CN219497574U - Manual brake closing and opening wire pulling device of circuit breaker - Google Patents
Manual brake closing and opening wire pulling device of circuit breaker Download PDFInfo
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- CN219497574U CN219497574U CN202320957885.9U CN202320957885U CN219497574U CN 219497574 U CN219497574 U CN 219497574U CN 202320957885 U CN202320957885 U CN 202320957885U CN 219497574 U CN219497574 U CN 219497574U
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Abstract
The utility model relates to the technical field of power distribution equipment, in particular to a wire pulling device for manually closing and opening a circuit breaker, which comprises a U-shaped fixing frame fixedly arranged at the top of an explosion-proof shell of the circuit breaker, wherein a closing linkage assembly and a opening linkage assembly are arranged on the U-shaped fixing frame; the switching-on linkage assembly is matched with a switching-on button assembly on the explosion-proof shell through a switching-on stay wire, and the switching-on button is pressed down to drive the switching-on linkage assembly to link and execute switching-on operation through the switching-on stay wire. The device is matched with the top and the inside of the explosion-proof shell, can meet the installation requirement in a special environment, and can ensure the quick operation of closing and opening actions of the circuit breaker after the installation in the special environment; the whole switching-on and switching-off operation is simple, and only the switching-on button and the switching-off button which are positioned in the explosion-proof shell are correspondingly pressed.
Description
Technical Field
The utility model relates to the technical field of power distribution equipment, in particular to a wire pulling device for manually opening and closing a breaker.
Background
A circuit breaker is a switching device capable of closing, carrying and breaking a current under normal circuit conditions and capable of closing, carrying and breaking a current under abnormal circuit conditions for a prescribed time. The circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, and the division of a high-voltage boundary line and a low-voltage boundary line is fuzzy, and is generally called as a high-voltage electrical appliance with the voltage of more than 3 kV.
In practical work, power distribution is an extremely important link in the generation, transportation and use of electricity. A general breaker is equipped with a manual switching-on and switching-off operation device, and a plurality of manual switching-on and switching-off devices of the breaker are positioned on an explosion-proof shell of the breaker.
For example, a manual switching-on/off device of a circuit breaker and a circuit breaker are disclosed in patent document CN202011526046.9, and the main structure of the circuit breaker comprises an explosion-proof housing; the driving poking plate is positioned on the side face of the explosion-proof shell and is rotationally connected with the explosion-proof shell, a switching-on operation rod and a switching-off operation rod are arranged on the driving poking plate, when switching-on acting force is applied to the switching-on operation rod, the driving poking plate rotates relative to the explosion-proof shell in a first direction, and when switching-off acting force is applied to the switching-off operation rod, the driving poking plate rotates relative to the explosion-proof shell in a second direction; the switching-on linkage assembly is in transmission connection with the driving shifting plate, and drives the switching-on linkage assembly to link and execute switching-on action when the driving shifting plate rotates in a first direction; the brake separating linkage assembly is in transmission connection with the driving shifting plate, and drives the brake separating linkage assembly to link when the driving shifting plate rotates to a second direction, and the brake separating action is executed, … … and the brake closing linkage shaft are arranged on the front face of the explosion-proof shell; one end of the switching-on input crank arm part is in transmission connection with the driving shifting plate, the other end of the switching-on input crank arm part is connected with the switching-on linkage shaft, and when the driving shifting plate rotates in a first direction relative to the explosion-proof shell, the switching-on input crank arm part is driven to rotate and the switching-on linkage shaft is driven to rotate; the switching-on output turning arm part is connected with the switching-on linkage shaft, and the switching-on output turning arm part rotates when rotating on the switching-on linkage shaft so as to be contacted with or far away from a switching-on switch on the explosion-proof shell.
In summary, it can be seen that the closing linkage shaft in the above prior art patent is installed on the front surface of the explosion-proof housing, however, for some special installation environments, the circuit breaker needs to be placed in the explosion-proof housing to achieve the purpose of safety and explosion protection, and at this time, the manual closing and opening operation device of the conventional circuit breaker cannot be directly used in the installation environment state.
This also results in that in a special installation environment such as explosion protection, the current manual opening and closing operation device cannot meet the installation requirement and the use requirement of the special environment.
Therefore, the utility model performs a new structural improvement and design aiming at the special installation environment working condition, and therefore provides a wire pulling device for manually opening and closing a breaker, which is used for better solving the problems in the prior art.
Disclosure of Invention
The utility model aims to solve one of the technical problems, and adopts the following technical scheme: a pull wire device for manually closing and opening a circuit breaker comprises a U-shaped fixing frame fixedly arranged at the top of an explosion-proof shell of the circuit breaker, wherein a closing linkage assembly and an opening linkage assembly are arranged on the U-shaped fixing frame;
the switching-on linkage assembly is matched with a switching-on button assembly on the explosion-proof shell through a switching-on stay wire, and when the switching-on button is pressed down, the switching-on stay wire drives the switching-on linkage assembly to link and execute switching-on operation;
the brake-separating linkage assembly is matched with a brake-separating button assembly on the explosion-proof shell through a brake-separating stay wire, and the brake-separating stay wire drives the brake-separating linkage assembly to link and execute brake-separating operation when the brake-separating button is pressed down.
