A primary and secondary integrated pole-mounted circuit breaker and its usage method

Abstract

This invention discloses a primary and secondary integrated pole-mounted circuit breaker and its usage method, belonging to the field of circuit breaker technology. By squeezing two handles, the slider can drive the locking rod to disengage from the slot, thereby releasing the locking state between the moving and stationary contacts. The sliding rod is supported by a first spring, which lifts the isolating switch via a pin. When the isolating switch is not under force, the moving and stationary contacts are always separated, preventing the isolating switch from deflecting and contacting the stationary contact due to external force. When the isolating switch and the pole insulation assembly are connected, the moving contact or the isolating switch is pressed down. When the moving and stationary contacts are in close contact, the slider is supported by the elastic force of a second spring, causing the slider to drive the locking rod into the slot, thereby locking the stationary and moving contacts and preventing separation of the stationary and moving contacts due to external force collisions, ensuring the operational stability of the primary and secondary integrated pole-mounted circuit breaker.

Description

Technical Field

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

[0002] A circuit breaker is a high-voltage or high-current switch with arc extinguishing or arc prevention devices. A primary and secondary integrated pole-mounted circuit breaker is a power device that integrates the functions of primary equipment (such as the circuit breaker body) and secondary equipment (such as control, protection, and monitoring equipment). It is mainly used for the segmentation, interconnection, and protection of 10kV or 12kV distribution networks. The design concept of this device is to integrate the functions of traditional primary and secondary equipment to improve the response speed, diagnostic accuracy, and intelligence level of the device.

[0003] Existing integrated primary and secondary pole-mounted circuit breakers are usually fixed to an external mounting bracket with multiple bolts, which is inconvenient to operate. Moreover, during use, the multiple bolts fixing the integrated primary and secondary pole-mounted circuit breaker may loosen under the action of external force, affecting the installation stability.

[0004] Furthermore, the isolating switch, as a key connection point for switching the circuit state of a primary and secondary integrated pole-mounted circuit breaker, mainly consists of moving contacts, stationary contacts, insulators, and operating mechanisms. The isolating switch typically has a structure similar to a switch. The moving contact can be opened and closed with the stationary contact under the action of the operating mechanism. The insulator is used to support the conductive part of the isolating switch and ensure its insulation from other components. When switching the circuit state, the isolating switch needs to be operated to merge the stationary and moving contacts. When merging by plugging, the stationary and moving contacts are easily separated due to external force collisions, resulting in poor contact. After separating the stationary and moving contacts, a gap is left between them. The moving contact is also prone to deflection or even contact with the stationary contact due to external force, which in turn affects the working stability and safety of the primary and secondary integrated pole-mounted circuit breaker. Summary of the Invention

[0005] The purpose of this invention is to provide a primary and secondary integrated pole-mounted circuit breaker and its usage method, in order to solve the problems mentioned in the background art, such as the multiple bolts fixing the circuit breaker during use may loosen under the action of external force, the need to operate the isolating switch to merge the stationary and moving contacts when switching circuit states, the easy separation of the stationary and moving contacts due to external force collision when merging by plugging, resulting in poor contact, and the easy deflection or even contact with the stationary contact due to external force after separating the stationary and moving contacts and leaving a gap between them.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A primary and secondary integrated pole-mounted circuit breaker and its usage method are disclosed, comprising a bottom support, on the top of which are mounted a plurality of circuit breaker bodies. Each circuit breaker body has external terminals. A hinged seat is mounted on the outer wall of each circuit breaker body away from the terminals. An isolating switch is hingedly mounted within the hinged seat. An operating insulation assembly is mounted in the middle of each isolating switch. A rotating shaft is sleeved at the bottom end of the operating insulation assembly and mounted on the bottom support. A moving contact is mounted at the bottom end of each isolating switch. A support insulation assembly is connected to the bottom of the moving contact and mounted on the bottom end of the support insulation assembly. On one side of the bottom bracket, slide rails are respectively provided on both sides of the bottom of the moving contact. The inner wall of the slide rail is provided with a groove. A locking component is installed in the groove. The bottom end of the locking component is engaged with the top of the support insulation component. A mounting base is fixed to the bottom of the bottom bracket. A support plate is provided at the bottom of the mounting base. A mounting component is installed through the mounting base. A sliding hole is provided at the bottom of the mounting base corresponding to the position of the mounting component. A sliding groove is provided at one end of the mounting component. An anti-deviation component is connected in the sliding groove. A toothed ring is provided on the outside of the anti-deviation component. The toothed ring is fixed to one side of the mounting base.

