CN2207505Y

CN2207505Y - Jaw-type fast pipe union

Info

Publication number: CN2207505Y
Application number: CN 94231298
Authority: CN
Inventors: 高大路
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-29
Filing date: 1994-12-29
Publication date: 1995-09-13
Anticipated expiration: 2004-12-29

Abstract

The utility model relates to a jaw-type fast pipe union which comprises a pipe joint body. A hook-shaped jaw hinged on the looping of the interface end of a pipe body is utilized. The hook-shaped jaw can be acted by the movement of a rotating cam, causing the hook-shaped jaw to generate radial and axial locking force to be connected with a lap joint member and to be self locked. The utility model has the advantages of simple structure and convenient operation, can be suitable for fast connection of delivery pipe fittings of vehicles, ships, container, devices, etc., and is particularly suitable for fast connection of the pipe fittings with non fast interfaces.

Description

Jaw-type fast pipe union

The utility model relates to a kind of quick type pipe joint, is a kind of jaw type quick coupling that is used for all kinds of transfer line overlap joints specifically.Usually pipe joint is used for connecting vehicle, boats and ships, and all kinds of containers, the pipeline of various device and device is carried different medium.For the form that connects between the pipeline of working site, whether easy to operate, quick, raising work efficiency tool has very important significance.

At present, the structural type of employed quick coupling has inner groove, cam etc. in technique known, uses in groups often, is divided into first pipe fitting and second pipe fitting.For example, the quick coupling of fire-fighting water tengential belt.Unique deficiency is that requirement is complete at the necessary pipe fitting of use occasion (scene), can supportingly use, and this just brings very big restriction.Particularly to the interface of non-quick pipe fitting, and the occasion of quick requirement is arranged, just seeming is difficult to satisfy.

The purpose of this utility model, provide a kind of jaw type quick coupling, utilize the clamping form of lever, directly be overlapped on the different surfaces of non-quick pipe fitting, and be not subjected to be overlapped structural type (flange, screw thread or the plain tube) restriction of pipe fitting interface, by the size of self can regulate clamping power and coupling mechanism force, reach the purpose of quick connection.

For achieving the above object, technical solution of the present utility model is achieved like this: the running-on with the interface end setting that utilizes its pipe junctor, and on have the symmetry the hinge frame, by the hinged hook-type pawl of hinge, act on the lever end of hook-type pawl by the rotating cam working curved surface on the pipe junctor, make its hook-type pawl claw end keep connecting self-locking, form the jaw type lock-on connection.

The utlity model has following advantage:

1, applied range.Can be widely used in automobile, train, boats and ships, all kinds of container, the quick of transfer line of pressing or not having piezodielectric that have of various device and device is connected.

2, have the restriction that is not subjected to be overlapped the pipe fitting interface structure, as threaded end (TE), the flange mouth of pipe, band seam or the variable cross section mouth of pipe etc. of transition arc is arranged.

3, adopt jaw type hook locking mechanism, use easy to operately, finish locking, self-locking, reset by the handle rotating cam.And sharp running-on directly contains by the overlap joint mouth of pipe, and centering accurately.Clamping force and coupling mechanism force can be regulated arbitrarily by cam working face, and does not leak the assurance joint.

4, have reasonable in design, can realize auto-lock function by working surfaces such as cam convex-concaves, in light weight, cost is low.

Description of drawings:

Fig. 1 is a jaw type quick coupling topology view.

Fig. 2,3,4 is a hook-type pawl embodiment view.

Fig. 5,6,7 is a rotating cam limiting structure embodiment view.

Fig. 8 is the structural drawing of hinge stent hub.

Embodiment is further described the utility model in conjunction with the accompanying drawings:

See Fig. 1, show the overall structure of quick coupling.Utilization is provided with a running-on 1 in the interface end of pipe junctor 6, and running-on 1 can junctor 6 be made for integral body or two bodies are integrally welded with managing, and is used to control together by the location of bridge piece.And on the cylindrical end face of running-on 1 symmetrically arranged hinge stent 3, by the hook-type pawl 2 of hinge 4 hinged lever structures, make the hook-type pawl 2 can be along hinge 4 swing.Various for adapting to by the structural type of bridge piece interface tube (flange, screw thread, plain tube or the band transition arc cross section mouth of pipe), can utilize claw end that hinged single head hock (12), double end hock (22) or radially hinged arc hock (32) are set vertically, see Fig. 2,3,4 at hook-type pawl 2.The rotating cam 5 of band handle 9 is installed on the pipe junctor 6, rotating cam 5 can be rotated along managing on the junctor 6, rotation angle is about 120 °.Rotate recessed 5 the axial displacement of taking turns for limiting, and be respectively equipped with position limit cycle 7 in its both sides and make rotating cam 5 symmetrical convex-concave working curved surfaces or smooth surface lever end corresponding to hook-type pawl 2, by jackscrew 8 and 6 lockings of pipe junctor, when guaranteeing that rotating cam 5 changes and hook-type pawl 2 lever end contact matching preferably.

When the overlap joint state, will be inserted in the running-on 1 by the overlap joint pipe fitting, move handle 9 along clockwise rotating, make rotating cam 5 change lift gradually, two hook-type pawls are directly acted on the pipe fitting that is overlapped, and the lever end of hook-type pawl 2 is in roulette wheel 5 work concave curved surface positions simultaneously, realizes mechanism's self-locking.Otherwise,, hook-type pawl 2 resetted and throw off by rotating counterclockwise rotating cam 5.

Fig. 5,6,7 shows several embodiments of restriction rotating cam 5 axial displacements respectively.Utilization connects at rotating cam 5 one sides and pipe between the shoulder of running-on 1 stop collar 10 is set, or utilizes and the annular groove that has on jackscrew 18 and the pipe junctor 6 is housed on rotating cam 5 bodies directly cooperates; Also can utilize rotating cam 5 internal diameter two ends Jiao Chu to have the arc deep gouge and manage the interior jump ring that is provided with 11 of two corresponding on the junctor 6 annular grooves to cooperate, realize qualification axial displacement.

See that Fig. 8 shows another example structure that hinge stent is connected with running-on.Hinge stent hub 13 and pipe socket 1 are made the branch body structure.Make it to divide on hinge stent hub 13 and the pipe socket 1 to be threaded, make two bodies by being threaded, in order to adjust by bridge piece and pipe joint answer coupling mechanism force in advance, guarantee the sealing of two pipe fittings, prevent leakage.

Claims

1, a kind of jaw type quick coupling, comprise that the pipe junctor constitutes, it is characterized in that utilizing on the running-on (1) of pipe junctor (6) interface end setting, the hinge stent (3) that has symmetry, by the hinged hook-type pawl of hinge (4) (2),, act on the lever end of hook-type pawl (2) by the work of the rotating cam (5) on the pipe junctor (6) concave and convex surface, make hook-type pawl (2) claw end keep connecting self-locking, form the jaw type lock-on connection.

2, by the described a kind of jaw type quick coupling of claim 1, it is characterized in that the claw end of hook-type pawl (2) also has movable hock.

3, by the described a kind of jaw type quick coupling of claim 2, it is characterized in that the movable hock that hook-type pawl (2) claw end is provided with, can hinged vertically monodentate pawl (12) or double end hock (22), also can radially hinged arc hock (32).

4, by the described a kind of jaw type quick coupling of claim 1, it is characterized in that rotating cam (5) is spacing with cooperating of pipe junctor (6), adopt the positioning ring (7) of distribution both sides, by the displacement of jackscrew (8) locking restrictive axial.

5, by the described a kind of jaw type quick coupling of claim 4, it is characterized in that the shoulder that utilizes cam-rotating (5) one side respective tube to connect running-on (1) can limit axial displacement by stop collar (10).

6,, it is characterized in that directly to utilize the jackscrew (18) that has on rotating cam (5) body to cooperate qualification axial displacement with annular groove on the pipe junctor (6) by the described a kind of 4 formula quick couplings of claim 5.

7,, it is characterized in that rotating cam (5) internal diameter two ends Jiao Chu is provided with jump ring (11) restrictive axial displacement in having the arc deep gouge and pipe junctor (6) being gone up two corresponding annular grooves by the described a kind of worker's quick coupling of claim 6.

8, by the described a kind of worker's quick coupling of claim 1, it is characterized in that the symmetrical working surface on the rotating cam (5) is concave and convex surface, in order to the self-locking of control with hook-type pawl (2) lever end, or working surface also can be smooth surface.

9,, it is characterized in that the mouth of pipe (1) and pipe junctor (6) can be made into integral body or two bodies are integrally welded by the described a kind of jaw type quick coupling of claim 1.

10,, it is characterized in that hinge stent hub (13) and running-on (1) are the branch body structure by the described a kind of jaw type quick coupling of claim 1.Respectively by being threaded of having, answered coupling mechanism force in advance by bridge piece and pipe joint in order to adjust.