CN211719502U - Circuit breaker closing spring mounting structure - Google Patents

Abstract

The utility model provides a circuit breaker closing spring installation structure applied in the technical field of circuit breakers. The circuit breaker closing spring installation structure comprises a circuit breaker body (1) and a closing spring (2). The lower end of the gate spring (2) is connected to the circuit breaker body (1), and the spring hanging plate (3) at the upper end of the closing spring (2) is connected with the lower part of the connecting base (4) through a connecting pin (5), which is connected to the base (4) A threaded hole (6) is provided on the circuit breaker body (1), and a circuit breaker transverse plate (7) is also provided on the circuit breaker body (1). , The circuit breaker closing spring installation structure of the utility model has a simple structure, can easily realize the connection and disassembly between the closing spring and the circuit breaker, is not affected by the tension of the closing spring during the installation and disassembly process, and reduces labor strength.

Description

Circuit breaker closing spring installation structure

technical field

The utility model belongs to the technical field of circuit breakers, and more particularly relates to a circuit breaker closing spring installation structure.

Background technique

The closing spring is the core component of the vacuum circuit breaker for energy storage. In the past, when the closing spring was installed on the circuit breaker, the upper part of the spring was hung on the circuit breaker through a long shaft. When assembling, the assembler needs to pass the long shaft through the mounting hole on one partition of the circuit breaker, and then through the mounting hole on the spring hanging plate and the other partition of the circuit breaker, so that the closing spring can be installed on the circuit breaker. . Closing spring assembly Due to manual assembly, the angle of the spring hanging plate is inaccurate, which often causes the mounting holes on the partition and the spring hanging plate holes to be misaligned, and the closing spring itself has tension, which makes the assembler install the long shaft. time is laborious. On the other hand, if the closing spring of the circuit breaker fails and needs to be disassembled and replaced, due to the tension of the spring itself, the long shaft will be tightly buckled down. When disassembling the long shaft, the assembler needs to knock it hard with a round bar and a hammer. , the long shaft can be knocked out, and it is more laborious to remove the closing spring than the installation, which is very inconvenient.

Utility model content

The technical problem to be solved by the utility model is: to provide a simple structure, which can facilitate the connection and disassembly between the closing spring and the circuit breaker, and will not be affected by the tension of the closing spring during the installation and disassembly process, thereby reducing labor costs. Strong circuit breaker closing spring mounting structure.

To solve the above-mentioned technical problems, the technical scheme adopted by the present utility model is:

The utility model relates to a circuit breaker closing spring installation structure. The circuit breaker closing spring installation structure comprises a circuit breaker body and a closing spring. The lower end of the closing spring is connected to the circuit breaker body. The spring hanging plate at the upper end of the closing spring is connected with the lower part of the connection base by connecting pins, the connection base is provided with threaded holes, the circuit breaker body is also provided with a circuit breaker transverse plate, and the bolts pass through the circuit breaker transverse plate and are screwed and connected with the threaded holes.

The connection base of the circuit breaker closing spring installation structure includes a base body, a connection block I, and a connection block II. The connection block I and the connection block II are respectively arranged on the lower surface of the base body, and the spring hanging plate extends to the connection block. In the gap between I and the connecting block II, the connecting pin passes through the connecting block I, the spring hanging plate and the connecting block II at the same time.

The connection base of the circuit breaker closing spring installation structure is provided with a plurality of threaded holes, each threaded hole penetrates the connection base respectively, and the horizontal plate of the circuit breaker passes through the bolts corresponding to the number and position of the threaded holes. A bolt is screwed and connected to a threaded hole through the cross plate of the circuit breaker.

The spring hanging plate of the circuit breaker closing spring installation structure includes a hanging plate body and a hanging plate connecting block, the upper end of the closing spring is fixedly connected with the lower surface of the hanging plate body, and the hanging plate connecting block is arranged on the upper surface of the hanging plate body.

When the connecting pin of the circuit breaker closing spring installation structure passes through the connecting block I, the spring hanging plate and the connecting block II at the same time, the connecting pin passes through the connecting block I, the hanging plate connecting block and the connecting block II.

A spring washer is sleeved on the bolt, and the spring washer is located between the bolt end of the bolt and the upper surface of the horizontal board of the circuit breaker.

Each end of the connecting pin is provided with a clamping groove along the surface of the connecting pin, and a retaining ring capable of limiting the axial position of the connecting pin is clamped in each clamping groove.