[0008] As a further embodiment of the present invention, the operating insulation assembly includes an operating insulator, the bottom end of which is provided with a rotating sleeve, the rotating sleeve being connected to the outer wall of a rotating shaft, the top end of which is provided with a sliding groove, a sliding column being slidably connected within the sliding groove, the top end of the sliding column being connected with a pin, the sliding column being hinged to the middle of an isolating switch via the pin, and a first spring being fixedly connected between the bottom end of the sliding column and the inner wall of the sliding groove.

[0009] As a further embodiment of the present invention, the post insulation assembly includes a post insulator, a top block is fixed to the top of the post insulator, a stationary contact is connected to one side of the top block, the stationary contact overlaps the inner wall of the moving contact, a connecting groove is provided on one side of the top block, and slots are respectively provided on both sides of the inner wall of the connecting groove, and the locking assembly is located in the connecting groove and is engaged in the two slots.

[0010] As a further embodiment of the present invention, the locking assembly includes two handles, which slide through the groove. A slider is fixed to the bottom of the handle, and a locking rod is fixed to the bottom of the slider. The locking rod is slidably connected in the slide rail and engaged in the slot.

[0011] As a further embodiment of the present invention, the end of the lever is designed in an L-shape, and the part of the lever embedded in the slot is adapted to the shape of the slot. A sliding rod is sleeved inside the slider, and the sliding rod is fixed on both sides of the inner wall of the groove. A second spring is sleeved on the sliding rod, and the two ends of the second spring are respectively fixed on one side of the slider and the inner wall of the groove.

[0012] As a further embodiment of the present invention, the mounting assembly includes a bidirectional lead screw, bearings are respectively mounted on both sides of the bidirectional lead screw, the two bearings are respectively snapped into both sides of the mounting base, nuts are respectively threaded to both sides of the bidirectional lead screw, a slide bar is fixed to the outside of the nut, and a mounting block is fixed to the bottom of the slide bar. The mounting block is L-shaped and slides through the slide hole.

[0013] As a further embodiment of the present invention, the anti-deviation component includes an ear plate, a rotating handle is fixed on one side of the ear plate, a gear is fixedly connected to the other side of the ear plate, the gear is engaged in the gear ring, a sliding block is provided in the middle of the gear, and the sliding block is fixed to the ear plate, the sliding block is slidably connected in the sliding groove, and the cross-sectional shape of the sliding block is T-shaped, and a third spring is fixedly connected between the sliding block and the inner wall of the sliding groove.

[0014] A method for using a primary and secondary integrated pole-mounted circuit breaker, the method comprising the following steps:

[0015] When installing the primary and secondary integrated pole-mounted circuit breaker, move the mounting base to the installation position so that the support plate at the bottom of the mounting base contacts the mounting base surface. At this time, the four mounting blocks are respectively located in the preset L-shaped grooves on the mounting base surface. By holding the handle and pulling it to one side, the ear plate drives the gear and sliding block to move. During the sliding of the sliding block in the sliding groove, the gear can disengage from the gear ring, that is, release the locking state of the double-acting screw. Then, rotate the handle to drive the sliding block to rotate through the ear plate. Because the cross-sectional shape of the sliding block is T-shaped and slides in the sliding groove, the sliding block can drive the double-acting screw to rotate outside the two bearings through the sliding groove.

[0016] During the rotation of the bidirectional lead screw, the two opposing nuts can drive the two slide bars to move away from each other, causing the slide bars to move the mounting block at the bottom and engage with the pre-set L-shaped groove on the mounting base, thus achieving the purpose of installing the primary and secondary integrated pole-mounted circuit breaker. Moreover, the mounting block is limited by the sliding hole, which improves the stability of the horizontal movement of the mounting block. Then, the handle is released, and the sliding block is driven to move inside the sliding groove by the tension of the third spring. The sliding block then drives the gear to approach the mounting base through the ear plate, so that the gear can engage with the inner wall of the gear ring. The ear plate is locked by the gear engagement, so that the bidirectional lead screw will not rotate freely.

