A pole-mounted circuit breaker

Abstract

The present application relates to a pole-mounted circuit breaker, which relates to the technical field of circuit breakers. It includes a circuit breaker body and a disconnector. A support frame for supporting the disconnector is fixedly provided on the side of the circuit breaker body, and a driving rod for controlling the opening and closing of the disconnector is rotatably provided on the support frame; an operating rod and an adjusting rod are respectively fixed to the outer periphery of both ends of the driving rod, and an adjusting electric cylinder is hinged on the side of the circuit breaker body away from the operating rod. The output shaft end of the adjusting electric cylinder is hinged to the end of the adjusting rod away from the driving rod, and the adjusting electric cylinder drives the driving rod to rotate through the adjusting rod when it is in operation; in the present application, the manual control structure and the remote control structure of the disconnector are respectively arranged at the two ends of the driving rod, so that they are respectively located near the two opposite sides of the circuit breaker body, so that there is enough space to disassemble and assemble parts during later maintenance, thereby reducing the time spent on maintenance and improving the corresponding maintenance efficiency.

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, a crucial component of the power system, are installed on utility poles and are responsible for automatically shutting off power in emergencies, protecting equipment and personnel from electric shock. For county-level power supply companies, ensuring the proper management and maintenance of these circuit breakers, incorporating them into standardized, systematic management systems, is the cornerstone of maintaining enterprise safety management and power supply reliability.

[0003] Current pole-mounted vacuum circuit breakers consist primarily of two main components: the circuit breaker body and the disconnector. The circuit breaker body houses core components such as the operating mechanism and vacuum container, while the operating mechanism controls the closing and opening of the circuit breaker and disconnector. To provide flexibility in manual control, a manual operating lever is added to the disconnector side, allowing the operator to manually adjust the disconnector's status when necessary. In actual operation, opening the circuit breaker requires first placing the circuit breaker body in the open position using the operating mechanism (or manual operating lever) before operating the disconnector. Closing the circuit breaker is the opposite process: first operate the disconnector, then close the circuit breaker body.

[0004] However, the current design presents a challenge: the operating mechanism that controls the disconnector and the manual operating lever are typically located on the same side of the circuit breaker body. This results in a dense cluster of connecting rods and components in this area, a compact layout, and limited clearance. This design not only increases the difficulty of routine maintenance but also limits the efficiency of repair operations, particularly during delicate operations or troubleshooting, creating unnecessary challenges for operators. This leaves room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide a pole-mounted circuit breaker to solve the problem in the above-mentioned related art that the part of the operating mechanism that controls the disconnector is designed together with the manual operating lever, which affects the subsequent maintenance efficiency and there is room for improvement.

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

[0007] A pole-mounted circuit breaker comprises a circuit breaker body and an isolating switch. A support frame for supporting the isolating switch is fixedly provided on the side of the circuit breaker body. A driving rod for controlling the opening and closing of the isolating switch is rotatably provided on the support frame. An operating rod and an adjusting rod are respectively fixedly provided on the outer periphery of both ends of the driving rod. An adjusting electric cylinder is hingedly connected to the side of the circuit breaker body away from the operating rod. The output shaft end of the adjusting electric cylinder is hingedly connected to the end of the adjusting rod away from the driving rod. When the adjusting electric cylinder is in operation, the driving rod is driven to rotate via the adjusting rod.

[0008] By adopting the above technical solution, the manual control structure and remote control structure of the disconnector are respectively arranged at the two ends of the driving rod, so that they are respectively located near the two opposite sides of the circuit breaker body, so that there is enough space to disassemble and assemble parts during later maintenance, thereby reducing the time spent on maintenance and improving the corresponding maintenance efficiency.

[0009] Optionally, a base plate is provided below the circuit breaker body, a plurality of support rods are fixed on the base plate, and upper ends of the support rods are fixedly connected to the bottom side of the circuit breaker body.

