Primary and secondary fusion complete column-mounted circuit breaker convenient to install

Abstract

The invention discloses a primary and secondary fusion complete column-mounted circuit breaker convenient to install, and belongs to the technical field of circuit breakers, the primary and secondary fusion complete column-mounted circuit breaker comprises a circuit breaker body and a base frame, a bottom plate is arranged below the circuit breaker body, supporting rods are arranged at the corners of the top surface of the bottom plate, and the top ends of the supporting rods are fixed to the top surface of the circuit breaker body; inserting holes are formed in the corners of the bottom face of the bottom plate, connecting columns are fixed to the corners of the top face of the base frame, the connecting columns are inserted into the inserting holes, and fixing assemblies used for fixing the connecting columns are arranged in the inserting holes. The circuit breaker has the effect of improving the installation efficiency of the circuit breaker body.

Description

Technical Field

[0001] The invention relates to the technical field of circuit breakers, and in particular to a primary-secondary integrated pole-mounted circuit breaker that is easy to install. Background Art

[0002] The primary and secondary integrated pole-mounted circuit breaker equipment, the primary is the main circuit, the secondary is the primary control, the primary circuit is only composed of electrical equipment directly involved in the production, transmission, conversion, and use of electric energy, and the secondary circuit refers to the circuit formed by connecting the equipment that protects, measures, controls, and meters the primary circuit equipment according to a certain logical relationship, and is widely used in the segmentation and communication functions of the 10kv distribution network trunk line. The bottom of the traditional primary and secondary integrated pole-mounted circuit breaker will be connected to a support plate, and then fixed to the mounting plate on the pole by bolts.

[0003] In the related art, a Chinese utility model patent with announcement number CN220358037U discloses a primary-secondary integrated pole-mounted circuit breaker that is easy to install, including a circuit breaker body and a base frame, outer edges are arranged on opposite sides of the circuit breaker body, fixed convex edges are arranged on opposite sides of one side of the base frame, and a quick-installation mechanism is arranged between the outer edge and the base frame; the quick-installation mechanism includes a first mounting groove provided on the side wall of the base frame and a second mounting groove provided on the side wall of the outer edge, a rotating block is rotatably installed on the second mounting groove, the top of the rotating block extends into the interior of the first mounting groove and is screwed with a locking bolt for fixing the outer edge.

[0004] In the above-mentioned related technology, a quick-installation mechanism is provided between the base frame and the outer edge of the circuit breaker body. When the circuit breaker body needs to be installed, the circuit breaker body is placed on the base frame, and then the staff needs to rotate the rotating blocks into the first installation grooves one by one, and then tighten the locking bolts, which makes the fixing between the circuit breaker body and the base frame more complicated, thereby reducing the installation efficiency of the circuit breaker body. Summary of the invention

[0005] In order to improve the problem that the fixation between the circuit breaker body and the base frame is complicated, thereby reducing the installation efficiency of the circuit breaker body, the present application provides a primary and secondary integrated pole-mounted circuit breaker that is easy to install.

[0006] The present application provides a primary and secondary integrated pole-mounted circuit breaker that is easy to install and adopts the following technical solution: A primary-secondary integrated column-mounted circuit breaker that is easy to install comprises a circuit breaker body and a base frame, wherein a bottom plate is arranged below the circuit breaker body, support rods are arranged at the corners of the top surface of the bottom plate, the top ends of the support rods are fixed to the top surface of the circuit breaker body, plugging holes are arranged at the corners of the bottom surface of the bottom plate, connecting columns are fixed at the corners of the top surface of the base frame, the connecting columns are inserted into the plugging holes, and a fixing assembly for fixing the connecting columns is arranged in the plugging holes.

