CN215118813U - Energy storage type operating mechanism for circuit breaker - Google Patents

Abstract

The utility model relates to an energy storage type operating mechanism for a circuit breaker, which comprises a crank arm assembly, a tripping driving assembly, a bracket and a manual energy storage driving assembly, wherein the manual energy storage driving assembly comprises a driving shaft connected on the crank arm assembly, a first ratchet wheel arranged on the driving shaft, a rotating handle arranged on the driving shaft, a first ratchet wheel arranged on the rotating handle and a first reset spring, and the first ratchet wheel is matched with the first ratchet wheel; the driving shaft is provided with a second ratchet wheel, the bracket is provided with a second ratchet, and the second ratchet wheel is matched with the second ratchet. The energy storage mechanism has the advantages that manual energy storage operation is achieved through the cooperation of the first ratchet wheel and the first ratchet wheel, the fact that the rotating shaft can only rotate in the same direction and cannot rotate reversely is guaranteed through the cooperation of the second ratchet wheel and the second ratchet wheel, the energy storage position is kept, the energy storage mechanism can be suitable for application occasions needing rapid switching-on, meanwhile in the maintenance process, maintenance personnel can manually store energy and release energy on site, the degree of freedom of field maintenance is improved, and operation is convenient.

Description

Energy storage type operating mechanism for circuit breaker

Technical Field

The utility model belongs to the technical field of the circuit breaker control technique and specifically relates to an energy storage formula operating device for circuit breaker is related to.

Background

Most of electric operating mechanisms used by circuit breakers in the market can be remotely controlled, the opening time or closing time of the electric operating mechanisms is about 1 second, and the situation that the quick closing operation is received by a closing instruction cannot be met, so that the operating mechanism capable of reducing the closing operation time is needed.

At present, energy storage type electric operating mechanisms capable of shortening the time to within 100 milliseconds exist in the market, can store mechanical energy, and release the mechanical energy when the switch-on is needed to realize the purpose of rapid switch-on; chinese patent (CN107910235B) discloses an energy storage operating mechanism of a circuit breaker, which mainly drives a crank arm assembly in the circuit breaker to move in a mode of an electric motor gear set, and releases mechanical energy in a mode of an electromagnet to realize rapid switching-on; but this kind of structure can only control for the motor through long-range signal transmission at present, and when maintaining the circuit, need break off the circuit breaker and carry out the energy storage simultaneously, all need long-range control, and the maintenance personal in the scene need wait for the energy storage to finish, uses very inconveniently.

What is needed is an energy storage mechanism that can be easily operated by field maintenance personnel.

Disclosure of Invention

The utility model aims to solve the technical problem that an energy storage formula operating device for circuit breaker that can on-spot manual energy storage is provided.

The utility model provides a technical scheme that its technical problem adopted is: an energy storage operating mechanism for a circuit breaker comprising

The connecting lever assembly is used for driving a breaker handle to perform switching-off and switching-on actions, moving the connecting lever assembly to the switching-off direction to store energy and moving the connecting lever assembly to the switching-on direction to release energy;

the tripping assembly is used for unlocking the crank arm assembly so that the crank arm assembly releases energy;

the bracket is used for fixing the crank arm assembly and the tripping assembly;

also comprises

The manual tripping driving assembly is used for manually driving the tripping assembly to move;

the manual energy storage driving assembly is used for manually driving the crank arm assembly to move towards the opening direction;

the manual energy storage driving assembly comprises a driving shaft connected to the crank arm assembly, a first ratchet wheel arranged on the driving shaft, a rotating handle arranged on the driving shaft and capable of rotating around the driving shaft, a first ratchet wheel arranged on the rotating handle and a first return spring used for returning the first ratchet wheel, wherein the first ratchet wheel is matched with the first ratchet wheel; the driving shaft is provided with a second ratchet wheel, the bracket is provided with a second ratchet wheel, the second ratchet wheel is matched with the second ratchet wheel, and the second ratchet wheel is provided with a second return spring for returning.

Further specifically, a third return spring is arranged between the rotating handle and the bracket.

Further specifically, the crank arm assembly comprises a rotating shaft arranged on the support, a first driving plate and a second driving plate which are arranged around the rotating shaft, a pushing shaft arranged between the first driving plate and the second driving plate, a plurality of supporting shafts arranged between the first driving plate and the second driving plate, a locking shaft arranged between the first driving plate and the second driving plate, a stirring group used for stirring a handle of the circuit breaker, a crank arm resetting group used for resetting, a rotating shaft fixed on the support and a pushing plate arranged on the rotating shaft, wherein the pushing plate drives the shaft to move in a brake separating direction, the rotating shaft is driven by the manual energy storage driving assembly, and the locking shaft is matched with the tripping assembly.

Further specifically, the crank arm resetting group includes a first pressure spring limiting part arranged on one of the support shafts, a second pressure spring limiting part arranged on the support, and a crank arm resetting pressure spring arranged between the first pressure spring limiting part and the second pressure spring limiting part.

