A rotary operating device and a circuit breaker

Abstract

The present invention provides a rotary operating device and a circuit breaker, comprising: an operating rod; a mounting structure provided on the operating rod and having a first boss and a second boss; a fixing sleeve adapted to be mounted on the base housing of the circuit breaker, wherein the mounting structure is rotatably located in the fixing sleeve and is provided with a first limiting groove and a second limiting groove; a counterclockwise wheel rotatably provided in the first limiting groove and having at least one first arc-shaped limiting hole, and the first boss extends into the first arc-shaped limiting hole; a first elastic member; a clockwise wheel rotatably provided in the second limiting groove and having at least one second arc-shaped limiting hole, and the second boss extends into the second arc-shaped limiting hole; a second elastic member; and a handle fixedly connected to the first end of the operating rod. The purpose of the present invention is to provide a rotary operating device capable of performing opening and closing operations on a circuit breaker provided on a high-voltage electric pole outdoors.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and particularly relates to a rotary operating device and a circuit breaker. Background Art

[0002] A circuit breaker is a mechanical switching device that can connect and disconnect the normal current carried by a line, and can also connect and cut off the carried current under specified abnormal circuit conditions and within a certain time. When serious overload, short circuit, undervoltage and other faults occur, it can automatically cut off the circuit. Its function is equivalent to the combination of a fuse switch and an over- and under-thermal relay, etc. Moreover, generally no parts need to be changed after breaking the fault current, and it has been widely used.

[0003] As Figure 16 shown, it is an internal transmission mechanism of a circuit breaker developed by the applicant. Among them, the closing and opening operations of the circuit breaker are carried out by installing a closing and opening button assembly on the circuit breaker panel, and using the button assembly to drive an electro-hydraulic push rod to push a closing plate 9 and an opening plate 8 respectively arranged on the closing half shaft 91 and the opening half shaft 81 of the operating mechanism to complete the closing and opening operations of the circuit breaker, so as to connect the current in the circuit when closing and cut off the current in the circuit when opening.

[0004] When the applicant was researching and developing, it was found that when the circuit breaker is set on an outdoor high-altitude high-voltage power grid or a high-voltage electric pole, it is not convenient for the operator to directly operate the button to achieve closing and opening. The method of using the above-mentioned closing and opening button assembly to achieve the closing and opening operations of the circuit breaker is not very applicable. Summary of the Invention

[0005] Therefore, the purpose of the present invention is to provide a rotary operating device and a circuit breaker, and the rotary operating device can be applicable to the closing and opening operations of the circuit breaker when the circuit breaker is set on an outdoor high-altitude high-voltage power grid or a high-voltage electric pole.

[0006] To this end, the present invention provides a rotary operating device, including:

[0007] An operating rod, which is adapted to be rotatably installed on the base housing of the circuit breaker, includes a first end extending out of the base housing and a second end extending into the base housing. A first pressing plate adapted to press against the opening plate and a second pressing plate adapted to press against the closing plate are provided at the second end of the operating rod;

[0008] An installation structure, which is fixedly arranged on the operating rod. A first boss is provided on the front surface of the installation structure, and a second boss is provided on the back surface of the installation structure;

[0009] A fixing sleeve, which is adapted to be fixedly installed on the base housing of the circuit breaker. The installation structure is rotatably located in the fixing sleeve. A first limiting groove is provided on the front surface of the fixing sleeve, and a second limiting groove is provided on the back surface of the fixing sleeve;

[0010] The counterclockwise wheel is rotatably arranged in the first limiting groove and penetrates through the operating rod. The operating rod has a clearance fit with the counterclockwise wheel. At least one first arc-shaped limiting hole is provided on the counterclockwise wheel, and the first boss extends into the first arc-shaped limiting hole;

[0011] The first elastic member is arranged between the first boss and the first end of the first arc-shaped limiting hole;

[0012] The clockwise wheel is rotatably arranged in the second limiting groove and penetrates through the operating rod. The operating rod has a clearance fit with the clockwise wheel. At least one second arc-shaped limiting hole is provided on the clockwise wheel, and the second boss extends into the second arc-shaped limiting hole;

[0013] The second elastic member is arranged between the second boss and the first end of the second arc-shaped limiting hole;

[0014] When the operating rod rotates counterclockwise, the first boss abuts against the second end of the first arc-shaped limiting hole, the counterclockwise wheel rotates counterclockwise with the operating rod, the clockwise wheel abuts against the second limiting groove, and the second boss presses the second elastic member;

[0015] When the operating rod rotates clockwise, the counterclockwise wheel abuts against the first limiting groove, the first boss presses the first elastic member, the second boss abuts against the second end of the second arc-shaped limiting hole, and the clockwise wheel rotates clockwise with the operating rod;

[0016] A handle is fixedly connected to the first end of the operating rod.

[0017] Optionally, two first bosses symmetric about the operating rod are provided on the front surface of the mounting structure. Correspondingly, two first arc-shaped limiting holes are provided;

[0018] And / or, two second bosses symmetric about the operating rod are provided on the back surface of the mounting structure. Correspondingly, two second arc-shaped limiting holes are provided.