[0017] When the isolating switch is disconnected from the post insulation assembly, squeezing the two handles causes the two sliders to move closer together, allowing the sliders to slide outside the slide rod and squeeze the second spring. At the same time, the sliders can drive the locking rod to disengage from the slot, thereby releasing the locking state between the moving contact and the stationary contact. Lifting the two handles causes the moving contact to move and disengage from the stationary contact and the top block on the post insulator. Next, the first spring inside the operating insulator supports the slide rod, causing the slide rod to lift the isolating switch through the pin. The bottom end of the operating insulator rotates outside the rotating shaft through the rotating sleeve, while the end of the isolating switch rotates inside the hinge seat. Therefore, after releasing the two handles, the isolating switch causes the moving contact to deflect. When the isolating switch is not under force, the moving contact and the stationary contact are always separated, preventing the isolating switch from deflecting and contacting the stationary contact due to external force.

[0018] When connecting the isolating switch and the post insulation assembly, press down the moving contact or the isolating switch to rotate the top of the isolating switch inside the hinge seat. The moving contact at the bottom of the isolating switch then approaches the top block on the post insulator, and the two locking rods on the moving contact move into the connecting groove. Because the ends of the locking rods are L-shaped, the two locking rods will move closer to each other after being pressed. When the moving contact is in close contact with the stationary contact on the top block, the spring force of the second spring supports the slider, causing the slider to drive the locking rods into the locking groove, thereby locking the stationary contact and the moving contact. This prevents the stationary contact and the moving contact from separating due to external force collisions and ensures the connection stability between the stationary contacts.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention uses two handles to bring two sliders closer together. The sliders then disengage the locking lever from the slot, releasing the locking state between the moving and stationary contacts. A first spring supports the sliding column, which, via a pin, lifts the isolating switch. Therefore, when the two handles are released, the isolating switch deflects the moving contact. When the isolating switch is not under force, the moving and stationary contacts remain separated, preventing contact between the isolating switch and the stationary contact due to external force. This ensures the safe operation of the primary and secondary integrated pole-mounted circuit breaker and connects the isolating switch and the support... When the pole-mounted insulator assembly is pressed down, the moving contact or isolating switch is pressed down. The moving contact at the bottom of the isolating switch approaches the top block on the pole insulator, and the two locking rods on the moving contact move into the connecting groove. Because the ends of the locking rods are L-shaped, the two locking rods will move closer to each other after being pressed. When the moving contact is in close contact with the stationary contact on the top block, the spring force of the second spring supports the slider, causing the slider to drive the locking rods into the locking groove, thereby achieving the purpose of locking the stationary contact and the moving contact. This prevents the stationary contact and the moving contact from separating due to external force collision, ensuring the working stability of the primary and secondary integrated pole-mounted circuit breaker.

[0021] 2. In this invention, when installing the integrated primary and secondary pole-mounted circuit breaker, the mounting base is moved to the installation position so that the support plate at the bottom of the mounting base contacts the mounting base surface. At this time, the four mounting blocks are respectively located in the preset L-shaped grooves on the mounting base surface. By holding the handle and pulling it to one side, the ear plate drives the gear and sliding block to move. During the sliding of the sliding block in the sliding groove, the gear can disengage from the gear ring, that is, release the locking state of the bidirectional screw. Then, rotating the handle drives the sliding block to rotate through the ear plate. Because the sliding block has a T-shaped cross-section and slides in the sliding groove, during the rotation of the bidirectional screw, the two opposite nuts can drive the two slide bars to move away from each other, so that the slide bars drive the mounting blocks at the bottom to move and lock into the preset L-shaped grooves on the mounting base surface, thus achieving the purpose of installing the integrated primary and secondary pole-mounted circuit breaker. This method abandons the traditional method of using multiple bolts to fix it to the external mounting base surface, improving installation stability and ease of operation.

[0022] 3. This invention enables the installation of a primary and secondary integrated pole-mounted circuit breaker by inserting the mounting block into a pre-set L-shaped groove on the mounting base. After stopping the rotation of the handle and then releasing it, the sliding block moves within the sliding groove due to the tension of the third spring. The sliding block then drives the gear to approach the mounting base via the ear plate, allowing the gear to engage with the inner wall of the gear ring. The ear plate is locked through the gear engagement, preventing the bidirectional lead screw from rotating freely and thus preventing the nut from moving the slide bar. This achieves the purpose of locking the position of the mounting block, preventing the mounting block from loosening and affecting the stability of the primary and secondary integrated pole-mounted circuit breaker installation. When removing the primary and secondary integrated pole-mounted circuit breaker, the handle is held and pulled to one side, causing the ear plate to move the gear and sliding block. During the sliding of the sliding block within the sliding groove, the gear can disengage from the gear ring, facilitating the release of the locking state of the bidirectional lead screw. Then, rotating the handle drives the bidirectional lead screw to rotate, allowing for adjustment of the positions of the nut, slide bar, and mounting block, thereby improving operational convenience. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the present invention viewed from below;

