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

Abstract

The present application relates to pole-mounted circuit breaker technical field, especially to a primary and secondary fusion pole-mounted circuit breaker convenient to install, including circuit breaker body, two mounting frames are arranged below the circuit breaker body and are fixed, a hoisting seat is arranged on one side of the circuit breaker body, a top seat and a bottom seat are arranged on the upper and lower sides of the hoisting seat respectively, the hoisting seat, the top seat and the bottom seat are all composed of two arc-shaped frames connected by bolts, by setting the hoisting assembly and the hoisting seat, by cooperating with the fixed pulley on the top seat and the movable pulley on the hoisting seat, when winding the steel cable, the fixed pulley and the movable pulley form a labor-saving pulley block, which greatly reduces the lifting force, in the mountainous area and narrow road section where the crane cannot enter, the lifting and installation of the circuit breaker can be completed by the ground manpower only, the adaptability of the equipment to the complex installation environment is improved, a single person can complete the equipment hoisting, the labor intensity of manual carrying and high-altitude lifting is greatly reduced, the installation time is shortened, and the construction efficiency is improved.

Description

Technical Field

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

[0002] The integrated pole-mounted circuit breaker is an outdoor power distribution device that deeply integrates the high-voltage circuit breaker body (primary equipment) with the intelligent control terminal (secondary equipment). Its core lies in achieving intelligent integration of protection, control, metering, and communication functions through integrated design. It is widely used in medium-voltage power distribution networks to improve power supply reliability.

[0003] The prior art publication CN222801722U provides a primary and secondary integrated pole-mounted circuit breaker. By fixing the mounting bracket to the surface of the mounting base, the number of fasteners fixed to the pole surface is reduced, the space occupied is smaller, and the aesthetics of the city are improved. At the same time, the structural design facilitates disassembly and assembly during subsequent maintenance.

[0004] During installation, the circuit breaker still requires hoisting equipment to lift it as a whole or manual transport to the installation location before it can be installed on the pole. Especially in mountainous areas with complex terrain, where roads are rugged and narrow, hoisting equipment cannot reach the work site. Manual transport and high-altitude installation are necessary, which is not only inefficient and labor-intensive, but also prone to safety hazards such as equipment collisions during transport and high-altitude installation. This fails to meet the needs of rapid, safe, and convenient installation for mountainous lines.

[0005] In summary, the existing technology lacks a method for installing circuit breakers without the need for hoisting equipment. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of the prior art by proposing an easy-to-install primary and secondary integrated pole-mounted circuit breaker.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a primary and secondary integrated pole-mounted circuit breaker that is easy to install, comprising a circuit breaker body, two mounting brackets fixedly installed below the circuit breaker body, a lifting base provided on one side of the circuit breaker body, a top seat and a base provided on the upper and lower sides of the lifting base respectively, the lifting base, the top seat and the base are all composed of two arc-shaped frames connected by bolts, two connecting reinforcement components are fixedly connected in a symmetrical structure on the lifting base, anti-fall trigger components are rotatably connected on both sides of the lifting base, and lifting components are fixedly connected in a symmetrical structure on both sides of the base.

[0008] Preferably, one end of the mounting frame is fixedly connected to the lifting base, and a support frame is fixedly connected to the bottom of the mounting frame.

[0009] Preferably, the inner wall of the hoisting base has an arc-shaped structure with two sets of contact wheels rotatably connected. The inner wall of the hoisting base also has an arc-shaped structure with multiple anti-fall friction blocks in sliding engagement. The inner wall of each anti-fall friction block is fixedly connected with multiple springs, the other end of which is fixedly connected to the inner wall of the hoisting base. The inner wall of each anti-fall friction block is fixedly connected with a contact rod, which is slidably engaged with the inner wall of the hoisting base.

[0010] Preferably, the bottom ends of both sides of the top seat have two symmetrical insertion holes. The inner walls of both sides of the insertion holes are slidably fitted with locking blocks. A spring is fixedly connected between the inner end of the locking block and the inner wall of the insertion hole. Both sides of the top seat have connecting grooves. A threaded rod is rotatably connected through the side wall of the connecting groove. Fixed pulleys are installed on both sides of the top seat.

