阅读说明：本技术 一种盲插式推拉自锁连接器 (Blind-plugging type push-pull self-locking connector ) 是由 曾志坚 于 2020-05-26 设计创作，主要内容包括：本发明公开一种盲插式推拉自锁连接器,包括插接头、插接座、周向对位组件和弹性锁紧组件；插接头包括插头壳体、插头胶芯和若干插针；插接座包括插座壳体、插座胶芯和若干插孔；周向对位组件包括对位导向台和对位导向块；对位导向台设于插头壳体或插座壳体,对位导向块设于插座壳体或插头壳体；对位导向台的对位导向面朝向插接开口,且对位导向面沿轴向螺旋延伸；插头壳体或插座壳体设有插接导向槽；弹性锁紧组件用于在插针插入插孔后,将插接头与插接座进行轴向锁紧连接。该盲插式推拉自锁连接器,通过周向对位组件的配合,可在对插过程中,调整插针与插孔之间的周向相对位置,可盲插连接；本发明的连接器其具有盲插及自锁功能,插接简单快速。(The invention discloses a blind-mate push-pull self-locking connector which comprises a plug connector, a plug socket, a circumferential alignment assembly and an elastic locking assembly, wherein the plug connector is connected with the plug socket through a cable; the plug connector comprises a plug shell, a plug rubber core and a plurality of contact pins; the plug socket comprises a socket shell, a socket rubber core and a plurality of jacks; the circumferential alignment assembly comprises an alignment guide table and an alignment guide block; the alignment guide table is arranged on the plug shell or the socket shell, and the alignment guide block is arranged on the socket shell or the plug shell; the alignment guide surface of the alignment guide table faces the insertion opening and extends spirally along the axial direction; the plug shell or the socket shell is provided with an inserting guide groove; the elastic locking assembly is used for axially locking and connecting the plug connector and the plug socket after the contact pin is inserted into the jack. According to the blind-plugging push-pull self-locking connector, through the matching of the circumferential alignment assemblies, the circumferential relative position between the contact pin and the jack can be adjusted in the process of plug-in, and blind-plugging connection can be realized; the connector has the blind plugging and self-locking functions, and is simple and quick to plug.)

1. A blind-mate push-pull self-locking connector is characterized by comprising a plug connector (10), a plug socket (20), a circumferential alignment component and an elastic locking component;

the plug connector (10) comprises a cylindrical plug shell (11), a plug rubber core (12) arranged in the plug shell (11) and a plurality of contact pins (13) arranged in the plug rubber core (12);

the plug socket (20) comprises a cylindrical socket shell (21), a socket rubber core (22) arranged in the socket shell (21) and a plurality of socket terminals (23) arranged in the socket rubber core (22), wherein the socket terminals (23) are provided with jacks (231);

the circumferential alignment assembly comprises an alignment guide table (32) and an alignment guide block (31), the alignment guide table (32) is arranged on the first connecting piece, and the alignment guide block (31) is arranged on the second connecting piece; the first connecting piece is the plug shell (11) or the socket shell (21), and the second connecting piece is the socket shell (21) or the plug shell (11);

the first connecting piece is provided with a first inserting end (211), the first inserting end (211) is provided with a first inserting opening (2111), the alignment guide table (32) is arranged on the inner wall of the first inserting end (211), the alignment guide table (32) is provided with an alignment guide surface (321) facing the first inserting opening (2111), the alignment guide surface (321) extends spirally along the axial direction, and one end, away from the first inserting opening (2111), of the alignment guide table (32) is an alignment guide terminal; the first connecting piece is also provided with an inserting guide groove (2121) vertically extending along the axial direction, and the end part of one side, close to the aligning guide terminal, of the inserting guide groove (2121) is provided with a guide opening (21211); the second connecting piece is provided with a second inserting end (111), and the alignment guide block (31) is arranged on the outer wall of the second inserting end (111);

the outer diameter of the second plugging end (111) is smaller than the inner diameter of the first plugging end (211), and when the plug connector (10) is plugged and connected with the plugging seat (20), the second plugging end (111) is plugged into the first plugging end (211) through the first plugging opening (2111); the second plugging end (111) is provided with a primary plugging position and a secondary plugging position which are plugged into the first plugging end (211); when the second plugging end (111) is plugged into the primary plugging position, the alignment guide block (31) is positioned at the guide opening (21211), and the contact pins (13) are aligned with the jacks (231) one by one; when the second plugging end (111) is plugged into the second-stage plugging position, the alignment guide block (31) is clamped into the alignment guide groove, and the contact pin (13) is plugged into the jack (231);

the alignment guide block (31) is used for driving the first connecting piece or the second connecting piece to rotate around a central axis under the guidance of the alignment guide surface (321) in the process that the second inserting end (111) moves from the first inserting opening (2111) to the primary inserting position so as to adjust the circumferential relative position between the inserting pin (13) and the inserting hole (231); the guide opening (21211) is configured to enable the alignment guide block (31) to slide to the guide opening (21211) after sliding out from the alignment guide terminal; the inserting guide groove (2121) is used for providing a moving stroke of the alignment guide block (31) in the process that the second inserting end (111) moves from the primary inserting position to the secondary inserting position;

the elastic locking assembly comprises an elastic lock catch (41) and a clamping groove (42), the elastic lock catch (41) is arranged on the plug-in connector (10) or the plug-in connector (20), and the clamping groove (42) is arranged on the plug-in connector (20) or the plug-in connector (10); when the first plugging end (211) moves to the second plugging position, the elastic lock catch (41) is clamped into the plug main shell; the elastic locking assembly is used for axially locking and connecting the plug connector (10) and the plug socket (20).

2. The blind mate push-pull self-locking connector as claimed in claim 1, wherein the first connector is a receptacle main housing and the second connector is a plug main housing.

3. The blind mate push-pull self-locking connector according to claim 1, wherein the first connector comprises a first cylindrical portion and a second cylindrical portion (212), the first cylindrical portion being the first mating end (211); the plug rubber core (12) or the socket rubber core (22) is arranged in the second cylindrical part (212); the first cylindrical portion and the second cylindrical portion (212) are coaxially disposed, and the inner diameter of the second cylindrical portion (212) is smaller than that of the first cylindrical portion; the guide positioning table is fixed on the inner wall of the first cylindrical part, the inserting guide groove (2121) is arranged on the second cylindrical part (212), the guide opening (21211) is arranged on the end face, close to the first cylindrical part, of the second cylindrical part (212), and the guide positioning terminal is connected with the guide opening (21211);

elastic lock catch (41) is located counterpoint guide block (31) or the cell wall of grafting guide way (2121), draw-in groove (42) are located the cell wall of grafting guide way (2121) or counterpoint guide block (31), second grafting end (111) insert to during the second grade grafting position, elastic lock catch (41) card is gone into in draw-in groove (42).

4. Blind mate push-pull self-locking connector according to claim 3, characterised in that the resilient catch (41) is provided on the radial side wall of the alignment guide block (31); the clamping groove (42) is arranged on the groove wall of the guide groove; when the second inserting end (111) is inserted into the second-stage inserting position, the elastic lock catch (41) is clamped into the clamping groove (42).

5. The blind mate push-pull self-locking connector according to claim 4, wherein the alignment guide block (31) is provided with a radially extending mounting groove (311) therein, the resilient locking catch (41) comprises a locking block (411) and a spring (412), and the spring (412) is provided in the mounting groove (311); one end of the spring (412) is fixed on the mounting groove (311), and the other end of the spring is connected with the locking block (411); one end of the locking block (411) is inserted into the mounting groove (311); the locking block (411) has a locking bevel (4111) towards the plug opening side of the second plug end (111);

when the second plugging end (111) is inserted into the first plugging end (211) from the first plugging opening (2111), the first plugging end (211) provides a counterforce to the locking block (411) through the locking inclined surface (4111) so as to push the locking block (411) towards the direction of the mounting groove (311); when the second plugging end (111) is plugged into the second-stage plugging position, the locking block (411) is clamped into the clamping groove (42) under the action of the reset force of the spring (412).

6. The blind mate push-pull self-locking connector according to claim 4, wherein the catch (42) is a through slot; when the elastic lock catch (41) is clamped in the clamping groove (42), the elastic lock catch (41) extends out of the first connecting piece from the clamping groove (42);

the connector still includes unlocking sleeve (50), unlocking sleeve (50) cover is located outside the first connecting piece, unlocking sleeve (50) one end is fixed in the outer wall of first connecting piece, other end for having radial unlocking end (51) that opens and shuts elasticity, unlocking end (51) are L type unlocking end (51), unlocking end (51) are used for under the effect of the clamping force that externally applys, insert draw-in groove (42), in order to incite somebody to action elasticity hasp (41) are radially toward the direction of counterpoint guide block (31) is supported and is pushed away to make elasticity hasp (41) break away from draw-in groove (42).

7. The blind mate push-pull self-locking connector according to any one of claims 1 to 6, wherein the hole centers of the plurality of insertion holes (231) are located on the same reference circle, the reference circle is centered on the central axis of the socket (20), and the plurality of insertion holes (231) are arranged on the reference circle at equal intervals along the circumferential direction; the pins (13) are arranged in a manner matched with the jacks (231); the number of the alignment guide tables (32) and the alignment guide blocks (31) is the same as that of the insertion holes (231); the number of the inserting guide grooves (2121) is the same as that of the aligning guide tables (32);

the plurality of alignment guide tables (32) are circumferentially arranged on the inner wall of the first connecting piece at equal intervals, and the plurality of alignment guide blocks (31) are circumferentially arranged on the inner wall of the second connecting piece at equal intervals; the circumferential width, the axial length and the winding direction of the plurality of alignment guide planes are the same, and the plurality of alignment guide terminals are positioned in the same cross section.

8. The blind mate push-pull self-locking connector according to claim 7, wherein each of the alignment guide surfaces (321) is connected to a side of one of the guide openings (21211); several of the guide openings (21211) are located on the same cross section of the second connector.

9. Blind-mate push-pull self-locking connector according to one of claims 1 to 6, characterised in that the number of alignment guides (32) is one; the head end of the alignment guide surface (321) spirally winds around the inner wall of the second inserting end (111) for a circle to reach the terminal of the alignment guide surface (321); the number of the inserting guide grooves (2121) is one, and the guide opening (21211) is connected with the alignment guide terminal;

the plurality of sockets (231) includes a first socket (231), the plurality of pins (13) includes a first pin (13), and the insertion guide slot (2121) is configured such that the first pin (13) is axially aligned with the first socket (231) when the alignment guide block (31) slides over the guide opening (21211).

10. Blind-mate push-pull self-locking connector according to one of claims 1 to 6, characterised in that the alignment guide block (31) comprises a guide block body and a ball (43); the ball (43) is rotationally connected with the guide block body; when the first inserting end (211) is inserted into the second inserting end (111), the ball (43) abuts against the alignment guide surface (321); when the alignment guide block (31) slides on the alignment guide surface (321), the ball (43) rotates relative to the guide block body.

Technical Field

The invention relates to the technical field of electric connectors, in particular to a blind-mate push-pull self-locking connector.

Background

An electrical connector, which is an electromechanical element connecting electrical lines, for interconnection between devices; the electric connectors are classified according to the shapes and comprise circular connectors and rectangular connectors, and the circular connectors are officially applied to aerospace, post and telecommunications and instrument and meter lamp equipment due to the structural characteristics of the circular connectors; the circular connector generally comprises a plug and a socket, and the plug and the socket are oppositely plugged to realize contact between the contact pin and the jack so as to realize electrical interconnection between devices. The conventional circular connector generally adopts a multi-core structure, namely, the multi-core structure means that a plurality of contact pins are arranged on a plug connector, the contact pins are positioned on the same reference circle, the reference circle takes the central axis of the plug connector as the center of a circle, and jacks on a plug socket are matched with the arrangement modes of the contact pins, so that the electrical connection efficiency of the connector with the multi-core structure is high.

However, in order to ensure that the contact pin is accurately inserted into the jack, when an operator performs a docking operation between the connector and the socket, the operator must first adjust a circumferential relative angle between the connector and the socket to ensure that the contact pin and the socket can be aligned, so as to avoid damage to the contact pin due to inaccurate alignment; thus, the plugging operation of the connector is troublesome and time-consuming.

Disclosure of Invention

One object of an embodiment of the present invention is to: the blind-plugging push-pull self-locking connector has the blind-plugging function, and the plugging process is simple and quick.

Another object of an embodiment of the present invention is to: the blind-plugging push-pull self-locking connector has the plugging self-locking function, and the plugging process is simple and quick.

In order to achieve the purpose, the invention adopts the following technical scheme:

a blind-mate push-pull self-locking connector comprises a plug connector, a plug socket, a circumferential alignment assembly and an elastic locking assembly;

the plug connector comprises a cylindrical plug shell, a plug rubber core arranged in the plug shell and a plurality of contact pins arranged in the plug rubber core;

the plug socket comprises a cylindrical socket shell, a socket rubber core arranged in the socket shell and a plurality of socket terminals arranged in the socket rubber core, wherein the socket terminals are provided with jacks;

the circumferential alignment assembly comprises an alignment guide table and an alignment guide block, the alignment guide table is arranged on the first connecting piece, and the alignment guide block is arranged on the second connecting piece; the first connecting piece is the plug shell or the socket shell, and the second connecting piece is the socket shell or the plug shell;

the first connecting piece is provided with a first inserting end, the first inserting end is provided with a first inserting opening, the alignment guide table is arranged on the inner wall of the first inserting end and provided with an alignment guide surface facing the first inserting opening, the alignment guide surface extends spirally along the axial direction, and one end, away from the first inserting opening, of the alignment guide table is an alignment guide terminal; the first connecting piece is also provided with an inserting guide groove which vertically extends along the axial direction, and the end part of one side of the inserting guide groove, which is close to the alignment guide terminal, is provided with a guide opening; the second connecting piece is provided with a second inserting end, and the alignment guide block is arranged on the outer wall of the second inserting end;

the outer diameter of the second plugging end is smaller than the inner diameter of the first plugging end, and when the plugging connector is plugged and connected with the plugging seat, the second plugging end is plugged into the first plugging end through the first plugging opening; the second plugging end is provided with a first-stage plugging position and a second-stage plugging position which are plugged into the first plugging end; when the second plugging end is plugged into the first-stage plugging position, the alignment guide block is positioned at the guide opening, and the contact pins are aligned with the jacks one by one; when the second plugging end is inserted into the second-stage plugging position, the alignment guide block is clamped into the alignment guide groove, and the contact pin is inserted into the jack;

the alignment guide block is used for driving the first connecting piece or the second connecting piece to rotate around a central axis under the guidance of the alignment guide surface in the process that the second plugging end moves from the first plugging opening to the first-stage plugging position so as to adjust the circumferential relative position between the contact pin and the jack; the guide opening is configured to enable the alignment guide block to slide to the guide opening after sliding out of the alignment guide terminal; the inserting guide groove is used for providing a moving stroke of the alignment guide block in the process that the second inserting end moves from the first-stage inserting position to the second-stage inserting position;

the elastic locking component comprises an elastic lock catch and a clamping groove, the elastic lock catch is arranged on the plug connector or the plug socket, and the clamping groove is arranged on the plug socket or the plug connector; when the first plugging end moves to the second plugging position, the elastic lock catch is clamped into the plug main shell; the elastic locking assembly is used for axially locking and connecting the plug connector and the plug socket.

Preferably, the first connecting piece is a socket main shell, and the second connecting piece is a plug main shell.

Preferably, the first connector includes a first cylindrical portion and a second cylindrical portion, and the first cylindrical portion is the first insertion end; the plug rubber core or the socket rubber core is arranged in the second cylindrical part; the first cylindrical portion and the second cylindrical portion are coaxially arranged, and the inner diameter of the second cylindrical portion is smaller than that of the first cylindrical portion; the guide positioning table is fixed on the inner wall of the first cylindrical part, the insertion guide groove is formed in the second cylindrical part, the guide opening is formed in the end face, close to the first cylindrical part, of the second cylindrical part, and the guide positioning terminal is connected with the guide opening;

the elastic lock catch is arranged on the alignment guide block or the groove wall of the insertion guide groove, the clamping groove is arranged on the groove wall of the insertion guide groove or the alignment guide block, and when the second insertion end is inserted into the second-stage insertion position, the elastic lock catch is clamped into the clamping groove.

Preferably, the elastic lock catch is arranged on the radial side wall of the alignment guide block; the clamping groove is arranged on the groove wall of the guide groove; when the second inserting end is inserted into the second-stage inserting position, the elastic lock catch is clamped into the clamping groove.

Preferably, an installation groove extending along the radial direction is formed in the alignment guide block, the elastic lock catch comprises a locking block and a spring, and the spring is arranged in the installation groove; one end of the spring is fixed on the mounting groove, and the other end of the spring is connected with the locking block; one end of the locking block is inserted into the mounting groove; the locking block is provided with a locking inclined surface towards the side of the inserting opening of the second inserting end;

when the second plug end is inserted into the first plug end from the first plug opening, the first plug end provides counterforce to the locking block through the locking inclined surface so as to push the locking block to the direction of the mounting groove; when the second plugging end is inserted into the second-stage plugging position, the locking block is clamped into the clamping groove under the action of the reset force of the spring.

Preferably, the clamping groove is a through groove; when the elastic lock catch is clamped in the clamping groove, the elastic lock catch extends out of the first connecting piece from the clamping groove;

the connector still includes the unlocking sleeve, the unlocking sleeve cover is located outside the first connecting piece, unlocking sleeve one end is fixed in the outer wall of first connecting piece, the other end is for having the unlocking end of radial opening and shutting elasticity, the unlocking end is L type unlocking end, the unlocking end is used for inserting under the effect of the clamping force of externally exerting the draw-in groove, in order with the elasticity hasp is radially toward the direction of counterpointing the guide block supports and pushes away to make the elasticity hasp break away from the draw-in groove.

Preferably, the centers of the plurality of jacks are located on the same reference circle, the reference circle takes the central axis of the socket as the center of a circle, and the plurality of jacks are arranged on the reference circle at equal intervals along the circumferential direction; the pin arrangement modes are matched with the jacks; the number of the alignment guide tables and the alignment guide blocks is the same as that of the jacks; the number of the inserting guide grooves is the same as that of the aligning guide tables;

the plurality of alignment guide tables are circumferentially arranged on the inner wall of the first connecting piece at equal intervals, and the plurality of alignment guide blocks are circumferentially arranged on the inner wall of the second connecting piece at equal intervals; the circumferential width, the axial length and the winding direction of the plurality of alignment guide planes are the same, and the plurality of alignment guide terminals are positioned in the same cross section.

Preferably, each of the aligning guide surfaces is connected to a side edge of one of the guide openings; the plurality of guide openings are located on the same cross section of the second connecting piece.

Preferably, the number of the alignment guide tables is one; the head end of the alignment guide surface spirally winds around the inner wall of the second inserting end for a circle to reach the terminal of the alignment guide surface; the number of the inserting guide grooves is one, and the guide opening is connected with the alignment guide terminal;

the plurality of jacks comprise a first jack, the plurality of pins comprise a first pin, and the plugging guide groove is configured to be axially aligned with the first jack when the alignment guide block slides to the position above the guide opening.

Preferably, the alignment guide block comprises a guide block body and a ball; the ball is rotationally connected with the guide block body; when the first inserting end is inserted into the second inserting end, the ball is abutted against the alignment guide surface; when the alignment guide block slides on the alignment guide surface, the ball rotates relative to the guide block body.

The invention has the beneficial effects that: (1) according to the blind-mate push-pull self-locking connector, the circumferential relative position between the contact pin and the jack can be adjusted in the process of butt-mating of the plug connector and the socket through the matching of the circumferential alignment components, so that an operator can accurately insert the contact pin into the jack without adjusting the butt-joint angle of the plug connector and the socket in advance when the plug connector and the socket are in butt-mating connection, and the contact pin can be prevented from being damaged; (2) this blind-mate formula push-and-pull self-locking connector, through the elasticity retaining member will the bayonet joint keep pegging graft in the plug socket, this locking mode is for screw thread locking mode, and convenient and fast more.

Drawings

The invention is explained in more detail below with reference to the figures and examples.

FIG. 1 is a longitudinal sectional view of the plug of the connector according to the embodiment of the present invention;

FIG. 2 is a longitudinal sectional view of the socket of the connector according to the embodiment of the present invention;

FIG. 3 is a cross-sectional view of the socket of the connector according to the embodiment of the present invention;

FIG. 4 is a schematic longitudinal sectional view of the socket of the connector according to the embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a plugging principle of the connector according to the embodiment of the invention (when the second plugging end is located at the first-stage plugging position);

fig. 6 is a schematic diagram illustrating a plugging principle of the connector according to the embodiment of the invention (when the second plugging end is located at the second plugging position);

FIG. 7 is a schematic view of the connector according to the embodiment of the present invention with the unlocking sleeve in the protecting position;

fig. 8 is a schematic structural diagram of the unlocking sleeve of the connector according to the embodiment of the present invention in the unlocking position.

In the figure: 10. a plug-in connector; 11. a plug housing; 111. a second plug end; 12. a plug rubber core; 13. inserting a pin; 20. a socket; 21. a socket housing; 211. a first plug end; 2111. a first plug opening; 212. a second cylindrical portion; 2121. inserting a guide groove; 21211. a guide opening; 22. a socket rubber core; 23. a socket terminal; 231. a jack; 2311. a conductive gasket; 31. aligning the guide block; 311. mounting grooves; 32. aligning a guide table; 321. aligning the guide inclined plane; 33. a stop block is shielded; 41. elastic lock catches; 411. a locking block; 4111. a locking ramp; 412. a spring; 42. a card slot; 43. a ball bearing; 50. unlocking the sleeve; 51. and an unlocking end.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "fixed" are to be understood broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The invention provides a blind-mate push-pull self-locking connector, which can realize the automatic alignment of a contact pin 13 and a jack 231 in the process of oppositely plugging a plug connector 10 and a plug socket 20, so that the blind-mate push-pull self-locking connector has a blind-mate function; it also has the function of inserting and self-locking; the connector is convenient and time-saving in plug-in connection operation.

As shown in fig. 1 to 8, in an embodiment of the connector of the present invention, the connector includes a plug 10, a socket 20, a circumferential alignment assembly and a resilient locking assembly;

the plug connector 10 comprises a cylindrical plug shell 11, a plug rubber core 12 arranged in the plug shell 11 and a plurality of contact pins 13 arranged in the plug rubber core 12; the plug shell 11 is a cylindrical plug plugging end;

the socket 20 comprises a cylindrical socket shell 21, a socket rubber core 22 arranged in the socket shell 21 and a plurality of socket terminals 23 arranged in the socket rubber core 22, wherein the socket terminals 23 are provided with jacks 231;

the circumferential alignment assembly comprises an alignment guide table 32 and an alignment guide block 31, the alignment guide table 32 is arranged on the first connecting piece, and the alignment guide block 31 is arranged on the second connecting piece; when the first connecting piece is the plug shell 11, the second connecting piece is the socket shell 21; when the first connecting piece is the socket shell 21, the second connecting piece is the plug shell 11;

the first connecting piece is provided with a first inserting end 211, the first inserting end 211 is provided with a first inserting opening 2111, the alignment guide table 32 is arranged on the inner wall of the first inserting end 211, the alignment guide table 32 is provided with an alignment guide surface 321 facing the first inserting opening 2111, the alignment guide surface 321 extends spirally in the direction far away from the first inserting opening 2111 along the axial direction, and one end of the alignment guide table 32 far away from the first inserting opening 2111 is an alignment guide terminal; the first connecting piece is also provided with an inserting guide groove 2121 vertically extending along the axial direction, and the end part of one side of the inserting guide groove 2121 close to the aligning guide terminal is provided with a guide opening 21211; the second connecting piece is provided with a second inserting end 111, and the alignment guide block 31 is arranged on the outer wall of the second inserting end 111;

the outer diameter of the second plugging end 111 is smaller than the inner diameter of the first plugging end 211, and when the plug connector 10 is plugged into the socket 20, the second plugging end 111 is plugged into the first plugging end 211 through the first plugging opening 2111; the second plugging end 111 has a first plugging position and a second plugging position which are plugged into the first plugging end 211; when the second plugging end 111 is plugged into the first-stage plugging position, the alignment guide block 31 is located at the guide opening 21211, and the pins 13 are aligned with the insertion holes 231 one by one; when the second plugging end 111 is plugged into the second-stage plugging position, the alignment guide block 31 is clamped into the alignment guide groove, and the pin 13 is plugged into the jack 231;

the alignment guide block 31 is configured to drive the first connector or the second connector to rotate around a central axis (that is, drive the connector provided with the alignment guide block 31 to rotate around the central axis) under the guidance of the alignment guide surface 321 in the process that the second inserting end 111 moves from the first inserting opening 2111 to the first-stage inserting position, so as to adjust the circumferential relative position between the inserting pin 13 and the inserting hole 231; the guide opening 21211 is configured to allow the alignment guide block 31 to slide into the guide opening 21211 after sliding out from the alignment guide terminal; the plugging guide slot 2121 is configured to provide a moving stroke of the alignment guide block 31 when the second plugging end 111 moves from the first plugging position to the second plugging position.

The blind-plugging self-locking process of the blind-plugging push-pull self-locking connector comprises the following steps:

firstly, an axial thrust is provided to the plug connector 10 or the socket 20 by an external force, the second plugging end 111 is inserted into the first plugging end 211 from the first plugging opening 2111, and the alignment guide block 31 abuts against the alignment guide surface 321;

then, the external force continues to provide an axial thrust, and the axial thrust is decomposed into an axial thrust and a circumferential rotation driving force through the matching of the alignment guide block 31 and the alignment guide surface 321, so that the plug 10 and the socket 20 are further axially inserted, and the plug 10 and the socket 20 rotate relatively around the central axis;

then, when the aligning guide block 31 moves to the guide opening 21211, the pin 13 is aligned with the insertion hole 231, but the pin 13 is not inserted into the insertion hole 231;

then, an external force continues to provide an axial thrust, the plug 10 and the socket 20 keep axially close to each other for further butt joint, in this process, the second connecting member drives the alignment guide block 31 to slide in the plug guide groove 2121, and the plug guide groove 2121 not only provides an axial displacement stroke for the alignment guide block 31, but also cooperates with the alignment guide block 31, so that the plug 10 and the socket 20 are prevented from relatively rotating, and the pin 13 can be accurately inserted into the insertion hole 231;

finally, the inserting pin 13 is inserted into the inserting hole 231, at this time, the elastic lock catch 41 is clamped into the clamping groove 42, and the plug connector 10 and the socket 20 are axially locked and connected.

It is to be understood that the alignment guide surface 321 in the present embodiment is configured to be exposed from the first inserting opening 2111, that is, when the alignment guide block 31 is inserted into the first connector, the alignment guide surface 321 can directly abut against the alignment guide surface 321, and the alignment guide surface 321 can cooperate with the alignment guide block 31 to achieve a guiding function during the inserting process, so that the first connector or the second connector can rotate relatively to each other, thereby adjusting the circumferential relative position between the pin 13 and the inserting hole 231.

It can be further understood that, when the second inserting end 111 is just inserted into the first inserting end 211, the smaller the initial axial distance between the alignment guide block 31 and the alignment guide surface 321 is, the larger the initial circumferential position deviation between the pin 13 and the socket 231 is, and the larger the angle of relative rotation between the first connecting piece and the second connecting piece is.

It can be further understood that the outer diameter of the second inserting end 111 provided with the alignment guide block 31 is set to be smaller than the inner diameter of the first inserting end 211 provided with the alignment guide table 32, so that the alignment guide of the alignment guide block 31 and the alignment guide table 32 can be ensured.

Further, in an embodiment of the connector of the present invention, the first connecting member is a socket main housing, the second connecting member is a plug main housing, that is, the alignment guide 32 is disposed on an inner wall of the socket main housing, and the alignment guide block 31 is disposed on an outer wall of the plug main housing.

Further, in an embodiment of the connector of the present invention, the first connecting member includes a first cylindrical portion and a second cylindrical portion 212, and the first cylindrical portion is the first plugging end 211; the plug rubber core 12 or the socket rubber core 22 is arranged in the second cylindrical part 212; the first cylindrical portion and the second cylindrical portion 212 are coaxially disposed, and the inner diameter of the second cylindrical portion 212 is smaller than that of the first cylindrical portion; the guide positioning table is fixed on the inner wall of the first cylindrical part, the insertion guide groove 2121 is arranged on the second cylindrical part 212, the guide opening 21211 is arranged on the end surface of the second cylindrical part 212 close to the first cylindrical part, and the guide positioning terminal is connected with the guide opening 21211. With such an arrangement, the guide positioning block slid out from the guide positioning terminal can be stably slid into the insertion guide slot 2121 through the guide opening 21211, so as to ensure stable insertion of the plug 10 and the socket 20.

Further, as shown in fig. 2, the circumferential docking assembly further includes a stopper 33, the stopper 33 is connected to a side edge of one side of the guide opening 21211 away from the alignment guide stage 32, so as to prevent the alignment guide block 31 from slipping out from the alignment guide terminal and excessively slipping in the circumferential direction due to inertia, and missing the guide opening 21211, and ensure that the alignment guide block 31 stably enters the insertion guide groove 2121 from the guide opening 21211, so that the plug 10 and the socket 20 can be further inserted into each other, and the pin 13 can be inserted into the insertion hole 231.

Further, as shown in fig. 2, the stopper 33 is inclined by 8 to 15 degrees toward a side away from the alignment guide table 32, so that the alignment guide block 31 which excessively slides can be more gently guided to the guide opening 21211; thus, damage to the alignment guide block 31 can be reduced.

Further, in another embodiment of the connector of the present invention, in order to improve the structural compactness of the connector, the elastic lock 41 is disposed on the groove wall of the alignment guide block 31 or the insertion guide groove 2121, the locking groove 42 is disposed on the groove wall of the insertion guide groove 2121 or the alignment guide block 31, and when the second insertion end 111 is inserted to the secondary insertion position, the elastic lock 41 is locked in the locking groove 42.

Further, the elastic lock 41 is disposed on a radial sidewall of the alignment guide block 31; the clamping groove 42 is arranged on the groove wall of the guide groove; when the second plugging end 111 is plugged into the second plugging position, the elastic latch 41 is latched into the slot 42.

Further, in order to prevent the elastic lock catch 41 from affecting the insertion of the second insertion end 111 into the first insertion end 211, a radially extending installation groove 311 is formed inside the alignment guide block 31, the elastic lock catch 41 includes a locking block 411 and a spring 412, and the spring 412 is disposed in the installation groove 311; one end of the spring 412 is fixed to the mounting groove 311, and the other end is connected to the locking block 411; one end of the locking block 411 is inserted into the mounting groove 311; the locking block 411 has a locking bevel 4111 towards the plugging opening side of the second plugging end 111;

when the second plugging end 111 is inserted into the first plugging end 211 from the first plugging opening 2111, the first plugging end 211 provides a counterforce to the locking block 411 through the locking inclined surface 4111, so as to push the locking block 411 toward the mounting slot 311; when the second plugging end 111 is plugged into the second-stage plugging position, the locking block 411 is clamped into the slot 42 under the action of the restoring force of the spring 412. Therefore, through the matching of the locking inclined surface 4111 and the first inserting end 211, it can be ensured that the second inserting end 111 is inserted into the first inserting end 211 more easily, and the counterforce provided by the first inserting end 211 can be utilized to provide force for the spring 412, so that when the locking block 411 is aligned to the clamping groove 42 in the radial direction, the spring 412 can provide restoring force, so that the locking block 411 is clamped into the clamping groove 42.

Further, in order to realize the disassembly of the connector and facilitate the maintenance or recycling, the connector of the embodiment is further provided with an unlocking sleeve 50;

specifically, the card slot 42 is a through slot; when the elastic lock catch 41 is clamped in the clamping groove 42, the elastic lock catch 41 extends out of the first connecting piece from the clamping groove 42; the unlocking sleeve 50 is sleeved outside the first connecting piece, one end of the unlocking sleeve 50 is fixed on the outer wall of the first connecting piece, the other end of the unlocking sleeve is an unlocking end 51 with radial opening and closing elasticity, the unlocking end 51 is an L-shaped unlocking end 51, the unlocking end 51 is used for clamping inwards under the action of clamping force applied externally and is inserted into the clamping groove 42, so that the elastic lock catch 41 is pushed and pushed in the radial direction towards the alignment guide block 31, the elastic lock catch 41 is separated from the clamping groove 42, and at the moment, the unlocking sleeve 50 is located at an unlocking position. With the arrangement, the unlocking operation of the plug-in connector 10 and the plug-in socket 20 is more convenient and simpler.

Further, in order to avoid that the unlocking end 51 is radially clamped under the action of an accidental external force in a use environment, the unlocking sleeve 50 also has a protection position for shielding the elastic locking buckle 41 between the unlocking sleeve 50 and the shell of the connector.

Further, the unlocking sleeve 50 is slidably connected with the plug housing 11 or the socket housing 21 through an axial guiding component to move between the unlocking position and the protection position.

Further, as shown in fig. 1 to 8, in another embodiment of the connector of the present invention, the pin 13 has no specific plugging requirement, that is, when the pin 13 is inserted into any of the sockets 231, the electrical connection function of the connector can be realized;

specifically, the hole centers of the plurality of insertion holes 231 are located on the same reference circle, the reference circle uses the central axis of the socket 20 as the center of circle, the plurality of insertion holes 231 are arranged on the reference circle at equal intervals along the circumferential direction, and the arrangement manner of the plurality of insertion pins 13 is matched with the plurality of insertion holes 231; the number of the alignment guide stages 32 and the alignment guide blocks 31 is configured to be the same as the number of the insertion holes 231, and correspondingly, the number of the insertion guide grooves 2121 is the same as the number of the alignment guide stages 32;

the plurality of alignment guide tables 32 are circumferentially and equally spaced on the inner wall of the first connecting piece, and the plurality of alignment guide blocks 31 are circumferentially and equally spaced on the inner wall of the second connecting piece; the circumferential width, the axial length and the winding direction of the plurality of alignment guide planes are the same, and the plurality of alignment guide terminals are positioned in the same cross section.

Wherein, it is understood that the "equal interval" includes "zero interval".

It can be further understood that the circumferential width, the axial length, and the winding direction of the guide plane are all the same, so that the plug connector 10 and the plug socket 20 can be ensured to be smoothly plugged.

Specifically, in this embodiment, the number of the insertion holes 231 and the number of the insertion pins 13 are both N, N is a positive integer greater than or equal to two, an included angle between adjacent insertion holes 231 and between adjacent insertion pins 13 is 360/N degrees, and when the alignment guide block 31 slides from the head end of the alignment guide surface 321 to the guide opening 21211, the counter force provided by the alignment guide surface 321 drives the second connecting member to rotate 360/N degrees; through the arrangement, the second connecting piece only needs to rotate by less than 360/N degrees at most to realize the alignment of the pin 13 and the jack 231, and the pin 13 is inserted into the jack 231 and then can realize the electric connection function of the connector.

Further, in order to allow the aligning guide block 31 slid out by the aligning guide terminal to be easily slid into the guide opening 21211, each of the aligning guide surfaces 321 is connected to a side edge of one of the guide openings 21211; a plurality of the guide openings 21211 are located on the same cross section of the second connector.

Further, as shown in fig. 4, the alignment guide terminal is a pointed end, so that the material is saved, and the alignment guide block 31 can easily slide into the guide opening 21211.

Further, in this embodiment, the plug connector 10 includes four pins 13, the socket 20 includes four sockets 231, and an included angle between adjacent pins 13 or adjacent sockets 231 is 90 degrees; the second connector only needs to rotate by less than 90 degrees at most, and the alignment of the pin 13 and the socket 231 can be realized.

Further, in another embodiment of the connector of the present invention, the pins 13 have specific plugging requirements, that is, each pin 13 needs to be butted against a specific socket 231 to realize the electrical connection function of the connector.

Specifically, the number of the alignment guide tables 32 is one; the head end of the alignment guide surface 321 spirally winds around the inner wall of the second plugging end 111 for a circle and then reaches the terminal end of the alignment guide surface 321; the number of the insertion guide grooves 2121 is one, and the guide opening 21211 is connected with the alignment guide terminal;

the plurality of sockets 231 includes a first socket 231, the plurality of pins 13 includes a first pin 13, and the insertion guide slot 2121 is configured such that the first pin 13 is axially aligned with the first socket 231 when the alignment guide block 31 slides over the guide opening 21211.

Specifically, in this embodiment, the plug 10 includes four pins 13, the four pins 13 include a first pin 13, a second pin 13, a third pin 13, and a fourth pin 13 that are sequentially and equally spaced along the circumferential direction, the socket 20 includes four sockets 231, and the four sockets 231 include a first socket 231, a second socket 231, a third socket 231, and a fourth socket 231 that are sequentially and equally spaced along the circumferential direction; in this embodiment, when the alignment guide block 31 moves to the guide opening 21211, the first pins 13 are aligned with the first socket 231 … … and the fourth pins 13 are aligned with the fourth sockets 231 one by one.

Further, as shown in fig. 1 to 8, in another embodiment of the connector of the present invention, in order to make the mating connection between the plug 10 and the socket 20 more labor-saving and reliable, the alignment guide block 31 includes a guide block body and a ball 43; the ball 43 is rotationally connected with the guide block body; when the first inserting end 211 is inserted into the second inserting end 111, the ball 43 abuts against the alignment guide surface 321; when the aligning guide block 31 slides on the aligning guide surface 321, the balls 43 rotate relative to the guide block body. Due to the arrangement, the sliding friction force between the alignment guide block 31 and the alignment guide table 32 can be reduced, so that the plugging process is more labor-saving; meanwhile, the alignment guide block 31 can be prevented from being clamped and stopped on the alignment guide table 32 in the plugging process, so that the plugging process of the connector is more reliable.

Further, as shown in fig. 2 to 8, in another embodiment of the connector of the present invention, in order to improve the radial butting tolerance of the connector, the inner diameter of the socket 231 is slightly larger than the outer diameter of the pin 13, an elastic conductive gasket 2311 having a radial opening and closing elastic force is fixedly disposed on the inner wall of the socket 231, and when the pin 13 contacts the elastic gasket, the pin 13 can be electrically connected to the socket 231; with such an arrangement, even if the central axis of the pin 13 is not aligned with the central axis of the socket 231 when the second inserting end 111 is inserted into the secondary inserting position due to a small dimension error of the alignment guide assembly caused by manufacturing reasons, the pin 13 can be inserted into the socket 231 and electrically connected with the socket 231, so that the blind-mate push-pull self-locking connector can accommodate a certain radial docking error.

In the description herein, it is to be understood that the terms "upper", "lower", "left", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings, and are used for convenience of description and simplicity of operation only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.