Vacuum circuit breaker

Abstract

The invention provides a vacuum circuit breaker, and relates to the technical field of electrical equipment, the vacuum circuit breaker comprises a circuit breaker, the circuit breaker comprises a slide rail and a control brake, the control brake is installed above the circuit breaker, two groups of wiring structures are installed on the inner side of the slide rail, each wiring structure is composed of a wiring terminal, a compression bolt and an anti-loosening cap, a threaded rod is installed between the circuit breaker and the wiring terminal, a set of locking mechanism is installed on the outer side of the wiring terminal, and the locking mechanism is jointly composed of a locking rod, a locking block, a locking plate and a positioning rod. The threaded rod is rotated to control the wiring terminal to slide, sliding of the wiring terminal is switched back and forth between energization and non-energization of the circuit breaker, when the wiring terminal slides away from the circuit breaker, the circuit breaker achieves a power-off effect, and therefore the circuit breaker can be safely maintained, and when the control brake is closed, the circuit breaker is still in a power-off state. And the operation safety of the circuit breaker is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to a vacuum circuit breaker. Background Art

[0002] At present, commonly used circuit breakers are included in electrical equipment, including vacuum circuit breakers. A control gate is set in the vacuum circuit breaker to control the switch of the circuit breaker. The vacuum circuit breaker and the corresponding circuit need to be maintained during use. However, when the circuit breaker is powered off for inspection and disassembly, the circuit breaker lacks a reminder structure during inspection and disassembly, and non-professionals can easily close the vacuum circuit breaker. If the circuit breaker is mistakenly started by other personnel, the vacuum circuit breaker will be powered on immediately after the control gate is closed, which is likely to cause a safety accident. Summary of the invention

[0003] The invention discloses a vacuum circuit breaker. A thrust is applied to a control block. At this time, a first stabilizing plate moves outward. Then, the first stabilizing plate is installed on an external stabilizing frame. The pushing of the control block is stopped. At this time, the circuit breaker is automatically locked. The anti-loosening cap is rotated. At this time, the clamping bolt clamps the power line. The locking bolt is rotated to lock the pressing block. At this time, the pressing block locks the control gate. The threaded rod is rotated to control the wiring terminal to move outward, so that the operator can safely maintain the circuit breaker and the corresponding line.

[0004] According to a first aspect of the present disclosure, a vacuum circuit breaker is provided, specifically comprising: a circuit breaker, wherein the circuit breaker comprises a slide rail and a control gate, a control gate is installed at an upper position of the circuit breaker, two sets of wiring structures are installed at an inner position of the slide rail, the wiring structure is composed of a wiring terminal, a clamping bolt and a locking cap, a threaded rod is installed between the circuit breaker and the wiring terminal, a set of locking mechanisms are installed at an outer position of the wiring terminal, the locking mechanism is composed of a locking rod, a locking block, a locking plate and a positioning rod, a set of stabilizing components are installed at an outer position of the circuit breaker, the stabilizing components are composed of a stabilizing shell, a connecting rod, a control block and a first stabilizing plate, a set of protective components and a set of prompt structures are installed at an upper position of the circuit breaker, the protective components are composed of a first stabilizing seat, a stabilizing rod, a first limit block, a second stabilizing plate, a pressing block and a locking bolt, and the prompt structure is composed of a second stabilizing seat, a prompt rod and a second limit block.

[0005] Furthermore, the circuit breaker is provided with a set of slide rails on one side, and a U-shaped slide groove is provided on the inner side of the slide rail. A rectangular slide block is provided on both sides of the terminal, and the slide block is installed on the inner side of the slide groove.

[0006] Furthermore, the wiring terminal is provided with two cylindrical conductive blocks, the conductive blocks are connected to the internal wires of the circuit breaker, and the wiring terminal is provided with two cylindrical stepped mounting holes, and a set of clamping bolts are installed inside the mounting holes.

[0007] Furthermore, two rectangular blocks are provided at the big head of the clamping bolt, and the anti-loosening cap has two slots at the bottom, the rectangular blocks pass through the inside of the slots, and the anti-loosening cap is provided on a group of anti-loosening protrusions at the upper position, and the mounting hole of the terminal block has a group of slots corresponding to the anti-loosening protrusions at the upper part, and the anti-loosening protrusions extend to the inside of the slots.

[0008] Furthermore, a threaded hole is provided in the middle of the wiring terminal, and the threaded rod passes through the threaded hole and is rotatably connected to one side of the circuit breaker.

