A standardized pole-mounted circuit breaker with deep integration of primary and secondary circuits

Abstract

The present invention discloses a standardized pole-mounted circuit breaker with deep integration of primary and secondary circuits, belonging to the technical field of circuit breakers. A standardized pole-mounted circuit breaker with deep integration of primary and secondary circuits comprises an operating box, a sealed pole, a three-stage linkage disconnector and a current transformer, wherein the sealed pole is installed above the operating box, and a wiring terminal is provided on the top of the sealed pole. In order to solve the problem that the sensor element is easily interfered by the electric field inside the circuit breaker when transmitting the signal during the opening and closing process of the vacuum circuit breaker, thereby causing the signal transmission efficiency to decrease, a shielding material with a multi-layer structure is used to shield electromagnetic waves in low-frequency and high-frequency bands well, reduce the interference of external electromagnetic waves on the vacuum circuit breaker, and filter the digital signal, which can stably, accurately and effectively filter out the interference of electromagnetic pulses, enhance the anti-electromagnetic interference ability of the intelligent circuit breaker, prevent the intelligent circuit breaker from making wrong judgments, and ensure production safety.

Description

Technical Field

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

[0002] With the development of power grid, digitalization, integration, miniaturization and intelligence are the main directions of power grid development. Primary and secondary equipment are highly integrated to meet the requirements of segmented line loss management, local feeder automation, single-phase grounding fault detection, device-level interchange, factory maintenance, plug-and-play and automated testing, and solve the problems of insulation coordination, electromagnetic compatibility and life matching of complete sets of equipment.

[0003] A Chinese patent with publication number CN211016890U discloses a primary-secondary fused outdoor solid-sealed pole. By adding a high-voltage shielding mesh structure to the moving end of the arc extinguishing chamber, the curvature of the electric field is increased, the electric field strength and corona effect are reduced, and the problem of local discharge is solved. Due to the use of a shielding structure, a uniform electric field is achieved in a limited space, the electric field strength is reduced, the power frequency withstand voltage level is improved, and the local discharge level is controlled, so as to meet the technical requirements of the product and achieve miniaturization.

[0004] In the above patent, 1) during the closing process of the vacuum circuit breaker, the moving contact has a reasonable closing speed. At the moment of closing, the moving contact and the static contact collide elastically, the contact disconnection interval is small, and the arc will not stop, resulting in increased electrical wear of the contact, which in turn affects the electrical life of the arc extinguishing chamber;

[0005] 2) During the opening and closing process of a traditional vacuum circuit breaker, the sensor element is easily interfered by the electric field inside the circuit breaker when transmitting signals, resulting in a decrease in signal transmission efficiency. Summary of the invention

[0006] The purpose of the present invention is to provide a standardized pole-mounted circuit breaker with deep integration of primary and secondary. The sliding position rotation groove adopts a wave-shaped design. When the displacement shaft moves, it can drive the hollow sliding shaft to rotate counterclockwise through the sliding position rotation groove, and the locking disk rotates together. The locking block is engaged with the help of a movable locking hole. In this way, the locking contact and the locking contact can be locked at the moment of closing the circuit to prevent the contacts from bouncing, which can solve the problems in the prior art.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a standardized pole-mounted circuit breaker with deep integration of primary and secondary, comprising an operating box, a sealed pole, a three-stage linkage disconnector and a current transformer, wherein the sealed pole is installed above the operating box, a wiring terminal is arranged on the top of the sealed pole, a transfer terminal is arranged on one side of the sealed pole, a metal lever is arranged on the outside of the transfer terminal, the current transformer is connected to the sealed pole through the transfer terminal, a ceramic bushing is arranged inside the sealed pole, a transmission rocker is arranged below the ceramic bushing, the ceramic bushing comprises a sensing air cavity and a working cavity, three sensing air cavities are on the outside of the working cavity, a buffer spring is arranged on the outside of the transmission rocker, and a guide rod is arranged inside the transfer terminal.

