CN101192488A - Plastic case breaker twist grip operation mechanism - Google Patents
Plastic case breaker twist grip operation mechanism Download PDFInfo
- Publication number
- CN101192488A CN101192488A CNA2006101458794A CN200610145879A CN101192488A CN 101192488 A CN101192488 A CN 101192488A CN A2006101458794 A CNA2006101458794 A CN A2006101458794A CN 200610145879 A CN200610145879 A CN 200610145879A CN 101192488 A CN101192488 A CN 101192488A
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- China
- Prior art keywords
- circuit breaker
- axle
- operation mechanism
- twist grip
- chute
- Prior art date
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- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 229920003023 plastic Polymers 0.000 title description 14
- 239000004033 plastic Substances 0.000 title description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 230000033001 locomotion Effects 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The invention relates to a rotary knob operating mechanism for a breaker which comprises a cover which can be changed with the cover plate of a breaker. The cover is installed with a pivot and one end of the pivot is fixed on the rotary knob while the other end is fixed on a toggle. Two steel shafts run parallel to each other and symmetrically positioned inside the cover, with an axis parallel to a straight wrench handle of the breaker, and a slide plate slides on and is supported by the two steel shafts. The slide plate has an insert shaft and a groove; the insert shaft is flexibly connected to a slide way of the toggle and the groove is installed with a straight handle of the breaker. The mechanism changes the rotary operation to the straight operation which is acceptable to the straight handle of the breakers.
Description
Technical field
The present invention relates to the manual-operating mechanism that a kind of breaker of plastic casing is used, particularly a kind of handle operation mechanism that the lever operated circuit breaker that transfers the rotary handle operation to of straight pull is used.
Background technology
At present the handle majority of the operating mechanism of the executive circuit on/off of the breaker of plastic casing of producing is the straight pull handle, and promptly the track pulled of handle is a straight line.For safety operation, easy to operate, be applicable to requirement such as different installing spaces, need to transfer the rotary handle operation to straight pull is lever operated, promptly the track pulled of handle rotates.It is additional twist grip operation mechanism on the straight pull handle operation mechanism that prior art satisfies one of solution of these needs, one of remarkable advantage of this scheme is to make circuit breaker have the lever operated and two kinds of functions of rotary handle operation of straight pull simultaneously, so this scheme is widely adopted.
The above-mentioned twist grip operation mechanism that uses on the existing breaker of plastic casing has two big classes, and a class is a fork type, and another kind of is slide type.The rotary handle of fork type operating mechanism drives a shift fork that rotates around fulcrum, and the straight pull handle on the circuit breaker is inserted in the socket on the shift fork.Because the movement locus of the socket on the shift fork is a circular arc, the movement locus of straight pull handle is a straight line, therefore stir in the operating process of straight pull handle at shift fork, the straight pull handle take place inevitably with shift fork on the problem of socket friction, even the problem of having a contest mutually also appears.Owing to have the sliding friction between straight pull handle and the shift fork socket and the problem of having a contest mutually, so the open defect that the fork type twist grip operation mechanism exists is to operate difficultly, causes the operating physical force that need execute inhomogeneous, and serviceability is not good enough.The rotary handle of slide type operating mechanism drives a straight-line slide plate, and the straight pull handle on the circuit breaker is inserted in the socket on the slide plate, and the movement locus of socket and straight pull handle is straight line.Utility model patent number provides a kind of device of stirring of breaker of plastic casing handle for 92224360.3 prior art, this stirs device is slide type, be characterized in: the rotation axis that rotary handle is housed slides in the shaft hole of support, the inner of rotating shaft is provided with the tooth bar meshed gears on the slide plate, slide plate is installed in the chute of support, and chute is provided with the socket of straight pull handle.When rotary handle rotated, driven gear rotated, and gear rotation driving gear bar and slide plate are done the operation motion along the chute moving linearly thereby drive straight wrench handle.The major defect of the prior art is: owing to the transmission mechanism complexity of being made up of rack-and-pinion and chute, need make with a large amount of metals, so the manufacturing cost height, production efficiency is low; By primary elements such as thereon support, rotation axis, gear, tooth bar, slide plate, chutes stressed and wear-resisting requirement is arranged all, and a large amount of metals have been used, therefore cause the product heaviness inevitably, even can lose the value of using on the light and handy breaker of plastic casing requiring; Because gear, tooth bar engagement are sliding friction, and are subjected to the restriction of structure itself and manufacturing cost, the machining accuracy of rack-and-pinion is restricted, and therefore, the hard problem of the operation of the prior art still can not obtain desirable improvement.
