A universal circuit breaker handle structure

Abstract

The present invention discloses a handle structure of a universal circuit breaker, which includes a transmission rotating shaft penetrating through one side wall of the operating mechanism, and an energy storage handle rotatably sleeved on the transmission rotating shaft. A clutch structure for forming a linkage cooperation in a single direction is provided between the energy storage handle and the transmission rotating shaft. A winding spring structure is provided on one side wall of the operating mechanism, and one end of the winding spring structure extends and is connected to the circumferential outer wall of the energy storage handle. This technical solution uses a winding spring structure to replace the traditional torsion spring structure. When the handle rotates forward for energy storage operation, the winding spring structure is stretched and bent by the handle to generate elastic deformation, and provides an elastic force for the reverse rotation of the handle to achieve the quick return of the handle. The operation is labor-saving and simple. This winding spring structure is installed between the operating mechanism and the circumferential outer wall of the operating handle, and is more convenient to install and use, reduces the setting cost, and improves the reliability and stability of the use of the handle structure of the universal circuit breaker.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and particularly to a handle structure of an air circuit breaker. Background Art

[0002] The air circuit breaker realizes the closing and opening of the product through an operating mechanism. When the air circuit breaker is manually energized, an external force is used to rotate the energy storage handle, and the ratchet on the energy storage handle and the ratchet on the operating mechanism drive the rotating shaft to rotate, so that the energy storage spring of the operating mechanism is compressed to complete manual energy storage; alternatively, the air circuit breaker drives the rotating shaft of the operating mechanism to rotate through a motor to realize electric energy storage.

[0003] All air circuit breakers have a manual energy storage handle. The energy storage handle rotates to drive the operating mechanism to compress the energy storage spring to realize manual energy storage. After the operating mechanism releases energy, the ratchet returns to the initial position. At this time, after the energy storage handle is released, the return movement is realized through a return torsion spring. Refer to Figure 7 the shown circuit breaker energy storage handle. The energy storage handle 01 is rotatably arranged beside the outer wall of one side of the operating mechanism 02. The operating mechanism includes a rotating shaft 03 extending out of its one side side wall. A circular boss for passing through the rotating shaft is arranged on the circular side surface of the energy storage handle. The return torsion spring 05 is sleeved at the circular boss. A positioning pin 04 is arranged on the outer wall of one side of the operating mechanism. A positioning block is formed on the circular side surface of the energy storage handle. The two end feet of the return torsion spring 05 extend and abut between the positioning block and the positioning pin, so that the energy storage handle can realize the return rotation by means of the acting force of the return torsion spring.

[0004] The above energy storage handle realizes the return by adopting a torsion spring method, but there are still the following problems in actual use: One end foot of this torsion spring abuts against the positioning pin. During the frequent operation of the handle, it is repeatedly squeezed and quickly restores deformation, so that the end foot of the torsion spring is easily detached from the positioning pin, resulting in the handle not being able to automatically return to its position, and the structural stability is poor, thus causing the failure of the manual energy storage and closing of the circuit breaker; and the torsion spring is installed on the side of the handle and is blocked by other components of the mechanism. It is necessary to disassemble multiple components on the handle and the mechanism to expose the torsion spring part, and the installation and maintenance are relatively inconvenient. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problems in the prior art that the energy storage handle adopts a torsion spring method to realize the return, the installation and maintenance of this torsion spring are relatively inconvenient, and the end foot of the torsion spring is easily detached from the positioning pin during frequent use, resulting in the handle not being able to automatically return to its position.

[0006] To solve the above problems, the present invention provides a handle structure of an air circuit breaker, including:

[0007] An operating mechanism having a transmission rotating shaft extending through one side side wall thereof;

[0008] The energy storage handle is rotatably sleeved on the transmission rotating shaft. A clutch structure is provided between the energy storage handle and the transmission rotating shaft to form a linkage cooperation between the two in a single direction. The energy storage handle has an energy storage state in which it forms a linkage cooperation with the transmission rotating shaft when rotating forward, and a return state in which it releases the linkage cooperation with the transmission rotating shaft when rotating backward.

