Novel single-spring double-motor wire inlet mechanism

Abstract

The utility model provides a novel single-spring double-motor wire inlet mechanism which comprises a bottom plate and a grounding limiting block, one side of the bottom plate is connected with a main shaft, one side of the main shaft is sleeved with a second main shaft swing arm, the main shaft close to the second main shaft swing arm is sleeved with a first main shaft swing arm, and one side of the second main shaft swing arm is connected with a grounding transmission piece. One end of the grounding transmission piece is connected with a connecting pin, one side of the connecting pin is connected with a first grounding operation shaft swing arm, a grounding operation shaft penetrates through the first grounding operation shaft swing arm, and one side, close to the first grounding operation shaft swing arm, of the grounding operation shaft is sleeved with a second grounding operation shaft swing arm. One side of the grounding operation shaft far away from the first grounding operation shaft swing arm is sleeved with a grounding interlocking crank arm; and a first pressure spring bumping post is arranged in the second grounding operation shaft swing arm. According to the utility model, accurate switching-on and switching-off operation of the main loop and the grounding loop is realized through the permanent magnet motor with the speed reducer, and the problems of high manual operation intensity and remote operation are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of inflatable cabinets, in particular to a novel single-spring dual-motor line-in mechanism. Background Art

[0002] The gas-filled cabinet is a new generation of switchgear. The main switch can use either a permanent magnet mechanism vacuum circuit breaker or a spring mechanism vacuum circuit breaker. The whole cabinet uses air insulation combined with sulfur hexafluoride gas compartments. It is compact and expandable, and is suitable for power distribution automation. The gas-filled cabinet is suitable for small secondary substations, switchgear, box-type substations, residential areas, industrial and mining enterprises, and large shopping malls in the power system. It is especially suitable for airports, subways, railways and other places with high electricity requirements. The existing new 12kVSF6 gas-filled cabinet spring operating mechanism has a relatively complex structure, many parts, and the strength of the mechanism sheet metal is not enough and it is easy to deform. The manufacturing cost is high, which is not conducive to market competition. The grounding loop requires staff to operate on site.

[0003] The grounding loop of the single compression spring operating mechanism of the new 12kVSF6 inflatable cabinet currently on the market cannot realize remote control of the switch in the background.

[0004] Therefore, we made improvements and proposed a new single-spring dual-motor wire feeding mechanism. Utility Model Content

[0005] The purpose of the utility model is to design a grounding loop that can also be operated electrically to realize a remote operation function, in view of the fact that the grounding operation of the existing operating mechanism is all manually operated on site by personnel, which is not conducive to the intelligent operation requirements of the power grid.

[0006] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0007] A novel single-spring dual-motor wire feeding mechanism is provided to improve the above problems.

[0008] The utility model is specifically as follows:

