CN210245354U

CN210245354U - Five-prevention door interlocking mechanism of electric cabinet

Info

Publication number: CN210245354U
Application number: CN201921397310.6U
Authority: CN
Inventors: Huagui Su; 苏华贵; Lingxiao Li; 李凌霄
Original assignee: Shenyang Jingrui Technology Co ltd
Current assignee: Shenyang Jingrui Technology Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-04-03
Anticipated expiration: 2029-08-27

Abstract

The utility model discloses an electric cabinet body "five prevent" door interlocking device, including auxiliary switch bent plate, switch axle, the door plant and the interlocking board of opening and shutting, the one end of auxiliary switch bent plate is connected with the fixing base, the vertical ejector pin that is connected with in central authorities of fixing base, the bottom extension of ejector pin is fixed with the interlocking board, the door plant that opens and shuts is connected on the cabinet body of fixing base one end, the internal portion transverse connection of auxiliary switch bent plate top cabinet has the switch axle, and the cover is equipped with the ground switch sword on the lateral wall of switch axle, the epaxial sliding connection of ground switch sword one side switch has fan-shaped switch sword that opens and shuts. The utility model discloses an adopt simple interlocking device to open and shut the door plant to the electrical cabinet body and open and shut the locking, can effectively open and shut through the fan-shaped blade switch on-off that opens and shuts jointly fan-shaped magnetic path drive interlocking board, the use and the maintenance of the cabinet body of being convenient for have effectively avoided the phenomenon that interlocking device opened when vacuum circuit breaker is still circular telegram under the separating brake state, have improved the security of the use of the cabinet body and operation.

Description

Five-prevention door interlocking mechanism of electric cabinet

Technical Field

The utility model relates to an automatically controlled cabinet field, specificly relate to an electric cabinet body "five prevent" door interlocking mechanism.

Background

With the continuous development of power grids and the continuous updating of technologies, an electrical cabinet becomes an indispensable safety cabinet in daily life and industrial production, and an electrical cabinet is mainly used for protecting components and parts to normally work, so that the electrical cabinet has an electrical five-prevention function and becomes an important requirement for power safety production.

The five-prevention function of the existing electric cabinet is mostly to prevent that the error device is continuously improved and perfected, but still there is a vacuum circuit breaker when switching on, the machinery on the earthing knife-switch of the front and back doors of the cabinet can not complete the locking with the cabinet door, the phenomenon of mistakenly entering the electrified interval still exists, and the vacuum circuit breaker still can have the power-on phenomenon under the switching-off state, but the existing five-prevention interlocking mechanism can not lock the cabinet under the condition, therefore, the safety of the use and operation of the cabinet can not be guaranteed, and certain potential safety hazard exists.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

The to-be-solved technical problem of the utility model is to provide an electric cabinet body "five prevent" door interlocking mechanism, can effectively open and shut the locking through simple interlocking mechanism to the door plant that opens and shuts of the electric cabinet body, increase the convenience that the cabinet body used and overhauld, the phenomenon that interlocking mechanism opened when can effectively avoiding vacuum circuit breaker to be in under the separating brake state still switch on, the security of the use of the improvement cabinet body and operation.

2. Technical scheme

In order to solve the above problem, the utility model adopts the following technical scheme:

