Guarded knife switch socket
Patent Information
- Application Number
- CN202520636015.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-04-07
AI Technical Summary
[0002]刀开关是一种带刀刃形触头的开关电器,主要做电路中隔离电源用,或作为不频繁地接通和分断额定电流以下的负载用,刀开关处于断开位置时,可明显观察到,能够确保操作者的人身安全,现有的刀开关为了提高人们在推动刀片时的安全性,都会在座体上安装上防护盖,而防护盖通常都是通过多个螺钉与座体之间进行固定,当刀开关损坏时需要维修人员使用工具对多个螺钉进行拆卸,拆卸效率低,进行影响整体的检修效率
[0008]Compared with the prior art, the beneficial effects of this utility model are: the protective cover and the cover plate are separate structures, which are convenient to disassemble. The cover composed of the protective cover and the cover plate can be quickly installed and disassembled between the protective cover and the base through the fixing mechanism, which makes it convenient for workers to quickly disassemble, inspect and install the inside of the base without the need for tools, thereby improving the maintenance efficiency.
Smart Images

Figure CN224745631U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of knife switch technology, specifically a protective knife switch socket. Background Technology
[0002] A knife switch is a switching device with blade-shaped contacts, mainly used for isolating power supplies in circuits or for infrequently connecting and disconnecting loads below the rated current. When a knife switch is in the off position, it is clearly visible, ensuring the operator's personal safety. To improve safety when pushing the blade, existing knife switches are equipped with protective covers on the base. These covers are usually fixed to the base with multiple screws. When a knife switch is damaged, maintenance personnel need to use tools to remove these screws, which is inefficient and affects the overall maintenance efficiency. Utility Model Content
[0003] The purpose of this invention is to provide a protective knife switch socket to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a protective knife switch socket, comprising a base and a protective cover detachably mounted on the base. The base has a slot, and the inner wall of the protective cover is fixedly connected to a strip that mates with the slot, allowing the protective cover to be inserted into the slot and connected to the base. The base has a fixing mechanism, which secures the protective cover after it is inserted into the base. The fixing mechanism includes a fixing plate, a T-shaped block fixedly connected to the fixing plate, and a spring fixedly connected to the bottom of the T-shaped block. The base has a T-shaped groove that mates with the T-shaped block, allowing the fixing plate to slide against the base after the T-shaped block is inserted into the T-shaped groove. The spring is fixedly connected to the bottom of the T-shaped groove. The protective cover has a cover plate with a fixing groove. A protrusion is fixedly connected to the fixing plate and can be inserted into the fixing groove. The fixing plate has a limiting groove that mates with the side of the protective cover, and a stop block is fixedly connected to the side of the protective cover.
[0005] In a preferred embodiment of this utility model, a first clamping plate and a second clamping plate are fixedly connected to the base. A blade is rotatably mounted on the first clamping plate. An insulating base is fixedly connected to one end of the blade, and a handle is fixedly connected to the insulating base.
[0006] As a preferred embodiment of this utility model, wiring holes are provided at equal intervals on both the protective cover and the fixing plate.
[0007] As a preferred embodiment of this utility model, the protective cover is provided with a limiting strip and a lap strip, and the cover plate is provided with an avoidance opening.
[0008] Compared with the prior art, the beneficial effects of this utility model are: the protective cover and the cover plate are separate structures, which are convenient to disassemble. The cover composed of the protective cover and the cover plate can be quickly installed and disassembled between the protective cover and the base through the fixing mechanism, which makes it convenient for workers to quickly disassemble, inspect and install the inside of the base without the need for tools, thereby improving the maintenance efficiency. Attached Figure Description
[0009] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the base structure of this utility model; Figure 3 This is a schematic diagram of the disassembly structure of the protective cover and the base of this utility model; Figure 4 This is a schematic diagram of the fixing mechanism structure of this utility model; Figure 5 This is a schematic diagram of the disassembly structure of the cover plate and protective cover of this utility model.
[0010] In the diagram: 1. Base; 2. Protective cover; 3. First clamping plate; 4. Second clamping plate; 5. Blade; 6. Insulating base; 7. Handle; 8. Slot; 9. Insert; 10. Fixing slot; 11. T-slot; 12. Fixing plate; 13. Protrusion; 14. T-block; 15. Spring; 16. Limiting slot; 17. Wiring hole; 18. Stop; 19. Cover plate; 20. Clearance opening; 21. Limiting strip; 22. Overlap strip. Detailed Implementation
[0011] 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.
