Convenient and fast-assembly retractable grading ring for field test
The design of the airbag, metal cover and Velcro connection components solves the problem of inconvenient disassembly and installation of the equalizing ring in the power plant field test, and realizes convenient and fast installation and stable connection, which is suitable for field test equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中节能启源雷宇(江苏)电气科技有限公司
- Filing Date
- 2023-12-05
- Publication Date
- 2026-05-19
AI Technical Summary
The existing equalizing rings are inconvenient to disassemble and install in power plant field tests, making it difficult to meet the need for convenient and quick installation.
The design incorporates an airbag, metal cover, wires, and Velcro connectors. The airbag expands and contracts to enable quick installation and removal. The connection is reinforced by the interlocking of Velcro A and Velcro B. The airbag is made of rubber to ensure corrosion resistance.
It enables quick installation and removal of the equalizing ring, shortens installation and maintenance time, reduces volume during transportation and storage, and meets voltage and anti-corona requirements.
Smart Images

Figure CN224263864U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of equalizing ring technology, specifically a convenient and quick-release equalizing ring for field testing. Background Technology
[0002] The meaning of an equalizing ring is quite obvious; its main function is to equalize voltage. It is suitable for AC voltage and can evenly distribute high voltage around an object, ensuring that there is no potential difference between different parts of the ring, thereby achieving the effect of equalizing voltage.
[0003] The existing patent with authorization announcement number "CN215069459U" discloses an equalizing ring for high-voltage lines. The equalizing ring body and the bracket are integrally cast from aluminum alloy. The equalizing ring body has an ingenious structure. Although it is hollow, it has high strength, does not trap foreign objects, and does not leak or accumulate water. In addition, the mounting part and the equalizing ring body are not on the same plane, which can reduce the interference of the bracket on the performance of the equalizing ring body and make the voltage distribution more uniform.
[0004] The aforementioned traditional equalizing rings for reactors are made of oxidation-resistant metal materials. To meet the high test voltage requirements, the diameter of the equalizing rings is generally large, making them suitable for equipment used in fixed installations. With the development of modern technology, more and more power plants need to conduct on-site tests on electrical products. This requires the equipment to be designed to be easy to install on-site or to be mobile and vehicle-mounted. Therefore, the equalizing rings need to be disassembled into two halves for transportation, and disassembly and installation are relatively troublesome. Utility Model Content
[0005] The purpose of this invention is to provide a convenient and quick-release equalizing ring for field testing, so as to solve the existing problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a convenient and quick-release equalizing ring for field testing, comprising an airbag, wherein multiple sets of metal covers are evenly arranged on the outer side of the airbag, and the multiple sets of metal covers are interconnected by wires, an inflation / deflation port is provided at the bottom of one side of the airbag, and six sets of Velcro connecting components are evenly arranged at the edge of the bottom of the airbag.
[0007] Preferably, the hook and loop fastener assembly includes hook and loop fastener A, a slot, hook and loop fastener B, and a buckle. Hook and loop fastener A and hook and loop fastener B are provided at the edge of the bottom of the airbag. A slot is provided on one side of the bottom of hook and loop fastener B, and a buckle that cooperates with the slot is provided on one side of the bottom of hook and loop fastener A, which can quickly and reliably connect the equalizing ring to the test equipment.
[0008] Preferably, the metal cover is disc-shaped to ensure uniform voltage distribution.
[0009] Preferably, the airbag is made of rubber, which gives it high strength and corrosion resistance.
[0010] Preferably, an adhesive layer is provided on one side of the hook and loop fastener A and hook and loop fastener B, and the hook and loop fastener A and hook and loop fastener B are connected to the airbag through the adhesive layer for fixing the hook and loop fastener A and the card slot.
[0011] Preferably, the bottom of the airbag has a through hole, through which the device can be inserted into the outside of the test equipment.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This convenient and quick-installation equalizing ring for field testing, through the cooperation between the air bladder, metal cover, wires, and Velcro connection components, allows the device to be covered on the test equipment during installation. The equalizing ring is quickly and reliably connected to the test equipment via Velcro A and Velcro B, and the connection effect is enhanced by the engagement of the slots and buckles, thereby significantly shortening the installation and maintenance time. After the device is installed, the equalizing ring can be inflated during product testing in the use state to ensure that its diameter meets the voltage and anti-corona requirements. During transportation and storage, the air bladder can be deflated, and the contracted equalizing ring can be attached to the reactor and laid down together with the reactor, ensuring the transport height and width. Attached Figure Description
[0013] Figure 1 This is a front sectional view of the present invention;
[0014] Figure 2 This is a bottom view of the present invention;
[0015] Figure 3 For the present utility model Figure 1 An enlarged schematic diagram of the structure at point A.
