Anti-falling end screen protecting cover device and direct current bushing
By using anti-fall safety rope and anti-detachment screw in the end-screen cover device of the DC sleeve, the problem of the end-screen cover is easily fallen off at high altitude, improving the maintenance safety and ensuring the safety of the operator .
Patent Information
- Application Number
- CN202323291207.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-04
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-12-04
AI Technical Summary
The end-screen cover of the DC sleeve is prone to fall off from high altitudes at high altitudes, resulting in inconvenience in operation and safety hazards, affecting maintenance safety.
A anti-fall cover device is designed, which is connected by a detachable connection of the final cover base and the final cover using an anti-fall safety rope. The structure of a suspended ring and an open ring buckle is adopted, and the anti-detach screw is used for Tighten the connection to ensure that the cover does not fall off during high altitude operation.
Effectively prevent the end-screen cover from falling from high altitude, improve the maintenance safety of the DC casing and ensure the safety of the operator.
Smart Images
Figure CN222262002U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of high-voltage insulation, and particularly relates to an end screen protective cover device and a DC bushing for preventing falling. Background Art
[0002] DC bushings are used for electrical connection of high-voltage and large-capacity power transmission and transformation equipment inside and outside the valve hall. The product unit bears the system voltage and current and is the "throat" of the power transmission system. Its technological advancement and quality directly affect whether the power transmission line can operate safely and reliably. DC bushings are usually installed on walls with a height of more than ten meters. When the power station is overhauled, the bushing end screen cover needs to be opened for testing. After the operator opens the cover, the cover often falls off from the high altitude, causing inconvenience in operation and safety hazards.
[0003] Therefore, how to prevent the end screen cover of the DC bushing from falling from a high altitude and improve the safety of DC bushing maintenance is a problem that needs to be solved urgently by technical personnel in this field. Utility Model Content
[0004] The utility model aims to provide an end screen protective cover device and a DC bushing for preventing falling, which can prevent the end screen protective cover of the DC bushing from falling from a high altitude, thereby improving the maintenance safety of the DC bushing.
[0005] In order to solve the above technical problems, the utility model provides an end screen protective cover device for preventing falling, comprising a detachably connected end screen base and an end screen protective cover, characterized in that the end screen base and the end screen protective cover are connected by an anti-fall safety rope.
[0006] Optionally, in the above-mentioned end screen protective cover device for preventing falling, at least one of the end screen base and the end screen protective cover is provided with a hanging ring at the connection end with the anti-fall safety rope, and the anti-fall safety rope is provided with an open ring buckle detachably connected to the hanging ring.
[0007] Optionally, in the above-mentioned end screen protective cover device for preventing falling, the open ring buckle includes a hook, a rotating shaft and a baffle, the rotating shaft is rotatably set on the hook through a torsion spring, one end of the baffle is connected to the rotating shaft, and the other end is used to control the opening and closing of the opening of the hook.
[0008] Optionally, in the above-mentioned end screen protective cover device for preventing falling, the hanging ring is a rope fixing hole or a rope fixing groove opened on at least one of the end screen base and the end screen protective cover, and the rope fixing hole or the rope fixing groove can be clamped with the open ring buckle.
[0009] Optionally, in the above-mentioned end screen protective cover device for preventing falling, the anti-fall safety rope is a chain or a steel wire rope.
[0010] Optionally, in the above-mentioned end screen protective cover device for preventing falling, the anti-fall safety rope is elastic or retractable.
[0011] Optionally, in the above-mentioned end screen protective cover device for preventing falling, the end screen base and the end screen protective cover are fastened together by anti-slip screws, and the anti-slip screws can always be connected to the end screen protective cover when the end screen protective cover is separated from the end screen base.
[0012] Optionally, in the above-mentioned end screen protective cover device for preventing falling, the diameter of the connection end between the anti-slip screw and the end screen base is larger than the diameter of the connection end between the anti-slip screw and the end screen protective cover.
