CN201829855U - Safety partition plate mechanism of drawer type circuit breaker - Google Patents
Safety partition plate mechanism of drawer type circuit breaker Download PDFInfo
- Publication number
- CN201829855U CN201829855U CN 201020555911 CN201020555911U CN201829855U CN 201829855 U CN201829855 U CN 201829855U CN 201020555911 CN201020555911 CN 201020555911 CN 201020555911 U CN201020555911 U CN 201020555911U CN 201829855 U CN201829855 U CN 201829855U
- Authority
- CN
- China
- Prior art keywords
- push rod
- burst disk
- pedestal
- partition plate
- safety partition
- 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 relates to a safety partition plate mechanism of a drawer type circuit breaker, comprising a base and safety partition plates, wherein stepping bosses are distributed on the inner sides of the upper edge and the lower edge of the base at intervals; the safety partition plates comprise an inner safety partition plate and an outer safety partition plate, multiple sets of cutter inserting holes arranged in pairs are distributed on the inner safety partition plate and the outer safety partition plate at intervals, one sides of the inner safety partition plate and the outer safety partition plate are distributed with stepping slots matched with the stepping bosses on the base at intervals, the other sides are provided with driving crowned teeth, and the inner safety partition plate and the outer safety partition plate are stacked together and then connected with the base through one stepping slot structure of the stepping bosses; a push rod cavity is arranged on the base, a push rod and a resetting spring thereof are contained in the push rod cavity, and the resetting spring is installed between the push rod and a base rear cover behind the base; the push rod has an eudipleural structure and is provided with a plate body on which two eudipleural driving guide slots are arranged, the outer ends of the two driving guide slots are straight, and the inner sides of the two driving guide slots are inclined to both sides; and the driving guide slots of the push rod are embedded with the driving crowned teeth on the inner safety partition plate and the outer safety partition plate in a sliding mode. The safety partition plate mechanism has the advantages of being convenient in installation and maintenance, steady and accurate in movement and cost saving.
Description
Technical field
The utility model relates to a kind of burst disk mechanism, and particularly a kind of burst disk mechanism of the drawer type frame circuit breaker of being convenient to install and safeguarding belongs to the field of accessories of low-voltage electrical apparatus.
Background technology
As most important controller switching equipment in the low-voltage distribution system, frame circuit breaker obtains application more and more widely, and withdrawable circuit breaker has leading position in the frame circuit breaker product, and it mainly is made up of drawout chassis and body.When withdrawable circuit breaker needs repairing or other whens operation, body can be shaken out in drawout chassis, body is separated with major loop, thereby realize power operation.In order to satisfy the safer instructions for use of operator, when body separates with major loop, the centre has additional the burst disk that has been used for buffer action, simultaneously, when body is connected with drawout chassis, by the burst disk trigger mechanism burst disk is opened, body slotting tool and bridge-shaped contact are pegged graft, the realization body is connected with major loop.Along with improving constantly of the functional and reliability requirement of drawout chassis, the switching of burst disk is accurate, mounts and dismounts easy performance to drawer and plays key effect.
The push rod external member of existing a kind of withdrawable circuit breaker and mounting means as shown in Figure 1 and Figure 2, it comprises push rod 1, cassette holder 2, lid 3, back-moving spring 4, cassette holder 2 and cassette holder 3 are assembled into the assembly in a band chamber, can place push rod 1 and back-moving spring 4 in its chamber; Load onto back-moving spring 4 and push rod 1 in the cassette holder 2 successively, after push rod 1 and back-moving spring 4 are inconsistent, cover lid 3 again, lid 2 is undertaken spacing with lid 3 by boss, and glue together by stick between the two, form an assembly and be positioned in the installing hole of pedestal.There is following problem in said structure: 1. since inconsistent push rod 1 and back-moving spring 4 be installed in the chamber that lid 2 and lid 3 form, and glue together by stick, its installation procedure is complicated and dismounting is quite difficult, when needs during to part exchangings such as push rod 1 and back-moving springs 4, need integral replacing push rod 1, cassette holder 2, lid 3, back-moving spring 4, brought expensive therefore for installation, maintenance.2. cassette holder 2 and cassette holder 3 be by heat ductile forming, its shape more complicated, cost of manufacture height.Therefore, consider that from user and economy angle it is convenient to develop a kind of I﹠M, the less relatively device of burst disk train of mechanism component parts is to improve the deficiency of existing product.
