Circuit breaker tripping structure capable of rapidly opening

Abstract

The invention relates to the technical field of circuit breakers, and discloses a circuit breaker tripping structure capable of rapidly opening, which comprises a fixed plate, a transmission sleeve is rotatably connected to the inner wall of the bottom of the fixed plate, and a sliding rod is slidably connected to the inner wall of the transmission sleeve. The end of a grip is fixedly mounted on the side wall of the top of the sliding rod, and a transmission block is slidably mounted on the inner wall of the fixing plate. According to the circuit breaker tripping structure capable of rapidly opening the brake, when an operator holds the grip, the limiting rod is separated from the insertion rod only by extruding the elastic metal sheet through the palm and matching with the sliding plate, the transmission sliding plate and the abutting spring, and at the moment, the insertion rod is separated from the grip under the compression of the retaining spring by rotating the grip; the operation steps of the holding device when the holding device releases the positioning of the grip are simplified, the closing and tripping efficiency of the circuit breaker in an emergency is greatly improved, and the use safety of the circuit breaker is improved.

Description

Technical Field

[0001] The invention relates to the technical field of circuit breakers, and in particular to a circuit breaker tripping structure capable of quickly opening the circuit breaker. Background Art

[0002] In a low-voltage withdrawable switch cabinet, in order to facilitate the control of the circuit, corresponding circuit breakers are usually installed inside the switch cabinet to control the circuit. Specifically, these circuit breakers function as switches, so that the circuit can be powered off during circuit maintenance or emergency situations, so as to provide good protection for users.

[0003] When the existing circuit breaker is in use, a holding mechanism is required to ensure that the switch is used in a corresponding position, especially when the circuit breaker is closed. By providing a corresponding holding mechanism, the circuit can always maintain a stable connection state.

[0004] However, in actual use of the above-mentioned equipment, the knife holding device in the switch cabinet needs the staff to release the limit of the holding device when in use, so that the knife can be rotated or swung normally, which adds certain troubles to the closing or breaking of the circuit in an emergency. In severe cases, it may cause the knife to fail to break the circuit, which causes certain dangers in the use of low-voltage withdrawable switch cabinets. In view of this, we propose a circuit breaker tripping structure that can quickly open the circuit. Summary of the invention

[0005] The object of the present invention is to provide a circuit breaker tripping structure capable of rapid disconnection, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a circuit breaker tripping structure capable of rapid opening, comprising a fixed plate, a transmission sleeve is rotatably connected to the bottom inner wall of the fixed plate, a sliding rod is slidably connected to the inner wall of the transmission sleeve, an end of a handle is fixedly installed on the top side wall of the sliding rod, a transmission block is slidably installed on the inner wall of the fixed plate, the bottom end of a sleeve is fixedly connected to the upper surface of the transmission block, a sliding column is slidably connected to the inner wall of the sleeve, a plug rod is fixedly connected to the top of the sliding column, an ejection mechanism is arranged inside the handle, and the ejection mechanism comprises: A sliding plate is slidably connected to the side wall of the handle, one end of an elastic metal sheet is fixedly connected to the outer wall of the sliding plate away from the handle, and a rubber column is fixedly connected to the outer wall of the elastic metal sheet close to the handle; A transmission slide plate, wherein the inner wall of the handle is slidably connected to the transmission slide plate, the side wall of the transmission slide plate is fixedly connected to the end of the telescopic rod, the other end of the telescopic rod is fixedly connected to the inner wall of the handle, the side wall of the transmission slide plate is fixedly connected to the end of the tightening spring, the other end of the tightening spring is fixedly connected to the inner wall of the handle; A limiting rod, the end of which is fixedly mounted on the outer wall of the transmission slide plate away from the telescopic rod.

[0007] Preferably, the interior of the transmission sleeve is hollow, and the internal cavity of the transmission sleeve is adapted to the outer diameter of the sliding rod, a strip limit strip is provided on the arc-shaped outer wall of the sliding rod, and a limiting groove adapted to the strip limit strip is provided on the internal cavity of the transmission sleeve, so that the sliding rod can only move in the vertical direction inside the transmission sleeve and cannot rotate relative to each other.

[0008] Preferably, a through hole adapted to the insertion rod is provided in the middle of the handle, so that the insertion rod can be inserted into the through hole to position the handle, thereby maintaining the posture of the handle.