[0009] Furthermore, the locking rod is installed at one end of the terminal block, the locking rod is a cylindrical stepped structure, a supporting spring is installed at the outer position of the locking rod, a waist-shaped hole is opened in the threaded rod, and the bottom of the locking rod is installed inside the waist-shaped hole.

[0010] Furthermore, the locking rod is provided with a locking block on one side, the locking block has an inclined surface on one side, the inclined surface is located above the locking block, the locking plate has a groove corresponding to the locking block on one side, the locking plate has two cylindrical positioning rods on one side, and a group of support springs are installed on the outside of the positioning rods.

[0011] Furthermore, the circuit breaker is provided with a stable shell on both sides, a sliding hole with a cylindrical step structure is provided at the inner side of the stable shell, a connecting rod is provided at the position of the sliding hole, a control block is provided at one side of the connecting rod, a first stable plate is provided between the two connecting rods, a sliding groove connected to the sliding hole is provided at the upper position of the stable shell, and a supporting spring is provided at the outer position of the connecting rod.

[0012] Furthermore, the circuit breaker is provided with two aligned first stabilizing seats at the upper position, the first stabilizing seat has a sliding hole of a rectangular structure, the stabilizing rod is provided with two first limiting blocks of a rectangular structure on the basis of the outer side surface, the sliding hole corresponds to the first limiting block, the first limiting block passes through the inside of the sliding hole, the stabilizing rod is provided with a second stabilizing plate of an arc structure at the upper position, the second stabilizing plate is installed with a slidingly connected pressing block on the inner side surface, the pressing block extends to the inner side of the control gate, and the stabilizing rod is installed with a supporting spring on one side.

[0013] Furthermore, a connecting plate is provided between the two first stabilizing seats, a buffer spring is installed on one side of the connecting plate, and a tension spring is installed between the pressing block and the connecting plate.

[0014] Furthermore, the second stabilizing plate is provided with a stabilizing plate on one side, a threaded hole is opened in the stabilizing plate, and an insertion hole is opened at the bottom position of the pressing block. The locking bolt passes through the threaded hole and the insertion hole, and a Y-shaped groove is opened at the big head of the locking bolt.

[0015] Furthermore, the second stabilizing seat is provided with a control knob on one side, the circuit breaker is provided with two aligned second stabilizing seats at the upper position, the prompt rod is provided with two second limiting blocks of rectangular structure on the basis of the outer side surface, the second stabilizing seat is provided with a sliding hole corresponding to the second limiting block, the second limiting block passes through the interior of the sliding hole, and the second stabilizing seat is installed with a support spring on one side.

[0016] The present invention provides a vacuum circuit breaker, which has the following beneficial effects: 1. A wiring structure is provided to realize the effect of connecting the circuit breaker to an external power line. Anti-loosening caps and threaded rods are provided in the wiring structure. The specific beneficial effects are as follows: The anti-loosening cap is made of rubber material, and the clamping bolt is driven to move synchronously by rotating the anti-loosening cap, which avoids the phenomenon of live operation of the clamping bolt in the prior art. The anti-loosening cap prevents the clamping bolt from loosening, and the rotation of the clamping bolt can be realized after the clamping bolt is lifted; The threaded rod is rotated to control the sliding of the terminal block, and the sliding of the terminal block switches the circuit breaker back and forth between power on and power off. When the terminal block slides away from the circuit breaker, the circuit breaker is powered off, so that the circuit breaker can be safely maintained. When the control switch is closed, the circuit breaker is still in a power-off state, which further improves the safety of circuit breaker operation.

[0017] 2. A pressing block is provided to achieve the effect of mechanical locking of the control gate, and a buffer spring is provided. When the control gate trips, the buffer spring buffers the force of the control gate to avoid the problem of large vibration force after the control gate trips. A Y-shaped groove is provided at the big head of the locking bolt, and the groove is used to connect a special wrench. The locking bolt achieves the effect of locking the position of the second stabilizing plate. At this time, the second stabilizing plate can stably lock the control gate, so that the operator can safely maintain the circuit breaker and the corresponding line.