[0009] The coil spring structure is positioned on one side wall of the operating mechanism. One end of it extends along the rotation direction of the energy storage handle and is connected to the circumferential outer wall of the energy storage handle. When the energy storage handle rotates forward, the coil spring structure is stretched and bent to generate elastic deformation, and applies an elastic force for the energy storage handle to rotate backward, so as to drive the energy storage handle to switch from the energy storage state to the return state after the external force is removed.

[0010] As a preferred solution, the coil spring structure is arranged close to the end point of the stroke reached by the reverse rotation of the energy storage handle.

[0011] As a preferred solution, the other end of the coil spring structure is wound around a positioning shaft and is detachably installed on one side wall of the operating mechanism through the positioning shaft.

[0012] As a preferred solution, the energy storage handle includes a rotating disc connected to the transmission rotating shaft and an operating part formed on the outer circumferential side wall of the rotating disc. The rotating disc includes an upper arc wall and a lower arc wall respectively arranged on both sides of the operating part. One end of the coil spring structure extends and is connected to the upper arc wall along the outer wall of the rotating disc.

[0013] As a preferred solution, the coil spring structure is fixedly connected to the rotating disc through a fixing structure. The fixing structure includes a positioning card slot arranged on the upper arc wall and a clamping part formed by bending one end of the coil spring structure and fitting and clamping in the positioning card slot.

[0014] As a preferred solution, the fixing structure further includes a fixing hole adjacent to the positioning card slot and arranged on the upper arc wall, a connecting hole correspondingly arranged on one end of the coil spring structure, and a fastener passing through the connecting hole and fixed in the fixing hole.

[0015] As a preferred solution, the positioning card slot has an insertion port extending along the axial direction of the rotating disc to the side surface of the rotating disc, and the clamping part is inserted into the positioning card slot from the insertion port.

[0016] As a preferred solution, the positioning slot is an L-shaped slot structure, which includes an inner port formed in the rotating disc, and an outer port connected to the inner port and extending to the upper arc wall surface. The fixing hole is connected to the inner port, and the fastener penetrates into the inner port to extrude and fasten the clamping part.

[0017] As a preferred embodiment, the clutch structure includes a ratchet that is linked to the transmission shaft, a driving pawl that is arranged on the inner side of the rotating disc and forms an abutment with the ratchet, and a stop pawl that is arranged on the side wall of the operating mechanism and abuts against the ratchet. The driving pawl pushes the ratchet and the transmission shaft to rotate forward when the energy storage handle is in the energy storage state, and the stop pawl is used to limit the reverse rotation of the ratchet when the energy storage handle is in the return state; a V-shaped keyway is provided on the transmission shaft, and a V-shaped protrusion that is inserted into the V-shaped keyway is correspondingly provided on the inner side of the ratchet, and the matching area between the V-shaped protrusion and the V-shaped keyway is 25-50mm. 2 .

[0018] As a preferred solution, the driving pawl and the anti-recoil pawl are rotatably arranged on the side wall of the operating mechanism and the inner side of the energy storage handle through positioning columns respectively; a first spring is provided between the driving pawl and the rotating disk for driving the driving pawl to rotate toward the side close to the ratchet, and a limiting column is also provided on the rotating disk to cooperate with the driving pawl and resist against it; a second spring is provided between the anti-recoil pawl and the side wall of the operating mechanism for driving the anti-recoil pawl to rotate toward the side close to the ratchet.

[0019] The technical solution of the present invention has the following advantages over the prior art:

[0020] 1. In the universal circuit breaker handle structure provided by the present invention, a coil spring structure is provided on one side wall of the operating mechanism, so that the coil spring structure extends and is connected to the circumferential outer wall of the energy storage handle. This coil spring structure has the characteristics of telescopic extension during the rotation of the handle, and can automatically drive the handle to return to its original position by virtue of its own elastic force when the external force on the handle is removed. The design of this technical solution replaces the traditional torsion spring structure with the coil spring structure, which has a simple structure and is relatively convenient to install and use. When the handle is rotated forward to perform the energy storage operation, the coil spring structure is stretched and bent by the handle to produce elastic deformation, and provides elastic force for the handle to rotate in the reverse direction, so as to realize the rapid return of the handle, which is labor-saving and simple to operate. In addition, the coil spring structure is installed on the side wall of the operating mechanism so as to be exposed outside the handle. The connection can be achieved by simply extending one end of the coil spring structure to the circumferential outer wall of the handle. The installation and maintenance operations of the coil spring structure are relatively convenient, thereby reducing the installation cost and improving the reliability and stability of the universal circuit breaker handle structure.