[0007] By adopting the above technical solution, when the circuit breaker body needs to be installed, the circuit breaker body is moved to the top of the base frame, the connecting column on the base frame is aligned with the plug-in hole on the bottom surface of the base plate, the circuit breaker body is moved downward, the circuit breaker body is placed on the base frame, the connecting column is inserted into the plug-in hole, and the fixing group in the plug-in hole fixes the connecting column in the plug-in hole, thereby reducing the need for the staff to fix the base frame and the circuit breaker body with the locking bolts after the circuit breaker body is placed on the base frame, thereby improving the installation efficiency of the circuit breaker body.

[0008] Preferably, the inner circumferential surface of the plug-in hole is provided with two sliding grooves, the fixing assembly includes a fixing block slidably arranged in the sliding groove, a spring 1 is fixed to the side of the fixing block away from the connecting column, one end of the spring 1 away from the fixing block is fixed to the inner side surface of the sliding groove away from the connecting column, an annular groove is provided on the outer circumferential surface of the connecting column, and one end of the fixing block away from the spring 1 is inserted into the annular groove.

[0009] By adopting the above technical solution, when the circuit breaker body is placed on the base frame, the connecting column is inserted into the plug-in slot, and the fixing block moves toward the connecting column under the elastic force of spring 1, so that the end of the fixing block away from spring 1 is inserted into the annular groove, thereby fixing the connecting column in the plug-in slot.

[0010] Preferably, the top end of the connecting column is a pointed end.

[0011] By adopting the above technical solution, a tip is provided at the top of the connecting column. When the circuit breaker body is placed on the base frame, the connecting column is inserted into the insertion groove, and the tip of the connecting column is conveniently inserted between the two fixing blocks, so that the arc surface of the tip pushes the two fixing blocks to move in a direction away from each other. When the fixing block is separated from the arc surface of the tip, the side of the fixing block away from the spring 1 abuts against the outer peripheral surface of the connecting column. When the bottom surface of the bottom plate fits with the top surface of the base frame, the fixing block is aligned with the annular groove, so that the fixing block is inserted into the annular groove under the elastic force of the spring 1.

[0012] Preferably, a through hole 1 is provided on the inner side surface of the two sliding grooves away from the connecting column, a through hole 2 is provided on the inner circumferential surface of the through hole 1, and the through hole 2 passes through the top surface of the bottom plate. A pull rope is fixed to the side of the fixed block away from the connecting column, and one end of the pull rope away from the fixed block passes through the through hole 1 and the through hole 2 in sequence. A pull block is arranged between the two pull ropes, and the ends of the two pull ropes close to each other are respectively fixed to the two end surfaces of the pull block.

[0013] By adopting the above technical solution, when the circuit breaker body needs to be removed from the base frame for maintenance, the pull block is pulled, and the pull block pulls the pull rope, so that the pull rope pulls the fixed block, and the fixed block is pulled into the sliding groove, so that the fixed block is separated from the annular groove, thereby facilitating the removal of the circuit breaker body from the base frame for maintenance.

[0014] Preferably, grooves are provided at the corners of the top surface of the bottom plate, the groove is located on one side of the pulling block, a limit block for fixing the pulling block is vertically slidably arranged in the groove, a second spring is fixed to the bottom surface of the limit block, and the bottom end of the second spring is fixed to the inner bottom surface of the groove.

[0015] By adopting the above technical solution, when the circuit breaker body needs to be removed from the base frame, the pull block is pulled in the direction close to the limit block, so that the pull block pulls the pull rope. When the pull rope pulls the fixed block into the sliding groove, the limit block is pressed into the groove. When the pull block moves to one side of the limit block, the limit block moves upward under the elastic force of the second spring. When it is released and pulled open, the side surface of the pull block abuts against the outer peripheral surface of the limit block, so that the limit block limits the movement of the pull block, thereby making it convenient for the staff to free their hands and remove the circuit breaker body from the base frame.

