A quick-fixed primary and secondary fusion complete on-pole circuit breaker

Abstract

The application relates to the technical field of circuit breakers, in particular to a fast fixed primary-secondary fusion integrated pole-mounted circuit breaker, which comprises a supporting shell, a plurality of groups of supporting insulating cylinders with the same interval are installed on the supporting shell, connecting plates are integrally formed on the two sides of the supporting shell, mounting holes are formed in the connecting plates, mounting pieces are slidably connected in the mounting holes and are used for being connected with a pole supporting frame, the mounting piece comprises a shell, a through hole is formed in the outer edge surface of the shell, a threaded rod is rotatably installed in the shell, limit mechanisms are equidistantly installed on the threaded rod, a damping pad is sleeved on the shell and blocks the through hole, preliminary positioning is realized through the sliding mounting piece, fine adjustment is realized through the rotation of the threaded rod, and fine adjustment and locking are realized in combination with the limit mechanisms. The cam set is lifted to embed the clamping block into the clamping groove seat, mechanical self-locking is formed, and stability and reliability can be maintained even in severe environments such as strong wind, earthquake or long-term vibration.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker technology, specifically to a fast-fixing, integrated primary and secondary pole-mounted circuit breaker. Background Technology

[0002] Circuit breakers are indispensable circuit components. In a circuit, they are current switching devices that can open and close abnormal circuits and are an important part of ensuring circuit safety. Electricity transmission is a complex process. In long-distance power transmission, circuit breakers are electrical appliances used in large quantities. Generally, a circuit breaker is installed at intervals. At present, ordinary circuit breakers do not integrate electronic control technology and must rely on the power distribution automation master station and communication. However, the integrated primary and secondary pole-mounted circuit breaker integrates industry-leading electronic components and can realize power distribution automation functions without relying on the power distribution automation master station and communication.

[0003] Traditional installation methods require the circuit breaker body to be rigidly fixed to the pole support with bolts, and the support holes must be strictly aligned with the equipment mounting holes. Due to factors such as the verticality deviation of the pole, the processing error of the support, or the limitation of hoisting positioning, it is often difficult to complete the accurate drilling in one go. Repeated adjustments or even disassembly and reinstallation are required, which not only significantly prolongs the construction period, but also increases the safety risks of working at height. Summary of the Invention

[0004] The purpose of this invention is to provide a fast-fixing, integrated primary and secondary pole-mounted circuit breaker to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fast-fixing, integrated primary and secondary pole-mounted circuit breaker includes a support housing. Multiple sets of equally spaced post-supported insulating cylinders are mounted on the support housing. Connecting plates are integrally formed on both sides of the support housing. Mounting holes are provided on the connecting plates, and mounting components are slidably connected within the mounting holes for connection to a pole-mounted support frame. Each mounting component includes a housing with a through hole on its outer edge. A threaded rod is rotatably mounted inside the housing, and limit mechanisms are equidistantly mounted on the threaded rod. The circuit breaker also includes a shock-absorbing pad, which is fitted onto the housing and seals the through hole.

[0007] Preferably, the limiting mechanism includes a ring sleeve threaded onto a threaded rod and a limiting sleeve fixedly installed in a through hole. A limiting pin is coaxially installed inside the limiting sleeve. A first connecting seat is fixedly installed on the outer edge of the ring sleeve. A push rod is rotatably installed inside the first connecting seat. The push rod is rotatably connected to the limiting pin.

[0008] Preferably, the limiting pin includes a screw and a connecting plate, the screw and the connecting plate are rotatably connected, a second connecting seat is fixedly installed on the connecting plate, the second connecting seat is rotatably connected to the push rod, a sliding pin is installed in the limiting sleeve through an elastic element, a spiral groove is opened on the outer edge surface of the screw, and the sliding pin is embedded in the spiral groove.

[0009] Preferably, a force-bearing plate is fixedly installed at one end of the threaded rod, a first rib is fixedly installed on the side of the force-bearing plate near the opening end of the outer shell, a force-bearing block is provided inside the outer shell, and a second rib is fixedly installed on the side of the force-bearing block near the force-bearing plate.

[0010] Preferably, the force-bearing block includes two interlocking cams, and a slot is formed on the plane of the upper cam.

[0011] Preferably, two symmetrically arranged card slots are fixedly installed on the inner wall of the opening end of the outer shell, and a card block is fixedly installed on the outer edge surface of the upper cam, the card block being collinear with the slot.

