Primary and secondary fusion pole-mounted circuit breaker easy to overhaul

Abstract

The utility model provides a primary and secondary fusion pole-mounted circuit breaker easy to overhaul, which comprises a circuit breaker body and a circuit breaker support, and the circuit breaker support comprises a movable support and a fixed support. The fixed support is suitable for being fixedly connected with an external telegraph pole, the movable support comprises a top frame, a bottom frame, a vertical frame and a lever block, the top frame and the bottom frame are fixedly connected to the upper end and the lower end of the vertical frame respectively, the top frame is suitable for being detachably connected with a circuit breaker body, and the vertical frame is fixedly connected with a rotating shaft which is rotationally connected with the fixed support. The fixed support is rotationally connected with a worm, a rocker is arranged at the head end of the worm, a worm gear is arranged on the rotating shaft and meshed with the worm, and the vertical frame can be rotated to be upside down by shaking the rocker. The device overcomes the defect that in the prior art, when the circuit breaker is overhauled, a crane needs to participate in the hoisting process of the circuit breaker body, and the complexity of the overhauling task is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to power equipment technical field, concretely relates to a primary and secondary fusion pole circuit breaker easy to overhaul. BACKGROUND

[0002] The primary and secondary fusion pole circuit breaker is an intelligent power distribution equipment that fuses the circuit breaker body and measuring, control and protection devices, realizes data acquisition, fault diagnosis, automatic control and other functions through deep fusion technology, improves the reliability and intelligent level of the power distribution network, and has become an important equipment for upgrading the power distribution network. Since the installation position of the primary and secondary fusion pole circuit breaker is on a power pole, the overhaul of the equipment, especially the repair work of the faulty equipment, is often carried out by placing the equipment on the ground. Therefore, an operation of lowering the circuit breaker body to the ground is required before the overhaul, and the circuit breaker body needs to be hoisted to the original position after the overhaul. This process currently mainly needs the help of a crane, which makes the simple operation originally completed by the overhaul personnel become a multi-department collaborative operation that also needs the participation of special vehicles, greatly increasing the complexity of the overhaul task. SUMMARY

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the crane needs to participate in the hoisting process of the circuit breaker body during the circuit breaker overhaul operation in the prior art, and increase the complexity of the overhaul task.

[0004] To solve the above technical problems, the present application provides a primary and secondary fusion pole circuit breaker easy to overhaul, which comprises a circuit breaker body and a circuit breaker support, the circuit breaker support comprises a movable support and a fixed support,

[0005] The movable support comprises a top frame, a bottom frame, a vertical frame and a hand-operated hoist, the top frame and the bottom frame are fixedly connected to the upper and lower ends of the vertical frame respectively, the top frame is suitable for detachable connection with the circuit breaker body, the vertical frame is fixedly connected with a rotating shaft, the rotating shaft is rotatably connected with the fixed support, the fixed support is rotatably connected with a worm, a rocker is arranged at the head end of the worm, a worm wheel is arranged on the rotating shaft, the worm wheel is engaged with the worm, and the vertical frame can be rotated upside down by rocking the rocker;

[0006] The hand-operated hoist comprises a hoist body, a sling in transmission connection with the hoist body, and a lever rotatably connected to the hoist body and capable of controlling the lifting of the sling, the hoist body is arranged on the bottom frame, and the head end of the sling is connected to the bottom surface of the circuit breaker body.

[0007] Further, the movable support is a frame body in a hollow structure, the hand-operated hoist is arranged in the hollow structure of the movable support, and the lever extends out of the hollow structure of the movable support.

[0008] Further, the movable support further comprises an inclined support in an inclined posture, the inclined support being connected between the head end of the bottom support and the head end of the top support, the length of the bottom support being shorter than the length of the top support, the end of the hoist away from the cable being connected at the joint of the bottom support and the inclined support, and the lever being extended from the inclined surface of the inclined support.

[0009] Further, the bottom surface of the circuit breaker body is threadedly connected with a lifting ring, and the head end of the cable is provided with a lifting hook which is hooked in the lifting ring.

[0010] Further, the end of the hoist away from the cable is provided with a fastener, and the hoist is detachably connected with the bottom support through the fastener.

[0011] Further, the lifting ring and the fastener are arranged on the gravity center vertical line of the circuit breaker body in the length direction.