[0026] Figure 3This is a schematic diagram of the connection between the bottom bracket and the circuit breaker body of the present invention;

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the operating insulation component of the present invention;

[0028] Figure 5 This is a schematic diagram of the connection between the moving contact and the locking component of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the support insulation component of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the mounting component of the present invention;

[0031] Figure 8 This is a schematic diagram of a partial cross-section of the bidirectional lead screw of the present invention;

[0032] Figure 9 This is a schematic diagram of the anti-deviation component of the present invention;

[0033] Figure 10 For the present invention Figure 4 Enlarged structural diagram at point A in the middle.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Bottom bracket; 2. Circuit breaker body; 3. Terminal block; 4. Isolating switch; 5. Hinge seat; 6. Operating insulation assembly; 601. Operating insulator; 602. Rotating sleeve; 603. Slide groove; 604. Slide column; 605. Pin; 606. First spring; 7. Rotating shaft; 8. Moving contact; 9. Post insulation assembly; 901. Post insulator; 902. Top block; 903. Stationary contact; 904. Connecting groove; 905. Slot; 10. Slide rail; 11. Locking assembly; 11. Handle; 112. Slider; 113. Locking rod; 114. Second spring; 115. Slide rod; 12. Groove; 13. Mounting base; 14. Support plate; 15. Mounting assembly; 151. Two-way lead screw; 152. Bearing; 153. Nut; 154. Slide bar; 155. Mounting block; 16. Sliding hole; 17. Gear ring; 18. Anti-deviation assembly; 181. Ear plate; 182. Rotary handle; 183. Gear; 184. Sliding block; 185. Third spring; 19. Sliding groove. Detailed Implementation

[0036] 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.

[0037] Please see Figures 1-3 The present invention provides a technical solution:

[0038] A primary and secondary integrated pole-mounted circuit breaker includes a bottom support 1. Several circuit breaker bodies 2 are mounted on the top of the bottom support 1. Terminal blocks 3 are provided on the outside of the circuit breaker bodies 2. A hinge seat 5 is mounted on the side of the outer wall of the circuit breaker bodies 2 away from the terminal blocks 3. An isolating switch 4 is hingedly mounted inside the hinge seat 5. An operating insulation component 6 is mounted in the middle of the isolating switch 4. A rotating shaft 7 is sleeved on the bottom end of the operating insulation component 6. The rotating shaft 7 is mounted on the bottom support 1. A moving contact 8 is mounted on the bottom end of the isolating switch 4. A support insulation component 9 is connected to the bottom of the moving contact 8. The bottom end of the support insulation component 9 is mounted on one side of the bottom support 1.

[0039] like Figure 4 As shown, as a further embodiment of the present invention, the operating insulation assembly 6 includes an operating insulator 601. The bottom end of the operating insulator 601 is provided with a rotating sleeve 602, which is connected to the outer wall of the rotating shaft 7. The top end of the operating insulator 601 is provided with a sliding groove 603. A sliding column 604 is slidably connected in the sliding groove 603. The top end of the sliding column 604 is connected with a pin 605. The sliding column 604 is hinged to the middle of the isolating switch 4 through the pin 605. A first spring 606 is fixedly connected between the bottom end of the sliding column 604 and the inner wall of the sliding groove 603.

[0040] The sliding rod 604 is supported by the first spring 606 inside the operating insulator 601, so that the sliding rod 604 lifts the isolating switch 4 through the pin 605. The bottom end of the operating insulator 601 rotates outside the rotating shaft 7 through the rotating sleeve 602, while the end of the isolating switch 4 rotates inside the hinge seat 5.

[0041] like Figure 6 As shown, as a further embodiment of the present invention, the support insulation assembly 9 includes a support insulator 901, a top block 902 fixed to the top of the support insulator 901, a stationary contact 903 connected to one side of the top block 902, the stationary contact 903 overlapping the inner wall of the moving contact 8, so that the moving contact 8 and the stationary contact 903 are always separated when the isolating switch 4 is not under force; a connecting groove 904 is provided on one side of the top block 902, and slots 905 are respectively provided on both sides of the inner wall of the connecting groove 904, and the locking assembly 11 is located in the connecting groove 904 and is engaged in the two slots 905.

