A manual modular spring energy storage closing mechanism

Abstract

The present invention relates to the technical field of vacuum circuit breakers, and in particular to a manual modular spring energy storage closing mechanism. It comprises a frame, wherein the frame comprises two side plates which are arranged correspondingly on the left and right and are parallel to each other, and an operating handle is rotatably connected between the two side plates, and the operating handle is extended out of the shaft of the side plate and is fitted with one end of a first rotating arm, and the other end of the first rotating arm is rotatably connected to one end of a second pull plate through a pin shaft, and the other end of the second pull plate is rotatably connected to one end of a second transmission plate of a fan-shaped structure through a pin shaft, and a torsion spring is fitted on the shaft of the side plate of the operating handle, and one end of the torsion spring is fixed on the side plate, and the other end is clamped on the side of the first rotating arm. The present invention can conveniently and quickly realize manual closing in the absence of an external power supply or in an emergency situation, and the operation is convenient and quick, very labor-saving, and very convenient to install; at the same time, it is also suitable for the transformation and upgrading of old equipment of the same type.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum circuit breakers, in particular to a manual modular spring energy storage closing mechanism. Background Art

[0002] At present, permanent magnetic mechanism vacuum circuit breakers are popular among users due to their small number of parts, simple structure and reliable performance. In the prior art, permanent magnetic mechanism vacuum circuit breakers all automatically realize the closing action, and cannot operate normally without external power supply or in certain emergency situations, which brings a lot of inconvenience to users.

[0003] Therefore, it is necessary to provide a closing mechanism capable of realizing manual closing of a permanent magnetic mechanism vacuum circuit breaker. Summary of the invention

[0004] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a manual modular spring energy storage closing mechanism with a reasonable structure, which can conveniently and quickly realize manual closing in the absence of external power supply or in emergency situations, and the operation is convenient and fast.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A manual modular spring energy storage closing mechanism, comprising a frame, the frame comprising two side plates which are arranged correspondingly on the left and right and are parallel to each other, an operating handle is rotatably connected between the two side plates, one end of a first rotating arm is mounted on the shaft portion of the operating handle extending out of the side plate, the other end of the first rotating arm is rotatably connected to one end of a second pull plate through a pin shaft, the other end of the second pull plate is rotatably connected to one end of a second transmission plate of a fan-shaped structure through a pin shaft, a torsion spring is mounted on the shaft portion of the operating handle extending out of the side plate, one end of the torsion spring is fixed to the side plate, and the other end is clamped on the side surface of the first rotating arm;

[0007] The second end of the second rotating arm is rotatably connected to the first end of the third pull plate through a pin shaft, and the other end of the third pull plate is rotatably connected to the first end of the first transmission plate of the triangular structure through a pin shaft. The second end of the first transmission plate is fixedly connected to the rotating sleeve, and the rotating sleeve is rotatably connected to the fixed shaft. Both ends of the fixed shaft are respectively fixedly connected to the two side plates, and the third end of the first transmission plate is rotatably connected to one end of the first pull plate through a pin shaft. The other end of the first pull plate is rotatably connected to one end of the half-wheel crank arm through a pin shaft. The other end of the half-wheel crank arm is sleeved on the second rotating shaft, and both ends of the second rotating shaft are respectively fixedly connected to one end of the first arm plate, and the other ends of the two first arm plates at both ends of the second rotating shaft are rotatably connected to the first rotating shaft together;

[0008] The closing camshaft is rotatably connected between the two side plates, one end of the closing camshaft extends out of the side plate and is sleeved on a second transmission plate of a fan-shaped structure that can rotate with the closing camshaft, a six-tooth ratchet is provided between the second transmission plate and the side plate, the six-tooth ratchet is sleeved on the closing camshaft and can rotate with the closing camshaft, the second transmission plate is rotatably connected to the first ratchet pawl via a pin shaft facing the side plate, the first ratchet pawl contacts the ratchet teeth of the six-tooth ratchet and blocks the six-tooth ratchet from rotating in the direction in which the ratchet teeth are set; the second ratchet pawl is rotatably connected to the side plate via a pin shaft, the second ratchet pawl contacts the ratchet teeth of the six-tooth ratchet and blocks the six-tooth ratchet from rotating in the direction in which the ratchet teeth are set, and the second ratchet pawl and the first ratchet pawl are symmetrically arranged with the six-tooth ratchet center on the left and right;

