A protective cover shell with a quick socket

CN224669058UActive Publication Date: 2026-08-21MERTON ELECTRIC (HUBEI) CO LTD
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Patent Information

Application Number
CN202522109028.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-08-21
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

[0003]然而,此类插座在实际应用,尤其是应急供电场景中,其可靠性面临挑战

Benefits of technology

[0018] 1. By providing an observation hole with a transparent lens on the protective cover directly facing the female plug terminal, the condition of the female plug terminal can be directly inspected from the outside without opening the protective cover. This allows users to promptly detect abnormalities such as deformation, cracking, burning, blackening, or oxidation and rust on the female plug terminal, thus providing early warning and maintenance before potential faults cause accidents or affect emergency use, greatly improving the safety and emergency reliability of the socket. At the same time, this design avoids wear and tear on the hinge or snap-fit ​​structure caused by frequent opening and closing of the protective cover, extending the service life of the protective cover and reducing the complexity of maintenance work.

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Abstract

The application relates to a quick socket with a visible protective cover, and belongs to the technical field of quick sockets. The quick socket comprises a fixed panel and a female plug. The fixed panel is provided with a through hole for the plug-in end of the female plug to pass through. The side of the fixed panel close to the plug-in end of the female plug is provided with a protective cover. The protective cover is provided with an observation hole. The observation hole is arranged opposite to the plug-in end of the female plug. A transparent lens is detachably fixed in the observation hole. The transparent lens is arranged on the protective cover. The state of the plug-in end of the female plug can be directly visually checked from the outside without opening the protective cover. Whether the plug-in end of the female plug is deformed, cracked, blackened by ablation, oxidized and corroded or has other abnormal conditions can be found in time, early warning is realized, and the safety and emergency reliability of the socket are improved. Meanwhile, the design avoids abrasion caused by frequent opening and closing of the protective cover, prolongs the service life of the protective cover, and improves the convenience of daily maintenance.
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Description

Technical Field

[0001] This application relates to the field of quick-connect sockets, and more particularly to a quick-connect socket with an internally visible protective housing. Background Technology

[0002] Currently, in applications requiring rapid power connection, such as power distribution and lighting, widely used fast sockets typically consist of a female plug and a mounting panel for securing the female plug. The mounting panel has a through hole for the female plug's insertion end to pass through, and a protective cover is installed on the side closest to the female plug's insertion end. The protective cover shields the insertion area, providing basic protection against dust and foreign objects.

[0003] However, the reliability of such sockets faces challenges in practical applications, especially in emergency power supply scenarios. Due to the protective casing, operators cannot directly observe the working status of the internal female plug terminals from the outside, making it difficult to detect potential faults such as socket deformation, cracking, internal burning, or contact oxidation caused by wear from plugging and unplugging, overload heating, or environmental corrosion. This problem is particularly prominent when emergency power is needed; often, the damaged female plug terminals are only discovered after the protective casing is opened, delaying valuable emergency response time and potentially leading to safety accidents.

[0004] Furthermore, to ensure electrical safety, users need to periodically open the protective cover for inspection. However, repeated opening and closing can easily cause wear and tear on the hinged or snap-fit ​​connection structure between the protective cover and the fixed panel, thus affecting its protective performance and service life. Therefore, this structural defect in existing sockets makes them significantly inadequate in terms of emergency response efficiency and ease of daily maintenance. Utility Model Content

[0005] To ensure the reliability of emergency response and improve the convenience of daily maintenance, this application provides a quick-connect socket with an internally visible protective cover.

[0006] This application provides a quick-connect socket with a protective housing that allows internal viewing, employing the following technical solution:

[0007] A quick-connect socket with an internally visible protective cover includes a fixed panel and a female plug. The fixed panel has a through hole for the female plug's insertion end to pass through. A protective cover is provided on the side of the fixed panel near the female plug's insertion end. The protective cover has an observation hole, which is positioned directly opposite the female plug's insertion end. A transparent lens is detachably fixed in the observation hole.

[0008] Optionally, the observation hole has a snap-fit ​​groove on its wall, and the outer periphery of the transparent lens has a snap-fit ​​flange that matches the snap-fit ​​groove.

