CN204991632U - Circuit breaker operating device's resetting means - Google Patents
Circuit breaker operating device's resetting means Download PDFInfo
- Publication number
- CN204991632U CN204991632U CN201520705036.XU CN201520705036U CN204991632U CN 204991632 U CN204991632 U CN 204991632U CN 201520705036 U CN201520705036 U CN 201520705036U CN 204991632 U CN204991632 U CN 204991632U
- Authority
- CN
- China
- Prior art keywords
- spring
- trip
- bar
- ping
- center
- 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.)
- Active
Links
Landscapes
- Breakers (AREA)
Abstract
Circuit breaker operating device's resetting means installs the trip(ping) bar on the lever including lever and pivot, resetting means still including center end foot torsional spring, on the spring boss that its suit set up on the lever, the center end foot of the one end of this center end foot torsional spring and the spring boss connect, the ordinary end foot of the other end of this center end foot torsional spring and the trip(ping) bar connect. Through torsional spring driven reset mode and structural design, utilize the relative motion of mechanism's component to produce the extrusion to the torsional spring, produce deforming force, can improve reset action's performance to one of them torsional spring pin adopts the internal rotation design, can also effectively reduce the shared space of elastic element.
Description
Technical field
The utility model relates to a kind of operating mechanism of circuit breaker, particularly a kind of resetting means of operating mechanism of circuit breaker, belongs to low voltage electrical apparatus technology field.
Background technology
The reliability requirement of existing market to circuit breaker is more and more higher, and operating mechanism is as the important part of circuit breaker, and its reliability is most important.Operating mechanism generally includes quadric chain, tripping mechanism and resetting means, and the lever of quadric chain is provided with rotating snap close connecting rod and trip(ping) bar, and snap close connecting rod is provided with latch hook, and trip(ping) bar is provided with lock tooth.Normally to close a floodgate or under gate-dividing state, trip(ping) bar is under the driving of the reset force of resetting means, and the lock tooth on trip(ping) bar engages with the latch hook on snap close connecting rod at circuit breaker, lock to make the quadric chain of operating mechanism; In tripping operation process, trip(ping) bar is under the driving of tripping mechanism, and the lock tooth on it is separated with the latch hook on snap close connecting rod.Obviously, the function of resetting means resets for driving trip(ping) bar, engage with the latch hook on snap close connecting rod to make the lock tooth on trip(ping) bar, therefore, the reset function of resetting means, be the requisite function of circuit breaker operation mechanism, the quality of resetting means reliability directly affects the reliability of operating mechanism work.As everyone knows, the reset force of resetting means needs to be a kind of elastic force, and it is provided by flexible member usually, existing operating mechanism is done usually to adopt spring as elasticity unit, its defect takes up room greatly, and assembling and setting difficulty, utilizes spring reset performance undesirable.For this reason, flexible elastic structure used instead by some operating mechanisms, as the Wave shape spring gonosome of plastic material, the elastomeric crimp of waveform is utilized to produce the reset that deformation power realizes trip(ping) bar, but this Technology Restriction is in material reason, easy generation plastic deformation causes inefficacy, cannot ensure the reliability of circuit breaker operation mechanism product.
Summary of the invention
The purpose of this utility model is to provide a kind of and resets reliable and reduce the resetting means of the circuit breaker operation mechanism taken up room.
For achieving the above object, the utility model have employed following technical scheme:
A kind of resetting means of circuit breaker operation mechanism, the trip(ping) bar 3 comprising lever 1 and be pivoted on lever 1, described resetting means also comprises center-side pin torsion spring 2, it is sleeved on the spring boss 11 of setting on lever 1, the center-side pin 22 of one end of this center-side pin torsion spring 2 is connected with described spring boss 11, and the common end pin 21 of the other end of this center-side pin torsion spring 2 is connected with described trip(ping) bar 3.
Described center-side pin torsion spring 2 also comprises screw type spring body 20, the center-side pin 22 of one end of described center-side pin torsion spring 2 stretches in this spring body 20 from one end of described spring body 20, and the common end pin 21 of the other end of described center-side pin torsion spring 2 stretches to this spring body 20 from the other end of described spring body 20.
