CN213816033U - Separating brake buffer device for circuit breaker - Google Patents
Separating brake buffer device for circuit breaker Download PDFInfo
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- CN213816033U CN213816033U CN202023135461.XU CN202023135461U CN213816033U CN 213816033 U CN213816033 U CN 213816033U CN 202023135461 U CN202023135461 U CN 202023135461U CN 213816033 U CN213816033 U CN 213816033U
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- hollow cylinder
- circuit breaker
- buffer column
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Abstract
The utility model discloses a tripping buffer device for a circuit breaker, which comprises a bottom plate and a buffer column; a bottom plate: a hollow cylinder is arranged at the center of the upper surface of the hollow cylinder, and the upper end of the outer cambered surface of the hollow cylinder is provided with a buffer port at an equal angle; buffer column: the outer cambered surface of the buffer column is in sliding connection with a sliding hole in the center of the upper surface of the hollow cylinder, an annular plate is arranged on the bottom surface of the buffer column and is positioned inside the hollow cylinder, the upper end of the buffer column extends to the upper side of the hollow cylinder, an adsorption magnetic sheet is arranged at the end of the buffer column, extension rods are arranged at the upper end of the outer cambered surface of the buffer column at equal angles, and the extension rods penetrate through buffer ports at the same side and extend to the outside of the hollow cylinder; this separating brake buffer for circuit breaker can reduce the impact that the separating brake shell fragment produced during circuit breaker work, prolongs the life of circuit breaker, provides cushioning effect for the separating brake shell fragment, can also avoid the separating brake shell fragment to receive buffer spring's reaction force and the rebound resets, guarantees that the work of opening circuit of circuit breaker can normal operating.
Description
Technical Field
The utility model relates to a circuit element technical field specifically is a separating brake buffer for circuit breaker.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The breaker is generally provided with a brake separating buffer, so that the residual energy of a breaker brake separating spring is absorbed through the buffer when the breaker is subjected to brake separating, a protection mechanism is prevented from being subjected to too large impact, and the brake separating bounce is reduced. The existing opening buffer device for the circuit breaker mostly realizes buffer work through a spring, the spring often causes the opening elastic sheet to be stressed again and rebound to reset due to overlarge reaction force generated during buffering after absorbing collision energy, the opening work of the circuit breaker is invalid, and a communicated circuit is broken, so that certain potential safety hazard exists.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a separating brake buffer for circuit breaker, can reduce the impact that the separating brake shell fragment produced during circuit breaker work, prolong the life of circuit breaker, for the separating brake shell fragment provides the cushioning effect, can also avoid the separating brake shell fragment to receive buffer spring's reaction force and the rebound resets, guarantee that the work of opening circuit of circuit breaker can normal operating, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a brake separating buffer device for a circuit breaker comprises a bottom plate and a buffer column;
a bottom plate: a hollow cylinder is arranged at the center of the upper surface of the hollow cylinder, and the upper end of the outer cambered surface of the hollow cylinder is provided with a buffer port at an equal angle;
buffer column: the outer cambered surface of the buffer column is in sliding connection with a sliding hole in the center of the upper surface of the hollow cylinder, an annular plate is arranged on the bottom surface of the buffer column and is positioned inside the hollow cylinder, the upper end of the buffer column extends to the upper side of the hollow cylinder, an adsorption magnetic sheet is arranged at the end of the buffer column, extension rods are arranged at the upper end of the outer cambered surface of the buffer column at equal angles, and the extension rods penetrate through buffer ports at the same side and extend to the outside of the hollow cylinder;
wherein: still include buffer spring, buffer spring sets up between the bottom surface of annular slab and the inside bottom surface of hollow section of thick bamboo, can reduce the impact that the breaker during operation time floodgate shell fragment produced, prolongs the life of circuit breaker, for the separating brake shell fragment provides cushioning effect, can also avoid the separating brake shell fragment to receive buffer spring's reaction force and the rebound resets, guarantees that the work of opening a circuit of circuit breaker can normal operating.