[0021] 2. In the universal circuit breaker handle structure provided by the present invention, the spiral spring structure is disposed near the end point of the stroke reached by the reverse rotation of the energy storage handle. Such a design enables the length of the stretched spiral spring structure to reach the maximum when the energy storage handle rotates forward, and at the same time has a greater elastic deformation energy storage. When the external force is removed, the handle can rotate reversely by means of the elastic force of the spiral spring structure, thereby driving the energy storage handle to reset to the initial position where energy storage starts, preparing for the next energy storage operation, and ensuring the manual energy storage and closing process of the energy storage handle.

[0022] 3. In the universal circuit breaker handle structure provided by the present invention, one end of the spiral spring structure is wound around the positioning shaft and fixed on the side wall of the operating mechanism through the positioning shaft, which plays a positioning and installation effect on the spiral spring structure on the operating mechanism. Then, the other end of the spiral spring structure is fixedly connected to the upper arc wall. With this structural arrangement, when the energy storage handle rotates forward, it will drive the upper arc wall of the rotating disc to move away from the positioning shaft. The upper arc wall serves as the force application point for the spiral spring structure to drive the energy storage handle to rotate back, thereby stretching and bending the spiral spring structure by a certain length and making it abut against the upper arc wall. Since the spiral spring structure is in the energy storage state, the direction of the force applied to it is more consistent with the direction of the energy storage handle returning to its original position, thus realizing the effect of the spiral spring structure driving the energy storage handle to automatically return to its original position.

[0023] 4. In the universal circuit breaker handle structure provided by the present invention, by providing a positioning slot and a fixing hole on the upper arc wall of the rotating disc, and forming a clamping portion at the other end of the spiral spring structure. With this structural arrangement, during installation, as long as the other end of the spiral spring structure is snapped into the positioning slot on the upper arc wall through the clamping portion, it first plays a positioning and connecting role for the other end of the spiral spring structure on the circumferential outer wall of the energy storage handle. Then, a fastener is passed through the other end of the spiral spring structure and fixed to the fixing hole on the upper arc wall, realizing the fixed connection between the spiral spring structure and the upper arc wall, so as to prevent the spiral spring structure from falling off and separating from the circumferential outer wall of the energy storage handle. The structure is simple, the installation is relatively convenient, and the assembly efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is a three-dimensional structural schematic diagram of the universal circuit breaker handle structure of the present invention;

[0026] Figure 2Schematic diagram of the structure of the universal circuit breaker handle of the present invention in another direction;

[0027] Figure 3 Schematic diagram of the installation structure of the coil spring structure of the present invention;

[0028] Figure 4 Partial enlarged schematic diagram of the positioning card slot of the present invention;

[0029] Figure 5 Schematic diagram of the structure of the energy storage handle of the present invention;

[0030] Figure 6 Schematic diagram of the clutch structure on the energy storage handle of the present invention;

[0031] Figure 7 Schematic diagram of the installation structure of an energy storage handle in the prior art;

[0032] Explanation of reference numerals: 1, operating mechanism; 2, energy storage handle; 21, rotating disc; 22, operating part; 23, upper arc wall; 24, lower arc wall; 3, coil spring structure; 31, clamping part; 32, connecting hole; 4, positioning shaft; 5, positioning card slot; 51, insertion port; 52, inner port; 53, outer port; 6, fixing hole; 7, clutch structure; 71, ratchet wheel; 711, V-shaped protrusion; 72, driving claw; 73, anti-return claw; 74, first spring; 75, second spring; 76, limiting column; 8, transmission rotating shaft. Detailed implementation manners