In any of the above schemes, preferably, the closing linkage assembly includes a closing linkage shaft, two ends of the closing linkage shaft respectively pass through front and rear two panels of the U-shaped fixing frame along front and rear directions, a closing first cam is arranged at the front end of the closing linkage shaft, the closing first cam is fixedly mounted on the closing linkage shaft through a closing first cam first opening and a bolt member thereon, a closing reset spring is fixedly mounted on the middle outer side wall of the closing linkage shaft in the U-shaped fixing frame in a sleeved manner, two ends of the closing reset spring respectively abut against a fixing bolt at the inner side of the U-shaped fixing frame and a fixing bolt of the closing linkage shaft, and a closing pull wire is fixedly connected at a closing first cam second opening at the lower part of the long shaft end of the closing first cam in a bolt manner;
the rear end of the switching-on linkage shaft is provided with a switching-on second cam, the switching-on second cam is fixed on the outer side wall of the rear end of the switching-on linkage shaft through a first opening and a bolt piece of the switching-on second cam, one side of the switching-on second cam is provided with a switching-on pushing shaft, the lower end of the switching-on pushing shaft movably stretches into the explosion-proof shell of the circuit breaker and is connected with a switching-on executing element on the circuit breaker in the explosion-proof shell of the circuit breaker, the switching-on pushing shaft pushes the switching-on executing element on the circuit breaker to realize switching-on of the circuit breaker, a third switching-on second cam pushing shaft is arranged in a third opening of the switching-on second cam on one side of the switching-on second cam, and the end part of the third pushing shaft of the switching-on second cam is matched and clamped in a U-shaped groove of the switching-on pushing shaft at a corresponding position.
In any of the above schemes, preferably, the lower end of the closing wire extends into the cavity inside the explosion-proof housing and is connected with the closing linkage assembly, the closing linkage assembly comprises a closing lead fixing piece fixedly installed inside the explosion-proof housing, a closing third cam is hinged to the lower end of the closing lead fixing piece, the middle part of the closing third cam is hinged to the lower end of the closing wire through a closing third cam second opening, the upper end of the closing third cam is connected with the lower end of the closing wire, a closing button is fixedly installed inside the explosion-proof housing on one side of the lower end of the closing third cam, a pressing closing button push plate is installed on the closing button, and one side of the closing button push plate is hinged to the closing third opening of the lower end of the closing third cam through a hinge shaft.
In any of the above schemes, preferably, the brake release linkage assembly comprises a brake release linkage shaft, the brake release linkage shaft is arranged in parallel with the brake release linkage shaft and is arranged in the U-shaped fixing frame, the front end and the rear end of the brake release linkage shaft respectively penetrate through the front panel and the rear panel of the U-shaped fixing frame along the front and rear directions, a brake release first cam is arranged at the front end of the brake release linkage shaft, the brake release first cam is fixedly arranged on the brake release linkage shaft through a brake release first cam first opening on the brake release first cam, a bolt piece is fixedly arranged on the brake release linkage shaft, a brake release reset spring is fixedly sleeved on the outer side wall of the middle part of the brake release linkage shaft in the U-shaped fixing frame, two ends of the brake release reset spring respectively abut against a fixing bolt on the inner side of the U-shaped fixing frame and a fixing bolt of the brake release linkage shaft, and a brake release pulling line is fixedly connected at a brake release first cam second opening at the upper part of the long shaft end of the brake release first cam;
the rear end of the brake separating linkage shaft is provided with a brake separating second cam, the brake separating second cam is fixed on the outer side wall of the rear end of the brake separating linkage shaft through a brake separating second cam first opening and a bolt piece on the brake separating second cam, one side of the brake separating second cam is provided with a brake separating pushing shaft, the lower end of the brake separating pushing shaft movably stretches into the explosion-proof shell of the circuit breaker and is connected with a brake separating executing element self-contained on the circuit breaker in the explosion-proof shell of the circuit breaker, the brake separating pushing shaft pushes the brake separating executing element self-contained on the circuit breaker to realize brake separating of the circuit breaker, a brake separating second cam third pushing shaft is installed in a brake separating second cam third opening on one side of the brake separating second cam, and the end of the brake separating second cam third pushing shaft is matched and clamped in a U-shaped groove of the brake separating pushing shaft at a corresponding position.
In any of the above schemes, preferably, the lower end of the brake release wire extends into the cavity inside the explosion-proof housing and is connected with the brake release linkage assembly, the brake release linkage assembly comprises a brake release lead fixing piece fixedly installed inside the explosion-proof housing, a brake release third cam is hinged to the lower end of the brake release lead fixing piece, the middle part of the brake release third cam is hinged to the lower end of the brake release wire through a second opening of the brake release third cam, the upper end of the brake release third cam is connected with the lower end of the brake release wire, a brake release button is fixedly installed inside the explosion-proof housing on one side of the lower end of the brake release third cam, a brake release button push plate of a push type is installed on the brake release button, and one side of the brake release button push plate is hinged to a third opening of the brake release third cam on the lower end of the brake release third cam through a hinge.
