CN219534447U - Leakage tripping mechanism of leakage circuit breaker - Google Patents

Abstract

The utility model relates to an electric leakage tripping mechanism of an electric leakage breaker, which comprises a breaker shell, a handle, a tripper and a tripping mechanism, wherein the tripper and the tripping mechanism are arranged in the breaker shell, the tripping mechanism comprises a lock catch, a trip button and a lock catch spring, the tripping mechanism also comprises a bracket, a pulling piece and a pulling rod, the bracket is rotatably arranged in the shell through a first mounting shaft, the first mounting shaft is rotatably provided with the lock catch, the pulling piece is rotatably arranged in the shell through a second mounting shaft, the pulling piece is in abutting arrangement with a push rod on the tripper, the pulling rod is provided with a first arm and a second arm, the first arm is in abutting arrangement with the upper end face of the pulling piece, the second arm is provided with a long groove, the lock catch and the second arm are in linkage fit through a pull rod, one end of the pulling rod is fixed on the trip button, and the other end of the pulling rod is slidably arranged in the long groove. By adopting the technical scheme, the utility model provides the leakage tripping mechanism of the leakage circuit breaker, which has reasonable layout and high space utilization rate, and does not influence the occupied space of the magnetic ring.

Description

Leakage tripping mechanism of leakage circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to an electric leakage tripping mechanism of an electric leakage circuit breaker.

Background

The electromagnetic leakage circuit breaker, especially the multipolar leakage circuit breaker, the magnetic ring needs bigger space, partial products are unstable in performance because the magnetic ring is smaller, therefore, a reasonable release mechanism is needed to reasonably utilize the space.

Disclosure of Invention

The purpose of the utility model is that: in order to overcome the defects of the prior art, the utility model provides an electric leakage tripping mechanism of an electric leakage breaker, which has reasonable layout and high space utilization rate and does not influence the occupied space of a magnetic ring.

The technical scheme of the utility model is as follows: the utility model provides an electric leakage tripping device of electric leakage circuit breaker, includes circuit breaker casing, handle, sets up release and tripping device in the circuit breaker casing, tripping device includes hasp, trip and hasp spring, the trip rotates the top that sets up in the circuit breaker casing, realize linkage cooperation through the connecting rod between trip and the handle, the hasp rotates the setting, and the hasp spring effect is on the trip, makes hasp one end constitute conflict cooperation with the trip and realizes handle combined floodgate operation, tripping device still includes support, plectrum and driving lever, the trip rotates the setting on the support, the support rotates the setting through first installation axle in the circuit breaker casing, the hasp sets up on first installation axle, the plectrum rotates the setting through the second installation axle in the circuit breaker casing, and is located the top of release, the ejector pin conflict setting on plectrum and the release, be equipped with first arm and second arm on the driving lever, the first arm is contradicted and is equipped with the elongated slot on the second arm, the hasp is equipped with the profile groove with the second arm and is passed through the cooperation between the second arm and is realized pulling rod, the setting is used for setting up the setting up in the reset spring in the setting up the reset spring, the setting is used for setting up the reset spring on the support.

By adopting the technical scheme, the first mounting shaft passes through the shaft hole of the bracket and then is put into the circuit breaker shell, the lock catch is placed on the first mounting shaft, the jump buckle and the lock catch spring are placed on the bracket, the bracket spring is positioned at the lower side of the bracket, the release is arranged below the pulling piece, the pulling piece spring is arranged in the pulling piece, the pulling piece with the pulling piece spring is arranged in the circuit breaker shell through the second mounting shaft, the ejector rod of the release is abutted against the pulling piece, the deflector rod is arranged in the circuit breaker shell, the first arm of the deflector rod is abutted against the pulling piece, the two ends of the pull rod are respectively inserted into the slot of the lock catch and the long slot of the pulling rod, the push handle, the jump buckle and the lock catch are meshed under the action of the lock catch spring, the connecting rod pushes the jump buckle so as to push the lock catch and the bracket to rotate clockwise around the first mounting shaft, the bracket is separated from one end of the pulling piece spring, the lock catch drives the pull rod to move to the left side of the long groove, the product is in a closed position, when leakage current occurs in a circuit and is larger than current bearable by the release, the ejector rod on the release moves upwards, the pull rod rotates around the second mounting shaft and drives the deflector rod to rotate, so that the pull rod placed in the long groove is driven to move, the lock catch is pulled to unlock the lock catch and the jump buckle, the support returns under the action of the support spring, the handle returns under the action of the handle spring, the pull rod moves to the right side of the long groove, at the moment, under the action of the pull rod spring force, the pull rod pushes the ejector rod into the release, the product is completely disconnected, the pull rod can freely move due to the arrangement of the long groove, the angle and the space for rotating the pull rod are small, the space is saved, the support is propped against the deflector spring in the disconnection process, and the leakage release mechanism has small integral volume and convenient installation and good stability.

