Primary and secondary integrated pole mounted circuit breaker

Abstract

The present invention discloses a primary and secondary integrated pole-mounted circuit breaker, which comprises: a housing, a plurality of arc extinguishing chambers, a closing and opening mechanism, an opening mechanism, a deceleration assembly and an operating mechanism; the deceleration assembly comprises a centrifugal member driven to rotate by a slide, the centrifugal member has a centrifugal chamber, a lock core and a plurality of circumferentially evenly distributed friction members are arranged in the centrifugal chamber, the lock core can rotate relative to the centrifugal chamber and has a push rod with one end extending out of the centrifugal chamber, a plurality of friction members abut against the surface of the lock core and are displaced radially away from the lock core when the centrifugal member rotates; wherein the push rod always has a movement tendency to displace toward one side of a friction disk, and a release channel for the push rod to penetrate and slide is provided on the friction disk. The present invention quickly limits the movement of the slide, converts the kinetic energy of the lateral movement of the slide into the internal energy generated by the friction inside the centrifugal chamber, and reduces the impact of the slide on the components inside the housing.

Description

Technical Field

[0001] The present invention relates to the technical field of pole-mounted circuit breakers, and in particular to a primary-secondary integrated pole-mounted circuit breaker. Background Art

[0002] The primary and secondary circuits are integrated into a set of pole-mounted circuit breaker equipment. The primary circuit is the main circuit, and the secondary circuit is the primary control. The primary circuit is composed of electrical equipment that directly participates in the manufacture, transmission, conversion, and use of electric energy. The secondary circuit refers to a circuit formed by connecting the equipment that protects, measures, controls, and meters the primary circuit equipment according to a certain logical relationship. It is widely used in the segmentation and communication functions of 10kv distribution network trunk lines.

[0003] The circuit breaker opening operation is divided into manual opening and automatic electric control opening. When the circuit breaker is performing manual opening operation, the opening elastic member is usually used to drive the slide to move, and the slide moves the movable conductive rod in the arc extinguishing chamber to separate it from the fixed conductive rod to achieve the opening operation. In the specific implementation, when the opening elastic member pushes the slide to move, since the slide has a certain speed, when the slide moves to the specified position to achieve opening, it cannot be braked quickly due to inertia, resulting in a large impact force on the slide at the end of the closing, which is easy to cause damage to the components inside the circuit breaker and affect the service life of the equipment. Summary of the invention

[0004] Based on this, it is necessary to provide a primary and secondary fusion pole-mounted circuit breaker to address the above technical problems. The centrifugal force is used to move the friction parts in the centrifugal chamber outward and away from the lock core. When the slide moves to the set position, the rotation speed of the centrifugal chamber is reduced to a stop. During this process, the reset spring will push the friction parts to fit onto the lock core, and use the friction between multiple friction parts and the outer ring of the lock core to stop the movement of the centrifugal chamber, and limit the movement of the slide after it moves to the specified position and stays in a stationary state, thereby preventing it from being pulled backward by the opening elastic part, so that the slide can be stably locked in position and its wear can be reduced.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A primary and secondary integrated pole mounted circuit breaker, comprising:

[0007] Box;

[0008] A plurality of arc extinguishing chambers are installed on the box body, wherein the arc extinguishing chambers include a conductive rod assembly;

[0009] The closing and opening mechanism is arranged in the box body and is used to drive the conductive rod assembly to move away from or close to one side of the arc extinguishing chamber. The closing and opening mechanism includes a sliding seat and an opening elastic member that always forces the sliding seat to have a tendency to move in the opening direction;

[0010] The opening mechanism is arranged in the box and connected to the closing and opening mechanism, and is used to limit the displacement of the slide seat in the opening direction;

[0011] A deceleration assembly, the deceleration assembly comprising a centrifugal member driven to rotate by a slide, the centrifugal member having a centrifugal chamber therein, a lock core and a plurality of circumferentially evenly distributed friction members disposed in the centrifugal chamber, the lock core being rotatable relative to the centrifugal chamber and having a push rod with one end extending out of the centrifugal chamber, the plurality of friction members abutting against a surface of the lock core and being displaced radially away from the lock core when the centrifugal member rotates; and

[0012] An operating mechanism, the operating mechanism comprising a release member for driving the brake opening mechanism and a friction disk rotatably connected to the release member;

[0013] Among them, the push rod always has a movement tendency to move toward one side of the friction disk, the friction disk has a first position and a second position for the end of the push rod to abut, and the friction disk is provided with a release channel for the push rod to pass through and slide; when in the open state, the push rod moves from the first position to the second position through the release channel.

