A wire-to-board quick plug connector with a dual anti-fooling protection structure

Abstract

The present invention discloses a wire-to-board quick plug connector with a double fool-proof protection structure, which relates to the technical field of connectors and includes a docking shell, wherein an upper docking groove is provided at the inner upper side end of the docking shell, and a lower docking groove is provided at the inner lower side end of the docking shell, and an upper docking block and a lower docking block are respectively fixedly connected to the sides of the docking connector body. The wire-to-board quick plug connector with a double fool-proof protection structure can perform preliminary fool-proof treatment on the docking insertion of the docking connector body by setting a fool-proof mechanism once, thereby reducing the possibility of the connector burning due to continuous docking of the docking connector body in opposite docking directions. Since the upper docking groove and the lower docking groove are of different lengths, when the lower docking block is docked into the upper docking groove, the shorter upper docking groove contacts the lower docking block, thereby limiting the continuous movement of the lower docking block and hindering the continuous incorrect docking operation of the docking connector body.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and particularly to a wire-to-board quick plug connector with a dual anti-fool protection structure. Background Art

[0002] Wire-to-board connectors mainly achieve the connection between wires and circuit boards in the form of pins and sockets. The pins are metal pins fixed on the circuit board, while the sockets are metal slots fixed on the wires. When the pins are inserted into the sockets, the metal pins are in close contact with the metal slots, thus establishing an electrical connection. This connection method is simple, reliable, and easy to install and maintain;

[0003] When the user inserts the wire end, inserting it in the wrong direction, either forward or backward, can easily cause contact or abnormal burning of the machine.

[0004] To overcome the above defects, Prior Art 1 (Chinese Patent with Publication No. CN110165469B and Publication Date of April 1, 2022) is an anti-fool connector with a USB interface for signal transmission and power transmission of small electronic products, which includes: a male connector, including a core plug-in part, one end of the core plug-in part is provided with a USB female socket for connecting to a USB; a female connector, including a female body and a female electronic circuit board, a metal elastic piece is arranged in the female body, the metal elastic piece is respectively connected to the core plug-in part and the female electronic circuit board, and an anti-fool component, the anti-fool component includes a male end component and a female end component, the male end component is arranged on the male connector, the female end component is arranged on the female connector, and is complementary in shape to match the male end component.

[0005] There is also Prior Art 2 (Chinese Patent with Publication No. CN106267545B and Publication Date of May 17, 2019), an anti-fool closed joint, including a first connecting piece and a second connecting piece. The first connecting piece includes first and second ends, the first end forms a groove and a first ratchet tooth, a slide rail is annularly arranged on the inner side wall of the groove, and the second end is connected to a first component. The second connecting piece includes first and second ends and a large-diameter section, the first end forms a second ratchet tooth and is arranged in the groove, the first ratchet tooth selectively meshes with the second ratchet tooth, so that the first connecting piece drives the second connecting piece to rotate unidirectionally in the first direction, and the second end of the second connecting piece is screwed to a second component, a sliding groove is annularly arranged on the large-diameter section, when the first connecting piece rotates in the first direction or the second connecting piece rotates in the opposite direction of the first direction, the second ratchet tooth is broken by the first ratchet tooth, so that the second connecting piece rotates 360 degrees relative to the first connecting piece through the slide rail and the sliding groove.

[0006] and the prior art 3 (Chinese Patent with Publication No. CN211265867U and Publication Date of August 14, 2020), a connector assembly with an anti-fooling function, comprising: a board-end connector, the board-end connector includes a board-end main body and a board-end housing, the board-end housing is sleeved outside the board-end main body, and a plugging hole is formed between the board-end housing and the board-end main body; a wire-end connector, the wire-end connector is plugged on the top of the board-end connector, including a wire-end main body, the wire-end main body includes a plugging wall, a pair of first side walls and a second side wall, the plugging wall is parallel to the second side wall and is connected between the pair of first side walls. A connector assembly with an anti-fooling function, through the mutual cooperation of the second side wall and the pair of first side walls, avoids reverse plugging when the wire-end connector is plugged into the board-end connector, has the function of anti-fooling, and the second side wall is connected to the first side wall, strengthening the structural strength of the wire-end main body

[0007] Although the prior arts 1, 2 and 3 can perform anti-fooling treatment on the connector to prevent the phenomenon of reverse confusion when the wire end is inserted, their anti-fooling structures are relatively single. If the user does not realize the insertion error and forcibly assembles the wire end, it will cause data transmission failure and the socket will also be damaged.

