CN208959125U - A kind of easily demoulding pipeline locked joints - Google Patents

Abstract

The utility model discloses a kind of easily demoulding pipeline locked joints, outer circle taper joint is made of outer circle Taper Pipe and locking ring, inner circle taper joint is made of external screw teeth and inner circle Taper Pipe, internal screw thread and galling hole are equipped on locking ring, it is top equipped with external screw teeth in interior conical tube, inner circle Taper Pipe, which can extend inwardly into, to be covered in outer cone joint cavity on outer conical tube, internal screw thread and the external screw teeth of inner circle Taper Pipe on outer circle Taper Pipe is chimeric mutually, inner circle taper joint is screwed in outer circle taper joint and is fixed together, the outer cone fluid passage of outer circle Taper Pipe is communicated with the female cone fluid passage of inner circle Taper Pipe.The utility model is not in the case where reducing locked joints firmness of the connection, it can make that injection mold size is small, structure is simple, the manufacturing expense of injection mold is saved, the failure rate for reducing injection mold extends the service life of injection mold and reduces the injection molding machine size of adaptation injection mold.

Description

A kind of easily demoulding pipeline locked joints

Technical field

The utility model relates to medical instruments, more particularly, to a kind of easily demoulding pipeline locked joints.

Background technique

The important means that venous transfusion, enteral nutrition are infused as clinical treating disease, because it is directly related to patient's Physical and mental health, people require the safety and effectiveness of infusion pipeline increasingly harsh.

Dismountable pipe joint need to be often arranged in infusion pipeline, and common pipe joint, which only relies on inside and outside two connectors and holds tightly, to be connected It connects, easily disengages, to guarantee that infusion safety, more and more infusion pipelines use locked joints, locked joints are in common pipeline On the basis of connector, thread mechanism is increased between interior coupling.

Compared with common pipe joint, thread mechanism keeps locked joints connection stronger, and use is safer.But due to locking Connector has thread mechanism, and in Injection Mold Design, thread mechanism generates back-off on type core, need to use oil cylinder, gear, chain The device bands ejector half core such as item could be demoulded smoothly along thread rotation, and die size is big, structure is complicated, and injection mold is caused to manufacture Somewhat expensive, service life is short, high failure rate, and need to match bigger injection molding machine.

Summary of the invention

The purpose of this utility model is to provide a kind of easily demoulding pipeline locked joints, needed for the utility model production Injection mold size it is small, long service life, failure rate is low, structure is simple.

Purpose of the utility model is realized as follows:

A kind of easily demoulding pipeline locked joints, including outer circle taper joint and inner circle taper joint, are characterized in: outer circle tapered joint Head is made of outer circle Taper Pipe and locking ring, is equipped with big, the inner cone joint by infusion tube end diameter in the centre of outer cone joint The centre of the outer circle Taper Pipe for holding diameter small, outer circle Taper Pipe is outer cone fluid passage, passes through fixed plate in the periphery of outer conical tube It is fixed with locking ring, is outer cone joint cavity between the outer wall of outer circle Taper Pipe and the inner wall of locking ring, on the inner wall of locking ring Equipped with several inwardly projecting internal screw threads, several perforations are equipped on the side wall of locking ring, between adjacent twice internal screw thread Galling hole, the number of internal screw thread is consistent with the galling number in hole；Inner circle taper joint is made of external screw teeth and inner circle Taper Pipe, inner circle The centre of Taper Pipe be outer cone joint end diameter it is big, by the small female cone fluid passage of extraneous end diameter, leaned in interior conical tube The outer wall of inner end is equipped with several external screw teeths being used cooperatively with internal screw thread；Outer circle Taper Pipe is identical with the taper of inner circle Taper Pipe, And the outer diameter of outer circle Taper Pipe and the internal diameter of inner circle Taper Pipe match, and inner circle Taper Pipe is extended inwardly into outer cone joint cavity It covers on outer conical tube, the outer cone fluid passage of outer circle Taper Pipe is communicated with the female cone fluid passage of inner circle Taper Pipe.

Symmetrical in 180 ° of rotation relationships centered on conical tube other than fraying hole and internal screw thread, external screw teeth is with female cone It is symmetrical in 180 ° of rotation relationships centered on pipe.

2~12 inwardly projecting internal screw threads are equipped on the inner wall of locking ring, on the side wall of locking ring, adjacent twice The galling hole of 2~12 perforations is equipped between internal screw thread.

The drafting angle for fraying hole is 0.5 °~20 °.

The utility model includes outer circle taper joint and inner circle taper joint, and outer circle taper joint is by outer circle Taper Pipe and locking ring group At inner circle taper joint is made of external screw teeth and inner circle Taper Pipe, and internal screw thread and galling hole are equipped on locking ring, is leaned in interior conical tube It is equipped with external screw teeth, inner circle Taper Pipe, which can extend inwardly into, to be covered in outer cone joint cavity on outer conical tube, interior on outer circle Taper Pipe Thread and the external screw teeth of inner circle Taper Pipe are chimeric mutually, and inner circle taper joint is screwed in outer circle taper joint and is fixed together, The outer cone fluid passage of outer circle Taper Pipe is communicated with the female cone fluid passage of inner circle Taper Pipe.The utility model is due in locking ring It is equipped with internal screw thread and galling hole, in Injection Mold Design, outer circle taper joint is close to the galling hole galling in die sinking direction, The back-off that internal screw thread is generated on the interior core of locking ring is eliminated, and the type core of outer circle taper joint, which is not required to rotation, smoothly to be taken off Mould, the lower half portion of the external screw teeth of inner circle taper joint and the shape of inner circle Taper Pipe are carved in the inner circle Taper Pipe of die sinking direction movement On type core, the top half of external screw teeth and other position shapes of inner circle taper joint are carved in the inner circle Taper Pipe that die sinking direction moves Type chamber on, no back-off, thus can also smoothly demould.The draft direction for fraying hole is that injection mold is opened direction, frays hole Drafting angle is 0.5 °~20 °.The back-off face of internal screw thread side wall is corresponding with galling hole, is buckled to the shape in face and the shape in galling hole Shape can be carved in the type chamber of the die sinking direction movement of mold, on type core, so that the interior core of locking ring does not have to along internal screw thread Rotation can be demoulded smoothly.

Therefore, the utility model can make injection mold size in the case where not reducing locked joints firmness of the connection It is small, structure is simple, has saved the manufacturing expense of injection mold, reduce the failure rate of injection mold, extend injection mold Service life and the injection molding machine size for reducing adaptation injection mold.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the lateral half sectional view of outer circle taper joint；

Fig. 3 is the positive half sectional view of outer circle taper joint；

Fig. 4 is 1/4 cross-sectional view of outer circle taper joint；

Fig. 5 is the structural schematic diagram of inner circle taper joint；

Fig. 6 is the cross-sectional view of inner circle taper joint.

Specific embodiment

Below with reference to embodiment and compares attached drawing the utility model is described in further detail.

A kind of easily demoulding pipeline locked joints, including outer circle taper joint 1 and inner circle taper joint 2, outer circle taper joint 1 by Outer circle Taper Pipe 11 and locking ring 12 form, and in the centre of outer cone joint 1, equipped with leaning on, 3 end diameter of perfusion tube is big, connects by female cone The centre of the small outer circle Taper Pipe 11 of first 2 end diameter, outer circle Taper Pipe 11 is outer cone fluid passage 16, in the periphery of outer conical tube 11 It is fixed with locking ring 12 by fixed plate 15, is outer cone joint cavity between the outer wall of outer circle Taper Pipe 11 and the inner wall of locking ring 12 17,8 inwardly projecting internal screw threads 14 are equipped on the inner wall of locking ring 12, on the side wall of locking ring 12, in adjacent twice The galling hole 13 of 8 perforations is equipped between thread 14；Inner circle taper joint 2 is made of external screw teeth 22 and inner circle Taper Pipe 21, female cone The centre of pipe 21 be outer 1 end diameter of cone joint it is big, by the small female cone fluid passage 23 of extraneous end diameter, in interior conical tube The outer wall of 21 inner ends is equipped with 2 external screw teeths 22 being used cooperatively with internal screw thread 14；Outer circle Taper Pipe 11 and inner circle Taper Pipe 21 Taper is identical, and the internal diameter of the outer diameter of outer circle Taper Pipe 11 and inner circle Taper Pipe 21 matches, and inner circle Taper Pipe 21 is extended inwardly into It is covered into outer cone joint cavity 17 on outer conical tube 11, outer cone fluid passage 16 and the inner circle Taper Pipe 21 of outer circle Taper Pipe 11 Female cone fluid passage 23 communicates.

It is symmetrical in 180 ° of rotation relationships centered on conical tube 11 other than fraying hole 13 and internal screw thread 14, external screw teeth 22 Within it is symmetrical in 180 ° of rotation relationships centered on conical tube 21.

2~12 inwardly projecting internal screw threads 14 are equipped on the inner wall of locking ring 12, on the side wall of locking ring 12, phase The galling hole 13 of 2~12 perforations is equipped between adjacent twice internal screw thread 14.

The drafting angle α for fraying hole 13 is 0.5 °~20 °.

For outer circle taper joint 1 in Injection Mold Design, the shape of outer circle Taper Pipe 11 and internal screw thread 14 is carved in locking ring 12 Interior core on, die sinking direction movement type chamber, type core be inserted through galling hole 13 and 12 interior core of locking ring fray, internal screw thread 141 shape of back-off face on 14 side walls is carved in the type chamber of die sinking direction movement, on type core, so that 12 interior core of locking ring is not It can smoothly be demoulded with along the rotation of internal screw thread 14.

For inner circle taper joint 2 in Injection Mold Design, external screw teeth lower half portion 221 and 21 shape of conical bore are carved in die sinking On the type core of direction movement, external screw teeth top half 222 and other position shapes of inner circle taper joint 2 are carved in the movement of die sinking direction Type chamber on, no back-off can be demoulded smoothly.

When outer circle taper joint 1 is connect with inner circle taper joint 2, a hand-held outer circle taper joint 1, the other hand pinches inner circle tapered joint First 2, after conical bore 21 is directed at conical tube 11, rotating internal taper joint 2, until external screw teeth 22 is difficult to revolve after screwing with internal screw thread 14 Until dynamic, conical tube 11 has been inserted into conical bore 21 and circular conical surface gluing, sealing, liquid A channel 16 and liquid B channel 23 at this time Connection.

Claims (4)

1. a kind of easily demoulding pipeline locked joints, including outer circle taper joint and inner circle taper joint, it is characterised in that: outer cone Connector is made of outer circle Taper Pipe and locking ring, is equipped with by infusion tube end diameter greatly, connect by female cone in the centre of outer cone joint The centre of the small outer circle Taper Pipe of head end diameter, outer circle Taper Pipe is outer cone fluid passage, passes through fixation in the periphery of outer conical tube Plate is fixed with locking ring, is outer cone joint cavity between the outer wall of outer circle Taper Pipe and the inner wall of locking ring, in the inner wall of locking ring Several inwardly projecting internal screw threads are equipped with, are passed through on the side wall of locking ring, between adjacent twice internal screw thread equipped with several The number in logical galling hole, internal screw thread is consistent with the galling number in hole；Inner circle taper joint is made of external screw teeth and inner circle Taper Pipe, interior The centre of conical tube be outer cone joint end diameter it is big, by the small female cone fluid passage of extraneous end diameter, in interior conical tube The outer wall of inner end is equipped with several external screw teeths being used cooperatively with internal screw thread；The taper phase of outer circle Taper Pipe and inner circle Taper Pipe Together, and the internal diameter of the outer diameter of outer circle Taper Pipe and inner circle Taper Pipe matches, and inner circle Taper Pipe is enabled to extend inwardly into outer circle taper joint It is covered in chamber on outer conical tube, the outer cone fluid passage of outer circle Taper Pipe is communicated with the female cone fluid passage of inner circle Taper Pipe.

2. easily demoulding pipeline locked joints according to claim 1, it is characterised in that: galling hole and internal screw thread with It is symmetrical in 180 ° of rotation relationships centered on outer circle Taper Pipe, it is symmetrical in 180 ° of rotation relationships centered on conical tube within external screw teeth Distribution.

3. easily demoulding pipeline locked joints according to claim 1, it is characterised in that: set on the inner wall of locking ring There are 2~12 inwardly projecting internal screw threads, 2~12 perforations are equipped on the side wall of locking ring, between adjacent twice internal screw thread Galling hole.

4. easily demoulding pipeline locked joints according to claim 3, it is characterised in that: the drafting angle for fraying hole is 0.5 °~20 °.