CN218896603U - Arc extinguishing device of circuit breaker - Google Patents

Abstract

The utility model discloses an arc extinguishing device of a circuit breaker, which comprises a shell, wherein an arc extinguishing assembly is arranged in an inner cavity of the shell, the bottom of the shell is provided with an opening, fixing blocks are fixedly connected to the left side and the right side of the bottom of the shell, limiting grooves are formed in the sides, away from each other, of the two fixing blocks, a protective cover is arranged at the bottom of the shell, grooves are formed in the positions, close to the left side and the right side, of the top of the protective cover, and through the arrangement of a fixing mechanism, the arc clamping plate, the T-shaped inserted rod, the compression spring, the cross rod, the chain wheel, the chain, the hand shaking wheel and the limiting plate are mutually matched, so that the arc extinguishing assembly is conveniently fixed, damage caused by collision is avoided, and through the mutual matching of the parts of a worm, the worm wheel, the threaded pipe, the threaded rod, the moving block and the limiting block, the arc extinguishing assembly and the shell are conveniently mounted, and the using effect of the device is improved.

Description

Arc extinguishing device of circuit breaker

Technical Field

The utility model relates to the technical field of circuit breaker equipment, in particular to an arc extinguishing device of a circuit breaker.

Background

The circuit breaker generally comprises an arc extinguishing device, a tripping device, a contact system, an operating mechanism and the like, and when the moving contact and the fixed contact of the circuit breaker are separated, an arc can be generated, and as the moving contact moves along the contact arm of the moving contact in the accommodating cavity of the arc extinguishing grid plate, the arc can enter the arc extinguishing chamber in the generating process, and is led into the space between the grid plates through the arc extinguishing grid plate, and is cut into short arcs connected in series, so that the arc is thinned and the arc pressure drop is quickly improved, and the arc extinguishing effect is achieved.

The current device is inconvenient to fix stable to the arc extinguishing subassembly to lead to it to collide with easily, and then lead to its damage, and current device is inconvenient to install stable to the shield simultaneously, also is inconvenient to install it, makes to lead to device result in the result of use poor.

Disclosure of Invention

In order to overcome the defects in the prior art, one of the purposes of the utility model is to provide an arc extinguishing device of a circuit breaker.

One of the purposes of the utility model is realized by adopting the following technical scheme:

the utility model provides a circuit breaker arc extinguishing device, includes the casing, the casing inner chamber is equipped with the arc extinguishing component, the bottom of casing is the opening setting, the equal fixedly connected with fixed block in bottom left and right sides department of casing, two the spacing groove is all seted up to one side that the fixed block kept away from mutually, the bottom of casing is equipped with the protective cover, the top of protective cover is close to left and right sides department and all sets up flutedly, two the fixed block peg graft respectively in the inner chamber of adjacent recess, two the slot is all seted up to one side that the recess kept away from mutually, two elongated slot inner chambers all are equipped with installation mechanism, the top of arc extinguishing component is close to the first rectangle opening of all having seted up of left and right sides, the second rectangle opening of all having been seted up to the left and right sides of casing near intermediate position department, third rectangle opening of top intermediate position department of protective cover is seted up, the bottom of arc extinguishing component runs through third rectangle open-ended inner chamber, the casing inner chamber is equipped with fixing mechanism.

Further, fixed establishment includes two backup pads, two backup pads are fixed connection respectively in the casing inner chamber left and right sides and are close to intermediate position department, two the equal fixedly connected with first bearing in top of backup pad, two the inner chamber of first bearing is all run through and is equipped with the pivot, the top of casing is close to the equal fixedly connected with second bearing in left and right sides department, two the inner chamber of adjacent second bearing is run through respectively on the pivot top to extend to the outside, be located the left side the top fixedly connected with hand wheel of pivot, a plurality of blind hole has been seted up in the hand wheel outside, the top of casing is close to left side department and has been seted up first spout, the inner chamber swing joint of first spout has first slider, the top fixedly connected with T shape inserted bar T shape structure horizontal one end grafting is in the inner chamber of adjacent blind hole.

