CN202284421U - Lock catch and power distribution cabinet - Google Patents
Lock catch and power distribution cabinet Download PDFInfo
- Publication number
- CN202284421U CN202284421U CN2011202623314U CN201120262331U CN202284421U CN 202284421 U CN202284421 U CN 202284421U CN 2011202623314 U CN2011202623314 U CN 2011202623314U CN 201120262331 U CN201120262331 U CN 201120262331U CN 202284421 U CN202284421 U CN 202284421U
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- China
- Prior art keywords
- power distribution
- snap close
- distribution cabinet
- dead bolt
- cabinet
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- Expired - Lifetime
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Abstract
The utility model discloses a lock catch and a power distribution cabinet. The lock catch can be matched with a lock tongue to lock and unlock two mechanical parts, wherein the lock catch is arranged on one of the two mechanical parts, and the lock tongue is arranged on the other one of the two mechanical parts so as to move between the locking position connected with the lock catch and the unlocking position breaking away from the lock catch. The lock catch comprises a support element for fixing the lock catch on one mechanical part and a stopping piece which is supported by the support element and connected with the lock catch at the locking position. When force applied by the lock tongue onto the stopping piece exceeds a threshold value, the stopping piece can deform. By means of the lock catch, when pressure in the power distribution cabinet is increased instantaneously due to faults including short circuit and the like, a crack is reserved between a cabinet door and a cabinet door frame through the deformation of the stopping piece, and accordingly the pressure in the power distribution cabinet 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 dead bolt; With locking power distribution cabinet under normal operation, and can the authorized pressure abrupt release when short trouble takes place, and can prevent effectively that the cabinet door from being washed open.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 10.This dead bolt 10 and lock core relative fixed, so that through operator's key or operating grip, can be so that dead bolt 10 together rotates with lock core.On the surface that snap close 20 is installed on the doorframe of power distribution cabinet with door-plate is faced, the position corresponding with dead bolt.Snap close 20 is made up of two blocks of isolated plates of almost parallel, and one of them plate 201 for example is fastened on the doorframe through screw etc., and another plate 202 links to each other with plate 201 through coupling part 203, and by its support.Between two plates, form opening 204, whole snap close 20 is mounted to and makes that opening 204 is relative with dead bolt 10.As shown in Figure 3; Under blocking; Dead bolt 10 is rotated the position with the doorframe approximate vertical, makes the locked end of dead bolt 10 be inserted in the opening 204 of U-shaped of snap close 20, thereby when attempting to open cabinet door (along the direction shown in the arrow A); Another plate 202 of U-shaped snap close 20 stops dead bolt 10, and and then stops door to be opened.When operating personnel work, can be through inserting key rotation lock core, make dead bolt 10 be in the position with plate 202 almost parallels, thus, remove stopping of 202 pairs of dead bolts 10 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.Pressure moment in the power distribution cabinet increase might cause that door lock (comprising dead bolt and snap close) is damaged, cabinet door and doorframe distortion and cabinet door might be washed open by pressure, this just existence near the personnel power distribution cabinet are caused the risk of human casualty accident.
The utility model content
In view of the above problems and according to the associated safety regulation of protection of electric fixtures, need when fault such as short circuit occurring, can the pressure in the power distribution cabinet be discharged fast, and the cabinet Men Buhui that guarantees power distribution cabinet is washed open and is avoided taking place personnel casualty accidents.
The utility model is to make in view of the above problems; And the purpose of the utility model is to provide a kind of snap close; Pressure moment in power distribution cabinet is when increasing; This snap close can discharge the cabinet door that also prevents power distribution cabinet simultaneously fast with this pressure to be washed open owing to the pressure effect, and then guarantees personal security.According to the utility model; A kind of snap close is provided; This snap close can with dead bolt match incompatible locking and two mechanical parts of release, wherein snap close is arranged on one of them of said two mechanical parts, and dead bolt is arranged on another of said two mechanical parts; With the locked position of coupler that engages with snap close and and the unlocked position that breaks away from of snap close between move; Said snap close comprises the support component that is fixed on the said mechanical part and by said support member supports and the stop part that engages with said dead bolt at locked position of coupler, when said dead bolt puts on power on the said stop part and surpasses predetermined threshold, and said stop part deformable.
Through deformable stop part is set, when fault and the instantaneous increase of pressure in the power distribution cabinet such as being short-circuited, the distortion of said stop part allows the cabinet door to open predetermined gap, thereby discharges the pressure in the power distribution cabinet.
Preferably, in said snap close, be provided with back-off, said back-off stops that said dead bolt and said snap close break away from when said stop part is out of shape, and prevents that thus the cabinet door from being washed open, has avoided the generation personnel casualty accidents reliably.
