CN201750082U - Chassis locking device of handcart type circuit breaker - Google Patents
Chassis locking device of handcart type circuit breaker Download PDFInfo
- Publication number
- CN201750082U CN201750082U CN2010202840699U CN201020284069U CN201750082U CN 201750082 U CN201750082 U CN 201750082U CN 2010202840699 U CN2010202840699 U CN 2010202840699U CN 201020284069 U CN201020284069 U CN 201020284069U CN 201750082 U CN201750082 U CN 201750082U
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- CN
- China
- Prior art keywords
- interlocking
- circuit breaker
- bent plate
- locking device
- chassis car
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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.)
- Expired - Lifetime
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Abstract
The utility model relates to a chassis locking device of a handcart type circuit breaker, which belongs to an indoor high-voltage vacuum circuit breaker. The handcart type circuit breaker comprises a chassis with an interlocking shaft and a circuit breaker operating mechanism side plate, the chassis locking device comprises an electric magnet and an interlocking rod and is characterized by also comprising an interlocking bent plate, one end of the interlocking bent plate is pivoted on the inner side of the circuit breaker operating mechanism side plate, and the other end of the interlocking bent plate is a free end and is matched with the interlocking rod; and the electric magnet is arranged on the circuit breaker operating mechanism side plate, and an iron core of the electric magnet is matched with the free end of the interlocking bent plate. The utility model has the advantage that no installation errors can be caused between the electric magnet and the interlocking bent plate and between the interlocking bent plate and the interlocking rod to stop or allow the movement of the chassis, thereby ensuring the reliability of locking and unlocking the chassis.
Description
Technical field
The utility model belongs to the indoor high-voltage vacuum circuit breaker technical field, is specifically related to a kind of chassis car locking device of handcart type breaker, is the improvement to the chassis car locking device of the handcart type breaker in the prior art.
Background technology
As the reason known to the those of skill in the art, handcart type breaker has two positions, i.e. service position and isolated location in switch cubicle.Circuit breaker when the service position, switch cubicle major loop and circuit breaker major loop UNICOM; And circuit breaker is when the isolated location, and the switch cubicle major loop separates (also can claim to disconnect) with the circuit breaker major loop.The conversion of this two positions of circuit breaker in switch cubicle is realized by the moving of chassis car of handcart type breaker.Because major loop is the electrification in high voltage annex, therefore moving of circuit breaker must be carried out under the state that allows, the state of so-called permission is meant the state that is in release at chassis car locking device, that is to say by chassis car locking device control chassis car to take circuit breaker moving in switch cubicle.
Figure 2 shows that the chassis car locking device in the prior art, the blocking lever that Figure 3 shows that chassis car locking device is arranged at the schematic diagram on the interlocking shaft of chassis car.By Fig. 2 and shown in Figure 3, chassis car locking device comprises electromagnet 1 (also can claim latching electromagnet, as follows) and blocking lever 2, and electromagnet 1 is directly installed on the chassis kickstand 31 of chassis car 3, and blocking lever 2 is arranged on the interlocking shaft 4, and rotates around interlocking shaft 4.When chassis car 3 is shaken (moving), when promptly handling hand screw rod 32 by hand screw handle, blocking lever 2 rotates counterclockwise around lock shaft 4, and after blocking lever 2 turned an angle, chassis car 3 just was able to be shaken (this function is by self function decision of chassis car 3).If stop blocking lever 2 to rotate, chassis car 3 can't move so.Specific to the signal of Fig. 2 and Fig. 3, electromagnet 1 dead electricity on the chassis kickstand 31 that is installed in chassis car 3, the iron core 11 of electromagnet 1 is protruding so, and iron core 11 just blocks and extends blocking lever 2, thereby blocking lever 2 can't be rotated with aforesaid interlocking shaft 4; Otherwise, must electricly promptly switch on when electromagnet 1, iron core 11 bounces back in the body of electromagnet 1 so, because the retraction of iron core 11, thereby removed the stopping of pin 21, blocking lever 2 just can rotate (rotating counterclockwise) with aforesaid interlocking shaft 4, realizes allowing or stoping moving of chassis car 3 thus.
