Foolproof plug structure

Abstract

The present invention discloses a foolproof plug structure, comprising: a female plug, comprising a female terminal housing and a hook assembly disposed opposite each other, the hook assembly comprising a connected hook arm and a barbed hook, the barbed hook protruding from the hook arm toward the side facing away from the female terminal housing; and a male plug, comprising a male terminal housing and a hook box, the male terminal housing and the female terminal housing being plugged in relative to each other, the hook box being adapted to fit the barbed hook. Compared to existing structures, the structure of the present invention can achieve a strong visual foolproofing effect when the female and male plugs are plugged in, and facilitates the removal of the female and male plugs.

Description

Technical Field

[0001] The present invention relates to the field of lighting, and in particular to a fool-proof plug structure. Background Art

[0002] At present, most multi-wire DC plugs on the market adopt a symmetrical design, and the hooks also adopt symmetrical double hooks, resulting in the overall appearance being not very obvious in visual anti-foolproofing. It requires relying on subtle anti-foolproofing ribs for visual anti-foolproofing or operational anti-foolproofing. In addition, due to the failure of anti-foolproofing, the plug is often inserted upside down and the lamp cannot light up. At the same time, the hooks are also very difficult to remove, and even require the use of tools or the cooperation of two people to remove, which causes great trouble to users. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides an anti-mock plug structure, which can solve the problem of poor or ineffective anti-mock when the female plug is connected to the male plug, resulting in the lamp being unable to light up due to the plug being inserted upside down, or even difficult to disassemble.

[0004] The technical solution of the present invention provides a fool-proof plug structure, including: a female plug, the female plug including a female terminal shell and a hook assembly arranged oppositely, the hook assembly including a connected hook arm and a barbed hook, the barbed hook protruding from the hook arm toward the side facing away from the female terminal shell; a male plug, the male plug including a male terminal shell and a hook box separated from each other; the male terminal shell is plugged into the female terminal shell oppositely, and the hook box is adapted to the barbed hook.

[0005] Optionally, the hook assembly further includes a force-applying shoulder, the barbed hook is connected to the hook arm via the force-applying shoulder, and the force-applying shoulder is protruding toward the side of the hook arm away from the female terminal housing.

[0006] Optionally, a disassembly groove is provided on a side of the hook box facing away from the male terminal housing, and when the barbed hook is adapted to the hook box, the force-applying shoulder is located in the disassembly groove.

[0007] Optionally, an anti-slip portion is provided at one end of the barbed hook away from the force-applying shoulder, and the hook box has a side wall. After the male terminal shell and the female terminal shell are relatively plugged in, the anti-slip portion abuts against the side wall.

[0008] Optionally, the hook arm is provided with an avoidance groove, the avoidance groove includes a docking end and a connecting end that are opposite to each other, the avoidance groove passes through the hook arm along a third direction, the docking end is arranged toward the male plug, the barbed hook is connected to the hook arm at the docking end, and the barbed hook extends along the avoidance groove toward the connecting end.

[0009] Optionally, the hook assembly further includes a first guide portion and a second guide portion, and the hook arm, the first guide portion, the force-applying shoulder, the barbed hook, the second guide portion and the anti-slip portion are connected in sequence.

[0010] Optionally, a first matching portion is provided on a side of the female terminal shell close to the hook arm, and a second matching portion is provided on a side of the hook box close to the male terminal shell, and the first matching portion is adapted to the second matching portion.

[0011] Optionally, the first matching portion includes grooves arranged at intervals along a first direction, and the second matching portion includes ribs arranged at intervals along the first direction, and the ribs are used for snap-fitting connection with the grooves.

[0012] Optionally, the hook box is provided with an accommodating cavity, the accommodating cavity has a first height H along the third direction, and the barbed hook has a second height L along the third direction, satisfying: L≤H.

[0013] Optionally, the barbed hook has a first thickness P along the third direction, satisfying: L=2.5P.

[0014] Optionally, the disassembly groove has a depth G along the third direction, and the hook arm has a second thickness K along the third direction, satisfying: G=LK.

[0015] Optionally, the disassembly groove has a first length R along the second direction, satisfying: 7.5 mm ≤ R ≤ 10 mm.

[0016] Optionally, the cross-sections of the female terminal housing and the male terminal housing along the second direction are both D-shaped.

