CN110957189A - Locking mechanism for circuit breaker - Google Patents
Locking mechanism for circuit breaker Download PDFInfo
- Publication number
- CN110957189A CN110957189A CN201811185062.9A CN201811185062A CN110957189A CN 110957189 A CN110957189 A CN 110957189A CN 201811185062 A CN201811185062 A CN 201811185062A CN 110957189 A CN110957189 A CN 110957189A
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- China
- Prior art keywords
- locking
- circuit breaker
- axle
- mounting panel
- plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
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- Breakers (AREA)
Abstract
A locking mechanism for a circuit breaker, characterized in that: it includes curb plate (1), be equipped with locking axle (5) on curb plate (1), lockplate (6) dress is in can follow on locking axle (5) the axial translation of locking axle (5), still suit elastic component (7) on locking axle (5), elastic component (7) one end is supporting locking axle (5), and the other end supports lockplate (6), be provided with locking lug (601) on lockplate (6), lockplate (6) are in follow on locking axle (5) the axial translation in-process of locking axle (5), locking lug (601) can realize the locking and the unblock to the circuit breaker annex with locking structure (A) cooperation. The locking mechanism can fix circuit breaker accessories which are installed in the vertical direction and can also fix circuit breaker accessories which are installed in the horizontal direction; the breaker accessory can be unlocked without any auxiliary tool, and the installation stability of the breaker accessory is improved.
Description
Technical Field
The invention belongs to the technical field of mechanical installation, and particularly relates to a locking mechanism which is particularly suitable for installation and locking of accessories of a circuit breaker.
Background
Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their range of use. The low-voltage circuit breaker is also called an automatic switch, commonly called an air switch and also called a low-voltage circuit breaker, and is an electric appliance which not only has the function of a manual switch, but also can automatically perform voltage loss, undervoltage, overload and short-circuit protection. It can be used for distributing electric energy, starting asynchronous motor infrequently, protecting power supply circuit and motor, etc., when they are seriously overloaded or short-circuited or under-voltage, etc. faults occur, it can automatically cut off circuit, its function is equivalent to the combination of fuse type switch and over-and under-heat relay, etc., and after breaking fault current, it does not need to change parts, so that it has been extensively used.
The fault tripping execution unit of the traditional universal circuit breaker is fixed on a switch body base, the operation mechanism of the circuit breaker is also fixed on the body base, and the fault tripping execution unit actuates the operation mechanism to carry out tripping operation when the switch needs to carry out fault tripping. The traditional installation mode needs to be realized by dismounting the circuit breaker accessory by a tool, is complex to operate, can only fix the circuit breaker accessory installed in one direction, and cannot fix the circuit breaker accessories installed in different directions; and the fixing mode by using the screw is unreliable, the looseness is easy, and the number and the types of the circuit breaker accessories which can be fixed are less.
Disclosure of Invention
The invention aims to solve the technical defects that the existing breaker accessory is installed by using a screw, the breaker accessory needs to be disassembled and assembled by a tool, the operation is complex, the breaker accessory installed in one direction can only be fixed, the breaker accessories installed in different directions cannot be fixed, and the breaker accessory is easy to loosen.
Technical scheme
In order to achieve the above object, a locking mechanism for a circuit breaker according to the present invention includes: it includes the curb plate, be equipped with the locking axle on the curb plate, the lockplate dress is in can follow on the locking axle the axial translation of locking axle, still the cover is equipped with the elastic component on the locking axle, elastic component one end supports the locking axle, and the other end supports the lockplate, be provided with the locking lug on the lockplate, the lockplate is in follow on the locking axle the axial translation in-process of locking axle, the locking lug can realize the locking and the unblock to the circuit breaker annex with the cooperation of locking structure.
Further, locking structure includes the installation axle, the installation axle dress is in on the curb plate, go up mounting panel one end dress and be in the installation epaxial can be around the installation rotation of axle, lower mounting panel one end dress is in the installation epaxial can be around the installation rotation of axle, the locking plate is in the epaxial edge of locking the axial translation in-process of axle, the locking lug can go up the last locking groove of mounting panel with the lower locking inslot back and forth movement of lower mounting panel is realized right go up the mounting panel with thereby the locking and the unblock of lower mounting panel are accomplished the locking and the unblock to the circuit breaker annex.
Further, the locking shaft comprises a head portion and a shaft portion, the head portion is disc-shaped and can limit the moving distance between the locking plate and the elastic piece, and the shaft portion is a polygonal cylinder and enables the locking plate to only translate along the axial direction of the locking shaft.
Furthermore, the non-mounting end of the upper mounting plate extends out of the first hook plate and can be wrapped by the upper breaker accessory, a waist circular hole is formed in the middle of the upper mounting plate, and the waist circular hole is arranged in the annular groove of the mounting shaft.