As shown in the above description, the iron core of electromagnet 1 11 is the points of engagement that realize above-mentioned functions with the pin 21 of blocking lever 2, and promptly the pin 21 by 11 pairs of blocking levers 2 of iron core of electromagnet 1 stops.Specifically by shown in Figure 2, iron core 11 can not rotate counterclockwise blocking lever 2 corresponding to the left side of pin 21.The shortcoming of two places below said structure exists in the use of reality: one, pin 21 is less from the distance (radius of turn) of interlocking shaft 4, when blocking lever 2 rotating certain angle, the distance that its pin 21 turns over (angle that turns over and the product of radius of turn) is also less, at this moment, in order to stop blocking lever 2 to rotate and release, need the rotation of restriction blocking lever 2.When stopping that pin 21 is controlled blocking lever 2, high control precision certainly will can not be satisfied.They are two years old, because electromagnet 1 is fixed on the chassis kickstand 31 of chassis car 3, and blocking lever 2 is located on (being fixed on) interlocking shaft 4, again because the parts between the base plate of interlocking shaft 4 and chassis car 3 are numerous, thereby makes the precision between electromagnet 1 and the blocking lever 2 be difficult to guarantee.Because, exist on business poor between the iron core 11 of electromagnet 1 and the pin 21 of blocking lever 2 unavoidably and gap that cause, thereby when interlocking shaft 4 rotates, the revolution of aforementioned gap degree can appear in blocking lever 2, therefore the control effect of the pin 21 of 11 pairs of blocking levers 2 of iron core of electromagnet 1 is that control precision can't guarantee, finally influences the control effect whether chassis car 3 moves.
Analyze and think that directly blocking lever 2 being implemented control by electromagnet 3 is the reason place that causes above-mentioned shortcoming through the applicant.Therefore be necessary the structure of the chassis car locking device in the prior art is improved, for this reason, the applicant has carried out the positive examination of repaying, and technical scheme described below produces under this background.
Summary of the invention
Task of the present utility model is to provide the chassis car locking device of the handcart type breaker of a kind of iron core that helps to make electromagnet uses the locking and unlocking that ensures the chassis car to reliable qualification of blocking lever reliability.
Task of the present utility model is finished like this, a kind of chassis car locking device of handcart type breaker, described handcart type breaker comprises chassis car and the circuit breaker operation mechanism side plate with interlocking shaft, described chassis car locking device comprises electromagnet and the blocking lever that is fixed on the described interlocking shaft, be characterised in that described chassis car locking device also includes an interlocking bent plate, one end pivoting of this interlocking bent plate is arranged on the inboard of described circuit breaker operation mechanism side plate, and the other end of interlocking bent plate constitutes free end, and matches with described blocking lever; Described electromagnet is arranged on the described circuit breaker operation mechanism side plate, and the iron core of this electromagnet matches with the free end of described interlocking bent plate.
In a specific embodiment of the present utility model, the inboard of described circuit breaker operation mechanism side plate is installed with a support, one end pivoting of described interlocking bent plate is arranged on the support, and the end of the other end of interlocking bent plate constitutes a bending part, and be extended with one in a side of this end and stop pin, wherein, bending part matches with described blocking lever, and stops the below of pin corresponding to the iron core of described electromagnet.
In another specific embodiment of the present utility model, described electromagnet is located at the outside of described circuit breaker operation mechanism side plate, and offer one and stop the pin groove on the circuit breaker operation mechanism side plate, the described pin that stops probes into the below that stops in the pin groove and correspond to described iron core.
In another specific embodiment of the present utility model, described blocking lever constitutes an interlocking lever arm towards an end of described interlocking bent plate, and described bending part matches with the interlocking lever arm.
The utility model is owing to set up the interlocking bent plate to chassis car locking device, and will interlock bent plate and electromagnet jointly are installed on the circuit breaker operation mechanism side plate, electromagnet is to the control of interlocking bent plate, and the interlocking bent plate is controlled blocking lever, can be between electromagnet and interlocking bent plate and interlocking bent plate and the blocking lever because of alignment error does not occur influencing the situation that stops or allow the chassis car to move, thus can guarantee reliability to the locking or the release of chassis car.
Description of drawings
Fig. 1 is a specific embodiment structure chart of the present utility model.
Fig. 2 is the structure chart of the chassis car locking device of the handcart type breaker in the prior art.
Fig. 3 is that the blocking lever of structure shown in Figure 2 is arranged at the schematic diagram on the interlocking shaft.
