Isolating switch operating handle structure
By designing a detachable extension handle structure, the problems of small size and smoothness of the disconnect switch operating handle are solved, increasing the gripping area and lever arm, avoiding hand slippage and space occupation, and improving operation convenience and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG DENGRAN ELECTRIC POWER TECH CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-15
AI Technical Summary
The existing disconnect switch operating handle is small and smooth, making it difficult to hold and easy to slip. Replacing it with a larger handle would take up more space.
A detachable extension handle structure was designed, which uses slots and clips to fix and store the extension handle. Combined with springs to provide elasticity, it increases the gripping area and lever arm length of the handle, and can be stored away when not needed to reduce space occupation.
It achieves increased gripping area and ease of operation without increasing space occupation, avoids hand slippage, and improves the convenience and safety of operation.
Smart Images

Figure CN224248535U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disconnecting switch technology, and specifically to a disconnecting switch operating handle structure. Background Technology
[0002] A disconnector (or isolating switch) is an important electrical device in a power system, primarily used to isolate circuits, ensuring that electrical equipment is completely disconnected from the power supply during maintenance or repair, thus protecting personnel and equipment. In the de-energized state, it completely isolates a portion of the circuit from the power supply, forming a visible break point (such as contact separation), ensuring no current flows. It provides reliable insulation to prevent accidental energization. Disconnectors typically do not have arc-extinguishing capabilities, therefore they must be operated after the circuit breaker has interrupted the current. Otherwise, an arc may occur, damaging equipment or causing an accident. Some disconnectors can switch small-current circuits (such as voltage transformers or unloaded short-circuit lines). In double-busbar systems, they are used to switch operating modes.
[0003] Currently, due to the small size and smooth surface of some disconnect switches' operating handles, operators often experience slippage when operating them because of the limited hand grip area. Replacing the handles with larger ones would increase the operator's hand grip area and make operation easier, but it would also take up more space and cause inconvenience during use.
[0004] Therefore, the applicant has made beneficial designs and found a way to solve the above problems. The technical solution to be introduced below is generated in this context. Utility Model Content
[0005] The present invention provides a structure for an operating handle of a disconnecting switch to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A disconnect switch operating handle structure includes a disconnect switch body and an operating handle. The operating handle includes an operating part and a handle part. The handle part has receiving grooves extending through both side walls. An extension handle is detachably embedded in the receiving grooves. A retaining strip is provided at the top of the extension handle. A first retaining groove for the retaining strip is provided at the bottom of the handle part. A second retaining groove for the retaining strip is provided on the top wall of the receiving groove. A sliding groove is provided inside the extension handle, and a slider is slidably disposed within the sliding groove. The sliding groove also has a spring for providing elastic force to the slider. A through hole is provided at the top of the extension handle. A fixing rod passing through the through hole is provided at one end of the slider. A first fixing hole for the fixing rod is provided at the bottom of the handle part. A second fixing hole for the fixing rod is provided on the top wall of the receiving groove. Operating grooves are provided on both sides of the sliding groove extending through both side walls of the extension handle. Operating blocks are provided on both sides of the slider, with two operating blocks respectively disposed in two sliding grooves.
[0008] Preferably, the card strip and the card slot one and card slot two are all T-shaped structures.
[0009] Preferably, the surface of the handle portion is provided with several reinforcing ribs.
[0010] Preferably, the outer side wall of the operating block is provided with several anti-slip grooves.
[0011] Preferably, one end of the slide groove has a recessed groove one, the end of the slider away from the fixed rod has a recessed groove two, and the two ends of the spring are respectively embedded in recessed groove one and recessed groove two.