More specifically, the toggle group comprises a toggle rotating shaft arranged between the first driving plate and the second driving plate, a U-shaped toggle plate rotating around the toggle rotating shaft and a guide shaft arranged on the outer side of the U-shaped toggle plate, wherein a guide groove is formed in the support, and the guide shaft slides in the guide groove.

Further specifically, the tripping assembly comprises a rotatable unlocking shaft arranged on the support, a rotatable locking shaft arranged on the support, and a locking plate fixed on the locking shaft; the first end of the lock catch plate is matched with the crank arm assembly, and the second end of the lock catch plate is propped against the unlocking shaft; the unlocking shaft is provided with an unlocking groove, and the unlocking shaft rotates to enable the second end of the lock catch plate to be aligned with the unlocking groove to realize unlocking.

Further specifically, the manual tripping driving assembly comprises a tripping cam connected to the tripping assembly and a tripping button for driving the tripping cam to move, and a tripping return spring is arranged between the tripping button and the support.

Further specifically, a control cam is arranged on the driving shaft, a first ring surface is arranged on the control cam, a first groove is arranged on the first ring surface, a first microswitch is arranged on the support, and the first microswitch is matched with the first groove.

Further specifically, a control cam is arranged on the driving shaft, a second annular surface is arranged on the control cam, a second groove is formed in the second annular surface, an energy storage indicating rotary handle is arranged on the support, and the energy storage indicating rotary handle is matched with the second groove.

More specifically, the driving shaft is provided with a control cam, the control cam is provided with a third ring surface, the third ring surface is provided with a third groove, the bracket is provided with a rotatable first auxiliary plate, the bracket is provided with a padlock plate capable of sliding up and down, the upper part of the padlock plate is provided with a limiting part, one end of the first auxiliary plate is provided with a hanging shaft, and the hanging shaft is matched with the limiting part.

More specifically, a second auxiliary plate rotating along with the unlocking shaft is arranged on the unlocking shaft of the tripping assembly, and a padlock limiting plate is arranged at the bottom of the padlock plate; when the padlock plate is pulled upwards, the padlock limiting plate is positioned below the padlock plate, and when the padlock plate does not act, the padlock limiting plate is positioned above the padlock plate.

Further specifically, the support on be provided with the automatic energy storage drive assembly that is used for automatic drive connecting lever subassembly to the motion of separating brake direction, automatic energy storage drive assembly including set up motor and the gear train on the support, the gear train drive connecting lever subassembly motion.

Further specifically, the support is provided with an automatic tripping driving assembly for driving the tripping assembly to move, the automatic tripping driving assembly comprises a rotatable tripping driving shaft arranged on the support, a tripping one-way bearing arranged on the tripping driving shaft, a tripping driving gear arranged on the tripping one-way bearing, and a tripping driving plate arranged on the tripping driving shaft, and the tripping driving plate drives the tripping assembly to move.

The utility model has the advantages that: through adopting above-mentioned energy storage mechanism, adopt the cooperation of first ratchet and first ratchet to realize manual energy storage operation, guarantee simultaneously through the cooperation of second ratchet and second ratchet that the axis of rotation can only rotate to same direction and can not the antiport, keep the energy storage position, this energy storage mechanism can be applicable to the application occasion that needs the rapid switch-on, simultaneously in the maintenance process, the maintainer can on-the-spot manual energy storage and release, improves the degree of freedom of on-the-spot maintenance, convenient operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the manual energy storage driving assembly of the present invention;

FIG. 3 is a schematic structural view of the present invention without a manual energy storage driving assembly;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

FIG. 5 is a schematic structural view of the present invention without a manual energy storage driving assembly;

fig. 6 is a schematic structural diagram of the control cam of the present invention;

FIG. 7 is a schematic structural view of the present invention without the manual energy storage driving assembly and the control cam;

FIG. 8 is a schematic structural view of the present invention without the manual energy storage driving assembly and the control cam;

fig. 9 is a first schematic structural view of the engagement between the locking plate and the unlocking shaft of the present invention;

fig. 10 is a second schematic structural view of the engagement between the locking plate and the unlocking shaft of the present invention;

fig. 11 is a first schematic structural view of the crank arm assembly and the trip assembly of the present invention;

fig. 12 is a second schematic structural view of the crank arm assembly and the trip assembly of the present invention;

fig. 13 is a schematic structural view of the unlocking plate of the present invention;

fig. 14 is a first schematic structural diagram of the automatic energy storage driving assembly and the automatic trip control assembly according to the present invention;

fig. 15 is a schematic structural diagram of the automatic energy storage driving assembly and the automatic tripping control assembly according to the present invention;

fig. 16 is a first schematic structural view of the automatic trip control assembly of the present invention cooperating with the trip assembly;

fig. 17 is a schematic structural view of the automatic trip control assembly of the present invention cooperating with the trip assembly;

fig. 18 is a schematic structural view of a first plate in the automatic trip control assembly of the present invention;

fig. 19 is a schematic structural view of a second plate in the automatic trip control assembly of the present invention;

fig. 20 is a third schematic structural view of the automatic trip control assembly of the present invention cooperating with the trip assembly;

fig. 21 is a schematic view of a second embodiment of a first plate of the automatic trip control assembly of the present invention.

