third spring, a limiting block matched with the limiting hole is arranged at one side of the baffle, a connecting rod is arranged at the other side of the baffle, the third spring is sleeved on the peripheral side of the connecting rod, and the other end of the third spring is connected with the inner wall of the fourth groove; the innermost side of the fourth groove is provided with a fifth groove, the connecting block is in sliding fit in the fifth groove, and the connecting block is connected with the connecting rod.

The cable extends out of the locking block or the connecting plate and then is connected to the elastic buffer part and then is connected to the disconnecting switch handle.

Wherein, a plurality of reversing wheels for changing the moving direction of the rope are arranged on the rope.

The handle is arranged on one side, close to the outside of the door, of the sliding plate, the clamping hook is arranged on one side, close to the inside of the switch cabinet, the clamping groove matched with the clamping hook is formed in the first groove, and the clamping groove is located on the inner wall of the first groove corresponding to the position of the sliding plate when the isolating switch handle is opened.

Wherein, the side of the triangle block close to the outside of the door is provided with a press handle protruding out of the rotary door.

A metal armored movable switch cabinet comprises the switch cabinet protection interlocking mechanism and a box body, wherein an opening is formed in one side of the box body, a first rotating door and a second rotating door are respectively matched with the two sides of the opening in a rotating mode, and a first groove is formed in the first rotating door; the second rotating door is internally provided with a second groove, the second rotating door is internally provided with a third groove and two fourth grooves, and the box body is internally provided with an operating room.

The embodiment of the invention has the following beneficial effects:

1. spacing subassembly through setting up, fixed subassembly and sliding assembly three cooperate mutually, when needs close the cubical switchboard, remove the spacing to fixed subassembly through spacing subassembly, thereby can lock and close the cubical switchboard, sliding assembly's connecting plate and fixed subassembly's locking piece are connected to isolator through the rope simultaneously, reach and carry out the separating brake outage to isolator earlier through the rope when opening the cabinet door, avoid appearing the incident, switch-on circular telegram is closed to isolator through the rope when closing the cabinet door, resume normally.

2. The inclined notch can be used as a transmission part, and the triangular block can be prevented from sliding out of the inclined notch, so that the stability of the device is improved.

3. By adjusting the stroke of the sliding plate, the sliding of the sliding plate firstly carries out the opening operation of the isolating switch and then carries out the unlocking operation of the switch cabinet, so that the built-in program of the switch cabinet can be reset without opening the cabinet door or by disconnecting the isolating switch to cut off the power while the safety is ensured, and the operation is more convenient; and the setting of the elastic buffer part on the rope enables the sliding resistance of the sliding plate to have a grading condition, the resistance received when the isolating switch is switched off is smaller than the resistance received when the interlocking is released, and an operator can judge whether to switch off or not by sensing the stress condition, so that the operation is more flexible.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic plan view of a switch cabinet protection interlocking mechanism;

fig. 2 is a schematic structural view of a front cross section of a protection interlocking mechanism of a switch cabinet;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic side cross-sectional view of a third recess of a switchgear protection interlock mechanism;

FIG. 5 is an enlarged view of the structure at B in FIG. 4;

fig. 6 is an enlarged cross-sectional perspective view of a first groove of a switch cabinet protection interlocking mechanism;

fig. 7 is a schematic structural diagram of a metal-clad withdrawable switchgear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

In order to keep the following description of the embodiments of the invention clear and concise, a detailed description of known functions and known parts of the invention is omitted.

The first embodiment is as follows:

referring to fig. 1 to 6, in the present embodiment, a switch cabinet protection interlocking mechanism is provided, including a first groove 6 and a second groove 7 respectively disposed on two mutually matched rotating doors of a switch cabinet, a third groove 16 and two fourth grooves 12 are further disposed on the rotating door where the second groove 7 is located, the two fourth grooves 12 are respectively disposed on the upper side and the lower side of the second groove 7, and the third groove 16 is disposed on the side of the second groove 7 that is close to the outside of the door;

the internally mounted of second recess 7 have fixed subassembly, fixed subassembly include: a locking block 11 used for popping up to the first groove 6 is installed at one end of the second spring 10, the other end of the second spring 10 is connected with the inner wall of the second groove 7, a limiting hole 27 matched with the limiting component is formed in the locking block 11, and the fixing component pops up the locking block 11 into the first groove 6 through the spring and locks the two rotating doors; one side of the locking block 11, which is far away from the first groove 6, is connected with a rope 25; the internally mounted of first recess 6 have a sliding assembly, sliding assembly include: the sliding door locking device comprises a first spring 8, wherein one end of the first spring 8 is provided with a connecting plate 9, the other end of the connecting plate 9 is connected with a sliding plate 5, the other end of the first spring 8 is connected with the inner wall of a first groove 6, one side, far away from the sliding plate 5, of the connecting plate 9 is connected with a rope 25, and the sliding plate 5 moves to push a locking block 11 of a fixed component to return to a second groove 7 and release the locking of the rotating door; fourth recess 12 internally mounted have spacing subassembly, spacing subassembly include: a baffle plate 23 is arranged at one end of the third spring 13, a limiting block 15 matched with the limiting hole 27 is arranged at one side of the baffle plate 23, a connecting rod 14 is arranged at the other side of the baffle plate 23, the third spring 13 is sleeved on the periphery of the connecting rod 14, and the other end of the third spring 13 is connected with the inner wall of the fourth groove 12; the innermost side of the fourth groove 12 is provided with a fifth groove 17, the connecting block 24 is in sliding fit in the fifth groove 17, the connecting block 24 is connected with the connecting rod 14, the limiting block 15 of the limiting component extends into the limiting hole 27 to limit the fixed component to be ejected out of the first groove 6, one end of the sliding plate 5, which is far away from the second groove 7, is connected to an isolating switch handle 26 in the switch cabinet operating chamber through a rope 25, and the isolating switch handle 26 is pulled to be switched off; the fixing component is connected to an isolating switch handle 26 positioned in an operating room of the switch cabinet at one end far away from the first groove 6 through a rope 25, and the isolating switch handle 26 is pulled to be switched on;

