CN110425358B

CN110425358B - Quick connector

Info

Publication number: CN110425358B
Application number: CN201910641868.2A
Authority: CN
Inventors: 张月和
Original assignee: Wenzhou Nanxin Fluid Connector Co ltd
Current assignee: Wenzhou Nanxin Fluid Connector Co ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2021-06-25
Anticipated expiration: 2039-07-16
Also published as: CN110425358A

Abstract

The invention discloses a quick connector, which relates to the technical field of liquid connectors and adopts the technical scheme that the quick connector comprises a female connector and a male connector, wherein a sleeve is arranged on the female connector in a sliding manner, when the female connector and the male connector are connected and fixed, the sleeve moves to one end close to the male connector, a pressing piece is connected to the male connector in a rotating manner, a limiting block is fixedly arranged on the pressing piece, and after the female connector and the male connector are connected and fixed, the pressing piece is rotated, and the limiting block moves to one side of the sleeve far away from the ionic connector and contacts with the sleeve to limit the sleeve to move towards the direction far away from the male connector; the invention also comprises a positioning mechanism for limiting the detaining piece to be separated from the outer sleeve, and the invention has the effect of strengthening the stability after connection and fixation.

Description

Quick connector

Technical Field

The invention relates to the technical field of liquid connectors, in particular to a quick connector.

Background

The quick connector is a component widely applied to connection between pipe fittings, and is designed to provide a quick plug bush combining function of the connector and the pipe fittings, and the basic structure of the quick connector generally realizes fixation between the connector and the pipe fittings by using a steel ball clamping mode, and can be quickly implemented when the pipe fittings are separated, so that convenience and practicability of quick detachment and loosening between the connector and the pipe fittings are realized.

In the prior art, a chinese patent with an authorization publication number of CN205908925U discloses a quick coupling, wherein a circular hole is formed inside an inner handle, and two symmetrical waist-shaped holes are formed on the outer circumference of the inner handle, and the waist-shaped holes are communicated with the circular hole; the utility model discloses a spring, including the overcoat, the overcoat is arranged in the cavity of overcoat, the one end of spring is supported including the boss department on the handle, and the C card is connected to the other end of spring, and the afterbody of C card is equipped with the round steel ball, and the steel ball is arranged in the waist shape of interior handle downthehole and is hugged closely the inner wall of overcoat in, the upper and lower face opening width in waist shape hole is different, and wherein the opening width towards the round hole face is less than the diameter of steel ball, and the opening width towards that face of overcoat equals or is greater than the diameter of steel ball.

The quick coupling is the same as a common quick coupling, and utilizes a ball structure to limit the balls through the movement of the outer sleeve, so that the connection and the separation of the two couplings are realized. However, in practical use, factors such as external force and the like can cause the outer sleeve to move, so that the connection between the two joints is unstable, and the situation of liquid exposure is generated, and the improvement is still needed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a quick connector which has the effect of enhancing the stability after connection and fixation.

In order to achieve the purpose, the invention provides the following technical scheme: a quick connector comprises a female connector and a male connector, wherein a sleeve is arranged on the female connector in a sliding mode, when the female connector and the male connector are fixedly connected, the sleeve moves to one end close to the male connector, a pressing piece is connected to the male connector in a rotating mode, a limiting block is fixedly arranged on the pressing piece, after the female connector and the male connector are fixedly connected, the pressing piece is rotated, the limiting block moves to one side, far away from the ionic connector, of the sleeve and contacts with the sleeve to limit the sleeve to move towards the direction far away from the male connector; the device also comprises a positioning mechanism used for limiting the detaining piece to be separated from the outer sleeve.

Through adopting above-mentioned technical scheme, connect fixed back with son joint and female joint, detain through rotating and give security the piece, detain and give security and go up to the overcoat contact, the one end contact of ionic joint is kept away from to stopper and overcoat promptly, thereby restricted the overcoat and removed to the direction of keeping away from the son and connecting, the overcoat removal of avoiding leading to because external force, only after changeing the overcoat with the stopper, just can promote the overcoat, the realization is to the reinforcement of overcoat, thereby reach the purpose of strengthening the stability after connecting.

The invention is further configured to: the positioning mechanism comprises a groove arranged on the outer sleeve, a sliding groove arranged on the limiting block, an inserting block arranged in the sliding groove in a sliding manner, and a spring arranged in the sliding groove and used for driving the inserting block to eject out of the sliding groove; when the limiting block moves to one side of the outer sleeve far away from the ionic joint, one end of the inserting block is inserted into the groove and limits the movement of the buckling piece.