[0009] Preferably, the side wall of the handle is provided with a rectangular groove adapted to the width of the connecting portion of the transmission slide plate and the sliding plate, so that when the sliding plate slides horizontally along the side wall of the handle, it can drive the transmission slide plate to slide horizontally along the inner wall of the handle.

[0010] Preferably, the elastic metal sheet is arranged in an arc shape, and a layer of rubber insulating pad is wrapped around the outer side of the elastic metal sheet, so that the elastic metal sheet itself has a considerable elastic tendency and reset tendency.

[0011] Preferably, a telescopic mechanism is provided inside the fixed plate, and the telescopic mechanism includes a large gear, the transmission sleeve passes through the large gear, and the large gear is fixedly connected to the transmission sleeve, the bottom inner wall of the fixed plate is rotatably mounted with the bottom end of a threaded rod, the threaded rod passes through a small gear, and the small gear is fixedly connected to the threaded rod, and the upper surface of the transmission block is fixedly connected to the bottom end of a retaining spring.

[0012] Preferably, the diameter ratio between the large gear and the small gear is 5:1, so that when the large gear rotates, the number of rotations of the small gear is five times that of the large gear.

[0013] Preferably, the interiors of the sleeve and the sliding column are both hollow, and the diameters of the internal cavities of the two are larger than the outer diameter of the threaded rod, so that the movement between the sleeve and the sliding column will not interfere with the rotation of the threaded rod.

[0014] Preferably, a protective component is provided inside the fixed plate, and the protective component includes a telescopic column, the inner wall of the transmission sleeve is fixedly connected to the bottom end of the telescopic column, the inner wall of the transmission sleeve is fixedly connected to the bottom end of the return spring, the arc-shaped outer wall of the transmission sleeve is fixedly connected to a fixing plate, the side wall of the fixing plate is fixedly connected to the end of the transmission column, the transmission column passes through the bottom end of the hinged rod, and the bottom end of the hinged rod is rotatably connected to the transmission column, the top end of the hinged rod is hinged to a contact plate, the bottom end side wall of the hinged rod is fixedly connected to the end of the volute spring, the other end of the volute spring is fixedly connected to the arc-shaped outer wall of the transmission column, the arc-shaped outer wall of the sliding rod is hinged to the top end of the connecting rod, and the bottom end of the connecting rod is hinged to the inner wall of the hinged rod.

[0015] Preferably, a cylindrical groove is formed on the side wall of the bottom end of the hinged rod, and the spiral spring is arranged inside the cylindrical groove, so that the spiral spring can always provide a stable transmission effect for the hinged rod.

[0016] Compared with the prior art, the present invention provides a circuit breaker tripping structure capable of rapid disconnection, which has the following beneficial effects: 1. The circuit breaker tripping structure capable of rapid tripping, when the operator holds the handle, only needs to squeeze the elastic metal sheet with the palm, cooperate with the sliding plate, the transmission slide plate and the tightening spring, so that the limit rod can be separated from the plug rod. At this time, the handle can be rotated to make the plug rod separate from the handle under the compression of the holding spring, which simplifies the operation steps of the holding device when releasing the positioning of the handle, greatly improves the closing and tripping efficiency of the circuit breaker in an emergency situation, and improves the safety of the circuit breaker.

[0017] 2. In order to prevent the retaining device of the circuit breaker from being continuously exposed when the circuit breaker is opened, which may cause accidental contact during maintenance in the switch cabinet and affect the use effect of the retaining device, the tripping structure of the circuit breaker with rapid opening is provided with a telescopic mechanism, which cooperates with the transmission of the large gear and the small gear, so that the insertion rod can be driven to retract into the inside of the fixed plate while opening the circuit breaker, thereby preventing the retaining device of the circuit breaker from being affected by external factors when the circuit breaker is opened, and also preventing the insertion rod from affecting the daily maintenance actions in the switch cabinet.

[0018] 3. In order to prevent the handle from being affected by external force when not in use and affecting the closing state of the circuit breaker, the circuit breaker tripping structure with rapid tripping is provided with a protective component, which cooperates with a volute spring and a hinged rod so that the contact plate can suppress the rotation tendency of the transmission sleeve, and cooperates with the connecting rod so that the limit on the transmission sleeve can be released by pressing the handle, thereby ensuring the anti-accidental touch protection effect of the circuit breaker and improving the convenience of use of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 2 It is a schematic diagram of a local three-dimensional structure of the present invention; Figure 3 For the present invention Figure 1 A schematic diagram of the local enlarged structure of the middle A area; Figure 4 It is a schematic diagram of the overall structure of the present invention; Figure 5 It is a partial explosion schematic diagram of the hinged rod of the present invention.

