CN212676191U

CN212676191U - Mechanical interlocking device of circuit breaker and circuit breaker device

Info

Publication number: CN212676191U
Application number: CN202021619098.6U
Authority: CN
Inventors: 葛伟骏
Original assignee: Shanghai Chint Intelligent Technology Co Ltd
Current assignee: Shanghai Chint Intelligent Technology Co Ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-03-09
Anticipated expiration: 2030-08-06

Abstract

The utility model provides a mechanical interlocking device and circuit breaker device of circuit breaker, mechanical interlocking device fixed mounting is between circuit breaker device's two sets of circuit breaker sides for realize the mechanical interlocking of two sets of circuit breakers, including shell and the portable sliding closure that sets up on the shell, be equipped with rotatable knob on the sliding closure, the knob drives the sliding closure and removes the circuit breaker handle that blocks wherein arbitrary a set of circuit breaker and removes to the closing position, and dodges the circuit breaker handle of another set of circuit breaker, and at this moment, the knob can rotate to spacing with the shell locking, blocks the sliding closure and removes.

Description

Mechanical interlocking device of circuit breaker and circuit breaker device

Technical Field

The utility model relates to a low-voltage apparatus field especially relates to a mechanical interlocking device and circuit breaker device of circuit breaker.

Background

In a low-voltage power distribution system, two power supplies are used for supplying power in a plurality of important power supply occasions, wherein one power supply is a main power supply, and the other power supply is a standby power supply. When the power distribution system operates, only one of the two power supplies can be used for supplying power, if the two power supplies are supplied simultaneously, the voltage of the electric equipment and the voltage of the power grid are abnormal, the equipment operation and the power grid safety are seriously influenced, and the power utilization accident is caused, so that only one power supply input in the two power supplies is ensured in a mechanical interlocking or electrical interlocking mode.

The existing mechanical interlocking device is usually vertically pressed on a breaker of one power supply to block the closing of an operating handle, but the pressing force is not reliable and is slightly loosened, so that the pressing force is failed.

In addition, the existing mechanical interlocking device for the circuit breaker is usually arranged on a TH35-7.5 mounting rail or the side surface of the circuit breaker, and the problems of inconvenient installation and insecure installation exist in the installation process of a user.

In addition, current mechanical interlocking device uses the sheet metal component to make usually, and the operating handle of operation circuit breaker carries out the in-process of closing the separating brake, and the easy burr fish tail of sheet metal component fracture face of hand, and metal parts easily electrically conducts moreover, has electric hidden danger.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a mechanical interlock device for realizing two sets of miniature circuit breaker mechanical interlocking's circuit breaker.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a mechanical interlocking device of circuit breaker for realize the mechanical interlocking of two sets of circuit breakers, including shell and the portable sliding closure that sets up on the shell, be equipped with rotatable knob on the sliding closure, the knob drives the sliding closure and removes the circuit breaker handle that blocks wherein arbitrary a set of circuit breaker and to the position removal of closing the floodgate, and dodges the circuit breaker handle of another set of circuit breaker, and at this moment, the knob can rotate to spacing with the shell locking, blocks the sliding closure and removes.

Preferably, two positions on the shell, which correspond to the sliding covers and block the circuit breaker handles of the two sets of circuit breakers, are respectively provided with a knob clamping groove and/or a knob buckle, and the knob is correspondingly provided with a limit buckle and/or a limit groove.

Preferably, the shell is provided with two parallel guide rails with two staggered ends, and one ends of the two guide rails are respectively positioned on the side surface of the other guide rail at intervals to form a blocking opening; the rotary knob is provided with two locking mechanisms corresponding to the guide rails respectively, the sliding cover drives the rotary knob to move to the blocking opening at one end and then blocks the circuit breaker handle of one group of circuit breakers, and the rotary knob can drive the corresponding locking mechanisms to rotate to the blocking opening and limit the circuit breakers with the guide rails.

Preferably, two locking mechanical system respectively including stop piece and retaining member, stop the piece and can rotate to stopping that the mouth is spacing with a guide rail under the knob drive, the knob can drive the retaining member simultaneously and rotate to spacing with another guide rail, make locking mechanical system by spacing between two guide rails.

Preferably, the two guide rails are far away from the other ends of the blocking openings and protrude towards the other guide rail to form a locking boss, one ends of the two guide rails forming the blocking openings incline towards the other guide rail to form blocking surfaces opposite to the locking boss, and the blocking piece and the locking piece are limited between the blocking surfaces and the locking boss.

Preferably, the knob includes the carousel and sets up the swing handle in carousel one side, two sets of locking mechanical system centrosymmetry set up the opposite side at the carousel, two sets of locking mechanical system's retaining member sets up at the carousel middle part, two sets of locking mechanical system's the piece that stops separate respective retaining member setting at the edge of carousel respectively, the knob rotates when the shell locking is spacing, the lateral surface and a guide rail one end that stop are spacing, the retaining member is spacing with another guide rail one end towards the side of retaining member, when the knob moves along with the sliding closure, two locking mechanical system stop piece and retaining member respectively with the both sides sliding fit who corresponds the guide rail.

