Pole-mounted vacuum circuit breaker

Abstract

The invention relates to the technical field of vacuum circuit breakers, and particularly discloses a pole-mounted vacuum circuit breaker which comprises a pole body, a supporting frame is fixedly connected to the upper portion of the pole body, and a circuit breaker is fixedly connected to the upper portion of the supporting frame. The tightening mechanism is located between the circuit breaker and the supporting frame, and the tightening mechanism can tighten the circuit breaker when the rod column body vibrates; when the pole body where a circuit breaker is located vibrates, the circuit breaker vibrates above the pole body to trigger the tightening mechanism to tighten a bolt for fixing the circuit breaker, and the risk that the bolt loosens under the condition that the circuit breaker vibrates for a long time, and then the circuit breaker falls off is avoided; when the circuit breaker vibrates, the locking block of the locking mechanism grasps the rod column main body, so that the supporting ring is fixed on the rod column main body, and when the circuit breaker vibrates every time, the locking block slightly moves and is engaged with the surface of the rod column main body, so that the effect that the rod column main body is tighter when the circuit breaker vibrates is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum circuit breakers, in particular to a pole-mounted vacuum circuit breaker. Background Art

[0002] Vacuum circuit breakers are important equipment in industrial fields such as distribution networks and substations. When installed on poles, vacuum circuit breakers are usually installed on cylindrical poles such as utility poles, cement poles, and steel pipe poles, collectively referred to as pole poles. Vacuum circuit breakers are usually fixed with bolts during installation. When existing circuit breakers are installed in plateau areas, the geological structure of high-altitude areas is complex and there are multiple fault zones. When the crustal stress accumulates to a certain level, it will rupture along these fault zones, triggering earthquakes. Long-term vibrations may cause the bolts and nuts that fix the vacuum circuit breaker to loosen, affecting the mechanical properties of the circuit breaker and even posing the risk of the circuit breaker falling. To this end, we propose a pole-mounted vacuum circuit breaker. Summary of the Invention

[0003] The object of the present invention is to provide a pole-mounted vacuum circuit breaker to solve the problem raised in the above background technology that long-term vibration may cause the bolts and nuts fixing the vacuum circuit breaker to loosen, affecting the mechanical performance of the circuit breaker and even causing the circuit breaker to fall.

[0004] To achieve the above object, the present invention provides the following technical solution: a pole-mounted vacuum circuit breaker, comprising a pole body, a support frame fixedly connected above the pole body, and a circuit breaker fixedly connected above the support frame; The lower end of the support frame is fixedly connected to an oblique frame, the bottom of the oblique frame is fixedly connected to a support ring, and the support ring is fixed to the periphery of the pole column body; a tightening mechanism, the tightening mechanism being located between the circuit breaker and the support frame, and being capable of tightening the circuit breaker when the pole body vibrates; A locking mechanism is located on the periphery of the rod column body and can lock the rod column body when the rod column body vibrates.

[0005] The tightening mechanism includes a tightening box fixedly connected to the upper end of the support frame, a sliding slot is provided on the upper end of the tightening box, a sliding block is fixedly connected to the bottom of the circuit breaker, the sliding block is located inside the tightening box, and the circuit breaker and the tightening box are connected by bolts.

[0006] The inner wall of the tightening box is fixedly connected with a spring, and one end of the spring close to the sliding block is fixedly connected with a baffle. The baffles are respectively arranged on both sides of the sliding block. The baffles are located inside the tightening box and are slidably connected to the tightening box.

[0007] Among them, the baffle is fixedly connected to a connecting rod at one end near the bolt, and a sliding groove is provided on the connecting rod at one end near the bolt. A plurality of fixing rods are fixedly connected to the inner wall of the sliding groove, and a torsion spring 1 is fixedly connected to the outer wall of the fixing rod. A pawl is fixedly connected to the end of the torsion spring 1 away from the fixing rod, and the pawl is located on the periphery of the fixing rod and is rotatably connected to the fixing rod, and the pawl is located inside the sliding groove.

[0008] Wherein, a blocking rod is fixedly connected to the inner wall of the sliding groove, and the blocking rod is located on one side of the pawl and abuts against the outer wall of the pawl.

[0009] Wherein, the end of the pawl is fixedly connected with an anti-slip pad.