Preferred further: the center-side pin 22 of described center-side pin torsion spring 2 stretches in spring body 20 from one end of described spring body 20, and described center-side pin 22 is through the center line 2a of this spring body 20.
Preferred further: the spring boss 11 on described lever 1 is cylindrical boss, and on this cylindrical boss, be provided with axial deep trouth 12, the spring body 20 of described center-side pin torsion spring 2 is sleeved on described cylindrical boss, and the center-side pin 22 of the center-side pin torsion spring 2 is simultaneously installed in the axial deep trouth 12 on this cylindrical boss.
Described trip(ping) bar 3 is provided with clamp button of the spring 31, rotates the pivot hole 30 of installing trip(ping) bar 3 and the lock tooth 3a coordinated with snap close 4, and the common end pin 21 of described center-side pin torsion spring 2 is stuck on described clamp button of the spring 31.
Preferred further: described clamp button of the spring 31 is arranged on the termination of described trip(ping) bar 3.
Preferred further: described lever 1 is also provided with pivot 10, and it can be pivoted in the pivot hole 30 on trip(ping) bar 3.Further: described pivot 10 is arranged on the same axis with the spring boss 11 on lever 1, and they are separately positioned on the both sides of lever 1.
Preferred further: described lever 1 is pivoted in housing, snap close 4 and trip(ping) bar 3 are pivoted on lever 1 and hasp is connected, U-shaped bar is connected between snap close 4 and circuit breaker handle, contact supports that 5 are arranged with the coaxial pivotable of lever 1, and be arranged on lever 1 by torsion spring, contact support 5 is provided with moving contact, is provided with the fixed contact that arrange corresponding to moving contact in housing.
Preferred further: also to comprise tripping coil 8 and bimetal leaf 7, lay respectively at contact and support 5 both sides; Described tripping coil 8 is provided with striker towards one end of trip(ping) bar 3, and when short circuit, the striker of tripping coil 8 ejects and directly backs down trip(ping) bar 3; Side and the dropout be arranged on trip(ping) bar 3 of described bimetal leaf 7 are linked up with 6 and are oppositely arranged, and when circuit overloads, bimetal leaf 7 bending touching dropout hook 6 drives trip(ping) bar 3 and snap close 4 to trip; Described trip(ping) bar 3 is also provided with and when breaker closing, spacing spacing preiection 3b is stopped to dropout hook 6.
The advantage of the resetting means of circuit breaker operation mechanism of the present utility model is, adopt the element that center-side pin torsion spring resets as actuator's lever, torsion spring two ends pin is placed in two diverse locations of lever and trip(ping) bar respectively, the reset mode driven by torsion spring and structural design, the relative motion of organ is utilized to produce extruding to torsion spring, produce deformation power, can realize resetting to the driving of lever, improve the performance of homing action, improve the reliability of assembling and setting, solve existing product and to reset insecure problem; And one of them torsion spring pin adopts inward turning design, effectively can also reduce the space shared by flexible member.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the resetting means of circuit breaker operation mechanism of the present utility model.
Fig. 2 is the dorsal view of Fig. 1.
Fig. 3 is the perspective view of the center-side pin torsion spring of the resetting means shown in Fig. 1.
Fig. 4 is the perspective view of the trip(ping) bar of the resetting means shown in Fig. 1.
Fig. 5 is the perspective view of the lever of the resetting means shown in Fig. 1.
Embodiment
Below in conjunction with the embodiment that accompanying drawing 1 to 5 provides, further illustrate the embodiment of the resetting means of circuit breaker operation mechanism of the present utility model.
See Fig. 1,2, the trip(ping) bar 3 that the resetting means of circuit breaker operation mechanism of the present utility model comprises lever 1, center-side pin torsion spring 2 and is pivoted on lever 1, center-side pin torsion spring 2 is sleeved on the spring boss 11 of setting on lever 1, as shown in Figure 3, this center-side pin torsion spring 2 comprises two ends, wherein the center-side pin 22 of one end is connected (see Fig. 1,5) with the spring boss 11 on lever 1, and the common end pin 21 of the other end of this center-side pin torsion spring 2 is connected (see Fig. 2) with described trip(ping) bar 3.