In sum, the major defect of the twist grip operation mechanism of the circuit breaker of prior art is: operation is hard, uses inconvenient; Owing to difficultly need add long handle, therefore take the installing space of bigger preciousness, thereby the scope of application be restricted; Used metalwork is too much, makes the product heaviness, even can not satisfy the light and handy requirement of breaker of plastic casing; Complex structure, the manufacturing cost height.
Summary of the invention
Purpose of the present invention, be to overcome the defective of above-mentioned technology, a kind of twist grip operation mechanism of operating light, simple in structure, easy manufacturing, volume is little, in light weight, cost is low, the scope of application is wide circuit breaker is provided, is particularly useful for light and handy breaker of plastic casing.
For achieving the above object, the present invention adopts following technical scheme.
The twist grip operation mechanism of circuit breaker of the present invention has a lid, and it can exchange with the cover plate on the circuit breaker.A pivot is installed on the described lid pivotally, and an end of pivot stretches to outside the lid, and the other end stretches in the lid.The outer end of lid that stretches to of described pivot is fixedlyed connected with rotary handle, and an end that stretches in the lid is fixedlyed connected with shifting part, and the appropriate location in pivot axis axle center is provided with a chute on shifting part.Two steel axles are fixedly mounted on the boss in the lid symmetrically, and the axis of steel axle is parallel with the direction of motion of the straight wrench handle of circuit breaker.Slide plate by two guide holes on it by expansion bearing on two steel axles, and can on the steel axle, endwisely slip along it neatly.Adorn an inserts axle on the slide plate, also have a groove on the described slide plate, the straight wrench handle on the circuit breaker inserts in this groove.
Be with roller on the inserts axle, the inserts axle that has roller inserts in the chute of shifting part, and when the inserts axle was mobile in chute, pulley rolled on runner wall, to reduce the frictional force between chute and the inserts axle.When manual rotary handle is done exercises outside lid when rotating, rotary handle rotates by the shifting part that pivot drives in the lid, shifting part drives the embedding axle that has roller by the chute on it and moves, embed axle drive slide plate and move axially along the steel axle, slide plate is done operation by the straight wrench handle on the driving of the groove on it circuit breaker and is moved.
The slightly larger in diameter of guide hole is slided on axle to guarantee guide hole flexibly in the diameter of steel axle.The size of the diameter of the length of guide hole, aperture, pitch of holes and steel axle satisfies mechanistic not condition of self-locking.
On the cylinder of the two ends of described steel axle, be processed into flat shape,, strengthen the intensity of fixedlying connected and the reliability of steel axle and lid for the fastening usefulness of securing member.
The movement locus of groove overlaps with the movement locus of circuit breaker straight pull handle.Stirring the slide plate of circuit breaker straight pull handle and the movement locus of the groove on it is straight line.
The twist grip operation mechanism of circuit breaker of the present invention is operated light, simple in structure, easy manufacturing, volume is little, cost is low, and the scope of application is wide.
Description of drawings
Fig. 1 is the profile 3 dimensional drawing of the twist grip operation mechanism embodiment of circuit breaker of the present invention.
Fig. 2 is the 3 dimensional drawing of internal structure of the twist grip operation mechanism embodiment of circuit breaker of the present invention.
Fig. 3 is the 3 dimensional drawing of slide plate of the twist grip operation mechanism embodiment of circuit breaker of the present invention.
Embodiment
Below be an embodiment of the twist grip operation mechanism of breaker of plastic casing of the present invention, the twist grip operation mechanism of breaker of plastic casing of the present invention is not limited to following examples.
