Outdoor pole-mounted circuit breaker

Abstract

The utility model discloses an outdoor pole-mounted circuit breaker, and relates to the technical field of circuit breakers, the outdoor pole-mounted circuit breaker comprises a mounting base and a circuit breaker body, the top of the mounting base is fixedly provided with a hollow support column, the side part of the hollow support column is provided with a strip-shaped chute, and the strip-shaped chute is internally provided with a mounting plate in a sliding manner. The L-shaped fixing plate, the fixing inserting rod, the fixing inserting hole and the handle block are arranged in a matched mode, the connecting round block can be fixed or loosened, when the connecting round block is in a loosened state, the L-shaped hand crank can be rotated, and the L-shaped hand crank rotates to drive the mounting plate to move up and down through the control rotating shaft, the rope winding rotating disc, the vertical guide rod, the fixed pulley and the steel wire rope. Therefore, the purpose of lifting the circuit breaker body is achieved, a worker does not need to climb to a high place for maintenance work, the safety is good, the workload of the worker can be effectively relieved, maintenance work is facilitated, the operation is simple and convenient, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to an outdoor pole-mounted circuit breaker. Background Art

[0002] A circuit breaker is a switching device that can close, carry and disconnect current under normal circuit conditions and can close, carry and disconnect current under abnormal circuit conditions within a specified time. The function of a circuit breaker is to cut off and connect load circuits, as well as cut off fault circuits to prevent accidents from expanding and ensure safe operation.

[0003] Most of the existing outdoor pole-mounted circuit breakers are generally installed at high places. When the circuit breakers need to be maintained after long-term use, workers need to climb to high places to perform maintenance work, which not only causes a heavy workload for the workers and is inconvenient to perform maintenance work, but also has relatively low safety and practicality. Therefore, in order to solve the above problems, the present application proposes an outdoor pole-mounted circuit breaker. Utility Model Content

[0004] The purpose of the present application is to provide an outdoor pole-mounted circuit breaker to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an outdoor pole-mounted circuit breaker, comprising a mounting base and a circuit breaker body, a hollow support column is fixedly mounted on the top of the mounting base, a strip-shaped slide groove is provided on the side of the hollow support column, a mounting plate is slidably mounted in the strip-shaped slide groove, the circuit breaker body is fixedly mounted on the top of the mounting plate, a control shaft is rotatably mounted on the inner wall of the side of the hollow support column, a rope winding turntable is fixedly sleeved on the control shaft, a steel wire rope is wound and mounted on the rope winding turntable, two ear plates are fixedly mounted on the top of the hollow support column, and the sides of the two ear plates close to each other rotate together A fixed pulley is dynamically installed, and the end of the wire rope passes around the fixed pulley and is fixedly installed on the top of the mounting plate, one end of the control shaft extends to the outside of the hollow support column and is fixedly installed with an L-shaped hand crank, a connecting round block is fixedly sleeved on the control shaft, and a plurality of fixed plug holes are evenly provided on the circumferential side of the connecting round block, an L-shaped fixing plate is fixedly installed on the side of the hollow support column, a vertical sliding hole is provided at the bottom of the L-shaped fixing plate, a fixed plug rod is slidably installed in the vertical sliding hole, the bottom end of the fixed plug rod extends into one of the fixed plug holes, and a handle block is fixedly installed on the top of the fixed plug rod.

[0006] Preferably, vertical guide rods are fixedly mounted on the top inner wall and the bottom inner wall of the hollow support column, and the mounting plate is slidably sleeved on the vertical guide rods.

[0007] Preferably, a horizontal sliding hole is provided on the side of the handle block, a horizontal plug rod is slidably installed in the horizontal sliding hole, a first plug hole and a second plug hole are provided on the side of the L-shaped fixing plate, the second plug hole is located directly above the first plug hole, one end of the horizontal plug rod passes through the first plug hole, and a control pull block is fixedly installed on the other end of the horizontal plug rod, and an elastic reset element is installed on the control pull block.

[0008] Preferably, the elastic reset element comprises a reset tension spring sleeved on the horizontal insertion rod, and two ends of the reset tension spring are respectively fixedly mounted on the sides of the handle block and the control pull block.

[0009] Preferably, a reciprocating screw is installed on the inner walls of the two sides of the hollow support column that are far away from each other and rotate together, a reciprocating block is threadedly sleeved on the reciprocating screw, a guide ring is fixedly installed on the side of the reciprocating block, the wire rope is located in the guide ring, and a synchronous transmission unit is connected to the control shaft for making the reciprocating screw rotate synchronously.

