A primary and secondary fused pole-mounted circuit breaker convenient to install

Abstract

The application relates to a primary and secondary fusion pole-mounted circuit breaker convenient to install, and relates to the technical field of power equipment, which comprises a circuit breaker body and a support, the bottom of the circuit breaker body is fixedly provided with a mounting plate, the mounting plate is placed on the top of the support, the two ends of the support are provided with fixed clamps through fastening bolts, the bottom of the mounting plate is fixedly provided with threaded inserting rods at four corners, the support is provided with upper and lower penetrating mounting holes corresponding to the positions of the threaded inserting rods at the four corners of the bottom of the mounting plate, and the threaded inserting rods are fixedly provided with lifting rings at one end. The application is driven by the transmission cooperation of the chain wheel and the chain, staff members do not need to climb to the installation height of the circuit breaker, the worm can be driven to rotate in the ground safety area, the worm wheel and the winding roller are further wound or release the steel wire rope, the traction adjustment of the circuit breaker body is realized through the cooperation of the hook and the lifting ring, the threaded inserting rods are accurately inserted into the mounting holes, and the danger of high-altitude operation is greatly reduced.

Description

Technical Field

[0001] This application relates to the technical field of power equipment, and in particular to a primary and secondary integrated pole-mounted circuit breaker that is easy to install. Background Technology

[0002] The primary and secondary integrated pole-mounted circuit breaker is a power protection device commonly used in power distribution systems. It can protect medium and low voltage electrical equipment and power supplies, preventing accidents caused by current overload, short circuit and other abnormal conditions.

[0003] An existing patent (publication number: CN220020967U) discloses a primary and secondary integrated pole-mounted circuit breaker, belonging to the field of power distribution equipment technology. It includes a circuit breaker body, a support frame located below the circuit breaker body, a fixing mechanism at the end of the support frame, and threaded rods evenly fixed to the bottom of the circuit breaker body. Each threaded rod has a hanging hole at its bottom end. This utility model's traction mechanism, consisting of a control box, worm gear, adjusting block, worm wheel, rope coil, wire rope, and hook on the support frame, allows the hook to engage the hanging holes on the threaded rods when suspending the circuit breaker body. During suspension, the tightening of the wire rope pulls the circuit breaker body, inserting the threaded rods into the oblong holes. This makes the connection of the circuit breaker body more convenient, saving time and effort. Furthermore, after connection, the traction mechanism can be used for locking and fixing, improving installation stability.

[0004] While the above method can guide the installation of the hoisted circuit breaker, it requires workers to climb to the installation height of the circuit breaker to operate the adjusting block to drive the worm gear to rotate. This poses a significant risk during the hoisting process, as it could easily injure workers or cause them to fall from a height. Utility Model Content

[0005] The purpose of this application is to provide an easy-to-install primary and secondary integrated pole-mounted circuit breaker, which has the advantages of allowing the installation of the circuit breaker without requiring workers to climb to the installation height to drive the worm gear to rotate and guide the installation of the circuit breaker, enabling workers to operate from a safe area on the ground, reducing the risk factor during the circuit breaker installation process, and solving the problems mentioned in the background art.

[0006] This application provides a primary and secondary integrated pole-mounted circuit breaker that is easy to install, employing the following technical solution: A primary and secondary integrated pole-mounted circuit breaker that is easy to install includes a circuit breaker body and a bracket. A mounting plate is fixedly installed at the bottom of the circuit breaker body, and the mounting plate is placed on top of the bracket. Fixing clips are installed at both ends of the bracket using fastening bolts. Threaded rods are fixedly installed at each of the four corners of the bottom of the mounting plate. The bracket has through-hole mounting holes corresponding to the positions of the threaded rods at the four corners of the bottom of the mounting plate. A lifting ring is fixedly installed at one end of each threaded rod. An adjustment box is installed at the bottom of the bracket via an installation assembly. The adjustment box contains a worm gear and four... The four worm gears mesh with a worm. The bottom of each worm gear is rotatably mounted on the bottom of the inner wall of the regulating box via a rotating shaft. One end of the worm is rotatably mounted on one side of the inner wall of the regulating box, and the other end of the worm extends through one side of the regulating box to the outside of the regulating box. A take-up roller is fixedly mounted on the top of each worm gear. A steel wire rope is wound on the outer surface of the middle part of the take-up roller. The steel wire rope extends through a wire-passing hole on the side of the regulating box to the outside of the regulating box. A hook is fixedly mounted on the end of the steel wire rope away from the take-up roller. A sprocket is mounted on one end of the worm via a connecting assembly. A chain is fitted on the outer surface of the middle part of the sprocket, and the chain is connected to the sprocket for transmission.