The utility model is further provided with: the plectrum spring adopts the torsional spring setting, be equipped with standing groove, first conflict face and second conflict face on the plectrum, the plectrum spring install in the standing groove, and the first limit of plectrum spring is contradicted on first conflict face, the second limit is contradicted on the second conflict face, be equipped with the boss on the support, the first limit of plectrum spring is contradicted with the boss and is set up or set up with the boss interval, the first limit of plectrum spring sets up with the boss interval when the product is closed, when the product disconnection, the first limit of plectrum spring is contradicted with the boss and is set up.

By adopting the further arrangement, a gap is reserved between the pulling piece spring and the boss, when the ejector rod of the release pushes upwards, the release is easier, the product release can be ensured, when the product is disconnected, the boss is abutted against the first edge of the pulling piece spring, the ejector rod of the release can be pushed back, the torsion spring is sleeved on the pulling piece, the parts are fewer, and the assembly is simple and reliable.

Still further, the present utility model provides: be equipped with the baffle in the circuit breaker casing, support and driving lever all rotate and set up on the baffle, be equipped with the mounting groove on the baffle, be equipped with the location boss on the support, the leg spring set up in the mounting groove, and one end contradicts and set up on the lateral wall of mounting groove, the other end cover is established on the location boss.

By adopting the further arrangement, the bracket spring is limited, the bracket spring is prevented from being separated, and the installation is convenient.

Still further, the present utility model is provided with: the lock catch spring is arranged by a torsion spring, the support is provided with a positioning column and a collision boss, the lock catch spring is sleeved on the positioning column, the lock catch is provided with a positioning groove, the first edge of the lock catch spring is positioned in the positioning groove, and the second edge of the lock catch spring is in collision with the collision boss.

Adopt above-mentioned still further setting, be equipped with the lug that the interval set up on the hasp, form between two lugs the constant head tank, contradict conflict boss and constant head tank on the support with two elasticity angles of hasp spring, stable in structure, it is convenient to reset.

Still further, the present utility model is provided with: the pull rod is U-shaped, the lock catch is provided with a slot, one end of the pull rod is inserted into the slot, and the other end of the pull rod is movably arranged in the long slot.

By adopting the further arrangement, the structure is firm, the pull rod is not easy to fall off, and the pull rod can move in the long groove better.

Still further, the present utility model is provided with: the bracket is provided with an arc-shaped groove and an installation boss, the jump buckle is arranged on the installation boss, and the connecting rod passes through the jump buckle to be arranged in the arc-shaped groove in a sliding manner.

By adopting the further arrangement, the connecting rod is convenient to move, so that the jump buckle is driven to move.

Still further, the present utility model is provided with: the support is provided with an extension plate extending towards the direction far away from the partition plate, a containing groove is formed between the extension plate and the support, and the support spring is located in the containing groove.

By adopting the further arrangement, the support spring has stable structure, is not easy to separate and can reset the support better.

Still further, the present utility model is provided with: the release is characterized in that two mounting columns are arranged on the partition board, at least two mounting holes are formed in the release, and the two mounting columns penetrate through the corresponding mounting holes to realize the mounting of the release.

By adopting the further arrangement, the release has stable structure, and the ejector rod of the release can better drive the shifting piece to swing.

Still further, the present utility model is provided with: the circuit breaker shell comprises a base, a middle seat and an upper cover which are arranged in a split mode, wherein the tripping mechanism and the tripping device are located between the base and the middle seat, an installation space for installing a magnetic ring is formed in one side of the base, located on the tripping mechanism, of the base, and a through hole is formed in the position, corresponding to the magnetic ring, of the middle seat.

By adopting the above arrangement, the structure is simple, and the disassembly and the assembly are convenient.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic view of a trip mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an embodiment of the present utility model when tripped;

FIG. 4 is a schematic view of a trip mechanism according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of an embodiment of the present utility model when fully broken;

FIG. 6 is a schematic view of a paddle according to an embodiment of the utility model;

FIG. 7 is a schematic view of a blade spring according to an embodiment of the present utility model;

FIG. 8 is a schematic view of a lever according to an embodiment of the present utility model;

FIG. 9 is a schematic view of a latch according to an embodiment of the present utility model;

FIG. 10 is a schematic view of a bracket and a latch according to an embodiment of the present utility model;

FIG. 11 is a schematic view of a separator plate according to an embodiment of the present utility model;

FIG. 12 is a schematic view of a bracket and a separator according to an embodiment of the present utility model;

FIG. 13 is a schematic view of a stent according to an embodiment of the present utility model;

FIG. 14 is a schematic view of the rear side of a bracket according to an embodiment of the present utility model;

FIG. 15 is a schematic view of a detent on a latch according to an embodiment of the present utility model;

fig. 16 is a schematic view of a seat in an embodiment of the utility model.

