A circuit breaker spring energy storage mechanism and a circuit breaker spring operating mechanism

Abstract

The application relates to the technical field of power transmission and transformation equipment, in particular to a circuit breaker spring energy storage mechanism and a circuit breaker spring operating mechanism. The circuit breaker spring energy storage mechanism of the circuit breaker spring operating mechanism comprises a spring cylinder, an energy storage spring and a spring pull rod installed in the spring cylinder, the front end of the spring pull rod is used for transmission connection with an operating main shaft, and the circuit breaker spring energy storage mechanism further comprises an energy storage indication device. The energy storage indication device comprises a fixed seat fixed at the rear end of the spring cylinder, an indication board is rotationally assembled on the rear side of the fixed seat away from the spring cylinder around a horizontal axis, an avoiding through hole is arranged on the fixed seat at a position corresponding to the spring pull rod, the spring pull rod is transmissionally connected to the indication board through the avoiding through hole, and the indication board is turned over to display different states when moving in the axial direction, so that the technical problems that the circuit breaker spring energy storage indication device is limited in installation and is difficult to maintain and overhaul due to the complex structure of the spring operating mechanism at the operating main shaft part in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of power transmission and transformation equipment technology, specifically to a circuit breaker spring energy storage mechanism and a circuit breaker spring operating mechanism. Background Technology

[0002] In existing circuit breaker operating mechanisms, a spring energy storage mechanism is usually provided. The spring energy storage mechanism can make "energy stored" and "energy not stored" indications according to the state of the spring operating mechanism. Thus, the staff can intuitively and quickly understand the energy storage status of the circuit breaker spring operating mechanism by observing the display status of the spring energy storage mechanism, avoiding the operation of the cabinet by the staff when the mechanism is in an energetic state, which may cause personal injury.

[0003] In the prior art, Chinese utility model patent with authorization announcement number CN217562429U discloses an energy storage indicator structure for a circuit breaker spring mechanism. The energy storage indicator structure includes a mechanism box and a spring mechanism and an energy storage indicator device assembled inside the mechanism box, so as to realize the indication work of the energy storage indicator device under the action of the spring mechanism. The spring mechanism includes a spring cylinder and an energy storage spring installed in the spring cylinder. A spring rod is installed inside the energy storage spring, and the front end of the spring rod is used to drive and connect to the rotating disk (i.e., the operating spindle). The energy storage indicator is located at the front end of the spring mechanism and near the rotating disk. The energy storage indicator includes a main support frame, the rear end of which is fixedly mounted on the spring mechanism. An indicator rod is rotatably mounted on the top of the frame via a rotating shaft. An indicator plate is located at the front end of the support frame, displaying the words "energy stored" and "energy not stored". A rectangular slot is provided on the indicator plate, into which the front end of the indicator rod extends and slides. The other end of the indicator rod contacts the spring mechanism. In use, the rotating disk drives the spring mechanism to switch between the energy storage and non-energy storage states, and the spring mechanism drives the indicator rod to indicate on the indicator plate, thus displaying the corresponding state of the spring operating mechanism.

[0004] However, because the aforementioned energy storage indicator structure is located near the operating spindle of the spring operating mechanism, and the operating mechanism has many transmission structures at the operating spindle position, the overall structure is complex, which greatly limits the design and actual installation of the spring energy storage indicator structure. Furthermore, adjusting and maintaining the spring energy storage indicator structure later is not easy, and each operation is time-consuming and labor-intensive, severely impacting work efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a circuit breaker spring energy storage mechanism to solve the technical problem in the prior art where the complex structure of the spring operating mechanism at the operating spindle section restricts the installation of the circuit breaker spring energy storage indicator and makes maintenance and repair difficult. Another purpose of this invention is to provide a circuit breaker spring operating mechanism to solve the technical problem in the prior art where the complex structure of the spring operating mechanism at the operating spindle section restricts the installation of the circuit breaker spring energy storage indicator and makes maintenance and repair difficult.

