CN201199511Y - Trip locking safety device for circuit breaker - Google Patents

Trip locking safety device for circuit breaker Download PDF

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Publication number
CN201199511Y
CN201199511Y CNU2008200362695U CN200820036269U CN201199511Y CN 201199511 Y CN201199511 Y CN 201199511Y CN U2008200362695 U CNU2008200362695 U CN U2008200362695U CN 200820036269 U CN200820036269 U CN 200820036269U CN 201199511 Y CN201199511 Y CN 201199511Y
Authority
CN
China
Prior art keywords
lock body
dead bolt
circuit breaker
safety device
connecting rod
Prior art date
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.)
Expired - Lifetime
Application number
CNU2008200362695U
Other languages
Chinese (zh)
Inventor
俞晓峰
毛振风
应益飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changshu Switchgear Manufacturing Co Ltd
Original Assignee
Changshu Switchgear Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Changshu Switchgear Manufacturing Co Ltd filed Critical Changshu Switchgear Manufacturing Co Ltd
Priority to CNU2008200362695U priority Critical patent/CN201199511Y/en
Application granted granted Critical
Publication of CN201199511Y publication Critical patent/CN201199511Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to an opening and locking safety device of a breaker, which belongs to the technical field of breakers. The safety device comprises a locking mechanism used for being arranged on the breaker for installing a frame and configured on a mounting frame, and is characterized in that: the locking mechanism comprises a first lock body, a second lock body and a connecting rod, and the first lock body and the second lock body are arranged on the mounting frame, wherein, the second lock body is positioned at the lower part of the first lock body, the upper end of the connecting rod is connected with a first lock tongue of the first lock body, and the lower end thereof is connected with second lock tongue of the second lock body. The safety device has the advantages that: as the first lock body and the second lock body are adopted to form the locking mechanism, and the connecting rod is adopted to connect the first lock tongue of the first lock body and the second lock tongue of the second lock body, thus satisfying the requirements that the opening and locking of a closed mechanism of the breaker can be unlocked by the combined action of the keys of the first lock body and the second lock body respectively controlled by two persons, so as to guarantee the power supply security.