Through adopting above-mentioned technical scheme, when the son connects and the female joint is connected fixedly, rotate to detain and detain the piece until detaining to detain and to detain when a distance overcoat is nearest, detain at this moment and the lateral surface contact of overcoat, and stopper and the one side contact of overcoat far ion joint, insert the piece and move outside the sliding tray and insert to the recess under the effort of spring to realize detaining the spacing of piece.

The invention is further configured to: the cross-section of recess is the arc setting, the one end that inserts the piece and insert the recess is the arc end.

Through adopting above-mentioned technical scheme, at the in-process that the piece is close to the overcoat of withholding, insert the piece earlier with the overcoat butt, and the setting up of arc end makes to insert the piece and slides to the sliding tray, and spring deformation is until inserting the piece and remove to groove, inserts the piece and inserts to the recess in, has easy to assemble's effect.

The invention is further configured to: the limiting block is further provided with a square groove communicated with the sliding groove, and the inserting block is integrally formed with a square block inserted into the square groove.

By adopting the technical scheme, the square blocks slide in the square grooves, the maximum moving range of the inserting blocks is limited, and the inserting blocks are prevented from being completely separated from the limiting blocks.

The invention is further configured to: the detain and press the piece to be the arc setting, the thickness of the one end that the stopper was far away from the ionic joint diminishes along the direction of keeping away from the sub-joint gradually.

Through adopting above-mentioned technical scheme, reduce and lead to detaining the condition emergence of piece rotation because of external force.

The invention is further configured to: detain and press the piece to be provided with a plurality ofly, and it is a plurality of detain and press the piece to distribute along the axle center equidistance of sub-joint.

Through adopting above-mentioned technical scheme, have and strengthen the stable effect to the overcoat.

The invention is further configured to: the fixed two extension pieces that are provided with on the sub-joint, two all opened the rotation hole on the extension piece, be fixed with the axis of rotation on detaining the piece, the both ends of axis of rotation insert respectively to two rotation downthehole in order to realize detaining and detain the piece and rotate for the sub-joint.

Through adopting above-mentioned technical scheme, simple structure, and detain and give as security more stable when rotating.

The invention is further configured to: one end of the pressing piece close to the rotating shaft is provided with a right-angle end, and an elastic sheet is fixed on the sub-joint; when the detaining piece rotates to contact the overcoat, a straight face and the elastic sheet contact of right-angle end are in order to restrict detaining piece and rotate, and when detaining piece to keeping away from the overcoat direction and rotating 90 degrees after, another straight face and the elastic sheet contact of right-angle end are in order to restrict detaining piece and rotate.

Through adopting above-mentioned technical scheme, when the son connects and the separation of female joint, withhold a perpendicular to son and connect and place, a straight face and the flexure strip contact of right angle end this moment, and the flexure strip prevents to withhold a rotation, the operation that son connects and female joint is connected of being convenient for.

In summary, the retaining member is rotatably connected to the sub-joint, the retaining member is provided with a limiting block, the limiting block is in contact with one end of the outer sleeve far away from the sub-joint, the outer sleeve is limited to move in a direction far away from the sub-joint, the positioning mechanism has an effect of limiting the rotation of the retaining member, the outer sleeve is further limited, and therefore the stability of the connected sub-joint and the female joint is enhanced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is an enlarged view of a portion of the structure at B in FIG. 3;

fig. 5 is a schematic structural diagram of an insertion block in the present invention.

Reference numerals: 1. a female joint; 2. a sub-junction; 3. a jacket; 4. a detaining mechanism; 5. an extension block; 6. rotating the hole; 7. a retaining member; 8. a rotating shaft; 9. a limiting block; 10. a positioning mechanism; 11. a groove; 12. a sliding groove; 13. inserting a block; 14. a spring; 15. a square groove; 16. a square block; 17. a right-angle end; 18. an elastic sheet.

Detailed Description

The invention is further described with reference to the accompanying drawings.

The embodiment discloses a quick connector, as shown in fig. 1, including female joint 1 and sub-joint 2 fixed through steel ball structure joint, female joint 1 is slided and is equipped with overcoat 3, and when female joint 1 and sub-joint 2 are connected fixedly, overcoat 3 moves to the position that is closest to sub-joint 2, when needs separation sub-joint 2 and female joint 1, moves back overcoat 3 to the direction of keeping away from sub-joint 2, extracts sub-joint 2.