[0007] By adopting the above technical solution, the transmission between the sprocket and the chain can be used to allow workers to drive the worm gear to rotate from a safe area on the ground without having to climb to the installation height of the circuit breaker. This, in turn, drives the worm wheel and the winding roller to wind or release the wire rope. The traction adjustment of the circuit breaker body is achieved through the cooperation of the hook and the lifting ring, so that the threaded rod can be accurately inserted into the installation hole, which greatly reduces the danger of high-altitude operation.

[0008] Preferably, two guard plates are fixedly provided at both ends of the outer surface of the middle part of the sprocket, and the chain is located between the two guard plates.

[0009] By adopting the above technical solution, the guard plate can limit and protect the chain, prevent the chain from falling off the sprocket during transmission, ensure the stability of transmission, and thus ensure the smooth progress of the traction adjustment process of the circuit breaker body.

[0010] Preferably, the installation assembly includes a plug sleeve and a plug rod. The plug sleeve is fixedly disposed at the bottom of the bracket, and the plug rod is fixedly disposed at the top of the adjustment box. One end of the outer surface of the plug rod is inserted into the inner wall of the middle part of the plug sleeve. The plug sleeve and the plug rod are fixedly connected by fastening bolts.

[0011] By adopting the above technical solution, the installation and disassembly of the regulating box and the bracket can be quickly realized by using the plug-in sleeve and the plug-in rod and fixing it with fastening bolts. After the circuit breaker body is installed, the regulating box can be removed from the bottom of the bracket for reuse. There is no need to set up regulating boxes and other components under the bracket used for each circuit breaker body installation, which reduces the installation cost.

[0012] Preferably, the connecting assembly includes an extension rod, which is fixedly disposed on the side of the sprocket near the adjusting box, and the extension rod is located between the worm gear and the sprocket.

[0013] By adopting the above technical solution, the extension rod can increase the distance between the worm gear and the sprocket, and increase the distance between the sprocket and the bracket. This allows workers to operate the chain-driven sprocket rotation further away from the installation area, avoiding the possibility of objects falling and injuring workers below during the hoisting of the circuit breaker body, and further improving the safety of hoisting and installing the circuit breaker body.

[0014] Preferably, a plug-in block is fixedly provided at the end of the extension rod away from the sprocket, and a plug-in hole is opened at one end of the worm gear, with the plug-in block inserted into the inner wall of the middle part of the plug-in hole.

[0015] By adopting the above technical solution, the plug-in block and the plug-in hole can be plugged in and connected quickly to the extension rod and the worm gear. The extension rod can be easily removed from the worm gear, making it convenient to store the adjustment box and extension rod and other components separately, and thus making it convenient to transport the adjustment box and extension rod and other components.

[0016] Preferably, the outer surface of the middle part of the plug block is quadrilateral, the shape of the inner wall of the middle part of the plug hole is adapted to the shape of the outer surface of the middle part of the plug block, and the plug block and the worm gear are fixedly connected by fastening bolts.

[0017] By adopting the above technical solution, the quadrilateral plug-in block and the matching plug-in hole can effectively prevent relative rotation between the extension rod and the worm gear, ensuring the stability of power transmission. In addition, the fastening bolts further enhance the firmness of the connection and prevent loosening during operation.

