Insulation sleeve for circuit breaker contact arm

Abstract

The utility model relates to the technical field of electric power, in particular to an insulating sleeve for a contact arm of a circuit breaker, which comprises a protected body, the protected body comprises a contact cover, a cylinder, a sheath and a snap ring, the cylinder is attached to the annular side surface of the protected body, the contact cover is fixedly connected to the side surface of the cylinder, the sheath is attached to the annular side surface of the cylinder, and the snap ring is fixedly connected to the side surface of the cylinder. The clamping ring is attached to the annular side face of the protective sleeve, the cylinder body is attached to the annular side face of the protected body, the protective sleeve is attached to the annular side face of the cylinder body, layered protection is achieved, the protected body and the clamping ring are matched with the cylinder body and the protective sleeve to be connected in a fastened mode, it is ensured that the cylinder body and the protective sleeve are free of deviation or gaps, dead corners are reduced through the design, and accumulated dust or pollutants at the dead corners are reduced; in addition, damage-free disassembly is achieved, and parts are convenient to maintain or replace.

Description

Technical Field

[0001] This utility model relates to the field of power technology, specifically to an insulating sleeve for a circuit breaker contact arm. Background Technology

[0002] Insulating sleeves are protective insulation products used for the terminals of electrical equipment. They are made of silicone rubber and molded at high temperature, possessing excellent electrical properties, aging resistance, and resistance to high and low temperatures. They can effectively prevent power outages caused by human contact, small animals touching the terminals, etc. The front section of the insulating sleeve is a contact cover, and the middle section is a contact arm conductor cover, forming a complete coverage of the contact and contact arm conductors. The diameter of the contact cover is larger than that of the middle section cover, and the stepped design enhances mechanical strength and insulation reliability. The detachable insulating sleeve adopts a snap-fit ​​structure, which can be disassembled without damage by pressing the snap or using special tools (such as an insulating sleeve separator), facilitating maintenance or replacement of parts. The protective sleeve can easily create "dead corners" in the insulating sleeve, accumulating dust or contaminants and reducing insulation performance. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model provides an insulating sleeve for circuit breaker contact arms, which has the following advantages.

[0004] To achieve the above-mentioned functional objectives, this utility model provides the following technical solution: an insulating sleeve for a circuit breaker contact arm, characterized in that: it includes a protected body, the protected body including a contact cover, a cylinder, a sheath, and a retaining ring, the cylinder is fitted to the annular side of the protected body, the contact cover is fixedly connected to the side of the cylinder, the sheath is fitted to the annular side of the cylinder, the retaining ring is fitted to the annular side of the sheath, the sheath near the retaining ring has a groove fixedly connected, the retaining ring is fitted to the annular side of the groove, and the protected body is a contact arm.

[0005] Furthermore, the cylinder includes a top arc and a movable arc. The top arc is attached to one side of the cylinder, and the movable arc is slidably connected to the side of the top arc. Slides are fixedly connected to both sides of the top arc. The movable arc includes a fixed groove, a fixed arm, and pulleys. There are two fixed grooves, and each fixed groove is fixedly connected to the plane end of the movable arc. The fixed arm and pulleys include, but are not limited to, six. The fixed arm is fixedly connected to the top of the fixed groove, and the pulleys are rotatably connected to the side of the fixed arm.

[0006] Furthermore, the sheath includes an outer top arc and an outer moving arc. The outer moving arc is slidably connected to one side of the outer top arc. The outer moving arc includes a fixed sliding groove, side arms, and a moving wheel. The fixed sliding groove is fixedly connected to both ends of the outer moving arc. The number of side arms and moving wheels is the same, including but not limited to six. The side arms are evenly arranged and fixedly connected to both sides of the top of the fixed sliding groove. The moving wheel is rotatably connected between the two side arms. The top arc and the outer top arc, as well as the moving arc and the outer moving arc, have the same structure.

[0007] Furthermore, the retaining ring includes a rotating arc, a rotating post, a fitting opening, and a stud. The rotating arc includes two parts, and each rotating arc is fitted to the annular side of the cylinder. The rotating post is connected to the bottom end of the two rotating arcs. The fitting opening includes two parts, and each fitting opening is fixedly connected to the top end of the rotating post. The stud is threadedly connected to the middle of the two fitting openings. The fitting openings are concave and convex, respectively, and fit together.

[0008] Compared with the prior art, the advantages of this utility model are as follows: the cylinder body fits into the annular side of the protected body, and the sheath fits into the annular side of the cylinder body, providing layered protection. The protected body and the retaining ring are used to securely connect the cylinder body and the sheath, ensuring that the cylinder body and the sheath are not misaligned or have gaps. In addition, this design reduces "dead corners", reducing the accumulation of dust or contaminants in "dead corners" that could reduce insulation performance. Furthermore, it allows for non-destructive disassembly, facilitating maintenance or replacement of components. Attached Figure Description

[0009] Figure 1 This is a three-dimensional partial structural diagram of an insulating sleeve for a circuit breaker contact arm according to the present invention.