[0017] The beneficial effects of the present invention are:

[0018] In the foolproof plug structure provided by the technical solution of the present invention, a hook assembly and a female terminal shell are arranged relative to each other in the female plug. The hook assembly includes a connected hook arm and a barbed hook, and the barbed hook protrudes toward the side facing away from the female terminal shell. A hook box and a male terminal shell are provided in the male plug. The female terminal shell and the male terminal shell are plugged relative to each other, and the hook assembly is assembled using the hook box, so that the barbed hook can be snapped into the hook box to achieve the installation purpose. In addition, both the female terminal shell and the male terminal shell have an asymmetric structural design, which has a strong visual foolproofing effect. If the user makes an incorrect insertion without observation, even in a blind insertion situation, the male plug and the female plug will not be successfully plugged together because both the male terminal shell and the female terminal shell adopt an asymmetric structural design. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 1 is a schematic structural diagram of a female plug provided by an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle hook assembly;

[0022] Figure 3 is a schematic structural diagram of a male plug provided by an embodiment of the present invention;

[0023] Figure 4 It is a cross-sectional diagram of a female plug and a male plug;

[0024] Figure 5 This is a structural diagram of the female plug from another perspective;

[0025] Figure 6 A schematic diagram of the state process of the anti-mute plug structure during the insertion process;

[0026] Figure 7 This is a schematic diagram of the status process during the disassembly of the anti-fouling plug structure.

[0027] Figure markings: 100-female plug, 110-female terminal shell, 111-female terminal, 112-groove, 120-hook assembly, 121-hook arm, 122-force shoulder, 123-barbed hook, 124-anti-slip portion, 125-first guide portion, 126-second guide portion, 127-docking end, 128-connecting end, 129-avoidance groove, 130-first plate, 131-first anti-slip rib, 200-male plug, 210-male terminal shell, 220-hook box, 211-male terminal, 221-disassembly groove, 222-convex rib, 223-accommodation chamber, 224-side wall, 230-second plate, 231-second anti-slip rib. DETAILED DESCRIPTION

[0028] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments derived by persons skilled in the art without inventive effort are within the scope of protection of the present invention. Furthermore, it should be understood that the specific embodiments described herein are intended only to illustrate and explain the present invention and are not intended to limit the present invention. In the present invention, unless otherwise indicated, directional terms such as "upper" and "lower" generally refer to the upper and lower sides of the device in actual use or operation, specifically the directions in the drawings; whereas "inner" and "outer" refer to the outline of the device. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance or to implicitly specify the number of the technical features indicated. Therefore, features designated "first" or "second" may explicitly or implicitly include one or more of the designated features.

[0029] In one embodiment of the present invention, a foolproof plug structure is provided, referring to Figures 1 to 7 The foolproof plug structure includes a female plug 100 and a male plug 200.

[0030] like Figures 1 to 3 As shown, the female plug 100 includes a female terminal housing 110 and a hook assembly 120 arranged opposite to each other. The hook assembly 120 includes a connected hook arm 121 and a barbed hook 123. The barbed hook 123 protrudes from the hook arm 121 toward the side facing away from the female terminal housing 110. Figure 3 and Figure 4 As shown, the male plug 200 includes a male terminal housing 210 and a hook box 220. In the foolproof plug structure of the present application, the male plug 200 is plugged into the female plug 100, and the hook box 220 is used to assemble the barbed hook 123 of the hook assembly 120. In addition, the female terminal housing 110 and the male terminal housing 210 are both designed in a D-shaped asymmetrical structure.

[0031] The foolproof plug structure of the present application is provided with a hook assembly 120 and a female terminal shell 110 in the female plug 100. The hook assembly 120 includes a hook arm 121 and a barbed hook 123. A hook box 220 and a male terminal shell 210 are provided in the male plug 200. The female terminal shell 110 is connected to the male terminal shell 210, and the hook assembly 120 is assembled with the hook box 220, so that the barbed hook 123 can be snapped into the hook box 220 to achieve the installation purpose. In addition, the female terminal shell 110 and the male terminal shell 210 are both designed with a D-shaped asymmetric structure, which has a strong visual foolproofing effect. Even if the user makes an incorrect insertion without observation, that is, in a blind insertion situation, the male plug 200 will not be able to be successfully plugged into the female plug 100 because the male terminal shell 210 and the female terminal shell 110 both adopt a D-shaped asymmetric structure design.

[0032] In some embodiments, a disassembly groove 221 is provided on the side of the hook box 220 facing away from the male terminal shell 210. The disassembly groove 221 is used to latch the barbed hook 123. By pressing the barbed hook 123 at the disassembly groove 221, the barbed hook 123 can be detached from the hook box 220 to achieve the purpose of disassembly.