[0016] Preferably, sleeves are fixed on both sides of the top surface of the base plate, a push rod is inserted in the sleeve, the top surface of the push rod is fixed to the bottom surface of the circuit breaker body, a drive tube is sleeved on the top surface of the sleeve, the drive tube is rotatably connected to the sleeve, a worm gear is fixed on the top surface of the drive tube, the push rod passes through the worm gear, the push rod is threadedly connected to the worm gear, and a driving member for driving the worm gear to rotate is provided on the base plate.

[0017] By adopting the above technical solution, the driving member drives the two worm gears to rotate at the same time, and the worm gear drives the driving tube to rotate on the sleeve. When the worm gear rotates, the worm gear drives the push rod to move upward, so that the push rod drives the circuit breaker body to move upward, and the height of the circuit breaker body is adjusted, thereby facilitating the wiring of the circuit breaker body.

[0018] Preferably, mounting plates are fixed on both sides of the top surface of the base plate, a rotating shaft is rotatably installed between the two mounting plates, two sections of helical teeth are provided on the rotating shaft, the two sections of helical teeth are respectively meshed with the two worm gears, and a rotating handle is provided at one end of the rotating shaft.

[0019] By adopting the above technical solution, when it is necessary to adjust the height of the circuit breaker body and connect the circuit breaker body, the handle is rotated, the handle drives the rotating shaft to rotate, and the rotating shaft drives the two sections of helical teeth on the rotating shaft to rotate, so that the helical teeth drive the worm gear to rotate, and the worm gear drives the push rod to move vertically, and then the push rod drives the circuit breaker body to move vertically, so as to adjust the height of the circuit breaker body.

[0020] Preferably, the support rod includes a connecting rod 1 fixed to the bottom surface of the circuit breaker body and a connecting rod 2 fixed to the top surface of the base plate, the top surface of the connecting rod 2 is provided with a movable groove, the bottom end of the connecting rod 1 is inserted into the movable groove, and the connecting rod 1 is vertically slidably connected to the connecting rod 2 through the movable groove.

[0021] By adopting the above technical solution, when the circuit breaker body moves vertically, the circuit breaker body also drives the connecting rod 1 to move vertically in the moving groove, so that the circuit breaker body is more stable when moving vertically.

[0022] Preferably, L-shaped plates are fixed at the corners of the top surface of the base frame, and the two side surfaces at the corners of the bottom plate are respectively fitted with the inner side surfaces of the L-shaped plates.

[0023] By adopting the above technical solution, by fixing the L-shaped plate at the corners of the base frame, when the circuit breaker body is installed on the base frame, the two side surfaces of the bottom plate corner fit with the inner side surfaces of the L-shaped plate, so that it is convenient for the connecting column to align with the plug-in slot, and when the circuit breaker body is installed on the base frame, the connecting column can be quickly plugged into the plug-in slot.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the circuit breaker body needs to be installed, the circuit breaker body is moved to the top of the base frame, the connecting column on the base frame is aligned with the plug-in hole on the bottom surface of the base plate, the circuit breaker body is moved downward, the circuit breaker body is placed on the base frame, the connecting column is inserted into the plug-in hole, the tip of the connecting column is conveniently inserted between the two fixing blocks, so that the arc surface of the tip pushes the two fixing blocks to move in a direction away from each other, when the fixing block is separated from the arc surface of the tip, the side of the fixing block away from the spring 1 abuts against the outer peripheral surface of the connecting column, when the bottom surface of the base plate fits with the top surface of the base frame, the fixing block is aligned with the annular groove, so that the fixing block is inserted into the annular groove under the elastic force of the spring 1, thereby reducing the need for the staff to fix the base frame and the circuit breaker body with the locking bolts after the circuit breaker body is placed on the base frame, thereby improving the installation efficiency of the circuit breaker body; 2. When the circuit breaker body needs to be removed from the base frame, pull the pull block toward the direction close to the limit block, so that the pull block pulls the pull rope. When the pull rope pulls the fixed block into the sliding groove, the limit block is pressed into the groove. When the pull block moves to one side of the limit block, the limit block moves upward under the elastic force of the second spring. Release and pull it apart, and the side surface of the pull block abuts against the outer peripheral surface of the limit block, so that the limit block restricts the movement of the pull block, thereby freeing the hands of the staff to remove the circuit breaker body from the base frame; 3. When the height of the circuit breaker body needs to be adjusted and the circuit breaker body needs to be wired, the handle is turned, and the handle drives the shaft to rotate, and the shaft drives the two sections of spiral teeth on the shaft to rotate, so that the spiral teeth drive the worm gear to rotate, and the worm gear drives the push rod to move vertically, and then the push rod drives the circuit breaker body to move vertically to adjust the height of the circuit breaker body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a primary and secondary integrated pole-mounted circuit breaker that is easy to install in an embodiment of the present application.