[0012] Preferably, each of the operating slots is provided with a guide rod, and each of the operating blocks is provided with a guide hole for cooperating with the guide rod. Beneficial effects
[0013] The above-mentioned technical solutions in the disconnector operating handle structure provided by this utility model embodiment have at least one of the following technical effects:
[0014] This utility model, through the above-described technical solution, allows the fixed rod to be pulled out of the second fixed hole by pushing the operating block downwards, the extension handle to be removed from the receiving groove, the locking strip to be inserted into the first locking groove, and the fixed rod to be inserted into the first fixed hole by the spring pushing the slider, thus fixing the extension handle to the bottom of the handle, thereby lengthening the handle and extending the lever arm of the operating handle, making it more convenient and effortless for the operator to operate the handle, and providing a larger gripping area for the operator's hand, preventing the operator from slipping when operating the handle; after operation, pushing the operating block downwards allows the fixed rod to be pulled out of the first fixed hole, the locking strip to be pulled out of the first locking groove, completing the disassembly of the extension handle and inserting the extension handle into the receiving groove, the locking strip to be inserted into the second locking groove, and the fixed rod to be inserted into the second fixed hole by the spring pushing the slider, thus fixing the extension handle in the receiving groove and storing it, thereby reducing the size of the operating handle and preventing the operating handle from occupying too much space. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;
[0016] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the operating handle structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the extension handle structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the structure of the present invention in use;
[0020] Figure 6 for Figure 2 A magnified structural diagram at point A.
[0021] The correspondence between the labels and component names in the attached figures is as follows:
[0022] 1. Main disconnect switch; 2. Operating handle; 3. Operating part; 4. Handle part; 5. Receiving groove; 6. Extension handle; 7. Locking bar; 8. Locking groove one; 9. Locking groove two; 10. Slide groove; 11. Sliding block; 12. Spring; 13. Through hole; 14. Fixing rod; 15. Fixing hole one; 16. Fixing hole two; 17. Operating groove; 18. Operating block; 19. Reinforcing rib; 20. Anti-slip groove; 21. Sinking groove one; 22. Sinking groove two; 23. Guide rod; 24. Guide hole. Detailed Implementation
[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments.
[0027] like Figure 1-6 The diagram shown is a structural schematic of a preferred embodiment of the present invention, representing a disconnector switch operating handle structure.
[0028] In this embodiment, the device includes a disconnect switch body 1 and an operating handle 2. The operating handle 2 includes an operating part 3 and a handle part 4. The operating part 3 is mounted on the disconnect switch body 1 and is used to operate the disconnect switch body 1. The handle part 4 has a receiving groove 5 extending through both side walls. An extension handle 6 is detachably embedded in the receiving groove 5. The top of the extension handle 6 has a locking strip 7, and there are at least two locking strips 7. The bottom of the handle part 4 has a first locking groove 8 that matches the locking strip 7. The top wall of the receiving groove 5 has a second locking groove 9 that matches the locking strip 7. There are at least two first locking grooves 8 and second locking grooves 9. The extension handle 6 has a... The slide 10 has a sliding groove 10, in which a slider 11 is slidably mounted. The slide 10 also has a spring 12 for providing elastic force to the slider 11. The top of the extension handle 6 has a through hole 13. One end of the slider 11 has a fixing rod 14 that passes through the through hole 13. The bottom of the handle part 4 has a fixing hole 15 that matches the fixing rod 14. The top wall of the receiving groove 5 has a fixing hole 16 that matches the fixing rod 14. The two sides of the slide 10 have operating grooves 17 that pass through the two side walls of the extension handle 6. The two sides of the slider 11 have operating blocks 18, and the two operating blocks 18 are respectively located in the two slide grooves 10. By pushing the operating block 18 downwards, the fixing rod 14 is pulled out from the fixing hole 16, the extension handle 6 is removed from the receiving groove 5, the locking strip 7 is inserted into the locking groove 8, and the spring 12 pushes the slider 11 to insert the fixing rod 14 into the fixing hole 15, thus fixing the extension handle 6 to the bottom of the handle part 4, thereby lengthening the size of the handle part 4. The lever arm of the operating handle 2 is extended, making it more convenient and effortless for the operator to operate the operating handle 2, and providing a larger gripping area for the operator's hand, avoiding the risk of injury when the operator operates the handle part 4. To prevent slippage, after operation, push the operating block 18 downwards to pull the fixing rod 14 out of the fixing hole 15, pull the locking strip 7 out of the locking slot 8, complete the disassembly of the extension handle 6, and insert the extension handle 6 into the receiving slot 5. The locking strip 7 is inserted into the locking slot 9. The spring 12 pushes the slider 11 to insert the fixing rod 14 into the fixing hole 16, thus fixing the extension handle 6 in the receiving slot 5 and storing the extension handle 6. This reduces the size of the operating handle 2, so that the operating handle 2 does not occupy too much space.
