High-reliability rapid push-in type self-locking connector

Abstract

The utility model provides a high-reliability rapid push-in type self-locking connector. The connector comprises a plug and a socket which can be in butt joint with each other. According to the utility model, a push-in type rapid locking structure and a high and low frequency insertion structure are carried. When in use, the external push-in locking structure of the connector body has the advantages of quick locking and reliable connection; a high-frequency coaxial contact element in the connector adopts a multi-groove cantilever beam side contact structure, and a low-frequency contact element adopts a rigid pin and elastic stranded wire pin structure, so that the contact elements can be prevented from being damaged due to rigid contact when a plug and a socket are plugged, and the defects of rigid contact and single signal transmission are effectively overcome; and meanwhile, stable and reliable electric contact can still be ensured in a severe working environment.

Description

Technical Field

[0001] The utility model relates to a highly reliable quick-pushing self-locking connector. Background Art

[0002] As a reliable connection device for cables between electronic devices, the locking methods of connectors on the current market vary. Among them, the locking structures of circular connectors mainly include internal snap-in type, external snap-in type and screw-thread type; in rectangular connectors, the most commonly used locking method is to lock through accessories such as screws. The above locking methods all have certain disadvantages at different levels. The screw-locking structure is simple, but the operation is slow, the efficiency is low and time-consuming during connection; the snap-in locking method has the disadvantages of difficult processing of snap-in grooves and high processing costs; while the screw-thread locking structure cannot achieve quick-pushing connection when the plug and socket are inserted, and the torque required for some threads during the meshing of the connector is also large, causing difficulties in the docking and use of the plug and socket.

[0003] A highly reliable quick-pushing self-locking connector is equipped with a quick-pushing locking structure and a high-low frequency mixed mounting structure that matches it. During use, the external quick-pushing locking structure of the connector body has the advantages of quick locking and reliable connection; the high-frequency coaxial contact parts inside the connector adopt a multi-groove cantilever beam side contact structure, and the low-frequency contact parts adopt a rigid pin and an elastic stranded wire pin structure, which can avoid damage to the contact parts due to rigid contact during the insertion of the plug and socket, effectively overcome the disadvantages of rigid contact and single-signal transmission, and still ensure stable and reliable electrical contact under extremely harsh working environments. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a highly reliable quick-pushing self-locking connector.

[0005] The utility model is realized through the following technical solutions.

[0006] A highly reliable quick-pushing self-locking connector provided by the utility model includes a plug and a socket that can be docked with each other;

[0007] The plug includes a plug base assembly and a locking accessory. A number of low-frequency jacks and a number of high-frequency coaxial jacks are respectively installed at both ends of the plug base assembly. The plug base assembly is installed inside the plug housing, and the docking end is flush with one end of the plug housing. One end of the locking accessory is installed at the other end of the plug housing and contacts the plug base assembly;

[0008] The socket includes a socket base assembly. A number of low-frequency pins and a number of high-frequency coaxial pins are installed inside the socket base assembly. The low-frequency pins and the high-frequency coaxial pins are respectively docked with a number of low-frequency jacks and high-frequency coaxial jacks. The socket base assembly is installed inside the socket housing.

[0009] On both of the two opposite side surfaces at one end of the locking attachment, tail attachment housings are installed. The two sides and the end face of the tail attachment housing extend outside the locking attachment. Two locking members are respectively hinged between the two tail attachment housings on both sides of the locking attachment, and a torsion spring is installed between the locking member and the locking attachment.

[0010] The locking member is integrally formed by stamping, and symmetric rivet mounting holes and torsion spring mounting limit bosses are provided on the left and right sides. A ribbed anti-slip structure is provided on the outer side surface of the tail end, and the locking end is a semi-circular arc structure.

[0011] The socket housing includes an upper housing and a lower housing. The upper housing is fixed on the outer wall of the mating end of the socket base assembly, and the lower housing wraps around the other end of the socket base assembly;

[0012] Connecting plates are fixed to the edges of the opposite openings of the upper housing and the lower housing. At both ends of the connecting plate on the upper housing, a hollow riveting cylinder is respectively processed. Through holes are processed at both ends of the connecting plate on the lower housing corresponding to the hollow riveting cylinders. After the hollow riveting cylinders are turned and riveted, the upper housing and the lower housing are fixed;

[0013] Wedge-shaped boss structures for locking and unlocking symmetrically distributed with the plug locking member are provided at both ends of the mating surface of the upper housing seat.