[0033] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] Embodiment 1

[0038] The following is a specific description of this embodiment with reference to the accompanying drawings:

[0039] This embodiment provides a universal circuit breaker handle structure as shown in Figures 1-6 and includes:

[0040] An operating mechanism 1 having a transmission rotating shaft 8 extending through one side wall thereof;

[0041] A storage handle 2 rotatably sleeved on the transmission rotating shaft 8, and a clutch structure 7 is provided between the storage handle 2 and the transmission rotating shaft 8 to form a linkage cooperation in a single direction between the two. The storage handle 2 has a storage state in which it forms a linkage cooperation with the transmission rotating shaft 8 when rotating forward, and a return state in which it is disengaged from the linkage cooperation with the transmission rotating shaft 8 when rotating backward;

[0042] A spiral spring structure 3 is positioned on one side wall of the operating mechanism 1, and one end thereof extends along the rotation direction of the storage handle 2 and is connected to the circumferential outer wall of the storage handle 2. The spiral spring structure 3 is stretched and bent to generate elastic deformation when the storage handle 2 rotates forward, and applies an elastic force for the storage handle 2 to rotate backward to drive the storage handle 2 to switch from the storage state to the return state after the external force is withdrawn.

[0043] In the above embodiment, the spiral spring structure 3 has the characteristic of stretching and extending during the rotation of the handle, and can drive the handle to automatically return by means of its own elastic force when the external force of the handle is withdrawn. With this technical solution, the traditional torsion spring structure is replaced by the spiral spring structure 3, which has a simple structure and is relatively convenient for installation and use. When the handle rotates forward for energy storage operation, the spiral spring structure 3 is stretched and bent by the handle to generate elastic deformation, and provides an elastic force for the handle to rotate backward to realize the quick return of the handle, with labor-saving and simple operation. In addition, the spiral spring structure 3 is installed on the side wall of the operating mechanism 1 and is exposed outside the handle. As long as one end of the spiral spring structure 3 is extended and connected to the circumferential outer wall of the handle, the connection can be realized. The installation and maintenance operations of the spiral spring structure 3 are relatively convenient, reducing the setting cost and improving the reliability and stability of the use of the universal circuit breaker handle structure.

[0044] As a preferred embodiment, the spiral spring structure 3 is disposed near the end point of the stroke reached by the reverse rotation of the energy storage handle 2. Such a design enables the length of the spiral spring structure 3 stretched during the forward rotation of the energy storage handle 2 to reach the maximum, and at the same time, it has a greater elastic deformation energy storage. When the external force is removed from the handle, the elastic force of the spiral spring structure 3 can be used to drive the reverse rotation, thereby driving the energy storage handle 2 to return to the initial position where energy storage starts, preparing for the next energy storage operation and ensuring the manual energy storage and closing process of the energy storage handle 2. It should be noted that the forward rotation and reverse rotation referred to herein mean that the two rotation directions of a certain component are different, and do not represent its actual rotation direction. For example, if the forward rotation of the energy storage handle 2 is counterclockwise rotation, then the reverse rotation of the energy storage handle 2 is clockwise rotation.

[0045] The following will be combined with Figures 1-5 to make a detailed description of the specific setting method of the spiral spring structure 3:

[0046] The other end of the spiral spring structure 3 is wound around the positioning shaft 4 and is detachably installed on one side wall of the operating mechanism 1 through the positioning shaft 4, which plays a positioning and installation effect on the spiral spring structure 3 on the operating mechanism 1. The energy storage handle 2 includes a rotating disc 21 connected to the transmission rotating shaft 8 and an operating portion 22 integrally formed on the outer peripheral side wall of the rotating disc 21. The rotating disc 21 includes an upper arc wall 23 and a lower arc wall 24 respectively disposed on both sides of the operating portion 22. One end of the spiral spring structure 3 is bent and extended along the outer wall of the rotating disc 21 and fixed in the upper arc wall 23. With such a structural setting, the other end of the spiral spring structure 3 is fixed on the side wall of the operating mechanism 1 through the positioning shaft 4, and then one end of the spiral spring structure 3 is fixedly connected to the upper arc wall 23. When the energy storage handle 2 rotates forward, it will drive the upper arc wall 23 of the rotating disc 21 to move away from the positioning shaft 4. The upper arc wall 23 serves as the force application point for the spiral spring structure 3 to drive the energy storage handle 2 to return and rotate, thereby stretching and bending the spiral spring structure 3 by a certain length and making it abut against the upper arc wall. Since the spiral spring structure 3 is in an energy storage state, the direction of the force applied to it is more consistent with the return direction of the energy storage handle 2, thereby achieving the effect of the spiral spring structure 3 driving the energy storage handle 2 to automatically return.

