CN220821452U - Tripping mechanism of circuit breaker - Google Patents
Tripping mechanism of circuit breaker Download PDFInfo
- Publication number
- CN220821452U CN220821452U CN202322633409.4U CN202322633409U CN220821452U CN 220821452 U CN220821452 U CN 220821452U CN 202322633409 U CN202322633409 U CN 202322633409U CN 220821452 U CN220821452 U CN 220821452U
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- shell
- circuit breaker
- rod
- front side
- casing
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- 230000007246 mechanism Effects 0.000 title claims abstract description 14
- 238000004146 energy storage Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of circuit breakers, and particularly relates to a tripping mechanism of a circuit breaker, which comprises a shell, wherein a front cover plate is arranged on the front side of the shell, the front cover plate seals the front side of the shell, a control shaft is arranged on the front side of the shell through a bearing, a control rod is arranged on the surface of the control shaft, the control rod penetrates through the outer surface of the front cover plate, a connecting plate is arranged on one side of the control shaft through a pin shaft, a rocker is arranged in the shell through the pin shaft, one end of the rocker is hooked at the end part of the connecting plate, which is away from the control shaft, a tension spring is connected to the surface of one side of the rocker, which is away from the connecting plate, an extension plate is symmetrically arranged on the front side of the shell, a link rod is pushed by a bolt to drive a toggle rod to rotate so as to push a movable rod to slide in a chute, the position of the end part of the tension spring is adjusted, the pulling energy storage adjustment of the tension spring is realized, the pulling force of the tension spring is ensured, and the use safety of the circuit breaker is improved.
Description
Technical Field
The utility model belongs to the technical field of circuit breakers, and particularly relates to a tripping mechanism of a circuit breaker.
Background
The circuit breaker can automatically cut off the current after the current exceeds the trip setting, and the circuit breaker is provided with a trip mechanism which generally comprises a traction rod, a bimetallic strip, an armature and the like, and when the passing current is larger than the rated current and smaller than a certain preset current standard range (overload trip mode), the bimetallic strip is heated and bent and pushes the traction rod to realize trip opening; when the electric line is short-circuited, the current can be instantaneously increased to reach the standard range, a magnetic field is generated, and the armature is attracted to drive the traction rod to act, so that the trip opening is realized.
The existing breaker realizes the energy storage of the storage capacity through an internal tension spring when closing the switch and keeps in a state of pulling the energy storage, when an internal bimetallic strip deforms, the energy storage state is released, the switch-off and the switch-off are realized through the tension spring, but the tension of the tension spring can change in the long-time use process, looseness is generated, the circuit breaker cannot react quickly when short circuit occurs, and then a short circuit accident is caused.
Disclosure of utility model
Aiming at the problems existing in the prior art, the utility model aims to provide a tripping mechanism of a circuit breaker, which can realize the adjustment of the tension of an internal energy storage tension spring, ensure the opening force and further ensure the use safety.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a tripping device of circuit breaker, includes the casing, the front shroud is installed to the casing front side, the front shroud seals the casing front side, the control axle is installed through the bearing to the casing front side, the control axle surface is provided with the control lever, the control lever runs through the front shroud surface, the connecting plate is installed through the round pin axle to control axle one side, the rocker is installed through the round pin axle to the casing inside, rocker one end is colluded the tip that deviates from the control axle at the connecting plate, the rocker deviates from one side surface connection of connecting plate has the extension spring, casing front side symmetry is provided with the extension board, two the spout has been seted up to the one side symmetry that the extension board is close to each other, the spout is arranged in on the extension line of extension spring, two slidable mounting has the movable lever between the spout, the one end that the extension spring deviates from the rocker is on the hook movable lever surface.
Further, a shaft sleeve is arranged between the two extension plates through a bearing, a poking rod is arranged on one side of the surface of the shaft sleeve, and a linkage rod is arranged on the other side of the shaft sleeve.
Further, the poking rod structure is U-shaped, the surface of the poking rod is contacted with the surface of one side of the movable rod, which is close to the tension spring, and the tension spring hook is arranged on the inner side of the U-shaped poking rod.
Further, the bolt is screwed on the front surface of the shell, the bolt penetrates through the front main body of the shell, a ball is mounted on one end surface of the bolt, and the ball is in contact with one side surface of the linkage rod.