Description

The brake-dividing locking safety device of circuit breaker
Technical field
The utility model belongs to breaker technical field, is specifically related to a kind of brake-dividing locking safety device of circuit breaker.
Background technology
The structure of the breaker open operation locking safety device in the prior art is by shown in Figure 1, comprise that one is used to be installed to circuit breaker mounting bracket 1 that gets on and the locking mechanism 2 that is configured on the mounting bracket 1, when the dead bolt of locking mechanism 2 being rotated to the below by key, when promptly rotating to the push rod 31 corresponding to the switching-on mechanism 3 of the circuit breaker of illustrating among the figure, just block the push rod 31 of the switching-on mechanism 3 of circuit breaker by dead bolt, make push rod 31 not return to original position under the effect of the extension spring 32 of switching-on mechanism 3, the switching-on mechanism 3 of circuit breaker can not close a floodgate; Otherwise as shown in Figure 2, when the dead bolt of locking mechanism 2 was in the correspondence position of avoiding push rod 31, push rod 31 can return to original position under the effect of extension spring 32, removed the locking to the switching-on mechanism 3 of circuit breaker, and circuit breaker can be closed a floodgate.
By said structure as can be known, a circuit breaker has only a lock body mechanism, that is to say as long as use a key just can open lock body mechanism, more clearly says, gets final product the operated lock body mechanism as long as a people has a key.Facts have proved, this fail safe that is difficult to ensure power supply by monolock body mechanism, single key and one man operation's mode, for the occasion that need be controlled the switching-on mechanism combined floodgate of circuit breaker by two people, such as some important generating power supplys, said structure obviously can't satisfy again.
Summary of the invention
Task of the present utility model be to provide a kind of satisfy control switching-on mechanism by two people and close a floodgate and use the brake-dividing locking safety device that embodies the circuit breaker that ensures Supply Security.
Task of the present utility model is finished like this, a kind of brake-dividing locking safety device of circuit breaker, it comprises that one is used to be installed to get on mounting bracket and be configured in locking mechanism on the mounting bracket of circuit breaker, feature is: described locking mechanism comprises first, second lock body and a connecting rod, first, second lock body is installed on the mounting bracket, wherein, second lock body is positioned at the below of first lock body, first dead bolt of the upper end of described connecting rod and first lock body links, and second dead bolt of the lower end and second lock body links.
In a specific embodiment of the present utility model, offer sliding tray on described first dead bolt, slide and be attached on the sliding tray in the upper end of described connecting rod, and the lower end of connecting rod and second dead bolt are hinged and link.
In another specific embodiment of the present utility model, the shape of described first dead bolt is fan-shaped.
Go back in the specific embodiment of the present utility model, described sliding tray is a deep-slotted chip breaker.
The advantage of technical scheme disclosed in the utility model: owing to adopt first, second lock body to constitute locking mechanism, and adopting connecting rod that first, second dead bolt of first, second lock body is carried out links, thereby the acting in conjunction that can satisfy the key on first, second lock body of being controlled separately by two people could be removed the requirement to the brake-dividing locking of the switching-on mechanism of circuit breaker, is guaranteed the fail safe of powering.
Description of drawings
Fig. 1 is assemblied in the schematic diagram of on the circuit breaker brake separating mechanism of circuit breaker being implemented brake-dividing locking control for the brake-dividing locking safety device of the circuit breaker in the prior art.
Fig. 2 is assemblied in the schematic diagram of on the circuit breaker brake separating mechanism of circuit breaker being removed brake-dividing locking control for the brake-dividing locking safety device of the circuit breaker in the prior art.
Fig. 3 is an example structure figure of the brake-dividing locking safety device of the utility model circuit breaker.
Schematic diagram when Fig. 4 implements the brake-dividing locking state for second dead bolt of the present utility model is in to the brake separating mechanism of circuit breaker.
Schematic diagram when Fig. 5 can unlock state for second dead bolt of the present utility model is in brake separating mechanism to circuit breaker.
Schematic diagram when Fig. 6 unlocks state for second dead bolt of the present utility model is in brake separating mechanism to circuit breaker.
Fig. 7 is the first application examples schematic diagram of brake-dividing locking safety device on circuit breaker of the utility model circuit breaker.
Fig. 8 is the second application examples schematic diagram of brake-dividing locking safety device on circuit breaker of the utility model circuit breaker.
Figure 9 shows that Fig. 7 and the front schematic view of Fig. 8 structural arrangements on circuit breaker.
Embodiment
