CN102222861A - Novel explosion-proof distribution box - Google Patents
Novel explosion-proof distribution box Download PDFInfo
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- CN102222861A CN102222861A CN2010101494975A CN201010149497A CN102222861A CN 102222861 A CN102222861 A CN 102222861A CN 2010101494975 A CN2010101494975 A CN 2010101494975A CN 201010149497 A CN201010149497 A CN 201010149497A CN 102222861 A CN102222861 A CN 102222861A
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Abstract
The invention discloses a novel explosion-proof distribution box comprising a junction box bottom shell, a junction box cover, an explosion-proof bottom shell and an explosion-proof shell cover, wherein a threaded explosion-proof jointing surface is arranged for connecting the explosion-proof bottom shell and the explosion-proof shell cover; a modular turnoff bracket is arranged at one side of the explosion-proof bottom shell and is provided with a switch mechanism; and a modular handle is arranged at one side of the explosion-proof shell cover and is provided with a pulling shaft operation mechanism. The novel explosion-proof distribution box has the benefits that parts can be machined simply, the explosion-proof performance is reliable, the production efficiency is improved; and the equipment cost is reduced, the management cost is reduced, and the usage of metal resources is reduced.
Description
Technical field
The present invention relates to a kind of distribution box, particularly a kind of new type explosion proof distribution box.
Background technology
At present, known flame-proof type explosion-proof distribution box device mainly is by the flame proof lid, the flame proof drain pan, and illumination or power switch, the switch operating mechanism, the flame proof axle, handle, structures such as flameproof joint are formed.Its shortcoming mainly contain following some:
1. known II class C level flame-proof type explosion-proof distribution box cap opening direction is vertical unlocking, reason is that cylinder or the drain pan of seam explosion-resistant enclosure structure and the mating surface of lid are cylindrical surface, flameproof joint maximal clearance (being the maximum of the difference of two cylindrical surface inner and outer diameter) requires less than 0.15mm, and flameproof joint (is opened the direction of lid) vertically, and bonding length is greater than 25mm, two flameproof joint surface roughness Ra require to keep between the 3.2-6.3, the surface, composition surface does not allow the scuffing of colliding with, the composition surface influences explosion-proof performance after colliding with and scratching, and scratches even make product to lose explosion-proof performance.Flameproof joint requires to reach the above degree of depth of 25mm, and gap of flameproof joint requires the product below 0.15mm to be only the product that meets the explosion-proof criteria requirement, this causes existing explosion-proof electrical distribution box product all gruelling when uncapping in assembling or maintenance, necessary careful vertical unlocking or fastening, axial power thrusts control does not with great difficulty make lid stuck on shell, exerted oneself conference damage cylinder or seam flameproof joint, cause flameproof joint to lose efficacy, if flameproof joint lost efficacy, when blast in explosion-proof electrical distribution box inside, inner spark may be transmitted to explosion-proof electrical distribution box extraneous explosion gaseous environment, causes an explosion accident easily.
2. present flame-proof type explosion-proof distribution box product will guarantee effectively that in actual production shell flameproof joint maximal clearance is a relatively difficulty of 0.15mm, no matter be II class A, the B level equipment of planar structure, or the II class C level equipment of cylinder and fixing structure, all because shell processing or when spraying paint because stressed or be heated and be easy to generate distortion, the shell flameproof joint maximal clearance that actual production is come out is bigger with the theoretical value error, the gap of flameproof joint numerical value of each product differs bigger, unstable product quality.
3. if present II class C level explosion-proof electrical distribution box equipment flame proof gap of flame proof drain pan and flame proof lid when producing assembling is too little then fasten and open very difficulty, though the flame proof gap process too big unlatching more easily, the gap, composition surface does not meet requirement of explosion proof.Even the flameproof joint maximal clearance just in time guarantees 0.15mm, because the little reason that engages distance simultaneously in gap, composition surface, it is also very difficult to fasten or open shell.And explosion-proof casing adopts cylinder or fixing structure difficulty when machining and the check of product explosion suppresion surface bigger, and processing and proofer's experience and technical quality are had relatively high expectations, and man-hour is long, and production efficiency is lower, and product parts interchangeability is poor, and management cost is higher.
Known II class C level explosion-proof electrical distribution box shell adopts cylinder or seam flameproof joint structure, cover with several bolted covers and housing, each bolt centre distance requires to be not more than 120mm, and 8 above stainless steel bolts of operated by rotary motion fix flame proof housing and flame proof lid.Man-hour is long when using a plurality of bolt fastening structures to cause processing and assembling and maintenance, efficient is low, and product material consumption is many, and the waste resource does not meet the policy that economizes on resources that China advocates now.