[0008] Therefore, we propose a wire-to-board quick plug connector with a dual anti-fooling protection structure to solve the problems raised above. Summary of the Invention

[0009] The purpose of the present invention is to provide a wire-to-board quick plug connector with a dual anti-fooling protection structure to solve the problem in the above background technology that the anti-fooling structure in the current market is relatively single. If the user does not realize the insertion error and forcibly assembles the wire end, it will cause data transmission failure and the socket will also be damaged.

[0010] To achieve the above purpose, the present invention provides the following technical solution: A wire-to-board quick plug connector with a dual anti-fooling protection structure, comprising a docking housing, an upper docking groove is opened at the upper side end inside the docking housing, a lower docking groove is opened at the lower side end inside the docking housing, and a docking device body is disposed inside the docking housing in a docking manner, and an upper docking block and a lower docking block are respectively and fixedly connected to the side of the docking device body;

[0011] A top groove is opened at the top of the docking housing, and a primary anti-fooling mechanism for performing preliminary anti-fooling treatment is disposed between the inside of the top groove and the upper docking groove, and a secondary anti-fooling mechanism is disposed between the side and the lower surface inside the docking housing.

[0012] Preferably, the primary anti-fooling mechanism includes a turntable which is nested and connected to the inner side of the docking housing. A torsion spring is fixedly connected between the inner side of the turntable and the docking housing. A rotating rod is hinged to the outer side end of the turntable. A connecting block is fixedly connected to the outer side of the end of the upper rotating rod, and the connecting block is nested and connected inside the upper docking groove. A protrusion is fixedly connected to the upper surface of the upper rotating rod.

[0013] A connecting shaft is nested and connected to the lower side of the top groove. An adjusting disc is fixedly connected to the outer side of the connecting shaft. A rotating pressing block is fixedly connected to the connecting shaft.

[0014] Preferably, the turntable forms a rotating structure with the docking housing through the rotating rod, and the turntable forms an elastic structure with the docking housing through the torsion spring. Two groups of rotating rods are arranged up and down with respect to the turntable.

[0015] Preferably, grooves are evenly formed on the outer side of the adjusting disc. The upper end of the protrusion is nested and connected inside the groove of the adjusting disc. The connecting shaft forms a rotating structure with the docking housing through the adjusting disc. The width of the top groove is greater than the maximum value of the height of the rotating pressing block.

[0016] Preferably, the secondary anti-fooling mechanism includes an adjusting groove which is formed on the inner side of the docking housing. A limiting rod is fixedly connected to the inside of the adjusting groove. A moving plate is nested and connected to the outer side of the limiting rod. The side of the moving plate is hinged to the other end of the lower rotating rod. An extrusion rod is fixedly connected to the lower end of the moving plate.

[0017] A driving rod is nested and connected to the inside of the docking housing. An inclined block is fixedly connected to the upper end of the driving rod. A placing plate is fixedly connected to the lower end of the driving rod. A limiting baffle is nested and connected to the upper surface of the placing plate. A return spring is fixedly connected between the placing plate and the docking housing and is wound around the side of the driving rod.

[0018] Preferably, the moving plate forms a sliding structure with the limiting rod through the rotating rod. The end side of the extrusion rod is located on one side of the inclined edge of the inclined block.

[0019] Preferably, the driving rod forms a sliding structure with the docking housing through the inclined block. The placing plate forms an elastic structure with the docking housing through the return spring.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] By setting the primary anti-fooling mechanism, preliminary anti-fooling treatment can be carried out on the docking insertion of the docking device body, thereby reducing the possibility of the connector being burned out due to the continuous docking of the docking device body in the opposite docking direction. At the same time, through the set secondary anti-fooling mechanism, the docking device body with incorrect docking is further prevented from continuous docking.

[0022] When the user makes a docking error, the lower docking block will dock into the upper docking groove, and the upper docking block will dock into the lower docking groove. Due to the different lengths of the upper and lower docking grooves, when the lower docking block docks into the upper docking groove, the shorter upper docking groove contacts the lower docking block, thereby limiting the continuous movement of the lower docking block and preventing the continuous incorrect docking operation of the docking device body.