[0009] Optionally, the snap-fit ​​flange has a guide surface on the side near the female insert.

[0010] Optionally, the transparent lens is made of at least one of explosion-proof glass, flame-retardant transparent resin, and flame-retardant transparent plastic.

[0011] Optionally, the protective cover is also provided with a wiping mechanism for wiping the transparent lens.

[0012] Optionally, the wiping mechanism includes a movable plate disposed on the protective housing and a wiping strip disposed on the movable plate, the movable plate being configured to move relative to the protective housing so that the wiping strip wipes the outer surface of the transparent lens.

[0013] Optionally, the protective cover is provided with guide rails for sliding the movable plate, and the number of guide rails is two, which are respectively located at both ends of the movable plate.

[0014] Optionally, a blocking part is fixed at the same end of the two guide rails, and a rail groove opening for the movable plate to be inserted is provided at the other end. Each guide rail is also provided with a blocking member for blocking the rail groove opening.

[0015] Optionally, the barrier includes an integrally formed plug and plug head. The guide rail is provided with a socket for the plug to be inserted. The end of the plug away from the plug head extends into the rail groove opening. A magnetic ring is embedded in the guide rail. The magnetic ring is coaxially arranged with the socket. The end of the plug head near the plug is provided with a first magnetic plate.

[0016] Optionally, the movable plate has a mounting groove on the side near the transparent lens, and the wiping strip is fixed to the bottom wall of the mounting groove by Velcro.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. By providing an observation hole with a transparent lens on the protective cover directly facing the female plug terminal, the condition of the female plug terminal can be directly inspected from the outside without opening the protective cover. This allows users to promptly detect abnormalities such as deformation, cracking, burning, blackening, or oxidation and rust on the female plug terminal, thus providing early warning and maintenance before potential faults cause accidents or affect emergency use, greatly improving the safety and emergency reliability of the socket. At the same time, this design avoids wear and tear on the hinge or snap-fit ​​structure caused by frequent opening and closing of the protective cover, extending the service life of the protective cover and reducing the complexity of maintenance work.

[0019] 2. The snap-fit ​​groove and snap-fit ​​flange design make the installation and removal of the transparent lens simple and quick, requiring no complicated tools, and facilitating the cleaning or replacement of the transparent lens. The snap-fit ​​mechanism also creates a uniform clamping force between the transparent lens and the viewing hole wall, which helps improve the sealing effect and reduces the intrusion path of dust and moisture, thus ensuring the original protective performance of the protective cover while achieving the internal viewing function. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a quick-connect socket with an internally visible protective cover, according to Embodiment 1 of this application.

[0021] Figure 2 This is an exploded view showing the protective cover in the closed state in Embodiment 1 of this application.

[0022] Figure 3 This is a cross-sectional view illustrating the assembly relationship between the transparent lens and the protective cover in Embodiment 1 of this application.

[0023] Figure 4 This is a schematic diagram of the overall structure of a quick-connect socket with an internally visible protective cover, according to Embodiment 2 of this application.

[0024] Figure 5 This is an exploded view illustrating the wiping mechanism in Embodiment 2 of this application.

[0025] Figure 6 This is a cross-sectional view showing the positional relationship between the barrier and the guide rail in Embodiment 2 of this application.

[0026] Figure 7 yes Figure 6 A magnified view of a portion of point A in the middle.

[0027] Figure 8 This is an exploded view illustrating the fixing method of the movable plate and wiping strip in Embodiment 2 of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Fixed panel; 11. Through hole; 2. Female plug; 3. Protective cover; 31. Observation hole; 311. Snap-fit ​​groove; 32. Guide rail; 321. Barrier part; 322. Rail groove opening; 323. Insertion hole; 324. Magnetic ring; 4. Transparent lens; 41. Snap-fit ​​flange; 411. Guide surface; 5. Wiping mechanism; 51. Movable plate; 511. Drive handle; 512. Guide cut surface; 513. Chamfer; 514. Mounting groove; 52. Wiping strip; 53. Velcro; 6. Barrier part; 61. Plug; 62. Plug head; 621. First magnetic guide plate; 622. Second magnetic guide plate. Detailed Implementation

[0029] The following combination Figures 1-8 This application will be described in further detail below.

