CN113675022A - Moulded case circuit breaker with self-locking function - Google Patents
Moulded case circuit breaker with self-locking function Download PDFInfo
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- CN113675022A CN113675022A CN202110956414.1A CN202110956414A CN113675022A CN 113675022 A CN113675022 A CN 113675022A CN 202110956414 A CN202110956414 A CN 202110956414A CN 113675022 A CN113675022 A CN 113675022A
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- self
- fixed
- locking
- circuit breaker
- breaker body
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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Abstract
The invention provides a molded case circuit breaker with a self-locking function, which comprises a mounting plate, a circuit breaker body, a knife switch, a connecting column, jacks, a closing self-locking mechanism and a connecting mechanism, wherein the circuit breaker body is movably connected to one side of the mounting plate, the knife switch is mounted in the middle of one side of the circuit breaker body, which is far away from the mounting plate, the connecting column is symmetrically and equidistantly fixed on one side of the mounting plate, which is close to the circuit breaker body, the jacks are symmetrically and equidistantly arranged on two sides of the circuit breaker body, the connecting column is spliced with the jacks, and the closing self-locking mechanism is arranged on one side of the circuit breaker body, which is close to the knife switch. Meanwhile, the speed of disassembling the breaker body is improved, and great convenience is brought to people to use.
Description
Technical Field
The invention relates to the technical field of molded case circuit breakers, in particular to a molded case circuit breaker with a self-locking function.
Background
Moulded case circuit breaker can set for the back automatic cutout electric current at the electric current surpasss the trip, and the moulded case refers to uses plastic insulator to come as the shell of device, is used for keeping apart between the conductor and the ground connection metal part, and moulded case circuit breaker contains the thermomagnetic trip unit usually, and the moulded case circuit breaker of major model can be equipped with solid-state trip sensor, and its trip unit divide into: common rated currents of the thermomagnetic tripping device and the electronic tripping device are 16, 25, 30, 40, 50, 63, 80, 100, 125, 160, 200, 225, 250, 315, 350, 400, 500 and 630A;
the existing circuit breaker is not provided with a corresponding self-locking mechanism when in use, so that when an electrician carries out maintenance work of circuit equipment after switching off, a knife switch is easily switched on by people through errors, the phenomenon of electric shock of the electrician is easily caused, meanwhile, the existing circuit breaker is usually fixed by a plurality of screws, and in the maintenance process of a subsequent circuit, time is wasted very when the circuit breaker needs to be disassembled and assembled, and the efficiency of disassembling and assembling the circuit breaker is reduced.
Therefore, there is a need for a new molded case circuit breaker with a self-locking function to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a molded case circuit breaker with a self-locking function.
The invention provides a molded case circuit breaker with a self-locking function, which comprises a mounting plate, a circuit breaker body, a knife switch, a connecting column, jacks, a switching-on self-locking mechanism and a connecting mechanism, wherein the circuit breaker body is movably connected to one side of the mounting plate, the knife switch is mounted in the middle of one side, far away from the mounting plate, of the circuit breaker body, the connecting column is symmetrically and equidistantly fixed to one side, close to the circuit breaker body, of the mounting plate, the jacks are symmetrically and equidistantly arranged on two sides of the circuit breaker body, the connecting column is in plug-in connection with the jacks, the switching-on self-locking mechanism is arranged on one side, close to the knife switch, of the circuit breaker body and used for self-locking the knife switch after the switching-on power-off of the knife switch, so that the phenomenon of switching-on failure is avoided, and the connecting mechanism is fixed to one side of the circuit breaker body and the mounting plate and used for completing the connecting work between the circuit breaker body and the mounting plate.