[0019] Optionally, a first arc-shaped limiting platform is provided on the front surface of the fixed sleeve, and the first limiting groove is formed between the two ends of the first arc-shaped limiting platform;

[0020] And / or, a second arc-shaped limiting platform is provided on the back surface of the fixed sleeve, and the second limiting groove is formed between the two ends of the second arc-shaped limiting platform.

[0021] Optionally, the mounting structure is a disc.

[0022] Optionally, a mating connection portion is provided on the handle.

[0023] Optionally, the mating connection part is a groove.

[0024] Optionally, the handle includes a first rod-shaped part and a second rod-shaped part, the first rod-shaped part and the second rod-shaped part are symmetrically arranged with respect to the operating rod, and the grooves are provided on both the first rod-shaped part and the second rod-shaped part.

[0025] Optionally, a fluorescent coating is provided on the handle.

[0026] The present invention also provides a circuit breaker, including:

[0027] A base housing;

[0028] A tripping mechanism, including a trip plate;

[0029] A closing mechanism, including a closing plate;

[0030] The rotating operating device according to any one of the above solutions, the fixed sleeve is installed on the base housing of the circuit breaker, the first pressing plate at the second end of the operating rod is located above the trip plate, and the second pressing plate is located above the closing plate.

[0031] The technical solution of the present invention has the following advantages:

[0032] 1. The present invention provides a rotating operating device, including: an operating rod, adapted to be rotatably installed on the base housing of a circuit breaker, including a first end extending out of the base housing and a second end extending into the base housing, the second end of the operating rod is provided with a first pressing plate adapted to press against a trip plate and a second pressing plate adapted to press against a closing plate; a mounting structure, fixedly arranged on the operating rod, the front surface of the mounting structure is provided with a first boss, and the back surface of the mounting structure is provided with a second boss; a fixed sleeve, adapted to be fixedly installed on the base housing of the circuit breaker, the mounting structure is rotatably located in the fixed sleeve, the front surface of the fixed sleeve is provided with a first limiting groove, and the back surface of the fixed sleeve is provided with a second limiting groove; a counterclockwise wheel, rotatably arranged in the first limiting groove and sleeved on the operating rod, the operating rod is in clearance fit with the counterclockwise wheel, at least one first arc-shaped limiting hole is provided on the counterclockwise wheel, and the first boss extends into the first arc-shaped limiting hole; a first elastic member, arranged between the first boss and the first end of the first arc-shaped limiting hole; a clockwise wheel, rotatably arranged in the second limiting groove and sleeved on the operating rod, the operating rod is in clearance fit with the clockwise wheel, at least one second arc-shaped limiting hole is provided on the clockwise wheel, and the second boss extends into the second arc-shaped limiting hole; a second elastic member, arranged between the second boss and the first end of the second arc-shaped limiting hole; a handle, fixedly connected to the first end of the operating rod.

[0033] The rotary operating device provided by the present invention can achieve bidirectional rotation and automatic reset of the operating rod. When opening the circuit breaker, turn the handle to make the operating rod rotate counterclockwise, driving the first pressing plate to press against the opening plate. The rotation of the opening plate drives the internal transmission mechanism of the circuit breaker to perform the opening operation. While the operating rod rotates counterclockwise, the first boss abuts against the second end of the first arc-shaped limiting hole, that is, the end far from the first elastic member, causing the counterclockwise wheel to rotate counterclockwise with the operating rod. The clockwise wheel abuts against the second limiting groove, and the second boss presses against the second elastic member. Due to the action of the second elastic member, the handle will automatically reset after the opening operation is completed, facilitating the next closing operation. Similarly, when closing the circuit breaker, turn the handle to make the operating rod rotate clockwise, driving the second pressing plate to press against the closing plate. The rotation of the closing plate drives the internal transmission mechanism of the circuit breaker to perform the closing operation. While the operating rod rotates clockwise, the counterclockwise wheel abuts against the first limiting groove, the first boss presses against the first elastic member, and the second boss abuts against the second end of the second arc-shaped limiting hole, that is, the end far from the second elastic member, causing the clockwise wheel to rotate clockwise with the operating rod. Due to the action of the first elastic member, the handle will automatically reset after the closing operation is completed, facilitating the next opening operation.

[0034] In the present invention, an operator can use a long rod with a hook to turn the handle of the rotary operating device, driving the first pressing plate on the operating rod to press against the opening plate and the second pressing plate to press against the closing plate, thereby realizing the manual opening and closing operations of the circuit breaker. When the circuit breaker is installed on an outdoor high-altitude high-voltage power grid or a high-voltage electric pole, it can conveniently realize the opening and closing operations of the circuit breaker.

[0035] 2. The present invention provides a rotary operating device. Two first bosses symmetrical about the operating rod are provided on the front surface of the mounting structure. Correspondingly, two first arc-shaped limiting holes are provided; and / or, two second bosses symmetrical about the operating rod are provided on the back surface of the mounting structure. Correspondingly, two second arc-shaped limiting holes are provided.