[0006] To achieve the above objectives, the technical solution of the circuit breaker spring energy storage mechanism of the present invention is as follows:

[0007] A circuit breaker spring energy storage mechanism includes a spring cylinder and an energy storage spring installed inside the spring cylinder. A spring rod is installed inside the energy storage spring, and the front end of the spring rod is used for transmission connection to the operating main shaft. The circuit breaker spring energy storage mechanism also includes an energy storage indicator device. The energy storage indicator device includes a fixed seat fixedly connected to the rear end of the spring cylinder. An indicator plate is rotatably mounted on the side of the fixed seat facing away from the rear of the spring cylinder about a horizontal axis. The fixed seat has a clearance hole at a position corresponding to the spring rod. The spring rod is transmission connected to the indicator plate through the clearance hole, and when moving axially, it drives the indicator plate to flip to display the energy-stored state and the non-energy-stored state.

[0008] Beneficial Effects: The circuit breaker spring energy storage mechanism of the present invention improves upon existing circuit breaker spring energy storage mechanisms by placing the energy storage indicator for displaying the status of the spring energy storage mechanism at the rear end of the spring cylinder. This allows the energy storage indicator to be positioned at the front end, away from the operating spindle, avoiding the installation limitations caused by the complex structure of the operating spindle at the front end of the spring cylinder. This improves the flexibility of the energy storage indicator's placement. Furthermore, during actual maintenance and repair, the absence of complex mechanical obstructions at this end facilitates operation by the operator. In summary, the circuit breaker spring energy storage mechanism of the present invention solves the technical problem in the prior art where the complex structure of the spring operating mechanism at the operating spindle location restricts the installation of the circuit breaker spring energy storage indicator and makes maintenance and repair difficult.

[0009] Furthermore, one end of the signpost in the rotation direction is connected to a spring rod via a transmission tension spring, and the other end of the signpost in the rotation direction is equipped with a balance tension spring.

[0010] Beneficial effects: The above design utilizes two tension springs to switch the sign between two indicating positions. This facilitates installation, maintenance, and replacement, while the tension springs themselves can adapt to position changes, resulting in high stability during actual use.

[0011] Furthermore, the elastic capacity of the transmission spring is comparable to that of the balance spring.

[0012] Beneficial effects: The above design ensures the stability of the energy storage indicator in both the energy storage and non-energy storage states, preventing malfunctions caused by excessive tension on one side leading to difficulty in rotation.

[0013] Furthermore, the indicator is also equipped with a limit stop structure for limiting its rotation to two positions: displaying the energy storage state and the non-energy storage state.

[0014] The beneficial effect is that the above design can limit the rotation position of the indicator by using the limit stop structure, so that the indicator can be accurately flipped to the set indicator position and held, avoiding excessive tension of the tension spring that causes the indicator position to deviate and lead to indicator failure.

[0015] Furthermore, the sign is rotatably mounted via a rotating mounting base fixedly connected to a fixed base. The rotating mounting base includes two horizontally opposite fixed upright plates. The sign has two horizontally opposite rotating mounting upright plates. The sign is rotatably mounted on the rotating mounting base via pins passing through the two rotating mounting upright plates and the two fixed upright plates. The limiting stop structure is a stop protrusion protruding from the surface of the fixed upright plates.

[0016] Beneficial effects: Through the above design, the stop protrusion is used as a limiting stop structure, the overall structure is simple and does not easily interfere with other components.

[0017] Furthermore, a limiting support shaft is connected between the two fixed upright plates, and at least one end of the limiting support shaft extends out of the fixed upright plate and forms the stop protrusion.

[0018] Beneficial effects: Through the above design, the limiting support shaft can improve the compressive strength of the two fixed uprights on the axis of the support shaft, and the stop protrusion formed at the end of the limiting support shaft can make the overall structure more compact.

[0019] Furthermore, the other end of the balance spring is hooked onto the limiting support shaft.

[0020] Beneficial effects: By using the limiting support shaft as the mounting position for one end of the balance tension spring through the above design, each structure can be fully utilized, making the internal structure more compact and reducing the overall volume.

[0021] Furthermore, the sign is an angular sign, with indicator marks respectively arranged on the two plates forming an included angle, and a transmission spring and a balance spring respectively connected to the opposite edges of the two plates.

