A reclosing circuit breaker opening and closing indication structure

Abstract

The utility model relates to the technical field of circuit breaker, specifically related to a reclosing circuit breaker on -off indication structure, including the shell cover, be provided with the mounting base on the shell cover, be provided with the connecting shaft on the inner wall of shell cover, be provided with the deflection arm on the connecting shaft, be provided with the indicator board on the deflection arm, be provided with the indicating word on the indicator board, the push rod is slidably arranged in the mounting base, and the top of push rod is provided with the contact head, a group of micro -switches is set up on the shell cover, and the elastic sheet is set up on the micro -switch, compared with prior art, the connecting mode between each spare part of the application is simple, does not need complicated assembly technology, greatly reduces the manpower cost and assembly working hours, significantly improves production efficiency, realizes the cost reduction and benefit increase.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a reclosing circuit breaker opening and closing indication structure. Background Technology

[0002] Circuit breakers, as important protective devices in power systems, are widely used in various power distribution systems. Accurate indication of their open / closed status is crucial for operators to assess the equipment's operating condition. Currently, most common circuit breaker open / closed indication structures employ a double-spring linkage mechanism, which uses two sets of springs to control the reset action of the open and closed positions respectively.

[0003] However, existing double-spring structures have several shortcomings. First, due to the large number of springs, the assembly process is complex, requiring precise installation of each spring, which increases assembly difficulty and labor costs. Second, uneven spring force can easily cause jamming of internal mechanical parts, affecting the normal reset of the indicating mechanism and even leading to indication failure, thus reducing the reliability of the device. Furthermore, to achieve action feedback, some designs add external microswitches for auxiliary detection; however, these switches often have rigid contact with the actuating mechanism, easily increasing friction during opening and closing, affecting the device's sensitivity, and long-term use may also accelerate component wear and shorten the overall lifespan of the device. Therefore, this utility model proposes a reclosing circuit breaker opening and closing indication structure to meet the need to reduce the jamming of internal mechanical parts caused by uneven spring force, which affects the normal reset of the indicating mechanism. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a reclosing circuit breaker opening and closing indication structure to solve the problem that uneven spring force can easily lead to jamming of internal mechanical parts, affecting the normal reset of the indication mechanism, and may even cause indication failure.

[0005] To achieve the above objectives, this utility model provides a reclosing circuit breaker opening and closing indicator structure, including an outer cover, a mounting base on the outer cover, a connecting shaft on the inner wall of the outer cover, a deflection arm on the connecting shaft, and an indicator plate on the deflection arm; a set of micro switches on the outer cover, and an elastic sheet on the micro switches.

[0006] Preferably, a push rod is slidably disposed within the mounting base, and a contact head is provided at the top of the push rod.

[0007] Preferably, the indicator panel is provided with indicator text.

[0008] Preferably, a reset torsion spring is provided on the inner wall of the outer casing, one end of the reset torsion spring is connected to the inner wall of the mounting base, and the other end of the reset torsion spring is in contact with the micro switch.

[0009] Preferably, a deflection arm is provided on the inner wall of the outer casing, and a first contact plate and a second contact plate are provided at one end of the deflection arm. Both the first contact plate and the second contact plate are arc-shaped structures.

[0010] Preferably, one end of the contact head contacts the second contact plate, and the top of the contact head has an arc-shaped structure.

[0011] The beneficial effects of this utility model are:

[0012] 1. When an external operation moves the push rod up and down, the contact head contacts the elastic plate of the microswitch mounted on the housing cover, triggering the microswitch to operate. Simultaneously, the connecting shaft mounted on the inner wall of the housing cover deflects, causing the deflection arm on it to rotate. This, in turn, pushes the indicator plate on the deflection arm to flip. The indicator plate displays indicative text, clearly showing the current open or closed status of the circuit breaker. The entire structure adopts a modular design, with simple connections between components. No complex assembly process is required; installation simply involves inserting and positioning the push rod, indicator plate, and other components sequentially, greatly reducing labor costs and assembly complexity. This design significantly improves production efficiency and reduces costs while increasing productivity. Traditional structures often rely on sliding friction between plastic parts for indication, which can easily lead to wear and failure over time. This design uses metal parts or highly wear-resistant materials for key components such as connecting shafts and deflection arms, and replaces sliding friction with rotational motion, significantly reducing wear and effectively extending the device's lifespan and indicating reliability. All transmission and connection parts in the structure adopt a circular arc surface contact design, which effectively disperses contact stress during operation, avoids stress concentration, improves the structure's impact resistance and fatigue life, and ensures more stable and reliable operation of the overall device.

[0013] 2. When the push rod moves the contact head upward, the contact head engages with the second contact plate, causing the deflection arm to rotate. This rotates the indicator plate and simultaneously activates the micro switch, indicating the opening and closing status. After release, the micro switch and other components automatically return to their initial positions under the action of the reset torsion spring. By setting the reset torsion spring, the micro switch is automatically reset, avoiding indication failure due to improper human operation or delayed response, thus improving the reliability of the device. The first and second contact plates on the deflection arm are both arc-shaped, and the top of the contact head is also arc-shaped, forming surface contact between the contact parts, resulting in more uniform force distribution, reduced wear, and extended service life. In addition, the compact structure and sensitive response facilitate accurate and intuitive display of the circuit breaker's opening and closing status, further improving ease of use and safety. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the circuit breaker in the closed state of this utility model;

[0017] Figure 3 This is a schematic diagram of the circuit breaker in the open state of this utility model.