[0010] By adopting the above technical solution, due to the arrangement of the base plate and the support rods on the base plate, a gap is created between the bottom side of the circuit breaker body and the mounting surface when the pole-mounted circuit breaker is installed. In heavy rainy weather, the erosion of the bottom side of the circuit breaker body by rainwater on the mounting surface is reduced, thereby improving the corresponding waterproof performance.

[0011] Optionally, a plurality of rollers are provided on the bottom side of the base plate, and a traction handle is hingedly connected to the side of the base plate facing the circuit breaker body, and the traction handle can be rotated, adjusted and fixed.

[0012] By adopting the above technical solution, due to the coordinated arrangement of the traction handle and the roller, when the pole-mounted circuit breaker needs to be moved a short distance before installation, the staff can control the traction handle to quickly drag the base plate to slide on the ground.

[0013] Optionally, a receiving groove for the roller to be placed is provided on the bottom side of the base plate, a fixing rod is provided on the base plate, one end of which is rotatably connected to the roller, and a fixing through hole is provided on the base plate for the fixing rod to pass through and communicate with the receiving groove; a control member is provided on the base plate, and the traction handle can squeeze the fixing rod through the control member to cause the roller to protrude from the opening of the receiving groove.

[0014] By adopting the above technical solution, when the circuit breaker needs to be moved, the pulling handle can be rotated to a certain angle to squeeze the upper end of the fixed rod through the control member, thereby causing the roller to protrude from the lower opening of the accommodating groove; when the pole-mounted circuit breaker is installed on a certain mounting surface, the pulling handle can be rotated so that the roller is completely placed inside the accommodating groove.

[0015] Optionally, a fixed retaining ring is fixed on the outer periphery of the fixed rod, a fixed sink groove for insertion and sliding up and down is provided on the opening edge of the fixed through hole facing the circuit breaker body, and a compression spring is provided on the base plate, with both ends fixedly connected to the bottom side of the fixed sink groove and the lower side of the fixed retaining ring respectively.

[0016] By adopting the above technical solution, due to the coordinated arrangement of the fixed retaining ring and the compression spring, when the control member does not squeeze the upper end of the fixed rod, the compression spring squeezes the fixed retaining ring, causing the fixed rod and the roller to automatically move upward as a whole until the roller is completely placed in the accommodating groove, thereby facilitating the storage of the roller and reducing the possibility of the roller protruding from the accommodating groove in a natural state.

[0017] Optionally, the control component includes a control plate slidably mounted on the side of the substrate facing the circuit breaker body, and a positioning protrusion fixed on one side of the control plate; a connecting rod is hinged on the outer periphery of the traction handle, and the other end of the connecting rod is hinged to one end of the control plate; a guiding inclined surface that can abut against the positioning protrusion is provided on the edge of the upper end portion of the fixed rod.

[0018] By adopting the above technical solution, when the traction handle is rotated, the control plate is driven to slide back and forth on the base plate through the connecting rod, so that the positioning protrusion on the control plate slides along the guide inclined surface until it abuts against the upper end of the fixed rod, thereby moving the roller connected to the lower end of the fixed rod out of the opening of the accommodating groove; when the positioning protrusion and the fixed rod are misaligned and not abutted, the roller is completely placed into the accommodating groove under the influence of the weight of the base plate.

[0019] Optionally, a limit plate located above the control panel is provided on the side of the circuit breaker body, and a damping spring is fixedly provided on the side of the limit plate facing the control panel; a support block is fixedly provided on the side of the control panel away from the base panel, and a guide slope is provided on the side edge of the support block facing the damping spring, and the upper side surface of the support block can slide along the guide slope until it abuts against the lower side of the damping spring, and the positioning protrusion and the fixing rod are misaligned and not abutted in this state.

[0020] By adopting the above technical solution, when the positioning protrusion and the fixing rod are in a misaligned and non-abutting state, due to the coordinated arrangement of the damping spring and the support block, the upper side surface of the support block can slide along the guide slope to a position abutting against the lower side of the damping spring, thereby better supporting the circuit breaker body and improving the installation stability of the circuit breaker body in this state.

