Plug connector

Abstract

The utility model relates to a plug connector, comprising a first connecting terminal and a second connecting terminal, the first connecting terminal is provided with a first wire inlet hole and a first opening, the first opening is provided with a plug-in gland, the plug-in gland is provided with a plug-in connecting part extending along a first wire inlet direction, the second connecting terminal is provided with a second wire inlet hole and a second opening, and the plug-in gland is provided with a plug-in connecting part extending along a second wire inlet direction. A connecting piece gland is arranged at the second opening and is provided with a connecting piece connecting part which can be connected with the inserting piece connecting part in an inserting manner; the first connection terminal and / or the second connection terminal are / is provided with a wire releasing device. The wire releasing device is used for opening or closing the plug-in clamping device in the first connection terminal and / or the connector clamping device in the second connection terminal. And after the plug-in connecting part and the connector connecting part are plugged, the first contact of the plug-in clamping device is electrically connected with the second contact of the connector clamping device. Through the arrangement of the plug-in gland and the connector gland which can be used in cooperation, at least two connecting terminals can be connected at the same time, the structure is simple, and assembling is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a plug connector. Background Art

[0002] With the development of technology, connectors generally serve the purpose of wiring and powering, achieving a good connection function for wiring and powering. They are an important wiring component for connecting electrical appliances and connecting terminals to each other. Connecting terminals can generally only be used with a single connecting terminal. Auxiliary tools are required to complete the installation of wires between multiple connecting terminals, and assembly is inconvenient. Therefore, the structure of existing connectors needs to be improved. Utility Model Content

[0003] Based on this, in order to overcome at least one of the defects of the prior art described above, the present invention provides a plug connector with a simple structure, which can be plugged in and used and is easy to assemble.

[0004] A plug connector includes a first connecting terminal and a second connecting terminal.

[0005] The first connecting terminal is provided with a first wire entry hole and a first opening, a plug-in cover is provided at the first opening, and the plug-in cover is provided with a plug-in connection portion extending along the first wire entry direction, the plug-in connection portion is a hollow structure and communicates with the first wire entry hole, and a plug-in clamping device is provided in the first connecting terminal, the plug-in clamping device includes a plug-in clamping spring and a first contact connected to the plug-in clamping spring, and the first contact extends into the plug-in connection portion;

[0006] The second connecting terminal is provided with a second wire entry hole and a second opening, the second opening is provided with a connector cover, the connector cover is provided with a connector connection portion that can be plugged into the plug-in connection portion; the second connecting terminal is provided with a connector clamping device, the connector clamping device includes a connector clamping spring and a second contact connected to the connector clamping spring, and the second contact extends into the connector connection portion;

[0007] The first connecting terminal and / or the second connecting terminal is provided with a disconnecting device, and the disconnecting device is used to open or close the plug-in clamping device and / or the connector clamping device;

[0008] The plug-in connection portion and the connector connection portion can be plug-connected. When the plug-in connection portion and the connector connection portion are plugged together, the first contact and the second contact are electrically connected.

[0009] In one embodiment, the plug-in gland includes a plug-in socket and the plug-in connection portion, the plug-in socket is fixedly installed at the first opening, the plug-in socket includes a top surface and a first connection surface connected to the front end of the top surface, and the plug-in connection portion is formed on the first connection surface; and / or

[0010] The connector pressing cover includes a connector socket and the connector connecting portion. The connector socket is fixedly installed at the second opening. The connector socket includes a top surface and a second connecting surface connected to the front end of the top surface. The connector connecting portion is formed on the second connecting surface.

[0011] In one embodiment, the plug-in connection portion and the plug-in socket form a convex shape, and / or

[0012] The connector connecting portion and the connector socket form a convex shape.

[0013] In one embodiment, a locking mechanism is provided on the plug-in cover and / or the connector cover to fix the connection state of the plug-in connection portion and the connector connection portion.

[0014] In one embodiment, the locking mechanism includes one or more ribs located outside the convex ring, and grooves provided on the plug-in connecting portion to cooperate with the ribs.

[0015] In one embodiment, the installation and fixation of the plug-in connection portion and the connector connection portion are further fixed by snapping together with a snap-fit ​​assembly.

[0016] In one embodiment, the snap-on assembly includes a cantilevered latch provided on the second connecting surface and extending in the second incoming line direction, and a latching slot provided on the plug-in connecting portion. When the first connecting terminal is plugged and paired with the second connecting terminal, the cantilevered latch is latched and fixed to the latching slot.

[0017] In one embodiment, the extending end of the cantilevered latch is provided with an upwardly protruding hook portion, and the hook portion is engaged with the latching slot.

[0018] In one embodiment, the hook portion is provided with an anti-slip strip.

[0019] In one embodiment, the first connection terminal further comprises a first connection terminal housing, which is assembled with the plug-in cover at the first opening to form a first shell, and at least one accommodating channel is formed in the first shell; and / or

[0020] The second connecting terminal further comprises a second connecting terminal housing, which is assembled left and right together to form a second shell with the connector cover at the second opening. At least one accommodating channel is formed in the second shell and passes through the second shell.

[0021] In one embodiment, one end of the first connection terminal housing is the first wire entry hole, and the other end is fixedly connected to the plug-in socket through the first opening; one end of the second connection terminal housing is the second wire entry hole, and the other end is fixedly connected to the connector socket through the second opening.

[0022] In one embodiment, the top of the first connection terminal housing is a first plug-in board assembly extending from the top of the first wire entry hole to the rear end of the first connection terminal housing, the first plug-in board assembly includes at least one first plug-in board, one end of the first plug-in board is fixed to the top of the first wire entry hole to form a whole, and the other end of the first plug-in board is inserted into the plug-in cover to be installed and fixed;

[0023] The top of the second connection terminal housing is a second plug-in board assembly extending from the top of the second wire entry hole to the rear end of the second connection terminal housing. The second plug-in board assembly includes at least one second plug-in board. One end of the second plug-in board is fixed to the top of the second wire entry hole to form a whole, and the other end of the second plug-in board is inserted into the connector cover to form an installation and fixation.

[0024] In one embodiment, the first connection terminal housing is fixedly connected to the plug-in socket via a first snap assembly; and / or the second connection terminal housing is fixedly connected to the connector socket via a second snap assembly.

[0025] In one embodiment, the first snap assembly includes a first bottom snapping protrusion provided on the bottom surface of the first connecting terminal housing and protruding, and a plug-in bottom snapping notch provided on the bottom of the plug-in socket and fastened with the first bottom snapping protrusion; and / or a first top snapping protrusion provided on the top surface of the first plug-in board and protruding, and a plug-in top snapping notch provided on the top of the plug-in socket and fastened with the first top snapping protrusion; and

[0026] The second snap assembly includes a second bottom surface snap-in protruding head provided on the bottom surface of the second connecting terminal housing and protruding, and a bottom snap-in slot of the connector provided on the bottom of the connector socket and fastened with the second bottom surface snap-in protruding head; and / or a second top surface snap-in protruding head provided on the top surface of the second plugboard and protruding, and a top snap-in slot of the connector provided on the top of the connector socket and fastened with the second top surface snap-in protruding head.

