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 particularly to a vacuum circuit breaker. Background Art

[0002] Currently, common circuit breakers are included in electrical equipment, among which the circuit breaker includes a vacuum circuit breaker. A control brake is provided in the vacuum circuit breaker to control the switch of the circuit breaker. The vacuum circuit breaker and the corresponding circuit need to be repaired during use. However, when the circuit breaker is powered off for maintenance and disassembly, there is a lack of a reminder structure during maintenance and disassembly. Non-professionals can easily close the vacuum circuit breaker. If the circuit breaker is accidentally started by other personnel, when the control brake is closed, the vacuum circuit breaker is immediately powered on, which is likely to cause safety accidents. Summary of the Invention

[0003] The present invention discloses a vacuum circuit breaker. Apply a thrust to the control block. At this time, the first stabilizing plate moves outwards. Then install the first stabilizing plate on the external stabilizing frame. Stop pushing the control block. At this time, the circuit breaker is automatically locked. Rotate the anti-loosening cap. At this time, the compression bolt compresses the power cord. Rotate the locking bolt to lock the pressing block. At this time, the pressing block locks the control brake. Rotate the threaded rod to control the outward movement of the wiring terminal, enabling the operator to safely maintain the circuit breaker and the corresponding circuit.

[0004] In the first aspect of the present disclosure, a vacuum circuit breaker is provided, specifically including: a circuit breaker, the circuit breaker includes a slide rail and a control brake. A control brake is installed at the upper position of the circuit breaker. Two sets of wiring structures are installed on the inner side of the slide rail. The wiring structure is jointly 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 mechanisms is installed at the outer side of the wiring terminal. The locking mechanism is jointly composed of a locking rod, a locking block, a locking plate, and a positioning rod. A set of stabilizing components is installed at the outer side of the circuit breaker. The stabilizing component is jointly composed of a stabilizing housing, a connecting rod, a control block, and a first stabilizing plate. A set of protection components and a set of reminder structures are installed at the upper position of the circuit breaker. The protection component is jointly composed of a first stabilizing seat, a stabilizing rod, a first limiting block, a second stabilizing plate, a pressing block, and a locking bolt. The reminder structure is jointly composed of a second stabilizing seat, a reminder rod, and a second limiting block.

[0005] Further, a set of slide rails is provided on one side of the circuit breaker. A U-shaped sliding groove is opened on the inner side surface of the slide rail. A rectangular sliding block is provided on each of the two sides of the wiring terminal. The sliding block is installed inside the sliding groove.

[0006] Further, the wiring terminal is provided with two cylindrical conductive blocks. The conductive blocks are connected to the internal wires of the circuit breaker. Two cylindrical stepped mounting holes are opened in the wiring terminal. A set of compression bolts is installed inside the mounting holes.

[0007] Furthermore, two rectangular blocks are provided at the large head of the pressing bolt. Two card slots are opened at the bottom position of the anti-loosening cap. The rectangular blocks pass through the inside of the card slots. A set of anti-loosening protrusions are provided at the upper position of the anti-loosening cap. A set of card slots corresponding to the anti-loosening protrusions are opened at the upper position of the mounting hole of the terminal block. The anti-loosening protrusions extend into the inside of the card slots.

[0008] Furthermore, a threaded hole is opened at the middle position of the terminal block. 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 of a cylindrical stepped structure. A support spring is installed at the outer side position of the locking rod. An oval hole is opened in the threaded rod. The bottom of the locking rod is installed inside the oval hole.

[0010] Furthermore, a locking block is provided on one side of the locking rod. An inclined surface is opened on one side of the locking block. The inclined surface is at the upper position of the locking block. A groove corresponding to the locking block is opened on one side of the locking plate. Two positioning rods of a cylindrical structure are provided on one side of the locking plate. A set of support springs are installed on the outer side of the positioning rods.

[0011] Furthermore, a stabilizing housing is installed on each of the two sides of the circuit breaker. A sliding hole of a cylindrical stepped structure is opened at the inner side position of the stabilizing housing. A connecting rod is installed at the position of the sliding hole. A control block is provided on one side of the connecting rod. A first stabilizing plate is provided between the two connecting rods. A sliding groove communicating with the sliding hole is opened at the upper position of the stabilizing housing. A support spring is installed at the outer side position of the connecting rod.

[0012] Furthermore, two first stabilizing seats distributed symmetrically are provided at the upper position of the circuit breaker. A sliding hole of a rectangular structure is opened in the first stabilizing seat. Two first limiting blocks of a rectangular structure are provided on the outer side surface of the stabilizing rod. The sliding hole corresponds to the first limiting blocks. The first limiting blocks pass through the inside of the sliding hole. An arc-shaped second stabilizing plate is provided at the upper position of the stabilizing rod. A pressing block connected in a sliding manner is installed on the inner side surface of the second stabilizing plate. The pressing block extends to the inside of the control switch. A support spring is installed on one side of the stabilizing rod.

[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. A tension spring is installed between the pressing block and the connecting plate.

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

[0015] Further, a control knob is provided on one side of the second stabilizing base. There are two second stabilizing bases symmetrically distributed above the circuit breaker. Two rectangular second limiting blocks are provided on the outer side of the prompting rod. A sliding hole corresponding to the second limiting block is opened in the second stabilizing base. The second limiting block passes through the inside of the sliding hole, and a supporting spring is installed on one side of the second stabilizing base.

[0016] The present invention provides a vacuum circuit breaker, which has the following beneficial effects: 1. A wiring structure is provided to achieve the effect of connecting the external power supply wire of the circuit breaker. The wiring structure is provided with a locknut and a threaded rod. The specific beneficial effects are as follows: The locknut is made of rubber material. By rotating the locknut, the compression bolt moves synchronously, avoiding the phenomenon of live operation of the compression bolt in the prior art. The locknut prevents loosening of the compression bolt, and the compression bolt can be rotated after being lifted. Rotating the threaded rod controls the sliding of the terminal. The sliding of the terminal switches back and forth between the energized and non-energized states of the circuit breaker. When the terminal slides away from the circuit breaker, the circuit breaker is de-energized at this time, so that the circuit breaker can be safely maintained. When the control switch is closed, the circuit breaker is still in the de-energized state, further improving the safety of the operation of the circuit breaker.

[0017] 2. A pressing block is provided to achieve the mechanical locking of the control switch. A buffer spring is provided. When the control switch trips, the buffer spring buffers the force on the control switch, avoiding the problem of large vibration force after the control switch trips. A Y-shaped groove is opened at the large head of the locking bolt. 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 switch, enabling the operator to safely maintain the circuit breaker and the corresponding circuit.

[0018] In addition, a stabilizing plate supported by a spring is provided to facilitate the disassembly and assembly of the circuit breaker. A prompting rod is provided, and the font for maintenance faces upward, indicating that the circuit breaker is under maintenance except for the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0020] The following drawings only relate to some embodiments of the present invention and do not limit the present invention.

[0021] In the drawings: Figure 1 The axonometric structure schematic diagram of the assembled vacuum circuit breaker of the present application is shown; Figure 2 The rear perspective axonometric structure schematic diagram of the Figure 1 of the present application is shown; Figure 3 Shows the axonometric structure diagram after the wiring structure of the present application is moved; Figure 4 Shows the axonometric structure diagram of the partial section of the circuit breaker of the present application; Figure 5 Shows the axonometric structure diagram of the wiring terminal and the threaded rod section of the present application; Figure 6 Shows the axonometric structure diagram of the locknut section of the present application; Figure 7 Shows the axonometric structure diagram of the protection component from the bottom view angle of the present application; Figure 8 Shows the axonometric structure diagram of the stabilizing component of the present application; Figure 9 Shows the Figure 1 Enlarged structure diagram at position A of the present application; Figure 10 Shows the Figure 4 Enlarged structure diagram at position B of the present application; Figure 11 Shows the Figure 8 Enlarged structure diagram at position C of the present application.

[0022] List of reference numerals 1. Circuit breaker; 101. Slide rail; 102. Control gate; 2. Wiring structure; 201. Wiring terminal; 202. Compression bolt; 203. Locknut; 3. Threaded rod; 4. Locking mechanism; 401. Locking rod; 402. Locking block; 403. Locking plate; 404. Positioning rod; 5. Stabilizing component; 501. Stabilizing housing; 502. Connecting rod; 503. Control block; 504. First stabilizing plate; 6. Protection component; 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 stabilizing seat; 702. Prompt rod; 703. Second limiting block. Detailed implementation manners

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0024] Embodiment 1: Please refer to Figures 1 to 11 : The present invention provides a vacuum circuit breaker, including: a circuit breaker 1, the circuit breaker 1 includes a slide rail 101 and a control switch 102. A control switch 102 is installed at the upper position of the circuit breaker 1. Two sets of wiring structures 2 are installed at the inner side of the slide rail 101. The wiring structure 2 is jointly composed of a wiring terminal 201, a compression bolt 202, and a locknut 203. A set of slide rails 101 is provided on one side of the circuit breaker 1. A U-shaped sliding groove is formed on the inner side surface of the slide rail 101. A rectangular sliding block is provided on each side of the wiring terminal 201. The sliding block is installed inside the sliding groove. The slide rail 101 stably positions the wiring terminal 201 up and down in terms of the installation position, and circumferentially positions the wiring terminal 201. The wiring terminal 201 stably moves horizontally along the slide rail 101. Two rectangular blocks are provided at the large head of the compression bolt 202. Two card slots are formed at the bottom position of the locknut 203. The rectangular blocks pass through the inside of the card slots. The locknut 203 is made of rubber material. By rotating the locknut 203, the compression bolt 202 is driven to move synchronously, avoiding the phenomenon of live operation of the compression bolt 202 in the prior art. A set of anti-loosening protrusions is provided at the upper position of the locknut 203. A set of card slots corresponding to the anti-loosening protrusions is formed at the upper position of the installation hole of the wiring terminal 201. The anti-loosening protrusions extend into the inside of the card slots. At this time, the locknut 203 prevents the compression bolt 202 from loosening. After the compression bolt 202 is lifted, the rotation of the compression bolt 202 can be realized. The wiring terminal 201 is provided with two cylindrical conductive blocks, and the conductive blocks are connected to the internal wires of the circuit breaker 1. Therefore, through the sliding of the wiring terminal 201, the circuit breaker 1 can be switched back and forth between energized and de-energized states. When the wiring terminal 201 slides away from the circuit breaker 1, the circuit breaker 1 realizes the de-energized effect at this time, so that the circuit breaker 1 can be safely maintained. When the control switch 102 is closed, the circuit breaker 1 is still in the de-energized state, further improving the safety of the operation of the circuit breaker 1. The wiring terminal 201 is provided with two cylindrical stepped installation holes, and a set of compression bolts 202 is installed inside the installation holes. The cylindrical stepped installation holes hide the compression bolts 202, and the compression bolts 202 realize the effect of stably connecting the power line and the wiring terminal 201.

[0025] In the embodiments of the present disclosure, refer to Figures 1 to 11As shown, a threaded rod 3 is installed between the circuit breaker 1 and the terminal 201. The terminal 201 is provided with a threaded hole at the middle position. 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 lateral movement of the terminal 201 is controlled. A set of locking mechanisms 4 is installed at the outer position of the terminal 201. The locking mechanism 4 is jointly 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, and the installation position of the locking rod 401 on the terminal 201 is stable. The locking rod 401 has a cylindrical stepped structure. A support spring is installed at the outer position of the locking rod 401. The support spring elastically supports the locking rod 401 upward. The threaded rod 3 is provided with an oval hole. The bottom of the locking rod 401 is installed inside the oval hole. The locking rod 401 realizes the effect of circumferential positioning of the threaded rod 3. A locking block 402 is provided on one side of the locking rod 401. The locking block 402 is provided with an inclined surface on one side. 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. The locking block 402 realizes the effect of stabilizing the upward force of the locking block 402. The locking plate 403 is provided with two positioning rods 404 with a cylindrical structure on one side. A set of support springs is installed outside the positioning rods 404. The support springs 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 upward under the support of the spring. At this time, the threaded rod 3 can rotate flexibly.

[0026] In the embodiment of the present disclosure, refer to Figures 1 to 11 As shown, a set of stabilizing components 5 is installed at the outer position of the circuit breaker 1. The stabilizing component 5 is jointly composed of a stabilizing housing 501, a connecting rod 502, a control block 503 and a first stabilizing plate 504. A stabilizing housing 501 is installed on each side of the circuit breaker 1. The stabilizing housing 501 is provided with a sliding hole with a cylindrical stepped structure at the inner position. A connecting rod 502 is installed at the position of the sliding hole. The stabilizing housing 501 hides and slidably positions the connecting rod 502. A control block 503 is provided on one side of the connecting rod 502. A first stabilizing plate 504 is provided between the two connecting rods 502. After the first stabilizing plate 504 is connected to the mounting bracket, the installation position of the circuit breaker 1 is stabilized. The stabilizing housing 501 is provided with a sliding groove communicating with the sliding hole at the upper position. The control block 503 extends outward through the inside of the sliding groove. After a moving thrust is applied to the control block 503, the first stabilizing plate 504 moves outward, facilitating the disassembly and assembly of the circuit breaker 1. A support spring is installed at the outer position of the connecting rod 502. The support spring pushes the first stabilizing plate 504 to automatically reset, and the first stabilizing plate 504 quickly locks the circuit breaker 1.

[0027] In the embodiment of the present disclosure, refer to Figures 1 to 11As shown in the figure, a set of protective components 6 and a set of prompting structures 7 are installed at the upper position of the circuit breaker 1. The protective component 6 is jointly composed of 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. There are two first stabilizing seats 601 arranged symmetrically at the upper position of the circuit breaker 1. A sliding hole with a rectangular structure is opened in the first stabilizing seat 601. Two rectangular first limiting blocks 603 are arranged on the outer side of the stabilizing rod 602. The sliding hole corresponds to the first limiting block 603, and the first limiting block 603 passes through the inside of the sliding hole. The first stabilizing seat 601 cooperates with the first limiting block 603 to achieve the effect of circumferential positioning of the stabilizing rod 602. A second stabilizing plate 604 with an arc structure is arranged 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, it can swing. A sliding-connected pressing block 605 is installed on the inner side of the second stabilizing plate 604. The pressing block 605 extends to the inside of the control gate 102. The pressing block 605 achieves the effect of mechanically locking the control gate 102. A support spring is installed on one side of the stabilizing rod 602, and the support spring pushes the whole protective component 6 to reset.

[0028] In the embodiment of the present disclosure, with reference to Figures 1 to 11 As shown in the figure, a connecting plate is arranged between the two first stabilizing seats 601. A buffer spring is installed on one side of the connecting plate. When the control gate 102 trips, the buffer spring buffers the force on 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 stabilizing plate is arranged on one side of the second stabilizing plate 604, and a threaded hole is opened in the stabilizing plate. An insertion hole is opened at the bottom position of the pressing block 605. The locking bolt 606 passes through the inside of the threaded hole and the insertion hole. A groove with a Y-shaped structure is opened at the large head of the locking bolt 606, and the groove is used to connect a special wrench. The locking bolt 606 achieves the effect of locking the position of the second stabilizing plate 604. At this time, the second stabilizing plate 604 can stably lock the control gate 102, enabling the operator to safely maintain the circuit breaker 1 and the corresponding circuit. The prompting structure 7 is jointly composed of a second stabilizing seat 701, a prompting rod 702, and a second limiting block 703. A control knob is arranged on one side of the second stabilizing seat 701. There are two second stabilizing seats 701 arranged symmetrically at the upper position of the circuit breaker 1. Two rectangular second limiting blocks 703 are arranged on the outer side of the prompting rod 702. A sliding hole corresponding to the second limiting block 703 is opened in the second stabilizing seat 701. The second limiting block 703 passes through the inside of the sliding hole. The second limiting block 703 and the second stabilizing seat 701 cooperate with each other to achieve the effect of 90-degree circumferential positioning of the prompting rod 702. A support spring is installed on one side of the second stabilizing seat 701, and the support spring pushes the second stabilizing seat 701 to reset and lock automatically.

[0029] Embodiment 2. On the basis of Embodiment 1, referring to Figures 1 to 11 As shown, it is necessary to set the font for maintenance on the outer side of the second stabilizing base 701. When the second stabilizing base 701 is flipped 90 degrees, the font for maintenance faces upward, indicating that the circuit breaker 1 is under maintenance except for the operating personnel at this time.

[0030] The working principle of this embodiment: During installation, first install the two sets of wiring structures 2 and the terminal blocks 201 at the inner position of the slide rail 101. Pass the threaded rod 3 through the threaded hole of the terminal block 201 and rotatably connect it to the circuit breaker 1. Install a set of protection components 6 and the first stabilizing base 601 above the circuit breaker 1. Install a set of stabilizing components 5 and the stabilizing housing 501 at the outer position of the circuit breaker 1 for stabilization. Then, install a set of prompting structures 7 and the second stabilizing base 701 above the circuit breaker 1 for stabilization.

[0031] When installing the circuit breaker 1, apply a thrust to the control block 503. At this time, the first stabilizing plate 504 moves outward, and then install the first stabilizing plate 504 on the external stabilizing frame. Stop pushing the control block 503, and at this time, the circuit breaker 1 is automatically locked.

[0032] Install the power cord at the position of the terminal block 201 and rotate the anti-loosening cap 203. At this time, the compression bolt 202 compresses the power cord; When the circuit breaker 1 is under maintenance, after the second stabilizing base 701 is flipped 90 degrees, the font for maintenance faces upward, indicating that the circuit breaker 1 is under maintenance except for the operating personnel. Rotate the locking bolt 606 to lock the pressing block 605. At this time, the pressing block 605 locks the control brake 102. Rotate the threaded rod 3 to control the terminal block 201 to move outward, enabling the operating personnel to safely maintain the circuit breaker 1 and the corresponding circuit.

[0033] In this article, the following points need to be noted: 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0034] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0035] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to 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) at an outer position, the stabilizing components (5) being composed of a stabilizing shell (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) at an upper position, the prompting structure (7) being composed of a second stabilizing seat (701), a prompting rod (702) and a second limit block (703); 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 ends 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; 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; the anti-loosening protrusions extend to the inside of the slots; 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.

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 2, 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).

4. A vacuum circuit breaker according to claim 3, 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.

5. A vacuum circuit breaker according to claim 4, 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).

6. A vacuum circuit breaker according to claim 5, 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).

7. A vacuum circuit breaker according to claim 6, 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).

8. A vacuum circuit breaker according to claim 7, 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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