A protection device against electric shock
Patent Information
- Application Number
- CN202522181269.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-10-15
AI Technical Summary
[0004]为了克服上述的技术问题,本实用新型的目的在于提供一种防止触电的保护装置,以解决上述背景技术中提出的现有的漏电保护器的接口处未设置防护结构,其接口直接对外界敞开,不使用时灰尘等杂物容易进入,进而导致漏电保护器损坏,使用起来较为不便的问题
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Figure CN224721261U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electric shock protection technology, specifically relating to a protective device to prevent electric shock. Background Technology
[0002] A protective grounding device is a device that prevents electric shock. When a circuit or electrical equipment leaks current, the protective grounding device grounds the metal casing of the equipment, allowing the leakage current to flow into the earth through the grounding wire, thereby reducing the risk of electric shock when a person comes into contact with it. Common types include residual current devices (RCDs) and overload protection devices. When the leakage current of a circuit or electrical equipment exceeds the device's setting value, or when a person or animal is in danger of electric shock, it can quickly activate, cut off the power supply, prevent the accident from escalating, and ensure the safety of people and equipment.
[0003] Existing residual current devices (RCDs) lack protective structures at their interfaces, leaving them directly exposed to the outside. When not in use, dust and other debris can easily enter, potentially damaging the RCD and causing inconvenience. Therefore, we propose a protective device to prevent electric shock. Utility Model Content
[0004] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a protective device to prevent electric shock, so as to solve the problem mentioned in the background art that the interface of the existing leakage current protection device does not have a protective structure, its interface is directly open to the outside, and dust and other debris can easily enter when not in use, which will lead to damage to the leakage current protection device and make it inconvenient to use.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective device for preventing electric shock, comprising a residual current device (RCD), wherein the top of the RCD is provided with multiple sets of interfaces, and the top of each set of interfaces is provided with a protective structure, the protective structure comprising a fixed outer shell, a sliding groove firstly formed at the bottom of the fixed outer shell, guide rods fixedly connected to both sides of the sliding groove firstly, a spring firstly sleeved on the surface of the guide rods, a slot formed at the top of the fixed outer shell, a sliding plate firstly slidably connected inside the sliding groove firstly, a protective baffle fixedly connected to the surface of the sliding plate firstly, a sliding groove secondly formed at the top of the protective baffle, a sliding groove secondly formed at the top of the protective baffle, a sliding plate secondly slidably connected inside the sliding groove secondly, three sets of springs secondly fixedly connected to the bottom of the sliding plate secondly, a plug fixedly connected to the top of the sliding plate secondly, and insulating pads fixedly connected to both sides of the RCD.
[0006] Preferably, the surface of the sliding plate is symmetrically provided with two sets of circular grooves, and the sliding plate is slidably connected to the surface of the guide rod through the circular grooves.
[0007] Preferably, the two ends of the spring are fixedly connected to the inner wall of the groove and the surface of the sliding plate, respectively, and the inner surface of the spring does not contact the surface of the guide rod.
[0008] Preferably, the protective baffle is made of transparent acrylic sheet, and the protective baffle is slidably connected to the inner wall of one end of the slide groove.
[0009] Preferably, the width of the second sliding plate is greater than the width of the insert block, and the two ends of the second spring are fixedly connected to the bottom of the second sliding plate and the bottom of the inner wall of the second sliding groove, respectively.
[0010] Preferably, the insert extends through the top of the second groove, the cross-section of the insert is equal to the cross-section of the slot, and the top of the insert is provided with rounded corners.
[0011] Preferably, the insulating pad is made of rubber and completely covers the left and right sides of the leakage current protector.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This electric shock protection device features a protective structure. When connecting a line to an interface, pressing down the plug causes the sliding plate two to slide within the slide groove two, compressing the spring two and aligning the top of the plug with the upper surface of the protective baffle. The plug no longer obstructs the movement of the protective baffle, pushing it towards the interior of the housing. The sliding plate one compresses the spring one. When the plug reaches the bottom of the slot, the spring two pushes the sliding plate two upwards, inserting the plug into the slot and fixing the protective baffle in the slide groove one. This allows for the connection of the line and interface. When not in use, pressing down the plug moves it from the slot into the slide groove two, preventing it from locking into the slot. The spring one then pushes the sliding plate one, pushing the protective baffle out of the slide groove one, protecting the interface and preventing it from being directly exposed. This also prevents dust and other debris from entering and damaging the leakage current protector when not in use.