Description of the embodiments

The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indications (such as up, down, front, and rear … …) in the description of the present utility model are merely for explaining the relative positional relationship, movement, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. In the description of the present utility model, "a number" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to base the implementation on the basis of those skilled in the art, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present utility model.

As shown in fig. 1-16, an electric leakage tripping mechanism of an electric leakage breaker comprises a breaker shell 1, a handle 2, a tripper 3 and a tripping mechanism 4, wherein the tripper 3 and the tripping mechanism 4 are arranged in the breaker shell 1, the tripping mechanism comprises a lock catch 41, a trip button 42 and a lock catch spring 43, the trip button 42 is rotatably arranged in the breaker shell 1, the trip button 42 and the handle 2 are in linkage fit through a connecting rod 8, the lock catch is rotatably arranged, the lock catch spring 43 acts on the lock catch 41 to enable one end of the lock catch 41 and the trip button 42 to form an interference fit to realize the closing operation of the handle, the breaker shell 1 comprises a base 15, a middle seat 16 and an upper cover which are arranged in a split manner, the tripping mechanism 4 and the tripper 3 are arranged between the base 15 and the middle seat 16, one side of the base 15, which is positioned on the tripping mechanism 4, is provided with an installation space 151 for installing a magnetic ring 100, the middle seat 16 is provided with a through hole 161 corresponding to the position of the magnetic ring 100, the tripping mechanism 4 further comprises a bracket 44, a pulling piece 45 and a pulling rod 46, the pulling piece 42 is rotatably arranged on the bracket 44, the bracket 44 is rotatably arranged in the breaker shell 1 through a first mounting shaft 5, the lock catch 41 is arranged on the first mounting shaft 5, the pulling piece 45 is rotatably arranged in the breaker shell 1 through a second mounting shaft 6 and is positioned above the tripper 3, the pulling piece 45 is in abutting arrangement with the ejector rod 30 on the tripper 3, the pulling rod 46 is provided with a first arm 461 and a second arm 462, the first arm 461 is in abutting arrangement with the upper end face of the pulling piece 45, the second arm 462 is provided with a long groove 4621, the long groove 4621 is in elliptical arrangement, the lock catch 41 and the second arm 462 are in linkage fit through a pull rod 7, one end of the pull rod 7 is fixed on the lock catch 41, the other end of the pull rod 7 is slidably arranged in the long groove 4621, the pull rod 7 is U-shaped, the lock catch 41 is provided with a slot 412, one end of the pull rod 7 is inserted into the slot 412, the other end is movably arranged in a long slot 4621, in particular, the bracket 44 is provided with an arc groove 445 and a mounting boss 446, the jump button 42 is arranged on the mounting boss 446, the connecting rod 8 passes through the jump button 42 and is slidably arranged in the arc groove 445, the release 3 pushes the pulling piece 45 to swing to drive the pulling rod 46 to swing, thereby driving the lock catch 41 to swing to realize release, the shell 1 is also internally provided with a pulling piece spring 11 for resetting the pulling piece 45 and a bracket spring 12 for resetting the bracket 44, the pulling piece spring 11 is arranged on the pulling piece 45, one end is in abutting arrangement or interval arrangement with the bracket 44, the first mounting shaft 5 is put into the circuit breaker shell 1 after passing through the shaft hole of the bracket 44, the lock catch 41 is put on the first mounting shaft 5, the trip button 42 and the latch spring 43 are placed on the bracket 44, the bracket spring 12 is positioned at the lower side of the bracket 44, the trip unit 3 is arranged below the pulling piece 45, the pulling piece spring 11 is arranged in the pulling piece 45, the pulling piece 45 with the pulling piece spring 11 is arranged in the circuit breaker shell 1 through the second mounting shaft 6, the ejector rod 30 of the trip unit 3 is abutted against the pulling piece 45, the pulling rod 46 is arranged in the circuit breaker shell 1, the first arm 461 of the pulling rod 46 is abutted against the pulling piece 45, the two ends of the pulling rod 7 are respectively inserted into the slot 412 of the latch 41 and the long slot 4621 of the pulling rod 46, the handle 2 is pushed, the trip button 42 and the latch 41 are meshed under the action of the latch spring 43, the connecting rod 8 pushes the trip button 42 so as to push the latch 41 and the bracket 44 to rotate clockwise around the first mounting shaft 5, the bracket 44 is separated from one end of the pulling piece spring 11, the latch 41 drives the pulling rod 7 to move to the left side of the long slot 4621, when the leakage current occurs in the circuit and is larger than the bearable current of the release, the ejector rod 30 on the release 3 moves upwards, the pulling piece 45 rotates around the second installation shaft 6 and drives the deflector rod 46 to rotate, the pull rod 7 placed in the long groove 4621 is driven to move, the lock catch 41 is pulled to unlock the lock catch 41 and the jump catch 42, the support 44 returns under the action of the support spring 12, the handle 2 returns under the action of the handle spring, the pull rod 7 moves to the right side of the long groove 4621, at the moment, the pulling piece 45 pushes the ejector rod 30 into the release 3 under the action of the pulling piece spring force, the product is completely disconnected, the pull rod 7 can freely move and the angle and the space for rotating the pulling rod 7 are small due to the arrangement of the long groove 4621, the support is abutted on the deflector rod spring in the disconnection process of the mechanism, and the leakage release mechanism has small integral volume, convenient installation and good stability.

