Anti-seismic primary and secondary fusion pole-mounted circuit breaker

Abstract

The invention relates to the field of circuit breakers, in particular to an anti-seismic primary and secondary fusion pole-mounted circuit breaker which comprises a body and a damping device, the damping device comprises a buffer cover, a fixing assembly and a plurality of fixing bolts, and the surface of the body is provided with a plurality of threaded holes for the fixing bolts to penetrate through at intervals. The ends of the fixing bolts can penetrate through the threaded holes and are fixed to the ground in a threaded screwing mode to form limiting, the fixing assembly is connected between the buffer cover and the body and limits the buffer cover to the body, and an inner cavity of the buffer cover shields the body. According to the embodiment of the invention, the buffer cover, the fixing assembly and the fixing bolt are arranged, and the inner cavity of the buffer cover shields the body, so that the buffer cover is used for resisting the impact of animals, the body is prevented from being directly impacted by the animals, the anti-seismic performance of the body is improved, and the normal use of the primary and secondary fusion pole-mounted circuit breaker is ensured; and the maintenance frequency of the primary and secondary fusion pole-mounted circuit breaker is reduced, so that the use cost of the primary and secondary fusion pole-mounted circuit breaker is reduced.

Description

Technical Field

[0001] The present application relates to the field of circuit breakers, and in particular to a seismic-resistant primary and secondary fused pole-mounted circuit breaker. Background Art

[0002] The primary-secondary integrated pole-mounted circuit breaker is an intelligent circuit breaker that integrates the functions of primary and secondary equipment. It is widely used in distribution networks. It combines the functions of traditional circuit breakers and smart terminals, and can realize functions such as remote monitoring, fault detection and automatic isolation, thereby improving the automation level and reliability of the distribution network.

[0003] Existing primary and secondary fusion pole-mounted circuit breakers are usually installed in outdoor environments, which makes them vulnerable to damage by animals, affecting the normal use of the primary and secondary fusion pole-mounted circuit breakers, increasing the number of maintenance times for the primary and secondary fusion pole-mounted circuit breakers, and thus increasing the cost of using the primary and secondary fusion pole-mounted circuit breakers. Summary of the Invention

[0004] In order to improve the cost problem of using a primary and secondary fused pole mounted circuit breaker, the present application provides a seismic resistant primary and secondary fused pole mounted circuit breaker.

[0005] This application provides a seismic-resistant primary and secondary integrated pole-mounted circuit breaker, which adopts the following technical solutions: A seismic-resistant primary-secondary fusion column-mounted circuit breaker includes a body and a shock-absorbing device. The shock-absorbing device includes a buffer cover, a fixing assembly, and a plurality of fixing bolts. A plurality of threaded holes for the fixing bolts to pass through are provided at intervals on the surface of the body. The ends of the fixing bolts can pass through the threaded holes and be screwed and fixed to the ground to form a limit. The fixing assembly is connected between the buffer cover and the body. The fixing assembly limits the buffer cover on the body, and the inner cavity of the buffer cover shields the body.

[0006] By adopting the above technical solution, when installing the primary and secondary fusion pole-mounted circuit breaker, the body is moved to the installation station, the fixing bolts correspond to the threaded holes one by one, the ends of the fixing bolts are passed through the threaded holes and tightened to fix them on the ground, so as to fix the body at the installation station, ensure that the primary and secondary fusion pole-mounted circuit breaker is not easily displaced by animal impact, and achieve the firm installation of the primary and secondary fusion pole-mounted circuit breaker; at the same time, the fixing component limits the buffer cover on the body, and the inner cavity of the buffer cover shields the body, so that the buffer cover is used to resist animal impact, avoids the body from being directly impacted by animals, improves the seismic performance of the body, ensures the normal use of the primary and secondary fusion pole-mounted circuit breaker, reduces the number of maintenance times of the primary and secondary fusion pole-mounted circuit breaker, and thus reduces the use cost of the primary and secondary fusion pole-mounted circuit breaker.

[0007] Optionally, a fixing cavity is provided on the surface of the main body for the end of the buffer cover to be embedded, and the fixing assembly includes a fixing plate and a fixing block. A slide is provided on the surface of the main body for the fixing plate to slide, and the slide connects the fixing cavity and one of the threaded holes. The fixing block is connected to the end face of the fixing plate facing the inner cavity of the buffer cover, and the inner cavity wall of the buffer cover is provided with a groove for the fixing block to be embedded, and the surface of the fixing plate is provided with a positioning hole for the fixing bolt to pass through. When the fixing plate slides in a direction away from the main body, the positioning hole is connected to one of the threaded holes, the fixing block is embedded in the groove, and the outer wall of the fixing block is pressed against the inner wall of the groove to form a limit.