[0014] Steps are formed on both sides of the inner wall connection of the upper housing and the lower housing, corresponding to the steps on the side wall of the socket base assembly. The socket base assembly includes a third base and a fourth base, and a step is processed on the third base.

[0015] The plug base assembly includes a first base and a second base. Steps that gradually increase are formed on the sides of the first base, the second base, and the locking attachment, corresponding to the steps inside the plug housing. The first threaded hole processed on the side wall of the locking attachment corresponds to the first screw insertion hole processed on the side wall of the plug housing, and a first screw is assembled.

[0016] A triangular groove is also processed on the end face of the first base, corresponding to the triangular boss on the third base. The low-frequency jack is installed within the range of the triangular groove, and the low-frequency pin is installed within the range of the triangular boss.

[0017] The high-frequency coaxial jack includes:

[0018] A first outer conductor, in which a stepped hole is processed, and an annular protrusion is processed on the outer wall;

[0019] A first insulating sleeve, and the outer wall of one end of the first insulating sleeve is processed into a stepped column;

[0020] A center jack rod, with a jack processed at one end and a cable core jack processed at the other end;

[0021] The first insulating sleeve is installed in the small-diameter hole of the stepped hole of the first outer conductor and its end contacts the step, and an insertion cavity is formed between the stepped column at the other end and the inner wall of the first outer conductor. A limiting groove is also machined on the side wall of the insertion cavity;

[0022] The annular protrusion outside the first outer conductor matches the groove formed adjacent to the first base and the second base;

[0023] The central jack rod is installed in the first insulating sleeve, and the end of the jack is on the same plane as the end of the stepped column;

[0024] The high-frequency coaxial pin includes a second insulating sleeve and a second outer conductor:

[0025] The second insulating sleeve is installed in the stepped hole of the second outer conductor, and the central pin is installed in the second insulating sleeve;

[0026] One end of the second outer conductor extends into the insertion cavity, and the extending end is set as a deformed socket. An outer conical surface is machined on the outer wall of the second insulating sleeve to form a reserved gap with the inner wall of the deformed socket;

[0027] The deformed socket is composed of several uniform cantilevers, and a protrusion is also provided at the end of each cantilever to cooperate with the limiting groove.

[0028] Bosses are machined on the outer walls of the low-frequency jack and the low-frequency pin. The end of the low-frequency pin is provided with an elastic stranded wire pin structure to cooperate with the rigid jack provided at the end of the low-frequency jack.

[0029] The left and right sides of the tail attachment housing are in a waist-shaped structure, and locking member installation guide grooves are provided. The width of the installation guide groove is greater than the width of the locking member; Multiple push-pull anti-slip grooves, multiple rivet installation through holes and second threaded holes are provided on the upper and lower outer surfaces of the tail attachment housing, and the tail attachment cover plate is connected and fixed to the second threaded hole by a second screw.

[0030] The beneficial effects of the present utility model are as follows: It is equipped with a push-in type quick locking structure and a high and low frequency insertion structure. When in use, the push-in type locking structure outside the connector body has the advantages of quick locking and reliable connection; the high-frequency coaxial contact in the connector adopts a multi-slot cantilever beam side contact structure, and the low-frequency contact adopts a rigid pin and an elastic stranded wire pin structure, which can avoid damage to the contact parts due to rigid contact during the insertion of the plug and socket, effectively overcome the disadvantages of rigid contact and single signal transmission, and at the same time can still ensure stable and reliable electrical contact under extremely harsh working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic cross-sectional structure diagram of the present utility model;

[0032] Figure 2 is a schematic structure diagram of the locking accessory in the present utility model;

[0033] Figure 3 Schematic diagram of the tail attachment housing structure in the present utility model;

[0034] Figure 4 Schematic diagram of the upper housing structure of the socket in the present utility model;

[0035] Figure 5 Schematic diagram of the locking member structure in the present utility model;

[0036] Figure 6 Schematic diagram of the torsion spring structure in the present utility model;

[0037] Figure 7 Schematic diagram of the third base structure in the present utility model;