[0014] As a preferred embodiment of the primary and secondary fusion column mounted circuit breaker provided by the present invention, a plurality of slide grooves are separately arranged in the centrifugal chamber, the friction member is arranged in the slide groove and a reset elastic member is also arranged in the slide groove to always force the friction member to move toward one side of the lock core.

[0015] As a preferred embodiment of the primary-secondary integrated column-mounted circuit breaker provided by the present invention, the lock core has a first guide surface, and the friction member has a second guide surface that conflicts with the first guide surface; wherein the centrifugal chamber is also provided with a lifting elastic member that always forces the lock core to move toward one side of the friction disk, and when the lock core is displaced toward one side of the friction disk, the contact area between the first guide surface and the second guide surface gradually decreases.

[0016] As a preferred embodiment of the primary-secondary integrated column mounted circuit breaker provided by the present invention, a driving rack is provided on one side of the sliding seat, and the centrifugal member includes centrifugal teeth meshing with the driving rack.

[0017] As a preferred embodiment of the primary-secondary integrated pole-mounted circuit breaker provided by the present invention, the release member includes a release tooth rotatably connected to the box body, and the outer peripheral surface of the friction disk is provided with friction teeth meshing with the release tooth.

[0018] As a preferred embodiment of the primary-secondary integrated pole-mounted circuit breaker provided by the present invention, the operating mechanism also includes: a closing and opening control rod, which is connected to the release tooth; wherein one end of the closing and opening control rod extends out from the box body and the end is connected to a closing and opening control switch member.

[0019] As a preferred embodiment of the primary-secondary integrated pole-mounted circuit breaker provided by the present invention, the opening mechanism includes: a limit buckle, one end of which is rotatably connected to the box body; and a tension spring, one end of which is connected to the box body, and the other end is connected to the limit buckle; wherein a fixed buckle is provided at one end of the slide seat, and when in the closed state, the fixed buckle is clamped with the limit buckle.

[0020] As a preferred embodiment of the primary-secondary integrated pole-mounted circuit breaker provided by the present invention, the operating mechanism also includes: a release rod, which is slidably connected to the box body and can act on the limit buckle to disengage it from the fixed buckle, and a control rack is provided on one side of the release rod; wherein the release member also includes a control tooth meshed with the control rack, and the control tooth rotates synchronously with the release tooth.

[0021] As a preferred embodiment of the primary-secondary integrated pole-mounted circuit breaker provided by the present invention, one end of the release rod is arranged as an arc guide surface, and one end of the limit buckle has a wedge-shaped extrusion surface which conflicts with the arc guide surface; when the release rod slides toward one side of the opening mechanism, the arc guide surface slides relative to the wedge-shaped extrusion surface and forces the limit buckle to swing away from the fixed buckle.

[0022] As a preferred embodiment of the primary-secondary fused pole-mounted circuit breaker provided by the present invention, the closing and opening mechanism also includes a first pushing block arranged on the sliding seat, the conductive rod assembly includes a conductive rod and a second pushing block connected thereto, the first pushing block has a first wedge-shaped surface, and the second pushing block has a second wedge-shaped surface; wherein, when the sliding seat slides, the first wedge-shaped surface and the second wedge-shaped surface undergo relative extrusion and sliding to force the conductive rod to move away from / closer to one side of the arc extinguishing chamber.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] When the opening mechanism is unlocked under the action of the operating mechanism, the opening elastic member drives the slide to move. The centrifugal member in the deceleration assembly rotates at high speed, causing the multiple friction members placed in the centrifugal member to undergo centrifugal movement. Combined with the action of the lifting elastic member, the lock core is pushed away from one side of the centrifugal chamber, and the contact area between the lock core and the friction member is gradually reduced until the two are completely separated. In the process of sliding the push rod from the first position through the unlocking channel to the second position by the rotation of the friction disk, the push rod is pushed back into the centrifugal chamber and gradually reduces the distance between the lock core and the friction member until the two are in contact, thereby decelerating the centrifugal member and locking the centrifugal member to rotate. After the centrifugal member is locked and rotated, the slide is locked synchronously, thereby achieving buffering of the opening process, reducing the impact of the slide on the internal components of the box, and protecting the internal components. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A front view of the pole mounted circuit breaker provided by the present invention;

