CN206988646U - A kind of quick connector - Google Patents

Abstract

A kind of quick connector, including pin end and female joint, the quick connector also include snap lock fastener, and the pin end is connected in the female joint by the snap lock fastener；The pin end is hollow structure, the pin end includes public connecting tube, first hose transition, first annular raised and the second annular protrusion, the female joint is hollow structure, the female joint includes hatch frame, female connecting tube and the second hose transition, the snap lock fastener includes finger press, elasticity arm and latch part, the finger press is arc and matched with card interface, the snap lock fastener is out of card interface insertion tube insert port, the finger press is located at the card interface, the elasticity arm and latch part are located in the pipe insert port.The utility model provides a kind of quick connector difficult for drop-off, simple in construction, having enough confining forces.

Description

A kind of quick connector

Technical field

The utility model belongs to technical field of pipeline connection, more particularly, to a kind of quick connector.

Background technology

Connector is a kind of device for being used for conveying the fluids such as gas, liquid, and usual connector is by pipe, pipe connection Part, valve etc. are formed by connecting；In the prior art, the arrangement in order to facilitate connector and installation, the side of generally use pipe joint Formula is completed, and the connected mode of existing joint has threaded connection, welding and card pressure etc., in the operation installation of reality, there is one A little problems, such as joint manufacture, installation is inconvenient, loads and unloads the problems such as difficult, installation rate is slow, snap close piece confining force is inadequate, is Solve these problems, quick connector arises at the historic moment.

In current existing connector, snap close piece is all submerged this kind of quick connector of female joint, there is suitable one Snap close piece is divided to be insufficient to assure that pipeline is reliably connected to confining force caused by pin end.Simultaneously after being dismounted for multiple times, snap close piece holds Original confining force is easily lost, so connection can be disconnected.

The content of the invention

In order to overcome existing quick connector technology to exist caused by snap close piece, confining force is inadequate, and the utility model provides A kind of quick connector difficult for drop-off, simple in construction, that there is enough confining forces.

Technical scheme is used by the utility model solves its technical problem：

A kind of quick connector, including pin end and female joint, the quick connector also includes snap lock fastener, described Pin end is connected in the female joint by the snap lock fastener；

The pin end is hollow structure, and the pin end includes public connecting tube, the first hose transition, first annular convex Rise and the second annular protrusion, the front end of the public connecting tube are provided with first hose transition, second annular protrusion is set The middle front part in the public connecting tube is put, the first annular raised rear side for being located at the second annular protrusion is described first annular It is Access Division between raised and the second annular protrusion；The external diameter of second annular protrusion is more than described first annular raised outer Footpath；

The female joint is hollow structure, and the female joint includes hatch frame, female connecting tube and the second hose transition, The front end of female connecting tube is provided with the hatch frame, and the rear end of female connecting tube is provided with the second hose transition, described Hatch frame is axially arranged with the pipe insert port of insertion before and after, and the both sides up and down of the hatch frame are respectively equipped with card interface, and two Individual card interface arrangement symmetrical above and below, the card interface connect with the pipe insert port；The card interface is arc port, and the mother is even Guide rail is respectively symmetrically provided with the left and right sides of the front end face of adapter, the guide rail lateral arrangement simultaneously extend into the pipe insert port It is interior；

The snap lock fastener includes finger press, elasticity arm and latch part, the finger press be arc and with Card interface matches, and the finger press is provided with two, is upper finger press and lower finger press respectively, it is described on Finger press and lower finger press arrangement symmetrical above and below；The elasticity arm is provided with four, respectively the first upper elasticity arm, Second upper elasticity arm, the first down spring arm and the second down spring arm；The first upper elasticity arm is left with the second upper elasticity arm The right side is arranged symmetrically, the first upper elasticity arm and the first down spring arm arrangement symmetrical above and below, the first down spring arm with The second down spring arm is symmetrically arranged, the second upper elasticity arm and the second down spring arm arrangement symmetrical above and below； The latch part includes arc and arc block, and the inner concave of the arc block is arranged towards pin end and is located at the arc Front side and on the inner concave of arc, the latch part has been located at two, is left latch part and right latch part respectively, The left latch part is symmetrically arranged with the right latch part, and the top of the arcuate surface of the arc of the left latch part passes through The first upper elasticity arm is connected with the bottom surface left end of the upper finger press, the arcuate surface of the arc of the left latch part Bottom be connected by the first down spring arm with the top surface left end of the lower finger press, the arc of the right latch part The top of the arcuate surface of plate is connected by the second upper elasticity arm with the bottom surface right-hand member of the upper finger press, the right lock The bottom of the arcuate surface of the arc of buckle is connected by the second down spring arm and the top surface right-hand member of the lower finger press Connect, the lower end of the first upper elasticity arm is connected with the upper end of the first down spring arm, the lower end of the second upper elasticity arm It is connected with the upper end of the second down spring arm；

Guide groove, the arc block of the left latch part and the arc block shape of right lock are provided with the middle part of the rear side of the arc Into the pin end targeting port moved forward and backward for pin end；

Out of card interface insertion tube insert port, the finger press is located at the card interface snap lock fastener, The elasticity arm and latch part are located in the pipe insert port, and the pin end sequentially passes through pipe insert port, public access from front to back Head targeting port and female connecting tube, the inner concave of the rear side of the arc are bonded with the first annular raised trailing flank, institute The trailing flank that first annular raised leading flank is stated with the arc block is bonded, inner concave and the Access Division of the arc block Outer wall fitting, second annular protrusion is located at the front side of the hatch frame and is bonded with hatch frame, the guide groove With the guide rail clamping；The left and right width of the snap lock fastener is less than the left and right width of the pipe insert port.

Further, the elasticity arm is zigzag.

Further, the elasticity arm includes the first swash plate and the second swash plate, and first swash plate and the second swash plate are perpendicular To arrangement, one end of first swash plate is connected with the finger press, the other end of first swash plate and described second One end connection of swash plate, the other end of second swash plate are connected with arc, and the inclination angle of second swash plate is less than described The inclination angle of first swash plate, the length of first swash plate are less than the length of the second swash plate.

Further, the cross section of the hatch frame is hexagon, and the pipe insert port is also hexagon.

Further, the vertical section of the snap lock fastener is hexagon.

Main beneficial effect of the present utility model is：Pin end and female joint be difficult for drop-off under the confining force of snap close piece, It is simple in construction, easy to use, it is convenient to mount and dismount.

Brief description of the drawings

Fig. 1 is explosive view of the present utility model.

Fig. 2 is the left-hand sectional view of the hatch frame of female joint.

Fig. 3 is the dextrad sectional view of the hatch frame of female joint.

Fig. 4 is the structural representation of snap close piece.

Fig. 5 is dextrad sectional view of the snap close piece in female joint.

Fig. 6 is left-hand sectional view of the snap close piece in female joint.

Fig. 7 is sectional side elevation when pin end is connected with female joint.

Fig. 8 is the left-hand sectional view of pin end and female joint junction.

Fig. 9 is the dextrad sectional view of pin end and female joint junction.

Figure 10 is the sectional view that the latch part of snap close piece departs from the Access Division of pin end.

Embodiment

The utility model is further described below in conjunction with the accompanying drawings.

1~Figure 10 of reference picture, a kind of quick connector, including pin end 3 and female joint, the quick connector also include Snap lock fastener 2, the pin end 3 are connected in the female joint by the snap lock fastener 2；

The pin end 3 is hollow structure, and the pin end 3 includes public connecting tube 31, the first hose transition 35, first The annular protrusion 34 of annular protrusion 32 and second, the front end of the public connecting tube 31 is provided with first hose transition 35, described Second annular protrusion 34 is arranged on the middle front part of the public connecting tube 31, and described first annular raised 32 are located at the second annular protrusion 34 rear side, described first annular raised 32 and second be Access Division between annular protrusion 34；Second annular protrusion 34 External diameter is more than first annular raised 32 external diameter；

The female joint is hollow structure, and the female joint includes hatch frame, female connecting tube 13 connects with the second flexible pipe Portion 14, the front end of female connecting tube 13 are provided with the hatch frame, and the rear end of female connecting tube 13 connects provided with the second flexible pipe Socket part 14, the hatch frame are axially arranged with the pipe insert port 111 of insertion, the difference of both sides up and down of the hatch frame before and after Provided with card interface 12, two card interface arrangements symmetrical above and below, the card interface 12 connects with the pipe insert port；The card interface 12 be arc port, and guide rail 111, the guide rail 111 are respectively symmetrically provided with the left and right sides of the front end face of female connecting tube 13 Lateral arrangement is simultaneously extend into the pipe insert port 11；

The snap lock fastener 2 includes finger press 21, elasticity arm 22 and latch part 23, and the finger press 21 is Arc simultaneously matches with card interface 12, and the finger press 21 is provided with two, is upper finger press and lower finger respectively Press section, the upper finger press and lower finger press arrangement symmetrical above and below；The elasticity arm 22 is provided with four, respectively For the first upper elasticity arm, the second upper elasticity arm, the first down spring arm and the second down spring arm；The first upper elasticity arm with it is described Second upper elasticity arm is symmetrically arranged, the first upper elasticity arm and the first down spring arm arrangement symmetrical above and below, described First down spring arm is symmetrically arranged with the second down spring arm, the second upper elasticity arm and the second down spring arm Arrangement symmetrical above and below；The latch part 23 includes arc and arc block 232, and the inner concave of the arc block 232 is towards public access First 3 arrange and are located at the front side of the arc and are arranged on the inner concave of arc, and the latch part 23 has been located at two, It is left latch part and right latch part respectively, the left latch part is symmetrically arranged with the right latch part, the left latch part The top of arcuate surface of arc be connected by the first upper elasticity arm with the bottom surface left end of the upper finger press, institute The bottom for stating the arcuate surface of the arc of left latch part passes through the first down spring arm and the top surface of the lower finger press Left end is connected, and the top of the arcuate surface of the arc of the right latch part is pressed by the second upper elasticity arm and the upper finger The bottom surface right-hand member connection of splenium, the bottom of the arcuate surface of the arc of the right latch part passes through the second down spring arm and institute The top surface right-hand member connection of lower finger press is stated, the lower end of the first upper elasticity arm and the upper end of the first down spring arm connect Connect, the lower end of the second upper elasticity arm is connected with the upper end of the second down spring arm；

Guide groove 231, the arc block of the left latch part and the arc of right lock are provided with the middle part of the rear side of the arc Block forms the pin end targeting port 24 moved forward and backward for pin end；

For the snap lock fastener 2 out of card interface 12 insertion tube insert port 11, the finger press 21 is located at the card At interface 12, the elasticity arm 22 and latch part 23 are located in the pipe insert port 11, and the pin end 3 is worn successively from front to back Cross pipe insert port 11, pin end targeting port 24 and female connecting tube 13, the inner concave of the rear side of the arc and first ring The trailing flank fitting of shape projection 32, first annular raised 32 leading flank are bonded with the trailing flank of the arc block 232, institute The inner concave for stating arc block 232 is bonded with the outer wall of the Access Division 33, and second annular protrusion 34 is tied positioned at the opening The front side of structure is simultaneously bonded with hatch frame, the guide groove 231 and the clamping of guide rail 111；The left and right of the snap lock fastener 2 Width is less than the left and right width of the pipe insert port 11.

Further, the elasticity arm 22 is zigzag.

Further, the elasticity arm 22 includes the first swash plate 222 and the second swash plate 221, first swash plate 222 and Two swash plates 221 are vertically arranged, and one end of first swash plate 222 is connected with the finger press 21, first swash plate 222 other end is connected with one end of second swash plate 221, and the other end of second swash plate 221 is connected with arc, institute The inclination angle for stating the second swash plate 221 is less than the inclination angle of first swash plate 222, and the length of first swash plate 222 is less than the The length of two swash plates 221.

Further, the cross section of the hatch frame is hexagon, and the pipe insert port 11 is also hexagon.

Further, the vertical section of the snap lock fastener 2 is hexagon.

In the present embodiment, the bottom of the top of the arcuate surface of the arc and the arcuate surface of arc passes through elastic force respectively Arm 22 is connected with the bottom surface of upper finger press, the top surface of lower finger press；The upper end of the first upper elasticity arm and left-hand seat Refer to the bottom surface left end connection of press section, the lower end of the first upper elasticity arm and the top of the arcuate surface of the arc of left latch part Connection, the upper end of the first down spring arm are connected with the bottom of the arcuate surface of the arc of left latch part, first time bullet The lower end of the arm of force is connected with the top surface left end of lower finger press, upper end and the upper finger press of the second upper elasticity arm Bottom surface right-hand member connection, the lower end of the second upper elasticity arm is connected with the top of the arcuate surface of the arc of right latch part, described The upper end of second down spring arm is connected with the bottom of the arcuate surface of the arc of right latch part, the lower end of the second down spring arm It is connected with the top surface right-hand member of lower finger press；The inclination angle of the first upper elasticity arm, the inclination angle of the second down spring arm are equal For acute angle, the inclination angle of the second upper elasticity arm, the inclination angle of the first down spring arm are obtuse angle；The finger press 21 For guiding the action and positioning of connected elasticity arm 22, the elasticity arm 22 is connected with the finger press 21, institute Stating elasticity arm 22 has two pairs, has the Access Division that powerful elastic force can clamp the pin end, and the latch part 23 is connected to The elasticity arm 22, the guide groove 231 are used cooperatively with the guide rail 111, guide the arc block 232 in the guide rail Orientation moves back and forth on 111, and Access Division described in the clamping of arc block 232 simultaneously presses close to described first annular raised 32, so as to rise To the effect quickly connected, the rear portion that the pin end targeting port 24 is used for the pin end 3 moves forward and backward；When the finger When press section 21 is pressed, the second swash plate 221 of the elasticity arm 22 of the same side is connected with each other so as to transmit motion, additionally can be with Power is uniformly applied to the latch part 23.

As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, hatch frame is provided with the card interface 12 of two arrangements symmetrical above and below, For placing snap lock fastener 2；The card interface 12 is just as the shape of finger press 21, the finger press 21 are fitted on the card interface 12, and just fill card interface 12 this breach, and perfection, which is bonded, to be simultaneously fitted together into the card interface 12, two hypotenuses of the hexagon of pipe insert port 11 are easy to the disengaging of snap lock fastener 2, while for placing latch part 23, also just It is fixed in the guide groove 231 on guide rail 111；The guide rail 111 has the effect that：First, it is used for and the guide groove 231 are used cooperatively, and the guide groove 231 moves up kinetic energy in the guide rail 111 and ensures its certainty moved, second, to whole bullet Property snap close piece 2 play the role of positioning, and because the guide groove 231 is notch geometry, just card jail is in the guide rail 111 Both sides on, so as to play a fixation.

As shown in figure 4, the finger press 21 is to match with the hexagonal shape of female joint, the finger press 21 horizontal edge is pressed for finger, and two hypotenuses are fitted on the card interface 12, oblique for the effect of filling a vacancy, the second of elasticity arm The inclination angle of plate 221 and first swash plate 222 is all 60 degree, and design bends shape when squatting when coming from people's take-off, applies bionical Learn principle, this shape helps to maintain the stability of power, while can fast powerful the latch part 23 is departed from the public access The connection of first 3 Access Division, the pin end 3 and the female joint 1 is reliably unreliable to be the latch part 23, the guiding Groove 231 coordinates the guide rail 111 to use, and is moved above in guide rail 111, and blocks jail on the both sides of guide rail 111, the arc The trailing flank of shape block 232 can paste jail well on first annular raised 32 leading flank, play axial restraint effect, together Shi Suoshu arcs are circumferentially fixed for serving to first annular raised 32 periphery, so as to ensure the reality of connection It is existing.

As shown in fig. 7, it is equipped with O-ring seal 131, inner shield ring on the inwall of female connecting tube 13 in female joint 1 132, safety collar 133, the O-ring seal has two, respectively inner seal ring and exterior seal ring, plays two way seal, institute Stating inner seal ring prevents liquid from flowing out, and the exterior seal ring prevents external contaminants from entering；Between inner seal ring and exterior seal ring Inner shield ring 132 is equipped with, the inner shield ring 132 plays buffer action, for preventing temperature rise from causing phase between O-ring seal Mutually stick；The safety collar 133 plays two, first, fixed O-ring seal, prevents O-ring seal from moving, second, snap lock Fastener 2 plays clamping action to the first annular projection 32 of pin end 3, and axle is played to the pin end part connected into the female joint 1 To fixation and prevent the axial float of pin end 3；The rear portion of the female joint 1 is the second hose transition 14, is passed through Annular anti-skid bulge bites corresponding hose inner wall thereon, so as to realize connection.

As shown in Fig. 1, Fig. 8, Fig. 9 and Figure 10, only the press section 21 of the snap lock fastener 2 need to be directed at the card interface 12, the relative pressing finger press 21 of finger of assembly crewman, related latch part 23 inside contracts, and is so easy to the snap lock fastener 2 enter the card interface 12, and the snap lock fastener 2 slips into pipe insert port 11, until lower finger press 21 reaches opening knot The card interface of structure bottom, the guide rail 111 is between upper and lower two card interfaces；

Now, guide groove 231 is snapped on guide rail 111, is so achieved that assembling；If the pin end 3 need to be taken out, only Finger need to be pressed inward against to the horizontal edge of finger press 21, such power will be applied to the elasticity arm 22, and elasticity arm 22 is pressed Contracting, adhesion are delivered to the latch part 23, the latch part 23 can be made to depart from the Access Division of the pin end, so as to realize State the disconnection of pin end 3 and the female joint 1.

The utility model can be applied to vehicle fuel pipeline, and male connecting tube 31 and female connecting tube 13 can be durable metals The termination of pipe, such as the metal tube for fuel conduit, however, quick connector can also use rigid plastic material or other are normal Injection molded material is made, to be connected in the usual way with hose line or pipeline.

Claims (5)

1. a kind of quick connector, including pin end and female joint, it is characterised in that：The quick connector also includes snap lock Fastener, the pin end are connected in the female joint by the snap lock fastener；

The pin end is hollow structure, the pin end include public connecting tube, the first hose transition, it is first annular raised and Second annular protrusion, the front end of the public connecting tube are provided with first hose transition, and second annular protrusion is arranged on The middle front part of the public connecting tube, the first annular raised rear side for being located at the second annular protrusion, the first annular projection It is Access Division between the second annular protrusion；The external diameter of second annular protrusion is more than the first annular raised external diameter；

The female joint is hollow structure, and the female joint includes hatch frame, female connecting tube and the second hose transition, described The front end of female connecting tube is provided with the hatch frame, and the rear end of female connecting tube is provided with the second hose transition, the opening Structure is axially arranged with the pipe insert port of insertion before and after, and the both sides up and down of the hatch frame are respectively equipped with card interface, two cards Interface arrangement symmetrical above and below, the card interface connect with the pipe insert port；The card interface is arc port, female connecting tube Front end face the left and right sides on be respectively symmetrically provided with guide rail, the guide rail lateral arrangement is simultaneously extend into the pipe insert port；

The snap lock fastener includes finger press, elasticity arm and latch part, and the finger press is arc and and clamping Mouthful match, the finger press is provided with two, is upper finger press and lower finger press respectively, the upper finger Press section and lower finger press arrangement symmetrical above and below；The elasticity arm is provided with four, respectively the first upper elasticity arm, second Upper elasticity arm, the first down spring arm and the second down spring arm；The first upper elasticity arm and the second upper elasticity arm or so pair Claim arrangement, the first upper elasticity arm and the first down spring arm arrangement symmetrical above and below, the first down spring arm with it is described Second down spring arm is symmetrically arranged, the second upper elasticity arm and the second down spring arm arrangement symmetrical above and below；It is described Latch part includes arc and arc block, before the inner concave of the arc block is arranged towards pin end and is located at the arc Side and on the inner concave of arc, the latch part has been located at two, is left latch part and right latch part respectively, described Left latch part is symmetrically arranged with the right latch part, and the top of the arcuate surface of the arc of the left latch part passes through described First upper elasticity arm is connected with the bottom surface left end of the upper finger press, under the arcuate surface of the arc of the left latch part Portion is connected by the first down spring arm with the top surface left end of the lower finger press, the arc of the right latch part The top of arcuate surface is connected by the second upper elasticity arm with the bottom surface right-hand member of the upper finger press, the right latch part The bottom of arcuate surface of arc be connected by the second down spring arm with the top surface right-hand member of the lower finger press, institute The lower end for stating the first upper elasticity arm is connected with the upper end of the first down spring arm, the lower end of the second upper elasticity arm with it is described The upper end connection of second down spring arm；

Guide groove is provided with the middle part of the rear side of the arc, the arc block of the left latch part is formed with the arc block of right lock and used In the pin end targeting port that pin end moves forward and backward；

Out of card interface insertion tube insert port, the finger press is located at the card interface snap lock fastener, described Elasticity arm and latch part are located in the pipe insert port, and the pin end sequentially passes through pipe insert port from front to back, pin end is led To mouth and female connecting tube, the inner concave of the rear side of the arc is bonded with the first annular raised trailing flank, and described The leading flank of one annular protrusion is bonded with the trailing flank of the arc block, and the inner concave of the arc block is outer with the Access Division Wall is bonded, and second annular protrusion is located at the front side of the hatch frame and is bonded with hatch frame, the guide groove and institute State guide rail clamping；The left and right width of the snap lock fastener is less than the left and right width of the pipe insert port.

A kind of 2. quick connector as claimed in claim 1, it is characterised in that：The elasticity arm is zigzag.

A kind of 3. quick connector as claimed in claim 1 or 2, it is characterised in that：The elasticity arm include the first swash plate and Second swash plate, first swash plate and the second swash plate are vertically arranged, one end and the finger press of first swash plate Connection, the other end of first swash plate are connected with one end of second swash plate, the other end and arc of second swash plate Plate connects, and the inclination angle of second swash plate is less than the inclination angle of first swash plate, and the length of first swash plate is less than the Two plagioclase degree.

A kind of 4. quick connector as claimed in claim 1 or 2, it is characterised in that：The cross section of the hatch frame is six Side shape, the pipe insert port are also hexagon.

A kind of 5. quick connector as claimed in claim 1 or 2, it is characterised in that：The vertical section of the snap lock fastener is Hexagon.