Combined vacuum circuit breaker

Abstract

The present invention relates to the technical field of combined vacuum circuit breakers, and specifically discloses a combined vacuum circuit breaker, including a circuit breaker body and an energy storage gate rod and a separation and closing gate rod connected to the outside of the circuit breaker body. The present invention facilitates the connection of the tool with the sleeve through the sleeve and the threaded groove at the bottom thereof; the arc edge extrusion plate is used to cooperate with the extension plate of the energy storage gate rod by the cooperation of the round rod, two bevel gears, a cylinder and an arc edge extrusion plate, so that the arc edge extrusion plate and the extension plate of the energy storage gate rod are abutted, and the energy storage gate rod can be reciprocated under the cooperation of the extrusion assembly. In this way, the tool does not need to be aligned with the pull ring, and the energy storage gate rod is reciprocated by rotation, which is simple and convenient to operate; through the cooperation of the push-pull rod, the moving plate, the inclined groove and the moving column, it is convenient for the worker to operate the separation and closing gate rod by pushing and pulling the sleeve after completing the energy storage operation, without using the tool to operate the separation and closing gate rod again, which greatly improves the convenience of manual energy storage and manual separation and closing.

Description

Technical Field

[0001] The invention relates to the technical field of combined vacuum circuit breakers, in particular to a combined vacuum circuit breaker. Background Art

[0002] A vacuum circuit breaker is a switchgear used for opening and closing circuits in power systems. It uses vacuum as an arc extinguishing and insulating medium. The contacts (i.e., moving contacts and stationary contacts) inside the vacuum circuit breaker are encapsulated in a highly evacuated sealed container, which is usually called a vacuum interrupter or vacuum bubble. Existing outdoor pole-mounted combined vacuum circuit breakers are widely used in high-voltage circuits. They generally include a mechanism box, an interrupter, a current transformer, a manual energy storage rod, and an opening and closing pull rod.

[0003] The patent with the current announcement number CN215770984U discloses a combined vacuum circuit breaker, including a mechanism box, wherein arc extinguishing components are arranged on the left, middle and right sides of the upper outer surface of the mechanism box, a locking shaft is arranged on the left outer surface of the mechanism box, four sealing components are arranged on the upper outer surface of the mechanism box, a lifting component is arranged at the lower part of the sealing component, and a switch opening and closing operating handle is fixedly installed on the left side of the front outer surface of the mechanism box. This device plays a certain protective role by arranging the lifting ring inside the storage cavity to avoid direct contact with the outside world. When in use, the lifting ring is pulled, and the lifting ring drives the moving block to slide along the direction of the guide rod through the connecting block, so that the lifting ring moves out of the storage cavity, which is convenient for connecting with the lifting component of the outer wall, and when lifting is not required, the lifting ring is stored inside the storage cavity, which brings better prospects for use.

[0004] Although the above device solves the safety problem during lifting with the lifting ring, it still has the following shortcomings: in the event of a power failure or no external power supply or an emergency, when energy storage cannot be achieved through its own motor power supply, a worker needs to use a rod-shaped tool to align the pull ring of the manual energy storage rod and pull it up and down to make the manual energy storage rod swing up and down to charge the energy storage spring. However, during the up and down pulling process, the pull hook can easily detach from the pull ring of the energy storage rod, resulting in energy storage interruption, and the pull ring needs to be realigned, which further causes untimely energy storage and reduced energy storage efficiency, causing inconvenience. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a combined vacuum circuit breaker to solve the problems raised by the background art and facilitate workers to operate the energy storage gate rod.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combined vacuum circuit breaker, comprising a circuit breaker body and an energy storage gate rod and an opening and closing gate rod connected to the outside of the circuit breaker body, the outer wall of the circuit breaker body is connected to a mounting shell, a rotating structure is connected inside the mounting shell, the rotating structure comprises a round rod slidably connected to the mounting shell, the top of the round rod is fixedly connected to a main bevel gear, the outer side of the main bevel gear is meshingly connected to a slave bevel gear rotatably connected to the mounting shell, the outer end of the slave bevel gear is fixedly connected to a cylinder, the outer wall of the cylinder is fixedly connected to an arc-edge extrusion plate, the end of the energy storage gate rod is fixedly connected to an extension plate that abuts against the arc-edge extrusion plate, the round rod passes through one end of the bottom of the mounting shell and is connected to a sleeve, a threaded groove is provided at the bottom of the sleeve, an extrusion assembly is connected inside the mounting shell, and a switching assembly is connected inside the mounting shell.

