CN216643440U

CN216643440U - Quick joint

Info

Publication number: CN216643440U
Application number: CN202123263192.XU
Authority: CN
Inventors: 王自文
Original assignee: KUNSHAN ESON PRECISION ENGINEERING CO LTD
Current assignee: KUNSHAN ESON PRECISION ENGINEERING CO LTD
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-31
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a quick connector in the technical field of pipeline connecting devices, and aims to solve the problems of complex structure and poor air tightness of a stop mechanism in the quick connector in the prior art. The air inlet pipeline comprises a male connector and a female connector, a locking mechanism is arranged in an inserting channel, a stopping mechanism is arranged in a transfer channel, the stopping mechanism comprises a pressing component and a movable sleeve, the movable sleeve is arranged on one side, away from an air inlet channel, of the pressing component, and a vent hole is formed in the movable sleeve; in the detached state: the movable sleeve can be inserted into the air outlet channel, and the vent hole is tightly attached to the inner wall of the air outlet channel; in the plug-in state: the male connector can push the movable sleeve to retreat from the air outlet channel into the transit channel and enable the vent hole to be communicated with the transit channel; the utility model is suitable for pipeline connection of air guns, and has the advantages of simple structure, good air tightness, low production cost, convenient assembly, improved assembly efficiency, reduced production cost and high cost performance.

Description

Quick joint

Technical Field

The utility model relates to the technical field of pipeline connecting devices, in particular to a quick connector.

Background

With the continuous development and continuous promotion of the machining industry, the air gun used as common equipment in the machining industry also keeps stable development and progress. When the air gun is used, a quick connector is required to be connected with an air source through a pipeline and used for conveying high-pressure air; quick-operation joint has quick lock joint and quick function of dismantling, can improve the installation effectiveness by a wide margin, and the operating personnel of being convenient for uses.

Be equipped with in the quick-operation joint and end the mechanism for block the intercommunication of gas circuit under the unconnected state, however, the mechanism ends of quick-operation joint at present, its structure is complicated and the gas tightness is relatively poor, causes the packaging efficiency low, and manufacturing cost is higher, and is not convenient for use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a quick connector, which solves the problems of complex structure and poor air tightness of a stop mechanism of the conventional quick connector.

In order to solve the technical problems, the utility model is realized by adopting the following technical scheme:

the utility model provides a quick connector which comprises a male connector and a female connector, wherein the female connector is provided with an air inlet channel, a transfer channel, an air outlet channel and an inserting channel which are sequentially communicated, a locking mechanism is arranged in the inserting channel and can lock one end of the male connector after being inserted into the inserting channel, a stopping mechanism is arranged in the transfer channel and comprises a pressing component and a movable sleeve, the movable sleeve is arranged on one side of the pressing component, which is far away from the air inlet channel, and a vent hole is formed in the movable sleeve;

in the detached state: the movable sleeve can be inserted into the air outlet channel, and the vent hole is tightly attached to the inner wall of the air outlet channel;

in the plug-in state: the male connector can push the movable sleeve to retreat into the transit channel from the air outlet channel, and the vent hole is communicated with the transit channel.

Furthermore, the pressing assembly comprises a pressing spring and a sealing block, the pressing spring is arranged on one side, close to the air inlet channel, of the sealing block, and the movable sleeve is arranged on one side, far away from the air inlet channel, of the sealing block.

Furthermore, a positioning ring groove is formed in the sealing block and used for accommodating the compression spring.

Furthermore, the locking mechanism comprises an extrusion assembly and a limiting ball, the inserting channel is provided with a plurality of arc-shaped mounting holes matched with the limiting ball along the circumferential direction, and the limiting ball is movably mounted in the arc-shaped mounting holes; the outer wall of the male connector is provided with a limiting ring groove; the extrusion assembly is sleeved outside the female connector and at least can cover the arc-shaped mounting hole so as to push the limiting ball to be clamped with the limiting ring groove after the male connector is inserted into the female connector.

Further, the extrusion assembly comprises an outer sleeve part, a return spring and a stop ring, and the outer sleeve part is sleeved on the outer wall of the female joint and can slide relative to the female joint; the inner wall of the outer sleeve piece is provided with an arc-shaped groove, the stop ring and the arc-shaped groove form an accommodating groove, and when the male joint is inserted into the female joint, the limiting ball can push the outer sleeve piece to move towards the direction close to the female joint until the limiting ball falls into the accommodating groove; the return spring is supported between the outer sleeve piece and the female joint, and when the male joint is withdrawn from the female joint, the return spring can push the outer sleeve piece to reset.