In the figure: 1. a crank arm assembly; 11. a rotating shaft; 12. a first drive plate; 13. a second drive plate; 14. pushing the shaft; 151. a first support shaft; 152. a second support shaft; 153. a third support shaft; 154. a fourth support shaft; 16. a lock shaft; 17. the group is stirred; 171. the rotating shaft is shifted; 172. a U-shaped poking plate; 173. a guide shaft; 18. a crank arm resetting group; 181. a first pressure spring limiting piece; 182. a second pressure spring limiting piece; 183. a crank arm reset pressure spring; 19. a rotating shaft; 110. a push plate; 111. an arc-shaped slot;

2. a trip assembly; 21. unlocking the shaft; 211. unlocking the groove; 22. a latch shaft; 23. a locking plate;

3. a support; 31. a first side plate; 311. a guide groove; 32. a second side plate; 33. a side plate support shaft;

4. a manual trip drive assembly; 41. a trip cam; 42. a trip button;

5. a manual energy storage drive assembly; 51. a drive shaft; 52. a first ratchet wheel; 53. rotating the handle; 54. a first ratchet; 55. rotating the rod; 56. a drive handle; 57. a second ratchet wheel; 58. a second ratchet;

6. an automatic energy storage drive assembly; 61. a motor; 62. a driving gear; 63. a driven gear; 64. a drive gear;

7. an automatic trip drive assembly; 71. tripping the driving shaft; 72. tripping the one-way bearing; 73. a trip driving gear; 74. a first plate; 741. a drive aperture; 742. a yielding groove; 75. a second plate; 751. a drive rod; 752. a stabilizer bar;

8. a control cam; 810. a first annulus; 811. a first groove; 812. a first microswitch; 820. a second annulus; 821. a second groove; 822. an energy storage indicating rotary handle; 830. a third annulus; 831. a third groove; 832. a first auxiliary plate; 833. hanging a lock plate; 834. a second auxiliary plate; 835. hanging a shaft; 836. a limiting part; 837. a padlock limiting plate; 841. an inner shell; 842. a locking key; 843. a second microswitch;

101. a switching-on and switching-off indicator; 102. and a switching-on/off rotating member.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

An energy-storing operating mechanism for a circuit breaker as shown in fig. 1 comprises

The connecting lever assembly 1 is used for driving a breaker handle to perform switching-off and switching-on actions, moving the connecting lever assembly 1 to the switching-off direction to store energy and moving the connecting lever assembly 1 to the switching-on direction to release energy;

the tripping assembly 2 is used for unlocking the crank arm assembly 1 so that the crank arm assembly 1 releases energy;

the bracket 3 is used for fixing the crank arm assembly 1, the tripping assembly 2 and the manual tripping driving assembly 4;

the manual tripping driving component 4 is used for driving the tripping component 2 to move;

the manual energy storage driving assembly 5 is used for manually driving the crank arm assembly 1 to move towards the opening direction;

the bracket 3 includes a first side plate 31 and a second side plate 32 which are arranged in parallel, the first side plate 31 and the second side plate 32 are fixed through a plurality of side plate support shafts 33, the crank arm assembly 1 and the tripping assembly 2 are arranged between the first side plate 31 and the second side plate 32, and the manual tripping driving assembly 4 and the manual energy storage driving assembly 5 are arranged outside the first side plate 31.

The manual energy storage drive assembly 5 drives the connecting lever assembly 1 to move towards the opening direction to store energy, after the energy storage is finished, when the closing operation needs to be carried out, the manual operation tripping drive assembly 2 moves, the manual tripping drive assembly 4 drives the tripping assembly 2 to move, the tripping assembly 2 unlocks the connecting lever assembly 1, the energy is released, and the connecting lever assembly 1 resets instantly and drives the breaker handle to move towards the closing direction.

As shown in fig. 2, the manual energy storage driving assembly 5 comprises a driving shaft 51, a first ratchet 52 arranged on the driving shaft 51, a rotating handle 53 arranged on the driving shaft 51, a first ratchet 54 arranged on the rotating handle 53, and a first return spring for returning the first ratchet 54, wherein the driving shaft 51 passes through the first side plate 31 to be connected with the crank arm assembly 1, the rotating handle 53 is rotatably connected with the driving shaft 51, the first ratchet 54 is matched with the first ratchet 52, the rotating handle 53 is manually driven to rotate counterclockwise, because the first ratchet 54 is clamped in a tooth form of the first ratchet 52, the first ratchet 54 pushes the first ratchet 52 to rotate, at this time, the first ratchet 52 drives the driving shaft 51 to rotate, the driving shaft 51 drives the crank arm assembly 1 to move, after the rotating handle 53 rotates counterclockwise for a certain angle, the rotating handle 53 returns clockwise, the returning can be returned manually, a third return spring may be provided between the rotation handle 53 and the first side plate 31 for return; at this time, the first ratchet 54 rotates upwards firstly due to the tooth shape on the first ratchet wheel 52, after the tooth shape is separated from the first ratchet wheel 52, the first ratchet 54 enters the other tooth shape of the first ratchet wheel 52 due to the action of the first return spring, at this time, the rotating handle 53 rotates anticlockwise to continuously push the driving shaft 51 to move in a single direction, and the first return spring adopts a compression spring form to push the first ratchet 54 to rotate around a rotating shaft; meanwhile, in order to ensure that the driving shaft 51 does not return after rotating a certain angle, as shown in fig. 7 and 8, a second ratchet 57 is provided on the driving shaft 51, a second ratchet 58 is provided on the first side plate 31, the second ratchet 57 is engaged with the second ratchet 58, and a second return spring in the form of a torsion spring is provided on the second ratchet 58.