[0027] According to the above-mentioned plug connector, a first coupling portion is provided on a first side wall of the first connecting terminal housing, and a second coupling portion matching the first coupling portion is provided on a second side wall of the connecting terminal housing opposite to the first side wall, and the first coupling portion or the second coupling portion of the first connecting terminal housing is configured to be detachably coupled to the second coupling portion or the first coupling portion of the other first connecting terminal housing, thereby connecting the connecting terminal housing and the other connecting terminal housing in parallel; and / or

[0028] A third combining portion is provided on the third side surface of the second connecting terminal housing, and a fourth combining portion matching the third combining portion is provided on the fourth side surface of the second connecting terminal housing opposite to the third side surface. The third combining portion or the fourth combining portion of the second connecting terminal housing is configured to be detachably combined with the third combining portion or the fourth combining portion of another second connecting terminal housing.

[0029] According to the above-mentioned plug-in connector, the first coupling portion includes a first protrusion provided on the first side wall in parallel with the insertion direction, and the first protrusion is U-shaped; the second coupling portion includes a second groove provided on the second side wall in parallel with the insertion direction, and the first protrusion can be inserted into the second groove of another connecting terminal housing.

[0030] In one embodiment, the second contact is a plug sleeve with a sleeve-like structure, and the first contact is a plug head that can be inserted into the plug sleeve to achieve electrical connection with the plug sleeve.

[0031] In one embodiment, the plug-in clamping device is integrally formed, and / or the connector clamping device is integrally formed.

[0032] In one embodiment, the side wall of the latch sleeve is provided with a limiting lug.

[0033] In one embodiment, the latch sleeve and / or the latch head is provided with an expansion joint that passes through the pipe wall.

[0034] In one embodiment, the latch sleeve is further provided with an expansion joint.

[0035] In one embodiment, the expansion joint is a joint that does not penetrate the pipe wall.

[0036] In one embodiment, the latch head is a cylindrical latch.

[0037] In one embodiment, at least one expansion joint is provided on the upper portion of the latch head, and the width of the expansion joint gradually narrows toward the latch opening.

[0038] In one embodiment, the off-line device includes a first off-line device and a second off-line device, one end of the first off-line device extends into the first shell to squeeze the plug-in clamping spring to open or close the first clamping interface, and the other end of the first off-line device extends out of the first shell; and one end of the second off-line device extends into the second shell to squeeze the connector clamping spring to open or close the second clamping interface, and the other end of the second off-line device extends out of the second shell.

[0039] In one embodiment, the plug-in gland is provided with at least one plug-in test port, and / or the connector cover is provided with at least one connector test port.

[0040] In one embodiment, the plug connector further includes an upper cover and a lower seat, and the upper cover and the lower seat are assembled together to form a wire protection box; the first connecting terminal and / or the second connecting terminal are installed in the space formed between the upper cover and the lower seat.

[0041] In one embodiment, the upper cover and the lower seat can be connected by screws and / or snaps.

[0042] In one embodiment, the lower seat includes a lower seat body, and the lower seat body is provided with a clamping member, one end of the clamping member is fixed to the side wall of the lower seat body, and the other end is clamped with the upper cover body.

[0043] In one embodiment, the upper cover includes an upper cover body, and a wire clip with plastic elastic force is provided on the front of the upper cover body.

[0044] In one embodiment, the plug connector further includes a wire protection box, which includes an upper cover and a lower seat, and the upper cover is hinged to the lower seat.

[0045] In one embodiment, a positioning space for positioning the first connecting terminal or the second connecting terminal is formed between the lower seat and the upper cover, and a fitting groove for exposing the plug-in connecting portion or the connector connecting portion of the first connecting terminal or the second connecting terminal is provided in front of the positioning space, and a through hole for allowing the wire to pass through and extend to the outside is provided behind the positioning space.

[0046] In one embodiment, the plug-in cover is provided with at least one plug-in card slot on the upper cover, and / or the connector cover is provided with at least one connector card slot on the upper cover. The upper cover includes an upper cover wall and two upper cover side walls connected to the upper cover wall, and the front ends of the upper cover side walls are provided with upper cover card interfaces that cooperate with the plug-in card slot on the upper cover or the connector card slot on the upper cover.

[0047] In one embodiment, a socket is provided on the rear side of the upper cover wall, and a wire clamp is fixedly connected to the rear of the socket. The wire clamp includes a connecting section and a cantilever section. The connecting section is fixed to the rear of the socket of the upper cover wall, and the cantilever section extends into the groove of the upper cover and is deformable to elastically abut the wire inserted into the through hole.

[0048] In one embodiment, the upper cover and the lower seat can be connected by screws and / or snap-fit ​​connection with a snap-fit ​​assembly.

[0049] In one embodiment, the buckle assembly includes a clamping member arranged at the rear end of the lower seat, and a clamping groove capable of being clamped to the clamping member is provided at the rear end of the upper cover side wall and at a position corresponding to the clamping member.

[0050] In one embodiment, the lower seat includes a lower seat base and two lower seat side walls connected to the lower seat base. The clamp is a longitudinally arranged strip plate structure extending upward from the lower seat base along the lower seat side walls. A buckle is provided at the end of the clamp.

[0051] In one embodiment, a rotating shaft is provided on both sides of the front end of the upper cover, and a fixed arm used in conjunction with the rotating shaft is provided on both sides of the front end of the lower seat, and the upper cover is hinged to the fixed arm of the lower seat through the rotating shaft.

[0052] In one embodiment, a straight-shaped locking pin may be provided at the end of the rotating shaft.

[0053] In one embodiment, the side wall of the upper cover body is provided with at least one reinforcing rib, and / or the side wall of the lower seat body is provided with at least one reinforcing rib.

[0054] In one embodiment, anti-slip grooves are provided on the outer side of the side wall of the lower seat body.

[0055] In one embodiment, at least one rack extending transversely through the lower seat base is provided at the connection between the clamp and the lower seat base to fix the wire.

