A pole-mounted circuit breaker assembly auxiliary device

Abstract

This application discloses an auxiliary device for assembling pole-mounted circuit breakers, comprising a support frame, a fixing base, a fixing component, a rotating component, and a limiting component. The upper end of the support frame has an installation space for accommodating and rotating the pole-mounted circuit breaker. The fixing base is respectively disposed on both sides of the installation space. The fixing base includes a first clamping plate disposed on the support frame and a second clamping plate detachably disposed on the first clamping plate. The rotating component can drive the first clamping plate to rotate, and the limiting component can restrict the rotation of the first clamping plate. The pole-mounted circuit breaker can be fixedly clamped between the first clamping plate and the second clamping plate by the fixing component. This application has the effect of facilitating the assembly of pole-mounted circuit breakers and improving assembly efficiency.

Description

Technical Field

[0001] This application relates to the technical field of pole-mounted circuit breaker manufacturing, and in particular to... Background Technology

[0002] A pole-mounted circuit breaker is a high-voltage electrical device installed on a utility pole, belonging to the category of pipe protection devices in outdoor power distribution systems. It automatically cuts off the current when overloads, short circuits, or other faults occur in the circuit, preventing equipment damage and power grid collapse.

[0003] The pole-mounted circuit breaker mainly consists of a base, an arc-extinguishing chamber, and an energy storage mechanism. During installation, the arc-extinguishing chamber and switch are first installed on top of the base. The arc-extinguishing chamber has a spiral columnar structure. After the arc-extinguishing chamber is installed, the base needs to be flipped over to install the internal components.

[0004] Regarding the aforementioned technologies, the circuit breaker flipping process during assembly is quite cumbersome. Furthermore, after flipping, the circuit breaker needs to be aligned and individually fixed in order not to damage the arc-extinguishing chamber above, which is troublesome and results in low installation efficiency. Utility Model Content

[0005] To facilitate the assembly of pole-mounted circuit breakers and improve assembly efficiency, this application provides an auxiliary device for assembling pole-mounted circuit breakers.

[0006] This application provides an auxiliary device for assembling pole-mounted circuit breakers, which adopts the following technical solution:

[0007] An auxiliary device for assembling a pole-mounted circuit breaker includes a support frame, a fixing base, a fixing component, a rotating component, and a limiting component. The upper end of the support frame has an installation space for accommodating and rotating the pole-mounted circuit breaker. The fixing base is respectively disposed on both sides of the installation space. The fixing base includes a first clamping plate disposed on the support frame and a second clamping plate detachably disposed on the first clamping plate. The rotating component can drive the first clamping plate to rotate, and the limiting component can restrict the rotation of the first clamping plate. The pole-mounted circuit breaker can be fixedly clamped between the first clamping plate and the second clamping plate by the fixing component.

[0008] By adopting the above technical solution, the pole-mounted circuit breaker can be accommodated in the installation space of the support frame, allowing it to rotate within it. The first and second clamping plates of the fixing base, together with the fixing components, can firmly clamp and fix the pole-mounted circuit breaker. The rotating component can drive the first clamping plate to rotate, thereby driving the pole-mounted circuit breaker to rotate, avoiding tedious manual flipping operations. The limiting component can restrict the rotation of the first clamping plate, ensuring stable fixation after rotating to the appropriate position, thus improving the installation efficiency of the pole-mounted circuit breaker.

[0009] Optionally, the rotating assembly includes a rotating shaft rotatably mounted on the support frame, and a power component for driving the rotating shaft to rotate. The first clamping plate includes a bottom plate and a side plate connected to each other. The bottom plate is parallel to the first clamping plate, and one end of the rotating shaft is connected to the side plate.

[0010] By adopting the above technical solution, the rotating shaft and power component can make the first clamping plate rotate, thereby realizing the rotation of the pole-mounted circuit breaker. This avoids the cumbersome flipping process of the circuit breaker in the traditional installation method, reduces the damage to the arc-extinguishing chamber caused by flipping and the additional fixing operations, and improves the installation efficiency.