[0009] The invention comprises a base plate and a grounding limit block, wherein one side of the base plate is connected to a main shaft, one side of the main shaft is sleeved with a second main shaft swing arm, the main shaft close to the second main shaft swing arm is sleeved with the first main shaft swing arm, one side of the second main shaft swing arm is connected to a grounding transmission sheet, one end of the grounding transmission sheet is connected to a connecting pin, one side of the connecting pin is connected to the first grounding operating shaft swing arm, a grounding operating shaft passes through the first grounding operating shaft swing arm, one side of the grounding operating shaft close to the first grounding operating shaft swing arm is sleeved with the second grounding operating shaft swing arm, one side of the grounding operating shaft away from the first grounding operating shaft swing arm is sleeved with a grounding interlocking crank arm, and a grounding interlocking crank arm is arranged inside the second grounding operating shaft swing arm. A first compression spring stop column; a grounding block is provided on one side of the second grounding operating shaft swing arm, a partition pillar is provided on one side of the bottom plate, an upper plate is provided on the partition pillar away from the bottom plate, a main circuit transmission sheet is connected to one side of the second main shaft swing arm, one end of the main circuit transmission sheet is connected to the first main circuit operating shaft swing arm, a main circuit limiting block is connected to one side of the first main circuit operating shaft swing arm, a main circuit operating shaft is provided on one side of the bottom plate close to the first main circuit operating shaft swing arm, and the main circuit operating shaft close to the main circuit limiting block is sleeved with the second main circuit operating shaft swing arm; a door lock bracket is fixed on one side of the upper plate close to the grounding interlocking crank arm, and a door lock bracket is provided on one side There is a door-to-ground interlocking rod, one side of which is sleeved with a door rod compression spring, an operating hole baffle pillar is fixed to one side of the upper plate close to the door-to-ground interlocking rod, one side of the operating hole baffle pillar is sleeved with an operating hole interlocking plate, a main circuit interlocking crank arm is sleeved on the side of the main circuit operating shaft away from the second main circuit operating shaft swing arm, an operating hole baffle interlocking plate is connected between the main circuit interlocking crank arm and the operating hole interlocking plate; a grounding hole baffle is connected to one side of the door-to-ground interlocking rod close to the door rod compression spring, a second compression spring stop column is provided on one side of the second main circuit operating shaft swing arm, a first compression spring guide rod is connected on one side of the second compression spring stop column, and a first compression spring stop is provided on one side of the first compression spring guide rod A piece, a second compression spring guide rod is connected between the first compression spring guide rod and the first compression spring stop column close to the first compression spring stop plate, a second compression spring stop plate is connected to one side of the second compression spring guide rod, a main compression spring of the mechanism is installed between the second compression spring stop plate and the first compression spring stop plate, a grounding limit block is connected to one side of the second grounding operating shaft swing arm, a positioning tension spring is installed on one side of the grounding limit block and the main circuit limit block, and also includes a controller installed on the inflatable cabinet, two groups of permanent magnet motors with reducers are arranged on the bottom plate, and the output ends of the two groups of permanent magnet motors with reducers are respectively fixedly connected to the main circuit operating shaft and the grounding operating shaft, and the controller is connected to the permanent magnet motor signal with the reducer.

[0010] As a preferred technical solution of the utility model, the center of the main shaft, the center of the second main shaft swing arm, the center of the first main shaft swing arm and the center of the status indicator plate are on the same straight line, and a rotating structure is formed between the main shaft, the second main shaft swing arm, the first main shaft swing arm and the status indicator plate, and a linkage mechanism is formed between the second main shaft swing arm, the grounding transmission plate, the connecting pin, the main circuit transmission plate and the first main circuit operating shaft swing arm.

[0011] As a preferred technical solution of the utility model, a linkage mechanism is formed between the first main shaft swing arm, the main circuit limit block, the grounding limit block, the second main circuit operating shaft swing arm and the second grounding operating shaft swing arm, and a rotating structure is formed between the second main circuit operating shaft swing arm and the main circuit operating shaft, and a rotating structure is formed between the second grounding operating shaft swing arm and the grounding operating shaft.

[0012] As a preferred technical solution of the utility model, two groups of door lock brackets are provided, and the two groups of door lock brackets are provided on both sides of the door-to-ground interlocking rod, and the door-to-ground interlocking rod and the grounding hole baffle are slidably connected, and a telescopic structure is formed between the grounding hole baffle and the door lock bracket with respect to the door rod compression spring.

[0013] As a preferred technical solution of the utility model, two groups of operating hole baffle interlocking plates are provided, and a linkage mechanism is formed between the operating hole baffle interlocking plates, the grounding interlocking crank arm, the operating hole interlocking plates and the main circuit interlocking crank arm, and a rotating structure is formed between the main circuit interlocking crank arm and the grounding operating shaft, and a rotating structure is formed between the main circuit interlocking crank arm and the main circuit operating shaft.

