A primary and secondary fused integrated pole-mounted circuit breaker convenient to install

Abstract

The application relates to the technical field of circuit breakers, in particular to a primary and secondary fusion integrated pole-mounted circuit breaker convenient to install, which comprises a mechanism box, two transmission shafts rotatably installed at one end of the mechanism box, an operating handle and an energy storage handle fixed at the outer ends of the two transmission shafts respectively, a first limiting mechanism, a second limiting mechanism and an unlocking mechanism arranged in the interior of the mounting seat, the first limiting mechanism being matched with the operating handle, and the second limiting mechanism being matched with the energy storage handle. The beneficial effect of the application is that, before the pole-mounted circuit breaker integrated with the precise power electronic component manufacturing technology is overhauled, the first limiting mechanism and the second limiting mechanism are respectively used to limit the operating handle and the energy storage handle, so that the operating personnel can not touch the operating handle and the energy storage handle by mistake during the pole-mounted circuit breaker overhaul, the pole-mounted circuit breaker is prevented from entering the closing or energy storage state, and the staff is prevented from being electrocuted, thereby improving the safety during the pole-mounted circuit breaker overhaul.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit breakers, in particular to a primary and secondary fusion integrated complete set of pole-mounted circuit breaker convenient to install. BACKGROUND

[0002] The primary and secondary fusion integrated pole-mounted circuit breaker refers to the fusion of primary equipment (such as the circuit breaker body) and secondary equipment (such as measurement, control, protection, etc.), forming a set of standardized installation on the pole circuit breaker equipment. The pole-mounted circuit breaker is essentially a high-voltage switch installed on a power pole for outdoor distribution lines with arc extinguishing devices, which can quickly cut off the current and extinguish the arc when the circuit fails, ensuring the safety of the line. The bottom end of the primary and secondary fusion integrated complete set of pole-mounted circuit breaker is usually provided with a support plate, which can be conveniently fixed on the power pole with bolts.

[0003] By integrating advanced power electronic component manufacturing technology, modern pole-mounted circuit breakers achieve precise current detection and intelligent tripping control, greatly improving the level of power distribution automation. To ensure the normal use of the pole-mounted circuit breaker, the staff will regularly climb the pole to maintain it. The pole-mounted circuit breaker usually has an operating handle and an energy storage handle. During maintenance of the pole-mounted circuit breaker, the operating handle is usually used to place it in the tripping state. If the pole-mounted circuit breaker is under maintenance, accidental contact with the operating handle will cause it to close, and the pole-mounted circuit breaker will instantly connect the high-voltage line, causing the worker who is touching the live part to be directly electrocuted, endangering life. If the operating mechanism is in the uncharged state during maintenance, accidental contact with the energy storage handle will cause the operating mechanism to complete the charging. At this time, if the locking device of the operating mechanism fails and the worker accidentally touches the operating handle, the energy storage release may directly drive the circuit breaker to close or open, causing the same risk of electric shock and short circuit as accidental contact with the operating handle. SUMMARY

[0004] The purpose of the present application is to provide a primary and secondary fusion integrated complete set of pole-mounted circuit breaker convenient to install to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a primary and secondary fusion integrated complete set of pole-mounted circuit breaker convenient to install, comprising a mechanism box, two transmission shafts rotatably installed at one end of the mechanism box, an operating handle and an energy storage handle fixed at one end of the outer part of the two transmission shafts, respectively, a mounting seat fixedly installed on the side of the mechanism box close to the operating handle and the energy storage handle, a first limiting mechanism, a second limiting mechanism and an unlocking mechanism arranged in the interior of the mounting seat, the first limiting mechanism and the operating handle cooperating with each other, and the second limiting mechanism and the energy storage handle cooperating with each other.

[0006] Preferably, the mechanism box is provided with two indicator nameplates and two indicator marks on the side near the operating handle. Both indicator nameplates are fixedly connected to the mechanism box, and both indicator marks are rotatably connected to the mechanism box. The two indicator nameplates cooperate with the two indicator marks respectively.

[0007] Preferably, the first limiting mechanism includes two rotating shafts and two first locking components. Both rotating shafts are rotatably mounted inside the mounting base. Limiting rods are fixedly sleeved on the outside of both rotating shafts. Transmission rods are rotatably mounted on the side of each limiting rod that is close to each other. A receiving plate is rotatably mounted on the end of each transmission rod that is close to each other. Guide rods are slidably sleeved on both ends inside the receiving plate. Springs are sleeved on the outside of each guide rod. Both guide rods are fixedly mounted inside the mounting base. The two first locking components are symmetrically arranged on both sides of the two limiting rods.

[0008] Preferably, the first locking component includes two slots and a locking plate. The two slots are respectively opened at the same end of two rotating shafts. The two ends of the locking plate cooperate with the two slots. The two ends inside the locking plate are slidably fitted with guide rods. The two guide rods are fixedly installed inside the mounting base. The two guide rods are fitted with springs.

[0009] Preferably, the second limiting mechanism includes a second rotating shaft, a second limiting rod, an auxiliary component, and two second locking components. The second rotating shaft is rotatably mounted inside the mounting base. A third limiting rod is fixedly sleeved on the outside of the second rotating shaft. A third spring is fixedly mounted on the bottom of the third limiting rod. The end of the third spring away from the third limiting rod is fixedly connected to the inner wall of the mounting base. The two second locking components are symmetrically arranged on both sides of the third limiting rod.

[0010] Preferably, the auxiliary component includes a connecting block, which is slidably fitted inside the mounting base. The connecting block is fixedly connected to a limiting rod two. A spring five is fixedly installed between the top of the connecting block and the inner wall of the mounting base. A connecting groove is provided at the bottom of the connecting block. A connecting rod is provided at the bottom of the connecting block. The connecting rod is rotatably installed inside the mounting base. Limiting shafts are fixedly installed at both ends of the connecting rod. A strip groove is provided inside the limiting rod three. The two limiting shafts are respectively movably disposed inside their respective strip grooves and connecting grooves.

[0011] Preferably, the second locking assembly comprises a clamping groove two and a clamping plate two, the clamping groove two is arranged at one end of the rotating shaft two, the clamping groove two and the clamping plate two are matched with each other, both ends of the clamping plate two are slidably sleeved with guide rods three, both the guide rods three are fixedly installed in the interior of the mounting seat, and one end of each of the guide rods three is sleeved with a spring four.

[0012] Preferably, the unlocking mechanism comprises a threaded rod, the threaded rod is in threaded connection with the mounting seat, the bottom of the threaded rod is rotationally connected with an adjusting plate, both ends of the adjusting plate are slidably sleeved with guide rods four, both the guide rods four are fixedly installed in the interior of the mounting seat, and the bottom of the adjusting plate is fixedly installed with four push plates, and the four push plates are matched with the clamping plate one and the clamping plate two respectively.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] 1. Before the maintenance of the pole-mounted circuit breaker integrated with the precise power electronic component manufacturing technology, the first limiting mechanism and the second limiting mechanism are operated to limit the operating handle and the energy storage handle respectively, so that the operating personnel can avoid touching the operating handle and the energy storage handle during the maintenance of the pole-mounted circuit breaker, the pole-mounted circuit breaker enters the closing or energy storage state, and thus the staff is prevented from being electrified, and the safety during the maintenance of the pole-mounted circuit breaker is increased.

[0015] 2. The limiting rod two can move in the vertical direction by a small amplitude through the auxiliary assembly, when the energy storage handle is used to store energy in the mechanism box, the limiting rod two is touched during the rotation of the energy storage handle, the limiting rod two drives the connecting block to move synchronously at this time, and the spring five is extruded under stress, so that the energy storage handle and the limiting rod two are prevented from being in rigid contact. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 It is a schematic diagram of the structure of the outside of the mounting seat of the present application;

[0018] Figure 3 It is a schematic diagram of the internal structure of the mounting seat of the present application;

[0019] Figure 4 It is a schematic diagram of the unlocking mechanism and the first limiting mechanism and the second limiting mechanism of the present application;

[0020] Figure 5 It is a schematic diagram of the structure of one side of the first limiting mechanism of the present application;

[0021] Figure 6 It is a schematic diagram of the structure of the other side of the first limiting mechanism of the present application;

[0022] Figure 7 Figure 2 is a structure diagram of one side of a second limiting mechanism of the application;

[0023] Figure 8 Figure 3 is a structure diagram of the other side of the second limiting mechanism of the application.

[0024] In the drawings, the components represented by the respective reference numbers are listed as follows: 1, mechanism box; 2, transmission shaft; 3, operation handle; 4, energy storage handle; 5, indication nameplate; 6, indication mark; 7, mounting seat; 8, rotating shaft one; 9, limiting rod one; 10, transmission rod; 11, receiving plate; 12, guide rod one; 13, spring one; 14, clamping groove one; 15, clamping plate one; 16, guide rod two; 17, spring two; 18, rotating shaft two; 19, limiting rod two; 20, limiting rod three; 21, spring three; 22, clamping groove two; 23, clamping plate two; 24, guide rod three; 25, spring four; 26, connecting block; 27, spring five; 28, connecting groove; 29, connecting rod; 30, limiting shaft; 31, strip-shaped sliding groove; 32, threaded rod; 33, adjusting plate; 34, guide rod four; 35, pushing plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0026] The application provides a technical solution: as shown in Figures 1-8 Figure 1, a primary and secondary fusion complete pole-mounted circuit breaker convenient to install, comprising a mechanism box 1, two transmission shafts 2 rotatably mounted at one end of the mechanism box 1, an operation handle 3 and an energy storage handle 4 fixed at the outer ends of the two transmission shafts 2 respectively, a mounting seat 7 fixedly installed on the side of the mechanism box 1 close to the operation handle 3 and the energy storage handle 4, a first limiting mechanism, a second limiting mechanism and an unlocking mechanism arranged in the interior of the mounting seat 7, the first limiting mechanism cooperating with the operation handle 3, and the second limiting mechanism cooperating with the energy storage handle 4.

[0027] The side of the mechanism box 1 close to the operation handle 3 is provided with two indication nameplates 5 and two indication marks 6, the two indication nameplates 5 are fixedly connected with the mechanism box 1, the two indication marks 6 are rotatably connected with the mechanism box 1, and the two indication nameplates 5 respectively cooperate with the two indication marks 6.

[0028] The first limiting mechanism comprises two rotating shafts 8 and two first locking assemblies. The rotating shafts 8 are rotatably installed in the interior of the mounting seat 7. The outer portions of the rotating shafts 8 are fixedly sleeved with limiting rods 9. The sides close to each other of the limiting rods 9 are rotatably installed with transmission rods 10. The ends close to each other of the transmission rods 10 are rotatably installed with a receiving plate 11. The two ends in the interior of the receiving plate 11 are slidably sleeved with guide rods 12. The outer portions of the guide rods 12 are sleeved with springs 13. The guide rods 12 are fixedly installed in the interior of the mounting seat 7. The two first locking assemblies are symmetrically arranged on the two sides of the limiting rods 9.

[0029] The first locking assembly comprises two clamping grooves 14 and a clamping plate 15. The clamping grooves 14 are respectively formed in the same end of the rotating shafts 8. The two ends of the clamping plate 15 are matched with the clamping grooves 14. The two ends in the interior of the clamping plate 15 are slidably sleeved with guide rods 16. The guide rods 16 are fixedly installed in the interior of the mounting seat 7. The outer portions of the guide rods 16 are sleeved with springs 17.

[0030] The second limiting mechanism comprises a rotating shaft 18, a limiting rod 19, an auxiliary assembly and two second locking assemblies. The rotating shaft 18 is rotatably installed in the interior of the mounting seat 7. The outer portion of the rotating shaft 18 is fixedly sleeved with a limiting rod 20. The bottom of the limiting rod 20 is fixedly installed with a spring 21. The end, away from the limiting rod 20, of the spring 21 is fixedly connected with the inner wall of the mounting seat 7. The two second locking assemblies are symmetrically arranged on the two sides of the limiting rod 20.

[0031] The auxiliary assembly comprises a connecting block 26. The connecting block 26 is slidably and tightly installed in the interior of the mounting seat 7. The connecting block 26 is fixedly connected with the limiting rod 19. The top of the connecting block 26 and the inner wall of the mounting seat 7 are fixedly installed with a spring 27. The bottom of the connecting block 26 is formed with a connecting groove 28. The bottom of the connecting block 26 is provided with a connecting rod 29. The connecting rod 29 is rotatably installed in the interior of the mounting seat 7. The two ends of the connecting rod 29 are fixedly installed with limiting shafts 30. The interior of the limiting rod 20 is formed with a strip-shaped sliding groove 31. The two limiting shafts 30 are movably arranged in the respective strip-shaped sliding grooves 31 and the connecting grooves 28.

[0032] The second locking assembly comprises a clamping groove 22 and a clamping plate 23. The clamping groove 22 is formed in one end of the rotating shaft 18. The clamping groove 22 is matched with the clamping plate 23. The two ends of the clamping plate 23 are slidably sleeved with guide rods 24. The guide rods 24 are fixedly installed in the interior of the mounting seat 7. The one ends of the guide rods 24 are sleeved with springs 25.

[0033] The unlocking mechanism includes a threaded rod 32, which is threadedly connected to the mounting base 7. An adjusting plate 33 is rotatably connected to the bottom of the threaded rod 32. Guide rods 34 are slidably sleeved at both ends of the adjusting plate 33. Both guide rods 34 are fixedly installed inside the mounting base 7. Four push plates 35 are fixedly installed at the bottom of the adjusting plate 33. The four push plates 35 cooperate with their respective corresponding locking plates 15 and 23.

[0034] Working principle: First, fix the mounting base 7 on one side of the mechanism box 1 and above the two drive shafts 2. Before overhauling the pole-mounted circuit breaker that integrates precision power electronic component manufacturing technology, use the operating handle 3 to put the pole-mounted circuit breaker in the open state. At the same time, it is also necessary to ensure that the pole-mounted circuit breaker is in the non-energy storage state. Before overhauling the pole-mounted circuit breaker, limit the operating handle 3 and the energy storage handle 4 respectively to avoid accidental contact of the operating handle 3 and the energy storage handle 4 during maintenance.

[0035] When not in use, the operating handle 3 is horizontally positioned by default. When the operating handle 3 is in a limited position, rotating any one of the limiting rods 9 toward the operating handle 3 causes the receiving plate 11 to slide along the two guide rods 12 under the action of the transmission rod 10 on one side of the limiting rod 9, and compress the two springs 13. Under the action of the receiving plate 11, the other limiting rod 9 and the transmission rod 10 move synchronously, and the two limiting rods 9 rotate toward each other at the same time. As the limiting rods 9 rotate, the two rotating shafts 8 rotate synchronously, and drive their corresponding slots 14 to rotate synchronously. When the two... When the limit rod 19 rotates to its limit position, the two limit rods 19 also contact the operating handle 3, thus limiting the operating handle 3. At the same time, the four slots 14 correspond to the ends of the two plates 15 respectively. Under the action of multiple springs 17, the ends of the two plates 15 are inserted into their respective slots 14, thereby fixing the position of the two rotating shafts 8. Under the action of the first limiting mechanism, the position of the operating handle 3 is limited, preventing the staff from accidentally touching the operating handle 3 and closing the pole-mounted circuit breaker during the maintenance of the pole-mounted circuit breaker, which could endanger the staff's lives.

[0036] The default state of the energy storage handle 4 is inclined when not in use. When the energy storage handle 4 is limited, the limiting rod three 20 is first rotated, the limiting rod three 20 drives the rotating shaft two 18 to rotate synchronously, the spring three 21 at the bottom of the limiting rod three 20 is stretched under force, the clamping grooves two 22 at both ends of the rotating shaft two 18 rotate synchronously, when the two clamping grooves two 22 correspond to the two clamping plates two 23, the two clamping plates two 23 move towards the rotating shaft two 18 under the elastic force of the corresponding spring four 25, one end of the two clamping plates two 23 is inserted into the corresponding clamping groove two 22, the limiting rod three 20 is fixed, and under the action of the limiting rod two 19, the energy storage handle 4 is limited. Under the action of the second limiting mechanism, the position of the energy storage handle 4 is limited, so as to avoid the staff from touching the energy storage handle 4 by mistake during the process of overhauling the circuit breaker on the column, and storing energy in the operating mechanism;

[0037] During the above process of limiting the energy storage handle 4 by the limiting rod three 20, the connecting rod 29 rotates synchronously under the action of the limiting rod three 20, the limiting shaft 30 at the end of the connecting rod 29 away from the limiting rod three 20 acts on the connecting groove 28 at the bottom, the connecting block 26 pulls the limiting rod two 19 to move downwards synchronously, the spring five 27 at the top of the connecting block 26 is stretched under force, and the limiting rod two 19 is close to the limiting rod three 20, so as to fix the position of the energy storage handle 4. Under the action of the auxiliary assembly, the limiting rod two 19 can move slightly in the vertical direction. When the staff uses the insulating rod to pull the energy storage handle 4 to store energy in the mechanism box 1, the energy storage handle 4 will touch the limiting rod two 19 during rotation. At this time, the limiting rod two 19 drives the connecting block 26 to move synchronously, and the spring five 27 is pressed under force, so as to avoid the rigid contact between the energy storage handle 4 and the limiting rod two 19;

[0038] After the overhauling work is completed, the adjusting plate 33 moves downwards under the action of the two guide rods four 34, and the four push plates 35 move downwards synchronously, the four push plates 35 act on the corresponding clamping plate one 15 and clamping plate two 23 respectively, so that the two clamping plate one 15 is separated from the corresponding clamping groove one 14, and the two clamping plate two 23 is separated from the corresponding clamping groove two 22, and the two limiting rods one 9, the limiting rod two 19 and the limiting rod three 20 are reset.

[0039] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying any such actual relationship or order between these entities or actions. Moreover, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0040] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous changes, modifications, substitutions and variations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker that is easy to install, comprising a mechanism box (1), two drive shafts (2) rotatably mounted on one end of the mechanism box (1), an operating handle (3) respectively fixed to the outside of one end of the two drive shafts (2), and an energy storage handle (4), characterized in that: The mechanism box (1) is fixedly installed with a mounting base (7) on the side near the operating handle (3) and the energy storage handle (4). The mounting base (7) is provided with a first limiting mechanism, a second limiting mechanism and an unlocking mechanism. The first limiting mechanism cooperates with the operating handle (3) and the second limiting mechanism cooperates with the energy storage handle (4). The first limiting mechanism includes two rotating shafts (8) and two first locking components. The two rotating shafts (8) are rotatably installed inside the mounting base (7). Limiting rods (9) are fixedly sleeved on the outside of the two rotating shafts (8). Transmission rods (10) are rotatably installed on the side of the two limiting rods (9) that are close to each other. A receiving plate (11) is rotatably installed on the end of the two transmission rods (10) that are close to each other. Guide rods (12) are slidably sleeved on both ends inside the receiving plate (11). Springs (13) are sleeved on the outside of the two guide rods (12). The two guide rods (12) are fixedly installed inside the mounting base (7). The two first locking components are symmetrically arranged on both sides of the two limiting rods (9). The second limiting mechanism includes a second rotating shaft (18), a second limiting rod (19), an auxiliary component, and two second locking components. The second rotating shaft (18) is rotatably installed inside the mounting base (7). A third limiting rod (20) is fixedly sleeved on the outside of the second rotating shaft (18). A third spring (21) is fixedly installed at the bottom of the third limiting rod (20). The end of the third spring (21) away from the third limiting rod (20) is fixedly connected to the inner wall of the mounting base (7). The two second locking components are symmetrically arranged on both sides of the third limiting rod (20).

2. The easy-to-install integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: The mechanism box (1) is provided with two indicator nameplates (5) and two indicator marks (6) on the side near the operating handle (3). The two indicator nameplates (5) are fixedly connected to the mechanism box (1), and the two indicator marks (6) are rotatably connected to the mechanism box (1). The two indicator nameplates (5) cooperate with the two indicator marks (6) respectively.

3. The easy-to-install integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: The first locking component includes two slots (14) and a locking plate (15). The two slots (14) are respectively opened at the same end of the two rotating shafts (8). The two ends of the locking plate (15) are respectively engaged with the two slots (14). The two ends of the locking plate (15) are slidably fitted with guide rods (16). The two guide rods (16) are fixedly installed inside the mounting base (7). The two guide rods (16) are fitted with springs (17) on the outside.

4. The easy-to-install integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: The auxiliary component includes a connecting block (26), which is slidably fitted inside the mounting base (7). The connecting block (26) is fixedly connected to the second limiting rod (19). A spring (27) is fixedly installed between the top of the connecting block (26) and the inner wall of the mounting base (7). A connecting groove (28) is provided at the bottom of the connecting block (26). A connecting rod (29) is provided at the bottom of the connecting block (26). The connecting rod (29) is rotatably installed inside the mounting base (7). Limiting shafts (30) are fixedly installed at both ends of the connecting rod (29). A strip groove (31) is provided inside the third limiting rod (20). The two limiting shafts (30) are respectively movably installed inside their respective strip grooves (31) and connecting grooves (28).

5. The easy-to-install integrated primary and secondary pole-mounted circuit breaker according to claim 1, characterized in that: The second locking component includes a second slot (22) and a second plate (23). The second slot (22) is opened at one end of the second rotating shaft (18). The second slot (22) and the second plate (23) cooperate with each other. Both ends of the second plate (23) are slidably fitted with guide rods (24). Both guide rods (24) are fixedly installed inside the mounting base (7). One end of both guide rods (24) is fitted with a spring (25).

6. The easy-to-install integrated primary and secondary pole-mounted circuit breaker according to claim 3, characterized in that: The unlocking mechanism includes a threaded rod (32), which is threadedly connected to the mounting base (7). An adjusting plate (33) is rotatably connected to the bottom of the threaded rod (32). Guide rods (34) are slidably sleeved at both ends of the adjusting plate (33). Both guide rods (34) are fixedly installed inside the mounting base (7). Four push plates (35) are fixedly installed at the bottom of the adjusting plate (33). The four push plates (35) cooperate with their respective corresponding locking plates (15) and locking plates (23).

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