[0012] Further, the lifting ring is arranged on the gravity center vertical line of the circuit breaker body in the width direction, and a crossbar is arranged on the bottom support and crosses the bottom support; the crossbar is arranged in the width direction of the circuit breaker body, and the fastener is fastened on the crossbar and can slide along the crossbar.

[0013] Further, the fixed support comprises a box body, the worm gear and the worm are both rotationally connected in the box body, and the rocker is arranged outside the box body.

[0014] Further, the rocker is arranged at both ends of the worm.

[0015] Further, the two rockers are oppositely arranged.

[0016] By adopting the above technical scheme, the utility model has the following technical effects:

[0017] The primary and secondary fusion pole-mounted circuit breaker easy to overhaul provided by the utility model has the technical effects that: the movable support and the fixed support with the worm and gear mechanism are arranged, the self-locking function of the worm and gear mechanism can maintain the support function in daily life, when the overhaul is needed, the movable support can be turned over, the movable support acts as a hanging arm extending laterally from the telegraph pole, at this time, the worm and gear mechanism has the labor-saving feature, the weight of the circuit breaker body is not light, when the movable support and the circuit breaker body are rotated together, a great torsion force is needed, the labor-saving feature of the worm and gear mechanism enables a single operator to smoothly complete the rotation process; after the movable support becomes the hanging arm mode, the hoist can be used to complete the lowering and lifting of the circuit breaker body, only one person is needed to perform the high-altitude operation, at most, one ground staff is needed to cooperate, therefore, the crane is not needed to cooperate, the whole task process and the number of participants are simplified, and the overhaul cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art of the present application, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described in the following are some embodiments of the present application, and all other drawings obtained by those skilled in the art without creative labor based on these drawings also belong to the protection scope of the present application.

[0019] Figure 1 It is a structural schematic front view of the present application in a normal condition.

[0020] Figure 2 It is a structural schematic front view of the present application in a normal condition. Figure 1 It is a sectional view at A-A in the present application.

[0021] Figure 3 It is a structural schematic bottom view of the present application in a normal condition (not showing the circuit breaker body).

[0022] Figure 4 It is a structural schematic front view of the present application in a hoisting state.

[0023] Explanation of reference signs:

[0024] 1-hanging ring, 2-circuit breaker body, 3-fastening bolt, 4-top frame, 5-inclined frame, 6-hand-operated hoist, 7-bottom frame, 8-rotating shaft, 9-stand, 10-bolt seat, 11-box body, 12-rocker, 13-worm, 14-worm wheel, 15-bolt hole, 16-cross bar, 17-fastener, 18-hoist body, 19-pulling rod, 20-hanging rope, 21-hanging hook. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be described clearly and completely in the following by combining with the drawings. Obviously, the described embodiments are some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the present application.

[0026] It should be noted that in the description of the present application, the coordinate system used when describing the position is determined by the attitude of the front view, and the observation angle of the corresponding view is also named based on this as the reference. Therefore, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like in the present application indicate the position or location relationship based on the position or location relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application.

[0027] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication. For ordinary skilled in the art, the above-mentioned terms can be understood in the specific meaning in the utility model according to specific circumstances.

[0028] In addition, the technical features involved in different embodiments of the utility model described below can be combined with each other as long as there is no conflict.

[0029] The embodiment provides a primary and secondary fusion pole-mounted circuit breaker easy to overhaul, and in one embodiment, as shown in Figures 1 to 4 The circuit breaker support includes a movable support and a fixed support. A plurality of bolt seats 10 are arranged on the fixed support, and the fixed support can be fixedly connected with an external telegraph pole through U-shaped bolts.

[0030] The movable support includes a top frame 4, a bottom frame 7, a vertical frame 9 and a hand-operated hoist 6. The top frame 4 and the bottom frame 7 are fixedly connected to the upper and lower ends of the vertical frame 9 respectively. The top frame 4 is provided with a bolt hole 15, and the bolt hole 15 can be detachably connected with the circuit breaker body 2 through a fastening bolt 3. The vertical frame 9 is fixedly connected with a rotating shaft 8, the rotating shaft 8 is rotatably connected with the fixed support, the fixed support is rotatably connected with a worm 13, a rocker 12 is arranged at the head end of the worm 13, a worm wheel 14 is arranged on the rotating shaft 8, the worm wheel 14 is engaged with the worm 13, and the vertical frame 9 can be rotated upside down by rocking the rocker 12.