an interlocking mechanism of a five-prevention door of an electric cabinet body comprises an auxiliary switch bent plate, a switch shaft, an opening and closing door plate and an interlocking plate, wherein the auxiliary switch bent plate is fixed on the inner wall of the cabinet body, one end of the auxiliary switch bent plate is connected with a fixed seat, the center of the fixed seat is vertically and slidably connected with a mandril, the top of the mandril extends to the upper part of the fixed seat, the top of the mandril is connected with a limited block, a pressure spring is sleeved on the outer side of the mandril between the limited block and the fixed seat, two ends of the pressure spring are respectively welded and fixed with the bottom of the limited block and the top end of the fixed seat, the bottom of the mandril extends to the lower part of the fixed seat and is fixed with the interlocking plate, a locking groove is arranged on the top of the interlocking plate far away from one end of the mandril, the opening and closing door plate is connected on the, the switch is characterized in that a switch shaft is transversely connected inside the cabinet body on one side of the opening and closing door plate above the auxiliary switch bent plate, one end of the switch shaft is fixedly connected with a grounding switch wheel, a grounding switch blade is sleeved on the outer side wall of one end, close to the opening and closing door plate, of the switch shaft, a power supply gate is connected inside the cabinet body below the grounding switch blade, a fan-shaped opening and closing switch blade is connected on the outer side wall of the switch shaft on one side, far away from the opening and closing door plate, of the grounding switch blade in a sliding mode through a shaft sleeve, an electromagnetic plate is fixed on one side, far away from the grounding switch blade, of the fan-shaped opening and closing switch blade, the electromagnetic plate is electrically connected with the grounding switch blade through a lead, connecting plug rods are arranged inside the centers of the upper end and the lower end of one side, close to the electromagnetic plate, of the fan-shaped opening and closing switch blade, a fan-shaped magnetic block is sleeved on the, the inside that does not extend to 2 recesses is equallyd divide to the one end of 2 connection inserted bars, and all overlaps on the fan-shaped magnetic path of connecting the inserted bar outside and be equipped with the spring, the other end of spring all with the electromagnetic plate fixed connection in the recess outside, be fixed with the guide holder on the cabinet body inner wall of fan-shaped magnetic path and fan-shaped plug-in strip below that opens and shuts, and the inside sliding connection of guide holder has the bolt, and the bolt is established to "T" style of calligraphy structure, the top of bolt extends to the top of guide holder and is contradicted with the bottom of fan-shaped plug-in strip and be connected, and the limiting plate welded fastening at the.

Specifically, the size of the lock catch is equal to the size of the lock groove.

Specifically, the radius of the fan-shaped end of the fan-shaped opening and closing knife is 1.2 times that of the fan-shaped end of the fan-shaped magnetic block, and the fan-shaped opening and closing knife and the grounding knife are equal in size.

Specifically, the height difference between the bottom end of the grounding switch blade and the bottom end of the fan-shaped opening and closing switch blade is equal to the height difference between the bottom of the lock catch and the top end inside the lock groove.

Specifically, the electromagnetic plate is magnetically repelled from the fan-shaped magnetic block when in a power-on state, and the magnetic force between the fan-shaped magnetic block and the electromagnetic plate is greater than the resilience force of the spring.

3. Advantageous effects

(1) The utility model discloses an adopt the auxiliary switch bent plate, the switch shaft, fan-shaped magnetic path, fan-shaped switch blade that opens and shuts, the ground connection switch blade, the door plant that opens and shuts, the earthing switch wheel, the bolt, the pressure spring, the ejector pin, hasp and interlocking board, effectively drive the fan-shaped magnetic path of reverse setting through the rotation of earthing switch wheel, fan-shaped switch blade and the rotation of ground connection switch blade, linkage bolt extrusion pressure spring promotes ejector pin and interlocking board and goes up and down, thereby make hasp and interlocking board separation, the interlocking of the completion cabinet body is opened and shut the shutting, the locking of the cabinet body of being convenient for uses and opens the maintenance.

(2) The utility model discloses an adopt the axle sleeve to open and shut the plug-in strip slip suit on the switch shaft with fan-shaped, and through be provided with the recess between fan-shaped magnetic path and fan-shaped opening and shutting plug-in strip, connect the inserted bar, spring and electromagnetic plate, effectively make vacuum circuit breaker switching-on combined floodgate through rotating the switch wheel, make the circular telegram outage of electromagnetic plate, thereby make and produce repulsion force between fan-shaped magnetic path and the fan-shaped opening and shutting plug-in strip and repel each other or laminate mutually by the spring resilience force, effectively promote the lift of bolt linkage interlocking board through forming a holistic fan-shaped magnetic path and fan-shaped opening and shutting plug-in strip, interlocking device opens the phenomenon when effectively avoiding vacuum circuit breaker to be in still under the switching-on state, the security of cabinet body use and.

(3) The utility model discloses an adopt interlocking device to realize the shutting between the door plant and the cabinet body that opens and shuts, simple structure, the simple operation can not only effectively prevent the internal portion of cabinet mistake from going into electrified interval, can also guarantee that vacuum circuit breaker short-circuit state lower interlocking device still is in the shutting state, has effectively guaranteed the safe handling of the electric cabinet body, and the practicality is strong.

