CN116031098A - Three-station operating mechanism and direct-acting isolating switch - Google Patents
Three-station operating mechanism and direct-acting isolating switch Download PDFInfo
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- CN116031098A CN116031098A CN202211493959.4A CN202211493959A CN116031098A CN 116031098 A CN116031098 A CN 116031098A CN 202211493959 A CN202211493959 A CN 202211493959A CN 116031098 A CN116031098 A CN 116031098A
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Abstract
The utility model relates to the technical field of isolating switches, in particular to a three-station operating mechanism and a direct-acting isolating switch. The three-station operating mechanism comprises a frame body, wherein an isolation operating shaft and a grounding operating shaft are arranged on the frame body, a transmission shaft is rotatably assembled above the isolation operating shaft, a brake separating limit release cam is arranged on the transmission shaft, and the brake separating limit release cam is provided with a pushing convex part and a avoiding concave part; the frame body is also provided with a first swing frame and a second swing frame, and a movable plate is arranged below the isolation operation shaft; a first tension spring is arranged between the first swing frame and the movable plate, and a first reset spring is arranged between the frame body and the first swing frame; a second tension spring is arranged between the second swing frame and the movable plate, and a second reset spring is arranged between the frame body and the second swing frame; a limiting block is arranged on the isolation operation shaft, and a limiting part and a pushing matching part are arranged on the two swinging frames; the frame body is also provided with an operation hole interlocking plate, and the operation hole interlocking plate is provided with an operation hole and a connecting rod connected with the movable plate.
Description
Technical Field
The utility model relates to the technical field of isolating switches, in particular to a three-station operating mechanism and a direct-acting isolating switch.
Background
The three-station isolating switch is an electric device for switching on, isolating and grounding states, and can be generally divided into a knife switch type mode, a direct-acting mode and the like according to the movement mode of a contact. The direct-acting isolating switch is generally matched with the rotating and direct-acting operating mechanism due to the characteristics of the direct-acting isolating switch, and the direct-acting isolating switch is provided with a closing station, a grounding station and an isolating station positioned in the middle, wherein the closing station and the grounding station are positioned at two ends of the switch. The existing operating mechanism of the direct-acting isolating switch generally uses a single operating shaft to control the moving contact of the switch to switch among three stations, but has the following problems: when the switch is switched to a closing station or a grounding station, obvious hand feeling feedback is provided for reminding an operator of closing or grounding in place; when the switch is switched to the isolation station, no obvious hand feeling feedback is provided for reminding an operator of whether the operation is in place, the operator can only judge whether the operation is in place through the indication board on the surface of the equipment and the rotation number in the instruction book, the station cannot be accurately switched to the isolation station, and the condition that the operation is not in place or the operation is over is easy to occur.
The Chinese patent with the publication number of CN217521897U discloses an operating mechanism of a direct-acting isolating switch, which comprises a shell frame structure, wherein an isolating operating shaft, a grounding operating shaft and a transmission shaft are rotatably assembled on the shell frame structure, an indicating block is arranged on the transmission shaft, and a first limiting structure and a second limiting structure are also arranged on the shell frame in a swinging manner. When the operating handle is inserted on the isolating operating shaft, the operating handle can drive the first limiting structure to move to the moving path of the indicating block, and when the operating handle is inserted on the grounding operating shaft, the operating handle can drive the second limiting structure to move to the moving path of the indicating block, so that the indicating block accurately stays at the isolating station.
The operating mechanism in the technology has larger size in the axial direction of the operating shaft, so that the whole size of the operating mechanism is larger, and the miniaturization of the direct-acting isolating switch is not facilitated.
Disclosure of Invention
The utility model aims to provide a three-station operating mechanism, which solves the problem that the whole size of the operating mechanism is large due to the fact that the size of the operating mechanism in the axial direction of an operating shaft is large in the prior art; the utility model also aims to provide a direct-acting isolating switch so as to solve the problems.