[0029] In this embodiment, the locking strip 7 and the first and second locking slots 8 and 9 are all T-shaped structures. Through the T-shaped structure, the locking strip 7 can be inserted into the first and second locking slots 8 and 9 respectively. This structure can achieve quick positioning and stable locking, and the assembly and disassembly of the extension handle 6 and the handle part 4 can be completed without complicated tools.
[0030] In this embodiment, the surface of the handle part 4 is provided with a plurality of reinforcing ribs 19, which strengthen the handle part 4.
[0031] In this embodiment, the outer wall of the operating block 18 is provided with a plurality of anti-slip grooves 20. The anti-slip grooves 20 increase the friction of the outer wall of the operating block 18 and prevent the hand from slipping when pushing the operating block 18.
[0032] In this embodiment, one end of the slide groove 10 is provided with a recessed groove 21, and the end of the slider 11 away from the fixed rod 14 is provided with a recessed groove 22. The two ends of the spring 12 are respectively inserted into the recessed groove 21 and the recessed groove 22. The spring 12 provides elastic force to the slider 11, so that the slider 11 pushes the fixed rod 14 to be inserted into the fixed hole 15 or the fixed hole 26.
[0033] In this embodiment, each of the operating slots 17 is provided with a guide rod 23, and each of the operating blocks 18 is provided with a guide hole 24 that cooperates with the guide rod 23. The guide rod 23 and the guide hole 24 are slidably connected. The guide rod 23 and the guide hole 24 cooperate to guide the operating block 18, making it slide more smoothly in the operating slot 17.
[0034] The present invention relates to a disconnect switch operating handle structure, the installation method, connection method or setting method of which are all common mechanical methods, and any method that can achieve its beneficial effect can be implemented.
[0035] All technologies not described in detail in this utility model are known technologies. Those skilled in the art can easily implement this utility model based on their understanding of this specification, and the contents shown in the accompanying drawings are part of this specification.
[0036] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.
Claims
1. A disconnector switch operating handle structure, comprising a disconnector switch body (1) and an operating handle (2), characterized in that: The operating handle (2) includes an operating part (3) and a handle part (4). The handle part (4) has a receiving groove (5) extending through both side walls. An extension handle (6) is detachably embedded in the receiving groove (5). A retaining strip (7) is provided at the top of the extension handle (6). A first retaining groove (8) for the retaining strip (7) is provided at the bottom of the handle part (4). A second retaining groove (9) for the retaining strip (7) is provided on the top wall of the receiving groove (5). A sliding groove (10) is provided inside the extension handle (6). A slider (11) is slidably provided in the sliding groove (10). The sliding groove (10) is also provided for the slider (11). A spring (12) provides elasticity. A through hole (13) is provided at the top of the extension handle (6). A fixing rod (14) is provided at one end of the slider (11) and passes through the through hole (13). A fixing hole (15) is provided at the bottom of the handle (4) to cooperate with the fixing rod (14). A fixing hole (16) is provided on the top wall of the receiving groove (5) to cooperate with the fixing rod (14). An operating groove (17) is provided on both sides of the slide groove (10) through the two side walls of the extension handle (6). An operating block (18) is provided on both sides of the slider (11). The two operating blocks (18) are respectively located in the two slide grooves (10).
2. The disconnector switch operating handle structure according to claim 1, characterized in that: The card strip (7) and the card slot one (8) and card slot two (9) are all T-shaped structures.
3. The structure of a disconnector operating handle according to claim 1, characterized in that: The surface of the handle part (4) is provided with several reinforcing ribs (19).
4. The structure of a disconnector operating handle according to claim 1, characterized in that: The outer wall of the operating block (18) is provided with several anti-slip grooves (20).
5. The structure of a disconnector operating handle according to claim 1, characterized in that: The slide (10) has a recessed groove (21) at one end, and the slider (11) has a recessed groove (22) at the end away from the fixed rod (14). The two ends of the spring (12) are respectively inserted into the recessed groove (21) and the recessed groove (22).
6. The structure of a disconnector operating handle according to claim 1, characterized in that: Each of the operating slots (17) is provided with a guide rod (23), and each of the operating blocks (18) is provided with a guide hole (24) to cooperate with the guide rod (23).