[0027] Figure 2 A schematic diagram of the structure of a pole-mounted circuit breaker provided by the present invention;

[0028] Figure 3 A schematic diagram of the internal structure of the box provided by the present invention;

[0029] Figure 4 A front view of the internal structure of the box provided by the present invention;

[0030] Figure 5 The present invention provides Figure 4 Enlarged view of point A in the middle;

[0031] Figure 6 A schematic diagram of the structure of the slide and the deceleration assembly provided by the present invention;

[0032] Figure 7 A cross-sectional view of a retarder assembly is provided for the present invention;

[0033] Figure 8 Provides a schematic diagram of the internal structure of a deceleration component for the present invention;

[0034] Fig. 9 A schematic diagram of the state of the push rod and the release channel provided by the present invention when they are connected;

[0035] Fig.10 A schematic diagram of the positional relationship between the ejector rod and the unlocking channel provided by the present invention.

[0036] The markings in the figure are as follows:

[0037] 1. Arc extinguishing chamber; 2. Box body; 3. Disconnection elastic member; 4. Limiting buckle; 41. Wedge-shaped extrusion surface; 5. Sliding seat; 6. Conductive rod assembly; 7. First push block; 8. Disconnection and closing control rod; 9. Friction disk; 10. Fixed buckle; 11. Release rod; 12. Tension spring; 13. Control rack; 14. Centrifugal tooth; 15. Drive rack; 16. Release tooth; 17. Centrifugal chamber; 18. Push rod; 19. Lock core; 20. Lifting elastic member; 21. Friction member; 22. Reset spring; 23. Release channel; 24. Guide rod; 25. Disconnection and closing control switch member. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0039] Please refer to Figures 1 to 10 The primary and secondary integrated pole-mounted circuit breaker comprises a box body 2, a plurality of arc extinguishing chambers 1 connected to the box body 2, and a closing and opening mechanism, an opening mechanism, a retarding assembly and an operating mechanism arranged in the box body 2. The arc extinguishing chamber 1 comprises a conductive rod assembly 6 with one end extending outward. The closing and opening mechanism is used to drive the conductive rod assembly 6 to move away from or close to one side of the arc extinguishing chamber 1 to achieve the closing and opening action. The opening mechanism is connected to the closing and opening mechanism to lock / unlock the displacement of the closing and opening mechanism. The operating mechanism is connected to the opening mechanism to drive the opening mechanism to act.

[0040] The closing and opening mechanism includes a slide 5 and an opening elastic member 3 that always forces the slide 5 to move in the opening direction, a first pushing block 7 on the slide 5, and the conductive rod assembly 6 includes a conductive rod and a second pushing block connected to the end of the conductive rod. The first pushing block 7 has a first wedge surface, and the second pushing block has a second wedge surface. When the slide 5 slides, the first wedge surface and the second wedge surface are squeezed and slid relative to each other, forcing the conductive rod to move away from / close to one side of the arc extinguishing chamber 1 to achieve the closing and opening action.

[0041] The deceleration component is connected to the closing and opening mechanism and acts on the slide 5 to decelerate the slide when it slides. The deceleration component is a centrifugal component driven to rotate by the slide 5, and the centrifugal component has a centrifugal chamber 17, and a lock core 19 and a plurality of friction components 21 evenly distributed in the circumferential direction are arranged in the centrifugal chamber 17. A plurality of slide grooves are arranged in the centrifugal chamber 17, and the friction component 21 is arranged in the slide groove, and a reset elastic component is also arranged in the slide groove to always force the friction component 21 to move toward the lock core 19. The centrifugal chamber 17 can rotate relative to the lock core 19, and the lock core 19 has a push rod 18 with one end extending out of the centrifugal chamber 17, and the push rod 18 is slidably connected to the box body and limits the circumferential rotation of the cable core 19. The reset elastic component can push the friction component 21 to move along the slide groove and move close to the lock core 19, so that the lock core 19 and the friction component 21 are in conflict with each other to lock the rotation of the cable core 19.