Preferably, the housing, the sliding cover and the knob are respectively formed by injection molding.

Preferably, the shell includes with circuit breaker casing one side cooperation fixed connection curb plate to and with the perpendicular roof of being connected of curb plate top one end, the roof sets up the one side at the circuit breaker handle, the curb plate is connected with circuit breaker casing buckle, be equipped with on the roof with sliding closure complex guiding mechanism, the sliding closure include with guiding mechanism complex sliding part, and set up the block portion in the sliding part side, the knob sets up on the sliding part, the sliding part can drive the position that the block portion removed to the circuit breaker handle and block circuit breaker handle combined floodgate.

Preferably, the guide mechanism comprises two sliding plates which are oppositely arranged, sliding grooves are respectively formed in one sides, close to each other, of the two sliding plates, and two limiting buckles which are limited to be in sliding fit in the sliding grooves are arranged on the sliding portion.

Preferably, the rotary knob comprises a rotary table, and a rotary handle and a locking mechanism which are respectively arranged on two sides of the rotary table, the rotary table comprises a rotary table connected with the rotary handle and steps arranged on the outer side of the rotary table, a step groove matched with the steps is arranged on the sliding cover, a rotary table hole matched with the rotary table is arranged in the step groove, the two rotary handle holes are oppositely arranged on two sides of the rotary table hole and communicated with the rotary table hole, and the inner diameter of the rotary table hole is larger than the outer diameter of the rotary table and smaller than the outer diameter of the steps; the rotating handle penetrates through the sliding cover from the rotating handle hole, so that the rotating table is inserted into the rotating table hole to rotate, and meanwhile, the step is limited on the other side, opposite to the rotating handle, of the sliding cover by the step groove.

Preferably, the sliding cover is provided with a positioning boss in limit fit with the side face of the rotating handle, and the positioning boss blocks the rotating knob at a position for unlocking the rotating knob with the shell; and/or the sliding cover is provided with a positioning convex point matched with the rotating handle, the rotating handle is provided with a positioning groove matched with the positioning convex point, and the positioning groove is sleeved on the positioning convex point when the knob rotates to the locking limit of the shell.

Preferably, the bottom of the side plate is provided with two oppositely arranged clamping plates, the inner sides of the two clamping plates are respectively provided with an installation buckle, the circuit breaker shell is limited between the two clamping plates along the two ends in the length direction, and the two ends in the length direction of the circuit breaker shell are respectively provided with a buckle groove matched with the installation buckle.

Preferably, the circuit breaker casing becomes "protruding" font structure, and the middle part of circuit breaker casing is equipped with the last cavity that is used for holding the circuit breaker handle, and the circuit breaker casing corresponds and is equipped with the side cavity that is used for holding binding post respectively at both ends of last cavity below, forms the casing recess between the side cavity top surface at last cavity and both ends respectively, the bottom of curb plate is equipped with and inserts in the casing recess with the spacing complex support boss of circuit breaker casing.

Preferably, the locking parts of the two groups of locking mechanisms are respectively provided with a locking sliding surface along one side of the circumferential direction of the turntable, locking inclined surfaces are respectively arranged along the other side of the circumferential direction of the turntable, and the locking sliding surfaces of the two locking parts are parallel to each other and are respectively perpendicular to the rotating handle; the included angle between the locking sliding surface and the locking inclined surface of the locking piece is an acute angle or 5-15 degrees; the blocking sliding surfaces of the two blocking pieces are parallel to each other and are respectively perpendicular to the rotating handle; the guide rail is provided with a blocking surface matched with the blocking limiting surface, and the blocking surface and the blocking limiting surface both form a cambered surface structure.

The utility model discloses a mechanical interlocking device of circuit breaker, be used for blockking the sliding closure that the circuit breaker handle combined floodgate including shell and portable setting on the shell, be equipped with rotatable knob on the sliding closure, the knob can drive the sliding closure and remove the circuit breaker handle that blocks a set of circuit breaker and close floodgate, and the knob can rotate to spacing with the shell locking, blocks the sliding closure and removes, and another set of circuit breaker can normally divide-shut brake this moment. When another group of circuit breakers are in the opening position, the knob can drive the sliding cover to move to block the circuit breaker handle of another group of circuit breakers to be switched on, and the knob can also rotate to be locked with the shell to be limited at the moment to block the sliding cover to move. When the knob and the shell are locked and limited, the knob can block the sliding cover from moving in the moving direction of the sliding cover, and the sliding cover is prevented from moving away to lose the effect of blocking the breaker handle. In addition, the two guide rails arranged in a staggered mode are respectively matched with the two locking mechanisms, blocking openings can be directly formed at the two ends of the guide rails respectively without being independently arranged, the knob can be screwed into the blocking openings for limiting when the sliding cover moves to the circuit breaker on any side, the guide rails simultaneously play a role in guiding and limiting, and the sliding-type circuit breaker has the advantages of being simple in structure and convenient to process.