[0012] Please see Figures 1 to 5This utility model provides a technical solution: a protective knife switch socket, including a base 1 and a protective cover 2 detachably mounted on the base 1. The protective cover 2 can improve the overall safety of the knife switch socket. A slot 8 is provided on the base 1. A strip 9 that mates with the slot 8 is fixedly connected to the inner wall of the protective cover 2, allowing the protective cover 2 to be inserted into the slot 8 via the strip 9 to achieve insertion with the base 1. A fixing mechanism is provided on the base 1. After the protective cover 2 is inserted into the base 1, it can be fixed by the fixing mechanism. The fixing mechanism includes a fixing plate 12, a T-shaped block 14 fixedly connected to the fixing plate 12, and a spring 15 fixedly connected to the bottom of the T-shaped block 14. A T-shaped groove 11 that mates with the T-shaped block 14 is provided on the base 1. After the T-shaped block 14 is inserted into the T-shaped groove 11, the fixing plate 12 can slide between itself and the base 1. The spring 15 is fixedly connected to the bottom of the T-shaped groove 11. When fixed to the T-slot 11, 15 is hidden in the T-slot 11. The protective cover 2 is provided with a cover plate 19, and the cover plate 19 is provided with a fixing groove 10. A protrusion 13 is fixedly connected to the fixing plate 12. The protrusion 13 can be inserted into the fixing groove 10. The fixing plate 12 is provided with a limiting groove 16, which can cooperate with the side of the protective cover 2. A stop block 18 is fixedly connected to the side of the protective cover 2. When the fixing plate 12 is fixed to the protective cover 2, the limiting groove 16 is inserted into the side of the protective cover 2, and the end of the fixing plate 12 will strengthen the resistance against the stop block 18. A first clamping plate 3 and a second clamping plate 4 are fixedly connected to the base 1. A blade 5 is rotatably provided on the first clamping plate 3. An insulating seat 6 is fixedly connected to one end of the blade 5. A handle 7 is fixedly connected to the insulating seat 6. By gripping the handle 7 and rotating the blade 5, the first clamping plate 3 and the second clamping plate 4 can be connected or disconnected.
[0013] Both the protective cover 2 and the fixing plate 12 are provided with wiring holes 17 at equal intervals, and the wires can be connected to the corresponding first clamping plate 3 and second clamping plate 4 through the wiring holes 17.
[0014] The protective cover 2 is provided with a limiting strip 21 and a lap strip 22, and the cover plate 19 is provided with an avoidance opening 20. The cover plate 19 can be inserted downward from one end of the protective cover 2 to match the protective cover 2. The avoidance opening 20 on the cover plate 19 will avoid the limiting strip 21. The cover plate 19 can be placed on the lap strip 22, and then the lateral limitation is achieved by the limiting strip 21.
[0015] Specifically, when the protective cover 2 needs to be disassembled, simply push the fixing plate 12 downwards, so that the T-shaped block 14 slides down in the T-shaped groove 11 and squeezes the spring 15, causing the protrusion 13 to disengage from the fixing groove 10, and the limiting groove 16 will also disengage downwards from the stop block 18. Then pull the cover plate 19 upwards, and then pull the protective cover 2 to quickly remove the protective cover 2. When installing the protective cover 2, simply align the insert 9 with the slot 8 and insert the protective cover 2 into the base 1, then insert the cover plate 19 downwards. The limiting strip 21 will pass through the clearance opening 20, and the cover plate 19 will overlap the overlapping strip 22. Then, under the elastic force of the spring 15, the fixing plate 12 pushes the protrusion 13 into the fixing groove 10, and the limiting groove 16 inserts into the side edge of the protective cover 2 and abuts against the stop block 18.
[0016] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.
[0017] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.
[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A protective knife switch socket, comprising a base (1) and a protective cover (2) detachably mounted on the base (1), characterized in that: The base (1) has a slot (8) and the inner wall of the protective cover (2) is fixedly connected with a strip (9) that mates with the slot (8), so that the protective cover (2) can be inserted into the slot (8) through the strip (9) to achieve insertion with the base (1). The base (1) is provided with a fixing mechanism, and the protective cover (2) can be fixed by the fixing mechanism after being inserted with the base (1). The fixing mechanism includes a fixing plate (12), a T-shaped block (14) is fixedly connected to the fixing plate (12), and a spring (15) is fixedly connected to the bottom of the T-shaped block (14). The base (1) has a slot (8) that mates with the T-shaped block (14). The T-shaped groove (11) is inserted into the T-shaped groove (11), and the fixing plate (12) can slide between the base (1). The spring (15) is fixedly connected to the bottom of the T-shaped groove (11). The protective cover (2) is provided with a cover plate (19), and the cover plate (19) is provided with a fixing groove (10). The fixing plate (12) is fixedly connected with a protrusion (13), which can be inserted into the fixing groove (10). The fixing plate (12) is provided with a limiting groove (16), which can cooperate with the side of the protective cover (2). The side of the protective cover (2) is fixedly connected with a stop block (18).
2. A guarded knife switch socket according to claim 1, characterised in that: The base (1) is fixedly connected to a first clamping plate (3) and a second clamping plate (4). A blade (5) is rotatably mounted on the first clamping plate (3). An insulating seat (6) is fixedly connected to one end of the blade (5). A handle (7) is fixedly connected to the insulating seat (6).
3. A guarded knife switch socket according to claim 2, wherein: Wiring holes (17) are provided at equal intervals on both the protective cover (2) and the fixing plate (12).
4. A guarded knife switch socket according to claim 2, wherein: The protective cover (2) is provided with a limiting strip (21) and a gusset strip (22), and the cover plate (19) is provided with an avoidance opening (20).