Isolating switch conductive arm with limiting structure

Abstract

The utility model provides an isolating switch conductive arm with a limiting structure, which comprises a conductive arm body, a connecting plate, a base, a rotating shaft, a connecting block and a limiting mechanism, and is characterized in that the connecting plate is fixedly connected to one side of the conductive arm body; the base is arranged below the connecting plate; the rotating shaft is rotationally connected to one side of the connecting plate; the connecting block is fixed on the inner side of the conductive arm body; the limiting mechanism comprises a buckle, a limiting block, a pressing block, a limiting plate, a first spring, a second spring and a fixing assembly, and one end of the buckle is connected with the connecting block; and the limiting block is fixed on one side of the base. According to the isolating switch conductive arm with the limiting structure provided by the embodiment of the utility model, accurate positioning and reduction of operating force are realized, the stability and the accuracy of the conductive arm in a stretching process are ensured, and the convenience and the safety of operation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of isolating switches, in particular to a conductive arm of an isolating switch with a limiting structure. Background Art

[0002] Isolating switches are one of the important devices in power systems. They are mainly used to connect or disconnect circuits under no-load conditions. In high-voltage power systems, the performance of the isolating switch arm directly affects the safe and stable operation of the system.

[0003] At present, during the operation of traditional disconnectors, due to the limitations of the mechanical structure, there are often problems such as large operating force and inaccurate positioning. This not only increases the workload of operators, but may also cause equipment damage or safety accidents due to inaccurate positioning. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent.

[0005] To this end, one purpose of the present invention is to propose a conductive arm of an isolating switch with a limit structure to achieve precise positioning and reduce operating force, ensure the stability and accuracy of the conductive arm during the extension and retraction process, and improve the convenience and safety of operation.

[0006] To achieve the above-mentioned objectives, the first aspect of the present invention proposes a conductive arm of an isolating switch with a limiting structure, characterized in that it includes: a conductive arm body, a connecting plate, a base, a rotating shaft, a connecting block and a limiting mechanism, wherein the connecting plate is fixedly connected to one side of the conductive arm body; the base is arranged under the connecting plate; the rotating shaft is rotatably connected to one side of the connecting plate; the connecting block is fixed to the inner side of the conductive arm body; the limiting mechanism includes a buckle, a limiting block, a pressing block, a limiting plate, a first spring, a second spring and a fixing assembly, wherein one end of the buckle is connected to the connecting block; the limiting block is fixed to one side of the base; the pressing block is installed inside the limiting block; the limiting plate is installed inside the limiting block, and one side is in contact with the pressing block; the first spring and the second spring are respectively connected to both sides of the limiting plate; and the fixing assembly is arranged on one side of the conductive arm body.

[0007] In addition, the conductive arm of the isolating switch with a limit structure proposed in the present invention may also have the following additional technical features:

[0008] Specifically, the fixing assembly includes a threaded rod, a knob, a fixing plate and a fixing block, wherein the threaded rod is rotatably connected to one side of the conductive arm body; the knob is fixed to one end of the threaded rod; the fixing plate is fixed on the base; and the fixing block is fixed to the other end of the threaded rod.

[0009] Specifically, the buckle and the limiting block form a snap-fit ​​structure.

[0010] Specifically, one end of the first spring and the second spring are connected to two sides of the limiting plate, and the other ends are fixedly connected to the limiting block.

[0011] Specifically, the conductive arm body is connected to the connecting plate via a rotating shaft and rotates.

[0012] Specifically, the threaded rod and the knob form a rotating structure, and the threaded rod and the conductive arm body form a telescopic structure.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the conductive arm of the isolating switch with a limiting structure of the present invention greatly reduces the operating force through the precise control of the limiting mechanism, thereby reducing the workload of the operator; secondly, the positioning is accurate, avoiding equipment damage or safety accidents caused by improper operation; thirdly, the structure is simple and reliable, and maintenance is convenient, thereby improving the service life of the isolating switch and the convenience of operation.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic structural diagram of a conductive arm of an isolating switch with a limiting structure according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the unfolded structure of a conductive arm of an isolating switch with a limiting structure according to one embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of a limiting mechanism of a conductive arm of an isolating switch with a limiting structure according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic structural diagram of a conductive arm fixing assembly of an isolating switch with a limiting structure according to an embodiment of the present utility model;

[0020] Figure 5 According to the utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0021] Figure numerals: 1. conductive arm body; 2. connecting plate; 3. base; 4. rotating shaft; 5. connecting block; 6. limiting mechanism; 61. buckle; 62. limiting block; 63. pressing block; 64. limiting plate; 65. first spring; 66. second spring; 67. fixing assembly; 671. threaded rod; 672. knob; 673. fixing plate; 674. fixing block. DETAILED DESCRIPTION

[0022] The following describes in detail embodiments of the present invention, examples of which 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 intended to explain the present invention, and should not be construed as limiting the present invention.

