CN102853190A

CN102853190A - Fast joint

Info

Publication number: CN102853190A
Application number: CN2012103604803A
Authority: CN
Inventors: 高克火
Original assignee: YUHUAN AUTO PARTS INDUSTRIAL Co Ltd
Current assignee: YUHUAN AUTO PARTS INDUSTRIAL Co Ltd
Priority date: 2012-09-26
Filing date: 2012-09-26
Publication date: 2013-01-02
Anticipated expiration: 2032-09-26
Also published as: CN102853190B

Abstract

The invention relates to a fast joint comprising a fast joint body and a pipe joint seat. A joint nut seat is mounted on the pipe joint seat; the outer wall of the portion of the fast joint body inserted into the pipe joint seat is provided with a locking spring groove and a first O-shaped ring groove; a sealing ring for sealing the fast joint body and the joint nut seat is arranged in the first O-shaped ring groove; a joint capturing locking spring for preventing the fast joint body falling off is arranged in the locking spring groove; and a sealing gasket is arranged between the joint nut seat and the pipe joint seat. The fast joint realizes the fast assembling by coordination between the joint capturing locking spring and the locking spring groove and realizes the better sealing effect by changing the position of a joint face of the sealing ring and the compact degree of the sealing ring and the O-shaped ring groove.

Description

The quick inserting joint

Technical field

The present invention relates to a kind of fast connecting joint, relate in particular to the quick inserting joint (having another name called quick inserting joint) that uses in a kind of automobile pipeline, belong to the auto parts machinery technical field.

Background technique

In automobile (comprising oil, water and gas) pipeline connected, the at present domestic collar joint that usually all adopts passed through the connection of cutting ferrule nut.In order to make joint not produce leakage, must make the joint that screws up with a wrench.But textural at automobile, the place that this joint much is installed, its operating space is quite little, uses the instrument difficults such as spanner.The joint that is positioned at these positions is the generator tube pipeline connector leakage accident owing to twist tight often.

Summary of the invention

For defective of the prior art, the present invention is a kind of quick inserting joint of easy to assembly, good sealing effect.

The technical solution adopted in the present invention is to achieve the above object of the invention:

A kind of quick inserting joint, it is characterized in that comprising rapid pipe joint body and pipe joint chair, the Female connector fittings seat is installed on the described pipe joint chair, the outer wall that described rapid pipe joint body inserts described pipe joint chair position is shaped with jump-ring slot and an O type ring recess, be provided with the seal ring that described rapid pipe joint body and described Female connector fittings seat are sealed in the described O type ring recess, be provided with the joint lock-bit jump ring that prevents that described rapid pipe joint body from coming off in the described jump-ring slot, be provided with sealing gasket between described Female connector fittings seat and the described pipe joint chair.

As the further optimization to technique scheme, be screw-thread fit between described Female connector fittings seat and the described pipe joint chair.

As the further optimization to technique scheme, described rapid pipe joint body inserts the end at described pipe joint chair position and makes conical surface, is provided with packing ring between described conical surface and the described pipe joint chair.

As the further optimization to technique scheme, the radian between the plane, diameter place of the mold joint of described seal ring and seal ring is π/6-π/3.

As the further optimization to technique scheme, described seal ring all contacts with bottom land, two cell walls and the described Female connector fittings seat inwall of a described O type ring recess.

As the further optimization to technique scheme, the outer wall that described rapid pipe joint body inserts described pipe joint chair position also is shaped with the 2nd O type ring recess, is provided with in described the 2nd O type ring recess to prevent that extraneous dust from entering the dust ring in the quick inserting joint.

As the further optimization to technique scheme, the radian between the plane, diameter place of the mold joint of described dust ring and dust ring is π/6-π/3.

As the further optimization to technique scheme, the position that described rapid pipe joint body connects tube bank is shaped with for the laemodipodiform that is connected fast with tube bank against tooth.

The invention discloses the quick inserting joint that uses in a kind of automobile pipeline, this connection-peg is realized fast assembling by cooperating of joint lock-bit jump ring and jump-ring slot, realizes better sealing effect by the position of change seal ring mold joint and the tightness degree of seal ring and O type ring recess.