[0022] Beneficial effects: By designing the sign as an angled sign, the two sides of the angled sign can be used to set corresponding indicators. Different indicators can be arranged at different angles to ensure the accuracy of observation by users. The transmission spring and the balance spring are arranged on opposite edges of the two sides to ensure that the sign is subjected to balanced force and stable movement during movement.

[0023] Furthermore, the fixing base is a fixing plate, which is fixedly connected to the connecting leg of the spring cylinder by a bolt assembly.

[0024] Beneficial effects: The above design utilizes the original connecting legs of the spring cylinder to fix the connecting plate, which simplifies the structural complexity.

[0025] To achieve the above objectives, the technical solution of the circuit breaker spring operating mechanism of the present invention is as follows:

[0026] A circuit breaker spring operating mechanism includes a circuit breaker spring energy storage mechanism and an operating spindle that drives the circuit breaker spring energy storage mechanism to switch between an energy storage state and an unenergy storage state. The circuit breaker spring energy storage mechanism includes a spring cylinder and an energy storage spring installed inside the spring cylinder. A spring rod is inserted inside the energy storage spring, and the front end of the spring rod is used for transmission connection to the operating spindle. The circuit breaker spring energy storage mechanism also includes an energy storage indicator device. The energy storage indicator device includes a fixed seat fixedly connected to the rear end of the spring cylinder. An indicator plate is rotatably mounted on the fixed seat about a horizontal axis, facing away from the rear of the spring cylinder. A clearance hole is provided on the fixed seat at a position corresponding to the spring rod. The spring rod is transmissionally connected to the indicator plate through the clearance hole, and during axial movement, it causes the indicator plate to flip to display the energy storage state and the unenergy storage state.

[0027] Beneficial Effects: The circuit breaker spring energy storage mechanism of the present invention improves upon existing circuit breaker spring energy storage mechanisms by placing the energy storage indicator for displaying the status of the spring energy storage mechanism at the rear end of the spring cylinder. This allows the energy storage indicator to be positioned at the front end, away from the operating spindle, avoiding the installation limitations caused by the complex structure of the operating spindle at the front end of the spring cylinder. This improves the flexibility of the energy storage indicator's placement. Furthermore, during actual maintenance and repair, the absence of complex mechanical obstructions at this end facilitates operation by the operator. In summary, the circuit breaker spring operating mechanism of the present invention solves the technical problem in the prior art where the complex structure of the spring operating mechanism at the operating spindle location restricts the installation of the circuit breaker spring energy storage indicator and makes maintenance and repair difficult.

[0028] Furthermore, one end of the signpost in the rotation direction is connected to a spring rod via a transmission tension spring, and the other end of the signpost in the rotation direction is equipped with a balance tension spring.

[0029] Beneficial effects: The above design utilizes two tension springs to switch the sign between two indicating positions. This facilitates installation, maintenance, and replacement, while the tension springs themselves can adapt to position changes, resulting in high stability during actual use.

[0030] Furthermore, the elastic capacity of the transmission spring is comparable to that of the balance spring.

[0031] Beneficial effects: The above design ensures the stability of the energy storage indicator in both the energy storage and non-energy storage states, preventing malfunctions caused by excessive tension on one side leading to difficulty in rotation.

[0032] Furthermore, the indicator is also equipped with a limit stop structure for limiting its rotation to two positions: displaying the energy storage state and the non-energy storage state.

[0033] The beneficial effect is that the above design can limit the rotation position of the indicator by using the limit stop structure, so that the indicator can be accurately flipped to the set indicator position and held, avoiding excessive tension of the tension spring that causes the indicator position to deviate and lead to indicator failure.

[0034] Furthermore, the sign is rotatably mounted via a rotating mounting base fixedly connected to a fixed base. The rotating mounting base includes two horizontally opposite fixed upright plates. The sign has two horizontally opposite rotating mounting upright plates. The sign is rotatably mounted on the rotating mounting base via pins passing through the two rotating mounting upright plates and the two fixed upright plates. The limiting stop structure is a stop protrusion protruding from the surface of the fixed upright plates.

[0035] Beneficial effects: Through the above design, the stop protrusion is used as a limiting stop structure, the overall structure is simple and does not easily interfere with other components.

[0036] Furthermore, a limiting support shaft is connected between the two fixed upright plates, and at least one end of the limiting support shaft extends out of the fixed upright plate and forms the stop protrusion.