The base body, the connecting block I and the connecting block II of the connecting base are of an integrated structure.

The hanging board body and the hanging board connecting block of the spring hanging board are of an integrated structure.

Adopting the technical scheme of the present utility model, the following beneficial effects can be obtained:

In the circuit breaker closing spring installation structure of the present invention, when the connection between the closing spring and the circuit breaker is required, the lower end of the closing spring is connected to the circuit breaker body, and the spring hanging plate at the upper end of the closing spring is first connected to the circuit breaker body. Connect with the connection base, then pass the bolts through the horizontal plate of the circuit breaker, screw the bolts with the threaded holes on the connection base, and then apply force on the bolts, and the bolts are continuously tightened into the threaded holes. In this way, the connecting base is driven to move upward until the connecting base is fitted to the lower surface of the horizontal board of the circuit breaker. At this point, the installation is complete. In this process, the pull-up of the closing spring is carried out slowly, and there is no need for a long axis to connect the baffle and the spring hanging plate, and naturally there is no need to align the mounting holes on the baffle and the concentricity of the spring hanging plate holes. , labor-saving and convenient. When the closing spring needs to be disassembled, it is only necessary to loosen the bolt. The bolt is screwed out of the threaded hole of the connection base, and the connection base moves downward and gradually moves away from the circuit breaker partition. At this time, the closing spring shrinks slowly and the tension decreases. Small. Until the bolts are separated from the threaded holes on the connection base, and when the bolts are released from the threaded holes, the tension of the closing spring has been minimized, and the problem of suddenly pulling the connection base will not occur, which ensures safety while facilitating disassembly. The circuit breaker closing spring installation structure of the utility model has a simple structure, can facilitate the connection and disassembly between the closing spring and the circuit breaker, is not affected by the tension of the closing spring during the installation and disassembly process, reduces the Labor intensity.

Description of drawings

Below is a brief description of the contents expressed in the drawings of this specification and the symbols in the drawings:

Fig. 1 is the structural representation of the circuit breaker closing spring installation structure of the utility model;

The symbols in the drawings are: 1, circuit breaker body; 2, closing spring; 3, spring hanging plate; 4, connecting base; 5, connecting pin; 7, circuit breaker horizontal plate; 8, bolt; 9, base body ; 10, connecting block I; 11, connecting block II; 12, hanging plate body; 13, hanging plate connecting block; 14, spring washer; 15, bolt end; 16, retaining ring.

Detailed ways

Below, with reference to the accompanying drawings, through the description of the embodiments, the specific implementation of the present utility model, such as the shape and structure of each component involved, the mutual position and connection relationship between each part, the function and working principle of each part, etc. Further details:

As shown in FIG. 1, the utility model is a circuit breaker closing spring installation structure, the circuit breaker closing spring installation structure includes a circuit breaker body 1, a closing spring 2, and the lower end of the closing spring 2 Connected to the circuit breaker body 1, the spring hanging plate 3 at the upper end of the closing spring 2 is connected with the lower part of the connection base 4 through the connecting pin 5, the connection base 4 is provided with threaded holes, and the circuit breaker body 1 is also provided with a circuit breaker horizontal. Plate 7, bolts 8 pass through the horizontal plate 7 of the circuit breaker and are screwed and connected to the threaded holes. In the above structure, when the connection between the closing spring 2 and the circuit breaker is required, the lower end of the closing spring 2 is connected to the circuit breaker body 1, and the spring hanging plate 3 at the upper end of the closing spring 2 is first connected to the circuit breaker through the connecting pin 5. The base 4 is connected, and then, the bolt 8 is passed through the opening on the horizontal plate 7 of the circuit breaker, and the bolt 8 is screwed into the threaded hole on the connection base 4. Then, force is applied to the bolt 8, and the bolt 8 continues into the threaded hole. Tighten. In this way, the connecting base 4 is driven to move upward until the connecting base 4 is abutted against the lower surface of the horizontal board 7 of the circuit breaker. At this point, the installation is complete. In this process, the pull-up of the closing spring 2 is carried out slowly, and there is no need for the long axis to connect the partition plate and the spring hanging plate 3. Naturally, there is no need to align the mounting holes on the partition plate and the spring hanging plate holes. Concentric, labor-saving and convenient. When the closing spring 2 needs to be disassembled, only the bolt 8 needs to be loosened. The bolt 8 is screwed out of the threaded hole of the connection base 4, and the connection base 4 moves downward and gradually moves away from the circuit breaker partition 7. At this time, the closing Spring 2 contracts slowly and the tension decreases. Until the bolt 8 is released from the threaded hole on the connection base, and when the bolt 8 is released from the threaded hole, the tension of the closing spring is already at a minimum, and the problem of suddenly pulling the connection base will not occur. The circuit breaker closing spring installation structure of the utility model can facilitate the connection and disassembly between the closing spring and the circuit breaker, is not affected by the tension of the closing spring during the installation and disassembly process, and reduces labor intensity.

The connection base 4 of the circuit breaker closing spring installation structure includes a base body 9, a connection block I10, and a connection block II11. The connection block I10 and the connection block II11 are respectively arranged on the lower surface of the base body 9. The spring hanging plate 3 Extending to the gap between the connecting block I10 and the connecting block II11, the connecting pin 5 passes through the connecting block I10, the spring hanging plate 3 and the connecting block II11 at the same time. In the above structure, when the connecting base is connected with the spring hanging plate, the spring hanging plate is first clamped to the gap between the connecting block I10 and the connecting block II11, so as to realize the quick positioning of the spring hanging plate and the connecting base, and then insert the connecting pin 5, It is convenient and quick to realize the active connection of the two.

The connection base 4 of the circuit breaker closing spring installation structure is provided with a plurality of threaded holes. Bolts 8, each bolt 8 is screwed and connected to a threaded hole through the cross-board 7 of the circuit breaker. The above structure, the arrangement of a plurality of threaded holes on the connection base, the plurality of threaded holes are evenly distributed on the connection base according to the gap, so that when the bolts pass through the circuit breaker partition, the circuit breaker transverse plate and the connection base can be reliably connected. the goal of. In the process of tightening the bolt, it is the process of pulling the closing spring to install it in place. With the structure of the utility model, the work that originally required manual force to be pulled closer is changed to be pulled by bolt force, which is labor-saving and quick.

The spring hanging plate 3 of the circuit breaker closing spring installation structure includes a hanging plate body 12 and a hanging plate connecting block 13. The upper end of the closing spring 2 is fixedly connected to the lower surface of the hanging plate body 12, and the hanging plate connecting block 13 is arranged on the hanging plate. The upper surface of the board body 12 . When the connecting pin 5 of the circuit breaker closing spring installation structure simultaneously passes through the connecting block I10, the spring hanging plate 3 and the connecting block II11, the connecting pin 5 passes through the connecting block I10, the hanging plate connecting block 13 and the connecting block II11.

The bolt 8 is covered with a spring washer 14 , and the spring washer 14 is located between the bolt end 15 of the bolt 8 and the upper surface of the circuit breaker transverse plate 7 . In the above structure, the spring washer is sleeved on the bolt, which effectively plays the role of buffering and shock absorption during the expansion and contraction of the closing spring.

Each end of the connecting pin 5 is provided with a clamping groove along the surface of the connecting pin 5 , and a retaining ring 16 capable of limiting the axial position of the connecting pin 5 is clamped in each clamping groove. With the above structure, after the retaining ring is installed in the card slot, the axial limit of the connecting pin is realized, the connecting pin is prevented from moving during the operation of the circuit breaker, and the reliable active connection between the connecting base and the spring hanging plate is effectively realized.

The base body 9 , the connecting block I10 and the connecting block II11 of the connecting base 4 are of an integrated structure. In the above structure, the connecting base is processed in one piece, and the processing technology is simple.

The hanging board body 12 and the hanging board connecting block 13 of the spring hanging board 3 are of an integrated structure. The spring hanging plate 3 is processed in one piece, and the processing technology is simple, the cost is low, and the strength is high.