Further, the through hole has been seted up in the left side of first slider, the inner chamber of through hole runs through and is equipped with the horizontal pole, both ends are about the horizontal pole respectively with first spout inner chamber left and right sides fixed connection, the outside left end department cover of horizontal pole is equipped with compression spring, both ends are about compression spring respectively with first spout inner chamber left side and first slider fixed connection.

Further, the two outer sides of the rotating shafts are fixedly sleeved with chain wheels close to the top end, chains are arranged between the two chain wheels, and the two chain wheels are connected through chain transmission.

Further, two the equal fixedly connected with drive gear in bottom of pivot, two the rear side of drive gear has all meshed and has removed rack board, two remove the equal fixedly connected with arc splint in one side that rack board is relative, just arc splint and arc extinguishing component laminate each other and set up, two the equal fixedly connected with second slider in bottom that removes rack board, the equal fixedly connected with limiting plate in intermediate position department is close to the casing inner chamber left and right sides, two the second spout has all been seted up at the top of limiting plate, two the inner chamber at adjacent second spout is respectively swing joint to the second slider.

Further, the installation mechanism comprises a knob, the knob is located the top of arc extinguishing subassembly and is close to left side department, the bottom fixedly connected with worm of knob, the bottom and the long groove inner chamber swing joint of worm, the front side of worm is close to bottom department meshing and has the worm wheel, the centre of a circle department of worm wheel runs through and is equipped with the screwed pipe, long groove inner chamber bottom is close to intermediate position department fixedly connected with connecting block, the last fixedly connected with third bearing of connecting block, the inner chamber of third bearing is run through to the right-hand member of screwed pipe, the inner chamber of screwed pipe runs through and is equipped with the threaded rod, the right-hand member fixedly connected with movable block of threaded rod, the right side fixedly connected with stopper of movable block, the stopper is pegged graft at the inner chamber of spacing groove.

Further, the top and the bottom of the moving block are fixedly connected with third sliding blocks, the top and the bottom of the inner cavity of the long groove are provided with third sliding grooves, and the two third sliding blocks are respectively and movably connected with the inner cavity of the third sliding grooves.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the fixing mechanism is arranged, and the arc extinguishing assembly is conveniently fixed by the mutual matching of the components of the supporting plate, the rotating shaft, the transmission gear, the movable rack plate, the arc clamping plate, the T-shaped inserted bar, the compression spring, the cross rod, the chain wheel, the chain, the hand-operated wheel and the limiting plate, so that the arc extinguishing assembly is prevented from being damaged due to collision;

2. according to the utility model, the installation mechanism is arranged, and the components of the worm, the worm wheel, the threaded pipe, the threaded rod, the moving block and the limiting block are mutually matched, so that the arc extinguishing assembly and the shell are conveniently installed, and the using effect of the device is improved.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model, as well as the preferred embodiments thereof, together with the following detailed description of the utility model, given by way of illustration only, together with the accompanying drawings.

Drawings

Fig. 1 is a sectional view of the present embodiment;

fig. 2 is an enlarged view at a in fig. 1 of the present embodiment;

fig. 3 is an enlarged view at B in fig. 2 of the present embodiment;

fig. 4 is an enlarged view of fig. 1C of the present embodiment;

fig. 5 is an enlarged view of fig. 1D of the present embodiment.

In the figure: 1. a housing; 2. an arc extinguishing assembly; 3. a protective cover; 4. a fixed block; 5. a worm; 6. a worm wheel; 7. a threaded tube; 8. a threaded rod; 9. a moving block; 10. a limiting block; 11. a support plate; 12. a rotating shaft; 13. a transmission gear; 14. moving the rack plate; 15. an arc clamping plate; 16. a T-shaped insert rod; 17. a compression spring; 18. a cross bar; 19. a sprocket; 20. a chain; 21. hand-operated wheels; 22. and a limiting plate.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, the present utility model provides the following technical solutions:

example 1:

the utility model provides a circuit breaker arc extinguishing device, including casing 1, casing 1 inner chamber is equipped with arc extinguishing component 2, casing 1's bottom is the opening setting, casing 1's bottom left and right sides department all fixedly connected with fixed block 4, two fixed block 4 are kept away from one side all and are offered spacing groove, casing 1's bottom is equipped with protective cover 3, protective cover 3's top is close to left and right sides department and all is offered flutedly, two fixed block 4 peg graft respectively in adjacent fluted inner chamber, two fluted sides that keep away from mutually all are offered the elongated slot, two elongated slot inner chamber all are equipped with installation mechanism, arc extinguishing component 2's top is close to left and right sides all and have been offered first rectangle opening, casing 1's left and right sides is close to intermediate position department and all has been offered the second rectangle opening, protective cover 3's top intermediate position department has been offered the third rectangle opening, arc extinguishing component 2's bottom runs through the inner chamber of third rectangle opening, casing 1 inner chamber is equipped with fixing mechanism;

the fixing mechanism comprises two supporting plates 11, the two supporting plates 11 are respectively and fixedly connected at the left side and the right side of the inner cavity of the shell 1 and close to the middle position, the tops of the two supporting plates 11 are fixedly connected with first bearings, the inner cavities of the two first bearings are respectively and fixedly connected with second bearings through rotating shafts 12, the tops of the two rotating shafts 12 respectively penetrate through the inner cavities of adjacent second bearings and extend to the outer side, a hand crank wheel 21 is fixedly connected at the top of the rotating shaft 12 on the left side, a plurality of blind holes are formed in the outer side of the hand crank wheel 21, a first sliding groove is formed in the position, close to the left side, of the top of the shell 1, a first sliding block is movably connected with the inner cavity of the first sliding groove, a T-shaped inserting rod 16 is fixedly connected with the top of the first sliding block, one transverse end of the T-shaped inserting rod 16 is inserted into the inner cavity of the adjacent blind hole, a through hole is formed in the left side of the first sliding block, the inner cavity of the through hole is penetrated and provided with a cross rod 18, the left end and the right end of the cross rod 18 are respectively fixedly connected with the left side and the right side of the inner cavity of the first chute, the left end and the right end of the outer side of the cross rod 18 are sleeved with a compression spring 17, the left end and the right end of the compression spring 17 are respectively fixedly connected with the left side of the inner cavity of the first chute and the first sliding block, the positions, close to the top ends, of the outer sides of the two rotating shafts 12 are fixedly sleeved with chain wheels 19, a chain 20 is arranged between the two chain wheels 19 and is in transmission connection with the two chain wheels 19 through the chain 20, the bottom ends of the two rotating shafts 12 are fixedly connected with a transmission gear 13, the rear sides of the two transmission gears 13 are respectively meshed with a movable rack plate 14, one side, opposite to the two movable rack plates 14, are respectively fixedly connected with an arc-shaped clamping plate 15, the arc-shaped clamping plate 15 is mutually attached to the arc-extinguishing component 2, the bottoms of the two movable rack plates 14 are respectively fixedly connected with a second sliding block, limiting plates 22 are fixedly connected to the left side and the right side of the inner cavity of the shell 1 at positions close to the middle, second sliding grooves are formed in the tops of the two limiting plates 22, and two second sliding blocks are respectively and movably connected to the inner cavities of the adjacent second sliding grooves;

the arc extinguishing assembly 2 is placed in the inner cavity of the shell 1, the T-shaped inserted rod 16 is pushed leftwards at the moment, the T-shaped inserted rod 16 moves leftwards under the limit of the first sliding groove and the first sliding block, the compression spring 17 is compressed, one transverse end of the T-shaped inserted rod 16 is far away from the inner cavity of the blind hole, the hand wheel 21 is rotated at the moment, the adjacent rotating shaft 12 fixed on the hand wheel 21 is rotated, the rotating shaft 12 positioned on the left side is rotated through the chain wheel 19 and the chain 20, the two rotating shafts 12 simultaneously drive the adjacent transmission gears 13 to rotate, the movable rack plate 14 meshed with the adjacent transmission gears 13 moves towards the middle under the action of the second sliding groove and the second sliding block, the arc extinguishing assembly 2 is fixed through the arc clamping plate 15, after the fixing is completed, the T-shaped inserted rod 16 is loosened, one transverse end of the T-shaped inserted rod 16 is inserted into the inner cavity of the blind hole, and the rotating shaft 12 is fixed.