[0020] In the figure: 1. fixed plate; 2. transmission sleeve; 3. sliding rod; 4. grip; 5. transmission block; 6. sleeve; 7. sliding column; 8. plug rod; 9. sliding plate; 10. elastic metal sheet; 11. rubber column; 12. transmission slide plate; 13. telescopic rod; 14. holding spring; 15. limiting rod; 16. large gear; 17. threaded rod; 18. small gear; 19. retaining spring; 20. telescopic column; 21. return spring; 22. transmission column; 23. hinged rod; 24. contact plate; 25. volute spring; 26. connecting rod. DETAILED DESCRIPTION

[0021] like Figure 1-Figure 5 As shown, the present invention provides a technical solution: a circuit breaker tripping structure capable of rapid opening, comprising a fixed plate 1, a transmission sleeve 2 is rotatably connected to the bottom inner wall of the fixed plate 1, a slide rod 3 is slidably connected to the inner wall of the transmission sleeve 2, an end of a handle 4 is fixedly installed on the top side wall of the slide rod 3, a transmission block 5 is slidably installed on the inner wall of the fixed plate 1, the bottom end of a sleeve 6 is fixedly connected to the upper surface of the transmission block 5, a sliding column 7 is slidably connected to the inner wall of the sleeve 6, a plug rod 8 is fixedly connected to the top of the sliding column 7, an ejection mechanism is arranged inside the handle 4, the ejection mechanism comprises a sliding plate 9, and a sliding plate is slidably connected to the side wall of the handle 4 9, one end of an elastic metal sheet 10 is fixedly connected to the outer wall of the sliding plate 9 on the side away from the handle 4, and a rubber column 11 is fixedly connected to the outer wall of the elastic metal sheet 10 on the side close to the handle 4. A transmission slide 12 is slidably connected to the inner wall of the handle 4, and the side wall of the transmission slide 12 is fixedly connected to the end of a telescopic rod 13, and the other end of the telescopic rod 13 is fixedly connected to the inner wall of the handle 4. The side wall of the transmission slide 12 is fixedly connected to the end of a tightening spring 14, and the other end of the tightening spring 14 is fixedly connected to the inner wall of the handle 4. The end of a limiting rod 15 is fixedly installed on the outer wall of the transmission slide 12 on the side away from the telescopic rod 13.

[0022] In one embodiment of the present invention, the bottom end of the transmission sleeve 2 passes through the fixed plate 1, and the portion extending beyond the fixed plate 1 is fixedly connected with a corresponding toggle mechanism to transmit the switch of the circuit breaker. At the same time, the interior of the transmission sleeve 2 is hollow, and the internal cavity of the transmission sleeve 2 is adapted to the outer diameter of the slide rod 3. A strip limit strip is provided on the arc-shaped outer wall of the slide rod 3, and a limiting groove adapted to the strip limit strip is provided on the internal cavity of the transmission sleeve 2, so that the slide rod 3 can only move in the vertical direction inside the transmission sleeve 2, and relative rotation cannot occur. Specifically, when the slide rod 3 rotates, the transmission sleeve 2 and the slide rod 3 rotate in the same direction and at the same speed. In addition, a through hole adapted to the insertion rod 8 is provided in the middle of the handle 4, so that the insertion rod 8 can be inserted into the through hole to position the handle 4, thereby The posture of the handle 4 is maintained to maintain the closed state of the circuit breaker. Furthermore, the sliding plate 9 is fixedly connected to the outer wall of the transmission slide 12. Specifically, the side wall of the handle 4 is provided with a rectangular groove adapted to the width of the connection between the transmission slide 12 and the sliding plate 9, so that the sliding plate 9 can drive the transmission slide 12 to slide horizontally along the inner wall of the handle 4 when sliding in the horizontal direction along the side wall of the handle 4. In addition, the elastic metal sheet 10 is arranged in an arc shape, and the elastic metal sheet 10 can be made of memory metal, and a layer of rubber insulating pad is wrapped on the outside, so that the elastic metal sheet 10 itself has a considerable elastic tendency and reset tendency. At the same time, the rubber column 11 is adhered between the elastic metal sheet 10 and the handle 4, so that the elastic metal sheet 10 can be reset after being squeezed.