[0008] By adopting the above technical solution, when the end of the buffer cover is embedded in the fixed cavity, the surface of the buffer cover mouth presses against the inner wall of the fixed cavity to form a limit, thereby realizing the initial fixation of the buffer cover on the main body. At the same time, the end of the fixed block faces the embedding groove, driving the fixed plate to slide along the inner wall of the slide in the direction away from the main body. The fixed block is embedded in the embedding groove, and the outer peripheral surface of the fixed block presses against the inner wall of the embedding groove to form a limit, so that the end of the buffer cover is not easy to separate from the fixed cavity, thereby further improving the limiting stability of the buffer cover on the main body; at the same time, the positioning hole is connected to one of the threaded holes, and the end of the fixing bolt passes through the positioning hole and the threaded hole in turn and is screwed and fixed to the ground to form a limit, so that the fixing plate is not easy to deviate on the inner wall of the slide, thereby further improving the tightening force between the embedding block and the inner wall of the embedding groove.

[0009] Optionally, the fixing assembly further includes an elastic member 1, one end of the elastic member 1 in the elastic direction is connected to the inner wall of the slide, and the other end of the elastic member 1 in the elastic direction is connected to the surface of the fixing plate. The elastic member 1 has elastic force to drive the fixing plate to slide toward the direction close to the main body, the connection effect between the positioning hole and the threaded hole disappears, and the embedment tends to break away from the embedding groove.

[0010] By adopting the above technical solution, when the fixing bolt is unscrewed, the limiting effect of the fixing bolt on the fixing plate disappears, and the elastic force of the elastic member drives the fixing plate to slide along the inner wall of the slide toward the main body, and the connection effect between the positioning hole and the threaded hole disappears. At the same time, the embedded block is driven out of the embedded groove, so that the limiting effect of the embedded block on the buffer cover disappears, thereby making it convenient for the user to directly pull out the bottom of the buffer cover from the fixed cavity, thereby improving the user's convenience in using the primary and secondary fusion column-mounted circuit breaker.

[0011] Optionally, the shock absorbing device further includes a plurality of buffer airbags, which are connected to the outer peripheral surface of the buffer cover at intervals.

[0012] By adopting the above technical solution, multiple cushioning airbags are connected at intervals on the outer peripheral surface of the cushioning cover. The cushioning airbags convert the kinetic energy of the animal into deformation potential energy of the cushioning airbags, making the cushioning cover less likely to be deformed by impact, thereby improving the shock resistance of the cushioning cover and extending the service life of the cushioning cover.

[0013] Optionally, a vent hole is provided on the top surface of the buffer cover, and one of the buffer airbag inner cavities is connected to the embedding groove and the vent hole. The buffer airbag is connected to a storage component, and the storage component includes a storage plate. The storage plate is slidably connected to the inner cavity wall of the buffer airbag. When the fixed block is embedded in the embedding groove, the end face of the fixed block abuts against the surface of the receiving plate and drives the receiving plate away from the main body. The surface of the storage plate squeezes the inner wall of the buffer airbag to open.

[0014] By adopting the above technical solution, when the buffer cover is transported or stored, the staff drives the storage plate close to the main body, causing the air in the buffer airbag to be discharged from the vent hole, reducing the footprint of the buffer cover, thereby improving the convenience of transporting or storing the buffer cover; when the end of the buffer cover is embedded in the fixed cavity, the fixed block is embedded in the embedded groove, the end face of the fixed block abuts against the surface of the receiving plate, and drives the storage plate away from the main body, the surface of the storage plate squeezes the inner wall of the buffer airbag to open, and the outside air enters the inner cavity of the buffer airbag through the vent hole, realizing automatic inflation of the inner cavity of the buffer airbag, without the user using an air pump to inflate the inner cavity of the buffer airbag, thereby further improving the user's convenience in using the primary and secondary fusion column-mounted circuit breaker.