[0056] The gland structure of the plug connector of this patent has at least the following beneficial effects: this patent can connect at least two connection terminals at the same time by providing a plug-in gland and a connector gland that can be used in conjunction with each other, thereby achieving a simple structure and easy assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 This is a front view of the plug connector of the first embodiment of the present patent;

[0058] Figure 2 is a three-dimensional diagram of the plug connector of the first embodiment of the present patent;

[0059] Figure 3 This is a three-dimensional diagram of the plug connector of embodiment 1 of this patent

[0060] Figure 4 It is a CC cross-sectional view of the plug-in connector;

[0061] Figure 5 It is an AA sectional view of the connector of the plug connector;

[0062] Figure 6 yes Figure 1 A perspective view of a plug-in gland of a plug-in connector;

[0063] Figure 7 yes Figure 1 A perspective view of a plug-in gland of a plug-in connector;

[0064] Figure 8 yes Figure 1 A three-dimensional view of a connector gland of a plug-in connector;

[0065] Figure 9 yes Figure 1 A three-dimensional view of a connector gland of a plug-in connector;

[0066] Figure 10 yes Figure 1 A perspective view of a first connection terminal housing of a plug-in connector;

[0067] Figure 11 yes Figure 1 A perspective view of a first connection terminal housing of a plug-in connector;

[0068] Figure 12 yes Figure 1 A perspective view of a second connection terminal housing of the plug-in connector;

[0069] Figure 13 yes Figure 1 A perspective view of a second connection terminal housing of the plug-in connector;

[0070] Figure 14 yes Figure 1 A perspective view of the plug-in clamping device of the plug connector;

[0071] Figure 15 yes Figure 1 A perspective view of the plug-in clamping device of the plug connector;

[0072] Figure 16 yes Figure 1 A three-dimensional view of the connector clamping device of the plug connector;

[0073] Figure 17 yes Figure 1A three-dimensional view of the connector clamping device of the plug connector;

[0074] Figure 18 yes Figure 1 A perspective view of a first disconnecting device of a plug connector;

[0075] Figure 19 yes Figure 1 A perspective view of a first disconnecting device of a plug connector;

[0076] Figure 20 yes Figure 1 A perspective view of the second disconnecting device of the plug connector;

[0077] Figure 21 yes Figure 1 A perspective view of the second disconnecting device of the plug connector;

[0078] Figure 22 yes Figure 1 A perspective view of the upper cover of the plug connector;

[0079] Figure 23 yes Figure 1 A perspective view of the upper cover of the plug connector;

[0080] Figure 24 yes Figure 1 A perspective view of the lower seat of the plug connector;

[0081] Figure 25 yes Figure 1 A perspective view of the lower seat of the plug connector;

[0082] Figure 26 is a three-dimensional diagram of the plug connector in the open or closed state according to the first embodiment of the present invention;

[0083] Figure 27 This is a diagram of the plug connector in use according to the first embodiment of the present invention;

[0084] Figure 28 yes Figure 1 A perspective view of the first connecting terminal of the plug connector and the wire protection box in an open state;

[0085] Figure 29 This is a three-dimensional diagram of the disconnecting device of the plug connector in the second embodiment of the present patent;

[0086] Figure 30 This is a three-dimensional diagram of the disconnecting device of the plug connector in the second embodiment of the present patent;

[0087] Figure 31 This is a three-dimensional diagram of the upper cover of the plug connector of the third embodiment of the present patent;

[0088] Figure 32 This is a three-dimensional diagram of the upper cover of the plug connector of the third embodiment of the present patent;

[0089] Figure 33 This is a three-dimensional diagram of the lower seat of the plug connector of the third embodiment of the present patent;

[0090] Figure 34 This is a three-dimensional diagram of the lower seat of the plug connector of the third embodiment of the present patent;

[0091] Figure 35 is a three-dimensional diagram of the plug connector of the third embodiment of the present patent;

[0092] Figure 36 is a three-dimensional diagram of the plug connector of the third embodiment of the present patent;

[0093] Figure 37 This is a stereoscopic diagram of the plug connector of Example 1 of the present patent and the plug connector of Example 3 being installed in coordination;

[0094] Figure 38 This is a three-dimensional diagram of the plug connector of Example 1 of this patent being installed in conjunction with the plug connector of Example 3;

[0095] Figure 39 This is a three-dimensional diagram of the plug-in connector of embodiment 1 of this patent being installed in coordination with the plug-in connector of embodiment 1.

[0096] Figure 40 This is a three-dimensional diagram of the plug connector of Example 1 of this patent being installed in conjunction with the plug connector of Example 3;

[0097] Component number description:

[0098] Plug-in connector: 100; first connection terminal: 200; second connection terminal: 300; wire protection box 400;

[0099] Plug-in cover: 1; plug-in connection portion: 11; groove: 112; ring groove: 114; plug-in socket: 12; plug-in top card slot: 121; plug-in bottom card slot: 122; first connection surface: 13; buckle card slot: 116; plug-in test port: 14; plug-in positioning plate: 124; lower plug-in card slot: 15; plug-in socket slot: 16; plug-in bottom slot: 161; plug-in side slot: 162; plug-in slot: 163;

[0100] First connection terminal housing: 2; first wire entry hole: 210; first opening: 220; plug-in board assembly: 22; plug-in board: 221; gap: 222; first top surface card protrusion: 23; second plug-in bottom surface card protrusion: 24; first joint: 251; second joint: 252;

[0101] Second connection terminal housing: 2'; first wire entry hole: 21'; first opening: 220'; plugboard assembly: 22'; plugboard: 221'; gap: 222'; second top surface card protrusion: 23; second plug bottom surface card protrusion': 24; third joint: 251'; fourth joint: 252';

[0102] First de-threading device: 3; connecting arm: 31; supporting arm: 32; accommodating area: 33; first supporting portion: 34; second supporting portion: 35; bottom of first supporting portion: 36;

[0103] Second de-threading device: 3'; connecting arm: 31'; support arm: 32'; accommodating area: 33'; first support portion: 34'; second support portion: 35'; bottom of the first support portion: 36';

[0104] Plug-in clamping device: 4; plug-in clamping spring: 41; plug-in spring: 411; plug-in protrusion: 412; plug-in elastic piece: 413; plug-in fixing piece: 414; busbar: 415; plug-in clamp: 417; plug-in groove: 418; pin head: 42; plug-in connector: 42; expansion joint: 431;

[0105] Upper cover: 5; rotation axis: 51; upper cover wall: 52; insertion hole 521; upper cover side wall 53; upper cover groove 531; reinforcing rib 532; wire clamp 54; connecting section 541; cantilever section 542; upper cover card interface 55; ridge 56;

[0106] Lower seat: 6; fixed arm: 61; lower seat base 62; lower seat insertion hole: 621; two lower seat side walls: 63; anti-slip grooves 65; fastener 66; clamp 67; screw matching hole: 68;