[0011] Optionally, the power component includes a worm gear, a worm, and a control grip. The worm gear is coaxially connected to the rotating shaft, the worm meshes with the worm gear, and the control grip is connected to one end of the worm.

[0012] By adopting the above technical solution and using a worm gear and worm wheel in conjunction with the control handle, the rotating shaft can be driven to rotate easily and effortlessly, thereby driving the first clamping plate to rotate and realizing the flipping of the pole-mounted circuit breaker, improving the convenience and flexibility of the installation process.

[0013] Optionally, the fixing assembly includes a fixing bolt and a fixing nut. Both the base plate and the second clamping plate have openings for the fixing bolt to pass through. When the pole-mounted circuit breaker is placed on the base plate, the fixing bolt can pass through the base plate, the pole-mounted circuit breaker and the second clamping plate in sequence.

[0014] By adopting the above technical solution, using fixing bolts and fixing nuts to pass through the base plate, the pole-mounted circuit breaker, and the second clamping plate, the pole-mounted circuit breaker can be firmly fixed between the first clamping plate and the second clamping plate, avoiding shaking and displacement during installation. At the same time, in conjunction with the support frame, rotating components, and limiting components, it helps to improve the installation efficiency of the pole-mounted circuit breaker.

[0015] Optionally, the limiting component includes a first mounting plate, a limiting screw, and a handle. The first mounting plate is disposed on the support frame and has a threaded hole. The side plate has first limiting holes at both ends, and the first limiting holes are symmetrically opened on both sides of the rotating shaft. The handle is connected to the end of the limiting screw away from the side plate. When the first clamping plate is in a horizontal state, the limiting screw can thread through the threaded hole on the mounting plate and be inserted into the limiting hole.

[0016] By adopting the above technical solution, when the first clamping plate is in a horizontal state, the first clamping plate can be reliably limited by inserting the limiting screw into the first limiting hole, thus preventing the first clamping plate from rotating randomly and improving the stability of the auxiliary device during use.

[0017] Optionally, the limiting component includes a second mounting plate, a positioning post, a limiting post, an elastic element, and a control element. The second mounting plate is disposed on the support frame. The positioning post is fixed to the second mounting plate along a direction perpendicular to the side plate. The end face of the positioning post near the side plate has a receiving groove for the limiting post to slide. The side plate has second limiting holes at both ends, and the second limiting holes are symmetrically opened on both sides of the rotation shaft. The elastic element can drive the end of the limiting post to slide into the second limiting hole, and the control element can control the limiting post to disengage from the second limiting hole.

[0018] By adopting the above technical solution, the limiting post can be automatically inserted into the second limiting hole with the help of the elastic element to limit the first clamping plate, and the limiting post can be easily controlled to disengage from the second limiting hole to release the limit by the control element, which simplifies the fixing and unlocking operation during the flipping process of the pole-mounted circuit breaker and improves the installation efficiency.

[0019] Optionally, the elastic element is a spring, which is disposed between the bottom wall of the receiving groove and the limiting post. The control element includes a control linkage and a control handle. One end of the control linkage is connected to the limiting post, and extends through the positioning post to connect with the control handle. The end face of the positioning post opposite to the side plate has interlocking placement grooves and positioning grooves. When the control handle is engaged in the placement groove, the end of the limiting post disengages from the second limiting hole. When the control handle is engaged in the positioning groove, the end of the limiting post inserts into the second limiting hole. At this time, the spring is in a compressed state.

[0020] By adopting the above technical solution, the elasticity of the spring can be used to drive the end of the limiting post to insert into the second limiting hole to restrict the rotation of the first clamping plate; the movement of the limiting post can be controlled by the control linkage and the control handle. When the control handle is engaged in the positioning groove, the end of the limiting post is disengaged from the second limiting hole, which facilitates the rotation of the first clamping plate; when the control handle is engaged in the positioning groove, the end of the limiting post is inserted into the second limiting hole, which fixes the position of the first clamping plate, facilitates the assembly operation of the pole-mounted circuit breaker, and improves the assembly efficiency.