Further, the non-installation end of lower mounting panel stretches out and colludes board two and can half wrap circuit breaker annex down, there is the round hole in the middle part of lower mounting panel, the round hole dress is in the ring channel of installation axle.
Further, a manual part is arranged on the locking plate.
Furthermore, locking structure includes locking groove one on last circuit breaker annex shell extension portion and the locking groove two on the circuit breaker annex shell extension portion down, the locking plate is in follow on the locking shaft the axial translation in-process of locking shaft, the locking lug can locking groove one and locking inslot back and forth movement realize the locking and the unblock to last circuit breaker annex and lower circuit breaker annex.
Advantageous effects
The locking mechanism for the circuit breaker can fix circuit breaker accessories which are installed in the vertical direction and can also fix circuit breaker accessories which are installed in the horizontal direction; the breaker accessory can be unlocked without any auxiliary tool, and the breaker accessory can be very conveniently disassembled and assembled; meanwhile, the strength and reliability of the structure are improved by locking different circuit breaker accessories, and the whole locking mechanism locks the circuit breaker accessories by using the locking structure, so that the installation stability of the circuit breaker accessories is improved.
Drawings
FIG. 1a is a first schematic structural view of a locked state in embodiment 1 of the present invention;
FIG. 1b is a second schematic structural view of embodiment 1 of the present invention in a locked state;
FIG. 1c is a third schematic structural view of the locking state of embodiment 1 of the present invention;
fig. 2a is a first structural schematic diagram of an unlocked state in embodiment 1 of the present invention;
fig. 2b is a structural schematic diagram of an unlocked state in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of an upper mounting plate in embodiment 1 of the present invention.
Fig. 4 is a schematic structural view of a lower mounting plate in embodiment 1 of the present invention.
Fig. 5 is a schematic structural view of a locking plate in embodiment 1 of the present invention.
Fig. 6 is a schematic structural view of a lock shaft in embodiment 1 of the present invention.
Fig. 7 is a schematic structural view of the displacement of the locking plate in embodiment 1 of the present invention.
Fig. 8 is a structural view of a mounting shaft in embodiment 1 of the present invention.
Fig. 9a is a schematic structural view of an upper circuit breaker accessory case according to embodiment 2 of the present invention;
fig. 9b is a schematic structural view of a lower circuit breaker accessory case in embodiment 2 of the present invention;
FIG. 9c is a schematic structural view showing embodiment 2 of the present invention in a locked state;
fig. 9d is a schematic structural diagram of embodiment 2 of the present invention in an unlocked state;
Detailed Description
The invention is further explained below with reference to the figures and examples.
Example 1
As shown in fig. 1a, 1b and 1c, a locking mechanism for circuit breaker includes a side plate 1, a locking shaft 5 is installed on the side plate 1, a locking plate 6 is installed on the locking shaft 5 and can move along the axial direction of the locking shaft 5, an elastic member 7 is further sleeved on the locking shaft 5, one end of the elastic member 7 abuts against the locking shaft 5, the other end of the elastic member abuts against the locking plate 6, a locking lug 601 is arranged on the locking plate 6, the locking plate 6 is arranged on the locking shaft 5 and can move along the axial direction of the locking shaft 5 in the process of moving along the axial direction, and the locking lug 601 can be matched with a locking structure a to lock and unlock accessories of the circuit breaker. The circuit breaker accessories are conventionally referred to as a trip unit, a breaking lock, a counter, a closing ready output signal device, and the like.
Specifically, the locking structure a in this embodiment includes a mounting shaft 2, the mounting shaft 2 is mounted on the side plate 1, one end of the upper mounting plate 3 is mounted in an annular groove 201 on the mounting shaft 2 as shown in fig. 8 and can rotate around the mounting shaft 2, and the other end of the upper mounting plate extends out of a hook plate 302 and can half-wrap the upper breaker accessory 8. Lower mounting panel 4 one end dress is in can rotate around installation axle 2 in the ring channel 201 on installation axle 2, the other end stretches out and colludes two 402 boards and can half wrap circuit breaker annex 9 down. As shown in fig. 6, the locking shaft 5 includes a head portion 501 and a shaft portion 502, the shaft portion 502 is a polygonal cylindrical shaft, so that the locking plate 6 translates only in the axial direction of the locking shaft 5, one end of the elastic member 7 abuts against the head portion 501 of the locking shaft 5, and the head portion 501 is a disk shape and can limit the moving distance between the locking plate 6 and the elastic member 7. In the process that the locking plate 6 translates on the locking shaft 5 along the axial direction of the locking shaft 5, the locking lug 601 can move back and forth in the upper locking groove 301 of the upper mounting plate 3 and the lower locking groove 401 of the lower mounting plate 4 to lock and unlock the upper mounting plate 3 and the lower mounting plate 4.