[0031] The hand-operated hoist 6 is the same as the existing hand-operated hoist, and includes a hoist body 18, a sling 20 and a lever 19. The sling 20 is in transmission connection with the hoist body 18, and the lever 19 is rotatably connected with the hoist body 18 and can control the lifting of the sling 20. The hoist body 18 is arranged on the bottom frame 7, and the head end of the sling 20 is connected to the bottom surface of the circuit breaker body 2. The reason why the hand-operated hoist 6 is selected instead of other hoisting equipment, especially a chain-controlled manual hoist, is that the structure of the hand-operated hoist 6 is more compact and the operation is more reliable. The hoisting chain and the control chain of the chain-controlled manual hoist are prone to entanglement, which affects the operation, and the control chain is inconvenient to store, and is also prone to entanglement with other parts of the support in daily use, which delays the smooth development of the overhaul work.

[0032] The device can maintain the normal function of the circuit breaker support in daily use because the relative position between the movable support and the fixed support can always be kept in self-locking state due to the existence of the worm gear mechanism, and the movable support and the fixed support will not rotate without reason. When maintenance is needed, the lever 12 is first shaken to make the stand 9 rotate upside down through the worm gear mechanism. Thus, the circuit breaker body 2 originally installed above the top stand 4 will rotate to the lower side of the movable support. Then, it is confirmed that the connection between the hoist body 18 and the movable support and the connection between the sling 20 and the circuit breaker body 2 are normal, and the lever 19 is operated to make the sling 20 straight. Then, the fastening bolt 3 fastening the circuit breaker body 2 is disassembled, and the circuit breaker body 2 is separated from the movable support. At this time, the whole device is in a hoisting state, and the circuit breaker body 2 is hung upside down, so the lever 19 can be operated to make the circuit breaker body 2 fall to the ground. The ground personnel can assist in lifting the suspended end of the circuit breaker body 2, so that the circuit breaker body 2 falls to the ground in a flat posture, and then the subsequent maintenance work is completed. After the maintenance is completed, the circuit breaker body 2 can be reset by reversing the above process.

[0033] The device can maintain the normal function of the circuit breaker support in daily use because the relative position between the movable support and the fixed support can always be kept in self-locking state due to the existence of the worm gear mechanism, and the movable support and the fixed support will not rotate without reason. When maintenance is needed, the lever 12 is first shaken to make the stand 9 rotate upside down through the worm gear mechanism. Thus, the circuit breaker body 2 originally installed above the top stand 4 will rotate to the lower side of the movable support. Then, it is confirmed that the connection between the hoist body 18 and the movable support and the connection between the sling 20 and the circuit breaker body 2 are normal, and the lever 19 is operated to make the sling 20 straight. Then, the fastening bolt 3 fastening the circuit breaker body 2 is disassembled, and the circuit breaker body 2 is separated from the movable support. At this time, the whole device is in a hoisting state, and the circuit breaker body 2 is hung upside down, so the lever 19 can be operated to make the circuit breaker body 2 fall to the ground. The ground personnel can assist in lifting the suspended end of the circuit breaker body 2, so that the circuit breaker body 2 falls to the ground in a flat posture, and then the subsequent maintenance work is completed. After the maintenance is completed, the circuit breaker body 2 can be reset by reversing the above process.

[0034] Based on the above embodiment, in a preferred embodiment, as shown in Figures 1 to 4 The movable support is a frame body with a hollow structure, the hand-operated hoist 6 is arranged in the hollow structure of the movable support, and the lever 19 extends out of the hollow structure of the movable support. This arrangement can improve the compactness of the whole device and fully utilize the hollow space of the movable support to realize the corresponding function without increasing the external size of the equipment.

[0035] Based on the above embodiment, in a preferred embodiment, as shown in Figures 1 to 4As shown, the movable support further comprises an inclined frame 5 in an inclined posture, the inclined frame 5 being connected between the head end of the bottom frame 7 and the head end of the top frame 4, the length of the bottom frame 7 being shorter than the length of the top frame 4, the gourd body 18 being connected at the joint of the bottom frame 7 and the inclined frame 5 away from the end of the sling 20, and the lever 19 extending from the inclined surface of the inclined frame 5. Because the lever 19 needs to be repeatedly pulled during the lifting and lowering of the circuit breaker body 2, the greater the amplitude of a single pulling, the higher the smoothness of the operation, the lifting and lowering speed will be relatively faster, and the physical energy of the operator can be saved. By setting the inclined frame 5 and making the lever 19 extend from the inclined surface of the inclined frame 5, a large swinging operation space can be provided for the lever 19, so that the amplitude of a single pulling of the lever 19 is increased as much as possible, and the operation smoothness is improved. In addition, after such setting, the hand-operated hoist 6 can be made as close as possible to the vertical line of the center of gravity of the circuit breaker body 2, so that the circuit breaker body 2 can maintain a good posture in the hoisting state, especially when the circuit breaker body 2 is just disconnected or needs to be fixed again, the posture of the circuit breaker body 2 in the hoisting state is required to be very high.