[0018] In addition, a spring-supported stabilizing plate is provided to facilitate the disassembly and assembly of the circuit breaker, and a reminder lever is provided with the maintenance lettering facing upwards, which reminds personnel other than the operator that the circuit breaker is under maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture: Figure 1 The schematic diagram of the axial structure of the vacuum circuit breaker after assembly of the present application is shown; Figure 2 This application shows Figure 1 A schematic diagram of the axle side structure from a rear perspective; Figure 3 The schematic diagram of the axle side structure after the wiring structure of the present application is moved is shown; Figure 4 A schematic diagram of the partially cutaway axial structure of a circuit breaker of the present application is shown; Figure 5 The schematic diagram of the cross-section axial side structure of the wiring terminal and the threaded rod of the present application is shown; Figure 6 A schematic diagram of the cross-section axial side structure of the anti-loosening cap of the present application is shown; Figure 7 A schematic diagram of the side structure of the protective assembly of the present application from an upward angle is shown; Figure 8 A schematic diagram of the axial structure of the stabilizing assembly of the present application is shown; Fig. 9 This application shows Figure 1 A schematic diagram of the enlarged structure at point A; Fig.10 This application shows Figure 4 A schematic diagram of the enlarged structure at B; Fig.11 This application shows Figure 8 Enlarged structural diagram at C.

[0022] Reference numerals list 1. Circuit breaker; 101. Slide rail; 102. Control gate; 2. Wiring structure; 201. Wiring terminal; 202. Clamping bolt; 203. Anti-loosening cap; 3. Threaded rod; 4. Locking mechanism; 401. Locking rod; 402. Locking block; 403. Locking plate; 404. Positioning rod; 5. Stable assembly; 501. Stable housing; 502. Connecting rod; 503. Control block; 504. First stable plate; 6. Protection assembly; 601. First stabilizing seat; 602. Stabilizing rod; 603. First limiting block; 604. Second stabilizing plate; 605. Pressing block; 606. Locking bolt; 7. Prompt structure; 701. Second stable seat; 702. Prompt rod; 703. Second limit block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment 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.