[0023] The conductive arm of the disconnector with a limiting structure according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0024] like Figure 1-Figure 5 As shown, the conductive arm of the disconnector with a limit structure according to the embodiment of the present invention may include: a conductive arm body 1, a connecting plate 2, a base 3, a rotating shaft 4, a connecting block 5 and a limiting mechanism 6, wherein the connecting plate 2 is fixedly connected to one side of the conductive arm body 1; the base 3 is arranged under the connecting plate 2; the rotating shaft 4 is rotatably connected to one side of the connecting plate 2; and the connecting block 5 is fixed to the inner side of the conductive arm body 1;

[0025] The limiting mechanism 6 includes a buckle 61, a limiting block 62, a pressing block 63, a limiting plate 64, a first spring 65, a second spring 66 and a fixing assembly 67, wherein one end of the buckle 61 is connected to the connecting block 5; the limiting block 62 is fixed to one side of the base 3; the pressing block 63 is installed inside the limiting block 62; the limiting plate 64 is installed inside the limiting block 62, and one side is in contact with the pressing block 63; the first spring 65 and the second spring 66 are respectively connected to both sides of the limiting plate 64; the fixing assembly 67 is arranged on one side of the conductive arm body 1.

[0026] The fixing assembly 67 includes a threaded rod 671, a knob 672, a fixing plate 673 and a fixing block 674, wherein the threaded rod 671 is rotatably connected to one side of the conductive arm body 1; the knob 672 is fixed to one end of the threaded rod 671; the fixing plate 673 is fixed on the base 3; and the fixing block 674 is fixed to the other end of the threaded rod 671.

[0027] It should be noted that the buckle 61 and the limit block 62 form a snap-fit ​​structure to ensure that during the extension and retraction of the conductive arm, the buckle 61 can cooperate closely with the limit block 62, thereby achieving precise positioning. In addition, one end of the first spring 65 and the second spring 66 are connected to the two sides of the limit plate 64, and the other ends are fixedly connected to the limit block 62. This ensures that the pressing block 63 can quickly return to its initial position when subjected to external force, thereby improving the convenience and safety of operation.

[0028] Specifically, during use, the operator can drive the rotation of the threaded rod 671 by rotating the knob 672, thereby driving the fixed block 674 to move along the length direction of the conductive arm body 1. Since the fixed plate 673 is fixedly connected to the base 3, when the fixed block 674 moves, the conductive arm body 1 will be fixed and limited to realize the opening and closing operation of the isolating switch.

[0029] During the extension and retraction of the conductive arm body 1, the limiting mechanism 6 plays a vital role. When the conductive arm body 1 is extended to a predetermined position, the engaging structure of the buckle 61 and the limiting block 62 will automatically lock to prevent the conductive arm body 1 from over-extension or retraction, thereby ensuring the stability and safety of the isolating switch. At the same time, the elastic action of the first spring 65 and the second spring 66 enables the pressing block 63 to quickly return to its initial position after being subjected to external force, thereby ensuring the convenience of operation.

[0030] The conductive arm body 1 is connected to the connecting plate 2 via a rotating shaft 4 and rotates, allowing the conductive arm to flexibly extend and retract during operation. The threaded rod 671 and knob 672 form a rotating structure. Rotating the knob 672 rotates the threaded rod 671, which in turn drives the conductive arm body 1 to extend and retract, achieving the opening and closing operation of the disconnector.

[0031] In one embodiment of the present invention, Figure 5 As shown, the buckle 61 and the limiting block 62 form a locking structure.