[0021] Optionally, a receiving plate is fixed on the side of the support frame away from the circuit breaker body, and the pulling handle can be rotated to abut against the bottom side of the receiving plate and fixed, and the positioning protrusion and the fixing rod are misaligned and not abutted in this state.

[0022] By adopting the above technical solution, when the positioning protrusion and the fixing rod are misaligned and not in contact, the pulling handle is rotated to abut against the receiving plate, thereby improving the overall installation stability of the column-mounted circuit breaker in this state.

[0023] Optionally, an elastic pad is fixedly provided on the outer periphery of the traction handle, and anti-slip grooves are provided on the surface of the elastic pad.

[0024] By adopting the above technical solution, due to the provision of the elastic pad, it is convenient for the user to better control the traction handle, and the stability of the traction handle when it abuts against the bottom side of the receiving plate is improved.

[0025] Optionally, a limiting groove for the traction handle to rotate into is provided on the side of the receiving plate facing the base plate.

[0026] By adopting the above technical solution, when the traction handle abuts against the bottom side of the receiving plate, due to the setting of the upper limit groove on the bottom side of the receiving plate, a part of the traction handle rotates into the limit groove and abuts against the inner wall of the limit groove, further improving the stability of the traction handle when abutting against the bottom side of the receiving plate.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The manual control structure and remote control structure of the disconnector are respectively set at the two ends of the driving rod, so that they are respectively near the two opposite sides of the circuit breaker body, so that there is enough space to disassemble and assemble parts during later maintenance, thereby reducing the time spent on maintenance and improving the corresponding maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. 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 any creative work.

[0030] Figure 1 This is a schematic diagram of the structure of the adjustment cylinder and the adjustment rod according to the first embodiment of the present application;

[0031] Figure 2 This is a schematic diagram of the structure of the operating lever installation and coordination embodiment 1 of the present application;

[0032] Figure 3 This is a schematic diagram of the overall structure of Example 2 of the present application;

[0033] Figure 4 This is a partial cross-sectional structural diagram of the second embodiment of the present application, showing the installation and coordination of the hinged seat and the traction handle;

[0034] Figure 5 This is a partial cross-sectional structural diagram of the second embodiment of the present application showing the installation and coordination of the roller and the control member;

[0035] Figure 6 This is a structural diagram showing the installation distribution of the fixed retaining ring and the fixed rod in Example 2 of the present application;

[0036] Figure 7 This is a partial cross-sectional structural diagram of the second embodiment of the present application showing the installation and cooperation between the fixed retaining ring and the fixed rod;

[0037] Figure 8 This is a partial cross-sectional structural diagram of the installation and coordination of the traction handle according to the second embodiment of the present application;

[0038] Figure 9 This is a partial structural diagram of the installation and coordination of the traction handle according to Example 2 of the present application.

[0039] In the figure, 1. circuit breaker body; 11. adjusting electric cylinder; 12. limit plate; 13. damping spring; 2. isolating switch; 3. support frame; 31. driving rod; 32. operating rod; 33. adjusting rod; 34. receiving plate; 341. limit groove; 4. base plate; 41. support rod; 42. hinge seat; 421. locking through hole; 43. receiving groove; 44. fixing through hole; 45. fixing groove; 5. roller; 51. fixing rod; 511. guide slope; 52. fixing retaining ring; 53. compression spring; 6. traction handle; 61. locking screw hole; 62. elastic pad; 7. control part; 71. control board; 72. positioning protrusion; 73. connecting rod; 74. support block; 741. guide slope; 8. locking screw. DETAILED DESCRIPTION

[0040] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0041] Example 1:

[0042] Reference Figure 1 and Figure 2 A pole-mounted circuit breaker includes a circuit breaker body 1 and a disconnector 2. A support frame 3 for supporting the disconnector 2 is fixedly provided on the side of the circuit breaker body 1, and a driving rod 31 is rotatably provided on the support frame 3. When the driving rod 31 rotates, it can control the disconnector 2 to open or close through a connecting rod structure. This is a conventional transmission structure and will not be described in detail here.

