Full-sealed disconnecting switch anti-falling structure
By designing a combined structure of a conductive rod, a first conductive member and a limit boss in a fully sealed isolating switch, combining sealed insulating member and flat contact, the problem of corrosion and short circuit in the conductive part of the existing isolating switch is solved, and the problem of corrosion and short circuit is achieved. Fully sealed and highly reliable isolating switch.
Patent Information
- Application Number
- CN202421096160.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The conductive parts of existing outdoor isolation switches are easily affected by the environment, resulting in corrosion and inconvenient operation, and are prone to short circuits, resulting in frequent power outages.
A fully sealed isolation switch anti-fall structure is designed, adopting a conductive rod and a first conductive member that is fixed to it. The end of the first conductive member is equipped with a limiting boss, and combining the sealing insulator and a flat contact structure to realize the conductive part. Fully sealed.
Through the fully sealed design, corrosion and short-circuit problems of conductive parts are avoided, the reliability and operating stability of the isolating switch are improved, and production costs are reduced.
Smart Images
Figure CN222440445U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of electrical technology, and particularly relates to a fully sealed isolating switch anti-drop structure. Background Art
[0002] The existing outdoor isolating switch blades and contacts are exposed to the air, which are easily affected by the environment, resulting in corrosion, inconvenient operation and other problems. In addition, falling debris or branches overlapping the exposed conductive parts are prone to short circuit problems, including frequent power outages caused by various foreign objects, affecting people's production and life.
[0003] The utility model with announcement number CN218676914U discloses a fully sealed structure isolating switch. The key points of its technical solution include the overall adoption of a three-phase box structure, high-voltage bushing inlet and outlet lines, a fully sealed shell, SF6 gas filled inside, the isolating switch is located in the middle of the tank body, with a horizontal fracture and an opening and closing indicator on the outside. Grounding switch modules are optional at both ends of the tank body to achieve single and double grounding requirements. According to user requirements, transformers, lightning arresters and other equipment can be added to form an open combination electrical appliance; the isolating switch is equipped with an electric / manual operating mechanism to achieve opening and closing operations. Although the fully sealed structure isolating switch can solve the problems of abnormal heating of the conductive part of the traditional open isolating switch that is easily affected by the environment and the jamming of the transmission part, it improves the operating reliability of the isolating switch and the simplicity of sealing is further improved. Summary of the invention
[0004] The purpose of the utility model is to provide a fully sealed isolating switch anti-drop structure to address the deficiencies of the prior art, improve the isolating blade structure, attach a limit function, and reduce production costs.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0006] A fully sealed isolating switch anti-drop structure comprises an isolating knife assembly and a static contact assembly arranged at intervals, wherein the isolating knife assembly comprises a conductive rod and a first conductive member fixed thereto, and a sealing insulating member is sleeved outside the conductive rod and the first conductive member, and a limiting boss is convexly provided at the end of the first conductive member;
[0007] When the isolating blade assembly is engaged with the stationary contact assembly, the limiting boss of the first conductive member is clamped in the stationary contact assembly.
[0008] The stationary contact assembly comprises a flat contact and an insulating bracket sleeved outside the flat contact;
[0009] When the first conductive member of the isolating blade assembly is engaged with the flat contact, the corresponding sealing cover of the sealing insulating member is arranged on the insulating bracket.
[0010] The conductive rod is arranged perpendicularly to the first conductive member.
[0011] An insulating pull ring is also fixedly provided at the end of the conductive rod.
[0012] The conductive rod and the first conductive member are fixedly connected by connecting bolts.
[0013] The beneficial effects of the utility model are:
[0014] (1) The anti-drop structure of the fully sealed isolating switch is achieved by setting the isolating knife assembly as a conductive rod and a first conductive member fixed thereto, and a limiting boss is convexly provided at the end of the first conductive member. When the isolating knife assembly is engaged with the static contact assembly, the limiting boss of the first conductive member is clamped in the static contact assembly, and the limiting boss is limited to ensure that it does not fall off in a natural state. When maintenance is required, the pull ring is pulled by the operating rod to realize the isolating knife opening, and the isolating knife limiting assembly is eliminated, thereby reducing the overall external dimensions after the isolating knife is opened, which is more conducive to current installation.
[0015] (2) The end of the first conductive member is provided with a protruding limiting boss, which can reduce the need for additional isolation knife limiting components and thus reduce production costs.
[0016] (3) When the first conductive part of the isolating blade assembly is engaged with the flat contact, the corresponding sealing cover of the sealing insulating part is arranged on the insulating bracket, and the isolating blade and the flat contact are sealed in the insulating shell, so that the conductive parts of the isolating switch are fully sealed. The static contact assembly uses a flat contact, which is simple to fix the contact and easy to seal later.
[0017] (4) The stationary contact assembly is set as a flat contact structure to ensure that the first conductive part is in reliable contact with the flat contact when the isolating knife is closed.