In order to achieve the above purpose, the technical scheme of the three-station operating mechanism of the utility model is as follows:
the three-station operating mechanism comprises a frame body, an isolation operating shaft and a grounding operating shaft are rotatably assembled on the frame body, a transmission shaft is rotatably assembled above the isolation operating shaft on the frame body, a brake separating limit release cam is arranged on the transmission shaft, and the brake separating limit release cam is provided with a pushing convex part and a avoiding concave part which are oppositely arranged; the frame body is also provided with a first swing frame and a second swing frame in a swing way on two sides of the transmission shaft, and a movable plate is arranged below the isolation operation shaft; a first tension spring is arranged between the first swing frame and the movable plate, and a first reset spring is arranged between the frame body and the first swing frame; a second tension spring is arranged between the second swing frame and the movable plate, and a second reset spring is arranged between the frame body and the second swing frame; a limiting block is arranged on the isolation operation shaft, and a limiting part used for limiting and matching with the limiting block and a pushing matching part used for pushing and matching with the pushing convex part are arranged on the two swinging frames; the frame body is also provided with an operation hole interlocking plate in a swinging way, the operation hole interlocking plate is provided with an operation hole and a connecting rod connected with the movable plate, the isolation operation shaft and the grounding operation shaft are arranged at intervals in the swinging direction of the operation hole interlocking plate, and the operation hole is aligned with the isolation operation shaft or the grounding operation shaft when the operation hole interlocking plate swings.
The beneficial effects are that: according to the utility model, the operation hole interlocking plate is arranged, so that the isolation operation shaft and the grounding operation shaft are blocked by the operation hole interlocking plate when the operation mechanism is operated in a non-manual mode, and the operation handle cannot be inserted. When the operation hole interlocking plate is pushed to one side, the grounding operation shaft is exposed, grounding operation can be performed, and meanwhile, the isolation operation shaft keeps a shielding state. When the operation hole interlocking plate is pushed to the other side, the isolation operation shaft is exposed, closing operation can be performed, and the grounding operation shaft keeps in a shielding state. Moreover, through the spacing cooperation of spacing portion and stopper, only can operate ground connection operating axle and rotate to the ground connection switching-on by the ground connection switching-on or rotate to the ground connection switching-on by the ground connection switching-on, only can operate simultaneously and keep apart the operating axle and rotate to the isolation switching-on or rotate to the isolation switching-on by the isolation switching-on to the accurate station switch to the isolation station. In addition, the operating mechanism occupies smaller size in the axial direction of the operating shaft, so that the whole size of the operating mechanism is smaller, and the miniaturization of the direct-acting isolating switch is facilitated.
As a further improvement, the first swing frame and the second swing frame each comprise an arc-shaped arm and an L-shaped arm, the pushing matching part and the limiting part are arranged on the arc-shaped arm, the L-shaped arm comprises a horizontal arm section and a vertical arm section, one end, away from the vertical arm section, of the horizontal arm section is fixed on the arc-shaped arm, and one end, away from the horizontal arm section, of the vertical arm section is connected with a corresponding tension spring.
The beneficial effects are that: by the design, the tension spring is far away from the swing axis of the swing frame, namely the force arm is long, and the swing frame can be driven to rotate by applying small acting force.
As a further improvement, the end of the arc arm forms the limit part.
The beneficial effects are that: the design does not need to separately process the limiting part, and the processing technology is simplified.
As a further improvement, the end of the horizontal arm section remote from the vertical arm section is detachably fixed to the arc-shaped arm.
The beneficial effects are that: the design is convenient for the arc arm and the L-shaped arm to be independently processed, and is beneficial to the assembly of an operating mechanism.
As a further improvement, the first return spring and the second return spring are both return tension springs.
The beneficial effects are that: the reset tension spring is convenient to be arranged between the frame body and the corresponding swinging frame.
As a further improvement, the pushing engagement portion is a rolling body.
The beneficial effects are that: by the design, friction force can be reduced, and the brake release limiting release cam is facilitated to rotate.
As a further improvement, the first swing frame and the second swing frame are both fixedly provided with pin shafts, and the rolling bodies are shaft sleeves sleeved on the pin shafts.
The beneficial effects are that: by the design, the force applied to the shaft sleeve acts on the pin shaft, so that the shaft sleeve is ensured to be uniformly stressed when rotating, and deflection cannot occur.
As a further improvement, the connecting rod is a manual deflector rod, and the operation hole interlocking plate is also provided with a limiting pin connected with the movable plate, and the limiting pin and the manual deflector rod are arranged in parallel.
The beneficial effects are that: the design ensures the stability of the movable plate.
As a further improvement, the operation hole interlocking plate is also provided with an arc-shaped positioning hole, the transmission shaft penetrates through the positioning hole, and the operation hole is aligned with the isolation operation shaft and the grounding operation shaft respectively when the transmission shaft is in contact with the hole walls at the two ends of the positioning hole respectively.