[0012] Preferably, a connecting rod is slidably installed inside the threaded rod. One end of the connecting rod passes through the force-bearing plate and connects to the cam below. The other end of the connecting rod passes through the threaded rod and is fixedly installed on a chassis. A central shaft is fixedly installed on the end of the chassis opposite to the connecting rod. A slot is formed on the central shaft. A pin is fixedly installed on the chassis. A central hole and a slot are correspondingly formed on the bottom of the outer casing.

[0013] Preferably, both the opening end face of the housing and the surface of the cam above are coated with a fluorescent coating.

[0014] Preferably, a top plate is fixedly installed on the connecting rod, an airbag is fixedly installed inside the threaded rod, the airbag is filled with glue, a delivery pipe is rotatably connected between the airbag and the connecting plate, the screw has a hollow structure inside, and an overflow hole is opened on the outer edge of the screw.

[0015] Preferably, a limiting ring is fixedly installed on the inner wall of the threaded rod above the airbag, and a spring is sleeved on the connecting rod, with the two ends of the spring being fixed to the limiting ring and the top plate, respectively.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Initial positioning is achieved through a sliding mounting component, followed by fine-tuning using the rotation of a threaded rod and a limiting mechanism for locking. Finally, the lifting action of the cam assembly embeds the locking block into the slot, forming a mechanical self-locking mechanism. In addition, an air-filled adhesive system is incorporated, allowing the screw to fill with adhesive after puncturing the shock-absorbing pad, further enhancing the connection strength. Even in harsh environments such as strong winds, earthquakes, or prolonged vibrations, it remains stable and reliable, greatly reducing the risk of equipment failure due to loosening.

[0018] 2. The opening face of the outer casing and the surface of the upper cam are coated with a fluorescent coating, which facilitates quick identification of the adjustment port position under low light conditions. In addition, when the card block is correctly inserted into the card slot, the fluorescent coating shows a smooth surface without any dents, providing intuitive status feedback. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the supporting shell and mounting components of the present invention;

[0021] Figure 3 This is a schematic diagram of the mounting component structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the mounting component of the present invention;

[0023] Figure 5 for Figure 4 Second perspective;

[0024] Figure 6 This is a schematic diagram of the limiting pin structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the force-bearing block structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the internal structure of the threaded rod of the present invention.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Support shell; 2. Support column insulating cylinder;

[0029] 3. Connecting plate; 31. Mounting holes;

[0030] 4. Mounting components; 41. Housing; 411. Through hole; 412. Slot seat; 413. Center hole; 414. Slot; 42. Threaded rod; 421. Force plate; 422. First rib; 423. Limiting ring; 43. Limiting mechanism; 431. Ring sleeve; 432. Limiting sleeve; 433. Limiting pin; 4331. Screw; 4332. Connecting plate; 4333. Second connecting seat; 4334. Thread 4335, conveying pipe; 4336, overflow hole; 434, first connecting seat; 435, push rod; 436, sliding pin; 44, force-bearing block; 441, cam; 442, slot one; 443, second rib; 444, locking block; 45, connecting rod; 451, top plate; 452, spring; 46, chassis; 461, central shaft; 462, slot two; 463, pin; 47, airbag;

[0031] 5. Shock-absorbing pads. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example: Refer to Figure 1 - Figure 8 The diagram shows a fast-fixing integrated primary and secondary pole-mounted circuit breaker, including a support housing 1 for carrying internal primary components and secondary intelligent components. Multiple sets of equally spaced post insulating cylinders 2 are installed on the support housing 1 to support and insulate the incoming and outgoing conductive rods, ensuring insulation of the high-voltage live parts to ground and between phases. Connecting plates 3 are integrally formed on both sides of the support housing 1. Mounting holes 31 are opened on the connecting plates 3. Mounting components 4 are slidably connected in the mounting holes 31 for connecting with the pole-mounted support frame. Mounting components 4 include a housing 41 with a through hole 411 on the outer edge surface. A threaded rod 42 is rotatably installed inside the housing 41. Limiting mechanisms 43 are installed at equal intervals on the threaded rod 42. It also includes a shock-absorbing pad 5, which is sleeved on the housing 41 and seals the through hole 411.