[0007] Furthermore, the extrusion assembly includes a mounting plate fixedly mounted on the inner wall of the mounting shell, the bottom surface of the mounting plate is fixedly connected to a vertical rod, the outer wall of the vertical rod is slidably connected to an extrusion column, the bottom surface of the extrusion column is fixedly connected to an extrusion block, the bottom surface of the extrusion block is abutted against the outer wall of the extension plate, the extrusion column is fixedly connected to a second spring on one side away from the extrusion block, the second spring is sleeved on the outside of the vertical rod, and the other end of the second spring is fixedly connected to the vertical rod.

[0008] Furthermore, the switching assembly includes a moving plate, the outer wall of the moving plate is fixedly connected with a long rack plate, the long rack plate, and the inner wall of the mounting shell located on one side of the opening and closing lever is rotatably connected with a main gear, the main gear is meshingly connected with the long rack plate, the outer fixed sleeve of the rotating shaft of the main gear is provided with a double-groove transmission wheel, the tops of the gate rods on both sides of the opening and closing lever are connected with vertical rack plates, the inner sides of the vertical rack plates are meshingly connected with a slave gear, the outer fixed sleeve of the rotating shaft of the slave gear is provided with a single-groove transmission wheel, the two single-groove transmission wheels and the double-groove transmission wheels are connected by a transmission belt, the rotating shafts of the main gear and the two slave gears are rotatably connected to the inner wall of the mounting shell, and a pushing assembly for driving the long rack plate to move is connected in the mounting shell.

[0009] Furthermore, the pushing assembly includes a push-pull rod and a movable plate, the push-pull rod is rotatably connected to the sleeve, the top end of the push-pull rod is passed through a mounting shell and is slidably connected to the mounting shell, the top end of the push-pull rod is fixedly connected to a movable column, the movable plate is located in the mounting shell and is slidably connected, an oblique groove is provided on the outer wall of the movable plate, the movable column is located in the oblique groove and is slidably connected to it, the long rack plate is fixedly connected to the movable plate, and the sleeve is slidably connected to the outer side of the round rod.

[0010] Furthermore, the outer walls of the two vertical rack plates are provided with mounting slide grooves, and a mounting slide rod fixedly connected to the inner wall of the mounting shell is slidably connected in the mounting slide groove.

[0011] Furthermore, an annular groove is formed on the outer wall of the sleeve, an arc block is rotatably connected in the annular groove, and the bottom of the push-pull rod is fixedly connected to the arc block.

[0012] Furthermore, the round rod is provided with symmetrically arranged vertical sliding grooves on both sides of one end outside the mounting shell, a vertical sliding block fixedly connected to the sleeve is slidably connected in the vertical sliding groove, a first spring is fixedly connected to the top of the sleeve, the first spring is sleeved on the outside of the round rod, and the other end of the first spring is rotatably connected to the bottom of the mounting shell.

[0013] Furthermore, a transverse sliding groove is provided on the outer wall of the movable plate, and a transverse sliding rod fixedly connected to the inner wall of the mounting shell is slidably connected in the transverse sliding groove.

[0014] Furthermore, a guide cover is fixedly connected to the bottom of the sleeve, and the cross section of the guide cover is a bell-mouth arrangement.

[0015] Furthermore, a limiting rod which is rotatably connected to the inner wall of the mounting shell is fixedly connected to the outer wall of the cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This combined vacuum circuit breaker is convenient for connecting the tool to the sleeve through the threaded groove arrangement of the sleeve and the bottom thereof. The arc-edge extrusion plate is mutually matched with the extension plate of the energy storage gate rod by the cooperation of the round rod, two bevel gears, the cylinder and the arc-edge extrusion plate. With the cooperation of the extrusion assembly, the energy storage gate rod can be reciprocated. This arrangement makes it unnecessary for people to align with the pull ring, and the energy storage gate rod can be reciprocated by rotation. The operation is simple and convenient. Compared with the original up and down pulling operation, the rod body and the energy storage gate rod will not be separated.

