CN201302018Y

CN201302018Y - Swivel joint

Info

Publication number: CN201302018Y
Application number: CNU2008201677353U
Authority: CN
Inventors: 赖明辉
Original assignee: FORWELL PRECISION MACHINERY (NINGBO) Ltd
Current assignee: FORWELL PRECISION MACHINERY (NINGBO) Ltd
Priority date: 2008-11-12
Filing date: 2008-11-12
Publication date: 2009-09-02
Anticipated expiration: 2018-11-12

Abstract

The utility model discloses a swivel joint, which comprises an axial core and a main body. One end without threads of the axial core is inserted into a through hole on the main body, the tail end of the axial core extending out of the through hole is fixed via an outer retaining ring, and an oil inlet channel arranged inside the axial core is connected with an oil outlet channel arranged inside the main body; slotted holes are formed on the inner wall of the through hole in the main body, and O-shaped rings and back supporting rings for sealing are arranged inside the slotted holes. The two slotted holes are formed on the inner wall of the through hole and arranged at both ports of the through hole respectively. The swivel joint provided by the utility model has the following beneficial effects: (1) the main body can rotate longitudinally around the axial core due to the lack of fixation between the main body and the axial core, so as to ensure an oil pipe to discharge oil at an arbitrary angle, namely to change the oil discharging direction of the oil pipe and meet the requirements of the die clamper for motion; (2) the radian of the oil pipe can be changed so as to buffer the oil pressure onto the oil pipe, increase the allowance for oil pipe length and prolong the service life of the oil pipe.

Description

Swivel coupling

Technical field

The utility model relates to a kind of joint, more specifically says, it relates to a kind of swivel coupling.

Background technique

Quick die change system is in installation process, and conventional 90 degree joints can not satisfy the demands when installing; There is following problem in the use in conventional 90 degree joints: 1, after the locking, fuel-displaced direction is fixed, and can't satisfy the demand that die clamper moves; 2, can not change the crooked radian of oil pipe, oil pipe often breaks because of bend angle is excessive.

Summary of the invention

The purpose of this utility model is to overcome deficiency of the prior art, and a kind of rotating swivel coupling of 360 degree of doing is provided.

The utility model solves the technological scheme that its technical problem adopts: this swivel coupling, comprise axle center and body, the threadless end in axle center is inserted in the through hole on the body, the axle center tail end that passes this through hole is fixed by outer buckle ring, and the oil discharge passage that is provided with in oily passage and the body of going into that is provided with in the axle center links to each other; Have slotted eye on the inwall of through hole in the body, be provided with the O type ring and the back bracket ring that are used to seal in the slotted eye.

Have two slotted eyes on the inwall of described through hole, two slotted eyes are separately positioned on the two-port place of through hole.

Back bracket ring in slotted eye is positioned over the O type ring outside, and described slotted eye is a U-groove bevel.

The swivel coupling that the utility model provides has following beneficial effect: 1, because unfixing between body and the axle center, so body can be done around the axle center to rotate longitudinally, thereby can allow oil pipe from angle is fuel-displaced arbitrarily, the fuel-displaced direction of oil pipe can be changed, the demand that die clamper moves can be satisfied; 2, can change the crooked radian of oil pipe, the buffering oil pressure increases the tolerance of tubing length, the working life of improving oil pipe to the pressure of oil pipe.

Description of drawings

Fig. 1 is the utility model master TV structure schematic representation.

Description of reference numerals: 1 axle center; 2 bodies; The 2-1 through hole; 3O type ring; 4 back bracket rings; 5 outer buckle rings; 6 go into oily passage; 7 oil discharge passages; 8 slotted eyes.

Embodiment

Below in conjunction with drawings and Examples the utility model is described further.Though the utility model will be described in conjunction with preferred embodiment, should know, do not represent that the utility model is limited among the described embodiment.On the contrary, the utility model will be contained alternative, modified model and the equivalent in the scope of the present utility model that can be included in attached claims qualification.

As shown in Figure 1, the swivel coupling of Jie Shaoing generally is used to turn round the connection of pipeline here, as the oil pipe joining portion, changes the direction of oil pipe, yet should know, the utility model also can be used for other connection that needs swivel gear.Swivel coupling described herein, comprise axle center 1, body 2, O type ring 3, back bracket ring 4 and outer buckle ring 5, axle center 1 a threadless end is inserted among the through hole 2-1 on the body 2, axle center 1 tail end that passes this through hole 2-1 is fixing by outer buckle ring 5, and the oil discharge passage 7 that is provided with in oily passage 6 and the body 2 of going into that is provided with in the axle center 1 links to each other; Have two slotted eyes 8 (U-groove bevel) in the body 2 on the inwall of through hole 2-1, two slotted eyes 8 are separately positioned on the two-port place of through hole 2-1, are provided with the O type ring 3 and the back bracket ring 4 that are used to seal in the slotted eye 8, and O type ring 3 is put in the inboard, and back bracket ring 4 is put in the outside.

During installation,, need simultaneously by O type ring 3 and back bracket ring 4 with the through hole 2-1 of axle center 1 a threadless end by body 2, at last axle center 1 fully by after outer buckle ring 5 is buckled in tail end, prevent that axle center 1 from skidding off, and plays fixation simultaneously.Swivel coupling axle center 1 and body 2 are done by the 45# steel, and carry out zinc-plated processing on the surface.

Working principle: because unfixing between body 2 and the axle center 1, so body 2 can be around the axle center 1 does to rotate longitudinally, thereby can allow oil outlet from angle is fuel-displaced arbitrarily.

Claims

1, a kind of swivel coupling, comprise axle center (1) and body (2), it is characterized in that: axle center (1) threadless end is inserted in the through hole (2-1) on the body (2), axle center (1) tail end that passes this through hole (2-1) is fixing by outer buckle ring (5), and the oil discharge passage (7) that is provided with in oily passage (6) and the body (2) of going into that is provided with in axle center (1) links to each other; Have slotted eye (8) on the inwall of through hole (2-1) in the body (2), be provided with the O type ring (3) and the back bracket ring (4) that are used to seal in the slotted eye (8).

2, swivel coupling according to claim 1 is characterized in that: have two slotted eyes (8) on the inwall of described through hole (2-1), two slotted eyes (8) are separately positioned on the two-port place of through hole (2-1).

3, swivel coupling according to claim 1 and 2 is characterized in that: the back bracket ring (4) in slotted eye (8) is positioned over O type ring (3) outside.

4, swivel coupling according to claim 1 and 2 is characterized in that: described slotted eye (8) is a U-groove bevel.

5, swivel coupling according to claim 3 is characterized in that: described slotted eye (8) is a U-groove bevel.