Pole-mounted circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, and discloses a pole-mounted circuit breaker which comprises a shell, a switch pole is arranged above the shell, a current transformer is arranged on the side face of the shell, a connecting rod is arranged below the current transformer, one end, away from the current transformer, of the connecting rod is inserted into the shell, and the other end, away from the current transformer, of the connecting rod is inserted into the shell. The current transformer is connected with the switch pole, a supporting frame is arranged on the side face of the shell, the supporting frame abuts against the lower end face of the current transformer, and the connecting rod has the effect of reducing the damage probability of the connecting rod.

Description

Technical Field

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

[0002] Pole mounted circuit breakers are installed on utility poles and are used for grid connection, sectioning and branch line connection.

[0003] In the related art, a pole-mounted circuit breaker includes a housing, an upper end surface of the housing is provided with a pole, a side surface of the housing is provided with a connecting rod, and an end surface of the connecting rod away from the housing is provided with a current transformer.

[0004] When the pole-mounted circuit breaker is being transported, the pole-mounted circuit breaker will be vibrated, that is, the current transformer will exert force on the connecting rod, causing the connecting rod to be easily bent and damaged. Utility Model Content

[0005] In order to improve the service life of the connecting rod, the present application provides a pole-mounted circuit breaker.

[0006] The present application provides a pole-mounted circuit breaker, which adopts the following technical solution:

[0007] A pole-mounted circuit breaker comprises a shell, a switch pole is arranged above the shell, a current transformer is arranged on the side of the shell, a connecting rod is arranged below the current transformer, one end of the connecting rod away from the current transformer is inserted into the shell, the current transformer is connected to the switch pole, and a support frame is arranged on the side of the shell, and the support frame abuts against the lower end surface of the current transformer.

[0008] By adopting the above technical solution, the support frame contacts the lower end surface of the switch pole, which can share part of the gravity of the current transformer and reduce the gravity on the connecting rod. The connecting rod can be protected during transportation of the circuit breaker, reducing the probability of damage to the connecting rod and increasing the service life of the connecting rod.

[0009] Optionally, the support frame includes a vertical plate arranged on the side of the shell, a horizontal plate is arranged on the end surface of the vertical plate away from the shell, a reinforcing plate is arranged on the end surface of the vertical plate away from the shell, and the reinforcing plate is connected to the lower end surface of the horizontal plate.

[0010] By adopting the above technical solution, with the help of the reinforcing plate, on the one hand, the strength between the vertical plate and the horizontal plate can be improved, and on the other hand, the force acting on the horizontal plate can be better transferred to the vertical plate and the shell.

[0011] Optionally, a locking member connecting the vertical plate and the shell is provided between the two, and the locking member includes a bolt provided on the shell, the bolt passes through the shell and the vertical plate and is threadedly connected with a mounting nut.

[0012] By adopting the above technical solution, the support frame can be quickly installed on the shell or removed from the shell by means of bolts and mounting nuts.

[0013] Optionally, a mounting hole for the bolt to pass through is opened on the end surface of the vertical plate away from the shell, and the mounting hole is in the shape of a vertical waist-shaped hole.

[0014] By adopting the above technical solution, with the help of the mounting holes, the position of the support frame in the vertical direction can be adjusted, that is, the height of the support frame can be adjusted, so that the support frame can adapt to current sensors of different heights and the support frame can adapt to a variety of circuit breakers.

[0015] Optionally, an operation hole is provided on the upper end surface of the horizontal plate.

[0016] By adopting the above technical solution, the current transformer is inserted into the operating hole, which can limit the support frame and make it difficult for the support frame to move along the length direction of the shell.

[0017] Optionally, the operating hole penetrates the horizontal plate in a direction away from the vertical plate.

[0018] By adopting the above technical solution, the current transformer can be inserted into the operating hole more easily.

[0019] Optionally, a support plate is slidably provided on the end surface of the vertical plate away from the shell in the vertical direction, the support plate can contact with the connecting rod, and a limiting member for limiting the lifting of the support plate is provided on the vertical plate.

