CN2184992Y - Self locking plug-in connetor - Google Patents

Abstract

The utility model discloses a self-locking plug-in connector, comprising a plug and a plug chip, wherein, the plug is improved. The center of the bottom of the flat groove of a flat C-shaped jack is convexly provided with a flexible tongue which is provided with a triangular non-return block buckle which can be locked in the matching acupoint hole of the plug chip to result in a self-locking mechanism. The utility model has the advantages of convenience, little resistance, anti vibration, larger pulling capacity and reliable work. When the utility model needs switching off, so long as the push post arranged on the head end of the flexible tongue is pressed slightly, the plug chip can be taken out, and the operation is vary convenient.

Description

Self locking plug-in connetor

The utility model discloses the connector that a kind of electric wiring connects, especially a kind of self-locking connector.It belongs to the electric component technical field.

Commercially available electric wire connections mostly is low self-locking connector.This connector is to be inserted in the plug mouth by interposer chip, relies on protruding sphere lock in spherical cavity hole and the plug mouth on the interposer chip incompatible the preventing that match to get loose between interposer chip and the plug mouth.This self-locking structure can not be too much the design of the pulling capacity between interposer chip and the plug mouth, in order to avoid make interposer chip when injecting or extracting, and unlikely too difficulty.Therefore the suffered elastic force pressure of protruding sphere lock point of this structure can not be excessive.Combine also just insecurely between interposer chip and the plug mouth like this, when chance is haled pull out force, patch and cooperate the unfavorable uncoupling accident that causes.The self-locking property of this connector is low, and its connection reliability, fastness are all poor, and is extremely to be solved.

The purpose of this utility model is exactly to solve line stretcher spare connection reliability, the relatively poor problem of fastness.Design a kind of high self-locking connector, this connector will have and inserts smoothly conveniently, and resistance is little, but not during the normal vibration drawing, the tight more lock of drawing makes two terminated lines have good contact more.Yet when needs switched connector lug, this connector can take off lock again automatically, makes interposer chip can easily successfully withdraw from socket.

Task of the present utility model is that following technical scheme realizes: developed a kind of self-locking connector.This connector also includes: plug and interposer chip.Wherein plug is made up of the socket that the end of a thread fixed claw and cross section are flat " C " shape.The central part place, the end that rises as high as the banks at this socket is raised with a slice flexible tongue.Having triangle non-return retaining on this tongue central panel face buckles.This retaining is buckled in the hole, coupling cave that can be locked on the interposer chip, makes the socket at tongue place and interposer chip snap close closely firm, stands strong vibration or hales and pull out that also not take off lock loosening, constitutes the good connector of contact.The head end of this tongue perk is also established by compression leg.This compression leg leans out outside the socket groove, uses when lock withdraws from interposer chip for taking off, and to pressing down, just can make triangle non-return retaining buckle the hole, cave that breaks away from the interposer chip this compression leg, thereby the socket of interposer chip and plug is broken away from, and this interposer chip can be extracted and be withdrawed from socket.The flexible tongue of this connector is the bottom of rising as high as the banks from socket, with the inclined-plane form or with the arch bridge form gradually perk to flat " C " shape notch end place, leaning out outside the socket groove on this tongue head end of perk by compression leg, and the triangle non-return on this tongue retaining top be near flat " C " shape notch edge, cause enough big elastic force, interposer chip and socket are patched cooperate closely and not loosening.The end of a thread fixed claw of this connector, it can be vertical connection with the lead that is connected.Admittedly be stuck on the wire sheath by curved the wrapping up in of the fastening pawl that has several recessed, weld or be pressed on the termination of lead by the welding pawl again.This end of a thread fixed claw can also linearly connect with the lead that is connected.Two relative fastening pawls are bent to wrap up in in the other direction separately and are blocked wire sheath admittedly, and the welding pawl by fastening pawl front welds or be pressed on this lead termination again.Described interposer chip equally also can adopt vertical connected mode or straight line connected mode and wire head to be fixed together by the end of a thread fixed claw.