[0107] Connector gland: 7; Connector connection portion: 71; Raised ring: 712; Raised rib: 714; Hook: 717; Anti-slip strip: 718; Connector socket: 72; Second connecting surface: 73; Connector top slot: 721; Connector positioning plate: 724; Second connecting surface: 73; Connector bottom slot: 722; Cantilevered fastener: 716; Connector test port: 74; Lower connector slot: 75; Connector socket slot: 76; Connector side slot: 761; Connector bottom slot: 762; Connector slot: 763;

[0108] Connector clamping device: 8; latch sleeve: 83; connector clamping spring: 81; connector spring: 811; connector protrusion: 812; connector elastic piece: 813; connector fixing piece: 814; rear connector metal sheet: 815; connector groove: 818; connector connecting piece: 82; limiting lug: 831; non-through expansion joint: 833. DETAILED DESCRIPTION

[0109] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0110] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0111] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0112] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0113] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0114] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0115] Example 1

[0116] like Figure 1-Figure 28 As shown, the present invention provides a plug connector 100, including a first connection terminal 200 and a second connection terminal 300. The first connection terminal 200 is provided with a first wire entry hole 210 and a first opening 220. The first opening 220 is provided with a plug-in cover 1 for closing the first opening 220. The plug-in cover 1 has a plug-in connection portion 11 extending along the first wire entry direction. The second connection terminal 300 is provided with a second wire entry hole 210' and a second opening 220'. The second opening 220' is provided with a connector cover 7 for closing the second opening 220'. The connector cover 7 has a connector connection portion 71 extending along the second wire entry direction. The plug-in cover 1 and the connector cover 7 are made of insulating material. The first wire entry hole 210' and the second wire entry hole 220' are arranged opposite each other. The plug-in connection portion 11 and the connector connection portion 71 cooperate with each other to achieve a detachable connection between the first connection terminal 200 and the second connection terminal 300.

[0117] like Figure 6-Figure 9 As shown, in the above solution, by providing the first connection terminal 200 and the second connection terminal 300, at least two wires can be connected to the wire accommodating cavities of the first connection terminal 200 and the second connection terminal 300 through the first wire entry hole 210 and the second wire entry hole 220'. The first connection terminal 200 and the second connection terminal 300 can be detachably connected through the plug-in connection portion 11 and the connector connection portion 71, thereby achieving electrical connection between the at least two wires. The plug-in gland 1 and the connector gland 7 cooperate with each other to prevent the mis-insertion of wires.

[0118] In this embodiment, the plug-in pressure cover 1 includes a plug-in cover body, which includes a plug-in socket 12 and a plug-in connecting portion 11. The plug-in socket 12 is fixedly installed at the first opening 220. The plug-in socket 12 includes a top surface and a first connecting surface 13 connected to the front end of the top surface. The first connecting surface 13 is provided with a through hole corresponding to the first wire entry hole 210. The plug-in connecting portion 11 is provided at the through hole of the first connecting surface 13. The plug-in connecting portion 11 is roughly a hollow cylindrical structure and is connected to the first wire entry hole through the through hole on the first connecting surface 13; the connector pressure cover 7 is fixedly installed at the second opening 220'. The connector socket 72 includes a top surface and a second connecting surface 73 connected to the front end of the top surface. The second connecting surface 73 is provided with a through hole corresponding to the second wire entry hole 210'. The plug-in connecting portion 71 is provided at the through hole of the second connecting surface 73. The connector connecting portion 71 is roughly a hollow cylindrical structure and is connected to the second wire entry hole 210' through the through hole of the second connecting surface 73.

[0119] In the above embodiment, the plug-in gland 1 and the connector gland 7 are provided with a locking mechanism to secure the connection between the plug-in connector 11 and the connector connector 71. Specifically, the plug-in connector 11 may be, but is not limited to, a hollow cylindrical structure. The plug-in connector 11 may be a hollow cylinder or other shape that is convenient for installation with the connector connector 71, such as a cylindrical structure with a non-circular cross-section. Furthermore, the locking mechanism may include, but is not limited to, one or more ribs 714 extending along the length of the connector connector 71 on the outer wall of the connector connector 71, and a groove 112 provided on the plug-in connector 11 to cooperate with the ribs 714. The connector connector 71 is inserted into the plug-in connector 11, and the locking mechanism cooperates to make the installation of the plug-in gland 1 and the connector gland 7 more secure.

[0120] In the above embodiment, the plug-in connector 11 and the connector 71 are further secured together by a snap-fit ​​assembly. Specifically, the snap-fit ​​assembly may include, but is not limited to, a cantilevered latch 716 extending from the second connection surface 73 in the direction of the second incoming cable, and a snap-fit ​​notch 116 located on the upper portion of the plug-in connector 11. When the first connection terminal 200 and the second connection terminal 300 are plugged in and mated, the cantilevered latch 716 snaps and secures to the snap-fit ​​notch 116. The provision of the snap-fit ​​assembly further secures the connection between the plug-in connector 11 and the connector 71 and effectively prevents mis-insertion.

[0121] Furthermore, the extended end of the cantilevered latch 716 is provided with an upwardly protruding hook 717, which is engaged with the latching slot 116. Furthermore, the hook 717 is provided with an anti-slip strip 718, which provides a clear fulcrum when unlocking the plug-in connector 100 and also serves as an anti-slip function, making it easy to use. Preferably, a protrusion is further provided on the plug-in connector 11 near the latching slot 116. The protrusion is positioned so that when the cantilevered latch 716 passes through the latching slot 116, the hook 717 prevents the cantilevered latch 716 from disengaging from the latching slot 116. Furthermore, the protrusion is located below the hook 717 to prevent the hook 717 from being pressed due to misoperation, causing the cantilevered latch 716 to disengage from the latching slot 116.

[0122] like Figure 10-13 As shown, in this embodiment, the first connection terminal 200 also includes a first connection terminal housing 2, which is assembled from left to right to form a first housing with the plug-in cover 1 at the first opening 220. The second connection terminal 300 also includes a second connection terminal housing 2', which is assembled from left to right to form a second housing with the connector cover 7 at the second opening 220'. One end of the first connection terminal housing 2 is a first wire entry hole 210, and the other end is connected to the plug-in socket 12 through the first opening 220. One end of the second connection terminal housing 2' is a second wire entry hole 210', and the other end is connected to the connector socket 72 through the second opening 220'. Specifically, the first connection terminal housing 2 and the second connection terminal housing 2' have the same structure.

[0123] In the above embodiment, the top of the first connection terminal housing 2 is a first plug-in board assembly 22 extending from the top of the first wire entry hole 210 to the rear end of the first connection terminal housing 2. The first plug-in board assembly 22 includes at least two first plug-in boards 221. One end of the first plug-in board 221 is fixed to the top of the first wire entry hole 210 to form a whole, and the other end of the first plug-in board 221 is inserted into the plug-in cover 1 to form an installation and fixation.