[0018] Preferably, the distance between the top outer surface of the worm gear and the top of the inner wall of the adjusting box is adapted to the height of the winding roller, and the top of the winding roller is in contact with the top of the inner wall of the adjusting box.

[0019] By adopting the above technical solution, the distance between the worm gear and the top of the inner wall of the adjustment box is matched with the height of the take-up roller, and the top of the take-up roller contacts the top of the inner wall of the adjustment box. This can prevent the wire rope from falling off in large quantities from the top of the take-up roller due to traction force, thus preventing the wire rope from being unable to stay taut. It also prevents the wire rope from becoming slack and unable to stably pull the lifting ring through the hook.

[0020] Preferably, a positioning rod is fixedly provided at the top of the inner wall of the adjusting box, the positioning rod extends into the inner wall of the top end of the take-up roller, and the outer surface of the middle part of the positioning rod is rotatably connected to the inner wall of the top end of the take-up roller.

[0021] By adopting the above technical solution, the positioning rod extends to the inner wall of the top of the winding roller and is rotatably connected to it, which can play a positioning and support role for the winding roller, further enhance the stability of the winding roller when rotating, avoid the winding roller from tilting or shaking due to uneven force, and ensure the smoothness of the wire rope winding process.

[0022] In summary, this application includes at least one of the following beneficial technical effects: This easy-to-install primary and secondary integrated pole-mounted circuit breaker, through the transmission cooperation of sprockets and chains, allows workers to drive the worm gear to rotate from a safe area on the ground without climbing to the installation height of the circuit breaker. This, in turn, drives the worm wheel and winding roller to wind or release the wire rope. The cooperation of hooks and lifting rings enables the traction adjustment of the circuit breaker body, allowing the threaded rod to be accurately inserted into the installation hole, greatly reducing the danger of high-altitude operations. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present application; Figure 2 This is a schematic diagram of the front structure of this application; Figure 3 This is a schematic diagram of the structure on the right side of this application; Figure 4 This is an exploded view of the structure of this application; Figure 5 This is a top sectional view of the regulating box in this application; Figure 6 This is a front sectional view of the regulating box in this application.

[0024] In the picture: 1. Circuit breaker body; 2. Mounting plate; 3. Fixing clip; 4. Bracket; 5. Threaded rod; 6. Lifting eye; 7. Mounting hole; 8. Mounting assembly; 801. Plug sleeve; 802. Plug rod; 9. Adjustment box; 10. Worm gear; 11. Worm; 12. Take-up roller; 13. Wire rope; 14. Hook; 15. Connecting assembly; 1501. Plug hole; 1502. Plug block; 1503. Extension rod; 16. Sprocket; 17. Chain; 18. Guard plate; 19. Positioning rod. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail below.

[0026] Example 1: An easy-to-install primary and secondary integrated pole-mounted circuit breaker, please refer to [link / reference]. Figure 1 , Figure 3 and Figure 4 The circuit breaker includes a circuit breaker body 1 and a bracket 4. A mounting plate 2 is fixedly installed at the bottom of the circuit breaker body 1. The mounting plate 2 is placed on top of the bracket 4. Fixing clips 3 are installed at both ends of the bracket 4 by fastening bolts. Threaded rods 5 are fixedly installed at the four corners of the bottom of the mounting plate 2. The bracket 4 has through mounting holes 7 at the four corners of the bottom of the mounting plate 2 corresponding to the positions of the threaded rods 5. A lifting ring 6 is fixedly installed at one end of the threaded rod 5.