In any of the above schemes, preferably, the front panel of the U-shaped fixing frame is bent forward by 90 degrees to form an H-shaped plate, and arc-shaped notches are formed in the upper and lower parts of the H-shaped plate, and the arc-shaped notches are used for guiding the closing stay wire and the opening stay wire to the corresponding closing first cam and opening first cam.
In any of the above schemes, preferably, a second slot opening of the second closing cam is provided at a lower part of the second closing cam, the second slot opening of the second closing cam is sleeved on a first screw fixedly connected to the U-shaped fixing frame, and the second slot opening of the second closing cam is used for limiting a moving range of the first closing cam during closing.
In any of the above schemes, preferably, a second open slot of the second cam for opening the brake is provided at the lower part of the second cam for opening the brake, the second open slot of the second cam for opening the brake is sleeved on a second screw fixedly connected to the U-shaped fixing frame, and the second open slot of the second cam for opening the brake is used for limiting the movement range of the first cam for opening the brake during opening the brake.
Compared with the prior art, the utility model has the following beneficial effects:
1. the device is matched with the top and the inside of the explosion-proof shell, can meet the installation requirement in a special environment, and can ensure the quick operation of closing and opening actions of the circuit breaker after the installation in the special environment; the whole switching-on and switching-off operation is simple, and only the switching-on button and the switching-off button which are positioned in the explosion-proof shell are correspondingly pressed.
2. The switching-on action designed in the device can realize quick switching-on or switching-on reset through the linkage of the switching-on first cam, the switching-on second cam, the switching-on third cam and the switching-on pull wire; meanwhile, when the brake is opened, the brake can be opened or reset rapidly by utilizing the linkage of the first cam, the second cam, the third cam and the stay wire.
3. The reliability of tension transmission can be ensured by taking the wire rope pull wire as a connecting piece when the closing linkage and the opening linkage are performed, and meanwhile, the reset spring is arranged to realize quick return when the closing release and the opening release are performed.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or features are generally identified by like reference numerals throughout the drawings. In the drawings, the elements or components are not necessarily drawn to scale.
Fig. 1 is a schematic diagram of a front view structure of the present utility model.
Fig. 2 is a schematic view of a partial three-dimensional structure of the left rear view angle of the present utility model.
Fig. 3 is a schematic view of a partial top view structure of the present utility model.
Fig. 4 is a schematic view of a partial rear view structure of the present utility model.
Fig. 5 is a schematic view showing a partial structure of the present utility model inside an explosion-proof housing.
In the figure, 1, an explosion-proof shell; 2. a U-shaped fixing frame; 3. closing a first cam; 4. closing a first opening of a first cam; 5. closing a second opening of the first cam; 6. a first cam for opening the brake; 7. the first opening of the first cam is opened; 8. a second opening of the first cam for opening the brake; 9. an H-shaped plate; 10. closing a second cam; 11. closing a first opening of the second cam; 12. opening a hole in a second long groove of the switching-on second cam; 13. closing a third opening of the second cam; 14. a second cam for opening the brake; 15. the first opening of the second cam is opened; 16. opening a second long groove of the second cam for opening the brake; 17. a third opening of the second cam for opening the brake; 18. a closing linkage shaft; 19. a brake-separating linkage shaft; 20. a closing return spring; 21. a brake release return spring; 22. a closing pushing shaft; 23. a brake-separating pushing shaft; 24. a closing lead fixing piece; 25. a brake release lead fixing piece; 26. a closing button push plate; 27. a brake release button push plate; 28. closing a third cam; 29. closing a first opening of the third cam; 30. closing a second opening of the third cam; 31. closing a third opening of a third cam; 32. a third cam for opening the brake; 33. the third cam of the brake separating is provided with a first opening; 34. the third cam second opening is opened; 35. a third opening of the third cam for opening the brake; 36. closing a stay wire; 37. a brake-separating pull wire; 38. an arc-shaped notch; 39. a first screw; 40. a second screw; 41. closing a third pushing shaft of the second cam; 42. the second cam of the opening brake presses the shaft in a third way.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model. The specific structure of the utility model is shown in fig. 1-5.
Examples
The utility model aims to solve one of the technical problems, and adopts the following technical scheme: the pull wire device for manually closing and opening the circuit breaker comprises a U-shaped fixing frame 2 fixedly arranged at the top of an explosion-proof shell 1 of the circuit breaker, wherein a closing linkage assembly and an opening linkage assembly are arranged on the U-shaped fixing frame 2; the closing linkage assembly is matched with a closing button assembly on the explosion-proof shell through a closing stay wire 36, and the closing button is pressed down to drive the closing linkage assembly to link and execute closing operation through the closing stay wire 36; the brake-separating linkage assembly is matched with a brake-separating button assembly on the explosion-proof shell through a brake-separating stay wire 37, and the brake-separating linkage assembly is driven to be linked through the brake-separating stay wire 37 and perform brake-separating operation when the brake-separating button is pressed down. The switch-on button assembly and the switch-off button assembly in the explosion-proof shell are installed and can be effectively matched with the working condition environment with special explosion-proof requirements for use; meanwhile, the action of the switching-on button component and the switching-off button component can be quickly transferred to the breaker actuating element to realize corresponding switching-on and switching-off actions by utilizing the switching-on linkage component and the switching-off linkage component, so that the convenience, the rapidness and the safety and the reliability in operation can be improved while the matching of installation requirements are ensured.