Certainly, circuit breaker operation mechanism also must comprise other ordinary elements and structure, as being also pivoted on the snap close 4 on lever 1, as shown in Figure 2, snap close 4 is provided with latch hook 4a, and latch hook 4a coordinates with the lock tooth 3a engagement/disengagement on trip(ping) bar 3, that is: normally to close a floodgate or under gate-dividing state at circuit breaker, lock tooth 3a engages with latch hook 4a, locks to make the quadric chain of operating mechanism; In tripping operation process, lock tooth 3a is separated with latch hook 4a.Specifically as shown in Figure 2, described lever 1 is pivoted in housing, snap close 4 and trip(ping) bar 3 are pivoted on lever 1 and hasp is connected, U-shaped bar is connected between snap close 4 and circuit breaker handle, contact supports that 5 are arranged with the coaxial pivotable of lever 1, and being arranged on lever 1 by torsion spring, contact support 5 is provided with moving contact, is provided with the fixed contact that arrange corresponding to moving contact in housing.Also comprise tripping coil 8 and bimetal leaf 7, lay respectively at contact and support 5 both sides; Described tripping coil 8 is provided with striker towards one end of trip(ping) bar 3, and when short circuit, the striker of tripping coil 8 ejects and directly backs down trip(ping) bar 3; Side and the dropout be arranged on trip(ping) bar 3 of described bimetal leaf 7 are linked up with 6 and are oppositely arranged, and when circuit overloads, bimetal leaf 7 bending touching dropout hook 6 drives trip(ping) bar 3 and snap close 4 to trip; Described trip(ping) bar 3 is also provided with and when breaker closing, spacing spacing preiection 3b is stopped to dropout hook 6.
A useful feature of the present utility model is the structure that have employed center-side pin torsion spring 2, and the function of center-side pin torsion spring 2 orders about trip(ping) bar 3 to reset, and the lock tooth 3a namely ordered about on trip(ping) bar 3 engages with the latch hook 4a on snap close 4.The concrete structure of center-side pin torsion spring 2 is as shown in Figure 1 to Figure 3: described center-side pin torsion spring 2 comprises screw type spring body 20, common end pin 21 and center-side pin 22; The center-side pin 22 being positioned at center-side pin torsion spring 2 one end stretches from one end of screw type spring body 20 to this spring body 20; The common end pin 21 being positioned at the other end of center-side pin torsion spring 2 stretches to spring body 20 from the other end of spring body 20.A kind of preferred scheme is that the center-side pin 22 of described center-side pin torsion spring 2 stretches in spring body 20 from one end of spring body 20, and this center-side pin 22 is through the center line 2a of spring body 20.Obviously, compared with the common torsion spring holding pin all outwards to stretch with two, the advantage of center-side pin torsion spring 2 of the present utility model is: structure takes up room less, and is easy to install.Existing product is due to the restriction by the torsion spring number of turns, so the resiliency characteristics designed under minimum elastic force meets the condition of reset reliability requirement, often make to there will be the excessive problem of elastic force when maximum functional is out of shape, thus adverse effect can be formed to reseting performance, and the special mounting structure of center-side pin torsion spring 2 of the present utility model also makes the number of turns increasing spring become possibility, in other words, this design the resiliency characteristics of center-side pin torsion spring 2 is designed more meet the desirable of circuit breaker operation mechanism homing action performance.
