Circuit breaker maintenance mechanism

Abstract

The utility model provides a circuit breaker maintenance mechanism, and belongs to the technical field of circuit breaker maintenance. Comprising a main body, the top of the main body is fixedly connected with a display screen and is provided with four jacks, and the bottom of the main body is provided with a supporting seat and a notch; the storage assembly is connected with the main body, and the clamping piece is used for fixing the main body on an arm of a user; the storage assembly is used for fixing the relative position between the main body and the clamping piece. According to the utility model, the universal meter can be worn on the arm according to the thickness of the arm of a worker through the arrangement of the clamping piece, the clamping piece is matched with the outline of the arm, the arc-shaped bottom plate, the first clamping piece and the second clamping piece are of an integrated structure, and the bottom of the first clamping piece and the bottom of the second clamping piece are respectively provided with a round corner which is bent outwards. And meanwhile, the rectangular empty grooves are formed in the surfaces of the two layers, so that the breathable feeling of wearing is improved.

Description

Technical Field

[0001] The utility model relates to the field of circuit breaker maintenance, in particular to a circuit breaker maintenance mechanism. Background Art

[0002] A circuit breaker is a switching device that can close, carry, and interrupt current under normal circuit conditions, and can close, carry, and interrupt current under abnormal circuit conditions within a specified time. A multimeter, also known as a multiplexer, multimeter, three-meter, or complex meter, is an indispensable measuring instrument in power electronics and other departments. It is generally used to measure voltage, current, and resistance. Multimeters are divided into pointer multimeters and digital multimeters according to the display mode. They are multifunctional and multi-range measuring instruments.

[0003] Before construction, workers need to use a multimeter to measure resistance, voltage and current. However, when using the multimeter, an operating platform for placing it is required. In an environment of high-altitude work, it is impossible to build a platform for it, which makes the use environment of the multimeter have certain limitations. In addition, the multimeter is not convenient to carry when used. At this stage, it is placed in a tool bag or a pocket. When using it, it is necessary to frequently search the tool bag or pocket. Therefore, the multimeter may fall during high-altitude work, increasing the risk of falling objects injuring people. At the same time, the falling of the multimeter causes damage to the internal components, which increases the cost of use. Therefore, the utility model provides a circuit breaker maintenance mechanism to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a circuit breaker maintenance mechanism that is equipped with a clamping piece so that the multimeter can be worn on the arm according to the thickness of the worker's arm. The clamping piece is adapted to the contour of the arm, making it more comfortable for the human body to touch it and not easy to fall off. The above arrangement can solve the problem that the multimeter is inconvenient to carry when in use, and the phenomenon that the multimeter may fall during high-altitude operations, thereby increasing the risk of falling objects injuring people.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A circuit breaker maintenance mechanism comprises a main body, a display screen is fixedly connected to the top of the main body, four sockets are provided on the top of the main body, a support seat is provided on the bottom of the main body, and a notch is provided on the bottom of the main body;

[0007] A storage assembly is provided on the main body, and a clamping piece is provided on the storage assembly, and the clamping piece can be put on the user's arm;

[0008] The storage assembly includes clips symmetrically installed at the bottom of the main body, the inner walls of the two groups of clips are connected with connecting round rods, the inner walls of the connecting round rods are connected with test leads, and the outer walls of the two groups of connecting round rods are fixedly connected to the same arc-shaped bottom plate, and the arc-shaped bottom plate is connected to the clamping piece.

[0009] Preferably, a C-shaped notch is provided on the clip, a limiting groove is provided in the middle position of the C-shaped notch, and an outward-turned rounded corner is provided on the outer wall of the clip.

[0010] Preferably, the outer wall of the connecting round rod is fixedly connected to a limiting circular piece, an arc-shaped baffle is provided at the middle position of the connecting round rod, and a connecting plate is fixedly connected to the middle position of the arc-shaped baffle.

[0011] Preferably, an outward-turned opening is provided on the connecting round rod near the arc-shaped baffle, and a semi-arc-shaped groove is provided on the connecting round rod at the outward-turned opening.

[0012] Preferably, the end of the connecting round rod away from the limiting disc is fixedly connected to a mounting portion, the outer wall of the mounting portion is fixedly connected to an outward-turning portion, the outer wall of the mounting portion is provided with a probe space, and the end of the mounting portion away from the limiting disc is provided with a first U-shaped groove, and two groups of limiting elastic sheets are symmetrically installed on both sides of the first U-shaped groove.

[0013] Preferably, a probe is inserted into the inner wall of the probe space, and the limiting elastic piece is adapted to the shape of the probe.