To sum up, the utility model provides an electric cabinet body "five prevent" door interlocking device can effectively open and shut the locking through simple interlocking device to the door plant that opens and shuts of the electric cabinet body, the simple operation, the use and the maintenance of the cabinet body of being convenient for, can effectively open and shut through fan-shaped switching knife circular telegram outage combination fan-shaped magnetic path drive interlocking plate to the phenomenon that interlocking device opened when effectively having avoided vacuum circuit breaker to be in still circular telegram under the separating brake state, the security of the use of the cabinet body and operation has been improved, the potential safety hazard is reduced.

Drawings

FIG. 1 is a schematic view of the device of the present invention in an unlocked state;

FIG. 2 is a schematic view of the enlarged side-sectional structure at A in FIG. 1 of the present invention;

fig. 3 is a schematic view of the local enlarged structure of the device of the present invention in the locked state.

Reference numerals: 1. an auxiliary switch bent plate; 2. a switch shaft; 3. a sector-shaped magnetic block; 4. a fan-shaped switch blade is opened and closed; 5. a grounding knife switch; 6. a guide seat; 7. a door panel is opened and closed; 8. a ground switch wheel; 9. a bolt; 10. a pressure spring; 11. a fixed seat; 12. a top rod; 13. locking; 14. locking the groove; 15. an interlock plate; 16. a shaft sleeve; 17. a groove; 18. connecting the inserted link; 19. a spring; 20. an electromagnetic plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: an interlocking mechanism of a five-prevention door of an electric cabinet body comprises an auxiliary switch bent plate 1, a switch shaft 2, an opening and closing door plate 7 and an interlocking plate 15, wherein the auxiliary switch bent plate 1 is fixed on the inner wall of the cabinet body, one end of the auxiliary switch bent plate 1 is connected with a fixed seat 11, the center of the fixed seat 11 is vertically and slidably connected with a mandril 12, the top of the mandril 12 extends to the upper part of the fixed seat 11, the top of the mandril 12 is connected with a limited block, a pressure spring 10 is sleeved on the outer side of the mandril 12 between the limited block and the fixed seat 11, two ends of the pressure spring 10 are respectively welded and fixed with the bottom of the limited block and the top of the fixed seat 11, the bottom of the mandril 12 extends to the lower part of the fixed seat 11 and is fixed with the interlocking plate 15, the top of the interlocking plate 15 far away from one end of the mandril 12 is provided with a, the inner wall of the opening and closing door plate 7 right above the lock groove 14 is connected with a lock catch 13, the size of the lock catch 13 is equal to that of the lock groove 14, the lock catch 13 is conveniently clamped inside the lock groove 14 after the mechanism is closed, the opening and closing door plate 7 is effectively locked, the cabinet body is conveniently locked through the locked opening and closing door plate 7, the cabinet body is convenient to use, the cabinet body on one side of the opening and closing door plate 7 above the auxiliary switch bent plate 1 is transversely connected with a switch shaft 2, one end of the switch shaft 2 is fixedly connected with a grounding switch wheel 8, a grounding switch blade 5 is sleeved on the outer side wall of one end, close to the opening and closing door plate 7, of the switch shaft 2, the inner part of the cabinet body below the grounding switch blade 5 is connected with a power supply gate, the outer side wall, far away from the opening and closing door plate 7, of the grounding switch blade 5 is slidably connected with a fan-shaped opening and closing switch blade, an electromagnetic plate 20 is electrically connected with a grounding switch blade 5 through a conducting wire, the inner parts of the centers of the upper end and the lower end of one side, close to the electromagnetic plate 20, of a fan-shaped opening and closing switch blade 4 are respectively provided with a connecting inserted bar 18, the outer side wall, close to the electromagnetic plate 20, of a switch shaft 2, of the fan-shaped opening and closing switch blade 4 is sleeved with a fan-shaped magnetic block 3, the arrangement directions of the fan-shaped magnetic block 3 and the fan-shaped opening and closing switch blade 4 are opposite to that of the grounding switch blade 5, the centers of the upper end and the lower end of one side, close to the electromagnetic plate 20, of the fan-shaped magnetic block 3 are respectively connected with the inner parts of 2 grooves 17, the fan-shaped magnetic block 3 outside the connecting inserted bar 18 is sleeved with a spring 19, the other end of the spring 19 is fixedly connected with the electromagnetic plate 20 outside the grooves 17, the electromagnetic plate 20 is magnetically repelled with the, the separation of the fan-shaped magnetic block 3 and the fan-shaped opening and closing knife switch 4 under the repulsive magnetic action is convenient under the power-on state, so that the condition that the opening and closing door plate 7 is opened under the condition that the vacuum circuit breaker is still powered on after opening is effectively avoided, the locking state of the cabinet body under the power-on state is effectively ensured, the safety of the cabinet body is improved, the guide seat 6 is fixed on the inner wall of the cabinet body below the fan-shaped magnetic block 3 and the fan-shaped opening and closing knife switch 4, the inner part of the guide seat 6 is slidably connected with the plug pin 9, the plug pin 9 is in a T-shaped structure, the top of the plug pin 9 extends to the upper part of the guide seat 6 and is in abutting connection with the bottom end of the fan-shaped opening and closing knife switch 4, the radius of the fan-shaped end of the fan-shaped opening and closing knife switch 4 is 1.2 times that of the radius of the fan-shaped end of the fan-shaped magnetic block 3, the sizes, after being convenient for vacuum circuit breaker separating brake, ground connection plug-in strip 5 and power supply gate open-off, be convenient for between electromagnetic plate 20 and the fan-shaped magnetic path 3 magnetism disappear back fan-shaped switch-on strip 4 become a whole through connecting inserted