[0042] like Figure 5 and 10 As shown, slide rails 10 are respectively provided on both sides of the bottom of the moving contact 8. The inner wall of the slide rail 10 is provided with a groove 12. A locking component 11 is installed in the groove 12. The bottom end of the locking component 11 is engaged with the top of the support insulation component 9. The locking component 11 includes two handles 111. The handles 111 slide through the groove 12. The bottom end of the handle 111 is fixed with a slider 112. The bottom of the slider 112 is fixed with a locking rod 113. The locking rod 113 is slidably connected in the slide rail 10 and engaged in the locking groove 905.

[0043] The moving contact 8 at the bottom of the isolating switch 4 is close to the top block 902. The two locking rods 113 on the moving contact 8 move into the connecting groove 904. When the two locking rods 113 are pressed, they will move closer to each other, so that the locking rods 113 can slide into the connecting groove 904 without the need for manual adjustment of the position of the locking rods 113.

[0044] The end of the lever 113 is L-shaped, and the part of the lever 113 that is embedded in the slot 905 is adapted to the shape of the slot 905. The slider 112 is fitted with a slide rod 115. The lever 113 can move in the slide 10. The slide 10 limits the lever 113 and supports the slider 112 in conjunction with the slide rod 115, thereby improving the stability of the horizontal movement of the lever 113. The slide rod 115 is fixed on both sides of the inner wall of the groove 12. The slide rod 115 is fitted with a second spring 114. The two ends of the second spring 114 are respectively fixed to one side of the slider 112 and the inner wall of the groove 12.

[0045] When the moving contact 8 is in close contact with the stationary contact 903 on the top block 902, the second spring 114 supports the slider 112, causing the slider 112 to drive the locking rod 113 into the slot 905, thereby locking the stationary contact 903 and the moving contact 8 and preventing the stationary contact 903 and the moving contact 8 from separating due to external force collision.

[0046] As a further embodiment of the present invention, a mounting base 13 is fixed to the bottom of the bottom bracket 1, a support plate 14 is provided at the bottom of the mounting base 13, a mounting component 15 is installed through the mounting base 13, a sliding hole 16 is provided at the bottom of the mounting base 13 corresponding to the position of the mounting component 15, a sliding groove 19 is provided at one end of the mounting component 15, an anti-deviation component 18 is connected in the sliding groove 19, a toothed ring 17 is provided on the outside of the anti-deviation component 18, and the toothed ring 17 is fixed to one side of the mounting base 13.

[0047] like Figure 7-8As shown, the mounting assembly 15 includes a bidirectional lead screw 151, bearings 152 are mounted on both sides of the bidirectional lead screw 151, and the two bearings 152 are respectively snapped into both sides of the mounting base 13. Nuts 153 are threaded to both sides of the bidirectional lead screw 151, and a slide bar 154 is fixed to the outside of the nut 153. A mounting block 155 is fixed to the bottom of the slide bar 154. The mounting block 155 is L-shaped and slides through the slide hole 16.

[0048] Rotating the handle 182 drives the sliding block 184 to rotate via the ear plate 181. Because the sliding block 184 has a T-shaped cross-section and slides in the sliding groove 19, during the rotation of the bidirectional screw 151, the two nuts 153 can drive the two slide bars 154 to move away from each other, so that the slide bars 154 drive the bottom mounting block 155 to move and get into the preset L-shaped groove on the mounting base, thereby improving the stability of the installation of the primary and secondary integrated pole-mounted circuit breaker.

[0049] like Figure 9 As shown, the anti-deviation assembly 18 includes an ear plate 181, a rotating handle 182 fixed on one side of the ear plate 181, and a gear 183 fixedly connected to the other side of the ear plate 181. The gear 183 is engaged in the gear ring 17. A sliding block 184 is provided in the middle of the gear 183, and the sliding block 184 is fixed to the ear plate 181. The sliding block 184 is slidably connected in the sliding groove 19, and the cross-sectional shape of the sliding block 184 is T-shaped. A third spring 185 is fixedly connected between the sliding block 184 and the inner wall of the sliding groove 19.