[0023] In an embodiment of the present invention, the clamping spring 14 is sleeved on the outer side of the telescopic rod 13, so that the telescopic rod 13 can guide and limit the deformation direction of the clamping spring 14. Specifically, the clamping spring 14 always maintains the deformation direction in the horizontal direction when being squeezed or stretched, and will not be deflected in the vertical direction due to its own gravity, so that the clamping spring 14 can always provide a stable transmission effect for the transmission slide plate 12. In addition, the limit rod 15 is slidably installed on the inner wall of the handle 4, and a sliding hole matched with the end of the limit rod 15 is provided in the through hole opened inside the handle 4, so that the limit rod 15 can extend into the through hole, and limiting sliding grooves matched with the end of the limit rod 15 are respectively provided on the left and right sides of the insertion rod 8, so that the position of the insertion rod 8 can be limited when the limit rod 15 is inserted, thereby further ensuring the holding effect of the handle 4.

[0024] In addition, in order to prevent the retaining device of the circuit breaker from being continuously exposed when the circuit breaker is opened, which may cause accidental contact during maintenance in the switch cabinet and affect the use effect of the retaining device, a telescopic mechanism is arranged inside the fixed plate 1, and the telescopic mechanism includes a large gear 16, and the transmission sleeve 2 is penetrated by the large gear 16, and the large gear 16 is fixedly connected to the transmission sleeve 2. The bottom inner wall of the fixed plate 1 is rotatably mounted with the bottom end of a threaded rod 17, and the threaded rod 17 is penetrated by a small gear 18, and the small gear 18 is fixedly connected to the threaded rod 17. The upper surface of the transmission block 5 is fixedly connected with the bottom end of a retaining spring 19.

[0025] In the embodiment of the present invention, the large gear 16 and the small gear 18 mesh and realize transmission. Specifically, the diameter ratio between the large gear 16 and the small gear 18 is 5:1, so that when the large gear 16 rotates, the number of rotations of the small gear 18 is five times that of the large gear 16. Therefore, when the operator holds the handle 4 and rotates it, the small gear 18 can drive the threaded rod 17 to rotate more times when the sliding rod 3 drives the transmission sleeve 2 to rotate. In addition, the transmission block 5 is threadedly connected to the threaded rod 17, and is restricted by the plate-like structure inside the fixing plate 1, so that the transmission block 5 can only move in the vertical direction when the threaded rod 17 rotates. The sleeve 6 and the sliding column 7 can move without rotating with the rotation of the threaded rod 17. At the same time, the interior of the sleeve 6 and the sliding column 7 are hollow, and the diameter of the internal cavity of the two is larger than the outer diameter of the threaded rod 17, so that the sleeve 6 and the sliding column 7 will not interfere with the rotation of the threaded rod 17 when moving, and the retaining spring 19 is sleeved on the outside of the threaded rod 17. Specifically, the top end of the retaining spring 19 is fixedly connected to the bottom end surface of the sliding column 7, so that the retaining spring 19 can provide elastic force in the vertical direction for the sliding column 7, so that the sliding column 7 drives the insertion rod 8 to maintain the positioning effect on the handle 4.

[0026] In addition, in order to prevent the handle 4 from being affected by external force when not in use and causing the closing state of the circuit breaker to be affected, or the closing state of the circuit breaker to be accidentally touched when in the opening state, a protective component is provided inside the fixed plate 1, and the protective component includes a telescopic column 20, the bottom end of the telescopic column 20 is fixedly connected to the inner wall of the transmission sleeve 2, the bottom end of the reset spring 21 is fixedly connected to the inner wall of the transmission sleeve 2, a fixing plate is fixedly connected to the arc-shaped outer wall of the transmission sleeve 2, the side wall of the fixing plate is fixedly connected to the end of the transmission column 22, the transmission column 22 is penetrated by the bottom end of the hinged rod 23, and the bottom end of the hinged rod 23 is rotatably connected to the transmission column 22, the top end of the hinged rod 23 is hinged with a contact plate 24, the bottom end side wall of the hinged rod 23 is fixedly connected to the end of the spiral spring 25, the other end of the spiral spring 25 is fixedly connected to the arc-shaped outer wall of the transmission column 22, the arc-shaped outer wall of the sliding rod 3 is hinged with the top of the connecting rod 26, and the bottom end of the connecting rod 26 is hinged to the inner wall of the hinged rod 23.

