CN217328953U

CN217328953U - Quick adapter

Info

Publication number: CN217328953U
Application number: CN202220056204.7U
Authority: CN
Inventors: 胡建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-08-30
Anticipated expiration: 2032-01-06

Abstract

The utility model relates to a quick adapter, include: the main body seat is of a hollow structure with two open ends; the locking device is characterized by also comprising a locking sleeve which can be arranged at the front part of the main body seat in a sliding manner; at least three clamping jaws are arranged at the front part of the main body seat and positioned in the locking sleeve; the first elastic piece enables the locking sleeve to always have the tendency of sliding forwards; the clamping jaws are circumferentially spaced on the main body seat, and the front end of each clamping jaw is provided with a clamping part exposed at the front end of the locking sleeve, so that an annular clamping head is formed, and the quick adapter can adapt to pipe fittings with different pipe diameters.

Description

Quick adapter

Technical Field

The utility model relates to a fluid line connects accessory field, concretely relates to is a quick adapter.

Background

In fluid pipeline connection, the quick connector is widely applied, and is a connector which can realize pipeline connection or disconnection without tools, so that great convenience is brought to connection and disconnection of fluid pipelines.

The existing quick connector for the fluid pipeline, such as an angle valve for an air conditioner disclosed in the chinese patent with the application number CN201020687769.2 (with the publication number CN201902577U), sequentially comprises an angle valve male head, an angle valve main body, a loose head connecting block, a sealing ring seat, a sealing ring and a loose nut for connecting a stop valve of the air conditioner from top to bottom; a sleeve extends out of the upper end of the sealing ring seat, and the sleeve passes through the loose head connecting block to be connected with the angle valve main body; the sealing ring and the sealing ring seat are arranged at the inner side of the loose nut in a vertical sliding manner, and the outer side of the angle valve is provided with a rocker arm for controlling the sealing ring seat to move up and down; if the bayonet type quick stop valve joint disclosed in chinese patent application No. CN201210187586.8 (publication No. CN102691841A) of the present applicant includes a cylindrical sleeve and a loose head disposed at the front end of the sleeve, the front end of the loose head is provided with a nut portion having an internal thread, and the quick stop valve joint is characterized by further including a seal ring seat, two ends of which are respectively located in the sleeve and the loose head and can move axially, the front end of the seal ring seat is provided with a seal ring, the inner side wall of the loose head is provided with a stop ring, the stop ring is located between the nut portion and the seal ring and has an inner diameter smaller than that of the nut portion, and when the stop ring abuts against the external thread at the end of the stop valve, the seal ring can move to abut against the conical surface of the head of the stop valve.

In the joints, the loose head is connected with the external pipe joint through threads, so that the corresponding loose head is required to be used for pipes with different pipe diameters, fittings are added, and the connection operation is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a quick adapter that can adapt to the pipe fitting of different pipe diameters is provided to foretell technical current situation.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a quick adaptor, comprising:

the main body seat is of a hollow structure with two open ends;

it is characterized by also comprising

The locking sleeve can be arranged at the front part of the main body seat in a front-and-back sliding manner;

the at least three clamping jaws are arranged at the front part of the main body seat and are positioned in the locking sleeve;

the first elastic piece enables the locking sleeve to always have the tendency of sliding forwards;

the clamping jaws are spaced along the circumferential direction of the main body seat, and the front end of each clamping jaw is provided with a clamping part exposed out of the front end of the locking sleeve, so that an annular chuck is formed.

In order to facilitate the quick adapter to adapt to external pipe fittings with different lengths, the quick adapter further comprises a sealing sleeve and a second elastic part, the sealing sleeve can be inserted into the front end of the main body seat in a front-back sliding mode and is located in the clamping jaws, a third step protruding towards the inner center is arranged on the inner wall of the sealing sleeve, and the second elastic part enables the sealing sleeve to always have a forward moving trend. The sealing sleeve can slide forwards and backwards, so that the distance between the sealing sleeve and the annular chuck can be adjusted according to the length of the external pipe fitting, the adapter is suitable for the external pipe fittings with different lengths, and the universality of the quick adapter is further improved.