[0010] Preferably, the synchronous transmission unit comprises two transmission sprockets which are respectively fixedly sleeved on the control shaft and the reciprocating screw rod, and a transmission chain is commonly mounted on the two transmission sprockets.

[0011] Preferably, horizontal guide rods are fixedly mounted on inner walls of two sides of the hollow support column that are away from each other, and the reciprocating block is slidably sleeved on the horizontal guide rods.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. The utility model has a reasonable structure. Through the coordinated arrangement of the L-shaped fixing plate, the fixing plug rod, the fixing plug hole and the handle block, the connecting round block can be fixed or loosened. When the connecting round block is in the loosened state, the L-shaped hand crank can be rotated. The rotation of the L-shaped hand crank will drive the mounting plate to move up and down through the control shaft, the rope winding turntable, the vertical guide rod, the fixed pulley and the wire rope, thereby achieving the purpose of lifting and lowering the circuit breaker body. It is no longer necessary for the staff to climb to a high place for maintenance work. It has good safety, can effectively reduce the workload of the staff, facilitates maintenance work, is simple and convenient to operate, and has good practicality.

[0014] 2. In the utility model, the horizontal plug rod, the control pull block, the first plug hole, the second plug hole and the reset spring are arranged in coordination. When the control horizontal plug rod is inserted into the first plug hole, the connecting round block and the control shaft can be kept in a fixed state. When the control horizontal plug rod is inserted into the second plug hole, the connecting round block and the control shaft can be kept in a loose state. The staff no longer needs to pull the handle block all the time, which is more convenient to use.

[0015] 3. In the utility model, when the control shaft rotates, the reciprocating screw rod will be driven to rotate synchronously through the transmission sprocket and the transmission chain. With the cooperation of the horizontal guide rod, the rotation of the reciprocating screw rod will drive the guide ring to move back and forth horizontally through the reciprocating block, thereby guiding the wire rope to be evenly wound on the rope winding turntable, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of an outdoor pole-mounted circuit breaker according to an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of a partial cross-section structure of a hollow support column in an embodiment of the present application;

[0019] Figure 3 This is an enlarged three-dimensional structural diagram of the coordination between the control shaft and the guide ring in the embodiment of the present application;

[0020] Figure 4 It is a schematic diagram of the partially enlarged structure of the connection between the control shaft and the handle block in the embodiment of the present application.

[0021] In the figure: 1. Mounting base; 2. Circuit breaker body; 3. Hollow support column; 4. Control shaft; 5. Rope winding turntable; 6. Wire rope; 7. Vertical guide rod; 8. Fixed pulley; 9. Mounting plate; 10. L-shaped hand crank; 11. Connecting round block; 12. L-shaped fixing plate; 13. Fixed plug rod; 14. Handle block; 15. Horizontal plug rod; 16. Control pull block; 17. Reset tension spring; 18. Reciprocating screw rod; 19. Reciprocating block; 20. Guide ring; 21. Transmission sprocket; 22. Transmission chain; 23. Horizontal guide rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example: Reference Figure 1-Figure 4The outdoor pole-mounted circuit breaker shown in the figure comprises a mounting base 1 and a circuit breaker body 2, a hollow support column 3 is fixedly mounted on the top of the mounting base 1, a strip-shaped slide groove is provided on the side of the hollow support column 3, a mounting plate 9 is slidably mounted in the strip-shaped slide groove, the circuit breaker body 2 is fixedly mounted on the top of the mounting plate 9, a vertical guide rod 7 is fixedly mounted on the top inner wall and the bottom inner wall of the hollow support column 3, the mounting plate 9 is slidably sleeved on the vertical guide rod 7, a control shaft 4 is rotatably mounted on the side inner wall of the hollow support column 3, a rope winding turntable 5 is fixedly sleeved on the control shaft 4, a steel wire rope 6 is wound and mounted on the rope winding turntable 5, two ear plates are fixedly mounted on the top of the hollow support column 3, and the two ear plates are The sides of the plates that are close to each other are installed with fixed pulleys 8 for common rotation, the end of the wire rope 6 passes around the fixed pulley 8 and is fixedly installed on the top of the mounting plate 9, one end of the control shaft 4 extends to the outside of the hollow support column 3 and is fixedly installed with an L-shaped hand crank 10, a connecting round block 11 is fixedly sleeved on the control shaft 4, and a plurality of fixed sockets are evenly provided on the circumferential side of the connecting round block 11, an L-shaped fixing plate 12 is fixedly installed on the side of the hollow support column 3, a vertical sliding hole is provided at the bottom of the L-shaped fixing plate 12, a fixed plug rod 13 is slidably installed in the vertical sliding hole, the bottom end of the fixed plug rod 13 extends to one of the fixed sockets, and a handle block 14 is fixedly installed on the top of the fixed plug rod 13.