The utility model also provides a circuit breaker device, include the mechanical interlocking device and two sets of circuit breaker, mechanical interlocking device fixed mounting is between the side of two sets of circuit breakers, and mechanical interlocking device's sliding closure setting is equipped with the one end of circuit breaker handle at two sets of circuit breakers. Two sets of circuit breakers can be used for inserting common power supply and stand-by power supply respectively, and when a set of circuit breaker closed, the circuit breaker handle of another set of circuit breaker was spacing to mechanical interlock, made two sets of circuit breakers can not closed simultaneously.

Drawings

Fig. 1 shows the position of the slide cover locking the right-side circuit breaker according to the embodiment of the present invention;

fig. 2 shows the position of the slide cover locking the left-side circuit breaker according to the embodiment of the present invention;

fig. 3 is a schematic view illustrating the assembly of the housing and the circuit breaker housing according to the embodiment of the present invention;

FIG. 4 is a schematic view of the assembly of the housing, the knob and the sliding cover according to the embodiment of the present invention;

FIG. 5 is a schematic view of the guide rail and the knob for limiting the position of the guide rail and the knob according to the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a housing according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a knob according to an embodiment of the present invention;

FIG. 8 is a schematic view of a locking mechanism according to an embodiment of the present invention;

FIG. 9 is a schematic view of the other side of the locking mechanism of the embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a sliding cover according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of the other side of the sliding cover according to the embodiment of the present invention.

Detailed Description

The following describes a mechanical interlock device of a circuit breaker according to an embodiment of the present invention with reference to fig. 1 to 11. The mechanical interlock device of the circuit breaker of the present invention is not limited to the description of the following embodiments.

As shown in fig. 1-5, a mechanical interlocking device of a circuit breaker, which is used for realizing mechanical interlocking of two sets of circuit breakers, includes a housing 100 and a sliding cover 200 movably disposed on the housing 100, and is characterized in that: the sliding cover 200 is provided with a rotatable knob 300, the knob 300 drives the sliding cover 200 to move to the breaker handle 500 which blocks any one group of circuit breakers and moves to the switching-on position, and the breaker handle 500 of the other group of circuit breakers is avoided, at the moment, the knob 300 can rotate to be locked with the shell 100 for limitation, and the sliding cover 200 is blocked from moving.

The utility model discloses a mechanical interlocking device of circuit breaker is applicable to miniature circuit breaker for realize the mechanical interlocking of two sets of circuit breakers, be used for blockking the sliding closure 200 that circuit breaker handle 500 closed a floodgate on shell 100 including shell 100 and portable setting, be equipped with rotatable knob 300 on the sliding closure 200, knob 300 can drive sliding closure 200 and remove the circuit breaker handle 500 that blocks a set of circuit breaker and close a floodgate, and knob 300 can rotate to spacing with shell 100 locking, and it removes to block sliding closure 200, and another group's circuit breaker can normally divide-shut brake this moment. When another group of circuit breakers are in the opening position, the knob 300 can drive the sliding cover 200 to move to block the circuit breaker handle 500 of the other group of circuit breakers to be switched on, and at the moment, the knob 300 can also rotate to be locked with the shell 100 for limiting, so that the sliding cover 200 is blocked from moving. When the knob 300 is locked with the housing 100 for limiting, the knob 300 can block the sliding cover 200 from moving from the moving direction of the sliding cover 200, and prevent the sliding cover 200 from moving away and losing the function of blocking the breaker handle 500.

As shown in fig. 1-2, a circuit breaker apparatus includes two sets of circuit breakers, a mechanical interlock apparatus of the present invention is installed between the two sets of circuit breakers, a housing 100 is fixed between the sides of the two sets of circuit breakers, a sliding cover 200 and a knob 300 are disposed at one end of the two sets of circuit breakers where a circuit breaker handle 500 is disposed, the sliding cover 200 can move left and right in the direction shown in the drawing, in fig. 1, the sliding cover 200 slides to the right side to avoid the circuit breaker handle 500 of the left set of circuit breakers, and to limit the circuit breaker handle 500 of the right set of circuit breakers so that the right set of circuit breakers cannot be switched on, in fig. 2, after the left set of circuit breakers is at a switching-off position, the sliding cover 200 can slide to the left side to avoid the circuit breaker handle 500. The knob 300 is used for locking and unlocking the sliding cover 200, when the sliding cover 200 moves to the leftmost side or the rightmost side, the knob 300 can rotate to a locking position and an unlocking position for locking and unlocking the sliding cover 200, when the knob 300 rotates to the locking position as shown in fig. 1 and 2, the sliding cover 200 is limited so that the sliding cover 200 cannot slide to a group of circuit breakers locked correspondingly, and when the knob 300 rotates to the unlocking position as shown in fig. 3, the sliding cover 200 can slide left and right. The two sets of circuit breakers of this embodiment each comprise a two pole circuit breaker unit. Of course, each group of circuit breakers may only include one or three and above circuit breaker units, all belonging to the protection scope of the present invention. Two sets of circuit breakers can be used for inserting common power supply and stand-by power supply respectively, and when a set of circuit breaker closed, the circuit breaker handle 500 of another set of circuit breaker of mechanical interlock device spacing made two sets of circuit breakers can not close simultaneously.