[0008] Preferably, an energy storage pull ring is provided on one side of the operating box, the energy storage pull ring is rotatably connected to the operating box, an operating handle is provided on one side of the energy storage pull ring, and an opening and closing indicator is provided on the other side of the energy storage pull ring.

[0009] Preferably, a shielding cylinder is provided inside the working chamber, a bellows is provided below the shielding cylinder, a static contact seat is provided inside the shielding cylinder, and a moving contact seat is provided below the static contact seat.

[0010] Preferably, a dynamic cover plate is provided at the bottom of the bellows, and the bellows is connected to the ceramic sleeve through the dynamic cover plate. A static end conductive block is provided above the shielding tube, and the static end conductive block is connected to the ceramic sleeve through a slot.

[0011] Preferably, a static conductive rod is arranged above the static contact seat, and the static contact seat is connected to the static end conductive block through the static conductive rod. A dynamic conductive rod is arranged below the dynamic contact seat, and the dynamic conductive rod passes through the corrugated tube and extends to the outside of the ceramic sleeve. An adapter hoop is arranged between the dynamic conductive rod and the transmission rocker.

[0012] Preferably, a first end buckle is provided on the inner side of one end of the shielding tube, and a second end buckle is provided on the inner side of the other end of the shielding tube, a dynamic support ring is provided inside the moving contact seat, the dynamic support ring is connected to the moving contact seat through a slot, a locking contact is provided on the outer surface of the moving contact seat, the locking contact is combined and connected with the moving contact seat, a locking block is provided on the outer surface of the locking contact, and the locking block and the locking contact are arranged as an integrated structure.

[0013] Preferably, a static support ring is provided inside the static contact seat, and the static support ring is connected to the static contact seat through a slot, a locking contact is provided on the outer surface of the static contact seat, and a retaining lock hole is provided on the outer surface of the locking contact, a locking disk is provided between the locking contact and the static support ring, and the locking disk is rotatably connected to the static contact seat.

[0014] Preferably, the locking contact is closely connected with the locking contact, the locking block extends to the inner side of the fixed lock hole, an integrated locking column is arranged on the inner side of the locking contact, a displacement shaft is arranged on the outer surface of the locking column, and a partition is arranged between the locking disk and the static support ring.

[0015] Preferably, the outer surface of the lock disk is provided with a movable lock hole, and the lock disk is meshed and connected with the lock block through the movable lock hole, and an integrated hollow sliding shaft is provided on the inner side of the lock disk, and a sliding rotation groove is provided on the inner wall of the hollow sliding shaft, and the lock column is installed inside the hollow sliding shaft, and the shifting shaft is connected to the hollow sliding shaft through the sliding rotation groove.

[0016] Preferably, a return spring is provided at one end of the lock column, the lock column is telescopically connected to the hollow sliding shaft through the return spring, the hollow sliding shaft extends to the interior of the static support ring, and the lock disk is rotatably connected to the static support ring through the hollow sliding shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, when the lock rotating contact is retracted, the inner lock column will move toward the inside of the hollow sliding shaft, and the displacement shaft on the surface of the lock column will move along the sliding displacement groove inside the hollow sliding shaft. The sliding displacement groove adopts a wave-shaped design. When the displacement shaft moves, it can drive the hollow sliding shaft to rotate counterclockwise through the sliding displacement groove, and the lock plate rotates together, and the locking block is engaged with the movable lock hole. In this way, the lock contact and the lock rotating contact can be locked at the moment of closing the switch to prevent the contacts from bouncing.

[0019] 2. The present invention utilizes a multi-layer shielding material to effectively shield electromagnetic waves in low-frequency and high-frequency bands, thereby reducing the interference of external electromagnetic waves on vacuum circuit breakers and filtering digital signals. It can stably, accurately and effectively filter out the interference of electromagnetic pulses, enhance the anti-electromagnetic interference capability of intelligent circuit breakers, and prevent the contacts from generating a large amount of metal vapor and liquid droplets during the arcing process, thereby contaminating the inner wall of the insulating shell, causing a decrease in insulation strength or generating flashover, improving the electric field distribution inside the vacuum arc chamber, and facilitating the miniaturization of the insulating shell of the vacuum arc chamber, absorbing part of the arc energy, and condensing arc products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall front view of the present invention;