Preferably, the switching-on self-locking mechanism comprises a moving bar, a self-locking bar, a sliding bar, a first spring, a self-locking hole, a rotating shaft, a driving disc, a driving column, a connecting groove, a worm wheel and a motor, wherein the moving bar is slidably connected to one side of the breaker body close to the switch blade, the upper end of the moving bar is slidably connected with the self-locking bar, one end of the self-locking bar is arranged in an inclined plane, the sliding bar is fixed on the inner wall of the self-locking bar, the sliding bar is slidably connected with the moving bar through the first sliding hole, the first spring is fixed on one side of the upper end of the moving bar, one end of the first spring, far away from the moving bar, surrounds the sliding bar and is fixed on the inner wall of the self-locking bar, the self-locking hole is arranged on one side of the switch blade close to the self-locking bar, the rotating shaft is rotatably connected to one side of the breaker body close to the moving bar through a bearing, the driving disc is fixed on one end of the rotating shaft, far away from the breaker body, the driving column is fixed on one side, close to the moving strip, of the driving disc, the connecting groove is formed in the middle of the lower end of the moving strip, the driving column is connected with the inner wall of the connecting groove in a sliding mode, the worm wheel is fixed in the middle of the rotating shaft, the connecting plates are fixed on one side, close to the worm wheel, of the circuit breaker body, the number of the connecting plates is two, the worm is connected between the two connecting plates in a rotating mode through bearings, the worm is connected with the worm wheel in a meshed mode, the motor is fixed on one side of one connecting plate at the upper end of the circuit breaker body, and one end, close to the motor, of the worm is fixed with the output end of the motor.
Preferably, the circuit breaker body is fixed with the support bar, two near one side equidistance of removing the strip be fixed with the slide rail between the support bar, remove the strip respectively through two spouts and two slide rail sliding connection.
Preferably, a closed box is fixed on one side of the circuit breaker body close to the self-locking strip, and the self-locking strip is connected with the side wall of the closed box in a sliding mode through a second sliding hole.
Preferably, one side of the circuit breaker body close to the sealing box is located on the inner side of the sealing box and is fixed with a stabilizing sleeve, and the rotating shaft is rotatably connected with the inner wall of the stabilizing sleeve.
Preferably, the connecting mechanism comprises a mounting box, buckling blocks, a second spring, locking blocks, T-shaped pressing strips, a pressing head, a pressing column and a driving inclined block, the mounting box is fixed on one side of the breaker body, the two buckling blocks are symmetrically and slidably connected to the inner wall of the mounting box, the second spring is fixed on one side of the buckling blocks, one end, far away from the buckling blocks, of the second spring is fixed to the inner wall of the mounting box, the locking blocks are fixed on one side, close to the buckling blocks, of the mounting plate and clamped with the two buckling blocks respectively, the T-shaped pressing strips are slidably connected to the inner wall of the mounting box, one end of each T-shaped pressing strip penetrates through the side wall of the mounting box and extends to the outer side of the mounting box, the pressing head is fixed to one end of each T-shaped pressing strip, the two pressing columns are symmetrically fixed on one side, far away from the pressing head, of each pressing column, of the driving inclined block is fixed on one side, close to the pressing column, of the locking blocks, and the compression leg is slidably connected with the surface of the driving sloping block.
Preferably, the middle part that the T type layering is close to press head one side has been seted up and has been reset the groove, one side that the inner wall of mounting box is close to the groove that resets is fixed with the blend stop, the one end of blend stop is fixed with the third spring, the one end that the blend stop was kept away from to the third spring is fixed with the inner wall that resets the groove.
Preferably, the surface of the pressing head is equidistantly provided with first anti-skid grains.
Preferably, the inner wall of the jack close to one end of the mounting plate is provided with a chamfer.
Preferably, the surface of the knife switch is equidistantly provided with second anti-skid grains.