Further, the outer wall cover that the movable sleeve is close to the pressure components is equipped with the sealing washer, the inner wall of transfer passageway is equipped with the ladder groove corresponding with the sealing washer.

Furthermore, a sealing ring is arranged in the air outlet channel and used for sealing a contact surface between the male connector and the movable sleeve during plugging.

Further, the female joint comprises a body and a sleeve which is connected to one end of the body in a threaded mode.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the quick connector, the movable sleeve can be inserted into the air outlet channel, the vent hole is tightly attached to the inner wall of the air outlet channel, the quick connector can return to the transit channel during insertion, and the vent hole is communicated with the transit channel, so that the quick connector is simple in structure, good in air tightness, low in production cost, convenient to assemble and assemble, high in assembly efficiency, low in production cost and high in cost performance;

2. according to the quick connector, the sealing block is attached to the inner wall of one side of the transfer channel under the tension of the compression spring, and the compression spring can retract into the positioning ring groove when being compressed, so that the air tightness is improved, the structural compactness of the device is improved, and the quick connector is convenient to use;

3. this quick-operation joint, sealing washer and ladder groove closely laminate under the effect that compresses tightly the subassembly, during the intercommunication, the butt joint of male joint and movable sleeve and closely laminate with the sealing ring, promoted the gas tightness of device when the intercommunication with when not communicating by a wide margin, improved the connection stability of device.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a quick connector provided in an embodiment of the present invention in a plugging state;

FIG. 2 is a schematic view of the quick coupling of FIG. 1 in a disengaged state;

FIG. 3 is a schematic perspective view of the quick connector of FIG. 1 in a disengaged state;

FIG. 4 is an exploded view of the quick connector structure of FIG. 1;

in the figure: 1. a male connector; 2. a female joint; 21. a body; 22. a sleeve; 3. an air intake passage; 4. a transit passage; 5. an air outlet channel; 6. a plug channel; 7. a compression assembly; 71. a compression spring; 72. a sealing block; 73. a positioning ring groove; 8. a movable sleeve; 9. a vent hole; 10. an extrusion assembly; 101. an outer sleeve member; 102. a return spring; 103. a blocking ring; 11. a limiting ball; 12. an arc-shaped mounting hole; 13. a limiting ring groove; 14. a seal ring; 15. a stepped groove; 16. and (4) a sealing ring.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1-2, the present invention provides a quick connector, which includes a male connector 1 and a female connector 2, wherein the female connector 2 has an air inlet channel 3, a transit channel 4, an air outlet channel 5 and an insertion channel 6 which are sequentially communicated, a locking mechanism is arranged in the insertion channel 6, the locking mechanism can lock one end of the male connector 1 after being inserted into the insertion channel 6, a stopping mechanism is arranged in the transit channel 4, the stopping mechanism includes a pressing component 7 and a movable sleeve 8, the movable sleeve 8 is arranged on one side of the pressing component 7 far away from the air inlet channel 3, and a vent hole 9 is arranged on the movable sleeve 8; in the detached state: the movable sleeve 8 can be inserted into the air outlet channel 5, and the vent hole 9 is tightly attached to the inner wall of the air outlet channel 5; in the plug-in state: the male connector 1 can push the movable sleeve 8 to retreat from the air outlet channel 5 to the transit channel 4, and the vent hole 9 is communicated with the transit channel 4.

Specifically, when in use, an operator inserts the male connector 1 into the inserting channel 6 of the female connector 2, then the front end of the male connector 1 extends into the air outlet channel 5 to push the movable sleeve 8 to move, the movable sleeve 8 overcomes the thrust of the pressing component 7 and returns to the transit channel 4, then the vent hole 9 arranged on the movable sleeve 8 is communicated with the transit channel 4, when the male connector 1 is inserted in place, the locking mechanism in the inserting channel 6 locks and fixes the male connector 1, at the moment, the male connector 1 and the movable sleeve 8 are butted in the air outlet channel 5, then gas passes through the air inlet channel 3 and the transit channel 4 and then enters the movable sleeve 8 through the vent hole 9, and finally is conveyed into the male connector 1 from the movable sleeve 8, so that the conveying of the gas is completed, the internal structure of the device can be simplified by arranging the structure, the design is ingenious, the air tightness is high, and the assembly efficiency is effectively improved, reduces the production cost and has wide market prospect.