[0021] Optionally, the support frame includes transverse support rods, longitudinal support rods, vertical support rods, reinforcing connecting rods, and a mounting platform. Two longitudinal support rods are arranged parallel to each other. At least two transverse support rods are arranged between the two longitudinal support rods. Vertical support rods are respectively arranged on the two longitudinal support rods. The reinforcing connecting rods are arranged between the two vertical support rods. The mounting platform is arranged on the vertical support rods. The rotating component is arranged on the mounting platform, and the limiting component is arranged on the vertical support rods.

[0022] By adopting the above technical solution, the support frame uses a combination of transverse support rods, longitudinal support rods, vertical support rods, reinforcing connecting rods, and mounting platforms to form a stable frame structure to support the various components. Two longitudinal support rods are arranged in parallel, and at least two transverse support rods are arranged to enhance the transverse and longitudinal stability of the frame. The vertical support rods are set on the longitudinal support rods and connected by reinforcing connecting rods to further improve the overall strength of the frame. The mounting platform is set on the vertical support rods to provide an installation position for the rotating components.

[0023] Optionally, pulleys are provided at both ends of the two longitudinal support rods.

[0024] By adopting the above technical solutions, the auxiliary device for assembling pole-mounted circuit breakers is made mobile, which facilitates position adjustment and transportation, improves the flexibility and convenience of use, and thus enhances the installation efficiency of pole-mounted circuit breakers.

[0025] Optionally, part frames are provided on the two said transverse support rods.

[0026] By adopting the above technical solution, a parts frame can be set on the horizontal support rod to store the parts required for assembling the pole-mounted circuit breaker, making it easier to retrieve the parts and improving assembly efficiency.

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

[0028] 1. The pole-mounted circuit breaker is fixedly clamped between the first and second clamping plates using a fixing component. The first clamping plate is driven to rotate by a rotating component, thereby driving the pole-mounted circuit breaker to rotate. This eliminates the need for tedious manual flipping of the circuit breaker, simplifying the flipping process.

[0029] 2. The limiting component can restrict the rotation of the first clamping plate, so that the pole-mounted circuit breaker is fixed after being flipped to the appropriate position, thereby improving the stability during installation. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of Example 1;

[0031] Figure 2 This is an exploded structural diagram of a fixed component;

[0032] Figure 3 This is a schematic diagram of the rotating component;

[0033] Figure 4 This is a structural schematic diagram of Example 2;

[0034] Figure 5 This is a cross-sectional structural diagram of the positioning post.

[0035] Explanation of reference numerals in the attached drawings: 1. Support frame; 11. Horizontal support rod; 12. Longitudinal support rod; 13. Vertical support rod; 14. Reinforcing connecting rod; 15. Mounting platform; 16. Pulley; 17. Parts frame; 2. Fixing base; 21. First clamping plate; 211. Base plate; 212. Side plate; 213. First limiting hole; 214. Second limiting hole; 22. Second clamping plate; 3. Fixing assembly; 31. Fixing bolt; 32. Fixing nut; 4. 41. Rotating component; 42. Power component; 421. Worm gear; 422. Worm; 423. Control grip; 5. Limiting component; 51. First mounting plate; 52. Limiting screw; 53. Handle; 54. Second mounting plate; 55. Positioning post; 551. Drop groove; 552. Positioning groove; 56. Elastic component; 57. Control component; 571. Control linkage; 572. Control handle; 58. Limiting post; 6. Installation space. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0037] Example 1:

[0038] This application discloses an auxiliary device for assembling a pole-mounted circuit breaker. (Refer to...) Figure 1 The auxiliary device includes a support frame 1, a fixing base 2, a fixing component 3, a rotating component 4, and a limiting component 5. The support frame 1 serves as the basic support component, with its upper end forming an installation space 6 for accommodating and rotating the pole-mounted circuit breaker. The fixing base 2 is provided on both sides of the installation space 6. The fixing base 2 consists of a first clamping plate 21 mounted on the support frame 1 and a second clamping plate 22 detachably mounted on the first clamping plate 21. The pole-mounted circuit breaker can be fixedly clamped between the first clamping plate 21 and the second clamping plate 22 by the fixing component 3, thereby fixing the pole-mounted circuit breaker to the two fixing bases 2. The rotating component 4 can drive the first clamping plate 21 to rotate, and the limiting component 5 can restrict the rotation of the first clamping plate 21. This allows for convenient flipping of the pole-mounted circuit breaker and reliable limiting after flipping to the correct position, avoiding the cumbersome flipping and fixing steps in traditional installation methods and improving installation efficiency.

[0039] Reference Figure 1In this embodiment, the support frame 1 includes a transverse support rod 11, a longitudinal support rod 12, a vertical support rod 13, a reinforcing connecting rod 14, and a mounting platform 15. Two longitudinal support rods 12 are arranged parallel to each other, and at least two transverse support rods 11 are arranged between the two longitudinal support rods 12, serving as basic support and connection. The transverse support rods 11 and longitudinal support rods 12 can be connected by welding or bolts. In this embodiment, to improve the stability of the connection, triangular connecting seats are preferably provided on both sides of the end of the transverse support rod 11. One right-angle side wall of the triangular connecting seat abuts against the transverse support rod 11 and is fixedly connected by bolts, and the other right-angle side wall of the triangular connecting seat abuts against the longitudinal support rod 12 and is fixedly connected by bolts, thereby fixing the transverse support rod 11 and the longitudinal support rod 12. The transverse support rod 11 can be made of high-strength steel to ensure sufficient strength to support components such as the pole-mounted circuit breaker, or aluminum alloy can be used to reduce the overall weight, depending on the actual situation.

[0040] Vertical support rods 13 are respectively provided on the upper surfaces of the two longitudinal support rods 12, and extend upward. Preferably, multiple vertical support rods 13 can be arranged in an array. A reinforcing connecting rod 14 is provided between the two vertical support rods 13. The function of the reinforcing connecting rod 14 is to enhance the connection strength between the two vertical support rods 13, making the entire support frame 1 more stable. The vertical support rods 13 and the reinforcing connecting rod 14 can adopt the same connection method as the transverse support rods 11. A mounting platform 15 is provided on the upper side wall of the vertical support rod 13. The mounting platform 15 is used to install the rotating assembly 4 and other related components. The mounting platform 15 can also be constructed by two metal rods. An inclined support rod can also be fixed between the mounting platform 15 and the vertical support rods 13 to improve the stability of the mounting platform 15.

[0041] In addition, pulleys 16 are provided at both ends of the two longitudinal support rods 12. The pulleys 16 make the entire auxiliary device easy to move and can be flexibly adjusted according to actual installation requirements. The pulleys 16 can be casters, and preferably, they are equipped with foot brakes for easy fixing of the auxiliary device. Optionally, parts frames 17 can also be provided on the two transverse support rods 11. The parts frames 17 can be used to hold various parts required during the installation of the pole-mounted circuit breaker, making them easy for operators to access. The parts frames 17 can be fixed to the transverse support rods 11 by bolts or other means.

[0042] Reference Figure 1 and Figure 2In this embodiment, specifically, the first clamping plate 21 includes a base plate 211 and a side plate 212 connected to each other, with an L-shaped cross-section, wherein the base plate 211 is parallel to the first clamping plate 21. During installation, the base of the pole-mounted circuit breaker can be placed on the base plates 211 of the two first clamping plates 21 respectively, and then the second clamping plate 22 is pressed onto the base of the pole-mounted circuit breaker. The fixing assembly 3 includes fixing bolts 31 and fixing nuts 32. The base plate 211 and the second clamping plate 22 are both provided with openings for the fixing bolts 31 to pass through. The base material of the pole-mounted circuit breaker is provided with bolt holes on both sides. When the pole-mounted circuit breaker is placed on the base plate 211, the fixing bolts 31 can pass through the base plate 211, the pole-mounted circuit breaker and the second clamping plate 22 in sequence. Then, by tightening the fixing nuts 32, the pole-mounted circuit breaker can be firmly clamped between the first clamping plate 21 and the second clamping plate 22.