Further, the upper surface four corners symmetry of bottom plate is equipped with the sleeve, and the equal sliding connection in telescopic inside has the loop bar, and the outside end of extension rod coincide with the extrados of loop bar, is equipped with drop spring between the bottom surface of loop bar and the telescopic inside bottom surface, and the upper end of loop bar is equipped with the clamp plate, and the bottom surface of clamp plate and the upper surface contact of extension rod can avoid separating brake shell fragment to receive buffer spring's reaction force and rebound to reset, guarantees that the work of opening circuit of circuit breaker can normal operating.
Furthermore, the outer arc surface of the annular plate is provided with a sealing ring sheet, the outer arc surface of the sealing ring sheet is connected with the inner arc wall of the hollow cylinder in a sliding mode, so that the air at the bottom end inside the hollow cylinder can be prevented from being discharged upwards, and the buffering effect is prevented from being influenced by overlarge air pressure.
Furthermore, the equal angle in extrados bottom of hollow cylinder is equipped with the pressure release hole, can prevent that the inside bottom of hollow cylinder from forming the piston cavity, and the reaction force that receives when avoiding the bumping post rebound is too big.
Further, the lateral surface middle part of bottom plate all is equipped with the sheet rubber, and the upper surface center department of sheet rubber all is equipped with the mounting hole, can fix top mechanism to the protection circuit breaker main part can not receive the collision influence of separating brake shell fragment.
Compared with the prior art, the beneficial effects of the utility model are that: the opening buffer device for the circuit breaker has the following advantages:
1. use the bolt to pass through the mounting hole and be connected this buffer with the inside installation site of circuit breaker, the realization is fixed to top mechanism, the rubber chip can protect the circuit breaker main part can not receive the collision influence of separating brake shell fragment, when the circuit breaker is using, separating brake shell fragment and absorption magnetic sheet bump, because the slide opening sliding connection of buffer post and hollow section of thick bamboo upper surface center department, can make the buffer post slide down, buffer spring takes place elastic deformation this moment, absorb the impact that the buffer post transmitted, thereby reduce the impact that the circuit breaker during operation separating brake shell fragment produced, the life of extension circuit breaker, at the in-process that the buffer post moved down, the seal ring piece can prevent that the air of the inside bottom of hollow section of thick bamboo from upwards discharging, avoid the too big buffering effect that influences of atmospheric pressure.
2. Can drive the loop bar downstream when buffering post lapse, loop bar and clamp plate receive the effect of drop spring to get into telescopic inside this moment, when buffer spring warp to a certain extent, buffer spring can produce an ascending reaction force, promote the buffering post and shift up, the extension rod receives the ascending jacking of buffer spring's effect this moment, the clamp plate receives the effect of drop spring to compress tightly downwards, two effort offset each other, can avoid separating brake shell fragment to receive buffer spring's reaction force and rebound to reset, guarantee that the work of opening circuit of circuit breaker can normal operating, the pressure release hole can prevent the inside bottom formation piston cavity of hollow cylinder, the reaction force that receives when avoiding buffering post rebound is too big.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is the schematic view of the internal cutting structure of the utility model.
In the figure: 1 bottom plate, 2 hollow section of thick bamboos, 3 buffering mouths, 4 cushion posts, 5 annular plates, 6 adsorb magnetic sheet, 7 buffer spring, 8 extension rod, 9 sleeves, 10 loop bars, 11 pulldown spring, 12 clamp plates, 13 sealed ring pieces, 14 pressure release holes, 15 rubber pieces, 16 mounting holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a tripping buffer device for a circuit breaker comprises a bottom plate 1 and a buffer column 4;
bottom plate 1: a hollow cylinder 2 is arranged at the center of the upper surface of the hollow cylinder, and a buffer port 3 is arranged at the upper end of the outer cambered surface of the hollow cylinder 2 at an equal angle;
the buffer column 4: the outer cambered surface of the buffer column is connected with a sliding hole in the center of the upper surface of the hollow cylinder 2 in a sliding manner, the bottom surface of the buffer column 4 is provided with an annular plate 5, the annular plate 5 is positioned inside the hollow cylinder 2, the upper end of the buffer column 4 extends to the upper side of the hollow cylinder 2, the end of the buffer column 4 is provided with an adsorption magnetic sheet 6, the upper end of the outer cambered surface of the buffer column 4 is provided with extension rods 8 at equal angles, and the extension rods 8 penetrate through the buffer ports 3 at the same side and extend to the outside of the hollow cylinder 2;
wherein: still include buffer spring 7, buffer spring 7 sets up between the bottom surface of annular slab 5 and the inside bottom surface of hollow section of thick bamboo 2, when the circuit breaker is using, separating brake shell fragment and absorption magnetic sheet 6 bump, because the slide opening sliding connection of buffer post 4 and 2 upper surface centers of hollow section of thick bamboo department, can make buffer post 4 slide down, buffer spring 7 takes place elastic deformation this moment, absorb the impact that buffer post 4 transmitted down, thereby reduce the impact that the brake shell fragment produced during circuit breaker work, the life of extension circuit breaker.