In any of the above schemes, preferably, the closing linkage assembly includes a closing linkage shaft 18, two ends of the closing linkage shaft 18 respectively pass through front and rear two panels of the U-shaped fixing frame 2 along front and rear directions, a closing first cam 3 is arranged at the front end of the closing linkage shaft 18, the closing first cam 3 is fixedly mounted on the closing linkage shaft 18 through a closing first cam first opening 4 and a bolt member thereon, a closing return spring 20 is fixedly mounted on the middle outer side wall of the closing linkage shaft 18 in the U-shaped fixing frame 2 in a sleeved manner, two ends of the closing return spring 20 respectively abut against a fixing bolt on the inner side of the U-shaped fixing frame 2 and a fixing bolt of the closing linkage shaft 18, and a closing pull wire 36 is fixedly connected at a closing first cam second opening 5 at the lower part of the long axis end of the closing first cam 3 in a bolt manner;
the rear end of the closing linkage shaft 18 is provided with a closing second cam 10, the closing second cam 10 is fixed on the outer side wall of the rear end of the closing linkage shaft 18 through a closing second cam first opening 11 and a bolt piece on the closing second cam 10, one side of the closing second cam 10 is provided with a closing pushing shaft 22, the lower end of the closing pushing shaft 22 movably stretches into the explosion-proof shell 1 of the circuit breaker and is connected with a closing executing element on the circuit breaker in the explosion-proof shell 1 of the circuit breaker, the closing pushing shaft 22 pushes the closing executing element on the circuit breaker to realize closing of the circuit breaker, a closing second cam third pushing shaft 41 is installed in a closing second cam third opening 13 on one side of the closing second cam 10, and the end of the closing second cam third pushing shaft 41 is matched and clamped in a U-shaped groove of the closing pushing shaft 22 at a corresponding position. The switching-on linkage assembly mainly adopts a switching-on stay wire 36 to realize linkage with a switching-on button assembly in the explosion-proof shell at the lower part, and when the switching-on button assembly is operated, the switching-on stay wire 36 can be utilized to drive the corresponding switching-on first cam 3 and switching-on second cam 10 to act, so that the operation of the corresponding switching-on pushing shaft 22 is controlled to drive the corresponding action of the corresponding switching-on actuating element on the circuit breaker, and switching-on operation is realized.
In any of the above schemes, preferably, the lower end of the closing wire 36 extends into the cavity inside the explosion-proof housing and is connected with the closing linkage assembly, the closing linkage assembly includes a closing lead fixing piece fixedly installed inside the explosion-proof housing, the lower end of the closing lead fixing piece is hinged with a closing third cam 28, the middle part of the closing third cam 28 is hinged with the lower end of the closing wire 36 through a closing third cam second opening 30, the upper end of the closing third cam is connected with the lower end of the closing wire 36, a closing button is fixedly installed inside the explosion-proof housing at one side of the lower end of the closing third cam 28, a pressing closing button push plate 26 is installed on the closing button, and one side of the closing button push plate 26 is hinged with a closing third cam third opening 31 at the lower end of the closing third cam 28 through a hinge.
In any of the above schemes, preferably, the brake release linkage assembly includes a brake release linkage shaft 19, the brake release linkage shaft 19 is disposed in parallel with the brake release linkage shaft 18 and is disposed in the U-shaped fixing frame 2, front and rear ends of the brake release linkage shaft 19 respectively pass through front and rear two panels of the U-shaped fixing frame 2 along front and rear directions, a brake release first cam 6 is disposed at a front end of the brake release linkage shaft 19, the brake release first cam 6 is fixedly mounted on the brake release linkage shaft 19 through a brake release first opening 7 thereon and a bolt member, a brake release return spring 21 is fixedly mounted on an outer side wall of a middle portion of the brake release linkage shaft 19 in the U-shaped fixing frame 2 in a sleeved manner, two ends of the brake release return spring 21 respectively abut against a fixing bolt on an inner side of the U-shaped fixing frame 2 and a fixing bolt of the brake release linkage shaft 19, and a brake release wire 37 is fixedly connected at a brake release first cam second opening 8 on an upper portion of a long shaft end of the brake release first cam 6; the rear end of the opening linkage shaft 19 is provided with an opening second cam 14, the opening second cam 14 is fixed on the outer side wall of the rear end of the opening linkage shaft 19 through an opening second cam first opening 15 and a bolt on the opening second cam 14, one side of the opening second cam 14 is provided with an opening pushing shaft 23, the lower end of the opening pushing shaft 23 movably extends into the explosion-proof shell 1 of the circuit breaker and is connected with an opening executing element on the circuit breaker in the explosion-proof shell 1 of the circuit breaker, the opening pushing shaft 23 pushes the opening executing element on the circuit breaker to realize opening of the circuit breaker, and an opening second cam third pushing shaft 42 is installed in an opening second cam third opening 17 on one side of the opening second cam 14, wherein the end of the opening second cam third pushing shaft 42 is matched and clamped in a U-shaped groove of the opening pushing shaft 23 at a corresponding position.