As shown in fig. 2, the center of the rotation handle 53 is circular and movably connected to the driving shaft 51, a rotation rod 55 extends upward in the radial direction of the rotation handle 53, a driving handle 56 is arranged at the end of the rotation rod 55, the middle part of the driving handle 56 is rotatably connected to the rotation rod 55, and a reset torsion spring is arranged between the driving handle 56 and the rotation rod 55 and used for resetting the driving handle 56; when manual energy storage is not carried out, the rotating rod 55 is positioned at the middle part upwards and is kept in a vertical state with the driving handle 56, the top surface of the driving handle 56 is just consistent with the uppermost shell of the energy storage type operating mechanism, and the appearance is attractive; when the operation is required, one end of the driving lever 56 is lifted to form a handle, and then the rotating lever 53 is driven to rotate by the handle, after the operation is completed, the return torsion spring automatically returns the driving lever 56 to be perpendicular to the rotating lever 55, and at this time, the rotating lever 53 is also returned to the initial position due to the action of the third return spring.

As shown in fig. 11 and 12, the crank arm assembly 1 includes a rotating shaft 11 disposed between a first side plate 31 and a second side plate 32, a first driving plate 12 and a second driving plate 13 disposed around the rotating shaft 11, a pushing shaft 14 disposed between the first driving plate 12 and the second driving plate 13, a plurality of supporting shafts disposed between the first driving plate 12 and the second driving plate 13, a locking shaft 16 disposed between the first driving plate 12 and the second driving plate 13, a toggle set 17 for toggling a handle of a circuit breaker, a crank arm resetting set 18 for resetting, a rotating shaft 19 fixed on a bracket, and a pushing plate 110 disposed on the rotating shaft 19; the first driving plate 12 and the second driving plate 13 are similar to an inverted triangle in shape, the rotating shaft 11 is arranged at the upper left of the triangle, the four supporting shafts are a first supporting shaft 151 located at the upper right, a second supporting shaft 152 located at the upper left and below the rotating shaft 11, a third supporting shaft 153 located at the middle right and a fourth supporting shaft 154 located at the middle lower part, the pushing shaft 14 is located at the middle left, the locking shaft 16 is located at the middle lower part at the left, and an annular groove is arranged on the locking shaft 16 and matched with the lock catch plate 23 in the trip assembly 2; arc-shaped grooves 111 with the same shape are formed in the middle of the first driving plate 12 and the second driving plate 13, the rotating shaft 19 penetrates through the arc-shaped grooves 111, the rotating shaft 19 is fixedly connected with the driving shaft 51 of the manual energy storage driving assembly 5 and rotates along with the rotation of the driving shaft 51, the pushing plate 110 is a cam, the rotating shaft 19 rotates to drive the pushing plate 110 to rotate, and the pushing plate 110 pushes the pushing shaft 14 in the left brake separating direction, so that the locking shaft 16 is matched with the tripping assembly 1; adopt the motion of pushing plate 110 drive crank arm group 1 piece, adopt lock axle 16 to lock, can guarantee that pushing plate 110 and lock axle 16 all have the buffering time, can not atress all the time, reduce tired, can prolong life and maintenance cycle between them.

As shown in fig. 12, the crank arm resetting group 18 includes a first compression spring limiting member 181 disposed on the first support shaft 151, a second compression spring limiting member 182 disposed on the support 3, and a crank arm resetting compression spring 183 disposed between the first compression spring limiting member 181 and the second compression spring limiting member 182, the first compression spring limiting member 181 is rotatably connected to the first support shaft 151, the second compression spring limiting member 182 is rotatably connected to the support 3, when the crank arm assembly 1 moves to the left, i.e., the crank arm assembly 1 rotates clockwise around the rotating shaft 11 as a whole, the first compression spring limiting member 181 and the second compression spring limiting member 182 compress the crank arm resetting compression spring 183, at this time, the crank arm assembly 1 is in the energy storage stage, and when the crank arm assembly 1 moves to the leftmost end, the trip assembly 2 can lock the crank arm assembly 1, the energy storage is completed, then the trip assembly 2 is controlled by the manual trip driving assembly 4 to unlock the crank arm assembly 1, then the first support shaft 151 is pushed by the crank arm resetting compression spring 183 to rotate counterclockwise around the rotating shaft 11, the crank arm assembly 1 is quickly moved from the left side to the right side as a whole, and unlocking is completed.