In the circuit breaker closing spring installation structure of the present invention, when the connection between the closing spring and the circuit breaker is required, the lower end of the closing spring is connected to the circuit breaker body, and the spring hanging plate at the upper end of the closing spring is first connected to the circuit breaker body. Connect with the connection base, then pass the bolts through the horizontal plate of the circuit breaker, screw the bolts with the threaded holes on the connection base, and then apply force on the bolts, and the bolts are continuously tightened into the threaded holes. In this way, the connecting base is driven to move upward until the connecting base is fitted to the lower surface of the horizontal board of the circuit breaker. At this point, the installation is complete. In this process, the pull-up of the closing spring is carried out slowly, and there is no need for a long axis to connect the partition and the spring hanging plate, and naturally there is no need to align the mounting holes on the partition and the concentricity of the spring hanging plate holes. , labor-saving and convenient. When the closing spring needs to be disassembled, it is only necessary to loosen the bolt, and the bolt is screwed out of the threaded hole of the connecting base, and the connecting base moves down and gradually moves away from the circuit breaker partition. At this time, the closing spring shrinks slowly and the tension decreases. Small. Until the bolt is separated from the threaded hole on the connection base, and when the bolt is released from the threaded hole, the tension of the closing spring is already at a minimum, and the problem of suddenly pulling the connection base will not occur, which ensures safety while facilitating disassembly. The circuit breaker closing spring installation structure of the utility model has a simple structure, can facilitate the connection and disassembly between the closing spring and the circuit breaker, is not affected by the tension of the closing spring during the installation and disassembly process, reduces the Labor intensity.

The present utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above-mentioned methods, as long as various improvements made by the method idea and technical scheme of the present utility model are adopted, or the Improvements in which the concept and technical solutions of the present invention are directly applied to other occasions are all within the protection scope of the present invention.

Claims (9)

1. The utility model provides a circuit breaker closing spring mounting structure which characterized in that: the installation structure of the closing spring of the circuit breaker comprises a circuit breaker body (1) and a closing spring (2), wherein the lower end of the closing spring (2) is connected to the circuit breaker body (1), a spring hanging plate (3) at the upper end of the closing spring (2) is connected with the lower part of a connecting base (4) through a connecting pin (5), a threaded hole (6) is formed in the connecting base (4), a circuit breaker transverse plate (7) is further arranged on the circuit breaker body (1), and a bolt (8) penetrates through the circuit breaker transverse plate (7) to be screwed with the threaded hole (6) to be connected.

2. The circuit breaker closing spring mounting structure of claim 1, wherein: breaker closing spring mounting structure connect base (4) including base body (9), connecting block I (10), connecting block II (11), connecting block I (10) and connecting block II (11) set up respectively at base body (9) lower surface, spring link plate (3) extend to the clearance portion between connecting block I (10) and connecting block II (11), connecting pin (5) pass connecting block I (10), spring link plate (3), connecting block II (11) simultaneously.

3. The circuit breaker closing spring mounting structure of claim 1 or 2, wherein: the connecting base (4) of the circuit breaker closing spring mounting structure is provided with a plurality of threaded holes (6), each threaded hole (6) penetrates through the connecting base (4) respectively, bolts (8) which correspond to the threaded holes (6) in number and position in a one-to-one mode are passed through the circuit breaker transverse plate (7), and each bolt (8) is connected with one threaded hole (6) in a screwing mode after passing through the circuit breaker transverse plate (7).

4. The circuit breaker closing spring mounting structure of claim 2, wherein: the spring hanging plate (3) of the circuit breaker closing spring mounting structure comprises a hanging plate body (12) and a hanging plate connecting block (13), the upper end of a closing spring (2) is fixedly connected with the lower surface of the hanging plate body (12), and the hanging plate connecting block (13) is arranged on the upper surface of the hanging plate body (12).

5. The circuit breaker closing spring mounting structure of claim 4, wherein: when connecting pin (5) of the circuit breaker closing spring mounting structure simultaneously passes through connecting block I (10), spring hanging plate (3) and connecting block II (11), connecting pin (5) passes through connecting block I (10), hanging plate connecting block (13) and connecting block II (11).

6. The circuit breaker closing spring mounting structure of claim 1 or 2, wherein: and a spring gasket (14) is sleeved on the bolt (8), and the spring gasket (14) is positioned between the bolt end (15) of the bolt (8) and the upper surface of the transverse plate (7) of the circuit breaker.

7. The circuit breaker closing spring mounting structure of claim 1 or 2, wherein: the end part of each end of the connecting pin (5) is provided with a clamping groove along the surface of the connecting pin (5) for a circle, and a retaining ring (16) capable of limiting the axial position of the connecting pin (5) is clamped in each clamping groove.

8. The circuit breaker closing spring mounting structure of claim 2, wherein: the base body (9) of the connecting base (4), the connecting block I (10) and the connecting block II (11) are of an integrated structure.

9. The circuit breaker closing spring mounting structure of claim 4, wherein: the hanging plate body (12) of the spring hanging plate (3) and the hanging plate connecting block (13) are of an integrated structure.

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