CN202360968U

CN202360968U - Multi-positioning flared quick connector

Info

Publication number: CN202360968U
Application number: CN2011204655818U
Authority: CN
Inventors: 张忠东; 沈巧联
Original assignee: NINGBO ZHONGLI INDUSTRY Co Ltd
Current assignee: NINGBO ZHONGLI INDUSTRY Co Ltd
Priority date: 2011-11-22
Filing date: 2011-11-22
Publication date: 2012-08-01
Anticipated expiration: 2021-11-22

Abstract

The utility model relates to a quick connector used for quick connection of a pipeline with steps or upset heads, and discloses a multi-positioning flared quick connector, which is widely applied to pipeline evacuating, gaseous and liquid medium filling and leakage detecting operations for hydraulic and pneumatic control filling systems in industries of temperature control and mechanical equipment, space flight and aviation equipment, medical apparatus and instruments and the like. The multi-positioning flared quick connector structurally comprises a main body, a cutting ferrule, steel balls, a connector, a valve core, springs, a plug screw, a seal ring and the like. The structure is mainly characterized in that multiple conical holes and steel balls uniformly distributed on the periphery at the front part of the main body are designed into a double-row structure, and annular grooves assembled or disassembled with the steel balls are arranged on the inner wall of the cutting ferrule; and the improved quick connector satisfies multi-positioning connection of the steel balls, and does not easily swing after the upset opening pipe and the quick connector are tightly locked, so that the connection is more stable, the positioning is reliable, and the seal effect of the connection is efficiently ensured.

Description

The flared type rapid pipe joint of many location

Technical field

The utility model relates to a kind of rapid pipe joint that pipeline connects fast that is used for, and is meant the flared type rapid pipe joint of many location specifically.

Background technique

At present; Hydraulic pressure, pneumatic control filling system pipeline in industries such as car air conditioner, machinery, space flight and aviation equipment, medical apparatuss vacuumize, fill the gas-liquid medium, in the leak detection operation, all need rely on fast connecting joint and carry out pipeline and connect, particularly with the pipeline fitting of enlarging pier nose form to fill, leak detection pressure is higher and require sealing reliable again; And the existing filled monitoring tap that is used for the connection of enlarging heading pipe fitting; Mainly be to realize connecting through the step surface of single-row steel ball buckle flared pipe fitting, because single-row steel ball and flared pipe fitting are to contact, the locking back is prone to produce swings; It is unreliable to locate, so can't effectively guarantee sealing.

Summary of the invention

The utility model technical problem to be solved be to overcome the defective of existing technology and provide a kind of connect firm, the location is reliable, many location flared type rapid pipe joint of good airproof performance.

The technical problem of the utility model realizes through following technological scheme:

A kind of many location flared type rapid pipe joint comprises tubular body, and this body front part is provided with the cutting ferrule of movable set and axial limiting, is provided with the cutting ferrule spring between the outer shoulder of shoulder and main body in this cutting ferrule and makes pushing tow; Body front part also is provided with a plurality of taper holes of circumference uniform distribution, is equipped with steel ball in each taper hole; Described back body is provided with the tubulose connecting head that is tightly connected; Be provided with in the described main body and be tightly connected and make the spool axially move back and forth along main body, this spool front end is provided with the fixing seal ring of plug screw, is provided with spring between spool rear end and the connecting head and makes pushing tow, and the spool both sides are provided with the side opening of a plurality of circumference uniform distributions; Be provided with taper hole in the described main body, this taper hole is moved axially by spool to be communicated with said side opening or closes, and a plurality of taper holes and the steel ball of described body front part circumference uniform distribution are designed to double column structure; Described cutting ferrule inwall is provided with annular groove equipped with said steel ball or that break away from.

Described main body is provided with fixing steel ball, the corresponding safety groove that is equipped with said steel ball that on cutting ferrule, is provided with.

Described safety groove is " ┛ " type groove that is made up of radial groove and axial groove.

The axial limiting structure of said cutting ferrule is to be provided with Steel Cable Baffle Ring and plain washer in body front end portion.

Compared with prior art; The utility model mainly is that a plurality of taper holes and the steel ball with the body front part circumference uniform distribution is designed to double column structure, and also is provided with annular groove equipped with steel ball or that break away from the cutting ferrule inwall, and being located by connecting of steel ball satisfied in the rapid pipe joint after the improvement more; So mouthful pipe fitting and this rapid pipe joint locking back is difficult for producing swing upsetting; Connect more firmly, and the location is reliable, has effectively guaranteed the sealing that connects.

Description of drawings

Fig. 1 is the sectional structure schematic representation (heading Guan Wei is connected in the rapid pipe joint) of the utility model.

Fig. 2 is the sectional structure schematic representation (the heading pipe is connected in the rapid pipe joint) of the utility model.

Fig. 3 is the structural representation of cutting ferrule.

Fig. 4 is the structural representation of spool.

Embodiment

To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.

Like Fig. 1～shown in Figure 4,1. heading pipe, 2. Steel Cable Baffle Ring, 3. plain washer, 4. steel ball, 5. cutting ferrule, 6. seal ring, 7. cutting ferrule spring, 8. steel ball, 9. safety groove, 91. radial grooves, 92. axial grooves, 10. " O " type circle, 11. taper holes, 12. springs, 13. main bodys, 14. connecting heads, 15. spools, 16. plug screws, 17. annular grooves, 18. side openings.

The flared type rapid pipe joint of many location, like Fig. 1, shown in Figure 2, being applicable to a kind ofly has the pipeline of step or heading to connect fast, for example can be used with heading pipe 1.

The utility model is that this rapid pipe joint is anterior with the view left side of Fig. 1; The right side is this rapid pipe joint rear portion; It has the main body 13 of a hollow tubular structure, and this body front part is provided with movable set and makes axially movable cutting ferrule 5 along main body, and the cutting ferrule front end is stopped by set Steel Cable Baffle Ring of main body 13 front ends 2 and plain washer 3 can make axial limiting; Can prevent that cutting ferrule 5 breaks away from from main body 13 in running, the cutting ferrule front-end face is designed to the conical surface; Cutting ferrule 5 rear ends are provided with interior shoulder, are provided with the cutting ferrule spring 7 of pushing tow in this between shoulder and the main body 13 outer shoulders; Simultaneously also be provided with safety groove 9 in cutting ferrule 5 rearward end, this safety groove is as shown in Figure 3, is " ┛ " type groove that is made up of radial groove 91 and axial groove 92; The corresponding steel ball 8 that outside main body 13, is provided with riveted fixing; Steel ball can be fitted in the above-mentioned safety groove 9, and its manner of execution is that cutting ferrule 5 turns an angle, and steel ball 8 just can rotate and get in the axial groove 92 along radial groove 91; Steel ball 8 has just played the safety effect of cutting ferrule 5 like this, and receiving under the external force effect also not at cutting ferrule can slippage; Cutting ferrule 5 inwalls are provided with annular groove 17 one.

Described main body 13 front portions also are provided with the taper hole of biserial circumference uniform distribution; Steel ball 4 all is installed in each taper hole; This taper hole is the little structure of outer imperial palace; So steel ball can not drop in main body 13 after installing, biserial steel ball 4 is all hidden on main body 13, so also can outside taper hole, not break away from by the cutting ferrule 5 of cutting ferrule spring 7 pushing tows simultaneously.When heading pipe 1 was not connected with this rapid pipe joint, the steel ball 4 that is positioned at just in time was fitted in the annular groove 17 of cutting ferrule 5.

Described main body 13 rear portions are provided with the connecting head 14 that is threaded, and are provided with 10 sealings of " O " type circle between this connecting head and the main body, and the connecting head inner hollow communicates with main body, and source of the gas or other equipment are threaded on connecting head 14.

Be provided with in the described main body 13 with two pass " O " type circle and make the spool 15 that sealing is installed, this spool can be done forward and backwardly axially to move back and forth along main body 13.Spool 15 front ends are provided with the seal ring of fixing with plug screw 16 6, are mainly used in the effect of playing radial seal when heading pipe 1 is connected in this rapid pipe joint; Spool 15 rear ends are provided with spring seat, and spring 12 is installed on this spring seat, and the direct pushing tow of the spring the other end is on the interior shoulder of connecting head 14; Spool 15 is as shown in Figure 4, and interior is blind hole structure, and the spool both sides are provided with the side opening 18 of a plurality of circumference uniform distributions, and this side opening communicates with the blind hole of spool 15.

Also be provided with taper hole 11 structures in the described main body 13, the inclined-plane of this taper hole is moved axially by spool 15 simultaneously by " O " type circle on the spool 15 10 sealing, and this taper hole 11 is communicated with side opening 18 on the spool or closes.

As shown in Figure 1 when the heading pipe 1 of the utility model does not connect, this moment, steel ball 4 was positioned at the annular groove 17 of cutting ferrule 5, and spool 15 receive spring 12 forward pushing tow make the side opening 18 on the spool close with the taper holes 11 in the main body 13; When heading pipe 1 connects; Its mouthful meeting of upsetting steel ball 4 pushing tow spools 15 of crossing as shown in Figure 2 move backward; This moment, steel ball 4 broke away from cutting ferrule 5 annular grooves 17, cutting ferrule 5 under cutting ferrule spring 7 pushing tows, the conical surface of its front end travels forward and oppress the 4 tight obvolvents of biserial steel ball on heading pipe 1, swing with the restriction mouthful pipe of upsetting; This heading pipe 1 forms with spool 15 through seal ring 6 and is tightly connected; Simultaneously make spool 15 also mobile backward because heading pipe 1 inside plug-in mounting connects, so the side opening 18 on the spool just is connected with main body 13 interior taper holes 11, so heading pipe 1, main body 13 and connecting head 14 can form connected state; When discharging heading pipe 1 when getting back to not-connected status shown in Figure 1; The elastic force that only need pinch cutting ferrule 5 and overcome cutting ferrule spring 7 moves backward, and steel ball 4 gets in the annular groove 17 of cutting ferrule 5 again, just can break away from the obvolvent to heading pipe 1; This moment, spool 15 travelled forward under the spring force effect; And then heading pipe pushing tow realized break away from, " O " type circle 10 on the spool 15 combines with the taper hole 11 inclined-planes sealing of main body 13 simultaneously, and the gas-liquid medium just can not leak.

Claims

1. the flared type rapid pipe joint of location more than a kind comprises tubular body (13), and this body front part is provided with the cutting ferrule (5) of movable set and axial limiting, is provided with cutting ferrule spring (7) between the outer shoulder of shoulder and main body (13) in this cutting ferrule and makes pushing tow; The anterior a plurality of taper holes that also are provided with circumference uniform distribution of main body (13) are equipped with steel ball (4) in each taper hole; Described main body (13) rear portion is provided with the tubulose connecting head (14) that is tightly connected; Be provided with the spool (15) that is tightly connected and does along main body axially to move back and forth in the described main body (13); This spool front end is provided with the fixing seal ring (6) of plug screw (16); Be provided with spring (12) between spool (15) rear end and the connecting head (14) and make pushing tow, spool (15) both sides are provided with the side opening (18) of a plurality of circumference uniform distributions; Be provided with taper hole (11) in the described main body (13); This taper hole is moved axially by spool (15) to be communicated with said side opening (18) or closes, and it is characterized in that a plurality of taper holes of the anterior circumference uniform distribution of described main body (13) and steel ball (4) are designed to double column structure; Described cutting ferrule (5) inwall is provided with annular groove (17) equipped with said steel ball (4) or that break away from.

2. many location flared type rapid pipe joint according to claim 1 is characterized in that described main body (13) is provided with fixing steel ball (8), the corresponding safety groove (9) that is equipped with said steel ball (8) that on cutting ferrule (5), is provided with.

3. many location flared type rapid pipe joint according to claim 2 is characterized in that described safety groove (9) is " ┛ " type groove that is made up of radial groove (91) and axial groove (92).

4. according to each described many location flared type rapid pipe joint of claim 1 ~ 3, the axial limiting structure that it is characterized in that said cutting ferrule (5) is to be provided with Steel Cable Baffle Ring (2) and plain washer (3) at main body (13) front end.