[0024] By means of the above structure, when the handle block 14 is moved up and down, the fixed plug rod 13 will be driven to move in or out of the fixed plug hole, so that the connecting round block 11 can be fixed or loosened. When the connecting round block 11 is in a loosened state, the L-shaped hand crank 10 can be rotated. The rotation of the L-shaped hand crank 10 will drive the rope winding turntable 5 to rotate together through the control shaft 4. Under the cooperation of the vertical guide rod 7 and the fixed pulley 8, the rotation of the rope winding turntable 5 will drive the mounting plate 9 to move up and down through the wire rope 6, thereby achieving the purpose of lifting and lowering the circuit breaker body 2. There is no need for staff to climb to a high place for maintenance work, which has good safety, can effectively reduce the workload of staff, facilitates maintenance work, is simple and convenient to operate, and has good practicality.

[0025] As a preferred implementation scheme of this embodiment, a horizontal sliding hole is opened on the side of the handle block 14, and a horizontal plug rod 15 is slidably installed in the horizontal sliding hole. A first plug hole and a second plug hole are opened on the side of the L-shaped fixing plate 12, and the second plug hole is located directly above the first plug hole. One end of the horizontal plug rod 15 passes through the first plug hole, and a control pull block 16 is fixedly installed on the other end of the horizontal plug rod 15, and an elastic reset element is installed on the control pull block 16. The advantage of such a configuration is that when the handle block 14 is moved up and down, the horizontal plug rod 15 and the control pull block 16 will be driven to move up and down together. When the handle block 14 is moved downward so that the fixed plug rod 13 moves into the fixed socket, the control pull block 16 can be pushed to drive the horizontal plug rod 15 to be inserted into the first socket to fix the handle block 14. At this time, the connecting round block 11 and the control shaft 4 will remain in a fixed state. When the handle block 14 is moved upward so that the fixed plug rod 13 moves out of the fixed socket, the control pull block 16 can be pushed to drive the horizontal plug rod 15 to be inserted into the second socket to fix the handle block 14. At this time, the connecting round block 11 and the control shaft 4 will remain in a loosened state. The staff no longer needs to pull the handle block 14 all the time, which is more convenient to use.

[0026] In this embodiment, the elastic reset element includes a reset spring 17 sleeved on the horizontal plug rod 15, and the two ends of the reset spring 17 are respectively fixedly mounted on the sides of the handle block 14 and the control pull block 16. The advantage of this arrangement is that when the control pull block 16 is released, the elastic force of the reset spring 17 will pull the control pull block 16 to automatically reset, and then the horizontal plug rod 15 can be automatically inserted into the first plug hole or the second plug hole, so that the handle block 14 is always fixed, stable and reliable.

[0027] As a preferred implementation of this embodiment, a reciprocating screw 18 is installed on the inner walls of the two sides of the hollow support column 3 that are away from each other, and a reciprocating block 19 is threadedly sleeved on the reciprocating screw 18. A guide ring 20 is fixedly installed on the side of the reciprocating block 19. The wire rope 6 is located in the guide ring 20, and a synchronous transmission unit for synchronously rotating the reciprocating screw 18 is connected to the control shaft 4. The advantage of this arrangement is that when the control shaft 4 rotates, the reciprocating screw 18 will be driven to rotate synchronously through the synchronous transmission unit, and the rotation of the reciprocating screw 18 will drive the reciprocating block 19 to move back and forth horizontally, and then drive the guide ring 20 to move back and forth horizontally, and the guide wire rope 6 can be evenly wound on the rope winding turntable 5, which is more practical.

[0028] In this embodiment, the synchronous transmission unit includes two transmission sprockets 21 respectively fixedly sleeved on the control shaft 4 and the reciprocating screw rod 18, and the two transmission sprockets 21 are jointly adapted and installed with a transmission chain 22. The advantage of this arrangement is that when the control shaft 4 rotates, it will drive one of the transmission sprockets 21 to rotate, and under the action of the transmission chain 22, it will drive the other transmission sprocket 21 to rotate together, and then drive the reciprocating screw rod 18 to rotate synchronously, playing a transmission role.