As shown in Figure 1, the lid 5 that the twist grip operation mechanism of breaker of plastic casing of the present invention has plastics to make, it can exchange with the cover plate (not shown) on the circuit breaker.If circuit breaker needs straight wrench handle operation, then use the panel of cover plate as circuit breaker; If circuit breaker needs the rotary handle operation, then change cover plate with lid 5.Be understood that according to foregoing description, two kinds of functions of use of straight wrench handle operation and rotary handle operation that circuit breaker of the present invention has simultaneously are to realize by the exchange of lid 5 with cover plate, therefore, whole zero ones of twist grip operation mechanism all need be installed on the lid 5, and can exchange with the exchange of cover plate is whole with lid 5.
As shown in Figure 1 and Figure 2, the twist grip operation mechanism of circuit breaker of the present invention has a pivot 12 to be installed in pivotally on the lid 5, pivot 12 stretches to lid 5 outer ends fixedlys connected with rotary handle 10, the end that pivot 12 stretches to 5 li on lid is fixedlyed connected with shifting part 3, when the rotary handle outside being in lid 5 rotated, shifting part 3 follows pivot 12 and rotary handle 10 rotates together.The appropriate location in pivot axis 12 axle center is provided with a chute 6 on described shifting part 3, and chute 6 is oval (not shown), and its major axis is along the radial arrangement of pivot 12.
As Fig. 1, shown in Figure 3, two steel axles 2 are fixedly mounted on the boss 1 in the lid 5 symmetrically, and the axis of steel axle 2 is parallel with the direction of motion of the straight wrench handle of circuit breaker.A slide plate 4 is supported on two steel axles 2 by two guide holes 8 on it, and slide plate 4 can axially sliding along steel axle 2 neatly.One inserts axle 9 is arranged on the slide plate 4, be with roller 11 on inserts axle 9, the inserts axle 9 that has roller 11 inserts in the chute 6 of shifting part 3, and inserts axle 9 can slide in chute 6.When inserts axle 9 slided in chute 6, the cylindrical of roller 11 rolled on the cell wall of chute 6, to reduce the frictional force between inserts axle 9 and the chute 6.A groove 7 is arranged on the slide plate 4, and the straight wrench handle on the circuit breaker inserts in this groove 7, and when slide plate 4 during along the axial motion of steel axle 2, the chute 7 that drives on it moves together, and chute 7 drives the straight wrench handle of circuit breakers and moves.
The operation principle of the twist grip operation mechanism of circuit breaker of the present invention as shown in Figure 1, 2, 3 is as follows: original cover plate on the circuit breaker is taken off, the cover plate 5 that will have the whole elements of twist grip operation mechanism is installed on the circuit breaker, and straight wrench handle on the circuit breaker is inserted in the groove 7 of slide plate of twist grip operation mechanism; Rotate the rotary handle 10 on the twist grip operation mechanism, rotary handle 10 drives shifting part 3 by pivot 12 and rotates, shifting part 3 drives slide plate 4 along the axial moving linearly of steel axle by chute 6 and inserts axle 9, and slide plate 4 is stirred the straight wrench handle work of circuit breaker by groove 7.
In sum because the direction of motion of slide plate 4 is straight line, and with the straight spanner handle of circuit breaker to pull direction consistent, so the frictional force between straight wrench and the groove 7 is very little, do not have the phenomenon of having a contest.Because slide plate 4 is bearing on the steel axle 2 by guide hole 8, and axle, hole processing are simple more than the processing technology of chute gear, tooth bar, and it is low to be easy to obtain economical machining accuracy so processing cost.Because in the plastic closure 5 that steel axle 2 is directly fixed, do not need as will guide rail being fixed on the lid by metallic support in the prior art, institute adopts this constructed products to be easy to more make so that structure of the present invention is simpler.