As shown in fig. 11 and 12, the toggle assembly 17 includes a toggle rotation shaft 171 disposed between the first driving plate 12 and the second driving plate 13, a U-shaped toggle plate 172 rotating around the toggle rotation shaft 171, and a guide shaft 173 disposed outside the U-shaped toggle plate 172, the toggle rotation shaft 171 is disposed at the bottom of the first driving plate 12 and the second driving plate 13, the bracket 3 is provided with a guide slot 311, the guide shaft 173 is inserted into the guide slot 311 and can slide in the guide slot 311, two guide shafts 173 are disposed at two sides of the U-shaped toggle plate 172, the two guide slots 311 are disposed on the bracket 3 aligned with the guide shaft 173, a handle of the circuit breaker is clamped in the U-shaped toggle plate 172, and the closed accommodating portion formed by the U-shaped toggle plate 172 and the toggle rotation shaft 171 drives the handle of the circuit breaker to move in a closing direction or a opening direction.

As shown in fig. 11, the trip assembly 2 is disposed on a rotatable unlocking shaft 21 of the bracket 3, a rotatable locking shaft 22 disposed on the bracket 3, and a locking plate 23 fixed on the locking shaft 22, and a reset torsion spring is disposed on the unlocking shaft 21; the locking shaft 22 is located in the middle of the locking plate 23, the two ends of the locking plate 23 are respectively the first end and the second end, the first end is provided with a locking notch 231 (as shown in fig. 13) with a downward opening, the locking notch 231 is matched with the annular groove on the locking shaft, the locking plate 23 does not shake left and right in the use process, the second end is abutted against the unlocking shaft 21 in the work process, the unlocking shaft 21 is provided with an unlocking groove 211, the locking shaft 16 on the crank arm assembly 1 enters the locking notch 231 from the lower part and pushes the locking plate 23 to move clockwise, meanwhile, the locking shaft 22 is provided with a reset torsion spring for resetting the locking plate 23, when the locking shaft 16 on the crank arm assembly 1 moves to the limit position, the pushing plate 110 on the crank arm assembly 1 reaches the limit position, at this time, the crank arm assembly 1 has the trend of moving right due to the function of the crank arm resetting group 18, at this time the locking notch 231 locks the locking shaft 16, so that the crank arm assembly 1 cannot move to the right; in the locked state, the notch of the unlocking groove 211 is staggered downwards with the second end of the locking plate 23, in the unlocked state, the unlocking shaft 21 rotates anticlockwise to enable the notch of the unlocking groove 211 to rotate anticlockwise until the unlocking groove 211 is aligned with the first end of the locking plate 23, the first end of the locking plate 23 can rotate anticlockwise through the unlocking groove 211, the locking notch of the first end of the locking plate 23 rotates anticlockwise, the locking shaft 16 is separated from the limit of the locking notch 231, and the crank arm assembly 1 moves rightwards under the action of the crank arm resetting group 18.

The trip assembly 2 needs to be controlled by the manual trip driving assembly 4, as shown in fig. 3 and 5, the manual trip driving assembly 4 includes a trip cam 41 fixed on the trip shaft 21 and a trip button 42 driving the trip cam 41 to move, the trip button 42 is disposed on the first side plate 31 in a strip shape and can slide on the first side plate 31 in one direction, one end of the trip button 42 is in contact with the trip cam 41, the other end of the trip button 42 is an operating end, a trip reset spring is disposed between the trip button 42 and the first side plate 31, the operating end of the trip button 42 is manually pressed, the trip button 42 pushes the trip cam 41 to rotate, and the trip cam 41 drives the trip shaft 21 to rotate to unlock; when the finger leaves the operating end, the trip return spring causes the trip button 42 to return to the un-depressed position; at this time, the unlocking shaft 21 is reset.

As shown in fig. 3 and 5-10, a control cam 8 is disposed on the driving shaft 51, a first annular surface 810, a second annular surface 820 and a third annular surface 830 are sequentially disposed on the control cam 8, a diameter of the first annular surface 810 is greater than a diameter of the second annular surface 820, a diameter of the second annular surface 820 is greater than a diameter of the third annular surface 830, a first groove 811 is disposed on the first annular surface 810, a second groove 821 is disposed on the second annular surface 820, a third groove 831 is disposed on the third annular surface 830, a first microswitch 812 is disposed on the first side plate 31, and the first microswitch 812 and the first groove 811 are matched to remotely determine the charging state; an energy storage indicating rotary handle 822 is rotatably arranged on the first side plate 31, the energy storage indicating rotary handle 822 is matched with the second groove 821 to indicate a manual energy storage state, field observation is facilitated, a reset spring is arranged between the energy storage indicating rotary handle 822 and the first side plate 31 and is a tension spring or a torsion spring, the rotary joint of the energy storage indicating rotary handle 822 and the first side plate 31 is located in the middle of the energy storage indicating rotary handle 822, when one end of the energy storage indicating rotary handle 822 enters the second groove 821, the other end of the energy storage indicating rotary handle displays energy storage completion on the support 3, two energy storage indicating signs are arranged at the other end of the energy storage indicating rotary handle 822 and are red and blue, an energy storage observation window is arranged on the support 3, and the energy storage state is confirmed by seeing the energy storage indicating signs with different colors in the energy storage observation window; a padlock plate 833 and a first auxiliary plate 832 are arranged on the first side plate 31, the padlock plate 833 can slide up and down on the first side plate 31, one end of the first auxiliary plate 832 is matched with the third groove 831, the other end of the first auxiliary plate 832 is provided with a hanging shaft 835, a limiting part 836 is arranged on the padlock plate 833, the hanging shaft 835 is matched with the limiting part 836, and the limiting part 836 is a step arranged on the padlock plate 833 and can also be a limiting groove with an opening at one side; meanwhile, a return spring is arranged between the first auxiliary plate 832 and the first side plate 31, when one end of the first auxiliary plate 832 enters the third groove 831, the energy storage is finished, at this time, the hanging shaft 835 is screwed out of the limiting portion 836, the padlock plate 833 can be pulled upwards, and meanwhile, the end portion, provided with the hanging shaft 835, of the first auxiliary plate 832 enters the bottom of the tripping button 42, so that the tripping button 42 can be prevented from being pressed to release energy, and the safe operation is ensured.