[0023] When the user makes a docking error, the lower docking block will dock into the upper docking groove. At this time, the end side of the lower docking block will contact the connecting block, thereby squeezing and driving the connecting block to slide along the upper docking groove. At this time, the connecting block will synchronously drive the rotating rod to move. At this time, the protrusion arranged on the upper side of the rotating rod is nested and connected to the groove opened on the side of the adjusting disk, thereby driving the adjusting disk to rotate. The connecting shaft will rotate synchronously under the driving action of the adjusting disk, and drive the rotating pressing block to rotate, thereby contacting the docking device body through the top groove, thereby prompting the user that the docking device body is docked in the wrong direction;

[0024] When the upper rotating rod moves, it will synchronously drive the rotating disk to rotate at a small angle. At this time, the rotating disk will synchronously drive the lower rotating rod to rotate. When the lower rotating rod rotates, it will pull the moving plate, so that the moving plate moves along the limit rod. When the limit rod moves, it will drive the extrusion rod to conflict with the lower side of the tilting block, so that the tilting block drives the driving rod to move upward. At this time, the driving rod will drive the driving rod to move upward and extend through the placement plate, thereby further preventing the insertion of the docking device body and reducing the occurrence of equipment burning due to docking errors.

[0025] When the user takes out the incorrectly docked docking device body, the connecting block is not resisted, and the turntable is reset under the drive of the elastic force of the torsion spring, thereby driving the rotating rod to reset. At this time, the rotating pressure block rotates outward and expands, and at the same time, the placing plate moves downward and resets under the drive of the elastic force of the reset spring. At this time, the driving rod and the rotating pressure block do not block the docking device body, and the user can correctly dock and insert the docking device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the docking housing of the present invention;

[0027] Figure 2 It is a schematic diagram of a three-dimensional cross-sectional structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the placement plate of the present invention;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the turntable of the present invention;

[0030] Figure 5Schematic diagram of the three-dimensional structure of the driving rod of the present invention;

[0031] Figure 6 Schematic diagram of the three-dimensional structure of the limiting rod of the present invention;

[0032] Figure 7 Schematic diagram of the three-dimensional structure of the protrusion of the present invention;

[0033] Figure 8 Schematic diagram of the three-dimensional structure of the lower docking block of the present invention.

[0034] In the figure: 1, docking housing; 2, docking device body; 3, upper docking groove; 4, lower docking groove; 5, upper docking block; 6, lower docking block; 7, top groove; 8, rotating pressing block; 9, torsion spring; 10, protrusion; 11, connecting shaft; 12, turntable; 13, adjustment groove; 14, limiting baffle; 15, placing plate; 16, driving rod; 17, moving plate; 18, extrusion rod; 19, inclined block; 20, return spring; 21, limiting rod; 22, rotating rod; 23, connecting block; 24, adjustment disc. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0036] Embodiment 1: As shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 8 for the technical solution shown, the present invention provides the following technical solution: A wire-to-board quick plug connector with a dual anti-fool protection structure, which discloses a docking housing 1, and the docking housing 1 can be docked with the docking device body 2:

[0037] It includes a docking housing 1. An upper docking groove 3 is opened at the upper side end inside the docking housing 1, and a lower docking groove 4 is opened at the lower side end inside the docking housing 1. And a docking device body 2 is disposed inside the docking housing 1 in a docking manner. And an upper docking block 5 and a lower docking block 6 are respectively fixedly connected to the side of the docking device body 2. A top groove 7 is opened at the top of the docking housing 1, and a primary anti-fool mechanism for performing preliminary anti-fool processing is provided between the inside of the top groove 7 and the upper docking groove 3. And a secondary anti-fool mechanism is provided between the side and the lower surface inside the docking housing 1.

[0038] The length of the upper docking groove 3 is less than the length of the lower docking groove 4, and the length of the upper docking block 5 is less than the length of the lower docking block 6.