[0036] In the present invention, two first bosses and / or two second bosses are symmetrically provided on the front surface and / or the back surface of the mounting structure, and the first arc-shaped limiting hole and the second arc-shaped limiting hole are correspondingly provided, so that the operating rod is evenly stressed during rotation, and at the same time, the acting forces of the first elastic member and the second elastic member are more uniform when the handle resets, improving the stability of the rotary operating device during operation.

[0037] 3. The present invention provides a rotary operating device. A first arc-shaped limiting platform is provided on the front surface of the fixed sleeve, and the first limiting groove is formed between the two ends of the first arc-shaped limiting platform; and / or, a second arc-shaped limiting platform is provided on the back surface of the fixed sleeve, and the second limiting groove is formed between the two ends of the second arc-shaped limiting platform.

[0038] The first limiting groove and / or the second limiting groove are formed by the first arc-shaped limiting platform and / or the second arc-shaped limiting platform. The first arc-shaped limiting platform and / or the second arc-shaped limiting platform adopt an arc-shaped structure, making the entire fixed rotation assembly structure more regular. At the same time, the counterclockwise wheel and / or the clockwise wheel can be better embedded into the first arc-shaped limiting platform and / or the second arc-shaped limiting platform, avoiding more parts of the counterclockwise wheel and / or the clockwise wheel being exposed outside and reducing the possibility of damage.

[0039] 4. The present invention provides a rotary operating device, and the mounting structure is a disc.

[0040] The mounting structure is set as a disc and is suitable for being nested in the fixed sleeve, making the structure of the rotary operating device more regular. At the same time, the strength of the mounting structure is also improved, reducing the possibility of damage during use.

[0041] 5. The present invention provides a rotary operating device, and a mating connection portion is provided on the handle.

[0042] A mating connection portion is provided on the handle and is suitable for cooperating with a long rod with a hook. By rotating the handle arranged at a high position, the closing and opening operations can be realized.

[0043] 6. The present invention provides a rotary operating device, and the mating connection portion is a groove.

[0044] A mating connection portion is provided on the handle and the mating connection portion is set as a groove. The groove is suitable for cooperating with a long rod with a hook. By rotating the handle arranged at a high position, the closing and opening operations can be realized.

[0045] 7. The present invention provides a rotary operating device, and the handle includes a first rod-shaped portion and a second rod-shaped portion. The first rod-shaped portion and the second rod-shaped portion are symmetrically arranged with respect to the operating rod, and the groove is provided on both the first rod-shaped portion and the second rod-shaped portion.

[0046] The first rod-shaped portion and the second rod-shaped portion are symmetrically arranged on both sides of the handle. The groove is provided on both the first rod-shaped portion and the second rod-shaped portion. When opening the circuit breaker, it is necessary to rotate the handle counterclockwise and realize it by pulling down the first rod-shaped portion; when closing the circuit breaker, it is necessary to rotate the handle clockwise and realize it by pulling down the second rod-shaped portion. The closing and opening operations are more convenient.

[0047] 8. The present invention provides a rotary operating device, and a fluorescent coating is provided on the handle.

[0048] A fluorescent coating is provided on the handle, and the handle can also be operated at night to realize the closing and opening operations of the circuit breaker.

[0049] 9. The present invention also provides a circuit breaker, comprising: a base housing; a tripping mechanism including a tripping plate; a closing mechanism including a closing plate; the rotary operating device according to any of the above advantages, the fixed sleeve is mounted on the base housing, the first pressing plate at the second end of the operating rod is located above the tripping plate, and the second pressing plate is located above the closing plate.

[0050] In the present invention, the rotary operating device is mounted on the base housing of the circuit breaker. An operator can use a long rod with a hook to pull down the handle of the rotary operating device, driving the first pressing plate at the second end of the operating rod to press against the tripping plate and the second pressing plate to press against the closing plate, thereby realizing the manual closing and tripping operations of the circuit breaker. When the circuit breaker is installed on an outdoor high-altitude high-voltage power grid or a high-voltage power pole, the closing and tripping operations of the circuit breaker can be conveniently realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] 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 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.

[0052] Figure 1 is a front structural schematic diagram of a rotary operating device provided by the present invention;

[0053] Figure 2 is a back structural schematic diagram of a rotary operating device provided by the present invention;

[0054] Figure 3 is a structural schematic diagram of an operating rod provided by the present invention;

[0055] Figure 4 is a front structural schematic diagram of a fixed rotation assembly provided by the present invention;

[0056] Figure 5 is a back structural schematic diagram of a fixed rotation assembly provided by the present invention;

[0057] Figure 6 is a front structural schematic diagram of a fixed sleeve provided by the present invention;

[0058] Figure 7 is a back structural schematic diagram of a fixed sleeve provided by the present invention;

[0059] Figure 8 is a structural schematic diagram of a counterclockwise wheel provided by the present invention;

[0060] Figure 9 is a structural schematic diagram of a clockwise wheel provided by the present invention;