[0034] Traditional pole-mounted circuit breakers require precise alignment with the bracket holes before bolts can be inserted. However, this structure uses a sliding mounting component 4 to achieve rough installation followed by fine adjustment. First, the circuit breaker is hoisted to the vicinity of the pole bracket, allowing the mounting component 4 to be initially inserted into the bracket hole. By rotating the threaded rod 42, the limiting mechanism 43 is moved axially, thereby fine-tuning the position of the outer shell 41 within the mounting hole 31 to achieve precise alignment. After adjustment, the limiting mechanism 43 is locked, fixing the mounting component 4 and the connecting plate 3 together. The shock-absorbing pad 5 uses elastic materials such as rubber or silicone, which not only buffers vibration and impact but also prevents rainwater and dust from entering the mounting hole 31 by sealing the through hole 411, thus avoiding corrosion or jamming of metal parts.

[0035] Reference Figure 3 - Figure 6 The limiting mechanism 43 includes a ring 431 threadedly installed on the threaded rod 42 and a limiting sleeve 432 fixedly installed in the through hole 411. A limiting pin 433 is coaxially installed in the limiting sleeve 432. A first connecting seat 434 is fixedly installed on the outer edge of the ring 431. A push rod 435 is rotatably installed in the first connecting seat 434. The push rod 435 is rotatably connected to the limiting pin 433.

[0036] Furthermore, the limiting pin 433 includes a screw 4331 and a connecting plate 4332, which are rotatably connected. A second connecting seat 4333 is fixedly installed on the connecting plate 4332. The second connecting seat 4333 is rotatably connected to the push rod 435. A sliding pin 436 is installed in the limiting sleeve 432 through an elastic element. A spiral groove 4334 is opened on the outer edge surface of the screw 4331, and the sliding pin 436 is embedded in the spiral groove 4334.

[0037] During fine-tuning, the worker uses a tool to rotate the threaded rod 42. Since the ring 431 and the threaded rod 42 are threadedly engaged, the ring 431 moves axially along the threaded rod 42, achieving fine-tuning and positioning of the mounting part 4 relative to the connecting plate 3. When the ring 431 moves, it drives the first connecting seat 434 on its outer edge to move synchronously. The first connecting seat 434 drives the push rod 435 to swing through the rotating pair. The other end of the push rod 435 pushes the second connecting seat 4333, causing the connecting plate 4332 and the screw 4331 to move radially as a whole. The screw 4331 moves radially through the spiral on its outer circle. The groove 4334 engages with the sliding pin 436 inside the limiting sleeve 432. When the push rod 435 applies torque, the sliding pin 436 slides along the spiral groove 4334, forcing the screw 4331 to rotate around its own axis. This causes the tip of the screw 4331 to continue to screw in after contacting the damping pad 5, just like a self-tapping screw 4331. As the screw 4331 rotates and advances, its tip penetrates the damping pad 5 made of elastic material, forming a connection method of partial perforation and frictional engagement. This increases the frictional resistance and shear resistance between the contact surfaces, preventing the mounting part 4 from loosening or shifting due to vibration during operation.

[0038] Reference Figure 4 - Figure 5 A force-bearing plate 421 is fixedly installed at one end of the threaded rod 42. A first rib 422 is fixedly installed on the side of the force-bearing plate 421 near the opening end of the outer shell 41, so that the force-bearing plate 421 serves as a bearing surface for torque input. A force-bearing block 44 is provided inside the outer shell 41. A second rib 443 is fixedly installed on the side of the force-bearing block 44 near the force-bearing plate 421, which transmits rotational force through meshing.

[0039] Furthermore, the force-bearing block 44 includes two interlocking cams 441, forming a linkage unit that can rotate relative to each other but has a specific motion trajectory. A slot 442 is provided on the plane of the upper cam 441 to facilitate the application of rotational torque using tools such as screwdrivers.

[0040] The installer inserts a flathead screwdriver into slot 442 and rotates the upper cam 441. Since the two cams 441 are interlocked, the rotational motion is transmitted to the entire force block 44. The second rib 443 on the force block 44 pushes / drives the first rib 422 on the force plate 421, thereby driving the threaded rod 42 to rotate. After the threaded rod 42 rotates, it drives the ring 431 on it to move axially, which in turn triggers the action of the limit pin 433 through the push rod 435.