[0024] Example 1: Please refer to Figures 1 to 11 : The present invention proposes a vacuum circuit breaker, comprising: a circuit breaker 1, the circuit breaker 1 comprising a slide rail 101 and a control gate 102, the circuit breaker 1 is provided with a control gate 102 at an upper position, the slide rail 101 is provided with two sets of wiring structures 2 at an inner position, the wiring structure 2 is composed of a wiring terminal 201, a clamping bolt 202 and a locking cap 203, the circuit breaker 1 is provided with a set of slide rails 101 on one side, the slide rail 101 is provided with a sliding groove of a U-shaped structure on the inner side, and the wiring terminal 201 is provided with a sliding block of a rectangular structure on both sides. The sliding block is installed on the inner side of the sliding groove. The installation position of the sliding rail 101 to the terminal 201 is stable up and down. The sliding rail 101 positions the terminal 201 circumferentially. The terminal 201 moves stably laterally along the sliding rail 101. Two rectangular blocks are provided at the big head of the clamping bolt 202. The anti-loosening cap 203 has two card slots at the bottom. The rectangular blocks pass through the inside of the card slot. The anti-loosening cap 203 is made of rubber material. The clamping bolt 202 is driven to move synchronously by rotating the anti-loosening cap 203, which avoids the clamping bolt 202 in the prior art. In order to avoid the phenomenon of electrical operation, the anti-loosening cap 203 is provided with a group of anti-loosening protrusions at the upper position, and a group of card slots corresponding to the anti-loosening protrusions are provided at the upper position of the mounting hole of the terminal 201, and the anti-loosening protrusions extend to the inside of the card slots. At this time, the anti-loosening cap 203 prevents the clamping bolt 202 from loosening. After the clamping bolt 202 is lifted, the rotation of the clamping bolt 202 can be realized. The terminal 201 is provided with two cylindrical conductive blocks, which are connected to the internal wires of the circuit breaker 1. Therefore, the circuit breaker 1 is energized and de-energized by sliding the terminal 201. When the terminal block 201 slides away from the circuit breaker 1, the circuit breaker 1 is powered off, so that the circuit breaker 1 can be safely maintained. When the control gate 102 is closed, the circuit breaker 1 is still in a power-off state, which further improves the safety of the operation of the circuit breaker 1. The terminal block 201 has two cylindrical step structure mounting holes, and a set of clamping bolts 202 are installed inside the mounting holes. The mounting holes of the cylindrical step structure hide the clamping bolts 202, and the clamping bolts 202 achieve the effect of firmly connecting the power line and the terminal block 201; In the embodiments of the present disclosure, reference Figures 1 to 11As shown, a threaded rod 3 is installed between the circuit breaker 1 and the terminal 201, and a threaded hole is provided in the middle position of the terminal 201. The threaded rod 3 passes through the threaded hole and is rotatably connected to one side of the circuit breaker 1. When the threaded rod 3 is rotated, the terminal 201 is controlled to move horizontally. A group of locking mechanisms 4 are installed at the outer position of the terminal 201. The locking mechanism 4 is composed of a locking rod 401, a locking block 402, a locking plate 403 and a positioning rod 404. The locking rod 401 is installed at one end of the terminal 201. The terminal 201 stabilizes the installation position of the locking rod 401. The locking rod 401 is a cylindrical stepped structure. A supporting spring is installed at the outer position of the locking rod 401. The supporting spring elastically supports the locking rod 401 upward. The threaded rod 3 has a waist-shaped hole, and the bottom of the locking rod 401 The locking plate 403 is provided with a groove corresponding to the locking block 402 on one side, and the locking block 402 achieves the effect of stabilizing the upward force of the locking block 402. The locking plate 403 is provided with two cylindrical positioning rods 404 on one side, and a group of supporting springs are installed on the outer side of the positioning rod 404, which push the locking plate 403 and the locking block 402 to automatically engage, so that the locking rod 401 can be automatically locked after being pressed. After the locking plate 403 is pushed to one side, the locking rod 401 automatically moves up under the support of the spring, and the threaded rod 3 can rotate flexibly at this time. In the embodiments of the present disclosure, reference Figures 1 to 11 As shown, a group of stabilizing components 5 are installed at the outer position of the circuit breaker 1. The stabilizing components 5 are composed of a stabilizing shell 501, a connecting rod 502, a control block 503 and a first stabilizing plate 504. A stabilizing shell 501 is installed on both sides of the circuit breaker 1. A sliding hole of a cylindrical step structure is opened at the inner position of the stabilizing shell 501. A connecting rod 502 is installed at the position of the sliding hole. The stabilizing shell 501 hides and slides the connecting rod 502. A control block 503 is provided on one side of the connecting rod 502. A control block 503 is provided between the two connecting rods 502. There is a first stabilizing plate 504. After the first stabilizing plate 504 is connected to the mounting frame, the installation position of the circuit breaker 1 is stabilized. A sliding groove connected to the sliding hole is provided at the upper position of the stabilizing housing 501. The control block 503 extends outward through the inside of the sliding groove. After the control block 503 is applied with a moving thrust, the first stabilizing plate 504 moves outward to facilitate the disassembly and assembly of the circuit breaker 1. A supporting spring is installed at the outer position of the connecting rod 502. The supporting spring pushes the first stabilizing plate 504 to automatically reset, and the first stabilizing plate 504 quickly locks the circuit breaker 1. In the embodiments of the present disclosure, reference Figures 1 to 11As shown, a group of protective components 6 and a group of prompt structures 7 are installed at the upper position of the circuit breaker 1. The protective component 6 is composed of a first stable seat 601, a stable rod 602, a first limit block 603, a second stable plate 604, a pressing block 605 and a locking bolt 606. The circuit breaker 1 is provided with two aligned first stable seats 601 at the upper position. The first stable seat 601 opens a sliding hole of a rectangular structure. The stable rod 602 is provided with two first limit blocks 603 of a rectangular structure on the basis of the outer side surface. The sliding hole corresponds to the first limit block 603. The first limit block 603 passes through the interior of the sliding hole. The first stable seat 601 is provided with a first limit block 603 of a rectangular structure. 01 cooperates with the first limit block 603 to achieve the effect of circumferential positioning of the stabilizing rod 602. A second stabilizing plate 604 with an arc structure is provided at the upper position of the stabilizing rod 602. The stabilizing rod 602 stabilizes the second stabilizing plate 604. After the second stabilizing plate 604 is pushed to one side, the second stabilizing plate 604 can be swung. A slidingly connected pressing block 605 is installed on the inner side of the second stabilizing plate 604. The pressing block 605 extends to the inner side of the control gate 102. The pressing block 605 achieves the effect of mechanical locking of the control gate 102. A supporting spring is installed on one side of the stabilizing rod 602, and the supporting spring pushes the protective component 6 to reset as a whole; In the embodiments of the present disclosure, reference Figures 1 to 11 As shown, a connecting plate is provided between the two first stable seats 601, and a buffer spring is installed on one side of the connecting plate. When the control gate 102 trips, the buffer spring buffers the force of the control gate 102 to avoid the problem of large vibration force after the control gate 102 trips. A tension spring is installed between the pressing block 605 and the connecting plate, and the tension spring stretches the pressing block 605 to reset. A second stable plate 604 is provided with a stable plate on one side, and a threaded hole is provided on the stable plate. The pressing block 605 has an insertion hole at the bottom position. The locking bolt 606 passes through the threaded hole and the insertion hole. A Y-shaped groove is provided at the big head of the locking bolt 606. The groove is used to connect a special wrench. The locking bolt 606 realizes the effect of locking the second stable plate 604. At this time, the second stable plate 604 can stably control the control gate 1 02 locking, so that the operator can safely maintain the circuit breaker 1 and the corresponding line. The prompt structure 7 is composed of a second stable seat 701, a prompt rod 702 and a second limit block 703. The second stable seat 701 is provided with a control knob on one side. The circuit breaker 1 is provided with two aligned second stable seats 701 at the upper position. The prompt rod 702 is provided with two second limit blocks 703 of a rectangular structure on the basis of the outer side surface. The second stable seat 701 opens a sliding hole corresponding to the second limit block 703. The second limit block 703 passes through the interior of the sliding hole. The second limit block 703 and the second stable seat 701 cooperate with each other to achieve the effect of ninety-degree circular positioning of the prompt rod 702. A support spring is installed on one side of the second stable seat 701, and the support spring pushes the second stable seat 701 to reset and automatically lock.

