Isolating switch operating mechanism with optimized volume

Abstract

The invention relates to the technical field of circuit breakers, in particular to a size-optimized disconnecting switch operating mechanism which comprises a connecting rod system, the connecting rod system comprises a lower side plate and an upper side plate which are symmetrically arranged, the lower side plate and the upper side plate are connected through a positioning system, and a rocker arm is arranged between the lower side plate and the upper side plate. The rocker arm is sequentially connected with a first connecting rod, a second connecting rod and a third connecting rod, an output system is installed on the third connecting rod, an input system is installed on the outer side of the connecting rod system, and the input system enables the main frame rod to rotate through external torque to drive the main spring to provide mechanism power. According to the isolating switch operating mechanism with the optimized volume, by adopting the lower side plate and the upper side plate which are symmetrically arranged and a simple connecting rod system, the volume optimization of the operating mechanism is successfully realized. The design not only reduces the occupied space of the equipment, but also enables the operating mechanism to be more compact, and is convenient to install and use in occasions with limited space.

Description

Technical Field

[0001] The invention relates to the technical field of circuit breakers, and in particular to an isolating switch operating mechanism with optimized volume. Background Art

[0002] In the power system, isolating switches are important control and protection equipment and are widely used in substations and power plants of various voltage levels. The main function of isolating switches is to reliably isolate the live parts from the maintenance parts during equipment maintenance to ensure the safety of the staff and the normal maintenance of the equipment. The operating mechanism of the isolating switch is the key component to achieve this function.

[0003] Traditional disconnector operating mechanisms often have problems such as large size, complex structure, and inconvenient operation. These problems not only increase the manufacturing cost and maintenance difficulty of the equipment, but also limit the wide application of disconnectors in compact substations and smart grids. Especially in occasions with high space requirements, such as urban power grids and offshore wind power platforms, the volume problem of traditional operating mechanisms is particularly prominent.

[0004] In addition, the traditional operating mechanism also has deficiencies in power transmission and mechanical efficiency. The complex linkage mechanism and numerous transmission parts lead to large power loss and low operating efficiency. At the same time, due to the large number of parts, the possibility of failure is increased, affecting the reliability and stability of the disconnector. Summary of the invention

[0005] The object of the present invention is to provide an isolating switch operating mechanism with optimized volume, so as to solve the problems of the conventional isolating switch operating mechanism mentioned in the above background technology, such as large volume, complex structure, and inconvenient operation.

[0006] To achieve the above-mentioned objectives, the present invention provides an isolating switch operating mechanism with optimized volume, including a connecting rod system, wherein the connecting rod system includes a symmetrically arranged lower side plate and an upper side plate, wherein the lower side plate and the upper side plate are connected via a positioning system, a rocker arm is arranged between the lower side plate and the upper side plate, wherein the rocker arm is sequentially connected to a first connecting rod, a second connecting rod and a third connecting rod, wherein an output system is installed on the third connecting rod, and an input system is installed on the outer side of the connecting rod system, wherein the input system rotates the main frame rod through an external torque, thereby driving the main spring to provide mechanism power.

[0007] As a preferred solution of the present invention, the upper part of the rocker arm is connected to the upper end of the first connecting rod through a pin shaft, the lower part of the rocker arm is rotatably connected through the lower side plate and the upper side plate of the pin shaft, the bottom end of the rocker arm is connected to the auxiliary spring, the bottom end of the first connecting rod is rotatably connected to the upper end of the second connecting rod through a pin shaft, and the bottom end of the second connecting rod is rotatably connected to one end of the third connecting rod through a pin shaft.

[0008] As a preferred embodiment of the present invention, the input system is a plate-like structure, and is provided with a transmission rod, an auxiliary positioning member and a lateral positioning member. The surface of the input system is provided with a first movable transmission hole, a second movable transmission hole, and an auxiliary positioning slot hole. The first transmission hole is connected to the main frame rod through the auxiliary positioning member, and the second movable transmission hole is connected to the transmission rod.