[0018] This combined vacuum circuit breaker, through the mutual cooperation of the push-pull rod, the movable plate, the inclined groove and the movable column, can facilitate workers to open and close the opening and closing rod by pushing and pulling the sleeve after completing the energy storage operation, without having to use tools to operate the opening and closing rod again, which greatly improves the convenience of manual energy storage and manual opening and closing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic structural diagram of a three-dimensional cross section of the present invention as a whole;

[0021] Figure 3 It is a schematic diagram of a three-dimensional cross-sectional structure of the mounting shell of the present invention;

[0022] Figure 4It is a schematic diagram of the three-dimensional structure of the movable plate, the inclined slot and the movable column of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the long rack plate and two vertical rack plates of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the push-pull rod and the movable plate in the unfolded state of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional cross-sectional structure of the sleeve and the guide cover of the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional cross-sectional structure of the extruded column, vertical rod and extruded block of the present invention.

[0027] In the figure: 1, circuit breaker body; 2, energy storage gate rod; 3, opening and closing gate rod; 4, mounting shell; 5, sleeve; 6, round rod; 7, guide cover; 8, push-pull rod; 9, moving plate; 10, first spring; 11, main bevel gear; 12, long rack plate; 13, slave gear; 14, vertical rack plate; 15, main gear; 16, double-groove transmission wheel; 17, horizontal slide bar; 18, horizontal slide groove; 19, slave bevel gear; 20, cylinder; 21, inclined groove; 22, moving column; 23, extension plate; 24, mounting plate; 25, extrusion column; 26, arc edge extrusion plate; 27, annular groove; 28, arc block; 29, vertical slide groove; 30, vertical slider; 31, single-groove transmission wheel; 32, mounting slide bar; 33, mounting slide groove; 34, vertical rod; 35, second spring; 36, extrusion block; 37, limit rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figure 1-Figure 8 A combined vacuum circuit breaker comprises a circuit breaker body 1 and an energy storage gate rod 2 and a closing gate rod 3 connected to the outside of the circuit breaker body 1. The outer wall of the circuit breaker body 1 is connected to a mounting shell 4, and a rotating structure is connected inside the mounting shell 4. The rotating structure comprises a round rod 6 slidably connected to the mounting shell 4, and a main bevel gear 11 is fixedly connected to the top of the round rod 6. The outer side of the main bevel gear 11 is meshingly connected to a slave bevel gear 19 rotatably connected to the mounting shell 4. A cylinder 20 is fixedly connected to the outer end of the slave bevel gear 19, and an arc-edge extrusion plate 26 is fixedly connected to the outer wall of the cylinder 20. An extension plate 23 abutting against the arc-edge extrusion plate 26 is fixedly connected to the end of the energy storage gate rod 2. A sleeve 5 is connected to the outside of one end of the bottom of the mounting shell 4, and a threaded groove is provided at the bottom of the sleeve 5. An extrusion component is connected inside the mounting shell 4, and a switching component is connected inside the mounting shell 4.

[0030] In the combined vacuum circuit breaker of the present invention, when a worker needs to perform energy storage operation on the energy storage gate rod 2, a tool can be used to thread the end of the tool with the threaded groove at the bottom of the sleeve 5. The tool should be a threaded rod with an insulating function and a threaded rod corresponding to the threaded groove at the bottom of the sleeve 5 on the top. Then, the sleeve 5 is rotated to drive the round rod 6 to rotate in the mounting shell 4. The round rod 6 drives the main bevel gear 11 at the top to rotate. The main bevel gear 11 meshes and rotates with the slave bevel gear 19, driving the cylinder 20 to rotate. The cylinder 20 drives the arc edge extrusion plate 26 to abut against the extension plate 23 of the energy storage gate rod 2, so that the extension plate 23 drives the energy storage gate rod 2 to rotate;

[0031] During the rotation of the energy storage gate rod 2, the extrusion assembly is squeezed and compressed at the same time;

[0032] When the arc edge extrusion plate 26 rotates to a vertical state, it will gradually separate from the extension plate 23. After separation, the extension plate 23 will be reset under the extrusion of the extrusion assembly, so that it returns to a horizontal state and rotates downward for a distance.