Embodiment
Ask for an interview Fig. 1, provided the chassis car 3 with interlocking shaft 4 of the structure circuit breaker identical with prior art, undoubtedly, on chassis car 3, be equipped with high-pressure vacuum breaker, illustrated the circuit breaker operation mechanism side plate 5 of high-pressure vacuum breaker among the figure, circuit breaker operation mechanism side plate 5 has a pair of, though only show one piece among Fig. 1, causes puzzlement can't for the public's understanding.As the chassis car locking device that the utility model provides, comprise electromagnet 1, blocking lever 2 and the interlocking bent plate of setting up 6.Aforesaid interlocking shaft 4 is arranged on the chassis car 3 rotationally, and electromagnet 1 (being latching electromagnet, as follows) is by electromagnet stent 12 and be installed on the outside of circuit breaker operation mechanism side plate 5 by means of support hold-down screw 121.On circuit breaker operation mechanism side plate 5 and at position, offer a retaining pin groove 52 corresponding to the iron core 11 of aforesaid electromagnet 1, one end of aforesaid interlocking bent plate 6 (also can claim base portion or tail end) is arranged on the support 51 by bearing pin 63 pivots, and support 51 is fixed on the inboard of circuit breaker operation mechanism side plate 5, the other end of interlocking bent plate 6 is the free end that front end constitutes, and be bent with a bending part 61 in the end of this end, and in a side of this end and be extended with one at position and stop pin 62, stop that pin 62 probes in the retaining pin groove 52 and corresponding to the below of iron core 11 corresponding to aforesaid retaining pin groove 52.One end of blocking lever 2 has a pin 21, and an end and aforesaid interlocking shaft 4 with pin 21 are fixing, driving blocking lever 2 under the rotation of interlocking shaft 4 turns an angle, the other end of blocking lever 2 promptly constitutes an interlocking lever arm 22 towards the end bending of aforesaid interlocking bent plate 6, this interlocking lever arm 22 matches with the bending part 61 of interlocking bent plate 6, that is to say by bending part 61 to act on interlocking lever arm 6.
When the iron core 11 of electromagnet 1 stretches out (electromagnet 1 dead electricity), the position that pin 62 passes the retaining pin groove 52 on the circuit breaker operation mechanism side plate 5 of stopping of interlocking bent plate 6 is stopped by iron core 11 and is in locked position of coupler, this moment is because interlocking bent plate 6 can not be with respect to lock shaft 63 rotations, so the bending part 61 of the bent plate 6 of interlocking is pressed on the interlocking lever arm 22 of blocking lever 2, interlocking lever arm 22 can not move upward, thereby blocking lever 2 can not rotate counterclockwise, and therefore by above-mentioned latching relation chassis car 3 can not be moved.
When the iron core 11 of electromagnet 1 does not stretch out, the pin 62 that stops of the interlocking bent plate 6 of this moment is not stopped by iron core 11, stop that promptly pin 62 is in the unlocked position, the interlocking bent plate 6 of this moment can rotate around bearing pin 63, because the interlocking lever arm 22 of 61 pairs of blocking levers 2 of bending part of interlocking bent plate 6 has been removed the control relation, so blocking lever 2 can turn over specific angle around interlocking shaft 4.By above-mentioned release relation, chassis car 3 can be shaken off locking and move.Because the interlocking lever arm 22 of blocking lever 2 of the present utility model is more much bigger to the distance of interlocking shaft 4 than the pin 21 on the blocking lever 2 in the prior art (Fig. 2 and Fig. 3 structure) to the distance of interlocking shaft 4, behind identical rotational angle product, the linear distance that rotates can obviously increase, when control can obtain higher locking precision during with equidistant displacement of the lines, thereby can realize positive lock to chassis car 3.Secondly, the technical scheme that the utility model provides compared with the prior art, owing to increased interlocking bent plate 6, and, therefore can not occur between the two because of alignment error causes the situation of poor fit because interlocking bent plate 6 jointly is installed on the same circuit breaker operation mechanism side plate 5 with electromagnet 1.