[0043] Reference Figure 2 and Figure 3 The rotating assembly 4 includes a rotating shaft 41 rotatably mounted on the support frame 1, and a power component 42 for driving the rotating shaft 41 to rotate. Preferably, to improve the stability of the rotating shaft 41, a rectangular plate can be fixed to the upper surface of the vertical support rod 13, with a support on the rectangular plate. The rotating shaft passes through the support and is rotatably connected to the support via a bearing. One end of the rotating shaft 41 passes through the support and is connected to the side plate 212. When the rotating shaft 41 rotates, it will drive the first clamping plate 21 to rotate, thereby realizing the flipping of the pole-mounted circuit breaker.

[0044] The power component 42 includes a worm gear 421, a worm 422, and a control handle 423. The worm gear 421 is coaxially connected to the rotating shaft 41, and the worm 422 meshes with the worm gear 421. The control handle is connected to the worm 422. When the control handle 423 is rotated, the worm 422 drives the worm gear 421 to rotate, thereby rotating the rotating shaft 41. The engagement of the worm gear 421 and the worm 422 serves two purposes: firstly, it provides a backstop effect, initially positioning the rotated first clamping plate 21; secondly, it provides a speed reduction effect, allowing for more precise control of the first clamping plate 21 and the position of the pole-mounted circuit breaker. To facilitate the installation of the worm gear 421 and the worm 422, in this embodiment, a rectangular base is fixed on the mounting platform 15. Both the worm gear 421 and the worm 422 are rotatably mounted within the rectangular base, and the end of the rotating shaft 41 furthest from the first clamping plate 21 is rotatably connected to the rectangular base.

[0045] Reference Figure 2 and Figure 3In this embodiment, the limiting component 5 includes a first mounting plate 51, a limiting screw 52, ​​and a handle 53. The first mounting plate 51 is parallel to the side plate 212 and mounted on the support frame 1, and is preferably fixed to the vertical support rod 13 by bolts. To avoid interference with the mounting platform 15, the limiting component 5 is preferably located on the side of the mounting control away from the mounting platform 15. The first mounting plate 51 has threaded holes, and the limiting screw 52 is threadedly connected to the first mounting plate 51 through these threaded holes. Both ends of the side plate 212 on the first clamping plate 21 have first limiting holes 213, which are symmetrically located on both sides of the rotating shaft 41. When the first clamping plate 21 rotates to a horizontal position (i.e., when the pole-mounted circuit breaker is facing forward) or flipped and reversed, the first limiting holes 213 align with the threaded holes. The handle 53 is connected to the end of the limiting screw 52 away from the side plate 212. When the first clamping plate 21 is in a horizontal position, the operator can rotate the handle 53 to move the end of the limiting screw 52 toward the side plate 212 and insert it into the first limiting hole 213, thus restricting the rotation of the first clamping plate 21 and keeping the pole-mounted circuit breaker in a specific position. When it is necessary to flip the pole-mounted circuit breaker, simply rotate the handle 53 in the opposite direction to drive the end of the limiting screw 52 out of the first limiting hole 213 and unlock the first clamping plate 21. Preferably, in order to improve the compatibility between the limiting screw 52 and the first limiting hole 213, the end of the limiting screw 52 near the side plate 212 can be set as a cylindrical rod without threads, and this cylindrical rod portion can be slightly smaller than the first limiting hole 213.

