CN219040385U

CN219040385U - Tripping structure of circuit breaker

Info

Publication number: CN219040385U
Application number: CN202223379419.1U
Authority: CN
Inventors: 董炜; 方勇; 查宏胜; 胡鸿波; 胡玉明; 叶磊; 俞雷; 候志华; 张文多; 汤维芳; 周俊; 梅翔; 郎海虎; 杭程; 汤同根
Original assignee: Tongling Zhongqing New Energy Technology Co ltd
Current assignee: Tongling Zhongqing New Energy Technology Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-05-16
Anticipated expiration: 2032-12-16

Abstract

The utility model relates to a tripping structure, in particular to a tripping structure of a circuit breaker, which belongs to the technical field of junction circuit breakers and comprises a shell, wherein a rotating shaft is fixedly arranged on one side of the inside of the shell, an operating ring is sleeved on the outer side of the rotating shaft, a connecting plate is fixedly arranged on one side of the outer surface of the operating ring, a push rod is slidably arranged on one side of the connecting plate, a supporting frame is arranged at the other end of the push rod, a limiting block is arranged at the other end of the supporting frame, a tripping stop block is arranged at the other end of the limiting block, a gear strip is arranged on one side of a lifting frame, a tripping motor is fixedly arranged at the output end of the tripping motor, the tripping gear and the gear strip are meshed with each other, a trapezoidal regulating groove is formed on one side of the tripping stop block, the contact position between the tripping structure and a fulcrum is regulated according to the overload degree of a circuit by using the tripping stop block and the tripping motor, and then the electric load of a regulating device is reduced, and the influence of direct circuit breaking on the production and life of people is reduced.

Description

Tripping structure of circuit breaker

Technical Field

The utility model relates to a tripping structure, in particular to a tripping structure of a circuit breaker, and belongs to the technical field of circuit breakers.

Background

A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. The circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, and the division of a high-voltage boundary line and a low-voltage boundary line is fuzzy, and is generally called as a high-voltage electrical appliance with the voltage of more than 3 kV. The tripping mechanism is an important component for promoting the automatic tripping of the switch in the operating system, and the action of the tripping mechanism is just like a force fulcrum when the circuit breaker is in a closing process and a closing position, and when the circuit breaker is automatically tripped, the tripping mechanism is operated by the tripping device to release the fulcrum, so that the circuit breaker enters a free opening state.

When the existing tripping structure is affected by the tripping device, the existing tripping structure can be directly and completely separated from the supporting point, so that an electric appliance in use from the outside is immediately disconnected.

Disclosure of Invention

The utility model aims to solve the problems and provide a tripping structure of a circuit breaker, which can adjust the contact position between the tripping structure and a fulcrum according to the overload degree of a circuit, further adjust the power load of a device and reduce the influence of direct circuit breaking on the production and life of people.

The technical scheme is that the trip structure of the circuit breaker comprises a shell, wherein a rotating shaft is fixedly arranged on one side of the inside of the shell, an operating ring is sleeved on the outer side of the rotating shaft, a connecting plate is fixedly arranged on one side of the outer surface of the operating ring, a push rod is slidably arranged on one side of the connecting plate, a supporting frame is arranged at the other end of the push rod, a limiting block is arranged at the other end of the supporting frame, and a trip stop block is arranged at the other end of the limiting block.

Preferably, in order to position the rotating shaft, a return spring is sleeved between the rotating shaft and the operating ring, one end of the return spring is fixedly connected with the rotating shaft, and the other end of the return spring is fixedly connected with the operating ring.

Preferably, in order to improve the pushing effect of the connecting plate, an operating plate is fixedly installed on one side of the outer surface of the operating ring, a sliding groove is formed in one side of the connecting plate, sliding blocks are arranged on two sides of one end of the push rod, the sliding blocks are slidably clamped in the sliding groove, and an angle between the operating plate and the connecting plate is 120 degrees.

Preferably, in order to limit the position of the supporting frame, a supporting rod is fixedly installed in the shell, a positioning rod is fixedly installed in the middle of the supporting rod, and limiting frames are fixedly installed on two sides of the interior of the shell.

Preferably, in order to facilitate pushing the transverse moving block to move transversely, the supporting frame comprises a transverse moving block, a connecting rod and a longitudinal moving block, both ends of the transverse moving block are in sliding clamping connection with the inside of the limiting frame, the connecting rod is rotatably installed between the transverse moving blocks, and the longitudinal moving block is rotatably installed between the connecting rods.

Preferably, in order to quickly push the transverse moving blocks to automatically translate, sliding holes are formed in the center positions of the longitudinal moving blocks, the sliding holes are sleeved on the outer sides of the supporting rods, the sliding holes are in sliding clamping connection with the supporting rods, and tension springs are fixedly installed between the longitudinal moving blocks.