[0014] Preferably, a second U-shaped groove is provided on the outer wall of the mounting portion, an arc-shaped base is fixedly connected to the outer wall of the mounting portion away from the second U-shaped groove, and two groups of elastic protrusions are symmetrically installed on the top of the arc-shaped base.

[0015] Preferably, the clamping member includes a triangular portion and a rectangular portion, a trapezoidal hole is provided on the triangular portion, and a rectangular hole is provided on the rectangular portion, and No. 2 supporting plates are symmetrically installed on both sides of the rectangular portion, and the inner sides of the two groups of No. 2 supporting plates are fixedly connected with anti-slip protrusions.

[0016] Preferably, a No. 1 supporting piece is symmetrically installed on both sides of the triangular portion, and a weakening groove is provided on one side of the two groups of No. 1 supporting pieces.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, by setting a clamping piece, the multimeter can be worn on the arm according to the thickness of the staff's arm. The clamping piece is adapted to the contour of the arm and can be clipped onto the user's arm, making it more comfortable when the human body comes into contact with it and not easy to fall off, solving the problem that the multimeter is inconvenient to carry, and thus avoiding the phenomenon of the multimeter falling from a high altitude during high-altitude operations, thereby improving the practicality of the device.

[0019] By setting the arc-shaped bottom plate, the No. 1 supporting piece and the No. 2 supporting piece as an integrated structure, and the bottoms of the No. 1 supporting piece and the No. 2 supporting piece are provided with outward-bent rounded corners, which can reduce the discomfort caused by wearing when in contact with the skin. At the same time, rectangular slots are opened on the surface of the No. 1 supporting piece and the No. 2 supporting piece, thereby increasing the breathability when wearing.

[0020] By providing a storage component, not only can the connection between the main body and the curved bottom plate be achieved, but the test leads, probes and wiring harnesses can also be stored, so that the storage effect of the overall structure of the multimeter is better and the operation method is simple.

[0021] By setting up a cavity inside the clip that is adapted to the shape of the connecting rod, there is an opening on the outer wall away from the main body, and the opening is provided with outward-turned rounded corners. When the connecting rod is inserted into the clip from bottom to top, the corrugations on both sides expand outward under the squeezing of the connecting rod, so that the connecting rod and the clip overlap. In addition, since the limiting disc is adapted to the shape of the limiting groove, not only can the connecting rod and the clip be quickly connected, but also the clip can be prevented from moving left and right on the outer wall of the connecting rod.

[0022] Through the provided storage components and clamps, the main body can be fixed to the staff's arms, and the test leads, probes and wiring harnesses can be stored. The overall operation method is simple and efficient, and the clamps are more comfortable to wear, making it easy to carry the testing tools with you and will not fall off easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and enable those skilled in the relevant art to make and use the invention.

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the circuit breaker maintenance mechanism;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the main body and the support base;

[0026] Figure 3 A schematic diagram of the three-dimensional structure for connecting round rods;

[0027] Figure 4for Figure 3 A schematic diagram of the partially enlarged three-dimensional structure at center A;

[0028] Figure 5 for Figure 3 A schematic diagram of the partially enlarged three-dimensional structure at point B in the middle;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure with a curved bottom plate;

[0030] Figure 7 A schematic diagram of the three-dimensional structure of the clamping member and the storage assembly;

[0031] Figure 8 It is a schematic diagram of the sectional three-dimensional structure of the clip and the connecting round rod.

[0032] [Reference Signs]

[0033] 1. Main body; 101. Notch; 2. Display screen; 3. Jack; 4. Clip; 41. C-shaped notch; 5. Connecting rod; 51. Outward opening; 52. Semi-arc groove; 53. Mounting part; 531. Outward part; 532. Probe space; 6. Arc-shaped bottom plate; 61. Triangular part; 62. Rectangular part; 7. Outward rounded corner; 8. Limiting groove; 9. Support seat; 10. Limiting disc; 11. Arc-shaped baffle; 12. Test lead; 13. Connecting plate; 14. First U-shaped groove; 15. Limiting elastic piece; 16. Probe; 17. Arc-shaped base; 18. Elastic protrusion; 19. Second U-shaped groove; 20. No. 1 supporting piece; 21. Weakened groove; 22. No. 2 supporting piece; 23. Anti-slip protrusion.