[0041] Two symmetrically arranged card slots 412 are fixedly installed on the inner wall of the opening end of the outer casing 41, and a card block 444 is fixedly installed on the outer edge surface of the upper cam 441. The card block 444 is collinear with the slot 442.

[0042] Furthermore, a connecting rod 45 is slidably installed inside the threaded rod 42. One end of the connecting rod 45 passes through the force plate 421 and connects with the lower cam 441. The other end of the connecting rod 45 passes through the threaded rod 42 and is fixedly installed with a base 46. A central shaft 461 is fixedly installed on the end of the base 46 away from the connecting rod 45. A slot 462 is opened on the central shaft 461. A pin 463 is fixedly installed on the base 46. A central hole 413 and a slot 414 are correspondingly opened on the bottom of the outer casing 41.

[0043] Furthermore, both the open end face of the housing 41 and the surface of the upper cam 441 are coated with a fluorescent coating.

[0044] After the top operating threaded rod 42 is rotated into place, the central shaft 461 is pushed from the bottom, causing the lower cam 441 to tend to rise upwards, disengaging from the contact between the first rib 422 and the second rib 443. The connecting rod 45 is rotated, causing the lower cam 441 to rotate and lift the upper cam 441. The locking block 444 of the upper cam 441 is inserted into the slot seat 412 at the opening end of the outer shell 41. The circumferential freedom of the upper cam 441 is completely restricted, and the entire force block 44 and threaded rod 42 are locked in the opposite direction. Even if external vibration causes the threaded pair to loosen, the slot seat 412 will prevent the locking block 444 from rotating, achieving passive self-locking. The surface of the upper cam 441 is basically flush with the opening end of the outer shell 41. The fluorescent coating becomes a visual indicator of the locked state. By observing that the fluorescent surface is flat and without depressions, it can be determined that the locking block 444 has been correctly inserted without additional inspection.

[0045] It should be noted that the bottom of the outer shell 41 is a movable connection structure, which can rotate freely relative to the main body of the outer shell 41.

[0046] Reference Figure 8 A top plate 451 is fixedly installed on the connecting rod 45. An air bladder 47 is fixedly installed inside the threaded rod 42. The air bladder 47 is filled with glue. A delivery pipe 4335 is rotatably connected between the air bladder 47 and the connecting plate 4332. The screw 4331 has a hollow structure inside. An overflow hole 4336 is opened on the outer edge of the screw 4331.

[0047] Furthermore, a limiting ring 423 is fixedly installed on the inner wall of the threaded rod 42 above the airbag 47, and a spring 452 is sleeved on the connecting rod 45. The two ends of the spring 452 are fixed to the limiting ring 423 and the top plate 451, respectively.

[0048] When the connecting rod 45 raises the lower cam 441, the top plate 451 compresses the air bladder 47. The pressure inside the air bladder 47 increases, forcing the glue to flow into the hollow screw 4331 through the delivery pipe 4335. The glue seeps out from the overflow hole 4336 on the outer edge of the screw 4331 and fills the space between the tip of the screw 4331 and the wall of the perforation of the shock-absorbing pad 5. After adjustment, if the connecting rod 45 is no longer continuously pressured, the spring 452 pushes the top plate 451 back down and applies a preload to the chassis 46 to ensure that the pin 463 is stably embedded in the slot 414, preventing the pin 463 from coming out due to loosening, and suppressing the axial movement of the connecting rod 45 during operation, thereby improving the overall rigidity.

[0049] Working principle: The circuit breaker is hoisted to the vicinity of the support frame on the pole. The mounting part 4 is initially inserted into the mounting hole 31 of the pole bracket. Precise fixation is not required. A flathead screwdriver is inserted into the slot 442 of the upper cam 441. The force block 44 is rotated. The second rib 443 drives the first rib 422 to rotate the threaded rod 42. The rotation of the threaded rod 42 causes the ring 431 to move axially and push the push rod 435, which drives the limit pin 433 to move. The screw 4331 in the limit pin 433 rotates under the action of the sliding pin 436 and the spiral groove 4334. The tip pierces the shock-absorbing pad 5 and embeds into the bracket hole wall, forming a mechanical anchor and completing the position fine adjustment.