[0047] Such as Figures 3-5As shown, the coil spring structure 3 is fixedly connected to the rotating disc 21 through a fixing structure. The fixing structure includes a positioning slot 5 provided on the upper arc wall 23, and a clamping portion 31 bent and formed at one end of the coil spring structure 3 and fittingly clamped in the positioning slot 5. Such a structural design first positions and connects one end of the coil spring structure 3 to the upper arc wall 23 by means of clamping, realizing the elastic connection between the energy storage handle 2 and the coil spring structure 3. In order to further improve the reliability and stability of the connection between the energy storage handle 2 and the coil spring structure 3, the fixing structure further includes a fixing hole 6 adjacent to the positioning slot 5 and provided on the upper arc wall 23, a connection hole 32 correspondingly provided at the other end of the coil spring structure 3, and a fastener passing through the connection hole 32 and fixed in the fixing hole 6. The fastener can preferably be a screw or a pin, etc. With such a structural arrangement, during installation, as long as the other end of the coil spring structure 3 is snapped into the positioning slot 5 of the upper arc wall 23 through the clamping portion 31, and then the fastener passes through the other end of the coil spring structure 3 and is fixed to the fixing hole 6 of the upper arc wall 23, the fixed connection between the coil spring structure 3 and the upper arc wall 23 is realized, preventing the coil spring structure 3 from falling off and separating from the circumferential outer wall of the energy storage handle 2. The structure is simple and convenient to install, improving the assembly efficiency.

[0048] As a specific structural arrangement, the positioning slot 5 is an L-shaped groove structure, and the clamping portion 31 correspondingly has an L shape. The positioning slot 5 has an insertion port 51 extending along the axial direction of the rotating disc 21 to the side surface of the rotating disc 21. The clamping portion 31 is snapped into the positioning slot 5 from the insertion port 51. Such a setting is beneficial for the L-shaped clamping portion 31 to be directly snapped from the insertion port 51 on the side surface of the rotating disc 21 into the L-shaped positioning slot 5, making the installation relatively easy and convenient. As Figure 6 shown, the positioning slot 5 includes an inner port 52 formed in the rotating disc 21, and an outer port 53 connected to the inner port 52 and extending to the surface of the upper arc wall 23. The fixing hole 6 is connected to the inner port 52. The fastener penetrates into the inner port 52 and presses and fastens the clamping portion 31, thereby reliably fixing the clamping portion 31 in the positioning slot 5, preventing the clamping portion 31 from loosening in the positioning slot 5 during the telescopic process of the coil spring structure 3. The cooperation is fixedly reliable and the installation stability is good.

[0049] The following will Figures 5-6 make a detailed description of the specific setting method of the clutch structure 7:

[0050] The clutch structure 7 includes a ratchet 71 which is linked to the transmission shaft 8, a driving pawl 72 which is arranged on the inner side of the rotating disk 21 and forms an abutment with the ratchet 71, and a stop pawl 73 which is arranged on the side wall of one side of the operating mechanism 1 and abuts against the ratchet 71. The driving pawl 72 pushes the ratchet 71 and the transmission shaft 8 to rotate forward when the energy storage handle 2 is in the energy storage state, and the stop pawl 73 is used to limit the reverse rotation of the ratchet 71 when the energy storage handle 2 is in the return state. A V-shaped keyway is provided on the transmission shaft 8, and a V-shaped protrusion 711 which is inserted into the V-shaped keyway is correspondingly provided on the inner side of the ratchet 71. The matching area between the V-shaped protrusion 711 and the V-shaped keyway is 25-50mm2, and the force transmission contact surface is large, thereby forming a linkage fit between the transmission shaft 8 and the ratchet 71. This clutch structure is set up. During the energy storage closing process of the circuit breaker, the energy storage handle 2 is operated to rotate forward, and the energy storage handle 2 drives the ratchet 71 to rotate synchronously through the driving claw 72, thereby driving the transmission shaft 8 to rotate forward. The transmission shaft 8 is partially connected to the energy storage structure in the operating mechanism 1, thereby driving the energy storage spring in the operating mechanism to compress to complete manual energy storage, realizing a one-way transmission effect between the energy storage handle 2 and the transmission shaft 8. The anti-retraction claw 73 slides between the teeth of the ratchet 71 when the energy storage handle 2 rotates forward, without affecting the linkage between the energy storage handle 2 and the ratchet 71. ; Each time the energy storage handle 2 is rotated forward to the full position, it needs to remove the external force and return to its original position before it can store energy again, so that the energy storage handle 2 starts to rotate in the opposite direction under the action of the coil spring structure 3. At this time, the driving claw 72 slides between the teeth of the ratchet 71 under the drive of the energy storage handle, thus releasing the linkage between the energy storage handle and the ratchet. Since the ratchet 71 is connected to the transmission shaft 8 and is affected by the force of the energy storage spring, the stop claw 73 is pressed against the ratchet 71 to prevent the ratchet from reversing, thereby ensuring that the energy storage spring maintains the energy storage state during the return process of the energy storage handle 2 until the energy storage closing operation of the circuit breaker is completed.

[0051] like Figure 6As shown in the figure, the driving pawl 72 and the anti-reverse pawl 73 are respectively rotatably arranged on the side wall of the operating mechanism 1 and the inner side surface of the energy storage handle 2 through positioning posts. A first spring 74 for driving the driving pawl 72 to rotate towards the ratchet wheel 71 is arranged between the driving pawl 72 and the rotating disc 21. In addition, a second spring 75 for driving the anti-reverse pawl 73 to rotate towards the ratchet wheel 71 is arranged between the anti-reverse pawl 73 and the side wall of the operating mechanism 1. The driving pawl and the anti-reverse pawl are elastically abutted against the ratchet wheel 71 through the first spring 74 and the second spring 75 respectively, so as to form a one-way transmission cooperation between the energy storage handle 2 and the ratchet wheel 71. In order to limit the installation position of the driving pawl 72 on the inner side surface of the energy storage handle 2, so that the driving pawl 72 and the ratchet wheel 71 can form an accurate connection and cooperation when the energy storage handle 2 and the operating mechanism 1 are assembled, a limiting post 76 which is in contact and cooperation with the driving pawl 72 is further arranged on the rotating disc 21. After the driving pawl 72 is installed on the inner side surface of the energy storage handle 2, it will abut against the limiting post 76 due to the elastic force of the first spring 74, thus playing a role in limiting the installation of the driving pawl 72 on the inner side surface of the energy storage handle 2, which is convenient for assembly and improves the installation efficiency.