[0013] The utility model provides a DC bushing, which is characterized by comprising the end screen protective cover device for preventing falling as described above.
[0014] The utility model provides a terminal screen protective cover device for preventing falling, and its beneficial effects are:
[0015] When the DC bushing is under line maintenance, the end screen cover needs to be removed from the end screen base. The end screen cover is reliably connected to the end screen base through an anti-fall safety rope, which can effectively prevent the end screen cover from falling from a high altitude when the operator is working at high altitude, thereby improving the safety of DC bushing maintenance.
[0016] The utility model also provides a DC bushing with the above-mentioned end screen protective cover device for preventing falling, which has the same beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0018] Figure 1 A schematic structural diagram of a terminal screen protective cover device for preventing a terminal screen from falling provided in an embodiment of the utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the end screen protection cover and the end screen base provided in an embodiment of the utility model in a separated state.
[0020] In the above picture:
[0021] 1- end screen base; 2- end screen cover; 3- anti-fall safety rope; 4- anti-drop screw. DETAILED DESCRIPTION
[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0023] The core of the utility model is to provide an end screen protective cover device and a DC bushing for preventing falling, which can prevent the end screen protective cover of the DC bushing from falling from a high altitude, thereby improving the maintenance safety of the DC bushing.
[0024] In order to enable those skilled in the art to better understand the technical solution provided by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0025] Please refer to Figure 1 and Figure 2 The utility model provides a terminal screen protective cover device for preventing falling, comprising: a detachably connected terminal screen base 1 and a terminal screen protective cover 2, wherein the terminal screen base 1 and the terminal screen protective cover 2 are connected via an anti-fall safety rope 3. The anti-fall safety rope 3 can realize a reliable connection between the terminal screen protective cover 2 and the terminal screen base 1 after disassembly, thereby preventing the terminal screen protective cover 2 from falling when the operator is working at high altitude.
[0026] The present solution provides an end screen protective cover device for preventing falling. When the DC bushing is under line maintenance, the end screen protective cover 2 needs to be removed from the end screen base 1. The end screen protective cover 2 is reliably connected to the end screen base 1 through an anti-fall safety rope 3, which can effectively prevent the end screen protective cover 2 from falling from a high altitude when the operator is working at high altitude, thereby improving the safety of DC bushing maintenance.
[0027] In order to facilitate the replacement of the anti-fall safety rope 3, a lifting ring is provided at the connection end between at least one of the end screen base 1 and the end screen cover 2 and the anti-fall safety rope 3, and an open ring buckle detachably connected to the lifting ring is provided on the anti-fall safety rope 3.
[0028] The structure of the open ring buckle is similar to that of a D-shaped lock buckle, which mainly includes a hook, a rotating shaft and a baffle. The rotating shaft is rotatably arranged on the hook through a torsion spring. One end of the baffle is connected to the rotating shaft, and the other end is used to control the opening and closing of the hook. When there is no external force, the baffle and the hook can form a closed ring structure. When the other end of the baffle is rotated to open the opening of the hook, the ring can be placed in the ring structure of the hook, and then the baffle automatically closes the opening of the hook under the resetting action of the torsion spring, thereby realizing a tight connection between the open ring buckle and the ring.
[0029] Specifically, the lifting ring may be a ring structure welded on at least one of the end screen base 1 and the end screen cover 2. Of course, the lifting ring may also be a rope fixing hole or a rope fixing groove provided on at least one of the end screen base 1 and the end screen cover 2, and the rope fixing hole or the rope fixing groove may be snap-fitted with the open ring buckle.
[0030] In a specific embodiment, the anti-fall safety rope 3 is a chain or a steel wire rope, and the above materials have wear resistance. The anti-fall safety rope 3 can also be an elastic or retractable safety rope, which can buffer the falling end screen cover 2. Of course, the anti-fall safety rope 3 can also be made of other materials, and the appropriate material can be selected according to actual needs.