[0010] Figure 2 This is a schematic diagram of the cylindrical structure of an insulating sleeve for a circuit breaker contact arm according to the present invention.

[0011] Figure 3 This is a schematic diagram of the sheath structure of an insulating sleeve for a circuit breaker contact arm according to the present invention.

[0012] Figure 4 This is a top view of the insulating sleeve for a circuit breaker contact arm according to the present invention.

[0013] Figure 5 This is a partial front view of the insulating sleeve for a circuit breaker contact arm according to the present invention.

[0014] Figure 6 This is a three-dimensional side view of the insulating sleeve for a circuit breaker contact arm according to the present invention.

[0015] Figure 7 This is a three-dimensional structural diagram of an insulating sleeve for a circuit breaker contact arm according to the present invention.

[0016] The attached figures are labeled as follows: Protected body 1, Contact cover 2, Cylinder 3, Sheath 4, Snap ring 5, Top arc 31, Moving arc 32, Fixed groove 321, Fixed arm 322, Pulley 323, Outer top arc 41, Outer moving arc 42, Fixed sliding groove 421, Side arm 422, Moving wheel 423, Rotating arc 51, Rotating column 52, Fitting opening 53, Stud 54. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. For embodiments, please refer to... Figure 1-7 An insulating sleeve for a circuit breaker contact arm, characterized in that it includes a protected body 1, the protected body 1 including a contact cover 2, a cylinder 3, a sheath 4, and a retaining ring 5, the cylinder 3 being fitted to the annular side of the protected body 1, the contact cover 2 being fixedly connected to the side of the cylinder 3, the sheath 4 being fitted to the annular side of the cylinder 3, the retaining ring 5 being fitted to the annular side of the sheath 4, the sheath 4 having a groove fixedly connected to the side near the retaining ring 5, the retaining ring 5 being fitted to the annular side of the groove, and the protected body 1 being a contact arm.

[0018] The cylinder 3 includes a top arc 31 and a movable arc 32. The top arc 31 is attached to one side of the cylinder 3, and the movable arc 32 is slidably connected to the side of the top arc 31. Slide tracks 311 are fixedly connected to both sides of the top arc 31. The movable arc 32 includes a fixed groove 321, a fixed arm 322, and a pulley 323. There are two fixed grooves 321, and each fixed groove 321 is fixedly connected to the plane end of the movable arc 32. The fixed arm 322 and the pulley 323 include, but are not limited to, six. The fixed arm 322 is fixedly connected to the top of the fixed groove 321, and the pulley 323 is rotatably connected to the side of the fixed arm 322.

[0019] The sheath 4 includes an outer top arc 41 and an outer moving arc 42. The outer moving arc 42 is slidably connected to one side of the outer top arc 41. The outer moving arc 42 includes a fixed sliding groove 421, side arms 422, and moving wheels 423. The fixed sliding groove 421 is fixedly connected to both ends of the outer moving arc 42. The number of side arms 422 and moving wheels 423 is the same, including but not limited to six. The side arms 422 are evenly arranged and fixedly connected to both sides of the top of the fixed sliding groove 421. The moving wheels 423 are rotatably connected between the two side arms 422. The top arc 31 and the outer top arc 41, as well as the moving arc 32 and the outer moving arc 42, have the same structure.

[0020] The retaining ring 5 includes a rotating arc 51, a rotating post 52, a fitting opening 53, and a stud 54. There are two rotating arcs 51, and each rotating arc 51 is fitted to the annular side of the cylinder 3. The rotating post 52 is connected to the bottom end of the two rotating arcs 51. There are two fitting openings 53, and each fitting opening 53 is fixedly connected to the top end of the rotating post 52. The stud 54 is threadedly connected to the middle of the two fitting openings 53. The fitting openings 53 are concave and convex and fit together with each other.

[0021] During installation, first attach the top arc 31 to the annular side of the cylinder 1, then move the movable arc 32 into the slide rail 311 of the top arc 31. The pulley 323 rotates along the fixed groove 321 and the slide rail 311, moving from the rear end of the slide rail 311 to the front end, connecting the top arc 31 and the movable arc 32. The semi-circular contact covers 2 on both sides are then attached to form a cylinder. Next, attach the inner arc of the outer top arc 41 to the outer arc of the cylinder 3, and insert the outer movable arc 42 into the slide rail 311 inside the outer top arc 41. The movable wheel 423 moves along the fixed groove 421 and the slide rail 311, inserting the outer movable arc 42 into the outer top arc 41 for connection. Hold the fitting opening 53 and pry it open. The rotating arc 51 opens along the rotating column 52 and the stud 54, attaching the rotating arc 51 to the annular side of the sheath.