Claims (4)
1. the chassis car locking device of a handcart type breaker, described handcart type breaker comprises the have interlocking shaft chassis car (3) and the circuit breaker operation mechanism side plate (5) of (4), described chassis car locking device comprises electromagnet (1) and is fixed on blocking lever (2) on the described interlocking shaft (4), it is characterized in that described chassis car locking device also includes an interlocking bent plate (6), one end pivoting of this interlocking bent plate (6) is arranged on the inboard of described circuit breaker operation mechanism side plate (5), and the other end of interlocking bent plate (6) constitutes free end, and matches with described blocking lever (2); Described electromagnet (1) is arranged on the described circuit breaker operation mechanism side plate (5), and the iron core (11) of this electromagnet (1) matches with the free end of described interlocking bent plate (6).
2. the chassis car locking device of handcart type breaker according to claim 1, the inboard that it is characterized in that described circuit breaker operation mechanism side plate (5) is installed with a support (51), one end pivoting of described interlocking bent plate (6) is arranged on the support (51), and the end of the other end of interlocking bent plate (6) constitutes a bending part (61), and be extended with one in a side of this end and stop pin (62), wherein, bending part (61) matches with described blocking lever (2), and stops the below of pin (62) corresponding to the iron core (11) of described electromagnet (1).
3. the chassis car locking device of handcart type breaker according to claim 2, it is characterized in that described electromagnet (1) is located at the outside of described circuit breaker operation mechanism side plate (5), and offer one and stop pin groove (52) on circuit breaker operation mechanism side plate (5), the described pin (62) that stops probes into the below that stops in the pin groove (52) and correspond to described iron core (11).
4. the chassis car locking device of handcart type breaker according to claim 2, it is characterized in that described blocking lever (2) constitutes an interlocking lever arm (22) towards an end of described interlocking bent plate (6), described bending part (61) matches with interlocking lever arm (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202840699U CN201750082U (en) | 2010-08-06 | 2010-08-06 | Chassis locking device of handcart type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202840699U CN201750082U (en) | 2010-08-06 | 2010-08-06 | Chassis locking device of handcart type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201750082U true CN201750082U (en) | 2011-02-16 |
Family
ID=43584754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202840699U Expired - Lifetime CN201750082U (en) | 2010-08-06 | 2010-08-06 | Chassis locking device of handcart type circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201750082U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231485A (en) * | 2011-04-20 | 2011-11-02 | 吉林省金冠电气股份有限公司 | Removable isolating handcart with two-section lead-in locking device |
| CN102496874A (en) * | 2011-12-26 | 2012-06-13 | 安徽鑫龙电器股份有限公司 | Unlocking device of high-tension switch cabinet chassis dolly |
| CN103177902A (en) * | 2011-12-20 | 2013-06-26 | Ls产电株式会社 | Interlock lock mechanism for vacuum circuit breaker |
| CN104078871A (en) * | 2014-07-11 | 2014-10-01 | 北京京东方真空电器有限责任公司 | Handcart type breaker chassis van locking device and breaker |
| CN108493067A (en) * | 2018-05-09 | 2018-09-04 | 河南森源电气股份有限公司 | Circuit breaker system and handcart type breaker |
-
2010
- 2010-08-06 CN CN2010202840699U patent/CN201750082U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231485A (en) * | 2011-04-20 | 2011-11-02 | 吉林省金冠电气股份有限公司 | Removable isolating handcart with two-section lead-in locking device |
| CN103177902A (en) * | 2011-12-20 | 2013-06-26 | Ls产电株式会社 | Interlock lock mechanism for vacuum circuit breaker |
| CN103177902B (en) * | 2011-12-20 | 2015-08-05 | Ls产电株式会社 | For the interlock lock mechanism of vacuum circuit-breaker |
| CN102496874A (en) * | 2011-12-26 | 2012-06-13 | 安徽鑫龙电器股份有限公司 | Unlocking device of high-tension switch cabinet chassis dolly |
| CN102496874B (en) * | 2011-12-26 | 2015-03-04 | 安徽鑫龙电器股份有限公司 | Unlocking device of high-tension switch cabinet chassis dolly |
| CN104078871A (en) * | 2014-07-11 | 2014-10-01 | 北京京东方真空电器有限责任公司 | Handcart type breaker chassis van locking device and breaker |
| CN108493067A (en) * | 2018-05-09 | 2018-09-04 | 河南森源电气股份有限公司 | Circuit breaker system and handcart type breaker |
| CN108493067B (en) * | 2018-05-09 | 2023-10-20 | 河南森源电气股份有限公司 | Circuit breaker system and handcart type circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110216 |
|
| CX01 | Expiry of patent term |