[0030] Example 1:

[0031] This application discloses a quick-connect socket with an internally visible protective housing. (See reference...) Figure 1 and Figure 2 A quick-connect socket with an internally visible protective cover includes a fixed panel 1 and a female plug 2 fixedly positioned relative to each other. The fixed panel 1 has a through hole 11 for the plug end of the female plug 2 to pass through. To improve the socket's protective performance, a protective cover 3 is hinged to the side of the fixed panel 1 near the plug end of the female plug 2.

[0032] Reference Figure 1 and Figure 2 In order to enable the function of visually inspecting the status of the female plug 2 from the outside without opening the protective cover 3, the protective cover 3 is provided with an observation hole 31. The observation hole 31 is set directly opposite the plug end of the female plug 2, and a transparent lens 4 is detachably fixed in the observation hole 31.

[0033] Reference Figure 2 and Figure 3 The observation hole 31 has a snap-fit ​​groove 311 on its wall, and the outer periphery of the transparent lens 4 is integrally formed with a snap-fit ​​flange 41 that matches the snap-fit ​​groove 311. This makes the installation and removal of the transparent lens 4 simple and quick, requiring no complex tools, and facilitates cleaning or replacement of the transparent lens 4. The snap-fit ​​mechanism also creates a uniform clamping force between the transparent lens 4 and the wall of the observation hole 31, helping to improve the sealing effect and reduce the intrusion path of dust and moisture, thus ensuring the original protective performance of the protective housing 3 while achieving the internal viewing function. To improve the assembly efficiency of the transparent lens 4 and reduce the risk of damage to the lens or housing due to improper installation, a guide surface 411 is provided on the side of the snap-fit ​​flange 41 near the female insert 2. In this embodiment 1, the guide surface 411 is a sloped or curved surface, which can guide and position the transparent lens 4 during installation.

[0034] Reference Figure 1 The transparent lens 4 is made of at least one of the following materials: explosion-proof glass, flame-retardant transparent resin, and flame-retardant transparent plastic. When two or three of these materials are used, the interfaces between adjacent materials are bonded and fixed with high-temperature resistant transparent adhesive. By selecting the above-mentioned materials for the transparent lens 4, it is ensured that it has the necessary light transmittance to meet observation requirements. More importantly, these materials either have high mechanical strength, making them less prone to breakage in accidental impacts, and even if they break, they will form particles without sharp edges, improving safety; or they have good flame-retardant properties, effectively preventing the spread of flames when electrical faults cause high temperatures or open flames, and will not become a path for the spread of fire, thus ensuring that the transparent lens 4 itself will not introduce new safety hazards and improving the overall safety level of the socket.

[0035] The implementation principle of the quick-connect socket with an internally visible protective cover in Embodiment 1 of this application is as follows: By providing an observation hole 31 with a transparent lens 4 on the protective cover 3 directly facing the female plug 2's insertion end, the status of the female plug 2's insertion end can be directly inspected from the outside without opening the protective cover 3. This allows users to promptly detect abnormalities such as deformation, cracking, burning, blackening, or oxidation and rust at the female plug 2's insertion end, thereby providing early warning and maintenance before potential faults cause accidents or affect emergency use, greatly improving the socket's safety and emergency reliability. Simultaneously, this design avoids wear and tear on the hinge or snap-fit ​​structure caused by frequent opening and closing of the protective cover 3, extending the service life of the protective cover 3 and reducing the complexity of maintenance work.

[0036] Example 2:

[0037] This application discloses a quick-connect socket with an internally visible protective housing. (See reference...) Figure 4 and Figure 5 The difference between Embodiment 2 and Embodiment 1 is that the protective housing 3 is further provided with a wiping mechanism 5 for wiping the transparent lens 4. The wiping mechanism 5 includes a movable plate 51 on the protective housing 3 and a wiping strip 52 fixed on the movable plate 51. A drive handle 511 is fixed to the side of the movable plate 51 opposite to the wiping strip 52. Two guide rails 32 are fixed on the protective housing 3 to guide the movable plate 51 in a sliding manner, respectively located at both ends of the movable plate 51. When the movable plate 51 moves relative to the protective housing 3, it can drive the wiping strip 52 to wipe the outer surface of the transparent lens 4. Thus, when the outer surface of the transparent lens 4 is affected by dust, moisture, or water stains, the user does not need to find additional cleaning tools and can directly use the wiping mechanism to wipe it, ensuring that the field of view remains clear, maintaining the effectiveness and reliability of the internal vision function, and also making maintenance work more integrated and convenient.