[0124] The top of the second connection terminal housing 2' is a second plugboard assembly 22' extending from the top of the second wire entry hole 210' to the rear end of the second connection terminal housing 2'. The second plugboard assembly 22' includes at least two second plugboards 221'. One end of the second plugboard 221 is fixed to the top of the second wire entry hole 210' to form a whole, and the other end of the second plugboard 22' is inserted into the connector cover 7 to form a fixed installation. Furthermore, the upper portion of the plug-in socket 12 is provided with a plug-in slot 163 that mates with the insertion end of the first plugboard 221, and the upper portion of the connector socket 72 is provided with a connector slot 763 that mates with the insertion end of the second plugboard 221'. The installation and fixation of the first plugboard 221 with the plug-in slot 163, the connector slot 763, and the second plugboard 221' can be, but is not limited to, plug-in fixation, adhesive fixation, ultrasonic welding fixation, or snap-on fixation.

[0125] In the above embodiment, the first connection terminal housing 2 is connected to the plug-in socket 12 via the first snap assembly; and / or the second connection terminal housing 2 ′ is connected to the connector socket 72 via the second snap assembly. Further, the first snap assembly includes a first bottom snap-fitting head 24 provided on the bottom surface of the first connecting terminal housing 2 and protruding, a first bottom snap-fitting slot 122 provided on the bottom of the plug-in socket 12 and engaged with the first bottom snap-fitting head 24; and / or, a first top snap-fitting head 23 provided on the top surface of the first plug-in board 221 and protruding, a plug-in top snap-fitting slot 121 provided on the top of the plug-in socket 12 and engaged with the first top snap-fitting head 23; and the second snap-fitting assembly includes a second bottom snap-fitting head 24' provided on the bottom surface of the second connecting terminal housing 2' and protruding, a connector bottom snap-fitting slot 722 provided on the bottom of the connector socket 72 and engaged with the second bottom snap-fitting head 24'; and / or, a second top snap-fitting head 23' provided on the top surface of the second plug-in board 221' and protruding, a connector top snap-fitting slot 721 provided on the top of the connector socket 72 and engaged with the second top snap-fitting head 23' of the connector. Specifically, the first plugboard 221 is inserted into the plug slot 163, the second plugboard 221' is inserted into the connector slot 763, the plug cover 1 and the first connection terminal housing 2, the connector cover 7 and the second connection terminal housing 2' are connected and then fixed and fastened.

[0126] In this embodiment, a first engaging portion 251 is provided on the first side surface 25 of the first connection terminal housing 2, and a second engaging portion 261 matching the first engaging portion 251 is provided on the second side surface 26 of the first connection terminal housing 2 opposite the first side surface 25. The first engaging portion 251 or the second engaging portion 261 of the first connection terminal housing 2 is configured to be detachably coupled to the second engaging portion 261 or the first engaging portion 251 of another first connection terminal housing 2, thereby connecting the first connection terminal housing 2 and the other first connection terminal housing 2 in parallel. The second connection terminal housing 2' has the same structure as the first connection terminal housing 2.

[0127] In this embodiment, a third combining portion 251' is provided on the third side surface 25' of the second connecting terminal housing 2', and a fourth combining portion 261' matching the third combining portion 251' is provided on the fourth side surface 26' of the second connecting terminal housing 2' opposite to the third side surface 25'. The third combining portion 251' or the fourth combining portion 261' of the second connecting terminal housing 2' is configured to be detachably combined with the third combining portion 261' or the fourth combining portion 251' of another second connecting terminal housing 2', thereby connecting the second connecting terminal housing 2' and the another second connecting terminal housing 2' in parallel.

[0128] In the above embodiment, the first coupling portion 251 includes a first protrusion 252 protruding from the first side surface parallel to the insertion direction, and the first protrusion 252 is U-shaped; the second coupling portion 252 includes a second groove 262 recessed in the second side surface parallel to the insertion direction, and the first protrusion can be inserted into the second groove 262 of another connecting terminal housing.

[0129] like Figures 9-13 As shown, in this embodiment, the first connection terminal 200 also includes a plug-in clamping device 4, which is installed in the space formed between the plug-in cover 1 and the first connection terminal housing 2, and the plug-in clamping device 4 includes a plug-in clamping spring 41, a plug-in connector 42 and a plug head 43 connected in sequence; the plug-in clamping spring 41 cooperates with the first wire entry hole 210 to form a first clamping interface; and the second connection terminal 300 also includes a connector clamping device 8, which is installed in the space formed between the connector cover 7 and the second connection terminal housing, and the connector clamping device 8 includes a connector clamping spring 81, a connector connector 82 and a plug sleeve 83 connected in sequence, and the connector clamping spring 81 cooperates with the second wire entry hole 210' to form a second clamping interface; when the first connection terminal 200 is docked with the second connection terminal 300, the plug head 42 is plugged into and matched with the plug sleeve 83 to achieve a detachable connection between the first connection terminal 200 and the second connection terminal 300. Specifically, the plug-in clamping device 4 and the connector clamping device 8 are made of conductive metal materials. At least two wires enter the plug connector from the first wire entry hole 210 and the second wire entry hole 210' respectively, and abut against the first clamping interface and the second clamping interface. The pin head 42 and the pin sleeve 83 are plugged into each other, and then the two wires are in a conductive state, so that shorter wires can also be connected through the plug connector.

[0130] In the above embodiment, the connection method of the plug-in clamping spring 41, the plug-in connector 42 and the plug head 43 can be various. For example, the plug-in clamping spring 41, the plug-in connector 42 and the plug head 43 can be integrally formed, or the plug-in connector 42 and the plug head 43 can be integrally formed. Optionally, the plug-in clamping spring, the plug-in connector 42 and the plug head 42 can also be fixed by welding, bonding, etc., which is not limited in this embodiment of the patent. It is understandable that the integral molding method can improve the connection strength of the plug-in clamping device 4, so that the overall structural strength of the first connection terminal 200 is higher.

[0131] In the above embodiment, the connection method of the connector clamping spring 81, the connector connector 82 and the latch sleeve 83 can be various. For example, the connector clamping spring 81, the connector connector 82 and the latch sleeve 83 can be integrally formed, or the connector connector 82 and the latch sleeve 83 can be integrally formed. Optionally, the connector clamping spring 81, the connector connector 82 and the latch sleeve 83 can also be fixed by welding, bonding, etc., which is not limited in the embodiment of this patent. It can be understood that the integral molding method can improve the connection strength of the connector clamping device 8, so that the overall structural strength of the second connection terminal 200 is higher.