[0015] Optionally, the storage assembly further includes an elastic member 2, one end of the elastic member 2 in the elastic direction is connected to the inner wall of the buffer airbag, and the other end of the elastic member 2 in the elastic direction is connected to the surface of the storage plate, and the elastic member 2 has a tendency to drive the storage plate to slide toward the direction close to the main body by elastic force.

[0016] By adopting the above technical solution, when the fixing block is disengaged from the embedding groove, the pressure effect of the fixing block on the storage plate disappears, and the elastic force of the second elastic member drives the storage plate to slide toward the main body, driving the air in the buffer airbag to be discharged through the vent, thereby realizing the automatic discharge of the air in the buffer airbag cavity. There is no need for the user to manually drive the air in the buffer airbag to be discharged, further improving the user's convenience in using the primary and secondary fusion column-mounted circuit breaker.

[0017] Optionally, a filter is connected to the inner wall of the vent hole, and the filter can filter impurities in the air, and the surface of the filter is flush with the surface of the buffer cover.

[0018] By adopting the above technical solution, the filter is used to filter impurities in the air, making it difficult for external impurities to enter the cushioning airbag cavity through the vent hole, thereby ensuring the cleanliness of the cushioning airbag cavity.

[0019] Optionally, a plurality of elastic blocks are connected to the inner wall of the embedding groove at intervals, and the plurality of elastic blocks are spliced ​​to form a circular plate and close the embedding groove. When the fixed block is embedded in the embedding groove, the surface of the fixed block and the inner wall of the embedding groove clamp both sides of the elastic block to form a limit.

[0020] By adopting the above technical solution, multiple elastic blocks are spliced ​​to form a circular plate and the embedding groove is closed, so that external impurities are not easily able to enter the inner cavity of the cushioning airbag through the embedding groove, thereby further ensuring the cleanliness of the cushioning airbag; when the fixed block is embedded in the embedding groove, the fixed block squeezes the surface of the elastic block and drives the elastic block to deform, and the surface of the fixed block and the inner wall of the embedding groove clamp the two sides of the elastic block to form a limit, further improving the clamping force between the fixed block and the inner wall of the embedding groove.

[0021] Optionally, a scraper is rotatably connected to the top surface of the buffer cover, and the scraping end of the scraper is pressed against the surface of the buffer cover and scrapes impurities on the surface of the filter screen.

[0022] By adopting the above technical solution, the scraper rotates on the top surface of the buffer cover, and the scraping end of the scraper presses against the surface of the buffer cover and scrapes away impurities on the surface of the filter, thereby achieving directional cleaning of impurities on the surface of the filter, making the filter less likely to be clogged by impurities, thereby ensuring the stability of the filter in cleaning impurities in the air.

[0023] Optionally, a transmission assembly is connected between the scraper and the storage plate, and the transmission assembly includes an elastic member three and a connecting rope, one end of the connecting rope is connected to the surface of the storage plate, and the other end of the connecting rope is wrapped around the scraper rotating shaft, one end of the elastic member three in the elastic force direction is connected to the surface of the buffer cover, and the other end of the elastic member three in the elastic force direction is connected to the scraper rotating shaft, the elastic member three has elastic force to drive the scraper to rotate, the connecting rope is wrapped around the outer peripheral surface of the scraper rotating shaft, and the connecting rope between the scraper and the storage plate tends to be in a taut state.

[0024] By adopting the above technical solution, when the end face of the fixed block abuts against the surface of the receiving plate and drives the receiving plate away from the main body, the connecting rope receives the power of the receiving plate and drives the scraper to rotate, and the scraping section end of the scraper abuts against the surface of the buffer cover and scrapes impurities on the surface of the filter screen. When the fixed block is out of the groove, the second elastic force of the elastic member drives the receiving plate close to the main body, and the tension of the receiving plate on the connecting rope disappears. The third elastic force of the elastic member drives the scraper to rotate in the opposite direction. The connecting rope is wrapped around the outer peripheral surface of the scraper rotating shaft, and the connecting rope between the scraper and the receiving plate is in a taut state. There is no need for an external power device to drive the scraper to rotate, which reduces energy loss and reflects the concept of energy saving.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The arrangement of the buffer cover, fixing assembly, and fixing bolts. The inner cavity of the buffer cover shields the main body, so that the buffer cover is used to resist the impact of animals, preventing the main body from being directly impacted by animals, improving the seismic resistance of the main body, ensuring the normal use of the primary and secondary fusion column mounted circuit breaker, reducing the number of maintenance times for the primary and secondary fusion column mounted circuit breaker, and thus reducing the cost of using the primary and secondary fusion column mounted circuit breaker; 2. The fixing plate and the fixing block are set up. The ends of the fixing bolts are sequentially passed through the positioning holes and threaded holes and screwed into the ground to form a limit. This prevents the fixing plate from deviating from the inner wall of the slideway, thereby further improving the tightening force between the embedded block and the inner wall of the embedded groove; 3. The setting of the elastic member 1 eliminates the limiting effect of the insert on the buffer cover, making it convenient for the user to directly pull out the bottom of the buffer cover from the fixed cavity, thereby improving the user's convenience in using the primary and secondary fusion column circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0027] Figure 2 It is an exploded view in the embodiment of the present application, mainly showing the main body.