Example 2:

the mounting mechanism comprises a knob, the knob is positioned at the position, close to the left side, of the top of the arc extinguishing component 2, the bottom of the knob is fixedly connected with a worm 5, the bottom end of the worm 5 is movably connected with an inner cavity of a long groove, the position, close to the bottom end, of the front side of the worm 5 is meshed with a worm wheel 6, the circle center of the worm wheel 6 is penetrated and provided with a threaded pipe 7, the bottom, close to the middle position, of the inner cavity of the long groove is fixedly connected with a connecting block, the upper part of the connecting block is fixedly connected with a third bearing, the right end of the threaded pipe 7 penetrates through the inner cavity of the third bearing, the inner cavity of the threaded pipe 7 is penetrated and provided with a threaded rod 8, the right end of the threaded rod 8 is fixedly connected with a moving block 9, the top and the bottom of the moving block 9 are fixedly connected with third sliding blocks, the top and the bottom of the inner cavity of the long groove are respectively and movably connected with a third sliding groove, the two third sliding blocks are respectively and movably connected with the inner cavity of the third sliding groove, the right side of the moving block 9 is fixedly connected with a limiting block 10, and the limiting block 10 is spliced in the inner cavity of the limiting groove;

the two fixing blocks 4 are respectively inserted into the inner cavities of the adjacent grooves, the bottom of the arc extinguishing assembly 2 just penetrates through the inner cavity of the third rectangular opening, at the moment, a left mounting mechanism is taken as an example, the knob is rotated, so that the worm 5 fixed on the knob is rotated, the worm 5 is rotated and simultaneously drives the worm wheel 6 which is meshed with the worm wheel to rotate, the threaded pipe 7 is rotated, the moving block 9 is moved rightward under the action of the third sliding groove and the third sliding block under the action of the threaded rod 8, the limiting block 10 fixed on the moving block 9 is inserted into the inner cavity of the limiting groove, and the left mounting mechanism is not repeated, so that the installation between the shell 1 and the arc extinguishing assembly 2 is stable, and the using effect of the device is improved.

Working principle: firstly, placing the arc extinguishing assembly 2 in the inner cavity of the shell 1, pushing the T-shaped inserted link 16 leftwards at the moment, enabling the T-shaped inserted link 16 to move leftwards under the limit of a first chute and a first sliding block, compressing the compression spring 17, enabling one transverse end of the T-shaped inserted link 16 to be far away from the inner cavity of the blind hole, rotating the hand wheel 21 at the moment, enabling the adjacent rotating shaft 12 fixed on the hand wheel 21 to rotate, enabling the rotating shaft 12 positioned on the left side to rotate through the chain wheel 19 and the chain 20, enabling the two rotating shafts 12 to rotate while driving the adjacent transmission gears 13 to rotate, enabling the movable rack plate 14 meshed with the adjacent transmission gears 13 to move towards the middle under the effect of a second chute and a second sliding block, fixing the arc-shaped inserted link 16 through the arc clamping plate 15, and loosening the T-shaped inserted link 16 after the fixing is completed, make horizontal one end of T shape inserted bar 16T shape structure peg graft in the inner chamber of blind hole, and then fix pivot 12, peg graft respectively two fixed blocks 4 in the inner chamber of adjacent recess, arc extinguishing subassembly 2 bottom runs through the open-ended inner chamber of third rectangle just this moment, take left installation mechanism as the example, rotatory knob this moment, thereby make worm 5 rotatory fixed on the knob, worm 5 rotatory drives the worm wheel 6 rotatory with the meshing, thereby make screwed pipe 7 rotatory, screwed pipe 7 rotatory simultaneously under the effect of threaded rod 8, make movable block 9 remove rightwards under the effect of third spout and third slider, thereby make stopper 10 grafting on movable block 9 be in the inner chamber of spacing groove, be located left installation mechanism as above, do not repeat here, be convenient for install between casing 1 and the arc extinguishing subassembly 2 stably, improve the result of use of device.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims (7)