In order to achieve the above purpose, the technical scheme of the direct-acting isolating switch of the utility model is as follows:
the direct-acting isolating switch comprises a switch body and a three-station operating mechanism, wherein the three-station operating mechanism comprises a frame body, an isolating operating shaft and a grounding operating shaft are rotatably assembled on the frame body, a transmission shaft is rotatably assembled above the isolating operating shaft on the frame body, a brake separating limit release cam is arranged on the transmission shaft, and the brake separating limit release cam is provided with a pushing convex part and a avoiding concave part which are oppositely arranged; the frame body is also provided with a first swing frame and a second swing frame in a swing way on two sides of the transmission shaft, and a movable plate is arranged below the isolation operation shaft; a first tension spring is arranged between the first swing frame and the movable plate, and a first reset spring is arranged between the frame body and the first swing frame; a second tension spring is arranged between the second swing frame and the movable plate, and a second reset spring is arranged between the frame body and the second swing frame; a limiting block is arranged on the isolation operation shaft, and a limiting part used for limiting and matching with the limiting block and a pushing matching part used for pushing and matching with the pushing convex part are arranged on the two swinging frames; the frame body is also provided with an operation hole interlocking plate in a swinging way, the operation hole interlocking plate is provided with an operation hole and a connecting rod connected with the movable plate, the isolation operation shaft and the grounding operation shaft are arranged at intervals in the swinging direction of the operation hole interlocking plate, and the operation hole is aligned with the isolation operation shaft or the grounding operation shaft when the operation hole interlocking plate swings.
The beneficial effects are that: according to the utility model, the operation hole interlocking plate is arranged, so that the isolation operation shaft and the grounding operation shaft are blocked by the operation hole interlocking plate when the operation mechanism is operated in a non-manual mode, and the operation handle cannot be inserted. When the operation hole interlocking plate is pushed to one side, the grounding operation shaft is exposed, grounding operation can be performed, and meanwhile, the isolation operation shaft keeps a shielding state. When the operation hole interlocking plate is pushed to the other side, the isolation operation shaft is exposed, closing operation can be performed, and the grounding operation shaft keeps in a shielding state. Moreover, through the spacing cooperation of spacing portion and stopper, only can operate ground connection operating axle and rotate to the ground connection switching-on by the ground connection switching-on or rotate to the ground connection switching-on by the ground connection switching-on, only can operate simultaneously and keep apart the operating axle and rotate to the isolation switching-on or rotate to the isolation switching-on by the isolation switching-on to the accurate station switch to the isolation station. In addition, the operating mechanism occupies smaller size in the axial direction of the operating shaft, so that the whole size of the operating mechanism is smaller, and the miniaturization of the direct-acting isolating switch is facilitated.
As a further improvement, the first swing frame and the second swing frame each comprise an arc-shaped arm and an L-shaped arm, the pushing matching part and the limiting part are arranged on the arc-shaped arm, the L-shaped arm comprises a horizontal arm section and a vertical arm section, one end, away from the vertical arm section, of the horizontal arm section is fixed on the arc-shaped arm, and one end, away from the horizontal arm section, of the vertical arm section is connected with a corresponding tension spring.
The beneficial effects are that: by the design, the tension spring is far away from the swing axis of the swing frame, namely the force arm is long, and the swing frame can be driven to rotate by applying small acting force.
As a further improvement, the end of the arc arm forms the limit part.
The beneficial effects are that: the design does not need to separately process the limiting part, and the processing technology is simplified.
As a further improvement, the end of the horizontal arm section remote from the vertical arm section is detachably fixed to the arc-shaped arm.
The beneficial effects are that: the design is convenient for the arc arm and the L-shaped arm to be independently processed, and is beneficial to the assembly of an operating mechanism.
As a further improvement, the first return spring and the second return spring are both return tension springs.
The beneficial effects are that: the reset tension spring is convenient to be arranged between the frame body and the corresponding swinging frame.
As a further improvement, the pushing engagement portion is a rolling body.
The beneficial effects are that: by the design, friction force can be reduced, and the brake release limiting release cam is facilitated to rotate.
As a further improvement, the first swing frame and the second swing frame are both fixedly provided with pin shafts, and the rolling bodies are shaft sleeves sleeved on the pin shafts.
