CN217035568U - Operating mechanism of high-reliability circuit breaker - Google Patents
Operating mechanism of high-reliability circuit breaker Download PDFInfo
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- CN217035568U CN217035568U CN202220538102.9U CN202220538102U CN217035568U CN 217035568 U CN217035568 U CN 217035568U CN 202220538102 U CN202220538102 U CN 202220538102U CN 217035568 U CN217035568 U CN 217035568U
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- traction rod
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Abstract
The utility model relates to an operating mechanism of a high-reliability circuit breaker, which comprises a mechanism frame, a lever, an upper connecting rod, a tension spring, a lower connecting rod, a jump buckle, a re-buckle, a traction rod and a reset tension spring, wherein the lever is rotatably arranged on the mechanism frame, the tension spring is arranged between the upper connecting rod and the lever, the lower connecting rod is in linkage fit with the upper connecting rod, the jump buckle is in linkage fit with the lower connecting rod, the re-buckle is matched with the jump buckle, the traction rod is rotatably arranged on the mechanism frame, the reset tension spring is arranged between the traction rod and the mechanism frame, a locking groove is formed in the position, corresponding to the re-buckle, of the traction rod, a small buckle is arranged at the position, corresponding to the locking groove, a locking inclined surface wrapped in the locking groove is arranged at one end of the small buckle, a bending part matched with the locking inclined surface is arranged on the re-buckle, and the limiting fit of the small buckle and the re-buckle is formed. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly and high reliability.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to an operating mechanism of a high-reliability circuit breaker.
Background
The plastic case circuit breaker is a commonly used protective electric appliance, has the functions of switching on and off load current and protecting overload and short circuit of the load current, and is widely applied to overload and short circuit protection of various power distribution systems and motors. Moulded case circuit breaker includes casing, operating device, contact system, arc extinguishing system, and current moulded case circuit breaker's operating device's structural design is unreasonable, detains again and can take place the jamming with the traction lever to the operating device's that leads to this circuit breaker operational reliability is lower, and detains again and cause the impact to the traction lever easily, makes the life of traction lever shorter.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides the high-reliability operating mechanism of the circuit breaker, which has the advantages of simple structure, stable and reliable performance and convenient and fast assembly.
In order to achieve the purpose, the operating mechanism of the high-reliability circuit breaker comprises a mechanism frame, a lever, an upper connecting rod, a tension spring, a lower connecting rod, a jump buckle, a re-buckle, a traction rod and a reset tension spring, wherein the lever is rotatably arranged on the mechanism frame, the tension spring is arranged between the upper connecting rod and the lever, the lower connecting rod is in linkage fit with the upper connecting rod, the jump buckle is in linkage fit with the lower connecting rod, the re-buckle is matched with the jump buckle, the traction rod is rotatably arranged on the mechanism frame, the reset tension spring is arranged between the traction rod and the mechanism frame, a locking groove is formed in the position, corresponding to the re-buckle, of the traction rod, a small lock buckle is arranged in the position, corresponding to the locking groove, a locking inclined surface wrapped in the locking groove is arranged at one end of the small lock buckle, a bending portion matched with the locking inclined surface is arranged on the re-buckle, and the bending portion is clamped on the locking inclined surface to form limiting fit of the small lock buckle and the re-buckle.
The structure has the advantages that the small lock catch is arranged on the draw bar, the locking inclined surface of the small lock catch wraps the locking groove of the draw bar, the small lock catch can not impact the draw bar after being buckled, the service life of the draw bar is prolonged, the buckled locking inclined surface cannot be clamped with the draw bar, the buckled locking inclined surface and the draw bar can be reliably unlocked, the working reliability of the operating mechanism of the circuit breaker can be improved, and therefore the operating mechanism of the circuit breaker has the advantages of being simple in structure, stable and reliable in performance, convenient to assemble and high in reliability.
Particularly, the other end of the small lock catch is provided with two fixing feet which are inserted into the traction rod, fixing holes are formed in the two fixing feet respectively, and the traction rod is provided with a positioning shaft which is inserted into the fixing holes of the two fixing feet and forms clamping fit of the positioning shaft and the small lock catch. The positioning shaft in clamping fit with the small lock catch is arranged on the traction rod, so that the small lock catch and the traction rod can be assembled conveniently, and the assembly is more convenient.
Particularly, the two fixing feet of the small lock catch are respectively provided with a clamping convex block which is clamped in a clamping groove in the traction rod, and the small lock catch is in clamping fit with the traction rod. The fixing foot and the traction rod are connected in a clamping matching mode, so that the fixing foot and the traction rod are convenient to assemble, the assembly is more convenient, and the assembly efficiency of the operating mechanism is improved.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention.
FIG. 2 is a cross-sectional view of an embodiment of the present invention.