Self-locking connector of the present utility model owing to taked to have the flexible tongue that triangle non-return retaining is buckled, makes plug of this connector and interposer chip cooperation firm, reliable, and its opposing pulling capacity is more than 3 times of general connector.Again since adopted on the tongue head end by compression leg, if will take off interposer chip, available finger is depressed gently by compression leg, this tongue just can easily successfully break away from interposer chip, and this interposer chip can withdraw from.This connector structure is simple, the self-locking performance height, and vibration resistance is strong, and can take off lock flexibly, and is easy to use, reliable operation.

Accompanying drawings embodiment of the present utility model.As shown in the figure, Fig. 1 is a self-locking connector structure schematic diagram.Have among Fig. 1: interposer chip 1, socket 2 is pressed compression leg 5, hole, cave 6, fastening pawl 7, welding pawl 8.Fig. 2 is the plug plan structure schematic diagram of self-locking connector.Have among Fig. 2: socket 2, flexible tongue 3, non-return retaining button 4 is pressed compression leg 5, fastening pawl 7, welding pawl 8.Fig. 3 is the plug construction end view (rectilinear connection wire head) of self-locking connector.Have among Fig. 3: socket 2, non-return retaining button 4 is pressed compression leg 5, fastening pawl 7, welding pawl 8.Fig. 4 is the plug cutaway view (the B-B view of Fig. 2) of self-locking connector.Have among Fig. 4: flexible tongue 3, non-return retaining button 4 is pressed compression leg 5.Fig. 5 is the structural representation that self-locking connector orthoscopic connects wire head.Have among Fig. 5: interposer chip 1, socket 2 is pressed compression leg 5, welding pawl 9, fastening pawl 10.Fig. 6 is plug (orthoscopic connects wire head) the plan structure schematic diagram of self-locking connector.Have among Fig. 6: socket 2, flexible tongue 3, non-return retaining button 4 is pressed compression leg 5, welding pawl 9, fastening pawl 10.Fig. 7 is plug (orthoscopic connects wire head) portion's view (the A-A view of Fig. 6) of self-locking connector.Have among Fig. 7: flexible tongue 3, non-return retaining button 4 is pressed compression leg 5, welding pawl 9, fastening pawl 10.

Claims (5)

1, a kind of self-locking connector, it includes plug and interposer chip (1), wherein plug is made up of the socket (2) that the end of a thread fixed claw and cross section are flat " C " shape, it is characterized in that: the central part place, the end that rises as high as the banks at this socket (2) is raised with a slice flexible tongue (3), have triangle non-return retaining on this tongue (3) central panel face and buckle (4), this retaining is buckled (4) and can be locked in the hole, coupling cave (6) on the interposer chip (1), and the head end of this tongue (3) perk is provided with by compression leg (5).

2, self-locking connector according to claim 1, it is characterized in that: described flexible tongue (3), its (3) from the bottom of rising as high as the banks of socket (2) with the inclined-plane form, or with the arch bridge form gradually perk to flat " C " shape notch end place, leaning out outside socket (2) groove by compression leg (5) on this tongue (3) head end, the triangle non-return retaining on this tongue (3) is buckled the top near flat " C " shape notch edge of (4).

3, self-locking connector according to claim 1, it is characterized in that: described the end of a thread fixed claw, it is vertical connection with the lead that is connected, and is stuck in admittedly on the wire sheath by curved the wrapping up in of the fastening pawl (7) that has several recessed, welds or compress the lead termination by welding pawl (8) again.

4, self-locking connector according to claim 1, it is characterized in that: described the end of a thread fixed claw, it linearly connects with the lead that is connected, admittedly block wire sheath to curved the wrapping up in of opposite direction separately by two relative fastening pawls (10), the welding pawl (9) by fastening pawl (10) front welds or is pressed on the lead termination again.

5, according to claim 1 and 3 or 4 described self-locking connectors, it is characterized in that: described interposer chip (1), also can pass through the end of a thread fixed claw, and adopt vertical connected mode or straight line connected mode and wire head to be fixed together.

Images