[0031] In a specific embodiment, the end screen base 1 and the end screen protective cover 2 are fastened together by anti-drop screws 4. The anti-drop safety rope 3 enables the end screen protective cover 2 to be reliably connected to the end screen base 1 after the anti-drop screws 4 are removed and the end screen protective cover 2 is opened, thereby preventing the end screen protective cover 2 from falling from a high altitude. At the same time, the anti-drop screws 4 can always be connected to the end screen protective cover 2 when the end screen protective cover 2 is separated from the end screen base 1.
[0032] In a specific embodiment, the diameter of the connection end of the anti-slip screw 4 and the end screen base 1 is larger than the diameter of the connection end of the anti-slip screw 4 and the end screen protective cover 2. Compared with the common screws in the prior art, the anti-slip screw in this solution is designed to be a large diameter end on the basis of the small diameter end of the common screw, and the connection section between the anti-slip screw and the end screen base 1 is designed to be a large diameter end, and the step surface formed between the large diameter end and the small diameter end is used to abut against the end screen protective cover 2 to prevent the screw from coming out of the screw hole and prevent the anti-slip screw 4 from falling from a high altitude. In addition, this solution also provides a DC bushing, including the end screen protective cover device for preventing falling as described above.
[0033] Obviously, the DC bushing having the above-mentioned end screen cover device for preventing falling has the same beneficial effects, which will not be described in detail here.
[0034] In summary, the end screen protective cover device for preventing falling provided by the present solution is of great significance for eliminating the inconvenience caused by the above-mentioned capacitor bushing maintenance. The end screen protective cover device is applicable to bushings of all voltage levels.
[0035] In the description of the present application, it should be understood that the descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present application.
[0036] In the description of this application, the meaning of "plurality" is more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0037] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind of" and / or "the" are not specifically singular and may also include the plural. Generally speaking, the terms "comprise" and "include" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "comprise a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.
[0038] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "plurality" means two or more than two.
[0039] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.
[0040] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0041] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A terminal screen protective cover device for preventing falling, comprising a detachably connected terminal screen base and a terminal screen protective cover, characterized in that: The end screen base and the end screen protective cover are connected by an anti-fall safety rope, and at least one of the end screen base and the end screen protective cover is provided with a hanging ring at the connection end with the anti-fall safety rope, and the anti-fall safety rope is provided with an open ring buckle detachably connected to the hanging ring.
2. The end screen protective cover device for preventing falling according to claim 1, characterized in that: The open ring buckle comprises a hook, a rotating shaft and a baffle. The rotating shaft is rotatably arranged on the hook through a torsion spring. One end of the baffle is connected to the rotating shaft, and the other end is used to control the opening and closing of the opening of the hook.
3. The end screen protective cover device for preventing falling according to claim 1, characterized in that: The hanging ring is a rope fixing hole or a rope fixing groove opened on at least one of the end screen base and the end screen protective cover, and the rope fixing hole or the rope fixing groove can be clamped with the open ring buckle.
4. The end screen protective cover device for preventing falling according to claim 1, characterized in that: The anti-fall safety rope is a chain or a steel wire rope.
5. The end screen protective cover device for preventing falling according to claim 1, characterized in that: The anti-fall safety rope is elastic or retractable.
6. The end screen protective cover device for preventing falling according to claim 1, characterized in that: The end-screen base and the end-screen protective cover are fastened and connected by anti-slip screws, and the anti-slip screws can always be connected to the end-screen protective cover when the end-screen protective cover is separated from the end-screen base.
7. The end screen protective cover device for preventing falling according to claim 6, characterized in that: The diameter of the connection end between the anti-slipping screw and the end screen base is larger than the diameter of the connection end between the anti-slipping screw and the end screen protective cover.
8. A DC bushing, characterized in that: It comprises the end screen protective cover device for preventing falling as described in any one of claims 1 to 7.