In order to facilitate the radial limitation of the sealing sleeve, the front part of the sealing sleeve is prevented from radially shaking, the sealing sleeve further comprises a mounting sleeve and a third elastic part, the mounting sleeve can be sleeved outside the sealing sleeve in a front-back sliding mode, the mounting sleeve is located between the main body seat and the at least three clamping jaws, and the third elastic part enables the mounting sleeve to always have the trend of moving forwards.

In order to make the structures of the second elastic part and the third elastic part simpler, a first step is arranged on the inner peripheral wall of the main body seat, and the second elastic part is a spring arranged between the first step and the rear end face of the sealing sleeve; the outer peripheral wall of the main body seat is provided with a second step, the outer peripheral wall of the installation sleeve is provided with an outer shoulder, and the third elastic piece is a spring arranged between the second step and the shoulder surface of the outer shoulder.

In order to enable the external pipe fitting to be connected with the sealing sleeve in a sealing manner and simultaneously isolate the inside and the outside of the sealing sleeve, a first annular groove is formed in the inner peripheral wall of the front part of the sealing sleeve, the third step forms the rear wall of the first annular groove, and a first sealing ring is accommodated in the first annular groove; two second annular grooves are formed in the inner peripheral wall of the front portion of the main body seat at intervals along the length direction of the main body seat, second sealing rings are contained in the second annular grooves, and the second sealing rings are abutted to the outer peripheral wall of the sealing sleeve in a sealing mode.

In order to facilitate the installation of the clamping jaws, a mounting groove extending in the circumferential direction is formed in the circumferential wall of the main body seat, and a mounting part embedded in the mounting groove is arranged at the rear end of each clamping jaw.

Make the structure of first elastic component simpler in the time of in order to facilitate the installation lock sleeve, simultaneously, be convenient for carry on spacingly to the retrodisplacement degree of lock sleeve, the annular pad has been cup jointed to the outside of main part seat, the lock sleeve with annular pad sliding connection, just be equipped with bulge loop and interior shoulder on the internal perisporium of lock sleeve, first elastic component is for locating the annular pad with the bulge loop between the spring, interior shoulder be located the bulge loop with the annular pad between, and interior shoulder can with the preceding terminal surface of annular pad offsets.

In order to facilitate the limitation of the forward movement degree of the locking sleeve, a convex edge is arranged on the peripheral wall of the front end of at least one clamping jaw, and the rear end face of the convex edge can be abutted against the front end face of the locking sleeve.

In order to facilitate connection with an external female joint, the rear end of the main body seat is connected with a detachable connecting sleeve, a valve core capable of sliding back and forth is inserted into the rear end of the connecting sleeve so as to open or block the rear end opening of the connecting sleeve, a hexagonal seat close to the rear end of the main body seat is further accommodated in the connecting sleeve, and a fourth elastic piece enabling the valve core to always have a backward sliding trend is arranged between the hexagonal seat and the valve core.

In order to enable the annular clamping head to have a better axial positioning effect on the external pipe fitting, the inner peripheral wall of the clamping part is provided with threads extending in the circumferential direction.

Compared with the prior art, the utility model has the advantages of: set up the inside clamping jaw that is located the lock sleeve through the circumference interval along main part subassembly at least three, and set up the clamping part at the front end of each clamping jaw and form and carry out the annular chuck that the axial is spacing to outside pipe fitting, the internal diameter that makes annular chuck can be adjusted along with the pipe diameter of outside pipe fitting, so that this quick adapter can adapt to the outside pipe fitting of different pipe diameters, thereby improve quick adapter's commonality, still realize being connected auto-lock and the unblock of annular chuck and outside pipe fitting through the back-and-forth movement of lock sleeve and the cooperation of first elastic component, thereby it is more convenient to make adapter and outside pipe fitting connection operation.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is an exploded perspective view of an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in FIGS. 1 to 4, the preferred embodiment of the present invention is shown.