[0009] As a preferred embodiment of the present invention, the output system is a rod-shaped structure, with a first transmission plane and a second transmission plane respectively provided on both sides, an auxiliary positioning circle installed at one end, an input positioning groove provided at the outer end of the auxiliary positioning circle, and a lower positioning groove and an upper positioning groove provided on the surface of the output system.

[0010] As a preferred solution of the present invention, a positioning hole is provided on the side of the third connecting rod, the output system passes through the positioning hole, and is positioned with the positioning hole through the first transmission plane and the second transmission plane, and the end of the output system passes through the auxiliary positioning slot and is positioned through the cooperation of the lateral positioning piece and the input positioning slot.

[0011] As a preferred solution of the present invention, the lower positioning groove is located on the outer side of the lower side plate, the upper positioning groove is located on the outer side of the upper side plate, the input positioning groove is located on the outer side of the input system, and retaining rings are installed in the lower positioning groove and the upper positioning groove.

[0012] As a preferred embodiment of the present invention, the connecting rod system performs unlocking and releasing operations through an unlocking and releasing system, and the releasing system includes a locking member and an unlocking member, and the two ends of the unlocking member are rotatably connected to the lower side plate and the upper side plate respectively, and a locking mouth is provided on the upper part of the locking member, and the locking mouth is snap-fitted with the upper end of the rocker arm, and the outer wall of the releasing member abuts against the bottom of the locking member, and the unlocking member is unlocked by flipping over to disengage from the bottom of the locking member.

[0013] As a preferred embodiment of the present invention, the locking piece is fixed between the lower side plate and the upper side plate through a positioning system. The positioning system is a rod-shaped structure with a first extending end and a second extending end respectively provided at both ends. The first extending end and the second extending end respectively extend from the outer walls of the lower side plate and the upper side plate.

[0014] As a preferred embodiment of the present invention, the bottom end of the main spring is connected to the pin of the third connecting rod, and the bottom end of the auxiliary spring is connected to the bottom ends of the lower and upper side plates.

[0015] As a preferred solution of the present invention, the second movable transmission hole is adapted to the cross-sectional structure of , and both are hexagonal structures.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the volume-optimized disconnector operating mechanism, the present invention successfully optimizes the volume of the operating mechanism by adopting symmetrically arranged lower and upper side plates and a streamlined connecting rod system. This design not only reduces the space occupied by the equipment, but also makes the operating mechanism more compact, which is convenient for installation and use in occasions with limited space.

[0018] 2. In the optimized volume isolating switch operating mechanism, the structure of the operating mechanism is simplified through the clever connecting rod connection method and the design of the input and output system. The fewer parts and simple connection method not only reduce the manufacturing cost, but also reduce the difficulty of maintenance and the possibility of failure.

[0019] 3. In the optimized volume disconnector operating mechanism, the external torque provided by the input system drives the main frame rod to rotate, which in turn drives the main spring to provide the mechanism power. This design achieves efficient power transmission, reduces power loss, and improves operating efficiency. At the same time, the introduction of the auxiliary spring further enhances the stability and reliability of power transmission.

[0020] 4. In the optimized volume disconnector operating mechanism, the connecting rod system, input system, output system, and release and tripping system are carefully designed to ensure the reliability and stability of the operating mechanism. In particular, the setting of the release and tripping system enables the operating mechanism to quickly and accurately complete the release and tripping operations when necessary, improving the response speed and safety of the equipment.