two channels 18 have been seted up to one side of third recess 16, the inside sliding fit of channel 18 has sliding column 19, fixed plate 20 is installed to one side of sliding column 19, connecting block 24 is installed to the opposite side of sliding column 19, slope notch 21 has all been seted up to the opposite face of two fixed plates 20, sliding fit has three hornblocks 22 between two slope notches 21, connecting block 24 is connected with spacing subassembly, the fixed plate 20 of two sides is oppressed in the removal of three hornblocks 22 drives sliding column 19 and removes to both sides, sliding column 19 drives spacing subassembly and keeps away from each other and removes the pop-up restriction to fixed subassembly.

In a preferred embodiment, the cable 25 extends from the lock block 11 or the connecting plate 9, is connected to the elastic buffer part 28 and then is connected to the disconnecting switch handle 26; the cable 25 is provided with a plurality of reversing wheels 29 for changing the moving direction of the cable 25.

In a preferred embodiment, a handle is arranged on one side of the sliding plate 5, which is close to the outside of the door, a hook 30 is arranged on one side of the sliding plate, which is close to the inside of the switch cabinet, a clamping groove 31 matched with the hook 30 is arranged on the first groove 6, and the clamping groove 31 is positioned on the inner wall of the first groove 6, which corresponds to the position of the sliding plate 5 when the isolating switch handle 26 is opened.

In a preferred embodiment, a pressing handle 4 protruding out of the rotating door is installed on one side of the triangular block 22 close to the outside of the door.

Example two:

referring to fig. 1 to 7, in the present embodiment, a metal armored removable switch cabinet is provided, which includes a switch cabinet protection interlocking mechanism and a box body 1 according to the first embodiment, an opening is provided on one side of the box body 1, a first rotating door 2 and a second rotating door 3 are respectively rotatably fitted on two sides of the opening, and a first groove 6 is provided inside the first rotating door 2; the second rotating door 3 is internally provided with a second groove 7, the second rotating door 3 is internally provided with a third groove 16 and two fourth grooves 12, and the box body 1 is internally provided with an operating room.

When the switch cabinet needs to be closed, the first rotating door 2 is firstly rotated, the second rotating door 3 is rotated to a proper position, then the press handle 4 is pressed, the press handle 4 drives the two fixing plates 20 to move towards two sides through the triangular block 22, the fixing plates 20 drive the connecting block 24 to move through the sliding column 19, the connecting block 24 removes the limit of the locking block 11 through the stretching limit component, the locking block 11 slides into the first groove 6, so that the first rotating door 2 is limited, the closing of the switch cabinet is completed, when the switch cabinet needs to be opened, similarly, the sliding plate 5 is pushed, the sliding plate 5 drives the locking block 11 to slide into the second groove 7, and the limit component limits the locking block 11 again, so that the switch cabinet is opened.

Because the lock block 11 and the connecting plate 9 are both connected with the cable 25, the cable 25 is connected to the isolating switch handle 26 from both ends, when the switch cabinet is opened, the sliding plate 5 slides to drive the isolating switch handle 26 through the cable 25 and enable the isolating switch to be in an open state, at the moment, the sliding plate 5 pushes the lock block 11 to slide into the second groove 7, the cabinet door can be opened after unlocking, at the moment, the sliding plate 5 is clamped in the first groove 6 through the matching of the clamping hook 30 and the clamping groove 31 to keep the isolating switch open, and at the moment, the operation in the switch cabinet is safer; when the cabinet door is closed, the cooperation between the hook 30 and the clamping groove 31 is firstly released, the sliding of the locking block 11 locks the cabinet door after the limit of the limit component is released, and meanwhile, the cable 25 drives the isolating switch handle 26 to enable the isolating switch to be in a closing state, and the switch cabinet is restarted.