[0132] In the above embodiment, the plug-in clamping spring 4 includes a front plug-in metal sheet 413 and a plug-in bus 415. The front plug-in metal sheet includes two plug-in elastic sheets 413 arranged side by side and a plug-in fixing sheet 414 connecting the two plug-in elastic sheets 413 together, and one side of the plug-in elastic sheet 413 is connected to the plug-in fixing sheet 414; the bus is in an inverted Z shape, and the bottom 417 of the plug-in bus is fixedly connected to the bottom of the front connecting piece metal sheet. A sheet-shaped plug-in protrusion 412 protrudes from the top of the plug-in bus. The plug-in spring sheet is generally V-shaped, including a fixed edge 414 and a resting edge 411. The fixed edge 414 of the front plug-in metal sheet is located at the bottom of the plug-in bus and is in close contact with the bottom of the bottom 417 of the plug-in bus; preferably, the plug-in elastic sheet 413 is connected to one end of the plug-in connector 42 upward through an arc surface or an elastic bow. The upper end of the plug-in elastic sheet 413 is provided with a plug-in groove 418, and the plug-in groove 418 is provided on both sides of the plug-in elastic sheet 413 to facilitate the placement of the de-line device 3.

[0133] In the above embodiment, the connector clamping spring 8 includes a front connector metal sheet 813 and a connector bus 815. The front connector metal sheet includes two connector elastic sheets 813 arranged side by side and a connector fixing sheet 814 connecting the two connector elastic sheets 813 together. One side of the connector elastic sheet 813 is connected to the connector fixing sheet 814. The bus is in an inverted Z shape. The bottom 817 of the connector bus is fixedly connected to the bottom of the front connector metal sheet. The top of the connector bus has a sheet-like connector protrusion 812 protruding from it. The connector spring piece is generally V-shaped, including a fixed edge 818 and abutting edge 811. The fixed edge 814 of the front connector metal sheet is located at the bottom of the connector bus and is in close contact with the bottom 817 of the connector bus; preferably, the connector elastic piece 813 is upwardly connected to one end of the connector connector 82 through an arc-shaped surface or an elastic bow. A connector groove 818 is provided at the upper end of the connector elastic piece 813, and the connector groove 818 is provided on both sides of the connector elastic piece 813 to facilitate the placement of the de-line device 3'.

[0134] In the above embodiment, the plug-in connector 42 can be but is not limited to a trapezoidal sheet structure to connect the bus and the pin head 42, the plug-in connector 42 and the bus can be integrally formed, and the connector connector 82 can be but is not limited to a trapezoidal sheet structure to connect the rear connector metal sheet 815 and the pin sleeve 83.

[0135] In the above embodiment, the sidewall of the latch sleeve 83 is provided with a limiting lug 831. Optionally, the limiting lug 831 can be stacked and arranged on both sides of the sidewall of the latch sleeve 83, and the limiting lug 831 can enhance the plugging and unplugging force of the plug connector.

[0136] In the above embodiment, in order to facilitate expansion and contraction when plugging and unplugging the latch head 42, the latch sleeve 83 is provided with an expansion joint 832 which does not penetrate the sheath wall, so that the latch sleeve 83 is more elastic. Further, the latch sleeve 83 may be, but is not limited to, a hollow structure.

[0137] In the above embodiment, the latch head 42 may be, but is not limited to, a cylindrical latch. An expansion joint 431 is provided on the upper portion of the latch head 42. The width of the expansion joint 431 gradually narrows toward the latch opening, thereby providing the latch head 42 with elasticity, ensuring flexibility and elasticity during connection of the latch connector and preventing deformation during installation. Of course, both the latch head 42 and the latch sleeve 83 can be designed without any cracks or slots, and still maintain elasticity.

[0138] like Figures 18-21The first connection terminal 200 and the second connection terminal 300 also include a de-line device, which includes a first de-line device 3 and a second de-line device 3'. One end of the first de-line device 3 extends into the first housing to squeeze the plug-in clamping spring to open or close the first clamping interface, and the other end of the first de-line device 3 extends out of the first housing; and one end of the second de-line device 3' extends into the second housing to squeeze the plug-in clamping spring to open or close the second clamping interface, and the other end of the second de-line device 3' extends out of the second housing. The first de-line device 3 and the second de-line device 3' have the same structure.

[0139] In the above embodiment, the first de-line device includes a first connecting arm 31 and two opposite first support arms 32 connected to the first connecting arm 31. One end of the first support arm 32 is connected to the first connecting arm 31, and the other end of the first support arm 32 is a free end and extends into the first connecting terminal housing 2 to squeeze the plug-in clamping spring 41. The end position of the first connecting arm 31 is provided with anti-slip grooves, which facilitates manual operation and allows the first de-line device to be easily moved or lifted to rotate. Preferably, the front ends of the first connecting arm 31 can also be tightened inward. The bottom of the support wall is similar to a triangle, and a protruding first support portion 34 similar to a triangle is provided on the inner side of the support wall, and a second support portion 35 is provided on the upper part of the first support portion 34. The first support portion 34 cooperates with the plug-in groove 418 of the plug-in elastic sheet 413, and the second support portion 35 contacts the flanges on both sides of the first plug-in board 221.

[0140] When the clamping interface of the plug-in clamping device 4 is in the closed position, the first connecting arm 31 of the first disconnecting device is in a horizontal or nearly horizontal state. When the first connecting arm 31 of the first disconnecting device is moved, the first supporting portion 34 contacts the plug-in groove 418 of the plug-in elastic sheet 413, and the second supporting portion 35 contacts the flanges on both sides of the first plug plate 221. As the anti-detachment device rotates, the first supporting portion 34 gradually squeezes the elastic sheet and further opens the clamping interface. When the plug connector is in the open position, the first supporting portion 34 contacts the plug-in groove 418.

[0141] In the above embodiment, the de-line device 3' includes a second connecting arm 31' and two opposite second support arms 32' connected to the second connecting arm 31'. One end of the second support arm 32' is connected to the second connecting arm 31', and the other end of the second support arm 32' is a free end and extends into the second connecting terminal housing 2' to squeeze the connector clamping spring 81. The end position of the second connecting arm 31' is provided with anti-slip grooves, which facilitates manual operation and allows the de-line device 3' to be easily moved or lifted to rotate. Preferably, the front ends of the second connecting arm 31' can also be tightened inward. The bottom of the support wall is similar to a triangle, and a protruding third support portion 34' similar to a triangle is provided on the inner side of the support wall, and a fourth support portion 35' is provided on the upper part of the third support portion 34'. The third support portion 34' cooperates with the connector groove 818 of the connector elastic sheet 813, and the fourth support portion 35' contacts the flanges on both sides of the second plug plate 221'.

[0142] When the clamping interface of the connector clamping device 8 is in the closed position, the second connecting arm 31' of the off-line device 3' is in a horizontal state or a nearly horizontal state. When the second connecting arm 31' of the off-line device 3' is toggled, the third supporting portion 34' contacts the connector groove 818 of the connector elastic sheet 813, and the fourth supporting portion 35' contacts the flange. As the anti-slip device rotates, the third supporting portion 34' gradually squeezes the elastic sheet and further opens the clamping interface. When the plug connector is in the open position, the third supporting portion 34' contacts the connector groove 818.

