Fool-proof connector

Abstract

The utility model discloses a fool-proof connector. The fool-proof connector comprises a plug, a socket and a fool-proof assembly located between the plug and the socket. A first fool-proof structure is formed by adopting positioning grooves which are different in number and are arranged in a staggered manner on two opposite surfaces of a plug and matching with positioning convex ribs which are correspondingly arranged in a staggered manner on the inner wall of a socket, and a second fool-proof structure is formed by arranging positioning fillets on two adjacent edges of the plug and the socket and arranging positioning inclined surfaces on the other two edges, so that a dual fool-proof mechanism is constructed. The first fool-proof structure provides accurate position guiding and multi-point positioning through one-to-one corresponding dislocation matching of the positioning grooves and the positioning convex ribs, so that the plugging deviation is avoided; and the second fool-proof structure provides visual direction identification through special cooperation of a positioning fillet and a positioning inclined plane, and an obvious resistance sense can be generated when misoperation occurs, so that device damage caused by forced insertion is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric connector, especially to a foolproof connector. BACKGROUND

[0002] As an indispensable connecting component in electronic equipment, the connector is widely used in various electronic products. The connector in the prior art usually adopts the structure of plug and socket cooperation, and is provided with a locking mechanism to ensure the stability of the connection.

[0003] The common connector on the market generally adopts the single-side buckling locking mode, and this structure causes the need to press the lock buckle and pull out the plug at the same time when unlocking, which is not convenient to operate, especially in the case of limited space, it is difficult to realize one-handed operation, which brings inconvenience to use. In addition, most connectors only rely on a simple single foolproof structure, such as a single boss or a single positioning groove, which is easy to wear out due to long-term use, resulting in failure of the foolproof function. In addition, due to the too simple foolproof structure, the problem of forcibly inserting and damaging the connector may still occur during plugging. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a foolproof connector which is reliable, convenient to operate and accurate in positioning.

[0005] The utility model solves the technical problems by adopting the following technical scheme:

[0006] A foolproof connector, comprising: a plug and a socket, the plug being detachably plugged into the socket; a foolproof assembly, the foolproof assembly comprising a first foolproof structure and a second foolproof structure; the first foolproof structure comprising positioning grooves arranged on two opposite surfaces of the plug and positioning ribs arranged on the inner wall of the socket, one surface being provided with a first number of positioning grooves and the other surface being provided with a second number of positioning grooves, the first number being different from the second number, the positioning grooves being arranged in a staggered manner on the respective surfaces, and the positioning ribs being correspondingly arranged in a staggered manner and matched with the positioning grooves one by one; the second foolproof structure comprising positioning fillets and positioning bevels, the positioning fillets being arranged on the adjacent two sides of the plug and the socket, and the positioning bevels being arranged on the other two sides of the plug and the socket.

[0007] Further, the cross section of the positioning rib is adapted to the cross section of the positioning groove.

[0008] Further, the cross section of the positioning rib is trapezoidal, rectangular or triangular.

[0009] Further, the locking assembly comprises locking protrusions arranged on both sides of the socket and a locking piece arranged on the plug and used for locking with the locking protrusions.

[0010] Further, the locking protrusions comprise an insertion guide surface which is a slope towards the socket and a locking surface which is a plane away from the socket and perpendicular to the plug, and the locking surface is in abutting fit with the locking hole.

[0011] Further, the locking piece comprises a locking hole and a pressing surface arranged at both ends of a pressing column respectively, the locking hole is used for locking with the locking protrusions, and the pressing surface is used for releasing the locking of the locking hole and the locking protrusions.

[0012] Further, the pressing surface is provided with anti-skid lines.

[0013] Further, the chamfer radius of the positioning round corner is greater than the projection length of the positioning slope in the corresponding direction, so that when the plug is inserted in the forward direction, the positioning round corner is matched with the corresponding positioning round corner, and the positioning slope is matched with the corresponding positioning slope; when the plug is inserted in the reverse direction, the positioning round corner interferes with the corresponding positioning slope.

[0014] Further, the first number is one, and the second number is two.