One embodiment is as follows: as shown in fig. 1-2 and 4, the pressing assembly 7 includes a pressing spring 71 and a sealing block 72, the pressing spring 71 is disposed on a side of the sealing block 72 close to the air inlet passage 3, the movable sleeve 8 is disposed on a side of the sealing block 72 away from the air inlet passage 3, and the sealing block 72 is provided with a positioning ring groove 73 for accommodating the pressing spring 71.

In this embodiment, in order to further facilitate the production and manufacturing of the product, the movable sleeve 8 and the sealing block 72 are integrally cast, and when the movable sleeve 8 and the sealing block 72 are not communicated, the sealing block 72 and the inner wall of the transfer channel 4 near the air outlet channel 5 are attached under the tension of the compression spring 71, which not only drives the movable sleeve 8 to be inserted into the air outlet channel 5, but also can block the communication between the transfer channel 4 and the air outlet channel 5, thereby improving the air tightness. In order to improve the compactness of the device, the pressing spring 71 is disposed in the positioning ring groove 73, so that the pressing spring 71 is retracted into the positioning ring groove 73 when being pressed, thereby shortening the size of the product.

One embodiment is as follows: as shown in fig. 1-4, the locking mechanism comprises an extrusion assembly 10 and a limiting ball 11, the insertion channel 6 is provided with a plurality of arc-shaped mounting holes 12 matched with the limiting ball 11 along the circumferential direction, and the limiting ball 11 is movably mounted in the arc-shaped mounting holes 12; the outer wall of the male connector 1 is provided with a limit ring groove 13; the extrusion assembly 10 is sleeved outside the female connector 2 and can at least cover the arc-shaped mounting hole 12 so as to push the limiting ball 11 to be clamped with the limiting ring groove 13 after the male connector 1 is inserted into the female connector 2. The extrusion assembly 10 comprises an outer sleeve part 101, a return spring 102 and a stop ring 103, wherein the outer sleeve part 101 is sleeved on the outer wall of the female joint 2 and can slide relative to the female joint 2; an arc-shaped groove 104 is formed in the inner wall of the outer sleeve part 101, an accommodating groove is formed by the blocking ring 103 and the arc-shaped groove 104, when the male connector 1 is inserted into the female connector 2, the limiting ball 11 can push the outer sleeve part 101 to move towards the direction close to the female connector 2 until the limiting ball 11 falls into the accommodating groove; a return spring 102 is supported between the outer sleeve 101 and the female connector 2, and when the male connector 1 is withdrawn from the female connector 2, the return spring 102 can push the outer sleeve 101 to return.

Specifically, when the locking mechanism is locked, the outer sleeve 101 of the extrusion assembly 10 extrudes the limiting ball 11 under the pushing or pulling force of the return spring 102, one end of the limiting ball 11 extends into the inserting channel 6 through the arc-shaped mounting hole 12 under the pressure, at this time, the male connector 1 is inserted into the inserting channel 6, so that the limiting ring groove 13 is aligned with the arc-shaped mounting hole 12, then the limiting ball 11 falls into the limiting ring groove 13 and is kept clamped with the same, under the mutual matching of the plurality of limiting balls 11, the male connector 1 is locked in the inserting channel 6, when needing to be separated, the outer sleeve 101 is moved, the outer sleeve 101 slides along the female connector 2, when the arc-shaped groove 104 is aligned with the arc-shaped mounting hole 12, the limiting ball 11 is not extruded, at this time, the arc-shaped groove 104 and the blocking ring 103 form a receiving groove, then the male connector 1 is pulled out, under the pushing force of the male connector 1, spacing ball 11 falls into the accepting groove in, and then withdraws from in the grafting passageway 6, so male joint 1 no longer receives spacingly, can separate with female joint 2, can accomplish quick lock joint and quick dismantlement's function through setting up above-mentioned structure convenient and fast ground, has improved the installation effectiveness by a wide margin, and the operating personnel of being convenient for uses.

One embodiment is as follows: as shown in fig. 1-2 and 4, a sealing ring 14 is sleeved on the outer wall of the movable sleeve 8 close to the pressing component 7, a stepped groove 15 corresponding to the sealing ring 14 is formed in the inner wall of the transit passage 4, and a sealing ring 16 is arranged in the air outlet passage 5 and used for sealing the contact surface between the male connector 1 and the movable sleeve 8 during plugging.