[0143] In this embodiment, the plug-in gland 1 is provided with a plug-in test port 14, and / or the connector cover is provided with at least one connector test port 74. Furthermore, the plug-in test port 14 and the connector test port 74 can be provided on the upper portion of the plug-in socket 12 to facilitate testing of electrical conductivity.

[0144] like Figure 22-Figure 25 As shown, in this embodiment, the plug connector also includes a wire protection box 400, which includes an upper cover 5 and a lower seat 6. The upper cover 5 is hinged on the lower seat 6. Furthermore, the wire protection box is larger than the first connecting terminal 200 and the second connecting terminal 300. The first connecting terminal 200 and the second connecting terminal 300 are respectively installed in the two wire protection boxes to protect the wires.

[0145] like Figure 22-25 As described above, a positioning space 410 is formed between the lower seat 6 and the upper cover 5 for positioning the first connecting terminal 200 or the second connecting terminal 300, and a fitting groove 420 is provided in front of the positioning space 410 for exposing the plug-in connecting portion or the connector connecting portion of the first connecting terminal 200 or the second connecting terminal 300, and a through hole 430 is provided behind the positioning space 410 for allowing the wire to pass through and extend to the outside.

[0146] In the above embodiment, the plug-in cover 1 also includes a plug-in cover card slot 15 set at the end of the plug-in socket, and the connector cover 7 also includes a connector cover card slot 75 set at the end of the connector socket. The upper cover 5 includes an upper cover wall 52 and two upper cover side walls 53 connected to the upper cover wall 52. The front section of the upper cover side wall 53 is provided with an upper cover groove 531 for placing the first connecting terminal 200 / the second connecting terminal 300. The front end of the upper cover groove 531 is provided with an upper cover card interface 55 that cooperates with the plug-in cover card slot 15 or the connector cover card slot 75. The inner side of the upper cover wall 52 is provided with a ridge 56 connected to the two upper cover side walls 53. The ridge 56 is used to position the first connecting terminal 200 or the second connecting terminal 300.

[0147] In the above embodiment, the rear side of the upper cover wall 52 is provided with an insertion hole 521, to which a wire clamp 54 is fixedly connected. The wire clamp 54 comprises a connecting section 541 and a cantilever section 542. The connecting section 541 is fixed to the upper cover wall behind the insertion hole 521, while the cantilever section 542 extends into the upper cover groove 531 and is deformable and configured to elastically abut a wire inserted into the through hole 430. It will be appreciated that the cantilever section 52 has elasticity, and thus can clamp wires of different sizes by its own elasticity.

[0148] In the above embodiment, the cantilever section 542 is bent. Specifically, after extending, the cantilever section 542 bends in the direction of wire insertion to abut against the wire. It should be noted that the bent cantilever section not only increases the strength of the wire clamp 54 but also provides a more stable fixation for the wire inserted into the wire protection box.

[0149] In this embodiment, rotating shafts 51 are provided on both sides of the front end of the upper cover 5, and fixed arms 61 are provided on both sides of the front end of the lower base 6 for use with the rotating shafts 51. Specifically, the rotating shafts 51 are snap-connected to the fixed arms. When the upper cover 5 is open, the wire protection box 400 can be installed with the first connecting terminal 200 or the second connecting terminal 300; when the upper cover 5 is closed, the wire protection box 400 snaps the first connecting terminal 200 or the second connecting terminal 300 into the wire protection box 400. Preferably, a straight-line locking pin can be provided at the end of the rotating shaft 51. When the wire protection box 400 is open, this facilitates the installation of the first connecting terminal 200 or the second connecting terminal 300. When the upper cover 5 is closed, the wire protection box 400 further ensures the stability and safety of the first connecting terminal 200 or the second connecting terminal 300 during use.

[0150] In this embodiment, the lower seat 6 includes a lower seat base 62 and two lower seat side walls 63 connected to the lower seat base 62. The front end of the lower seat side wall 63 is provided with a lower seat groove 631 for placing the first connecting terminal 200 / the second connecting terminal 300. The middle part of the lower seat base 62 is provided with a lower seat socket 621. The lower seat socket is provided with an elastically deformable latch 66. When the first connecting terminal 200 / the second connecting terminal 300 is inserted into the lower seat groove 631, the latch 66 is used to clamp the first connecting terminal 200 / the second connecting terminal 300 to position it to prevent the first connecting terminal 200 / the second connecting terminal 300 from moving.

[0151] In this embodiment, the cable protection box 400 includes a snap assembly, which includes a clip 67 disposed at the rear end of the lower seat 6. The clip 67 is a longitudinally arranged strip plate structure that extends upward from the lower seat base 62 along the lower seat side wall 63. A snap is provided at the end of the clip 67. The rear end of the upper cover side wall 53 is provided at a position corresponding to the clip, and a snap connection groove 57 is provided to achieve a snap connection with the clip 67. It can be understood that the snap assembly can make the cable protection box more secure when used.

[0152] The connection between the clamp 67 and the lower seat base 62 is provided with two racks that pass through the lower seat base 62 transversely. When the upper cover and the lower seat are closed, the racks can facilitate the fixation of the wires.

[0153] In this embodiment, anti-skid grooves 65 are provided on the outer side of the lower seat side wall 63. The anti-skid grooves 65 can play an anti-skid role during installation and use.

[0154] As a preferred embodiment, the connection terminals described in Embodiment 1 can be connected in parallel in multiple numbers to form a multi-port connection terminal block for use.

[0155] Example 2

[0156] This embodiment uses the same components, connection methods and structural descriptions as Example 1, and the descriptions are not repeated here.

[0157] like Figures 29-30 As shown, this embodiment improves the disconnection device 3 of the plug connector. The disconnection device 3 of this embodiment also includes a connecting arm 31, two side-by-side support arms 32 connected to the connecting arm 31, and a connecting arm 37 connected to the connecting arm 31 and located between the support wall 32. The support arm 32 and the connecting arm 37 form two accommodating areas 33. It will be understood that the disconnection device 3 in this embodiment is a conjoined structure, that is, a single disconnection device 3 can simultaneously open or close multiple plug-in clamping devices and / or connector clamping devices, simplifying operation.

[0158] Example 3

[0159] This embodiment uses the same components, connection methods and structural descriptions as Example 1, and the descriptions are not repeated here.