As shown in fig. 9 and 10, a second auxiliary plate 834 is disposed on the unlocking shaft 21, the second auxiliary plate 834 rotates along with the unlocking shaft 21, a return spring is disposed between the second auxiliary plate 834 and the first side plate 31, a padlock limiting plate 837 extends outward from one side of the padlock plate 833, after the padlock plate 833 is pulled upward, the second auxiliary plate 834 is located at the bottom of the padlock limiting plate 837 and abuts against the bottom of the padlock limiting plate 837, at this time, the padlock limiting plate 837 is engaged with the second auxiliary plate 834, so that the unlocking shaft 21 cannot rotate in an unlocking direction, that is, when the padlock plate 833 is pulled, it is demonstrated that a worker performs field construction and cannot perform a closing operation.

As shown in fig. 4, an inner housing 841 is disposed at the top between the first side plate 31 and the second side plate 32, a locking key 842 for locking the padlock plate 833 and preventing the padlock plate 833 from being pulled up is disposed in the inner housing 841, a locking key groove is disposed on the locking key 842, a second micro switch 843 is disposed on the inner housing 841, and the second micro switch 843 is engaged with the locking key groove to remotely prompt whether the padlock plate 833 can be pulled up, thereby ensuring the safety of construction.

An opening and closing indicator 101 capable of moving up and down is arranged on the first side plate 31, meanwhile, a return spring is arranged in front of the opening and closing indicator 101 and the first side plate 31, the return spring is a tension spring or a torsion spring, and the opening and closing indicator 101 is in contact with a bottom circuit breaker and is used for receiving the opening and closing state of the circuit breaker; the first side plate 31 is provided with a switching-on/off rotating part 102, the switching-on/off rotating part 102 is provided with a return spring, the return spring is a tension spring or a torsion spring, the rotary joint of the switching-on/off rotating part 102 and the first side plate 31 is positioned in the middle of the switching-on/off rotating part 102, one end of the switching-on/off rotating part 102 is connected with a switching-on/off indicator 101, the other end of the switching-on/off rotating part 102 is used for indicating the switching-on/off state of the circuit breaker, the other end of the switching-on/off rotating part 102 is provided with switching-off and switching-on indicator marks which can be in red, blue or other colors, a switching-on/off observation window is arranged on the support 3, and the switching-on/off state of the circuit breaker is confirmed by seeing the indicator marks in different colors in the switching-on/off observation window; the switching-on and switching-off indicator 101 moves up and down to drive the switching-on and switching-off rotating member 102 to rotate, so that the working state of the circuit breaker can be directly judged on site.

Based on the above structure, the remote automatic control is required while the manual control is performed, as shown in fig. 14 and fig. 15, the automatic energy storage driving assembly 6 for automatically driving the crank arm assembly 1 to move towards the opening direction is arranged on the outer side of the second side plate 32, the automatic energy storage driving assembly 6 comprises a motor 61 and a gear set, the gear set drives the crank arm assembly 1 to move, the motor 61 is arranged between the first side plate 31 and the second side plate 32, the motor shaft of the motor extends out through the second side plate 32, the gear set comprises a driving gear 62 arranged on the motor shaft, a plurality of driven gears 63 meshed with each other and a driving gear 64 connected with the rotating shaft 19 of the crank arm assembly 1, the driving gear 64 is connected with the rotating shaft 19 through a one-way bearing, the remote control motor 61 moves, so that the crank arm assembly 1 is driven to move leftwards through the rotation of the rotating shaft 19 due to the arrangement of the one-way bearing, the motor 61 can drive the crank arm assembly 1 to move when it rotates forward, and does not drive the crank arm assembly 1 to move when it rotates backward.

