A foolproof connector

By incorporating a mechanical interlocking structure with unequal mating rods and slots in the connector, the problem of equipment damage caused by mis-mating is solved, thereby improving the safety and reliability of the connection.

CN224582630UActive Publication Date: 2026-07-31ZHEJIANG XINRONG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG XINRONG ELECTRONICS CO LTD
Filing Date
2025-08-28
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing connectors are prone to misinsertion during insertion and removal due to visual fatigue or operational negligence, which can lead to bent or broken pins, or even serious malfunctions such as short circuits or circuit burnouts.

Method used

Design a foolproof connector by setting unequal mating rods and mating slots between the plug and the socket to form a mechanical interlocking structure, which can only achieve mating when the orientation and position are correct, thus preventing incorrect mating.

Benefits of technology

It effectively prevents mis-insertion, avoids equipment damage and signal transmission failure, and improves the security and reliability of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a foolproof connector, including a base and a socket. The base includes a fixed base plate and a plug. The plug has a left row of sockets and a right row of sockets, with a foolproof slot between the two rows of sockets. One end of the foolproof slot has at least two mating rods of unequal width arranged sequentially along the length of the slot. The socket has a receptacle hole for mating with the plug, and a foolproof plate for inserting the foolproof slot is located inside the receptacle hole. One end of the foolproof plate has a mating groove that matches the shape and width of the mating rods. This connector forms a foolproof structure through the precise matching of the mating rods and the mating groove, which can physically prevent incorrect plug orientation or insertion deviation, effectively avoiding equipment damage and signal transmission failure caused by misinsertion, and significantly improving connection security.
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Description

Technical Field

[0001] This utility model relates to the field of connector technology, and specifically to a foolproof connector. Background Technology

[0002] In many fields such as electronics, communications, and industrial control, connectors are key components for realizing circuit or signal connections, and the reliability and accuracy of their connections directly affect the normal operation of the entire equipment system. As various devices develop towards miniaturization and integration, the structure of connectors is becoming increasingly complex, the number of pins and sockets is constantly increasing, and connectors with different functions often have a high degree of similarity in appearance.

[0003] Against this backdrop, connector insertion and removal operations face the risk of misinsertion. When operators, due to visual fatigue, operational negligence, or other reasons during installation or maintenance, insert the plug into the socket in the wrong direction, or when the insertion position is deviated and some pins are misaligned with the socket, it can easily cause the internal pins of the connector to bend or break, or even lead to serious malfunctions such as short circuits or circuit burnout.

[0004] Therefore, developing a foolproof connector that can accurately identify the insertion direction and effectively prevent incorrect mating is of great significance for improving the safety and reliability of equipment connections. Utility Model Content

[0005] To address the shortcomings of the prior art, this utility model provides a foolproof connector.

[0006] The technical solution adopted in this utility model is: a foolproof connector, comprising: The base includes a fixed base plate and a plug on the fixed base plate. The plug has a left row of sockets and a right row of sockets. A foolproof slot is provided between the left row of sockets and the right row of sockets. At least two connecting rods are provided at one end of the foolproof slot. The connecting rods have different widths and are arranged sequentially along the length of the slot. The socket has a socket hole for connecting the plug, and a foolproof plate for inserting a foolproof slot is provided in the socket hole. One end of the foolproof plate has a mating groove that matches the shape of the connecting rod, and the width of the mating groove corresponds one-to-one with the width of the connecting rod.

[0007] Furthermore, the cross-section of the foolproof slot is rectangular, and rounded corners are provided on both sides of its opening.

[0008] Furthermore, there are three connecting rods, and the two sides of the connecting rods are rounded.

[0009] Furthermore, the width difference between the connecting rods is ≥0.3mm.

[0010] Furthermore, a connecting step is provided on one end of the socket that connects to the socket, and a slot is provided in the middle of the connecting step, and a connecting shaft is rotatably connected in the slot; The base is provided with a connecting post that can extend into the slot. The connecting post is provided with a connecting slot. The inner walls on both sides of the connecting slot are provided with limiting ridges. The cross-sectional shape of the limiting ridges is a semi-elliptical or semi-circular structure.

[0011] Furthermore, the fixed base plate has a rectangular structure with fixing holes at both ends.

[0012] The beneficial effects of this invention are as follows: By setting mating rods of unequal width arranged sequentially in the anti-misplacement slot of the base, and simultaneously setting mating grooves on the anti-misplacement plate of the socket that match the mating rods one by one, an effective anti-misplacement structure is formed. This design ensures that the mating rods can accurately insert into the corresponding mating grooves only when the direction and position of the plug and the socket are completely correct, thus achieving smooth insertion; if there is an incorrect direction or insertion deviation, the mating rods and mating grooves will not fit due to size mismatch, directly preventing incorrect insertion at the physical level, effectively avoiding equipment damage, signal transmission failures, and other problems caused by misinsertion, and significantly improving the safety of the connection.

[0013] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0014] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is an exploded view of the present invention.

[0017] Figure 3 This is a schematic diagram of the insert structure.

[0018] Figure 4 This is a top view of the base.

[0019] Figure 5 This is a structural diagram of the base.

[0020] Figure 1-5 In the middle: 1. Base; 2. Fixed base plate; 3. Plug; 4. Left row of sockets; 5. Right row of sockets; 6. Anti-foolproof slot; 7. Connecting rod; 8. Socket hole; 9. Anti-foolproof plate; 10. Connecting groove; 11. Connecting step; 12. Slot; 13. Connecting shaft; 14. Connecting column; 15. Connecting groove; 16. Limiting protrusion; 17. Fixing hole; 18. Insert sleeve. Detailed Implementation

[0021] 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.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] This utility model provides a foolproof connector.