[0013] 2. This type of electric shock protection device is equipped with an insulating pad, which increases the overall insulation of the leakage current protector. When the leakage current protector is damaged, it can be disassembled more safely and conveniently by holding the insulating pad, avoiding electric shock accidents when maintenance personnel touch the leakage current protector. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is an exploded view of the structure of the leakage current protector and insulating pad of this utility model; Figure 3 This is a schematic diagram of the dynamic structure of the protective structure of this utility model; Figure 4 This is a schematic diagram of the explosion-proof structure of the protective structure of this utility model; Figure 5 This is a partial exploded cross-sectional view of the protective structure of this utility model.
[0015] In the diagram: 1. Residual current device; 11. Interface; 2. Protective structure; 21. Fixed housing; 22. Slide 1; 23. Guide rod; 24. Spring 1; 25. Slot; 26. Sliding plate 1; 27. Protective baffle; 28. Slide 2; 29. Sliding plate 2; 210. Spring 2; 211. Insert block; 3. Insulating pad. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-5 One embodiment provided by this utility model: A protective device for preventing electric shock includes a residual current device (RCD) 1. The RCD 1 has multiple sets of interfaces 11 on its top, and each set of interfaces 11 has a protective structure 2 on its top. The protective structure 2 includes a fixed housing 21. A groove 22 is formed at the bottom of the fixed housing 21. Guide rods 23 are fixedly connected to both sides of the groove 22. Springs 24 are sleeved on the surfaces of the guide rods 23. A slot 25 is formed at the top of the fixed housing 21. A sliding plate 26 is slidably connected inside the groove 22. A protective baffle 27 is fixedly connected to the surface of the sliding plate 26. The top of the device has a second sliding groove 28, and a second sliding plate 29 is slidably connected inside the second sliding groove 28. Three sets of springs 210 are fixedly connected to the bottom of the second sliding plate 29, and a plug 211 is fixedly connected to the top of the second sliding plate 29. Insulating pads 3 are fixedly connected to both sides of the leakage current protector 1, and a protective structure 2 is set up. When it is necessary to connect the line to the interface 11, press down the plug 211, which drives the second sliding plate 29 to slide in the second sliding groove 28, causing the plug 211 to slide into the second sliding plate 29, compressing the second spring 210, so that the top of the plug 211 is flush with the upper surface of the protective baffle 27. The insert 211 no longer obstructs the movement of the protective baffle 27, pushing the protective baffle 27 into the interior of the fixed housing 21. The sliding plate 26 compresses the spring 24. When the insert 211 reaches the bottom of the slot 25, the spring 210 pushes the sliding plate 29 upwards, causing the insert 211 to be inserted into the slot 25. This fixes the position of the protective baffle 27 within the sliding groove 22, allowing the wiring and interface 11 to be interconnected. When not in use, the insert 211 is pressed down, moving it from the slot 25 into the sliding groove 28, allowing the insert to... 211 no longer engages with slot 25, and under the action of spring 24, pushes sliding plate 26 to push protective baffle 27 out of slide groove 22, protecting interface 11 and preventing interface 11 from being directly exposed to the outside. When not in use, it prevents dust and other debris from entering and damaging the leakage current protector 1. An insulating pad 3 is provided to increase the overall insulation of the leakage current protector 1. When the leakage current protector 1 is damaged, it can be disassembled more safely and conveniently by holding the insulating pad 3, avoiding electric shock accidents when maintenance personnel touch the leakage current protector 1.
[0018] Furthermore, two sets of circular grooves are symmetrically formed on the surface of the sliding plate 26. The sliding plate 26 is slidably connected to the surface of the guide rod 23 through the circular grooves, and the guide rod 23 increases the stability of the sliding plate 26 when sliding.
[0019] Furthermore, the two ends of the spring 24 are fixedly connected to the inner wall of the slide groove 22 and the surface of the sliding plate 26, respectively. The inner surface of the spring 24 does not contact the surface of the guide rod 23. When there is no external force, the spring 24 pushes the sliding plate 26, causing it to abut against the inner wall of the slide groove 22 near the interface 11. At this time, the protective baffle 27 is at the top of the interface 11.
[0020] Furthermore, the protective baffle 27 is made of transparent acrylic sheet. The protective baffle 27 is slidably connected to the inner wall of one end of the slide groove 22. The internal condition of the interface 11 can be directly observed through the protective baffle 27, and dust and other debris are prevented from entering.
[0021] Furthermore, the width of the sliding plate 29 is greater than the width of the insert 211. The two ends of the spring 210 are fixedly connected to the bottom of the sliding plate 29 and the bottom of the inner wall of the groove 28, respectively. The sliding plate 29 limits the maximum movement distance of the insert 211 to prevent the insert 211 from sliding out of the groove 28.