The opening linkage assembly mainly adopts an opening stay wire 37 to realize linkage with an opening button assembly in the lower explosion-proof shell, and when the opening button assembly is operated, the opening stay wire 37 can be utilized to drive the corresponding opening first cam 6 and opening second cam 14 to act, so as to control the operation of the corresponding opening pushing shaft 23 to drive the corresponding opening actuating element on the circuit breaker to act correspondingly, thereby realizing closing operation.
In any of the above schemes, preferably, the lower end of the brake release wire 37 extends into the cavity inside the explosion-proof housing and is connected with the brake release linkage assembly, the brake release linkage assembly includes a brake release wire fixing member 25 fixedly installed inside the explosion-proof housing, a brake release third cam 32 is hinged to the lower end of the brake release wire fixing member 25, the middle part of the brake release third cam 32 is hinged to the lower end of the brake release wire 37 through a brake release third cam second opening 34, the upper end of the brake release third cam is connected with the lower end of the brake release wire 37, a brake release button is fixedly installed inside the explosion-proof housing on one side of the lower end of the brake release third cam 32, a brake release button push plate 27 is installed on the brake release button, and one side of the brake release button push plate 27 is hinged to the brake release third cam third opening 35 on the lower end of the brake release third cam 32 through a hinge.
Examples
The utility model aims to solve one of the technical problems, and adopts the following technical scheme: the pull wire device for manually closing and opening the circuit breaker comprises a U-shaped fixing frame 2 fixedly arranged at the top of an explosion-proof shell 1 of the circuit breaker, wherein a closing linkage assembly and an opening linkage assembly are arranged on the U-shaped fixing frame 2;
the closing linkage assembly is matched with a closing button assembly on the explosion-proof shell through a closing stay wire 36, and the closing button is pressed down to drive the closing linkage assembly to link and execute closing operation through the closing stay wire 36;
the brake-separating linkage assembly is matched with a brake-separating button assembly on the explosion-proof shell through a brake-separating stay wire 37, and the brake-separating linkage assembly is driven to be linked through the brake-separating stay wire 37 and perform brake-separating operation when the brake-separating button is pressed down.
The switch-on button assembly and the switch-off button assembly in the explosion-proof shell are installed and can be effectively matched with the working condition environment with special explosion-proof requirements for use; meanwhile, the action of the switching-on button component and the switching-off button component can be quickly transferred to the breaker actuating element to realize corresponding switching-on and switching-off actions by utilizing the switching-on linkage component and the switching-off linkage component, so that the convenience, the rapidness and the safety and the reliability in operation can be improved while the matching of installation requirements are ensured.
In any of the above schemes, preferably, the closing linkage assembly includes a closing linkage shaft 18, two ends of the closing linkage shaft 18 respectively pass through front and rear two panels of the U-shaped fixing frame 2 along front and rear directions, a closing first cam 3 is arranged at the front end of the closing linkage shaft 18, the closing first cam 3 is fixedly mounted on the closing linkage shaft 18 through a closing first cam first opening 4 and a bolt member thereon, a closing return spring 20 is fixedly mounted on the middle outer side wall of the closing linkage shaft 18 in the U-shaped fixing frame 2 in a sleeved manner, two ends of the closing return spring 20 respectively abut against a fixing bolt on the inner side of the U-shaped fixing frame 2 and a fixing bolt of the closing linkage shaft 18, and a closing pull wire 36 is fixedly connected at a closing first cam second opening 5 at the lower part of the long axis end of the closing first cam 3 in a bolt manner;
the rear end of the closing linkage shaft 18 is provided with a closing second cam 10, the closing second cam 10 is fixed on the outer side wall of the rear end of the closing linkage shaft 18 through a closing second cam first opening 11 and a bolt piece on the closing second cam 10, one side of the closing second cam 10 is provided with a closing pushing shaft 22, the lower end of the closing pushing shaft 22 movably stretches into the explosion-proof shell 1 of the circuit breaker and is connected with a closing executing element on the circuit breaker in the explosion-proof shell 1 of the circuit breaker, the closing pushing shaft 22 pushes the closing executing element on the circuit breaker to realize closing of the circuit breaker, a closing second cam third pushing shaft 41 is installed in a closing second cam third opening 13 on one side of the closing second cam 10, and the end of the closing second cam third pushing shaft 41 is matched and clamped in a U-shaped groove of the closing pushing shaft 22 at a corresponding position.
The switching-on linkage assembly mainly adopts a switching-on stay wire 36 to realize linkage with a switching-on button assembly in the explosion-proof shell at the lower part, and when the switching-on button assembly is operated, the switching-on stay wire 36 can be utilized to drive the corresponding switching-on first cam 3 and switching-on second cam 10 to act, so that the operation of the corresponding switching-on pushing shaft 22 is controlled to drive the corresponding action of the corresponding switching-on actuating element on the circuit breaker, and switching-on operation is realized.