[0061] Figure 10 This is a cross-sectional view of a rotary operating device provided by the present invention when the operating rod rotates counterclockwise, i.e., in the tripping state;

[0062] Figure 11 It is Figure 10 a schematic cross-sectional structure view taken along the A-A direction of a rotary operating device in

[0063] Figure 12 It is Figure 10 a schematic cross-sectional structure view taken along the B-B direction of a rotary operating device in

[0064] Figure 13 This is a cross-sectional view of a rotary operating device provided by the present invention when the operating rod rotates clockwise, i.e., in the closing state;

[0065] Figure 14 It is Figure 13 a schematic cross-sectional structure view taken along the A-A direction of a rotary operating device in

[0066] Figure 15 It is Figure 13 a schematic cross-sectional structure view taken along the B-B direction of a rotary operating device in

[0067] Figure 16 It is a schematic structural view of an internal transmission mechanism of a circuit breaker.

[0068] Explanation of reference numerals:

[0069] 1. Operating rod; 11. Mounting structure; 12. First boss; 13. Second boss; 2. Fixed sleeve; 21. First limiting groove; 22. Second limiting groove; 23. First arc-shaped limiting platform; 24. Second arc-shaped limiting platform; 3. Counterclockwise wheel; 31. First arc-shaped limiting hole; 32. First elastic member; 4. Clockwise wheel; 41. Second arc-shaped limiting hole; 42. Second elastic member; 5. Handle; 51. Groove; 52. First rod-shaped portion; 53. Second rod-shaped portion; 6. First pressing plate; 7. Second pressing plate; 8. Tripping plate; 81. Tripping half shaft; 9. Closing plate; 91. Closing half shaft. Detailed implementation manners

[0070] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0071] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0072] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled" 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 circumstances.

[0073] 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.

[0074] Embodiment 1

[0075] This embodiment provides a rotary operating device, as Figure 1 , Figure 2 , Figure 16 shown, including:

[0076] Operating rod 1, as Figure 3 shown, is adapted to be rotatably installed on the base housing of the circuit breaker, including a first end extending out of the base housing and a second end extending into the base housing. A first pressing plate 6 adapted to press against the opening plate 8 and a second pressing plate 7 adapted to press against the closing plate 9 are provided at the second end of the operating rod 1;

[0077] Specifically, the base housing is an outer shell that encloses the transmission structure of the circuit breaker. The first end of the operating rod 1 extends out of the base housing and is adapted to connect to the subsequent handle 5 for facilitating the operator to operate the handle 5; the second end of the operating rod 1 extends into the base housing and is adapted to connect to the first pressing plate 6 and the second pressing plate 7, so that when the operator operates the handle 5, the first pressing plate 6 and the second pressing plate 7 are driven to press against the opening plate 8 and the closing plate 9 to complete the opening and closing operations.

[0078] Mounting structure 11, fixedly provided on the operating rod 1.

[0079] First boss 12, provided on the front surface of the mounting structure 11 (the front surface in this embodiment is Figure 1The surface towards which the rotation operation device faces).

[0080] The second boss 13 is arranged on the back surface of the mounting structure 11 (the back surface in this embodiment is the Figure 2 The surface towards which the rotation operation device faces).

[0081] Specifically, the mounting structure 11 is used to provide positions for the installation of the first boss 12 and the second boss 13. It should be noted that: in this embodiment, the shape of the mounting structure 11 is not limited, and it can be disc-shaped, rod-shaped or other structures, aiming to meet the requirements for setting the first boss 12 and the second boss 13.

[0082] The fixing sleeve 2, as Figure 6 , Figure 7 shown, is suitable for being fixedly installed on the base housing of the circuit breaker, and the mounting structure 11 is rotatably located in the fixing sleeve 2.

[0083] The first limiting groove 21 is arranged on the front surface of the fixing sleeve 2.

[0084] The second limiting groove 22 is arranged on the back surface of the fixing sleeve 2.

[0085] Specifically, the first limiting groove 21 and the second limiting groove 22 play a limiting role for the subsequent counterclockwise wheel 3 and clockwise wheel 4. It should be noted that: in this embodiment, the manner of forming the first limiting groove 21 and the second limiting groove 22 is not limited, and a convex structure can be set at an appropriate position of the fixing sleeve 2, or a continuous limiting platform can be set, aiming to be able to play a limiting role for the counterclockwise wheel 3 and the clockwise wheel 4. Correspondingly, the opening degrees of the first limiting groove 21 and the second limiting groove 22 can be set according to the actual situation. The larger the opening degree, the larger the angle by which the operating rod 1 can rotate and reset.

[0086] The counterclockwise wheel 3, as Figure 8 shown, is rotatably arranged in the first limiting groove 21 and is sleeved on the operating rod 1. The operating rod 1 has a clearance fit with the counterclockwise wheel 3. The counterclockwise wheel 3 can rotate relative to the operating rod 1 within the fixing sleeve 2. At the same time, the counterclockwise wheel 3 is provided with a protruding portion, which cooperates with the first limiting groove 21 to limit the rotation angle of the counterclockwise wheel 3 and further limit the rotation angle of the operating rod 1.