[0021] Figure 2 It is a schematic diagram of the side cross-sectional structure of the solid-sealed pole of the present invention;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the solid-sealed pole of the present invention;

[0023] Figure 4It is a schematic diagram of the transmission rocker structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the shielding tube structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the shielding tube of the present invention;

[0026] Figure 7 It is a schematic diagram of the exploded structure of the static contact seat of the present invention;

[0027] Figure 8 It is a schematic diagram of the lock disk structure of the present invention.

[0028] In the figure: 1, operating box; 2, sealed pole; 4, current transformer; 101, operating handle; 102, energy storage pull ring; 103, opening and closing indicator; 201, terminal; 202, adapter terminal; 203, transmission rocker; 204, ceramic bushing; 205, static contact seat; 206, moving contact seat; 207, shielding cylinder; 208, bellows; 209, locking plate; 2021, metal rod; 2022, guide rod; 2023, adapter hoop; 2031, buffer spring; 2041, sensing air cavity; 20 42. Working chamber; 2051. Static conductive rod; 2052. Static end conductive block; 2053. Locking contact; 2054. Retention locking hole; 2055. Locking column; 2056. Displacement shaft; 2057. Static support ring; 2061. Dynamic conductive rod; 2062. Dynamic support ring; 2063. Buckle contact; 2064. Locking block; 2071. First end buckle; 2072. Second end buckle; 2081. Dynamic cover plate; 2091. Return spring; 2092. Hollow sliding shaft; 2093. Movable locking hole; 2094. Sliding rotation groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0030] In order to solve the problem that during the closing process of the vacuum circuit breaker, the moving contact has a reasonable closing speed, the moving contact and the static contact collide elastically at the moment of closing, the contact disconnection interval is small, the arc will not stop, resulting in increased electrical wear of the contact, and then affecting the electrical life of the arc extinguishing chamber; please refer to Figure 1-8 , this embodiment provides the following technical solutions:

[0031] A primary and secondary deep fusion standardized pole-mounted circuit breaker, comprising an operation box 1, a sealed pole 2, and a current transformer 4. The sealed pole 2 is installed above the operation box 1, and a voltage and current sensor structure is simultaneously installed on the inner side of the bottom of the sealed pole 2 to ensure deep fusion between the sensor and the circuit breaker and improve signal control efficiency. A wiring terminal 201 is arranged on the top of the sealed pole 2, and a transfer terminal 202 is arranged on one side of the sealed pole 2. A metal rod 2021 is arranged on the outside of the transfer terminal 202. The current transformer 4 is connected to the sealed pole 2 through the transfer terminal 202. A ceramic bushing 204 is arranged inside the sealed pole 2 to complete the connection and disconnection operations of the vacuum switch. A A transmission rocker 203 is arranged, and the ceramic sleeve 204 includes a sensing air cavity 2041 and a working cavity 2042. The three sensing air cavities 2041 are distributed on the outside of the working cavity 2042. A buffer spring 2031 is arranged on the outside of the transmission rocker 203. The sensing air cavity 2041 on the outside of the working cavity 2042 can be used as a space for installing a sensor, and can also effectively reduce the interference of signals during use. A guide rod 2022 is arranged inside the adapter terminal 202, and an energy storage pull ring 102 is arranged on one side of the operation box 1. The energy storage pull ring 102 is rotatably connected to the operation box 1, and an operating handle 101 is arranged on one side of the energy storage pull ring 102, and a switch-on and switch-off indicator 103 is arranged on the other side of the energy storage pull ring 102;

[0032] The operating mechanism closes the two contacts through the movement of the dynamic conductive rod 2061, completing the circuit connection. In order to make the contact resistance between the two contacts as small as possible and keep it stable, and to ensure that the arc extinguishing chamber has good mechanical strength when it is subjected to dynamic stable current, the vacuum switch is provided with a guide sleeve at one end of the dynamic conductive rod 2061, and a group of compression springs are used to maintain a rated pressure between the two contacts. When the vacuum switch breaks the current, the two contacts of the arc extinguishing chamber separate and an arc is generated between them, until the arc is extinguished when the current naturally passes through zero, thus completing the circuit breaking;