[0026] Figure 2 It is a structural schematic diagram of the base frame in the embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the structure of the base plate in the embodiment of the present application.

[0028] Figure 4 It is a cross-sectional view of the bottom plate in the embodiment of the present application.

[0029] Figure 5 yes Figure 4 A magnified schematic diagram of center A.

[0030] Figure 6 It is a schematic diagram of the structure of the limit block in the embodiment of the present application.

[0031] Figure 7 It is a schematic diagram of the structure of the worm gear in the embodiment of the present application.

[0032] Figure numerals: 1. circuit breaker body; 11. support rod; 12. bottom plate; 13. connecting rod 1; 14. connecting rod 2; 15. movable groove; 2. base frame; 21. L-shaped plate; 22. connecting column; 23. annular groove; 3. plug-in hole; 31. sliding groove; 32. fixing block; 33. spring 1; 34. through hole 1; 35. through hole 2; 36. pull rope; 37. pull block; 4. groove; 41. limit block; 42. inclined surface; 43. spring 2; 5. sleeve; 51. drive tube; 52. worm gear; 53. push rod; 54. mounting plate; 55. rotating shaft; 56. spiral teeth; 57. rotating handle. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-7 This application is described in further detail.

[0034] The embodiment of the present application discloses a primary-secondary integrated pole-mounted circuit breaker that is easy to install.

[0035] Reference Figure 1 A primary and secondary integrated pole mounted circuit breaker that is easy to install includes a circuit breaker body 1 and a base frame 2 for installing the circuit breaker body 1. A bottom plate 12 is arranged below the circuit breaker body 1, and the top corners of the bottom plate 12 are fixed to support rods 11, and the top end of the support rods 11 is fixed to the bottom surface of the circuit breaker body 1.

[0036] Reference Figure 2 and Figure 3 L-shaped plates 21 are fixed at the corners of the top surface of the base frame 2. Four L-shaped plates 21 form a square frame. The bottom plate 12 is installed on the base frame 2. The two side surfaces of the four corners of the bottom plate 12 are respectively in contact with the inner side surfaces of the four L-shaped plates 21. Plug holes 3 are opened at the corners of the bottom surface of the bottom plate 12. Four connecting columns 22 are fixed on the top surface of the base frame 2. The four connecting columns 22 correspond to the four plug holes 3. The top of the connecting column 22 is a pointed tip. The four connecting columns 22 are respectively inserted into the four plug holes 3.

[0037] Reference Figure 1 , Figure 4 and Figure 5 The inner circumference of the plug hole 3 is provided with two sliding grooves 31, and the two sliding grooves 31 are arranged at equal intervals along the inner circumference of the plug hole 3. A fixing block 32 is slidably arranged in the plug hole 3, and springs 1 33 are fixed on both sides of the side of the fixing block 32 away from the connecting column 22, and one end of the spring 1 33 away from the fixing block 32 is fixed to the inner side of the sliding groove 31 away from the connecting column 22. The outer circumference of the connecting column 22 is provided with an annular groove 23, and one end of the fixing block 32 away from the spring 1 33 is inserted into the annular groove 23.

