A manual isolating switch operator

By designing a manual disconnect switch operator, the problem of mismatched operating tools in the substation is solved, stable fixation is achieved, operational safety and efficiency are improved, costs and fatigue are reduced, and the reliability of the power system is ensured.

CN119480526BActive Publication Date: 2025-10-03GUIZHOU POWER GRID CO LTD
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Patent Information

Application Number
CN202411477740.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-22
Publication Date
2025-10-03
Estimated Expiration
2044-10-22

AI Technical Summary

Technical Problem

When operating manual disconnect switches in substations, the lack of dedicated tools results in a mismatch between the operating tube and the disconnect switch handle, making the operation time-consuming and labor-intensive, and posing safety hazards such as falls and slips that can cause injuries.

Method used

A manually-operated isolating switch operator is designed, which includes an operating handle, auxiliary components, a limit unit, a fixing unit and a grounding switch unit. The ingenious design of the limit and fixing components achieves stable fixation of the switch body. 304 aluminum alloy is used to improve durability and safety.

Benefits of technology

It improves operational safety and durability, reduces maintenance costs and training requirements, reduces operator fatigue, and ensures reliability in harsh environments and the safety and efficiency of power systems.

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Abstract

The present invention discloses a manual disconnect switch operator, which relates to the technical field of substation disconnect switches. The operator comprises: an operating unit including an operating handle and an auxiliary component disposed on the outer diameter of the operating handle; and a limiting unit including a limiting component disposed at one end of the auxiliary component. Through a clever limiting and fixing mechanism, the switch body is stably fixed, improving operational safety and durability. Made of 304 aluminum alloy, the operator improves operational comfort and work efficiency while also reducing maintenance costs and training requirements. Its ergonomic design reduces operator fatigue, while its corrosion resistance ensures reliability in harsh environments, further safeguarding the safety, efficiency, and reliability of the power system.
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Description

Technical Field

[0001] The present invention relates to the technical field of transformer substation isolating switches, and in particular to a hand-operated isolating switch operator. Background Art

[0002] In power system substations, there are many manually operated disconnectors such as grounding switches. When performing special maintenance work, the disconnectors need to be operated to close them and then perform maintenance or inspection.

[0003] At present, when operating the disconnector, a solid iron rod is generally used as the operating handle, and the substation usually uses an iron pipe as the operating tool. There is no dedicated operating tool in the system. During the manual operation of the disconnector, the operating pipe does not match the operating handle of the disconnector itself, and the employees do not have a comprehensive grasp of the operating methods. Safety incidents such as people falling during operation and the operating pipe slipping and injuring people often occur. As a result, the operation of the disconnector is not only time-consuming and labor-intensive, but also poses a safety hazard. Summary of the Invention

[0004] In view of the above problems existing in the existing manual disconnect switch operator, the present invention is proposed.

[0005] Therefore, the present invention provides a manual disconnect switch operator, the purpose of which is to solve the problem that substations usually use an iron pipe as an operating tool and there is no dedicated operating tool in the system. During the manual disconnect switch operation, the operating pipe does not match the operating handle of the disconnect switch itself, and the employees do not have a comprehensive grasp of the operating method. Safety incidents such as people falling during operation and the operating pipe slipping and injuring people often occur, resulting in the operation of the disconnect switch not only being time-consuming and labor-intensive, but also posing a safety hazard.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: the operating unit includes an operating handle, an auxiliary component arranged on the outer diameter of the operating handle;

[0007] The limiting unit includes a limiting component provided at one end of the auxiliary component;

[0008] The fixing unit includes a supporting assembly provided on the auxiliary assembly, and a fixing assembly provided on the supporting assembly; and

[0009] The grounding knife switch unit comprises a knife switch body arranged at one end of the fixing component.

[0010] As a preferred solution of the hand-operated isolating switch operator of the present invention, the auxiliary component includes an anti-slip sleeve arranged on the outer diameter of the operating handle, a base arranged at the other end, and a fixing ring arranged at one end of the anti-slip sleeve, and the fixing ring is connected to the operating handle.

[0011] As a preferred solution of the hand-operated isolating switch operator described in the present invention, the limiting assembly includes a rotating retaining ring threadedly arranged on one end of the operating handle, and a limiting sleeve arranged on the rotating retaining ring, and the limiting sleeve cooperates with the support assembly.

[0012] As a preferred solution of the manual isolating switch operator of the present invention, a sliding groove is provided inside the limit sleeve.

[0013] As a preferred solution of the hand-operated disconnect switch operator of the present invention, the support assembly includes a low ring arranged at one end of the operating handle, a thread arranged on the outer diameter of the low ring, and a fixed base arranged at the other end of the low ring.