Referring to fig. 4, the housing 100 includes a side plate 110 and a top plate 120 vertically connected to one end of the top of the side plate 110, the side plate 110 is used to be fixedly connected to one side of the circuit breaker case 600, and the top plate 120 is used to mount the sliding cover 200 and the knob 300. Specifically, the case 100 includes a side plate 110 parallel to the length direction of the circuit breaker case 600 and a top plate 120 parallel to the thickness direction of the circuit breaker case 600, the top plate 120 is disposed on one side of the circuit breaker handle 500 and connected to the top of the side plate 110, and two ends of the bottom of the side plate 110 are connected to the circuit breaker case 600 respectively.

As shown in fig. 3-4, the housing 100 is snap-fit to the circuit breaker housing 600. Breaker housing 600 becomes "protruding" font, and breaker housing 600's middle part is equipped with the last cavity 610 that is used for holding circuit breaker handle 500, and breaker housing 600 corresponds and is equipped with the side cavity 620 that is used for holding binding post respectively at the both ends of last cavity 610 below, forms casing recess 630 between the side cavity 620 top surface at last cavity 610 and both ends respectively. Both sides of the bottom of the side plate 110 are provided with two oppositely arranged clamping plates 111, the inner sides of the two clamping plates 111 are respectively provided with an installation buckle 112, the two ends of the breaker shell 600 along the length direction are limited between the two clamping plates 111, and the two ends of the breaker shell 600 along the length direction are respectively provided with a buckle groove 113 matched with the installation buckle 112. The side plates 110 and the mounting buckles 112 at the two ends are in a U-shaped structure and are sleeved on the circuit breaker shell 600 from the side, so that the two mounting buckles 112 are sleeved on the side cavities 620 at the two ends of the circuit breaker and are respectively clamped into the corresponding clamping grooves to fix the shell 100, and the circuit breaker shell has the characteristics of simple structure and convenience in assembly. However, since the thickness of the circuit breaker case 600 is limited and the latch groove 113 is thin, when a user forcibly performs an illegal closing operation, the case 100 and the mounting latch 112 are easily damaged.

In particular, one of the improvement points of the present invention, the bottom of the side plate 110 is provided with a supporting boss 114 inserted into the case groove 630 to be in limit fit with the circuit breaker case 600, and the supporting bosses 114 at both sides are respectively inserted into the case groove 630 to be in limit fit with the circuit breaker case 600, so that the acting force applied to the case 100 can be shared by the supporting bosses 114, and the case 100 and the mounting buckle 112 can be prevented from being damaged due to an excessive acting force. It should be noted that, the case 100 may not be provided with the side plate 110, and directly fixes the top plate 120 and the circuit breaker case 600, but this needs to modify the circuit breaker case 600, and the manner of setting the side plate 110 is adopted, so that the stress is more reliable, the buckle 112 is matched with the buckle groove 113 for installing accessories on the circuit breaker case 600, the support boss 114 is limited by the existing case groove 630 on the circuit breaker case 600, and the circuit breaker case 600 does not need to be modified and does not need to be mounted by tools.

Referring to fig. 5-6, the top plate 120 is provided with a guide mechanism cooperating with the sliding cover 200 and a locking structure cooperating with the knob 300. In this embodiment, the guiding mechanism includes two sliding plates 121 disposed oppositely, and one sides of the two sliding plates 121 close to each other are respectively provided with a sliding chute 122; the locking structure includes two guide rails 400. As an embodiment of the locking structure, two locking positions on the top plate 120 of the housing 100, which correspond to the sliding cover 200 and block the breaker handles 500 of the two sets of breakers, are respectively provided with a knob slot and/or a knob buckle, the knob 300 is correspondingly provided with a limit buckle and/or a limit groove, the knob 300 rotates to one side after moving to the locking positions along with the sliding cover 200, and the limit buckle and/or the limit groove is matched with the knob slot and/or the knob buckle to realize locking; the reverse rotation is unlocked.