[0021] 5. In the optimized volume of the disconnector operating mechanism, the transmission plane and positioning slots on the output system, as well as the movable transmission holes and auxiliary positioning slots on the input system, provide convenience for the positioning and installation of the operating mechanism. These designs not only improve the installation accuracy, but also enable the operating mechanism to maintain a stable working state during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is one of the overall structural schematic diagrams of the present invention;

[0023] Figure 2 This is the second schematic diagram of the internal structure of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the connecting rod system in the present invention;

[0025] Figure 4 It is a partial structural schematic diagram of the connecting rod system in the present invention;

[0026] Figure 5 It is a structural schematic diagram of the input system in the present invention;

[0027] Figure 6It is a structural schematic diagram of the output system in the present invention;

[0028] Figure 7 It is a structural schematic diagram of the release system of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the positioning system in the present invention;

[0030] The meaning of each number in the figure is:

[0031] 1. Connecting rod system; 11. Lower side plate; 12. Upper side plate; 13. Rocker arm; 14. First connecting rod; 15. Second connecting rod; 16. Third connecting rod; 2. Input system; 201. Transmission rod; 202. Auxiliary positioning member; 2021. First movable transmission hole; 2022. Second movable transmission hole; 2023. Auxiliary positioning slot; 203. Lateral positioning member; 3. Main spring; 4. Auxiliary spring; 5. Output system; 51. First transmission plane; 52. Second transmission plane; 53. Lower positioning slot; 54. Upper positioning slot; 55. Input positioning slot; 56. Auxiliary positioning circle; 6. Unfastening and release system; 601. Locking member; 602. Unfastening member; 7. Positioning system; 701. First extension end; 702. Second extension end; 8. Main frame rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The present invention provides an isolating switch operating mechanism with optimized volume, such as Figure 1-Figure 8 As shown, the connecting rod system 1 includes a symmetrically arranged lower side plate 11 and an upper side plate 12, the lower side plate 11 and the upper side plate 12 are connected by a positioning system 7, a rocker arm 13 is arranged between the lower side plate 11 and the upper side plate 12, the rocker arm 13 is sequentially connected to a first connecting rod 14, a second connecting rod 15 and a third connecting rod 16, an output system 5 is installed on the third connecting rod 16, an input system 2 is installed on the outside of the connecting rod system 1, the input system 2 rotates the main frame rod 8 through an external torque, and then drives the main spring 3 to provide the mechanism power. The present invention successfully achieves the volume optimization of the disconnector operating mechanism by adopting a symmetrically arranged lower side plate 11 and an upper side plate 12, and a streamlined connecting rod system 1. This design makes the entire mechanism more compact and effectively reduces the occupied space of the equipment.

[0034] The lower side plate 11 and the upper side plate 12 are firmly connected via the positioning system 7, which ensures the structural stability and symmetry of the connecting rod system 1. This stable connection also provides reliable support for subsequent power transmission.

[0035] As the core component of the connecting rod system 1, the rocker arm 13 is sequentially connected with the first connecting rod 14, the second connecting rod 15 and the third connecting rod 16 through a precise connection method, forming a set of efficient and concise transmission mechanism. This design not only simplifies the structure of the mechanism, but also improves the efficiency and accuracy of the transmission.

[0036] An input system 2 is installed outside the connecting rod system 1. The input system 2 rotates the main frame rod 8 by inputting external torque. This rotation action in turn drives the compression or release of the main spring 3, providing a stable and reliable power source for the entire operating mechanism. This power supply method is not only efficient, but also easy to control and adjust.

[0037] The output system 5 is installed on the third connecting rod 16, which is used to output the power transmitted by the connecting rod system 1 to other parts of the disconnector. This integrated design makes the entire operating mechanism more compact and also facilitates connection and coordination with other components.

[0038] In this embodiment, the upper part of the rocker arm 13 is connected to the upper end of the first connecting rod 14 through a pin, the lower part of the rocker arm 13 is rotatably connected through the lower side plate 11 and the upper side plate 12 of the pin, the bottom end of the rocker arm 13 is connected to the auxiliary spring 4, the bottom end of the first connecting rod 14 is rotatably connected to the upper end of the second connecting rod 15 through a pin, and the bottom end of the second connecting rod 15 is rotatably connected to one end of the third connecting rod 16 through a pin. This design enables the rocker arm to stably transmit power, and provides additional elastic support through the auxiliary spring 4, thereby enhancing the stability and response speed of the mechanism.