[0014] As a preferred solution of the hand-operated isolating switch operator described in the present invention, the fixed component includes a buffer conical block arranged on the fixed base, and a movable ring 1 arranged at one end of the buffer conical block, and the movable ring 1 cooperates with the sliding groove.

[0015] As a preferred solution of the manual disconnect switch operator of the present invention, a fixed ring plate is provided at one end of the movable ring 1, a movable ring 2 is provided at one end of the fixed ring plate, and the movable ring 2 is slidably connected to the inside of the limit sleeve.

[0016] As a preferred solution of the manual disconnect switch operator of the present invention, a fixed conical block is provided at one end of the movable ring 2, and the fixed conical block cooperates with the knife switch body.

[0017] As a preferred solution of the manual disconnect switch operator of the present invention, a buffer groove is provided on the outer diameter of the buffer cone block.

[0018] As a preferred solution of the manual disconnect switch operator of the present invention, the outer diameter of the fixed conical block is provided with a deformation groove.

[0019] The beneficial effects of the present invention are as follows: through an ingenious limiting and fixing mechanism, the knife switch body is stably fixed, and the safety and durability of operation are improved. The operator adopts 304 aluminum alloy material. While improving the operating comfort and work efficiency, it also reduces the maintenance cost and training requirements. Its ergonomic design reduces the physical fatigue of the operator, and its corrosion resistance ensures its reliability in harsh environments, and also guarantees the safety, efficiency and reliability of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the manual isolating switch operator of the present invention.

[0022] Figure 2 This is a schematic diagram of the rotation structure of the manual disconnect switch operator of the present invention.

[0023] Figure 3 The figure is a schematic diagram of the internal structure of the manual isolating switch operator of the present invention.

[0024] Figure 4 It is a schematic cross-sectional view of the manual isolating switch operator of the present invention.

[0025] Figure 5 This is a schematic cross-sectional view of the fixing assembly of the manual disconnect switch operator of the present invention.

[0026] Figure 6 The present invention is a manual isolating switch operator Figure 5 A schematic diagram of the enlarged structure. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it individually or selectively refer to an embodiment that is mutually exclusive of other embodiments.

[0030] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0031] Example 1, with reference to Figure 1 - Figure 3 , which is the first embodiment of the present invention, provides a manual disconnect switch operator, the device comprising: an operating unit 100 including an operating handle 101, an auxiliary component 102 provided on the outer diameter of the operating handle 101, and the entire device can be operated and adjusted by the operating handle 101;

[0032] The limiting unit 200 includes a limiting component 201 provided at one end of the auxiliary component 102. The knife gate body 401 can be quickly fixed by the cooperation between the auxiliary component 102 and the limiting component 201.

[0033] The fixing unit 300 includes a support assembly 301 provided on the auxiliary assembly 102, and a fixing assembly 302 provided on the support assembly 301. The knife gate body 401 can be engaged with the support assembly 301 and the fixing assembly 302 to complete the preliminary installation. The fixing assembly 302 can then complete the fixed installation; and,

[0034] The grounding switch unit 400 includes a switch body 401 disposed at one end of the fixing assembly 302 , and the switch body 401 can be fixed by the fixing assembly 302 .

[0035] Among them, the auxiliary component 102 includes an anti-slip cover 102a arranged on the outer diameter of the operating handle 101, a base 102b arranged at the other end of 101a, and a fixing ring 102c arranged at one end of the anti-slip cover 102a, and the fixing ring 102c is connected to the operating handle 101. The auxiliary component 102 on the outer diameter of the operating handle 101 can make the use of the operating handle 101 more convenient and faster.

[0036] During use, when repairing or adjusting the knife gate body 401, the operator inserts the support assembly 301 and the fixing assembly 302 inside the limit assembly 201 into the knife gate body 401, so that the operating unit 100 is initially fixed on the knife gate body 401 for pre-installation and preliminary fixation. By holding the auxiliary assembly 102, the other hand rotates the limit assembly 201, so that the limit assembly 201 rotates and moves along the support assembly 301. While the limit assembly 201 rotates and moves, the fixing assembly 302 inside the limit assembly 201 is squeezed, so that the fixing assembly 302 contracts. Until the fixing component 302 is completely stuck in the outer diameter of the knife switch body 401, the fixation of the knife switch body 401 is completed. After the fixation is completed, the grounding knife switch unit 400 is disassembled, repaired and adjusted through the operating unit 100, and the fixing component 302 is squeezed by the limit component 201, so that the fixing component 302 can adapt to a variety of knife switch bodies 401 of different specifications, and the knife switch body 401 can be quickly fixed and disassembled, and the operating tube and the operating handle of the isolating switch itself are not matched, and the employees do not have a comprehensive grasp of the operating method, etc., which often cause safety incidents such as people falling during operation and the operating tube slipping and injuring people.