The beneficial effects are that: by the design, the force applied to the shaft sleeve acts on the pin shaft, so that the shaft sleeve is ensured to be uniformly stressed when rotating, and deflection cannot occur.
As a further improvement, the connecting rod is a manual deflector rod, and the operation hole interlocking plate is also provided with a limiting pin connected with the movable plate, and the limiting pin and the manual deflector rod are arranged in parallel.
The beneficial effects are that: the design ensures the stability of the movable plate.
As a further improvement, the operation hole interlocking plate is also provided with an arc-shaped positioning hole, the transmission shaft penetrates through the positioning hole, and the operation hole is aligned with the isolation operation shaft and the grounding operation shaft respectively when the transmission shaft is in contact with the hole walls at the two ends of the positioning hole respectively.
Drawings
FIG. 1 is a schematic view of a three-position operating mechanism of the present utility model;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a schematic view of the structure of the interior of the three-position operating mechanism frame of FIG. 1;
FIG. 4 is a schematic view of the first swing frame and the second swing frame in FIG. 3;
FIG. 5 is a schematic view of the manual lever of FIG. 3 being moved to the right;
fig. 6 is a schematic structural view of the pushing boss pushing sleeve in fig. 5.
In the figure: 11. a frame body; 12. a main shaft; 13. a bearing; 14. positioning holes; 15. a transmission shaft; 16. an operation hole; 17. a manual deflector rod; 18. a limiting pin; 19. an operation hole interlocking plate; 20. a first arcuate arm; 21. a first pin; 22. pushing the convex part; 23. avoiding the concave part; 24. a brake-separating limit release cam; 25. a first return spring; 26. a first limit part; 27. a first limit fitting portion; 28. a first L-shaped arm; 29. a first tension spring; 30. a limiting block; 31. a movable plate; 32. isolating the operating shaft; 33. a second tension spring; 34. a ground operation shaft; 35. a second L-shaped arm; 36. a second limit fitting portion; 37. a second limit part; 38. a second return spring; 39. a second arcuate arm; 40. a second pin; 41. a first sleeve; 42. a second sleeve; 43. a first swing frame; 44. and a second swing frame.
Detailed Description
The features and capabilities of the present utility model are described in further detail below in connection with the examples.
Example 1 of the three-position operating mechanism of the present utility model:
as shown in fig. 1 to 6, the three-position operating mechanism includes a frame 11, and a main shaft 12, a transmission shaft 15, an isolation operating shaft 32, and a ground operating shaft 34 are rotatably mounted on the frame 11; the main shaft 12 is directly above the drive shaft 15, the drive shaft 15 is directly above the isolation operating shaft 32, and the ground operating shaft 34 is on the right side of the isolation operating shaft 32.
As shown in fig. 1 and 2, an operation hole interlocking plate 19 is swingably mounted on the main shaft 12 through a bearing 13, an operation hole 16 and a manual lever 17 are provided on the operation hole interlocking plate 19, an isolation operation shaft 32 and a ground operation shaft 34 are arranged at intervals in the swing direction of the operation hole interlocking plate, and the operation hole 16 is aligned with the isolation operation shaft 32 or the ground operation shaft 34 when the manual lever 17 drives the operation hole interlocking plate 19 to swing.
In this embodiment, the operation hole interlocking plate 19 is provided with an arc-shaped positioning hole 14, the transmission shaft 15 passes through the positioning hole 14, and the operation hole 16 is aligned with the grounding operation shaft 34 and the isolation operation shaft 32 when the transmission shaft 15 contacts with the wall of the left and right end of the positioning hole 14, respectively.
As shown in fig. 3 and 4, the transmission shaft 15 is provided with a brake release limit cam 24, and the brake release limit cam 24 has a pushing convex portion 22 and a recess 23 which are arranged oppositely. The frame 11 is provided with a first swing frame 43 and a second swing frame 44 on the left and right sides of the transmission shaft 15, and a movable plate 31 is arranged below the isolation operation shaft 32.
In this embodiment, the first swinging frame 43 includes a first arc arm 20 and a first L-shaped arm 28, the first arc arm 20 is provided with a first pin shaft 21 and a first limiting portion 26, the first pin shaft 21 is sleeved with a first shaft sleeve 41, the first shaft sleeve 41 is used for pushing and matching with the pushing convex portion 22, and the first shaft sleeve 41 forms a pushing and matching portion. The first L-shaped arm 28 includes a horizontal arm section and a vertical arm section, with the end of the horizontal arm section remote from the vertical arm section being removably secured to the first arcuate arm 20 by screws. A first tension spring 29 is arranged between one end of the vertical arm section far away from the horizontal arm section and the movable plate 31, and a first reset spring 25 is arranged between the frame 11 and the horizontal arm section.