[0033] A shielding tube 207 is provided inside the working chamber 2042, and a bellows 208 is provided below the shielding tube 207. The bellows 208 of the vacuum interrupter is mainly responsible for ensuring that the moving electrode moves within a certain range and maintains a high vacuum for a long time, and is used to ensure that the vacuum interrupter has a high mechanical life. The bellows 208 of the vacuum interrupter is a thin-walled component made of stainless steel with a thickness of 0.1 to 0.2 mm. During the opening and closing process of the vacuum switch, the bellows 208 of the interrupter is subjected to expansion and contraction, and the cross section of the bellows 208 is subjected to variable stress, so the life of the bellows 208 should be determined according to the repeated expansion and contraction amount and the use pressure. The service life of the bellows 208 is related to the heating temperature of the working conditions. After the vacuum interrupter breaks a large short-circuit current, the residual heat of the conductive rod is transferred to the bellows 208, causing the temperature of the bellows 208 to rise. When the temperature reaches a certain level, the bellows 208 will be fatigued, affecting the service life of the bellows 208. In addition, the moving contact together with the moving conductive rod 2061 can move within a specified range. A static contact seat 205 is provided inside the shielding tube 207, and a moving contact seat 206 is provided below the static contact seat 205. A moving cover plate 2081 is provided at the bottom of the bellows 208. The bellows 208 is connected to the ceramic sleeve 206 through the moving cover plate 2081. 4 connection, a static end conductive block 2052 is arranged above the shielding cylinder 207, and the static end conductive block 2052 is connected to the ceramic sleeve 204 through a slot, a static conductive rod 2051 is arranged above the static contact seat 205, and the static contact seat 205 is connected to the static end conductive block 2052 through the static conductive rod 2051, and a dynamic conductive rod 2061 is arranged below the moving contact seat 206, and the moving conductive rod 2061 penetrates the corrugated tube 208 and extends to the outside of the ceramic sleeve 204, and a transfer hoop 2023 is arranged between the moving conductive rod 2061 and the driving rocker 203, and when the switch is closed, the moving conductive rod 2061 drives the moving contact seat 206 to move upward and contact with the static contact seat 205;

[0034] The contact diameter and opening distance have an important influence on the gap magnetic field and are directly related to the breaking performance of the arc extinguishing chamber. For a generator outlet circuit breaker with a rated voltage of 15kV, a rated current of 6300A, and a rated short-circuit breaking current of 80kA, when the contact diameter is 132mm and the opening distance is 11mm, the magnetic field of the contact gap should be at least 4.5mT / kA;

[0035] When the vacuum contact is working, a sinusoidal alternating current with a frequency of 50 Hz is passed through it, so it can be regarded as a low-frequency AC coil model. The magnetic field of the contact gap belongs to the magnetic quasi-static field (MQS), and the differential equation for magnetic field control is:

[0036]

[0037] Where t is time; H is magnetic field intensity A / m; D is electric flux density C / m 2 ; J is the current density A / m2 ;

[0038]

[0039] Where, E is the electric field intensity V / m; B is the magnetic induction intensity T;

[0040]

[0041] Where ρ is the free charge density C / m 3 ;

[0042]

[0043] As with the constant magnetic field, the relationship between E and B and the dynamic potential A and φ in the magnetic quasistatic field is as follows:

[0044]

[0045] Where A is the magnetic vector potential Wb / m; φ is the electric potential V;

[0046] And A and φ satisfy the differential equations respectively:

[0047]

[0048] Where, μ is the magnetic permeability of the medium H / m; ε is the dielectric constant of the dielectric F / m;