Ask for an interview Fig. 3, provided shape preferably but the L shaped mounting bracket 1 that definitely is not limited to, offer quantity in the bottom of this mounting bracket 1 and be not subjected to concrete at least one installing hole 11 that limits equally, mounting bracket 1 is fixed on the circuit breaker with screw 111 (Fig. 7 and Fig. 8 show).Locking mechanism 2 is installed on top at mounting bracket 1, and the locking mechanism 2 that the utility model is recommended has comprised first, second lock body 21,22, and first, second lock body 21,22 all is daily used and lock body that can extensively obtain from market.Second lock body 22 and first lock body 21 keep corresponding relation up and down, promptly second lock body 22 is corresponding to the below of first lock body 21, first dead bolt 211 is installed on the lock core of first lock body 21, this first dead bolt 211 is being taken on stop in fact or is being claimed the effect of braking, also can claim first dead bolt 211 to be locking plate in view of this.The preferred shape of first dead bolt 211 is fan-shaped, and on first dead bolt 211, offer the sliding tray 2111 of arc, the length of this sliding tray 2111 be with the lock core that is installed in second lock body 22 on the motion amplitude of second dead bolt 221 adapt, the motion amplitude of second dead bolt of being said here 221 is meant that second dead bolt 221 from the push rod 31 of the switching-on mechanism 3 of circuit breaker being implemented latched positions to avoiding or claiming to remove operating range to the stop place behind the push rod 31, refers to that just second dead bolt 221 arrives the distance of position shown in Figure 8 from position shown in Figure 7.
The upper end of connecting rod 23 links by sliding tray 2111 slips of first connection shaft 231 and first dead bolt 211, specifically be first connection shaft 231 to be passed sliding tray 2111 backs locate with first jump ring 2311, and the lower end of connecting rod 3 links by second connection shaft 232 and second dead bolt, 221 hinges, and second jump ring, 2321 blocks, thereby first, second dead bolt 211,221 is realized linking by connecting rod 23.
Ask for an interview Fig. 4, when on first key 212 shown in Figure 9 and second lock body 22 are arranged on first lock body 21, second key 222 shown in Figure 9 being arranged, as long as do not satisfy the state of Fig. 4 at first, second dead bolt 211,221, promptly during the no show locking bit, then first, second key 212,222 can't be extracted.And when first, second dead bolt 211,221 was in position shown in Figure 4, when promptly being in latched position, second dead bolt 221 just can provide constraints to the push rod 31 of the switching-on mechanism 3 of Fig. 7 and circuit breaker shown in Figure 8.Under this figure state, the position of the upper end of connecting rod 3 on sliding tray 2111 is the left end limit that is in sliding tray 2111, and the lower end of connecting rod 3 drives and carries on second dead bolt 221, and first dead bolt 211 of this moment goes to topmost, and second dead bolt 221 goes to bottom.If when having only second key 222 of second lock body 22, the lock core that desire is rotated second lock body 22 makes second dead bolt 3 move along illustrated directions X, so because first lock body 21 does not have first key 212, first dead bolt 211 can not rotate, connecting rod 23 can not move, and can not rotate thereby limit second dead bolt 221.So, when second key 222, just can not make second dead bolt 221 rotate release to directions X.
Ask for an interview Fig. 5, when having only first key 212 of first lock body 21, rotate along illustrated Y direction by first key 212, first dead bolt 211 moves to the Y direction thereupon, owing on first dead bolt 211 sliding tray 2111 is arranged, therefore first connection shaft 231 can slide in sliding tray 2111, so second dead bolt 221 can not limit the rotation of first dead bolt 211, first dead bolt 211 by Fig. 4 rotated position to Fig. 5 position, but because second dead bolt 221 do not rotate, so do not remove stopping to the push rod 31 of the switching-on mechanism 3 of Fig. 7 and circuit breaker shown in Figure 8.
Ask for an interview Fig. 6, have when simultaneously and to be directed to first, second lock body 21,22 first, second key 212,222 o'clock, the lock core that earlier first key 212 is inserted into first lock body 21 is Fig. 6 position by the description of Fig. 5 being operated this figure, the lock core that again second key 222 is inserted into second lock body 22 makes second dead bolt 221 remove stopping push rod 31, even second dead bolt 221 rotates to Y direction shown in Figure 5, first connection shaft 231 is in the top of the sliding tray 2111 of first dead bolt 211 at this moment, can move downward along sliding tray 2111, therefore can not limit the rotation of second dead bolt 221, so second dead bolt 221 can be with illustrated directions X from rotated position shown in Figure 5 to Fig. 6 position, thereby remove stopping push rod 31.
Ask for an interview Fig. 7 and Fig. 9, Fig. 8 has provided the push rod 31 and the extension spring 32 of the switching-on mechanism 3 of circuit breaker, in the above, the applicant has reflected that to the description of Fig. 4 221 pairs of push rods 31 of second dead bolt stop, promptly, push rod 31 can not return to original position under the effect of extension spring 32, the switching-on mechanism 3 of circuit breaker can not close a floodgate.
Ask for an interview Fig. 7 and Fig. 9, the applicant has reflected that to the description of Fig. 6 31 releasings of 221 pairs of push rods of second dead bolt stop that promptly, push rod 31 can return to original position under the effect of extension spring 32, can close a floodgate the switching-on mechanism 3 of circuit breaker in the above.
In sum, during any key in having only first, second lock body 21,22, owing to can't make second dead bolt 221 to the motion of Y direction, thereby can not release; Only possess that to have two be first, second key 212,222 o'clock and according to top description operation, second dead bolt 221 is rotated and release.When locking once more, because under lock-out state, first, second key 212,222 can't be extracted, promptly first key 212 is on first lock body 21, second key 222 is on second lock body 22, only need to rotate earlier second key 222, make second dead bolt 221 along the opposite direction of directions X promptly by Fig. 6 rotated position to Fig. 5 position, rotate again first key 212 on first lock body 21 make first dead bolt 211 along the Y direction promptly from Fig. 5 rotated position to Fig. 4 position, take first, second key 212,222 again away, respectively hold reservation by two people.Owing to need under the situation that two people show up simultaneously, operate, therefore can guarantee the fail safe of powering.