Referring to fig. 4, the sliding cover 200 includes a sliding portion 210 matched with the guiding mechanism, and a blocking portion 220 disposed on a side of the sliding portion 210 and used for limiting the breaker handle 500, the knob 300 is disposed on the sliding portion 210 and matched with the guide rail 400, the sliding portion 210 is provided with two slots 211, slot walls of the two slots 211 extend between the two sliding plates 121 to form limiting buckles 212 (fig. 11), the two limiting buckles 212 are limited in the sliding slots 122 and are in sliding fit, and the sliding portion 210 can drive the blocking portion 220 to move to the position of the breaker handle 500 to block the breaker handle 500 to switch on. The guiding mechanism of this embodiment not only can play a limiting role to prevent the sliding cover 200 from falling off from the housing 100, but also can provide a guiding role for the movement of the sliding cover 200. Obviously, other guiding mechanisms may be adopted, for example, the slot 211 is not provided, or the top plate 120 is provided with a guiding rib, the sliding cover 200 is provided with a guiding slot, the sliding cover 200 is assembled in a direction parallel to the sliding direction, and the like, all of which belong to the protection scope of the present invention.

As shown in fig. 4 to 6, one of the improvement points of the present invention is that the locking structure adopts a structure in which the knob 300 is engaged with the guide rail 400, and the knob 300 is restrained by the guide rail 400. The top plate 120 of the housing 100 includes two parallel guide rails 400 with two staggered ends, and one end of each of the two guide rails 400 is spaced at the side of the other guide rail 400 to form a blocking opening 410; the knob 300 is provided with two locking mechanisms 310 corresponding to the guide rails 400 respectively, when the sliding cover 200 moves to the circuit breaker on one side, the knob 300 is driven to move to the blocking opening 410 at one end, the circuit breaker handle 500 of one group of circuit breakers is blocked, and the knob 300 can be rotated to drive the corresponding locking mechanism 310 to rotate to the blocking opening 410 and limit the circuit breaker in the blocking opening 410 and the guide rails 400. Guide rail 400 through two dislocation sets respectively with two locking mechanical system 310 cooperations respectively, need not set up alone and block mouthful 410, just can directly form respectively at the both ends of guide rail 400 and block mouthful 410, and it is spacing that slide cover 200 can both block mouthful 410 with knob 300 screw in when removing to any side circuit breaker on, can't rotate at will when knob 300 does not remove the mouth 410 that blocks of guide rail 400 along with slide cover 200, guide rail 400 plays the spacing effect of direction simultaneously, have simple structure and the characteristics of the processing of being convenient for.

Preferably, the shell 100, the sliding cover 200 and the knob 300 are respectively injection-molded, the problem that the similar sheet metal parts are scratched due to burrs on the edges of the sheet metal parts cannot exist in the injection molding process, and the plastic has an insulating function, so that the electrical hidden danger is avoided.

Further, referring to fig. 8 to 9, the two locking mechanisms 310 respectively include a blocking member 311 and a locking member 312, the blocking member 311 can be driven by the knob 300 to rotate into the blocking opening 410 to be limited by one of the guide rails 400, and meanwhile, the knob 300 can drive the locking member 312 to rotate to be limited by the other guide rail 400, and the blocking member 311 is pressed against the corresponding guide rail 400 through the locking member 312, so that the locking mechanism 310 is limited between the two guide rails 400, and the blocking effect of the sliding cover 200 after the knob 300 is loosened can be prevented from losing.

Further, the two guide rails 400 are far away from the other ends of the blocking openings 410 and protrude towards the other guide rail 400 to form locking bosses 420, the ends of the two guide rails 400 forming the blocking openings 410 are inclined towards the other guide rail 400 to form blocking surfaces 411 opposite to the locking bosses 420, the blocking piece 311 and the locking piece 312 are limited between the blocking surfaces 411 and the locking bosses 420, and the locking bosses 420 block the locking piece 312 and can also be used for limiting the rotation angle of the knob 300, so that the blocking piece 311 and the guide rails 400 are prevented from being out of fit due to the fact that the rotation angle is too large.

As shown in fig. 7-9, the rotary knob 300 includes a rotary plate 330 and a rotary handle 320 disposed on one side of the rotary plate 330, two sets of locking mechanisms 310 are disposed on the other side of the rotary plate 330 in a central symmetry manner, retaining members 312 of the two sets of locking mechanisms 310 are disposed on a rotary shaft 334 in the middle of the rotary plate 330, the blocking members 311 of the two sets of locking mechanisms 310 are disposed at the edge of the rotary plate 330 at intervals from the respective retaining members 312, when the rotary knob 300 is rotated to the locking position of the housing 100, the outer side surfaces of the blocking members 311 are retained at one end of one guide rail 400, the side surfaces of the retaining members 312 facing the retaining members 312 are retained at one end of the other guide rail 400, when the rotary knob 300 is misaligned with the guide rails 400, the blocking members 311 and the retaining members 312 of the two locking mechanisms 310 can move with the sliding cover 200, the guide and limit functions are achieved.