Preferably, said stop part is the elastically deformable element; And said elastically deformable element is a spring leaf.
Preferably, said support component comprises back-off, and said tipping upside down on stops said dead bolt and said snap close to be thrown off when said stop part is out of shape.
Said spring leaf is a U-shaped, and the top of two arms of said U-shaped spring leaf is fixed on the said support component, and at said locked position of coupler, the bottom of said U-shaped spring leaf engages with said dead bolt.
Said support component comprises the base plate that is fixed on the said mechanical part and is arranged on the L shaped support section that falls on this base plate, and two arms of said U-shaped spring leaf are fixed on the two ends of horizontal arm of said L shaped support section.Said back-off is arranged on the said said horizontal arm that falls L shaped support section; And extend the bottom towards said U-shaped spring leaf; And be formed with hook portion at its extending end, and the opposite position place, bottom of said U-shaped spring leaf is formed with the opening that supplies said hook portion to pass through.Said dead bolt with part that said snap close engages in form porosely, the hook portion of said back-off can be inserted in the said hole.
As a kind of concrete form, doorframe and cabinet door 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 is provided with above-mentioned snap close is provided also, this power distribution cabinet also is provided with the pressure release portion, forms pressure relief channels when increasing with the pressure in power distribution cabinet.
According to the power distribution cabinet of the utility model, can be in the accident of being short-circuited and the pressure loss in the power distribution cabinet when increasing, utilize the pressure release portion to form pressure relief channels, thereby make that the pressure in the power distribution cabinet is discharged fast.
Preferably, this pressure release portion is formed by the part that weakens that the lamina tecti that is installed in the power distribution cabinet top perhaps is provided with in the power distribution cabinet top board.
Preferably, said lamina tecti is installed on the top board opening of said power distribution cabinet through 3 fixed forms.Specifically; Said lamina tecti comprises two catching grooves on a side; And on a relative side, comprise a hole, 3 of said lamina tecti snap onto on the edge of said top board opening and utilize screw to be fastened on the opposite edges of said top board opening through said hole and realize through said two catching grooves.
Alternative is that said pressure release portion (3) is for being arranged on the part that weakens on the said power distribution cabinet top board.
Description of drawings
Other characteristics, purpose and industry of the utility model and technical significance will be through being more readily understood in the detailed description with reference to the accompanying drawings, among the figure:
Fig. 1 is the phantom drawing that dead bolt of the prior art is shown;
Fig. 2 is the phantom drawing that snap close of the prior art is shown;
Fig. 3 is the phantom drawing that the state that dead bolt shown in Figure 1 and snap close shown in Figure 2 be bonded with each other is shown;
Fig. 4 is the phantom drawing that illustrates according to the snap close of the utility model preferred implementation;
Fig. 5 is the phantom drawing that the dead bolt that matches with snap close shown in Figure 4 is shown;
Fig. 6 illustrates the phantom drawing of lamina tecti that is installed in the top of power distribution cabinet as the pressure release portion;
Fig. 7 is the phantom drawing that the power distribution cabinet that snap close shown in Figure 4 and lamina tecti shown in Figure 6 are installed is shown;
Fig. 8 is the enlarged drawing that the part that circle A is centered among Fig. 7 is shown; And
Fig. 9 is the enlarged drawing that the part that circle B is centered among Fig. 7 is shown.
The specific embodiment
Below, with reference to accompanying drawing 4-9 the snap close according to the preferred implementation of the utility model is described.Wherein, Fig. 4 illustrates the phantom drawing according to the utility model preferred implementation.
As shown in Figure 4, snap close 2 comprises support component 21.This support component 21 comprises base plate 211, is formed with two or more holes on this base plate 211, to be used for whole snap close is fixed to the doorframe of power distribution cabinet.Base plate 211 is provided with down L shaped support section 212, and this support section 212 can be integrally formed with base plate 211, for example forms through the bending metal sheet, perhaps also can open formation in 211 minutes with base plate, and connect together through methods such as welding then.Falling on the horizontal arm 213 of L shaped support section 211, be provided with elastic component 22, these elastic component 22 integral body are made up of spring leaf, have elasticity to make it itself.Elastic component 22 is roughly U-shaped, and insert in the opening that forms on the two ends of the above-mentioned horizontal arm 213 that falls L shaped support section 212, so that elastic component 22 is fixed on the support section through bending on the top of two arms of U-shaped.But, also can adopt other modes such as welding, bonding that elastic component 22 is fixed on the support section, the utility model is not so limited.