[0038] When the circuit breaker body 1 needs to be installed on the base frame 2, the circuit breaker body 1 is moved to the top of the base frame 2, and the circuit breaker body 1 is moved downward so that the four corners of the bottom plate 12 are respectively aligned with the inner sides of the four L-shaped plates 21, and the circuit breaker body 1 is continued to be moved downward. When the bottom surface of the bottom plate 12 fits with the top surface of the base frame 2, the four connecting columns 22 on the base frame 2 are respectively inserted into the four plug holes 3, and the tip of the connecting column 22 pushes the fixing block 32 to move toward the sliding groove 31. When the fixing block 32 is separated from the tip of the connecting column 22, the sliding groove 31 corresponds to the annular groove 23. The fixing block 32 moves toward the direction close to the connecting column 22 under the elastic force of the spring 1 33, so that the end of the fixing block 32 away from the spring 1 33 is inserted into the annular groove 23, thereby fixing the circuit breaker body 1 on the base frame 2.

[0039] Reference Figure 1 , Figure 5 The inner side surfaces of the two sliding grooves 31 away from the connecting column 22 are provided with through holes 1 34, and the inner peripheral surface of the through holes 1 34 is provided with through holes 2 35, and the through holes 2 35 penetrate the top surface of the bottom plate 12. The sides of the two fixing blocks 32 away from the connecting column 22 are fixed with pull ropes 36, and the ends of the pull ropes 36 away from the connecting column 22 pass through the through holes 1 34 and the through holes 2 35 in sequence. A pull block 37 is arranged between the two pull ropes 36, and the pull block 37 is located above the bottom plate 12, and the ends of the two pull ropes 36 close to each other are fixed to the two end surfaces of the pull block 37 respectively.

[0040] Reference Figure 1 , Figure 5 and Figure 6 The top corners of the bottom plate 12 are provided with grooves 4, which are located on one side of the pull block 37. A limit block 41 is vertically slidably arranged in the groove 4. A spring 2 43 is fixed to the bottom of the limit block 41, and the bottom end of the spring 2 43 is fixed to the inner bottom of the groove 4. The top surface of the limit block 41 is provided with an inclined surface 42, and the distance between the top end of the inclined surface 42 and the pull block 37 is greater than the distance between the bottom end of the inclined surface 42 and the pull block 37.

[0041] When the circuit breaker body 1 needs to be removed from the base frame 2, the pull block 37 is pulled toward the direction close to the limit block 41, so that the bottom surface of the pull block 37 pushes the inclined surface 42, so that the limit block 41 moves downward into the groove 4. When the pull block 37 moves, the pull block 37 also pulls the pull rope 36, so that the pull rope 36 pulls the fixed block 32, and pulls the fixed block 32 into the sliding groove 31, so that the fixed block 32 is separated from the connecting column 22. When the pull block 37 passes over the limit block 41, the limit block 41 moves upward under the elastic force of the spring 2 43, so that the side of the pull block 37 abuts against the side of the limit block 41, thereby reducing the movement of the fixed block 32 toward the connecting column 22 under the elastic force of the spring 1 33, thereby making it easier for the staff to free their hands and remove the circuit breaker body 1 from the base frame 2.