bar

18 and 3 block of fan-shaped magnetic path under spring 19's resilience effect, be convenient for fan-shaped magnetic path 3 and fan-shaped switch-on strip 4's fan-shaped end rotate to bolt 9 directly over back, conflict and extrude bolt 9 linkage interlocking plate 15 and reciprocate through the great fan-shaped switch-on strip 4 of size, thereby control hasp 13 and locked groove 14 separation, realize opening of mechanism, be convenient for open and close opening of door plant 7, be convenient for overhaul cabinet body internal element, and the limiting plate welded fastening at the bottom of bolt 9 and ejector pin 12 top.

The working principle is as follows: when the vacuum circuit breaker is used, firstly, the grounding switch wheel 8 is rotated to drive the switch shaft 2 to rotate, so that the grounding switch blade 5 is connected with a power supply gate, the vacuum circuit breaker is in a closing and electrifying state at the moment, the electromagnetic plate 20 is electrified and generates magnetic force which is magnetically repulsive to the fan-shaped magnetic block 3, so that the spring 19 between the fan-shaped magnetic block 3 and the fan-shaped opening and closing switch blade 4 is stretched, the fan-shaped opening and closing switch blade 4 slides on the switch shaft 2 through the shaft sleeve 16 under the repulsive force and slides to the outer side of the plug 9, and then the connecting plug rod 18 is driven to be separated from the groove 17, at the moment, the fan-shaped magnetic block 3 and the fan-shaped opening and closing switch blade 4 are respectively 2 independent bodies, the fan-shaped opening and closing switch blade 4 is not in contact with the plug 9, the pressure spring 10 is restored to the initial state, so that the plug 9, the ejector rod 12, when the interior of the cabinet body needs to be overhauled, the earthing switch wheel 8 is rotated to drive the switch shaft 2 to rotate, so that the earthing switch blade 5 is separated from a power supply gate, the vacuum circuit breaker is in a switching-off power-off state at the moment, the electromagnetic plate 20 is powered off and loses magnetic force, the fan-shaped opening and closing switch blade 4 generates instantaneous sliding towards one end of the fan-shaped magnetic block 3 along the switch shaft 2 through the shaft sleeve 16 under the action of the resilience force of the spring 19, the connecting insertion rod 18 is driven to be inserted into the groove 17, so that the fan-shaped opening and closing switch blade 4 and the fan-shaped magnetic block 3 are clamped into a whole and are arranged above the plug pin 9, and simultaneously along with the rotation of the switch shaft 2, the fan-shaped opening and closing switch blade 4 with larger size is abutted against and pushes the plug pin 9 to slide downwards in the guide seat 6, the pressure spring 10 is extruded and, make hasp 13 and locked groove 14 separation, realize interlocking device's opening, be convenient for open and shut door plant 7 open, be convenient for overhaul cabinet body internal component, and when vacuum circuit breaker was in still circular telegram under the separating brake state, electromagnetic plate 20 still has magnetism, relative position was the same under the closing switch on state with vacuum circuit breaker between at this moment fan-shaped magnetic path 3 and fan-shaped switching knife 4, still divide into two solitary bodies, effectively guaranteed under the vacuum circuit breaker still circular telegram state that cabinet body switching brake damage leads to, interlocking device's shutting state, the security of cabinet body use and operation has effectively been improved, the potential safety hazard has been reduced.