[0050] The sliding block 184 moves inside the sliding groove 19 due to the pulling force of the third spring 185. The sliding block 184 then drives the gear 183 to approach the mounting base 13 through the ear plate 181, so that the gear 183 can be engaged in the inner wall of the gear ring 17. The ear plate 181 is locked by the gear engagement, so that the bidirectional lead screw 151 will not rotate freely, and the mounting block 155 will not loosen and affect the stability of the installation of the primary and secondary fusion pole-mounted circuit breaker.

[0051] A method for using a primary and secondary integrated pole-mounted circuit breaker, the method comprising the following steps:

[0052] When installing the primary and secondary integrated pole-mounted circuit breaker, the mounting base 13 is moved to the installation position so that the support plate 14 at the bottom of the mounting base 13 contacts the mounting base surface. At this time, the four mounting blocks 155 are respectively located in the preset L-shaped grooves on the mounting base surface. By holding the handle 182 and pulling it to one side, the ear plate 181 drives the gear 183 and the sliding block 184 to move. During the sliding of the sliding block 184 in the sliding groove 19, the gear 183 can disengage from the gear ring 17, that is, release the locking state of the double-acting screw 151. Then, rotating the handle 182 drives the sliding block 184 to rotate through the ear plate 181. Because the cross-sectional shape of the sliding block 184 is T-shaped and slides in the sliding groove 19, the sliding block 184 can drive the double-acting screw 151 to rotate outside the two bearings 152 through the sliding groove 19.

[0053] During the rotation of the bidirectional lead screw 151, the two opposing nuts 153 can drive the two slide bars 154 to move away from each other, so that the slide bars 154 drive the bottom mounting block 155 to move and engage in the pre-set L-shaped groove on the mounting base, thereby achieving the purpose of installing the primary and secondary integrated pole-mounted circuit breaker. Moreover, the mounting block 155 is limited by the sliding hole 16, which improves the stability of the horizontal movement of the mounting block 155. Next, the handle 182 is released, and the sliding block 184 is driven to move inside the sliding groove 19 by the pulling force of the third spring 185. The sliding block 184 then drives the gear 183 to approach the mounting base 13 through the ear plate 181, so that the gear 183 can engage in the inner wall of the gear ring 17. The ear plate 181 is locked by the gear engagement, so that the bidirectional lead screw 151 will not rotate freely.

[0054] When the isolating switch 4 is disconnected from the post insulation assembly 9, squeezing the two handles 111 causes the two sliders 112 to move closer together, allowing the sliders 112 to slide outside the slide rod 115 and squeeze the second spring 114. At the same time, the sliders 112 can drive the locking rod 113 to disengage from the slot 905, thereby releasing the locking state between the moving contact 8 and the stationary contact 903. Lifting the two handles 111 causes the moving contact 8 to move away from the stationary contact 903 and the top block 902 on the post insulator 901. Then, by operating the insulator 60 The first spring 606 inside supports the sliding column 604, so that the sliding column 604 lifts the isolating switch 4 through the pin 605, and the bottom end of the operating insulator 601 rotates outside the rotating shaft 7 through the rotating sleeve 602, while the end of the isolating switch 4 rotates inside the hinge seat 5. Therefore, after releasing the two handles 111, the isolating switch 4 drives the moving contact 8 to deflect. When the isolating switch 4 is not under force, the moving contact 8 and the stationary contact 903 are always separated, preventing the isolating switch 4 from deflecting and contacting the stationary contact 903 due to external force.

[0055] When the isolating switch 4 and the post insulation assembly 9 are connected, the moving contact 8 or the isolating switch 4 is pressed down, causing the top of the isolating switch 4 to rotate inside the hinge seat 5. The moving contact 8 at the bottom of the isolating switch 4 then approaches the top block 902 on the post insulator 901. The two locking rods 113 on the moving contact 8 move into the connecting groove 904. Because the ends of the locking rods 113 are L-shaped, the two locking rods 113 will approach each other after being pressed. When the moving contact 8 is in close contact with the stationary contact 903 on the top block 902, the spring force of the second spring 114 supports the slider 112, causing the slider 112 to drive the locking rods 113 into the locking groove 905. This achieves the purpose of locking the stationary contact 903 and the moving contact 8, preventing the stationary contact 903 and the moving contact 8 from separating due to external force collision, and ensuring the connection stability between the stationary contacts 903 and 903.