[0033] At this time, the round rod 6 is continuously rotated, and under the meshing of the two bevel gears, the cylinder 20 drives the arc edge extrusion plate 26 to rotate again, so that the arc edge extrusion plate 26 is again against the extension plate 23, making it rotate, and so on, to realize the energy storage operation of the energy storage gate rod 2.

[0034] The sleeve 5 and the threaded groove at its bottom are arranged to facilitate the connection of the tool to the sleeve 5. The arc-edge extrusion plate 26 is cooperated with each other to achieve the abutment between the arc-edge extrusion plate 26 and the extension plate 23 of the energy storage gate rod 2. With the cooperation of the extrusion assembly, the energy storage gate rod 2 can be reciprocated. This arrangement eliminates the need for people to align with the pull ring, and the energy storage gate rod 2 can be reciprocated by rotation, which is simple and convenient to operate.

[0035] As a preferred technical solution of the present invention, the extrusion assembly includes a mounting plate 24 fixedly mounted on the inner wall of the mounting shell 4, the bottom surface of the mounting plate 24 is fixedly connected to a vertical rod 34, the outer wall of the vertical rod 34 is slidably connected to an extrusion column 25, the bottom surface of the extrusion column 25 is fixedly connected to an extrusion block 36, the bottom surface of the extrusion block 36 is abutted against the outer wall of the extension plate 23, the extrusion column 25 is fixedly connected to a second spring 35 on one side away from the extrusion block 36, the second spring 35 is sleeved on the outer side of the vertical rod 34, and the other end of the second spring 35 is fixedly connected to the vertical rod 34.

[0036] Specifically, when the arc-edge extrusion plate 26 lifts the extension plate 23, the extrusion block 36 contracts under the extrusion of the extension plate 23, and the extrusion block 36 moves upward, driving the extrusion column 25 to move upward on the outside of the vertical rod 34, so that the second spring 35 is compressed;

[0037] When the arc-edge extrusion plate 26 is separated from the extension plate 23, the extrusion block 36 loses its extrusion force. At this time, the extrusion block 36 will recover under the action of the second spring 35, so that the extrusion block 36 restores the extension plate 23 to its original position and rotates the energy storage gate rod 2 downward, and so on, thereby realizing the energy storage operation of the extension plate 23, i.e., the energy storage gate rod 2.

[0038] As a preferred technical solution of the present invention, the switching component includes a moving plate 9, the outer wall of the moving plate 9 is fixedly connected with a long rack plate 12, the long rack plate 12, the inner wall of the mounting shell 4 located on one side of the opening and closing gate rod 3 is rotatably connected with a main gear 15, the main gear 15 is meshed with the long rack plate 12, the outer fixed sleeve of the rotating shaft of the main gear 15 is provided with a double-groove transmission wheel 16, the tops of the gate rods on both sides of the opening and closing gate rod 3 are connected with vertical rack plates 14, the inner side of the vertical rack plates 14 is meshed with a slave gear 13, the outer fixed sleeve of the rotating shaft of the slave gear 13 is provided with a single-groove transmission wheel 31, the two single-groove transmission wheels 31 and the double-groove transmission wheel 16 are connected by a transmission belt, the rotating shafts of the main gear 15 and the two slave gears 13 are rotatably connected to the inner wall of the mounting shell 4, and the mounting shell 4 is connected with a pushing component for driving the long rack plate 12 to move.

[0039] Specifically, when the energy storage gate rod 2 completes energy storage, the worker needs to close or open the opening and closing gate rod 3;

[0040] During the closing operation, the worker can pull down the sleeve 5, so that the sleeve 5 drives the moving plate 9 to retreat in the mounting shell 4, so that the long rack plate 12 is meshed with the main gear 15, and the double-groove transmission wheel 16 on the outer side of the main gear 15 shaft and the slave gears 13 on both sides are driven through the transmission belt, thereby driving the two slave gears 13 to rotate with their shafts as the axis, and the two slave gears 13 will mesh with the vertical rack plate 14 on one side when they rotate;

[0041] At this time, the vertical rack plate 14 located above the closing switch will move downward under the meshing of the gear 13, so that the bottom of the vertical rack plate 14 abuts against the closing rod in the opening and closing rod 3 and rotates, thereby realizing the closing operation. After the closing operation is completed, the opening and closing rod 3 will automatically return to the horizontal state (existing technology);

[0042] When the closing rod in the opening and closing rod 3 rotates and moves downward under the pressure of the vertical rack plate 14, the vertical rack plate 14 above the opening rod will move upward under the meshing with the corresponding slave gear 13, so that the rotation of the opening and closing rod 3 will not be hindered;

[0043] When the gate needs to be opened, the sleeve 5 is moved upward to drive the movable plate 9 to move forward in the mounting shell 4, so that the long rack plate 12 is engaged with the main gear 15, and the vertical rack plate 14 located above the gate opening rod is driven downward to realize the gate opening operation.