[0027] Please see Figure 3 , Figure 5 and Figure 6 An adjustment box 9 is mounted on the bottom of the bracket 4 via an installation assembly 8. Inside the adjustment box 9, there is a worm gear 11 and four worm wheels 10. All four worm wheels 10 mesh with the worm gear 11. The bottom of the worm wheels 10 is rotatably mounted on the bottom of the inner wall of the adjustment box 9 via a rotating shaft. One end of the worm gear 11 is rotatably mounted on one side of the inner wall of the adjustment box 9, and the other end of the worm gear 11 extends through one side of the adjustment box 9 to the outside of the adjustment box 9. A take-up roller 12 is fixedly mounted on the top of the worm wheel 10. A steel wire rope 13 is wound on the outer surface of the middle part of the take-up roller 12. The steel wire rope 13 extends through a wire hole opened on the side of the adjustment box 9 to the outside of the adjustment box 9. A hook 14 is fixedly mounted on the end of the steel wire rope 13 away from the take-up roller 12. A sprocket 16 is mounted on one end of the worm gear 11 via a connecting assembly 15. A chain 17 is sleeved on the outer surface of the middle part of the sprocket 16. The chain 17 is connected to the sprocket 16 for transmission.

[0028] Please see Figure 1 , Figure 2 and Figure 3Two guard plates 18 are fixedly installed at both ends of the outer surface of the middle part of the sprocket 16. The chain 17 is located between the two guard plates 18. The guard plates 18 can limit and protect the chain 17, prevent the chain 17 from falling off the sprocket 16 during the transmission process, ensure the stability of the transmission, and thus ensure the smooth progress of the traction adjustment process of the circuit breaker body 1.

[0029] Please see Figure 2 , Figure 3 and Figure 4 The installation component 8 includes a plug-in sleeve 801 and a plug-in rod 802. The plug-in sleeve 801 is fixedly installed at the bottom of the bracket 4, and the plug-in rod 802 is fixedly installed at the top of the regulating box 9. One end of the outer surface of the plug-in rod 802 is inserted into the inner wall of the middle part of the plug-in sleeve 801. The plug-in sleeve 801 and the plug-in rod 802 are fixedly connected by fastening bolts. By using the plug-in engagement of the plug-in sleeve 801 and the plug-in rod 802 and fixing them with fastening bolts, the installation and disassembly of the regulating box 9 and the bracket 4 can be quickly realized. After the circuit breaker body 1 is installed, the regulating box 9 can be removed from the bottom of the bracket 4 for reuse. It is not necessary to set up the regulating box 9 and other components under the bracket 4 used for each circuit breaker body 1 installation, thus reducing the installation cost.

[0030] Please see Figure 1 , Figure 3 and Figure 4 The connecting assembly 15 includes an extension rod 1503, which is fixedly installed on the side of the sprocket 16 near the adjusting box 9. The extension rod 1503 is located between the worm gear 11 and the sprocket 16. The extension rod 1503 can increase the distance between the worm gear 11 and the sprocket 16, and increase the distance between the sprocket 16 and the bracket 4. This allows the operator to operate the chain 17 to drive the sprocket 16 to rotate further away from the installation area, avoiding the situation where objects fall and injure the operators below during the hoisting of the circuit breaker body 1, and further improving the safety of hoisting and installing the circuit breaker body 1.

[0031] Please see Figure 4 and Figure 6 An insertion block 1502 is fixedly provided at the end of the extension rod 1503 away from the sprocket 16. An insertion hole 1501 is opened at one end of the worm gear 11. The insertion block 1502 is inserted into the inner wall of the middle part of the insertion hole 1501. The insertion and engagement of the insertion block 1502 and the insertion hole 1501 can quickly realize the connection between the extension rod 1503 and the worm gear 11. The extension rod 1503 can be easily removed from the worm gear 11, making it convenient to store the adjustment box 9 and the extension rod 1503 and other components separately, and thus making it convenient to transport the adjustment box 9 and the extension rod 1503 and other components.