Claims (4)

1. the brake-dividing locking safety device of a circuit breaker, it comprises that one is used to be installed to get on mounting bracket (1) and be configured in locking mechanism (2) on the mounting bracket (1) of circuit breaker, it is characterized in that: described locking mechanism (2) comprises first, second lock body (21,22) and a connecting rod (23), first, second lock body (21,22) be installed on the mounting bracket (1), wherein, second lock body (22) is positioned at the below of first lock body (21), first dead bolt (211) of the upper end of described connecting rod (23) and first lock body (21) links, and second dead bolt (221) of lower end and second lock body (22) links.
2. the brake-dividing locking safety device of circuit breaker according to claim 1, it is characterized in that offering on described first dead bolt (211) sliding tray (2111), slide and be attached on the sliding tray (2111) in the upper end of described connecting rod (23), the lower end of connecting rod (23) and second dead bolt are hinged and link.
3. the brake-dividing locking safety device of circuit breaker according to claim 1 and 2 is characterized in that the shape of described first dead bolt (211) is fan-shaped.
4. the brake-dividing locking safety device of circuit breaker according to claim 2 is characterized in that described sliding tray (2111) is a deep-slotted chip breaker.
CNU2008200362695U 2008-05-16 2008-05-16 Trip locking safety device for circuit breaker Expired - Lifetime CN201199511Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200362695U CN201199511Y (en) 2008-05-16 2008-05-16 Trip locking safety device for circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200362695U CN201199511Y (en) 2008-05-16 2008-05-16 Trip locking safety device for circuit breaker

Publications (1)

Publication Number Publication Date
CN201199511Y true CN201199511Y (en) 2009-02-25

Family

ID=40450663

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200362695U Expired - Lifetime CN201199511Y (en) 2008-05-16 2008-05-16 Trip locking safety device for circuit breaker

Country Status (1)

Country Link
CN (1) CN201199511Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101281836B (en) * 2008-05-16 2010-06-09 常熟开关制造有限公司(原常熟开关厂) Brake-dividing locking safety device for breaker
CN102543513A (en) * 2011-12-20 2012-07-04 上海电科博耳电器开关有限公司 Circuit breaker switching-off locking device
CN103681130A (en) * 2012-09-11 2014-03-26 杭州之江开关股份有限公司 Circuit breaker opening button locking device
CN110931317A (en) * 2019-09-19 2020-03-27 许继集团有限公司 Direct current circuit breaker and self-locking device thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101281836B (en) * 2008-05-16 2010-06-09 常熟开关制造有限公司(原常熟开关厂) Brake-dividing locking safety device for breaker
CN102543513A (en) * 2011-12-20 2012-07-04 上海电科博耳电器开关有限公司 Circuit breaker switching-off locking device
CN103681130A (en) * 2012-09-11 2014-03-26 杭州之江开关股份有限公司 Circuit breaker opening button locking device
CN103681130B (en) * 2012-09-11 2016-08-17 杭州之江开关股份有限公司 A kind of breaker open operation button locking device
CN110931317A (en) * 2019-09-19 2020-03-27 许继集团有限公司 Direct current circuit breaker and self-locking device thereof
CN110931317B (en) * 2019-09-19 2021-09-14 许继集团有限公司 Direct current circuit breaker and self-locking device thereof

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20090225

Effective date of abandoning: 20080516