[0038] Reference Figure 4 and Figure 5 Two guide rails 32 are each fixed with a baffle 321 at one end and a groove opening 322 for the movable plate 51 to be inserted at the other end. Each guide rail 32 is also provided with a baffle 6 for blocking the groove opening 322. In this embodiment, the baffle 321 is integrally formed with the guide rail 32 to ensure that one end of the groove opening 322 is closed. In this way, the guide rail 32 provides guidance for the sliding of the movable plate 51, ensuring that its movement trajectory is straight, so that the wiping strip 52 can fully cover the lens surface. The baffle 321 and the baffle 6 work together to reliably restrict the movable plate 51 within the guide rail 32, preventing it from accidentally falling out of the guide rail 32 during normal use or when subjected to vibration, ensuring the stability and service life of the wiping mechanism 5, and avoiding malfunctions caused by parts falling off.

[0039] Reference Figure 6 and Figure 7 The barrier component 6 includes an integrally formed plug 61 and plug head 62. A guide rail 32 has a socket 323 for inserting the plug 61. The end of the plug 61 furthest from the plug head 62 extends into the rail groove opening 322. A magnetic ring 324 is embedded in the guide rail 32, and the magnetic ring 324 is coaxially arranged with the socket 323. A first magnetic plate 621 is fixed to the end of the plug head 62 near the plug 61. Thus, the cooperation between the magnetic ring 324 and the first magnetic plate 621 allows the barrier component 6 to generate magnetic attraction after insertion and positioning, preventing it from loosening or falling off due to vibration or other external forces, ensuring the durable and reliable function of the barrier. At the same time, this magnetic fixing method eliminates the need for threads, making the installation and removal of the barrier component 6 very simple and facilitating later maintenance or replacement of the movable plate 51.

[0040] Reference Figure 7 The end of the bolt head 62 opposite to the plug 61 is fixed with a second magnetic sheet 622. In this way, after the plug 61 of the barrier 6 is pulled out of the socket 323, it can be flipped over and the second magnetic sheet 622 can be magnetically attracted to the magnetic ring 324, thereby reducing the possibility of the barrier 6 being lost during later maintenance.

[0041] Reference Figure 4 and Figure 8 The side of the movable plate 51 facing away from the transparent lens 4 is the outer plate surface. Guide cut surfaces 512 are provided at both ends of the outer plate surface near the stop 321. Chamfers 513 are provided at both ends of the movable plate 51 near the stop 321. Both guide cut surfaces 512 and chamfers 513 serve a guiding function. When the movable plate 51 is installed into the guide rail 32, these beveled structures can more easily guide the two ends of the movable plate 51 to accurately align with the rail groove opening 322. Especially when there is a slight alignment deviation, the position can be automatically corrected by the component force generated by the beveled contact, achieving smooth insertion. This simplifies the installation process, reduces assembly difficulty, and minimizes damage to parts that may be caused by forced installation.

[0042] Reference Figure 4 and Figure 8 The movable plate 51 has an opening for a mounting groove 514 on the side near the transparent lens 4. The wiping strip 52 is fixed to the bottom wall of the mounting groove 514 by Velcro 53. When the wiping strip 52 needs to be replaced due to wear or dirt from long-term use, the user only needs to tear off the old strip and attach the new strip. The operation is simple and quick, without the need to replace the entire movable plate 51, thereby reducing maintenance costs and replacement time. In addition, the Velcro 53 has a certain degree of adaptability, which can ensure that the wiping strip 52 maintains good contact with the lens surface and ensures cleaning effect.

[0043] The implementation principle of the quick-connect socket with a protective cover that allows internal viewing in Embodiment 2 of this application is as follows: The socket integrates the cleaning function into the protective cover 3 by setting a dedicated wiping mechanism 5. By pushing or pulling the drive handle 511, the user can drive the wiping strip 52 on the movable plate 51 to wipe the outer surface of the transparent lens 4, thereby conveniently removing accumulated dust, moisture or water stains, ensuring the long-lasting clarity of the transparent lens 4 and the reliability of the internal viewing effect, effectively overcoming the problem of observation failure caused by lens contamination.