Further, one end of the bolt, which is away from the ball, is provided with a screw head, a counter bore is formed in the front side surface of the front cover plate, and the screw head is arranged at the inner side of the counter bore.
Further, the rear side of the shell is provided with a mounting groove, and the upper surface and the lower surface of the shell are uniformly provided with connecting grooves.
Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a tripping mechanism of a circuit breaker, which is characterized in that a linkage rod is pushed by a bolt to drive a toggle rod to rotate so as to push a movable rod to slide in a chute, and then the position of the end part of a tension spring is adjusted, so that the pulling energy storage adjustment of the tension spring is realized, the tension force of the tension spring is ensured, the force during opening the circuit breaker is ensured, and the use safety of the circuit breaker is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
fig. 3 is an enlarged view of the area a of fig. 2 according to the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
1. A housing; 2. a mounting groove; 3. a connecting groove; 4. a front cover plate; 5. a control shaft; 6. a control lever; 7. a connecting plate; 8. a seesaw; 9. a tension spring; 10. an extension plate; 11. a chute; 12. a movable rod; 13. a shaft sleeve; 14. a toggle rod; 15. a linkage rod; 16. a bolt; 17. a screw head; 18. countersink; 19. and (3) rolling balls.
Detailed Description
The present utility model will be specifically described with reference to examples below in order to make the objects and advantages of the present utility model more apparent. It should be understood that the following text is intended to describe only one or more specific embodiments of the utility model and does not limit the scope of the utility model strictly as claimed.
Referring to fig. 1, a tripping device of a circuit breaker includes a casing 1, a front cover plate 4 is mounted on the front side of the casing 1 through bolts, the front cover plate 4 seals the front side of the casing 1, a control shaft 5 is mounted on the front side of the casing 1 through bearings, a control rod 6 is arranged on the surface of the control shaft 5, the control rod 6 penetrates through the outer surface of the front cover plate 4, the control rod 6 is inclined upwards during closing, the control rod 6 is inclined downwards during opening, a connecting plate 7 is mounted on one side of the control shaft 5 through a pin shaft, the connecting plate 7 is made of plastic materials, a rocker 8 is mounted inside the casing 1 through a pin shaft, the rocker 8 is in an electrified state, one end of the rocker 8 is hooked at the end of the connecting plate 7, which is away from the end of the control shaft 5, a tension spring 9 is connected on one side surface of the rocker 8, which is away from the connecting plate 7, and the tension spring 9 is in a pulling energy storage state during closing and maintains the energy storage state through an internal mechanism.
Referring to fig. 2 and 3, the front side of the housing 1 is symmetrically provided with extension boards 10, one side of each extension board 10, which is close to each other, is symmetrically provided with sliding grooves 11, the sliding grooves 11 are arranged on extension lines of the tension springs 9 to ensure that the pulling angle of the tension springs 9 is stable when the movable rod 12 is adjusted, the movable rod 12 is slidably mounted between the two sliding grooves 11, one end of the tension springs 9, which is away from the rocker 8, is hooked on the surface of the movable rod 12, and then the movable rod 12 is adjusted to pull the tension springs 9, so that adjustment is realized.
Wherein, install axle sleeve 13 through the bearing between two extension boards 10, axle sleeve 13 surface one side is provided with carrier bar 15, and axle sleeve 13 opposite side is provided with carrier bar 15, axle sleeve 13, carrier bar 15 and toggle lever 14 are with an entirety, can rotate in step, the toggle lever 14 structure is the U type, toggle lever 14 surface contacts with the movable rod 12 one side surface that is close to extension spring 9, extension spring 9 couple is arranged in U type toggle lever 14 inboard to guarantee the stability to movable rod 12 promotion.
Referring to fig. 3, a bolt 16 is screwed on the front surface of the housing 1, the bolt 16 penetrates through the front body of the housing 1, a ball 19 is mounted on one end surface of the bolt 16, the ball 19 contacts with one side surface of the linkage rod 15, friction force when the ball 19 contacts with the linkage rod 15 is reduced, the ball 19 can be replaced by a ball head, a screw head 17 is arranged at one end of the bolt 16, which is away from the ball 19, a counter bore 18 is formed in the front surface of the front cover plate 4, and the screw head 17 is arranged at the inner side of the counter bore 18 to provide a movable space for the screw head 17.