[0034] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, devices and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0035] The following describes a circuit breaker maintenance mechanism provided by the present invention in detail with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are optimal and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0036] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0037] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0038] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0039] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0040] like Figures 1 to 8As shown, an embodiment of the present invention provides a circuit breaker maintenance mechanism, comprising a main body 1, a display screen 2 fixedly connected to the top of the main body 1, four sockets 3 formed on the top of the main body 1, a support base 9 provided at the bottom of the main body 1, and a notch 101 formed at the bottom of the main body 1; a storage assembly provided on the main body 1, a clamping member provided on the storage assembly, the clamping member being able to be placed on the user's arm; the storage assembly is used to fix the relative position between the main body 1 and the clamping member. The support base 9 has a connecting end at one end, which is rotatably connected to the main body 1, and the other end is a free end, which is able to be stored in the notch 101 at the bottom of the main body 1. In the presence of an operating platform, the circuit breaker maintenance mechanism of this embodiment does not need to be equipped with a storage component and a clamping member. One end of the support base 9 is connected to the main body 1 through a semi-rotating shaft, so that a sixty-degree angle can be generated between the support base 9 and the main body 1. When it is needed, the support base 9 is pushed out at the groove 101, so that the end of the support base 9 away from the main body 1 is placed on the surface of the operating platform. The support base 9, the main body 1 and the surface of the operating platform form a triangle, thereby achieving the effect of being placed on the surface of the platform, which is convenient for detection.

[0041] In this embodiment, if Figures 2 to 3As shown, the storage assembly includes clips 4 symmetrically installed at the bottom of the main body 1, the inner walls of the two groups of clips 4 are plugged with connecting rods 5, the outer walls of the two groups of connecting rods 5 are fixedly connected to the same arc-shaped bottom plate 6, and the middle positions of the two groups of clips 4 are provided with limiting grooves 8, the outer walls of the two groups of clips 4 are fixedly connected with outward-turned fillets 7, and the outer walls of the two groups of clips 4 are provided with C-shaped notches 41. The outer walls of the connecting rods 5 are fixedly connected to limiting circular pieces 10, and an arc-shaped baffle 11 is installed at the middle position of the connecting rods 5. The middle position of the arc-shaped baffle 11 is fixedly connected to a connecting plate 13, and the inner wall of the connecting rod 5 is plugged with a test lead 12, and the test lead 12 is adapted to the shape of the connecting rod 5. Specifically, the clip 4 has a C-shaped notch 41 inside that matches the shape of the connecting rod 5. It has an opening away from the outer wall of the main body 1. Each opening has an outward-turned rounded corner 7, and the inner diameter of the opening is smaller than that of the connecting rod 5. The two sides of the clip 4 are corrugated. When the main body 1 needs to be installed on the storage assembly for wearing, the connecting rod 5 is inserted into the clip 4 from bottom to top. During the insertion process, the connecting rod 5 squeezes the clip 4, causing the clip 4 to elastically deform. Under the pressure of the connecting rod 5 and the limiting disc 10, the corrugations on both sides of the clip 4 expand outward until the limiting disc 10 snaps into the limiting groove 8, completing the installation of the main body 1 and the storage assembly. The limiting disc 10 is shaped to match the limiting groove 8, which not only allows for quick docking of the connecting rod 5 and the clip 4, but also prevents the clip 4 from moving left and right on the outer wall of the connecting rod 5. The above structure not only allows for quick installation of the clip 4 and the connecting rod 5, but also ensures good stability after installation. The connecting rod 5 and the curved baffle 11 are an integrated structure, with the curved baffle 11 located in the middle of the connecting rod 5. The connecting plate 13 connects the two connecting rods 5. The connecting plate 13 and the curved bottom plate 6 are an integrated structure, with the connecting plate 13 connected to the curved plate in the middle of the curved bottom plate 6.

[0042] An outward-turned opening 51 is fixedly connected to one end of the connecting rod 5 near the limiting disc 10. A semi-arc-shaped groove 52 is provided on the outer wall of the outward-turned opening 51 near the limiting disc 10. Specifically, the inner wall of the arc-shaped baffle 11 is aligned with the outer wall of the test lead 12, and the arc-shaped baffle 11 has an opening greater than half in the circumferential direction. After the test lead 12 is inserted into the arc-shaped baffle 11, a portion of the outer wall of the test lead 12 is exposed to the outside, making it convenient to remove the test lead 12. An outward-turned opening 51 is provided on the connecting rod 5 at the end in contact with the arc-shaped baffle 11. The inner diameter of the outward-turned opening 51 is smaller than that of the arc-shaped baffle 11, and the outward-turned opening 51 has an outward-turned rounded corner. Part of the test lead 12 is inserted inside the outward-turned opening 51 of the connecting rod 5, and the other part is inserted inside the arc-shaped baffle 11. The provision of the outward-turned opening 51 of the connecting rod 5 facilitates the clamping and fixing of the test lead 12. A semi-arc groove 52 is provided on the outer wall of the connecting rod 5 at the outward-turned opening 51, which partially separates the outward-turned opening 51 from the connecting rod 5. During the process of inserting the test lead 12 into the outward-turned opening 51, the outward-turned opening 51 expands smoothly. After the test lead 12 is fully inserted into the outward-turned opening 51, the outward-turned opening 51 firmly holds the test lead 12, thereby improving the storage effect of the test lead 12.