[0014] As a preferred technical solution of the utility model, the first compression spring guide rod and the second compression spring guide rod are both cylindrical, and a telescopic structure is formed between the first compression spring guide rod and the second compression spring guide rod with respect to the main compression spring of the mechanism.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the solution of the utility model:

[0017] 1. When the main circuit operating shaft is controlled by the permanent magnet motor with reducer to rotate 49 degrees clockwise, the center point of the first compression spring stop column, the center point of the main circuit operating shaft and the center point of the second compression spring stop column form a straight line; at this time, the main compression spring of the mechanism is under maximum pressure. When the main circuit operating shaft continues to rotate clockwise, the center point of the first compression spring stop column passes the critical point, and the main compression spring of the mechanism releases energy instantly, driving the main circuit operating shaft to rotate rapidly clockwise. At the same time, under the transmission of the first main circuit operating shaft swing arm, the second main circuit operating shaft swing arm and the main circuit transmission sheet, The main shaft rotates clockwise in an instant, driving the closing action of the switch at the same time; the reverse operation can realize the main circuit opening operation, and the permanent magnet motor with a reducer controls the main circuit operating shaft to rotate 88 degrees during the closing operation, and drives the main circuit interlocking arm to rotate 88 degrees clockwise, and the operation hole baffle interlocking plate moves at the same time to push the operation hole interlocking plate to rotate counterclockwise; the baffle at the lower end of the operation hole interlocking plate is just moved to the center point of the grounding operation hole to block the grounding operation shaft; the five protection requirements of the switch cannot be operated on the grounding circuit when the main circuit is closed.

[0018] 2. When the permanent magnet motor with reducer is controlled by the controller to drive the grounding operating shaft to rotate 39 degrees counterclockwise, the center point of the second compression spring stop column, the center point of the grounding operating shaft and the center point of the first compression spring stop column form a straight line. At this time, the main compression spring of the mechanism is under maximum pressure. When the permanent magnet motor with reducer drives the grounding operating shaft to continue to rotate counterclockwise, the center point of the second compression spring stop column passes the critical point, and the main compression spring of the mechanism releases energy instantly, driving the grounding operating shaft to rotate counterclockwise rapidly. At the same time, the first grounding operating shaft swing arm, the second grounding operating shaft swing arm and Under the drive of the grounding transmission plate, the main shaft rotates counterclockwise in an instant, and the reverse operation can realize the grounding tripping operation; during the grounding operation process, the permanent magnet motor with a reducer drives the grounding operating shaft to rotate 82 degrees counterclockwise, and at the same time drives the grounding interlocking arm to rotate 82 degrees counterclockwise, and the operation hole baffle interlocking plate moves at the same time to push the operation hole interlocking plate to rotate clockwise, and the upper baffle of the operation hole interlocking plate is moved to the center point of the main circuit operation hole to block the main circuit operation shaft, thereby realizing the five-protection requirements that the main circuit cannot be operated when the switch is in the grounded state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model when the main circuit stores energy to the maximum state;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the state structure of the interlocking baffle of the operating hole when the utility model is grounded and closed;

[0023] Figure 5 This is a schematic diagram of the state structure of the interlocking baffle of the operating hole when the main circuit of the utility model is closed;

[0024] Figure 6 A side view schematic diagram of the utility model;

[0025] Figure 7 This is a connection diagram of a permanent magnet motor with a reducer according to the utility model.

[0026] Indicated in the figure:

[0027] 1. Bottom plate; 2. Spindle; 3. First spindle swing arm; 4. Status indicator plate; 5. Grounding transmission plate; 6. Connecting pin; 7. First grounding operating shaft swing arm; 8. Grounding operating shaft; 9. Grounding interlocking crank arm; 10. First compression spring stop column; 11. Grounding stop block; 12. Upper plate; 13. Main circuit transmission plate; 14. First main circuit operating shaft swing arm; 15. Main circuit limit block; 16. Second main circuit operating shaft swing arm; 17. Main circuit operating shaft; 18. Partition support pillar; 19. Door lock bracket; 20. Door-to-ground interlocking rod; 21. Door rod compression spring; 22. Operating hole interlocking plate; 23. Operating hole baffle support pillar; 24. Operating hole baffle interlocking plate; 25. Main circuit interlocking crank arm; 26. Grounding hole baffle; 27. Second compression spring stop column; 28. First compression spring guide rod; 29. ​​First compression spring baffle; 30. Mechanism main compression spring; 31. Second compression spring guide rod; 32. Second compression spring baffle; 33. Positioning tension spring; 34. Second spindle swing arm; 35. Second grounding operating shaft swing arm; 36. Grounding limit block; 37. Controller; 38. Permanent magnet motor with reducer. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0029] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, this embodiment proposes a novel single-spring dual-motor line feeding mechanism, including a base plate 1 and a grounding limit block 36, a main shaft 2 is connected to one side of the base plate 1, a second main shaft swing arm 34 is sleeved on one side of the main shaft 2, a first main shaft swing arm 3 is sleeved on the main shaft 2 close to the second main shaft swing arm 34, a grounding transmission plate 5 is connected to one side of the second main shaft swing arm 34, a connecting pin 6 is connected to one end of the grounding transmission plate 5, a first grounding operating shaft swing arm 7 is connected to one side of the connecting pin 6, a grounding operating shaft 8 runs through the first grounding operating shaft swing arm 7, a second grounding operating shaft swing arm 35 is sleeved on one side of the grounding operating shaft 8 close to the first grounding operating shaft swing arm 7, a grounding interlocking crank arm 9 is sleeved on one side of the grounding operating shaft 8 away from the first grounding operating shaft swing arm 7, and a grounding transmission plate 5 is connected to one side of the second main shaft swing arm 34. 5 is provided with a first compression spring stop column 10; a grounding stopper 11 is provided on one side of the second grounding operating shaft swing arm 35, a partition support 18 is provided on one side of the bottom plate 1, and an upper plate 12 is provided on the partition support 18 away from the bottom plate 1; a main circuit transmission sheet 13 is connected to one side of the second main shaft swing arm 34, one end of the main circuit transmission sheet 13 is connected to the first main circuit operating shaft swing arm 14, and a main circuit limit block 15 is connected to one side of the first main circuit operating shaft swing arm 14; a main circuit operating shaft 17 is provided on one side of the bottom plate 1 close to the first main circuit operating shaft swing arm 14, and the main circuit operating shaft 17 close to the main circuit limit block 15 is sleeved with the second main circuit operating shaft swing arm 16; a door lock bracket 19 is fixed on one side of the upper plate 12 close to the grounding interlocking crank arm 9, and a door lock bracket 19 is provided on one side A door-to-ground interlocking rod 20 is arranged, a door rod compression spring 21 is sleeved on one side of the door-to-ground interlocking rod 20, an operating hole baffle support 23 is fixed on one side of the upper plate 12 close to the door-to-ground interlocking rod 20, an operating hole interlocking plate 22 is sleeved on one side of the operating hole baffle support 23, a main circuit interlocking crank arm 25 is sleeved on one side of the main circuit operating shaft 17 away from the second main circuit operating shaft swing arm 16, an operating hole baffle interlocking plate 24 is connected between the main circuit interlocking crank arm 25 and the operating hole interlocking plate 22; a grounding hole baffle 26 is connected to one side of the door-to-ground interlocking rod 20 close to the door rod compression spring 21, a second compression spring stop column 27 is arranged on one side of the second main circuit operating shaft swing arm 16, a first compression spring guide rod 28 is connected on one side of the second compression spring stop column 27, and a first compression spring stop sheet 26 is arranged on one side of the first compression spring guide rod 28 9. A second compression spring guide rod 31 is connected between the first compression spring guide rod 28 near the first compression spring baffle 29 and the first compression spring baffle column 10, a second compression spring guide rod 31 is connected to one side of the second compression spring guide rod 31, a mechanism main compression spring 30 is installed between the second compression spring baffle 32 and the first compression spring baffle 29, a grounding limit block 36 is connected to one side of the second grounding operating shaft swing arm 35, a positioning tension spring 33 is installed on one side of the grounding limit block 36 and the main circuit limit block 15, characterized in that: it also includes a controller 37 installed on the inflatable cabinet, two sets of permanent magnet motors 38 with reducers are arranged on the base plate 1, and the output ends of the two sets of permanent magnet motors 38 with reducers are fixedly connected to the main shaft 2 and the grounding operating shaft 8 respectively, and the controller 37 is connected to the signal of the permanent magnet motor 38 with reducer.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the center of the main shaft 2, the center of the second main shaft swing arm 34, the center of the first main shaft swing arm 3 and the center of the status indication plate 4 are on the same straight line, and a rotating structure is formed between the main shaft 2, the second main shaft swing arm 34, the first main shaft swing arm 3 and the status indication plate 4, and a linkage mechanism is formed between the second main shaft swing arm 34, the grounding transmission plate 5, the connecting pin 6, the main circuit transmission plate 13 and the first main circuit operating shaft swing arm 14.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a linkage mechanism is formed between the first main shaft swing arm 3, the main circuit limit block 15, the grounding limit block 36, the second main circuit operating shaft swing arm 16 and the second grounding operating shaft swing arm 35, and a rotating structure is formed between the second main circuit operating shaft swing arm 16 and the main circuit operating shaft 17, and a rotating structure is formed between the second grounding operating shaft swing arm 35 and the grounding operating shaft 8.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, as a preferred embodiment, two groups of door lock brackets 19 are provided, and the two groups of door lock brackets 19 are provided on both sides of the door-to-ground interlock rod 20, and the door-to-ground interlock rod 20 is slidably connected to the grounding hole baffle 26, and a telescopic structure is formed between the grounding hole baffle 26 and the door lock bracket 19 with respect to the door rod compression spring 21.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, two groups of operating hole baffle interlocking plates 24 are provided, and a linkage mechanism is formed between the operating hole baffle interlocking plates 24, the grounding interlocking crank arm 9, the operating hole interlocking plates 22 and the main circuit interlocking crank arm 25, and a rotating structure is formed between the main circuit interlocking crank arm 25 and the grounding operating shaft 8, and a rotating structure is formed between the main circuit interlocking crank arm 25 and the main circuit operating shaft 17. When the main circuit operating shaft 17 rotates, the main circuit interlocking crank arm 25 can be driven to move, and when the main circuit interlocking crank arm 25 moves, the operating hole baffle interlocking plate 24 can be driven to move, and when the operating hole baffle interlocking plate 24 moves, it can drive the operating hole interlocking plate 22, and when the operating hole interlocking plate 22 moves, the grounding interlocking crank arm 9 can be driven to move through the operating hole baffle interlocking plate 24.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the first compression spring guide rod 28 and the second compression spring guide rod 31 are both cylindrical, and the first compression spring guide rod 28 and the second compression spring guide rod 31 form a telescopic structure with respect to the main compression spring 30 of the mechanism. When the second main circuit operating shaft swing arm 16 and the second grounding operating shaft swing arm 35 move, the first compression spring stop column 10 and the second compression spring stop column 27 can be driven to move. When the first compression spring stop column 10 and the second compression spring stop column 27 move, the first compression spring guide rod 28 and the second compression spring guide rod 31 can be driven to move. The first compression spring guide rod 28 and the second compression spring guide rod 31 can be telescopic through the main compression spring 30 of the mechanism, a first compression spring stop sheet 29 is provided on one side of the first compression spring guide rod 28, a second compression spring guide rod 31 is connected between the first compression spring guide rod 28 and the first compression spring stop column 10 near the first compression spring stop sheet 29, a second compression spring stop sheet 32 ​​is connected to one side of the second compression spring guide rod 31, and the second compression spring stop sheet 32 A main compression spring 30 is installed between the first compression spring baffle 29 , a grounding limit block 36 is connected to one side of the second grounding operating shaft swing arm 35 , and a positioning tension spring 33 is installed on one side of the grounding limit block 36 and the main circuit limit block 15 .