[0043] An operating rod 32 and an adjusting rod 33 are respectively fixed to the outer periphery of both ends of the driving rod 31. An adjusting electric cylinder 11 is hinged on the side of the circuit breaker body 1 away from the operating rod 32. The output shaft end of the adjusting electric cylinder 11 is hinged to the end of the adjusting rod 33 away from the driving rod 31. When the adjusting electric cylinder 11 is in operation, it drives the driving rod 31 to rotate through the adjusting rod 33.

[0044] The implementation principle of the embodiment of this application is:

[0045] When manually controlling the opening and closing of the disconnector 2, the operator can drive the driving rod 31 to rotate by controlling the operating lever 32, thereby causing the disconnector 2 to be opened and closed accordingly; when the disconnector 2 needs to be opened and closed remotely, the adjusting electric cylinder 11 is started to adjust its overall length, and then the rotation of the adjusting rod 33 and the driving rod 31 is controlled by adjusting the hinges at both ends of the electric cylinder 11, thereby finally realizing the opening and closing of the disconnector 2.

[0046] Example 2:

[0047] Reference Figure 3 、 Figure 4 and Figure 5 The embodiment of the present application differs from the first embodiment in that a base plate 4 is provided below the circuit breaker body 1, and four support rods 41 are fixedly provided on the base plate 4. The upper ends of the support rods 41 are fixedly connected to the four corners of the bottom side of the circuit breaker body 1; four rollers 5 are provided on the bottom side of the base plate 4, and a pulling handle 6 is hingedly connected to the side of the base plate 4 facing the circuit breaker body 1, and the pulling handle 6 can be rotated and adjusted to a certain angle and fixed;

[0048] A hinged seat 42 is fixedly provided on the base plate 4 and is rotatably connected to the traction handle 6 through a rotating shaft. Three locking through holes 421 are evenly distributed on the hinged seat 42. A locking screw hole 61 that can coincide with the locking through hole 421 is provided on the traction handle 6. A locking screw 8 that can pass through the locking through hole 421 and be screwed into the locking screw hole 61 is provided on the base, and the locking screw 8 is a butterfly screw.

[0049] Reference Figure 5 A receiving groove 43 for the roller 5 to be placed is provided on the bottom side of the base plate 4, and a fixing rod 51 is provided on the base plate 4, one end of which is rotatably connected to the roller 5. A fixing through hole 44 is provided on the base plate 4 for the fixing rod 51 to pass through and communicate with the receiving groove 43; a control member 7 is provided on the base plate 4, and when the traction handle 6 is rotated at a certain angle, the upper end of the fixing rod 51 can be squeezed by the control member 7, thereby causing the roller 5 to protrude from the lower opening of the receiving groove 43.

[0050] Reference Figure 5 and Figure 6The control member 7 includes a control plate 71 slidably mounted on the side of the base plate 4 facing the circuit breaker body 1, and a positioning protrusion 72 fixed to one side of the control plate 71. A connecting rod 73 is hingedly connected to the outer periphery of the pulling handle 6, and the other end of the connecting rod 73 is hingedly connected to one end of the control plate 71. A guiding slope 511 is provided on the edge of the upper end of the fixing rod 51, which can abut against the positioning protrusion 72.

[0051] When the traction handle 6 is rotated, the control plate 71 is driven to slide back and forth on the base plate 4 through the connecting rod 73, so that the positioning protrusion 72 on the control plate 71 slides along the guiding inclined surface 511 until it abuts against the upper end of the fixing rod 51, thereby moving the roller 5 connected to the lower end of the fixing rod 51 out of the opening of the accommodating groove 43. In this state, the pole-mounted circuit breaker can be easily moved over a short distance.