[0032] Please see Figure 1 , Figure 4 and Figure 6 The outer surface of the middle part of the plug block 1502 is quadrilateral, and the shape of the inner wall of the middle part of the plug hole 1501 is adapted to the shape of the outer surface of the middle part of the plug block 1502. The plug block 1502 and the plug hole 1501 are fixedly connected to the worm gear 11 by fastening bolts. The quadrilateral plug block 1502 and the matching plug hole 1501 can effectively prevent relative rotation between the extension rod 1503 and the worm gear 11, ensuring the stability of power transmission. With the fastening bolts, the connection is further strengthened, and loosening during operation is avoided.

[0033] Example 2: An easy-to-install primary and secondary integrated pole-mounted circuit breaker, please refer to [link / reference]. Figure 6 The distance between the top outer surface of the worm gear 10 and the top of the inner wall of the adjusting box 9 is adapted to the height of the take-up roller 12. The top of the take-up roller 12 contacts the top of the inner wall of the adjusting box 9. The distance between the worm gear 10 and the top of the inner wall of the adjusting box 9 is adapted to the height of the take-up roller 12. The contact between the top of the take-up roller 12 and the top of the inner wall of the adjusting box 9 can prevent the wire rope 13 from falling off in large quantities from the top of the take-up roller 12 due to the traction force, which would cause the wire rope 13 to be unable to be in a taut state. This also prevents the wire rope 13 from becoming slack and unable to stably pull the lifting ring 6 through the hook 14.

[0034] Please see Figure 4 and Figure 6 A positioning rod 19 is fixedly installed on the top of the inner wall of the adjusting box 9. The positioning rod 19 extends to the inner wall of the top of the winding roller 12. The outer surface of the middle part of the positioning rod 19 is rotatably connected to the inner wall of the top of the winding roller 12. The positioning rod 19 extends to the inner wall of the top of the winding roller 12 and is rotatably connected to it. It can play a positioning and support role for the winding roller 12, further enhance the stability of the winding roller 12 when rotating, avoid the winding roller 12 from tilting or shaking due to uneven force, and ensure the smoothness of the wire rope 13 winding process.

[0035] The implementation principle of this application embodiment is as follows: The bracket 4 is installed on the utility pole at the designated installation height of the circuit breaker body 1 using the fixing clip 3. The circuit breaker body 1 and the mounting plate 2 are suspended by a crane, so that the circuit breaker body 1 and the mounting plate 2 are above the bracket 4. The chain 17 is operated to drive the sprocket 16 to rotate, so that the extension rod 1503 drives the worm gear 11 to rotate through the insertion block 1502 and the insertion hole 1501. The worm gear 11 drives the four worm wheels 10 to rotate, so that the worm wheels 10 drive the winding roller 12 to rotate, thereby releasing the wire rope 13. The hook 14 and the wire rope 13 pass through the mounting hole 7 from below to the top, so that the hook 14 is hung on the lifting ring 6 at one end of the threaded insertion rod 5. The worker operates the chain 17 from the safe area on the ground to drive the sprocket 16 to rotate, which drives the worm gear 11 to rotate, so that the worm gear 11 drives the four worm wheels 10 to rotate, so that the worm wheels 10 drive the four worm wheels 10 to rotate. The winding roller 12 rotates to wind up the wire rope 13. During the winding process, the wire rope 13 will pull the threaded rod 5 through the hook 14 and the lifting ring 6 until the threaded rod 5 at the four corners of the bottom of the traction mounting plate 2 is inserted into the corresponding mounting hole 7. Remove the hook 14 from the lifting ring 6 and screw the fixing nut on the threaded rod 5. Then, the threaded rod 5 and the fixing nut will fix the mounting plate 2 on the bracket 4, completing the installation of the circuit breaker body 1. Remove the fastening bolts between the plug sleeve 801 and the plug rod 802, and release the fixation between the plug rod 802 and the plug sleeve 801. Remove the adjusting box 9 from the bottom of the bracket 4. Remove the fastening bolts between the plug block 1502 and the worm gear 11, and release the fixation between the extension rod 1503 and the worm gear 11. Remove the extension rod 1503 from one end of the worm gear 11.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker that is easy to install, comprising a circuit breaker body (1) and a bracket (4), characterized in that: A mounting plate (2) is fixedly installed at the bottom of the circuit breaker body (1). The mounting plate (2) is placed on top of the bracket (4). Fixing clips (3) are installed at both ends of the bracket (4) by fastening bolts. Threaded rods (5) are fixedly installed at the four corners of the bottom of the mounting plate (2). The bracket (4) has through mounting holes (7) at the positions of the threaded rods (5) at the four corners of the bottom of the mounting plate (2). A lifting ring (6) is fixedly installed at one end of the threaded rod (5). An adjusting box (9) is installed at the bottom of the bracket (4) by a mounting assembly (8). The adjusting box (9) is equipped with a worm (11) and four worm wheels (10) inside. The four worm wheels (10) are all engaged with the worm (11). The bottom of the worm wheels (10) is rotatably mounted on the adjusting box by a rotating shaft. 9) At the bottom of the inner wall, one end of the worm (11) is rotatably set on one side of the inner wall of the regulating box (9), and the other end of the worm (11) extends through one side of the regulating box (9) to the outside of the regulating box (9). A winding roller (12) is fixedly set on the top of the worm wheel (10). A steel wire rope (13) is wound on the outer surface of the middle part of the winding roller (12). The steel wire rope (13) extends through the wire hole opened on the side of the regulating box (9) to the outside of the regulating box (9). A hook (14) is fixedly set on the end of the steel wire rope (13) away from the winding roller (12). A sprocket (16) is installed on one end of the worm (11) through the connecting assembly (15). A chain (17) is sleeved on the outer surface of the middle part of the sprocket (16). The chain (17) is connected to the sprocket (16) in a transmission.