[0020] By adopting the above technical solution, part of the force applied to the support frame can be applied to the part of the connecting rod close to the shell with the help of the support plate, thereby reducing the force applied to the locking member, reducing the probability of damage to the locking member, and protecting the locking member.

[0021] Optionally, a limiting hole in the shape of a vertical waist-shaped hole is opened on the end surface of the support plate facing the vertical plate, and the limiting member includes a screw rod arranged on the end surface of the support plate facing the vertical plate, the screw rod is slidably arranged in the limiting hole, and the external thread of the screw rod is connected with a butterfly nut.

[0022] By adopting the above technical solution, the support plate can be driven to move in the vertical direction by loosening the butterfly nut, thereby adjusting the position of the support plate so that the support plate can be supported on the connecting rod.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The support frame contacts the lower end surface of the switch pole, which can share part of the gravity of the current transformer and reduce the gravity on the connecting rod. It can protect the connecting rod during transportation of the circuit breaker, reduce the probability of damage to the connecting rod, and increase the service life of the connecting rod;

[0025] 2. The mounting holes are opened to adjust the vertical position of the support frame and improve the adaptability of the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 is a schematic diagram of the structure of Example 1 of the present application;

[0028] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0029] Figure 3 It is a schematic diagram highlighting the support frame structure;

[0030] Figure 4 It is a schematic diagram of the structure of the support frame in Example 2.

[0031] Figure numerals: 1. Shell; 2. Switch pole; 3. Current transformer; 31. Operating column; 32. Connecting rod; 4. Support frame; 41. Vertical plate; 411. Mounting hole; 42. Horizontal plate; 421. Operating hole; 43. Reinforcement plate; 44. Locking piece; 441. Bolt; 442. Mounting nut; 5. Support plate; 51. Limiting hole; 6. Limiting piece; 61. Screw; 62. Butterfly nut. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] Example 1

[0034] This embodiment discloses a pole mounted circuit breaker. Figure 1 A pole-mounted circuit breaker comprises a shell 1, and three switch poles 2 are fixedly connected to the top of the shell 1. The three switch poles 2 are distributed in an array along the length direction of the shell 1.

[0035] Reference Figure 1 and Figure 2The housing 1 is provided with three current transformers 3 on the side along the width direction, and the three current transformers 3 are arranged in an array along the length direction of the housing 1. The three current transformers 3 are each aligned with a switch pole 2. The current transformer 3 is connected to the side of the switch pole 2, and the current transformer 3 includes an operating column 31. The lower end surface of the operating column 31 is connected with a connecting rod 32. The connecting rod 32 is inserted into the housing 1 from the side of the housing 1 away from the end surface of the current transformer 3.

[0036] Reference Figure 2 and Figure 3 The end surface of the housing 1 facing the current transformer 3 is provided with a support frame 4, and the support frame 4 is used to support the current transformer 3. The support frame 4 includes a vertical plate 41, a horizontal plate 42 and a reinforcing plate 43.

[0037] Reference Figure 2 and Figure 3 The end surface of the vertical plate 41 facing the housing 1 is provided with two mounting holes 411, and the two mounting holes 411 are distributed in the horizontal direction. The mounting holes 411 are in the shape of vertical waist holes.

[0038] Reference Figure 2 and Figure 3 A locking member 44 is provided between the vertical plate 41 and the housing 1 to connect the two. The locking member 44 is a bolt 441 and a mounting nut 442. The bolt 441 passes through the housing 1 and the mounting hole 411 in sequence, and one end of the bolt 441 extending outside the housing 1 is threadedly connected with the mounting nut 442.

[0039] Reference Figure 2 and Figure 3 The horizontal plate 42 is fixedly connected to the end surface of the vertical plate 41 away from the housing 1 . The reinforcing plate 43 is fixedly connected to the end surface of the vertical plate 41 away from the housing 1 , and the upper end surface of the reinforcing plate 43 is fixedly connected to the lower surface of the horizontal plate 42 .

[0040] Reference Figure 2 and Figure 3 The upper end surface of the horizontal plate 42 is provided with an operation hole 421, and the operation hole 421 penetrates the horizontal plate 42 in a direction away from the housing 1. The operation hole 421 can be inserted into the operation column 31.