[0044] As a preferred technical solution of the present invention, the pushing assembly includes a push-pull rod 8 and a movable plate 9. The push-pull rod 8 is rotatably connected to the sleeve 5. The top end of the push-pull rod 8 passes through the mounting shell 4 and is slidably connected to the mounting shell 4. The top end of the push-pull rod 8 is fixedly connected with a movable column 22. The movable plate 9 is located in the mounting shell 4 and is slidably connected. An inclined groove 21 is opened on the outer wall of the movable plate 9. The movable column 22 is located in the inclined groove 21 and is slidably connected thereto. The long rack plate 12 is fixedly connected to the movable plate 9, and the sleeve 5 is slidably connected to the outer side of the round rod 6.

[0045] Specifically, when the sleeve 5 moves upward, the push-pull rod 8 moves upward in the mounting shell 4, so that the moving column 22 at its end moves in the inclined groove 21 in the moving plate 9. Since the moving plate 9 can only move forward and backward in the mounting shell 4, when the push-pull rod 8 moves upward, the moving plate 9 moves forward, driving the long rack plate 12 to mesh with the main gear 15 and the slave gear 13, completing the opening operation;

[0046] When the sleeve 5 moves downward, the push-pull rod 8 drives the moving column 22 to move in the inclined slot 21, so that the moving plate 9 moves backward under the pull of the inclined slot 21, driving the long rack plate 12 to mesh with the main gear 15 and the slave gear 13, completing the closing operation;

[0047] Through the mutual cooperation of the push-pull rod 8, the movable plate 9, the inclined groove 21 and the movable column 22, the worker can conveniently realize the opening and closing of the opening and closing rod 3 by pushing and pulling the sleeve 5 after completing the energy storage operation, without having to use tools to operate the opening and closing rod 3 again, which greatly improves the convenience of manual energy storage and manual opening and closing operations.

[0048] As a preferred technical solution of the present invention, the outer walls of the two vertical rack plates 14 are provided with mounting slots 33 , and the mounting slots 33 are slidably connected with mounting slide rods 32 fixedly connected to the inner wall of the mounting shell 4 .

[0049] Specifically, in order to make the vertical rack plate 14 move up and down more stably, when the vertical rack plate 14 moves up and down, the mounting groove 33 inside it will slide on the outside of the mounting slide rod 32 to improve the movement stability of the vertical rack plate 14.

[0050] As a preferred technical solution of the present invention, an annular groove 27 is formed on the outer wall of the sleeve 5 , an arc block 28 is rotatably connected in the annular groove 27 , and the bottom of the push-pull rod 8 is fixedly connected to the arc block 28 .

[0051] Specifically, when the sleeve 5 rotates, the annular groove 27 inside it rotates on the outside of the arc block 28, so that the push-pull rod 8 is not affected by the rotation of the sleeve 5 and maintains its up and down movement function.

[0052] As a preferred technical solution of the present invention, symmetrically arranged vertical slide grooves 29 are opened on both sides of one end of the round rod 6 outside the mounting shell 4, and a vertical sliding block 30 fixedly connected to the sleeve 5 is slidably connected in the vertical slide groove 29. A first spring 10 is fixedly connected to the top of the sleeve 5. The first spring 10 is sleeved on the outside of the round rod 6, and the other end of the first spring 10 is rotatably connected to the bottom of the mounting shell 4.