[0038] Working principle: When the main circuit is closed and the permanent magnet motor 38 with a reducer is used to control the main circuit operating shaft 17 to rotate 49 degrees clockwise, the center point of the first compression spring stop column 10, the center point of the main circuit operating shaft 17 and the center point of the second compression spring stop column 27 form a three-point straight line. In the process of the main circuit operating shaft 17 reaching the three-point straight line, the main shaft 2 cannot rotate prematurely due to the friction of the transmission parts. Therefore, a main circuit limit block 15 is added in this process. When the main circuit operating shaft 17 is started to the three-point straight line position, if there is friction causing the main shaft 2 to rotate, the second main shaft swing arm 34 moves clockwise, and the protrusion at the upper end of the second main shaft swing arm 34 will be blocked by the lower end protrusion of the main circuit limit block, and at the same time, it will push the main circuit limit block to rotate counterclockwise. The upper end protrusion of the main circuit limit block 15 is blocked by the outer arc of the second main circuit operating shaft swing arm 16. Therefore, the main shaft 2 cannot rotate prematurely when the main circuit operating shaft 17 is started to the three-point straight line position. At this time, when the main compression spring 30 of the mechanism is under maximum pressure, when the main circuit operating shaft 17 continues to rotate clockwise, the center point of the first compression spring blocking column 10 passes the critical point, and the main compression spring 30 of the mechanism instantly releases energy, driving the main circuit operating shaft 17 to rotate rapidly clockwise. At the same time, under the transmission of the first main circuit operating shaft swing arm, the second main circuit operating shaft swing arm 16 and the main circuit transmission plate 13, the main shaft 2 rotates clockwise in an instant, and at the same time drives the closing action of the switch; the reverse operation can realize the main circuit opening operation, and the permanent magnet motor 38 with a reducer controls the main circuit operating shaft 17 to rotate 88 degrees during the closing operation, and at the same time drives the main circuit interlocking crank arm 25 to rotate 88 degrees clockwise, and the operating hole baffle interlocking plate 24 moves at the same time to push the operating hole interlocking plate 22 to rotate counterclockwise; the baffle at the lower end of the operating hole interlocking plate 22 just moves to the center point of the grounding operating hole to block the grounding operating shaft 8; the five protection requirements that the switch cannot operate the grounding circuit when the main circuit is closed are realized;

