An operating mechanism for a switchgear

Abstract

The utility model provides a kind of operating mechanism for switch cabinet, comprising: rack;Output, rotation is equipped in rack and is linked with linkage piece;Several operating members, limit rotation is equipped in rack and is respectively linked with output position setting, first elastic member is connected between several operating members, first elastic member is used to in one operating member rotation switching station when first compression energy storage release top push operating member rotation;Locking assembly, including rotation is equipped in rack and is locked and is arranged in the linkage piece both sides of several locking members, with several operating members linkage setting and for driving several locking members rotation of several unlocking members, several locking members side recess is equipped with the unlocking slot of the circumferential corresponding linkage piece.Can be through the locking of locking member and be realized when operating mechanism resets to isolation station, immediately through several locking members locking linkage piece, and then locking output, to avoid the situation of operating member continues to drive output swing due to the rebound of first elastic member.

Description

Technical Field

[0001] This utility model relates to the field of operating mechanisms, specifically an operating mechanism for switch cabinets. Background Technology

[0002] The three-position operating mechanism of the switchgear includes three positions: grounding position, isolation position, and closing position. The operating mechanism is mainly used to ensure the normal switching of the disconnecting switch in the switchgear between the three positions. That is, it ensures that the disconnecting switch must pass through the isolation position before switching between the grounding position and the closing position, so as to ensure the safe operation of the switchgear and the personal safety of the personnel.

[0003] The three-position operating mechanism has a spring connecting the grounding operating shaft and the closing operating shaft used to rotate the output shaft. The initial position of the two operating shafts is the isolated position. The spring is used to compress and then release when switching positions by rotating the operating shaft on one side, to assist the operator in switching positions. However, this setting has a safety hazard: when the operating shaft returns to the isolated position, the spring contracts and rebounds, causing the operating shaft to continue to drive the output shaft to swing. This could then cause the disconnect switch to swing within the switch cabinet, resulting in arcing or discharge.

[0004] The research objective of this utility model is to design an operating mechanism for switch cabinets to address the problems existing in the prior art. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides an operating mechanism for switch cabinets, which can effectively solve the problems existing in the prior art.

[0006] The technical solution of this utility model is: An operating mechanism for a switchgear includes: frame; The output component is rotatably mounted on the frame and is linked by a linkage component. Several operating components are rotatably mounted on the frame and are respectively linked to the output component. A first elastic element is connected between the several operating components. The first elastic element is used to compress and store force and then release to push the operating component to rotate when one of the operating components rotates to switch positions. The locking assembly includes a plurality of locking members rotatably mounted on the frame and lockingly positioned on both sides of the linkage member, and a plurality of unlocking members linked with a plurality of operating members and used to drive the plurality of locking members to rotate. The sides of the plurality of locking members are recessed with unlocking grooves corresponding to the linkage members in a circumferential direction. When an operating member rotates to switch work positions, the unlocking member drives the locking member to rotate to the unlocking groove, allowing the linkage member to rotate. When an operating member rotates to reset, the linkage member and the first elastic member reset, and the locking member resets and locks itself on the side of the linkage member.

[0007] Furthermore, several locking members are locked and blocked on both sides of the linkage member by the tension of the second elastic member. The locking assembly also includes several trigger members that are linked with the locking members and circumferentially corresponding to several unlocking members. The unlocking members are columnar, and the side of the trigger members circumferentially corresponding to the unlocking members is arc-shaped. The frame is provided with a stop post that limits and blocks the arc-shaped side of several trigger members. When an operating member rotates to switch positions, the unlocking member moves the trigger members and drives the locking members to rotate to the unlocking slot to allow the linkage member to rotate.

[0008] Furthermore, several of the operating components include a grounding operating shaft and a closing operating shaft with identical structures and symmetrically located on both sides of the output component, and the first elastic element is a spring with its two ends rotatably connected to one side of the grounding operating shaft and the other side of the closing operating shaft.