[0037] Through innovative component designs, such as the limit component 201, the support component 301 and the fixing component 302, the knife switch body 401 can be fixed and disassembled quickly and stably, which significantly improves the efficiency of maintenance and adjustment work. Its wide adaptability ensures compatibility with knife switch bodies 401 of different specifications, while enhancing operational safety and reducing safety accidents such as operating pipe slippage and personnel falls. The simplified operating process and integrated design reduce labor intensity and maintenance costs, while improving maintenance quality. In addition, the durability and environmental adaptability of the operator enable it to maintain high performance under various working conditions, promote standardized operating procedures, and promote the modernization and efficiency of power system maintenance work.

[0038] Example 2, reference Figure 1 - Figure 4 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the limiting assembly 201 includes a rotating retaining ring 201b arranged on one end of the operating handle 101, the rotating retaining ring 201b is threadedly connected to the operating handle 101, and a limiting sleeve 201a is arranged on the rotating retaining ring 201b, and the limiting sleeve 201a cooperates with the supporting assembly 301, and the overall fixation of the knife gate body 401 is completed by rotating the limiting assembly 201.

[0039] Compared with Example 1, further, a sliding groove 201c is provided inside the limiting sleeve 201a. By rotating the limiting component 201, the limiting component 201 starts to move and starts to squeeze toward the sliding groove 201c on the limiting sleeve 201a, so that the sliding groove 201c is squeezed toward the fixing component 302, thereby completing the fixation of the knife gate body 401.

[0040] During use, when pre-installing and fixing the knife gate body 401, hold the operating handle 101 at one end and insert the limiting sleeve 201a into the knife gate body 401 at the other end for pre-installation, and then rotate the rotating clamping ring 201b to make the rotating clamping ring 201b start to rotate along the thread 301b, so that the limiting clamping sleeve 201a starts to move with the sliding groove 201c, and the movement of the sliding groove 201c starts to squeeze the internal fixing component 302, so that the fixing component 302 starts to deform, and finally the fixing component 302 is fixed on the knife gate body 401 by rotating the rotating clamping ring 201b, completing the installation. During disassembly, it is only necessary to rotate the rotating retaining ring 201b in the opposite direction so that the rotating retaining ring 201b and the limiting sleeve 201a move in the opposite direction with the sliding groove 201c, and the fixing component 302 can be separated to complete the quick disassembly. By rotating the limiting component 201, the limiting component 201 and the fixing component 302 are matched, so that the knife gate body 401 can be quickly installed and the knife gate body 401 can be quickly disassembled, making it easy to operate and use. While improving operating comfort and work efficiency, it also reduces maintenance costs and training requirements. Its ergonomic design reduces the physical fatigue of the operator, and its corrosion resistance ensures reliability in harsh environments.

[0041] The remaining structures are the same as those of Example 1.

[0042] Example 3, reference Figure 1 - Figure 6 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the support assembly 301 includes a low ring 301a provided at one end of the operating handle 101, a thread 301b provided on the outer diameter of the low ring 301a, and a fixed base 301c provided at the other end of the low ring 301a. The fixing assembly 302 is supported and fixed as a whole by the low ring 301a and the fixed base 301c fixed at one end of the operating handle 101.

[0043] Compared with Example 2, further, the fixing assembly 302 includes a buffer conical block 302a arranged on the fixed base 301c, and a movable ring 302b arranged at one end of the buffer conical block 302a, and the movable ring 302b cooperates with the sliding groove 201c. Through the cooperation between the buffer conical block 302a and the movable ring 302b on the fixed base 301c and the limiting assembly 201, the knife gate body 401 can be fixed.

[0044] Furthermore, a fixed ring plate 302c is provided at one end of the movable ring 1 302b, and a movable ring 2 302d is provided at one end of the fixed ring plate 302c, and the movable ring 2 302d is slidably connected to the inside of the limiting sleeve 201a. Through the cooperation between the fixed ring plate 302c and the movable ring 2 302d and the limiting sleeve 201a, the limiting sleeve 201a can be moved to be fixed.

[0045] Furthermore, a fixed conical block 302e is provided at one end of the movable ring 2 302d, and the fixed conical block 302e cooperates with the knife gate body 401, and the knife gate body 401 is fixed by the fixed conical block 302e.

[0046] Furthermore, the outer diameter of the buffer conical block 302a is provided with a buffer groove 302a-1, and the outer diameter of the fixed conical block 302e is provided with a deformation groove 302e-1. Through the cooperation of the buffer groove 302a-1 and the deformation groove 302e-1, the fixed conical block 302e is buffered and limited when it is squeezed by the limiting sleeve 201a.