[0087] The first arc-shaped limiting hole 31, at least one is provided on the counterclockwise wheel 3, the first boss 12 extends into the first arc-shaped limiting hole 31, the larger the opening degree of the first arc-shaped limiting hole 31, the larger the angle that the operating rod 1 can rotate and reset. It should be noted that, in order to improve the stability of the rotation and reset of the operating rod 1, more than one first arc-shaped limiting hole 31 can be provided in the counterclockwise wheel 3, but the opening degrees of each first arc-shaped limiting hole 31 need to be the same. Correspondingly, the more the first arc-shaped limiting holes 31 are provided, the smaller the opening degree of each first arc-shaped limiting hole 31, and the smaller the angle that the operating rod 1 can rotate and reset. The specific selection is made according to actual application requirements.

[0088] The first elastic member 32 is arranged between the first boss 12 and the first end of the first arc-shaped limiting hole 31. When the operating rod 1 rotates clockwise (the clockwise and counterclockwise rotations in this embodiment are both with reference to Figure 1 the orientation direction of the rotary operating device), the first elastic member 32 is compressed, providing power for the counterclockwise reset of the operating rod 1.

[0089] Specifically, the first end of the first arc-shaped limiting hole 31 is the end close to the first elastic member 32. Relatively, the second end of the first arc-shaped limiting hole 31 is the end far from the first elastic member 32.

[0090] The clockwise wheel 4, as Figure 9 shown, is rotatably arranged in the second limiting groove 22 and penetrates through the operating rod 1. The operating rod 1 has a clearance fit with the clockwise wheel 4. The clockwise wheel 4 can rotate relative to the operating rod 1 within the fixed sleeve 2. At the same time, the clockwise wheel 4 is provided with a protruding portion, which cooperates with the second limiting groove 22 to limit the rotation angle of the clockwise wheel 4, further limiting the rotation angle of the operating rod 1.

[0091] The second arc-shaped limiting hole 41, at least one is provided on the clockwise wheel 4, the second boss 13 extends into the second arc-shaped limiting hole 41, the larger the opening degree of the second arc-shaped limiting hole 41, the larger the angle that the operating rod 1 can rotate and reset. Similarly, it should be noted that, in order to improve the stability of the rotation and reset of the operating rod 1, more than one second arc-shaped limiting hole 41 can be provided in the clockwise wheel 4, but the opening degrees of each second arc-shaped limiting hole 41 need to be the same. Correspondingly, the more the second arc-shaped limiting holes 41 are provided, the smaller the opening degree of each second arc-shaped limiting hole 41, and the smaller the angle that the operating rod 1 can rotate and reset. The specific selection is made according to actual application requirements.

[0092] The second elastic member 42 is arranged between the second boss 13 and the first end of the second arc-shaped limiting hole 41; when the operating rod 1 rotates counterclockwise, the second elastic member 42 is compressed, providing power for the clockwise reset of the operating rod 1.

[0093] Specifically, by the same token, the first end of the second arc-shaped limiting hole 41 is the end close to the second elastic member 42, and correspondingly, the second end of the second arc-shaped limiting hole 41 is the end far from the second elastic member 42.

[0094] Furthermore, as Figure 4 , Figure 5 shown, the fixed sleeve 2, the counterclockwise wheel 3, the clockwise wheel 4, the first elastic member 32, and the second elastic member 42 together form a fixed rotation assembly. The opening degrees of the first limiting groove 21, the second limiting groove 22, the first arc-shaped limiting hole 31, and the second arc-shaped limiting hole 41 together determine the possible rotation and reset angles of the operating rod 1. Specifically, the opening degrees of the first limiting groove 21 and the second arc-shaped limiting hole 41 together determine the possible counterclockwise rotation and reset angles of the operating rod 1; the opening degrees of the second limiting groove 22 and the first arc-shaped limiting hole 31 together determine the possible clockwise rotation and reset angles of the operating rod 1.

[0095] The handle 5 is fixedly connected to the first end of the operating rod 1. The handle 5 is fixedly connected to the end of the operating rod 1 extending out of the base housing, which is convenient for the operator to operate the handle 5.

[0096] When an external force drives the handle 5 to rotate counterclockwise, the first boss 12 on the front of the mounting structure 11 abuts against the second end of the first arc-shaped limiting hole 31, that is, the end far from the first elastic member 32, so that the counterclockwise wheel 3 rotates counterclockwise with the operating rod 1 in the first limiting groove 21 until the protruding part of the counterclockwise wheel 3 abuts against the end of the first limiting groove 21. At the same time, the clockwise wheel 4 on the back of the mounting structure 11 abuts against the end of the second limiting groove 22, and the clockwise wheel 4 cannot rotate. Therefore, the second boss 13 will press against the second elastic member 42, and the second elastic member 42 contracts to provide energy for the reset of the handle 5, as Figure 10 , Figure 11 , Figure 12 shown in the schematic structural diagram after the handle 5 rotates counterclockwise by a certain angle. When the handle 5 is reset, the second elastic member 42 releases energy, pushes the second boss 13 to rotate back. Affected by the rotation of the second boss 13, the first boss 12 will also rotate back, pushing the first elastic member 32 and the counterclockwise wheel 3 to rotate back, and finally making the handle 5 return to the original position.