[0049] The magnetic quasistatic field can ignore the fluctuation of the electromagnetic field. The field and source have a transient correspondence under a constant magnetic field. The constant magnetic field solution method can be used to calculate A and φ when the current and charge distribution are known, and the magnetic field and electric field distributions can be obtained. The field quantity of the edges of the tetrahedral unit is used as the degree of freedom to be solved through the three-dimensional eddy current calculation module. According to the current density distribution of the calculation model, the spatial distribution of the magnetic vector potential vector A is solved using the Poisson equation and the magnetic vector potential continuity connection condition, and then the distribution of the magnetic induction intensity B and the magnetic field intensity H is inversely calculated;

[0050] A first end buckle 2071 is provided on the inner side of one end of the shielding tube 207, and a second end buckle 2072 is provided on the inner side of the other end of the shielding tube 207. The shielding tube 207 utilizes a multi-layer structure of shielding materials to effectively shield electromagnetic waves in low-frequency bands and high-frequency bands, thereby reducing the interference of external electromagnetic waves on the vacuum circuit breaker and filtering the digital signal. It can stably, accurately and effectively filter out the interference of electromagnetic pulses, enhance the anti-electromagnetic interference capability of the intelligent circuit breaker, and prevent the contacts from generating a large amount of metal vapor and liquid droplets during the arcing process, thereby contaminating the inner wall of the insulating shell, causing the insulation strength to decrease or generating flashover, improving the electric field distribution inside the vacuum arc chamber, and facilitating the miniaturization of the insulating shell of the vacuum arc chamber, absorbing part of the arc energy, and condensing the arc. The heat energy generated by the arc is mostly absorbed by the shielding system, which is beneficial to improving the dielectric recovery strength between the contacts. The greater the amount of arc generation absorbed by the shielding system, the greater the energy absorbed by the shielding system, which plays a good role in increasing the breaking capacity of the vacuum interrupter. The interior of the moving contact seat 206 is provided with a moving support ring 2062, and the moving support ring 2062 is connected to the moving contact seat 206 through a slot. The outer surface of the moving contact seat 206 is provided with a locking contact 2063, and the locking contact 2063 is combined with the moving contact seat 206. The outer surface of the locking contact 2063 is provided with a locking block 2064, and the locking block 2064 and the locking contact 2063 are set as an integrated structure. The interior of the static contact seat 205 is provided with a static support ring 2057, and the static support ring 2057 is provided with a locking block 2064. 057 is connected to the static contact seat 205 through a card slot, the outer surface of the static contact seat 205 is provided with a locking contact 2053, the outer surface of the locking contact 2053 is provided with a fixed locking hole 2054, a locking disk 209 is provided between the locking contact 2053 and the static support ring 2057, the locking disk 209 is rotatably connected to the static contact seat 205, the locking contact 2053 is fitted with the locking contact 2063, the locking block 2064 extends to the inner side of the fixed locking hole 2054, an integrated locking column 2055 is provided on the inner side of the locking contact 2053, and a displacement shaft 2056 is provided on the outer surface of the locking column 2055, a partition is provided between the locking disk 209 and the static support ring 2057, and a movable locking hole 2093 is provided on the outer surface of the locking disk 209. A gap is provided between the rotating contacts 2053. During the closing process, the maximum limit of the locking contact 2063 and the locking rotating contact 2053 will not affect the size of the gap. The lock disk 209 is meshed and connected with the lock block 2064 through the movable lock hole 2093. An integrated hollow sliding shaft 2092 is provided on the inner side of the lock disk 209. A sliding rotation groove 2094 is provided on the inner wall of the hollow sliding shaft 2092. The lock column 2055 is installed inside the hollow sliding shaft 2092. The displacement shaft 2056 is connected to the hollow sliding shaft 2092 through the sliding rotation groove 2094. A reset spring 2091 is provided at one end of the lock column 2055. The lock column 2055 is telescopically connected to the hollow sliding shaft 2092 through the reset spring 2091. The hollow sliding shaft 2092 extends to the inside of the static support ring 2057.The lock plate 209 is rotatably connected to the static support ring 2057 via a hollow sliding shaft 2092;