[0009] Furthermore, the operating component is provided with two limit plates that are spaced apart and connected. The two ends of the spring are respectively rotatably disposed between the two limit plates on both sides. The inner and outer ends of the limit plates are respectively recessed with first limit grooves. The frame is provided with a limit post that abuts against the first limit groove at the outer end of the limit plate. When the grounding operating shaft rotates clockwise or the closing operating shaft rotates counterclockwise, the spring first compresses and stores energy and then releases it to push the limit plate on the corresponding side to rotate to the first limit groove at the inner end to abut against the limit post.

[0010] Furthermore, each of the aforementioned operating components is linked to the output component via a linkage assembly. The linkage assembly includes a drive plate rotatably mounted on the frame and rotatably sleeved with the operating component, a driven plate mounted on the output component, and an arc-shaped linkage rod that rotates the drive plate and the driven plate. A drive end is formed on the middle of the other side of the drive plate, perpendicular to the inner and outer ends of the limiting plate. The inner and outer sides of the drive end are respectively recessed with a drive groove and a second limiting groove. The inner side of the limiting plate is provided with a drive post corresponding to the drive groove in the circumferential direction. When the spring is compressed and stores energy, the limiting plate rotates until the drive post enters the drive groove. When the spring is released and pushes the limiting plate on the corresponding side to rotate until the first limiting groove at the inner end abuts against the limiting post, the drive post pushes the drive plate to rotate rapidly through the drive groove until the second limiting groove abuts against the limiting post.

[0011] Furthermore, the number of locking, triggering, and unlocking components is set to two, and they are symmetrically located on both sides of the output component. The two triggering components correspond to the driving slots respectively, and the two unlocking components are respectively located on the inner side of the limiting plates on both sides. When the spring is compressed and stores energy, the limiting plate rotates until the driving column enters the driving slot and the unlocking component actuates the triggering component.

[0012] Furthermore, the linkage component is designed as a long strip with one end extending between the two locking components.

[0013] Therefore, the beneficial effects of this utility model are: 1. By adding a locking component, when an operating element rotates to switch positions, the unlocking component drives the locking component to rotate into the unlocking slot, allowing the linkage component to rotate, and the output component is then driven to rotate by the operating element. When an operating element rotates and causes the output component to reset to the isolation position, the linkage component and the first elastic component reset, and the locking component resets and locks itself to the side of the linkage component. Thus, through the unlocking and locking of the locking component, during the switching of the operating mechanism to the grounding or closing position, the linkage component and output component are allowed to rotate. When the operating mechanism resets to the isolation position, the linkage component is immediately locked by several locking components, thereby locking the output component. This prevents the operating element from continuing to drive the output component to swing due to the rebound of the first elastic component, thus preventing the disconnector connected to the output component from swinging within the switch cabinet and causing arcing or discharge hazards, thereby improving the safety of the operating mechanism.

[0014] 2. Through the cooperation of the second elastic element and the stop post, several locking elements can be stably locked on both sides of the linkage element in the initial position. Furthermore, through the setting of the columnar unlocking element and the unlocking element with an arc on one side, when switching work positions, the unlocking element can quickly and smoothly move the trigger element to drive the unlocking locking element to unlock. This avoids friction interference between the unlocking element and the trigger element, which would cause the unlocking progress to be slow and thus prevent the linkage element from being unlocked in time and getting stuck. This improves the stability of locking and unlocking of the locking element.

[0015] 3. By setting up limit plates and limit posts, when the grounding operating shaft rotates clockwise or the closing operating shaft rotates counterclockwise, the spring first compresses and stores energy, then releases it to push the limit plate on the corresponding side to rotate until it abuts the limit post at the inner end of the first limit groove. This ensures that the rotation of the operating component, switching positions, and resetting are respectively limited by the abutment of the inner and outer limit grooves and limit posts. Through the pushing action of the spring and the retraction action of the reset, the rotation angle of the operating component is ensured to be accurate and the rotation speed is fast, achieving accurate and rapid position switching and improving the rotational stability of the operating component.