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The utility model provides an electric cabinet body "five prevent" door interlocking device, includes auxiliary switch bent plate (1), switch axle (2), opening and shutting door plant (7) and interlocking board (15), its characterized in that: the auxiliary switch bent plate (1) is fixed on the inner wall of a cabinet body, one end of the auxiliary switch bent plate (1) is connected with a fixed seat (11), a push rod (12) is vertically and slidably connected to the center of the fixed seat (11), the top of the push rod (12) extends to the upper side of the fixed seat (11), a limit block is connected to the top of the push rod (12), a pressure spring (10) is sleeved outside the push rod (12) between the limit block and the fixed seat (11), two ends of the pressure spring (10) are respectively welded and fixed with the bottom of the limit block and the top end of the fixed seat (11), the bottom of the push rod (12) extends to the lower side of the fixed seat (11) and is fixed with an interlocking plate (15), a locking groove (14) is formed in the top of the interlocking plate (15) far away from one end of the push rod (12), the opening and closing door plate (7) is connected to the cabinet body at one end of the fixed seat (11, and be connected with hasp (13) on the inner wall of door plant (7) that opens and shuts directly over locked groove (14), the internal portion transverse connection of cabinet of auxiliary switch bent plate (1) top door plant (7) one side has switch shaft (2), the one end and the earthing switch wheel (8) fixed connection of switch shaft (2), and the cover is equipped with earthing switch blade (5) on the lateral wall that switch shaft (2) are close to door plant (7) one end that opens and shuts, the internal connection of earthing switch blade (5) below cabinet body has power gate, earthing switch blade (5) are kept away from on the lateral wall of door plant (7) one side switch shaft (2) and are gone up fan-shaped switch blade (4) through axle sleeve (16) sliding connection, and fan-shaped switch blade (4) keep away from one side of earthing switch blade (5) and are fixed with electromagnetic plate (20), electromagnetic plate (20) are connected with earthing switch blade (5) electricity through the wire, fan-shaped switch blade (4) are close to the inside of upper and lower central authorities in electromagnetic plate (20) one An inserting rod (18), a fan-shaped magnetic block (3) is sleeved on the outer side wall of a switch shaft (2) on one side, close to an electromagnetic plate (20), of a fan-shaped opening and closing switch (4), the arrangement directions of the fan-shaped magnetic block (3) and the fan-shaped opening and closing switch (4) are opposite to that of a grounding switch (5), the centers of the upper end and the lower end of the fan-shaped magnetic block (3) on one side, close to the electromagnetic plate (20), of the fan-shaped magnetic block are connected with connecting inserting rods (18), one ends of 2 connecting inserting rods (18) are uniformly extended into the 2 grooves (17), springs (19) are sleeved on the fan-shaped magnetic block (3) on the outer side of each connecting inserting rod (18), the other ends of the springs (19) are fixedly connected with the electromagnetic plate (20) on the outer side of each groove (17), guide seats (6) are fixed on the inner wall of a cabinet body below the fan-shaped magnetic blocks (3) and the fan, bolt (9) are established to "T" style of calligraphy structure, the top of bolt (9) extends to the top of guide holder (6) and contradicts with the bottom of fan-shaped plug-in strip (4) and is connected, and the limiting plate welded fastening at the bottom of bolt (9) and ejector pin (12) top.

2. The electric cabinet body five-prevention door interlocking mechanism is characterized in that: the size of the lock catch (13) is equal to that of the lock groove (14).

3. The electric cabinet body five-prevention door interlocking mechanism is characterized in that: the radius of the fan-shaped end of the fan-shaped opening and closing knife (4) is 1.2 times that of the fan-shaped end of the fan-shaped magnetic block (3), and the fan-shaped opening and closing knife (4) and the grounding knife (5) are equal in size.

4. The electric cabinet body five-prevention door interlocking mechanism is characterized in that: the height difference between the bottom end of the grounding switch blade (5) and the bottom end of the fan-shaped switch blade (4) is equal to the height difference between the bottom of the lock catch (13) and the top end inside the lock groove (14).

5. The electric cabinet body five-prevention door interlocking mechanism is characterized in that: the electromagnetic plate (20) is magnetically repelled with the fan-shaped magnetic block (3) in the electrified state, and the magnetic force between the fan-shaped magnetic block (3) and the electromagnetic plate (20) is larger than the resilience force of the spring (19).