[0011] Preferably, the connecting reinforcement assembly includes a reinforcing rod with a tapered top. The outer wall of the reinforcing rod is movably inserted into the inner wall of the insertion hole. A snap-fit ​​ring groove is provided on the reinforcing rod, and the inner wall of the snap-fit ​​ring groove is movably inserted into the outer end of the snap block. A tapered ring is slidably fitted at the bottom of the snap-fit ​​ring groove. An electric actuator is fixedly connected to the bottom of the tapered ring, and the electric actuator is fixedly connected to the inner wall of the reinforcing rod. The outer wall of the tapered ring is in slidable contact with the outer end of the snap block.

[0012] Preferably, the fall arrestor triggering component includes two U-shaped rods arranged in a cross structure. The two U-shaped rods are rotatably connected near their bottom ends by a pin. One end of the pin is rotatably connected to the hoisting seat. A slotted frame is slidably fitted between the bottom ends of the two U-shaped rods.

[0013] Preferably, a guide rod is slidably fitted through the middle of the slotting frame, the top end of the guide rod is fixedly connected to the hoisting seat, and an extrusion frame is fixedly connected to the other end of the slotting frame. An inclined surface is formed on one side of the bottom end of the extrusion frame, and the inclined surface is slidably contacted with the outer end of the contact rod.

[0014] Preferably, the hoisting assembly includes a winding base, which is fixedly connected to the base. A reel is rotatably connected to the inner wall of the winding base, and a steel cable is wound around the outer wall of the reel. A movable pulley is installed on the hoisting base. The other end of the steel cable passes over both the fixed pulley and the movable pulley and is fixedly connected to a connecting block. A fixing hole is provided on the connecting block. The outer wall of the connecting block is movably inserted into the inner wall of the connecting groove. The inner wall of the fixing hole is movably inserted into the outer wall of the threaded rod. The outer wall of the steel cable is in sliding contact with the outer wall of the top end of the U-shaped rod.

[0015] Preferably, a worm gear is fixedly connected to one end of the reel, and a worm sleeve is engaged with the worm gear below it. The two ends of the worm sleeve are rotatably connected to the inner wall of the take-up seat, and a throttle is movably inserted between the two worm sleeves.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up lifting components and lifting bases, and by cooperating with the fixed pulleys on the top base and the movable pulleys on the lifting base, the force-saving pulley group composed of the fixed pulleys and movable pulleys greatly reduces the lifting force when winding the steel cable. In mountainous areas and narrow road sections where cranes cannot enter, the circuit breaker can be lifted and installed by ground manpower alone, which improves the equipment's adaptability to complex installation environments. A single person can complete the lifting of the equipment, greatly reducing the labor intensity of manual handling and high-altitude lifting, shortening the installation time, and improving construction efficiency. 2. By setting up a connecting reinforcement component, when the hoisting base is moved into place, the locking block inside the top base will insert into the reinforcing rod with a locking ring groove, which can perform secondary positioning and reinforcement of the hoisting base and the top base, preventing the equipment from loosening or shifting due to wind vibration or pole swaying during operation, thus improving the overall structural reliability. At the same time, the locking block and the reinforcing rod can share the tension of the steel cable, so that the weight of the equipment is shared by the hoisting base and the top base, reducing local stress concentration and extending the service life of the device. 3. By installing a spring-connected anti-fall friction block in the hoisting base in conjunction with the anti-fall triggering component, when the steel cable breaks, the anti-fall triggering component, which is limited by the steel cable, is released from its limit, allowing the spring-connected anti-fall friction block to abut against the utility pole, thereby slowing down the descent speed of the hoisting base and improving the safety of circuit breaker installation during the hoisting base's lifting and lowering process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the circuit breaker body structure of a primary and secondary integrated pole-mounted circuit breaker that is easy to install according to the present invention; Figure 2 This is a schematic diagram of the installation of the integrated structure of the primary and secondary integrated pole-mounted circuit breaker of the present invention, which is easy to install; Figure 3 This is a schematic diagram of the mounting frame structure for a primary and secondary integrated pole-mounted circuit breaker that is easy to install according to the present invention; Figure 4 This is a partial cross-sectional schematic diagram of the structure of the hoisting base and other components of a primary and secondary integrated pole-mounted circuit breaker that is easy to install according to the present invention; Figure 5 This is a partial sectional view of the structure of the top seat and other components of a primary and secondary integrated pole-mounted circuit breaker that is easy to install according to the present invention. Figure 6 This is a schematic diagram of the connection reinforcement assembly structure of a primary and secondary integrated pole-mounted circuit breaker that is easy to install according to the present invention; Figure 7 This is a schematic diagram of the anti-fall triggering component structure of a primary and secondary integrated pole-mounted circuit breaker that is easy to install according to the present invention; Figure 8 This is a partial cross-sectional schematic diagram of the hoisting assembly structure of a primary and secondary integrated pole-mounted circuit breaker that is easy to install according to the present invention.