Compared with the related art, the molded case circuit breaker with the self-locking function provided by the invention has the following beneficial effects:
1. according to the circuit breaker, the switch blade can be automatically locked after the switch blade is switched off and is powered off through the arranged switch-on self-locking mechanism, so that the phenomenon that people perform misoperation to switch on the switch blade can be avoided, an electrician is prevented from electric shock, the life safety of the electrician is effectively protected, and the safety performance of the circuit breaker body is greatly improved;
2. the connecting mechanism can complete the connection work of the mounting plate and the breaker body, so that after the mounting plate is mounted at a use position, the speed of mounting the breaker body by people can be greatly improved, the speed of dismounting the breaker body is improved, and the use by people is greatly facilitated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the position structure of the jack of the present invention;
FIG. 3 is a schematic structural diagram of a closing self-locking mechanism according to the present invention;
FIG. 4 is an enlarged view of the invention at A;
FIG. 5 is a second schematic structural diagram of a closing self-locking mechanism of the present invention;
FIG. 6 is an enlarged view of the invention at B;
FIG. 7 is a schematic view of the position structure of the self-locking strip of the present invention;
FIG. 8 is a schematic view of the connection mechanism of the present invention;
fig. 9 is an enlarged view of the present invention at C.
Reference numbers in the figures: 1. mounting a plate; 2. a circuit breaker body; 3. a knife switch; 4. connecting columns; 5. a jack; 6. a closing self-locking mechanism; 61. a moving bar; 62. a self-locking bar; 63. a slide bar; 64. a first spring; 65. self-locking holes; 66. a rotating shaft; 67. a drive disc; 68. a drive column; 69. connecting grooves; 610. a worm gear; 611. a connecting plate; 612. a worm; 613. a motor; 7. a connecting mechanism; 71. mounting a box; 72. a buckling block; 73. a second spring; 74. a locking block; 75. a T-shaped layering; 76. a pressing head; 77. pressing the column; 78. driving the swash block; 8. a supporting strip; 9. a slide rail; 10. a closure box; 11. a stabilizing sleeve; 12. a reset groove; 13. blocking strips; 14. a third spring; 15. a first anti-skid pattern; 16. and a second anti-slip pattern.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Referring to fig. 1 and 5, a molded case circuit breaker with a self-locking function according to an embodiment of the present invention includes a mounting plate 1, a circuit breaker body 2, a switch blade 3, a connecting post 4, jacks 5, a closing self-locking mechanism 6 and a connecting mechanism 7, wherein the circuit breaker body 2 is movably connected to one side of the mounting plate 1, the switch blade 3 is mounted in the middle of one side of the circuit breaker body 2 away from the mounting plate 1, the connecting post 4 is symmetrically and equidistantly fixed to one side of the mounting plate 1 close to the circuit breaker body 2, the jacks 5 are symmetrically and equidistantly arranged on two sides of the circuit breaker body 2, the connecting post 4 is inserted into the jacks 5, the closing self-locking mechanism 6 is arranged on one side of the circuit breaker body 2 close to the switch blade 3 for self-locking the switch blade 3 after the switch blade 3 is opened and powered off, so as to avoid a phenomenon of a closing error, the connecting mechanism 7 is fixed to one side of the circuit breaker body 2, for completing the connection work between the breaker body 2 and the mounting plate 1.
Referring to fig. 3, 4, 5 and 6, the closing self-locking mechanism 6 includes a moving bar 61, a self-locking bar 62, a sliding bar 63, a first spring 64, a self-locking hole 65, a rotating shaft 66, a driving disc 67, a driving column 68, a connecting groove 69, a worm wheel 610 and a motor 613, the moving bar 61 is slidably connected to one side of the breaker body 2 close to the knife switch 3, the self-locking bar 62 is slidably connected to the upper end of the moving bar 61, one end of the self-locking bar 62 is disposed in an inclined plane, the sliding bar 63 is fixed to the inner wall of the self-locking bar 62, the sliding bar 63 is slidably connected to the moving bar 61 through the first sliding hole, the first spring 64 is fixed to one side of the upper end of the moving bar 61, one end of the first spring 64 far from the moving bar 61 is fixed to the inner wall of the self-locking bar 62 around the sliding bar 63, the self-locking hole 65 is opened to one side of the knife switch 3 close to the self-locking bar 62, the self-locking bar 62 is in snap-locking hole 65, the rotating shaft 66 is rotatably connected to one side of the breaker body 2 close to the moving bar 61 through a bearing, the driving disc 67 is fixed to one end of the rotating shaft 66 far away from the breaker body 2, the driving column 68 is fixed to one side of the driving disc 67 close to the moving bar 61, the connecting groove 69 is formed in the middle of the lower end of the moving bar 61, the driving column 68 is slidably connected to the inner wall of the connecting groove 69, the worm wheel 610 is fixed to the middle of the rotating shaft 66, the connecting plate 611 is fixed to one side of the breaker body 2 close to the worm wheel 610, the connecting plates 611 are two, the worm 612 is rotatably connected between the two connecting plates 611 through bearings, the worm 612 is in meshed connection with the worm wheel 610, the motor 613 is fixed to one side of one connecting plate 611 at the upper end of the breaker body 2, and one end of the worm 612 close to the motor 613 is fixed to the output end of the motor 613.