The quick adapter in this embodiment includes main parts such as lock sleeve 1, six clamping jaws 2, first elastic component 31, second elastic component 32, third elastic component 33, fourth elastic component 34, main body seat 4, second sealing washer 44, seal cover 5, first sealing washer 51, installation cover 6, adapter sleeve 7, case 8, hexagonal seat 9 and annular pad 10.

The main body seat 4 is a hollow structure with openings at two ends, and the locking sleeve 1 can be arranged at the front part of the main body seat 4 in a sliding manner. Specifically, the annular pad 10 is sleeved outside the main body seat 4, the locking sleeve 1 is slidably connected with the annular pad 10, and a clamp spring 101 (see fig. 3) for limiting the rearward movement of the annular pad 10 is further arranged on the outer peripheral wall of the main body seat 4. The outer wall of the front end of each clamping jaw 2 is provided with a convex edge 23 (see fig. 4), and the rear end surface of the convex edge 23 can be abutted against the front end surface of the locking sleeve 1 (see fig. 3), so that the forward movement degree of the locking sleeve 1 is convenient to limit. Six clamping jaws 2 are arranged at the front part of the main body seat 4 at intervals along the circumferential direction of the main body seat 4, specifically, a circumferential extending installation groove 42 (see fig. 4) is opened on the circumferential wall of the main body seat 4, and the rear end of each clamping jaw 2 is provided with an installation part 22 (see fig. 3) embedded in the installation groove 42, thereby facilitating the installation of each clamping jaw 2. The six clamping jaws 2 are located between the locking sleeve 1 and the main body seat 4, and the front end of each clamping jaw 2 is provided with a clamping portion 21 exposed at the front end of the locking sleeve 1, so that an annular chuck 20 (see fig. 1) for positioning an external pipe inserted in the front end of the main body seat 4 can be formed, the inner diameter of the annular chuck 20 can be adjusted along with the pipe diameter of the external pipe, the quick adapter can be adapted to external pipes with different pipe diameters, and the universality of the quick adapter is improved. The inner wall of the clamping portion 21 is provided with circumferentially extending threads 211 (see fig. 1), and the threads 211 are used for being matched and connected with an external pipe fitting, so that the annular chuck 20 has a better axial positioning effect on the external pipe fitting. The inner peripheral wall of the locking sleeve 1 is provided with a convex ring 11, the first elastic member 31 is a spring arranged between the annular pad 10 and the convex ring 11, and the first elastic member 31 makes the locking sleeve 1 always have a forward sliding tendency (see fig. 3). Still be equipped with the interior shoulder 12 that is located between bulge loop 11 and the ring gasket 10 on the internal perisporium of lock sleeve 1, this interior shoulder 12 can offset with the preceding terminal surface of ring gasket 10 to carry on spacingly to the retrusive degree of lock sleeve 1. The back and forth movement of the locking sleeve 1 and the cooperation of the first elastic element 31 can realize the self-locking and unlocking of the connection between the annular chuck 20 and the external pipe, so that the connection operation between the adapter and the external pipe is more convenient.

The sealing sleeve 5 can be inserted into the front end of the main body seat 4 in a front-back sliding manner and is positioned inside the six clamping jaws 2 (see fig. 3), so that the distance between the sealing sleeve 5 and the annular clamping head 20 can be adjusted according to the length of an external pipe fitting, the adapter is adaptive to the external pipe fittings with different lengths, and the universality of the quick adapter is further improved. The sealing sleeve 5 has a first annular groove 52 (see fig. 4) formed on an inner peripheral wall of a front portion thereof, the first sealing ring 51 is received in the first annular groove 52 (see fig. 3), and the first sealing ring 51 is adapted to abut against an outer peripheral wall of an external pipe inserted into a front end of the main body seat 4, so that the external pipe is connected to the sealing sleeve 5 in a sealing manner. The inner wall of the sealing sleeve 5 is also provided with a third step 53 projecting inwards towards the centre, the inner diameter of this third step 53 being smaller than the inner diameter of the annular collet 20, so that the projection of the outer tube is able to rest directly on the third step 53 of the sealing sleeve 5, this third step 53 constituting the rear wall of the first annular groove 52 (see figure 3). Two second ring grooves 43 are arranged on the inner peripheral wall of the front part of the main body seat 4 at intervals along the length direction of the main body seat, a second sealing ring 44 is accommodated in each second ring groove 43, and each second sealing ring 44 is in sealing contact with the outer peripheral wall of the sealing sleeve 5 so as to isolate the inside and the outside of the sealing sleeve 5 (see fig. 3). The inner peripheral wall of the main body seat 4 is provided with a first step 41, the second elastic member 32 is a spring (see fig. 3) arranged between the first step 41 and the rear end face of the sealing sleeve 5, and the second elastic member 32 makes the sealing sleeve 5 always have a tendency of moving forward.