[0027] In an embodiment of the present invention, the top end of the telescopic column 20 is fixedly connected to the bottom end surface of the slide rod 3. Similarly, the top end of the return spring 21 is fixedly connected to the bottom end surface of the slide rod 3, so that the return spring 21 can always provide an outward elastic force for the slide rod 3, so that the strip limit block on the outer wall of the slide rod 3 is in a state of being disengaged from the transmission sleeve 2. At this time, the transmission sleeve 2 will not be affected when the handle 4 and the slide rod 3 are rotated externally. Therefore, it can protect the closing or opening state of the circuit breaker and prevent accidental touch. In addition, a cylindrical groove is provided on the side wall of the bottom end of the hinged rod 23, and the spiral spring 25 is arranged inside the cylindrical groove, so that the spiral spring 25 can always provide a stable transmission effect for the hinged rod 23. Furthermore, a layer of The rubber pad is used to increase the friction between it and the fixed plate 1 when in contact, and in the initial state, the spiral spring 25 has a tendency to drive the hinge rod 23 to rotate toward the side of the transmission sleeve 2, so that the contact plate 24 can always be pressed against the inner wall of the fixed plate 1 to limit the position of the transmission sleeve 2, and when the slide bar 3 slides downward along the inner wall of the transmission sleeve 2, the push of the connecting rod 26 is cooperated to make the hinge rod 23 swing outward, so that the contact plate 24 is separated from the inner wall of the fixed plate 1. At this time, the slide bar 3 and the transmission sleeve 2 can be driven to rotate by rotating the handle 4, thereby changing the closing or opening state of the circuit breaker. While ensuring the anti-mistouch protection effect of the circuit breaker, the convenience of use of the circuit breaker is improved. It is only necessary to press one side of the fixed plate 1 before use, thereby improving the use effect.

[0028] In the present invention, when in use, the handle 4 is pushed toward one side of the fixed plate 1 so that the slide bar 3 slides into the transmission sleeve 2 in the upper vertical direction. At this time, due to the push of the connecting rod 26, the hinged rod 23 swings outward, and the contact plate 24 is separated from the inner wall of the fixed plate 1. At this time, the handle 4 is rotated to cooperate with the slide bar 3 to drive the transmission sleeve 2 to rotate to change the closing state of the circuit breaker. In this process, when the operator holds the handle 4, the elastic metal sheet 10 is squeezed by the palm of the hand to make the sliding plate 9 slide to both sides respectively, and then the transmission slide plate 12 is pushed to slide to both sides along the inner wall of the handle 4, so that the limit rod 15 is separated from the insertion rod 8. At this time, the handle 4 can be rotated to keep the spring 19 compressed. This allows the plunger 8 to disengage from the grip 4, simplifies the operating steps of the retaining device when releasing the grip 4, greatly improves the closing and tripping efficiency of the circuit breaker in an emergency, and improves the safety of the circuit breaker. Furthermore, when opening the circuit, the handle 4 drives the slide bar 3 and the transmission sleeve 2 to rotate, and cooperates with the transmission of the large gear 16 and the small gear 18 to make the transmission block 5 move downward in the vertical direction along the inner wall of the fixed plate 1. At this time, the sleeve 6 and the sliding column 7 both move downward, so that the plunger 8 is retracted into the interior of the fixed plate 1, thereby preventing the retaining device of the circuit breaker from being affected by external factors when the circuit breaker is opened, and at the same time, it can also prevent the plunger 8 from affecting the daily maintenance actions in the switch cabinet.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A circuit breaker tripping structure capable of rapid tripping, comprising a fixed plate (1), a transmission sleeve (2) being rotatably connected to the bottom inner wall of the fixed plate (1), a slide rod (3) being slidably connected to the inner wall of the transmission sleeve (2), an end of a handle (4) being fixedly mounted on the top side wall of the slide rod (3), a transmission block (5) being slidably mounted on the inner wall of the fixed plate (1), a bottom end of a sleeve (6) being fixedly connected to the upper surface of the transmission block (5), a sliding column (7) being slidably connected to the inner wall of the sleeve (6), a plug rod (8) being fixedly connected to the top of the sliding column (7), characterized in that: An ejection mechanism is provided inside the handle (4), and the ejection mechanism comprises: A sliding plate (9), the sliding plate (9) being slidably connected to the side wall of the handle (4), one end of an elastic metal sheet (10) being fixedly connected to the outer wall of the sliding plate (9) away from the handle (4), and a rubber column (11) being fixedly connected to the outer wall of the elastic metal sheet (10) on the side close to the handle (4); A transmission slide plate (12), the inner wall of the handle (4) being slidably connected to the transmission slide plate (12), the side wall of the transmission slide plate (12) being fixedly connected to the end of a telescopic rod (13), the other end of the telescopic rod (13) being fixedly connected to the inner wall of the handle (4), the side wall of the transmission slide plate (12) being fixedly connected to the end of a clamping spring (14), the other end of the clamping spring (14) being fixedly connected to the inner wall of the handle (4); A limiting rod (15), the end of which is fixedly mounted on the outer wall of the transmission slide plate (12) on the side away from the telescopic rod (13).