Fig. 3 is an assembly view of the drawbar and the small shackle according to the embodiment of the present invention.
Fig. 4 is a perspective view of a drawbar according to an embodiment of the present invention.
Fig. 5 is a perspective view of the small lock of the embodiment of the utility model.
Detailed Description
As shown in fig. 1 to 5, an embodiment of the present invention is an operating mechanism of a highly reliable circuit breaker, including a frame 10, a lever 11 rotatably disposed on the frame 10, an upper link 12, a tension spring 13 disposed between the upper link 12 and the lever 11, a lower link 14 cooperating with the upper link 12, a jump buckle 15 cooperating with the lower link 14, a re-buckle 16 cooperating with the jump buckle 15, a draw bar 17 rotatably disposed on the frame 10, and a return tension spring 18 disposed between the draw bar 17 and the frame 10, wherein a locking groove 171 is disposed on the draw bar 17 corresponding to the re-buckle 16, a small lock catch 19 is disposed on the draw bar 171 corresponding to the locking groove 171, a locking inclined plane 191 wrapped in the locking groove 171 is disposed on one end of the small lock catch 19, a bending portion 161 cooperating with the locking inclined plane 191 is disposed on the re-buckle 16, the bending portion 161 is engaged with the locking inclined plane 191, and form a limit fit of the small lock catch 19 and the refastener 16. The other end of the small lock catch 19 is provided with two fixing feet 192 penetrating into the traction rod 17, the two fixing feet 192 are respectively provided with a fixing hole 193, the traction rod 17 is provided with a positioning shaft 20, and the positioning shaft 20 penetrates into the fixing holes 193 of the two fixing feet 192 to form clamping fit of the positioning shaft 20 and the small lock catch 19. The positioning shaft in clamping fit with the small lock catch is arranged on the traction rod, so that the small lock catch and the traction rod can be assembled conveniently, and the assembly is more convenient. Two fixing feet 192 of the small lock catch 19 are respectively provided with a clamping convex block 194, and the clamping convex blocks 194 are clamped in the clamping grooves 172 in the traction rod 17 to form clamping matching of the small lock catch 19 and the traction rod 17. The fixing foot and the traction rod are connected in a clamping matching mode, so that the fixing foot and the traction rod are convenient to assemble, the assembly is more convenient, and the assembly efficiency of the operating mechanism is improved.
Be provided with little hasp on the traction lever, the locking inclined plane parcel of little hasp is in the locking inslot of traction lever, detains again and can not cause the impact to the traction lever, is favorable to prolonging the life of traction lever, and the locking inclined plane of detaining again can not take place the jamming with the traction lever, can guarantee to detain again and can reliably unblock with the traction lever, is favorable to improving the operational reliability of the operating device of this circuit breaker to the operating device of this circuit breaker has simple structure, stable performance is reliable, the assembly is convenient, high reliable advantage.
Claims (3)
1. The utility model provides an operating device of high reliable circuit breaker, includes the framework, rotates the lever that sets up on the framework, goes up the connecting rod, sets up the extension spring between last connecting rod and lever, with last connecting rod linkage complex lower connecting rod, with lower connecting rod linkage complex jump buckle, with jump buckle matched with detain again, rotate the traction lever that sets up on the framework, set up the extension spring that resets between traction lever and framework, its characterized in that: the traction rod on correspond to detain again and be provided with the locking groove, the traction rod on correspond locking groove and be provided with little hasp, one of little hasp on have the locking inclined plane of parcel in the locking inslot, detain again and be provided with the portion of bending with locking inclined plane matched with, the portion of bending block on locking inclined plane, and constitute little hasp and detain spacing cooperation again.
2. The operating mechanism of the high reliability circuit breaker according to claim 1, wherein: the other end of the small lock catch is provided with two fixing feet which are inserted into the traction rod, the two fixing feet are respectively provided with a fixing hole, the traction rod is provided with a positioning shaft, and the positioning shaft is inserted into the fixing holes of the two fixing feet and forms clamping matching of the positioning shaft and the small lock catch.
3. The operating mechanism of the high reliability circuit breaker according to claim 2, wherein: two fixed feet of the small lock catch are respectively provided with a clamping convex block which is clamped in a clamping groove in the traction rod, and the small lock catch is matched with the traction rod in a clamping manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220538102.9U CN217035568U (en) | 2022-03-10 | 2022-03-10 | Operating mechanism of high-reliability circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220538102.9U CN217035568U (en) | 2022-03-10 | 2022-03-10 | Operating mechanism of high-reliability circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035568U true CN217035568U (en) | 2022-07-22 |
Family
ID=82454499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220538102.9U Active CN217035568U (en) | 2022-03-10 | 2022-03-10 | Operating mechanism of high-reliability circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217035568U (en) |
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2022
- 2022-03-10 CN CN202220538102.9U patent/CN217035568U/en active Active
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