Anti-dust type multi-core plug-in assembly structure
By introducing a locking and limiting structure with elastic blocks and removable dust covers into the multi-core plug, the problems of plug loosening and disengagement and dust prevention are solved, thereby improving the stability and protection performance of the plug-in connection and ensuring the long-term reliability and ease of maintenance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI JIEXUN OPTOELECTRONICS TECH
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-29
AI Technical Summary
Existing multi-core plug-in modules are prone to loosening and tripping under long-term operation, vibration, or frequent plugging and unplugging, and lack an effective dustproof structure, resulting in unstable signal transmission and degraded electrical performance.
A multi-core plug-in combination structure with anti-disengagement and dustproof features is designed. By setting elastic blocks and clamping wave grooves on both sides of the socket housing and equipping it with a removable dustproof cover, stable limiting and closed protection are achieved by using clamping limit blocks and positioning structures.
It effectively prevents the plug and socket from loosening and disengaging, improves the stability and dustproof performance of the connection, reduces the failure rate, extends the service life, and improves the reliability of equipment operation and maintenance efficiency.
Smart Images

Figure CN224305055U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connector technology, specifically a multi-core plug-in combination structure with anti-disengagement and dustproof features. Background Technology
[0002] Multi-core inserts are widely used in automation equipment, industrial control systems, and color sorters. As a crucial component for signal or power transmission, their insertion stability and protection performance directly affect the reliability of equipment operation and maintenance efficiency. With increasing demands for continuous operation and environmental adaptability, the structural design and ease of use of ferrule assemblies urgently need optimization.
[0003] In existing technologies, multi-core connectors generally use a direct plug-and-socket connection for electrical connection. However, in long-term operation or applications involving vibration and frequent plugging / unplugging, plug loosening or accidental disengagement often occurs, affecting the stability of signal transmission. Furthermore, most multi-core connectors lack reliable dustproof structures, making the connection points susceptible to dust, moisture, and other impurities, leading to electrical performance degradation, poor contact, or even short circuits, posing risks to equipment operation. Additionally, while some structures possess basic mechanical locking designs, they lack precise limiting and protection mechanisms, failing to create a stable and sealed protective environment when plugged in. Utility Model Content
[0004] The purpose of this utility model embodiment is to provide an anti-disengagement and dustproof multi-core plug-in combination structure, which aims to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A multi-core plug assembly structure with anti-disengagement and dustproof features includes a plug housing and a socket housing on the side of the plug housing. The surface of the socket housing is provided with socket pins. A first dustproof cover and a second dustproof cover are provided on the outer sides of the socket housing and the plug housing, and the first dustproof cover and the second dustproof cover are detachably connected together.
[0007] Both sides of the socket housing are provided with elastic blocks, and the surface of the elastic blocks is provided with clamping wave grooves. Both sides of the inside of the second dust cover are provided with clamping limit blocks.
[0008] Furthermore, the shape of the clamping limiting block is adapted to the shape of the clamping wave groove.
[0009] Furthermore, positioning grooves are provided on both ends of the socket housing, and a first positioning block is provided at one end of both the first dust cover and the second dust cover, and the shape of the first positioning block is adapted to the shape of the plug housing.
[0010] Furthermore, the surface of the first positioning block is provided with a plurality of positioning openings, and the interior of the positioning groove is provided with a plurality of second positioning blocks. The shape of the second positioning blocks is adapted to the shape of the positioning openings, and the position of the second positioning blocks corresponds to the position of the positioning openings.
[0011] Furthermore, the first dust cover is provided with assembly hooks on both sides, and the second dust cover is provided with assembly slots on both sides, with the assembly hooks and assembly slots having shapes that are compatible.
[0012] Furthermore, the assembly hook is made of an elastic material.
[0013] The present invention provides a multi-core plug-in assembly structure for anti-disengagement and dustproof design, which has the following beneficial effects:
[0014] By incorporating elastic blocks and locking corrugated grooves on both sides of the socket housing, and a matching locking limit block inside the second dust cover, a stable locking mechanism is achieved between the dust cover and the plug assembly, effectively preventing loosening or disengagement of the plug and socket during use. The first and second dust covers feature a detachable connection structure, forming a closed enclosure that significantly improves overall dustproof and protective performance, ensuring long-term reliable contact between the socket pins and terminal wires, reducing the failure rate, and extending service life. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a multi-core plug-in combination structure that is anti-disengagement and dustproof.