[0022] Furthermore, the insert 211 penetrates the top of the slide groove 28. The cross-section of the insert 211 is equal to the cross-section of the slot 25. The top of the insert 211 is rounded. When the insert 211 is inserted into the slot 25, the insert 211 and the slot 25 engage with each other, thereby fixing the position of the protective baffle 27 in the slide groove 22. The rounded corners at the top of the insert 211 facilitate its movement within the slide groove 28 and the slot 25.
[0023] Furthermore, the insulating pad 3 is made of rubber and completely covers the left and right sides of the residual current device 1. The insulating pad 3 increases the overall insulation of the residual current device 1. When the residual current device 1 is damaged, it can be disassembled more safely and conveniently by holding the insulating pad 3.
[0024] Working principle: When the line needs to be connected to interface 11, press down the plug 211, which drives the sliding plate 29 to slide within the sliding groove 28. This causes the plug 211 to slide into the sliding plate 29, compressing the spring 210. This makes the top of the plug 211 flush with the upper surface of the protective baffle 27, so that the plug 211 no longer obstructs the movement of the protective baffle 27. This pushes the protective baffle 27 into the interior of the fixed housing 21, compressing the spring 24 via the sliding plate 26. When the plug 211 moves to the bottom of the slot 25, the spring 210 pushes the sliding plate 29 upward, allowing the plug 211 to be inserted into the slot 25. Within 5, the protective baffle 27 is fixed in the slide groove 22, allowing the circuit and interface 11 to be interconnected. When not in use, the plug 211 is pressed down, causing it to move from the slot 25 into the slide groove 28, so that the plug 211 is no longer locked to the slot 25. Then, under the action of the spring 24, the sliding plate 26 is pushed to push the protective baffle 27 out of the slide groove 22, thus protecting the interface 11. When the leakage current protector 1 is damaged, it can be disassembled more safely and conveniently by holding the insulating pad 3, avoiding electric shock accidents when maintenance personnel touch the leakage current protector 1.
[0025] 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.
Claims
1. A protective device for preventing electric shock, comprising a residual current device (1), characterized in that: The leakage current protector (1) has multiple sets of interfaces (11) on its top. Each set of interfaces (11) has a protective structure (2) on its top. The protective structure (2) includes a fixed housing (21). The bottom of the fixed housing (21) has a sliding groove (22). Guide rods (23) are fixedly connected to both sides of the sliding groove (22). A spring (24) is sleeved on the surface of the guide rod (23). The top of the fixed housing (21) has a slot (25). The sliding groove (22) The internal sliding connection is a sliding plate (26), the surface of the sliding plate (26) is fixedly connected to a protective baffle (27), the top of the protective baffle (27) is provided with a sliding groove (28), the internal sliding connection of the sliding groove (28) is a sliding plate (29), the bottom of the sliding plate (29) is fixedly connected to three sets of springs (210), the top of the sliding plate (29) is fixedly connected to a plug (211), and the two sides of the leakage current protector (1) are fixedly connected to insulating pads (3).
2. The protective device for preventing electric shock according to claim 1, characterized in that: The surface of the sliding plate (26) is symmetrically provided with two sets of circular grooves, and the sliding plate (26) is slidably connected to the surface of the guide rod (23) through the circular grooves.
3. The protective device for preventing electric shock according to claim 1, characterized in that: The two ends of the spring (24) are fixedly connected to the inner wall of the groove (22) and the surface of the sliding plate (26), respectively, and the inner surface of the spring (24) does not contact the surface of the guide rod (23).
4. The protective device for preventing electric shock according to claim 1, characterized in that: The protective baffle (27) is made of transparent acrylic sheet. The protective baffle (27) is slidably connected to the inner wall of one end of the slide groove (22).
5. The protective device for preventing electric shock according to claim 1, characterized in that: The width of the second sliding plate (29) is greater than the width of the insert (211), and the two ends of the second spring (210) are fixedly connected to the bottom of the second sliding plate (29) and the bottom of the inner wall of the second groove (28), respectively.
6. The protective device for preventing electric shock according to claim 1, characterized in that: The insert (211) passes through the top of the slide groove (28), the cross-section of the insert (211) is equal to the cross-section of the slot (25), and the top of the insert (211) is provided with rounded corners.
7. The protective device for preventing electric shock according to claim 1, characterized in that: The insulating pad (3) is made of rubber and completely covers the left and right sides of the leakage current protector (1).