In this embodiment, the second swinging frame 44 includes a second arc arm 39 and a second L-shaped arm 35, the second arc arm 39 is provided with a second pin shaft 40 and a second limiting portion 37, the second pin shaft 40 is sleeved with a second sleeve 42, the second sleeve 42 is used for pushing and matching with the pushing convex portion 22, and the second sleeve 42 forms a pushing and matching portion. The second L-shaped arm 35 includes a horizontal arm section and a vertical arm section, and an end of the horizontal arm section remote from the vertical arm section is detachably fixed to the second arc-shaped arm 39 by a screw. A second tension spring 33 is arranged between one end of the vertical arm section far away from the horizontal arm section and the movable plate 31, and a second reset spring 38 is arranged between the frame 11 and the horizontal arm section.
In this embodiment, the first return spring 25 and the second return spring 38 are both return tension springs.
In this embodiment, a limiting block 30 is fixed on the isolating operation shaft 32, a first limiting and matching portion 27 and a second limiting and matching portion 36 are disposed on the limiting block 30, the first limiting and matching portion 27 is used for limiting and matching with the first limiting and matching portion 26 on the first arc-shaped arm 20, and the second limiting and matching portion 36 is used for limiting and matching with the second limiting and matching portion 37 on the second arc-shaped arm 39.
In this embodiment, the lower end of the first arc arm 20 forms a first limiting portion 26, and the lower end of the second arc arm 39 forms a second limiting portion 37.
As shown in fig. 1 and 3, the manual lever 17 is connected to the movable plate 31 to drive the movable plate 31 to move in the left-right direction; the operation hole interlocking plate 19 is also provided with a limiting pin 18 connected with the movable plate 31, and the limiting pin 18 and the manual deflector 17 are arranged in parallel and move together in an arc-shaped long hole on the frame body 11.
The three-station operating mechanism comprises the following operating processes: the initial state of the three-station operating mechanism is brake opening, and an operating cycle is formed through the operation processes of brake opening, brake closing, brake opening, grounding and brake opening. The following is a detailed description of the present utility model.
As shown in fig. 1 and 2, when the manual lever 17 is shifted rightward, the grounding operation shaft 34 is exposed, and grounding closing and grounding opening operations can be performed; when the manual lever 17 is moved to the left, the isolation operation shaft 32 is exposed, and the isolation closing and isolation opening operations can be performed. When the ground side operation is performed, the ground operation shaft 34 is rotated clockwise, the ground switch is closed, the ground operation shaft 34 is rotated counterclockwise, and the ground switch is opened. When the isolation side operation is performed, the isolation operation shaft 32 is rotated clockwise, the isolation switch is closed, the isolation operation shaft 32 is rotated counterclockwise, and the isolation switch is opened. The isolating operation shaft 32 or the grounding operation shaft 34 needs to rotate 13 circles from the opening position to the closing position or the grounding position.
As shown in fig. 3, when the three-station operating mechanism is in the opening state, the opening limit release cam 24 is arranged vertically; when the operating mechanism performs isolation or grounding operation, the brake separating limit release cam 24 performs intermittent motion under the action of the gearbox, when the grounding operating shaft 34 or the isolating operating shaft 32 rotates for 1 circle, the brake separating limit release cam 24 rotates for 45 degrees, and when the grounding operating shaft 34 or the isolating operating shaft 32 rotates from the second circle to 12 circles, the brake separating limit release cam 24 always keeps at a 45-degree position, and at the moment, the corresponding shaft sleeve can be just pushed to move outwards, so that the limit state of the corresponding limit part is released; when the ground operation shaft 34 or the isolation operation shaft 32 rotates to the 13 th turn, the brake release cam 24 rotates to the 90 ° position, that is, the brake release cam 24 is in the horizontal position as shown in fig. 6, and vice versa. The intermittent movement of the brake release limit cam 24 is realized by the engagement of a complete gear and an incomplete gear, and the working principle thereof is the prior art and is not described herein.