It should be noted that, through the closing self-locking mechanism 6 that sets up, can carry out the automatic locking to plug-in strip 3 after the power off of the floodgate strip 3 that falls to can avoid people's fault operation to make plug-in strip 3 close a floodgate, thereby avoid electrician to take place the electric shock phenomenon, protect electrician's life safety effectively, very big improvement circuit breaker body 2's security performance.
Referring to fig. 4, support bars 8 are equidistantly fixed on one side of the circuit breaker body 2 close to the moving bar 61, a sliding rail 9 is fixed between the two support bars 8, and the moving bar 61 is slidably connected with the two sliding rails 9 through two sliding grooves, respectively, and can support the moving bar 61 so that it can slide smoothly.
Referring to fig. 1 and 7, a closing box 10 is fixed to one side of the circuit breaker body 2 close to the self-locking bar 62, and the self-locking bar 62 is slidably connected to a side wall of the closing box 10 through a second sliding hole, so that the closing self-locking mechanism 6 can be conveniently closed, the smooth self-locking work can be guaranteed, and the phenomenon that people maliciously pull the self-locking bar 62 to unlock can be avoided.
Referring to fig. 6, a stabilizing sleeve 11 is fixed on the inner side of the closing box 10 at one side of the circuit breaker body 2 close to the closing box 10, and the rotating shaft 66 is rotatably connected with the inner wall of the stabilizing sleeve 11, so that the stability of the connection between the rotating shaft 66 and the circuit breaker body 2 can be effectively improved.
Referring to fig. 8 and 9, the connecting mechanism 7 includes a mounting box 71, snap-in blocks 72, a second spring 73, locking blocks 74, a T-shaped bead 75, a pressing head 76, pressing posts 77 and a driving inclined block 78, the mounting box 71 is fixed on one side of the circuit breaker body 2, the two snap-in blocks 72 are symmetrically and slidably connected to an inner wall of the mounting box 71, the second spring 73 is fixed on one side of the snap-in block 72, one end of the second spring 73 far from the snap-in block 72 is fixed to the inner wall of the mounting box 71, the locking block 74 is fixed on one side of the mounting plate 1 close to the snap-in block 72, the locking blocks 74 are respectively snap-connected to the two snap-in blocks 72, the T-shaped bead 75 is slidably connected to the inner wall of the mounting box 71, one end of the T-shaped bead 75 passes through the side wall of the mounting box 71 and extends to the outer side of the pressing box 71, the pressing head 76 is fixed at one end of the T-shaped bead 75, the two pressing posts 77 are symmetrically fixed on one side of the T-shaped bead 75 far from the head 76, the driving inclined block 78 is fixed on one side of the locking block 74 close to the pressing column 77, and the pressing column 77 is connected with the surface of the driving inclined block 78 in a sliding mode.
It should be noted that, the connection work of the mounting plate 1 and the circuit breaker body 2 can be completed through the connecting mechanism 7, so that after the mounting plate 1 is mounted on a use position, the speed of mounting the circuit breaker body 2 by people can be greatly increased, the speed of dismounting the circuit breaker body 2 is increased, and great convenience is brought to people.
Referring to fig. 9, a reset groove 12 is formed in the middle of one side of the T-shaped pressing strip 75 close to the pressing head 76, a barrier strip 13 is fixed on one side of the inner wall of the mounting box 71 close to the reset groove 12, a third spring 14 is fixed at one end of the barrier strip 13, and one end of the third spring 14, which is far away from the barrier strip 13, is fixed to the inner wall of the reset groove 12, so that the T-shaped pressing strip 75 can be driven to reset conveniently.
Referring to fig. 9, the first anti-slip threads 15 are equidistantly formed on the surface of the pressing head 76, so that the friction between the hand and the pressing head 76 can be improved.
Referring to fig. 2, the inner wall of the insertion hole 5 near one end of the mounting plate 1 is provided with a chamfer, so that the connecting column 4 can be conveniently inserted into the insertion hole 5.
Referring to fig. 1, the surface of the knife switch 3 is provided with second anti-slip threads 16 at equal intervals, so as to increase the friction between the hand and the knife switch 3.
The plastic case circuit breaker with the self-locking function provided by the invention has the following working principle:
when the installation box is used, the installation plate 1 is installed on a use position through a screw, the breaker body 2 is taken up, the jack 5 on the breaker body 2 is aligned to the six connecting posts 4 on the installation plate 1, the connecting posts 4 are sleeved into the jack 5, the breaker body 2 is pushed to one side close to the installation plate 1 until one side of the breaker body 2 is contacted with the surface of the installation plate 1, in the process of pushing the breaker body 2, the locking block 74 can be inserted into the installation box 71, in the inserting process, the locking block 74 can push the two buckling blocks 72 open, the buckling blocks 72 slide to one side far away from the locking block 74 along the inner wall of the installation box 71 and simultaneously compress the second spring 73, and finally after one side of the breaker body 2 is contacted with the surface of the installation plate 1, the two buckling blocks 72 can clamp the locking block 74 under the resilience force of the second spring 73, thereby, the installation work of the breaker body 2 can be completed, and when the breaker body 2 needs to be disassembled, by holding the breaker body 2 and pressing the pressing head 76 at the same time, thereby pushing the T-shaped pressing bar 75 to slide towards one side close to the mounting plate 1, pushing the two pressing columns 77 to simultaneously press against the surface of the driving inclined block 78, thereby driving the two buckling blocks 72 to move towards the direction away from each other along the inner wall of the mounting box 71, thereby separating the two buckling blocks 72 from the locking block 74, then the circuit breaker body 2 is taken up to separate the circuit breaker body 2 from the locking piece 74, the circuit breaker body 2 is taken down, the pressing head 76 is released after the circuit breaker body 2 is driven, the T-shaped pressing strip 75 can be reset under the action of the resilience force of the third spring 14, and the two buckling blocks 72 can be reset simultaneously under the action of the second spring 73, so that the disassembly work of the breaker body 2 is completed;
when power is required to be cut off, the switch blade 3 is pulled downwards to complete power-off work, and in the process that the switch blade 3 is pulled downwards, the switch blade 3 can extrude the inclined surface of the self-locking bar 62, so that the self-locking bar 62 can be pushed to slide towards one side far away from the switch blade 3, until the switch blade 3 is switched off and stops, at the moment, the position of the self-locking bar 62 is just corresponding to the position of the self-locking hole 65, the self-locking bar 62 can be pushed to be inserted into the self-locking hole 65 under the action of resilience of the first spring 64, so that the self-locking work of the switch blade 3 is completed, when the switch blade 3 is required to be pulled upwards to be switched on, the driving motor 613 rotates, so that the worm 612 rotates, the worm wheel 610 can be driven to rotate, the rotating shaft 66 can be driven to rotate, the driving disc 67 stops the motor 613 rotating after rotating 180 degrees, so that the moving bar 61 can be driven by the matching of the driving column 68 and the connecting groove 69 to slide towards one side far away from the switch blade 3 along the sliding rail 9 So as to drive the self-locking bar 62 to slide towards one side far away from the switch blade 3, so that the self-locking bar 62 can be pulled out from the self-locking hole 65, thereby completing the unlocking work of the switch blade 3, and people can push the switch blade 3 upwards to complete the switching-on work;
according to the invention, the switch blade 3 can be automatically locked after the switch blade 3 is switched off and is powered off by the arranged switch-on self-locking mechanism 6, so that the problem that people perform misoperation to switch on the switch blade 3 can be avoided, the phenomenon of electric shock of an electrician is avoided, the life safety of the electrician is effectively protected, the safety performance of the breaker body 2 is greatly improved, meanwhile, the connecting work of the mounting plate 1 and the breaker body 2 can be completed by the arranged connecting mechanism 7, therefore, after the mounting plate 1 is mounted on a use position, the speed of mounting the breaker body 2 by people can be greatly improved, the speed of dismounting the breaker body 2 is improved, and the use by people is greatly facilitated.