In the embodiment, in order to further improve the air tightness of the device, the movable sleeve 8 is sleeved with the sealing ring 14, when the movable sleeve is not communicated with the movable sleeve, the sealing ring 14 is tightly attached to the stepped groove 15 under the action of the pressing assembly 7, so that the gas in the transit passage 4 cannot leak through a gap between the movable sleeve 8 and the gas outlet passage 5; be equipped with sealing ring 16 in outlet channel 5, when the intercommunication, male joint 1 and activity cover 8 butt joint and closely laminate with sealing ring 16, so gaseous the back of oozing from male joint 1 and activity cover 8's contact surface, receive sealing ring 16's closure, can't further ooze to outlet channel 5 in, set up above-mentioned structure and promoted the device by a wide margin when the intercommunication with the gas tightness when not communicateing, improved the connection stability of device.

The box 2 includes a body 21 and a sleeve 22 threadedly coupled to one end of the body 21. The installation of the internal parts of the female joint 2 can be facilitated, the assembly efficiency is improved, and the production yield is improved.

Compared with the prior art, the quick connector provided by the utility model has the advantages of simple structure, good air tightness, low production cost, convenience for assembly and assembly, effective improvement on assembly efficiency, reduction in production cost, high cost performance and wide market and corresponding requirements. Meanwhile, the device also has the functions of quick fastening and quick dismounting, and is convenient to operate and good in using effect.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a quick-operation joint, includes male joint (1) and female joint (2), female joint (2) have inlet channel (3), transfer passageway (4), air outlet channel (5) and grafting passageway (6) that communicate in proper order, be equipped with locking mechanism in grafting passageway (6), locking mechanism can insert its locking, its characterized in that after grafting passageway (6) in male joint (1) one end: a stop mechanism is arranged in the transfer passage (4), the stop mechanism comprises a pressing component (7) and a movable sleeve (8), the movable sleeve (8) is arranged on one side, far away from the air inlet passage (3), of the pressing component (7), and a vent hole (9) is formed in the movable sleeve (8);

in the detached state: the movable sleeve (8) can be inserted into the air outlet channel (5) and enables the vent hole (9) to be tightly attached to the inner wall of the air outlet channel (5);

in the plug-in state: the male connector (1) can push the movable sleeve (8) to retreat into the transfer channel (4) from the air outlet channel (5), and the vent hole (9) is communicated with the transfer channel (4).

2. A quick coupling according to claim 1, wherein: the pressing assembly (7) comprises a pressing spring (71) and a sealing block (72), the pressing spring (71) is arranged on one side, close to the air inlet channel (3), of the sealing block (72), and the movable sleeve (8) is arranged on one side, far away from the air inlet channel (3), of the sealing block (72).

3. A quick coupling according to claim 2, wherein: and a positioning ring groove (73) is arranged on the closing block (72) and used for accommodating the compression spring (71).

4. A quick coupling according to claim 1, wherein: the locking mechanism comprises an extrusion assembly (10) and a limiting ball (11), the inserting channel (6) is provided with a plurality of arc-shaped mounting holes (12) matched with the limiting ball (11) along the circumferential direction, and the limiting ball (11) is movably mounted in the arc-shaped mounting holes (12); the outer wall of the male connector (1) is provided with a limiting ring groove (13); female joint (2) outside is located in extrusion subassembly (10) cover, can cover at least arc mounting hole (12) to promote spacing ball (11) and spacing annular (13) and keep the block after male joint (1) inserts female joint (2).

5. A quick coupling according to claim 4, wherein: the extrusion assembly (10) comprises an outer sleeve part (101), a return spring (102) and a blocking ring (103), wherein the outer sleeve part (101) is sleeved on the outer wall of the female joint (2) and can slide relative to the female joint (2); an arc-shaped groove (104) is formed in the inner wall of the outer sleeve piece (101), an accommodating groove is formed by the stop ring (103) and the arc-shaped groove (104), and when the male connector (1) is inserted into the female connector (2), the limiting ball (11) can push the outer sleeve piece (101) to move towards the direction close to the female connector (2) until the limiting ball (11) falls into the accommodating groove; the return spring (102) is supported between the outer sleeve piece (101) and the female joint (2), and when the male joint (1) is withdrawn from the female joint (2), the return spring (102) can push the outer sleeve piece (101) to return.

6. A quick coupling according to claim 1, wherein: the outer wall cover that activity cover (8) are close to compressing tightly subassembly (7) is equipped with sealing washer (14), the inner wall of transfer passageway (4) is equipped with ladder groove (15) corresponding with sealing washer (14).

7. A quick coupling according to claim 1, wherein: and a sealing ring (16) is arranged in the air outlet channel (5) and is used for sealing a contact surface between the male connector (1) and the movable sleeve (8) during plugging.

8. A quick coupling according to any one of claims 1 to 7, wherein: the female joint (2) comprises a body (21) and a sleeve (22) which is connected to one end of the body (21) in a threaded mode.