[0022] During disassembly, the spiral stud 54 is moved away from the fitting opening 53. The side of the fitting opening 53 is held by hand and the fitting opening is pried open. The rotating arc 51 is opened along the rotating column 52 and moved away from the annular side of the sheath. The outer moving arc 42 is pulled away from the side of the slide 311 inside the outer top arc 41. The shifting wheel 423 moves along the fixed slide groove 421 and the slide 311, moving the inner side of the outer top arc 41 away from the outer side of the cylinder 3. The outer moving arc 42 is disconnected from the outer top arc 41. Then the moving arc 32 is moved away from the side of the slide 311 of the top arc 31. The top arc 31 is moved away from the annular side of the cylinder 1. At the same time, the pulley 323 rotates along the fixed groove 321 and the slide 311, moving from the front end of the slide 311 to the rear end, separating the top arc 31 and the moving arc 32. The semi-circular contact covers 2 on both sides are disconnected.

[0023] Working principle: The cylinder 3 is attached to the annular side of the protected body 1, and the sheath 4 is attached to the annular side of the cylinder 3, providing layered protection. The protected body and the retaining ring 5 are used to securely connect the cylinder 3 and the sheath 4, ensuring that the cylinder 3 and the sheath 4 are not misaligned or have gaps. This design also reduces "dead corners," preventing the accumulation of dust or contaminants and reducing insulation performance. It also allows for non-destructive disassembly, facilitating maintenance or replacement of parts. The moving arc 32 is moved and inserted into the slide rail 311 of the top arc 31. The pulley 323 rotates along the fixed groove 321 and the slide rail 311, moving from the rear end of the slide rail 311. Move to the front end and connect the top arc 31 and the moving arc 32. The semi-circular contact covers 2 on both sides are then attached to form a cylinder. Then, attach the inner side of the outer top arc 41 to the outer side of the cylinder 3. Insert the outer moving arc 42 into the slide 311 inside the outer top arc 41. Move the wheel 423 along the fixed slide groove 421 and the slide 311. Insert the outer moving arc 42 into the outer top arc 41 and connect it. Hold the fitting opening 53 and pry it open. Open the rotating arc 51 along the rotating column 52. Attach the stud 54 to the annular side of the sheath. First, attach the top arc 31 to the annular side of the cylinder 1.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An insulating boot for a circuit breaker contact arm, characterized by: The protected body (1) includes a contact cover (2), a cylinder (3), a sheath (4), and a retaining ring (5). The cylinder (3) is attached to the annular side of the protected body (1). The contact cover (2) is fixedly connected to the side of the cylinder (3). The sheath (4) is attached to the annular side of the cylinder (3). The retaining ring (5) is attached to the annular side of the sheath (4). The sheath (4) has a groove fixedly connected to the side near the retaining ring (5). The retaining ring (5) is attached to the annular side of the groove.

2. An insulating cover for a circuit breaker toggle arm as defined in Claim 1 wherein: The cylinder (3) includes a top arc (31) and a moving arc (32). The top arc (31) is attached to one side of the cylinder (3). The moving arc (32) is slidably connected to the side of the top arc (31). Slides (311) are fixedly connected to both sides of the top arc (31). The moving arc (32) includes a fixed groove (321), a fixed arm (322), and a pulley (323). There are two fixed grooves (321), and each fixed groove (321) is fixedly connected to the plane end of the moving arc (32). There are, but not limited to, six fixed arms (322) and pulleys (323). The fixed arms (322) are fixedly connected to the top of the fixed grooves (321), and the pulleys (323) are rotatably connected to the side of the fixed arms (322).

3. An insulating cover for a circuit breaker toggle arm as defined in Claim 1 wherein: The sheath (4) includes an outer top arc (41) and an outer moving arc (42). The outer moving arc (42) is slidably connected to one side of the outer top arc (41). The outer moving arc (42) includes a fixed sliding groove (421), side arms (422), and a moving wheel (423). The fixed sliding groove (421) is fixedly connected to both ends of the outer moving arc (42). The side arms (422) and the moving wheel (423) are of the same number, including but not limited to six. The side arms (422) are evenly arranged and fixedly connected to both sides of the top of the fixed sliding groove (421). The moving wheel (423) is rotatably connected to the middle of the two side arms (422).

4. An insulating cover for a circuit breaker toggle arm as defined in Claim 1 wherein: The retaining ring (5) includes a rotating arc (51), a rotating post (52), a fitting port (53), and a stud (54). The rotating arc (51) includes two parts, and each rotating arc (51) fits against the annular side of the cylinder (3). The rotating post (52) is connected to the bottom end of the two rotating arcs (51). The fitting port (53) includes two parts, and each fitting port (53) is fixedly connected to the top end of the rotating post (52). The stud (54) is threadedly connected to the middle of the two fitting ports (53).

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