As shown in fig. 1, two groups of fastening mechanisms 4 for reinforcing the jacket 3 are disposed on the sub-joint 2, and the two fastening mechanisms 4 are symmetrically disposed at 180 degrees.

As shown in fig. 1 and 2, each group of pressing mechanisms 4 includes two extending blocks 5 integrally formed on the sub-connector 2, rotating holes 6 are formed on the two extending blocks 5, a pressing member 7 is rotatably connected between the two extending blocks 5, a rotating shaft 8 is fixed on the pressing member 7, and two ends of the rotating shaft 8 are respectively inserted into the two rotating holes 6 to rotate the pressing member 7 relative to the sub-connector 2. A limiting block 9 is fixedly arranged at one end of the pressing piece 7, which is far away from the rotating shaft 8, after the female joint 1 and the sub-joint 2 are fixedly connected, the pressing piece 7 is rotated, and the limiting block 9 moves to one side of the outer sleeve 3, which is far away from the sub-joint 2, and contacts with the outer sleeve 3 to limit the outer sleeve 3 to move towards the direction far away from the sub-joint 2; a positioning mechanism 10 (see fig. 4) is also included for limiting the disengagement of the detaining piece 7 from the casing 3.

As shown in fig. 3 and 4, the positioning mechanism 10 includes a groove 11 formed on the outer casing 3, a sliding groove 12 formed on the stopper 9, an insertion block 13 slidably disposed in the sliding groove 12, and a spring 14 disposed in the sliding groove 12 for urging the insertion block 13 to eject out of the sliding groove 12. When the sub-joint 2 is connected with the female joint 1 and fixed, the detaining piece 7 is rotated until the detaining piece 7 is nearest to the jacket 3, the detaining piece 7 at this moment contacts with the outer side surface of the jacket 3, and the limiting block 9 contacts with one side of the jacket 3 far away from the sub-joint 2, the inserting block 13 moves outwards the sliding groove 12 under the action force of the spring 14 and is inserted into the groove 11, so that the detaining piece 7 is limited. The cross section of the groove 11 is arc-shaped, and one end of the insertion block 13 inserted into the groove 11 is an arc-shaped end. In the process that detain piece 7 is close to overcoat 3, insert piece 13 earlier with overcoat 3 butt, and the setting of arc end makes to insert piece 13 and slides to sliding tray 12, and spring 14 deformation until inserting piece 13 and removing to recess 11 department, inserts piece 13 and inserts to recess 11 in, has easy to assemble's effect.

As shown in fig. 4 and 5, the stopper 9 is further provided with a square groove 15 communicating with the sliding groove 12, and the insert block 13 is integrally formed with a block 16 inserted into the square groove 15. The block 16 slides in the square groove 15, and the square groove 15 limits the maximum moving range of the inserting block 13 and prevents the inserting block 13 from completely separating from the limiting block 9.

As shown in fig. 1 and 2, the cross section of the locking member 7 is arc-shaped, and when the male connector 2 and the female connector 1 are connected and fixed, the locking member 7 is rotated, and one side of the locking member 7 facing the outer sleeve 3 is in contact with the outer side surface of the outer sleeve 3. And the thickness of one end of the limiting block 9 far away from the sub-joint 2 is gradually reduced along the direction far away from the sub-joint 2. Both arrangements reduce the chance of the detaining piece 7 rotating due to external forces.

As shown in fig. 2 and 3, a right-angled end 17 is integrally formed at one end of the pressing member 7 close to the rotating shaft 8, and an elastic piece 18 is fixed to the sub-connector 2. When the pressing piece 7 rotates to contact the outer side of the outer sleeve 3, one straight surface of the right-angle end 17 is contacted with the elastic sheet 18, and the elastic sheet 18 is not deformed; when the pressing member 7 is rotated 90 degrees in a direction away from the outer sleeve 3, the other straight surface of the right-angle end 17 contacts the elastic piece 18, and the elastic piece 18 is not deformed. When being close to the rotation with withholding piece 7 to overcoat 3, right angle end 17 and elastic sheet 18 butt and make elastic sheet 18 deformation, that is to say, elastic sheet 18 has and orders about withholding piece 7 and move to perpendicular to sub-joint 2 or laminate overcoat 3 these two kinds of states, when withholding piece 7 perpendicular sub-joint 2, elastic sheet 18 has the effect of restriction withholding piece 7 pivoted, is convenient for the connection of sub-joint 2 and female joint 1.

The concrete working condition effects are as follows:

after the sub-joint 2 and the female joint 1 are connected and fixed, the outer sleeve 3 is located at a position close to the sub-joint 2, then the piece 7 is withheld through rotating, one side of the piece 7 is withheld and the outer side of the outer sleeve 3 is attached, meanwhile, the limiting block 9 on the piece 7 is withheld and the one side of the piece 2 is away from the outer sleeve 3 is attached, in the process, the inserting block 13 is firstly abutted to the outer sleeve 3 and moves towards the sliding groove 12, one side of the piece 7 is withheld and the outer side of the outer sleeve 3 are attached, the inserting block 13 at the moment just moves to the groove 11, the inserting block 13 is inserted into the groove 11 under the action force of the spring 14, and the effect of limiting the rotation of the piece 7 is withheld. This application is restricted to overcoat 3 after fixed is connected to sub-joint 2 and female joint 1, prevents that overcoat 3 from removing to the direction of keeping away from sub-joint 2, has avoided the liquid that overcoat 3 accident was opened and lead to leak.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a quick-operation joint, including female joint (1) and sub-joint (2), female joint (1) is gone up to slide and is equipped with overcoat (3), works as when female joint (1) and sub-joint (2) are connected fixedly, overcoat (3) are removed to the one end that is close to sub-joint (2), characterized by: the sub-joint (2) is rotatably connected with a pressing piece (7), the pressing piece (7) is fixedly provided with a limiting block (9), after the female joint (1) and the sub-joint (2) are fixedly connected, the pressing piece (7) is rotated, the limiting block (9) moves to one side of the outer sleeve (3) far away from the sub-joint (2) and contacts with the outer sleeve (3) to limit the outer sleeve (3) to move towards the direction far away from the sub-joint (2); the device also comprises a positioning mechanism (10) for limiting the detaining piece (7) to be separated from the outer sleeve (3); the sub-joint (2) is fixedly provided with two extending blocks (5), the two extending blocks (5) are respectively provided with a rotating hole (6), the pressing piece (7) is fixedly provided with a rotating shaft (8), and two ends of the rotating shaft (8) are respectively inserted into the two rotating holes (6) to realize that the pressing piece (7) rotates relative to the sub-joint (2); a right-angle end (17) is arranged at one end of the pressing piece (7) close to the rotating shaft (8), and an elastic sheet (18) is fixed on the sub-joint (2); when the pressing piece (7) rotates to contact the outer sleeve (3), one straight surface of the right-angle end (17) is in contact with the elastic sheet (18) to limit the rotation of the pressing piece (7), and when the pressing piece (7) rotates 90 degrees in the direction away from the outer sleeve (3), the other straight surface of the right-angle end (17) is in contact with the elastic sheet (18) to limit the rotation of the pressing piece (7); the female joint (1) sequentially comprises an annular outer wall and a hexagonal bolt-shaped outer wall along the direction far away from the male joint (2), and the minimum diameter of the hexagonal bolt-shaped outer wall is larger than that of the annular outer wall; when the limiting block (9) moves to one side of the outer sleeve (3) far away from the sub-joint (2) and contacts with the outer sleeve (3) to limit the outer sleeve (3) to move towards the direction far away from the sub-joint (2), one end of the limiting block (9) far away from the sub-joint (2) gradually approaches to the axial lead of the female joint (1) along with the distance from the sub-joint (2), and the limiting block (9) is located on the annular outer wall.

2. A quick coupling as claimed in claim 1, wherein: the positioning mechanism (10) comprises a groove (11) formed in the outer sleeve (3), a sliding groove (12) formed in the limiting block (9), an inserting block (13) arranged in the sliding groove (12) in a sliding mode, and a spring (14) arranged in the sliding groove (12) and used for driving the inserting block (13) to eject out of the sliding groove (12); when the limiting block (9) moves to one side of the outer sleeve (3) far away from the sub-joint (2), one end of the inserting block (13) is inserted into the groove (11) and limits the movement of the buckling piece (7).

3. A quick coupling as claimed in claim 2, wherein: the cross section of the groove (11) is arc-shaped, and one end of the inserting block (13) inserted into the groove (11) is an arc-shaped end.

4. A quick coupling as claimed in claim 2, wherein: the limiting block (9) is also provided with a square groove (15) communicated with the sliding groove (12), and the inserting block (13) is integrally formed with a square block (16) inserted into the square groove (15).

5. A quick coupling as claimed in claim 1, wherein: the detaining piece (7) is arranged in an arc shape.

6. A quick coupling as claimed in claim 1, wherein: detain and press piece (7) to be provided with a plurality ofly, and a plurality of detain piece (7) along the circumference equidistance distribution of sub-joint (2).