[0028] Figure 3 It is a partial cross-sectional view in an embodiment of the present application, mainly showing the cushioning airbag.

[0029] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0030] Explanation of the accompanying drawings: 1. Main body; 11. Threaded hole; 12. Fixing cavity; 13. Slide; 2. Shock absorber; 21. Buffer cover; 211. Embedded groove; 212. Vent; 22. Fixing assembly; 221. Fixing plate; 2211. Positioning hole; 222. Fixing block; 223. Elastic part 1; 23. Buffer airbag; 24. Fixing bolt; 3. Filter; 4. Elastic block; 5. Storage assembly; 51. Storage plate; 52. Elastic part 2; 6. Scraper; 7. Transmission assembly; 71. Connecting rope; 72. Elastic part 3. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The embodiment of the present application discloses a seismic-resistant primary and secondary fusion column mounted circuit breaker. Figure 1 A seismic-resistant primary and secondary fusion column mounted circuit breaker includes a main body 1 and a shock-absorbing device 2. The bottom of the main body 1 contacts the ground to form a support. The shock-absorbing device 2 is installed on the main body 1. The shock-absorbing device 2 can prevent the main body 1 from being directly impacted by animals, thereby improving the seismic resistance of the main body 1, ensuring the normal use of the primary and secondary fusion column mounted circuit breaker, reducing the number of maintenance times of the primary and secondary fusion column mounted circuit breaker, and thus reducing the use cost of the primary and secondary fusion column mounted circuit breaker.

[0033] Reference Figure 2 and Figure 3The shock absorbing device 2 includes a buffer cover 21, a fixing assembly 22, a plurality of buffer air bags 23 and a plurality of fixing bolts 24. A plurality of threaded holes 11 for the fixing bolts 24 are spaced apart on the surface of the main body 1. The plurality of threaded holes 11 are divided into two groups. The two groups of threaded holes 11 are located at both ends of the length direction of the main body 1. The arrangement direction of the plurality of threaded holes 11 in the same group is parallel to the width direction of the main body 1. The axis of the threaded hole 11 and the height direction of the main body 1 are parallel to each other. The threaded hole 11 passes through the outer wall of the main body 1 along its own axis. The fixing bolts 24 correspond to the threaded holes 11 one by one. The end of the fixing bolt 24 passes through the threaded hole 11 and is screwed and fixed to the ground to form a limit, so as to fix the main body 1 at the installation station, so that the main body 1 is not easily offset when subjected to external impact, thereby achieving preliminary seismic resistance of the primary and secondary fusion column-mounted circuit breaker.

[0034] Reference Figure 2 and Figure 3 A fixed cavity 12 is provided on the surface of the main body 1 for the cover opening of the buffer cover 21 to be embedded. The inner wall of the fixed cavity 12 is pressed against the surface of the cover opening of the buffer cover 21 to form a limit, thereby realizing the initial limit of the buffer cover 21 on the main body 1; at the same time, the inner cavity of the buffer cover 21 shields the main body 1, and the buffer cover 21 is used to withstand external impacts, preventing the main body 1 from being directly subjected to external impacts, thereby further improving the seismic performance of the main body 1 and ensuring the normal use of the primary and secondary fusion column circuit breaker.

[0035] Reference Figure 2 and Figure 3 The material of the buffer airbag 23 can be rubber or silicone. In the embodiment of the present application, the material of the buffer airbag 23 is rubber, which has a certain deformation ability. Multiple buffer airbags 23 are connected at intervals on the outer peripheral surface of the main body 1. The buffer airbag 23 converts external kinetic energy into deformation potential energy of the buffer airbag 23, so that the buffer cover 21 is not easily deformed by external impact, thereby improving the shock resistance of the buffer cover 21 and extending the service life of the buffer cover 21.