[0015] Further, the outer surface of the socket is provided with an identification protrusion arranged on one side with more positioning convex ribs or one side with less positioning convex ribs.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model discloses a foolproof connector, through the positioning groove of different number and staggered arrangement on two opposite surfaces of the plug, cooperate the positioning convex rib of corresponding staggered of socket inner wall, form first foolproof structure, set up positioning round corner on two adjacent sides of the plug and socket and positioning slope on the other two sides to form second foolproof structure, build double foolproof mechanism. Make the connector only complete the insertion in the only correct direction, wherein the first foolproof structure provides accurate position guide and multi-point positioning through the one-to-one corresponding staggered fit of positioning groove and positioning convex rib, avoids the insertion deviation, and the second foolproof structure provides intuitive direction identification through the special fit of positioning round corner and positioning slope, when the misoperation occurs, obvious resistance feeling is produced, thereby effectively prevent the damage of device caused by forcible insertion. The synergistic effect of the double foolproof not only improves the foolproof reliability and service life of the connector, but also makes the plug and pull operation more convenient and intuitive, and greatly improves the practicability of the connector. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model is further illustrated below in combination with the drawings and embodiments.

[0019] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is the cross section structure schematic diagram of the utility model;

[0021] Figure 3 It is the split structure schematic diagram of the utility model;

[0022] Figure 4 It is the socket structure schematic diagram of the utility model;

[0023] Figure 5 It is the plug structure schematic diagram-1 of the utility model;

[0024] Figure 6 It is the plug structure schematic diagram-2 of the utility model.

[0025] Among them,

[0026] 100, plug;

[0027] 200, socket; 210, identification protrusion;

[0028] 300, foolproof assembly;

[0029] 310, first foolproof structure; 311, positioning groove; 312, positioning convex rib;

[0030] 320, second foolproof structure; 321, positioning fillet; 322, positioning inclined surface;

[0031] 400, locking assembly;

[0032] 410, locking protrusion; 411, guide surface; 412, locking surface;

[0033] 420, lock piece; 421, locking hole; 422, pressing column; 423, pressing surface; 4231, anti-skid line. DETAILED DESCRIPTION

[0034] The concept, specific structure and generated technical effects of the present application will be described clearly and completely in combination with the embodiments and drawings, so as to fully understand the purposes, features and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application. In addition, all the connection / connection relationships involved in the patent do not mean that the components are directly connected, but means that the better connection structure can be composed by adding or reducing the connection auxiliary parts according to the specific implementation situation. The various technical features in the present application can be combined interactively without mutual contradiction and conflict.

[0035] Referring to Figures 1-3 A foolproof connector includes a plug 100, a socket 200 and a foolproof assembly 300 arranged between the plug 100 and the socket 200. By arranging the foolproof assembly 300, the plug 100 is detachably plugged into the socket 200.

[0036] The foolproof assembly 300 includes a first foolproof structure 310 and a second foolproof structure 320.

[0037] Referring to Figure 3 The first foolproof structure 310 includes positioning grooves 311 arranged on two opposite surfaces of the plug 100 and positioning ribs 312 arranged on the inner wall of the socket 200. One surface is provided with a first number of positioning grooves 311, and the other surface is provided with a second number of positioning grooves 311, the first number and the second number are different, the positioning grooves 311 are arranged in a staggered manner on the respective surfaces, and the positioning ribs 312 are correspondingly arranged in a staggered manner. For example, 2 positioning grooves 311 can be arranged on one surface, and 3 positioning grooves 311 can be arranged on the opposite surface. These positioning grooves 311 are arranged in a staggered manner on the respective surfaces, and the inner wall of the socket 200 is correspondingly provided with positioning ribs 312 corresponding to the positioning grooves 311 and arranged in a staggered manner. The asymmetric staggered design ensures that the plug 100 can only be inserted into the socket 200 in the correct direction.

[0038] Referring to Figures 3-6The second fool-proof structure 320 includes positioning fillets 321 and positioning bevels 322. The positioning fillets 321 are arranged on two adjacent sides of the plug 100 and the socket 200, and the positioning bevels 322 are arranged on the other two sides of the plug 100 and the socket 200. When the plug 100 is correctly inserted, the positioning fillets 321 of the plug 100 can smoothly fit the positioning fillets 321 of the socket 200, and the positioning bevels 322 of the plug 100 can also accurately butt the positioning bevels 322 of the socket 200. However, when an attempt is made to insert the plug 100 in reverse, the positioning fillets 321 will interfere with the positioning bevels 322, thereby preventing incorrect insertion.

[0039] The first fool-proof structure 310 and the second fool-proof structure 320 form a double fool-proof mechanism. In practical applications, such as signal connection of electronic devices, this double fool-proof structure design can effectively prevent damage to the connector caused by incorrect operation of the operator, and at the same time, through tactile feedback, the operator can intuitively determine whether the insertion direction is correct.