When the three-position operating mechanism is not manually operated, the first swing frame 43 and the second swing frame 44 are both in free positions, as shown in fig. 3. When the manual grounding operation is performed, the manual shift lever 17 is shifted to the right side, the first tension spring 29 is driven to stretch to the right side, the first swinging frame 43 moves to the right under the tension force of the first tension spring 29, the first limiting part 26 at the lower end of the first arc-shaped arm 20 moves downwards to the first limiting matching part 27 at the left side of the limiting block 30, the limiting block 30 is limited to rotate clockwise and the limiting block 30 is not influenced to rotate anticlockwise, and meanwhile, the first shaft sleeve 41 is positioned in the avoidance concave part 23, as shown in fig. 5. Thereafter, the operation handle is inserted into the operation hole 16 so that the operation hole interlocking plate 19 is held at this position, thereby disabling the first swing frame 43 from being reset, and maintaining the position shown in fig. 5. When the ground operation shaft 34 is rotated counterclockwise, the isolation operation shaft 32 and the limiting block 30 are driven by the internal gear of the mechanism to rotate clockwise, and the first limiting part 26 limits the limiting block 30 to rotate clockwise at this time, so that the effect of manual ground brake-separating limiting is achieved. When the ground operation shaft 34 is rotated clockwise, the isolation operation shaft 32 is rotated counterclockwise by the transmission of the internal gear of the mechanism, and the opening-ground operation process can be realized. During the grounding operation of the mechanism or when the grounding is in place, as the brake-separating limit release cam 24 rotates and displaces, the pushing convex part 22 pushes the first shaft sleeve 41 to move outwards, so that the limit state of the first limit part 26 is released, and as shown in fig. 6, the grounding operation shaft 34 can rotate anticlockwise, so that the grounding-brake-separating operation process is realized.
The operation process of opening-closing-opening of the isolation side of the three-station operating mechanism is similar to that of the grounding side, and the principle is the same, so that the detailed description is omitted.
Example 2 of the three-position operating mechanism of the present utility model:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the first swing frame and the second swing frame each include an arc-shaped arm and an L-shaped arm, and the arc-shaped arm and the L-shaped arm are in a split structure. In this embodiment, the arc arm and the L-shaped arm are of an integral structure.
Example 3 of the three-position operating mechanism of the present utility model:
the present embodiment differs from embodiment 1 in that in embodiment 1, the end of the arc-shaped arm constitutes a stopper. In this embodiment, the lower end of the arc arm extends downward and is lower than the limit fitting portion, and the inner side of the arc arm protrudes with the limit portion.
Example 4 of the three-position operating mechanism of the present utility model:
the present embodiment differs from embodiment 1 in that in embodiment 1, the end of the horizontal arm section remote from the vertical arm section is fixed to the arc-shaped arm by a screw. In this embodiment, one end of the horizontal arm section, which is far away from the vertical arm section, is welded and fixed on the arc-shaped arm.
Example 5 of the three-position operating mechanism of the present utility model:
the present embodiment differs from embodiment 1 in that in embodiment 1, both the first return spring and the second return spring are return tension springs. In this embodiment, the first return spring and the second return spring are both return torsion springs. In other embodiments, one of the first return spring and the second return spring is a return tension spring and the other is a return torsion spring.
Example 6 of the three-position operating mechanism of the present utility model:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the first swing frame and the second swing frame are both fixed with pin shafts, the rolling bodies are shaft sleeves sleeved on the pin shafts, and the shaft sleeves form the rolling bodies. In this embodiment, rollers are rotatably mounted on the first swing frame and the second swing frame, and the rollers form rolling bodies.
Example 7 of the three-position operating mechanism of the present utility model:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the connecting rod is a manual lever. In this embodiment, the connecting rod is located between the movable plate and the operation hole interlocking plate, and an independent manual lever or manual block is provided on the operation hole interlocking plate.
Embodiments of the direct-acting disconnector of the utility model: in this embodiment, the direct-acting isolating switch includes a switch body and a three-station operating mechanism, and the three-station operating mechanism has the same structure as any one of embodiments 1 to 7 of the three-station operating mechanism, and is not described herein again.