[0018] The following are marked in the diagram: 1. Outer cover; 2. Mounting base; 3. Push rod; 4. Contact head; 5. Connecting shaft; 6. Deflection arm; 7. Indicator plate; 8. Micro switch; 9. Reset torsion spring; 10. First contact plate; 11. Second contact plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figures 1-3As shown, a reclosing circuit breaker opening and closing indicator structure includes a housing cover 1, a mounting base 2 on the housing cover 1, a connecting shaft 5 on the inner wall of the housing cover 1, a deflection arm 6 on the connecting shaft 5, an indicator plate 7 on the deflection arm 6, and indicator text on the indicator plate 7; a push rod 3 is slidably disposed inside the mounting base 2, and a contact head 4 is disposed on the top of the push rod 3; a set of micro switches 8 is disposed on the housing cover 1, and an elastic sheet is disposed on the micro switches 8.

[0022] When an external operation moves the push rod 3 up and down, the contact head 4 contacts the elastic plate of the micro switch 8 mounted on the outer casing 1, triggering the micro switch 8 to operate. Simultaneously, the connecting shaft 5, located on the inner wall of the outer casing 1, deflects, causing the deflection arm 6 on it to rotate. This, in turn, pushes the indicator plate 7 on the deflection arm 6 to flip. The indicator plate 7 displays indicative text, clearly showing the current open or closed status of the circuit breaker. The entire structure adopts a modular design, with simple connections between components, eliminating the need for complex assembly processes. Installation only requires sequentially inserting and positioning components such as the push rod 3 and indicator plate 7 to complete the assembly, greatly reducing labor costs. This design significantly improves production efficiency and reduces costs while minimizing assembly time. Traditional structures often rely on sliding friction between plastic parts for indication switching, which is prone to wear and failure over time. This design uses metal parts or highly wear-resistant materials for key components such as the connecting shaft 5 and deflection arm 6, and replaces sliding friction with rotational motion, significantly reducing wear and effectively extending the device's service life and indicating reliability. All transmission and connection parts in the structure adopt a circular arc surface contact design, which effectively disperses contact stress during operation, avoids stress concentration, improves the structure's impact resistance and fatigue life, and ensures more stable and reliable operation of the overall device.

[0023] like Figures 1-3 As shown, a reset torsion spring 9 is provided on the inner wall of the outer casing 1. One end of the reset torsion spring 9 is connected to the inner wall of the mounting base 2, and the other end of the reset torsion spring 9 is in contact with the micro switch 8. A deflection arm 6 is provided on the inner wall of the outer casing 1. One end of the deflection arm 6 is provided with a first contact plate 10 and a second contact plate 11. Both the first contact plate 10 and the second contact plate 11 are arc-shaped structures. One end of the contact head 4 is in contact with the second contact plate 11, and the top of the contact head 4 is an arc-shaped structure.

[0024] When push rod 3 moves contact head 4 upward, contact head 4 engages with second contact plate 11, causing deflection arm 6 to rotate, thereby causing indicator plate 7 to flip and simultaneously pushing micro switch 8 to actuate, thus indicating the opening and closing status. After release, under the action of reset torsion spring 9, micro switch 8 and other components automatically return to their initial positions. By setting reset torsion spring 9, the micro switch 8 is automatically reset, avoiding indication failure due to improper human operation or delayed response, thus improving the reliability of the device. The first contact plate 10 and the second contact plate 11 on deflection arm 6 are both arc-shaped structures, and the top of contact head 4 is also arc-shaped, so that the contact parts form surface contact, the force is more uniform, wear is reduced, and service life is extended. In addition, the structure is compact and the response is sensitive, which is conducive to the accurate and intuitive display of the circuit breaker's opening and closing status, further improving the convenience and safety of use.

[0025] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0026] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A structure for indicating the opening and closing of a reclosing circuit breaker, comprising a housing cover (1), characterized in that, The outer cover (1) is provided with a mounting base (2), the inner wall of the outer cover (1) is provided with a connecting shaft (5), the connecting shaft (5) is provided with a deflection arm (6), the deflection arm (6) is provided with an indicator plate (7), the outer cover (1) is provided with a set of micro switches (8), and the micro switches (8) are provided with elastic plates.

2. The opening and closing indication structure of a reclosing circuit breaker according to claim 1, wherein A push rod (3) is slidably disposed inside the mounting base (2), and a contact head (4) is disposed on the top of the push rod (3).

3. The opening and closing indication structure of a reclosing circuit breaker according to claim 2, wherein Instructional text is provided on the indicator panel (7).

4. The reclosing circuit breaker opening / closing indication structure according to claim 3, characterized in that, A reset torsion spring (9) is provided on the inner wall of the outer casing (1). One end of the reset torsion spring (9) is connected to the inner wall of the mounting base (2), and the other end of the reset torsion spring (9) is in contact with the micro switch (8).

5. The opening and closing indication structure of a reclosing circuit breaker according to claim 4, wherein A deflection arm (6) is provided on the inner wall of the outer casing (1). One end of the deflection arm (6) is provided with a first contact plate (10) and a second contact plate (11). Both the first contact plate (10) and the second contact plate (11) are arc-shaped structures.

6. The reclosing circuit breaker opening / closing indication structure according to claim 5, characterized in that, One end of the contact head (4) is in contact with the second contact plate (11), and the top of the contact head (4) has an arc-shaped structure.

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