The mounting sleeve 6 can be sleeved outside the sealing sleeve 5 in a front-back sliding manner, and the mounting sleeve 6 is positioned between the main body seat 4 and the six clamping jaws 2 (see fig. 3), so that the radial limiting of the sealing sleeve 5 is facilitated, and the front part of the sealing sleeve 5 is prevented from radially shaking. The outer peripheral wall of the main body seat 4 is provided with a second step 45 (see fig. 3), the outer peripheral wall of the mounting sleeve 6 is provided with an outer shoulder 61 (see fig. 4), the third elastic element 33 is a spring arranged between the second step 45 and the outer shoulder 61 (see fig. 3), and the third elastic element 33 enables the mounting sleeve 6 to always have a tendency of moving forward.

The rear end of the main body seat 4 is connected with a detachable connection sleeve 7 so as to be conveniently connected with an external female joint. Specifically, the main body seat 4 and the connection sleeve 7 are screwed (see fig. 3). The rear end of the connecting sleeve 7 is inserted with a valve core 8 capable of sliding back and forth so as to open or block the rear end opening of the connecting sleeve 7, the inside of the connecting sleeve 7 also contains a hexagonal seat 9 close to the rear end of the main body seat 4, and a fourth elastic element 34 is arranged between the hexagonal seat 9 and the valve core 8 and enables the valve core 8 to always have the tendency of sliding back (see fig. 3).

The working principle of the quick adapter in this embodiment is as follows:

when the quick coupling is not connected with an external pipe, the elastic action of the first spring 31 on the locking sleeve 1 and the combined action of the convex edges 23 on the clamping jaws 2 enable the locking sleeve 1 to be positioned in a state that the front end surface of the locking sleeve 1 is abutted against the rear end surfaces of the convex edges 23, and the clamping part 21 on each clamping jaw 2 moves inwards due to the restraining action of the locking sleeve 1, so that the annular chuck 20 is in a contracted state.

When the quick connector and an external pipe fitting need to be connected, the locking sleeve 1 is moved backwards until the inner shoulder 12 abuts against the front end face of the annular pad 10, so that the clamping parts 21 on the clamping jaws 2 are not restrained by the locking sleeve 1 any more, the clamping parts 21 on the clamping jaws 2 can move outwards due to self elastic recovery, and the annular chuck 20 is in an expanded state. The outer pipe is inserted into the front end of the sealing sleeve 5, so that the convex part on the outer peripheral wall of the outer pipe is abutted against the third step 53, and the backward movement of the outer pipe can drive the sealing sleeve 5 and the mounting sleeve 6 to synchronously move backward. When the outer tubular member is moved back until the threads on the outer peripheral wall of the outer tubular member engage the threads 211 on the gripping portion 21, the outer tubular member is no longer moved back and the locking sleeve 1 is released, allowing the locking sleeve 1 to move forward under the action of the first spring 31, causing the annular collet 20 to contract and lock the outer tubular member.

Terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like, are used in the specification and claims of the present invention to describe various example structural parts and elements of the present invention, but these terms are used herein only for convenience of description and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Claims

1. A quick adapter, comprising:

the main body seat (4) is of a hollow structure with two open ends;

it is characterized by also comprising

The locking sleeve (1) is arranged at the front part of the main body seat (4) in a sliding manner;

at least three clamping jaws (2) arranged at the front part of the main body seat (4) and positioned in the locking sleeve (1);

the first elastic piece (31) enables the locking sleeve (1) to always have a forward sliding trend;

the clamping jaws (2) are spaced along the circumferential direction of the main body seat (4), and the front end of each clamping jaw (2) is provided with a clamping part (21) exposed out of the front end of the locking sleeve (1), so that an annular chuck (20) is formed.