[0036] Reference Figure 2 and Figure 3, the fixing component 22 is connected between the buffer cover 21 and the body 1, the fixing component 22 limits the direction of the buffer cover 21 on the body 1, the number of fixing components 22 can be one, two or more, in the embodiment of the present application, the number of fixing components 22 is two, and the two fixing components 22 are located at both ends of the length direction of the body 1; the fixing component 22 includes a fixing plate 221, a fixing block 222 and an elastic member 223, the surface of the body 1 is provided with a slide 13 for the fixing plate 221 to slide, the sliding direction of the fixing plate 221 is parallel to the length direction of the body 1, the slide 13 connects the fixing cavity 12 and one of the threaded holes 11, the fixing block 222 is welded and fixed to the end face of the fixing plate 221 facing the inner wall of the buffer cavity, the inner wall of the buffer cover 21 is provided with a groove 211 for the fixing block 222 to be embedded, and the surface of the fixing plate 221 is provided with a positioning hole 2211 for the fixing bolt 24 to pass through, the axis of the positioning hole 2211 is parallel to the height direction of the body 1, and the positioning hole 2211 passes through the outer wall of the body 1 along its own axis.

[0037] Reference Figure 2 and Figure 3 The elastic member 223 can be a compression spring or a tension spring. In the embodiment of the present application, the elastic member 223 is a compression spring with a certain deformation ability. One end of the elastic member 223 in the elastic direction is connected to the inner wall of the slide 13, and the other end of the elastic member 223 in the elastic direction is fixed to the plate surface 221. The elastic member 223 has the elastic force to drive the fixed plate 221 to slide toward the direction close to the main body 1, and the communication effect between the positioning hole 2211 and the threaded hole 11 tends to disappear.

[0038] Reference Figure 2 and Figure 3 The elastic member 223 is located on the side of the fixing plate 221 away from the fixing block 222. When the cover opening of the buffer cover 21 is embedded in the fixing cavity 12, the inner wall of the cover opening of the buffer cover 21 abuts against the inner wall of the fixing cavity 12 to form a limit, thereby realizing the initial positioning of the buffer cover 21 on the main body 1, driving the fixing plate 221 to overcome the elastic force of the elastic member 223 and slide in the direction away from the main body 1. The fixing block 222 is embedded in the embedding groove 211, and the outer peripheral surface of the fixing block 222 abuts against the inner wall of the embedding groove 211 to form a limit, so that the buffer cover 21 is not easy to separate from the main body 1, further realizing the limit stability of the buffer cover 21 on the main body 1.

[0039] Reference Figure 2 and Figure 3 At the same time, the positioning hole 2211 is connected to the threaded hole 11, and the end of the fixing bolt 24 is sequentially passed through the positioning hole 2211 and the threaded hole 11 and screwed and fixed to the ground, so that the fixing plate 221 is not easily offset on the inner wall of the slide 13, thereby limiting the position of the fixing plate 221 on the inner wall of the slide 13, ensuring that the fixing block 222 is not easily separated from the embedded groove 211, and further improving the limiting stability of the buffer cover 21 on the main body 1.

[0040] Reference Figure 2 and Figure 3 A vent 212 is provided on the top surface of the buffer cover 21. The inner cavities of the buffer airbags 23 on both sides of the length direction of the main body 1 are connected to the embedded groove 211 and the vent 212. The inner wall of the vent 212 is connected with a filter 3. The filter 3 can filter impurities in the air, making it difficult for external impurities to enter the inner cavity of the buffer airbag 23 through the vent 212, thereby ensuring the cleanliness of the inner cavity of the buffer airbag 23, and the surface of the filter 3 is flush with the top surface of the buffer cover 21.

[0041] Reference Figure 3 and Figure 4 , multiple elastic blocks 4 are connected to the inner wall of the embedding groove 211 at intervals. The material of the elastic block 4 can be rubber or silicone. In the embodiment of the present application, the material of the elastic block 4 is rubber, which has a certain deformation ability. Multiple elastic blocks 4 are spliced ​​to form a circular plate and close the embedding groove 211, so that external impurities are not easy to enter the inner cavity of the buffer airbag 23 through the embedding groove 211, further improving the sealing stability of the inner cavity of the buffer airbag 23.