Another useful feature of the present utility model is the structure that lever 1 have employed the spring boss 11 with mounting center end pin torsion spring 2, that is: described lever 1 is provided with spring boss 11 and pivot 10; Spring boss 11 is for being set with center-side pin torsion spring 2, and pivot 10 is pivoted on in the pivot hole 30 on trip(ping) bar 3.A kind of concrete structure of preferred spring boss 11 is as shown in Figure 5: described spring boss 11 is cylindrical boss, cylindrical boss is provided with axial deep trouth 12, the spring body 20 of center-side pin torsion spring 2 is sleeved on cylindrical boss, and the center-side pin 22 of center-side pin torsion spring 2 is installed in axial deep trouth 12 simultaneously.The layout structure of some preferred spring boss 11 is as shown in Fig. 1,2 and 5: as described in lever 1 on spring boss 11 arrange on the same axis (namely the axis of spring boss 11 is on the extended line of the axis of pivot 10) with pivot 10, and they are separately positioned on the both sides of lever 1, that is: spring boss 11 is in the outside of lever 1, and pivot 10 is in the inside of lever 1.Obviously, such concrete structure and the advantage of layout structure are compact conformations, are convenient to especially very much install.
Another useful feature of the present utility model is that trip(ping) bar 3 have employed the structure with clamp button of the spring 31, that is: described trip(ping) bar 3 is provided with clamp button of the spring 31, pivot hole 30 and lock tooth 3a; The common end pin 21 of described center-side pin torsion spring 2 is stuck on clamp button of the spring 31, and pivot hole 30 installs the pivot 10 on lever 1 for pivotable.A kind of concrete structure of preferred clamp button of the spring 31 is as shown in Figure 1 and Figure 4: shown clamp button of the spring 31 is arranged on (as shown in Figure 4) on the upper end of trip(ping) bar 3.The advantage of this structure is the distribution of power system rationally, because the power that trip(ping) bar 3 acts on is more, the lock tooth 3a of the inboard of its upper end such as, there is the engaging force effect of latch hook 4a, lower end 32 there is tripping force effect, clamp button of the spring 31 is arranged on the outside of the upper end of trip(ping) bar 3, make the elastic force application point of center-side pin torsion spring 2 can be roughly equal relative to the arm of force of pivot hole 30 with engaging force application point relative to the arm of force of pivot hole 30, and increase the design of clamp button of the spring 31, do not affect the structural design such as original pivot hole 30 and lock tooth 3a on trip(ping) bar 3.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. the resetting means of a circuit breaker operation mechanism, comprise lever (1) and be pivoted on the trip(ping) bar (3) on lever (1), it is characterized in that: described resetting means also comprises center-side pin torsion spring (2), it is sleeved on the upper spring boss (11) arranged of lever (1), the center-side pin (22) of one end of this center-side pin torsion spring (2) is connected with described spring boss (11), and the common end pin (21) of the other end of this center-side pin torsion spring (2) is connected with described trip(ping) bar (3).
2. the resetting means of circuit breaker operation mechanism according to claim 1, it is characterized in that: described center-side pin torsion spring (2) also comprises screw type spring body (20), the center-side pin (22) of one end of described center-side pin torsion spring (2) is interior from one end of described spring body (20) to this spring body (20) to be stretched, and the common end pin (21) of the other end of described center-side pin torsion spring (2) stretches to this spring body (20) from the other end of described spring body (20).
3. the resetting means of circuit breaker operation mechanism according to claim 2, is characterized in that: described center-side pin (22) is through the center line (2a) of this spring body (20).
4. the resetting means of circuit breaker operation mechanism according to claim 2, it is characterized in that: the spring boss (11) on described lever (1) is cylindrical boss, and on this cylindrical boss, be provided with axial deep trouth (12), the spring body (20) of described center-side pin torsion spring (2) is sleeved on described cylindrical boss, and the center-side pin (22) of the center-side pin torsion spring (2) is simultaneously installed in the axial deep trouth (12) on this cylindrical boss.
5. the resetting means of circuit breaker operation mechanism according to claim 1, it is characterized in that: described trip(ping) bar (3) is provided with clamp button of the spring (31), rotates the pivot hole (30) of installing trip(ping) bar (3) and the lock tooth (3a) coordinated with snap close (4), and the common end pin (21) of described center-side pin torsion spring (2) is stuck on described clamp button of the spring (31).
6. the resetting means of circuit breaker operation mechanism according to claim 5, is characterized in that: described clamp button of the spring (31) is arranged on the termination of described trip(ping) bar (3).
7. the resetting means of circuit breaker operation mechanism according to claim 5, it is characterized in that: described lever (1) is also provided with pivot (10), it can be pivoted in the pivot hole (30) on trip(ping) bar (3).