[0024] In this embodiment, refer to Figure 1-5 The foolproof connector includes: The base 1 includes a fixed base plate 2 and a plug 3 on the fixed base plate 2. The plug 3 is provided with a left row of plug holes 4 and a right row of plug holes 5. A foolproof slot 6 is provided between the left row of plug holes 4 and the right row of plug holes 5. At least two connecting rods 7 are provided at one end of the foolproof slot 6. The widths of the connecting rods 7 are not equal and are arranged sequentially along the length of the slot. The plug sleeve 18 has a socket hole 8 for connecting the plug. The socket hole 8 has a foolproof plate 9 for inserting a foolproof slot. One end of the foolproof plate 9 has a docking groove 10 that matches the shape of the docking rod, and the width of the docking groove 10 corresponds one-to-one with the width of the docking rod.

[0025] The foolproof connector in the above technical solution consists of a base and a socket. The plug of the base has a left row of sockets, a right row of sockets, and a foolproof slot. The foolproof slot contains mating rods of varying widths arranged sequentially. The socket of the socket contains a foolproof plate with mating grooves that match the mating rods. By matching the dimensions of the mating rods and the mating grooves one-to-one, a mechanical interlocking structure is formed, and docking can only be achieved when the two are perfectly matched.

[0026] It physically prevents incorrect plug orientation or misalignment, precisely implements anti-misplugging function, avoids equipment damage and signal transmission failure caused by misplugging, ensures the accuracy and security of the connection, and provides a foundation for the stable operation of the equipment.

[0027] Specifically, the cross-section of the foolproof slot is rectangular, and its opening has rounded corners on both sides.

[0028] In this embodiment, the cross-section of the foolproof slot is rectangular, and rounded corners are provided on both sides of the opening. The rounded corners serve to buffer and guide the insertion of the foolproof plate, reducing friction and obstruction during insertion.

[0029] Specifically, there are three connecting rods, and the two sides of the connecting rods are rounded.

[0030] In this embodiment, three docking rods are provided, and both sides are rounded. The rounded corner design reduces the friction and collision between the docking rods and the docking groove.

[0031] Specifically, the width difference between the connecting rods is ≥0.3mm.

[0032] In this embodiment, the width difference between the docking rods is ≥0.3mm, ensuring that the different docking rods have obvious differences in size, so that operators or machinery can clearly distinguish the different docking rods during the docking process.

[0033] Specifically, a connecting step 11 is provided on one end of the socket that connects to the socket, and a slot 12 is provided in the middle of the connecting step 11, and a connecting shaft 13 is rotatably connected in the slot 12. The base is provided with a connecting post 14 that can extend into the slot. The connecting post 14 is provided with a connecting groove 15. The inner walls on both sides of the connecting groove 15 are provided with limiting ridges 16. The cross-sectional shape of the limiting ridges 16 is a semi-elliptical or semi-circular structure.

[0034] In this embodiment, the connecting step groove of the insert has a rotating connecting shaft, and the connecting post of the base can extend into the groove. The connecting groove has limiting protrusions on both sides with a semi-elliptical or semi-circular cross-section. The connecting shaft and the connecting groove cooperate to connect the insert and the base, and the limiting protrusions restrict the position of the connecting shaft, preventing the connection from becoming loose.

[0035] Specifically, the fixed base plate has a rectangular structure with fixing holes 17 at both ends.

[0036] In this embodiment, the base plate is rectangular with fixing holes at both ends. The rectangular structure facilitates the installation and positioning of the base, and the fixing holes allow the base to be secured to the equipment using screws or other fasteners, ensuring that the base will not move during use.

[0037] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A fool-proof connector characterized by include: The base includes a fixed base plate and a plug on the fixed base plate. The plug has a left row of sockets and a right row of sockets. A foolproof slot is provided between the left row of sockets and the right row of sockets. At least two connecting rods are provided at one end of the foolproof slot. The connecting rods have different widths and are arranged sequentially along the length of the slot. The socket has a socket hole for connecting the plug, and a foolproof plate for inserting a foolproof slot is provided in the socket hole. One end of the foolproof plate has a mating groove that matches the shape of the connecting rod, and the width of the mating groove corresponds one-to-one with the width of the connecting rod.

2. The fool-proof connector according to claim 1, characterized by: The cross-section of the foolproof slot is rectangular, and its opening has rounded corners on both sides.

3. The fool-proof connector of claim 1, wherein: The connecting rod consists of three rods, with rounded corners on both sides.

4. The foolproof connector according to claim 1, characterized in that: The width difference between the connecting rods is ≥0.3mm.

5. The foolproof connector according to claim 1, characterized in that: A connecting step is provided on one end of the socket that connects to the socket, and a slot is provided in the middle of the connecting step, and a connecting shaft is rotatably connected in the slot. The base is provided with a connecting post that can extend into the slot. The connecting post is provided with a connecting slot. The inner walls on both sides of the connecting slot are provided with limiting ridges. The cross-sectional shape of the limiting ridges is a semi-elliptical or semi-circular structure.

6. The foolproof connector according to claim 1, characterized in that: The fixed base plate has a rectangular structure with fixing holes at both ends.