4. present II class A, B, C level flame-proof type explosion-proof distribution box is when the inner installation of explosion-proof casing switch, plastics operating grip on the switch must align with the special metallic magnetism on the Explosion-proof cap to be used and could fasten explosion-proof electrical distribution box flame proof lid, because switch is arranged on the explosion-proof casing base plate, mechanism is installed in flame proof and covers, and the mechanism that covers is random slip or the rotating mechanism that does not have the service position to limit, if circuit breaker handle and the mechanism that covers depart from when assembling housing, the mechanism that covers can be stuck on the circuit breaker handle, cause not loam cake of the malfunctioning or basic button of mechanism, and existing mechanism need be more by the part number of part assembling, installation time is long, and the assembler is had relatively high expectations.So present explosion-proof electrical distribution box device exists switching mechanism to fall behind, the switching mechanism part is many, assembler's duration, workshop management cost height, and because of the different switching mechanism mass discrepancies that produce of assembly manipulation person drawback such as more than the big and potential safety hazard.And it is also difficult that existing explosion-proof electrical distribution box equipment carries out on-site maintenance or replacing switch and mechanism's parts.
5. when present explosion-proof electrical distribution box device uses in explosive gas atmosphere, lack the safety measure that just can uncap after guaranteeing to cut off the power supply, only on equipment, be provided with and forbid charged warning sign board of uncapping, the not mechanical interlocking measure that just can open lid after the outage, if the operator is the charged explosion-proof electrical distribution box lid of having opened under unwitting situation, energized conductor is leaked in explosive gas atmosphere cruelly, cause serious explosion accident easily.
Summary of the invention
At the deficiency of existing shortcoming and technology, the utility model provides a kind of new type explosion proof distribution box.
To achieve these goals, the measure that the present invention taked:
A kind of new type explosion proof distribution box, comprise junction box's drain pan, junction box's case lid, flame proof drain pan and flame proof cap, by being set, threaded flameproof joint connects between described flame proof drain pan and the flame proof cap, wherein the modular support that opens circuit is installed in flame proof drain pan one side, and have a switching mechanism, side at the flame proof cap is equipped with the modular handle, and has and lift an operating mechanism;
Described modular opens circuit and Control Shaft is installed in the support, Control Shaft two end devices have split washer, also be provided with axle sleeve and coupling body on the Control Shaft, wherein, switch fixedly mounts by switch bracket, switch keeper and holding screw, and also lays the break-make motion between Control Shaft and switch;
Handle on the described modular handle is installed on the handle panel by positioning sliding block, handle is connected with button by positioning sliding block and spring, wherein also be provided with handle cover on the handle, flame proof also is installed in the modular handle lifts axle, flame proof lifts axle and is provided with the flame proof axle, the flame proof axle is fixed by split washer, axle sleeve and spring, and described flame proof cap also is equipped with sign board outward.
Beneficial effect of the present invention: parts processing is simple, explosion-proof performance is reliable, be II class flame-proof type explosion-proof highest ranking product, adopt modular member that efficiency of assembling is improved more than three times, rotarily open, not limited by switching mechanism as long as open device housings, convenient and reliable, easy damaged explosion suppresion surface not during I﹠ M equipment adopts the handle design of initiative, guarantees the outage mechanical interlocking of uncapping, under the situation of not cutting off the power supply, can't open cap, just can uncap after the outage.Because adopt the flame-proof type C level structure design of innovation,, can replace II class A level and II class B level electrical apparatus for explosive atmospheres simultaneously fully so this product is not only applicable to II class C level place, improved production efficiency, reduce equipment cost, reduce management cost, reduce the use amount of metals resources.
Description of drawings
Fig. 1, structural representation of the present invention.
Embodiment
A kind of new type explosion proof distribution box, comprise junction box's drain pan 1, junction box's case lid 2, flame proof drain pan 3 and flame proof cap 4, by being set, threaded flameproof joint 5 connects between described flame proof drain pan 3 and the flame proof cap 4, wherein the modular support that opens circuit is installed in flame proof drain pan 3 one sides, and have a switching mechanism, side at flame proof cap 4 is equipped with the modular handle, and has and lift an operating mechanism; Described modular opens circuit and Control Shaft 6 is installed in the support, 6 liang of end devices of Control Shaft have split washer, also be provided with axle sleeve and coupling body 9 on the Control Shaft 6, wherein, switch 10 fixedly mounts by switch bracket 11, switch keeper 21 and holding screw 12, and also lays break-make motion 13 between Control Shaft 6 and switch; Handle 14 on the described modular handle is installed on the handle panel 15 by positioning sliding block, handle is connected with button 7 by positioning sliding block 20 and spring, wherein also be provided with handle cover 17 on the handle 14, flame proof also is installed in the modular handle lifts axle 16, flame proof lifts axle 16 and is provided with flame proof axle 18, flame proof axle 18 is fixed by split washer, axle sleeve and spring, the described flame proof cap 4 outer sign boards 8 that also are equipped with.