[0051] When the switch is closed, the locking contact 2063 on the surface of the moving contact seat 206 fits with the locking contact 2053 on the surface of the static contact seat 205. During this process, the moving contact seat 206 can press the locking contact 2053 into the groove on the surface of the static contact seat 205. After the impact force disappears, it will automatically reset and pop out of the groove. During this process, the locking block 2064 on the surface of the locking contact 2063 will extend to the fixed locking hole 2054 on the surface of the locking contact 2053 and the movable locking hole 2093 on the surface of the lock plate 209. When the locking contact 2053 contracts, the inner locking column 2055 will move toward the inside of the hollow sliding shaft 2092, and the displacement shaft 2056 on the surface of the locking column 2055 will move along the sliding rotation groove 2092 inside the hollow sliding shaft 2092. 94 moves, the sliding rotation groove 2094 adopts a wave-shaped design, and the displacement shaft 2056 can drive the hollow sliding shaft 2092 to rotate counterclockwise through the sliding rotation groove 2094 when moving, and the locking disk 209 rotates together, and the engagement operation of the locking block 2064 is completed with the help of the movable locking hole 2093, so that the locking contact 2063 and the locking contact 2053 can be locked at the moment of closing the switch to prevent the contacts from bouncing between each other. After the displacement shaft 2056 moves to the lowest limit of the sliding rotation groove 2094, it moves from bottom to top under the push of the reset spring 2091, and the locking disk 209 rotates clockwise to release the locking operation between the locking contact 2063 and the locking contact 2053.

[0052] Working principle: when closing the switch, the locking contact 2063 on the surface of the moving contact seat 206 fits with the locking contact 2053 on the surface of the static contact seat 205. During this process, the moving contact seat 206 can press the locking contact 2053 into the groove on the surface of the static contact seat 205. After the impact disappears, it will automatically reset and pop out of the groove. During this process, the locking block 2064 on the surface of the locking contact 2063 will extend to the fixed locking hole 2054 on the surface of the locking contact 2053 and the movable locking hole 2093 on the surface of the lock disk 209. When the locking contact 2053 contracts, the inner locking column 2055 will move toward the inside of the hollow sliding shaft 2092, and the displacement shaft 2056 on the surface of the locking column 2055 will follow the sliding rotation groove inside the hollow sliding shaft 2092. 2094 moves, and the sliding rotation groove 2094 adopts a wave-shaped design. When moving, the displacement shaft 2056 can drive the hollow sliding shaft 2092 to rotate counterclockwise through the sliding rotation groove 2094, and the locking disk 209 rotates together, and the engagement operation of the locking block 2064 is completed with the help of the movable locking hole 2093, so that the locking contact 2063 and the locking contact 2053 can be locked at the moment of closing the switch to prevent the contacts from bouncing. After the displacement shaft 2056 moves to the lowest limit of the sliding rotation groove 2094, it moves from bottom to top under the push of the reset spring 2091, and the locking disk 209 rotates clockwise to release the locking operation between the locking contact 2063 and the locking contact 2053.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A primary and secondary deep fusion standardized pole-mounted circuit breaker, comprising an operating box (1), a sealed pole (2) and a current transformer (4), characterized in that: The sealed pole (2) is installed above the operating box (1); a connection terminal (201) is arranged on the top of the sealed pole (2); a transfer terminal (202) is arranged on one side of the sealed pole (2); a metal lever (2021) is arranged outside the transfer terminal (202); the current transformer (4) is connected to the sealed pole (2) via the transfer terminal (202); a ceramic bushing (204) is arranged inside the sealed pole (2); a transmission rocker (203) is arranged below the ceramic bushing (204); the ceramic bushing (204) includes a sensing air cavity (201); 041) and a working chamber (2042), three sensing air chambers (2041) are distributed on the outside of the working chamber (2042), a buffer spring (2031) is arranged on the outside of the transmission rocker (203), and a guide rod (2022) is arranged inside the transfer terminal (202); a shielding cylinder (207) is arranged inside the working chamber (2042), a bellows (208) is arranged below the shielding cylinder (207), a static contact seat (205) is arranged inside the shielding cylinder (207), and a moving contact seat (206) is arranged below the static contact seat (205); A first end buckle (2071) is provided on the inner side of one end of the shielding tube (207), a second end buckle (2072) is provided on the inner side of the other end of the shielding tube (207), a dynamic support ring (2062) is provided inside the moving contact seat (206), the dynamic support ring (2062) is connected to the moving contact seat (206) via a slot, a locking contact (2063) is provided on the outer surface of the moving contact seat (206), the locking contact (2063) is combined and connected with the moving contact seat (206), a locking block (2064) is provided on the outer surface of the locking contact (2063), and the locking block (2064) and the locking contact (2063) are arranged as an integrated structure; a static support ring (2057) is arranged inside the static contact seat (205), and the static support ring (2057) and the static contact seat (205) are connected through a slot; a locking contact (2053) is arranged on the outer surface of the static contact seat (205), and a retaining lock hole (2054) is arranged on the outer surface of the locking contact (2053); a locking disk (209) is arranged between the locking contact (2053) and the static support ring (2057), and the locking disk (209) is rotatably connected to the static contact seat (2055).