[0038] Figure 8 Schematic diagram of the first base structure in the present utility model;

[0039] Figure 9 Partial enlarged view of the separation structure of the high-frequency coaxial contact in the present utility model;

[0040] Figure 10 Partial enlarged view of the mating structure of the high-frequency coaxial contact in the present utility model;

[0041] Figure 11 Partial enlarged view of the separation structure of the low-frequency contact in the present utility model;

[0042] Figure 12 Partial enlarged view of the mating structure of the low-frequency contact in the present utility model;

[0043] Figure 13 Schematic diagram of the tail attachment cover structure in the present utility model;

[0044] Figure 14 Schematic diagram of the plug housing structure in the present utility model;

[0045] In the figure: 1 - plug, 10 - plug housing, 100 - U-shaped lug, 101 - first screw insertion hole, 102 - stepped rectangular groove, 11 - plug base assembly, 110 - high-frequency coaxial jack, 1100 - center jack rod, 1101 - first insulating sleeve, 1102 - first outer conductor, 1103 - mating cavity, 1104 - jack, 1105 - limiting groove, 1106 - limiting boss, 111 - low-frequency jack, 1111 - low-frequency jack limiting protrusion, 112 - second base, 113 - first base, 1130 - triangular groove, 12 - first screw, 13 - elastic washer, 14 - locking accessory, 140 - locking clip, 1400 - rivet installation hole, 1401 - torsion spring installation limiting boss, 1402 - ribbed anti-slip structure, 1403 - semi-circular arc structure, 1404 - screw insertion hole, 141 - torsion spring, 1410 - rivet through hole, 1411 - U-shaped ring, 142 - rivet, 143 - tail attachment housing, 1430 - locking part installation guiding groove, 1431 - first push-pull anti-slip groove, 1432 - rivet installation through hole, 1433 - second threaded hole, 1434 - first threaded hole, 1435 - waist-shaped structure, 1436 - first wire outlet groove, 144 - second screw, 145 - tail attachment cover plate, 1450 - second push-pull anti-slip groove, 1451 - second screw hole, 1452 - second wire outlet groove, 2 - socket, 20 - upper socket housing, 200 - wedge-shaped boss structure, 201 - hollow riveting cylinder, 202 - mounting plate, 21 - lower socket housing, 22 - socket base assembly, 220 - third base, 2200 - triangular boss, 221 - fourth base, 222 - high-frequency coaxial pin, 2220 - second insulator, 2221 - center pin rod, 2222 - second outer conductor, 2223 - deformed socket, 2224 - reserved seam, 2225 - high-frequency pin limiting protrusion, 223 - low-frequency pin, 2231 - low-frequency pin limiting protrusion, 3 - cable jack, 4 - low-frequency cable jack. Detailed implementation mode

[0046] The technical solution of the present invention will be further described below, but the scope of protection claimed is not limited thereto.

[0047] Refer to Figures 1 to 14 , a highly reliable quick-push self-locking connector provided by the present invention includes a plug 1 and a socket 2 docked with the plug 1. The socket 2 is used as a fixed end and is fixed on an electronic device.

[0048] Specifically, the plug mainly consists of a plug housing 10, a locking accessory 14, and a plug base assembly 11. The locking accessory 14 consists of a tail attachment housing 143, a torsion spring 141, a locking part 140, a rivet 142, a tail attachment cover plate 145, and a second screw 144.

[0049] AsFigure 1 As shown, the plug base assembly 11 further includes a first base 113, a second base 112, a high-frequency coaxial jack 110 and a low-frequency jack 111 installed in the installation hole of the plug base assembly 11; the plug base assembly 11 is sleeved in the stepped rectangular groove 102 of the plug housing 10 and axially limited by connecting with the plug housing 10 through the tail housing 143.

[0050] The high-frequency coaxial jack 110 is composed of a first outer conductor 1102, a first insulator 1101 and a center jack 1100. The first insulator 1101 is press-fitted into the inner cylindrical hole of the first outer conductor 1102 by interference fit. One end of the center jack 1100 is the mating end, and the other end is the welding end. After being welded to the inner core of the RF cable, it is nested in the first insulating sleeve 101.