[0016] 4. By setting the drive plate and linkage rod, and perpendicularly positioning the drive end of the drive plate to the inner and outer ends of the limit plate, an angle difference of approximately 90° exists between the drive groove and the first limit groove. This allows the limit plate to rotate until the drive column enters the drive groove when the spring is compressed and storing energy. When the spring releases, it pushes the corresponding side of the limit plate to rotate until the inner end of the first limit groove abuts against the limit column. Simultaneously, the drive column pushes the drive plate through the drive groove to quickly rotate to the second limit groove abut against the limit column. This achieves the following: the drive plate and output component do not rotate when the spring is storing energy; when the spring releases, the drive column quickly pushes the drive plate to rotate, thereby rapidly rotating the output component to switch positions via the linkage rod. This avoids arcing and discharge phenomena within the switch cabinet caused by slow rotation of the output component, improving the speed and stability of position switching.

[0017] 5. By strategically positioning the trigger elements, when the spring is compressed and storing energy, the limiting plate rotates until the drive column enters the drive slot, and the unlocking element actuates the trigger element. This ensures that the trigger element is already unlocked by the unlocking element while the spring is storing energy and the drive plate and output component are not rotating. This allows the locking element to unlock prematurely, preparing for the next step where the spring releases, causing the drive column to quickly rotate the drive plate, which in turn rotates the output component. This ensures the locking element can unlock stably and prematurely, avoiding interference with the linkage components.

[0018] 6. By using a long, strip-shaped linkage, the torque transmitted from the output component to the end of the linkage can be reduced, allowing the locking component to easily lock the linkage, thereby locking the output component, reducing the stress on the locking component, extending its service life, and improving the locking strength of the locking component. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the operating mechanism for a switchgear.

[0020] Figure 2 for Figure 1 A schematic diagram of the structure after the rack has been removed.

[0021] Figure 3 for Figure 2 A top-view structural diagram.

[0022] Figure 4 for Figure 2 A schematic diagram of the structure viewed from below. Detailed Implementation

[0023] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings: refer to Figure 1-4 An operating mechanism for a switchgear, comprising: Rack 1; Output component 2 is rotatably mounted on the frame 1 and linked with linkage component 21. Output component 2 is an output shaft used to drive the isolation switch in the switch cabinet to rotate and switch positions. A plurality of operating components 3 are rotatably mounted on the frame 1 and are respectively linked to the output component 2. A first elastic element 4 is connected between the plurality of operating components 3. The first elastic element 4 is used to compress and store force and then release to push the operating component 3 to rotate when one of the operating components 3 rotates to switch positions. Specifically, when the plurality of operating components 3 are in the initial position, the operating mechanism and the isolating switch are both in the isolating position. The locking assembly 5 includes a plurality of locking members 51 rotatably mounted on the frame 1 and locked and blocked on both sides of the linkage member 21, and a plurality of unlocking members 52 linked with the plurality of operating members 3 and used to drive the plurality of locking members 51 to rotate. The sides of the plurality of locking members 51 are recessed with unlocking grooves 511 corresponding to the linkage member 21 in the circumferential direction.

[0024] The above structure, through the addition of locking component 5, allows the following: when one of the operating components 3 rotates to switch positions, the unlocking component 52 drives the locking component 51 to rotate into the unlocking slot 511, allowing the linkage component 21 to rotate, and the output component 2 to be driven to rotate by the operating component 3; when the operating component 3 rotates and drives the output component 2 to reset to the isolation position, the linkage component 21 and the first elastic component 4 reset, and the locking component 51 resets and locks against the side of the linkage component 21. Thus, by unlocking and locking the locking component 51, during the switching of the operating mechanism to the grounding or closing position, the linkage component 21 and the output component 2 are allowed to rotate. When the operating mechanism resets to the isolation position, the linkage component 21 is immediately locked by several locking components 51, thereby locking the output component 2. This prevents the operating component 3 from continuing to drive the output component 2 to swing due to the rebound of the first elastic component 4, thus preventing the disconnector connected to the output component 2 from swinging in the switch cabinet and causing arcing or discharge hazards, improving the safety of the operating mechanism.

