CN208687198U - A kind of quick coupling of anti-leak - Google Patents

Abstract

The utility model discloses a kind of quick couplings of anti-leak, including quick coupling main body, the outside top of quick coupling main body is symmetrically fixed with fixed ear, the side of fixed ear is provided with pull rod, the bottom end of quick coupling main body is welded with connecting tube, the outer surface of connecting tube is provided with anti-skid chequer, auxiliary stopper pipe is fixed on the outside of connecting tube, the internal activity of quick coupling main body is provided with sealing bar, the outer sheath of sealing bar is equipped with the second adjustable spring, the top of sealing bar is welded with sealing plate, the bottom of the quick coupling main body offers, limiting component is fixedly installed by being slidably fastened on auxiliary stopper pipe；By pulling pull rod, depressing the core shift block of tie rod end or far from sealing plate, while depressing sealing plate, realizing the end of sealing bar and gasket and seal, sealing effect is more preferable；Limiting component makes the connection of external pipe and connecting tube more stabilized seal, and the service life is longer, avoids the loosening of external pipe or falls off.

Description

A kind of quick coupling of anti-leak

Technical field

The utility model belongs to quick coupling technical field, and in particular to a kind of quick coupling of anti-leak.

Background technique

Quick coupling is that a kind of tool that do not need can be achieved with the connector of pipeline connection or disconnection.Quick coupling can be divided into: It is air snap joint, oxygen fuel gas snap joint, gas-liquid sharing snap joint, oil pressure snap joint, lazy The quick coupling of property gas, the quick coupling of coolant water temperature oil, semiconductor snap joint.Quick coupling has rotary and pull rod Formula etc. controls the connection or disconnected of quick coupling and pipeline by its internal sealing bar and the abutting relation of quick coupling Open, still, since there are certain pressure for internal liquid, when closed between cross after long-time, sealing bar can occur faint Movement, this movement is enough to cause to close inadequate sealing, and liquid leakage seriously affects the normal use of quick coupling, reduces The problem of service life of quick coupling, thus it is proposed that a kind of quick coupling of anti-leak.

Utility model content

The purpose of this utility model is to provide a kind of quick couplings of anti-leak, to solve to propose in above-mentioned background technique Quick coupling have rotary and rod-pulling type etc., controlled by its internal sealing bar and the abutting relation of quick coupling fast The connection or disconnection of quick coupling and pipeline, still, since there are certain pressure for internal liquid, when closed between it is too long when Between after, faint movement can occur for sealing bar, and this movement is enough to cause to close inadequate sealing, and liquid leakage seriously affects The normal use of quick coupling, the problem of reducing the service life of quick coupling.

To achieve the above object, the utility model provides the following technical solutions: a kind of quick coupling of anti-leak, including fast The outside top of quick coupling main body, the quick coupling main body is symmetrically fixed with fixed ear by welding, and the one of the fixed ear Side is fixedly installed pull rod by shaft, and one end of the pull rod is welded with the core shift block other end and is connected with pull ring, The bottom end of the quick coupling main body is welded with connecting tube, and the outer surface of the connecting tube is provided with anti-skid chequer, the company The Basolateral that the outside of adapter tube is located at the quick coupling main body is welded with auxiliary stopper pipe, the quick coupling main body Internal activity be provided with sealing bar, the outer sheath of the sealing bar is equipped with the second adjustable spring, and the top of the sealing bar is welded It connects and is fixed with sealing plate, the bottom of the quick coupling main body offers liquid outlet, and the liquid outlet and the quick coupling The inside of main body is connected to, and being internally located at the liquid outlet for the anti-skid chequer is fixedly installed gasket, the quick coupling The bottom interior surface of main body is fixedly installed the first sealing ring, and the lower surface of the sealing plate is fixed with and first sealing ring Relative to the second sealing ring, be fixedly installed limiting component by being slidably fastened on the auxiliary stopper pipe.

Preferably, the gasket is cirque structure, and the maximum gauge of the gasket is greater than the sealing bar Bottom diameter.

Preferably, the fixed ear is fixedly installed two groups, and fixed ear described in every group is fixed at intervals with two, described Between the distribution of core shift block and the fixed ear at two intervals.