The working process of this embodiment is that the locking plate 6 is mounted on the locking shaft 5, as shown in fig. 7, and the elastic member 7 is limited by the locking plate 6 to the maximum length n that can be extended, not including the distance of the spring parallel to the coil.
As shown in fig. 1a, 1B and 1c, when the locking mechanism is in a locking state, the upper mounting plate 3 is half wrapped around the vertically mounted upper breaker attachment 8, which is itself mounted in the annular groove 201 on the mounting shaft 2 by means of the waist circular hole 303 provided in the middle, as shown in fig. 3 and 5, the first limit feature a of the upper mounting plate 3 cooperates with the fourth limit portion G of the locking plate 6, and the third feature B of the upper mounting plate 3 cooperates with the second limit portion F of the locking plate 6 to limit the rotational displacement of the upper mounting plate 3 about the mounting shaft 2; the lower mounting plate 4 is half wrapped around the horizontally mounted breaker attachment 9, and is itself mounted in the annular groove 201 on the mounting shaft 2 by means of the circular hole 403 provided in the middle, as shown in fig. 4 and 5, the position-limiting feature five D of the lower mounting plate 4 cooperates with the position-limiting portion four G of the locking plate 6, and the feature six E of the lower mounting plate 4 cooperates with the position-limiting portion two F of the locking plate 6, so as to limit the displacement of the lower mounting plate 4 in rotation about the mounting shaft 2. The upper mounting plate 3 and the lower mounting plate 4 are fixed in position, so that the position of the accessory of the circuit breaker is also fixed;
when the locking mechanism is in the unlocked state, as shown in fig. 2a, the manual portion 602 on the locking plate 6 is pulled, the locking plate 6 moves a distance along the locking shaft 5, and the yielding feature C of the upper mounting plate 3 is matched with the locking shaft 5 to unlock the upper mounting plate 3, so that the upper mounting plate 3 is allowed to rotate a certain displacement around the mounting shaft 2, and the vertically mounted upper circuit breaker accessory 8 can be conveniently taken out; as shown in fig. 2b, the locking plate 6 moves a further distance along the locking shaft 5, and the five-D position-limiting feature of the lower mounting plate 4 cooperates with the locking shaft 5 to unlock the lower mounting plate 4, allowing the lower mounting plate 4 to rotate a certain displacement around the mounting shaft 2, facilitating the removal of the horizontally mounted lower circuit breaker accessories 9, and the upper mounting plate 3 and the lower mounting plate 4 to change their positions, facilitating the removal of the circuit breaker accessories.
Example 2
As shown in fig. 9a and 9b, the present embodiment further provides a locking mechanism for a circuit breaker, where the locking structure a includes a first locking groove 801 on the housing extension part of the upper circuit breaker accessory 8 and a second locking groove 901 on the housing extension part of the lower circuit breaker accessory 9, and during the axial translation of the locking plate 6 on the locking shaft 5 along the locking shaft 5, the locking protrusion 601 can move back and forth in the first locking groove 801 and the second locking groove 901 to lock and unlock the upper circuit breaker accessory 8 and the lower circuit breaker accessory 9. Other structures in this embodiment are the same as those in the first embodiment.
As shown in fig. 9c, when the locking mechanism is in the locked state, a locking groove first 801 on the extended portion of the case of the upper circuit breaker accessory 8 and a locking groove second 901 on the extended portion of the case of the lower circuit breaker accessory 9 are positioned on the locking plate 6, the locking groove first 801 is engaged with the limit feature F, G of the locking plate 6, and the locking groove second 901 is engaged with the limit feature F, G of the locking plate 6, so as to limit the displacement of the upper circuit breaker accessory 8 and the lower circuit breaker accessory 9;
when the locking mechanism is in the unlocked state, as shown in fig. 9d, the locking plate 6 is moved a distance along the locking shaft 5 by pulling the manual portion 602 on the locking plate 6, and the upper breaker attachment 8 and the lower breaker attachment 9 are rotated and removed.
The structures, ratios, sizes, quantities, and the like shown in the drawings of the embodiments of the present invention are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance. In addition, the terms such as "upper", "lower", "left", "right", "middle", "clockwise" and "counterclockwise" used in the present specification are for clarity of description only, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not limited by the technical contents of the substantial changes, but also considered to be the scope of the present invention.
Claims (7)
1. A locking mechanism for a circuit breaker, characterized in that: it includes curb plate (1), be equipped with locking axle (5) on curb plate (1), lockplate (6) dress is in can follow on locking axle (5) the axial translation of locking axle (5), still suit elastic component (7) on locking axle (5), elastic component (7) one end is supporting locking axle (5), and the other end supports lockplate (6), be provided with locking lug (601) on lockplate (6), lockplate (6) are in follow on locking axle (5) the axial translation in-process of locking axle (5), locking lug (601) can realize the locking and the unblock to the circuit breaker annex with locking structure (A) cooperation.