In any of the above schemes, preferably, the lower end of the closing wire 36 extends into the cavity inside the explosion-proof housing and is connected with the closing linkage assembly, the closing linkage assembly includes a closing lead fixing piece fixedly installed inside the explosion-proof housing, the lower end of the closing lead fixing piece is hinged with a closing third cam 28, the middle part of the closing third cam 28 is hinged with the lower end of the closing wire 36 through a closing third cam second opening 30, the upper end of the closing third cam is connected with the lower end of the closing wire 36, a closing button is fixedly installed inside the explosion-proof housing at one side of the lower end of the closing third cam 28, a pressing closing button push plate 26 is installed on the closing button, and one side of the closing button push plate 26 is hinged with a closing third cam third opening 31 at the lower end of the closing third cam 28 through a hinge.
In any of the above schemes, preferably, the brake release linkage assembly includes a brake release linkage shaft 19, the brake release linkage shaft 19 is disposed in parallel with the brake release linkage shaft 18 and is disposed in the U-shaped fixing frame 2, front and rear ends of the brake release linkage shaft 19 respectively pass through front and rear two panels of the U-shaped fixing frame 2 along front and rear directions, a brake release first cam 6 is disposed at a front end of the brake release linkage shaft 19, the brake release first cam 6 is fixedly mounted on the brake release linkage shaft 19 through a brake release first opening 7 thereon and a bolt member, a brake release return spring 21 is fixedly mounted on an outer side wall of a middle portion of the brake release linkage shaft 19 in the U-shaped fixing frame 2 in a sleeved manner, two ends of the brake release return spring 21 respectively abut against a fixing bolt on an inner side of the U-shaped fixing frame 2 and a fixing bolt of the brake release linkage shaft 19, and a brake release wire 37 is fixedly connected at a brake release first cam second opening 8 on an upper portion of a long shaft end of the brake release first cam 6;
the rear end of the opening linkage shaft 19 is provided with an opening second cam 14, the opening second cam 14 is fixed on the outer side wall of the rear end of the opening linkage shaft 19 through an opening second cam first opening 15 and a bolt on the opening second cam 14, one side of the opening second cam 14 is provided with an opening pushing shaft 23, the lower end of the opening pushing shaft 23 movably extends into the explosion-proof shell 1 of the circuit breaker and is connected with an opening executing element on the circuit breaker in the explosion-proof shell 1 of the circuit breaker, the opening pushing shaft 23 pushes the opening executing element on the circuit breaker to realize opening of the circuit breaker, and an opening second cam third pushing shaft 42 is installed in an opening second cam third opening 17 on one side of the opening second cam 14, wherein the end of the opening second cam third pushing shaft 42 is matched and clamped in a U-shaped groove of the opening pushing shaft 23 at a corresponding position.
The opening linkage assembly mainly adopts an opening stay wire 37 to realize linkage with an opening button assembly in the lower explosion-proof shell, and when the opening button assembly is operated, the opening stay wire 37 can be utilized to drive the corresponding opening first cam 6 and opening second cam 14 to act, so as to control the operation of the corresponding opening pushing shaft 23 to drive the corresponding opening actuating element on the circuit breaker to act correspondingly, thereby realizing closing operation.
In any of the above schemes, preferably, the lower end of the brake release wire 37 extends into the cavity inside the explosion-proof housing and is connected with the brake release linkage assembly, the brake release linkage assembly includes a brake release wire fixing member 25 fixedly installed inside the explosion-proof housing, a brake release third cam 32 is hinged to the lower end of the brake release wire fixing member 25, the middle part of the brake release third cam 32 is hinged to the lower end of the brake release wire 37 through a brake release third cam second opening 34, the upper end of the brake release third cam is connected with the lower end of the brake release wire 37, a brake release button is fixedly installed inside the explosion-proof housing on one side of the lower end of the brake release third cam 32, a brake release button push plate 27 is installed on the brake release button, and one side of the brake release button push plate 27 is hinged to the brake release third cam third opening 35 on the lower end of the brake release third cam 32 through a hinge.
In any of the above schemes, it is preferable that the front panel of the U-shaped fixing frame 2 is bent forward by 90 degrees to form an H-shaped plate 9, and arc-shaped notches 38 are formed at the upper and lower parts of the H-shaped plate 9, where the arc-shaped notches 38 are used for guiding the closing stay 36 and the opening stay 37 to the corresponding closing first cam 3 and opening first cam 6.
In any of the above solutions, it is preferable that a second closing cam second slot opening 12 is provided at the lower part of the second closing cam 10, the second closing cam second slot opening 12 is sleeved on a first screw 39 fixedly connected to the U-shaped fixing frame 2, and the second closing cam second slot opening 12 is used for limiting the moving range of the first closing cam 3 during closing.
In any of the above solutions, it is preferable that a second opening 16 of the second cam for opening the opening is provided at the lower portion of the second cam for opening the opening 14, the second opening 16 of the second cam for opening the opening is sleeved on a second screw 40 fixedly connected to the U-shaped fixing frame 2, and the second opening 16 of the second cam for opening the opening is used for limiting the movement range of the first cam for opening the opening 6 during opening the opening.