The circuits and controls involved in the present invention are prior art and will not be described in detail herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a moulded case circuit breaker with self-locking function which characterized in that includes:
a mounting plate (1);
the circuit breaker comprises a circuit breaker body (2), wherein the circuit breaker body (2) is movably connected to one side of a mounting plate (1);
the switch blade (3) is arranged in the middle of one side, far away from the mounting plate (1), of the breaker body (2);
the connecting columns (4) are symmetrically and equidistantly fixed on one side, close to the breaker body (2), of the mounting plate (1);
the jacks (5) are symmetrically arranged on two sides of the breaker body (2) at equal intervals, and the connecting column (4) is inserted into the jacks (5);
the closing self-locking mechanism (6) is arranged on one side, close to the knife switch (3), of the breaker body (2) and is used for self-locking the knife switch (3) after the knife switch (3) is opened and is powered off, and therefore the phenomenon of false closing is avoided;
the connecting mechanism (7) is fixed on one side of the breaker body (2) and used for completing the connection work between the breaker body (2) and the mounting plate (1).
2. The molded case circuit breaker with self-locking function according to claim 1, wherein the closing self-locking mechanism (6) comprises:
the moving bar (61), the moving bar (61) is connected to one side of the breaker body (2) close to the knife switch (3) in a sliding manner;
the upper end of the moving bar (61) is connected with the self-locking bar (62) in a sliding mode, and one end of the self-locking bar (62) is arranged in an inclined plane;
the sliding rod (63) is fixed on the inner wall of the self-locking strip (62), and the sliding rod (63) is connected with the moving strip (61) in a sliding mode through a first sliding hole;
the first spring (64) is fixed on one side of the upper end of the moving bar (61), and one end, far away from the moving bar (61), of the first spring (64) is fixed with the inner wall of the self-locking bar (62) in a surrounding mode through the sliding rod (63);
the self-locking hole (65), the self-locking hole (65) is formed in one side, close to the self-locking strip (62), of the switch blade (3), and the self-locking strip (62) is clamped with the self-locking hole (65);
the rotating shaft (66) is rotatably connected to one side, close to the moving strip (61), of the breaker body (2) through a bearing;
the driving disc (67), the driving disc (67) is fixed at one end of the rotating shaft (66) far away from the circuit breaker body (2);
the driving column (68), the said driving column (68) is fixed on one side close to moving strip (61) of driving disc (67);
the connecting groove (69) is formed in the middle of the lower end of the moving bar (61), and the driving column (68) is connected with the inner wall of the connecting groove (69) in a sliding mode;
the worm wheel (610), the said worm wheel (610) is fixed in the middle of the spindle (66);
the connecting plates (611) are fixed on one side, close to the worm wheel (610), of the circuit breaker body (2), and the number of the connecting plates (611) is two;
the worm (612) is rotatably connected between the two connecting plates (611) through a bearing, and the worm (612) is in meshed connection with the worm wheel (610);
the motor (613), the motor (613) is fixed on one side of a connecting plate (611) at the upper end of the breaker body (2), and one end of the worm (612) close to the motor (613) is fixed with the output end of the motor (613).