[0025] Embodiment 2, based on embodiment 1, refers to Figures 1 to 11 As shown, it is necessary to set maintenance characters on the outer side of the second stable seat 701. When the second stable seat 701 is turned over 90 degrees, the maintenance characters face upwards, which reminds people other than the operator that the circuit breaker 1 is under maintenance.

[0026] The working principle of this embodiment: During installation, first install two sets of wiring structures 2 in conjunction with the wiring terminals 201 on the inner side of the slide rail 101, pass the threaded rod 3 through the threaded hole of the wiring terminals 201 and rotate and connect with the circuit breaker 1, install a set of protection components 6 in conjunction with the first stabilizing seat 601 on the top of the circuit breaker 1, and install a set of stabilizing components 5 in conjunction with the stabilizing housing 501 on the outer side of the circuit breaker 1 to stabilize it, and then install a set of prompt structures 7 in conjunction with the second stabilizing seat 701 on the top of the circuit breaker 1 to stabilize it; When installing the circuit breaker 1, a thrust is applied to the control block 503, and the first stabilizing plate 504 moves outward. Then, the first stabilizing plate 504 is installed on the external stabilizing frame, and the pushing of the control block 503 is stopped. At this time, the circuit breaker 1 is automatically locked; Install the power cord at the position of the wiring terminal 201, and turn the anti-loosening cap 203, at this time, the clamping bolt 202 clamps the power cord; When the circuit breaker 1 is under maintenance, the second fixing seat 701 is turned over 90 degrees, with the word "maintenance" facing upwards, which reminds the personnel other than the operator that the circuit breaker 1 is under maintenance. The locking bolt 606 is turned to lock the pressing block 605. At this time, the pressing block 605 locks the control gate 102, and the threaded rod 3 is turned to control the terminal 201 to move outward, so that the operator can safely maintain the circuit breaker 1 and the corresponding line.

[0027] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0028] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0029] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A vacuum circuit breaker, comprising: A circuit breaker (1), a wiring structure (2) and a protective assembly (6); characterized in that the protective assembly (6) comprises: a first stabilizing seat (601), a stabilizing rod (602), a first limiting block (603), a second stabilizing plate (604), a pressing block (605) and a locking bolt (606); The circuit breaker (1) comprises a slide rail (101) and a control gate (102); a control gate (102) is installed at an upper position of the circuit breaker (1); two sets of wiring structures (2) are installed at an inner position of the slide rail (101); the wiring structures (2) are composed of wiring terminals (201), clamping bolts (202) and anti-loosening caps (203); a threaded rod (3) is installed between the circuit breaker (1) and the wiring terminals (201); a set of locking mechanisms (4) are installed at an outer position of the wiring terminals (201); the locking mechanisms (4) are composed of locking rods (401), locking blocks (402), locking plates (403) and positioning rods (404); The circuit breaker (1) is provided with a group of stabilizing components (5) installed at the outer position, the stabilizing components (5) being composed of a stabilizing housing (501), a connecting rod (502), a control block (503) and a first stabilizing plate (504); the circuit breaker (1) is provided with a group of protective components (6) and a group of prompting structures (7) installed at the upper position, the prompting structure (7) being composed of a second stabilizing seat (701), a prompting rod (702) and a second limiting block (703).

2. A vacuum circuit breaker according to claim 1, characterized in that: The circuit breaker (1) is provided with a set of slide rails (101) on one side, the slide rails (101) have a slide groove on the inner side, and the connection terminal (201) is provided with a rectangular slide block on both sides, the slide block being installed on the inner side of the slide groove.

3. A vacuum circuit breaker according to claim 1, characterized in that: The wiring terminal (201) is provided with two conductive blocks, which are connected to the internal wires of the circuit breaker (1). The wiring terminal (201) is provided with two mounting holes of a cylindrical stepped structure, a group of clamping bolts (202) are installed inside the mounting holes, two rectangular blocks are provided at the large heads of the clamping bolts (202), the anti-loosening cap (203) is provided with two slots at the bottom, the rectangular blocks pass through the inside of the slots, the anti-loosening cap (203) is provided with a group of anti-loosening protrusions at the upper position, and the mounting hole of the wiring terminal (201) is provided with a group of slots corresponding to the anti-loosening protrusions at the upper position, and the anti-loosening protrusions extend to the inside of the slots.

4. A vacuum circuit breaker according to claim 1, characterized in that: The connection terminal (201) has a threaded hole at a middle position, and the threaded rod (3) passes through the threaded hole and is rotatably connected to one side of the circuit breaker (1).

5. A vacuum circuit breaker according to claim 1, characterized in that: The locking rod (401) is mounted on one end of the connecting terminal (201). The locking rod (401) is a cylindrical stepped structure. A supporting spring is mounted on the outer side of the locking rod (401). The threaded rod (3) is provided with a waist-shaped hole. The bottom of the locking rod (401) is mounted inside the waist-shaped hole.

6. A vacuum circuit breaker according to claim 1, characterized in that: The locking rod (401) is provided with a locking block (402) on one side, the locking block (402) is provided with an inclined surface on one side, and the inclined surface is located above the locking block (402); the locking plate (403) is provided with a groove corresponding to the locking block (402) on one side, and the locking plate (403) is provided with two cylindrical positioning rods (404) on one side, and a group of supporting springs are installed on the outer side of the positioning rods (404).

7. A vacuum circuit breaker according to claim 1, characterized in that: The circuit breaker (1) has a stable housing (501) installed on both sides respectively. The stable housing (501) has a sliding hole with a cylindrical stepped structure at an inner side. A connecting rod (502) is installed at the position of the sliding hole. The connecting rod (502) has a control block (503) at one side. A first stable plate (504) is provided between the two connecting rods (502). The stable housing (501) has a sliding groove in communication with the sliding hole at an upper position. A supporting spring is installed at an outer side of the connecting rod (502).

8. A vacuum circuit breaker according to claim 1, characterized in that: The circuit breaker (1) is provided with two aligned first stabilizing seats (601) at the upper position, the first stabilizing seats (601) are provided with a sliding hole of a rectangular structure, the stabilizing rod (602) is provided with two first limiting blocks (603) of a rectangular structure on the basis of the outer side surface, the sliding hole and the first limiting blocks (603) correspond, the first limiting blocks (603) pass through the inside of the sliding hole, the stabilizing rod (602) is provided with a second stabilizing plate (604) of an arc structure at the upper position, the second stabilizing plate (604) is provided with a slidingly connected pressing block (605) on the inner side surface, the pressing block (605) extends to the inner side of the control gate (102), the stabilizing rod (602) is provided with a supporting spring on one side, a connecting plate is provided between the two first stabilizing seats (601), a buffer spring is provided on one side of the connecting plate, and a tension spring is provided between the pressing block (605) and the connecting plate.

9. A vacuum circuit breaker according to claim 1, characterized in that: The second stabilizing plate (604) is provided with a stabilizing plate on one side, the stabilizing plate is provided with a threaded hole, the pressing block (605) is provided with a through hole at the bottom, the locking bolt (606) passes through the threaded hole and the through hole, and a Y-shaped groove is provided at the large end of the locking bolt (606).

10. A vacuum circuit breaker according to claim 1, characterized in that: The second stabilizing seat (701) is provided with a control knob on one side, the circuit breaker (1) is provided with two aligned second stabilizing seats (701) at the upper position, the prompt rod (702) is provided with two second limiting blocks (703) of rectangular structure on the basis of the outer side surface, the second stabilizing seat (701) is provided with a sliding hole corresponding to the second limiting block (703), the second limiting block (703) passes through the interior of the sliding hole, and the second stabilizing seat (701) is installed with a supporting spring on one side.

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