When only needing to close isolator reset switch cabinet, only need manual drive sliding plate 5 to drive isolator handle 26, because the setting of elastic buffer portion 28, when isolator handle 26 removed to the greatest extent, elastic buffer portion 28 need be elongated in the continuation removal of sliding plate 5 and the jump of resistance appears, operating personnel can know that isolator has been in the state of opening the floodgate this moment, can carry out the joint locking or release with sliding plate 5 as required this moment, because the other end of rope also is provided with elastic buffer portion 28, so isolator handle 26 resets under the effect of the elasticity that resets, the state of returning again, thereby accomplish and switch off the floodgate and reset to the cubical switchboard under the prerequisite of not opening the cabinet door.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Claims

1. A protection interlocking mechanism of a switch cabinet is characterized by comprising a first groove (6) and a second groove (7) which are respectively arranged on two rotating doors matched with each other or on the rotating doors and a door frame of the switch cabinet, wherein the rotating door where the second groove (7) is arranged is also provided with a third groove (16) and two fourth grooves (12), the two fourth grooves (12) are respectively positioned on the upper side and the lower side of the second groove (7), and the third groove (16) is positioned on one side, close to the outside of the door, of the second groove (7);

a fixing component is arranged in the second groove (7), and the fixing component is ejected into the first groove (6) through a spring and locks the two rotating doors; a sliding component is arranged in the first groove (6), a sliding plate (5) is arranged on one side of the sliding component, and the sliding of the sliding plate (5) pushes the fixing component to return to the second groove (7) and releases the locking of the rotating door; a limiting component is arranged in the fourth groove (12), the limiting component limits the fixed component to be popped out to the first groove (6), one end, far away from the second groove (7), of the sliding plate (5) is connected to an isolating switch handle (26) located in an operating room of the switch cabinet through a rope (25), and the isolating switch handle (26) is pulled to be switched off; one end of the fixing component, which is far away from the first groove (6), is connected to an isolating switch handle (26) in an operating room of the switch cabinet through a rope (25), and the isolating switch handle (26) is pulled to be switched on;

two channels (18) are formed in one side of the third groove (16), sliding columns (19) are arranged in the channels (18) in a sliding fit mode, fixing plates (20) are installed on one sides of the sliding columns (19), connecting blocks (24) are installed on the other sides of the sliding columns (19), inclined notches (21) are formed in opposite surfaces of the two fixing plates (20), triangular blocks (22) are arranged between the two inclined notches (21) in a sliding fit mode, the connecting blocks (24) are connected with limiting assemblies, the fixing plates (20) on two sides are pressed by the movement of the triangular blocks (22) to drive the sliding columns (19) to move towards two sides, the sliding columns (19) drive the limiting assemblies to be away from each other, and pop-up limitation on the fixing assemblies is removed;

the sliding assembly comprises: one end of the first spring (8) is provided with a connecting plate (9), the connecting plate (9) is connected with the sliding plate (5), the other end of the first spring (8) is connected with the inner wall of the first groove (6), and one side, far away from the sliding plate (5), of the connecting plate (9) is connected with the rope (25);

the fixed subassembly include: one end of the second spring (10) is provided with a locking block (11) used for popping to the first groove (6), the other end of the second spring (10) is connected with the inner wall of the second groove (7), and the locking block (11) is provided with a limiting hole (27) matched with the limiting component; one side of the locking block (11) far away from the first groove (6) is connected with the rope (25);

spacing subassembly include: a baffle plate (23) is installed at one end of the third spring (13), a limiting block (15) matched with the limiting hole (27) is installed at one side of the baffle plate (23), a connecting rod (14) is installed at the other side of the baffle plate (23), the third spring (13) is sleeved on the periphery of the connecting rod (14), and the other end of the third spring (13) is connected with the inner wall of the fourth groove (12); the innermost side of the fourth groove (12) is provided with a fifth groove (17), the connecting block (24) is in sliding fit in the fifth groove (17), and the connecting block (24) is connected with the connecting rod (14).

2. A switch cabinet protective interlock according to claim 1 wherein the cable (25) extends from the lock block (11) or the connecting plate (9) and is connected to the resilient buffer (28) and then to the disconnector handle (26).

3. A switch cabinet protection and interlocking mechanism according to claim 2, characterized in that the cable (25) is provided with a plurality of reversing wheels (29) for changing the direction of movement of the cable (25).

4. A protection and interlocking mechanism for switch cabinets according to claim 3, characterized in that the sliding plate (5) has a handle at the side facing the outside of the door, and a hook (30) at the side facing the inside of the switch cabinet, the first groove (6) has a slot (31) matching with the hook (30), and the slot (31) is located on the inner wall of the first groove (6) corresponding to the position of the sliding plate (5) when the isolating switch handle (26) is opened.

5. A protective and interlocking mechanism for a switch cabinet as claimed in claim 4, characterised in that the side of the triangular block (22) facing outwards of the door is provided with a push handle (4) projecting outwards of the swing door.

6. A metal armored movable type switch cabinet is characterized by comprising a switch cabinet protection interlocking mechanism and a box body (1) according to any one of claims 1-5, wherein one side of the box body (1) is provided with an opening, a first rotating door (2) and a second rotating door (3) are respectively matched with the two sides of the opening in a rotating mode, and a first groove (6) is formed in the first rotating door (2); the inside second recess (7) that is equipped with of second revolving door (3), third recess (16), two fourth recesses (12) have been seted up to the inside of second revolving door (3), box (1) in be provided with the control chamber.