[0025] To improve the stability of the locking member 51, several locking members 51 are locked and blocked on both sides of the linkage member 21 by the tension of the second elastic member 53. Specifically, the second elastic member is a torsion spring. The locking assembly 5 also includes several trigger members 54 that are linked with the locking member 51 and circumferentially corresponding to several unlocking members 52. The unlocking member 52 is columnar, and the side of the trigger member 54 circumferentially corresponding to the unlocking member 52 is arc-shaped. The frame 1 has a protruding stop post 11 that is limited and blocked on the arc-shaped side of several trigger members 54. When an operating member 3 rotates to switch positions, the unlocking member 52 moves the trigger member 54 and drives the locking member 51 to rotate to the unlocking groove 511 to allow the linkage member 21 to rotate. The above structure, through the cooperation of the second elastic element 53 and the stop post 11, enables several locking elements 51 to be stably locked on both sides of the linkage 21 in the initial position. Furthermore, through the setting of the columnar unlocking element 52 and the unlocking element 52 with an arc shape on one side, when switching work positions, the unlocking element 52 can quickly and smoothly move the trigger element 54 to drive the unlocking locking element 51 to unlock. This avoids frictional interference between the unlocking element 52 and the trigger element 54, which would lead to slow unlocking progress and cause the linkage 21 to jam due to not being unlocked in time. This improves the stability of locking and unlocking of the locking element 51.

[0026] Specifically, several of the operating components 3 include a grounding operating shaft 31 and a closing operating shaft 32, which are identical in structure and symmetrically located on both sides of the output component 2. The first elastic element 4 is a spring with its two ends rotatably connected to one side of the grounding operating shaft 31 and the other side of the closing operating shaft 32, respectively. An indicator is linked to the output component 2. The indicator includes a blocking end corresponding to the ends of the two operating components 3 in the circumferential direction. The grounding operating shaft 31 is used to rotate and drive the output component 2 to switch to the grounding position. At this time, the corresponding blocking end blocks the end of the closing operating shaft 32, making it impossible to operate. The closing operating shaft 32 is used to rotate and drive the output component 2 to switch to the closing position. At this time, the corresponding blocking end blocks the end of the grounding operating shaft 31, making it impossible to operate. At the same time, switches are also provided on both sides of the output component 2. When the output component 2 rotates, the switches are used to output position signals.

[0027] To improve the stability of the rotation of the operating component 3, the operating component 3 is provided with two spaced and connected limiting plates 33. The two ends of the spring are respectively rotatably disposed between the two limiting plates 33 on both sides. The inner and outer ends of the limiting plates 33 are respectively recessed with first limiting grooves 331. The frame 1 is provided with a limiting post 12 that is limited and abuts against the first limiting groove 331 at the outer end of the limiting plate 33. Through the setting of the limiting plates 33 and the limiting post 12, when the grounding operating shaft 31 rotates clockwise or the closing operating shaft 32 rotates counterclockwise, the spring first compresses and stores energy and then releases it to push the corresponding limiting plate 33 to rotate to the inner end of the first limiting groove 331 to abut against the limiting post 12. This ensures that the rotation of the operating component 3, including its switching position and reset, is limited by the first limiting groove 331 at the inner and outer ends and the limiting post 12 at the outer and inner ends, respectively. Through the pushing and retraction action of the spring, the rotation angle of the operating component 3 is accurate and the rotation speed is fast, achieving accurate and fast position switching and improving the rotational stability of the operating component 3.