[0016] In the diagram: 1. First dust cover; 2. Second dust cover; 3. Assembly hook; 4. Clamping wave groove; 5. Assembly slot; 6. Elastic block; 7. Socket pin; 8. Socket housing; 9. Plug housing; 10. First positioning block; 11. Second positioning block; 12. Positioning opening; 13. Positioning groove. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0018] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0019] like Figure 1As shown in the figure, the present invention provides a multi-core plug assembly structure with anti-disengagement and dustproof features, including a plug housing 9, and a socket housing 8 is provided on the side of the plug housing 9. A socket pin 7 is provided on the surface of the socket housing 8. A first dust cover 1 and a second dust cover 2 are provided on the outer sides of the socket housing 8 and the plug housing 9, and the first dust cover 1 and the second dust cover 2 are detachably connected together.
[0020] Both sides of the socket housing 8 are provided with elastic blocks 6, and the surface of the elastic blocks 6 is provided with clamping wave grooves 4. Both sides of the inside of the second dust cover 2 are provided with clamping limiting blocks. The shape of the clamping limiting blocks is adapted to the shape of the clamping wave grooves 4.
[0021] In one embodiment of this utility model, after the plug housing 9 and the socket housing 8 are effectively connected, the elastic blocks 6 disposed on both sides of the socket housing 8 can be inserted into the internal structure of the second dust cover 2 with the assistance of structural deformation, so that the locking wave groove 4 on the elastic block 6 precisely matches the locking limiting block disposed on the inner side of the second dust cover 2. The shape of the locking limiting block is adapted to the waveform structure of the locking wave groove 4, and a reliable positioning and locking effect is achieved through shape fitting during the insertion process, thereby stably limiting the socket housing 8 and the plug housing 9 between the first dust cover 1 and the second dust cover 2.
[0022] With the cooperation of this limiting structure, on the one hand, it can effectively prevent the plug housing 9 and the socket housing 8 from loosening or disengaging due to vibration, external force or assembly stress during long-term use; on the other hand, by using the first dust cover 1 and the second dust cover 2 to install and cover them in a detachable upper and lower snap-fit manner, the entire plug-in assembly structure forms a closed protection, effectively blocking the intrusion of external dust, moisture and other pollutants, and ensuring that the electrical connection between the socket pin 7 and the plug terminal is in a clean and safe environment for a long time.
[0023] Furthermore, the first dust cover 1 and the second dust cover 2 not only possess structural sealing but also offer excellent ease of operation. Users can quickly install and remove the dust covers without altering the installation positions of the plug housing 9 and the socket housing 8, facilitating equipment maintenance and plug replacement. The overall structure enhances the reliability of the plug in the color sorter spray valve system, significantly reducing the failure rate caused by plug disengagement or poor contact, and further improving the equipment's operational stability and efficiency.
[0024] In this embodiment, positioning grooves 13 are provided on both ends of the socket housing 8, and a first positioning block 10 is provided on one end of the first dust cover 1 and the second dust cover 2, and the shape of the first positioning block 10 is adapted to the shape of the plug housing 9.
[0025] By setting a positioning groove 13 in the socket housing 8 and setting a corresponding first positioning block 10 at one end of the dust cover, the dust cover and plug assembly can be accurately positioned when installing the first dust cover 1 and the second dust cover 2.
[0026] This structure ensures a clear installation direction and position for the dust cover when it is installed with the socket and plug housings, preventing displacement or misalignment during use. This guarantees complete coverage of the insertion area, effectively improving dustproof performance and structural stability. Simultaneously, the first positioning block 10 is shaped to match the plug housing 9, resulting in a tighter contact between the dust cover and the plug end. This enhances the overall consistency and sealing of the coverage, preventing the plug housing from shifting or slipping due to external forces, and further strengthening the anti-interference capability of the plug assembly structure.
[0027] Through the above structural design, while realizing the electrical connection function of the plug-in, the dust cover can provide a more reliable protective positioning function during use, providing a structurally stable, standardized, and dust-proof component foundation for the long-term operation of plug-in components in equipment such as color sorters.
[0028] In this embodiment, the surface of the first positioning block 10 is provided with a plurality of positioning openings 12, and the interior of the positioning groove 13 is provided with a plurality of second positioning blocks 11. The shape of the second positioning block 11 is adapted to the shape of the positioning opening 12, and the position of the second positioning block 11 corresponds to the position of the positioning opening 12.
[0029] By setting multiple positioning openings 12 and corresponding second positioning blocks 11, and matching them in structure and position, multi-point positioning can be achieved during the installation of the first dust cover 1 and the second dust cover 2, further enhancing the stable connection between the dust cover and the socket housing 8.