Preferably, there are four the limiting component settings, and four limiting components are isodistantly spaced annular spread in institute It states on auxiliary stopper pipe.

Preferably, the limiting component includes gag lever post and the first adjustable spring, and the inside of the auxiliary stopper pipe opens up There is cylindrical body through-hole, the two sides of the cylindrical body through-hole symmetrically offer movable groove, and the gag lever post runs through the cylindrical body through-hole, And the two sides of the gag lever post are symmetrically fixed with movable convex block corresponding with the movable groove, first adjustable spring One end is fixedly connected with the other end with the end face of the cylindrical body through-hole and is fixedly connected with the end face of the movable convex block.

Compared with prior art, the utility model has the beneficial effects that

(1) the utility model is easy to install and use, compact-sized, adjusts simply, good airproof performance, stable connection uses the longevity Life length；

(2) the utility model is by pulling pull rod, so that the pressure of core shift block or the separate sealing plate of tie rod end, are being depressed While sealing plate, realizes the end of sealing bar and gasket and seal, sealing effect is more preferable；

(3) in the utility model limiting component setting so that the connection of external pipe and connecting tube more stabilized seal, The service life is longer, avoids the loosening of external pipe or falls off.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the schematic diagram of internal structure of the utility model；

Fig. 3 is the limiting component schematic cross-sectional view of the utility model；

Fig. 4 is the gasket schematic cross-sectional view of the utility model；

In figure: 1- quick coupling main body, 2- fixed ear, 3- pull rod, 4- pull ring, 5- anti-skid chequer, 6- connecting tube, 7- auxiliary limit Position pipe, 8- limiting component, the first sealing ring of 9-, the second sealing ring of 10-, 11- core shift block, 12- sealing plate, 13- sealing bar, 14- Gasket, 15- gag lever post, 16- activity convex block, 17- movable groove, the first adjustable spring of 18-, the second adjustable spring of 19-, 20- Liquid outlet.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are please referred to, the utility model provides a kind of technical solution: a kind of fast quick access of anti-leak The outside top of head, including quick coupling main body 1, quick coupling main body 1 is symmetrically fixed with fixed ear 2, fixed ear 2 by welding Side pull rod 3 is fixedly installed by shaft, one end of pull rod 3 is welded with 11 other end of core shift block and is connected with drawing Ring 4, the bottom end of quick coupling main body 1 are welded with connecting tube 6, and the outer surface of connecting tube 6 is provided with anti-skid chequer 5, connecting tube 6 Outside be located at the Basolateral of quick coupling main body 1 and be welded with auxiliary stopper pipe 7, the inside of quick coupling main body 1 is living Dynamic to be provided with sealing bar 13, the outer sheath of sealing bar 13 is equipped with the second adjustable spring 19, and the top of sealing bar 13 is welded with Sealing plate 12, the bottom of quick coupling main body 1 offers liquid outlet 20, and the inside of liquid outlet 20 and quick coupling main body 1 connects Logical, being internally located at liquid outlet 20 for anti-skid chequer 5 is fixedly installed gasket 14, and the bottom interior surface of quick coupling main body 1 is solid Surely be provided with the first sealing ring 9, the lower surface of sealing plate 12 be fixed with the first sealing ring 9 relative to the second sealing ring 10, Limiting component 8 is fixedly installed by being slidably fastened on auxiliary stopper pipe 7.

In order to seal sealing bar 13 and the locking of quick coupling main body 1 more, in the present embodiment, it is preferred that gasket 14 be cirque structure, and the maximum gauge of gasket 14 is greater than the bottom diameter of sealing bar 13.

For the ease of the fixation of pull rod 3, in the present embodiment, it is preferred that fixed ear 2 is fixedly installed two groups, and every group solid Determine ear 2 and is fixed at intervals with two, between the distribution of core shift block 11 and the fixed ear 2 at two intervals.

In order to enable the more stable sealing of connection of external pipeline and connecting tube 6, in the present embodiment, it is preferred that limiting section There are four the settings of part 8, and four limiting components 8 are isodistantly spaced annular spread on auxiliary stopper pipe 7.