[0040] In some embodiments, the first number is at least one, and the second number is at least one, but the numbers are different and offset from each other, so that the positioning grooves 311 are arranged in an offset manner on the respective surfaces, and the positioning ribs 312 on the inner wall of the socket 200 that cooperate with the positioning grooves 311 must also be arranged in a corresponding offset manner. Therefore, during the connection of the electronic device, due to the different number and offset arrangement of the positioning grooves 311, the plug 100 can only be connected to the socket 200 in a unique correct direction.

[0041] In some embodiments, the cross section of the positioning rib 312 is adapted to the cross section of the positioning groove 311, that is, the cooperation between the positioning rib 312 and the positioning groove 311 is achieved by the cross sections of the two being adapted to each other. Specifically, the cross section of the positioning rib 312 can be selected from any one of trapezoidal, rectangular, or triangular shapes, and the positioning groove 311 adopts the same shape that perfectly matches it. For example, when a trapezoidal cross section is selected, the positioning rib 312 can adopt a trapezoidal structure with a wide upper part and a narrow lower part, and correspondingly, the positioning groove 311 adopts a trapezoidal groove structure that perfectly matches it. This design not only ensures accurate positioning during insertion, but also prevents shaking during insertion, thereby improving the stability of the connection. In actual electronic device connection applications, this precise matching of cross sections can further enhance the fool-proof effect, because any forced insertion with mismatched cross sections will be prevented, thereby avoiding damage to the connector.

[0042] In some embodiments, the chamfer radius of the positioning round corner 321 is greater than the projection length of the positioning bevel 322 in the corresponding direction, so that when the plug 100 is inserted in the correct direction, the positioning round corner 321 cooperates with the corresponding positioning round corner 321, and the positioning bevel 322 cooperates with the corresponding positioning bevel 322; when inserted in the reverse direction, the positioning round corner 321 interferes with the positioning bevel 322. For example, when the chamfer radius is 10 mm, it is ensured that the projection length of the positioning bevel 322 is less than 10 mm, so that when inserted in the correct direction, the positioning round corner 321 can smoothly cooperate with the corresponding positioning round corner 321, and the positioning bevel 322 can accurately butt joint with the corresponding positioning bevel 322, and when attempting to insert in the reverse direction, the positioning round corner 321 will interfere with the positioning bevel 322 due to the radius of the positioning round corner 321 being greater than the projection length of the positioning bevel 322, thereby effectively preventing incorrect plugging during the connection of the electronic device.

[0043] In some embodiments, in order to enable the operator to more intuitively identify the correct plugging direction, a marking protrusion 210 is provided on the outer surface of the socket 200, with reference to Figure 1 The marking protrusion 210 can be selectively provided on the side with more positioning ribs 312 or the side with fewer positioning ribs 312, that is, if one side has two positioning ribs 312 and the other side has only one positioning rib 312, the marking protrusion 210 can be provided on the side with two positioning ribs 312, so that when the operator connects the electronic device, the position of the marking protrusion 210 can be touched or visually observed to quickly determine the distribution of the positioning ribs 312 inside the socket 200, thereby accurately finding the correct insertion direction of the plug 100, improving the convenience and efficiency of the connector.

[0044] In the present foolproof connector, in order to ensure the stability and reliability after plugging, after completing the correct plugging of the foolproof assembly 300, a locking assembly 400 is designed to achieve firm locking, with reference to Figures 1-4 Specifically, locking protrusions 410 are provided on both sides of the socket 200, and a locking piece 420 is provided at the corresponding position on the plug 100, so that when the plug 100 is inserted into the socket 200 in the correct direction and the foolproof cooperation is completed, the locking piece 420 will be locked with the locking protrusions 410, thereby preventing the plug 100 from accidentally falling off or loosening during use. For example, in the actual application of the electronic device, when the connector is subjected to vibration or external force, this locking mechanism can ensure the stability of the connection, and only when the plug 100 needs to be pulled out, the locking state can be released by operating the locking piece 420 to achieve a controllable disassembly process.

[0045] Further, the locking protrusion 410 comprises an insertion guide surface 411 and a locking surface 412, the insertion guide surface 411 is a slope surface towards the socket 200, which can guide the smooth sliding of the locking piece 420 during the insertion process; the locking surface 412 is a plane away from the socket 200 and perpendicular to the plug 100, the locking surface 412 is in abutting fit with the locking hole 421. For example, when the plug 100 is inserted, the locking piece 420 will first slide along the slope surface of the insertion guide surface 411, and when fully inserted, the locking surface 412 will form a vertical abutment with the edge of the locking hole 421. This design not only facilitates the insertion operation during the connection process of the electronic device, but also ensures the stability after locking and prevents accidental falling.