[0043] In this embodiment, if Figure 4 As shown, the end of the connecting rod 5 away from the limiting disc 10 is fixedly connected to a mounting portion 53, an outward-turned portion 531 is fixedly connected to the outer wall of the mounting portion 53, and a probe space 532 is defined on the outer wall of the mounting portion 53. The end of the mounting portion 53 away from the limiting disc 10 is defined by a first U-shaped groove 14. Two sets of limiting elastic pieces 15 are symmetrically installed on both sides of the first U-shaped groove 14. The limiting elastic pieces 15 are adapted to the shape of the side surfaces of the probe 16. The end of the connecting rod 5 away from the limiting disc 10 is the mounting portion 53. The mounting portion 53 is generally open and has an outward-turned portion 531 at the opening. The outward-turned portion 531 has an outward-turned rounded corner. The inner side of the mounting portion 53 has a probe space 532. When the probe 16 is inserted into the probe space 532, the mounting portion 53 undergoes elastic deformation and expands outward. After the probe 16 is fully inserted into the probe space 532, the mounting portion 53 tightly embraces the probe 16, thereby fixing the position of the probe 16. Specifically, a first U-shaped groove 14 is opened at the outer end of the mounting portion 53. The first U-shaped groove 14 is U-shaped. The probe 16 is inserted into the probe insertion space. Two sets of limiting elastic sheets 15 are pressed against both sides of the probe 16. The limiting elastic sheets 15 are corrugated and elastic, which increases the fixing effect of the probe 16.

[0044] In this embodiment, if Figure 5As shown, a second U-shaped groove 19 is provided at the bottom of the mounting portion 53, and an arc-shaped base 17 is provided on the outer wall of the connecting rod 5 away from the second U-shaped groove 19, and two groups of elastic protrusions 18 are symmetrically installed on the top of the arc-shaped base 17. Specifically, an arc-shaped base 17 is provided on the outer wall of the connecting rod 5 close to the main body 1. The arc-shaped base 17 is semi-arc-shaped and its shape is adapted to the main body 1, which can avoid collision between the main body 1 and the connecting rod 5 during use. More specifically, the elastic protrusions 18 on the surface of the arc-shaped base 17 are made of soft rubber material, and their tops are smooth, which further buffers and absorbs pressure, thereby improving the stability of the device. A second U-shaped groove 19 is provided at the bottom of the connecting rod 5, which can store the wiring harness between the above-mentioned connecting probe 16 and the test lead 12.

[0045] In this embodiment, if Figure 6 As shown, the clamping member includes a triangular portion 61 and a rectangular portion 62. The triangular portion 61 is triangular in shape, while the rectangular portion 62 is rectangular in shape. A trapezoidal hole is provided in the triangular portion 61, while a rectangular hole is provided in the rectangular portion 62. Two supporting plates 22 are symmetrically mounted on either side of the rectangular portion 62, and anti-slip bumps 23 are fixedly attached to the inner sides of both sets of second supporting plates 22. The curved base plate 6 is symmetrically mounted on both sides away from the second supporting plates 22, and both sets of first supporting plates 20 have weakening grooves 21 on one side. The curved base plate 6 is generally curved to conform to the contours of the arm. The curved bottom plate 6, the No. 1 supporting piece 20 and the No. 2 supporting piece 22 are an integrated structure, and the bottoms of the No. 1 supporting piece 20 and the No. 2 supporting piece 22 are provided with outward-bent rounded corners, which can reduce the discomfort caused when wearing when in contact with the skin. At the same time, rectangular slots are opened on the surface of the No. 1 supporting piece 20 and the No. 2 supporting piece 22, thereby increasing the breathability when wearing.