[0016] In the diagram: 1. Airbag; 2. Metal cover; 3. Wire; 4. Velcro connector assembly; 41. Velcro A; 42. Slot; 43. Velcro B; 44. Buckle; 5. Inflation / de-inflation port. 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.
[0018] Please see Figure 1-3The present invention provides an embodiment of a convenient and quick-release equalizing ring for field testing, comprising an airbag 1. The airbag 1 is made of rubber, giving it high strength and corrosion resistance. The bottom of the airbag 1 has a through hole, through which the device can be inserted into the outside of the testing equipment. Multiple sets of metal covers 2 are evenly arranged on the outside of the airbag 1. The multiple sets of metal covers 2 are interconnected by wires 3. The metal covers 2 are disc-shaped to ensure uniform voltage distribution. An inflation / deflation port 5 is provided on the bottom of one side of the airbag 1. Six sets of Velcro connecting components 4 are evenly arranged on the edge of the bottom of the airbag 1.
[0019] Furthermore, the Velcro connection assembly 4 includes Velcro A41, a slot 42, Velcro B43, and a buckle 44. Velcro A41 and Velcro B43 are provided at the bottom edge of the airbag 1. A slot 42 is provided on one side of the bottom of Velcro B43, and a buckle 44 that cooperates with the slot 42 is provided on one side of the bottom of Velcro A41, which can quickly and reliably connect the equalizing ring to the test equipment.
[0020] Furthermore, an adhesive layer is provided on one side of the hook and loop fasteners A41 and B43. The hook and loop fasteners A41 and B43 are connected to the airbag 1 through the adhesive layer to fix the hook and loop fasteners A41 and the card slot 42.
[0021] Working principle: When using this equalizing ring, the device can be covered on the test equipment. By passing the Velcro A41 and Velcro B43 through the mounting parts on the equipment and sticking them together, the device can be quickly fixed. Then, the slot 42 and the buckle 44 are engaged to enhance the connection stability and quickly complete the installation of the device.
[0022] When the device is in use, air can be inflated into the airbag 1 through the inflation / deflation port 5 to make the device diameter meet the voltage and anti-corona requirements, thereby distributing the high voltage around the device evenly. When the device is transported and stored, the gas can be discharged from the airbag 1 to shrink the device and reduce the overall volume of the device.
[0023] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A convenient and quick-release equalizing ring for field testing, comprising an airbag (1), characterized in that: Multiple sets of metal covers (2) are evenly arranged on the outer side of the airbag (1). The multiple sets of metal covers (2) are connected to each other by wires (3). An inflation / deflation port (5) is provided at the bottom of one side of the airbag (1). Six sets of Velcro connecting components (4) are evenly arranged at the bottom edge of the airbag (1).
2. The convenient and quick-release equalizing ring for field testing according to claim 1, characterized in that: The Velcro connection assembly (4) includes Velcro A (41), a slot (42), Velcro B (43), and a buckle (44). Velcro A (41) and Velcro B (43) are provided at the bottom edge of the airbag (1). A slot (42) is provided on one side of the bottom of Velcro B (43), and a buckle (44) that cooperates with the slot (42) is provided on one side of the bottom of Velcro A (41).
3. The convenient and quick-release equalizing ring for field testing according to claim 1, characterized in that: The metal cover (2) is disc-shaped.
4. The convenient and quick-release equalizing ring for field testing according to claim 1, characterized in that: The airbag (1) is made of rubber.
5. A convenient and quick-release equalizing ring for field testing according to claim 2, characterized in that: The Velcro A (41) and Velcro B (43) have an adhesive layer on one side, and the Velcro A (41) and Velcro B (43) are connected to the airbag (1) through the adhesive layer.
6. The convenient and quick-release equalizing ring for field testing according to claim 1, characterized in that: The bottom of the airbag (1) has a through hole.