[0097] When an external force drives the handle 5 to rotate clockwise, the counterclockwise wheel 3 on the front of the mounting structure 11 abuts against the end of the first limiting groove 21, and the counterclockwise wheel 3 cannot rotate. Therefore, the first boss 12 will press against the first elastic member 32, and the first elastic member 32 contracts to provide energy for the reset of the handle 5. At the same time, the second boss 13 on the back of the mounting structure 11 abuts against the second end of the second arc-shaped limiting hole 41, that is, the end far from the second elastic member 42, so that the clockwise wheel 4 rotates clockwise with the operating rod 1 in the second limiting groove 22 until the protruding part of the clockwise wheel 4 abuts against the end of the second limiting groove 22, as Figure 13 , Figure 14, Figure 15 The figure shows a schematic structural diagram after the handle 5 rotates clockwise by a certain angle. When the handle 5 is reset, the first elastic member 32 releases energy to push the first boss 12 to rotate. Affected by the rotation of the first boss 12, the second boss 13 will also rotate, pushing the second elastic member 42 and the clockwise wheel 4 to rotate, and finally making the handle 5 return to its original position.

[0098] Furthermore, as shown in Figure 16 For the internal transmission mechanism of the circuit breaker, the closing and opening operations of the circuit breaker are carried out by installing a closing and opening button assembly on the circuit breaker panel, and using the button assembly to drive the electro-hydraulic push rod to push the closing plate 9 and the opening plate 8 respectively arranged on the closing half shaft 91 and the opening half shaft 81 of the operating mechanism to complete the closing and opening operations of the circuit breaker, so as to connect the current in the circuit when closing and cut off the current in the circuit when opening. When the circuit breaker is installed on the outdoor high-altitude high-voltage power grid or high-voltage electric pole, the above method of using the closing and opening button assembly to realize the closing and opening operations of the circuit breaker is not very applicable.

[0099] Therefore, this embodiment provides a rotary operating device. When opening, rotate the handle 5 to make the operating rod 1 rotate counterclockwise, drive the first pressing plate 6 to press against the opening plate 8, and the rotation of the opening plate 8 drives the internal transmission mechanism of the circuit breaker to realize the opening operation. And due to the action of the second elastic member 42, after the opening is completed, the handle 5 will automatically reset, which is convenient for the next closing operation; when closing, rotate the handle 5 to make the operating rod 1 rotate clockwise, drive the second pressing plate 7 to press against the closing plate 9, and the rotation of the closing plate 9 drives the internal transmission mechanism of the circuit breaker to realize the closing operation. And due to the action of the first elastic member 32, after the closing is completed, the handle 5 will automatically reset, which is convenient for the next opening operation.

[0100] Furthermore, the operator can use a long rod with a hook to rotate the handle 5 of the rotary operating device, drive the first pressing plate 6 on the operating rod 1 to press against the opening plate 8 and the second pressing plate 7 to press against the closing plate 9, so as to realize the closing and opening operations of the circuit breaker. When the circuit breaker is installed on the outdoor high-altitude high-voltage power grid or high-voltage electric pole, it can conveniently realize the closing and opening operations of the circuit breaker.

[0101] On the basis of the above implementation manner, as a further limited implementation manner, as shown in Figure 1 , Figure 2 , Figure 4 , Figure 5 There are two first bosses 12 symmetric about the operating rod 1 on the front of the mounting structure 11. Correspondingly, there are two first arc-shaped limiting holes 31; and / or, there are two second bosses 13 symmetric about the operating rod 1 on the back of the mounting structure 11. Correspondingly, there are two second arc-shaped limiting holes 41.

[0102] Specifically, two symmetrical first bosses 12 and two second bosses 13 are provided on the front and back of the mounting structure 11 simultaneously, or two symmetrical first bosses 12 or two second bosses 13 are provided on one of the front and back of the mounting structure 11, and only one is provided on the other side, and the first arc-shaped limit holes 31, the second arc-shaped limit holes 41, the first elastic member 32 and the second elastic member 42 are correspondingly provided, so that the force is evenly distributed when the operating rod 1 rotates, and at the same time, when the handle 5 returns to its original position, the acting forces of the first elastic member 32 and the second elastic member 42 during recovery are more uniform, improving the stability of the rotary operating device during operation.

[0103] On the basis of the above-mentioned embodiment, as a further limited embodiment, as Figure 6 , Figure 7 shown, a first arc-shaped limit platform 23 is provided on the front of the fixed sleeve 2, and a first limit groove 21 is formed between the two ends of the first arc-shaped limit platform 23; and / or, a second arc-shaped limit platform 24 is provided on the back of the fixed sleeve 2, and a second limit groove 22 is formed between the two ends of the second arc-shaped limit platform 24.