[0037] Beneficial effects: Through the above design, the limiting support shaft can improve the compressive strength of the two fixed uprights on the axis of the support shaft, and the stop protrusion formed at the end of the limiting support shaft can make the overall structure more compact.

[0038] Furthermore, the other end of the balance spring is hooked onto the limiting support shaft.

[0039] Beneficial effects: By using the limiting support shaft as the mounting position for one end of the balance tension spring through the above design, each structure can be fully utilized, making the internal structure more compact and reducing the overall volume.

[0040] Furthermore, the sign is an angular sign, with indicator marks respectively arranged on the two plates forming an included angle, and a transmission spring and a balance spring respectively connected to the opposite edges of the two plates.

[0041] Beneficial effects: By designing the sign as an angled sign, the two sides of the angled sign can be used to set corresponding indicators. Different indicators can be arranged at different angles to ensure the accuracy of observation by users. The transmission spring and the balance spring are arranged on opposite edges of the two sides to ensure that the sign is subjected to balanced force and stable movement during movement.

[0042] Furthermore, the fixing base is a fixing plate, which is fixedly connected to the connecting leg of the spring cylinder by a bolt assembly.

[0043] Beneficial effects: The above design utilizes the original connecting legs of the spring cylinder to fix the connecting plate, which simplifies the structural complexity. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the circuit breaker spring energy storage mechanism in the non-energy storage state of Embodiment 1 of the circuit breaker spring operating mechanism of the present invention;

[0045] Figure 2 This is a schematic diagram of the circuit breaker spring energy storage mechanism in the energy-stored state of Embodiment 1 of the circuit breaker spring operating mechanism of the present invention.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1. Spring cylinder; 11. Connecting foot; 2. Spring rod; 3. Energy storage indicator; 31. Fixing plate; 32. Indicator sign; 321. Unstored energy plate surface; 322. Stored energy plate surface; 323. Rotating mounting plate; 33. Clearance perforation; 34. Transmission tension spring; 35. Balance tension spring; 36. Rotating mounting base; 361. Fixing plate; 37. Pin shaft; 38. Limiting support shaft. Detailed Implementation

[0048] The present invention discloses a circuit breaker spring operating mechanism in which an energy storage indicator for displaying the status of the spring energy storage mechanism is arranged at the rear end of the spring cylinder. This allows the energy storage indicator to be arranged at the front end, away from the operating spindle, avoiding the installation restrictions caused by the complex structure of the operating spindle at the front end of the spring cylinder. This improves the flexibility of the energy storage indicator arrangement. At the same time, during actual maintenance and repair, this end is not obstructed by complex mechanical structures, making it convenient for operators to operate.

[0049] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0050] Specific embodiment 1 of the circuit breaker spring operating mechanism provided by the present invention:

[0051] For the purpose of description, limited Figure 1 The axis of the spring cylinder 1 extends in the front-rear direction, and the spring cylinder 1 is arranged at the front end of the energy storage indicator 3.

[0052] like Figure 1 As shown, in this embodiment, the circuit breaker spring operating mechanism (hereinafter referred to as the operating mechanism) includes a circuit breaker spring energy storage mechanism and an operating spindle (not shown in the figure) that drives the circuit breaker spring energy storage mechanism to switch between an energy storage state and an un-energy storage state.

[0053] The circuit breaker spring energy storage mechanism includes a spring cylinder 1 with its axis extending back and forth, and an operating spindle is arranged at the front end of the spring cylinder 1. An energy storage spring (not shown in the figure) is installed inside the spring cylinder 1, and a spring rod 2 is installed inside the energy storage spring. The front end of the spring rod 2 is connected to the operating spindle for transmission.

[0054] like Figure 1 , 2 As shown, the circuit breaker spring energy storage mechanism also includes an energy storage indicator device 3 disposed at the rear end of the spring cylinder 1 and connected to the spring rod 2 in a transmission manner. The energy storage indicator device 3 includes a fixed seat fixedly connected to the rear end of the spring cylinder 1. In this embodiment, the fixed seat is a fixed plate 31. The fixed plate 31 is fixedly installed on the connecting leg 11 of the spring cylinder 1 by a bolt assembly. This allows the original connecting leg 11 of the spring cylinder 1 to be used to fix the fixed plate 31, which simplifies the structural complexity.