[0018] The diagram shows: 1. Circuit breaker body; 2. Mounting bracket; 3. Lifting base; 4. Top base; 5. Base; 6. Connecting reinforcement assembly; 7. Anti-fall trigger assembly; 8. Lifting assembly; 201. Support frame; 301. Contact wheel; 302. Anti-fall friction block; 303. Spring 1; 304. Contact rod; 305. Moving pulley; 401. Plug-in hole; 402. Locking block; 403. Spring 2; 404. Connecting groove; 405. 406. Threaded rod; 607. Fixed pulley; 608. Reinforcing rod; 609. Snap ring groove; 6000. Conical ring; 601. Electric actuator; 702. U-shaped rod; 703. Slotted frame; 704. Guide rod; 705. Extrusion frame; 706. Inclined surface; 807. Rewinding seat; 808. Reel; 809. Steel cable; 8000. Connecting block; 8001. Fixing hole; 801. Worm gear; 802. Worm sleeve; 803. Throttle. Detailed Implementation

[0019] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0020] like Figures 1-8 The diagram shows a primary and secondary integrated pole-mounted circuit breaker that is easy to install. It includes a circuit breaker body 1, two mounting brackets 2 are fixedly installed below the circuit breaker body 1, a lifting base 3 is provided on one side of the circuit breaker body 1, and a top seat 4 and a base 5 are respectively provided on the upper and lower sides of the lifting base 3. The lifting base 3, the top seat 4 and the base 5 are all composed of two arc-shaped frames connected by bolts. Two connecting reinforcement components 6 are fixedly connected in a symmetrical structure on the lifting base 3. Anti-fall trigger components 7 are rotatably connected on both sides of the lifting base 3. Lifting components 8 are fixedly connected in a symmetrical structure on both sides of the base 5.

[0021] like Figure 3 As shown, one end of the mounting bracket 2 is fixedly connected to the lifting base 3, and a support frame 201 is fixedly connected to the bottom of the mounting bracket 2. The support frame 201 improves the load-bearing strength of the mounting bracket 2.

[0022] Support frame 201 adopts a triangular frame structure and is made of the same material as mounting frame 2, which is galvanized steel plate with an anti-corrosion coating on the surface, which can resist outdoor wind and rain erosion and extend service life.

[0023] like Figure 4As shown, the inner wall of the hoisting base 3 has an arc-shaped structure with two sets of contact wheels 301 rotatably connected. The inner wall of the hoisting base 3 has an arc-shaped structure with multiple anti-fall friction blocks 302 slidably connected. Multiple springs 303 are fixedly connected to the inner wall of the anti-fall friction blocks 302. The other end of the springs 303 is fixedly connected to the inner wall of the hoisting base 3. A contact rod 304 is fixedly connected to the inner wall of the anti-fall friction blocks 302. The contact rod 304 is slidably connected through the inner wall of the hoisting base 3.