[0104] Specifically, the first arc-shaped limit platform 23 and the second arc-shaped limit platform 24 are provided on the front and back of the fixed sleeve 2 simultaneously, or the first arc-shaped limit platform 23 or the second arc-shaped limit platform 24 is provided on one of the front and back of the fixed sleeve 2, and not provided on the other side, so that the structure of the entire fixed rotation assembly is more regular, and at the same time, the counterclockwise wheel 3 or the clockwise wheel 4 can be better embedded into the first arc-shaped limit platform 23 or the second arc-shaped limit platform 24, avoiding more parts of the counterclockwise wheel 3 or the clockwise wheel 4 being exposed outside, and reducing the possibility of damage.

[0105] On the basis of the above-mentioned embodiment, as a further limited embodiment, as Figure 3 shown, the mounting structure 11 is a disc.

[0106] Specifically, the mounting structure 11 is set as a disc and is suitable for being nested in the fixed sleeve 2, so that the structure of the rotary operating device is more regular. Compared with setting the mounting structure 11 as a rod-shaped structure and providing the first boss 12 and the second boss 13 on the rod-shaped structure, setting the mounting structure 11 as a disc improves the strength of the mounting structure 11 and reduces the possibility of damage during use.

[0107] On the basis of the above-mentioned embodiment, as a further limited embodiment, as Figure 1 shown, the handle 5 is provided with a mating connection portion, which is suitable for mating with a long rod with a hook, and rotates the handle 5 arranged at a high place to realize the closing and opening operation.

[0108] On the basis of the above-mentioned embodiment, as a further limited embodiment, as Figure 1As shown, the mating connection part is a groove 51, and the groove 51 is adapted to cooperate with a long rod with a hook, and the handle 5 rotatably arranged at a high position is used to realize the closing and opening operations.

[0109] On the basis of the above embodiment, as a further limited embodiment, as Figure 1 shown, the handle 5 includes a first rod-shaped part 52 and a second rod-shaped part 53. The first rod-shaped part 52 and the second rod-shaped part 53 are symmetrically arranged with respect to the operating rod 1, and the first rod-shaped part 52 and the second rod-shaped part 53 are both provided with grooves 51.

[0110] Specifically, since the groove 51 needs to be adapted to cooperate with a long rod with a hook to pull down any end of the handle 5, the depression direction of the groove 51 is appropriately offset towards the end of the handle 5, so that the long rod with a hook can hook the groove 51 and pull it down. When opening the circuit breaker, the handle 5 needs to be rotated counterclockwise, which is achieved by pulling down the first rod-shaped part 52; when closing the circuit breaker, the handle 5 needs to be rotated clockwise, which is achieved by pulling down the second rod-shaped part 53. The closing and opening operations are more convenient.

[0111] On the basis of the above embodiment, as a further limited embodiment, as Figure 1 shown, a fluorescent coating is provided on the handle 5, and the handle 5 can also be operated at night to realize the closing and opening operations of the circuit breaker.

[0112] Embodiment 2

[0113] The present invention also provides a circuit breaker, as Figure 16 shown, including:

[0114] A base housing, which is an outer shell that wraps the transmission structure of the circuit breaker.

[0115] An opening mechanism, including an opening plate 8, and the opening plate 8 rotates to drive the opening half shaft 81 to rotate, triggering the transmission structure of the circuit breaker to realize the opening operation.

[0116] A closing mechanism, including a closing plate 9, and the closing plate 9 rotates to drive the closing half shaft 91 to rotate, triggering the transmission structure of the circuit breaker to realize the closing operation.

[0117] The rotary operating device of Embodiment 1, the fixed sleeve 2 is installed on the base housing, and the first pressing plate 6 at the second end of the operating rod 1 is located above the opening plate 8, and the second pressing plate 7 is located above the closing plate 9.

[0118] As Figure 16 shown, it is the internal transmission mechanism of the circuit breaker. The operation mode of the circuit breaker transmission mechanism during closing and opening operations is as follows:

[0119] During the closing operation, the closing half shaft 91 is driven to rotate by an external force. The closing lock catch plate rotates under the biasing force of the closing torsion spring until it abuts against the output crank arm. The cam mechanism rotates to the non-energy storage position under the energy release of the energy storage spring and is held in position by a limit. At the same time, the five-link structure drives the part of the output crank arm connected to the circuit breaker to move to complete the closing operation.

[0120] After closing in place, the energy storage mechanism is activated, and the cam mechanism rotates back to the energy storage position.

[0121] During the opening operation, the opening half shaft 81 is driven to rotate by an external force. The opening lock catch plate rotates in the direction opposite to the closing direction under the pulling force of the opening lock catch plate tension spring until the part of the five-link structure connected to the output crank arm abuts against the cam mechanism in the energy storage position to complete the opening operation.