The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The three-station operating mechanism comprises a frame body (11), wherein an isolation operating shaft (32) and a grounding operating shaft (34) are rotatably assembled on the frame body (11), and the three-station operating mechanism is characterized in that a transmission shaft (15) is rotatably assembled above the isolation operating shaft (32) on the frame body (11), a brake separating limit release cam (24) is arranged on the transmission shaft (15), and the brake separating limit release cam (24) is provided with a pushing convex part (22) and a avoiding concave part (23) which are oppositely arranged; a first swing frame (43) and a second swing frame (44) are also arranged on the two sides of the transmission shaft (15) on the frame body (11) in a swinging way, and a movable plate (31) is arranged below the isolation operation shaft (32); a first tension spring (29) is arranged between the first swing frame (43) and the movable plate (31), and a first reset spring (25) is arranged between the frame body (11) and the first swing frame (43); a second tension spring (33) is arranged between the second swinging frame (44) and the movable plate (31), and a second reset spring (38) is arranged between the frame body (11) and the second swinging frame (44); a limiting block (30) is arranged on the isolation operation shaft (32), and a limiting part for limiting and matching with the limiting block (30) and a pushing matching part for pushing and matching with the pushing convex part (22) are arranged on the two swinging frames; the frame body (11) is also provided with an operation hole interlocking plate (19) in a swinging mode, the operation hole interlocking plate (19) is provided with an operation hole (16) and a connecting rod connected with the movable plate (31), the isolation operation shaft (32) and the grounding operation shaft (34) are arranged at intervals in the swinging direction of the operation hole interlocking plate (19), and the operation hole (16) is aligned with the isolation operation shaft (32) or the grounding operation shaft (34) when the operation hole interlocking plate (19) swings.
2. The three-position operating mechanism according to claim 1, wherein the first swing frame (43) and the second swing frame (44) each comprise an arc-shaped arm and an L-shaped arm, the pushing engagement portion and the limiting portion are both disposed on the arc-shaped arm, the L-shaped arm comprises a horizontal arm section and a vertical arm section, one end of the horizontal arm section away from the vertical arm section is fixed on the arc-shaped arm, and one end of the vertical arm section away from the horizontal arm section is connected with a corresponding tension spring.
3. The three-position operating mechanism of claim 2, wherein the end of the arcuate arm forms the limit stop.
4. A three-position operating mechanism according to claim 2 or claim 3, wherein the end of the horizontal arm section remote from the vertical arm section is detachably secured to the arcuate arm.
5. A three-position operating mechanism according to claim 2 or 3, characterized in that the first return spring (25) and the second return spring (38) are both return tension springs.
6. A three-position operating mechanism according to claim 1, 2 or 3, wherein the push engagement portion is a rolling element.
7. The three-position operating mechanism according to claim 6, wherein the first swing frame (43) and the second swing frame (44) are both fixed with pin shafts, and the rolling bodies are shaft sleeves sleeved on the pin shafts.
8. A three-position operating mechanism according to claim 1, 2 or 3, characterized in that the connecting rod is a manual deflector rod (17), the operating hole interlocking plate (19) is further provided with a limiting pin (18) connected with the movable plate (31), and the limiting pin (18) is arranged in parallel with the manual deflector rod (17).
9. A three-position operating mechanism according to claim 1, 2 or 3, characterized in that the operating hole interlocking plate (19) is further provided with an arc-shaped positioning hole (14), the transmission shaft (15) passes through the positioning hole (14), and the operating hole (16) is aligned with the isolation operating shaft (32) and the grounding operating shaft (34) when the transmission shaft (15) is respectively contacted with the wall of the two end holes of the positioning hole (14).
10. A direct-acting disconnector comprising a switch body and a three-position operating mechanism, characterized in that the three-position operating mechanism is a three-position operating mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211493959.4A CN116031098A (en) | 2022-11-25 | 2022-11-25 | Three-station operating mechanism and direct-acting isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211493959.4A CN116031098A (en) | 2022-11-25 | 2022-11-25 | Three-station operating mechanism and direct-acting isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116031098A true CN116031098A (en) | 2023-04-28 |
Family
ID=86074881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211493959.4A Pending CN116031098A (en) | 2022-11-25 | 2022-11-25 | Three-station operating mechanism and direct-acting isolating switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN116031098A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117690746A (en) * | 2024-02-02 | 2024-03-12 | 广东正超电气有限公司 | Direct-acting type three-station switch operating mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117690746A (en) * | 2024-02-02 | 2024-03-12 | 广东正超电气有限公司 | Direct-acting type three-station switch operating mechanism |
| CN117690746B (en) * | 2024-02-02 | 2024-04-09 | 广东正超电气有限公司 | Direct-acting type three-station switch operating mechanism |
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