[0046] Further, the locking piece 420 comprises a locking hole 421, a pressing column 422 and a pressing surface 423, the locking hole 421 and the pressing surface 423 are respectively arranged at both ends of the pressing column 422, forming a complete locking mechanism, the locking hole 421 is used for locking fit with the locking protrusion 410, and the pressing surface 423 is used for unlocking the locking hole 421 from the locking protrusion 410. When the plug 100 is inserted into the socket 200, the locking protrusion 410 will be in locking fit with the locking hole 421, achieving a reliable fixing effect; when the plug 100 needs to be pulled out, only the pressing surface 423 at the other end of the pressing column 422 needs to be pressed, so that the locking hole 421 is separated from the locking protrusion 410, thereby releasing the locking state. This design not only ensures the firmness of the connection, but also realizes the convenient disassembly operation, so that the use of the whole connector is more humanized and conforms to the ergonomic design.

[0047] Further, referring to Figure 4 The anti-skid lines 4231 are specially designed on the pressing surface 423, which can increase the friction between the pressing surface 423 and the fingers of the operator, prevent the fingers from slipping and cause operation failure, thereby ensuring that the unlocking operation of the connector is smoother and safer. Specifically, the anti-skid lines 4231 can adopt various practical line forms, such as uniformly distributed horizontal stripes, grid lines, herringbone lines or dot-shaped protrusions, etc.

[0048] The above is a specific description of the preferred embodiment of the utility model, but the utility model creation is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.

Claims

1. A foolproof connector, characterized in that, include: A plug and a socket, wherein the plug is detachably inserted into the socket; A foolproof component, comprising a first foolproof structure and a second foolproof structure; The first foolproof structure includes positioning grooves on two opposite surfaces of the plug and positioning ribs on the inner wall of the socket. One surface is provided with a first number of positioning grooves, and the other surface is provided with a second number of positioning grooves. The first number and the second number are different. The positioning grooves are staggered on their respective surfaces. The positioning ribs correspond to the positioning grooves one by one and are staggered accordingly. The second foolproof structure includes a positioning fillet and a positioning bevel. The positioning fillet is located on the two adjacent sides of the plug and the socket, and the positioning bevel is located on the other two sides of the plug and the socket.

2. The foolproof connector according to claim 1, characterized in that, The cross-section of the positioning rib is adapted to the cross-section of the positioning groove.

3. The foolproof connector according to claim 2, characterized in that, The cross-section of the positioning rib and the cross-section of the positioning groove are trapezoidal, rectangular, or triangular.

4. The foolproof connector according to claim 1, characterized in that, It also includes a locking assembly, the locking assembly comprising: Locking protrusions are provided on both sides of the socket; A locking element is provided on the plug, which is used to lock into the locking protrusion.

5. The foolproof connector according to claim 4, characterized in that, The locking element includes a locking hole, a pressure post, and a pressure surface. The locking hole and the pressure surface are respectively located at both ends of the pressure post. The locking hole is used to lock into the locking protrusion, and the pressure surface is used to release the locking hole from the locking protrusion.

6. The foolproof connector according to claim 5, characterized in that, The locking protrusion includes an insertion guide surface and a locking surface. The insertion guide surface is an inclined surface facing the socket, and the locking surface is a plane away from the socket and perpendicular to the plug. The locking surface abuts against the locking hole.

7. The foolproof connector according to claim 5, characterized in that, The pressing surface is provided with anti-slip texture.

8. The foolproof connector according to claim 1, characterized in that, The chamfer radius of the positioning fillet is greater than the projected length of the positioning bevel in the corresponding direction, so that when the plug is inserted in the forward direction, the positioning fillet engages with the corresponding positioning fillet, and the positioning bevel engages with the corresponding positioning bevel; when inserted in the reverse direction, the positioning fillet interferes with the corresponding positioning bevel.

9. The foolproof connector according to claim 1, characterized in that, The first quantity is one, and the second quantity is two.

10. The foolproof connector according to claim 1, characterized in that, The outer surface of the socket is provided with a marking protrusion, which is located on the side with more positioning ribs or the side with fewer positioning ribs.

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