The utility model content
The purpose of this utility model provides a kind of withdrawable circuit breaker burst disk mechanism simple, easy to maintenance, that save cost of assembling.
The purpose of this utility model is achieved through the following technical solutions:
A kind of withdrawable circuit breaker burst disk mechanism comprises:
Pedestal, on this pedestal lower limb inboard all between the cloth boss of stepping down;
Burst disk, comprise the interior burst disk and the outer burst disk that can stack together slidingly, the cloth slotting tool holes of forming being provided with between on the inside and outside burst disk more, the slot to make way that cloth cooperates with the boss of stepping down on the described pedestal between one side of inside and outside burst disk, the opposite side of inside and outside burst disk is provided with the driving double wedge, and inside and outside burst disk stacks together and is connected with described pedestal by the boss of stepping down-slot to make way structure; It is characterized in that:
Described pedestal is provided with the push rod chamber, includes push rod and back-moving spring thereof in this push rod chamber, and this back-moving spring is installed between the pedestal bonnet at the described push rod and the pedestal back side;
Described push rod is the enantiomorphic form structure, and it has a plate body, and this plate body is provided with symmetrical two driving gathering sills, and the outer end of these two driving gathering sills is straight and inner to tilt to both sides; Driving double wedge sliding gomphosis on the driving gathering sill of this push rod and the described inside and outside burst disk.
Further:
Push rod chamber on the described pedestal is a step trough.
Push rod chamber on the described pedestal is along depth direction narrowing toward each end broad in the middle.
Push rod chamber on the described pedestal and the slotting tool hole on the burst disk are vertical setting.
Described pedestal bonnet is that labyrinth type is connected with the junction of pedestal.
The utlity model has following advantage:
1. push rod and back-moving spring directly are installed in the push rod chamber of pedestal, part kind and quantity are installed reduce, and install simple.
2. after push rod and back-moving spring directly were installed in the push rod chamber of pedestal, back-moving spring and rear end pedestal bonnet were inconsistent, and the effect of spring force is directly reliable, and convenient disassembly, has brought convenience to product maintenance, has reduced maintenance cost.
With the inconsistent pedestal bonnet of back-moving spring by screw on pedestal, the pedestal bonnet is provided with the phase partition installing hole, makes things convenient for the installation of phase partition.
4. the labyrinth type design is adopted in the junction of pedestal bonnet and pedestal, and wriggling therebetween has the multistage separate slot, has increased alternate electric clearance, has increased security of products.
Description of drawings
Fig. 1 is the push rod external member structural representation of existing a kind of withdrawable circuit breaker;
Fig. 2 is the push rod external member and the mounting means structural representation of existing a kind of withdrawable circuit breaker;
Fig. 3 is the schematic diagram of this programme embodiment pedestal, push rod, burst disk part;
Fig. 4 is the local enlarged diagram of this programme embodiment push rod part;
Fig. 5 is this programme embodiment pedestal, pedestal bonnet schematic diagram;
Fig. 6 is the local enlarged diagram of this programme embodiment pedestal, pedestal bonnet;
Fig. 7 is the inside and outside burst disk structural representation of this programme embodiment;
Fig. 8 is the step trough structural representation for the push rod chamber on this programme embodiment pedestal;
Fig. 9 is that this programme embodiment push rod places the push rod mucosal structure schematic diagram on the pedestal;
Figure 10 is that push rod chamber on this programme embodiment pedestal is along the structural representation of depth direction narrowing toward each end broad in the middle.
Embodiment
The utility model is an a kind of withdrawable circuit breaker burst disk mechanism, comprises pedestal, burst disk, push rod and back-moving spring thereof.Describe in detail below in conjunction with Fig. 3-Figure 10.