[0009] The middle part of the closing cam shaft sleeves the closing cam, the closing cam can rotate together with the closing cam shaft, the cam end surface of the closing cam contacts the outer surface of the other end of the half-wheel crank arm, and the closing cam can push the half-wheel crank arm to move through the cam end surface;

[0010] The other end of the closing cam shaft extends out of the side plate and is fixedly connected to one end of the eccentric plate. The other end of the eccentric plate is rotatably connected to the lower spring support through a connecting assembly. The lower spring support is hung with the lower ends of several energy storage springs parallel to each other. The upper ends of several energy storage springs are hung on the upper spring support. The upper spring support is rotatably connected to the side plate through a connecting assembly.

[0011] Furthermore, the two side panels are detachably connected via a plurality of connecting pieces.

[0012] Furthermore, one end of the operating handle extends out of the side plate and is clamped with the pull plate, and the pull plate can drive the operating handle to rotate.

[0013] Furthermore, the first rotating shaft is rotatably connected to one end of the two second arm plates, and the other ends of the two second arm plates are rotatably connected to two ends of the third rotating shaft respectively. The middle part of the third rotating shaft is sleeved with one end of the insulating pull rod, and the other end of the insulating pull rod is connected to the vacuum tube.

[0014] Furthermore, the first rotating shaft is rotatably connected to two reset support plates, the two reset support plates are fixedly connected to a lower support shaft, one end of a reset spring is hung on the lower support shaft, the other end of the reset spring is hung on one end of an upper connecting bolt, and the upper connecting bolt is threadedly connected to the reset support.

[0015] The beneficial effects of the present invention are as follows:

[0016] The invention has a compact and reasonable structure, can realize manual closing conveniently and quickly in the absence of external power supply or in emergency situations, is easy and fast to operate, is very labor-saving, and is also very convenient to install; and is also suitable for the transformation and upgrading of old equipment of the same type. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is the front view of the present invention.

[0018] Figure 2 It is a side view of the present invention.

[0019] Figure 3 It is a stereogram of the present invention.

[0020] Figure 4 It is a structural diagram between two side plates of the present invention.

[0021] Wherein: 1. vacuum tube; 2. energy storage spring; 3. first transmission plate; 4. first pull plate; 5. operating handle; 6. closing cam; 7. eccentric plate; 8. insulating pull rod; 9. first ratchet pawl; 10. half-wheel crank arm; 11. second transmission plate; 12. six-tooth ratchet; 13. second pull plate; 14. first rotating arm; 15. torsion spring; 16. second rotating arm; 17. third pull plate; 18. side plate; 19. second ratchet pawl; 20. first rotating shaft; 21. reset spring; 22. rotating sleeve; 23. fixed shaft; 24. pulling plate; 25. second rotating shaft; 26. first arm plate; 27. second arm plate; 28. third rotating shaft; 29. ​​closing cam shaft; 30. lower spring support; 31. upper spring support; 32. reset support plate; 33. lower support shaft; 34. upper connecting bolt; 35. reset support. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0023] like Figure 1 and Figure 2 As shown, the present invention mainly includes a frame, and the frame includes two side panels 18 which are arranged correspondingly on the left and right and parallel to each other. The two side panels 18 are detachably connected by a plurality of connecting members.

[0024] like Figure 1 and Figure 2 As shown, the operating handle 5 is rotatably connected between the two side plates 18 , and one end of the operating handle 5 extends out of the side plate 18 and is clamped with the pull plate 24 , so that the operating handle 5 can be conveniently driven to rotate through the pull plate 24 .

[0025] like Figure 1 and Figure 2 As shown, the shaft portion of the operating handle 5 extending out of the side plate 18 is fitted with one end of the first rotating arm 14, the other end of the first rotating arm 14 is rotatably connected to one end of the second pull plate 13 through a pin shaft, and the other end of the second pull plate 13 is rotatably connected to one end of the second transmission plate 11 of the fan-shaped structure through a pin shaft. The shaft portion of the operating handle 5 extending out of the side plate 18 is fitted with a torsion spring 15, one end of the torsion spring 15 is fixed to the side plate 18, and the other end is clamped on the side of the first rotating arm 14.