In the middle of the use of reality process of the present invention, threaded flameproof joint 5 is explosion-proof composition surface, flame proof cap 4 can be easily opened and be fastened in rotation, need not apply too big external force, the high request of no surface roughness, flame proof cap 4 stuck phenomenons at flame proof drain pan 3 can not take place when fastening flame proof cap 4, adopt screw thread rotation to open the purpose that design of the present invention has realized the protection flameproof joint; The flame-proof type explosion-proof distribution box of threaded flameproof joint 5 is as long as guarantee that the effective joggle number of screw thread surpasses 5 and buckles, pitch is no more than 3mm, the threaded engagement grade is a middle rank, the requirement of no surface roughness and explosion suppresion surface gap and length, and the product explosion-proof performance is more stable; Flameproof joint adopts threaded flameproof joint 5 structures, threaded flameproof joint 5 relative cylinders of processing or seam explosion suppresion surface handling ease many, experience and technical quality to housing quality inspection person and final products assembler require lower, man-hour is short, production efficiency is higher, product parts interchangeability is strong, and management cost is lower.
Modular handle band lifts an operating mechanism, this design has realized that handle 14 rotatablely moves and 18 elevating movements of flame proof axle, breakthrough solution the flame-proof type explosion-proof distribution box switch of screw thread rotation open type and a switching manipulation control difficult problem, realize effective control to miniature circuit breaker in the flame proof drain pan 3 or big electric current breaker of plastic casing; Because integral type modular structure design, this mechanism components can assemble in batches with standby, make it to become the universal component of product of the present invention, when needing completed knocked down products module being screwed in flame proof cap 4 gets final product, easy for installation, packaging efficiency compare at present known common cylinder or seam explosion separation structure operating mechanism high more than 3 times.
Modular circuit breaker supporting band operating parts switching mechanism; this design has solved miniature circuit breaker installing and fixing and control problem in the flame-proof type distribution box product that rotarily opens; be applicable to the miniature circuit breaker of various different operating electric currents and band creepage protection function; the modular operating mechanism module that this modular switching mechanism and explosion-proof shell cover forms perfect combination; can shift to an earlier date and assemble this switching mechanism in enormous quantities; the miniature circuit breaker that handle needs during the final products assembling is fixed in the module switch mechanism with two holding screws and gets final product; easy to assembly; realize the standardization assembling production of flame-proof type explosion-proof distribution box; compared to existing common flame-proof type explosion-proof distribution box production; the production efficiency of this design is higher; product quality is more stable, can shorten the management cost of explosion-proof electrical distribution box product delivery cycle and reduction assembling line greatly.
More than the use of two kinds of novelty module mechanisms, can also make the on-site maintenance work of explosion-proof electrical distribution box product become easier easily.
The mechanical interlocks of uncapping after the present invention's outage, have only when modular operating grip 14 positions and be transformed into de-energized, when pressing the button 7 of lower handle front end simultaneously, the flame proof axle 28 of handle mechanism just can eject automatically, this moment, switch also cut off the power supply, at this moment just can rotarily open flame proof cap 4, this moment, handle 14 lost control action to switch automatically, in the time of can effectively avoiding uncapping to the misoperation of switch; Handle 14 does not forward de-energized to when of the present invention if open, switch 10 not outages this moment, even push button 7, interlocking effect by handle 14 and flame proof axle 18 and switch bracket, also can't rotarily open flame proof cap 4, this design has realized the mechanical interlock action that the outage of real flame-proof type explosion-proof distribution box is uncapped, and can effectively guarantee the safety of operator and explosion-proof place facility.
Those skilled in the art's simple change and replacement in this area all are within protection scope of the present invention.