[0028] To fully utilize the elastic force of the first elastic element 4 to achieve rapid rotation and switching of the output element 2, each of the operating elements 3 is linked to the output element 2 via a linkage assembly 6. The linkage assembly 6 includes a drive plate 61 rotatably mounted on the frame 1 and rotatably sleeved with the operating element 3, a driven plate 62 mounted on the output element 2, and an arc-shaped linkage rod 63 that rotates the drive plate 61 and the driven plate 62. A drive end 611 is formed on the middle of the other side of the drive plate 61, perpendicular to the inner and outer ends of the limiting plate 33. The inner and outer sides of the drive end 611 are respectively recessed with a drive groove 612 and a second limiting groove 613. The inner side of the limiting plate 33 is provided with a circumferentially corresponding drive groove. The drive column 34 of 612; the above structure, through the arrangement of drive plate 61 and linkage rod 63, and the perpendicular arrangement of drive end 611 of drive plate 61 and inner and outer ends of limit plate 33, makes the drive groove 612 and the first limit groove 331 have an angle difference of about 90°. So when the spring is compressed and stores energy, the limit plate 33 rotates until the drive column 34 enters the drive groove 612. When the spring releases and pushes the limit plate 33 on the corresponding side to rotate until the inner end of the first limit groove 331 abuts against the limit column 12, the drive column 34 pushes the drive plate 61 to rotate quickly through the drive groove 612 to the second limit groove 613 abut against the limit column 12. This means that when the spring is storing energy, the drive plate 61 and the output component 2 do not rotate, and when the spring is released, the drive column 34 quickly pushes the drive plate 61 to rotate, so as to drive the output component 2 to rotate quickly and switch positions through the linkage rod 63. This avoids the phenomenon of arcing and discharge in the switch cabinet caused by the slow rotation speed of the output component 2, and improves the speed and stability of position switching.

[0029] To ensure that the locking component 5 can be unlocked in advance, the number of locking elements 51, trigger elements 54, and unlocking elements 52 are all set in pairs and symmetrically located on both sides of the output component 2. The two trigger elements 54 correspond to the drive slots 612 respectively, and the two unlocking elements 52 are respectively located on the inner sides of the limiting plates 33 on both sides. Through the positional distribution of the trigger elements 54, when the spring is compressed and stored, the limiting plate 33 rotates until the drive column 34 enters the drive slot 612 and the unlocking element 52 actuates the trigger element 54. Thus, when the spring is stored and the drive plate 61 and the output component 2 are not rotating, the trigger element 54 is already actuated and unlocked by the unlocking element 52, which prepares the locking element 51 for the next step of the spring release to drive the drive column 34 to quickly push the drive plate 61 to rotate, and then drive the output component 2 to rotate. This ensures that the locking element 51 can be stably unlocked in advance and avoids interference with the linkage element 21.

[0030] To improve the locking strength of the locking member 51, the linkage member 21 is designed as a long strip with one end extending between the two locking members 51. Thus, the long strip-shaped linkage member 21 reduces the torque transmitted from the output member 2 to the end of the linkage member 21, allowing the locking member 51 to easily lock the linkage member 21, thereby locking the output member 2, reducing the stress on the locking member 51, extending its service life, and improving the locking strength of the locking member 51.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An operating mechanism for a switchgear, characterized in that, include: Rack (1); Output component (2) is rotatably mounted on the frame (1) and is linked by a linkage component (21). A number of operating components (3) are limited to rotate on the frame (1) and are respectively linked with the output component (2). A first elastic element (4) is connected between the operating components (3). The first elastic element (4) is used to compress and store force and then release to push the operating component (3) to rotate when one of the operating components (3) rotates to switch positions. The locking assembly (5) includes a plurality of locking members (51) rotatably mounted on the frame (1) and locked and blocked on both sides of the linkage member (21), and a plurality of unlocking members (52) linked with a plurality of operating members (3) and used to drive the plurality of locking members (51) to rotate. The sides of the plurality of locking members (51) are recessed and have unlocking grooves (511) corresponding to the linkage member (21) in the circumferential direction. When an operating member (3) rotates to switch positions, the unlocking member (52) drives the locking member (51) to rotate to the unlocking groove (511) to allow the linkage member (21) to rotate. When an operating member (3) rotates to reset, the linkage member (21) and the first elastic member (4) reset and the locking member (51) resets and is locked and blocked on the side of the linkage member (21).