Preferably, in order to fix the position of sideslip piece fast, the inside fixed mounting of shell has the lifting frame, trip dog sliding joint in the inside of lifting frame, trip dog with fixed mounting has supporting spring between the lifting frame.

Preferably, for the power load of the quick adjusting device, a gear bar is installed on one side of the trip stop block, a trip motor is fixedly installed on one side of the lifting frame, a trip gear is fixedly installed at the output end of the trip motor, the trip gear and the gear bar are meshed with each other, and a trapezoidal adjusting groove is formed in one side of the trip stop block.

The beneficial effects of the utility model are as follows: the trip stop block and the trip motor are used, the contact position between the trip structure and the pivot is adjusted according to the overload degree of the circuit, and then the power load of the device is adjusted, so that the influence of direct circuit breaking on the production and life of people is reduced.

Drawings

Fig. 1 is a front cross-sectional view of the present utility model.

Fig. 2 is a partial enlarged view at a in fig. 1.

Fig. 3 is a partial enlarged view at B in fig. 1.

Fig. 4 is a side cross-sectional view of the present utility model.

In the figure: 1. a housing; 101. a support rod; 102. a positioning rod; 103. a limit frame; 2. a rotating shaft; 3. an operating ring; 301. an operation panel; 4. a connecting plate; 5. a push rod; 6. a support frame; 601. a transverse moving block; 602. a connecting rod; 603. a longitudinal moving block; 604. a tension spring; 7. a limiting block; 8. trip stop; 801. a lifting frame; 802. a support spring; 803. a gear strip; 804. a trip motor; 805. a trapezoid adjusting groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a tripping structure of a circuit breaker comprises a housing 1, wherein a rotating shaft 2 is fixedly arranged on one side of the interior of the housing 1, an operating ring 3 is sleeved on the outer side of the rotating shaft 2, a connecting plate 4 is fixedly arranged on one side of the outer surface of the operating ring 3, a push rod 5 is slidably arranged on one side of the connecting plate 4, a supporting frame 6 is arranged at the other end of the push rod 5, a limiting block 7 is arranged at the other end of the supporting frame 6, and a tripping stop block 8 is arranged at the other end of the limiting block 7.

As a technical optimization scheme of the utility model, as shown in fig. 1, a return spring is sleeved between the rotating shaft 2 and the operating ring 3, one end of the return spring is fixedly connected with the rotating shaft 2, and the other end of the return spring is fixedly connected with the operating ring 3, so that the position of the rotating shaft 2 is conveniently positioned.

As a technical optimization scheme of the utility model, as shown in fig. 2, an operation plate 301 is fixedly installed on one side of the outer surface of an operation ring 3, a chute is formed on one side of a connection plate 4, two sides of one end of a push rod 5 are provided with sliding blocks, the sliding blocks are slidably clamped in the chute, and an angle between the operation plate 301 and the connection plate 4 is 120 degrees, so that the pushing effect of the connection plate 4 is improved.

As a technical optimization scheme of the utility model, as shown in fig. 4, a supporting rod 101 is fixedly installed in the housing 1, a positioning rod 102 is fixedly installed in the middle of the supporting rod 101, and limiting frames 103 are fixedly installed on two sides of the interior of the housing 1 so as to limit the position of the supporting frame 6.

As a technical optimization scheme of the utility model, as shown in FIG. 2, the supporting frame 6 comprises transverse moving blocks 601, connecting rods 602 and longitudinal moving blocks 603, both ends of the transverse moving blocks 601 are slidably clamped in the limiting frame 103, the connecting rods 602 are rotatably arranged between the transverse moving blocks 601, and the longitudinal moving blocks 603 are rotatably arranged between the connecting rods 602 so as to facilitate the transverse moving of the transverse moving blocks 601.

As a technical optimization scheme of the utility model, as shown in fig. 4, a sliding hole is formed in the center of the longitudinal moving block 603, the sliding hole is sleeved on the outer side of the supporting rod 101, the sliding hole and the supporting rod 101 are in sliding clamping connection with each other, and a tension spring 604 is fixedly arranged between the longitudinal moving blocks 603 so as to facilitate rapid pushing of the transverse moving block 601 to automatically translate.

As a technical optimization scheme of the utility model, as shown in fig. 3, a lifting frame 801 is fixedly installed in the housing 1, a trip stop block 8 is slidably clamped in the lifting frame 801, and a supporting spring 802 is fixedly installed between the trip stop block 8 and the lifting frame 801, so that the position of the traverse block 601 can be quickly fixed.

As a technical optimization scheme of the utility model, as shown in fig. 3, a gear strip 803 is installed on one side of a trip stop block 8, a trip motor 804 is fixedly installed on one side of a lifting frame 801, a trip gear is fixedly installed at the output end of the trip motor 804, the trip gear and the gear strip 803 are meshed with each other, and a trapezoidal adjusting groove 805 is formed on one side of the trip stop block 8 so as to be convenient for quickly adjusting the power load of the device.