On the basis of the movement of the remote driving crank arm assembly 1, in order to realize remote unlocking, as shown in fig. 14-17, an automatic trip driving assembly 7 for driving the trip assembly 2 to move is arranged on the second side plate 32, the automatic trip driving assembly 7 comprises a trip driving shaft 71 arranged on the second side plate 32, a trip one-way bearing 72 arranged on the trip driving shaft 71, a trip driving gear 73 arranged on the trip one-way bearing 72, a trip driving plate arranged on the trip driving shaft 71, the trip driving plate drives the unlocking shaft 21 on the trip assembly 2 to rotate, when the motor 61 rotates in the forward direction, the trip driving gear 73 follows the driving gear 64 to rotate due to the action of the trip one-way bearing 72, and the trip driving shaft 71 does not rotate, when the motor 61 rotates reversely, the trip driving shaft 71 rotates along with the driving gear 64 to drive the trip driving plate to rotate, and the trip driving plate drives the unlocking shaft 21 to rotate to realize remote unlocking.

The trip driving plate shown in fig. 18 and 19 includes a first plate 74 and a second plate 75, a first end of the first plate 74 is connected to the trip driving shaft 71, and a first end of the first plate 74 rotates as the trip driving shaft 71 rotates; a first end of the second plate 75 is fixed to the unlocking shaft 21, and a second end is connected to a second end of the first plate 74; the second end of the first plate 74 is provided with a driving hole 741, the second end of the second plate 75 is provided with a driving rod 751, the driving rod 751 is inserted into the driving hole 741, and meanwhile, the diameter of the driving hole 741 needs to be ensured to be larger than that of the driving rod 751, so that the first plate 74 can drive the second plate 75 to rotate conveniently; the second plate 75 is triangular, a stabilizer 752 is disposed at a third end of the second plate 75, a stabilizing groove is disposed on the bracket 3, and the stabilizer 752 slides in the stabilizing groove, so that the operation is more stable. In practical use, after the driving hole 741 is matched with the driving rod 751, the unlocking shaft 16 cannot be rotated in other ways, that is, the unlocking shaft cannot be unlocked manually, so that the functionality is single, and the structure is not suitable for both manual unlocking and automatic unlocking, as shown in fig. 20 and 21, the driving hole 741 is designed to be open on one side, the driving rod 751 can only be pushed to move on one side of the driving hole 741, and is not limited on the other side, so that the stored energy can be released in other ways.

An arc-shaped yielding groove 742 is formed in the middle of the first plate 74, the end of the unlocking shaft 21 is inserted into the yielding groove 742, the yielding groove 742 has a yielding function, interference on the unlocking shaft 21 is avoided when the first plate 74 rotates, space is well utilized, and the weight of components is reduced. A return torsion spring is provided on the unlocking shaft 21, and one end of the return torsion spring is fixed to the second side plate 32 and the other end is fixed to the second plate 75.

In conclusion, the energy storage type operating mechanism realizes the functions of manual energy storage and manual unlocking, provides convenience for site construction, simultaneously realizes the functions of remote automatic energy storage and automatic unlocking, improves the convenience of remote control, is suitable for application occasions needing rapid switching-on, and meanwhile, in the maintenance process, maintenance personnel can manually store and release energy on site, improves the freedom degree of site maintenance and is convenient to operate.

It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims (13)

1. An energy storage operating mechanism for a circuit breaker comprising

The connecting lever assembly (1) is used for driving a breaker handle to perform switching-off and switching-on actions, moving the connecting lever assembly (1) to the switching-off direction to store energy and moving the connecting lever assembly (1) to the switching-on direction to release energy;

the tripping assembly (2) is used for unlocking the crank arm assembly (1) so that the crank arm assembly (1) releases energy;

the bracket (3) is used for fixing the crank arm assembly (1) and the tripping assembly (2);

it is characterized by also comprising

The manual tripping driving component (4) is used for manually driving the tripping component (2) to move;

the manual energy storage driving assembly (5) is used for manually driving the crank arm assembly (1) to move towards the opening direction;

the manual energy storage driving assembly (5) comprises a driving shaft (51) connected to the crank arm assembly (1), a first ratchet wheel (52) arranged on the driving shaft (51), a rotating handle (53) arranged on the driving shaft (51) and capable of rotating around the driving shaft (51), a first ratchet wheel (54) arranged on the rotating handle (53), and a first return spring used for returning the first ratchet wheel (54), wherein the first ratchet wheel (54) is matched with the first ratchet wheel (52); a second ratchet wheel (57) is arranged on the driving shaft (51), a second ratchet tooth (58) is arranged on the bracket (3), the second ratchet wheel (57) is matched with the second ratchet tooth (58), and a second return spring for returning is arranged on the second ratchet tooth (58).

2. The stored energy operating mechanism for circuit breakers according to claim 1, characterised in that a third return spring is provided between said turning handle (53) and the support (3).