[0046] The implementation principle of the pole-mounted circuit breaker assembly auxiliary device in this application embodiment is as follows: When it is necessary to assemble the pole-mounted circuit breaker, first place the base part of the pole-mounted circuit breaker on two first clamping plates 21, then cover the second clamping plates 22 respectively, and lock them in place with fixing bolts 31 and fixing nuts 32; then turn the handle 53 to control the end of the limiting screw 52 to insert into the first limiting hole 213, and position the pole-mounted circuit breaker, so that the upper part of the pole-mounted circuit breaker can be assembled; after the assembly is completed, unlock the limiting screw 52, ​​and then drive the rotating shaft 41 to rotate by controlling the handle 423, so that the pole-mounted circuit breaker can be flipped. After the flipping is completed, lock the first clamping plate 21 with the limiting screw 52, ​​so that the parts on the back of the pole-mounted circuit breaker can continue to be assembled.

[0047] Example 2:

[0048] The difference between this embodiment and Embodiment 1 lies in the structure of the limiting component 5. (Refer to...) Figure 4 and Figure 5 In this embodiment, the limiting component 5 includes a second mounting plate 54, a positioning post 55, a limiting post 58, an elastic element 56, and a control element 57.

[0049] Specifically, the second mounting plate 54 has the same overall structure as the first mounting plate 51, and can also be fixed to the vertical support rod 13 by welding or bolting. The positioning post 55 is fixed to the second mounting plate 54 along the direction perpendicular to the side plate 212. The positioning post 55 can be cylindrical, and its end face near the side plate 212 has a receiving groove for the sliding of the limiting post 58. Second limiting holes 214 are provided at both ends of the side plate 212, and these holes are symmetrically located on both sides of the rotating shaft 41.

[0050] The elastic element 56 can be a spring, which is located between the bottom wall of the receiving groove and the limiting post 58. The spring always exerts an outward pushing force on the limiting post 58 to drive the end of the limiting post 58 to slide into the second limiting hole 214. The control element 57 includes a control link 571 and a control handle 572. One end of the control link 571 is connected to the limiting post 58, and the other end passes through the spring and out of the positioning post 55 to connect with the control handle 572. The end of the handle away from the positioning post 55 can have a force-applying hole for easy hand application. The sliding of the limiting post 58 can be controlled by the control handle 572. The end face of the positioning post 55 facing away from the side plate 212 is provided with interlocking placement grooves 551 and positioning grooves 552. When the control handle 572 falls into the placement groove 551 or the positioning groove 552, the spring is in a compressed state. When the control handle 572 is engaged in the placement groove 551, the end of the limiting post 58 disengages from the second limiting hole 214, and the first clamping plate 21 can rotate freely. When the control handle 572 is engaged in the positioning groove 552, the end of the limiting post 58 is inserted into the second limiting hole 214, and the spring is in a compressed state, which restricts the rotation of the first clamping plate 21.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An auxiliary device for assembling a pole-mounted circuit breaker, characterized in that: The device includes a support frame (1), a fixing seat (2), a fixing component (3), a rotating component (4), and a limiting component (5). The upper end of the support frame (1) has an installation space (6) for accommodating the pole-mounted circuit breaker and allowing it to rotate. The fixing seat (2) is respectively provided on both sides of the installation space (6). The fixing seat (2) includes a first clamping plate (21) provided on the support frame (1) and a second clamping plate (22) detachably provided on the first clamping plate (21). The rotating component (4) can drive the first clamping plate (21) to rotate. The limiting component (5) can restrict the rotation of the first clamping plate (21). The pole-mounted circuit breaker can be fixedly clamped between the first clamping plate (21) and the second clamping plate (22) by the fixing component (3).

2. The auxiliary device for assembling a pole-mounted circuit breaker according to claim 1, characterized in that: The rotating assembly (4) includes a rotating shaft (41) rotatably mounted on the support frame (1) and a power component (42) for driving the rotating shaft (41) to rotate. The first clamping plate (21) includes a bottom plate (211) and a side plate (212) connected to each other. The bottom plate (211) is parallel to the first clamping plate (21), and one end of the rotating shaft (41) is connected to the side plate (212).