Dangle the bottom of elastic component 22 of the U-shaped that gets off as stop part from falling the horizontal arm 213 of L shaped support section 212, will lean with dead bolt 1, as shown in Figure 8.Thus; Form at the stop part that makes it through rotating lock tongue 1 to constitute and to engage with elastic component 22 (against) situation under, the pressure in power distribution cabinet is during above predetermined threshold, elastic component 22 is out of shape under the effect of dead bolt 1; Make the cabinet door can open predetermined gap, and release pressure.
In addition; Under the excessive situation of elastic component 22 distortion, throw off in order to prevent dead bolt 1 and snap close 2, on the above-mentioned horizontal arm 213 that falls L shaped support section 212, roughly the centre position is provided with back-off 214; This back-off 214 dangles from horizontal arm 213, and has hook portion 215 at the end that dangles.On the bottom of elastic component 22,, form porose 221 corresponding to the position of back-off 214.And as shown in Figure 5, the corresponding part of dead bolt 1 is provided with slotted hole 11.Thus, when elastic component 22 elastic deformations, back-off 214 passes the hole 221 that forms on elastic component 22 bottoms and is inserted in the slotted hole 11 on the dead bolt 1, and hook portion 215 tangles dead bolt 1, prevents that thus dead bolt 1 and snap close 2 from throwing off, and then prevents that the cabinet door from being washed open by pressure.
As shown in Figure 7, in order to discharge the pressure in the power distribution cabinet fast, also be provided with pressure release portion 3 at the top of power distribution cabinet.In this embodiment, this pressure release portion 3 is made up of lamina tecti.As shown in Figure 6, this lamina tecti 3 adopts the sheet material identical with power distribution cabinet to form, and thickness is identical or slightly thin with the thickness of the sheet material of power distribution cabinet.As shown in Figure 6, be formed with two catching grooves 31 in that a side of lamina tecti 3 is spaced apart, and form porose 32 in a relative side.This catching groove 31 can and bend the part that lamina tecti 3 stamping-outs open through local stamping-out lamina tecti and form.
As shown in Figure 9, when lamina tecti 3 is installed, the catching groove 31 of lamina tecti 3 is snapped on the edge 101 of top board opening of power distribution cabinet 100, and be fixed on the opposite edges (not shown) of power distribution cabinet top board opening through the opposite side of screw with lamina tecti 3.
Pressure moment in power distribution cabinet is when increasing, except snap close distortion release portion pressure, and the loose both sides perk of lamina tecti 3, thus produce pressure relief channels, the pressure in the power distribution cabinet is discharged fast.
Adopt three fixing lamina tectis to constitute pressure release portion 3 although described in the above; But instruction according to the utility model; Those skilled in the art can contemplate other pressure releasing structures, weaken part as being provided with at the top, when increasing with the pressure in power distribution cabinet; This weakens part tears, thereby pressure is discharged.Therefore, the utility model is not limited to above-described embodiment.In addition; Although adopted two catching grooves to be connected in the superincumbent lamina tecti with a screw mode; But, also can adopt the mode of two screws and a catching groove or three screws, even can adopt other connected modes; As long as can lamina tecti be connected on the power distribution cabinet top board, and, pressure can make lamina tecti perk formation pressure relief channels get final product when increasing.
In addition, although in the above-described embodiment, the stop part that engages with dead bolt adopts the spring leaf form, can adopt other forms of stop part, as long as the deformable when the power that receives dead bolt surpasses predetermined threshold of this stop part.
In addition; Although in the superincumbent embodiment; Coming the dead bolt of locking and release power distribution cabinet with rotating manner is that example has been explained the utility model; But the utility model is not limited to this, and incompatible realization similar effects also can match the dead bolt of the snap close of the utility model and sliding type locking that is similar to latch and release.
According to the snap close of the utility model, during the instantaneous increase of the pressure in power distribution cabinet, elastic component 22 distortion of snap close allow the cabinet door to open predetermined gap thus, discharge the pressure in the power distribution cabinet.
According to the snap close of the utility model, in snap close, be provided with back-off, this back-off can stop dead bolt to break away from snap close, thus, prevents that the cabinet door from being washed open by pressure, and then prevents the accident of causing casualties.
According to the snap close of the utility model, be provided with the pressure release portion at the top of power distribution cabinet, during the instantaneous increase of the pressure in power distribution cabinet, this pressure release portion forms pressure relief channels, thereby the pressure in the power distribution cabinet is discharged fast thus.
Although the preferred implementation with reference to the utility model is described the utility model above; But the utility model is not limited thereto; Those skilled in the art can make various modifications and modification at this, and these are revised and modification all should be included in the protection domain of the utility model.