[0042] The cross section of the lock core 19 is a reduced diameter structure and has a first guide surface. The end of the lock core 19 with a larger diameter is connected to the push rod 18. The friction member 21 has a second guide surface that conflicts with the first guide surface; wherein the centrifugal chamber 17 is also provided with a lifting elastic member 20 that always forces the lock core 19 to move toward the side of the friction disk 9. The lifting elastic member 20 can push the lock core 19 to move away from the centrifugal chamber 17. When the lock core 19 moves away from the side of the centrifugal chamber 17, the contact area between the first guide surface and the second guide surface gradually decreases and finally separates the two. The contact area between the first guide surface and the second guide surface is gradually reduced or increased by controlling the lateral movement of the lock core 19, thereby changing the friction force between the friction member 21 and the lock core 19.

[0043] like Fig. 9 As shown in Figure A, when the contact area between the first guide surface and the second guide surface increases, the friction between the friction member 21 and the lock core 19 increases. Since the lock core 19 is connected to the housing and is restricted from circumferential rotation, the greater friction between the friction member 21 and the lock core 19 can suppress the rotation of the centrifugal chamber 17.

[0044] like Fig. 9 As shown in FIG. B, when the contact area between the first guide surface and the second guide surface is reduced and the friction member 21 and the lock core 19 are separated under the action of the rotating centrifugal force, the centrifugal chamber 17 can rotate freely.

[0045] The slide 5 is also provided with a driving rack 15 of a certain length at the bottom, and the centrifugal member also includes a centrifugal tooth 14 meshing with the driving rack 15, and the centrifugal tooth 14 is connected to the centrifugal chamber 17, so that the rotation of the centrifugal tooth 14 on the driving rack 15 can drive the rotation of the centrifugal chamber 17, and the movement of the slide 5 can also be limited when the centrifugal member stops rotating.

[0046] The opening mechanism includes a limit buckle 4 and a tension spring 12, one end of the limit buckle 4 is rotatably connected to the box body 2; one end of the tension spring 12 is connected to the box body 2, and the other end is connected to the limit buckle 4; wherein, a fixed buckle 10 is provided at one end of the slide 5, and when in the closed state, the fixed buckle 10 is engaged with the limit buckle 4. When controlling the closing operation of the slide 5, the fixed buckle 10 at the end of the slide 5 will be engaged with the buckle at the end of the limit buckle 4, and the limit buckle 4 is pulled by the tension spring 12 to be tightly engaged with the fixed buckle 10 to prevent it from being disengaged.

[0047] The operating mechanism includes a closing and opening control rod 8, a closing and opening control switch 25, a friction plate 9 and a release member. One end of the closing and opening control rod 8 extends out of the housing 2 and is connected to the closing and opening control switch 25. The release member includes a release tooth 16. The other end of the closing and opening control rod 8 is connected to the release tooth 16. The closing and opening control rod 8, the closing and opening control switch 25 and the release tooth 16 can rotate synchronously.

[0048] The friction disc 9 is rotatably connected in the housing 2, and its outer peripheral wall has teeth meshing with the release teeth 16, so that the rotation of the closing and opening control switch 25 can drive the rotation of the friction disc 9 through the release teeth 16. At the same time, the friction disc 9 is placed on one side of the centrifugal member, and the end of the push rod 18 is in conflict with the friction disc 9, and the push rod 18 always has a movement tendency to move toward one side of the friction disc 9 under the action of the lifting elastic member 20.

[0049] like Fig.10 As shown, the friction disc 9 has a first position A and a second position D for the end of the push rod 18 to abut against, and a release channel 23 is provided between the first position A and the second position D, and the depth of the release channel 23 gradually decreases from the first position A toward the second position D. When the friction disc 9 rotates, the end of the push rod 18 can slide from the abutment with the first position A to the release channel 23 and then slide from the release channel 23 to the second position D. The push rod 18 reciprocates between the first position A and the second position D, thereby pushing the lock core 19 to move away from / close to one side of the centrifugal chamber 17.