2. The quick adapter as claimed in claim 1, wherein: the clamping device is characterized by further comprising a sealing sleeve (5) and a second elastic piece (32), wherein the sealing sleeve (5) can be inserted into the front end of the main body seat (4) in a front-back sliding mode and is located in the clamping jaws (2), a third step (53) protruding towards the inner center is arranged on the inner wall of the sealing sleeve (5), and the second elastic piece (32) enables the sealing sleeve (5) to always have the tendency of moving forwards.

3. The quick adapter as claimed in claim 2, wherein: the clamping device is characterized by further comprising a mounting sleeve (6) and a third elastic piece (33), wherein the mounting sleeve (6) is sleeved outside the sealing sleeve (5) in a forward and backward sliding mode, the mounting sleeve (6) is located between the main body seat (4) and the at least three clamping jaws (2), and the third elastic piece (33) enables the mounting sleeve (6) to always have a forward moving trend.

4. The quick adapter as claimed in claim 3, wherein: a first step (41) is arranged on the inner peripheral wall of the main body seat (4), and the second elastic piece (32) is a spring arranged between the first step (41) and the rear end face of the sealing sleeve (5); be equipped with second step (45) on the periphery wall of main part seat (4), be equipped with outer shoulder (61) on the periphery wall of installation cover (6), third elastic component (33) be for locating second step (45) with spring between outer shoulder (61).

5. The quick adapter as claimed in claim 2, wherein: a first annular groove (52) is formed in the inner peripheral wall of the front part of the sealing sleeve (5), the third step (53) forms the rear wall of the first annular groove (52), and a first sealing ring (51) is accommodated in the first annular groove (52); two second annular grooves (43) are arranged on the inner peripheral wall of the front portion of the main body seat (4) at intervals along the length direction of the main body seat, second sealing rings (44) are contained in the second annular grooves (43), and the second sealing rings (44) are in sealing and abutting contact with the outer peripheral wall of the sealing sleeve (5).

6. The quick adapter as claimed in any one of claims 1-5, wherein: the outer peripheral wall of the main body seat (4) is provided with a mounting groove (42) extending in the circumferential direction, and the rear end of each clamping jaw (2) is provided with a mounting part (22) embedded in the mounting groove (42).

7. A quick adaptor according to any one of claims 1 to 5, wherein: annular gasket (10) has been cup jointed to the outside of main part seat (4), lock sleeve (1) with annular gasket (10) sliding connection, just be equipped with bulge loop (11) and interior shoulder (12) on the internal perisporium of lock sleeve (1), first elastic component (31) are for locating annular gasket (10) with bulge loop (11) between the spring, interior shoulder (12) be located the bulge loop with the annular gasket between, and can with the preceding terminal surface of annular gasket (10) offsets.

8. A quick adaptor according to any one of claims 1 to 5, wherein: a convex edge (23) is arranged on the peripheral wall of the front end of at least one clamping jaw (2), and the rear end face of the convex edge (23) can be abutted against the front end face of the locking sleeve (1).

9. The quick adapter as claimed in any one of claims 1-5, wherein: the rear end of the main body seat (4) is connected with a detachable connecting sleeve (7), a valve core (8) capable of sliding back and forth is inserted into the rear end of the connecting sleeve (7) and can be opened or blocked from a rear end opening of the connecting sleeve (7), a hexagonal seat (9) close to the rear end of the main body seat (4) is further accommodated in the connecting sleeve (7), and a fourth elastic part (34) enabling the valve core (8) to always have a backward sliding trend is arranged between the hexagonal seat (9) and the valve core (8).

10. A quick adaptor according to any one of claims 1 to 5, wherein: the inner peripheral wall of the clamping part (21) is provided with threads (211) extending in the circumferential direction.