[0039] Specifically, the input system 2 is a plate-like structure, and a transmission rod 201, an auxiliary positioning member 202, and a lateral positioning member 203 are provided on the input system 2. A first movable transmission hole 2021, a second movable transmission hole 2022, and an auxiliary positioning slot 2023 are provided on the surface of the input system 2. The first transmission hole 2021 is connected to the main frame rod 8 through the auxiliary positioning member 202, and the second movable transmission hole 2022 is connected to the transmission rod 201. This design enables the input system to accurately receive external torque, and accurately transmit power to the main frame rod 8 and other related components through the transmission rod and the positioning member, thereby improving the accuracy and efficiency of transmission.

[0040] Furthermore, the output system 5 is a rod-shaped structure, with a first transmission plane 51 and a second transmission plane 52 respectively provided on both sides, an auxiliary positioning circle 56 installed at one end, an input positioning groove 55 provided at the outer end of the auxiliary positioning circle 56, and a lower positioning groove 53 and an upper positioning groove 54 provided on the surface of the output system 5. This design enables the output system to be easily connected and positioned with other components, while ensuring the stability and reliability of power transmission.

[0041] Furthermore, a positioning hole is provided on the side of the third connecting rod 16, and the output system 5 passes through the positioning hole and is positioned with the positioning hole through the first transmission plane 51 and the second transmission plane 52, and the end of the output system 5 passes through the auxiliary positioning slot 2023 and is positioned through the cooperation of the lateral positioning member 203 and the input positioning slot 55. This design ensures accurate connection and stable transmission between the output system and the third connecting rod.

[0042] Furthermore, the lower positioning groove 53 is located on the outer side of the lower side plate 11, the upper positioning groove 54 is located on the outer side of the upper side plate 12, and the input positioning groove 55 is located on the outer side of the input system 2, and snap rings are installed in the lower positioning groove 53 and the upper positioning groove 54. The stability and positioning accuracy of the output system are further enhanced.

[0043] Furthermore, the connecting rod system 1 performs the unfastening and unfastening operation through the unfastening and unfastening system 6, and the unfastening system 6 includes a lock 601 and an unfastening member 602. The two ends of the unfastening member 602 are respectively rotatably connected with the lower side plate 11 and the upper side plate 12. The upper part of the lock 601 is provided with a lock hole, and the lock hole is engaged with the upper end of the rocker arm 13. The outer wall of the unfastening member 602 abuts against the bottom of the lock 601. The unfastening member 602 is unfastened by turning over to disengage from the bottom of the lock 601. This design enables the operating mechanism to conveniently realize the unlocking and unfastening operations, and improves the flexibility and reliability of the mechanism.

[0044] Furthermore, the lock member 601 is fixed between the lower side plate 11 and the upper side plate 12 through the positioning system 7. The positioning system 7 is a rod-shaped structure, and the first and second extension ends 701 and 702 are respectively provided at both ends. The first and second extension ends 701 and 702 extend from the outer walls of the lower side plate 11 and the upper side plate 12 respectively. This design ensures the stable installation and precise positioning of the lock member, and provides reliable support for the unlocking and disengaging operations.

[0045] Furthermore, the bottom end of the main spring 3 is connected to the pin of the third connecting rod 16, and the bottom end of the auxiliary spring 4 is connected to the bottom ends of the lower side 11 and the upper side plate 12. This design enables the main spring and the auxiliary spring to jointly provide power support for the operating mechanism, thereby enhancing the energy storage capacity and response speed of the mechanism.

[0046] Furthermore, the cross-sectional structure of the second movable transmission hole 2022 is adapted to that of 201, and both are hexagonal structures. This design enables the transmission rod to be stably inserted into the second movable transmission hole, and achieves accurate transmission and positioning through the hexagonal cross-sectional structure, thereby improving the stability and reliability of the transmission.