[0026] like Figure 3 and Figure 4 As shown, one end of a second rotating arm 16 that can rotate with the operating handle 5 is sleeved on the operating handle 5, and the second rotating arm 16 is located between the two side plates 18. The other end of the second rotating arm 16 is rotatably connected to one end of a third pull plate 17 through a pin shaft, and the other end of the third pull plate 17 is rotatably connected to the first end of the first transmission plate 3 of the triangular structure through a pin shaft, and the second end of the first transmission plate 3 is fixedly connected to a rotating sleeve 22, and the rotating sleeve 22 is rotatably connected to a fixed shaft 23, and the two ends of the fixed shaft 23 are respectively fixedly connected to the two side plates 18. The third end of the first transmission plate 3 is rotatably connected to one end of the first pull plate 4 through a pin shaft, and the other end of the first pull plate 4 is rotatably connected to one end of the half-wheel crank arm 10 through a pin shaft, and the other end of the half-wheel crank arm 10 is sleeved on the second rotating shaft 25, and the two ends of the second rotating shaft 25 are respectively fixedly connected to one end of the first arm plate 26, and the other ends of the two first arm plates 26 at the two ends of the second rotating shaft 25 are rotatably connected to the first rotating shaft 20 together, and the first rotating shaft 20 is rotatably connected to one end of the two second arm plates 27, and the other ends of the two second arm plates 27 are respectively rotatably connected to the two ends of the third rotating shaft 28. The middle part of the third rotating shaft 28 is sleeved with one end of the insulating pull rod 8, and the other end of the insulating pull rod 8 is connected to the vacuum tube 1.

[0027] like Figure 2 and Figure 3 As shown, two reset support plates 32 are rotatably connected to the first rotating shaft 20, and a lower support shaft 33 is fixedly connected between the two reset support plates 32. One end of the reset spring 21 is hung on the lower support shaft 33, and the other end of the reset spring 21 is hung on one end of an upper connecting bolt 34. The upper connecting bolt 34 is connected to the reset support 35 by threading.

[0028] like Figure 1 and Figure 3 As shown, the closing cam shaft 29 is rotatably connected between the two side plates 18, one end of the closing cam shaft 29 extends out of the side plate 18 and is sleeved with the second transmission plate 11 of a fan-shaped structure that can rotate with the closing cam shaft 29, and a six-tooth ratchet 12 is provided between the second transmission plate 11 and the side plate 18, and the six-tooth ratchet 12 is sleeved on the closing cam shaft 29 and can rotate with the closing cam shaft 29. The second transmission plate 11 is rotatably connected to the first ratchet pawl 9 through a pin shaft on the side facing the side plate 18, and the first ratchet pawl 9 contacts the ratchet teeth of the six-tooth ratchet 12 and blocks the six-tooth ratchet 12 from rotating in the direction in which the ratchet teeth are set.

[0029] like Figure 1 As shown, the side plate 18 is rotatably connected to the second ratchet pawl 19 through a pin shaft, and the second ratchet pawl 19 contacts the ratchet teeth of the six-tooth ratchet 12 and blocks the six-tooth ratchet 12 from rotating in the ratchet setting direction. The second ratchet pawl 19 and the first ratchet pawl 9 are symmetrically arranged around the center of the six-tooth ratchet 12.

[0030] like Figure 4As shown, the middle part of the closing cam shaft 29 sleeves the closing cam 6, and the closing cam 6 can rotate with the closing cam shaft 29. The cam end surface of the closing cam 6 contacts the outer surface of the other end of the half-wheel crank arm 10, and the closing cam 6 can push the half-wheel crank arm 10 to move through the cam end surface.

[0031] like Figure 3 As shown, the other end of the closing cam shaft 29 extends out of the side plate 18 and is fixedly connected to one end of the eccentric plate 7. The other end of the eccentric plate 7 is rotatably connected to the lower spring support 30 through a connecting assembly. The lower spring support 30 is hung with the lower ends of several mutually parallel energy storage springs 2. The upper ends of several energy storage springs 2 are hung on the upper spring support 31. The upper spring support 31 is rotatably connected to the side plate 18 through a connecting assembly.