2. A primary and secondary deep fusion standardized pole mounted circuit breaker according to claim 1, characterized in that: An energy storage pull ring (102) is provided on one side of the operating box (1), the energy storage pull ring (102) is rotatably connected to the operating box (1), an operating handle (101) is provided on one side of the energy storage pull ring (102), and an opening and closing indicator (103) is provided on the other side of the energy storage pull ring (102).

3. A primary and secondary deep fusion standardized pole mounted circuit breaker according to claim 1, characterized in that: A movable cover plate (2081) is provided at the bottom of the bellows (208), and the bellows (208) is connected to the ceramic sleeve (204) via the movable cover plate (2081). A static end conductive block (2052) is provided above the shielding cylinder (207), and the static end conductive block (2052) is connected to the ceramic sleeve (204) via a slot.

4. A primary and secondary deep fusion standardized pole mounted circuit breaker according to claim 1, characterized in that: A static conductive rod (2051) is arranged above the static contact seat (205), and the static contact seat (205) is connected to the static end conductive block (2052) via the static conductive rod (2051); a dynamic conductive rod (2061) is arranged below the dynamic contact seat (206), and the dynamic conductive rod (2061) penetrates the corrugated tube (208) and extends to the outside of the ceramic sleeve (204); and an adapter hoop (2023) is arranged between the dynamic conductive rod (2061) and the transmission rocker (203).

5. A primary and secondary deep fusion standardized pole mounted circuit breaker according to claim 1, characterized in that: The locking contact (2053) is fitted and connected with the locking contact (2063), the locking block (2064) extends to the inner side of the fixed locking hole (2054), an integrated locking column (2055) is arranged on the inner side of the locking contact (2053), a displacement shaft (2056) is arranged on the outer surface of the locking column (2055), and a partition is arranged between the locking disk (209) and the static support ring (2057).

6. A primary and secondary deep fusion standardized pole mounted circuit breaker according to claim 5, characterized in that: The outer surface of the lock disk (209) is provided with a movable lock hole (2093), and the lock disk (209) is meshed with the lock block (2064) through the movable lock hole (2093). The inner side of the lock disk (209) is provided with an integrated hollow sliding shaft (2092), and the inner wall of the hollow sliding shaft (2092) is provided with a sliding position conversion groove (2094). The lock column (2055) is installed inside the hollow sliding shaft (2092), and the displacement shaft (2056) is connected to the hollow sliding shaft (2092) through the sliding position conversion groove (2094).

7. A primary and secondary deep fusion standardized pole mounted circuit breaker according to claim 6, characterized in that: A return spring (2091) is provided at one end of the lock column (2055), and the lock column (2055) is telescopically connected to the hollow sliding shaft (2092) via the return spring (2091); the hollow sliding shaft (2092) extends into the interior of the static support ring (2057), and the lock disk (209) is rotationally connected to the static support ring (2057) via the hollow sliding shaft (2092).

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