Claims

1. A primary and secondary integrated pole-mounted circuit breaker, comprising a bottom support (1), characterized in that: The top of the bottom bracket (1) is equipped with several circuit breaker bodies (2). The circuit breaker bodies (2) are provided with terminals (3). A hinge seat (5) is installed on the outer wall of the circuit breaker body (2) away from the terminals (3). An isolating switch (4) is hinged in the hinge seat (5). An operating insulation component (6) is installed in the middle of the isolating switch (4). A rotating shaft (7) is sleeved on the bottom end of the operating insulation component (6). The rotating shaft (7) is installed on the bottom bracket (1). A moving contact (8) is installed on the bottom end of the isolating switch (4). A support insulation component (9) is connected to the bottom of the moving contact (8). The bottom end of the support insulation component (9) is installed on one side of the bottom bracket (1). Slides are respectively opened on both sides of the bottom of the moving contact (8). 10), the inner wall of the slide (10) is provided with a groove (12), a locking component (11) is installed in the groove (12), the bottom end of the locking component (11) is snapped into the top of the support insulation component (9), the bottom of the bottom bracket (1) is fixed with a mounting base (13), the bottom of the mounting base (13) is provided with a support plate (14), the mounting base (13) is installed with a mounting component (15) through it, the bottom of the mounting base (13) is provided with a sliding hole (16) corresponding to the position of the mounting component (15), one end of the mounting component (15) is provided with a sliding groove (19), the sliding groove (19) is connected with an anti-deviation component (18), the anti-deviation component (18) is provided with a toothed ring (17) on the outside, and the toothed ring (17) is fixed on one side of the mounting base (13).

2. The primary and secondary integrated pole-mounted circuit breaker according to claim 1, characterized in that: The operating insulation assembly (6) includes an operating insulator (601), with a rotating sleeve (602) at the bottom end of the operating insulator (601). The rotating sleeve (602) is connected to the outer wall of the rotating shaft (7). A sliding groove (603) is provided at the top end of the operating insulator (601). A sliding column (604) is slidably connected in the sliding groove (603). A pin (605) is connected to the top end of the sliding column (604). The sliding column (604) is hinged to the middle of the isolating switch (4) through the pin (605). A first spring (606) is fixedly connected between the bottom end of the sliding column (604) and the inner wall of the sliding groove (603).

3. The primary and secondary integrated pole-mounted circuit breaker according to claim 2, characterized in that: The post insulation assembly (9) includes a post insulator (901), a top block (902) is fixed on the top of the post insulator (901), a stationary contact (903) is connected to one side of the top block (902), the stationary contact (903) overlaps the inner wall of the moving contact (8), a connecting groove (904) is provided on one side of the top block (902), and slots (905) are provided on both sides of the inner wall of the connecting groove (904), and the locking assembly (11) is located in the connecting groove (904) and is engaged in the two slots (905).

4. The primary and secondary integrated pole-mounted circuit breaker according to claim 3, characterized in that: The locking assembly (11) includes two handles (111), which slide through the groove (12). A slider (112) is fixed at the bottom of the handle (111), and a locking rod (113) is fixed at the bottom of the slider (112). The locking rod (113) is slidably connected in the slide (10) and is engaged in the slot (905).

5. A primary and secondary integrated pole-mounted circuit breaker according to claim 4, characterized in that: The end of the lever (113) is L-shaped, and the part of the lever (113) embedded in the slot (905) is adapted to the shape of the slot (905). The slider (112) is fitted with a slide rod (115), which is fixed on both sides of the inner wall of the groove (12). The slide rod (115) is fitted with a second spring (114), and the two ends of the second spring (114) are fixed on one side of the slider (112) and the inner wall of the groove (12), respectively.

6. A primary and secondary integrated pole-mounted circuit breaker according to claim 5, characterized in that: The mounting assembly (15) includes a bidirectional lead screw (151), bearings (152) are respectively installed on both sides of the bidirectional lead screw (151), the two bearings (152) are respectively snapped into both sides of the mounting base (13), nuts (153) are respectively threaded to both sides of the bidirectional lead screw (151), a slide bar (154) is fixed to the outside of the nut (153), and a mounting block (155) is fixed to the bottom of the slide bar (154). The mounting block (155) is L-shaped and slides through the slide hole (16).