The plectrum spring 11 adopts the torsional spring setting, be equipped with standing groove 451, first conflict face 452 and second conflict face 453 on the plectrum 45, plectrum spring 11 install in standing groove 451, and the first limit 111 conflict of plectrum spring 11 is on first conflict face 452, the second limit 112 conflict is on second conflict face 453, be equipped with boss 441 on the support 44, the first limit 111 of plectrum spring 11 conflict setting or with boss 441 interval setting with boss 441, the first limit 111 of plectrum spring 11 and boss 441 interval setting when the product is closed, when the product disconnection, the first limit 111 of plectrum spring and boss 441 conflict setting, there is the clearance between plectrum spring and the boss, when release ejector 30 upwards pushes up, and is lighter, can guarantee the product release, and the boss is contradicted on the first limit of plectrum spring when the product disconnection, can push back release ejector 30, and the torsional spring cover is few at the epaxial part of plectrum, and the assembly is simple reliable.

Be equipped with baffle 13 in the circuit breaker casing 1, support 44 and driving lever 46 all rotate and set up on baffle 13, be equipped with mounting post 133 on the baffle 13, driving lever 46 sets up on mounting post 133, be equipped with mounting groove 131 on the baffle 13, be equipped with location boss 442 on the support 44, support spring 12 set up in mounting groove 131, and one end conflict set up on the lateral wall of mounting groove 131, the other pot head is established on location boss 442, be equipped with on the support 44 to the extension board 447 that keeps away from baffle 13 direction extension, form accommodation groove 9 between extension board 447 and the support 44, support spring 12 be located accommodation groove 9, carry out spacingly to support spring 12, prevent that it from breaking away from to simple to operate. The separator 13 is provided with two mounting columns 132, the release 3 is provided with at least two mounting holes 31, and the two mounting columns 132 penetrate through the corresponding mounting holes 31 to realize the mounting of the release 3, so that the release is stable in structure, and the ejector rod 30 of the release can better drive the plectrum to swing.

The utility model discloses a lock catch spring adopts 43 to set up with the torsional spring, be equipped with reference column 443 and conflict boss 444 on the support 44, lock catch spring 43 cover establish on reference column 443, be equipped with constant head tank 411 on the lock catch 41, lock catch spring 43's first limit is located constant head tank 411, the second limit is contradicted and is set up on conflict boss 444, is equipped with the lug 413 that the interval set up on the lock catch 41, forms between two lugs 413 constant head tank 411, contradicts conflict boss 444 and constant head tank 411 on support 44 respectively with two elastic angle of lock catch spring 43, stable in structure, it is convenient to reset.