[0047] When the volume-optimized isolating switch operating mechanism of the present invention is used, first, the external torque is input through the transmission rod 201 of the input system 2, and the transmission rod 201 is inserted into the second active transmission hole 2022. Since the cross-sectional structures of the two are compatible (both are hexagonal), the stability and accuracy of the transmission are ensured. The rotation of the transmission rod 201 drives the input system 2 to rotate as a whole, and then the main frame rod 8 is rotated through the first active transmission hole 2021 and the auxiliary positioning member 202. The rotation of the main frame rod 8 compresses or releases the main spring 3, and the bottom end of the main spring 3 is connected to the pin of the third connecting rod 16, so the energy stored or released by the main spring 3 will be directly transmitted to the connecting rod system 1.

[0048] The rocker arm 13 is the core component of the connecting rod system 1. Its upper part is connected to the upper end of the first connecting rod 14 through a pin, and its lower part is rotatably connected to the lower side plate 11 and the upper side plate 12 through a pin. When the main spring 3 releases energy, it transmits power to the rocker arm 13 through the third connecting rod 16, the second connecting rod 15 and the first connecting rod 14 in sequence. The rocker arm 13 rotates stably under the elastic support of the auxiliary spring 4. This design of the connecting rod system 1 forms a set of efficient and simple transmission mechanisms, ensuring stable transmission and efficient conversion of power.

[0049] The output system 5 is mounted on the third connecting rod 16. The output system 5 is a rod-shaped structure, and the first transmission plane 51 and the second transmission plane 52 are respectively provided on both sides. The output system 5 passes through the positioning hole on the side of the third connecting rod 16, and is positioned with the positioning hole through the first transmission plane 51 and the second transmission plane 52, thereby ensuring the precise connection between the output system and the third connecting rod. The end of the output system 5 passes through the auxiliary positioning slot 2023, and is further positioned through the cooperation of the lateral positioning member 203 and the input positioning slot 55, thereby enhancing the stability of the output system.

[0050] When the connecting rod system 1 transmits power to the output system 5, the output system 5 is positioned and matched with the lower side plate 11 and the upper side plate 12 through the lower positioning groove 53 and the upper positioning groove 54 (in which the snap ring is installed) on its surface, ensuring that the power is stably output to other parts of the disconnector.

[0051] The connecting rod system 1 performs the unfastening and unfastening operations through the unfastening and unfastening system 6. The lock member 601 is fixed between the lower side plate 11 and the upper side plate 12 through the positioning system 7, and a lock port is provided on its upper part to engage with the upper end of the rocker arm 13. The two ends of the unfastening member 602 are rotatably connected to the lower side plate 11 and the upper side plate 12 respectively, and its outer wall abuts against the bottom of the lock member 601. When unlocking is required, the unfastening member 602 is flipped to be separated from the bottom of the lock member 601, thereby realizing the unlocking and unfastening operations. This design enables the operating mechanism to conveniently realize the unlocking and unfastening operations, thereby improving the flexibility and reliability of the mechanism.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A volume-optimized isolating switch operating mechanism, comprising a connecting rod system (1), characterized in that: The connecting rod system (1) comprises a symmetrically arranged lower side plate (11) and an upper side plate (12), wherein the lower side plate (11) and the upper side plate (12) are connected via a positioning system (7), a rocker arm (13) is arranged between the lower side plate (11) and the upper side plate (12), wherein the rocker arm (13) is sequentially connected to a first connecting rod (14), a second connecting rod (15) and a third connecting rod (16), wherein an output system (5) is installed on the third connecting rod (16), and an input system (2) is installed on the outer side of the connecting rod system (1), wherein the input system (2) causes the main frame rod (8) to rotate through an external torque, thereby driving a main spring (3) to provide mechanism power.