[0053] Specifically, when the sleeve 5 moves up and down on the outside of the round rod 6, the vertical slider 30 on the inner wall of the axis of the sleeve 5 moves in the vertical slide groove 29 on the outside of the round rod 6. This arrangement ensures that when the sleeve 5 rotates, it can drive the round rod 6 to rotate in the installation shell 4, and also ensures that the sleeve 5 moves up and down on the outside of the round rod 6, thereby smoothly driving the push-pull rod 8 to move up and down in the installation shell 4;

[0054] When the sleeve 5 moves up or down, the first spring 10 is subjected to a force that stretches or compresses it. This arrangement helps to keep the moving column 22 at the center of the inclined slot 21, thereby ensuring that the two vertical rack plates 14 remain in a horizontal position without squeezing the opening and closing rod 3. At the same time, it is convenient for the moving plate 9 to move forward and backward at any time to perform the opening action.

[0055] In addition, when the sleeve 5 rotates, the first spring 10 will rotate with the sleeve 5, and the end of the first spring 10 connected to the bottom surface of the mounting shell 4 should be provided with a connecting ring, and the connecting ring should be rotatably connected to the bottom of the mounting shell 4, so as to ensure that when the sleeve 5 rotates, the first spring 10 can rotate without restriction.

[0056] As a preferred technical solution of the present invention, a transverse sliding groove 18 is provided on the outer wall of the movable plate 9 , and a transverse sliding rod 17 fixedly connected to the inner wall of the mounting shell 4 is slidably connected in the transverse sliding groove 18 .

[0057] Specifically, when the moving plate 9 is moving, the transverse sliding groove 18 inside it will move outside the transverse sliding rod 17. This arrangement ensures that the moving plate 9 can move forward and backward stably.

[0058] As a preferred technical solution of the present invention, a guide cover 7 is fixedly connected to the bottom of the sleeve 5, and the cross section of the guide cover 7 is a bell-mouth arrangement.

[0059] Specifically, the guide cover 7 helps the tool rod to smoothly enter the sleeve 5 .

[0060] As a preferred technical solution of the present invention, the outer wall of the cylinder 20 is fixedly connected to a limiting rod 37 which is rotatably connected to the inner wall of the mounting shell 4 .

[0061] Specifically, when the cylinder 20 rotates, it drives the limiting rod 37 to rotate in the mounting shell 4, thereby ensuring the smooth rotation of the arc edge extrusion block 36.

[0062] In the above structure, the mounting shell 4 and the circuit breaker body 1 can be detachably connected, so as to facilitate the installation and disassembly of the overall structure;

[0063] When people are threading the end of the threaded rod of the tool with the threaded groove in the sleeve 5, although the round rod 6 is also rotating, when the arc edge extrusion block 36 and the extension plate 23 abut against each other, there is still a certain resistance, so the end of the tool rod can be smoothly threaded with the sleeve 5. After the connection is completed, gravity can be applied to rotate the arc edge extrusion block 36;

[0064] When the tool rod needs to be separated from the sleeve 5, the tool rod can be rotated in the reverse direction to separate from the sleeve 5;

[0065] The outer wall of the mounting shell 4 should be coated with an insulating layer to effectively ensure safety issues.