[0042] Reference Figure 3 and Figure 4 When the fixing block 222 is embedded in the embedding groove 211, the fixing block 222 squeezes the elastic block 4, and the elastic block 4 is deformed under pressure. The outer wall of the fixing block 222 and the inner wall of the embedding groove 211 clamp the two sides of the elastic block 4 to form a limit, further increasing the clamping force between the fixing block 222 and the inner wall of the embedding groove 211.

[0043] Reference Figure 2 and Figure 3 The cushioning airbags 23 on both sides of the length direction of the main body 1 are equipped with storage components 5. The storage components 5 can control the expansion and exhaust of the cushioning airbags 23. The storage components 5 include a storage plate 51 and an elastic member 2 52. The storage plate 51 is slidably connected to the inner cavity wall of the cushioning airbag 23. The sliding direction of the storage plate 51 is parallel to the length direction of the main body 1. The elastic member 2 52 can be a compression spring or a tension spring. In the embodiment of the present application, the elastic member 2 52 is a compression spring with a certain deformation ability. One end of the elastic member 2 52 in the elastic direction is connected to the inner wall of the cushioning airbag 23, and the other end of the elastic member 2 52 in the elastic direction is connected to the board surface of the storage plate 51. The elastic member 2 52 has elastic force to drive the storage plate 51 to slide in the direction close to the main body 1, pushing the air in the cushioning airbag 23 to be discharged from the vent 212, thereby realizing the exhaust of the cushioning airbag 23 and reducing the footprint of the cushioning cover 21, thereby making it convenient for users to transport and store the cushioning cover 21.

[0044] Reference Figure 2 and Figure 3When the fixing block 222 is embedded in the embedding groove 211, the end face of the fixing block 222 abuts against the surface of the receiving plate 51 and drives the receiving plate 51 to overcome the elastic force of the elastic member 2 52 and slide in the direction away from the main board, pushing the external air to pass through the filter 3 and then enter the inner cavity of the buffer airbag 23 from the vent 212, thereby expanding the buffer airbag 23.

[0045] Reference Figure 2 and Figure 3 The top surface of the buffer cover 21 is rotatably connected to a scraper 6, and the rotation axis of the scraper 6 and the height direction of the buffer cover 21 are parallel to each other. The scraping end of the scraper 6 can press against the surface of the buffer cover 21 and scrape off impurities on the surface of the filter screen 3, so that the impurities are not easy to clog the filter screen 3, thereby realizing directional cleaning of impurities on the surface of the filter screen 3.

[0046] Reference Figure 2 and Figure 3 , a transmission assembly 7 is connected between the scraper 6 and one of the receiving plates 51, and the transmission assembly 7 can receive the power of the receiving plate 51 and drive the scraper 6 to rotate. The end of the scraper 6 rotating shaft passes through the surface of the buffer cover 21 and is located in the vent 212. The transmission assembly 7 includes a connecting rope 71 and an elastic member 3 72. One end of the connecting rope 71 is connected to the plate surface of the receiving plate 51, and the other end of the connecting rope 71 is wrapped around the outer circumference of the scraper 6 rotating shaft, and the elastic member 3 72 can be a coil spring or a tension spring. In the embodiment of the present application, the elastic member 3 72 is a coil spring with a certain deformation ability. One end of the elastic member 3 72 in the elastic direction is connected to the surface of the scraper 6 rotating shaft, and the other end of the elastic member 3 72 in the elastic direction is connected to the inner wall of the vent 212. The elastic member 3 72 has elastic force to drive the scraper 6 to rotate. The connecting rope 71 is wrapped around the outer circumference of the scraper 6 rotating shaft, and the connecting rope 71 between the scraper 6 and the receiving plate 51 tends to be in a taut state.

[0047] Reference Figure 2 and Figure 3 When the end face of the fixed block 222 abuts against the surface of the receiving plate 51 and drives the receiving plate 51 to slide in the direction away from the main body 1, the receiving plate 51 pulls the connecting rope 71 to drive the scraper 6 to rotate, and the scraping end of the scraper 6 abuts against the surface of the buffer cover 21 and scrapes impurities on the surface of the filter 3; when the elastic force of the elastic member 2 52 drives the receiving plate 51 to slide in the direction close to the main body 1, the pulling force of the receiving plate 51 on the connecting rope 71 disappears, and the elastic member 3 72 drives the scraper 6 to rotate in the opposite direction. The connecting rope 71 is wrapped around the outer peripheral surface of the rotating shaft of the scraper 6 to achieve storage. At the same time, the scraping end of the scraper 6 abuts against the surface of the buffer cover 21 and scrapes impurities on the surface of the filter 3, realizing directional rotation of the scraper 6. No external power motor is required to drive the scraper 6 to rotate, reducing energy loss, thereby embodying the concept of energy saving.