Claims (9)

1. The utility model provides an electric leakage tripping device of electric leakage circuit breaker, includes circuit breaker casing (1), handle (2), sets up release (3) and tripping device (4) in circuit breaker casing (1), tripping device includes hasp (41), jump knot (42) and hasp spring (43), jump knot (42) rotate and set up in circuit breaker casing (1), realize the linkage cooperation through connecting rod (8) between jump knot (42) and handle (2), hasp (41) rotate and set up, hasp spring (43) are used in hasp (41), make hasp (41) one end constitute the interference fit with jump knot (42) and realize handle switching-on operation, characterized in that, tripping device (4) still include support (44), plectrum (45) and driving lever (46), jump knot (42) rotate and set up on support (44), support (44) rotate through first installation axle (5) and set up in circuit breaker casing (1), hasp (41) set up on first installation axle (5), setting up on the side of setting up on release (3) and setting up on ejector pin (45) and setting up on release (3) and driving lever (45), be equipped with first arm (461) and second arm (462) on driving lever (46), first arm (461) conflict sets up the up end at plectrum (45), be equipped with elongated slot (4621) on second arm (462), realize linkage cooperation through pull rod (7) between hasp (41) and second arm (462), pull rod (7) one end is fixed on hasp (41), the other end slides and sets up in elongated slot (4621), release (3) promote plectrum (45) swing, drive driving lever (46) swing to drive hasp (41) swing realization tripping, still be equipped with in circuit breaker casing (1) plectrum spring (11) that are used for resetting plectrum (45) and bracket spring (12) that are used for resetting bracket (44), plectrum spring (11) set up on plectrum (45), and one end and bracket (44) conflict setting or interval setting.

2. The leakage tripping device of claim 1, wherein the paddle spring (11) is arranged by a torsion spring, a placing groove (451), a first abutting surface (452) and a second abutting surface (453) are arranged on the paddle (45), the paddle spring (11) is installed in the placing groove (451), a first edge (111) of the paddle spring (11) abuts against the first abutting surface (452), a second edge (112) abuts against the second abutting surface (453), a boss (441) is arranged on the bracket (44), the first edge (111) of the paddle spring (11) abuts against the boss (441) or is arranged at intervals with the boss (441), the first edge (111) of the paddle spring (11) abuts against the boss (441) when the product is closed, and the first edge (111) of the paddle spring (11) abuts against the boss (441) when the product is disconnected.

3. The leakage tripping mechanism of a leakage breaker according to claim 1 or 2, characterized in that a partition plate (13) is arranged in the breaker housing (1), the bracket (44) and the deflector rod (46) are both rotatably arranged on the partition plate (13), a mounting groove (131) is arranged on the partition plate (13), a positioning boss (442) is arranged on the bracket (44), the bracket spring (12) is arranged in the mounting groove (131), one end of the bracket spring is abutted to the side wall of the mounting groove (131), and the other end of the bracket spring is sleeved on the positioning boss (442).

4. The leakage tripping mechanism of a leakage breaker according to claim 1 or 2, wherein the locking spring (43) is arranged by a torsion spring, the bracket (44) is provided with a positioning column (443) and a collision boss (444), the locking spring (43) is sleeved on the positioning column (443), the locking spring (41) is provided with a positioning slot (411), a first edge (111) of the locking spring (43) is positioned in the positioning slot (411), and a second edge (112) is arranged on the collision boss (444) in a collision manner.

5. The leakage tripping mechanism of a leakage breaker according to claim 1 or 2, wherein the pull rod (7) is arranged in a U shape, the lock catch (41) is provided with a slot (412), one end of the pull rod (7) is inserted into the slot (412), and the other end is movably arranged in the long slot (4621).

6. The leakage tripping mechanism of a leakage breaker according to claim 1 or 2, characterized in that the bracket (44) is provided with an arc-shaped groove (445) and a mounting boss (446), the trip button (42) is arranged on the mounting boss (446), and the connecting rod (8) is slidably arranged in the arc-shaped groove (445) through the trip button (42).

7. A leakage tripping device for a leakage breaker according to claim 3, wherein the bracket (44) is provided with an extension plate (447) extending away from the partition plate (13), a receiving groove (9) is formed between the extension plate (447) and the bracket (44), and the bracket spring (12) is located in the receiving groove (9).

8. The leakage tripping mechanism of a leakage breaker according to claim 7, wherein two mounting posts (132) are arranged on the partition board (13), at least two mounting holes (31) are arranged on the release (3), and the two mounting posts (132) penetrate through the corresponding mounting holes (31) to realize the mounting of the release (3).

9. The leakage tripping mechanism of the leakage breaker according to claim 1 or 2, wherein the breaker housing (1) comprises a base (15), a middle base (16) and an upper cover which are arranged in a split mode, the tripping mechanism (4) and the tripping device (3) are located between the base (15) and the middle base (16), an installation space (151) for installing a magnetic ring is formed in one side of the base (15) located on the tripping mechanism (4), and a through hole (161) is formed in the middle base (16) corresponding to the position of the magnetic ring.