[0032] Working principle of the present invention: The operating handle 5 of the present invention has three working positions, namely, the emergency stop opening position (the trigger plate 24 is horizontal), the ready position (the trigger plate 24 is vertical) and the energy storage closing position.

[0033] 1. Closing operation: When the pull plate 24 of the operating handle 5 is in the ready position, apply torque to rotate it counterclockwise by 65°. Then the first rotating arm 14 drives the second transmission plate 11 of the fan-shaped structure to rotate clockwise by 65° synchronously through the second pull plate 13. At the same time, the first ratchet pawl 9 connected to the second transmission plate 11 pushes the six-tooth ratchet 12 to rotate clockwise by 65° synchronously. At this time, the six-tooth ratchet 12 is clamped by the second ratchet pawl 19 on the side plate 18. At the same time, the eccentric plate 7 rotates following the rotation of the six-tooth ratchet 12, and drives the energy storage spring 2 to store energy. At this time, release the torque applied to the operating handle 5, and the operating handle 5 and the first rotating arm 14 return to the ready position under the action of the torsion spring 15. Repeat this operation three times, and the energy storage spring 2 not only completes the maximum energy storage, but also can release the stored energy instantly (after three operations, the rotation angle of the eccentric plate 7 exceeds 180° and has turned over the "dead point"). The released energy drives the closing cam 6 to rotate rapidly through the eccentric plate 7, pushing the half-wheel crank arm 10 installed on the first rotating shaft 20 to move rapidly, driving the permanent magnet mechanism to close through the first rotating shaft 20, and locking the closing position under the action of a strong magnetic force, completing the rapid closing action. At this time, since the operating handle 5 is in the energy storage closing position, it is controlled by the first pull plate 4, the triangular first transmission plate 3, the third pull plate 17, the second rotating arm 16 and other components, and the half-wheel crank arm 10 clamps the closing cam 6 with the arc end face of the half wheel, so the closing cam 6 cannot completely return to the initial position, and the energy stored in the energy storage spring 2 cannot be completely released, thereby ensuring the reliability of the closing action. When the torque applied to the operating handle 5 is released, the operating handle 5 returns to the ready position under the action of the torsion spring 15, and the second rotating arm 16, the third pull plate 17, the triangular first transmission plate 3, the first pull plate 4, the half-wheel crank arm 10 and other components also move accordingly, and the closing cam 6 returns to the initial position from the plane of the half-wheel crank arm 10, the energy stored in the energy storage spring 2 is completely released and returns to the initial position, and the closing action is completed.

[0034] 2. Opening operation: When the circuit breaker is in the closed state, apply torque to rotate the operating handle 5 90° clockwise, and the second rotating arm 16, the third pulling plate 17, the triangular first transmission plate 3, the first pulling plate 4, the half-wheel crank arm 10 and other components also move accordingly. The two first arm plates 26 on the first rotating shaft 20 are forcibly pulled upward to overcome the closing force of the permanent magnet mechanism, and then the rapid opening action is completed under the action of the reset spring 21.