[0050] The operating mechanism further includes a release rod 11, which is slidably connected in the box body 2 and can act on the limit buckle 4 to disengage it from the fixed buckle 10. A control rack 13 is provided on one side of the release rod 11, and a release tooth 16 is meshed with the control rack 13. One end of the release rod 11 is provided as an arc guide surface, and one end of the limit buckle 4 has a wedge-shaped extrusion surface 41 that conflicts with the arc guide surface. The release tooth 16 is driven to rotate by the closing and opening control rod, thereby driving the release rod 11 to move laterally. When the release rod 11 moves close to the limit buckle 4, the arc guide surface slides against the wedge-shaped extrusion surface 41 and forces the limit buckle 4 to swing away from the fixed buckle 10 to disengage from the fixed buckle 10 and complete the opening operation of the opening mechanism.

[0051] When the circuit breaker is manually opened, the closing and opening control switch 25 is rotated to drive the closing and opening control rod 8 to rotate and drive the release tooth 16 to rotate. The rotation of the release tooth 16 drives the release rod 11 to move close to the limit buckle 4. When the fixed buckle 10 is separated from the limit buckle 4, the closing and opening mechanism is in an unlocked state. There is a certain distance between the first position A on the friction disk and the point B of the release channel 23. At this distance, the path distance required for the opening mechanism to be unlocked is just sufficient.

[0052] When the friction disc 9 continues to rotate, the push rod 18 is placed at point B of the unlocking channel 23. At this time, the gate-opening elastic member 3 drives the slide 5 to slide, and the slide 5 drives the centrifugal member to rotate. Since the gate-opening elastic member 3 has a certain elastic stiffness, it can quickly drive the centrifugal member to rotate when releasing the elastic potential energy. At this time, the multiple friction members 21 in the centrifugal chamber 17 move along the slide groove away from the lock core 19 due to the centrifugal force, and the lock core 19 is pushed outward under the action of the lifting elastic member 20 and causes the end of the push rod 18 to contact the unlocking channel 23. The first guide surface of the lock core 19 and the second guide surface of the friction member 21 gradually change from contact to separation. The centrifugal member rotates rapidly during the process to realize the rapid gate opening operation. In the process of designing the unlocking channel 23, the unlocking channel 23 has a certain length. When the push rod 18 slides from point B to point C, the centrifugal member is slowed down while the gate is closed, and when the push rod 18 slides from point B of the unlocking channel 23 to the second position point D, the rotation of the centrifugal member is completely locked.

[0053] As the push rod 18 gradually moves toward the centrifugal chamber 17, the distance between the first guide surface of the cable core 19 and the second guide surface of the friction member 21 gradually decreases until the two collide with each other. At this time, the centrifugal member suppresses the rotation speed through the friction between the cable core 19 and multiple friction members 21. The friction member 21 is reset toward one side of the cable core 19 under the action of the reset spring 22. Finally, when the push rod 18 slides to the second position D, the entire cable core 19 is pushed to the deepest part of the centrifugal chamber 17, and finally the rotation of the centrifugal member is locked by the friction between the cable core 19 and multiple friction members 21, completing the locking action. During the whole process, the sliding speed of the slide seat 5 gradually slows down from fast to slow to achieve buffering, effectively reducing the impact force during the opening process to protect the components in the circuit breaker.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A primary and secondary integrated pole mounted circuit breaker, characterized in that: It includes: Box (2); A plurality of arc extinguishing chambers (1) are mounted on a box body (2), wherein the arc extinguishing chambers (1) include a conductive rod assembly (6); A closing and opening mechanism is arranged in the box body (2) and is used to drive the conductive rod assembly (6) to move away from or toward one side of the arc extinguishing chamber (1), and the closing and opening mechanism comprises a slide seat (5) and an opening elastic member (3) that always forces the slide seat (5) to have a tendency to move in the opening direction; The opening mechanism is arranged in the box body (2) and connected to the closing and opening mechanism, and is used to limit the displacement of the sliding seat (5) in the opening direction; A deceleration component, the deceleration component comprising a centrifugal member driven to rotate by a slide seat (5), the centrifugal member having a centrifugal chamber (17) therein, a lock core (19) and a plurality of friction members (21) uniformly distributed in the circumferential direction arranged in the centrifugal chamber (17), the centrifugal chamber (17) being capable of rotating relative to the lock core (19), the lock core (19) having a push rod (18) with one end extending out of the centrifugal chamber (17), the plurality of friction members (21) being in contact with the surface of the lock core (19), and the friction members (21) being displaced in radial position away from the lock core (19) when the centrifugal member rotates; as well as An operating mechanism, the operating mechanism comprising a release member for driving the brake opening mechanism and a friction disk (9) rotatably connected to the release member; The push rod (18) always has a movement tendency to move toward one side of the friction disk (9), the friction disk (9) has a first position and a second position for the end of the push rod (18) to abut against, and the friction disk (9) is provided with a release channel (23) for the push rod (18) to pass through and slide; when in the open state, the push rod (18) moves from the first position to the second position through the release channel (23).

2. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: A plurality of slide grooves are separately arranged in the centrifugal chamber (17), the friction member (21) is arranged in the slide groove, and a reset elastic member is also arranged in the slide groove to always force the friction member (21) to move toward one side of the lock core (19).

3. The primary and secondary integrated pole mounted circuit breaker according to claim 1 or 2, characterized in that: The lock core (19) has a first guide surface, and the friction member (21) has a second guide surface that conflicts with the first guide surface; The centrifugal chamber (17) is further provided with a lifting elastic member (20) which always forces the lock core (19) to move toward one side of the friction disk (9); when the lock core (19) is displaced toward one side of the friction disk (9), the contact area between the first guide surface and the second guide surface gradually decreases.

4. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: A driving rack (15) is provided on one side of the slide seat (5), and the centrifugal member comprises centrifugal teeth (14) meshing with the driving rack (15).

5. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: The release member comprises a release tooth (16) rotatably connected to the box body (2), and the outer peripheral surface of the friction disc (9) is provided with a friction tooth meshing with the release tooth.

6. The primary and secondary integrated pole mounted circuit breaker according to claim 5, characterized in that: The operating mechanism also includes: A closing and opening control rod (8), the closing and opening control rod (8) being connected to a release tooth (16); wherein one end of the closing and opening control rod extends out from the box body (2) and the end is connected to a closing and opening control switch element (25).

7. The primary and secondary integrated pole mounted circuit breaker according to claim 5, characterized in that: The opening mechanism comprises: A limit buckle (4), one end of which is rotatably connected to the box body (2); and a tension spring (12), one end of the tension spring (12) being connected to the box body (2), and the other end of the tension spring (12) being connected to the limit buckle (4); Wherein, a fixing buckle (10) is provided at one end of the slide seat (5), and when in a closed state, the fixing buckle (10) is engaged with the limit buckle (4).

8. The primary and secondary integrated pole mounted circuit breaker according to claim 7, characterized in that: The operating mechanism also includes: a release rod (11), the release rod (11) being slidably connected to the box body (2) and being capable of acting on the limiting buckle (4) to disengage it from the fixing buckle (10), and a control rack (13) being disposed on one side of the release rod (11); Wherein, the release tooth (16) is meshed with the control rack (13).

9. The primary and secondary integrated pole mounted circuit breaker according to claim 8, characterized in that: One end of the release rod (11) is provided as an arc guide surface, and one end of the limit buckle (4) has a wedge-shaped pressing surface (41) that contacts the arc guide surface; when the release rod (11) slides toward one side of the gate opening mechanism, the arc guide surface slides relative to the wedge-shaped pressing surface (41) and forces the limit buckle (4) to swing away from one side of the fixed buckle (10).

10. The primary and secondary integrated pole mounted circuit breaker according to claim 1, characterized in that: The closing and opening mechanism further comprises a first pushing block (7) arranged on the sliding seat (5); the conductive rod assembly (6) comprises a conductive rod and a second pushing block connected thereto; the first pushing block (7) has a first wedge-shaped surface, and the second pushing block has a second wedge-shaped surface; wherein, when the sliding seat (5) slides, the first wedge-shaped surface and the second wedge-shaped surface slide relative to each other in a squeeze manner, forcing the conductive rod to move away from or close to one side of the arc extinguishing chamber (1).

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