2. The locking mechanism for a circuit breaker of claim 1, wherein: locking structure (A) is including installation axle (2), installation axle (2) dress is in on curb plate (1), go up mounting panel (3) one end dress and be in can rotate around installation axle (2) on installation axle (2), lower mounting panel (4) one end dress can rotate around installation axle (2) on installation axle (2), locking plate (6) are in follow on locking axle (5) the axial translation in-process of locking axle (5), locking lug (601) can go up locking groove (301) of mounting panel (3) with back and forth movement realization is right in lower locking groove (401) of mounting panel (4) down thereby go up mounting panel (3) with the locking and the unblock of lower mounting panel (4) are accomplished the locking and the unblock to the circuit breaker annex.
3. The locking mechanism for a circuit breaker according to claim 2, wherein: the locking shaft (5) comprises a head portion (501) and a shaft portion (502), the head portion (501) is disc-shaped and can limit the moving distance between the locking plate (6) and the elastic piece (7), and the shaft portion (502) is a polygonal cylinder and enables the locking plate (6) to only move in a translation mode along the axial direction of the locking shaft (5).
4. The locking mechanism for a circuit breaker according to claim 2, wherein: go up the non-installation end of mounting panel (3) and stretch out and collude board one (302) and can half wrap last circuit breaker annex (8), the middle part of going up mounting panel (3) is equipped with waist round hole (303), waist round hole (303) dress is in ring channel (201) of installation axle (2).
5. The locking mechanism for a circuit breaker according to claim 2, wherein: the non-installation end of lower mounting panel (4) stretches out and colludes board two (402) and can half wrap lower circuit breaker annex (9), there is round hole (403) at the middle part of lower mounting panel (4), round hole (403) dress is in annular groove (201) of installation axle (2).
6. The locking mechanism for a circuit breaker according to claim 2, wherein: a manual part (602) is arranged on the locking plate (6).
7. The locking mechanism for a circuit breaker of claim 1, wherein: locking structure (A) includes locking groove one (801) on last circuit breaker annex (8) shell extension and locking groove two (901) on lower circuit breaker annex (9) shell extension, locking plate (6) are in follow on locking axle (5) the axial translation in-process of locking axle (5), locking lug (601) can locking and the unblock of last circuit breaker annex (8) and lower circuit breaker annex (9) are realized to locking groove one (801) and locking groove two (901) interior back and forth movement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018111331222 | 2018-09-27 | ||
| CN201811133122 | 2018-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110957189A true CN110957189A (en) | 2020-04-03 |
| CN110957189B CN110957189B (en) | 2022-04-01 |
Family
ID=69975378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811185062.9A Active CN110957189B (en) | 2018-09-27 | 2018-10-11 | Locking mechanism for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110957189B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116190167A (en) * | 2023-05-04 | 2023-05-30 | 深圳市脉联电子有限公司 | Electric shock prevention structure and circuit breaker thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216146A (en) * | 1997-02-07 | 1999-05-05 | 通用电气公司 | Modular accessory mechanical lockout mechanism |
| US6480082B1 (en) * | 1996-12-25 | 2002-11-12 | Hitachi, Ltd. | Circuit breaker |
| EP2797097A1 (en) * | 2013-04-28 | 2014-10-29 | Siemens Aktiengesellschaft | Circuit breaker with a locking device |
| CN207441519U (en) * | 2017-10-18 | 2018-06-01 | 上海良信电器股份有限公司 | A kind of breaker locking device |
-
2018
- 2018-10-11 CN CN201811185062.9A patent/CN110957189B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6480082B1 (en) * | 1996-12-25 | 2002-11-12 | Hitachi, Ltd. | Circuit breaker |
| CN1216146A (en) * | 1997-02-07 | 1999-05-05 | 通用电气公司 | Modular accessory mechanical lockout mechanism |
| EP2797097A1 (en) * | 2013-04-28 | 2014-10-29 | Siemens Aktiengesellschaft | Circuit breaker with a locking device |
| CN207441519U (en) * | 2017-10-18 | 2018-06-01 | 上海良信电器股份有限公司 | A kind of breaker locking device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116190167A (en) * | 2023-05-04 | 2023-05-30 | 深圳市脉联电子有限公司 | Electric shock prevention structure and circuit breaker thereof |
| CN116190167B (en) * | 2023-05-04 | 2023-07-07 | 深圳市脉联电子有限公司 | Electric shock prevention structure and circuit breaker thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110957189B (en) | 2022-04-01 |
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