[0033] In some embodiments, as Figure 2 and Figure 5 As shown, the hook arm 121 is provided with an escape groove 129, which includes a butt end 127 and a connecting end 128 that are separated from each other. The escape groove 129 penetrates the hook arm 121 along the third direction Z, with the butt end 127 facing the male plug 200. The barbed hook 123 is connected to the hook arm 121 at the butt end 127, and the barbed hook 123 extends along the escape groove 129 toward the connecting end 128. The structural design of the barbed hook 123 can effectively prevent the barbed hook 123 from deforming inwardly toward the escape groove 129 when subjected to tension.

[0034] In some embodiments, as Figure 2 and Figure 5 As shown, the hook assembly 120 further includes a force-applying shoulder 122 , and the barbed hook 123 is connected to the hook arm 121 via the force-applying shoulder 122 , and the force-applying shoulder 122 protrudes toward the side of the hook arm 121 away from the female terminal housing 110 .

[0035] In some embodiments, as Figure 3 and Figure 5 As shown, the barbed hook 123 is away from the force-applying shoulder 122.

[0036] The end is provided with an anti-slip portion 124, and the hook box 220 has a side wall 224. After the female terminal shell 110 and the male terminal shell 2105 are relatively plugged in, the anti-slip portion 124 abuts against the side wall 224 of the hook box 220. The anti-slip portion 124 is used to prevent

[0037] The barb-stopping hook 123 deforms outwards under the tensile force, resulting in failure of the anti-tensioning function.

[0038] In some embodiments, as Figure 2 As shown, the hook assembly 120 further includes a first guide portion 125 and a second guide portion 126, a hook arm 121, a first guide portion 125, a force-applying shoulder 122, a barbed hook 123, and a first guide portion 126.

[0039] The second guide portion 126 and the anti-slip portion 124 are connected in sequence. It should be noted that the first guide portion 125 is an inclined surface, and the inclined surface forms a first angle with the hook arm 121, and the first angle is an acute angle. The inclined surface is used as an insertion guide.

[0040] and, the second guide portion 126 is a slope, the slope is used as a disassembly guide slope.

[0041] like Figures 1 to 3 As shown, the hook box 220 is provided with a receiving cavity 223, and the receiving cavity 223 is communicated with the disassembly slot 221. When the hook assembly 120 is inserted into the receiving cavity 223 of the hook box 220, and the hook assembly 120 is in contact with the disassembly slot 221,

[0042] When the hook box 220 is docked, the barbed hook 123 is buckled in the hook box 220, and the anti-slip portion 124 abuts against the hook box 220, and the force-applying shoulder 122 passes through the accommodating cavity 223 from the disassembly slot 221;

[0043] When the hook 123 is connected to the hook box 220 by a buckle, the force-applying shoulder 122 is pressed from the outside of the disassembly groove 221, so that the barbed hook 123 is separated from the hook box 220, and the anti-detachment portion 124 is no longer in contact with the hook box 220, thereby releasing the buckle fit between the female plug 100 and the male plug 200.

[0044] like Figure 4 As shown, in order to make the female plug 100 more smoothly inserted into the male plug 200, the barb hook 1230 does not deform and cause the barb hook 123 to interfere with the hook box 220, the thickness and design of the barb hook 123 are

[0045] The height and the height dimensions inside the hook box 220 are to be subjected to deformation simulation, and at the same time, the design requirement of easy disassembly is taken into consideration. In the implementation of this application, the accommodating cavity 223 of the hook box 220 has a first height H along the third direction Z, and the barbed hook 123 has a second height L along the third direction Z, satisfying: L≤H; and the barbed hook 123 has a first thickness P along the third direction Z, satisfying: L=2.5P.

[0046] 5 At the same time, in order to facilitate disassembly, the length of the disassembly slot 221 should be as long as possible, for example, at least the length of the first level of the thumb.

[0047] 1 / 4 to 1 / 3 of the section length. In the specific embodiment of the present application, the disassembly groove 221 is provided with a depth G along the third direction Z, and the hook arm 121 has a second thickness K along the third direction Z, which needs to satisfy: G=LK; the disassembly groove 221 has a first length R along the second direction Y, which needs to satisfy: 7.5mm≤R≤10mm.

[0048] In some embodiments, as Figure 1 and Figure 3 As shown, a first mating portion (not numbered) is provided on the side of the female terminal shell 110 close to the hook arm 121, and a second mating portion (not numbered) is provided on the side of the hook box 220 close to the male terminal shell 210, and the first mating portion is adapted to the second mating portion.