The last lower limb of pedestal 1 inboard all between the cloth boss 19 of stepping down, pedestal 1 is provided with push rod chamber 4.
Burst disk comprises the interior burst disk 3 and the outer burst disk 2 that can stack together slidingly, the cloth slotting tool holes of forming being provided with 31 between on the inside and outside burst disk more, the slot to make way 32 that cloth cooperates with the boss 19 of stepping down on the pedestal 1 between one side of inside and outside burst disk, the opposite side of outer burst disk 3, interior burst disk 2 be furnished with between respectively with pedestal 1 on push rod chamber 4 corresponding burst disks drive double wedges 7,8, this drivings double wedge is used for inserting and is embedded into the driving gathering sill 9 that is installed on the interior push rod 6 in push rod chamber 4.Inside and outside burst disk stacks together and is connected with pedestal by the boss of stepping down-slot to make way structure.
Push rod chamber on the pedestal 1 and the slotting tool hole 31 on the burst disk are vertical setting.
Push rod chamber on the described pedestal is a step trough 13.
Push rod chamber on the described pedestal is along depth direction narrowing toward each end broad in the middle.
The utility model is to install like this: at first the rearward end of push rod 6 from pedestal 1 is installed in the push rod chamber 4 according to its operative orientation, installs back-moving spring 5 at boss place, the rear end of push rod 6 then, and cover pedestal bonnet 10 (Fig. 6).Push rod can be in the initial condition that ejects fully 6 this moments under the effect of back-moving spring, then two groups of stacked mutually burst disks 2 are installed to by resetting means with 3, keep both to have good slide relative, then two burst disks are moved to the state that mutual stacked coincidence and slotting tool hole set.At last stacked burst disk is installed in the boss 19 formed chutes of stepping down of pedestal 1: a hand is lived push rod 6, make its back-moving spring 5 be in the tightest state of compression, mutual stacked burst disk is installed in the chute of both sides up and down of pedestal, and be displaced sideways burst disk to the driving double wedge 7 of inside and outside two burst disks, 8 insert the position of embedding respectively mutually with top rod driving gathering sill groove 9, the spring pressure that discharges push rod 6 makes it return to initial condition, mutually stacked burst disk 2 and 3 relative motions have so far been finished the installation of burst disk assembly to the state of slotting tool hole closure.
As shown in Figure 9, after the installation, push rod 6 is under the reset force effect of back-moving spring 5, can move forward to the groove shoulder of the step trough 13 in the push rod chamber, and limited by the groove of step trough shoulder and to travel forward, from realizing push rod 6 Dingan County's holding position really, promptly step trough 13 has played the effect spacing to push rod 6 herein.
Push rod chamber on the pedestal is along the push rod back-moving spring stopper slot 41 that forms in the structure of depth direction narrowing toward each end broad in the middle makes push rod chamber on the pedestal as shown in figure 10.On the one hand when push rod 6 is pushed push rod chamber 4 by breaker body, push rod back-moving spring 5 length are compressed, because push rod back-moving spring 5 length are longer, there is not the guide pillar structure that it is played guiding and position-limiting action in the middle of it yet, therefore the strut buckling phenomenon easily takes place in push rod back-moving spring 5 when being compressed, cause push rod back-moving spring 5 in the process that is compressed, to bend, and lose reset function.Push rod chamber on the employing pedestal is after the structure of depth direction narrowing toward each end broad in the middle, the push rod back-moving spring stopper slot 41 that forms can be to playing position-limiting action in the compression process, the axial linearity that keeps push rod back-moving spring 5, thereby the reliability of the reset function of assurance push rod back-moving spring 5.Push rod chamber on the pedestal makes the guide frame that has possessed push rod back-moving spring 5 in the push rod chamber along the structure of depth direction narrowing toward each end broad in the middle on the other hand, thereby saved the spring guide pillar structure on the push rod 6, dwindled greatly push rod 6 overall dimension, saved material, reduced push rod 6 moulds manufacture difficulty and cost, reduced the moulding difficulty of push rod 6.