[0024] Two sets of contact wheels 301 are symmetrically distributed on the inner wall of the hoisting base 3. They are made of wear-resistant rubber with anti-slip textures on the surface. The contact wheels 301 are rotatably connected to the inner wall of the hoisting base 3 via a rotating shaft, allowing for smooth rotation. They can roll into contact with the surface of the utility pole during the hoisting base 3's lifting and lowering process, reducing the friction between the hoisting base 3 and the utility pole, enabling the hoisting base 3 to lift and lower smoothly, while preventing the surface of the utility pole from being scratched and damaged. Multiple anti-fall friction blocks 302 are evenly distributed on the inner wall of the hoisting base 3, made of high-friction rubber. The spring 303 is a high-elasticity, fatigue-resistant spring. When in its natural extension state, it can push the anti-fall friction blocks 302 tightly against the utility pole. When the anti-fall trigger component 7 is triggered, the spring 303 can quickly push the anti-fall friction blocks 302 to fit tightly against the utility pole, generating greater friction.

[0025] like Figure 5 As shown, the top seat 4 has two symmetrical insertion holes 401 on both sides of its bottom end. Each insertion hole 401 has a slidingly fitted locking block 402 on its inner wall. A spring 403 is fixedly connected between the inner end of the locking block 402 and the inner wall of the insertion hole 401. Each side of the top seat 4 has a connecting groove 404, and a threaded rod 405 is rotatably connected through the side wall of the connecting groove 404. Fixed pulleys 406 are installed on both sides of the top seat 4. The threaded rod 405 is used for the detachable connection of the connecting block 804 at the other end of the steel cable 803.

[0026] Spring 403 is a compression spring. Under normal conditions, it pushes the outer end of the locking block 402 out of the inner wall of the insertion hole 401. When the reinforcing rod 601 is inserted, the locking block 402 can be embedded in the locking ring groove 602 of the reinforcing rod 601 under the elastic force of spring 403, so as to achieve quick locking and fixing.

[0027] like Figure 6As shown, the connecting reinforcement assembly 6 includes a reinforcing rod 601 with a tapered top. The outer wall of the reinforcing rod 601 is movably inserted into the inner wall of the insertion hole 401. A snap-fit ​​ring groove 602 is formed on the reinforcing rod 601, and the inner wall of the snap-fit ​​ring groove 602 is movably inserted into the outer end of the snap-fit ​​block 402. A tapered ring 603 is slidably fitted at the bottom end of the snap-fit ​​ring groove 602, and an electric push rod 604 is fixedly connected to the bottom end of the tapered ring 603. The electric push rod 604 is fixedly connected to the inner wall of the reinforcing rod 601, and the outer wall of the tapered ring 603 is in slidable contact with the outer end of the snap-fit ​​block 402. The tapered ring 603 pushes the snap-fit ​​block 402 to retract, allowing the reinforcing rod 601 to be removed.

[0028] The reinforcing rod 601 is made of high-strength alloy material, which is hard and has a strong load-bearing capacity. The tapered structure design at the top can guide the reinforcing rod 601 to be quickly and accurately inserted into the insertion hole 401 of the top seat 4, avoiding deviation or jamming during insertion and improving installation efficiency.

[0029] like Figure 7 As shown, the fall arrestor trigger assembly 7 includes two U-shaped rods 701 arranged in a cross structure. The two U-shaped rods 701 are rotatably connected near their bottom ends by a pin. One end of the pin is rotatably connected to the hoisting base 3. A slotted frame 702 is slidably fitted between the bottom ends of the two U-shaped rods 701. The top ends of the U-shaped rods 701 are located above the movable pulley 305 and are restricted by both ends of the steel cable 803 that passes through the movable pulley 305.

[0030] The two U-shaped rods 701 are made of high-strength metal and are arranged in a cross shape to form a scissor-like structure. They are rotatably connected to the lifting base 3 through a pin. The rotation is smooth and can rotate flexibly around the pin. Under normal conditions, the steel cable 803 is in a tensioned state, which limits the top of the U-shaped rods 701 and keeps the two U-shaped rods 701 in a cross-tight state. At this time, the slotted frame 702 is in a low position and retracts the anti-fall friction block 302.