[0044] Based on this, the movable plate 51 slides into the guide rail 32 on the protective cover 3 through the guide structures at both ends. It is further limited by the fixed stop 321 at one end of the guide rail 32 and the stop 6 at the other end, forming a stable system that ensures smooth movement and prevents accidental detachment. This not only guarantees the effectiveness and repeatability of the wiping action but also makes the entire wiping mechanism 5 robust and durable. Furthermore, the wiping strip 52 is connected to the movable plate 51 via Velcro 53, becoming an independently replaceable consumable. This design minimizes long-term maintenance costs and greatly improves the product's economy and sustainability.

[0045] Therefore, this embodiment 2 not only realizes the core function of "internal visibility" in embodiment 1, but also ensures the effectiveness of this function throughout its entire life cycle through an integrated cleaning solution that is extremely convenient from operation to maintenance, thereby improving the overall practicality and user experience of the socket.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-connect socket with an internally visible protective cover, comprising a fixed panel (1) and a female plug (2), wherein the fixed panel (1) is provided with a through hole (11) for the plug end of the female plug (2) to pass through, and a protective cover (3) is provided on the side of the fixed panel (1) near the plug end of the female plug (2), characterized in that: The protective cover (3) is provided with an observation hole (31), which is located directly opposite the insertion end of the female plug (2). A transparent lens (4) is detachably fixed in the observation hole (31).

2. The quick-connect socket with an internally visible protective cover according to claim 1, characterized in that: The observation hole (31) has a snap-fit ​​groove (311) on its wall, and the transparent lens (4) has a snap-fit ​​flange (41) on its periphery that is adapted to the snap-fit ​​groove (311).

3. The quick-connect socket with an internally visible protective cover according to claim 2, characterized in that: The snap-fit ​​flange (41) has a guide surface (411) on the side near the female plug (2).

4. The quick-connect socket with an internally visible protective cover according to claim 1, characterized in that: The transparent lens (4) is made of at least one of explosion-proof glass, flame-retardant transparent resin and flame-retardant transparent plastic.

5. A quick-connect socket with an internally visible protective housing according to claim 1, characterized in that: The protective cover (3) is also provided with a wiping mechanism (5) for wiping the transparent lens (4).

6. A quick-connect socket with an internally visible protective housing according to claim 5, characterized in that: The wiping mechanism (5) includes a movable plate (51) disposed on the protective cover (3) and a wiping strip (52) disposed on the movable plate (51). The movable plate (51) is configured to move relative to the protective cover (3) so that the wiping strip (52) wipes the outer surface of the transparent lens (4).

7. A quick-connect socket with an internally visible protective housing according to claim 6, characterized in that: The protective cover (3) is provided with guide rails (32) for sliding and guiding the movable plate (51). There are two guide rails (32) and they are respectively located at both ends of the movable plate (51).

8. A quick-connect socket with an internally visible protective housing according to claim 7, characterized in that: The two guide rails (32) are fixed with a baffle (321) at the same end, and the other end is provided with a rail groove opening (322) for the movable plate (51) to be inserted. Each guide rail (32) is also provided with a baffle (6) for blocking the rail groove opening (322).

9. A quick-connect socket with an internally visible protective housing according to claim 8, characterized in that: The barrier (6) includes an integrally formed plug (61) and plug head (62). The guide rail (32) is provided with a socket (323) for the plug (61) to be inserted. The end of the plug (61) away from the plug head (62) extends into the rail groove opening (322). A magnetic ring (324) is embedded in the guide rail (32). The magnetic ring (324) is coaxially arranged with the socket (323). The end of the plug head (62) near the plug (61) is provided with a first magnetic plate (621).

10. A quick-connect socket with an internally visible protective housing according to claim 6, characterized in that: The movable plate (51) has a mounting groove (514) on the side near the transparent lens (4), and the wiping strip (52) is fixed to the bottom wall of the mounting groove (514) by Velcro (53).