The following describes operation principle of the present utility model.
When withdrawable circuit breaker from the separation point position during to link position, push rod 6 overcomes the elastic force of back-moving spring 5 owing to the active force of body, push rod 6 slides towards the bottom direction in push rod chamber 4, at this moment, driving gathering sill 9 side direction on the push rod 6 promote burst disk 2,3 slide in opposition, make two burst disks simultaneously from about to the center position displacement of pedestal 1, two slotting tool holes on the burst disk are coincided, burst disk is in opening, is connected thereby can make the main circuit conductor of breaker body side touch main circuit by the slotting tool hole with the bridge of drawer side.When withdrawable circuit breaker during from link position to the separation point position, motion process is opposite with said process, and burst disk turns to closure state by opening, and the main circuit conductor of base side and the main circuit conductor of drawer side are reliably isolated.
What need statement is; the foregoing description only is used for the utility model is described but not limits it; therefore; for a person skilled in the art; under the situation that does not deviate from the utility model spirit and scope, it is carried out various conspicuous changes, all should be within protection range of the present utility model.
Claims (5)
1. withdrawable circuit breaker burst disk mechanism comprises:
Pedestal, on this pedestal lower limb inboard all between the cloth boss of stepping down;
Burst disk, comprise the interior burst disk and the outer burst disk that can stack together slidingly, the cloth slotting tool holes of forming being provided with between on the inside and outside burst disk more, the slot to make way that cloth cooperates with the boss of stepping down on the described pedestal between one side of inside and outside burst disk, the opposite side of inside and outside burst disk is provided with the driving double wedge, inside and outside burst disk stacks together and is connected with described pedestal by the boss of stepping down-slot to make way structure, it is characterized in that:
Described pedestal is provided with the push rod chamber, includes push rod and back-moving spring thereof in this push rod chamber, and this back-moving spring is installed between the pedestal bonnet at the described push rod and the pedestal back side;
Described push rod is the enantiomorphic form structure, and it has a plate body, and this plate body is provided with symmetrical two driving gathering sills, and the outer end of these two driving gathering sills is straight and inner to tilt to both sides; Driving double wedge sliding gomphosis on the driving gathering sill of this push rod and the described inside and outside burst disk.
2. withdrawable circuit breaker burst disk according to claim 1 mechanism is characterized in that:
Push rod chamber on the described pedestal is a step trough.
3. withdrawable circuit breaker burst disk according to claim 2 mechanism is characterized in that:
Push rod chamber on the described pedestal is along depth direction narrowing toward each end broad in the middle.
4. according to claim 2 or 3 described withdrawable circuit breaker burst disk mechanisms, it is characterized in that:
Push rod chamber on the described pedestal and the slotting tool hole on the burst disk are vertical setting.
5. withdrawable circuit breaker burst disk according to claim 1 mechanism is characterized in that:
Described pedestal bonnet is that labyrinth type is connected with the junction of pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020555911 CN201829855U (en) | 2010-09-30 | 2010-09-30 | Safety partition plate mechanism of drawer type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020555911 CN201829855U (en) | 2010-09-30 | 2010-09-30 | Safety partition plate mechanism of drawer type circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829855U true CN201829855U (en) | 2011-05-11 |
Family
ID=43968369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020555911 Expired - Lifetime CN201829855U (en) | 2010-09-30 | 2010-09-30 | Safety partition plate mechanism of drawer type circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111448728A (en) * | 2017-12-14 | 2020-07-24 | 三菱电机株式会社 | Pull-out type circuit breaker |
-
2010
- 2010-09-30 CN CN 201020555911 patent/CN201829855U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111448728A (en) * | 2017-12-14 | 2020-07-24 | 三菱电机株式会社 | Pull-out type circuit breaker |
| EP3726676A4 (en) * | 2017-12-14 | 2020-12-09 | Mitsubishi Electric Corporation | Drawer type breaker |
| CN111448728B (en) * | 2017-12-14 | 2022-03-18 | 三菱电机株式会社 | Pull-out 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |