vacuum circuit breaker

Abstract

The present invention provides a vacuum circuit breaker, which relates to the technical field of electrical equipment, including: a circuit breaker, wherein the circuit breaker includes a slide rail and a control gate, a control gate is installed at the upper position of the circuit breaker, two sets of wiring structures are installed at the inner position of the slide rail, and 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, and a set of locking mechanisms is installed at the outer position of the wiring terminal, and the locking mechanism is composed of a locking rod, a locking block, a locking plate and a positioning rod. The threaded rod is rotated to control the sliding of the wiring terminal, and the sliding of the wiring terminal switches back and forth between power on and power off of the circuit breaker. When the wiring terminal slides away from the circuit breaker, the circuit breaker achieves a power-off effect, so that the circuit breaker can be safely maintained. When the control gate is closed, the circuit breaker is still in a power-off state, which further improves the safety of the circuit breaker operation.

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] Currently, electrical equipment includes commonly used circuit breakers, including vacuum circuit breakers. A control gate is set in the vacuum circuit breaker to control the opening and closing 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. 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 can easily cause a safety accident. Summary of the Invention

[0003] The present invention discloses a vacuum circuit breaker. When a thrust is applied to a control block, a first stabilizing plate moves outward. Then, the first stabilizing plate is installed on an external stabilizing frame, and the pushing of the control block is stopped. At this time, the circuit breaker is automatically locked. The anti-loosening cap is rotated, and the tightening bolt presses 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 connection terminal to move outward, so that the operator can safely maintain the circuit breaker and the corresponding line.

[0004] In 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 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 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 is 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 sliding groove is opened on the inner side of the slide rail. A rectangular sliding block is provided on both sides of the terminal, and the sliding block is installed on the inner side of the sliding groove.

[0006] Furthermore, the wiring terminal is provided with two cylindrical conductive blocks, which are connected to the internal wires of the circuit breaker. 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 position. The rectangular blocks pass through the inside of the slots. The anti-loosening cap is provided on a group of anti-loosening protrusions at the upper position. The mounting hole of the terminal block has 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.

[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 support spring is installed at the outer position of the locking rod, a waist-round hole is opened in the threaded rod, and the bottom of the locking rod is installed inside the waist-round 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 is provided with 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 stepped structure is provided on the inner side of the stable shell, a connecting rod is provided at the position of the sliding hole, a control block is provided on 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 support 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, and the first stabilizing seat opens a sliding hole with a rectangular structure. The stabilizing rod is provided with two first limiting blocks with a rectangular structure on the basis of the outer side surface. The sliding hole corresponds to the first limiting block, and the first limiting block passes through the inside of the sliding hole. The stabilizing rod is provided with a second stabilizing plate with an arc structure at the upper position, and the second stabilizing plate is installed with a sliding connected pressing block on the inner side surface. The pressing block extends to the inner side of the control gate, and 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, 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 inside 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:

[0017] 1. A wiring structure is provided to realize the effect of connecting the circuit breaker to an external power line. The wiring structure is provided with a locking cap and a threaded rod. The specific beneficial effects are as follows:

[0018] The anti-loosening cap is made of rubber material, and the tightening bolt is driven to move synchronously by rotating the anti-loosening cap, which avoids the phenomenon of the tightening bolt being operated under power in the prior art. The anti-loosening cap prevents the tightening bolt from loosening, and the tightening bolt can be rotated after lifting it.

[0019] Rotating the threaded rod controls the sliding of the terminal block, which switches the circuit breaker between energized and de-energized. When the terminal block slides away from the circuit breaker, the circuit breaker is de-energized, allowing safe maintenance of the circuit breaker. When the control switch is closed, the circuit breaker remains in the de-energized state, further improving the safety of circuit breaker operation.

[0020] 2. A pressing block is provided to achieve the mechanical locking effect 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. 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, allowing the operator to safely maintain the circuit breaker and the corresponding line.

[0021] 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 letter facing upwards, which reminds personnel other than the operator that the circuit breaker is under maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0023] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0024] In the attached figure:

[0025] Figure 1 The figure shows the axial side structure diagram of the vacuum circuit breaker after assembly of the present application;

[0026] Figure 2 Shows the application Figure 1 Schematic diagram of the axle side structure from a rear perspective;

[0027] Figure 3 It shows the schematic diagram of the axle side structure after the wiring structure of the present application is moved;

[0028] Figure 4 A schematic diagram of the partially cutaway axial structure of the circuit breaker of the present application is shown;

[0029] Figure 5 A schematic diagram of the cross-section of the wiring terminal and threaded rod of the present application is shown;

[0030] Figure 6 A schematic diagram of the cross-section axial side structure of the anti-loosening cap of the present application is shown;

[0031] Figure 7 A schematic diagram of the axial side structure of the protective assembly of the present application from an upward perspective is shown;

[0032] Figure 8 It shows a schematic diagram of the axial side structure of the stabilizing assembly of the present application;

[0033] Figure 9 Shows the application Figure 1 A schematic diagram of the enlarged structure at point A;

[0034] Figure 10 Shows the application Figure 4 A schematic diagram of the enlarged structure at point B;

[0035] Figure 11 Shows the application Figure 8 Enlarged structural diagram at C.

[0036] Reference Signs List

[0037] 1. Circuit breaker; 101. Slide rail; 102. Control gate;

[0038] 2. Wiring structure; 201. Wiring terminal; 202. Clamping bolt; 203. Anti-loosening cap;

[0039] 3. Threaded rod;

[0040] 4. Locking mechanism; 401. Locking rod; 402. Locking block; 403. Locking plate; 404. Positioning rod;

[0041] 5. Stable assembly; 501. Stable housing; 502. Connecting rod; 503. Control block; 504. First stable plate;

[0042] 6. Protective assembly; 601. First stabilizing seat; 602. Stabilizing rod; 603. First limiting block; 604. Second stabilizing plate; 605. Pressing block; 606. Locking bolt;

[0043] 7. Prompt structure; 701. Second stable seat; 702. Prompt rod; 703. Second limit block. DETAILED DESCRIPTION

[0044] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of 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 described 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.

[0045] Example 1: Please refer to Figures 1 to 11 :

[0046] The present invention provides a vacuum circuit breaker, comprising: a circuit breaker 1, the circuit breaker 1 including a slide rail 101 and a control gate 102, the circuit breaker 1 having a control gate 102 mounted on the upper portion thereof, the slide rail 101 having two sets of wiring structures 2 mounted on the inner portion thereof, the wiring structures 2 being composed of wiring terminals 201, a clamping bolt 202, and a locking cap 203, the circuit breaker 1 having a set of slide rails 101 on one side thereof, the slide rails 101 having a U-shaped sliding groove on the inner side thereof, and the wiring terminals 201 having a rectangular sliding block on each side thereof. 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 slots at the bottom. The rectangular blocks pass through the inside of the slot. The anti-loosening cap 203 is made of rubber material. By rotating the anti-loosening cap 203, the clamping bolt 202 is driven to move synchronously, avoiding the clamping bolt 202 with The phenomenon of electrical operation, the anti-loosening cap 203 is provided with a group of anti-loosening protrusions at the upper position, and the mounting hole of the terminal 201 is provided with a group of card slots corresponding to the anti-loosening protrusions at the upper portion, and the anti-loosening protrusions extend into the interior 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 switch 102 is closed, the circuit breaker 1 is still in the power-off state, which further improves the safety of the operation of the circuit breaker 1. The terminal block 201 has two mounting holes of a cylindrical step structure, 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.

[0047] 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 laterally. A group of locking mechanisms 4 are installed at the outer position of the terminal 201. The locking mechanism 4 consists 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 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 has a waist-shaped hole, and the bottom of the locking rod 401 Installed inside the waist circular hole, the locking rod 401 achieves the effect of circumferential positioning of the threaded rod 3. The locking rod 401 is provided with a locking block 402 on one side, and the locking block 402 has an inclined surface on one side. The inclined surface is above the locking block 402, and the locking plate 403 has a groove corresponding to the locking block 402 on one side. 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 outside of the positioning rod 404. The supporting 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 pressing. After pushing the locking plate 403 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.

[0048] In the embodiments of the present disclosure, reference Figures 1 to 11 As shown, a group of stable components 5 are installed at the outer position of the circuit breaker 1. The stable component 5 consists of a stable shell 501, a connecting rod 502, a control block 503 and a first stable plate 504. The circuit breaker 1 is installed with a stable shell 501 on both sides. The stable shell 501 is provided with a sliding hole of a cylindrical step structure at the inner position. A connecting rod 502 is installed at the position of the sliding hole. The stable shell 501 hides and slides the connecting rod 502. The connecting rod 502 is provided with a control block 503 on one side. 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 opened at the upper position of the stabilizing shell 501. The control block 503 extends outward through the interior 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.

[0049] In the embodiments of the present disclosure, reference Figures 1 to 11As shown, the circuit breaker 1 is provided with a set of protective components 6 and a set of prompt structures 7 at the upper position. 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 6 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 pushing the second stabilizing plate 604 to one side, the second stabilizing plate 604 can be swung. A sliding connection 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 support spring is installed on one side of the stabilizing rod 602, and the support spring pushes the protective component 6 to reset as a whole.

[0050] 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. The tension spring stretches the pressing block 605 to reset. A fixing plate is provided on one side of the second fixing plate 604, and a threaded hole is provided on the fixing plate. An insertion hole is provided at the bottom position of the pressing block 605. A 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 fixing plate 604 in position. At this time, the second fixing plate 604 can stably fix 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. The second stable seat 701 opens a sliding hole corresponding to the second limit block 703. The second limit block 703 passes through the inside 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.

[0051] Example 2, based on Example 1, refer to Figures 1 to 11 As shown, it is necessary to set maintenance words on the outer side of the second stable seat 701. When the second stable seat 701 is turned over 90 degrees, the maintenance words face upwards, which reminds people other than the operator that the circuit breaker 1 is under maintenance.

[0052] The working principle of this embodiment is as follows:

[0053] During installation, first install the 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 holes of the wiring terminals 201 and rotate it to connect with the circuit breaker 1, install a set of protective components 6 in conjunction with the first stable seat 601 above the circuit breaker 1, and install a set of stable components 5 in conjunction with the stable shell 501 on the outer side of the circuit breaker 1 firmly. Then, install a set of prompt structures 7 in conjunction with the second stable seat 701 above the circuit breaker 1 firmly.

[0054] When installing the circuit breaker 1 , a push is applied to the control block 503 , and the first stabilizing plate 504 moves outward. The first stabilizing plate 504 is then installed on the external stabilizing frame, and the push on the control block 503 is stopped. The circuit breaker 1 is automatically locked.

[0055] Install the power cord at the terminal 201 and turn the anti-loosening cap 203. Then, tighten the bolt 202 to tighten the power cord.

[0056] When the circuit breaker 1 is under maintenance, the second fixing base 701 is turned 90 degrees, with the word "maintenance" facing upward, which reminds all personnel except the operator that the circuit breaker 1 is under maintenance. The locking bolt 606 is rotated to lock the pressing block 605, which then locks the control gate 102. The threaded rod 3 is rotated to control the terminal block 201 to move outward, allowing the operator to safely maintain the circuit breaker 1 and the corresponding circuit.

[0057] In this article, there are several points to note:

[0058] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0059] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0060] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection 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), wherein the circuit breaker (1) is provided with a control gate (102) at an upper position, and two sets of wiring structures (2) are provided at an inner position of the slide rail (101), wherein the wiring structures (2) are composed of a wiring terminal (201), a clamping bolt (202) and a locking cap (203), and a threaded rod (3) is provided between the circuit breaker (1) and the wiring terminal (201), and a set of locking mechanisms (4) are provided at an outer position of the wiring terminal (201), wherein the locking mechanisms (4) are composed of a locking rod (401), a locking block (402), a locking plate (403) and a positioning rod (404); The circuit breaker (1) is provided with a set of stabilizing components (5) installed at the 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 set of protective components (6) and a set 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); 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 cylindrical stepped structures, 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 position, 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, and 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 seat (601) is 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 block (603) correspond to each other, the first limiting block (603) passes 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 sliding connection 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, and a slide groove is provided on the inner side of the slide rail (101). The connection terminal (201) is provided with a rectangular sliding block on both sides, and the sliding block is installed on the inner side of the sliding 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 terminal block (201). The locking rod (401) is a cylindrical stepped structure. A support spring is mounted on the outside 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) is provided with a stable housing (501) on both sides, the stable housing (501) is provided with a sliding hole with a cylindrical stepped structure at an inner position, a connecting rod (502) is provided at the position of the sliding hole, the connecting rod (502) is provided with a control block (503) on one side, a first stable plate (504) is provided between the two connecting rods (502), the stable housing (501) is provided with a sliding groove in communication with the sliding hole at an upper position, and a supporting spring is provided at an outer position 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 position, 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 provided with a support spring on one side.

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