[0010] Among them, the locking mechanism includes a rope hole opened on the outer wall of the tightening box, rope grooves are opened on the inner walls of the support frame and the inclined frame, a rope is fixedly connected to the outer wall of the baffle, the rope passes through the rope hole, and the rope is located inside the rope groove and is slidably connected to the rope groove.

[0011] A locking groove is provided inside the support ring, a plurality of locking holes are provided inside the locking groove, a locking ring is movably connected inside the locking groove, and a plurality of locking blocks are fixedly connected to one end of the locking ring close to the locking hole.

[0012] The locking blocks are wedge-shaped, and each locking block corresponds to a locking hole.

[0013] The outer wall of the locking ring is fixedly connected to a second torsion spring, one end of the second torsion spring away from the locking ring is fixedly connected to a rotating ring, and one end of the rotating ring away from the second torsion spring is fixedly connected to a rope.

[0014] The present invention has at least the following beneficial effects: When the pole body where the circuit breaker is located vibrates, the vibration of the circuit breaker above the pole body can trigger the tightening mechanism to tighten the bolts fixing the circuit breaker, thereby avoiding the risk of the circuit breaker falling due to loosening of the bolts under long-term vibration conditions; When the circuit breaker vibrates, the locking block of the locking mechanism grasps the rod body, so that the support ring is fixed on the rod body. Every time the circuit breaker vibrates, the locking block will move slightly and bite the surface of the rod body, achieving a tightening effect with each vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the pole column of the present invention; Figure 2 This is a schematic structural diagram of a circuit breaker according to the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle; Figure 4This is a schematic cross-sectional view of the tightening box of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure of the middle B area; Figure 6 This is a schematic diagram of the front structure of the circuit breaker of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of the middle C area; Figure 8 This is a schematic diagram of the top view of the connecting rod structure of the present invention; Figure 9 For the present invention Figure 8 Schematic diagram of the enlarged structure of the middle D area; Figure 10 This is a schematic diagram of the cross-sectional structure of the connecting rod of the present invention; Figure 11 For the present invention Figure 10 Schematic diagram of the enlarged structure of the middle E area; Figure 12 This is a schematic diagram of the cross-sectional structure of the support ring of the present invention; Figure 13 This is a schematic diagram of the top view of the rotating ring of the present invention.

[0016] In the figure: 1. Pole column body; 11. Support frame; 12. Circuit breaker; 13. Inclined frame; 14. Support ring; 2. Tightening mechanism; 21. Tightening box; 22. Sliding groove; 23. Sliding block; 24. Bolt; 25. Spring; 26. Baffle; 27. Connecting rod; 28. Sliding groove; 29. Fixed rod; 210. Torsion spring 1; 211. Ratchet; 212. Baffle; 213. Anti-slip pad; 3. Locking mechanism; 31. Rope hole; 32. Rope groove; 33. Rope; 34. Locking groove; 35. Locking hole; 36. Locking ring; 37. Locking block; 38. Torsion spring 2; 39. Rotating ring. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figures 1-13 The present invention provides a technical solution: a pole-mounted vacuum circuit breaker, comprising a pole body 1, a support frame 11 being fixedly connected above the pole body 1, and a circuit breaker 12 being fixedly connected above the support frame 11; The lower end of the support frame 11 is fixedly connected to an oblique frame 13, and the bottom of the oblique frame 13 is fixedly connected to a support ring 14, and the support ring 14 is fixed to the periphery of the column body 1; A tightening mechanism 2, located between the circuit breaker 12 and the support frame 11, capable of tightening the circuit breaker 12 when the pole body 1 vibrates; A locking mechanism 3, which is located on the periphery of the pole body 1 and can lock the pole body 1 when the pole body 1 vibrates; In the present invention, when the pole body 1 on which the circuit breaker 12 is located vibrates, the vibration of the circuit breaker 12 above the pole body 1 can trigger the tightening mechanism 2 to tighten the bolts 24 that secure the circuit breaker 12, thereby preventing the bolts 24 from loosening under long-term vibration conditions, thereby preventing the circuit breaker 12 from falling. When the circuit breaker 12 vibrates, the locking block 37 of the locking mechanism 3 grips the rod body 1, so that the support ring 14 is fixed to the rod body 1. Every time the circuit breaker 12 vibrates, the locking block 37 moves slightly and bites into the inside of the rod body 1, achieving a tightening effect with each vibration.

[0019] The tightening mechanism 2 includes a tightening box 21 fixedly connected to the upper end of the support frame 11, a sliding slot 22 is defined at the upper end of the tightening box 21, a sliding block 23 is fixedly connected to the bottom of the circuit breaker 12, and the sliding block 23 is located inside the tightening box 21. The circuit breaker 12 and the tightening box 21 are connected by bolts 24; The inner wall of the tightening box 21 is fixedly connected to a spring 25, and one end of the spring 25 close to the sliding block 23 is fixedly connected to a baffle 26. The baffles 26 are respectively provided on both sides of the sliding block 23. The baffles 26 are located inside the tightening box 21 and are slidably connected to the tightening box 21. When the circuit breaker 12 is installed in a plateau area, the earthquake risk is relatively high because high-altitude areas are often located at the junction of plates or in areas with frequent geological activities. For example, the Qinghai-Tibet Plateau is formed by the continuous collision of the Indian Plate and the Eurasian Plate. The plate collision has caused strong deformation of the earth's crust and seismic activity. The Qinghai-Tibet Plateau is one of the main areas in the world where intracontinental earthquakes occur, and the earthquakes are strong, frequent, and regular. The circuit breaker 12 is installed on the pole column body 1 and is affected by frequent earthquakes. The bolts 24 fixing the circuit breaker 12 to the support frame 11 will become loose. Every time the circuit breaker 12 vibrates, the sliding block 23 fixed to the bottom of the circuit breaker 12 slides back and forth inside the tightening box 21. The sliding block 23 can push the baffles 26 on both sides and squeeze the spring 25. Under the reaction of the spring 25, the baffle 26 always abuts against the sliding block 23 and slides with the sliding block 23, which paves the way for tightening the bolts 24 and locking the pole column body 1 with the locking mechanism 3.

[0020] The baffle 26 is fixedly connected to a connecting rod 27 at one end near the bolt 24. A chute 28 is defined on the end of the connecting rod 27 near the bolt 24. A plurality of fixing rods 29 are fixedly connected to the inner wall of the chute 28. A torsion spring 1 210 is fixedly connected to the outer wall of the fixing rod 29. A pawl 211 is fixedly connected to the end of the torsion spring 1 210 away from the fixing rod 29. The pawl 211 is located outside the fixing rod 29 and is rotatably connected to the fixing rod 29. The pawl 211 is located inside the chute 28. The inner wall of the sliding groove 28 is fixedly connected with a blocking rod 212, and the blocking rod 212 is located on one side of the pawl 211 and abuts against the outer wall of the pawl 211; When the sliding block 23 drives the baffle 26 to slide inside the tightening box 21, the connecting rod 27 fixedly connected to the baffle 26 moves back and forth on the side of the bolt 24. When the connecting rod 27 moves, the connecting rod 27 drives the pawl 211 inside the slide groove 28 to abut the bolt 24 and push the bolt 24 to rotate. Since a fixing rod 29 is provided on one side of the pawl 211 and abuts the baffle rod 212, the pawl 211 cannot rotate in the opposite direction, and the end of the pawl 211 is fixedly connected to the anti-slip pad 213. The pawl 211 can drive the bolt 24 to tighten, thereby fixing the circuit breaker 12 above the tightening box 21. Even if there is oil or slight rust on the surface of the bolt 24, it can still be tightened stably, reducing the risk of slippage. When the connecting rod 27 is reset, the pawl 211 rotates around the fixed rod 29. At this time, the torsion spring 1 210 accumulates force. When the pawl 211 passes over the bolt 24, the torsion spring 1 210 resets the pawl 211 and re-engages the blocking rod 212. The sliding block 23 can tighten the bolt 24 by moving back and forth. There is no need to manually switch the direction or perform additional operations. The sliding block 23 can complete a tightening action with one round trip. It is suitable for the installation of the circuit breaker 12 in plateau areas, does not require frequent maintenance, and reduces maintenance costs.

[0021] The locking mechanism 3 includes a rope hole 31 formed on the outer wall of the tightening box 21, a rope groove 32 formed on the inner walls of the support frame 11 and the inclined frame 13, and a rope 33 fixedly connected to the outer wall of the baffle 26. The rope 33 passes through the rope hole 31 and is located inside the rope groove 32 and is slidably connected to the rope groove 32. The support ring 14 has a locking groove 34 formed inside, a plurality of locking holes 35 formed inside the locking groove 34, a locking ring 36 movably connected inside the locking groove 34, and a plurality of locking blocks 37 fixedly connected to one end of the locking ring 36 near the locking hole 35; The locking blocks 37 are wedge-shaped, and each locking block 37 corresponds to the position of the locking hole 35; The outer wall of the locking ring 36 is fixedly connected to a second torsion spring 38 , and the end of the second torsion spring 38 away from the locking ring 36 is fixedly connected to a rotating ring 39 , and the end of the rotating ring 39 away from the second torsion spring 38 is fixedly connected to the rope 33 ; When the baffle 26 slides, the baffle 26 can drive the rope 33 to pull the rotating ring 39 through the rope hole 31 and the rope groove 32. Since a torsion spring 238 is provided between the rotating ring 39 and the locking ring 36, the rope 33 can be tightened and loosened when the baffle 26 moves back and forth. At this time, the torsion spring 238 switches between energy storage and relaxation. When the torsion spring 238 stores energy, the rope 33 pulls the rotating ring 39 to drive the locking ring 36 to rotate through the torsion spring 238. The locking block 37 located on the inner side of the locking ring 36 moves slightly on the outside of the rod column body 1. When the torsion spring 238 is relaxed, the locking block 37 is wedge-shaped, and the torsion spring 238 drives the locking block 37 through the locking ring 36. The locking block 37 engages the rod column body 1 and cooperates with the support ring 14 to clamp the rod column body 1. At this time, the circuit breaker 12 is fixed on the support frame 11, and the support frame 11 is fixed to the rod column body 1 through the support ring 14. Even if the surface of the rod column body 1 is smooth or there is rain or snow, the locking block 37 can still be reliably fixed to prevent the circuit breaker from slipping or overturning. After the locking block 37 engages the rod column body 1, the support ring 14 provides reverse support force to ensure that the circuit breaker 12 is firmly fixed in both axial and radial directions to resist external forces such as wind loads and earthquakes. In addition, the tightening mechanism 2 and the locking mechanism 3 do not require frequent maintenance, which reduces downtime and maintenance costs, saves operation and maintenance costs, and is suitable for large-scale deployment.

[0022] The working principle and use process of the present invention are as follows: each time the circuit breaker 12 vibrates, the sliding block 23 fixedly connected to the bottom of the circuit breaker 12 slides back and forth inside the tightening box 21. The sliding block 23 can push the baffles 26 on both sides and squeeze the spring 25. Under the reaction of the spring 25, the baffle 26 always abuts against the sliding block 23 and slides along with the sliding block 23. When the sliding block 23 drives the baffle 26 to slide inside the tightening box 21, the connecting rod 27 fixedly connected to the baffle 26 moves back and forth on one side of the bolt 24, and the connecting rod 27 moves. When the breaker 12 is in the state of being engaged, the pawl 211 is tightened and the bolt 24 is tightened. When the breaker 12 is in the state of being engaged, the pawl 211 is tightened and the bolt 24 is tightened. When the breaker 12 is in the state of being engaged, the pawl 211 is tightened and the bolt 24 is tightened. When the breaker 12 is in the state of being engaged, the pawl 211 is tightened and the bolt 24 is tightened. When the breaker 12 is in the state of being engaged, the pawl 211 is tightened and the bolt 24 is tightened. When the breaker 12 is in the state of being engaged, the pawl 211 is tightened and the bolt 24 is tightened. When the breaker 12 is in the state of being engaged, the pawl 211 is tightened and the bolt 24 is tightened. When the breaker 12 is in the state of being engaged, the pawl 211 is tightened and the bolt 24 is tightened. When the pawl 211 passes the bolt 24, the torsion spring 210 resets the pawl 211 and abuts the blocking rod 212 again. The sliding block 23 can tighten the bolt 24 by moving back and forth. When the baffle 26 slides, the baffle 26 can drive the rope 33 to pass through the rope hole 31 and the rope groove 32 to pull the rotating ring 39. Since a torsion spring 23 is provided between the rotating ring 39 and the locking ring 36, the rope 33 can be tightened and loosened when the baffle 26 moves back and forth. At this time, the torsion spring 23 stores energy and releases the rope. When switching between relaxation and release, when the torsion spring 2 38 stores energy, the rope 33 pulls the rotating ring 39 to drive the locking ring 36 to rotate through the torsion spring 2 38, and the locking block 37 located on the inner side of the locking ring 36 moves slightly on the outside of the pole column body 1. When the torsion spring 2 38 is relaxed, since the locking block 37 is wedge-shaped, the torsion spring 2 38 drives the locking block 37 to bite the pole column body 1 through the locking ring 36, and cooperates with the support ring 14 to clamp the pole column body 1. At this time, the circuit breaker 12 is fixed on the support frame 11, and the support frame 11 is fixed to the pole column body 1 through the support ring 14.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0024] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pole-mounted vacuum circuit breaker, comprising: A pole column body (1), a support frame (11) being fixedly connected above the pole column body (1), and a circuit breaker (12) being fixedly connected above the support frame (11); The lower end of the support frame (11) is fixedly connected to an inclined frame (13), the bottom of the inclined frame (13) is fixedly connected to a support ring (14), and the support ring (14) is fixed to the periphery of the column body (1); It is characterized by further comprising: A tightening mechanism (2), the tightening mechanism (2) being located between the circuit breaker (12) and the support frame (11), and the tightening mechanism (2) being capable of tightening the circuit breaker (12) when the pole column body (1) vibrates; A locking mechanism (3) is located on the periphery of the rod column body (1), and the locking mechanism (3) can lock the rod column body (1) when the rod column body (1) vibrates.

2. The pole-mounted vacuum circuit breaker according to claim 1, characterized in that: The tightening mechanism (2) comprises a tightening box (21) fixedly connected to the upper end of the support frame (11), a sliding groove (22) is provided at the upper end of the tightening box (21), a sliding block (23) is fixedly connected to the bottom of the circuit breaker (12), the sliding block (23) is located inside the tightening box (21), and the circuit breaker (12) and the tightening box (21) are connected by bolts (24).

3. The pole-mounted vacuum circuit breaker according to claim 2, characterized in that: A spring (25) is fixedly connected to the inner wall of the tightening box (21), and a baffle (26) is fixedly connected to one end of the spring (25) close to the sliding block (23). The baffles (26) are respectively arranged on both sides of the sliding block (23). The baffles (26) are located inside the tightening box (21) and are slidably connected to the tightening box (21).

4. The pole-mounted vacuum circuit breaker according to claim 3, characterized in that: The baffle (26) is fixedly connected to a connecting rod (27) at one end close to the bolt (24), and a slide groove (28) is provided at one end of the connecting rod (27) close to the bolt (24). A plurality of fixed rods (29) are fixedly connected to the inner wall of the slide groove (28), and a torsion spring (210) is fixedly connected to the outer wall of the fixed rod (29). The torsion spring (210) is fixedly connected to a pawl (211) at one end away from the fixed rod (29). The pawl (211) is located on the periphery of the fixed rod (29) and is rotatably connected to the fixed rod (29). The pawl (211) is located inside the slide groove (28).

5. The pole-mounted vacuum circuit breaker according to claim 4, characterized in that: A blocking rod (212) is fixedly connected to the inner wall of the sliding groove (28), and the blocking rod (212) is located on one side of the ratchet (211) and abuts against the outer wall of the ratchet (211).

6. The pole-mounted vacuum circuit breaker according to claim 5, characterized in that: The end of the pawl (211) is fixedly connected to an anti-slip pad (213).

7. The pole-mounted vacuum circuit breaker according to claim 3, characterized in that: The locking mechanism (3) includes a rope hole (31) formed on the outer wall of the tightening box (21), a rope groove (32) formed on the inner walls of the support frame (11) and the inclined frame (13), a rope (33) fixedly connected to the outer wall of the baffle (26), the rope (33) passing through the rope hole (31), the rope (33) located inside the rope groove (32) and slidably connected to the rope groove (32).

8. The pole-mounted vacuum circuit breaker according to claim 7, characterized in that: A locking groove (34) is provided inside the support ring (14), a plurality of locking holes (35) are provided inside the locking groove (34), a locking ring (36) is movably connected inside the locking groove (34), and a plurality of locking blocks (37) are fixedly connected to one end of the locking ring (36) close to the locking hole (35).

9. The pole-mounted vacuum circuit breaker according to claim 8, characterized in that: The locking blocks (37) are wedge-shaped, and each locking block (37) corresponds to the position of the locking hole (35).

10. The pole-mounted vacuum circuit breaker according to claim 9, characterized in that: The outer wall of the locking ring (36) is fixedly connected to a second torsion spring (38), one end of the second torsion spring (38) away from the locking ring (36) is fixedly connected to a rotating ring (39), and one end of the rotating ring (39) away from the second torsion spring (38) is fixedly connected to the rope (33).

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