[0018] (5) The flat blade head adopts standard parts, which is low in cost, easy to achieve the sealing of the isolation blade static contact, and has high installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the utility model;
[0020] Figure 2 It is a cross-sectional schematic diagram of the guide part of the utility model;
[0021] Figure 3 It is a partial three-dimensional schematic diagram of the guide part of the utility model. DETAILED DESCRIPTION
[0022] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0023] The utility model provides a fully sealed isolating switch anti-drop structure, such as Figures 1 to 3 shown.
[0024] A fully sealed isolating switch anti-drop structure includes an isolating blade assembly and a static contact assembly arranged at intervals, and the isolating blade assembly includes a conductive rod 4 and a first conductive member 3 fixed thereto. In this embodiment, the conductive rod 4 and the first conductive member 3 are fixedly connected by connecting bolts, and the conductive rod 4 and the first conductive member 3 are arranged vertically; the conductive rod 4 and the first conductive member 3 are also sleeved with a sealing insulating member 2, and the end of the first conductive member 3 is convexly provided with a limiting boss 31; the static contact assembly includes a flat contact 5 and an insulating bracket 6 sleeved on the outside of the flat contact 5. When the first conductive member 3 of the isolating blade assembly is engaged with the flat contact 5, the corresponding sealing cover of the sealing insulating member 2 is arranged on the insulating bracket 6, and the isolating blade and the flat contact are sealed in the insulating shell, so that the conductive part of the isolating switch is fully sealed. The static contact assembly uses a flat contact, and the contact is simple to fix and easy to seal later.
[0025] During assembly, the flat contact 5 is installed on the T-shaped outlet terminal, fastened with a fixing screw, and the process hole on the insulating bracket is blocked by a silicone plug 51; and the conductive sheets inside the flat contact 5 are tightened by a spring, which has a self-guiding function to ensure that the moving contact of the isolation knife switch is in reliable contact with the flat contact.
[0026] In order to facilitate engagement and separation, an insulating pull ring 1 is also fixed at the end of the conductive rod 4, so that the staff can pull the insulating pull ring 1 with an operating rod to separate the isolation knife assembly from the static contact assembly, so that the limiting boss 31 at the end of the first conductive member 3 is separated from the flat contact 5.
[0027] When the isolating knife assembly is engaged with the stationary contact assembly, the limiting boss 31 of the first conductive member 3 is clamped in the stationary contact assembly, and the limiting boss 31 is limited to ensure that it does not fall off in the natural state; when maintenance is required, the insulating pull ring 1 is pulled by the operating rod to drive the limiting boss 31 to separate from the flat contact 5, thereby realizing the isolating knife opening.
[0028] The fully sealed isolating switch anti-drop structure is achieved by setting the isolating knife assembly as a conductive rod and a first conductive member fixed thereto, and a limiting boss is convexly provided at the end of the first conductive member. When the isolating knife assembly is engaged with the static contact assembly, the limiting boss of the first conductive member is clamped in the static contact assembly, and the limiting boss is limited to ensure that it does not fall off in a natural state. When maintenance is required, the pull ring is pulled by the operating rod to realize the isolating knife opening, and the isolating knife limiting assembly is eliminated, thereby reducing the overall external dimensions after the isolating knife is opened, which is more conducive to current installation.
[0029] If the words "first", "second" and so on are used in this patent to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing the utility model and simplifying the description, and the above words have no special meaning.
[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
[0031] In the description of the present invention, it is necessary to understand that the terms "front", "rear", "left", "right", "center", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the protection content of the present invention.
Claims
1. A fully sealed isolating switch anti-drop structure, characterized in that: The isolating knife assembly and the static contact assembly are arranged at intervals, and the isolating knife assembly includes a conductive rod and a first conductive member fixed thereto, and a sealing insulating member is sleeved outside the conductive rod and the first conductive member, and a limiting boss is convexly provided at the end of the first conductive member; When the isolating blade assembly is engaged with the stationary contact assembly, the limiting boss of the first conductive member is clamped in the stationary contact assembly.
2. A fully sealed isolating switch anti-drop structure according to claim 1, characterized in that: The stationary contact assembly comprises a flat contact and an insulating bracket sleeved outside the flat contact; When the first conductive member of the isolating blade assembly is engaged with the flat contact, the corresponding sealing cover of the sealing insulating member is arranged on the insulating bracket.
3. The fully sealed isolating switch anti-drop structure according to claim 1, characterized in that: The conductive rod is arranged perpendicularly to the first conductive member.
4. A fully sealed isolating switch anti-drop structure according to any one of claims 1 to 3, characterized in that: An insulating pull ring is also fixedly provided at the end of the conductive rod.
5. A fully sealed isolating switch anti-drop structure according to claim 4, characterized in that: The conductive rod and the first conductive member are fixedly connected by connecting bolts.