When the automatic tripping device is used, a user installs the automatic tripping device at a proper position, the tripping mechanism is an important component for promoting the automatic tripping of the switch in an operating system, the action of the tripping mechanism is just like a force fulcrum when the circuit breaker is in a closing process and in a closing position, and when the circuit breaker is in automatic tripping, the tripping mechanism is operated by the tripping device to release the fulcrum, so that the circuit breaker enters a free switching-off state, the tripping motor 804 is communicated with an external tripping device, and the external tripping device is electrically connected with an external power supply.

The user promotes operation board 301 and drives operation ring 3 and rotate around the outside of axis of rotation 2, operation ring 3 rotates and drives connecting plate 4 to rotate, connecting plate 4 rotates and promotes push rod 5 to remove, push rod 5 removes and promotes sideslip piece 601 to remove, sideslip piece 601 removes the one end that promotes connecting rod 602 and carries out lateral shifting, make the other end of connecting rod 602 drive indulge and move the piece 603 and carry out vertical shifting, indulge and move the piece 603 and move the stopper 7 that drives the connecting rod 602 other end outwards and carry out lateral shifting, stopper 7 lateral shifting promotes trip dog 8 and moves downwards in the inside of lifting frame 801, when breaking away from the contact between stopper 7 and the trip dog 8, trip dog 8 resumes to the initial position under the elasticity of supporting spring 802 and blocks one end of stopper 7, when external power overload, external tripping device opens trip motor 804 and drives the trip gear and rotates according to the electric quantity load degree, trip gear rotates and promotes the gear strip to remove, make trip dog 8 be located the inside different positions of trapezoidal adjustment tank 805, under the circumstances of guaranteeing the interim normal operation of circuit, alert to the outside personnel.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A circuit breaker tripping structure is characterized in that: including shell (1), inside one side fixed mounting of shell (1) has axis of rotation (2), the outside cover of axis of rotation (2) is equipped with operation ring (3), surface one side fixed mounting of operation ring (3) has connecting plate (4), one side slidable mounting of connecting plate (4) has push rod (5), support frame (6) are installed to the other end of push rod (5), stopper (7) are installed to the other end of support frame (6), trip dog (8) are installed to the other end of stopper (7).

2. The circuit breaker trip structure of claim 1, wherein: the rotary shaft (2) and the operating ring (3) are sleeved with return springs, one ends of the return springs are fixedly connected with the rotary shaft (2), and the other ends of the return springs are fixedly connected with the operating ring (3).

3. The circuit breaker trip structure of claim 1, wherein: the operation device is characterized in that an operation plate (301) is fixedly arranged on one side of the outer surface of the operation ring (3), a sliding groove is formed in one side of the connection plate (4), sliding blocks are arranged on two sides of one end of the push rod (5), the sliding blocks are in sliding clamping connection with the inside of the sliding groove, and an angle between the operation plate (301) and the connection plate (4) is 120 degrees.

4. The circuit breaker trip structure of claim 1, wherein: the novel portable electric power tool is characterized in that a supporting rod (101) is fixedly arranged in the shell (1), a positioning rod (102) is fixedly arranged in the middle of the supporting rod (101), and limiting frames (103) are fixedly arranged on two sides of the interior of the shell (1).

5. The circuit breaker trip structure of claim 4, wherein: the support frame (6) comprises a transverse moving block (601), a connecting rod (602) and a longitudinal moving block (603), wherein both ends of the transverse moving block (601) are in sliding clamping connection with the inside of the limiting frame (103), the connecting rod (602) is rotatably installed between the transverse moving blocks (601), and the longitudinal moving block (603) is rotatably installed between the connecting rods (602).

6. The circuit breaker trip structure of claim 5, wherein: the center position of the longitudinal moving block (603) is provided with a sliding hole, the sliding hole is sleeved on the outer side of the supporting rod (101), the sliding hole is in sliding clamping connection with the supporting rod (101), and a tension spring (604) is fixedly arranged between the longitudinal moving block (603).

7. The circuit breaker trip structure of claim 1, wherein: lifting frame (801) is fixedly installed in shell (1), trip stop block (8) slide joint in the inside of lifting frame (801), trip stop block (8) with fixedly installed support spring (802) between lifting frame (801).

8. The circuit breaker trip structure of claim 7, wherein: a gear strip (803) is arranged on one side of the tripping stop block (8), a tripping motor (804) is fixedly arranged on one side of the lifting frame (801), a tripping gear is fixedly arranged at the output end of the tripping motor (804), the tripping gear and the gear strip (803) are meshed with each other, and a trapezoid adjusting groove (805) is formed in one side of the tripping stop block (8).