2. The operating mechanism for a switchgear as described in claim 1, characterized in that, Several locking members (51) are locked and blocked on both sides of the linkage member (21) by the pulling force of the second elastic member (53). The locking assembly (5) also includes several trigger members (54) that are linked with the locking members (51) and circumferentially corresponding to several unlocking members (52). The unlocking members (52) are columnar, and the side of the trigger member (54) circumferentially corresponding to the unlocking member (52) is arc-shaped. The frame (1) is provided with a stop post (11) that is limited and blocked on the arc-shaped side of several trigger members (54). When an operating member (3) rotates to switch the work position, the unlocking member (52) moves the trigger member (54) and drives the locking member (51) to rotate to the unlocking groove (511) to allow the linkage member (21) to rotate.

3. The operating mechanism for a switchgear as described in claim 1, characterized in that, Several of the operating components (3) include a grounding operating shaft (31) and a closing operating shaft (32) that are identical in structure and symmetrically located on both sides of the output component (2). The first elastic component (4) is a spring that is rotatably connected at both ends to one side of the grounding operating shaft (31) and the other side of the closing operating shaft (32).

4. The operating mechanism for a switchgear as described in claim 3, characterized in that, The operating component (3) is provided with two limit plates (33) that are spaced apart and connected. The two ends of the spring are respectively rotatably disposed between the two limit plates (33) on both sides. The inner and outer ends of the limit plates (33) are respectively recessed with first limit grooves (331). The frame (1) is provided with a limit post (12) that is limited and abuts against the first limit groove (331) at the outer end of the limit plate (33). When the grounding operating shaft (31) rotates clockwise or the closing operating shaft (32) rotates counterclockwise, the spring first compresses and stores energy and then releases it to push the limit plate (33) on the corresponding side to rotate to the first limit groove (331) at the inner end to abut against the limit post (12).

5. The operating mechanism for a switchgear as described in claim 4, characterized in that, Each of the aforementioned operating components (3) is linked to the output component (2) via a linkage assembly (6). The linkage assembly (6) includes a drive plate (61) rotatably mounted on the frame (1) and rotatably sleeved with the operating component (3), a driven plate (62) mounted on the output component (2), and an arc-shaped linkage rod (63) that rotates the drive plate (61) and the driven plate (62). A drive end (611) is formed in the middle of the other side of the drive plate (61) and is perpendicular to the inner and outer ends of the limiting plate (33). The inner and outer sides of the drive end (611) are respectively recessed with drive grooves (612) and... The second limiting groove (613) is provided with a driving column (34) circumferentially corresponding to the driving groove (612) on the inner side of the limiting plate (33); when the spring is compressed and stored, the limiting plate (33) rotates until the driving column (34) enters the driving groove (612); when the spring is released and pushes the limiting plate (33) on the corresponding side to rotate to the first limiting groove (331) at the inner end to abut the limiting column (12), the driving column (34) pushes the driving plate (61) to rotate quickly to the second limiting groove (613) to abut the limiting column (12) through the driving groove (612).

6. The operating mechanism for a switchgear as described in claim 5, characterized in that, The number of locking element (51), trigger element (54) and unlocking element (52) is set to two and is symmetrically located on both sides of the output element (2). The two trigger elements (54) correspond to the drive groove (612) respectively, and the two unlocking elements (52) are respectively located on the inner side of the limiting plate (33) on both sides. When the spring is compressed and stored, the limiting plate (33) rotates until the drive column (34) enters the drive groove (612) and the unlocking element (52) pushes the trigger element (54).

7. The operating mechanism for a switchgear as described in claim 6, characterized in that, The linkage (21) is designed as a long strip and one end extends between the two locking elements (51).

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