[0055] In this embodiment, as Figure 1 , 2 As shown, an indicator plate 32 is rotatably mounted on the rear side of the fixed plate 31 facing away from the spring cylinder 1 around a horizontal axis. The indicator plate 32 is an angular indicator plate 32. "Energy stored" and "Not energy stored" indicators are respectively arranged on the two plates forming an included angle of the angular indicator plate 32, thus forming an energy-stored plate surface 322 and an energy-not-stored plate surface 321. In this embodiment, the included angle between the two plates of the angular indicator plate 32 is 90°.

[0056] In this embodiment, a rotating mounting base 36 for rotating the indicator 32 is provided on the rear end face of the fixed plate 31. The rotating mounting base 36 includes two horizontally opposite fixed plates 361. The indicator 32 has two horizontally opposite rotating mounting plates 323. The indicator 32 is rotatably mounted on the rotating mounting base 36 by a pin 37 passing through the two rotating mounting plates 323 and the two fixed plates 361. In this way, when the indicator 32 is subjected to force, it can be flipped along the rotation axis. By rotating at different angles, the different indicating states of the two plates of the angular indicator 32 can be observed for indication.

[0057] In this embodiment, a clearance hole 33 is provided on the fixed plate 31 at the position corresponding to the spring rod 2. The spring rod 2 is connected to the indicator plate 32 through the clearance hole 33, and the energy storage indicator device 3 is positioned above the spring rod 2. When the spring rod 2 is driven to reciprocate axially by the operating spindle, it can cause the indicator plate 32 to flip to display the energy-stored and non-energy-stored states. In other embodiments, the energy storage indicator device 3 can be positioned below the spring rod 2. In this case, the vertical positions of the two indicator marks on the indicator plate 32 need to be swapped for adjustment to ensure accurate indication.

[0058] Specifically, such as Figure 1 As shown, a transmission tension spring 34 connects the spring rod 2 to the lower plate of the indicator 32. A limiting support shaft 38 extending along the rotation axis of the indicator 32 is provided between the two fixed upright plates 361 near the fixed plate 31. There are two limiting support shafts 38 arranged in the vertical direction. A balance tension spring 35 connects the upper limiting support shaft 38 to the upper plate of the indicator 32. In this embodiment, the elastic capacity of the balance tension spring 35 and the transmission tension spring 34 is equivalent. The two tension springs are used to switch the energy storage indicator 32 between two indicating positions. This facilitates installation, maintenance and replacement. In addition, the tension springs themselves can adapt to position changes and have high stability in actual use.

[0059] In this embodiment, both ends of the two limiting support shafts 38 distributed along the vertical direction extend out of the surface of the fixed upright plate 361 to form stop protrusions. These stop protrusions limit the rotation of the indicator plate 32 to both the energized and de-energized states, forming a limiting stop structure. Simultaneously, this limiting stop structure restricts the rotational position of the indicator plate 32, ensuring it accurately rotates to and maintains the set indicator position, preventing excessive tension from causing position deviation and indicator failure. The limiting support shafts 38 improve the compressive strength of the two fixed upright plates 361 along the support shaft axis, and the stop protrusions at the ends of the limiting support shafts 38 make the overall structure more compact.

[0060] In this embodiment, as Figure 1 , 2 As shown, the transmission spring 34 and the balance spring 35 are respectively connected to the opposite edges of the two indicator plates 32, which can make the force on the indicator plates 32 balanced and the movement stable during the movement.

[0061] The indication process of the energy storage indicator device of the circuit breaker spring operating mechanism of the present invention during the opening and closing process is as follows:

[0062] like Figure 2 As shown, when the circuit breaker spring operating mechanism stores energy, the spring rod 2 moves forward, and the spring rod 2 drives the transmission spring 34 to extend, which in turn causes the indicator plate 32 to rotate downward. At this time, the balance spring 35 is also stretched under force and provides a balancing force. When the rotating mounting plate 323 of the indicator plate 32 is stopped by the lower limiting protrusion, the movement of the indicator plate 32 ends. At this time, the surface of the energy-stored indicator plate 32 is in a vertical state, and the staff can observe it from the rear to indicate the energy storage.