1. The utility model provides a circuit breaker arc extinguishing device, includes the casing, the casing inner chamber is equipped with the arc extinguishing subassembly, its characterized in that: the bottom of casing is the opening setting, the equal fixedly connected with fixed block in bottom left and right sides department of casing, two the spacing groove has all been seted up to one side that the fixed block kept away from mutually, the bottom of casing is equipped with the protective cover, the top of protective cover is close to left and right sides department and all sets up flutedly, two the fixed block is pegged graft respectively in the inner chamber of adjacent recess, two the elongated slot has all been seted up to one side that the recess kept away from mutually, two elongated slot inner chambers all are equipped with mounting mechanism, first rectangle opening has all been seted up near the left and right sides in the top of arc extinguishing component, the second rectangle opening has all been seted up near intermediate position department in the left and right sides of casing, third rectangle opening has been seted up to the top intermediate position department of protective cover, the bottom of arc extinguishing component runs through third rectangle open-ended inner chamber, the casing inner chamber is equipped with fixing mechanism.

2. The circuit breaker arc chute of claim 1 wherein: the fixed establishment includes two backup pads, two backup pads are fixed connection respectively in the casing inner chamber left and right sides and are close to intermediate position department, two the equal fixedly connected with first bearing in top of backup pad, two the inner chamber of first bearing is all run through and is equipped with the pivot, the top of casing is close to the equal fixedly connected with second bearing in left and right sides department, two the pivot top runs through the inner chamber of adjacent second bearing respectively to extend to the outside, be located the left side the top fixedly connected with hand wheel of pivot, a plurality of blind hole has been seted up in the hand wheel outside, the top of casing is close to left side department and has been seted up first spout, the inner chamber swing joint of first spout has first slider, the top fixedly connected with T shape inserted bar of first slider, the horizontal one end of T shape inserted bar T shape structure is pegged graft in the inner chamber of adjacent blind hole.

3. The circuit breaker arc extinguishing device of claim 2, wherein: the left side of first slider has seted up the through-hole, the inner chamber of through-hole runs through and is equipped with the horizontal pole, both ends are about the horizontal pole respectively with first spout inner chamber left and right sides fixed connection, the outside left end department cover of horizontal pole is equipped with compression spring, both ends about compression spring respectively with first spout inner chamber left side and first slider fixed connection.

4. The circuit breaker arc extinguishing device of claim 2, wherein: the two outer sides of the rotating shaft are fixedly sleeved with chain wheels close to the top end, a chain is arranged between the two chain wheels, and the two chain wheels are connected through chain transmission.

5. The circuit breaker arc extinguishing device of claim 2, wherein: the two bottom of pivot is equal fixedly connected with drive gear, two the rear side of drive gear has all meshed and has removed the rack board, two remove the equal fixedly connected with arc splint of the relative one side of rack board, just arc splint and arc extinguishing component laminating each other set up, two the equal fixedly connected with second slider in bottom of removing the rack board, the equal fixedly connected with limiting plate of intermediate position department is close to the casing inner chamber left and right sides, two the second spout has all been seted up at the top of limiting plate, two the inner chamber at adjacent second spout is respectively swing joint to the second slider.

6. The circuit breaker arc chute of claim 1 wherein: the installation mechanism comprises a knob, the knob is located the top of arc extinguishing subassembly and is close to left side department, the bottom fixedly connected with worm of knob, the bottom and the long groove inner chamber swing joint of worm, the front side of worm is close to bottom department meshing has the worm wheel, the centre of a circle department of worm wheel runs through and is equipped with the screwed pipe, long groove inner chamber bottom is close to intermediate position department fixedly connected with connecting block, the last fixedly connected with third bearing of connecting block, the inner chamber of third bearing is run through to the right-hand member of screwed pipe, the inner chamber of screwed pipe runs through and is equipped with the threaded rod, the right-hand member fixedly connected with movable block of threaded rod, the right side fixedly connected with stopper of movable block, the stopper is pegged graft in the inner chamber of spacing groove.

7. The circuit breaker arc chute of claim 6 wherein: the top and the bottom of movable block all fixedly connected with third slider, the third spout has all been seted up to elongated slot inner chamber top and bottom, two the inner chamber at the third spout is respectively swing joint to the third slider.

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