2. The volume-optimized isolating switch operating mechanism according to claim 1, characterized in that: The upper part of the rocker arm (13) is connected to the upper end of the first connecting rod (14) through a pin shaft, the lower part of the rocker arm (13) is rotatably connected through a lower side plate (11) and an upper side plate (12) of the pin shaft, the bottom end of the rocker arm (13) is connected to an auxiliary spring (4), the bottom end of the first connecting rod (14) is rotatably connected to the upper end of the second connecting rod (15) through a pin shaft, and the bottom end of the second connecting rod (15) is rotatably connected to one end of a third connecting rod (16) through a pin shaft.

3. The volume-optimized isolating switch operating mechanism according to claim 2, characterized in that: The input system (2) is a plate-shaped structure, and is provided with a transmission rod (201), an auxiliary positioning member (202) and a lateral positioning member (203). The surface of the input system (2) is provided with a first movable transmission hole (2021), a second movable transmission hole (2022) and an auxiliary positioning slot hole (2023); the first transmission hole (2021) is connected to the main frame rod (8) through the auxiliary positioning member (202), and the second movable transmission hole (2022) is connected to the transmission rod (201).

4. The volume-optimized isolating switch operating mechanism according to claim 3, characterized in that: The output system (5) is a rod-shaped structure, with a first transmission plane (51) and a second transmission plane (52) respectively provided on both sides, an auxiliary positioning circle (56) installed at one end, an input positioning groove (55) provided at the outer end of the auxiliary positioning circle (56), and a lower positioning groove (53) and an upper positioning groove (54) provided on the surface of the output system (5).

5. The volume-optimized isolating switch operating mechanism according to claim 4, characterized in that: A positioning hole is provided on the side of the third connecting rod (16), and the output system (5) passes through the positioning hole and is positioned with the positioning hole through the first transmission plane (51) and the second transmission plane (52). The end of the output system (5) passes through the auxiliary positioning slot (2023) and is positioned through the cooperation of the lateral positioning piece (203) and the input positioning slot (55).

6. The volume-optimized isolating switch operating mechanism according to claim 5, characterized in that: The lower positioning groove (53) is located on the outer side of the lower side plate (11), the upper positioning groove (54) is located on the outer side of the upper side plate (12), the input positioning groove (55) is located on the outer side of the input system (2), and snap rings are installed in both the lower positioning groove (53) and the upper positioning groove (54).

7. The volume-optimized isolating switch operating mechanism according to claim 1, characterized in that: The connecting rod system (1) performs unlocking and releasing operations through the unlocking and releasing system (6), and the releasing system (6) includes a locking member (601) and an unlocking member (602), and the two ends of the unlocking member (602) are respectively rotatably connected to the lower side plate (11) and the upper side plate (12), and the upper part of the locking member (601) is provided with a locking opening, and the locking opening is engaged with the upper end of the rocker arm (13), and the outer wall of the unlocking member (602) is in contact with the bottom of the locking member (601), and the unlocking member (602) is unlocked by turning over to separate from the bottom of the locking member (601).

8. The volume-optimized isolating switch operating mechanism according to claim 7, characterized in that: The locking member (601) is fixed between the lower side plate (11) and the upper side plate (12) through a positioning system (7); the positioning system (7) is a rod-shaped structure, with a first extending end (701) and a second extending end (702) respectively provided at both ends; the first extending end (701) and the second extending end (702) respectively extend from the outer walls of the lower side plate (11) and the upper side plate (12).

9. The volume-optimized isolating switch operating mechanism according to claim 1, characterized in that: The bottom end of the main spring (3) is connected to the pin of the third connecting rod (16), and the bottom end of the auxiliary spring (4) is connected to the bottom ends of the lower side (11) and the upper side plate (12).

10. The volume-optimized isolating switch operating mechanism according to claim 3, characterized in that: The cross-sectional structure of the second movable transmission hole (2022) is compatible with that of (201), and both are hexagonal structures.

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