[0160] like Figures 31-40 As shown, this embodiment improves the wire protection box 400, and a positioning space 410 is formed between the lower seat 6 and the upper cover 5 for positioning at least two first connection terminals 200 or at least two second connection terminals 300, and at the front of the positioning space 410, at least two engaging grooves 420 are provided for exposing the plug-in connection part and the connector connection part of the first connection terminal 200 or the second connection terminal 300, and at the rear of the positioning space 410, at least two through holes 430 are provided for allowing the wires to pass through and extend to the outside. Specifically, the first connection terminal 200 and the second connection terminal 300 are respectively installed in two wire protection boxes so as to be used in different places. This embodiment can use the first and second combining parts to allow a plug-in connector in Example 1 to be connected in parallel with the plug-in connector of this embodiment to form a multi-port connection terminal block.

[0161] In this embodiment, at least one reinforcing rib 532 is provided on the inner side of the upper cover side wall 53 and / or at least one reinforcing rib 632 is provided on the lower seat side wall 63. The reinforcing ribs can strengthen the side walls of the upper cover 5 and the lower seat 6, thereby reducing the degree of deformation of the wire protection box during use.

[0162] In this embodiment, the upper cover 5 and the lower seat 6 can also be connected by screws. Specifically, a screw hole 58 is provided at the end of the upper cover wall 52, and a screw matching hole 68 is provided at the corresponding position of the lower seat base 62, so that the wire protection box can be reinforced with screws.

[0163] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0164] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of the present utility model patent shall be determined by the appended claims.

Claims

1. A plug connector, comprising a first connecting terminal and a second connecting terminal, characterized in that: The first connecting terminal is provided with a first wire entry hole and a first opening, a plug-in cover is provided at the first opening, and the plug-in cover is provided with a plug-in connection portion extending along the first wire entry direction, the plug-in connection portion is a hollow structure and communicates with the first wire entry hole, and a plug-in clamping device is provided in the first connecting terminal, the plug-in clamping device includes a plug-in clamping spring and a first contact connected to the plug-in clamping spring, and the first contact extends into the plug-in connection portion; The second connecting terminal is provided with a second wire entry hole and a second opening, the second opening is provided with a connector cover, the connector cover is provided with a connector connection portion that can be plugged into the plug-in connection portion; the second connecting terminal is provided with a connector clamping device, the connector clamping device includes a connector clamping spring and a second contact connected to the connector clamping spring, and the second contact extends into the connector connection portion; The first connecting terminal and / or the second connecting terminal is provided with a disconnecting device, and the disconnecting device is used to open or close the plug-in clamping device and / or the connector clamping device; The plug-in connection portion and the connector connection portion can be plug-connected. When the plug-in connection portion and the connector connection portion are plugged together, the first contact and the second contact are electrically connected.

2. The plug connector according to claim 1, characterized in that The plug-in gland includes a plug-in socket and the plug-in connection portion, the plug-in socket is fixedly installed at the first opening, the plug-in socket includes a top surface and a first connection surface connected to the front end of the top surface, and the plug-in connection portion is formed on the first connection surface; and / or The connector pressing cover includes a connector socket and the connector connecting portion. The connector socket is fixedly installed at the second opening. The connector socket includes a top surface and a second connecting surface connected to the front end of the top surface. The connector connecting portion is formed on the second connecting surface.

3. The plug connector according to claim 1, characterized in that The plug-in cover and / or the connector cover are provided with a locking mechanism to fix the connection state of the plug-in connection part and the connector connection part.

4. The plug connector according to claim 2, characterized in that The installation and fixation of the plug-in connection portion and the connector connection portion are also fixed by snapping together with a snap-fit ​​assembly.

5. The plug connector according to claim 4, characterized in that The snap-on assembly includes a cantilevered latch provided on the second connecting surface and extending in the second incoming line direction, and a latching slot provided on the plug-in connecting portion. When the first connecting terminal is plugged and paired with the second connecting terminal, the cantilevered latch is latched and fixed to the latching slot.

6. The plug connector according to claim 5, characterized in that An extending end of the cantilevered fastening member is provided with an upwardly protruding hook portion, and the hook portion is clamped in the fastening slot.

7. The plug connector according to claim 1, characterized in that The first connection terminal further includes a first connection terminal housing, which is assembled with the plug-in cover at the first opening to form a first shell, and at least one accommodating channel is formed in the first shell; and / or The second connecting terminal further comprises a second connecting terminal housing, which is assembled left and right together to form a second shell with the connector cover at the second opening. At least one accommodating channel is formed in the second shell and passes through the second shell.

8. The plug connector according to claim 7, characterized in that A first coupling portion is provided on a first side wall of the first connection terminal housing, and a second coupling portion matching the first coupling portion is provided on a second side wall of the connection terminal housing opposite to the first side wall, wherein the first coupling portion or the second coupling portion of the first connection terminal housing is configured to be detachably coupled to the second coupling portion or the first coupling portion of another first connection terminal housing, thereby connecting the connection terminal housing and the other connection terminal housing in parallel; and / or A third combining portion is provided on the third side surface of the second connecting terminal housing, and a fourth combining portion matching the third combining portion is provided on the fourth side surface of the second connecting terminal housing opposite to the third side surface. The third combining portion or the fourth combining portion of the second connecting terminal housing is configured to be detachably combined with the third combining portion or the fourth combining portion of another second connecting terminal housing.

9. The plug connector according to claim 8, characterized in that The first combining portion includes a first protrusion protruding from the first side wall; the second combining portion includes a second groove recessed into the second side wall, and the first protrusion can be inserted into the second groove of another connecting terminal housing.

10. The plug connector according to claim 1, characterized in that The second contact is a plug sleeve with a sleeve-like structure, and the first contact is a plug head that can be inserted into the plug sleeve to achieve electrical connection with the plug sleeve.

11. The plug connector according to claim 10, characterized in that The side wall of the latch sleeve is provided with a limiting lug.

12. The plug connector according to claim 10, characterized in that The latch sleeve and / or the latch head are provided with an expansion joint.

13. The plug connector according to claim 1, characterized in that The plug connector also includes an upper cover and a lower seat, and the upper cover and the lower seat are assembled to form a wire protection box; the first connecting terminal and / or the second connecting terminal are installed in the space formed between the upper cover and the lower seat.

14. The plug connector according to claim 13, characterized in that The upper cover comprises an upper cover wall, the upper cover wall is provided with an insertion hole, a wire clamp is fixedly connected to the insertion hole, and the wire clamp is provided with an elastic cantilever section.

15. The plug connector according to claim 13, characterized in that A positioning space for positioning the first connecting terminal or the second connecting terminal is formed between the lower seat and the upper cover, and a fitting groove for exposing the plug-in connecting portion or the connector connecting portion of the first connecting terminal or the second connecting terminal is provided in front of the positioning space, and a through hole for allowing the wire to pass through and extend to the outside is provided behind the positioning space.

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