The closing operation process is as follows:
when a closing button of the explosion-proof housing is pressed, the closing button push plate 26 moves along with the button in the direction of the explosion-proof housing, drives the closing third cam 28 to rotate anticlockwise, and the closing third cam first opening 29 moves downwards to stretch the closing stay wire 36.
The closing pulling wire 36 pulls the closing first cam 3 to rotate anticlockwise, drives the closing linkage shaft 18 to rotate, and continuously drives the closing reset spring 20 to deform to generate elastic force.
The closing linkage shaft 18 drives the closing second cam 10 to rotate anticlockwise, and the closing second cam 10 pushes the closing pushing rod to move downwards, so that closing operation is completed.
The closing button is released, the closing button push plate 26 is restored to the initial position along with the button, the closing third cam 28 is driven to rotate clockwise, the first opening 29 of the closing third cam moves upwards, and the closing stay wire 36 is released.
The closing reset spring 20 releases elastic force to the closing linkage shaft 18, the closing linkage shaft 18 drives the closing first cam 3 and the closing second cam 10 to restore to the original positions, and the closing pushing rod restores to the original positions.
The brake separating operation process is as follows:
when the opening button of the explosion-proof shell is pressed, the opening button push plate 27 moves along with the button in the direction of the shell, drives the opening third cam 32 to rotate anticlockwise, and the opening third cam first opening 33 moves downwards to stretch the opening stay 37.
The opening stay wire 37 pulls the opening first cam 6 to rotate anticlockwise, and the opening linkage shaft 19 rotates to drive the opening return spring 21 to deform to generate elasticity. The brake-separating linkage shaft 19 drives the brake-separating second cam 14 to rotate anticlockwise. The second cam 14 pushes the brake-separating pushing rod to move downwards, so that brake-separating operation is completed.
The release button is released, the release button push plate 27 returns to the initial position along with the button, the release third cam 32 rotates clockwise, the first opening 33 of the release third cam moves upwards, and the release pull wire 37 is released. The brake release return spring 21 releases elasticity to the brake release linkage shaft 19, and the brake release linkage shaft 19 drives the brake release first cam 6 and the brake release second cam 14 to restore to the original positions. The brake-separating pushing rod is restored to the original position.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions; any alternative modifications or variations to the embodiments of the present utility model will fall within the scope of the present utility model for those skilled in the art.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Claims (8)
1. The utility model provides a manual brake-closing's of circuit breaker draw wire device which characterized in that: the circuit breaker explosion-proof shell comprises a U-shaped fixing frame fixedly arranged at the top of the circuit breaker explosion-proof shell, wherein a closing linkage assembly and a separating linkage assembly are arranged on the U-shaped fixing frame;
the switching-on linkage assembly is matched with a switching-on button assembly on the explosion-proof shell through a switching-on stay wire, and when the switching-on button is pressed down, the switching-on stay wire drives the switching-on linkage assembly to link and execute switching-on operation;
the brake-separating linkage assembly is matched with a brake-separating button assembly on the explosion-proof shell through a brake-separating stay wire, and the brake-separating stay wire drives the brake-separating linkage assembly to link and execute brake-separating operation when the brake-separating button is pressed down.
2. The wire pulling device for manually opening and closing a circuit breaker according to claim 1, wherein: the switching-on linkage assembly comprises a switching-on linkage shaft, two ends of the switching-on linkage shaft respectively penetrate through a front panel and a rear panel of the U-shaped fixing frame along the front-rear direction, a switching-on first cam is arranged at the front end of the switching-on linkage shaft, the switching-on first cam is fixedly arranged on the switching-on linkage shaft through a first opening of the switching-on first cam and a bolt piece, a switching-on reset spring is fixedly sleeved on the outer side wall of the middle part of the switching-on linkage shaft in the U-shaped fixing frame, two ends of the switching-on reset spring respectively abut against a fixing bolt on the inner side of the U-shaped fixing frame and a fixing bolt of the switching-on linkage shaft, and a switching-on pull wire is fixedly connected at a second opening of the switching-on first cam at the lower part of the long shaft end of the switching-on first cam in a bolting mode;
the rear end of the switching-on linkage shaft is provided with a switching-on second cam, the switching-on second cam is fixed on the outer side wall of the rear end of the switching-on linkage shaft through a first opening and a bolt piece of the switching-on second cam, one side of the switching-on second cam is provided with a switching-on pushing shaft, the lower end of the switching-on pushing shaft movably stretches into the explosion-proof shell of the circuit breaker and is connected with a switching-on executing element on the circuit breaker in the explosion-proof shell of the circuit breaker, the switching-on pushing shaft pushes the switching-on executing element on the circuit breaker to realize switching-on of the circuit breaker, a third switching-on second cam pushing shaft is arranged in a third opening of the switching-on second cam on one side of the switching-on second cam, and the end part of the third pushing shaft of the switching-on second cam is matched and clamped in a U-shaped groove of the switching-on pushing shaft at a corresponding position.