The locking members 312 of the two sets of locking mechanisms 310 are respectively provided with a locking sliding surface 3121 along one side of the circumference of the rotating disc 330, and are respectively provided with a locking inclined surface 3122 along the other side of the circumference of the rotating disc 330, and the locking sliding surfaces 3121 of the two locking members 312 are parallel to each other and are respectively perpendicular to the rotating handle 320, so that the locking members 312 of the two sets of locking mechanisms 310 can slide between the two guide rails 400. And the included angle between the locking sliding surface 3121 of the two locking members 312 and the respective locking inclined surface 3122 is an acute angle, preferably 5 to 15 degrees, which can prevent the rotation of the rotating handle 320 due to the assembly clearance after the rotating handle 320 is parallel to the rotating handle hole 231 and the rotating handle 320 falls into the rotating handle hole 321 to be clamped.

The blocking parts 311 of the two sets of locking mechanisms 310 are respectively provided with a blocking sliding surface 3111 at one side close to the locking part 312, respectively, a blocking limiting surface 3112 at one side far away from the locking part 312, respectively, and the blocking sliding surfaces 3111 of the two blocking parts 311 are parallel to each other and respectively perpendicular to the rotating handle 320, so that the blocking parts 311 of the two sets of locking mechanisms 310 can respectively slide between the two guide rails 400. The blocking limiting surfaces 3112 of the two blocking members 311 are respectively in an arc structure, and the radian of the blocking limiting surfaces 3112 is the same as that of the circumference of the side surface of the turntable 330, that is, the blocking limiting surfaces 3112 of the two blocking members 311 are formed by extending the circumference of the side surface of the turntable 330, and the blocking surfaces 411 on the guide rail 400 are in an arc structure matched with the radian of the blocking limiting surfaces 3112. The blocking sliding surfaces 3111 of the two blocking elements 311 are parallel to each other and are each arranged perpendicular to the handle 320.

As shown in fig. 4 and 8, the length of the rotating handle 320 is greater than the diameter of the rotating disc 330, the sliding cover 200 is provided with a rotating handle hole 231 for avoiding the rotating handle 320, and the rotating handle 320 passes through the rotating handle hole 231 and then rotates by a certain angle, so that the rotating handle 320 and the rotating disc 330 are respectively limited at two sides of the sliding cover 200.

Referring to fig. 7 to 9, the turntable 330 includes a turntable 331 connected to the handle 320, and a step 332 provided outside the turntable 331, a step concave surface 333 is formed at a junction of the periphery of the turntable 331 and the step 332,

a step groove 232 (fig. 11) matched with the step 332 is formed in the slide cover 200, a turntable hole 233 (fig. 11) matched with the turntable 331 is formed in the step groove 232, the two rotary handle holes 231 are oppositely arranged on two sides of the turntable hole 233 and are communicated with the turntable hole 233, and the inner diameter of the turntable hole 233 is larger than the outer diameter of the turntable 331 and smaller than the outer diameter of the step 332;

both ends of the handle 320 respectively pass through the sliding cover 200 from the handle hole 231, so that the turntable 331 is inserted into the turntable hole 233 to rotate, and the step 332 is limited at the other side of the sliding cover 200 opposite to the handle 320 by the step groove 232. Preferably, the sliding cover 200 is reversely buckled on the top plate 120 in a half-box structure, a plurality of reinforcing ribs 213 are arranged on the inner side of the sliding cover 200, and the reinforcing ribs 213 can improve the structural strength of the sliding cover 200 and prevent the sliding cover 200 from being damaged.

Referring to fig. 10-11, two sets of positioning mechanisms are disposed on the side of the sliding cover 200 close to the rotating handle 320, the two sets of positioning mechanisms are disposed on two sides of the turntable hole 233 in a central symmetry manner, the two sets of positioning mechanisms are respectively matched with two ends of the rotating handle 320, the two sets of positioning mechanisms respectively include a positioning boss 214 and a positioning bump 215, two ends of the rotating handle 320 are respectively disposed with a positioning slot 321 matched with the positioning bump 215, and relevant information, such as a brand, a sliding indication, a buckle release mark, etc., can be stamped or pad-printed at a vacant position on the front of the sliding cover 200.

Two location bumps 215 correspond and set up the left and right sides in revolving stage hole 233, rotate the swing handle 320 and make locking mechanical system 310 get into and block mouthful 410, the constant head tank 321 at swing handle 320 both ends can be respectively "the card tower" overlap once on the location bump 215 that corresponds, rotate to the latched position, not only can play spacing knob 300 and prevent to become flexible toward the unlocked position, but also can be used for the suggestion to rotate and target in place, prevent to continue the application of force and lead to damaging or dislocation inefficacy.

The two positioning bosses 214 are correspondingly arranged at the upper side and the lower side of the rotary table hole 233, and after the rotary handle 320 is rotated to enable the locking mechanism 310 to leave the blocking opening 410, the side surfaces at the two ends of the rotary handle 320 are respectively blocked by the positioning bosses 214, so that the rotary handle 320 can be prevented from rotating continuously, the function of prompting the rotating direction can be realized, and the rotary handle 320 can only rotate towards one side far away from the positioning bosses 214.

As shown in fig. 4, when the mechanical interlock device of the present invention is assembled, the rotating handle 320 of the knob 300 passes through the rotating handle hole 231 from below the sliding cover 200 and then rotates counterclockwise by a certain angle until the rotating handle 320 is stopped by the positioning boss 214, the knob 300 and the sliding cover 200 are assembled together, the sliding cover 200 is assembled to the top plate 120, the two limiting buckles 212 of the sliding cover 200 are clamped in the two sliding grooves 122 of the top plate 120, the sliding cover 200 and the housing 100 are assembled together, the knob 300 is limited between the sliding cover 200 and the top plate 120, and the whole assembly process of the mechanical interlock device is tool-free. Referring to fig. 3, the mechanical interlock is assembled to the side walls of a group of circuit breakers, the side plates 110 are snap-fit connected to the circuit breaker housing 600, and the top plate 120 extends to one side of the circuit breaker handle 500.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A mechanical interlocking device of circuit breakers is used for realizing mechanical interlocking of two groups of circuit breakers, and comprises a shell (100) and a sliding cover (200) movably arranged on the shell (100), and is characterized in that: be equipped with rotatable knob (300) on sliding cover (200), knob (300) drive sliding cover (200) and remove circuit breaker handle (500) that blocks wherein arbitrary a set of circuit breaker and move to the closing position, and dodge circuit breaker handle (500) of another set of circuit breaker, and at this moment, knob (300) can rotate to and lock spacingly with shell (100), block sliding cover (200) and remove.

2. The mechanical interlock device of a circuit breaker according to claim 1, wherein: two positions on the shell (100), which correspond to the sliding cover (200) and block the breaker handles (500) of the two sets of breakers, are respectively provided with a knob clamping groove and/or a knob buckle, and the knob (300) is correspondingly provided with a limit buckle and/or a limit groove.

3. The mechanical interlock device of a circuit breaker according to claim 1, wherein: the shell (100) is provided with two parallel guide rails (400) with two staggered ends, and one ends of the two guide rails (400) are respectively positioned on the side surface of the other guide rail (400) at intervals to form a blocking opening (410); the sliding cover (200) drives the knob (300) to move to a blocking opening (410) at one end, the circuit breaker handle (500) of one group of circuit breakers is blocked, and the rotating knob (300) can drive the corresponding locking mechanism (310) to rotate to the blocking opening (410) to be limited with the guide rail (400).

4. The mechanical interlock device of a circuit breaker according to claim 3, wherein: the two locking mechanisms (310) respectively comprise a blocking part (311) and a locking part (312), the blocking part (311) can be driven by the knob (300) to rotate into the blocking opening (410) to be limited with one guide rail (400), and meanwhile, the knob (300) can drive the locking part (312) to rotate to be limited with the other guide rail (400), so that the locking mechanisms (310) are limited between the two guide rails (400).

5. The mechanical interlock device of a circuit breaker according to claim 4, wherein: the two guide rails (400) are far away from the other ends of the blocking openings (410) and protrude towards the other guide rail (400) to form a locking boss (420), one ends of the two guide rails (400) forming the blocking openings (410) incline towards the other guide rail (400) to form blocking surfaces (411) opposite to the locking boss (420), and the blocking piece (311) and the locking piece (312) are limited between the blocking surfaces (411) and the locking boss (420).

6. The mechanical interlock device of a circuit breaker according to claim 4, wherein: the knob (300) comprises a turntable (330) and a rotary handle (320) arranged on one side of the turntable (330), two groups of locking mechanisms (310) are arranged on the other side of the turntable (330) in a central symmetry mode, locking pieces (312) of the two groups of locking mechanisms (310) are arranged in the middle of the turntable (330), blocking pieces (311) of the two groups of locking mechanisms (310) are arranged on the edge of the turntable (330) at intervals of the respective locking pieces (312), when the knob (300) rotates to the locking limiting position of the shell (100), the outer side face of each blocking piece (311) is limited with one end of one guide rail (400), the side face of each locking piece (312) facing the corresponding locking piece (312) is limited with one end of the other guide rail (400), and when the knob (300) moves along with the sliding cover (200), the blocking pieces (311) and the locking pieces (312) of the two locking mechanisms (310) are respectively.

7. The mechanical interlock device of a circuit breaker according to claim 1, wherein: the shell (100), the sliding cover (200) and the knob (300) are respectively formed by injection molding.

8. The mechanical interlock device of a circuit breaker according to claim 1, wherein: the shell (100) include with circuit breaker casing (600) one side cooperation fixed connection curb plate (110), and roof (120) of being connected perpendicularly with curb plate (110) top one end, roof (120) set up the one side at circuit breaker handle (500), curb plate (110) are connected with circuit breaker casing (600) buckle, be equipped with on roof (120) with sliding closure (200) complex guiding mechanism, sliding closure (200) include with guiding mechanism complex sliding part (210), and block portion (220) of setting in sliding part (210) side, knob (300) set up on sliding part (210), sliding part (210) can drive block portion (220) and remove the position that blocks circuit breaker handle (500) and block circuit breaker handle (500) combined floodgate.

9. The mechanical interlock device of a circuit breaker according to claim 8, wherein: the guide mechanism comprises two oppositely arranged sliding plates (121), sliding grooves (122) are respectively formed in one sides, close to each other, of the two sliding plates (121), and two limiting buckles (212) which are limited in the sliding grooves (122) in sliding fit are arranged on the sliding portion (210).

10. The mechanical interlock device of a circuit breaker according to claim 1, wherein: the rotary knob (300) comprises a rotary table (330), rotary handles (320) and a locking mechanism (310), wherein the rotary handles (320) and the locking mechanism (310) are respectively arranged on two sides of the rotary table (330), the rotary table (330) comprises a rotary table (331) connected with the rotary handles (320) and steps (332) arranged on the outer side of the rotary table (331), a step groove (232) matched with the steps (332) is arranged on the sliding cover (200), a rotary table hole (233) matched with the rotary table (331) is arranged in the step groove (232), the two rotary handle holes (231) are oppositely arranged on two sides of the rotary table hole (233) and communicated with the rotary table hole (233), and the inner diameter of the rotary table hole (233) is larger than the outer diameter of the rotary table (331) and smaller than the outer diameter of the steps (; the rotary handle (320) penetrates through the sliding cover (200) from the rotary handle hole (231) so that the rotary table (331) is inserted into the rotary table hole (233) to rotate, and meanwhile, the step (332) is limited at the other side, opposite to the rotary handle (320), of the sliding cover (200) by the step groove (232).

11. The mechanical interlock device for circuit breaker according to claim 10, wherein: the sliding cover (200) is provided with a positioning boss (214) in limit fit with the side surface of the rotating handle (320), and the positioning boss (214) blocks the knob (300) at a position unlocked from the shell (100); and/or the sliding cover (200) is provided with a positioning salient point (215) matched with the rotating handle (320), the rotating handle (320) is provided with a positioning groove (321) matched with the positioning salient point (215), and the positioning groove (321) is sleeved on the positioning salient point (215) when the knob (300) rotates to the locking and limiting of the shell (100).

12. The mechanical interlock device of a circuit breaker according to claim 8, wherein: curb plate (110) bottom is equipped with splint (111) of two relative settings, and the inboard of two splint (111) is equipped with installation buckle (112) respectively, and circuit breaker casing (600) are spacing between two splint (111) along ascending both ends of length direction, and circuit breaker casing (600) ascending both ends of length direction be equipped with respectively with installation buckle (112) complex buckle groove (113).

13. The mechanical interlock device of a circuit breaker according to claim 8, wherein: breaker housing (600) becomes "protruding" font structure, and the middle part of breaker housing (600) is equipped with last cavity (610) that is used for holding circuit breaker handle (500), and breaker housing (600) corresponds and is equipped with side cavity (620) that are used for holding binding post respectively at both ends of last cavity (610) below, forms housing groove (630) respectively between side cavity (620) top surface at last cavity (610) and both ends, the bottom of curb plate (110) is equipped with insert housing groove (630) in with the spacing complex of breaker housing (600) support boss (114).

14. The mechanical interlock device of a circuit breaker according to claim 6, wherein: the locking pieces (312) of the two groups of locking mechanisms (310) are respectively provided with a locking sliding surface (3121) along one side of the circumferential direction of the rotating disc (330), locking inclined surfaces (3122) are respectively arranged along the other side of the circumferential direction of the rotating disc (330), and the locking sliding surfaces (3121) of the two locking pieces (312) are parallel to each other and are respectively vertical to the rotating handle (320); the included angle between the locking sliding surface (3121) and the locking inclined surface (3122) of the locking member (312) is an acute angle or 5-15 degrees; blocking sliding surfaces (3111) are respectively arranged on one sides, close to the locking pieces (312), of the blocking pieces (311) of the two groups of locking mechanisms (310), blocking limiting surfaces (3112) are respectively arranged on one sides, far away from the locking pieces (312), of the two blocking pieces (311), and the blocking sliding surfaces (3111) of the two blocking pieces are parallel to each other and are respectively perpendicular to the rotating handle (320); the guide rail (400) is provided with a blocking surface (411) matched with the blocking limiting surface (3112), and the blocking surface (411) and the blocking limiting surface (3112) both form a cambered surface structure.

15. A circuit breaker apparatus, characterized in that: mechanical interlocking device comprising a circuit breaker according to any of claims 1-14 and two sets of circuit breakers, said mechanical interlocking device being fixedly mounted between the sides of the two sets of circuit breakers, the sliding cover (200) of the mechanical interlocking device being arranged at the end of the two sets of circuit breakers where the circuit breaker handle (500) is arranged.