[0051] Specifically, U-shaped lug structures 100 and first screw insertion holes 101 for limiting the torsion spring 141 are symmetrically distributed on the left and right sides of the tail end of the plug housing 10, and a stepped rectangular groove 102 for sleeving the first base 113 and the second base 11 is provided inside it.

[0052] Specifically, the locking member 140 is integrally formed by stamping, and symmetric rivet installation holes 1400 and torsion spring 141 installation limiting bosses 1401 are provided on the left and right sides for the rivet 142 to penetrate and limit the compressed state of the torsion spring 141; a ribbed anti-slip structure 1402 is provided on the outer side of the tail end, and the locking end is a semi-circular arc structure 1403. The purpose is that the ribbed anti-slip structure 1402 increases the anti-slip friction force when holding the locking member, and the locking end being an end arc structure 1403 is to reduce the contact force area between the locking member 140 and the wedge-shaped boss structures 200 at both ends of the socket upper housing 20, so as to achieve a soft push-in locking effect.

[0053] More specifically, the plug housing 10 and the locking accessory 14 are fixed by installing the first screw 12 through the threaded holes 1434 at both ends of the tail housing 143. And symmetric torsion springs 141 are provided on the left and right sides of the locking accessory 14 for unlocking and locking when the locking member 140 is connected to the socket 2. The locking member 140 and the torsion spring 141 are movably installed in the installation guide grooves 1430 on the left and right sides of the tail housing 143 through the rivet 142. During assembly, first, the torsion spring 141 is sleeved on the U-shaped lug structures 100 on the left and right side ends of the plug housing 10, then the rivet 142 is inserted through the rivet through hole 1410 on the torsion spring, the rivet installation hole 1400 on the locking member 140 and the riveting hole 1432 on the tail cover housing, and a special riveting tooling is used for riveting to complete the assembly of the locking accessory.

[0054] The socket includes a socket housing and a socket base assembly 22. The socket housing is designed with a split structure layout and includes an upper socket housing 20 and a lower housing 21. The socket base assembly 22 includes a third base 220, a fourth base 221, a high-frequency coaxial pin 222 and a low-frequency pin 223 installed in the mounting holes of the third base 220 and the fourth base 221. The socket base assembly 22 is sleeved in the upper housing 20 and the lower housing 21. The upper housing 20 and the lower housing 21 are fixed by clinching. The socket housing is made of stainless steel material to ensure reliable connection between the upper housing 20 and the lower housing 21 after clinching.

[0055] As a preferred solution of this embodiment, wedge-shaped boss structures 200 for locking and unlocking symmetrically with the plug locking member 140 are provided at both ends of the upper socket housing 20, and a plurality of riveting positioning cylindrical boss holes 201 for connecting with the lower socket housing 21 are also provided. At the same time, they can also be used as panel mounting holes for the fixed-end socket 2, which is convenient for users to install.

[0056] In the present utility model, a plurality of low-frequency contact member and high-frequency contact member mounting holes are provided on the first base 113, the second base 112, the third base 220 and the fourth base 221, and the contact member mounting hole positions on the first base 113, the second base 112, the third base 220 and the fourth base 221 are arranged in one-to-one correspondence. An anti-misinsertion triangular groove structure 1130 is provided on the mating interface of the first base 113; an anti-misinsertion triangular boss structure 2200 matching the first base 113 is provided on the mating interface of the third base 22. In addition, its shape and the arrangement of the holes can also be adjusted according to the installation requirements.

[0057] As another preferred solution of this embodiment, the low-frequency contact members 111, 223 adopt a rigid jack 1110 and an elastic stranded wire pin structure 2230, and the high-frequency coaxial contact members 110, 222 adopt a multi-slot cantilever beam elastic structure 2200 and a side wall contact structure 1100.

[0058] Preferably, the tail attachment housing 143 has a waist-shaped structure 1435, reserving sufficient pressing space for the locking member 140. The left and right sides are provided with locking member installation guide grooves 1430, and the width of the installation guide grooves 1430 is greater than the width of the locking member 140. When the locking member 140 is locked within a certain deviation range after being riveted by the rivet 142, the locking member 140 will never get stuck or even have pressing interference under the torsion force of the torsion spring 141. Multiple push-pull anti-slip grooves 1431, multiple rivet installation through holes 1432, and second threaded holes 1433 are provided on the upper and lower outer surfaces of the tail attachment housing 143, as well as multiple second screws 144 for installing the tail attachment cover 145. After the free end of the product plug 1 is welded with the cable, the cable is led out through the wire outlet grooves on the tail attachment housing 143 and the tail attachment cover 145. Under the connection and extrusion of the second screws 144, the connection between the cable and the connector is more reliable. At the same time, multiple push-pull anti-slip grooves 1431 are provided on the upper and lower outer surfaces of the tail attachment housing 143, increasing the friction force, which can avoid the situation that the force application point is transferred to the cable when the plug and the socket are unlocked and separated, resulting in the cable being pulled off, and better protects the cable.

[0059] The working principle of the product is as follows: The self-locking connection between the docking end of the socket and the docking end of the plug is realized by the locking member on the locking accessory being embedded and connected with the wedge-shaped convex platforms at both ends of the upper shell of the socket. The width of the locking member is smaller than the width of the installation guide grooves at both ends of the tail attachment housing. The locking member is embedded and locked under the action of the torsion springs on both sides. When plugging and locking, there is no need to press the locking members 140 on both sides of the locking accessory to make the torsion spring 141 in the pressed state and the locking member 140 in the relaxed state. Only need to gently push the plug 1. At this time, the semi-circular arc structure 1403 of the locking end of the locking members 140 at both ends of the plug 1 is in point or line contact with the wedge-shaped convex platform structures 200 at both ends of the upper shell 20 of the socket. When the pushing force is greater than the torsion spring elastic force, the plugging self-locking can be realized. When separating and unlocking, only need to hold the plug 1 by hand, press the locking members 140 on both sides and gently pull at the same time to complete the separation and unlocking of the plug 1 and the socket 2. At the same time, the diameter and the number of turns of the torsion spring can be adjusted to control the plugging force and the separation force.

Claims

1. A high-reliability quick push-in self-locking connector, comprising a plug (1) and a socket (2) that can be connected to each other, characterized in that: The plug (1) comprises a plug base assembly (11) and a locking accessory (14); a plurality of low-frequency jacks (111) and a plurality of high-frequency coaxial jacks (110) are respectively installed at two ends of the plug base assembly (11); the plug base assembly (11) is installed in a plug housing (10), and the butt end is flush with one end of the plug housing (10); one end of the locking accessory (14) is installed at the other end of the plug housing (10) and contacts the plug base assembly (11); The socket (2) comprises a socket base assembly (22), wherein a plurality of low-frequency pins (223) and a plurality of high-frequency coaxial pins (222) are installed in the socket base assembly (22), the low-frequency pins (223) and the high-frequency coaxial pins (222) are respectively connected to a plurality of low-frequency jacks (111) and a plurality of high-frequency coaxial jacks (110), and the socket base assembly (22) is installed in a socket housing.

2. The high-reliability quick push-in self-locking connector according to claim 1, characterized in that: A tail-attached shell (143) is installed on two opposite side surfaces of one end of the locking accessory (14), and both sides and end surfaces of the tail-attached shell (143) extend out of the locking accessory (14). Two locking members (140) are respectively hinged between the two tail-attached shells (143) on both sides of the locking accessory (14), and a torsion spring (141) is installed between the locking member (140) and the locking accessory (14).

3. The high-reliability quick push-in self-locking connector according to claim 2, characterized in that: The locking member (140) is integrally formed by stamping, and is provided with symmetrical rivet mounting holes (1400) and torsion spring (141) mounting limiting bosses (1401) on the left and right sides, a convex rib anti-slip structure (1402) is provided on the outer side surface of the tail end, and the locking end is a semicircular arc structure (1403).

4. The high-reliability quick push-in self-locking connector according to claim 1, characterized in that: The socket housing comprises an upper shell (20) and a lower shell (21), the upper shell (20) being fixed on the outer wall of the plug-in end of the socket base assembly (22), and the lower shell being wrapped around the other end of the socket base assembly (22); The edges of the upper shell (20) and the lower shell (21) facing each other are both fixed with connecting plates, and both ends of the connecting plate on the upper shell (20) are respectively processed with a hollow riveted cylinder (201), and both ends of the connecting plate on the lower shell (21) are processed with through holes corresponding to the hollow riveted cylinder (201), and the hollow riveted cylinder (201) is riveted to fix the upper shell (20) and the lower shell (21); The upper shell (20) is provided with symmetrically distributed wedge-shaped boss structures (200) for locking and unlocking with the plug locking piece (140) at both ends of the plug-in surface of the upper shell (20).