[0052] Reference Figure 6 and Figure 7 A fixed retaining ring 52 is integrally formed on the outer periphery of the fixed rod 51, and a fixed recess 45 is provided on the opening edge of the fixed through hole 44 facing the circuit breaker body 1, which is inserted and slides up and down. A compression spring 53 is provided on the base plate 4 with two ends fixedly connected to the bottom side of the fixed recess 45 and the lower side of the fixed retaining ring 52 respectively;

[0053] When the positioning protrusion 72 and the fixing rod 51 are misaligned and not in contact, the compression spring 53 squeezes the fixing retaining ring 52, causing the fixing rod 51 and the roller 5 to move upward as a whole until the roller 5 is completely placed in the accommodating groove 43; when the positioning protrusion 72 squeezes the upper end of the fixing rod 51, the compression spring 53 is compressed, and the fixing rod 51 and the roller 5 move downward as a whole.

[0054] Reference Figure 7 A limit plate 12 is provided on the side of the circuit breaker body 1, located above the control board 71. A damping spring 13 is fixedly provided on the side of the limit plate 12 facing the control board 71. The damping spring 13 is of conventional structure and will not be described in detail here. A support block 74 is fixedly provided on the side of the control board 71 away from the base plate 4, and a guide slope 741 is provided on the side edge of the support block 74 facing the damping spring 13.

[0055] When the positioning protrusion 72 and the fixing rod 51 are misaligned and not in contact, the upper side of the support block 74 can slide along the guide slope 741 to abut against the lower side of the damping spring 13, thereby better supporting the circuit breaker body 1.

[0056] Reference Figure 7 、 Figure 8 and Figure 9A rubber elastic pad 62 is fixed on the outer periphery of the pulling handle 6, wherein the surface of the elastic pad 62 is integrally formed with anti-slip grooves; a receiving plate 34 is fixed on the side of the support frame 3 away from the circuit breaker body 1, and a limiting groove 341 is formed on the side of the receiving plate 34 facing the base plate 4 for the pulling handle 6 to rotate into;

[0057] The traction handle 6 can be rotated into the limiting groove 341 on the bottom side of the receiving plate 34 and fixed. In this state, the outer side surface of the elastic pad 62 on the traction handle 6 is tightly pressed against the inner wall of the limiting groove 341, the positioning protrusion 72 and the fixing rod 51 are misaligned and not in contact, and the upper side surface of the support block 74 is in contact with the lower side of the damping spring 13.

[0058] The implementation principle of the embodiment of this application is:

[0059] When the pole-mounted circuit breaker needs to be moved a short distance, the traction handle 6 is rotated to a certain angle and fixed. During this process, the control board 71 is driven to slide on the base plate 4 by the connecting rod 73, so that the positioning protrusion 72 on the control board 71 slides along the guide inclined surface 511 until it abuts against the upper end of the fixing rod 51, and the roller 5 connected to the lower end of the fixing rod 51 protrudes from the opening of the accommodating groove 43. In this state, the traction handle 6 plays a role in facilitating movement and traction.

[0060] When the circuit breaker on the column is installed and fixed, the pulling handle 6 is rotated into the limiting groove 341 on the bottom side of the receiving plate 34 and fixed. During this process, the control plate 71 is driven by the connecting rod 73, so that the positioning protrusion 72 on the control plate 71 and the fixing rod 51 are misaligned and do not abut. The support block 74 on the control plate 71 slides along the guide inclined surface 741 to a position abutting the lower side of the damping spring 13, and finally the base plate 4 is fixed to the surface to be installed; in this state, the pulling handle 6 supports the support frame 3, and the combination of the support block 74 and the damping spring 13 supports and reduces shock for the circuit breaker body 1.

[0061] Unless otherwise defined, the terms or scientific terms used in this application should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "A" or "one" and other similar words do not indicate a quantity limit, but rather indicate the existence of at least one. "Include" or "comprising" and other similar words mean that the elements or objects appearing before "include" or "comprising" cover the elements or objects listed after "include" or "comprising" 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.