[0039] When operating the grounding switch, the permanent magnet motor 38 with a reducer is controlled by the controller 37 to drive the grounding operation shaft 8 to rotate 39 degrees counterclockwise. The center point of the second compression spring stop column 27, the center point of the grounding operation shaft 8 and the center point of the first compression spring stop column 10 form a straight line. When the grounding operation shaft 8 reaches the three-point straight line counterclockwise, the main shaft 2 cannot rotate prematurely due to the friction of the transmission parts. Therefore, a grounding limit block 36 is added in this process. When the grounding operation shaft 8 starts to reach the three-point straight line position, if there is friction causing the main shaft 2 to rotate, the second main shaft swing arm 34 moves counterclockwise, and the protrusion at the lower end of the second main shaft swing arm 34 will be blocked by the protrusion at the upper end of the grounding limit block 36. At the same time, the grounding limit block 36 will be pushed to rotate clockwise, and the lower end protrusion of the grounding limit block 36 is blocked by the outer arc of the second grounding operation shaft swing arm 35, so that the main shaft 2 cannot rotate in advance during the process of the grounding operation shaft 8 starting to the three-point straight line position. At this time, the main compression spring 30 of the mechanism is under the maximum pressure. When the permanent magnet motor 38 with a reducer drives the grounding operation shaft 8 to continue to rotate counterclockwise, the center point of the second compression spring stop column 27 passes the critical point, and the main compression spring 30 of the mechanism releases energy instantly, driving the grounding operation shaft 8 to rotate rapidly counterclockwise. At the same time, under the transmission of the first grounding operation shaft swing arm 7, the second grounding operation shaft swing arm 35 and the grounding transmission sheet 5, the main shaft 2 rotates counterclockwise instantly, and drives the grounding action of the switch at the same time. Reverse operation can realize grounding and opening operation; during the grounding operation, the permanent magnet motor 38 with a reducer drives the grounding operation shaft 8 to rotate 82 degrees counterclockwise, and at the same time drives the grounding interlocking arm 9 to rotate 82 degrees counterclockwise, and the operation hole baffle interlocking plate 24 moves at the same time to push the operation hole interlocking plate 22 to rotate clockwise, and the upper end baffle of the operation hole interlocking plate 22 just moves to the center point of the main circuit operation hole to block the main circuit operation shaft 17, so as to realize the five-protection requirements that the main circuit cannot be operated when the switch is in the grounded state;