3. The wire pulling device for manually opening and closing a circuit breaker according to claim 2, wherein: the lower extreme that the switch-on was acted as go-between stretches to in the inside cavity of explosion-proof casing and with the linkage subassembly is connected of switch-on, the linkage subassembly of switch-on is including fixed mounting the inside switch-on lead wire mounting of explosion-proof casing the lower extreme of switch-on lead wire mounting articulates there is the switch-on third cam, the middle part of switch-on third cam articulates the setting through switch-on third cam second trompil and the upper end with the lower extreme of switch-on was acted as go-between is connected the lower extreme of switch-on third cam one side the inside fixed mounting of explosion-proof casing has a switch-on button install the switch-on button push pedal of push type, one side of switch-on button push pedal articulated mutually through the hinge with the switch-on third cam third trompil of switch-on third cam lower extreme.
4. A wire pulling device for manual opening and closing of a circuit breaker according to claim 3, wherein: the brake separating linkage assembly comprises a brake separating linkage shaft which is arranged in parallel with the brake closing linkage shaft at intervals and is arranged in the U-shaped fixing frame, the front end and the rear end of the brake separating linkage shaft respectively penetrate through the front panel and the rear panel of the U-shaped fixing frame along the front direction and the rear direction, a brake separating first cam is arranged at the front end of the brake separating linkage shaft, the brake separating first cam is fixedly arranged on the brake separating linkage shaft through a brake separating first cam first opening and a bolt piece on the brake separating first cam, a brake separating reset spring is fixedly sleeved on the outer side wall of the middle part of the brake separating linkage shaft in the U-shaped fixing frame, two ends of the brake separating reset spring respectively abut against a fixing bolt on the inner side of the U-shaped fixing frame and a brake separating pull wire is fixedly connected at a brake separating first cam second opening at the upper part of the long shaft end of the brake separating first cam in a bolting way;
the rear end of the brake separating linkage shaft is provided with a brake separating second cam, the brake separating second cam is fixed on the outer side wall of the rear end of the brake separating linkage shaft through a brake separating second cam first opening and a bolt piece on the brake separating second cam, one side of the brake separating second cam is provided with a brake separating pushing shaft, the lower end of the brake separating pushing shaft movably stretches into the explosion-proof shell of the circuit breaker and is connected with a brake separating executing element self-contained on the circuit breaker in the explosion-proof shell of the circuit breaker, the brake separating pushing shaft pushes the brake separating executing element self-contained on the circuit breaker to realize brake separating of the circuit breaker, a brake separating second cam third pushing shaft is installed in a brake separating second cam third opening on one side of the brake separating second cam, and the end of the brake separating second cam third pushing shaft is matched and clamped in a U-shaped groove of the brake separating pushing shaft at a corresponding position.
5. The wire pulling device for manually opening and closing a circuit breaker according to claim 4, wherein: the lower extreme that the brake release was acted as go-between stretches to in the inside cavity of explosion-proof casing and with the brake release linkage subassembly is connected, the brake release linkage subassembly is including fixed mounting the inside brake release lead wire mounting of explosion-proof casing the lower extreme of brake release lead wire mounting articulates there is the third cam of brake release, the middle part of third cam of brake release is articulated to be set up and the upper end with the lower extreme of brake release was acted as go-between through the third cam second trompil of brake release is connected the lower extreme one side of third cam of brake release the inside fixed mounting of explosion-proof casing has a brake release button push pedal of push type is installed on the brake release button, one side of brake release button push pedal articulated mutually through the hinge with the third trompil of the third cam lower extreme of brake release.
6. The wire pulling device for manually opening and closing a circuit breaker according to claim 5, wherein: the front panel of the U-shaped fixing frame is bent forwards by 90 degrees to form an H-shaped plate, arc-shaped notches are formed in the upper portion and the lower portion of the H-shaped plate, and the arc-shaped notches are used for guiding a closing stay wire and a separating brake stay wire to corresponding closing first cams and separating brake first cams.
7. The wire pulling device for manually opening and closing a circuit breaker according to claim 6, wherein: the lower part of the closing second cam is provided with a closing second cam second long groove opening, the closing second cam second long groove opening is sleeved on a first screw fixedly connected to the U-shaped fixing frame, and the closing second cam second long groove opening is used for limiting the moving range of the closing first cam during closing.
8. The wire pulling device for manually opening and closing a circuit breaker according to claim 7, wherein: the lower part of the opening second cam is provided with an opening second cam second long groove opening, the opening second cam second long groove opening is sleeved on a second screw fixedly connected to the U-shaped fixing frame, and the opening second cam second long groove opening is used for limiting the moving range of the opening first cam during opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320957885.9U CN219497574U (en) | 2023-04-25 | 2023-04-25 | Manual brake closing and opening wire pulling device of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320957885.9U CN219497574U (en) | 2023-04-25 | 2023-04-25 | Manual brake closing and opening wire pulling device of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219497574U true CN219497574U (en) | 2023-08-08 |
Family
ID=87509718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320957885.9U Active CN219497574U (en) | 2023-04-25 | 2023-04-25 | Manual brake closing and opening wire pulling device of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219497574U (en) |
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2023
- 2023-04-25 CN CN202320957885.9U patent/CN219497574U/en active Active
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