Claims (7)
1. twist grip operation mechanism that circuit breaker is used, it comprises that a lid (5), one are installed in the pivot (12) on the lid (5), a rotary handle (10) of fixedlying connected with the outer end of pivot (12), a shifting part (3) of fixedlying connected with the inner end of pivot (12) pivotally, is characterized in that:
Described shifting part (3) is provided with a chute (6);
At described lid (5) internal fixation two steel axles (2) are installed, the axis of two steel axles (2) is parallel with the direction of motion that circuit breaker directly moves wrench;
On described steel axle (2), be supported with a slide plate 4, slide plate 4 flexibly connects by two guide holes (8) on it and two steel axles (2), and can be along the axial flexible motion of steel axle (2);
Described slide plate 4 is provided with an inserts axle (9), and inserts axle (9) is actively plugged in the chute (6) on the described shifting part (3), and can slide flexibly in chute (6);
Described slide plate (4) is provided with a groove (7), and circuit breaker straight pull handle assigns in this groove (7);
When rotating rotary handle (10), rotary handle (10) rotates by pivot (12) band shifting part (3), shifting part (3) drives sliding panel (4) by chute (6) and inserts axle (9) and moves as straight line, sliding panel (4) is stirred straight wrench handle by the groove on it (7) and is moved, thereby realizes the manual operation of circuit breaker.
2. according to the twist grip operation mechanism of the circuit breaker of claim 1, it is characterized in that: a roller (11) is arranged on the described inserts axle (9), the cylindrical of roller (11) contacts with the cell wall of chute (6) and rolls on cell wall, to reduce the frictional force between inserts axle (9) and the chute (6).
3. according to the twist grip operation mechanism of the circuit breaker of claim 1, it is characterized in that: the slightly larger in diameter of described guide hole (8) is slided to guarantee that guide hole (8) is gone up flexibly at axle (2) in the diameter of steel axle (2).
4. according to the twist grip operation mechanism of the circuit breaker of claim 1, it is characterized in that: on the two ends cylinder of described steel axle (2), be processed into flat shape, for the fastening usefulness of securing member, strengthen the intensity of fixedlying connected and the reliability of steel axle (2) and lid (5).
5. according to the twist grip operation mechanism of the circuit breaker of claim 1, it is characterized in that: the size of the diameter of the length of guide hole (8), aperture, pitch of holes and steel axle (2), satisfy mechanistic not condition of self-locking.
6. according to the twist grip operation mechanism of the circuit breaker of claim 1, it is characterized in that: the movement locus of groove (7) overlaps with the movement locus of circuit breaker straight pull handle.
7. according to the twist grip operation mechanism of the circuit breaker of claim 1, it is characterized in that: stirring the slide plate (4) of circuit breaker straight pull handle and the movement locus of the groove on it (7) is straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101458794A CN101192488A (en) | 2006-11-22 | 2006-11-22 | Plastic case breaker twist grip operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101458794A CN101192488A (en) | 2006-11-22 | 2006-11-22 | Plastic case breaker twist grip operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101192488A true CN101192488A (en) | 2008-06-04 |
Family
ID=39487404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101458794A Pending CN101192488A (en) | 2006-11-22 | 2006-11-22 | Plastic case breaker twist grip operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101192488A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930881A (en) * | 2010-06-02 | 2010-12-29 | 上海诺雅克电气有限公司 | Rotating handle operating device of moulded case circuit breaker |
| CN104104026A (en) * | 2014-06-26 | 2014-10-15 | 许继电气股份有限公司 | Low-voltage drawer-type switch cabinet, drawer unit and operating mechanism |
-
2006
- 2006-11-22 CN CNA2006101458794A patent/CN101192488A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930881A (en) * | 2010-06-02 | 2010-12-29 | 上海诺雅克电气有限公司 | Rotating handle operating device of moulded case circuit breaker |
| CN104104026A (en) * | 2014-06-26 | 2014-10-15 | 许继电气股份有限公司 | Low-voltage drawer-type switch cabinet, drawer unit and operating mechanism |
| CN104104026B (en) * | 2014-06-26 | 2019-01-25 | 许继电气股份有限公司 | Low-voltage drawer switchgear, drawer unit and operating mechanism |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080604 |