For the ease of the interaction and reset of gag lever post 15, in the present embodiment, it is preferred that limiting component 8 includes gag lever post 15 With the first adjustable spring 18, the inside of auxiliary stopper pipe 7 offers cylindrical body through-hole, and the two sides of the cylindrical body through-hole symmetrically open up There is movable groove 17, gag lever post 15 runs through the cylindrical body through-hole, and the two sides of gag lever post 15 are symmetrically fixed with and movable groove 17 Corresponding activity convex block 16, one end of the first adjustable spring 18 is fixedly connected with the other end and activity with the end face of cylindrical body through-hole The end face of convex block 16 is fixedly connected.

The working principle and process for using of the utility model: the quick coupling of the utility model when in use, external pipe It is connected to top and the tail end of quick coupling main body 1, makes quick coupling main body 1 and outer opening quick coupling main body 1 When adapter tube road is connected to, pull ring 4 is pulled downward on, the bottom end of core shift block 12 is risen and is separated with sealing plate 11, sealing plate 11 is It is moved up under the action of the second adjustable spring 19, is connected to quick coupling main body 1 with pipeline；

When disconnecting quick coupling main body 1 and pipeline, pull ring 4 is pulled up, so that core shift block 12 is pressed downward sealing plate 11, makes The second sealing ring 10 on sealing plate 11 is abutted with the first sealing ring 9 of 1 bottom interior surface of quick coupling main body, in addition, After external pipe is connect with connecting tube 6, the top of external pipe is enabled to be embedded in the inside of auxiliary stopper pipe 7, in the first flexible bullet The top of limiting component 8 is abutted with external pipe under the action of spring 18, realizes the locking of external pipe.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of quick coupling of anti-leak, including quick coupling main body (1), it is characterised in that: the quick coupling main body (1) Outside top by welding be symmetrically fixed with fixed ear (2), the side of the fixed ear (2) is fixedly installed drawing by shaft Bar (3), one end of the pull rod (3) are welded with core shift block (11) other end and are connected with pull ring (4), the fast quick access The bottom end of head main body (1) is welded with connecting tube (6), and the outer surface of the connecting tube (6) is provided with anti-skid chequer (5), described The Basolateral that the outside of connecting tube (6) is located at the quick coupling main body (1) is welded with auxiliary stopper pipe (7), described The internal activity of quick coupling main body (1) is provided with sealing bar (13), and it is flexible that the outer sheath of the sealing bar (13) is equipped with second The top of spring (19), the sealing bar (13) is welded with sealing plate (12), and the bottom of the quick coupling main body (1) is opened Equipped with liquid outlet (20), and the liquid outlet (20) is connected to the inside of the quick coupling main body (1), the anti-skid chequer (5) Be internally located at the liquid outlet (20) and be fixedly installed gasket (14), table in the bottom of the quick coupling main body (1) Face is fixedly installed the first sealing ring (9), and the lower surface of the sealing plate (12) is fixed with opposite with first sealing ring (9) In the second sealing ring (10), be fixedly installed limiting component (8) by being slidably fastened on the auxiliary stopper pipe (7).

2. a kind of quick coupling of anti-leak according to claim 1, it is characterised in that: the gasket (14) is annulus Shape structure, and the maximum gauge of the gasket (14) is greater than the bottom diameter of the sealing bar (13).

3. a kind of quick coupling of anti-leak according to claim 1, it is characterised in that: fixed ear (2) fixation is set Two groups are equipped with, and fixed ear described in every group (2) is fixed at intervals with two, the institute of core shift block (11) distribution and two intervals It states between fixed ear (2).

4. a kind of quick coupling of anti-leak according to claim 1, it is characterised in that: limiting component (8) setting There are four, and four limiting components (8) are isodistantly spaced annular spread on the auxiliary stopper pipe (7).

5. a kind of quick coupling of anti-leak according to claim 1, it is characterised in that: the limiting component (8) includes The inside of gag lever post (15) and the first adjustable spring (18), the auxiliary stopper pipe (7) offers cylindrical body through-hole, the cylindrical body The two sides of through-hole symmetrically offer movable groove (17), and the gag lever post (15) runs through the cylindrical body through-hole, and the gag lever post (15) two sides are symmetrically fixed with movable convex block (16) corresponding with the movable groove (17), first adjustable spring (18) one end is fixedly connected with the fixed company in end face of the other end and the movable convex block (16) with the end face of the cylindrical body through-hole It connects.