2. The easy-to-install primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: Two guard plates (18) are fixedly installed at both ends of the outer surface of the middle part of the sprocket (16), and the chain (17) is located between the two guard plates (18).

3. The easy-to-install primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The installation assembly (8) includes a plug sleeve (801) and a plug rod (802). The plug sleeve (801) is fixedly disposed at the bottom of the bracket (4), and the plug rod (802) is fixedly disposed at the top of the adjustment box (9). One end of the outer surface of the plug rod (802) is inserted into the inner wall of the middle part of the plug sleeve (801). The plug sleeve (801) and the plug rod (802) are fixedly connected by fastening bolts.

4. The easy-to-install primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The connecting assembly (15) includes an extension rod (1503), which is fixedly disposed on the side of the sprocket (16) near the regulating box (9) and is located between the worm gear (11) and the sprocket (16).

5. A primary and secondary integrated pole-mounted circuit breaker that is easy to install according to claim 4, characterized in that: The extension rod (1503) is fixedly provided with a plug block (1502) at one end away from the sprocket (16), and a plug hole (1501) is opened at one end of the worm (11). The plug block (1502) is inserted into the inner wall of the middle part of the plug hole (1501).

6. A primary and secondary integrated pole-mounted circuit breaker that is easy to install according to claim 5, characterized in that: The outer surface of the middle part of the plug block (1502) is quadrilateral, and the shape of the inner wall of the middle part of the plug hole (1501) is adapted to the shape of the outer surface of the middle part of the plug block (1502). The plug block (1502) and the worm (11) are fixedly connected by fastening bolts.

7. The easy-to-install primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The distance between the top outer surface of the worm gear (10) and the top of the inner wall of the adjusting box (9) is adapted to the height of the winding roller (12), and the top of the winding roller (12) is in contact with the top of the inner wall of the adjusting box (9).

8. A primary and secondary integrated pole-mounted circuit breaker that is easy to install according to claim 1, characterized in that: A positioning rod (19) is fixedly installed on the top of the inner wall of the adjusting box (9). The positioning rod (19) extends to the inner wall of the top of the take-up roller (12). The outer surface of the middle part of the positioning rod (19) is rotatably connected to the inner wall of the top of the take-up roller (12).

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