[0036] Based on the above embodiment, in a preferred embodiment, as shown in Figure 1 and 4 The bottom surface of the circuit breaker body 2 is threadedly connected with a lifting ring 1, and the head end of the sling 20 is provided with a lifting hook 21 which is hooked in the lifting ring 1. After such setting, the lifting hook 21 can be easily removed from the circuit breaker body 2 and the lifting ring 1 can be removed, so that the bottom surface of the circuit breaker body 2 is restored to be flat, thereby facilitating the maintenance in the erected posture.

[0037] Based on the above embodiment, in a preferred embodiment, as shown in Figure 3 and 4 The end of the gourd body 18 away from the sling 20 is provided with a buckle 17, and the gourd body 18 is detachably connected with the bottom frame 7 through the buckle 17. In combination with the above-mentioned detachable design between the hand-operated hoist 6 and the circuit breaker body 2, and the detachable connection between the hand-operated hoist 6 and the movable support through the buckle 17, the hand-operated hoist 6 can be detached from the entire device, so that only one hand-operated hoist 6 needs to be carried by the operator during maintenance, and the hand-operated hoist 6 can be used after being installed on site, without the need to configure a hand-operated hoist 6 on each device, thereby greatly reducing the cost of the device and avoiding the failure of the hand-operated hoist 6 caused by long-term exposure to outdoor wind and rain.

[0038] Based on the above embodiment, in a preferred embodiment, as shown in Figure 1 and 4As shown, the lifting ring 1 and the buckle 17 are arranged on the gravity vertical line of the circuit breaker body 2 in the length direction. The concept of the gravity vertical line is a vertical line drawn at the position of the gravity center. After the above arrangement, the lifting point can be arranged at the balanced position in the length direction of the circuit breaker body 2, so that the circuit breaker body 2 can be kept in a balanced posture without the help of excessive external force when the circuit breaker body 2 is unloaded or reinstalled, which is beneficial to the smooth disassembly and assembly.

[0039] Based on the above embodiment, in a preferred embodiment, as shown in Figure 3 The lifting ring 1 is arranged on the gravity vertical line of the circuit breaker body 2 in the width direction, and a cross bar 16 is arranged on the base frame 7 and crosses the base frame 7; the cross bar 16 is arranged in the width direction of the circuit breaker body 2, and the buckle 17 is buckled on the cross bar 16 and can slide along the cross bar 16. Similar to the above-mentioned balance in the length direction of the circuit breaker body 2, the circuit breaker body 2 in the lifting state can be balanced in the width direction after the arrangement of the present embodiment. The reason why the buckle 17 can slide on the cross bar 16 is that the gravity center of the circuit breaker body 2 usually has a large eccentricity in the width direction, that is, the balance point is not located near the center line of the width dimension, and the installation direction of the circuit breaker body 2 on the circuit breaker support will be different, so that the balance point of the circuit breaker body 2 in the width direction is not always located at a certain point on the movable support. Therefore, by allowing the buckle 17 to slide on the cross bar 16, the position of the buckle 17 can be adjusted according to the actual situation to fall on the corresponding balance point.

[0040] Based on the above embodiment, in a preferred embodiment, as shown in Figure 2 The fixed support includes a box body 11, the worm gear 14 and the worm 13 are both rotationally connected in the box body 11, and the rocker 12 is arranged outside the box body 11. Since the circuit breaker support is long-term outdoor, it will face wind and rain, and after the fixed support is arranged as the box body 11, the worm gear mechanism inside can be protected from external erosion, improving the service life and working reliability of the equipment.

[0041] Based on the above embodiment, in a preferred embodiment, as shown in Figure 2 As shown, the rocker 12 is arranged at both ends of the worm 13. Because there may be an unfavorable side for operation in the field environment, and there may be different dominant hands among the operating personnel, therefore, the rocker 12 is arranged on both sides of the fixed support, which can facilitate the operating personnel to select the appropriate operation surface according to the situation, and improve the adaptability of the equipment.