[0042] Reference Figure 1 and Figure 7The support rod 11 includes a connecting rod 13 fixed to the bottom surface of the circuit breaker body 1 and a connecting rod 2 14 fixed to the top surface of the bottom plate 12. A movable groove 15 is provided on the top surface of the connecting rod 2 14. The bottom end of the connecting rod 13 is inserted into the movable groove 15. The connecting rod 13 is vertically slidably connected with the connecting rod 2 14 through the movable groove 15. A sleeve 5 is fixed to both sides of the top surface of the bottom plate 12. A driving pipe 51 is inserted into the top of the sleeve 5. The driving pipe 51 is rotatably connected to the sleeve 5. A worm gear 52 is fixed to the top surface of the driving pipe 51. The central axis of the worm gear 52 is colinear with the central axis of the driving pipe 51. A top rod 53 is penetrated on the top surface of the worm gear 52. The top surface of the top rod 53 is fixed to the bottom surface of the circuit breaker body 1. The bottom end of the top rod 53 is inserted into the sleeve 5. The top rod 53 is threadedly connected to the worm gear 52. Mounting plates 54 are fixed on both sides of the top surface of the bottom plate 12, and a rotating shaft 55 is rotatably mounted between the two mounting plates 54. Two sections of helical teeth 56 are provided on the outer circumference of the rotating shaft 55, and the two sections of helical teeth 56 are respectively meshed with the two worm gears 52. One end of the rotating shaft 55 passes through the side surface of one of the mounting plates 54, and a rotating handle 57 is fixed to one end of the rotating shaft 55.

[0043] The handle 57 is rotated, and the handle 57 drives the shaft 55 to rotate. The shaft 55 drives the two sections of spiral teeth 56 to rotate. The two sections of spiral teeth 56 respectively drive the two worm gears 52 to rotate, so that the worm gears 52 drive the push rod 53 to move vertically. The push rod 53 pushes the circuit breaker body 1 to move vertically, thereby adjusting the height of the circuit breaker body 1, which is convenient for wiring the circuit breaker body 1.

[0044] The implementation principle of the primary and secondary integrated pole-mounted circuit breaker of the embodiment of the present application which is easy to install is as follows: when the circuit breaker body 1 needs to be installed, the circuit breaker body 1 is moved to the top of the base frame 2, and the circuit breaker body 1 is moved downward, so that the bottom plate 12 is moved to the square frame surrounded by four L-shaped plates 21. At this time, the connecting column 22 on the base frame 2 is aligned with the plug hole 3 on the bottom surface of the bottom plate 12, and the circuit breaker body 1 is further moved downward so that the connecting column 22 is inserted into the plug hole 3, and the tip of the top of the connecting column 22 is arc-shaped. The two fixing blocks 32 are pushed toward the sliding groove 31 by the surface. When the bottom surface of the bottom plate 12 fits with the top surface of the base frame 2, the fixing blocks 32 are aligned with the annular groove 23, so that the fixing blocks 32 are inserted into the annular groove 23 under the elastic force of the spring 1 33, and the circuit breaker body 1 is fixed on the base frame 2, thereby reducing the need for the staff to fix the base frame 2 and the circuit breaker body 1 with the locking bolts after the circuit breaker body 1 is placed on the base frame 2, thereby improving the installation efficiency of the circuit breaker body 1.

[0045] When the height of the circuit breaker body 1 needs to be adjusted and the circuit breaker body 1 needs to be wired, the handle 57 is rotated, the handle 57 drives the shaft 55 to rotate, and the shaft 55 drives the two-stage helical teeth 56 to rotate, so that the helical teeth 56 at both ends respectively drive the two worm gears 52 to rotate, and the worm gear 52 drives the push rod 53 to move vertically, so that the push rod 53 drives the circuit breaker body 1 to move vertically, thereby facilitating the adjustment of the height of the circuit breaker body 1 and wiring the circuit breaker body 1.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker that is easy to install, characterized by: The invention comprises a circuit breaker body (1) and a base frame (2), wherein a bottom plate (12) is arranged below the circuit breaker body (1), support rods (11) are arranged at the corners of the top surface of the bottom plate (12), the top ends of the support rods (11) are fixed to the top surface of the circuit breaker body (1), plug-in holes (3) are arranged at the corners of the bottom surface of the bottom plate (12), and connecting columns (22) are fixed at the corners of the top surface of the base frame (2), the connecting columns (22) are inserted into the plug-in holes (3), and a fixing component for fixing the connecting columns (22) is arranged in the plug-in holes (3).