[0031] A guide rod 703 is slidably fitted through the middle of the slotting frame 702. The top end of the guide rod 703 is fixedly connected to the lifting base 3. An extrusion frame 704 is fixedly connected to the other end of the slotting frame 702. An inclined surface 705 is formed on one side of the bottom end of the extrusion frame 704, and the inclined surface 705 is in slidable contact with the outer end of the contact rod 304. The inclined surface 705 is used to push the anti-fall friction block 302 connected to the contact rod 304 to retract.

[0032] like Figure 8As shown, the hoisting assembly 8 includes a winding base 801, which is fixedly connected to the base 5. A reel 802 is rotatably connected to the inner wall of the winding base 801, and a steel cable 803 is wound around the outer wall of the reel 802. A movable pulley 305 is installed on the hoisting base 3. The other end of the steel cable 803 passes over the fixed pulley 406 and the movable pulley 305 respectively and is fixedly connected to a connecting block 804. A fixing hole 805 is provided on the connecting block 804. The outer wall of the connecting block 804 is movably inserted into the inner wall of the connecting groove 404. The inner wall of the fixing hole 805 is movably inserted into the outer wall of the threaded rod 405. The outer wall of the steel cable 803 is in sliding contact with the outer wall of the top end of the U-shaped rod 701.

[0033] A worm gear 806 is fixedly connected to one end of the reel 802. A worm sleeve 807 is meshed and driven below the worm gear 806. Both ends of the worm sleeve 807 are rotatably connected to the inner wall of the take-up seat 801. A handle 808 is movably inserted between the two worm sleeves 807. The handle 808 is detachable and made of high-strength metal, making it easy for operators to grip and apply force. After hoisting, the handle 808 can be removed to prevent damage from outdoor wind and collisions, and also to prevent accidental operation by unauthorized personnel, thus improving the safety of equipment operation.

[0034] By setting up the hoisting assembly 8 and the hoisting base 3, and by cooperating with the fixed pulley 406 on the top base 4 and the movable pulley 305 on the hoisting base 3, when winding the steel cable 803, the labor-saving pulley group composed of the fixed pulley 406 and the movable pulley 305 significantly reduces the lifting force. In mountainous areas and narrow road sections where cranes cannot enter, the circuit breaker can be lifted and installed by ground manpower alone, improving the equipment's adaptability to complex installation environments. A single person can complete the equipment lifting, greatly reducing the labor intensity of manual handling and high-altitude lifting, shortening the installation time, and improving construction efficiency.

[0035] Working principle: First, the lifting base 3, top base 4, and base 5 are assembled from two arc-shaped frames using high-strength bolts. The tightness of the assembly is adjusted according to the specifications of the utility pole to ensure that the arc-shaped inner walls of each component fit tightly against the surface of the utility pole. The top base 4 and base 5 are then fixed at the designated height positions on the utility pole, and the arc-shaped frames are tightened with bolts to ensure that the top base 4 and base 5 are firmly fixed and do not wobble. At the same time, the circuit breaker body 1 is fixedly connected to the lifting base 3 via the mounting bracket 2.

[0036] Take out the throttle 808 and insert it into the two worm gear sleeves 807. Turn the throttle 808 to drive the worm gear sleeves 807 to rotate. The worm gear sleeves 807 engage and drive the worm wheel 806 to rotate, which in turn drives the reel 802 to rotate, releasing the steel cable 803. The other end of the steel cable 803 is successively passed around the fixed pulleys 406 on both sides of the top seat 4 and the movable pulleys 305 on the hoisting seat 3. The connecting block 804 at the end of the steel cable 803 is inserted into the connecting groove 404 of the top seat 4. The threaded rod 405 is rotated so that the threaded rod 405 passes through the fixing hole 805 of the connecting block 804, thus achieving a firm fixation between the connecting block 804 and the top seat 4. At this time, the fixed pulleys 406 and the movable pulleys 305 form a force-saving pulley group, and the steel cable 803 is in a preliminary tensioned state. At the same time, the steel cable 803 slides into contact with the top of the U-shaped rod 701 of the anti-fall trigger component 7, forming a limit on the U-shaped rod 701, keeping the U-shaped rod 701 in a cross-tightened state. The slotted frame 702 is in a low position, and the inclined surface 705 of the extrusion frame 704 extrudes the contact rod 304, causing the anti-fall friction block 302 to compress the spring 303 and separate from the utility pole, ensuring that the hoisting seat 3 can be raised and lowered normally.

[0037] Then, the operator holds the throttle 808 on the ground and slowly rotates it, causing the worm gear sleeve 807, worm wheel 806, and reel 802 to rotate synchronously. The reel 802 winds up the steel cable 803. Under the action of the pulley block composed of the fixed pulley 406 and the movable pulley 305, the lifting base 3 slowly raises the circuit breaker body 1. During the hoisting process, the contact wheel 301 on the inner wall of the lifting base 3 rolls against the surface of the utility pole, reducing friction and allowing the lifting base 3 to rise and fall smoothly. The operator can precisely control the hoisting height by adjusting the rotation speed of the throttle 808, preventing the circuit breaker body 1 from colliding with the utility pole.

[0038] When the hoisting base 3 is raised and lowered to the designated installation position, the connecting reinforcement component 6 on the hoisting base 3 is precisely aligned with the insertion hole 401 of the top seat 4. The tapered structure at the top of the reinforcing rod 601 guides it to automatically insert into the insertion hole 401. During the insertion process, the reinforcing rod 601 squeezes the locking block 402, causing the locking block 402 to compress the second spring 403 and retract. When the reinforcing rod 601 is inserted to the designated depth, the locking block 402 automatically embeds into the locking ring groove 602 of the reinforcing rod 601 under the elastic force of the second spring 403, realizing the secondary positioning and reinforcement of the hoisting base 3 and the top seat 4. At this time, the weight of the circuit breaker body 1 is jointly borne by the hoisting base 3, the top seat 4 and the steel cable 803, reducing local stress concentration and completing the installation and fixation of the circuit breaker. Finally, the handle 808 is removed to avoid accidental operation by non-staff members.

[0039] During the circuit breaker installation process, the steel cable 803 remains taut, and the anti-fall trigger component 7 is always in standby mode. If the steel cable 803 breaks unexpectedly, the limit of the steel cable 803 on the U-shaped rod 701 is released, the two U-shaped rods 701 rotate around the pin shaft, the slotted frame 702 slides upward along the guide rod 703, the inclined surface 705 of the extrusion frame 704 separates from the contact rod 304, the spring 303 returns to its natural extension state, pushes the anti-fall friction block 302 to press against the utility pole, generates a large friction force, slows down the descent speed of the hoisting seat 3, prevents the equipment from falling, and ensures the safety of the equipment and personnel. When the circuit breaker needs to be inspected and maintained later, start the electric push rod 604 of the connecting reinforcement component 6. The electric push rod 604 extends and drives the conical ring 603 to slide upward, squeezing the locking block 402 to retract, releasing the limit on the reinforcement rod 601. Insert the throttle 808 into the worm gear sleeve 807, rotate the throttle 808 in the opposite direction, release the steel cable 803, and slowly lower the hoisting base 3 and the circuit breaker body 1 to the ground for inspection and maintenance. After the inspection and maintenance is completed, repeat the above hoisting process to reinstall.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker that is easy to install, comprising a circuit breaker body (1), characterized in that: Two mounting brackets (2) are fixedly installed below the circuit breaker body (1). A lifting base (3) is provided on one side of the circuit breaker body (1). A top seat (4) and a base (5) are respectively provided on the upper and lower sides of the lifting base (3). The lifting base (3), the top seat (4) and the base (5) are all composed of two arc-shaped frames connected by bolts. Two connecting reinforcement components (6) are fixedly connected in a symmetrical structure on the lifting base (3). Anti-fall trigger components (7) are rotatably connected on both sides of the lifting base (3). Lifting components are fixedly connected in a symmetrical structure on both sides of the base (5). (8) The inner wall of the hoisting seat (3) is rotatably connected with two sets of contact wheels (301) in an arc-shaped structure. The inner wall of the hoisting seat (3) is slidably connected with multiple anti-fall friction blocks (302) in an arc-shaped structure. Multiple springs (303) are fixedly connected to the inner wall of the anti-fall friction blocks (302). The other end of the springs (303) is fixedly connected to the inner wall of the hoisting seat (3). A contact rod (304) is fixedly connected to the inner wall of the anti-fall friction blocks (302). The contact rod (304) is slidably connected to the inner wall of the hoisting seat (3). The bottom ends of the top seat (4) on both sides Each component has two symmetrical insertion holes (401). A locking block (402) is slidably fitted onto the inner wall of each insertion hole (401). A spring (403) is fixedly connected between the inner end of the locking block (402) and the inner wall of the insertion hole (401). A connecting groove (404) is provided on both sides of the top seat (4). A threaded rod (405) is rotatably connected through the side wall of the connecting groove (404). Fixed pulleys (406) are installed on both sides of the top seat (4). The connecting reinforcement assembly (6) includes a reinforcing rod (601), the top of which is tapered. The structure is configured such that the outer wall of the reinforcing rod (601) is movably inserted into the inner wall of the insertion hole (401), the reinforcing rod (601) is provided with a snap ring groove (602), the inner wall of the snap ring groove (602) is movably inserted into the outer end of the snap block (402), a conical ring (603) is slidably fitted at the bottom end of the snap ring groove (602), an electric push rod (604) is fixedly connected to the bottom end of the conical ring (603), the electric push rod (604) is fixedly connected to the inner wall of the reinforcing rod (601), and the outer wall of the conical ring (603) is slidably in contact with the outer end of the snap block (402).