[0035] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. A manual modular spring energy storage closing mechanism, comprising a frame, wherein the frame comprises two side plates (18) arranged correspondingly on the left and right and parallel to each other, characterized in that: An operating handle (5) is rotatably connected between the two side plates (18); one end of a first rotating arm (14) is mounted on the shaft portion of the operating handle (5) extending out of the side plate (18); the other end of the first rotating arm (14) is rotatably connected to one end of a second pull plate (13) via a pin shaft; the other end of the second pull plate (13) is rotatably connected to one end of a second transmission plate (11) of a fan-shaped structure via a pin shaft; a torsion spring (15) is mounted on the shaft portion of the operating handle (5) extending out of the side plate (18); one end of the torsion spring (15) is fixed to the side plate (18), and the other end is clamped on the side of the first rotating arm (14); The operating handle (5) is sleeved with one end of a second rotating arm (16) which can rotate with the operating handle (5); the second rotating arm (16) is located between two side plates (18); the other end of the second rotating arm (16) is rotatably connected to one end of a third pull plate (17) via a pin shaft; the other end of the third pull plate (17) is rotatably connected to a first end of a first transmission plate (3) of a triangular structure via a pin shaft; the second end of the first transmission plate (3) is fixedly connected to a rotating sleeve (22); the rotating sleeve (22) is rotatably connected to a fixed shaft (23); the fixed shaft ( 23) two ends are respectively fixedly connected to the two side plates (18), the third end of the first transmission plate (3) is rotatably connected to one end of the first pull plate (4) through a pin shaft, the other end of the first pull plate (4) is rotatably connected to one end of the half-wheel crank arm (10) through a pin shaft, the other end of the half-wheel crank arm (10) is sleeved on the second rotating shaft (25), the two ends of the second rotating shaft (25) are respectively fixedly connected to one end of the first arm plate (26), and the other ends of the two first arm plates (26) at the two ends of the second rotating shaft (25) are rotatably connected to the first rotating shaft (20) together; The two side plates (18) are rotatably connected to a closing cam shaft (29); one end of the closing cam shaft (29) extends out of the side plate (18) and is sleeved on a second transmission plate (11) of a fan-shaped structure capable of rotating together with the closing cam shaft (29); a six-tooth ratchet (12) is provided between the second transmission plate (11) and the side plate (18); the six-tooth ratchet (12) is sleeved on the closing cam shaft (29) and is capable of rotating together with the closing cam shaft (29); and the second transmission plate (11) is disposed on a side facing the side plate (18) through The pin shaft is rotatably connected to the first ratchet pawl (9), the first ratchet pawl (9) contacts the ratchet teeth of the six-tooth ratchet (12) and blocks the six-tooth ratchet (12) from rotating in the ratchet setting direction; the side plate (18) is rotatably connected to the second ratchet pawl (19) via the pin shaft, the second ratchet pawl (19) contacts the ratchet teeth of the six-tooth ratchet (12) and blocks the six-tooth ratchet (12) from rotating in the ratchet setting direction, and the second ratchet pawl (19) and the first ratchet pawl (9) are symmetrically arranged with respect to the center of the six-tooth ratchet (12); The closing cam (6) is sleeved on the middle part of the closing cam shaft (29), the closing cam (6) can rotate together with the closing cam shaft (29), the cam end surface of the closing cam (6) contacts the outer surface of the other end of the half-wheel crank arm (10), and the closing cam (6) can push the half-wheel crank arm (10) to move via the cam end surface; The other end of the closing cam shaft (29) extends out of the side plate (18) and is fixedly connected to one end of the eccentric plate (7); the other end of the eccentric plate (7) is rotatably connected to a lower spring support (30) via a connecting assembly; the lower ends of a plurality of mutually parallel energy storage springs (2) are hung on the lower spring support (30); the upper ends of the plurality of energy storage springs (2) are hung on an upper spring support (31); and the upper spring support (31) is rotatably connected to the side plate (18) via a connecting assembly; The first rotating shaft (20) is rotatably connected to one end of two second arm plates (27), and the other ends of the two second arm plates (27) are rotatably connected to two ends of a third rotating shaft (28), and the middle of the third rotating shaft (28) is sleeved with one end of an insulating pull rod (8), and the other end of the insulating pull rod (8) is connected to the vacuum tube (1); The first rotating shaft (20) is rotatably connected to two reset support plates (32), a lower support shaft (33) is fixedly connected between the two reset support plates (32), one end of a reset spring (21) is hung on the lower support shaft (33), the other end of the reset spring (21) is hung on one end of an upper connecting bolt (34), and the upper connecting bolt (34) is connected to the reset support (35) through a thread.

2. A manual modular spring energy storage closing mechanism according to claim 1, characterized in that: The two side panels (18) are detachably connected via a plurality of connecting pieces.

3. A manual modular spring energy storage closing mechanism according to claim 1, characterized in that: One end of the operating handle (5) extends out of the side plate (18) and is clamped to the trigger plate (24), and the trigger plate (24) can drive the operating handle (5) to rotate.

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