[0046] Specifically, the second support piece 22 located on both sides of the rectangular portion 62 is adapted to the thicker position of the arm near the rear end, and the connection between the second support piece 22 and the curved bottom plate 6 is relatively weak, which allows the second support piece 22 to bend outward, so that the second support piece 22 can be worn on both sides of the arm. At the same time, the middle part of the second support piece 22, on the side close to the skin, is provided with an anti-slip protrusion 23, and the anti-slip protrusion 23 is made of rubber material, which further increases the stability of wearing. The triangular portion 61 of the curved bottom plate 6 cooperates with the first support piece 20 to adapt to the thinner position of the arm near the front end, and the weakening groove 21 opened at the rounded corner of the first support piece 20 near the curved bottom plate 6 can allow the first support piece 20 to expand outward from the position of the weakening groove 21 during wearing, further improving the comfort of the staff when wearing. The above wearing method is not only simple and efficient, but also does not require the use of any auxiliary tools.

[0047] The working principle provided by the present invention is that when in use, the staff first aligns the limiting disc 10 with the limiting groove 8, inserts the connecting rod 5 into the clamping piece 4 from bottom to top, so that the main body 1 can be installed on the outer wall of the connecting rod 5, and then fits the arc bottom plate 6 on the staff's arm from top to bottom, thereby fixing the main body 1 on the arm. During use, the test lead 12 can be taken out at the position of the arc baffle 11, and the probe 16 can be pulled out and plugged into the jack 3 to measure the current, voltage and resistance.

[0048] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. To provide a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments of this invention, but those skilled in the art will be able to fully understand this invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A circuit breaker maintenance mechanism, comprising a main body, characterized in that: The top of the main body is fixedly connected to a display screen, the top of the main body is provided with four jacks, the bottom of the main body is provided with a support base, and the bottom of the main body is provided with a notch; A storage assembly is provided on the main body, and a clamping piece is provided on the storage assembly, and the clamping piece can be put on the user's arm; The storage assembly includes clips symmetrically installed at the bottom of the main body, the inner walls of the two groups of clips are connected with connecting round rods, the inner walls of the connecting round rods are connected with test leads, and the outer walls of the two groups of connecting round rods are fixedly connected to the same arc-shaped bottom plate, and the arc-shaped bottom plate is connected to the clamping piece.

2. The circuit breaker maintenance mechanism according to claim 1, characterized in that: A C-shaped notch is provided on the clip, a limiting groove is provided at a middle position in the C-shaped notch, and an outward-turned rounded corner is provided on the outer wall of the clip.

3. The circuit breaker maintenance mechanism according to claim 2, characterized in that: The outer wall of the connecting round rod is fixedly connected to a limited position circular piece, the middle position of the connecting round rod is provided with an arc-shaped baffle, and the middle position of the arc-shaped baffle is fixedly connected to a connecting plate.

4. The circuit breaker maintenance mechanism according to claim 3, characterized in that: An outward-turning opening is provided on the connecting round rod near the arc-shaped baffle, and a semi-arc-shaped groove is provided on the connecting round rod at the outward-turning opening.

5. The circuit breaker maintenance mechanism according to claim 4, characterized in that: The end of the connecting round rod away from the limiting disc is fixedly connected to the mounting portion, the outer wall of the mounting portion is fixedly connected to the outward turning portion, the outer wall of the mounting portion is provided with a probe space, and the end of the mounting portion away from the limiting disc is provided with a first U-shaped groove, and two groups of limiting elastic sheets are symmetrically installed on both sides of the first U-shaped groove.

6. The circuit breaker maintenance mechanism according to claim 5, characterized in that: A probe is inserted into the inner wall of the probe space, and the limiting elastic piece is adapted to the shape of the probe.

7. The circuit breaker maintenance mechanism according to claim 5, characterized in that: A second U-shaped groove is provided on the outer wall of the mounting portion, an arc-shaped base is fixedly connected to the outer wall of the mounting portion away from the second U-shaped groove, and two groups of elastic protrusions are symmetrically installed on the top of the arc-shaped base.

8. The circuit breaker maintenance mechanism according to claim 1, characterized in that: The clamping part includes a triangular part and a rectangular part. A trapezoidal hole is opened on the triangular part, and a rectangular hole is opened on the rectangular part. No. 2 supporting plates are symmetrically installed on both sides of the rectangular part, and the inner sides of the two groups of No. 2 supporting plates are fixedly connected with anti-slip protrusions.

9. The circuit breaker maintenance mechanism according to claim 8, characterized in that: A No. 1 supporting piece is symmetrically installed on both sides of the triangular portion, and a weakening groove is opened on one side of the two groups of No. 1 supporting pieces.

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