[0047] During use, when fixing different knife gate bodies 401, the operating handle 101 is held at one end, and the limiting sleeve 201a is inserted into the knife gate body 401 at the other end for pre-installation, and the size of the expanded diameter of the fixed tapered block 302e can be used to insert knife gate bodies 401 of different specifications for pre-installation, and stuck on the outer diameter of the knife gate body 401, and the limiting component 201 is rotated to squeeze the moving ring 1 302b, so that the moving ring 1 302b begins to shrink, and the moving ring 2 302d also begins to shrink, so that the fixed tapered block 302e begins to deform and shrink, and the knife gate body 401 is gradually fixed, and the tapered block 302e is fixed at the same time. 2e internal fixing ring plate 302c is also inserted into the interior of the fixing assembly 302, and performs secondary fixation on the knife gate body 401, thereby making the fixation more stable, and when the fixed conical block 302e begins to shrink to fix the knife gate body 401, the deformation of the fixed conical block 302e is buffered and adjusted by the deformation groove 302e-1 set on the surface of the fixed conical block 302e, and the deformation of the buffering conical block 302a is coordinated by the fixed conical block 302e, so that the fixed conical block 302e can be gradually fixed on the surface of the knife gate body 401, and the knife gate body 401 is adjusted by the operator controlling the operating handle 101 to prevent safety incidents such as people falling during operation, operating pipe slipping and injuring people, etc.

[0048] And through its innovative multi-specification adaptable design, it achieves fast and stable fixation of different knife switch bodies 401. Its progressive fixing mechanism and double fixing guarantees ensure the accuracy of the fixing process and the stability of the structure. The buffer adjustment design effectively protects the knife switch body 401 and extends the service life of the operator. The simplified operating process and improved safety performance reduce operational risks and improve maintenance efficiency. In addition, the cost-effectiveness, environmental adaptability and promotion of standardized operations of the operator have significantly improved the modernization level of power system maintenance and comprehensively promoted technological progress and efficiency improvement in the industry.

[0049] The remaining structures are the same as those of Example 2.

[0050] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape, and proportion of various elements, as well as parameter values ​​such as temperature, pressure, etc., mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. (For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number, or position of the discrete elements may be altered or changed). Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0051] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (i.e., those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A manual isolating switch operator, characterized in that: include: The operating unit (100) comprises an operating handle (101), and an auxiliary component (102) arranged on the outer diameter of the operating handle (101); The limiting unit (200) comprises a limiting component (201) arranged at one end of the auxiliary component (102); The fixing unit (300) comprises a supporting component (301) provided on the auxiliary component (102), and a fixing component (302) provided on the supporting component (301); and, The grounding knife switch unit (400) comprises a knife switch body (401) arranged at one end of the fixing assembly (302); The limiting assembly (201) comprises a rotating clamping ring (201b) threadedly arranged on one end of the operating handle (101), and a limiting clamping sleeve (201a) arranged on the rotating clamping ring (201b), and the limiting clamping sleeve (201a) cooperates with the supporting assembly (301); The support assembly (301) comprises a low ring (301a) provided at one end of the operating handle (101), a thread (301b) provided on the outer diameter of the low ring (301a), and a fixed base (301c) provided at the other end of the low ring (301a); The fixed assembly (302) comprises a buffer conical block (302a) arranged on the fixed base (301c), and a movable ring (302b) arranged at one end of the buffer conical block (302a), and the movable ring (302b) cooperates with the sliding groove 201c; A sliding groove (201c) is provided inside the limiting sleeve (201a); One end of the movable ring 1 (302b) is provided with a fixed ring plate (302c), one end of the fixed ring plate (302c) is provided with a movable ring 2 (302d), and the movable ring 2 (302d) is slidably connected to the interior of the limiting sleeve (201a); One end of the second movable ring (302d) is provided with a fixed conical block (302e), and the fixed conical block (302e) cooperates with the knife switch body (401); The outer diameter of the buffer conical block (302a) is provided with a buffer groove (302a-1); The outer diameter of the fixed conical block (302e) is provided with a deformation groove (302e-1).

2. The manual disconnect switch operator according to claim 1, characterized in that: The auxiliary component (102) comprises an anti-slip sleeve (102a) arranged on the outer diameter of the operating handle (101), a base (102b) arranged at the other end of the anti-slip sleeve (102a), and a fixing ring (102c) arranged at one end of the anti-slip sleeve (102a), and the fixing ring (102c) is connected to the operating handle (101).

Citation Information

Patent Citations

  • Operating handle of disconnecting link

    CN217405316U