Below in conjunction with accompanying drawing embodiments of the present invention are described further.

Description of drawings

Fig. 1 is the structural representation of a kind of preferred embodiments of the present invention when being seated;

Fig. 2 is the structural representation of the seal ring among Fig. 1;

Fig. 3 is seal ring among Fig. 1 and the cooperating structure schematic representation of O type ring recess and Female connector fittings seat;

Fig. 4 struts the front phase diagram of joint lock-bit jump ring in rapid pipe joint body insertion Female connector fittings seat process corresponding to the mode of execution of Fig. 1;

Fig. 5 is the phase diagram of rapid pipe joint body corresponding to the mode of execution of Fig. 1 when strutting joint lock-bit jump ring.

Embodiment

Shown in Fig. 1-3, a kind of quick inserting joint comprises rapid pipe joint body 1 and pipe joint chair 5, on the described pipe joint chair 5 Female connector fittings seat 4 is installed, and is screw-thread fit between Female connector fittings seat 4 wherein and the pipe joint chair 5.Its concrete structure is that the inwall of described pipe joint chair 5 is shaped with internal thread, and the outer wall of Female connector fittings seat 4 is shaped with outside thread; Female connector fittings seat 4 and pipe joint chair 5 are realized fixing by the cooperation of internal and external screw thread.Be provided with sealing gasket 8 between described Female connector fittings seat 4 and the described pipe joint chair 5, sealing gasket 8 is positioned at the top of screw thread.

The outer wall at above-mentioned rapid pipe joint body 1 Inserting Tube joint chair 5 positions is shaped with an O type ring recess, the 2nd O type ring recess and jump-ring slot.

Be provided with the seal ring 3 that described rapid pipe joint body 1 and described Female connector fittings seat 4 are sealed in the described O type ring recess, radian between the plane, diameter place of the mold joint of sealing circle 3 and seal ring 3 is π/6-π/3, the central angle A size that namely is equivalent among corresponding Fig. 3 is 30 °-60 °, is preferably 45 °.

Present seal ring is deviating from easily of product after the design that makes things convenient for mould and seal ring moulding and the die sinking, and the diameter institute that its mold joint all is positioned at seal ring if being equivalent to seal ring cuts along mold joint, just in time is cut into two halves in the plane.And seal ring leaves the very difficult burr of being disposed fully, burr etc. because of the reason of forming process at mold joint, so there is concavo-convex state in the position of this mold joint.And in use, the position that the part that need seal contacts with seal ring just in time is again to have the concaveconvex structure mold joint, and this contact has affected sealing effect to a certain extent.The seal ring 3 of present embodiment, there is certain angle in the plane, diameter place of its mold joint and seal ring, namely be equivalent to the plane, diameter place that burr, burr 31 have left seal ring, therefore can not contact with the part of need sealing in use yet, sealing effect is better, especially when in the joint circulation be high-pressure medium the time.

Be provided with in the 2nd above-mentioned O type ring recess and prevent that extraneous dust from entering the dust ring 2 in the quick inserting joint.In fact this dust ring 2 also plays the effect of sealing simultaneously, is equivalent to the media implementation double seal in the butt joint, plays preferably sealing effect.

Be provided with the joint lock-bit jump ring 7 that prevents that described rapid pipe joint body 1 from coming off in the described jump-ring slot.After the quick inserting joint assembled, joint lock-bit jump ring 7 parts were positioned at the jump-ring slot of rapid pipe joint body 1, and another part is stuck in the end of Female connector fittings seat 4.

As the further optimization to technique scheme, conical surface is made, the insertion of conical surface structure fast and easy fittings body 1 in the end that described rapid pipe joint body 1 inserts described pipe joint chair 5 positions.Be provided with packing ring 6 between described conical surface and the described pipe joint chair 5, this packing ring namely plays the effect of sealing, plays again the effect of the conical surface of buffering rapid pipe joint body 1.

As the further optimization to technique scheme, make close to square (width of an actual O type ring recess is slightly larger than its height), so that described seal ring 3 all contacts with bottom land, two cell walls and described Female connector fittings seat 4 inwalls of a described O type ring recess in the cross section of a described O type ring recess.In order to make things convenient for packing into of seal ring, O type ring recess of the prior art, its width are generally obvious greater than its height.Therefore this seal ring only contacts in the bottom surface with O type ring recess, and has the space between two cell walls of O type ring recess, when there are wearing and tearing at the position that seal ring contacts with O type ring recess bottom surface, is easy to cause leakage.And the seal ring of present embodiment is owing to exist three sealings with O type ring recess, and therefore wherein any one side is worn, and does not all affect its sealability.In addition, the advantage that this seal ring is larger is: seal ring in O type ring recess, occur after the interference compressive strain with O type ring recess bi-side interference sealing in, improved the radial direction expanding force of seal ring, further improved sealability.

The position that described rapid pipe joint body 1 connects tube bank is shaped with for the laemodipodiform that is connected fast with tube bank against tooth 11.After being connected on the described rapid pipe joint body 1, tube bank (being generally nylon restrains) owing to be subject to the effect of contrary tooth 11, can not come off, and fixing all fairly good with sealing effect.

The installation process of this quick inserting joint is as follows:

At first packing ring 6 and joint lock-bit jump ring 7 are put into pipe joint chair 5 inner chambers, be screwed into pipe joint chair 5 after again Female connector fittings seat 4 being put sealing gasket 8, then cover is had the rapid pipe joint body 1 of seal ring 3 and dust ring 2 to insert Female connector fittings seat 4, as shown in Figure 4; And strut gradually joint lock-bit jump ring 7, as shown in Figure 5; Put in place until insert, joint lock-bit jump ring 7 resets and falls in the jump-ring slot at this moment, has so far finished whole assembling.

When needing dismounting, check first to have or not pressurization in the pipeline, then Female connector fittings seat 4 is back-outed, joint lock-bit jump ring 7 is broken into two with one's hands taken off again, at last rapid pipe joint body 1 is extracted out from Female connector fittings seat 4.

Again need to check whether Female connector fittings seat 4 and seal ring have damage before the assembling.

More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that related domain need not creative work and just can design according to the present invention make many modifications and variations.Therefore, all in the art technician on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should fall within the scope of protection of the present invention under this invention's idea.

Claims

1. quick inserting joint, it is characterized in that comprising rapid pipe joint body (1) and pipe joint chair (5), Female connector fittings seat (4) is installed on the described pipe joint chair (5), the outer wall that described rapid pipe joint body (1) inserts described pipe joint chair (5) position is shaped with jump-ring slot and an O type ring recess, be provided with the seal ring (3) that described rapid pipe joint body (1) and described Female connector fittings seat (4) are sealed in the described O type ring recess, be provided with the joint lock-bit jump ring (7) that prevents that described rapid pipe joint body (1) from coming off in the described jump-ring slot, be provided with sealing gasket (8) between described Female connector fittings seat (4) and the described pipe joint chair (5).

2. quick inserting joint according to claim 1 is characterized in that being between described Female connector fittings seat (4) and the described pipe joint chair (5) screw-thread fit.

3. quick inserting joint according to claim 2 is characterized in that the end that described rapid pipe joint body (1) inserts described pipe joint chair (5) position makes conical surface, is provided with packing ring (6) between described conical surface and the described pipe joint chair (5).

4. quick inserting joint according to claim 1 is characterized in that the radian between the plane, diameter place of the mold joint of described seal ring (3) and seal ring (3) is π/6-π/3.

5. quick inserting joint according to claim 1 is characterized in that described seal ring (3) all contacts with bottom land, two cell walls and described Female connector fittings seat (4) inwall of a described O type ring recess.

6. quick inserting joint according to claim 1, it is characterized in that the outer wall that described rapid pipe joint body (1) inserts described pipe joint chair (5) position also is shaped with the 2nd O type ring recess, be provided with in described the 2nd O type ring recess and prevent that extraneous dust from entering the dust ring (2) in the quick inserting joint.

7. quick inserting joint according to claim 6 is characterized in that the radian between the plane, diameter place of the mold joint of described dust ring (2) and dust ring (2) is π/6-π/3.

8. quick inserting joint according to claim 1 is characterized in that position that described rapid pipe joint body (1) connects tube bank is shaped with for the laemodipodiform that is connected fast with tube bank against tooth (11).