7. A primary and secondary integrated pole-mounted circuit breaker according to claim 6, characterized in that: The anti-deviation assembly (18) includes an ear plate (181), a rotating handle (182) is fixed on one side of the ear plate (181), and a gear (183) is fixedly connected to the other side of the ear plate (181). The gear (183) is engaged in the gear ring (17). A sliding block (184) is provided in the middle of the gear (183), and the sliding block (184) is fixed to the ear plate (181). The sliding block (184) is slidably connected in the sliding groove (19), and the cross-sectional shape of the sliding block (184) is T-shaped. A third spring (185) is fixedly connected between the sliding block (184) and the inner wall of the sliding groove (19).

8. A method of using a primary and secondary integrated pole-mounted circuit breaker, as described in claim 7, characterized in that, The method of use includes the following steps: When installing the primary and secondary integrated pole-mounted circuit breaker, move the mounting base (13) to the installation position so that the support plate (14) at the bottom of the mounting base (13) contacts the mounting base surface. At this time, the four mounting blocks (155) are respectively located in the preset L-shaped grooves on the mounting base surface. By holding the handle (182) and pulling it to one side, the ear plate (181) drives the gear (183) and the sliding block (184) to move. The sliding block (184) is in the sliding groove (155). 9) During the internal sliding process, the gear (183) can disengage from the gear ring (17), that is, release the locking state of the double-acting screw (151). Then, the rotating handle (182) drives the sliding block (184) to rotate through the ear plate (181). Since the cross-sectional shape of the sliding block (184) is T-shaped and slides in the sliding groove (19), the sliding block (184) can drive the double-acting screw (151) to rotate outside the two bearings (152) through the sliding groove (19). During the rotation of the bidirectional screw (151), the two nuts (153) can drive the two slide bars (154) to move away from each other, so that the slide bars (154) drive the bottom mounting block (155) to move and be inserted into the L-shaped groove on the mounting base, so as to achieve the purpose of installing the primary and secondary integrated pole-mounted circuit breaker. Moreover, the mounting block (155) is limited by the sliding hole (16), which improves the stability of the horizontal movement of the mounting block (155). Then, the handle (182) is released, and the sliding block (184) is driven to move inside the sliding groove (19) by the pulling force of the third spring (185). The sliding block (184) then drives the gear (183) to approach the mounting base (13) through the ear plate (181), so that the gear (183) can be inserted into the inner wall of the gear ring (17). The ear plate (181) is locked by the gear engagement, so that the bidirectional screw (151) will not rotate freely. When the isolating switch (4) and the post insulation assembly (9) are disconnected, by squeezing the two handles (111), the two sliders (112) are driven to move closer to each other, so that the sliders (112) can slide outside the slide rod (115) and squeeze the second spring (114). At the same time, the sliders (112) can drive the locking rod (113) to disengage from the slot (905), thereby releasing the locking state between the moving contact (8) and the stationary contact (903). Lifting the two handles (111) causes the moving contact (8) to move and disengage from the stationary contact (903) and the top block (902) on the post insulator (901). Then, by operating the insulator (601) The first spring (606) inside supports the slide column (604), so that the slide column (604) lifts the isolating switch (4) through the pin (605), and the bottom end of the operating insulator (601) rotates outside the rotating shaft (7) through the rotating sleeve (602), while the end of the isolating switch (4) rotates inside the hinge seat (5). Therefore, after releasing the two handles (111), the isolating switch (4) drives the moving contact (8) to deflect. When the isolating switch (4) is not under force, the moving contact (8) and the stationary contact (903) are always separated, preventing the isolating switch (4) from deflecting and contacting the stationary contact (903) due to external force. When the isolating switch (4) and the post insulation assembly (9) are connected, the moving contact (8) or the isolating switch (4) is pressed down, causing the top of the isolating switch (4) to rotate inside the hinge seat (5). The moving contact (8) at the bottom of the isolating switch (4) then approaches the top block (902) on the post insulator (901), and the two locking rods (113) on the moving contact (8) move into the connecting groove (904). Because the ends of the locking rods (113) are L-shaped, the two locking rods (113) will approach each other after being pressed. When the moving contact (8) is in close contact with the stationary contact (903) on the top block (902), the second spring (114) supports the slider (112), causing the slider (112) to drive the locking rod (113) into the slot (905), thereby locking the stationary contact (903) and the moving contact (8) to prevent the stationary contact (903) and the moving contact (8) from separating due to external force collision, and ensuring the connection stability between the stationary contact (903) and the stationary contact (903).

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