3. The auxiliary device for assembling a pole-mounted circuit breaker according to claim 2, characterized in that: The power component (42) includes a worm gear (421), a worm (422), and a control grip (423). The worm gear (421) is coaxially connected to the rotating shaft (41), the worm (422) meshes with the worm gear (421), and the control grip (423) is connected to one end of the worm (422).

4. The auxiliary device for assembling a pole-mounted circuit breaker according to claim 2, characterized in that: The fixing component (3) includes a fixing bolt (31) and a fixing nut (32). The base plate (211) and the second clamping plate (22) are both provided with openings for the fixing bolt (31) to pass through. When the pole-mounted circuit breaker is placed on the base plate (211), the fixing bolt (31) can pass through the base plate (211), the pole-mounted circuit breaker and the second clamping plate (22) in sequence.

5. The auxiliary device for assembling a pole-mounted circuit breaker according to claim 4, characterized in that: The limiting component (5) includes a first mounting plate (51), a limiting screw (52), and a handle (53). The first mounting plate (51) is disposed on the support frame (1). The first mounting plate (51) has a threaded hole. The side plate (212) has a first limiting hole (213) at both ends. The first limiting holes (213) are symmetrically opened on both sides of the rotating shaft (41). The handle (53) is connected to the end of the limiting screw (52) away from the side plate (212). When the first clamping plate (21) is in a horizontal state, the limiting screw (52) can thread through the threaded hole on the first mounting plate (51) and be inserted into the first limiting hole (213).

6. The auxiliary device for assembling a pole-mounted circuit breaker according to claim 4, characterized in that: The limiting component (5) includes a second mounting plate (54), a positioning post (55), a limiting post (58), an elastic element (56), and a control element (57). The second mounting plate (54) is disposed on the support frame (1). The positioning post (55) is fixed on the second mounting plate (54) along the direction perpendicular to the side plate (212). The end face of the positioning post (55) near the side plate (212) is provided with a receiving groove for the limiting post (58) to slide. The side plate (212) is provided with a second limiting hole (214) at both ends. The second limiting hole (214) is symmetrically opened on both sides of the rotating shaft (41). The elastic element (56) can drive the end of the limiting post (58) to slide into the second limiting hole (214). The control element (57) can control the limiting post (58) to disengage from the second limiting hole (214).

7. The auxiliary device for assembling a pole-mounted circuit breaker according to claim 6, characterized in that: The elastic element (56) is a spring, which is disposed between the bottom wall of the receiving groove and the limiting post (58). The control element (57) includes a control link (571) and a control handle (572). One end of the control link (571) is connected to the limiting post (58), and it passes through the positioning post (55) and is connected to the control handle (572). The end face of the positioning post (55) away from the side plate (212) is provided with interlocking placement grooves (551) and positioning grooves (552). When the control handle (572) is engaged in the placement groove (551), the end of the limiting post (58) is dislodged from the second limiting hole (214). When the control handle (572) is engaged in the positioning groove (552), the end of the limiting post (58) is inserted into the second limiting hole (214). At this time, the spring is in a compressed state.

8. An auxiliary device for assembling a pole-mounted circuit breaker according to any one of claims 5-7, characterized in that: The support frame (1) includes a transverse support rod (11), a longitudinal support rod (12), a vertical support rod (13), a reinforcing link (14), and a mounting platform (15). Two longitudinal support rods (12) are arranged parallel to each other. At least two transverse support rods (11) are arranged between the two longitudinal support rods (12). The vertical support rods (13) are respectively arranged on the two longitudinal support rods (12). The reinforcing link (14) is arranged between the two vertical support rods (13). The mounting platform (15) is arranged on the vertical support rod (13). The rotating component (4) is arranged on the mounting platform (15), and the limiting component (5) is arranged on the vertical support rod (13).

9. The auxiliary device for assembling a pole-mounted circuit breaker according to claim 8, characterized in that: Both ends of the two longitudinal support rods (12) are provided with pulleys (16).

10. The auxiliary device for assembling a pole-mounted circuit breaker according to claim 9, characterized in that: Part frames (17) are provided on the two said transverse support rods (11).

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