Wherein: the four corners of the upper surface of the bottom plate 1 are symmetrically provided with sleeves 9, sleeves 10 are connected inside the sleeves 9 in a sliding manner, the outer ends of the extension rods 8 are matched with the outer arc surfaces of the sleeves 10, pull-down springs 11 are arranged between the bottom surfaces of the sleeves 10 and the inner bottom surface of the sleeves 9, pressing plates 12 are arranged at the upper ends of the sleeves 10, the bottom surfaces of the pressing plates 12 are in contact with the upper surfaces of the extension rods 8, the sleeve rods 10 are driven to move downwards when the buffer columns 4 slide downwards, the sleeve rods 10 and the pressing plates 12 enter the sleeves 9 under the action of the pull-down springs 11, when the buffer springs 7 deform to a certain degree, the buffer springs 7 generate an upward reaction force to push the buffer columns 4 to move upwards, the extension rods 8 are lifted upwards under the action of the buffer springs 7, the pressing plates 12 are pressed downwards under the action of the pull-down springs 11, the two reaction forces are mutually offset, and the situation that the opening spring pieces are rebounded and reset due to the reaction force of the buffer springs 7 can be avoided, the normal operation of the breaking work of the breaker is ensured.
Wherein: the extrados of annular slab 5 is equipped with sealing ring piece 13, and sealing ring piece 13's extrados and the interior arc wall sliding connection of hollow section of thick bamboo 2 move down at buffer column 4 in-process, and sealing ring piece 13 can prevent that the air of the inside bottom of hollow section of thick bamboo 2 from upwards discharging, avoids the too big influence buffering effect of atmospheric pressure.
Wherein: the equal angle in extrados bottom of hollow cylinder 2 is equipped with pressure release hole 14, and pressure release hole 14 can prevent that the inside bottom of hollow cylinder 2 from forming the piston cavity, and the reaction force that receives when avoiding the buffer column 4 to move up is too big.
Wherein: the lateral surface middle part of bottom plate 1 all is equipped with sheet rubber 15, and the upper surface center department of sheet rubber 15 all is equipped with mounting hole 16, uses the bolt to be connected this buffer with the inside installation position of circuit breaker through mounting hole 16, realizes the fixed of top mechanism, and sheet rubber 15 can protect the circuit breaker main part can not receive the collision influence of separating brake shell fragment.
