Primary and secondary fused column circuit breaker

Abstract

The application discloses a primary and secondary fused pole circuit breaker and relates to the technical field of power components, which comprises a circuit breaker body, electromagnetic voltage transformers arranged on both sides of the circuit breaker body, a control box fixedly connected to one end of the circuit breaker body, a manual switch installed on the control box, a protection box fixedly connected to the surface of the control box and located outside the manual switch, and a winding box fixedly connected to one side of the protection box. The primary and secondary fused pole circuit breaker is provided with the protection box, the bottom plate and the sealing gasket. When not in use, the protection box, the sealing gasket and the bottom plate can form a sealed box body to protect the manual switch, prevent the erosion of rain and snow, reduce the rust of the manual switch caused by external erosion and other factors, prevent the manual switch from being blocked, and prevent birds from standing on the manual switch to cause the manual switch to be mistakenly started or closed.

Description

Technical Field

[0001] This invention relates to the field of power component technology, specifically to a primary and secondary integrated pole-mounted circuit breaker. Background Technology

[0002] The integrated primary and secondary pole-mounted circuit breaker is a highly integrated power device that deeply integrates traditional primary equipment (mainly performing functions such as power transmission and circuit switching) and secondary equipment (used for measurement, protection, control, and communication). A single unit includes both the circuit breaker itself (the primary equipment) and integrated secondary equipment such as intelligent control, measurement, protection, and communication systems, enabling intelligent management and protection of power distribution lines. However, the operating switches on the integrated primary and secondary pole-mounted circuit breaker are exposed to the elements and are susceptible to corrosion from environmental factors such as rain and snow, leading to blockages in operation. Furthermore, birds may perch on the operating switches, causing them to malfunction or close incorrectly. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a primary and secondary integrated pole-mounted circuit breaker, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a primary and secondary integrated pole-mounted circuit breaker, comprising a circuit breaker body, with electromagnetic voltage transformers installed on both sides of the circuit breaker body, a control box fixedly connected to one end of the circuit breaker body, a manual switch mounted on the control box, a protection box fixedly connected to the surface of the control box and outside the manual switch, a winding box fixedly connected to one side of the protection box, a winding roller rotatably connected inside the winding box, a sealing gasket wound around the outside of the winding roller, and a protective opening inside the protection box. The protective cavity has rail grooves both above and below it. One end of the sealing gasket extends into the protective cavity, and both the upper and lower ends of the sealing gasket extend into the corresponding rail grooves. A drive groove is formed inside the protective cavity on one side of the rail groove. A first liquid bladder is fixedly connected to one side of the drive groove. A push block is fixedly connected to one end of the first liquid bladder. The bottom end of the push block extends into the protective cavity and is fixedly connected to a sealing strip. A sealing plug that mates with the sealing strip is fixedly connected to one side of the protective cavity.

[0005] Optionally, a guide rail is fixedly connected to the lower rear surface of the protective box, a second liquid bladder is fixedly connected to one side of the inner cavity of the guide rail, a positioning block is fixedly connected to one end of the second liquid bladder, a first spring is fixedly connected to the other side of the inner cavity of the guide rail, one end of the first spring is fixedly connected to one side of the positioning block, one end of the positioning block extends to the outside of the guide rail and is fixedly connected to a base plate, and one end of the base plate extends into the inner cavity of the protective box.

[0006] Optionally, a second guide groove is provided on the top of the base plate, and one end of the second guide groove is connected to one end of a rail groove.

[0007] Optionally, a drive box is fixedly connected to the top of the winding box, a mainspring is installed inside the drive box, and the top end of the winding roller extends into the drive box and is connected to the mainspring.

[0008] Optionally, a fixing frame is fixedly connected to one side of the winding box, and an unlocking box is placed inside the fixing frame. Two piston cylinders are fixedly connected to one side of the inner cavity of the unlocking box. A sliding screw is rotatably connected to one side of each piston cylinder. A limit block is threadedly connected to the outer side of each sliding screw. A piston block is fixedly connected to one side of each limit block. One end of each piston block extends into the inner cavity of the piston cylinder and engages with the inner cavity of the piston cylinder. A transmission gear is fixedly sleeved on the outer side of one end of each sliding screw. A hose is fixedly connected to one side of each piston cylinder. One end of each hose extends into the second liquid bladder and the first liquid bladder, respectively. The second liquid bladder engages with the lowermost piston cylinder, and the first liquid bladder engages with the uppermost piston cylinder. One end of one hose extends into the uppermost piston cylinder and is located on the right side of the piston block. One end of the other hose extends into the lowermost piston cylinder and is located on the left side of the piston block.

[0009] Optionally, the inner cavity of the unlocking box is provided with sliding grooves on both sides, and a second spring is fixedly connected to the top of the inner cavity of each sliding groove. A guide block is fixedly connected to one end of each second spring. One end of each guide block extends into the interior of the unlocking box. A hook block is fixedly connected between the two guide blocks. A rack is fixedly connected to one side of each hook block. The rack engages with two transmission gears. The bottom of the unlocking box is provided with a bottom groove that engages with the hook block.

[0010] Optionally, elastic support plates are fixedly connected to both sides of the inner cavity of the unlocking box, and support blocks that cooperate with the elastic support plates are fixedly connected to both sides of the hook block.

[0011] Optionally, rotating shafts are fixedly connected to both sides of the unlocking box. One end of each rotating shaft is rotatably connected to the inner side of the fixing frame and one side of the winding box, respectively. A fixing box is fixedly connected to one side of the fixing frame. One end of one rotating shaft extends into the interior of the fixing box. A worm gear is fixedly sleeved on the outer side of one end of the rotating shaft. A worm gear is rotatably connected inside the fixing box and is driven by the worm gear. One end of the worm gear extends to the outer side of the fixing box and is fixedly connected to a knob.

[0012] This invention provides a primary and secondary integrated pole-mounted circuit breaker, which has the following beneficial effects:

[0013] 1. This primary and secondary integrated pole-mounted circuit breaker, by being equipped with a protective box, base plate and sealing gasket, can form a sealed enclosure when not in use, which protects the manual switch from rain and snow corrosion, reduces the possibility of blockage caused by external corrosion and other factors, and prevents birds from standing on the manual switch, causing the manual switch to be accidentally started or closed.

[0014] 2. This primary and secondary integrated pole-mounted circuit breaker, by being equipped with a winding roller, a base plate, and a sealing strip, can wind the sealing gasket to the outside of the winding roller, and can move the base plate from the bottom of the protection box to the side of the protection box, thereby reducing the occupation of the surrounding space and adapting to various installation environments. Furthermore, opening the front surface and bottom of the protection box also facilitates the operation of the manual switch by the staff.

[0015] 3. This primary and secondary integrated pole-mounted circuit breaker is equipped with an unlocking box, hook block, and rack. By inserting an insulating rod into the unlocking box, the sealing gasket and base plate can be moved. The closing and opening actions of the protection box can be used without other complicated operations. This simplifies the operation process and makes it convenient for staff to operate the manual switch while still protecting it.

[0016] 4. This primary and secondary integrated pole-mounted circuit breaker, by being equipped with a fixed frame, a fixed box, a worm gear, and a rotating shaft, allows for adjustment of the angle of the unlocking box according to the environment near the location where the primary and secondary integrated pole-mounted circuit breaker is installed on the pole. This enables the operator to insert an insulating rod into the unlocking box to drive the protection structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the protective box of the present invention when the front is open but the bottom is closed;

[0018] Figure 2 This is a schematic diagram of the front structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the unlocking box of the present invention;

[0020] Figure 4 This is a side view of the internal structure of the unlocking box of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the guide rail of the present invention;

[0022] Figure 6 This is a schematic diagram of the internal structure of the protective box of the present invention;

[0023] Figure 7 This is a schematic diagram of the internal structure of the fixing box of the present invention;

[0024] Figure 8 This is a schematic diagram of the internal structure of the piston cylinder of the present invention.

[0025] In the diagram: 1. Circuit breaker body; 2. Electromagnetic voltage transformer; 3. Manual switch; 4. Protection box; 5. Base plate; 6. Winding box; 7. Winding roller; 8. Sealing gasket; 9. Drive box; 10. Spring; 11. Rail groove; 12. Drive groove; 13. First liquid bladder; 14. Push block; 15. Sealing strip; 16. Sealing plug; 17. Protection cavity; 18. Second guide groove; 19. Guide rail; 20. Second liquid bladder; 21. Positioning block; 22. 23. First spring; 24. Unlocking box; 25. Control box; 26. Piston cylinder; 27. Sliding screw; 28. Transmission gear; 29. ​​Limit block; 30. Piston block; 31. Hook block; 32. Guide block; 33. Support block; 34. Elastic support plate; 35. Bottom groove; 36. Slide groove; 37. Second spring; 38. Rack; 39. Fixing frame; 40. Fixing box; 41. Rotating shaft; 42. Worm gear; 43. Worm. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Example 1

[0028] Please see Figures 1 to 8 This invention provides a technical solution: a primary and secondary integrated pole-mounted circuit breaker, comprising a circuit breaker body 1, with electromagnetic voltage transformers 2 installed on both sides of the circuit breaker body 1, a control box 24 fixedly connected to one end of the circuit breaker body 1, a manual switch 3 installed on the control box 24, a protection box 4 fixedly connected to the surface of the control box 24 and outside the manual switch 3, a winding box 6 fixedly connected to one side of the protection box 4, a winding roller 7 rotatably connected inside the winding box 6, a sealing gasket 8 wound around the outside of the winding roller 7, a protection cavity 17 opened inside the protection box 4, and a protection cavity 17 opened inside the protection box 4 and outside the protection cavity 17. The protective cavity 17 has rail grooves 11 at both the top and bottom. One end of the sealing gasket 8 extends into the interior of the protective cavity 17. The top and bottom ends of the sealing gasket 8 extend into the corresponding rail grooves 11. The protective box 4 has a drive groove 12 inside and on one side of the rail groove 11. A first liquid bladder 13 is fixedly connected to one side of the inner cavity of the drive groove 12. A push block 14 is fixedly connected to one end of the first liquid bladder 13. The bottom end of the push block 14 extends into the interior of the protective cavity 17 and is fixedly connected to a sealing strip 15. A sealing plug 16 that cooperates with the sealing strip 15 is fixedly connected to one side of the inner cavity of the protective cavity 17.

[0029] The protective box 4 is fixedly connected to a guide rail 19 on the lower rear surface. A second liquid bladder 20 is fixedly connected to one side of the inner cavity of the guide rail 19. A positioning block 21 is fixedly connected to one end of the second liquid bladder 20. A first spring 22 is fixedly connected to the other side of the inner cavity of the guide rail 19. One end of the first spring 22 is fixedly connected to one side of the positioning block 21. One end of the positioning block 21 extends to the outside of the guide rail 19 and is fixedly connected to a base plate 5. One end of the base plate 5 extends into the protective cavity 17, and the bottom of the protective box 4 is sealed by the base plate 5.

[0030] The bottom plate 5 has a second guide groove 18 on its top. One end of the second guide groove 18 is connected to one end of a rail groove 11, so that the sealing gasket 8 can enter the interior of the second guide groove 18 through the rail groove 11.

[0031] The top of the winding box 6 is fixedly connected to the drive box 9, and the drive box 9 is equipped with a spring 10. The top of the winding roller 7 extends into the drive box 9 and is connected to the spring 10. The spring 10 drives the winding roller 7 to reset and rotate, so that the winding roller 7 winds up the sealing gasket 8, thereby pulling the sealing strip 15 and the push block 14 to reset and move through the sealing gasket 8.

[0032] The winding box 6 is fixedly connected to a fixing frame 39 on one side. An unlocking box 23 is placed inside the fixing frame 39. Two piston cylinders 25 are fixedly connected to one side of the inner cavity of the unlocking box 23. A sliding screw 26 is rotatably connected to one side of each piston cylinder 25. A limit block 28 is threaded to the outer side of each sliding screw 26. A piston block 29 is fixedly connected to one side of each limit block 28. One end of each piston block 29 extends into the inner cavity of the piston cylinder 25 and engages with it. A transmission gear 27 is fixedly sleeved on the outer side of one end of each sliding screw 26. A hose 30 is fixedly connected to one side of each piston cylinder 25. One end of each hose 30 extends into the second liquid bladder 20 and the first liquid bladder 13, respectively. In conjunction with the lowermost piston cylinder 25, the first liquid bladder 13 is also in conjunction with the uppermost piston cylinder 25. One end of a flexible hose 30 extends into the uppermost piston cylinder 25, with one end of the flexible hose 30 located on the right side of the piston block 29. The other end of a flexible hose 30 extends into the lowermost piston cylinder 25, with one end of the flexible hose 30 located on the left side of the piston block 29. This allows the liquid inside the first liquid bladder 13 to be drawn out through the lowermost piston cylinder 25 and discharged into the second liquid bladder 20 through the uppermost piston cylinder 25 when the piston moves upward. Conversely, the liquid inside the second liquid bladder 20 is drawn out through the uppermost piston cylinder 25 and discharged into the pusher block 14 through the lowermost piston cylinder 25 when the piston moves downward.

[0033] The unlocking box 23 has sliding grooves 36 on both sides of its inner cavity. A second spring 37 is fixedly connected to the top of the inner cavity of each sliding groove 36. A guide block 32 is fixedly connected to one end of each second spring 37. One end of each guide block 32 extends into the interior of the unlocking box 23. A hook block 31 is fixedly connected between the two guide blocks 32. A rack 38 is fixedly connected to one side of the hook block 31. The rack 38 is engaged with two transmission gears 27. The bottom of the unlocking box 23 has a bottom groove 35 that engages with the hook block 31. The bottom hook of the hook block 31 is positioned below the unlocking box 23 through the bottom groove 35. The second spring 37 pushes the guide block 32 and the hook block 31 to move, thus limiting the position of the guide block 32 and the hook block 31.

[0034] Among them, elastic support plates 34 are fixedly connected to both sides of the inner cavity of the unlocking box 23, and support blocks 33 that cooperate with the elastic support plates 34 are fixedly connected to both sides of the hook block 31. The elastic support plates 34 provide temporary limiting support for the support blocks 33, hook blocks 31 and rack 38.

[0035] Example 2

[0036] Please see Figure 1 , Figure 2 and Figure 7 The present invention provides a technical solution: Rotating shafts 41 are fixedly connected to both sides of the unlocking box 23. One end of each rotating shaft 41 is rotatably connected to the inner side of the fixing frame 39 and one side of the winding box 6, respectively. A fixing box 40 is fixedly connected to one side of the fixing frame 39. One end of one rotating shaft 41 extends into the interior of the fixing box 40. A worm gear 42 is fixedly sleeved on the outer side of one end of the rotating shaft 41. A worm 43, which is driven by the worm gear 42, is rotatably connected inside the fixing box 40. One end of the worm 43 extends to the outer side of the fixing box 40 and is fixedly connected to a knob. By rotating the knob, the knob drives the worm 43 to drive the worm gear 42 and the rotating shaft 41 to rotate, causing the rotating shaft 41 to drive the unlocking box 23 to rotate, thus adjusting the angle of the unlocking box 23 to adapt to different working environments.

[0037] In summary, when using this primary and secondary integrated pole-mounted circuit breaker, if it is necessary to operate the manual switch 3 for closing and opening operations, the operator hooks one end of the insulating rod onto the hook ring on the hook block 31, and then pushes the hook block 31. This causes the hook block 31 to drive the rack 38 to move upwards into the inner cavity of the unlocking box 23. The rack 38 then drives the transmission gear 27 on the piston cylinder 25 located below, which in turn drives the sliding screw 26 to rotate. This causes the sliding screw 26 to drive the limit block 28 to move, which in turn drives the piston block 29 to move. This causes the liquid inside the first liquid bladder 13 to be drawn into the piston cylinder 25 through the hose 30, causing the first liquid bladder 13 to contract. At this time, the spring 10 drives the winding roller 7 to rotate, causing the winding roller 7 to wind up the sealing gasket 8. This causes the sealing gasket 8 to pull the sealing strip 15 towards the winding box 6, opening one side of the protection box 4. When the rack 38... After disengaging from the transmission gear 27 on one piston cylinder 25, it then engages with the transmission gear 27 on another piston cylinder 25. The movement of the rack 38 drives the transmission gear 27 to rotate the sliding screw 26, which in turn drives the limiting block 28 and the piston block 29 to move. This allows the liquid inside the piston cylinder 25 to enter the second liquid bladder 20 through the hose 30, causing the second liquid bladder 20 to expand and move the positioning block 21 and the base plate 5 to the outside of the protective box 4, thus opening the bottom of the protective box 4. After the rack 38 disengages from the transmission gear 27, the hook block 31 continues to move, pressing one end of the elastic support plate 34 through the support block 33, causing the elastic support plate 34 to deform until the support block 33 moves to the top of the elastic support plate 34. At this time, the elastic support plate 34 temporarily supports and limits the support block 33 and the hook block 31, the guide block 32 and the rack 38.

[0038] At this point, the manual switch 3 can be operated through another insulating rod to perform the closing and opening operations;

[0039] After the operation is completed, the insulating rod is lowered, causing the hook block 31 to drive the support block 33 to press one end of the elastic support plate 34, causing the elastic support plate 34 to deform until the support block 33 moves below the elastic support plate 34. This causes the hook block 31 to drive the guide block 32 and the rack 38 to move downwards, causing the rack 38 to drive the uppermost piston cylinder 25 to work. This causes the rack 38 to drive the transmission gear 27 to drive the sliding screw 26 to reset and rotate, causing the sliding screw 26 to drive the limit block 28 to move the piston block 29. This causes the liquid inside the second liquid bladder 20 to be sucked into the piston cylinder 25 through the hose 30, causing the second liquid bladder 20 to contract. This causes the first spring 22 to push the positioning block 21 and the base plate 5 to move below the protective box 4. Then the rack 38... The piston cylinder 25 at the bottom continues to move downwards, and the liquid inside the piston cylinder 25 is discharged into the first liquid bladder 13 through the hose 30, causing the first liquid bladder 13 to expand. The first liquid bladder 13 pushes the push block 14, which drives the sealing strip 15 to move along the inside of the drive groove 12. The sealing strip 15 pulls the sealing gasket 8 out from the outside of the take-up roller 7, and the sealing gasket 8 moves along the rail groove 11 and the second guide groove 18 towards the outside of the protective box 4 until the sealing plug 16 is inserted into the sealing strip 15, thereby sealing the inside of the protective box 4. At this time, the bottom end of the hook block 31 moves through the bottom groove 35 to the bottom of the unlocking box 23. Then, the operator removes one end of the insulating rod from the hook ring at the bottom of the hook block 31 to carry out other work.

[0040] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker, comprising a circuit breaker body (1), characterized in that: Electromagnetic voltage transformers (2) are provided on both sides of the circuit breaker body (1). A control box (24) is fixedly connected to one end of the circuit breaker body (1). A manual switch (3) is installed on the control box (24). A protective box (4) is fixedly connected to the surface of the control box (24) and outside the manual switch (3). A winding box (6) is fixedly connected to one side of the protective box (4). A winding roller (7) is rotatably connected inside the winding box (6). A sealing gasket (8) is wound around the outside of the winding roller (7). A protective cavity (17) is opened inside the protective box (4). A protective cavity (17) is opened inside the protective box (4) and above and below the protective cavity (17). The track groove (11) has one end of the sealing gasket (8) extending into the interior of the protective cavity (17). The upper and lower ends of one end of the sealing gasket (8) extend into the corresponding track groove (11). The protective box (4) has a drive groove (12) inside and on one side of the track groove (11). A first liquid bladder (13) is fixedly connected to one side of the inner cavity of the drive groove (12). A push block (14) is fixedly connected to one end of the first liquid bladder (13). The bottom end of the push block (14) extends into the interior of the protective cavity (17) and is fixedly connected to a sealing strip (15). A sealing plug (16) that cooperates with the sealing strip (15) is fixedly connected to one side of the inner cavity of the protective cavity (17). A guide rail (19) is fixedly connected to the lower rear surface of the protective box (4). A second liquid bladder (20) is fixedly connected to one side of the inner cavity of the guide rail (19). A positioning block (21) is fixedly connected to one end of the second liquid bladder (20). A first spring (22) is fixedly connected to the other side of the inner cavity of the guide rail (19). One end of the first spring (22) is fixedly connected to one side of the positioning block (21). One end of the positioning block (21) extends to the outside of the guide rail (19) and is fixedly connected to a base plate (5). One end of the base plate (5) extends into the interior of the protective cavity (17). The top of the base plate (5) is provided with a second guide groove (18), one end of the second guide groove (18) is connected to one end of a rail groove (11); The top of the take-up box (6) is fixedly connected to the drive box (9), and the drive box (9) is equipped with a spring (10). The top of the take-up roller (7) extends into the drive box (9) and is connected to the spring (10). A fixed frame (39) is fixedly connected to one side of the winding box (6). An unlocking box (23) is placed inside the fixed frame (39). Two piston cylinders (25) are fixedly connected to one side of the inner cavity of the unlocking box (23). A sliding screw (26) is rotatably connected to one side of each piston cylinder (25). A limit block (28) is threadedly connected to the outer side of each sliding screw (26). A piston block (29) is fixedly connected to one side of each limit block (28). One end of each piston block (29) extends into the piston cylinder (25) and cooperates with the inner cavity of the piston cylinder (25). A transmission gear (27) is fixedly sleeved on the outer side of one end of each sliding screw (26). One side of each piston cylinder (25) is fixedly connected with a hose (30). One end of each hose (30) extends into the second liquid bladder (20) and the first liquid bladder (13), respectively. The second liquid bladder (20) is engaged with the lowermost piston cylinder (25), and the first liquid bladder (13) is engaged with the uppermost piston cylinder (25). One end of one hose (30) extends into the uppermost piston cylinder (25), and one end of the hose (30) is located on the right side of the piston block (29). One end of the other hose (30) extends into the lowermost piston cylinder (25), and one end of the hose (30) is located on the left side of the piston block (29). The unlocking box (23) has two rotating shafts (41) fixedly connected to both sides. One end of each of the two rotating shafts (41) is rotatably connected to the inner side of the fixing frame (39) and the side of the winding box (6). A fixing box (40) is fixedly connected to one side of the fixing frame (39). One end of one of the rotating shafts (41) extends into the inside of the fixing box (40). A worm gear (42) is fixedly sleeved on the outer side of one end of the rotating shaft (41). A worm (43) is rotatably connected inside the fixing box (40) and is driven by the worm gear (42). One end of the worm (43) extends into the outer side of the fixing box (40) and is fixedly connected to a knob.

2. The primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The inner cavity of the unlocking box (23) is provided with sliding grooves (36) on both sides. The top of the inner cavity of the sliding grooves (36) is fixedly connected with a second spring (37). One end of the second spring (37) is fixedly connected with a guide block (32). One end of the two guide blocks (32) extends into the interior of the unlocking box (23). A hook block (31) is fixedly connected between the two guide blocks (32). A rack (38) is fixedly connected to one side of the hook block (31). The rack (38) is engaged with two transmission gears (27). The bottom of the unlocking box (23) is provided with a bottom groove (35) that engages with the hook block (31).

3. The primary and secondary integrated pole-mounted circuit breaker according to claim 2, characterized in that: Both sides of the inner cavity of the unlocking box (23) are fixedly connected with elastic support plates (34), and both sides of the hook block (31) are fixedly connected with support blocks (33) that cooperate with the elastic support plates (34).

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