Claims (3)
1. new type explosion proof distribution box, comprise junction box's drain pan (1), junction box's case lid (2), flame proof drain pan (3) and flame proof cap (4), it is characterized in that: connect by threaded flameproof joint (5) is set between described flame proof drain pan (3) and the flame proof cap (4), wherein the modular support that opens circuit is installed in flame proof drain pan (3) one sides, and have a switching mechanism, side at flame proof cap (4) is equipped with the modular handle, and has and lift an operating mechanism.
2. new type explosion proof distribution box according to claim 1, it is characterized in that, described modular opens circuit and Control Shaft (6) is installed in the support, Control Shaft (6) two end devices have split washer, also be provided with axle sleeve and coupling body (9) on the Control Shaft (6), wherein, switch (10) fixedly mounts by switch bracket (11), switch keeper (21) and holding screw (12), and also lays break-make motion (13) between Control Shaft (6) and switch.
3. new type explosion proof distribution box according to claim 1, it is characterized in that, handle (14) on the described modular handle is installed on the handle panel (15) by positioning sliding block, handle is connected with button (7) by positioning sliding block (20) and spring, wherein also be provided with handle cover (17) on the handle (14), flame proof also is installed in the modular handle lifts axle (16), flame proof lifts axle (16) and is provided with flame proof axle (18), flame proof axle (18) is fixed by split washer, axle sleeve and spring, the outer sign board (8) that also is equipped with of described flame proof cap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010149497.5A CN102222861B (en) | 2010-04-16 | 2010-04-16 | Novel explosion-proof distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010149497.5A CN102222861B (en) | 2010-04-16 | 2010-04-16 | Novel explosion-proof distribution box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102222861A true CN102222861A (en) | 2011-10-19 |
| CN102222861B CN102222861B (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010149497.5A Expired - Fee Related CN102222861B (en) | 2010-04-16 | 2010-04-16 | Novel explosion-proof distribution box |
Country Status (1)
| Country | Link |
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| CN (1) | CN102222861B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496500A (en) * | 2011-12-27 | 2012-06-13 | 四川航天系统工程研究所 | Novel explosion-proof conversion switch |
| CN104769515A (en) * | 2012-08-24 | 2015-07-08 | 库帕技术公司 | Programmable termparature controller for hazardous location enclosures |
| CN108780985A (en) * | 2016-02-12 | 2018-11-09 | 伊顿智能动力有限公司 | Shell is arranged；Component；And method |
| CN109990094A (en) * | 2017-12-31 | 2019-07-09 | 中国人民解放军63653部队 | The sealing protection and open method of observation device under Blast Shock |
| CN112689929A (en) * | 2018-07-27 | 2021-04-20 | R.施塔尔开关设备有限责任公司 | Explosion-proof housing with split cover |
| CN115458375A (en) * | 2022-10-17 | 2022-12-09 | 明迈防爆技术(上海)有限公司 | Operating structure of explosion-proof circuit breaker |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496500A (en) * | 2011-12-27 | 2012-06-13 | 四川航天系统工程研究所 | Novel explosion-proof conversion switch |
| CN104769515A (en) * | 2012-08-24 | 2015-07-08 | 库帕技术公司 | Programmable termparature controller for hazardous location enclosures |
| CN104769515B (en) * | 2012-08-24 | 2017-07-28 | 库帕技术公司 | Programmable temperature controller for hazardous area shell |
| US9798333B2 (en) | 2012-08-24 | 2017-10-24 | Cooper Technologies Company | Programmable temperature controller for hazardous location enclosures |
| CN108780985A (en) * | 2016-02-12 | 2018-11-09 | 伊顿智能动力有限公司 | Shell is arranged；Component；And method |
| CN108780985B (en) * | 2016-02-12 | 2021-03-02 | 伊顿智能动力有限公司 | A housing arrangement; an assembly; and method |
| US11682887B2 (en) | 2016-02-12 | 2023-06-20 | Eaton Intelligent Power Limited | Enclosure arrangements; components; and methods |
| CN109990094A (en) * | 2017-12-31 | 2019-07-09 | 中国人民解放军63653部队 | The sealing protection and open method of observation device under Blast Shock |
| CN112689929A (en) * | 2018-07-27 | 2021-04-20 | R.施塔尔开关设备有限责任公司 | Explosion-proof housing with split cover |
| CN115458375A (en) * | 2022-10-17 | 2022-12-09 | 明迈防爆技术(上海)有限公司 | Operating structure of explosion-proof circuit breaker |
| CN115458375B (en) * | 2022-10-17 | 2023-06-02 | 明迈防爆技术(上海)有限公司 | Explosion-proof circuit breaker operation structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102222861B (en) | 2014-11-05 |
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