5. The high-reliability quick push-in self-locking connector according to claim 4, characterized in that: Steps are formed on both sides of the connection between the inner walls of the upper shell (20) and the lower shell (21), corresponding to the steps on the side walls of the socket base assembly (22); the socket base assembly (22) comprises a third base (220) and a fourth base (221); and the third base (220) is machined with steps.

6. The high-reliability quick push-in self-locking connector according to claim 1, characterized in that: The plug base assembly (11) comprises a first base (113) and a second base (112); the first base (113), the second base (112) and the side surfaces of the locking accessory (14) form gradually increasing steps corresponding to the steps in the plug housing (10); a first threaded hole (1434) processed on the side wall of the locking accessory (14) corresponds to a first screw insertion hole (101) processed on the side wall of the plug housing (10), and is assembled with a first screw (12).

7. The high-reliability quick push-in self-locking connector according to claim 6, characterized in that: A triangular groove (1130) is also machined on the end surface of the first base (113) to correspond to the triangular boss (2200) on the third base (220); the low-frequency jack (111) is installed within the range of the triangular groove (1130), and the low-frequency pin (223) is installed within the range of the triangular boss (2200).

8. The high-reliability quick push-in self-locking connector according to claim 1, characterized in that: The high-frequency coaxial jack (110) comprises: A first outer conductor (1102), wherein a stepped hole is processed inside the first outer conductor (1102) and an annular protrusion is processed on the outer wall; A first insulating sleeve (1101), wherein an outer wall of one end of the first insulating sleeve (1101) is processed into a step column; A central jack rod (1100), one end of which is processed with a jack (1104) and the other end of which is processed with a cable core jack; The first insulating sleeve (1101) is installed in the small diameter hole of the step hole in the first outer conductor (1102) with the end thereof in contact with the step, and an insertion cavity (1103) is formed between the step column at the other end and the inner wall of the first outer conductor (1102), and a limiting groove (1105) is also processed on the side wall of the insertion cavity (1103); The annular protrusion outside the first outer conductor (1102) matches with the groove formed adjacent to the first base (113) and the second base (112); The central plug-in rod (1100) is installed on the first insulating sleeve (1101), and the end of the plug-in hole (1104) and the end of the step column are on the same plane; The high-frequency coaxial pin (222) comprises a second insulating sleeve (2220) and a second outer conductor (2222): The second insulating sleeve (2220) is installed in the stepped hole of the second outer conductor (2222), and the center pin (2221) is installed in the second insulating sleeve (2220); One end of the second outer conductor (2222) extends into the insertion cavity (1103), and the extended end is arranged as a deformable socket (2223); an outer conical surface is processed on the outer wall of the second insulating sleeve (2220) and a reserved gap (2224) is formed between the inner wall of the deformable socket (2223); The deformable socket (2223) is composed of a plurality of uniform cantilevers, and a protrusion is provided at the end of each cantilever to cooperate with the limiting groove (1105).

9. The high-reliability quick push-in self-locking connector according to claim 1, characterized in that: Bosses are processed on the outer walls of the low-frequency jack (111) and the low-frequency pin (223), and an elastic twisted wire pin structure is provided at the end of the low-frequency pin (223) to cooperate with a rigid jack (1110) provided at the end of the low-frequency jack (111).

10. The high-reliability quick push-in self-locking connector according to claim 2, characterized in that: The left and right sides of the tail-attached shell (143) are waist-shaped structures (1435) and are provided with locking member installation guide grooves (1430), and the width of the installation guide grooves (1430) is greater than the width of the locking member (140); the upper and lower outer surfaces of the tail-attached shell (143) are provided with a plurality of push-pull anti-slip grooves (1431) and a plurality of rivet installation through holes (1432) and second threaded holes (1433), and the tail-attached cover plate (145) is connected and fixed to the second threaded holes (1433) by a second screw (144).

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