2. The primary and secondary integrated pole mounted circuit breaker easy to install according to claim 1 is characterized in that: The inner circumference of the plug hole (3) is provided with two sliding grooves (31), the fixing assembly comprises a fixing block (32) slidably arranged in the sliding groove (31), a spring (33) is fixed on the side of the fixing block (32) away from the connecting column (22), one end of the spring (33) away from the fixing block (32) is fixed to the inner side of the sliding groove (31) away from the connecting column (22), an annular groove (23) is provided on the outer circumference of the connecting column (22), and one end of the fixing block (32) away from the spring (33) is inserted into the annular groove (23).

3. The primary and secondary integrated pole mounted circuit breaker easy to install according to claim 2 is characterized in that: The top end of the connecting column (22) is a pointed end.

4. The primary and secondary integrated pole mounted circuit breaker easy to install according to claim 2 is characterized in that: A through hole one (34) is provided on the inner side surface of the two sliding grooves (31) away from the connecting column (22), and a through hole two (35) is provided on the inner peripheral surface of the through hole one (34). The through hole two (35) passes through the top surface of the bottom plate (12). A pull rope (36) is fixed on the side of the fixed block (32) away from the connecting column (22), and one end of the pull rope (36) away from the fixed block (32) passes through the through hole one (34) and the through hole two (35) in sequence. A pull block (37) is provided between the two pull ropes (36), and the ends of the two pull ropes (36) close to each other are respectively fixed to the two end surfaces of the pull block (37).

5. The primary and secondary integrated pole mounted circuit breaker easy to install according to claim 4, characterized in that: The top corners of the bottom plate (12) are provided with grooves (4), the grooves (4) are located on one side of the pull block (37), a limit block (41) for fixing the pull block (37) is vertically slidably arranged in the groove (4), a spring 2 (43) is fixed to the bottom surface of the limit block (41), and the bottom end of the spring 2 (43) is fixed to the inner bottom surface of the groove (4).

6. The primary and secondary integrated pole mounted circuit breaker easy to install according to claim 1, characterized in that: Sleeves (5) are fixed on both sides of the top surface of the base plate (12), a push rod (53) is inserted into the sleeve (5), the top surface of the push rod (53) is fixed to the bottom surface of the circuit breaker body (1), a driving tube (51) is sleeved on the top surface of the sleeve (5), the driving tube (51) is rotatably connected to the sleeve (5), a worm gear (52) is fixed on the top surface of the driving tube (51), the push rod (53) passes through the worm gear (52), the push rod (53) is threadedly connected to the worm gear (52), and a driving member for driving the worm gear (52) to rotate is provided on the base plate (12).

7. The primary and secondary integrated pole mounted circuit breaker easy to install according to claim 6, characterized in that: Mounting plates (54) are fixed on both sides of the top surface of the bottom plate (12); a rotating shaft (55) is rotatably mounted between the two mounting plates (54); two sections of helical teeth (56) are provided on the rotating shaft (55); the two sections of helical teeth (56) are respectively meshed with the two worm wheels (52); and a rotating handle (57) is provided at one end of the rotating shaft (55).

8. The primary and secondary integrated pole mounted circuit breaker easy to install according to claim 6, characterized in that: The support rod (11) comprises a connecting rod 1 (13) fixed to the bottom surface of the circuit breaker body (1) and a connecting rod 2 (14) fixed to the top surface of the base plate (12); a movable groove (15) is provided on the top surface of the connecting rod 2 (14); the bottom end of the connecting rod 1 (13) is inserted into the movable groove (15); and the connecting rod 1 (13) is slidably connected to the connecting rod 2 (14) in the vertical direction through the movable groove (15).

9. The primary and secondary integrated pole mounted circuit breaker easy to install according to claim 1, characterized in that: L-shaped plates (21) are fixed at the corners of the top surface of the base frame (2), and the two side surfaces at the corners of the bottom plate (12) are respectively fitted with the inner side surfaces of the L-shaped plates (21).

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