[0039] By setting the primary anti-fooling mechanism, it can initially prevent incorrect docking insertion of the docking connector body 2, thereby reducing the possibility of the connector burning out due to continuous docking with the opposite docking direction of the docking connector body 2. At the same time, the secondary anti-fooling mechanism further prevents the continuously incorrect docking of the docking connector body 2. When the user takes out the incorrectly docked docking connector body 2, at this time, the connecting block 23 is not resisted, and the turntable 12 will reset under the driving force of the elastic force of the torsion spring 9, thereby driving the rotating rod 22 to reset. At this time, the rotating pressing block 8 rotates outward and unfolds. At the same time, the placing plate 15 moves downward and resets under the driving force of the elastic force of the reset spring 20. At this time, the driving rod 16 and the rotating pressing block 8 do not block the docking connector body 2, and the user can correctly dock and insert the docking connector body 2. When the user makes a docking error, the lower docking block 6 will dock into the upper docking groove 3, and the upper docking block 5 will dock into the lower docking groove 4. Since the lengths of the upper docking groove 3 and the lower docking groove 4 are different, when the lower docking block 6 docks into the inside of the upper docking groove 3, the shorter upper docking groove 3 resists the lower docking block 6, thereby restricting the continuous movement of the lower docking block 6 and hindering the continuous incorrect docking operation of the docking connector body 2.

[0040] Embodiment 2: As Figure 2 , Figure 4 and Figure 7 shown in the technical solution, the present invention provides the following technical solution: A wire-to-board quick plug connector with a dual anti-fooling protection structure discloses a primary anti-fooling mechanism, which can initially prevent the incorrect docking direction of the docking connector body 2:

[0041] The primary anti-fooling mechanism includes a turntable 12, which is nested and connected to the inner side of the docking housing 1. A torsion spring 9 is fixedly connected between the inner side of the turntable 12 and the docking housing 1. The outer side end of the turntable 12 is hinged with a rotating rod 22. A connecting block 23 is fixedly connected to the outer end of the upper rotating rod 22, and the connecting block 23 is nested and connected to the inside of the upper docking groove 3. A protrusion 10 is fixedly connected to the upper surface of the upper rotating rod 22;

[0042] A connecting shaft 11 is nested and connected to the lower side of the top groove 7. An adjusting disc 24 is fixedly connected to the outer side of the connecting shaft 11. A rotating pressing block 8 is fixedly connected to the connecting shaft 11. The turntable 12 forms a rotating structure with the docking housing 1 through the rotating rod 22. The turntable 12 forms an elastic structure with the docking housing 1 through the torsion spring 9. Two groups of rotating rods 22 are arranged above and below the turntable 12. Grooves are evenly opened on the outer side of the adjusting disc 24, and the upper end of the protrusion 10 is nested and connected to the groove of the adjusting disc 24. The connecting shaft 11 forms a rotating structure with the docking housing 1 through the adjusting disc 24. The width of the top groove 7 is greater than the maximum value of the height of the rotating pressing block 8.

[0043] When the user makes a docking error, the lower docking block 6 will dock into the upper docking groove 3. At this time, the end side of the lower docking block 6 will contact the connecting block 23, thereby squeezing and driving the connecting block 23 to slide along the upper docking groove 3. At this time, the connecting block 23 will synchronously drive the rotating rod 22 to move. At this time, the protrusion 10 set on the upper side of the rotating rod 22 is nested and connected to the inside of the groove opened on the side of the adjusting disk 24, thereby driving the adjusting disk 24 to rotate, thereby contacting the docking device body 2 through the top groove 7, thereby prompting the user that the docking device body 2 is docked in the wrong direction.

[0044] Embodiment 3: Figure 3 , Figure 5 and Figure 6 The technical solution shown in the figure, the present invention provides the following technical solution: a wire-to-board quick plug connector with a double foolproof protection structure, a secondary foolproof mechanism is disclosed, and the secondary foolproof mechanism can further prevent the docking direction error of the docking device body 2:

[0045] The secondary foolproofing mechanism includes an adjustment slot 13, which is provided on the inner side of the docking housing 1, and a limit rod 21 is fixedly connected to the inner side of the adjustment slot 13, and a movable plate 17 is nested and connected to the outer side of the limit rod 21, and the side of the movable plate 17 and the other end of the lower rotating rod 22 are hinged to each other, and the lower end of the movable plate 17 is fixedly connected to the extrusion rod 18;

[0046] A driving rod 16 is nested and connected inside the docking shell 1, and a tilting block 19 is fixedly connected to the upper end of the driving rod 16, and a placement plate 15 is fixedly connected to the lower end of the driving rod 16. At the same time, a limiting baffle 14 is nested and connected to the upper surface of the placement plate 15. A reset spring 20 is fixedly connected between the placement plate 15 and the docking shell 1, and the reset spring 20 is wound around the side of the driving rod 16. The moving plate 17 forms a sliding structure with the limiting rod 21 through a rotating rod 22. The end side of the extrusion rod 18 is located on the side of the tilting edge of the tilting block 19. The driving rod 16 forms a sliding structure with the docking shell 1 through the tilting block 19, and the placement plate 15 forms an elastic structure with the docking shell 1 through the reset spring 20.