[0030] The above-mentioned structural design not only enhances the structural resistance to displacement after the dust cover is installed, but also effectively prevents it from loosening or falling off when subjected to external forces or equipment vibration, ensuring continuous and reliable protection. Furthermore, the insertion relationship between the first positioning block 10 and the second positioning block 11 is a structural limiting fit, which maintains the overall stability and protective integrity of the plug-in assembly structure even during long-term continuous operation or frequent maintenance of the color sorter.
[0031] Furthermore, the correspondence between the multiple positioning openings 12 and the second positioning block 11 is also fault-tolerant. That is, during actual assembly operations, even if there are certain installation angle deviations or assembly errors, the dust cover can be automatically guided into accurate position by the guiding effect of this structure, improving assembly efficiency and consistency. This structural matching design not only optimizes the dustproof and anti-detachment performance of the plug-in, but also reduces the impact of human error on the stability of the structural connection, providing a more reliable basis for the maintenance and replacement of the plug-in.
[0032] In this embodiment, the first dust cover 1 has assembly hooks 3 on both sides, and the second dust cover 2 has assembly slots 5 on both sides. The assembly hooks 3 and the assembly slots 5 are adapted to each other. The assembly hooks 3 are made of elastic material.
[0033] By introducing an assembly hook 3 and an assembly slot 5 into the dust cover structure, the first dust cover 1 and the second dust cover 2 can be quickly locked together, ensuring the stable closed state of the overall dust cover structure.
[0034] The aforementioned structure features excellent self-locking performance. When the hook 3 is inserted into the slot 5, it is guided in through elastic deformation and automatically springs back into the slot after insertion, achieving a secure locking mechanism and preventing the dust cover from loosening or cracking due to vibration, pressure, or other factors during equipment operation. Because the assembly hook 3 is made of elastic material, the entire connection structure possesses sufficient locking force while also exhibiting good durability and reusability, allowing for multiple opening and closing of the dust cover without damaging the connecting components.
[0035] Furthermore, the assembly hook 3 and assembly slot 5 offer excellent assembly efficiency. In practice, users can install the dust cover with simple pressing and snapping operations, without the need for additional fasteners or tools, effectively improving the ease of assembly and maintenance flexibility of the plug-in assembly structure. This snap-fit connection mechanism not only enhances the sealing and protective integrity of the plug-in structure but also provides a quick and reliable opening method for subsequent plug-in replacement or equipment maintenance, thereby further reducing maintenance costs and extending the equipment's service life.
[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-core plug assembly structure with anti-disengagement and dustproof features, comprising a plug housing (9), and a socket housing (8) provided on the side of the plug housing (9), wherein socket pins (7) are provided on the surface of the socket housing (8), characterized in that, The socket housing (8) and plug housing (9) are provided with a first dust cover (1) and a second dust cover (2) on their outer sides, and the first dust cover (1) and the second dust cover (2) are detachably connected together; Both sides of the socket housing (8) are provided with elastic blocks (6), and the surface of the elastic blocks (6) is provided with clamping wave grooves (4). Both sides of the interior of the second dust cover (2) are provided with clamping limit blocks.
2. The anti-disengagement and dustproof multi-core plug-in assembly structure according to claim 1, characterized in that, The shape of the clamping limit block is adapted to the shape of the clamping wave groove (4).
3. The anti-disengagement and dustproof multi-core plug-in assembly structure according to claim 1, characterized in that, The socket housing (8) has positioning grooves (13) on both ends of its surface. The first dust cover (1) and the second dust cover (2) are each provided with a first positioning block (10), and the shape of the first positioning block (10) is adapted to the shape of the plug housing (9).
4. The anti-disengagement and dustproof multi-core plug-in assembly structure according to claim 3, characterized in that, The surface of the first positioning block (10) is provided with a plurality of positioning openings (12), and the interior of the positioning groove (13) is provided with a plurality of second positioning blocks (11). The shape of the second positioning block (11) is adapted to the shape of the positioning opening (12), and the position of the second positioning block (11) corresponds to the position of the positioning opening (12).
5. The anti-disengagement and dustproof multi-core plug-in assembly structure according to claim 1, characterized in that, The first dust cover (1) is provided with assembly hooks (3) on both sides, and the second dust cover (2) is provided with assembly slots (5) on both sides. The shape of the assembly hooks (3) and the assembly slots (5) are adapted to each other.
6. The anti-disengagement and dustproof multi-core plug-in assembly structure according to claim 5, characterized in that, The assembly hook (3) is made of elastic material.