[0040] After the grounding interlocking crank arm 9 rotates 82 degrees counterclockwise, the grounding interlocking crank arm 9 is separated from the grounding hole baffle 26 and does not press the grounding hole baffle 26. When the cable room door is opened, it moves upward under the action of the door rod compression spring 21 to block the grounding operation hole. The five-protection requirement that the mechanism cannot be operated when the cable room is open is achieved; when the cable room door is closed, the gravity of the cable room door is greater than the elastic force of the door rod compression spring 21, and under the action of gravity, the door grounding interlocking rod 20 is pulled downward. At the same time, the grounding hole baffle 26 returns to its original position; the grounding circuit can be operated. When the grounding switch is operated to open, there is a relatively large resistance between the switch moving contact and the grounding contact, so there is no need to set an advance motion limit device during the separation process. The content not described in detail in this description belongs to the prior art known to professional and technical personnel in this field.

[0041] All technical features in this embodiment can be freely combined according to actual needs.

[0042] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A novel single-spring dual-motor line feeding mechanism, comprising a base plate (1) and a grounding limit block (36), wherein one side of the base plate (1) is connected to a main shaft (2), one side of the main shaft (2) is sleeved with a second main shaft swing arm (34), the main shaft (2) close to the second main shaft swing arm (34) is sleeved with a first main shaft swing arm (3), one side of the second main shaft swing arm (34) is connected to a grounding transmission sheet (5), one end of the grounding transmission sheet (5) is connected to a connecting pin (6), one side of the connecting pin (6) is connected to a first grounding operating shaft swing arm (7), and the first grounding operating shaft swing arm (7) has a grounding member extending therethrough. An operating shaft (8), a second grounding operating shaft swing arm (35) is sleeved on one side of the grounding operating shaft (8) close to the first grounding operating shaft swing arm (7), a grounding interlocking crank arm (9) is sleeved on one side of the grounding operating shaft (8) away from the first grounding operating shaft swing arm (7), a first compression spring stop column (10) is arranged inside the second grounding operating shaft swing arm (35); a grounding stop block (11) is arranged on one side of the second grounding operating shaft swing arm (35), a partition support (18) is arranged on one side of the bottom plate (1), an upper plate (12) is arranged on the partition support (18) away from the bottom plate (1), and the second One side of the main shaft swing arm (34) is connected to a main circuit transmission sheet (13), one end of the main circuit transmission sheet (13) is connected to a first main circuit operating shaft swing arm (14), one side of the first main circuit operating shaft swing arm (14) is connected to a main circuit limit block (15), a main circuit operating shaft (17) is arranged on a side of the bottom plate (1) close to the first main circuit operating shaft swing arm (14), and a second main circuit operating shaft swing arm (16) is sleeved on the main circuit operating shaft (17) close to the main circuit limit block (15); a door lock bracket (19) is fixed to a side of the upper plate (12) close to the ground interlocking crank arm (9) A door-to-ground interlocking rod (20) is provided on one side of the door lock bracket (19), a door rod compression spring (21) is sleeved on one side of the door-to-ground interlocking rod (20), an operation hole baffle support (23) is fixed on one side of the upper plate (12) close to the door-to-ground interlocking rod (20), an operation hole interlocking plate (22) is sleeved on one side of the operation hole baffle support (23), a main circuit interlocking crank arm (25) is sleeved on one side of the main circuit operating shaft (17) away from the second main circuit operating shaft swing arm (16), and an operation hole baffle interlocking plate (24) is connected between the main circuit interlocking crank arm (25) and the operation hole interlocking plate (22);A grounding hole baffle (26) is connected to one side of the door-to-ground interlocking rod (20) near the door rod compression spring (21); a second compression spring baffle column (27) is provided on one side of the second main circuit operating shaft swing arm (16); a first compression spring guide rod (28) is connected to one side of the second compression spring baffle column (27); a first compression spring baffle plate (29) is provided on one side of the first compression spring guide rod (28); a second compression spring guide rod (31) is connected between the first compression spring guide rod (28) and the first compression spring baffle column (10) near the first compression spring baffle plate (29); a second compression spring guide rod (31) is connected to one side of the second compression spring guide rod (31); a mechanism main compression spring (30) is installed between the second compression spring baffle plate (32) and the first compression spring baffle plate (29); a grounding limit block (36) is connected to one side of the second grounding operating shaft swing arm (35); a positioning tension spring (33) is installed on one side of the grounding limit block (36) and the main circuit limit block (15); and the invention is characterized in that: It also includes a controller (37) installed on the inflatable cabinet, two groups of permanent magnet motors (38) with reducers are arranged on the base plate (1), and the output ends of the two groups of permanent magnet motors (38) with reducers are fixedly connected to the main circuit operating shaft (17) and the grounding operating shaft (8) respectively, and the controller (37) is signal-connected to the permanent magnet motors (38) with reducers.

2. The novel single-spring dual-motor wire feeding mechanism according to claim 1 is characterized in that: The center of the main shaft (2), the center of the second main shaft swing arm (34), the center of the first main shaft swing arm (3) and the center of the status indicator plate (4) are on the same straight line, and a rotating structure is formed between the main shaft (2), the second main shaft swing arm (34), the first main shaft swing arm (3) and the status indicator plate (4), and a linkage mechanism is formed between the second main shaft swing arm (34), the grounding transmission plate (5), the connecting pin (6), the main circuit transmission plate (13) and the first main circuit operating shaft swing arm (14).

3. The novel single-spring dual-motor wire feeding mechanism according to claim 1 is characterized in that: A linkage mechanism is formed between the first main shaft swing arm (3), the main circuit limit block (15), the ground limit block (36), the second main circuit operating shaft swing arm (16) and the second ground operating shaft swing arm (35), a rotation structure is formed between the second main circuit operating shaft swing arm (16) and the main circuit operating shaft (17), and a rotation structure is formed between the second ground operating shaft swing arm (35) and the ground operating shaft (8).

4. The novel single-spring dual-motor wire feeding mechanism according to claim 1 is characterized in that: The door lock bracket (19) is provided in two groups, and the two groups of door lock brackets (19) are provided on both sides of the door-ground interlocking rod (20), and the door-ground interlocking rod (20) and the grounding hole baffle (26) are slidably connected, and the grounding hole baffle (26) and the door lock bracket (19) form a telescopic structure with respect to the door rod compression spring (21).

5. The novel single-spring dual-motor wire feeding mechanism according to claim 1 is characterized in that: The operation hole baffle interlocking plates (24) are provided in two groups, and a linkage mechanism is formed between the operation hole baffle interlocking plates (24), the grounding interlocking crank arm (9), the operation hole interlocking plates (22) and the main circuit interlocking crank arm (25), and a rotation structure is formed between the main circuit interlocking crank arm (25) and the grounding operating shaft (8), and a rotation structure is formed between the main circuit interlocking crank arm (25) and the main circuit operating shaft (17).

6. The novel single-spring dual-motor wire feeding mechanism according to claim 1 is characterized in that: The first compression spring guide rod (28) and the second compression spring guide rod (31) are both cylindrical, and a telescopic structure is formed between the first compression spring guide rod (28) and the second compression spring guide rod (31) with respect to the main compression spring (30) of the mechanism.

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