[0049] Furthermore, in some embodiments, Figure 1 and Figure 3 As shown, the first mating portion includes grooves 112 arranged at intervals along the first direction X, and the second mating portion includes ribs 222 arranged at intervals along the first direction X. The grooves 112 and the ribs 222 are provided in a one-to-one correspondence, and the ribs 222 are used to engage with the grooves 112. In other embodiments, the first mating portion may include ribs, and the second mating portion may include grooves that match the ribs.

[0050] Both the first and second mating portions serve as auxiliary anti-mock structures, further enhancing the anti-mock effect when mating the female terminal housing 110 and the male terminal housing 210. Furthermore, the barbed hook 123 is asymmetrically designed, with a more ergonomic design at the disassembly slot 221 and a special design at the force-applying shoulder 122, making disassembly between the female terminal housing 110 and the male terminal housing 210 easier and more convenient.

[0051] The foolproof plug structure of the present application can be applied to 2PIN, 3PIN, 4PIN, 5PIN and 6PIN designs.

[0052] like Figure 1 and Figure 3As shown, the female plug 100 also includes a first plate 130, on which the female terminal housing 110 and the hook arm 121 are relatively fixed. The first plate 130 is also provided with a first anti-slip rib 131. The male plug 200 also includes a second plate 230, on which the male terminal housing 210 and the hook box 220 are relatively fixed. The second plate 230 is also provided with a second anti-slip rib 231. The first anti-slip rib 131 and the second anti-slip rib 231 are used to increase friction when the female plug 100 and the male plug 200 are connected or disconnected to prevent slipping. In addition, the male terminal housing 210 includes a male terminal 211, and the female terminal housing 110 includes a female terminal 111. When the male terminal housing 210 and the female terminal housing 110 are relatively plugged in, the male terminal 211 and the female terminal 111 are relatively plugged in.

[0053] like Figures 1 to 6 As shown, the principle of the plug-in process of the anti-misalignment plug structure provided by the present application is: the female plug 100 and the male plug 200 are plugged in relative to each other, and first the head of the hook arm 121 enters the hook box 220, and also guides the insertion of the female terminal shell 110 into the male terminal shell 210; continue to insert, at this time the first guide part 125 of the hook assembly 120 is squeezed by the side wall 224 of the hook box 220, and the hook arm 121 and the barbed hook 123 are deformed inward at the same time; continue to insert, when inserted into place, the barbed hook 123 and the hook arm 121 automatically rebound, and at the same time, the anti-slip part 124 is blocked by the side wall 224 of the hook box 220, which plays a fixing and anti-pull role.

[0054] like Figures 1 to 7 As shown, the principle of the disassembly process of the fool-proof plug structure provided in the present application is: press the force-applying shoulder 122 with the tip of the thumb, and the hook arm 121 and the barbed hook 123 are deformed inward at the same time; at the same time, pull the female plug 100 and the male plug 200 outward, after which the second guide portion 126 of the hook assembly 120 is squeezed by the side wall 224 of the hook box 220, and the hook arm 121 and the barbed hook 123 are deformed inward at the same time, so that the plug can be pulled out smoothly.

[0055] The fool-proof plug structure provided by the present application is provided with a hook assembly 120 and a female terminal shell 110 in the female plug 100, the hook assembly 120 includes a hook arm 121 and a barbed hook 123, the barbed hook 123 protrudes from the hook arm 121 toward the side facing away from the female terminal shell 110, and a hook box 220 and a male terminal shell 210 are provided in the male plug 200. The female terminal shell 110 and the male terminal shell 210 are relatively plugged in, and the hook assembly 120 is assembled with the hook box 220 to achieve the adaptation of the hook box 220 to the barbed hook 123; a disassembly groove 221 is provided on the side of the hook box 220 facing away from the male terminal shell 210, which can enable the barbed hook 123 to be snapped into the disassembly groove 221 to achieve the purpose of docking, and by pressing the barbed hook 123 at the disassembly groove 221, the barbed hook 123 can be detached from the hook box 220 to achieve the purpose of disassembly. In addition, the female terminal shell 110 and the male terminal shell 210 are both designed with an asymmetric structure, which has a strong visual anti-fool-proofing effect. Without observation, the user may make an incorrect insertion even in a blind insertion situation. Because the male terminal shell and the female terminal shell are both designed with an asymmetric structure, the male plug and the female plug cannot be successfully plugged together. The first mating part and the second mating part can further assist in anti-fool-proofing.