[0032] Specifically, in the engagement structure between the buckle 61 and the stopper 62, the buckle 61 is shaped to fit tightly within the groove of the stopper 62. When the conductive arm body 1 is extended to a predetermined position, the buckle 61 automatically slides into the groove of the stopper 62, forming a stable locked state. This ensures the precise positioning of the conductive arm body 1 during extension and retraction, effectively preventing accidental movement due to improper operation.

[0033] In one embodiment of the present invention, Figure 5 As shown, one end of the first spring 65 and the second spring 66 are connected to both sides of the limiting plate 64 , and the other ends are fixedly connected to the limiting block 62 .

[0034] Specifically, the elastic action of the first spring 65 and the second spring 66 ensures that the push block 63 can quickly return to the initial position after being subjected to external force, thereby ensuring the convenience of operation. In addition, the elastic force of the spring can also provide an additional locking force when the conductive arm body 1 is extended to the predetermined position.

[0035] In one embodiment of the present application, Figure 2 As shown, the conductive arm body 1 is connected to the connecting plate 2 via a rotating shaft 4 and rotates.

[0036] It can be understood that both ends of the rotating shaft 4 are fixed to the connecting plate 2 and the conductive arm body 1 respectively, so that the conductive arm body 1 can rotate around the rotating shaft 4 .

[0037] In one embodiment of the present invention, Figure 4 As shown, the threaded rod 671 and the knob 672 form a rotating structure, and the threaded rod 671 and the conductive arm body 1 form a telescopic structure.

[0038] It is understandable that the threaded rod 671 is extended and retracted by the operator rotating the knob 672 so that the fixing block 674 can cooperate with the fixing plate 673 to achieve a fixing effect.

[0039] In summary, the conductive arm of the isolating switch with a limiting structure of the present invention greatly reduces the operating force through the precise control of the limiting mechanism, thereby reducing the workload of the operator; secondly, the positioning is accurate, avoiding equipment damage or safety accidents caused by improper operation; thirdly, the structure is simple and reliable, and maintenance is convenient, which improves the service life of the isolating switch and the convenience of operation.

[0040] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A conductive arm of an isolating switch with a limit structure, characterized in that: include: Conductive arm body (1), connecting plate (2), base (3), rotating shaft (4), connecting block (5) and limiting mechanism (6), wherein, The connecting plate (2) is fixedly connected to one side of the conductive arm body (1); The base (3) is arranged under the connecting plate (2); The rotating shaft (4) is rotatably connected to one side of the connecting plate (2); The connecting block (5) is fixed on the inner side of the conductive arm body (1); The limiting mechanism (6) comprises a buckle (61), a limiting block (62), a pressing block (63), a limiting plate (64), a first spring (65), a second spring (66) and a fixing assembly (67), wherein: One end of the buckle (61) is connected to the connecting block (5); The limiting block (62) is fixed on one side of the base (3); The push block (63) is installed inside the limit block (62); The limiting plate (64) is installed inside the limiting block (62), and one side thereof is in contact with the pressing block (63); The first spring (65) and the second spring (66) are respectively connected to two sides of the limiting plate (64); The fixing assembly (67) is arranged on one side of the conductive arm body (1).

2. The conductive arm of the isolating switch with a limit structure according to claim 1, characterized in that: The fixing assembly (67) includes a threaded rod (671), a knob (672), a fixing plate (673) and a fixing block (674), wherein: The threaded rod (671) is rotatably connected to one side of the conductive arm body (1); The knob (672) is fixed to one end of the threaded rod (671); The fixing plate (673) is fixed on the base (3); The fixing block (674) is fixed to the other end of the threaded rod (671).

3. The conductive arm of the isolating switch with a limiting structure according to claim 1, characterized in that: The buckle (61) and the limiting block (62) form a snap-fit ​​structure.

4. The conductive arm of the isolating switch with a limiting structure according to claim 1, characterized in that: One end of the first spring (65) and the second spring (66) are connected to both sides of the limiting plate (64), and the other ends are fixedly connected to the limiting block (62).

5. The conductive arm of the isolating switch with a limiting structure according to claim 1, characterized in that: The conductive arm body (1) is connected to the connecting plate (2) via a rotating shaft (4) and rotates.

6. The conductive arm of the isolating switch with a limiting structure according to claim 2, characterized in that: The threaded rod (671) and the knob (672) form a rotating structure, and the threaded rod (671) and the conductive arm body (1) form a telescopic structure.

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