[0062] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A pole mounted circuit breaker, characterized in that: The invention comprises a circuit breaker body (1) and an isolating switch (2); a support frame (3) for supporting the isolating switch (2) is fixedly provided on the side of the circuit breaker body (1); a driving rod (31) for controlling the opening and closing of the isolating switch (2) is rotatably provided on the support frame (3); an operating rod (32) and an adjusting rod (33) are fixedly provided on the outer periphery of both ends of the driving rod (31); an adjusting electric cylinder (11) is hingedly connected to the side of the circuit breaker body (1) away from the operating rod (32); the output shaft end of the adjusting electric cylinder (11) is hingedly connected to the end of the adjusting rod (33) away from the driving rod (31); and when the adjusting electric cylinder (11) is in operation, the driving rod (31) is driven to rotate via the adjusting rod (33); A base plate (4) is provided below the circuit breaker body (1), and a plurality of support rods (41) are fixedly provided on the base plate (4), and the upper ends of the support rods (41) are fixedly connected to the bottom side of the circuit breaker body (1); a plurality of rollers (5) are provided on the bottom side of the base plate (4), and a traction handle (6) is hingedly connected to the side of the base plate (4) facing the circuit breaker body (1), and the traction handle (6) can be rotated, adjusted, and fixed; A receiving groove (43) for the roller (5) to be placed is provided on the bottom side of the base plate (4); a fixing rod (51) is provided on the base plate (4) with one end rotatably connected to the roller (5); a fixing through hole (44) is provided on the base plate (4) for the fixing rod (51) to pass through and is in communication with the receiving groove (43); a control member (7) is provided on the base plate (4); the traction handle (6) can squeeze the fixing rod (51) through the control member (7) to make the roller (5) protrude from the opening of the receiving groove (43); The control member (7) comprises a control plate (71) slidably mounted on the side of the base plate (4) facing the circuit breaker body (1), and a positioning protrusion (72) fixed on one side of the control plate (71); a connecting rod (73) is hingedly connected to the outer periphery of the traction handle (6); the other end of the connecting rod (73) is hingedly connected to one end of the control plate (71); and a guiding inclined surface (511) capable of abutting against the positioning protrusion (72) is provided on the edge of the upper end of the fixing rod (51); A limit plate (12) located above the control panel (71) is provided on the side of the circuit breaker body (1), and a damping spring (13) is fixedly provided on the side of the limit plate (12) facing the control panel (71); a support block (74) is fixedly provided on the side of the control panel (71) away from the base plate (4), and a guide slope (741) is provided on the side edge of the support block (74) facing the damping spring (13); the upper side of the support block (74) can slide along the guide slope (741) to a position abutting against the lower side of the damping spring (13), and the positioning protrusion (72) and the fixing rod (51) are misaligned and not abutting in this state; A receiving plate (34) is fixedly provided on the side of the support frame (3) away from the circuit breaker body (1); the pulling handle (6) can be rotated to abut against the bottom side of the receiving plate (34) and fixed; the positioning protrusion (72) and the fixing rod (51) are misaligned and not in contact in this state; and a limiting groove (341) for the pulling handle (6) to rotate into is provided on the side of the receiving plate (34) facing the base plate (4).

2. The pole mounted circuit breaker according to claim 1, characterized in that: A fixed retaining ring (52) is fixedly provided on the outer periphery of the fixed rod (51); a fixed sunken groove (45) is provided on the opening edge of the fixed through hole (44) facing the circuit breaker body (1) for insertion and upward and downward sliding; and a compression spring (53) is provided on the base plate (4) with two ends respectively fixedly connected to the bottom side of the fixed sunken groove (45) and the lower side of the fixed retaining ring (52).

3. The pole mounted circuit breaker according to claim 1, characterized in that: An elastic pad (62) is fixedly provided on the outer periphery of the traction handle (6), and anti-slip grooves are provided on the surface of the elastic pad (62).

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