2. The easy-to-install primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: One end of the mounting bracket (2) is fixedly connected to the lifting base (3), and a support frame (201) is fixedly connected to the bottom of the mounting bracket (2).

3. The easy-to-install primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The fall arrestor triggering component (7) includes two U-shaped rods (701) arranged in a cross structure. The two U-shaped rods (701) are rotatably connected near the bottom by a pin. One end of the pin is rotatably connected to the hoisting seat (3). A slotted frame (702) is slidably fitted between the bottom ends of the two U-shaped rods (701).

4. The easy-to-install primary and secondary integrated pole-mounted circuit breaker according to claim 3, characterized in that: A guide rod (703) is slidably fitted through the middle of the slotting frame (702). The top end of the guide rod (703) is fixedly connected to the hoisting seat (3). An extrusion frame (704) is fixedly connected to the other end of the slotting frame (702). An inclined surface (705) is opened on one side of the bottom end of the extrusion frame (704). The inclined surface (705) is slidably contacted with the outer end of the contact rod (304).

5. A primary and secondary integrated pole-mounted circuit breaker that is easy to install according to claim 4, characterized in that: The hoisting assembly (8) includes a take-up seat (801), which is fixedly connected to the base (5). A reel (802) is rotatably connected to the inner wall of the take-up seat (801). A steel cable (803) is wound around the outer wall of the reel (802). A movable pulley (305) is installed on the hoisting base (3). The other end of the steel cable (803) passes over the fixed pulley (406) and the movable pulley (305) respectively and is fixedly connected to a connecting block (804). A fixing hole (805) is opened on the connecting block (804). The outer wall of the connecting block (804) is movably inserted into the inner wall of the connecting groove (404). The inner wall of the fixing hole (805) is movably inserted into the outer wall of the threaded rod (405). The outer wall of the steel cable (803) is slidably in contact with the outer wall of the top end of the U-shaped rod (701).

6. A primary and secondary integrated pole-mounted circuit breaker that is easy to install according to claim 5, characterized in that: A worm gear (806) is fixedly connected to one end of the reel (802), and a worm sleeve (807) is engaged and driven below the worm gear (806). Both ends of the worm sleeve (807) are rotatably connected to the inner wall of the take-up seat (801), and a throttle (808) is movably inserted between the two worm sleeves (807).

Images