3. The molded case circuit breaker with self-locking function according to claim 2, wherein the circuit breaker body (2) is fixed with support bars (8) at equal intervals on one side close to the moving bar (61), a sliding rail (9) is fixed between the two support bars (8), and the moving bar (61) is slidably connected with the two sliding rails (9) through two sliding grooves respectively.
4. The molded case circuit breaker with self-locking function according to claim 2, wherein the closing box (10) is fixed to one side of the circuit breaker body (2) close to the self-locking bar (62), and the self-locking bar (62) is slidably connected with the side wall of the closing box (10) through the second sliding hole.
5. The molded case circuit breaker with self-locking function according to claim 4, wherein a stabilizing sleeve (11) is fixed on one side of the breaker body (2) close to the enclosure (10) and on the inner side of the enclosure (10), and the rotating shaft (66) is rotatably connected with the inner wall of the stabilizing sleeve (11).
6. The molded case circuit breaker with self-locking function according to claim 1, wherein the connection mechanism (7) comprises:
the mounting box (71), the mounting box (71) is fixed on one side of the breaker body (2);
the two buckling blocks (72) are symmetrically connected to the inner wall of the mounting box (71) in a sliding manner;
the second spring (73) is fixed on one side of the buckling block (72), and one end, far away from the buckling block (72), of the second spring (73) is fixed with the inner wall of the mounting box (71);
the locking block (74) is fixed on one side, close to the buckling blocks (72), of the mounting plate (1), and the locking block (74) is clamped with the two buckling blocks (72) respectively;
the T-shaped pressing strip (75) is connected to the inner wall of the mounting box (71) in a sliding mode, and one end of the T-shaped pressing strip (75) penetrates through the side wall of the mounting box (71) and extends to the outer side of the mounting box (71);
the pressing head (76), the said pressing head (76) is fixed on one end of the T-shaped bead (75);
the two pressure columns (77) are symmetrically fixed on one side, away from the pressing head (76), of the T-shaped pressing strip (75);
the driving inclined block (78), the driving inclined block (78) is fixed on one side, close to the pressing column (77), of the locking block (74), and the pressing column (77) is in sliding connection with the surface of the driving inclined block (78).
7. The molded case circuit breaker with the self-locking function according to claim 6, wherein a reset groove (12) is formed in a middle portion of one side of the T-shaped pressing bar (75) close to the pressing head (76), a barrier strip (13) is fixed to one side of an inner wall of the mounting box (71) close to the reset groove (12), a third spring (14) is fixed to one end of the barrier strip (13), and one end of the third spring (14) far away from the barrier strip (13) is fixed to an inner wall of the reset groove (12).
8. The molded case circuit breaker with self-locking function according to claim 7, wherein the surface of the pressing head (76) is equally spaced with first anti-slip patterns (15).
9. The molded case circuit breaker with self-locking function according to claim 1, wherein an inner wall of the insertion hole (5) near one end of the mounting plate (1) is chamfered.
10. The molded case circuit breaker with self-locking function according to claim 1, wherein the surface of the blade (3) is provided with second anti-slip patterns (16) at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110956414.1A CN113675022A (en) | 2021-08-19 | 2021-08-19 | Moulded case circuit breaker with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110956414.1A CN113675022A (en) | 2021-08-19 | 2021-08-19 | Moulded case circuit breaker with self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113675022A true CN113675022A (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110956414.1A Pending CN113675022A (en) | 2021-08-19 | 2021-08-19 | Moulded case circuit breaker with self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113675022A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116844922A (en) * | 2023-06-26 | 2023-10-03 | 国网安徽省电力有限公司巢湖市供电公司 | Safety protection type remote circuit breaker |
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2021
- 2021-08-19 CN CN202110956414.1A patent/CN113675022A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116844922A (en) * | 2023-06-26 | 2023-10-03 | 国网安徽省电力有限公司巢湖市供电公司 | Safety protection type remote circuit breaker |
| CN116844922B (en) * | 2023-06-26 | 2024-06-11 | 国网安徽省电力有限公司巢湖市供电公司 | Safety protection type remote circuit breaker |
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