[0047] When the upper rotating rod 22 moves, it will synchronously drive the turntable 12 to rotate at a small angle. At this time, the turntable 12 will synchronously drive the lower rotating rod 22 to rotate. When the lower rotating rod 22 rotates, it will pull the movable plate 17, so that the movable plate 17 moves along the limit rod 21. When the limit rod 21 moves, it will drive the extrusion rod 18 to conflict with the lower side of the tilting block 19, so that the tilting block 19 drives the driving rod 16 to move upward. At this time, the driving rod 16 will drive the driving rod 16 to move upward and extend through the placement plate 15, thereby further preventing the insertion of the docking device body 2 and reducing the occurrence of equipment burning due to docking errors.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wire-to-board quick plug connector with a dual anti-fooling protection structure, comprising a docking housing (1). An upper docking groove (3) is formed at the upper side end inside the docking housing (1), and a lower docking groove (4) is formed at the lower side end inside the docking housing (1). A docking body (2) is disposed inside the docking housing (1) in a docking manner. Upper docking blocks (5) and lower docking blocks (6) are fixedly connected to the sides of the docking body (2) respectively. The length of the upper docking groove (3) is less than that of the lower docking groove (4), and the length of the upper docking block (5) is less than that of the lower docking block (6). It is characterized in that A top groove (7) is formed at the top of the docking housing (1), and a primary anti-fooling mechanism for preliminary anti-fooling treatment is provided between the inside of the top groove (7) and the upper docking groove (3). A secondary anti-fooling mechanism is provided between the side and the lower surface inside the docking housing (1). The primary anti-fooling mechanism includes a turntable (12). The turntable (12) is nested and connected to the inner side of the docking housing (1). A torsion spring (9) is fixedly connected between the inner side of the turntable (12) and the docking housing (1). The outer side end of the turntable (12) is hinged with a rotating rod (22). The turntable (12) forms a rotating structure with the docking housing (1) through the rotating rod (22). The turntable (12) forms an elastic structure with the docking housing (1) through the torsion spring (9). Two groups of rotating rods (22) are arranged up and down with respect to the turntable (12). A connecting block (23) is fixedly connected to the outer side of the end of the upper rotating rod (22). The connecting block (23) is nested and connected inside the upper docking groove (3). A protrusion (10) is fixedly connected to the upper surface of the upper rotating rod (22). A connecting shaft (11) is nested and connected to the lower side of the top groove (7). An adjusting disc (24) is fixedly connected to the outer side of the connecting shaft (11). A rotating pressing block (8) is fixedly connected to the connecting shaft (11). Grooves are evenly formed on the outer side of the adjusting disc (24). The upper end of the protrusion (10) is nested and connected inside the groove of the adjusting disc (24). The connecting shaft (11) forms a rotating structure with the docking housing (1) through the adjusting disc (24). The width of the top groove (7) is greater than the maximum value of the height of the rotating pressing block (8). The secondary anti-fooling mechanism includes an adjusting groove (13). The adjusting groove (13) is formed on the inner side of the docking housing (1). A limiting rod (21) is fixedly connected to the inside of the adjusting groove (13). A moving plate (17) is nested and connected to the outer side of the limiting rod (21). The other end of the lower rotating rod (22) is hinged to the side of the moving plate (17). An extrusion rod (18) is fixedly connected to the lower end of the moving plate (17). A driving rod (16) is nested and connected to the inside of the docking housing (1). An inclined block (19) is fixedly connected to the upper end of the driving rod (16). A placing plate (15) is fixedly connected to the lower end of the driving rod (16). A limiting baffle (14) is nested and connected to the upper surface of the placing plate (15). A return spring (20) is fixedly connected between the placing plate (15) and the docking housing (1). The return spring (20) is wound around the side of the driving rod (16). The moving plate (17) forms a sliding structure with the limiting rod (21) through the lower rotating rod (22). The end side of the extrusion rod (18) is located on one side of the inclined edge of the inclined block (19). The driving rod (16) forms a sliding structure with the docking housing (1) through the inclined block (19). The placing plate (15) forms an elastic structure with the docking housing (1) through the return spring (20).

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