[0048] The implementation principle of a seismic-resistant primary and secondary fusion column-mounted circuit breaker in the embodiment of the present application is as follows: the body 1 is moved to the installation station, the cover opening of the buffer cover 21 is embedded in the fixed cavity 12, the inner wall of the cover opening of the buffer cover 21 abuts against the inner wall of the fixed cavity 12 to form a limit, and the buffer cover 21 is initially positioned on the body 1, and the fixing plate 221 is driven to overcome the elastic force of the elastic member 223 and slide in the direction away from the body 1, and the fixing block 222 is embedded in the embedding groove 211, and the fixing block 222 squeezes the elastic block 4, and the elastic block 4 is compressed The outer wall of the fixing block 222 and the inner wall of the embedding groove 211 clamp the two sides of the elastic block 4 to form a limit, further improving the clamping force between the fixing block 222 and the inner wall of the embedding groove 211, the positioning hole 2211 is connected to the threaded hole 11, and the end of the fixing bolt 24 passes through the positioning hole 2211 and the threaded hole 11 in turn and is screwed and fixed to the ground, so that the fixing plate 221 is not easy to deviate on the inner wall of the slide 13, realizing the limit of the fixing plate 221 on the inner wall of the slide 13, ensuring that the fixing block 222 is not easy to come off The embedded groove 211 further improves the limiting stability of the buffer cover 21 on the main body 1; the end face of the fixed block 222 abuts against the surface of the receiving plate 51 and drives the receiving plate 51 to overcome the elastic force of the elastic member 2 52 and slide in the direction away from the main board, pushing the outside air to pass through the filter 3 and then enter the inner cavity of the buffer air bag 23 from the vent 212 to expand the buffer air bag 23, and the receiving plate 51 pulls the connecting rope 71 to drive the scraper 6 to rotate, and the scraping end of the scraper 6 abuts against the surface of the buffer cover 21 and scrapes away impurities on the surface of the filter 3; the inner cavity of the buffer cover 21 shields the main body 1, so that the buffer cover 21 is used to resist animal impact and prevent the main body 1 from being directly impacted by the animal. At the same time, the buffer air bag 23 can convert external kinetic energy into its own elastic potential energy, so that the buffer cover 21 is not easily deformed by compression, further improving the seismic performance of the main body 1, ensuring the normal use of the primary and secondary fusion column circuit breaker, reducing the number of maintenance times for the primary and secondary fusion column circuit breaker, and thus reducing the use cost of the primary and secondary fusion column circuit breaker.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A seismic-resistant primary and secondary fusion column mounted circuit breaker, characterized by: The invention comprises a body (1) and a shock absorbing device (2), wherein the shock absorbing device (2) comprises a buffer cover (21), a fixing assembly (22) and a plurality of fixing bolts (24); a plurality of threaded holes (11) for the fixing bolts (24) to pass through are provided on the surface of the body (1); the ends of the fixing bolts (24) can pass through the threaded holes (11) and be screwed and fixed on the ground to form a limit; the fixing assembly (22) is connected between the buffer cover (21) and the body (1); the fixing assembly (22) limits the buffer cover (21) on the body (1), and the inner cavity of the buffer cover (21) shields the body (1).

2. The earthquake-resistant primary and secondary fused column mounted circuit breaker according to claim 1, characterized in that: The surface of the body (1) is provided with a fixing cavity (12) for the end of the buffer cover (21) to be embedded, the fixing assembly (22) comprises a fixing plate (221) and a fixing block (222), the surface of the body (1) is provided with a slideway (13) for the fixing plate (221) to slide, the slideway (13) is connected to the fixing cavity (12) and one of the threaded holes (11), the fixing block (222) is connected to the end surface of the fixing plate (221) facing the inner cavity of the buffer cover (21), and the buffer cover ( 21) The inner cavity wall is provided with an embedding groove (211) for the fixing block (222) to be embedded, and the plate surface of the fixing plate (221) is provided with a positioning hole (2211) for the fixing bolt (24) to pass through. When the fixing plate (221) slides in a direction away from the main body (1), the positioning hole (2211) is connected to one of the threaded holes (11), the fixing block (222) is embedded in the embedding groove (211), and the outer wall of the fixing block (222) is pressed against the inner wall of the embedding groove (211) to form a limit.