[0052] Obviously, the above embodiments are only examples given for clear illustration, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A universal circuit breaker handle structure, characterized in that, Comprising: An operating mechanism (1) having a transmission rotating shaft (8) extending through one side wall thereof; A energy storage handle (2) rotatably sleeved on the transmission rotating shaft (8), a clutch structure (7) is provided between the energy storage handle (2) and the transmission rotating shaft (8) to form a linkage cooperation in a single direction between the two, the energy storage handle (2) has an energy storage state in which it forms a linkage cooperation with the transmission rotating shaft (8) when rotating forward, and a return state in which it releases the linkage cooperation with the transmission rotating shaft (8) when rotating backward; A coil spring structure (3) is positioned on one side wall of the operating mechanism (1), one end of which extends along the rotation direction of the energy storage handle (2) and is connected to the circumferential outer wall of the energy storage handle (2), the coil spring structure (3) is stretched and bent to generate elastic deformation when the energy storage handle (2) rotates forward, and applies an elastic force for the energy storage handle (2) to rotate backward to drive the energy storage handle (2) to switch from the energy storage state to the return state after the external force is removed; The energy storage handle (2) includes a rotating disk (21) connected to the transmission rotating shaft (8), and an operating part (22) formed on the outer circumferential side wall of the rotating disk (21), the rotating disk (21) includes an upper arc wall (23) and a lower arc wall (24) respectively arranged on both sides of the operating part (22), one end of the coil spring structure (3) is bent and extended along the outer wall of the rotating disk (21) and fixed on the upper arc wall (23); The coil spring structure (3) is fixedly connected to the rotating disk (21) through a fixing structure, the fixing structure includes a positioning slot (5) provided on the upper arc wall (23), and a clamping part (31) bent and formed at one end of the coil spring structure (3) and cooperatively clamped in the positioning slot (5); 2. The universal circuit breaker handle structure according to claim 1, characterized in that: The coil spring structure (3) is disposed near the end point of the stroke reached by the reverse rotation of the energy storage handle (2); 3. The universal circuit breaker handle structure according to claim 2, wherein: The other end of the coil spring structure (3) is wound around a positioning shaft (4) and is detachably mounted on one side wall of the operating mechanism (1) through the positioning shaft (4); 4. The universal circuit breaker handle structure according to claim 1, characterized in that: The fixing structure further includes a fixing hole (6) adjacent to the positioning slot (5) on the upper arc wall (23), a connecting hole (32) correspondingly provided at one end of the coil spring structure (3), and a fastener passing through the connecting hole (32) and fixed in the fixing hole (6); 5. The universal circuit breaker handle structure according to claim 4, characterized in that: The positioning slot (5) has an insertion port (51) extending along the axial direction of the rotating disk (21) to the side surface of the rotating disk (21), and the clamping part (31) is inserted into the positioning slot (5) from the insertion port (51); 6. The universal circuit breaker handle structure according to claim 5, wherein: The positioning slot (5) is an L-shaped groove structure, which includes an inner port (52) formed in the rotating disk (21), and an outer port (53) connected to the inner port (52) and extending to the surface of the upper arc wall (23), the fixing hole (6) is communicated with the inner port (52), and the fastener penetrates into the inner port (52) to squeeze and fasten the clamping part (31).

7. The universal circuit breaker handle structure according to any one of claims 1-6, characterized in that: The clutch structure (7) comprises a ratchet (71) which is linked and arranged on the transmission shaft (8), a driving pawl (72) which is arranged on the inner side of the rotating disc (21) and forms an abutment with the ratchet (71), and a back-stopping pawl (73) which is arranged on a side wall of the operating mechanism (1) and forms an abutment with the ratchet (71), wherein the driving pawl (72) pushes the ratchet (71) and the transmission shaft (8) to rotate in the forward direction when the energy storage handle (2) is in the energy storage state, and the back-stopping pawl (73) is used to limit the reverse rotation of the ratchet (71) when the energy storage handle (2) is in the return state; a V-shaped keyway is provided on the transmission shaft (8), and a V-shaped protrusion (711) which is inserted into the V-shaped keyway is correspondingly provided on the inner side of the ratchet (71), and the matching area between the V-shaped protrusion and the V-shaped keyway is 25-50 mm².

8. The universal circuit breaker handle structure according to claim 7, characterized in that: The driving claw (72) and the anti-retraction claw (73) are rotatably arranged on the side wall of the operating mechanism (1) and the inner side surface of the energy storage handle (2) respectively through positioning columns; a first spring (74) is provided between the driving claw (72) and the rotating disk (21) for driving the driving claw (72) to rotate toward the side close to the ratchet (71); and a limiting column (76) is also provided on the rotating disk (21) for cooperating with and abutting against the driving claw (72); a second spring (75) is provided between the anti-retraction claw (73) and the side wall of the operating mechanism (1) for driving the anti-retraction claw (73) to rotate toward the side close to the ratchet (71).

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