[0041] The implementation principle of Example 1 is as follows: the horizontal plate 42 contacts the lower end surface of the current transformer 3. When the circuit breaker is vibrated, the force of the current transformer 3 is transmitted to the horizontal plate 42, and then transmitted to the shell 1 by the horizontal plate 42, the reinforcing plate 43, and the vertical plate 41, thereby reducing the force on the connecting rod 23, thereby protecting the connecting rod 32.

[0042] Example 2

[0043] Reference Figure 4The difference between this embodiment and embodiment 1 is that a support plate 5 is slidably provided at one end of the vertical plate 41 away from the housing 1, and the support plate 5 moves in the vertical direction. A limiting hole 51 is provided on the end surface of the support plate 5 facing the vertical plate 41, and the limiting hole 51 is in the shape of a vertical waist hole.

[0044] Reference Figure 4 The vertical plate 41 is provided with a limiter 6 for limiting the lifting of the support plate 5. The limiter 6 includes a screw 61 and a butterfly nut 62. The screw 61 is fixedly connected to the end face of the horizontal plate 42 away from the housing 1, and the screw 61 is slidably arranged in the limiter hole 51. The butterfly nut 62 is threadedly connected to the screw 61, and the butterfly nut 62 contacts the end face of the support plate 5 away from the horizontal plate 42.

[0045] The implementation principle of the second embodiment is: driving the support plate 5 to rise and fall, so that the lower side of the support plate 5 contacts the connecting rod 32 , and then rotating the butterfly nut 62 so that the butterfly nut 62 contacts the support plate 5 .

[0046] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0047] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A pole-mounted circuit breaker, comprising a housing (1), a switch pole (2) being arranged above the housing (1), characterized in that: A current transformer (3) is arranged on the side of the shell (1), a connecting rod (32) is arranged below the current transformer (3), one end of the connecting rod (32) away from the current transformer (3) is inserted into the shell (1), the current transformer (3) is connected to the switch pole (2), and a support frame (4) is arranged on the side of the shell (1), and the support frame (4) is in contact with the lower end surface of the current transformer (3).

2. A pole mounted circuit breaker according to claim 1, characterized in that: The support frame (4) comprises a vertical plate (41) arranged on the side of the shell (1), a horizontal plate (42) is arranged on the end surface of the vertical plate (41) away from the shell (1), a reinforcing plate (43) is arranged on the end surface of the vertical plate (41) away from the shell (1), and the reinforcing plate (43) is connected to the lower end surface of the horizontal plate (42).

3. A pole mounted circuit breaker according to claim 2, characterized in that: A locking member (44) is provided between the vertical plate (41) and the shell (1) to connect the two. The locking member (44) comprises a bolt (441) provided on the shell (1). The bolt (441) passes through the shell (1) and the vertical plate (41) and is threadedly connected with a mounting nut (442).

4. A pole mounted circuit breaker according to claim 3, characterized in that: The end surface of the vertical plate (41) away from the housing (1) is provided with a mounting hole (411) for the bolt (441) to pass through, and the mounting hole (411) is in the shape of a vertical waist hole.

5. A pole mounted circuit breaker according to claim 2, characterized in that: An operating hole (421) is provided on the upper end surface of the horizontal plate (42).

6. A pole mounted circuit breaker according to claim 5, characterized in that: The operation hole (421) penetrates the horizontal plate (42) in a direction away from the vertical plate (41).

7. A pole mounted circuit breaker according to claim 2, characterized in that: A support plate (5) is slidably arranged on the end surface of the vertical plate (41) away from the shell (1) in the vertical direction. The support plate (5) can contact the connecting rod (32). A limiting member (6) is arranged on the vertical plate (41) to limit the lifting of the support plate (5).

8. A pole mounted circuit breaker according to claim 7, characterized in that: The end surface of the support plate (5) facing the vertical plate (41) is provided with a limiting hole (51) in the shape of a vertical waist hole, and the limiting member (6) comprises a screw rod (61) arranged on the end surface of the support plate (5) facing the vertical plate (41), the screw rod (61) is slidably arranged in the limiting hole (51), and the screw rod (61) is externally threadedly connected with a butterfly nut (62).

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