CN210404202U

CN210404202U - Direct-insertion self-locking connector

Info

Publication number: CN210404202U
Application number: CN201921740171.2U
Authority: CN
Inventors: 朱博; 王晓颖
Original assignee: Liaoning Zhonghang Xinnuo Technology Co ltd
Current assignee: Liaoning Zhonghang Xinnuo Technology Co ltd
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-04-24
Anticipated expiration: 2029-10-17

Abstract

The utility model relates to a cut straightly from locking-type connector belongs to the electrical apparatus connector, and it includes socket and plug, and its technical essential is: the outer sleeve I of the socket and the cylindrical connecting shell I are inserted into an annular insertion gap of the plug, the plug convex nail reaches a self-locking groove position for limiting the axial displacement of the plug convex nail through the corresponding socket groove, and the insertion end face of the cylindrical connecting shell I abuts against the wave spring and compresses the wave spring. The utility model discloses not only insert and close fast, increase self-locking function in place moreover, the reliability is high.

Description

Direct-insertion self-locking connector

Technical Field

The utility model relates to an electrical apparatus connector, especially a cut straightly from locking-type connector.

Background

The existing electrical connector connection modes basically include the following three types: 1. a direct insertion type; 2. a buckling mode; 3. is of a screw thread type. However, there are the following problems: the direct-insertion connector is quick to insert and separate, but does not have a locking structure, so that the reliability is lower; the snap-in connector is provided with a quick screwing locking structure, so that the reliability is high, but the abrasion loss of the connecting part is large, and the mechanical life is short; threaded connectors are the most reliable and have long mechanical life, but are relatively slow and inefficient to insert. In view of this, there is still a need for improvements in existing electrical connectors.

Disclosure of Invention

The utility model aims at providing a solve the cut-through of the above-mentioned problem that current electrical apparatus connector exists from locking-type connector, not only insert to close fast, increase self-locking function that targets in place moreover, the reliability is high.

The technical scheme of the utility model is that:

the utility model provides a cut straightly from locking-type connector, includes socket and plug, and its technical essential is: the socket comprises a cylindrical connecting shell I and an outer sleeve I, wherein the outer sleeve I is sleeved on an inserting section of the cylindrical connecting shell I and is axially positioned, a circumferential spring limiting structure allowing the outer sleeve I and the cylindrical connecting shell I to rotate relatively and set for displacement is arranged between the outer sleeve I and the cylindrical connecting shell I, a plurality of nonlinear socket grooves are uniformly formed in the outer sleeve I, the starting points of the socket grooves are inserting ends of the outer sleeve I and extend towards the axial positioning end of the outer sleeve I, and inflection points are arranged at the end points of the socket grooves to form self-locking groove positions; the plug comprises a cylindrical connecting shell II, an outer sleeve II and a wave spring, wherein the outer sleeve II is sleeved on an inserting section of the cylindrical connecting shell II and is axially positioned, an annular inserting gap is formed between the inner wall of the outer sleeve II and the outer wall of the cylindrical connecting shell II, the wave spring is sleeved on the cylindrical connecting shell II and is positioned at the inner end of the annular inserting gap, and plug convex nails with the same number as that of socket grooves are uniformly arranged at the position, corresponding to the outer end of the annular inserting gap, of the inner wall of the outer sleeve II; the outer sleeve I and the cylindrical connecting shell I are inserted into an annular insertion gap of the plug, the plug convex nail reaches a self-locking groove position limiting the axial displacement of the plug convex nail through the corresponding socket groove, and the insertion end face of the cylindrical connecting shell I abuts against the wave spring and compresses the wave spring.

The direct-insertion self-locking connector comprises an outer sleeve, wherein the inner diameter of the outer sleeve is equal to or larger than the outer diameter of the outer sleeve, the inner diameter of the plug-in section of the cylindrical connecting shell is equal to or larger than the outer diameter of the plug-in section of the cylindrical connecting shell, the inner wall of the plug-in section of the cylindrical connecting shell is evenly provided with a plurality of plug-in guide strips, and the outer wall of the plug-in section of the cylindrical connecting shell is evenly provided with a plurality of plug-in guide grooves corresponding to the plug-in guide strips.

Foretell cut straightly from locking-type connector, circumference spring limit structure is including locating annular axial spacing boss on the outer wall that grafting section was kept away from to cylindric connection shell I, locating I tip of overcoat and suit wide mouthful of joint on annular axial spacing boss, locating the axial installation on the annular axial spacing boss and leading to the communicating arc circumference constant head tank in groove with the axial installation, evenly locate wide mouthful of joint inner wall anterior and lead to the position key I that the groove got into in the arc circumference constant head tank through the axial installation, locate in the arc circumference constant head tank and extrude the reset spring of position key I, the arc center line of arc circumference constant head tank and the coincidence of the central line of cylindric connection shell I, the length of arc circumference constant head tank is greater than the circumference width that the groove was led to the axial. During the equipment, I rotations of overcoat behind the navigation key I entering arc circumference constant head tank drive navigation key I and reachd one end in the arc circumference constant head tank, installs reset spring again, makes reset spring top lean on between arc circumference constant head tank inner wall and navigation key I, at socket and plug cartridge in-process, along with the plug protruding nail reachs the auto-lock trench via the socket recess that corresponds, I atress rotations of overcoat, I oppression reset spring of navigation key realize targetting in place the auto-lock.

In the direct-insertion self-locking connector, the position, corresponding to the end face of the wide-mouth joint, of the cylindrical connecting shell I is provided with the retainer ring groove I, and the retainer ring I for axially positioning the outer sleeve I is arranged in the retainer ring groove I.

Foretell cut straightly from locking-type connector, interval arrangement fender circle groove II and axial positioning groove on the one end outer wall that grafting section was kept away from to cylindric connection shell II, evenly be equipped with a plurality of circumference constant head tanks on the II outer walls of cylindric connection shell between fender circle groove II and the axial positioning groove, evenly establish a plurality of installation through grooves that correspond with the circumference constant head tank between II tip of the cylindric connection shell that keep away from it in fender circle groove II, II tip that keep away from the grafting section of overcoat are equipped with the undergauge joint and the undergauge joint the inner wall be equipped with circumference constant head tank complex navigation key II, navigation key II is close the terminal surface of grafting section and is met with the terminal surface of axial positioning groove, be equipped with retaining ring II to the undergauge joint axial positioning of overcoat II in the fender circle groove. When the outer sleeve II is assembled with the cylindrical connecting shell II, the positioning key II reaches the circumferential positioning groove through the through groove and is axially limited by the axial positioning groove.

In the above direct-insertion self-locking connector, the socket groove is composed of an oblique line section communicated with the starting point, an axial straight line section communicated with the oblique line section, and a radial straight line section communicated with the axial straight line section, the self-locking slot position is located at the tail end of the radial straight line section, and the self-locking slot position and the starting point of the socket groove are located on the same side of the axial straight line section.

Foretell cut straightly from locking-type connector, the distance that groove was led to arc circumference constant head tank one end apart from the axial installation is greater than the distance that the groove was led to arc circumference constant head tank other end apart from the axial installation, navigation key I is located the one end of leading to groove arc circumference constant head tank far away apart from the axial installation.

Foretell cut straightly from locking-type connector, the wide mouthful of joint surface of overcoat I is equipped with unblock direction of rotation mark, and the direction that unblock direction of rotation mark instructed is the direction of the I compression reset spring of navigation key of overcoat I, and the plug convex pin is influenced by ripple spring pretightning force and is broken away from the auto-lock trench, accomplishes plug and socket separation.

The utility model has the advantages that:

on keeping original direct plug connector and inserting the characteristic basis of closing fast, increase self-locking function that targets in place, the locking function is practical reliable, has expanded the application of product, and its separation mode is simple easily to operate, rotatory socket's overcoat I can, do not need professional technical training to operate, satisfy all kinds of customer crowd's user demand.

Drawings

Fig. 1 is an isometric view of the socket and plug of the present invention in a disengaged state;

fig. 2 is a front view of the socket and the plug of the present invention in a separated state;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 3;

FIG. 6 is an isometric view of the barrel coupling housing I of the receptacle;

FIG. 7 is an axial sectional view of a cylindrical connection housing I;

FIG. 8 is an isometric view of the outer sleeve I of the receptacle;

FIG. 9 is an axial cross-sectional view of the outer jacket I;

fig. 10 is an isometric view of the cylindrical connection housing ii of the plug;

FIG. 11 is an axial cross-sectional view of the cylindrical connecting shell II;

FIG. 12 is an isometric view of sleeve II;

FIG. 13 is an axial cross-section of the outer jacket II;

FIG. 14 is an isometric view of the combination of a receptacle and a plug;

FIG. 15 is a front view of the socket and the plug in combination;

FIG. 16 is a left side view of FIG. 15;

FIG. 17 is a sectional view taken along line B-B of FIG. 16;

FIG. 18 is a cross-sectional view taken along line D-D of FIG. 16;

fig. 19 is a schematic view of the socket of the present invention before mating with a plug;

FIG. 20 is a schematic view of the receptacle and plug initially mated;

FIG. 21 is a schematic illustration of a receptacle mated with a plug;

FIG. 22 is a schematic view of the receptacle mated with the plug;

fig. 23 is a schematic view illustrating the unlocking and separation of the socket and the plug of the present invention;

fig. 24 is a schematic view showing the completion of unlocking and separating the receptacle from the plug.

In the figure: a socket 1; the device comprises a cylindrical connecting shell I1001, an annular axial limiting boss 100101, an inserting guide strip 100102, an arc-shaped circumferential positioning groove 100103, an axial installation through groove 100104 and a retainer ring groove I100105; the locking device comprises a jacket I1002, a wide connector 100201, a socket groove 100202, an oblique line segment 100202a, an axial straight line segment 100202b, a radial straight line segment 100202c, a positioning key I100203 and an unlocking rotation direction mark 100204;

a plug 2; a cylindrical connecting shell II 2001, a mounting through groove 200101, an inserting guide groove 200102, a retainer groove II 200103, a circumferential positioning groove 200104 and an axial positioning groove 200105; a jacket II 2002, a reducing joint 200201, a positioning key II 200202 and a plug convex nail 200203;

a wave spring 3; an annular insertion gap 4; a retainer ring II 5; a check ring I6; a return spring 7; self-locking slot 8.

Detailed Description

As shown in fig. 1-18, the direct-insertion self-locking connector comprises a socket 1 and a plug 2.

The socket 1 comprises a cylindrical connecting shell I1001 and a jacket I1002, the jacket I1002 is sleeved on an inserting section of the cylindrical connecting shell I1001 and is axially positioned, a circumferential spring limiting structure allowing the jacket I1002 and the cylindrical connecting shell I1001 to rotate relatively and set for displacement is arranged between the jacket I1002 and the cylindrical connecting shell I1001, a plurality of non-linear socket grooves 100202 are uniformly formed in the jacket I1002, the starting point of each socket groove 100202 is the inserting end of the jacket I1002 and extends towards the axially positioned end of the jacket I1002, and an inflection point is arranged at the end point of each socket groove to form a self-locking groove 8. Referring to fig. 9, in this embodiment, the socket groove 100202 includes a slanted line portion 100202a connected to the starting point, an axial straight line portion 100202b connected to the slanted line portion 100202a, and a radial straight line portion 100202c connected to the axial straight line portion 100202b, the self-locking slot 8 is located at the end of the radial straight line portion 100202c, and the self-locking slot 8 and the starting point of the socket groove 100202 are located on the same side of the axial straight line portion 100202 b.

The plug 2 comprises a cylindrical connecting shell II 2001, an outer sleeve II 2002 and a wave spring 3, wherein the outer sleeve II 2002 is sleeved on an insertion section of the cylindrical connecting shell II 2001 and is axially positioned, an annular insertion gap 4 is formed between the inner wall of the outer sleeve II 2002 and the outer wall of the cylindrical connecting shell II 2001, the wave spring 3 is sleeved on the cylindrical connecting shell II 2001 and is located at the inner end of the annular insertion gap 4, and plug convex nails 200203 with the number equal to that of socket grooves 100202 are uniformly arranged at the position, corresponding to the outer end of the annular insertion gap 4, of the inner wall of the outer sleeve II 2002.

The outer sleeve I1002 and the cylindrical connecting shell I1001 are inserted into the annular insertion gap 4 of the plug 2, the plug convex nails 200203 reach the self-locking groove positions 8 limiting the axial displacement of the plug convex nails via the corresponding socket grooves 100202, and the insertion end face of the cylindrical connecting shell I1001 abuts against the wave spring 3 and compresses the wave spring 3. The inner diameter of the outer sleeve II 2002 is equal to or larger than the outer diameter of the outer sleeve I1002, the inner diameter of the inserting section of the cylindrical connecting shell I1001 is equal to or larger than the outer diameter of the inserting section of the cylindrical connecting shell II 2001, a plurality of inserting guide strips 100102 are uniformly arranged on the inner wall of the inserting section of the cylindrical connecting shell I1001, and a plurality of inserting guide grooves 200102 corresponding to the inserting guide strips 100102 are uniformly arranged on the outer wall of the inserting section of the cylindrical connecting shell II 2001. The structure arrangement of the plugging guide strip 100102 and the plugging guide groove 200102 further ensures the accuracy and rapidness in plugging operation.

In this embodiment, the circumferential spring limiting structure includes an annular axial limiting boss 100101 disposed on the outer wall of the cylindrical connecting shell i 1001 far from the splicing section, a wide-mouth joint 100201 disposed at the end of the outer sleeve i1002 and sleeved on the annular axial limiting boss 100101, an axial installation through groove 100104 disposed on the annular axial limiting boss 100101, an arc circumferential positioning groove 100103 communicated with the axial installation through groove 100104, a positioning key i 100203 uniformly disposed on the front portion of the inner wall of the wide-mouth joint 100201 and entering the arc circumferential positioning groove 100103 through the axial installation through groove 100104, and a return spring 7 disposed in the arc circumferential positioning groove 100103 and pressing the positioning key i 100203, the arc center line of the arc circumferential positioning groove 100103 coincides with the center line of the cylindrical connecting shell i 1001, and the length of the arc circumferential positioning groove 100103 is greater than the circumferential width of the axial installation through groove 100104. The distance from one end of the arc-shaped circumferential positioning groove 100103 to the axial installation through groove 100104 is greater than the distance from the other end of the arc-shaped circumferential positioning groove 100103 to the axial installation through groove 100104, and the positioning key I100203 is located at one end of the arc-shaped circumferential positioning groove 100103 which is far away from the axial installation through groove 100104. During the equipment, I1002 rotations of overcoat behind positioning key I100203 entering arc circumference constant head tank 100103 drive positioning key I100203 and reach one end in the arc circumference constant head tank 100103, install reset spring 7 again, make reset spring 7 top lean on between arc circumference constant head tank 100103 inner wall and positioning key I100203. I1001 of cylindric connection shell corresponds wide mouthful of joint 100201 terminal surface department and is equipped with fender circle groove I100105, be equipped with I1002 axial positioning's of overcoat retaining ring I6 in the fender circle groove I100105.

The outer wall of one end, far away from the inserting section, of the cylindrical connecting shell II 2001 is provided with a retaining ring groove II 200103 and an axial positioning groove 200105 at intervals, the outer wall of the cylindrical connecting shell II 2001 between the retaining ring groove II 200103 and the axial positioning groove 200105 is evenly provided with a plurality of circumferential positioning grooves 200104, and a plurality of installation through grooves 200101 corresponding to the circumferential positioning grooves 200104 are evenly arranged between the retaining ring groove II 200103 and the end part, close to the retaining ring groove II 2001, of the cylindrical connecting shell II 2001. The end part, far away from the plugging section, of the outer sleeve II 2002 is provided with a reducing connector 200201, the inner wall of the reducing connector 200201 is provided with a positioning key II 200202 matched with the circumferential positioning groove 200104, the end face, close to the plugging section, of the positioning key II 200202 is connected with the end face of the axial positioning groove 200105, and a retainer ring II 5 for axially positioning the reducing connector 200201 of the outer sleeve II is arranged in the retainer ring groove II 200103. When the outer sleeve II 2002 is assembled with the cylindrical connecting shell II 2001, the positioning key II 200202 reaches the circumferential positioning groove 200104 through the installation through groove 200101 and is axially limited by the axial positioning groove 200105.

The wide mouthful of joint 100201 surface of overcoat I is equipped with unblock direction of rotation mark 100204, and the direction that unblock direction of rotation mark instructed is the orientation of the I100203 compression reset spring 7 of position key of overcoat I.

In this embodiment, the number of the socket grooves 100202 and the number of the plug pins 200203 are three. The number of the axial installation through grooves 100104, the number of the arc-shaped circumferential positioning grooves 100103 and the number of the positioning keys I100203 are three respectively. The number of the installation through grooves 200101, the number of the circumferential positioning grooves 200104 and the number of the positioning keys II 200202 are three respectively. In the connector, the elastic elements (the return spring 7 and the corrugated spring 3) can be replaced by other structures capable of realizing the return function, such as plastic elastic sheets, rubber elastic pieces, vacuum devices and the like.

During the equipment socket 1, I1002 covers of overcoat is on the grafting section of cylindric connection shell I1001, the navigation key I100203 of overcoat I1002 passes the logical groove 100104 of the axial installation of cylindric connection shell I1001, reach arc circumference constant head tank 100103, twist back overcoat I1002 to navigation key I100203 apart from the far away one end of the arc circumference constant head tank 100103 of the logical groove 100104 of axial installation, pack into the remaining space of arc circumference constant head tank 100103 respectively with three reset spring 7 in, install retaining ring I6 at last and fix a position overcoat I1002 in retaining ring groove I100105.

When the plug 2 is assembled, the outer sleeve II 2002 is sleeved on the inserting section of the cylindrical connecting shell II 2001, the positioning key II 200202 of the outer sleeve II 2002 reaches the circumferential positioning groove 200104 through the installation through groove 200101 and is axially limited by the axial positioning groove 100104, then the retaining ring II 5 is installed in the retaining ring groove II 5 to completely position the outer sleeve II 2002, and finally the corrugated spring 3 is installed at the inner end of the annular inserting gap 4 formed by the outer sleeve II 2002 and the cylindrical connecting shell II 2001.

The butt joint and self-locking process of the plug 2 and the socket 1 is as follows:

referring to fig. 19, the header 2 and the socket 1 are in an original state before being mated;

referring to fig. 20, the plug 2 and the receptacle 1 are aligned and mated;

referring to fig. 21, in the process of mating the receptacle 1 and the header 2, as the plug pins 200203 pass through the corresponding receptacle slots 100202, the housing i1002 is forced to rotate, and the positioning keys i 100203 press the return spring 7;

referring to fig. 22, when the plug pins 200203 are butted in place, when the plug pins 200203 reach the radial straight line segment 100202c of the socket groove 100202, the reset spring 7 reversely pushes the positioning key i 100203, the socket groove 100202 is reset under the action of the pretightening force released by the reset spring 7, the outer sleeve i1002 reversely rotates to drive the self-locking slot 8 to reach the plug pins 200203, and the plug pins 200203 are locked to complete the connection of the plug 2 and the socket 1, so that the plug 2 and the socket 1 are prevented from being loosened.

The unlocking and separating process of the plug 2 and the socket 1 is as follows:

referring to fig. 23, the plug housing I1002 of the receptacle is twisted in the direction indicated by the unlocking rotation direction mark 100204, the housing I1002 compresses the return spring 7, and the plug stud 200203 leaves the self-locking slot 8 and is biased by the ripple spring 3, thereby completing the unlocking of the plug 2 and the receptacle 1200203.

Referring to fig. 24, the plug 2 is pulled out, and the separation of the plug 2 and the socket 1 is completed, which is convenient and quick.

Claims

1. The direct-insertion self-locking connector comprises a socket and a plug, and is characterized in that: the socket comprises a cylindrical connecting shell I and an outer sleeve I, wherein the outer sleeve I is sleeved on an inserting section of the cylindrical connecting shell I and is axially positioned, a circumferential spring limiting structure allowing the outer sleeve I and the cylindrical connecting shell I to rotate relatively and set for displacement is arranged between the outer sleeve I and the cylindrical connecting shell I, a plurality of nonlinear socket grooves are uniformly formed in the outer sleeve I, the starting points of the socket grooves are inserting ends of the outer sleeve I and extend towards the axial positioning end of the outer sleeve I, and inflection points are arranged at the end points of the socket grooves to form self-locking groove positions; the plug comprises a cylindrical connecting shell II, an outer sleeve II and a wave spring, wherein the outer sleeve II is sleeved on an inserting section of the cylindrical connecting shell II and is axially positioned, an annular inserting gap is formed between the inner wall of the outer sleeve II and the outer wall of the cylindrical connecting shell II, the wave spring is sleeved on the cylindrical connecting shell II and is positioned at the inner end of the annular inserting gap, and plug convex nails with the same number as that of socket grooves are uniformly arranged at the position, corresponding to the outer end of the annular inserting gap, of the inner wall of the outer sleeve II; the outer sleeve I and the cylindrical connecting shell I are inserted into an annular insertion gap of the plug, the plug convex nail reaches a self-locking groove position limiting the axial displacement of the plug convex nail through the corresponding socket groove, and the insertion end face of the cylindrical connecting shell I abuts against the wave spring and compresses the wave spring.

2. An in-line self-locking connector as recited in claim 1, wherein: II internal diameters of overcoat are equal to or are greater than I external diameters of overcoat, the internal diameter of I grafting section of cylindric connection shell is equal to or is greater than the external diameter of II grafting sections of cylindric connection shell, the inner wall of I grafting section of cylindric connection shell evenly is equipped with a plurality of grafting guide strips, the outer wall of II grafting sections of cylindric connection shell evenly is equipped with a plurality of grafting guide ways that correspond with the grafting guide strip.

3. An in-line self-locking connector as recited in claim 1, wherein: circumferential spring limit structure is including locating the spacing boss of annular axial on the outer wall that grafting section was kept away from to cylindric connection shell I, locating I tip of overcoat and suit wide mouthful of joint on the spacing boss of annular axial, locate the axial installation on the spacing boss of annular axial and lead to the groove and lead to communicating arc circumference constant head tank with the axial installation, evenly locate wide mouthful of joint inner wall anterior and lead to the position key I that the groove got into in arc circumference constant head tank through the axial installation, locate in the arc circumference constant head tank and extrude the reset spring of position key I, the arc center line of arc circumference constant head tank and the coincidence of the central line of cylindric connection shell I, the length of arc circumference constant head tank is greater than the circumference width that the groove was led to in the.

4. An in-line self-locking connector as recited in claim 1, wherein: the first corresponding wide mouthful of joint terminal surface department of cylindric connection shell is equipped with fender circle groove I, be equipped with I axial positioning's of overcoat retaining ring I in the fender circle groove I.

5. An in-line self-locking connector as recited in claim 1, wherein: spacer ring groove II and axial positioning groove are arranged to the one end outer wall that grafting section was kept away from to cylindric connecting shell II, evenly are equipped with a plurality of circumference constant head tanks on II outer walls of cylindric connecting shell between retaining ring groove II and the axial positioning groove, II installation through grooves that a plurality of and circumference constant head tank correspond are evenly established to II tip of cylindric connecting shell that keep away from it in retaining ring groove, II tip of overcoat keep away from the grafting section be equipped with the undergauge connect and the undergauge connect the inner wall be equipped with circumference constant head tank complex navigation key II, navigation key II is close the terminal surface of grafting section and is met with the terminal surface of axial positioning groove, II in the retaining ring inslot are equipped with the undergauge joint axial positioning's of overcoat II retaining ring II.

6. An in-line self-locking connector as recited in claim 1, wherein: the socket groove is composed of an oblique line section communicated with a starting point, an axial straight line section communicated with the oblique line section and a radial straight line section communicated with the axial straight line section, the self-locking slot position is located at the tail end of the radial straight line section, and the self-locking slot position and the starting point of the socket groove are located on the same side of the axial straight line section.

7. An in-line self-locking connector as recited in claim 3, wherein: arc circumference constant head tank one end is greater than the distance that the groove was led to the axial installation apart from the distance that the groove was led to the axial installation in arc circumference constant head tank other end, navigation key I is located the one end of leading to the groove arc circumference constant head tank far away apart from the axial installation.

8. An in-line self-locking connector as recited in claim 3, wherein: the wide mouthful of joint surface of overcoat I is equipped with unblock direction of rotation mark, and the direction that unblock direction of rotation mark instructed is the direction of I compression reset spring of navigation key of overcoat I.