2. A circuit breaker tripping structure capable of rapid disconnection according to claim 1, characterized in that: The interior of the transmission sleeve (2) is hollow, and the internal cavity of the transmission sleeve (2) is matched with the outer diameter of the slide bar (3); a strip-shaped limit strip is provided on the arc-shaped outer wall of the slide bar (3), and a limit sliding groove matched with the strip-shaped limit strip is opened on the internal cavity of the transmission sleeve (2).

3. A circuit breaker tripping structure capable of rapid disconnection according to claim 1, characterized in that: A through hole adapted to fit the insertion rod (8) is provided in the middle of the handle (4).

4. A circuit breaker tripping structure capable of rapid disconnection according to claim 1, characterized in that: The side wall of the handle (4) is provided with a rectangular groove matching the width of the connecting portion between the transmission slide plate (12) and the sliding plate (9).

5. A circuit breaker tripping structure capable of rapid disconnection according to claim 1, characterized in that: The elastic metal sheet (10) is arranged in an arc shape, and a layer of rubber insulating pad is wrapped around the outer side of the elastic metal sheet (10).

6. A circuit breaker tripping structure capable of rapid disconnection according to claim 1, characterized in that: A telescopic mechanism is arranged inside the fixed plate (1), the telescopic mechanism comprising a large gear (16), the transmission sleeve (2) penetrates the large gear (16), and the large gear (16) is fixedly connected to the transmission sleeve (2), the bottom inner wall of the fixed plate (1) is rotatably mounted with the bottom end of a threaded rod (17), the threaded rod (17) penetrates a small gear (18), and the small gear (18) is fixedly connected to the threaded rod (17), and the upper surface of the transmission block (5) is fixedly connected to the bottom end of a retaining spring (19).

7. A circuit breaker tripping structure capable of rapid disconnection according to claim 6, characterized in that: The diameter ratio between the large gear (16) and the small gear (18) is 5:

1.

8. A circuit breaker tripping structure capable of rapid disconnection according to claim 6, characterized in that: The interiors of the sleeve (6) and the sliding column (7) are both hollow, and the diameters of the cavities inside the two are both larger than the outer diameter of the threaded rod (17).

9. A circuit breaker tripping structure capable of rapid disconnection according to claim 1, characterized in that: A protective component is arranged inside the fixing plate (1), the protective component comprising a telescopic column (20), the bottom end of the telescopic column (20) is fixedly connected to the inner wall of the transmission sleeve (2), the bottom end of a return spring (21) is fixedly connected to the inner wall of the transmission sleeve (2), a fixing plate is fixedly connected to the arc-shaped outer wall of the transmission sleeve (2), the end of the transmission column (22) is fixedly connected to the side wall of the fixing plate, and the bottom end of a hinged rod (23) is passed through the transmission column (22). The bottom end of the hinged rod (23) is rotatably connected to the transmission column (22); the top end of the hinged rod (23) is hingedly connected to a contact plate (24); the bottom end side wall of the hinged rod (23) is fixedly connected to the end of a scroll spring (25); the other end of the scroll spring (25) is fixedly connected to the arc-shaped outer wall of the transmission column (22); the top end of a connecting rod (26) is hingedly connected to the arc-shaped outer wall of the sliding rod (3); and the bottom end of the connecting rod (26) is hingedly connected to the inner wall of the hinged rod (23).

10. A circuit breaker tripping structure capable of rapid disconnection according to claim 9, characterized in that: A cylindrical groove is provided on the side wall of the bottom end of the hinge rod (23), and the spiral spring (25) is arranged inside the cylindrical groove.

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