[0050] After adjustment, switch to bottom operation. Insert a flathead screwdriver into the slot 462 on the central shaft 461 of the chassis 46 through the center hole 413 at the bottom of the outer casing 41, push it upward and rotate it. The upper cam 441 is axially pushed up, and the outer edge of the locking block 444 is embedded into the locking seat 412 on the inner wall of the outer casing 41. The circumferential degree of freedom is completely restricted, and the entire transmission chain is mechanically locked in reverse to achieve passive anti-loosening. The upper cam 441 is flush with the opening end of the outer casing 41 and has uniform fluorescence, indicating that the locking block 444 has been correctly embedded. It can be confirmed that locking, bonding and pre-tightening have been completed. At the same time, the top plate 451 moves upward with the connecting rod 45, compressing the air bladder 47. The pressure inside the air bladder 47 increases, and the glue flows into the hollow screw 4331 through the delivery pipe 4335. The glue seeps out from the overflow hole 4336 and fills the micro gap between the screw 4331 and the perforation of the shock-absorbing pad 5 to achieve chemical bonding enhancement.

[0051] 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.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fast-fixed primary and secondary fusion complete pole circuit breaker, comprising a support shell (1), a plurality of groups of equally spaced support insulating cylinders (2) are installed on the support shell (1), and a connecting plate (3) is integrally formed on both sides of the support shell (1), characterized in that: The connecting plate (3) is provided with a mounting hole (31), and the mounting hole (31) is slidably connected with a mounting piece (4) for connecting with the column support frame.

2. A primary and secondary fused package circuit breaker of quick fixing type as claimed in claim 1, wherein: The limiting mechanism (43) comprises a ring (431) threaded on the threaded rod (42) and a limiting sleeve (432) fixedly installed in the through hole (411), and the limiting sleeve (432) is coaxially installed with a limiting pin (433) therein.

3. A primary and secondary fused switch disconnector according to claim 2, characterized in that: The limiting pin (433) comprises a screw (4331) and a connecting plate (4332), and the screw (4331) and the connecting plate (4332) are rotatably connected.

4. A primary and secondary fused switch disconnector according to claim 3, characterized in that: The limiting pin (433) comprises a screw (4331) and a connecting plate (4332), and the screw (4331) and the connecting plate (4332) are rotatably connected.

5. A primary and secondary fused switch disconnector according to claim 4, characterized in that: One end of the threaded rod (42) is fixedly installed with a stress plate (421), one side of the stress plate (421) close to the opening end of the shell (41) is fixedly installed with a first rib (422), and the shell (41) is provided with a stress block (44).

6. A primary and secondary fused switch disconnector according to claim 5, characterized in that: The stress block (44) comprises two interlocked cams (441), and a one-way slot (442) is formed in the plane of the upper cam (441).

7. A primary and secondary fused switch disconnector according to claim 5, characterized in that: The inner wall of the opening end of the shell (41) is fixedly installed with two symmetrically arranged clamping groove seats (412), and the outer edge surface of the upper cam (441) is fixedly installed with a clamping block (444). The threaded rod (42) is slidably installed with a connecting rod (45), one end of the connecting rod (45) penetrates out of the stress plate (421) and is connected with the lower cam (441), and the other end of the connecting rod (45) penetrates out of the threaded rod (42) and is fixedly installed with a bottom disc (46). The threaded rod (42) is slidably installed with a connecting rod (45), one end of the connecting rod (45) penetrates out of the stress plate (421) and is connected with the lower cam (441), and the other end of the connecting rod (45) penetrates out of the threaded rod (42) and is fixedly installed with a bottom disc (46).

8. A primary and secondary fused switch disconnector according to claim 5, characterized in that: The opening end face of the shell (41) and the surface of the cam (441) are coated with a fluorescent coating.

9. A primary and secondary fused switch disconnector according to claim 7, characterized in that: A top plate (451) is fixedly installed on the connecting rod (45), a gas bag (47) is fixedly installed in the threaded rod (42), the gas bag (47) is filled with glue, a conveying pipe (4335) is rotatably connected between the gas bag (47) and the connecting plate (4332), the screw (4331) is a hollow structure, and overflow holes (4336) are formed in the outer edge surface of the screw (4331).

10. A primary and secondary fused switch disconnector according to claim 9, characterized in that: A limiting ring (423) is fixedly installed on the inner wall of the threaded rod (42) above the gas bag (47), a spring (452) is sleeved on the connecting rod (45), and the two ends of the spring (452) are fixedly connected with the limiting ring (423) and the top plate (451).

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