3. The earthquake-resistant primary and secondary fused column mounted circuit breaker according to claim 2, characterized in that: The fixing assembly (22) further comprises an elastic member (223), one end of the elastic member (223) in the elastic direction is connected to the inner wall of the slideway (13), and the other end of the elastic member (223) in the elastic direction is connected to the surface of the fixing plate (221). The elastic member (223) has an elastic force that drives the fixing plate (221) to slide in a direction close to the body (1), the communication effect between the positioning hole (2211) and the threaded hole (11) disappears, and the insert tends to be separated from the insert groove (211).

4. The earthquake-resistant primary and secondary fused column mounted circuit breaker according to claim 2, characterized in that: The shock absorbing device (2) further comprises a plurality of buffer air bags (23), and the plurality of buffer air bags (23) are connected to the outer peripheral surface of the buffer cover (21) at intervals.

5. The earthquake-resistant primary and secondary fused column mounted circuit breaker according to claim 4, characterized in that: The top surface of the buffer cover (21) is provided with a vent hole (212), wherein the inner cavity of one of the buffer airbags (23) is connected to the embedded groove (211) and the vent hole (212), and the buffer airbag (23) is connected to a storage assembly (5), wherein the storage assembly (5) comprises a storage plate (51), and the storage plate (51) is slidably connected to the inner cavity wall of the buffer airbag (23). When the fixed block (222) is embedded in the embedded groove (211), the end face of the fixed block (222) abuts against the plate surface of the storage plate (51), and drives the storage plate (51) away from the body (1), and the plate surface of the storage plate (51) presses the inner wall of the buffer airbag (23) to open.

6. The earthquake-resistant primary and secondary fused column mounted circuit breaker according to claim 5, characterized in that: The storage assembly (5) further comprises a second elastic member (52), one end of the second elastic member (52) in the elastic direction is connected to the inner wall of the cushioning airbag (23), and the other end of the second elastic member (52) in the elastic direction is connected to the surface of the storage plate (51), and the second elastic member (52) has a tendency to drive the storage plate (51) to slide in a direction close to the main body (1) by elastic force.

7. The earthquake-resistant primary and secondary fused column mounted circuit breaker according to claim 6, characterized in that: The inner wall of the vent hole (212) is connected to a filter (3), the filter (3) is capable of filtering impurities in the air, and the surface of the filter (3) is flush with the surface of the buffer cover (21).

8. The earthquake-resistant primary and secondary fused column mounted circuit breaker according to claim 5, characterized in that: The inner wall of the embedding groove (211) is connected with a plurality of elastic blocks (4) at intervals. The plurality of elastic blocks (4) are spliced ​​together to form a circular plate and close the embedding groove (211). When the fixed block (222) is embedded in the embedding groove (211), the surface of the fixed block (222) and the inner wall of the embedding groove (211) clamp the two sides of the elastic block (4) to form a limit.

9. The earthquake-resistant primary and secondary fused column mounted circuit breaker according to claim 7, characterized in that: The top surface of the buffer cover (21) is rotatably connected to a scraper (6), and the scraping end of the scraper (6) is pressed against the surface of the buffer cover (21) and scrapes impurities on the surface of the filter screen (3).

10. The earthquake-resistant primary and secondary fused column mounted circuit breaker according to claim 9, characterized in that: A transmission assembly (7) is connected between the scraper (6) and the receiving plate (51), and the transmission assembly (7) includes an elastic member (72) and a connecting rope (71). One end of the connecting rope (71) is connected to the surface of the receiving plate (51), and the other end of the connecting rope (71) is wound around the rotating shaft of the scraper (6). One end of the elastic member (72) in the elastic direction is connected to the surface of the buffer cover (21), and the other end of the elastic member (72) in the elastic direction is connected to the rotating shaft of the scraper (6). The elastic member (72) has elastic force to drive the scraper (6) to rotate. The connecting rope (71) is wound around the outer peripheral surface of the rotating shaft of the scraper (6), and the connecting rope (71) between the scraper (6) and the receiving plate (51) tends to be in a tight state.

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