8. the resetting means of circuit breaker operation mechanism according to claim 7, it is characterized in that: described pivot (10) is arranged on the same axis with the spring boss (11) on lever (1), and they are separately positioned on the both sides of lever (1).
9. the resetting means of circuit breaker operation mechanism according to claim 1, it is characterized in that: described lever (1) is pivoted in housing, snap close (4) and trip(ping) bar (3) are pivoted on the upper and hasp of lever (1) and are connected, U-shaped bar is connected between snap close (4) and circuit breaker handle, contact supports that (5) are arranged with lever (1) coaxial pivotable, and be arranged on lever (1) by torsion spring, contact supports that (5) are provided with moving contact, is provided with the fixed contact that arrange corresponding to moving contact in housing.
10. the resetting means of circuit breaker operation mechanism according to claim 9, is characterized in that: also comprise tripping coil (8) and bimetal leaf (7), lay respectively at contact support (5) both sides; Described tripping coil (8) is provided with striker towards one end of trip(ping) bar (3), and when short circuit, the striker of tripping coil (8) ejects and directly backs down trip(ping) bar (3); Side and the dropout be arranged on trip(ping) bar (3) of described bimetal leaf (7) are linked up with (6) and are oppositely arranged, when circuit overloads, bending touching dropout hook (6) of bimetal leaf (7) drives trip(ping) bar (3) and snap close (4) to trip; Described trip(ping) bar (3) is also provided with and when breaker closing, spacing spacing preiection (3b) is stopped to dropout hook (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705036.XU CN204991632U (en) | 2015-09-11 | 2015-09-11 | Circuit breaker operating device's resetting means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705036.XU CN204991632U (en) | 2015-09-11 | 2015-09-11 | Circuit breaker operating device's resetting means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204991632U true CN204991632U (en) | 2016-01-20 |
Family
ID=55125973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520705036.XU Active CN204991632U (en) | 2015-09-11 | 2015-09-11 | Circuit breaker operating device's resetting means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204991632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109087829A (en) * | 2017-06-14 | 2018-12-25 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
-
2015
- 2015-09-11 CN CN201520705036.XU patent/CN204991632U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109087829A (en) * | 2017-06-14 | 2018-12-25 | 浙江正泰电器股份有限公司 | Miniature circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107768155B (en) | Circuit breaker operating mechanism | |
| CN103545150A (en) | Breaker operating mechanism | |
| US20150085439A1 (en) | Fastening mechanism for electronic device | |
| CN204118012U (en) | The operating mechanism of circuit breaker | |
| US20070234515A1 (en) | Hinge | |
| CN204991632U (en) | Circuit breaker operating device's resetting means | |
| CN106229233A (en) | A kind of miniature circuit breaker | |
| CN101472411A (en) | Cover-turning type electronic device casing | |
| CN204632700U (en) | The tripping system of residual current circuit breaker | |
| CN209949179U (en) | Simple and easy reliable general type centre gripping support | |
| CN205810723U (en) | Mould the operating mechanism of shell RCCB | |
| CN209500742U (en) | A kind of hand trip wrench device | |
| CN110718404A (en) | Semiconductor equipment control system | |
| CN208078302U (en) | A kind of socket convenient for plug plug | |
| CN201730956U (en) | Torsion variable hinge | |
| CN102800502B (en) | Hand shank fixing component of switch device, and switch device | |
| CN206194674U (en) | Novel manual and electric operating mechanism of circuit breaker | |
| CN205943983U (en) | Miniature circuit breaker | |
| CN210422201U (en) | Intelligent electric control lock | |
| CN205278720U (en) | Wire clamping device | |
| CN202786815U (en) | Door cover assembly of roller washing machine | |
| CN2690360Y (en) | cord reel | |
| CN208461093U (en) | A kind of equivalent resistance fixed mechanism of Vehicular rechargeable socket | |
| CN207503860U (en) | A kind of transmission mechanism of high-voltage combined electrical apparatus | |
| CN207338164U (en) | Electrical contact system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |