CN210034723U

CN210034723U - High-reliability self-locking quick joint

Info

Publication number: CN210034723U
Application number: CN201920828298.3U
Authority: CN
Inventors: 施斌海
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-02-07
Anticipated expiration: 2029-06-04

Abstract

The utility model provides a high reliability auto-lock quick-operation joint, includes public head and female head, and public head pegs graft on female head, and female head includes main part, outer sliding sleeve, back seat. The main part links to each other with the dead mode of back-off lock, can not dismantle, and outer sliding sleeve encircles and sets up in the main part outside, has spacing step to set for each other, also can't dismantle, and the reliability that the product used has been improved greatly in the settlement of peculiar structure to effectively improve airtight stability, security and durability.

Description

High-reliability self-locking quick joint

Technical Field

The utility model relates to a pneumatic tube coupling technical field specifically is a self-locking quick-operation joint of high reliability.

Background

When the pipelines of the pneumatic equipment are connected, a self-locking quick connector is widely adopted, is connected with a delivery pipe of a compressor and is combined with a pneumatic tool, and powerful compressed gas is effectively output by the tool to achieve the purpose of use. Its main part of auto-lock quick-operation joint female on the market adopts threaded connection with the back seat, and the pressure that bears is very limited, and high pressure condition leakproofness is poor, and the main part is connected with the hidden danger that the pine takes off because of threaded connection with the back seat during long-term operation, and when public head is pegged graft, if the slider case is pushed too deeply, causes the slider case card to the spacing step department of main part and can't kick-back automatically easily.

Disclosure of Invention

In order to overcome the above-mentioned not enough among the prior art, the utility model provides a main part, outer sliding sleeve, the back seat of peculiar structure can high strength high reliability connection each other, and will be difficult to dismantle after nevertheless assembling to can effectively avoid above-mentioned hidden danger.

The utility model provides a technical scheme that above-mentioned problem adopted does, a auto-lock quick-operation joint of high reliability, including public head and female head, public head is pegged graft on female head, and female head includes main part, outer sliding sleeve, back seat.

The main part one end is equipped with the back-off boss, and the inboard corresponding position of back seat is equipped with the catching groove, and the main part is pressed in the back seat, makes the back-off boss fall into the inboard catching groove position of back seat, fastening connection.

Be equipped with the slider case in the main part, it is equipped with the sealing washer with public head access position, ensures that public head access position seals butt, and the end disposes the valve mouth, with slider case cavity intercommunication, valve mouth upper end is equipped with individual layer or double-deck sealing washer, and the valve tail end also is equipped with the sealing washer, and slider case end passes the main part, runs through spring, fixed cover, neck bush in proper order and stretches into to the back seat in.

Furthermore, the inner bushing is a hollow part, the outer ring is provided with a sealing ring which is in sealing butt joint with the rear seat, the inner ring of the inner bushing is provided with a sliding block valve core which penetrates through the inner ring, and the single-layer or double-layer sealing ring at the upper end of the valve opening is in sealing butt joint with the inner wall of the inner bushing.

Furthermore, the fixed sleeve is a hollow cylindrical part, the sliding block valve core penetrates through the hollow cylindrical part and is placed at the position, corresponding to the inner wall, of the main body reverse buckling boss during installation, and a spring is further arranged between the upper section position of the sliding block valve core and the fixed sleeve.

Further, the outer sliding sleeve encircles and sets up in the outside of main part, and the outer sliding sleeve inboard is equipped with spacing step.

Furthermore, the main body outer ring is also sleeved with a spring, one end of the spring props against the upper end of the rear seat, and the other end of the spring props against the lower end of the limiting step on the inner wall of the outer sliding sleeve.

Furthermore, one end of the main body is provided with a plurality of through holes, and the steel balls are arranged in the through holes, are internally touched with the slide block valve core and are externally touched with the inner wall of the outer sliding sleeve.

The beneficial effects of the utility model reside in that main part and back seat link to each other with the dead mode of back-off lock, are difficult to dismantle, and outer sliding sleeve encircles and sets up in the main part outside, has spacing step to set for each other, is difficult to dismantle, and the reliability that the product used has been improved greatly in the settlement of peculiar structure, effectively improves airtight stability, security and durability.

Drawings

FIG. 1 is a cross-sectional view of the assembled overall structure of an embodiment of the present invention;

fig. 2 is a sectional view showing the structure of each component of the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, the self-locking quick coupling with high reliability comprises a male coupling 14 and a female coupling 15, wherein the male coupling 14 is inserted into the female coupling 15, and the female coupling 15 comprises a main body 1, an outer sliding sleeve 12 and a rear seat 7.

In this embodiment, main part 1 one end is equipped with back-off boss 23, the inboard corresponding position of back seat 7 is equipped with catching groove 18, and main part 1 presses in the access back seat 7, makes back-off boss 23 fall into the inboard catching groove 18 position of back seat, and fastening connection is in case the access is difficult to break away from.

In this embodiment, a slider valve element 3 is disposed in the main body 1, a sealing ring 13 is disposed at an access position of the slider valve element 3 and the access position of the male head 14, so as to ensure that the access position of the male head 14 is in sealing abutment with the access position, a valve opening 16 is disposed at a tail end and is hollow and communicated with the slider valve element 3, a double-layer sealing ring 9 is disposed at an upper end of the valve opening 16, a sealing ring 6 is also disposed at a tail end of the valve opening 16, and the tail end of the slider valve element 3 penetrates through the main body 1, sequentially penetrates.

In this embodiment, the inner bushing 5 is a hollow component, the outer ring is provided with a sealing ring 8, which is in sealing abutting contact with the rear seat 7, the inner ring of the sliding block valve core 3 penetrates through the inner bushing, and the single-layer or double-layer sealing ring 9 at the upper end of the valve opening 16 is in sealing abutting contact with the inner wall of the inner bushing 5, when the male head 14 is not connected, the sealing ring 6 at the tail end of the valve opening 16 is in sealing abutting contact with the tail end position 17 of the inner bushing 5, the valve opening 16 is in a closed state relative to the rear seat 7, when the male head 14 is connected, the sliding block valve core 3 moves towards the rear seat, so that the sealing ring 6 at the tail end of the valve opening 16 is separated from the tail.

In this embodiment, the fixing sleeve 4 is a hollow cylindrical component, the slider valve core 3 penetrates through the hollow cylindrical component, and is placed at a position corresponding to the inner wall of the reverse-buckling boss 23 of the main body 1 during installation, so as to prevent the reverse-buckling boss 23 of the main body 1 from being separated from the buckling groove 18 of the back seat 7, a spring 10 is arranged between the upper section position of the slider valve core 3 and the fixing sleeve 4, after installation, the slider valve core 3 is in an upward force, the sealing ring 6 at the tail end of the valve opening 16 and the tail end position 17 of the lining sleeve 5 are in sealing and abutting connection due to the action of the spring force, when the valve opening 16 is communicated with the back seat 7, the slider valve core 3 extrudes the spring 10, and when the valve opening 16 is not communicated with the back seat 7, the slider.

In this embodiment, the outer sliding sleeve 12 is disposed around the outer side of the main body 1, and a limiting step 20 is disposed on the inner side of the outer sliding sleeve 12.

In this embodiment, the outer ring of the main body 1 is further sleeved with a spring 11, one end of the spring 11 abuts against the upper end of the rear seat 7, and the other end abuts against the lower end 20-2 of the limit step on the inner wall of the outer sliding sleeve 12.

In this embodiment, one end of the main body 1 has a plurality of through holes 22, the steel balls 2 are disposed therein, and the steel balls 2 internally touch the slider valve element 3 and externally touch the upper end 20-1 of the limit step of the outer sliding sleeve 12. When the male head 14 is inserted, the slide valve core 3 moves towards the direction of the rear seat 7, the groove position 19 of the male head 14 is just opposite to the steel ball 2, the steel ball 2 is pressed, the half body rolls into the groove 19 to lock the male head 14, meanwhile, the outer sliding sleeve 12 moves towards the direction of the male head 14, and the steel ball 2 is abutted against the limit step 20 of the outer sliding sleeve 12. When the outer sliding sleeve 12 is pushed to move towards the backseat 7, the outer sliding sleeve 12 compresses the spring 11, so that the upper end 20-1 of the limit step is aligned with the steel ball, the steel ball 2 half body rolls back to the upper end 20-1 of the limit step, and the male head 14 is unlocked.

The foregoing is not intended to be exhaustive or to limit the invention to the precise forms disclosed, and other embodiments are possible, and various modifications and variations can be made by those skilled in the art without departing from the spirit of the invention.

Claims

1. The utility model provides a high reliability auto-lock quick-operation joint, includes public head and female head, public head is pegged graft on female head, female head contains main part, outer sliding sleeve, back seat, its characterized in that: the main part stretches into the back seat and links to each other with the back seat, outer sliding sleeve encircles the outside that sets up at the main part, still be equipped with the slider case in the main part, it is equipped with the sealing washer with public head access position, and slider case end disposes the valve mouth, and with slider case cavity intercommunication, valve mouth upper end is equipped with individual layer or double-deck sealing washer, and the valve tail end also is equipped with the sealing washer, and slider case end passes the main part, stretches into to the back seat in.

2. The high-reliability self-locking quick joint as claimed in claim 1, wherein: the main part is sleeved in the rear seat, so that the inverted boss falls into the position of the buckling groove in the inner side of the rear seat, and the main part is fastened and connected and is difficult to disassemble.

3. The high-reliability self-locking quick joint according to any one of claims 1 to 2, characterized in that: the outer sliding sleeve inboard is provided with spacing step, the main part also is equipped with a spacing step, and both assemble the back, are difficult to dismantle.

4. The high-reliability self-locking quick joint as claimed in claim 3, wherein: the slider valve core is also penetrated with a spring, a fixed sleeve and an inner bushing.

5. The high-reliability self-locking quick joint as claimed in claim 4, wherein: the inner bushing is a hollow part, and the outer ring is provided with one or two layers of sealing rings which are in sealing butt joint with the inner wall of the rear seat.

6. The high-reliability self-locking quick joint according to any one of claims 4 to 5, wherein: the fixed sleeve is a hollow cylindrical part and is placed at the position of the inner wall corresponding to the main body reverse buckle boss during installation, so that the main body reverse buckle boss is prevented from being separated from the buckle groove of the rear seat, and a spring is further arranged between the upper section position of the slide block valve core and the fixed sleeve.

7. The high-reliability self-locking quick joint as claimed in claim 6, wherein: when the male head is not inserted into the female head, the slide block valve core has upward force due to the abutting action of the spring, so that the sealing ring at the tail end of the valve port is in sealing abutting joint with the tail end of the inner bushing, and when the male head is inserted into the female head, the slide block valve core extrudes the spring, so that the sealing ring at the tail end of the valve port is separated from the tail end of the inner bushing.

8. The high-reliability self-locking quick joint as claimed in claim 7, wherein: the main body outer ring is also sleeved with a spring, one end of the spring props against the upper end of the rear seat, and the other end of the spring props against the lower end of the limiting step of the inner wall of the outer sliding sleeve.

9. The high-reliability self-locking quick joint as claimed in claim 8, wherein: one end of the main body is provided with a plurality of through holes, and the steel balls are arranged in the through holes, are internally touched with the slide block valve core and are externally touched with the inner wall of the outer sliding sleeve.