[0066] Attached Figure 2 , Attachment Figure 3 , Attachment Figure 5 In the figure, for the convenience of display, the long rack plate 12 is cut open, and the length of the long rack plate 12 should be guaranteed to be engaged with the two slave gears 13.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined vacuum circuit breaker, comprising a circuit breaker body (1), an energy storage gate rod (2) and a closing and opening gate rod (3) connected to the outside of the circuit breaker body (1), characterized in that: The outer wall of the circuit breaker body (1) is connected to a mounting shell (4), and a rotating structure is connected inside the mounting shell (4), wherein the rotating structure comprises a round rod (6) slidably connected to the mounting shell (4), the top of the round rod (6) is fixedly connected to a main bevel gear (11), the outer side of the main bevel gear (11) is meshingly connected to a slave bevel gear (19) rotatably connected to the mounting shell (4), the outer end of the slave bevel gear (19) is fixedly connected to a cylinder (20), the outer wall of the cylinder (20) is fixedly connected to an arc edge extrusion plate (26), and the end of the energy storage gate rod (2) is fixedly connected to a The extension plate (23) is provided with a sleeve (5) connected to the outside of one end of the bottom of the installation shell (4), a threaded groove is provided at the bottom of the sleeve (5), an extrusion assembly is connected inside the installation shell (4), a switching assembly is connected inside the installation shell (4), the extrusion assembly comprises a mounting plate (24) fixedly mounted on the inner wall of the installation shell (4), a vertical rod (34) is fixedly connected to the bottom surface of the mounting plate (24), an extrusion column (25) is slidably connected to the outer wall of the vertical rod (34), the bottom surface of the extrusion column (25) is fixedly connected to an extrusion block (36), and the bottom surface of the extrusion block (36) is connected to the extension plate (23). ), the extrusion column (25) is fixedly connected to a second spring (35) on a side away from the extrusion block (36), the second spring (35) is sleeved on the outside of the vertical rod (34), the other end of the second spring (35) is fixedly connected to the vertical rod (34), the switching assembly comprises a moving plate (9), the outer wall of the moving plate (9) is fixedly connected to a long rack plate (12), the long rack plate (12) and the inner wall of the mounting shell (4) located on one side of the opening and closing rod (3) are rotatably connected to a main gear (15), the main gear (15) is meshedly connected to the long rack plate (12), the main gear (15) A double-groove transmission wheel (16) is provided on the outer fixed sleeve of the rotating shaft. Vertical rack plates (14) are connected above the gate rods on both sides of the opening and closing gate rod (3). The inner side of the vertical rack plates (14) is meshingly connected with a slave gear (13). A single-groove transmission wheel (31) is provided on the outer fixed sleeve of the rotating shaft of the slave gear (13). The two single-groove transmission wheels (31) and the double-groove transmission wheel (16) are connected by a transmission belt. The rotating shafts of the main gear (15) and the two slave gears (13) are rotatably connected to the inner wall of the mounting shell (4). A pushing component for driving the long rack plate (12) to move is connected inside the mounting shell (4).

2. A combined vacuum circuit breaker according to claim 1, characterized in that: The pushing assembly comprises a push-pull rod (8) and a movable plate (9), wherein the push-pull rod (8) is rotatably connected to the sleeve (5), the top end of the push-pull rod (8) is passed through the mounting shell (4) and is slidably connected to the mounting shell (4), the top end of the push-pull rod (8) is fixedly connected to a movable column (22), the movable plate (9) is located in the mounting shell (4) and is slidably connected, an outer wall of the movable plate (9) is provided with an inclined groove (21), the movable column (22) is located in the inclined groove (21) and is slidably connected to the movable plate (9), the long rack plate (12) is fixedly connected to the movable plate (9), and the sleeve (5) is slidably connected to the outer side of the round rod (6).

3. A combined vacuum circuit breaker according to claim 1, characterized in that: The outer walls of the two vertical rack plates (14) are provided with mounting slide grooves (33), and the mounting slide grooves (33) are slidably connected with mounting slide rods (32) fixedly connected to the inner wall of the mounting shell (4).

4. A combined vacuum circuit breaker according to claim 2, characterized in that: An annular groove (27) is formed on the outer wall of the sleeve (5), an arc block (28) is rotatably connected in the annular groove (27), and the bottom of the push-pull rod (8) is fixedly connected to the arc block (28).

5. A combined vacuum circuit breaker according to claim 1, characterized in that: The round rod (6) is provided with symmetrically arranged vertical sliding grooves (29) on both sides of one end outside the mounting shell (4); a vertical sliding block (30) fixedly connected to the sleeve (5) is slidably connected in the vertical sliding groove (29); a first spring (10) is fixedly connected to the top of the sleeve (5); the first spring (10) is sleeved on the outside of the round rod (6); and the other end of the first spring (10) is rotatably connected to the bottom of the mounting shell (4).

6. A combined vacuum circuit breaker according to claim 2, characterized in that: The outer wall of the movable plate (9) is provided with a transverse sliding groove (18), and a transverse sliding rod (17) fixedly connected to the inner wall of the mounting shell (4) is slidably connected in the transverse sliding groove (18).

7. A combined vacuum circuit breaker according to claim 1, characterized in that: The bottom of the sleeve (5) is fixedly connected to a guide cover (7), and the cross section of the guide cover (7) is a bell-mouth arrangement.

8. A combined vacuum circuit breaker according to claim 1, characterized in that: The outer wall of the cylinder (20) is fixedly connected to a limiting rod (37) which is rotatably connected to the inner wall of the mounting shell (4).

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