[0122] Furthermore, the rotary operating device is installed on the base housing of the circuit breaker, and the first end of the operating rod 1 extends outside the base housing. The operator can use a long rod with a hook to pull down the handle 5 of the rotary operating device, driving the first pressing plate 6 at the second end of the operating rod 1 to press against the opening plate 8 and the second pressing plate 7 to press against the closing plate 9. The opening plate 8 and the closing plate 9 drive the opening half shaft 81 and the closing half shaft 91 to rotate respectively, that is, driven by an external force, triggering the operation of the transmission mechanism inside the circuit breaker, so as to realize the opening and closing operations of the circuit breaker. When the circuit breaker is set on the outdoor high-altitude high-voltage power grid or high-voltage utility pole, the opening and closing operations of the circuit breaker can be conveniently realized.

[0123] Obviously, the above embodiments are only examples given for clear illustration and are not 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 list all implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A rotary operating device, characterized in that, it includes: An operating rod (1), which is rotatably installed on the base housing of the circuit breaker, includes a first end extending out of the base housing and a second end extending into the base housing. A first pressing plate (6) adapted to press against the tripping plate (8) and a second pressing plate (7) adapted to press against the closing plate (9) are provided at the second end of the operating rod (1); An installation structure (11), in a rod shape, fixedly arranged on the operating rod (1). A first boss (12) is provided on the front surface of the installation structure (11), and a second boss (13) is provided on the back surface of the installation structure (11); A fixed sleeve (2), adapted to be fixedly installed on the base housing of the circuit breaker. The installation structure (11) is rotatably located in the fixed sleeve (2). A first limiting groove (21) is provided on the front surface of the fixed sleeve (2), and a second limiting groove (22) is provided on the back surface of the fixed sleeve (2); A counterclockwise wheel (3), rotatably arranged in the first limiting groove (21) and sleeved on the operating rod (1). There is a clearance fit between the operating rod (1) and the counterclockwise wheel (3). At least one first arc-shaped limiting hole (31) is provided on the counterclockwise wheel (3), and the first boss (12) extends into the first arc-shaped limiting hole (31); A first elastic member (32), arranged between the first boss (12) and the first end of the first arc-shaped limiting hole (31); A clockwise wheel (4), rotatably arranged in the second limiting groove (22) and sleeved on the operating rod (1). There is a clearance fit between the operating rod (1) and the clockwise wheel (4). At least one second arc-shaped limiting hole (41) is provided on the clockwise wheel (4), and the second boss (13) extends into the second arc-shaped limiting hole (41); A second elastic member (42), arranged between the second boss (13) and the first end of the second arc-shaped limiting hole (41); When the operating rod (1) rotates counterclockwise, the first boss (12) abuts against the second end of the first arc-shaped limiting hole (31), causing the counterclockwise wheel (3) to rotate counterclockwise with the operating rod (1). The clockwise wheel (4) abuts against the second limiting groove (22), and the second boss (13) presses against the second elastic member (42); When the operating rod (1) rotates clockwise, the counterclockwise wheel (3) abuts against the first limiting groove (21), the first boss (12) presses against the first elastic member (32), and the second boss (13) abuts against the second end of the second arc-shaped limiting hole (41), causing the clockwise wheel (4) to rotate clockwise with the operating rod (1); A handle (5), fixedly connected to the first end of the operating rod (1).

2. The rotary operating device according to claim 1, characterized in that, Two first bosses (12) symmetrical about the operating rod (1) are provided on the front surface of the installation structure (11). Correspondingly, two first arc-shaped limiting holes (31) are provided; And / or, two second bosses (13) symmetrical about the operating rod (1) are provided on the back surface of the mounting structure (11). Correspondingly, two second arc-shaped limiting holes (41) are provided.

3. The rotary operating device according to claim 1, characterized in that a first arc-shaped limiting platform (23) is provided on the front surface of the fixed sleeve (2), and a first limiting groove (21) is formed between two ends of the first arc-shaped limiting platform (23); And / or, a second arc-shaped limiting platform (24) is provided on the back surface of the fixed sleeve (2), and a second limiting groove (22) is formed between two ends of the second arc-shaped limiting platform (24).

4. The rotary operating device according to any one of claims 1-3, characterized in that a fitting connection part is provided on the handle (5).

5. The rotary operating device according to claim 4, characterized in that the fitting connection part is a groove (51).

6. The rotary operating device according to claim 5, characterized in that the handle (5) includes a first rod-shaped part (52) and a second rod-shaped part (53), the first rod-shaped part (52) and the second rod-shaped part (53) are symmetrically arranged about the operating rod (1), and the groove (51) is provided on both the first rod-shaped part (52) and the second rod-shaped part (53).

7. The rotary operating device according to any one of claims 1-3, characterized in that a fluorescent coating is provided on the handle (5).

8. A circuit breaker, characterized in that it includes: a base housing; a tripping mechanism including a tripping plate (8); a closing mechanism including a closing plate (9); the rotary operating device according to any one of claims 1-7, the fixed sleeve (2) is installed on the base housing, and the first pressing plate (6) at the second end of the operating rod (1) is located above the tripping plate (8), and the second pressing plate (7) is located above the closing plate (9).

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