Referring to fig. 2, a mounting groove 2 is formed on the rear side of the housing 1, and connecting grooves 3 are uniformly formed on the upper and lower surfaces of the housing 1, so that the circuit breaker is integrally mounted.
The working principle of the utility model is as follows: the shell 1 is fixed with the mounting rail through the mounting groove 2, and pass in and out the electric wire through the screw fixation in the upper and lower connecting groove 3 inboard, when the circuit breaker is in the open state, extension spring 9 is in pulling and holds the power state, control lever 6 tip slope upwards, inside is in holding the power fixed state, when the circuit is in the short circuit, inside bimetallic strip warp, contact and extension spring 9 spacing, owing to the pulling of extension spring 9 holds the power, can drive wane 8 skew, control lever 6 downward sloping, the circuit disconnection, the pulling of adjustment extension spring 9 can be through outside rotation spiral shell head 17, then drive bolt 16, promote the trace 15 backward through the removal of ball 19, then drive toggle lever 14 through axle sleeve 13 and rotate clockwise, in order to stir movable lever 12 and take place to remove along the orbit of spout 11, then adjustable extension spring 9's pulling dynamics, because bolt 16 is screw-thread fit, in order to guarantee stability after the rotation.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (6)
1. The tripping mechanism of the circuit breaker comprises a shell (1), and is characterized in that: the utility model discloses a motor vehicle control device, including casing (1), apron (4), control shaft (5) are installed through the bearing to casing (1) front side, control shaft (5) surface is provided with control lever (6) in casing (1) front side, control shaft (5) one side is installed connecting plate (7) through the round pin axle, install wane (8) through the round pin axle in casing (1) inside, wane (8) one end is colluded in the tip of connecting plate (7) deviating from control shaft (5), one side surface connection of wane (8) deviating from connecting plate (7) has extension spring (9), casing (1) front side symmetry is provided with extension board (10), and two one side symmetry that extension board (10) are close to each other has seted up spout (11), spout (11) are arranged in the extension line of extension spring (9), two sliding mounting has movable rod (12) between spout (11), extension board (8) one end that wane (8) deviate from is at movable rod (12).
2. The trip mechanism of a circuit breaker of claim 1, wherein: a shaft sleeve (13) is arranged between the two extension plates (10) through a bearing, a toggle rod (14) is arranged on one side of the surface of the shaft sleeve (13), and a linkage rod (15) is arranged on the other side of the shaft sleeve (13).
3. The trip mechanism of a circuit breaker of claim 2, wherein: the structure of the poking rod (14) is U-shaped, the surface of the poking rod (14) is contacted with the surface of one side of the movable rod (12) close to the tension spring (9), and the tension spring (9) is hooked on the inner side of the U-shaped poking rod (14).
4. A trip mechanism for a circuit breaker according to claim 3, wherein: the front side surface of the shell (1) is screwed with a bolt (16), the bolt (16) penetrates through the front side main body of the shell (1), one end surface of the bolt (16) is provided with a ball (19), and the ball (19) is contacted with one side surface of the linkage rod (15).
5. The trip mechanism of a circuit breaker of claim 4, wherein: one end of the bolt (16) deviating from the ball (19) is provided with a screw head (17), a counter bore (18) is formed in the front side surface of the front cover plate (4), and the screw head (17) is arranged on the inner side of the counter bore (18).
6. The trip mechanism of a circuit breaker of claim 1, wherein: the rear side of the shell (1) is provided with a mounting groove (2), and the upper surface and the lower surface of the shell (1) are uniformly provided with connecting grooves (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322633409.4U CN220821452U (en) | 2023-09-27 | 2023-09-27 | Tripping mechanism of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322633409.4U CN220821452U (en) | 2023-09-27 | 2023-09-27 | Tripping mechanism of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220821452U true CN220821452U (en) | 2024-04-19 |
Family
ID=90698298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322633409.4U Active CN220821452U (en) | 2023-09-27 | 2023-09-27 | Tripping mechanism of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220821452U (en) |
-
2023
- 2023-09-27 CN CN202322633409.4U patent/CN220821452U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |