CN202299758U - Lock catch and power distribution cabinet - Google Patents
Lock catch and power distribution cabinet Download PDFInfo
- Publication number
- CN202299758U CN202299758U CN2011202616679U CN201120261667U CN202299758U CN 202299758 U CN202299758 U CN 202299758U CN 2011202616679 U CN2011202616679 U CN 2011202616679U CN 201120261667 U CN201120261667 U CN 201120261667U CN 202299758 U CN202299758 U CN 202299758U
- Authority
- CN
- China
- Prior art keywords
- snap close
- stop part
- dead bolt
- support section
- power distribution
- 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
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Abstract
The utility model discloses a lock catch and a power distribution cabinet, wherein the lock catch is used for matching a latch to lock and unlock two elements; the lock catch is arranged on one of the two elements; and the latch is installed on the other element. The lock catch comprises a supporting element and a blocking piece which is supported by the supporting element; the supporting element is used for fixing the lock catch on one of the elements; and the blocking piece is used for connecting the latch to lock the two elements. The lock catch is characterized in that when force which is applied to the blocking piece by the latch exceeds a predetermined threshold value, the blocking piece can move to a release position relative to the supporting element, and can return to the initial position when the force is removed. By using the lock catch, pressure in the power distribution cabinet can be released quickly and the power distribution cabinet can be maintained in a closing state after the pressure is released.
Description
Technical field
The utility model relates to a kind of snap close; And relate in particular to a kind of flexible snap close that is used for the cabinet door of low-voltage distribution cabinet etc.; This flexibility snap close matches with the dead bolt of conventional door lock, with locking power distribution cabinet under normal operation, and can the authorized pressure abrupt release when short trouble takes place.In addition, the utility model also relates to a kind of power distribution cabinet that this snap close is installed.
Background technology
Traditionally, the power distribution cabinet that holds like line breaker, switchgear etc. need close cabinet door lock, so that have only the operating personnel of permission can be near wherein electric fixtures, to prevent accident such as electric shock.
Traditional door lock that is used for cabinet doors such as power distribution cabinet comprises the snap close 2 on lock core, operating grip that is installed on the cabinet door and the doorframe that is installed in power distribution cabinet.Fig. 1 and Fig. 2 show the dead bolt and the snap close of conventional door lock, and Fig. 3 shows under cabinet door blocking the engagement state of dead bolt and snap close.
Shown in Fig. 1-3, usually, the lock core (not shown) runs through the door-plate (not shown) to be installed, so that leave lockhole in the outside of door-plate, supplies the operator to insert key; And at the opposite side of cabinet door, lock core is provided with dead bolt 1.This dead bolt 1 and lock core relative fixed, so that through operator's key or operating grip, can be so that dead bolt 1 together rotates with lock core.On the surface that snap close 2 is installed on the doorframe of power distribution cabinet with door-plate is faced, the position corresponding with dead bolt.Snap close 2 is made up of two blocks of isolated plates of almost parallel, and one of them plate 21 for example is fastened on the doorframe through screw etc., and another plate 22 links to each other with plate 21 through coupling part 23, and by its support.Between two plates, form opening 24, whole snap close 2 is mounted to and makes that opening 24 is relative with dead bolt 1.As shown in Figure 3; Under blocking; Dead bolt 1 is rotated the position with the doorframe approximate vertical, makes the locked end of dead bolt 1 be inserted in the opening 24 of U-shaped of snap close 2, thereby when attempting to open cabinet door (along the direction shown in the arrow A); Another plate 22 of U-shaped snap close 2 stops dead bolt 1, and and then stops door to be opened.When operating personnel work, can be through inserting key rotation lock core, make dead bolt 1 be in the position with plate 22 almost parallels, thus, remove stopping of 22 pairs of dead bolts 1 of plate, thereby allowed the cabinet door to be opened.
But when distribution line is short-circuited, the line breaker of power distribution cabinet the inside will be brought into play protective effect; Interrupting short circuit; In the moment of interrupting short circuit, the inner electric arc that produces of line breaker can produce great amount of high-temperature gas, and these gases are released out and get in the power distribution cabinet.In this case, because the cabinet door of power distribution cabinet is by the door lock locking, power distribution cabinet is under the state of sealing basically, makes pressure to discharge.Under the poorest situation, might cause door lock (comprising dead bolt and snap close) to be damaged and cabinet door and doorframe distortion, and the cabinet door is washed open this accident that possibly cause casualties by pressure.After trouble shooting, power distribution cabinet can't come into operation again, and door lock must be changed at least.This just brings unnecessary cost to raise.In addition, because the cabinet door can't close again, bring the risk of extra electric shock etc.
The utility model content
In view of the above problems and according to the associated safety regulation of protection of electric fixtures; Need be when faults such as short circuit occurring; Can the pressure in the power distribution cabinet be discharged fast, and can guarantee that power distribution cabinet keeps closed state after pressure discharges, and then can not bring the electric shock equivalent risk.
The utility model is made in order to address the above problem, and the purpose of the utility model provide a kind of can be with the flexible snap close of pressure abrupt release.
According to the utility model; A kind of snap close is provided; Be used for and dead bolt match incompatible locking and two mechanical parts of release, wherein snap close is installed on one of them of two mechanical parts, and dead bolt is installed on another; Said snap close comprises support component and by the stop part of said support; Said support component is used for snap close is fixed on a said mechanical part, and said stop part is used for and the join locking of said two elements of incompatible realization of said dead bolt, when said dead bolt puts on power on the said stop part and surpasses predetermined threshold; Said stop part squints with respect to said support component, and said stop part can return to initial position after said power is removed.
Said snap close also comprises resilient bias, under the state that said dead bolt and said snap close engage, said resilient bias with said stop part to said initial position bias voltage.
Said resilient bias is a helical spring.
Said support component is the L shaped plate shape, and the base plate of said L shaped plate is fixed on the said element, and the top of the vertical panel of said L shaped plate is provided with support section highlightedly, and said stop part is arranged on this support section.
Said stop part is the U-shaped shape, and the top of two upright arms of said U-shaped shape is buckled on the said support section, and under blocking, the bottom of the U-shaped shape of said dead bolt and said stop part leans.
Said helical spring is arranged between the bottom and said support section of U-shaped shape of said stop part, with said stop part towards the direction bias voltage that deviates from said support section.
Said stop part comprises the barrier sheet that engages with said dead bolt and said barrier sheet is supported on the pillar on the said support section slidably; Said helical spring is enclosed within on the periphery of said pillar, with said barrier sheet towards the direction bias voltage that deviates from said support section.
Cabinet door and doorframe that said two mechanical parts are respectively power distribution cabinets.
According to the utility model on the other hand, a kind of power distribution cabinet that comprises above-mentioned snap close is provided.
Utilize the utility model, when the pressure in power distribution cabinet increased owing to faults such as short circuits, the stop part of snap close moved; Allow the cabinet door to open predetermined gap thus, pressure is discharged fast, and after pressure discharges; Stop part can return to initial position; Thus, the cabinet door is returned to closed condition once more, and then satisfy the security protection regulation.
Description of drawings
Other characteristics, purpose and the advantage of the utility model will be more readily understood through with reference to the accompanying drawings the detailed description of the preferred embodiment of the utility model being become, among the figure:
Fig. 1 illustrates the dead bolt that is adopted in the door lock of prior art;
Fig. 2 illustrates the snap close that is adopted in the door lock of prior art;
Fig. 3 illustrates the dead bolt of Fig. 1 and Fig. 2 and the state of the mutual locking of snap close;
Fig. 4 is the phantom drawing that illustrates according to the snap close of the utility model first embodiment;
Fig. 5 is the phantom drawing that illustrates according to the snap close of the utility model second embodiment; And
Fig. 6 illustrates dead bolt and phantom drawing according to the snap close engagement state of the utility model second embodiment.
The specific embodiment
Preferred implementation according to the utility model is described with reference to the accompanying drawings.In these accompanying drawings, the part that identical designated is identical, and omit being repeated in this description to them.It is to be noted that embodiment described here only is an illustrative, and does not constitute the restriction to the utility model.
Fig. 4 is the phantom drawing according to the snap close of the utility model first embodiment.As shown in Figure 4, snap close 2 is made up of support component 21, stop part 22 and helical spring 23.Wherein, Support component 21 is roughly on the whole and is formed with two or more connecting holes 212 on L shaped, the L shaped base plate 211, so that whole support component 21 is fixed on the doorframe (not shown); At the top of the L shaped vertical panel 213 of support component, stretch out support section 214.Stop part 22 is U-shaped spare roughly, and the top of two upright arms 221 of this U-shaped spare 22 is formed with inside pimple 222, so that stop part 22 is buckled on the support section 214.Helical spring 23 is arranged between the bottom and support section 214 of U-shaped stop part 22, and with the direction bias voltage of stop part 22 towards base plate 211, and, prevent stop part 22 and support section 214 disengagements by means of pimple 222.
When the locking of cabinet door; Dead bolt (not shown in Fig. 4) is inserted in the space between U-shaped stop part 22 and the base plate 211, and stop part 22 stops dead bolts to move (below be also referred to as the direction of opening the door) along the direction shown in the arrow A thus, makes door by locking; At this moment, stop part 22 is in initial position.When the pressure in the power distribution cabinet surpasses predetermined threshold; The biasing force that dead bolt overcomes spring 23 makes stop part 22 move along the direction of opening the door, and thus, direction moves certain distance along opening the door to allow dead bolt (cabinet door); Cabinet door certain slit that is opened discharges the pressure in the power distribution cabinet.In stop part 22 moving process, two upright arms 221 of U-shaped stop part 22 slide along support section 214, play the effect that guiding stop part 22 moves.After pressure discharges,, make dead bolt (and cabinet door) be returned to closed condition by means of the restoring force of helical spring 23.In addition,, guiding pillar (not shown) can also be set, to prevent being compressed in process spring 23 distortions at spring 23 in the interior week of spring 23.
Fig. 5 illustrates the phantom drawing according to the snap close of the utility model second embodiment.Second embodiment is substantially the same with first embodiment, and difference is the structure of stop part 22 between the two.
As shown in Figure 5, comprise barrier sheet 221 and pillar 223 according to the stop part 22 of the snap close of the utility model second embodiment.One end of this pillar 223 can be fixing with barrier sheet 221, and the other end passes the hole that forms on the support section 214, makes pillar 223 to slide with respect to support section 214.Perhaps, on the contrary, pillar 223 can be fixed on the support section 214 by an end, and the other end can slide with respect to barrier sheet 211.Pillar 223 slidably end is provided with diameter-increasing portion, throws off to prevent pillar 223 and support section 214 or barrier sheet 221.Helical spring 23 is enclosed within the outside of this pillar 223.
Fig. 6 shows the state that dead bolt 1 engages with snap close 2.Under the state of cabinet door locking, dead bolt 1 is resisted against on the stop part 22, prevents that thus the cabinet door is opened.Under the situation of accidents such as being short-circuited, the pressure in the power distribution cabinet increases, and when pressure increased to above predetermined threshold, dead bolt 1 overcame the biasing force of helical spring 23, promotes barrier sheet 221 and moves along the direction (direction shown in the arrow A) of opening the door.Be similar to first embodiment, the cabinet door predetermined gap that is opened makes pressure be released.After pressure discharged, by means of the elastic force of helical spring 23, barrier sheet 221 turned back to initial position, makes the cabinet door turn back to closed condition thus.
In addition, although disclose the preferred implementation of the utility model in the above, the utility model is not limited thereto.For example, in the superincumbent description, although the dead bolt of snap close of the utility model and rotation is used,, also can with other dead bolt, be used like the dead bolt that slides, can realize above-mentioned effect equally.
Utilize the flexible snap close of the utility model, the pressure moment in power distribution cabinet can allow the cabinet door to open predetermined gap when raising; Make that thus pressure obtains discharging fast, and after fault, by means of the elastic force of spring; Can the cabinet door be turned back to closed condition, satisfy the security protection regulation thus.
Although describe the preferred implementation of the utility model in the above in detail,, the utility model never is so limited.Under the instruction of the utility model, those skilled in the art can make various modifications and modification to it, and these are revised and modification all should fall in the protection domain of the utility model.For example; In the embodiment of describing in the above; It has adopted the bias piece of helical spring, but obviously can adopt any elastic device, as long as can shrink when pressure surpasses predetermined threshold and after pressure solutions is removed, reset as the bias voltage stop part.Therefore, the protection domain of the utility model is only limited appending claims and equivalent thereof.
Claims (9)
1. snap close; Be used for and dead bolt (1) match incompatible locking and two mechanical parts of release; Wherein snap close (2) is installed on one of them of two mechanical parts, and dead bolt (1) is installed on another, and said snap close comprises support component (21) and by the stop part (22) of said support; Said support component (21) is used for snap close (2) is fixed on a said mechanical part; And said stop part (22) is used for and the join locking of said two elements of incompatible realization of said dead bolt (1), it is characterized in that, when said dead bolt (1) puts on power on the said stop part (22) and surpasses predetermined threshold; Said stop part (22) is with respect to said support component (21) skew, and said stop part (22) can return to initial position after said power is removed.
2. snap close as claimed in claim 1; It is characterized in that; Said snap close (2) also comprises resilient bias (23), under the state that said dead bolt (1) and said snap close (2) engage, said resilient bias (23) with said stop part (22) to said initial position bias voltage.
3. snap close as claimed in claim 2 is characterized in that, said resilient bias (23) is a helical spring.
4. snap close as claimed in claim 3; It is characterized in that; Said support component (21) is the L shaped plate shape; The base plate of said L shaped plate (211) is fixed on the said element, and the top of the vertical panel of said L shaped plate (213) is provided with support section (214) highlightedly, and said stop part (221) is arranged on this support section (214).
5. snap close as claimed in claim 4; It is characterized in that said stop part (22) is the U-shaped shape, the top of two upright arms of said U-shaped shape is buckled on the said support section (214); Under blocking, said dead bolt (1) leans with the bottom of the U-shaped shape of said stop part (22).
6. snap close as claimed in claim 5; It is characterized in that; Said helical spring (23) is arranged between the bottom and said support section (214) of U-shaped shape of said stop part (22), with said stop part (22) towards the direction bias voltage that deviates from said support section (214).
7. snap close as claimed in claim 4; It is characterized in that; Said stop part (22) comprises the barrier sheet (221) that engages with said dead bolt (1) and said barrier sheet (221) is supported on the pillar (223) on the said support section (214) slidably; Said helical spring (23) is enclosed within on the periphery of said pillar (223), with said barrier sheet (221) towards the direction bias voltage that deviates from said support section (214).
8. like each described snap close among the claim 1-7, it is characterized in that cabinet door and doorframe that said two mechanical parts are respectively power distribution cabinets.
9. a power distribution cabinet comprises like each described snap close (2) among the claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202616679U CN202299758U (en) | 2011-07-22 | 2011-07-22 | Lock catch and power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202616679U CN202299758U (en) | 2011-07-22 | 2011-07-22 | Lock catch and power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202299758U true CN202299758U (en) | 2012-07-04 |
Family
ID=46368682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202616679U Expired - Lifetime CN202299758U (en) | 2011-07-22 | 2011-07-22 | Lock catch and power distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202299758U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565409A (en) * | 2017-10-27 | 2018-01-09 | 镇江上菱电气有限公司 | A kind of high security switch cubicle |
| CN109383876A (en) * | 2018-12-26 | 2019-02-26 | 华联机械集团有限公司 | A kind of sealing machine |
| CN109428275A (en) * | 2017-08-24 | 2019-03-05 | 通用电气公司 | Electric power distribution system including pressure release mechanism |
-
2011
- 2011-07-22 CN CN2011202616679U patent/CN202299758U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109428275A (en) * | 2017-08-24 | 2019-03-05 | 通用电气公司 | Electric power distribution system including pressure release mechanism |
| CN109428275B (en) * | 2017-08-24 | 2022-03-08 | Abb瑞士股份有限公司 | Power distribution system including pressure release mechanism |
| CN107565409A (en) * | 2017-10-27 | 2018-01-09 | 镇江上菱电气有限公司 | A kind of high security switch cubicle |
| CN109383876A (en) * | 2018-12-26 | 2019-02-26 | 华联机械集团有限公司 | A kind of sealing machine |
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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: 20120704 |
|
| CX01 | Expiry of patent term |