[0056] The above is a detailed introduction to the foolproof plug structure provided in the embodiment of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A foolproof plug structure, characterized in that: include: A female plug (100), the female plug (100) comprising a female terminal shell (110) and a hook assembly (120) arranged opposite to each other, the hook assembly (120) comprising a connected hook arm (121) and a barbed hook (123), the barbed hook (123) protruding from the hook arm (121) toward a side facing away from the female terminal shell (110); A male plug (200), comprising a male terminal shell (210) and a hook box (220) arranged opposite to each other, the male terminal shell (210) being plugged into the female terminal shell (110) opposite to each other, and the hook box (220) being adapted to the barbed hook (123); The hook box (220) is provided with a receiving cavity (223); a disassembly groove (221) communicating with the receiving cavity (223) is provided on a side of the hook box (220) away from the male terminal shell (210); the barbed hook (123) is connected to the hook arm (121) at a position facing the male plug (200) and extends in a direction away from the male plug (200); the barbed hook (123) is connected to the hook arm (121) via a force-applying shoulder (122); an anti-slip portion (124) is provided at one end of the barbed hook (123) away from the force-applying shoulder (122); the hook assembly (120) is inserted into the receiving cavity (223), the anti-slip portion (124) abuts against the hook box (220), and the force-applying shoulder (122) passes through the receiving cavity (223) from the disassembly groove (221).

2. The foolproof plug structure according to claim 1, characterized in that: The force-applying shoulder (122) is protruding toward the side of the hook arm (121) away from the female terminal housing (110).

3. The foolproof plug structure according to claim 2, characterized in that: When the barbed hook (123) is adapted to the hook box (220), the force-applying shoulder (122) is located in the disassembly groove (221).

4. The foolproof plug structure according to claim 3, characterized in that: The hook box (220) has a side wall (224), and after the male terminal housing (210) and the female terminal housing (110) are relatively plugged in, the anti-slip portion (124) abuts against the side wall (224).

5. The foolproof plug structure according to claim 4, characterized in that: The hook arm (121) is provided with an avoidance groove (129), the avoidance groove (129) includes a butt end (127) and a connection end (128) that are separated from each other, the avoidance groove (129) passes through the hook arm (121) along a third direction (Z), the butt end (127) is arranged toward the male plug (200), the barbed hook (123) is connected to the hook arm (121) at the butt end (127), and the barbed hook (123) extends along the avoidance groove (129) toward the connection end (128).

6. The foolproof plug structure according to claim 4, characterized in that: The hook assembly (120) further includes a first guide portion (125) and a second guide portion (126), wherein the hook arm (121), the first guide portion (125), the force-applying shoulder (122), the barbed hook (123), the second guide portion (126) and the anti-slip portion (124) are connected in sequence.

7. The foolproof plug structure according to any one of claims 1 to 6, characterized in that: A first matching portion is provided on a side of the female terminal shell (110) close to the hook arm (121), and a second matching portion is provided on a side of the hook box (220) close to the male terminal shell (210), wherein the first matching portion is adapted to the second matching portion.

8. The foolproof plug structure according to claim 7, characterized in that: The first matching portion includes grooves (112) arranged at intervals along a first direction (X), and the second matching portion includes convex ribs (222) arranged at intervals along the first direction (X), and the convex ribs (222) are used for snap-fit ​​connection with the grooves (112).

9. The foolproof plug structure according to claim 5, characterized in that: The hook box (220) is provided with a receiving cavity (223), the receiving cavity (223) has a first height H along the third direction (Z), and the barbed hook (123) has a second height L along the third direction (Z), satisfying: L≤H.

10. The foolproof plug structure according to claim 9, characterized in that: The barbed hook (123) has a first thickness P along the third direction (Z), satisfying: L=2.5P.

11. The foolproof plug structure according to claim 9, characterized in that: The disassembly groove (221) has a depth G along the third direction (Z), and the hook arm (121) has a second thickness K along the third direction (Z), satisfying: G=LK.

12. The foolproof plug structure according to claim 3, characterized in that: The disassembly groove (221) has a first length R along the second direction (Y), satisfying: 7.5 mm ≤ R ≤ 10 mm.

13. The foolproof plug structure according to claim 12, characterized in that: The cross sections of the female terminal housing (110) and the male terminal housing (210) along the second direction (Y) both present a D-shaped structure.

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