[0029] In this embodiment, a horizontal guide rod 23 is fixedly mounted on the inner walls of the two sides of the hollow support column 3 that are away from each other, and the reciprocating block 19 is slidably sleeved on the horizontal guide rod 23. The advantage of this arrangement is that the reciprocating block 19 can only move back and forth horizontally, and will not rotate with the reciprocating screw rod 18, which plays a role of limiting guidance and has good stability when in use.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An outdoor pole-mounted circuit breaker, comprising a mounting base (1) and a circuit breaker body (2), characterized in that: A hollow support column (3) is fixedly mounted on the top of the mounting base (1), a strip-shaped slide groove is provided on the side of the hollow support column (3), a mounting plate (9) is slidably mounted in the strip-shaped slide groove, the circuit breaker body (2) is fixedly mounted on the top of the mounting plate (9), a control shaft (4) is rotatably mounted on the inner wall of the side of the hollow support column (3), a rope winding turntable (5) is fixedly sleeved on the control shaft (4), a steel wire rope (6) is wound and mounted on the rope winding turntable (5), two ear plates are fixedly mounted on the top of the hollow support column (3), a fixed pulley (8) is rotatably mounted on the sides of the two ear plates close to each other, and the end of the steel wire rope (6) passes around the fixed pulley (8) The control shaft (4) is fixedly mounted on the top of the mounting plate (9); one end of the control shaft (4) extends to the outside of the hollow support column (3) and is fixedly mounted with an L-shaped hand crank (10); a connecting round block (11) is fixedly sleeved on the control shaft (4); a plurality of fixed insertion holes are evenly arranged on the circumferential side of the connecting round block (11); an L-shaped fixing plate (12) is fixedly mounted on the side of the hollow support column (3); a vertical sliding hole is arranged at the bottom of the L-shaped fixing plate (12); a fixing rod (13) is slidably mounted in the vertical sliding hole; the bottom end of the fixing rod (13) extends into one of the fixing insertion holes; a handle block (14) is fixedly mounted on the top of the fixing rod (13).

2. An outdoor pole mounted circuit breaker according to claim 1, characterized in that: A vertical guide rod (7) is fixedly mounted on the top inner wall and the bottom inner wall of the hollow support column (3), and the mounting plate (9) is slidably sleeved on the vertical guide rod (7).

3. An outdoor pole mounted circuit breaker according to claim 1, characterized in that: A horizontal sliding hole is provided on the side of the handle block (14), and a horizontal plug rod (15) is slidably installed in the horizontal sliding hole. A first plug hole and a second plug hole are provided on the side of the L-shaped fixing plate (12), and the second plug hole is located directly above the first plug hole. One end of the horizontal plug rod (15) passes through the first plug hole, and a control pull block (16) is fixedly installed on the other end of the horizontal plug rod (15), and an elastic reset element is installed on the control pull block (16).

4. An outdoor pole mounted circuit breaker according to claim 3, characterized in that: The elastic reset element comprises a reset tension spring (17) sleeved on the horizontal insertion rod (15), and two ends of the reset tension spring (17) are respectively fixedly mounted on the sides of the handle block (14) and the control pull block (16).

5. The outdoor pole mounted circuit breaker according to claim 1, characterized in that: A reciprocating screw (18) is rotatably mounted on the inner walls of the two sides of the hollow support column (3) which are away from each other. A reciprocating block (19) is threadedly sleeved on the reciprocating screw (18). A guide ring (20) is fixedly mounted on the side of the reciprocating block (19). The steel wire rope (6) is located in the guide ring (20). A synchronous transmission unit for making the reciprocating screw (18) rotate synchronously is connected to the control shaft (4).

6. An outdoor pole mounted circuit breaker according to claim 5, characterized in that: The synchronous transmission unit comprises two transmission sprockets (21) which are respectively fixedly sleeved on the control shaft (4) and the reciprocating screw rod (18), and a transmission chain (22) is commonly mounted on the two transmission sprockets (21).

7. An outdoor pole mounted circuit breaker according to claim 5, characterized in that: A horizontal guide rod (23) is fixedly mounted on the inner walls of the two sides of the hollow support column (3) which are away from each other, and the reciprocating block (19) is slidably sleeved on the horizontal guide rod (23).

Images