[0063] like Figure 1 As shown, when the circuit breaker spring operating mechanism releases energy, the spring rod 2 moves backward. At this time, the transmission spring 34 retracts backward. Under the action of the balance spring 35, the indicator plate 32 rotates upward until the rotating mounting plate 323 of the indicator plate 32 is stopped by the upper limiting protrusion. At this time, the surface of the non-energy-stored indicator of the indicator plate 32 is in a vertical state and can be observed by the staff from the rear to indicate the non-energy-stored state.

[0064] In summary, the circuit breaker spring operating mechanism of the present invention arranges the energy storage indicator 3, which is used to display the status of the spring energy storage mechanism, at the rear end of the spring cylinder 1. This allows the energy storage indicator 3 to be arranged at the front end, away from the operating spindle, avoiding the installation restrictions caused by the complex structure of the operating spindle at the front end of the spring cylinder 1. This improves the flexibility of the arrangement of the energy storage indicator 3. At the same time, during actual maintenance and repair, this end is not obstructed by complex mechanical structures, making it easy for operators to operate. This solves the technical problem in the prior art where the complex structure of the spring operating mechanism at the operating spindle causes restrictions on the installation of the circuit breaker spring energy storage indicator 3 and makes maintenance and repair difficult.

[0065] Embodiment 2 of the circuit breaker spring operating mechanism of the present invention:

[0066] This embodiment provides a different transmission connection structure between the spring rod and the indicator sign. The difference from Embodiment 1 is that in this embodiment, a linkage structure is provided between the spring rod and the indicator sign. The spring rod drives the indicator sign to rotate through the linkage mechanism to indicate different states. At this time, only one linkage mechanism needs to be provided between the spring rod and the plate surface on the lower side of the indicator sign. At the same time, the linkage structure itself has a specific motion trajectory, so that when the usage requirements are met, a limit stop structure is not required.

[0067] Embodiment 3 of the circuit breaker spring operating mechanism of the present invention:

[0068] This embodiment provides a balance tension spring and a rotation tension spring with elastic capacity. The difference from Embodiment 1 is that, in this embodiment, the elastic capacity of the transmission tension spring and the balance tension spring can be different when meeting the usage requirements, as long as they can ensure that the spring rod moves to the two indicated positions.

[0069] Embodiment 4 of the circuit breaker spring operating mechanism of the present invention:

[0070] This embodiment provides an energy storage indicator device with a different structure. The difference from Embodiment 1 is that, in this embodiment, by designing the elastic capacity of the two tension springs, the different balance positions of the two tension springs can be used as the indication positions of the energy storage mark and the energy non-energy storage mark in the energy storage state and the non-energy storage state, and at this time, the limit stop structure does not need to be set.

[0071] Embodiment 5 of the circuit breaker spring operating mechanism of the present invention:

[0072] This embodiment provides a different limiting stop structure. The difference from Embodiment 1 is that in this embodiment, the two adjacent sides of the rotating mounting plate are respectively provided with limiting rods extending perpendicularly to that side. When the indicator is flipped to different positions, the two limiting rods abut against the fixed plate to limit the movement.

[0073] Embodiment 6 of the circuit breaker spring operating mechanism of the present invention:

[0074] This embodiment provides a different stop protrusion. The difference from Embodiment 1 is that in this embodiment, a stop block is fixedly installed on the side of the fixed plate, and the stop block is used to form the stop protrusion.

[0075] Embodiment 7 of the circuit breaker spring operating mechanism of the present invention:

[0076] This embodiment provides a different limiting and stopping structure. The difference from Embodiment 1 is that, in this embodiment, when the usage requirements are met, the limiting support shaft can extend out of the fixed vertical plate at only one end to form a stop protrusion.

[0077] Embodiment 8 of the circuit breaker spring operating mechanism of the present invention:

[0078] This embodiment provides a different installation method for the balance spring. The difference from Embodiment 1 is that in this embodiment, a locking ring is provided on the side of the fixing plate facing the balance spring, and the end of the balance spring facing away from the sign is hooked in the locking ring.

[0079] Embodiment 9 of the circuit breaker spring operating mechanism of the present invention:

[0080] This embodiment provides a sign with a different structure. The difference from embodiment 1 is that in this embodiment, the indicating surface of the sign is an arc-shaped surface. The upper and lower sides of the arc-shaped surface are respectively provided with an energy-stored indicator and an energy-not-stored indicator. When the sign is rotated, the different indicator can be observed from the rear side, thereby using the arc-shaped sign for indication.

[0081] Embodiment 10 of the circuit breaker spring operating mechanism of the present invention:

[0082] This embodiment provides a different fixing method for the fixing plate and the spring cylinder. The difference from Embodiment 1 is that in this embodiment, the fixing plate can be directly welded and fixed to the end face of the spring cylinder.

[0083] Specific embodiments of the circuit breaker spring energy storage mechanism of the present invention: The embodiments of the circuit breaker spring energy storage mechanism have the same structure as the circuit breaker spring operating mechanism in the above embodiments, and will not be described again here.

[0084] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A circuit breaker spring energy storage mechanism, comprising a spring cylinder (1) and an energy storage spring installed inside the spring cylinder (1), wherein a spring rod (2) is inserted inside the energy storage spring, and the front end of the spring rod (2) is used for transmission connection to an operating spindle, characterized in that, The circuit breaker spring energy storage mechanism also includes an energy storage indicator device (3). The energy storage indicator device (3) includes a fixed seat fixedly connected to the rear end of the spring cylinder (1). An indicator plate (32) is mounted on the side of the fixed seat facing away from the rear of the spring cylinder (1) and rotates around the horizontal axis. A clearance hole (33) is provided on the fixed seat at the position corresponding to the spring rod (2). The spring rod (2) is connected to the indicator plate (32) through the clearance hole (33) and rotates in the axial direction to rotate the indicator plate (32) to show the energy storage state and the non-energy storage state. One end of the indicator plate (32) in the rotation direction is connected to the spring rod (2) through a transmission spring (34). The other end of the indicator plate (32) in the rotation direction is equipped with a balance spring (35). The elastic capacity of the transmission spring (34) and the balance spring (35) is equivalent.

2. The circuit breaker spring energy storage mechanism according to claim 1, characterized in that, The sign (32) is also equipped with a limit stop structure for limiting its rotation to two positions: displaying the energy storage state and the non-energy storage state.

3. The circuit breaker spring energy storage mechanism according to claim 2, characterized in that, The sign (32) is rotatably mounted by a rotating mounting base (36) fixedly connected to a fixed base. The rotating mounting base (36) includes two horizontally opposite fixed upright plates (361). The sign (32) has two horizontally opposite rotating mounting upright plates (323). The sign (32) is rotatably mounted on the rotating mounting base (36) by a pin (37) passing through the two rotating mounting upright plates (323) and the two fixed upright plates (361). The limiting stop structure is a stop protrusion protruding from the surface of the fixed upright plate (361).

4. The circuit breaker spring energy storage mechanism according to claim 3, characterized in that, A limiting support shaft (38) is connected between the two fixed upright plates (361), and at least one end of the limiting support shaft passes through the fixed upright plate (361) and forms the stop protrusion.

5. The circuit breaker spring energy storage mechanism according to claim 4, characterized in that, The other end of the balance spring (35) is hooked onto the limiting support shaft (38).

6. The circuit breaker spring energy storage mechanism according to any one of claims 1-5, characterized in that, The sign (32) is an angular sign (32). Indicator marks are respectively arranged on the two plates forming an angle on the angular sign (32). The transmission spring (34) and the balance spring (35) are respectively connected to the opposite edges of the two plates.

7. The circuit breaker spring energy storage mechanism according to any one of claims 1-5, characterized in that, The fixed base is a fixed plate (31), which is fixedly connected to the connecting leg (11) of the spring cylinder (1) by bolt assembly.

8. A circuit breaker spring operating mechanism, comprising a circuit breaker spring energy storage mechanism and an operating spindle for driving the circuit breaker spring energy storage mechanism to switch between an energy storage state and an unstored energy state, characterized in that, The circuit breaker spring energy storage mechanism is the circuit breaker spring energy storage mechanism described in any one of claims 1-7.

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