When in use: the buffer device is connected with the installation part inside the breaker through the installation hole 16 by using a bolt to realize the fixation of the upper mechanism, the rubber sheet 15 can protect the breaker main body from being impacted by the opening shrapnel, when the breaker is used, the opening shrapnel collides with the magnetic adsorption sheet 6, because the buffer column 4 is in sliding connection with the slide hole at the center of the upper surface of the hollow cylinder 2, the buffer column 4 can slide downwards, at the moment, the buffer spring 7 generates elastic deformation to absorb the impact force transmitted by the buffer column 4, thereby reducing the impact force generated by the opening shrapnel during the work of the breaker and prolonging the service life of the breaker, in the process of moving the buffer column 4 downwards, the sealing ring sheet 13 can prevent the air at the bottom end inside the hollow cylinder 2 from being discharged upwards, avoiding the buffer effect from being influenced by overlarge air pressure, and can drive the loop bar 10 to move downwards when the buffer column 4 slides downwards, loop bar 10 and clamp plate 12 receive the inside that pull-down spring 11's effect can get into sleeve 9 this moment, when buffer spring 7 warp to a certain extent, buffer spring 7 can produce an ascending reaction force, promote buffering post 4 and move up, the extension rod 8 receives the ascending jacking of buffer spring 7's effect this moment, clamp plate 12 is compressed tightly downwards by pull-down spring 11's effect, two effort offset each other, can avoid separating brake shell fragment to receive buffer spring 7's reaction force and rebound to reset, guarantee that the circuit breaker's the circuit break work can normal operating, pressure release hole 14 can prevent the inside bottom formation piston cavity of hollow cylinder 2, the reaction force that receives when avoiding buffering post 4 to move up is too big.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a separating brake buffer for circuit breaker which characterized in that: comprises a bottom plate (1) and a buffer column (4);
base plate (1): a hollow cylinder (2) is arranged at the center of the upper surface of the hollow cylinder, and a buffer opening (3) is arranged at the upper end of the outer cambered surface of the hollow cylinder (2) at an equal angle;
buffer column (4): the outer cambered surface of the buffer column is in sliding connection with a sliding hole in the center of the upper surface of the hollow cylinder (2), an annular plate (5) is arranged on the bottom surface of the buffer column (4), the annular plate (5) is located inside the hollow cylinder (2), the upper end of the buffer column (4) extends to the upper side of the hollow cylinder (2), an adsorption magnetic sheet (6) is arranged at the end of the buffer column, extension rods (8) are arranged at equal angles at the upper end of the outer cambered surface of the buffer column (4), and the extension rods (8) penetrate through the buffer ports (3) on the same side and extend to the outside of the hollow cylinder (2);
wherein: the hollow cylinder is characterized by further comprising a buffer spring (7), wherein the buffer spring (7) is arranged between the bottom surface of the annular plate (5) and the inner bottom surface of the hollow cylinder (2).
2. The opening buffer device for the circuit breaker according to claim 1, wherein: the upper surface four corners symmetry of bottom plate (1) is equipped with sleeve (9), and the equal sliding connection in inside of sleeve (9) has loop bar (10), and the outside end of extension bar (8) coincide with the outer cambered surface of loop bar (10), is equipped with pull-down spring (11) between the bottom surface of loop bar (10) and the inside bottom surface of sleeve (9), and the upper end of loop bar (10) is equipped with clamp plate (12), the bottom surface of clamp plate (12) and the upper surface contact of extension bar (8).
3. The opening buffer device for the circuit breaker according to claim 1, wherein: the outer arc surface of the annular plate (5) is provided with a sealing ring sheet (13), and the outer arc surface of the sealing ring sheet (13) is in sliding connection with the inner arc wall of the hollow cylinder (2).
4. The opening buffer device for the circuit breaker according to claim 1, wherein: the bottom end of the outer cambered surface of the hollow cylinder (2) is provided with pressure relief holes (14) at equal angles.
5. The opening buffer device for the circuit breaker according to claim 1, wherein: the middle of the outer side face of the bottom plate (1) is provided with a rubber sheet (15), and the center of the upper surface of the rubber sheet (15) is provided with a mounting hole (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023135461.XU CN213816033U (en) | 2020-12-23 | 2020-12-23 | Separating brake buffer device for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023135461.XU CN213816033U (en) | 2020-12-23 | 2020-12-23 | Separating brake buffer device for circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN213816033U true CN213816033U (en) | 2021-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023135461.XU Active CN213816033U (en) | 2020-12-23 | 2020-12-23 | Separating brake buffer device for circuit breaker |
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| CN (1) | CN213816033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117650018A (en) * | 2024-01-26 | 2024-03-05 | 东升源(广东)智能电气有限公司 | Buffer assembly and permanent magnet mechanism |
-
2020
- 2020-12-23 CN CN202023135461.XU patent/CN213816033U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117650018A (en) * | 2024-01-26 | 2024-03-05 | 东升源(广东)智能电气有限公司 | Buffer assembly and permanent magnet mechanism |
| CN117650018B (en) * | 2024-01-26 | 2024-03-29 | 东升源(广东)智能电气有限公司 | Buffer assembly and permanent magnet mechanism |
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