[0042] Based on the above embodiment, in a preferred embodiment, as shown in Figure 2As shown, the orientations of the two side rocker arms 12 are opposite to each other. After such arrangement, the operator can stand at the opposite sides of the fixed support, use both hands to simultaneously operate the two side rocker arms 12, and improve the fluency of the rocking operation through the alternating force of the left and right hands.

[0043] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and also impossible to exhaust all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker that is easy to maintain, characterized in that, It includes a circuit breaker body (2) and a circuit breaker bracket, the circuit breaker bracket including a movable bracket and a fixed bracket; the fixed bracket is adapted to be fixedly connected to an external utility pole. The movable support includes a top frame (4), a bottom frame (7), a vertical frame (9), and a lever hoist (6). The top frame (4) and the bottom frame (7) are fixedly connected to the upper and lower ends of the vertical frame (9), respectively. The top frame (4) is suitable for detachable connection with the circuit breaker body (2). The vertical frame (9) is fixedly connected to a rotating shaft (8), which is rotatably connected to the fixed support. The fixed support is rotatably connected to a worm gear (13). A rocker arm (12) is provided at the head end of the worm gear (13). A worm wheel (14) is provided on the rotating shaft (8). The worm wheel (14) meshes with the worm gear (13). By shaking the rocker arm (12), the vertical frame (9) can be rotated to be upside down. The lever hoist (6) includes a hoist body (18), a sling (20) that is connected to the hoist body (18) for transmission, and a lever (19) that is rotatably connected to the hoist body (18) and can control the lifting and lowering of the sling (20). The hoist body (18) is set on the base frame (7), and the head end of the sling (20) is connected to the bottom surface of the circuit breaker body (2).

2. The easy-to-maintain primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that, The movable support is a frame with a hollow structure. The lever hoist (6) is set inside the hollow structure of the movable support, and the lever (19) extends out of the hollow structure of the movable support.

3. The easy-to-maintain primary and secondary integrated pole-mounted circuit breaker according to claim 2, characterized in that, The movable support also includes an inclined frame (5) in an inclined posture. The inclined frame (5) is connected between the head end of the base frame (7) and the head end of the top frame (4). The length of the base frame (7) is shorter than the length of the top frame (4). The end of the hoist body (18) away from the sling (20) is connected to the junction of the base frame (7) and the inclined frame (5). The lever (19) extends from the inclined surface of the inclined frame (5).

4. The easily maintainable primary and secondary integrated pole-mounted circuit breaker according to any one of claims 1 to 3, characterized in that, The bottom surface of the circuit breaker body (2) is threaded with a lifting ring (1), and the head end of the sling (20) is provided with a hook (21), which is hooked inside the lifting ring (1).

5. The easy-to-maintain primary and secondary integrated pole-mounted circuit breaker according to claim 4, characterized in that, The hoist body (18) is provided with a fastener (17) at the end away from the sling (20), and the hoist body (18) is detachably connected to the base frame (7) through the fastener (17).

6. The easy-to-maintain primary and secondary integrated pole-mounted circuit breaker according to claim 5, characterized in that, The lifting ring (1) and the fastener (17) are located on the vertical line of the center of gravity of the circuit breaker body (2) along its length.

7. The easily maintainable primary and secondary integrated pole-mounted circuit breaker according to claim 6, characterized in that, The lifting ring (1) is set on the vertical line of the center of gravity in the width direction of the circuit breaker body (2), and a crossbar (16) is set on the base frame (7) across the base frame (7); the crossbar (16) is set along the width direction of the circuit breaker body (2), and the fastener (17) is fastened to the crossbar (16) and can slide along the crossbar (16).

8. The easily maintainable primary and secondary integrated pole-mounted circuit breaker according to any one of claims 1 to 3, characterized in that, The fixed bracket includes a housing (11), a worm gear (14) and a worm (13) which are rotatably connected inside the housing (11), and a rocker arm (12) located outside the housing (11).

9. The easy-to-maintain primary and secondary integrated pole-mounted circuit breaker according to claim 8, characterized in that, Rockers (12) are provided at both ends of the worm (13).

10. The easy-to-maintain primary and secondary integrated pole-mounted circuit breaker according to claim 9, characterized in that, The two rocker arms (12) are oriented opposite to each other.

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