3. The energy storage type operating mechanism for the circuit breaker according to claim 1, wherein the crank arm assembly (1) comprises a rotating shaft (11) disposed on the bracket (3), a first driving plate (12) and a second driving plate (13) disposed around the rotating shaft (11), a pushing shaft (14) disposed between the first driving plate (12) and the second driving plate (13), a plurality of supporting shafts disposed between the first driving plate (12) and the second driving plate (13), a locking shaft (16) disposed between the first driving plate (12) and the second driving plate (13), a toggle group (17) for toggling a handle of the circuit breaker, a crank arm resetting group (18) for resetting, a rotating shaft (19) fixed on the bracket (3), and a pushing plate (110) disposed on the rotating shaft (19), wherein the pushing plate (110) drives the pushing shaft (14) to move in a tripping direction, the rotating shaft (19) is driven by a manual energy storage driving assembly (5), and the locking shaft (16) is matched with the tripping assembly (2).

4. The energy storage type operating mechanism for the circuit breaker according to claim 3, wherein the crank arm resetting group (18) comprises a first compression spring limiting member (181) arranged on one of the supporting shafts, a second compression spring limiting member (182) arranged on the bracket (3), and a crank arm resetting compression spring (183) arranged between the first compression spring limiting member (181) and the second compression spring limiting member (182).

5. The stored energy operating mechanism for circuit breaker according to claim 3, wherein said toggle assembly (17) comprises a toggle rotating shaft (171) disposed between the first driving plate (12) and the second driving plate (13), a U-shaped toggle plate (172) rotating around the toggle rotating shaft (171), and a guide shaft (173) disposed outside the U-shaped toggle plate (172), a guide groove (311) is provided on said bracket (3), and said guide shaft (173) slides in the guide groove (311).

6. The energy storage type operating mechanism for the circuit breaker as claimed in claim 1, wherein the trip assembly (2) comprises a rotatable unlocking shaft (21) arranged on the bracket (3), a rotatable locking shaft (22) arranged on the bracket (3), and a locking plate (23) fixed on the locking shaft (22); the first end of the lock catch plate (23) is matched with the crank arm assembly (1), and the second end of the lock catch plate is propped against the unlocking shaft (21); an unlocking groove (211) is formed in the unlocking shaft (21) in the position 3, and the unlocking shaft (21) rotates to enable the second end of the locking plate (23) to be aligned with the unlocking groove (211) to achieve unlocking.

7. The stored energy operating mechanism for circuit breaker according to claim 1, characterized in that, the manual tripping driving component (4) comprises a tripping cam (41) connected to the tripping component (2) and a tripping button (42) driving the tripping cam (41) to move, and a tripping reset spring is arranged between the tripping button (42) and the bracket (3).

8. The stored energy operating mechanism for circuit breakers according to claim 1, characterized in that a control cam (8) is provided on said drive shaft (51), a first annular surface (810) is provided on said control cam (8), a first recess (811) is provided on said first annular surface (810), a first microswitch (812) is provided on said support (3), said first microswitch (812) cooperating with said first recess (811).

9. The stored energy operating mechanism of claim 1, wherein a control cam (8) is disposed on the driving shaft (51), a second ring surface (820) is disposed on the control cam (8), a second groove (821) is disposed on the second ring surface (820), a stored energy indicating knob (822) is disposed on the bracket (3), and the stored energy indicating knob (822) is engaged with the second groove (821).

10. The energy storage type operating mechanism for the circuit breaker according to claim 1, wherein a control cam (8) is disposed on the driving shaft (51), a third ring surface (830) is disposed on the control cam (8), a third groove (831) is disposed on the third ring surface (830), a rotatable first auxiliary plate (832) is disposed on the bracket (3), a padlock plate (833) capable of sliding up and down is disposed on the bracket (3), a limiting portion (836) is disposed on an upper portion of the padlock plate (833), a hanging shaft (835) is disposed at one end of the first auxiliary plate (832), and the hanging shaft (835) is engaged with the limiting portion (836).

11. The energy storage type operating mechanism for the circuit breaker according to claim 10, wherein a second auxiliary plate (834) rotating with the unlocking shaft (21) is provided on the unlocking shaft (21) of the trip unit (2), and a padlock limiting plate (837) is provided at the bottom of the padlock plate (833); when the padlock plate (833) is pulled upwards, the padlock limiting plate (837) is positioned below the padlock plate (833), and when the padlock plate (833) does not act, the padlock limiting plate (837) is positioned above the padlock plate (833).

12. The energy storage type operating mechanism for the circuit breaker as claimed in claim 1, wherein an automatic energy storage driving assembly (6) for automatically driving the crank arm assembly (1) to move towards the opening direction is arranged on the bracket (3), the automatic energy storage driving assembly (6) comprises a motor (61) and a gear set which are arranged on the bracket (3), and the gear set drives the crank arm assembly (1) to move.

13. The energy storage type operating mechanism for the circuit breaker as claimed in claim 12, wherein an automatic trip driving assembly (7) for driving the trip assembly (2) to move is disposed on the bracket (3), the automatic trip driving assembly (7) comprises a trip driving shaft (71) rotatably disposed on the bracket (3), a trip one-way bearing (72) disposed on the trip driving shaft (71), a trip driving gear (73) disposed on the trip one-way bearing (72), and a trip driving plate disposed on the trip driving shaft (71), and the trip driving plate drives the trip assembly (2) to move.

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