Claims (15)
1. snap close; This snap close (2) can with dead bolt (1) match incompatible locking and two mechanical parts of release; Wherein snap close (2) is arranged on one of them of said two mechanical parts; And dead bolt (1) is arranged on another of said two mechanical parts; With the locked position of coupler that engages with snap close (2) and and the unlocked position that breaks away from of snap close between move, said snap close (2) comprises the support component (21) that is fixed on the said mechanical part and is supported and at the stop part (22) that locked position of coupler engages with said dead bolt (1), it is characterized in that by said support component (21); When said dead bolt (1) puts on power on the said stop part (22) and surpasses threshold value, said stop part (22) deformable.
2. snap close as claimed in claim 1 is characterized in that, said stop part (22) is the elastically deformable element.
3. snap close as claimed in claim 2 is characterized in that, said elastically deformable element is a spring leaf.
4. snap close as claimed in claim 3 is characterized in that, said support component (21) comprises back-off (214), and said back-off (214) stops said dead bolt (1) and said snap close (2) to be thrown off when said stop part (22) is out of shape.
5. snap close as claimed in claim 4; It is characterized in that said spring leaf (22) is a U-shaped, and the top of two arms of said U-shaped spring leaf is fixed on the said support component (21); And at said locked position of coupler, the bottom of said U-shaped spring leaf engages with said dead bolt (1).
6. snap close as claimed in claim 5; It is characterized in that; Said support component (21) comprises being fixed in the base plate (211) on the said mechanical part and being arranged on and falls L shaped support section (212) on this base plate (211), and two arms of said U-shaped spring leaf (22) are fixed on the two ends of horizontal arm (213) of said L shaped support section (212).
7. snap close as claimed in claim 6; It is characterized in that; Said back-off (214) is arranged on the said said horizontal arm (213) that falls L shaped support section (212); And extend the bottom towards said U-shaped spring leaf, and be formed with hook portion at its extending end, and the opposite position place, bottom of said U-shaped spring leaf is formed with the opening that supplies said hook portion to pass through.
8. snap close as claimed in claim 7 is characterized in that, said dead bolt (1) with part that said snap close (2) engages in form porose (11), the hook portion of said back-off (214) can be inserted in the said hole (11).
9. like each described snap close in the claim 1 to 8, it is characterized in that doorframe and cabinet door that said two mechanical parts are respectively power distribution cabinets.
10. power distribution cabinet; This power distribution cabinet (100) comprises cabinet door and doorframe; It is characterized in that; This power distribution cabinet (100) also comprises dead bolt (1) and like each described snap close (2) in the claim 1 to 8, this snap close is installed on one of them of said cabinet door and doorframe, and dead bolt (1) is installed on another of said cabinet door and doorframe.
11. power distribution cabinet as claimed in claim 10 is characterized in that, said power distribution cabinet (100) also comprises pressure release portion (3), and this pressure release portion (3) forms pressure relief channels when being formed at the pressure increase in the power distribution cabinet (100).
12. power distribution cabinet as claimed in claim 11 is characterized in that, said pressure release portion (3) is for being installed in the lamina tecti (3) on the said power distribution cabinet top board opening.
13. power distribution cabinet as claimed in claim 12 is characterized in that, said lamina tecti (3) is installed on the top board opening of said power distribution cabinet through 3 fixed forms.
14. power distribution cabinet as claimed in claim 13; It is characterized in that; Said lamina tecti (3) comprises two catching grooves on a side; And on a relative side, comprise a hole, 3 of said lamina tecti go up and utilize screw to be fastened on the opposite edges of said top board opening through said hole and realize through the edge (101) that said two catching grooves snap onto said top board opening.
15. power distribution cabinet as claimed in claim 11 is characterized in that, said pressure release portion (3) is for being arranged on the part that weakens on the said power distribution cabinet top board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202623314U CN202284421U (en) | 2011-07-22 | 2011-07-22 | Lock catch and power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202623314U CN202284421U (en) | 2011-07-22 | 2011-07-22 | Lock catch and power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202284421U true CN202284421U (en) | 2012-06-27 |
Family
ID=46295948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202623314U Expired - Lifetime CN202284421U (en) | 2011-07-22 | 2011-07-22 | Lock catch and power distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202284421U (en) |
Cited By (1)
| 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 |
-
2011
- 2011-07-22 CN CN2011202623314U patent/CN202284421U/en not_active Expired - Lifetime
Cited By (2)
| 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 |
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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: 20120627 |
|
| CX01 | Expiry of patent term |