CN202176846U

CN202176846U - Connector

Info

Publication number: CN202176846U
Application number: CN2011202398104U
Authority: CN
Inventors: 洪跃定
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-08
Filing date: 2011-07-08
Publication date: 2012-03-28
Anticipated expiration: 2021-07-08

Abstract

The utility model discloses a connector, which belongs to the technical field of pipe connection and comprises an inserting assembly and a connection piece. The inserting assembly is provided with a through hole in the axial direction, the through hole is divided into three sections, the section of the left section of the through hole is round, the curvature of at least one part of the section of the middle section of the through hole changes, and the right section of the through hole is conical. A groove communicated with the through hole is arranged at the right end of the inserting assembly, and the left section and the right section of the through hole are coaxial. A first cylinder is arranged in the middle of the connection piece, second cylinders are arranged on the two end faces of the first cylinder, and an expansion portion in the shape of a rotation body is respectively arranged on the end face of each second cylinder. The diameter of at least one part of the right end of the through hole is smaller than that of the section of the contact position of the expansion portion and the through hole before assembly. The expansion portion and the first cylinder are coaxial, the axes of the second cylinders deviates from the axis of the first cylinder, the first cylinder is matched with the left section of the through hole, the second cylinders are matched with the middle section of the through hole, and the expansion portion is matched with the right section of the through hole.

Description

Connecting head

Technical field

The utility model belongs to pipe fitting interconnection technique field, especially relates to a kind of connecting head of connection pipe fitting.

Background technique

The method that connects between the general pipe fitting has three kinds, and a kind of is that the pipe fitting that directly two needs is linked to each other welds together, and welds cumbersome; Waste time and energy; The energy that needs labor just can not be dismantled in case connect, and can not be used for the connection between the plastic pipe.

Second kind is to realize the interconnection between the pipe fitting through threaded connecting head, all is provided with screw thread on the two ends of connecting head, and corresponding then pipe fitting is fixed on the two ends of connecting head through being spirally connected, just accomplished the interconnection of pipe fitting.This mode must be processed with screw thread and can realize interconnection on the end of pipe fitting, and is spirally connected and fixing also relatively expends time in.

The third is to realize the interconnection between the pipe fitting through the connecting head of band attachment hole; Pipe fitting is plugged on the interconnection that realizes in the attachment hole between the pipe fitting; This mode, connect fairly simple, but to the required precision of attachment hole than higher; If precision is not enough, or can causes pipe fitting to connect the pine pipe fitting and can't insert in the attachment hole at all.

Summary of the invention

The utility model provides a kind of connecting head to deficiency of the prior art, and is easy to connect and precision do not had very high requirement.

For solving the problems of the technologies described above, the utility model is able to solve through following technical proposals: connecting head comprises connecting element and link; Said connecting element is provided with through hole vertically; Said through hole is divided into two sections at least, and the section cross section, a left side of said through hole is circular, and the right section of said through hole has at least the curvature in a part of cross section to change; The end of said connecting element has the slit; The centre of said link is first cylinder, and the both ends of the surface of said first cylinder are provided with second cylinder, and the axis of said second cylinder departs from the axis of said first cylinder mutually; Said first cylinder matches with the left side section of said through hole, and said second cylinder matches with the right section of said through hole.During use, earlier connecting element is inserted in the pipe fitting that will connect, in the through hole with the insertion connecting element of link; Rotating connector then, second cylinder of link be owing to depart from the axis of first cylinder mutually, during said rotation; Second cylinder changes with respect to the radial position of first cylinder in through hole, and when turning to certain position, second cylinder pushes against the right section of through hole; Be rotated further again; Slit on the connecting element end face is strutted, and the right-hand member of connecting element is by spreading, and the inwall that holds out against pipe fitting is realized connecting.The other end also can use the same method pipe fitting is connected on the utility model, so just realized the connection between two pipe fittings.Connecting element through spreading realize with pipe fitting between be connected, the diameter of connecting element has certain excursion, so that the precision of connecting element is not requirement is very high.And need take apart when connecting, only need be with the link counterrotating, second cylinder just can separate with through-hole wall, and the connecting element reinstatement just can be pulled down pipe fitting.

In the technique scheme, concrete, said slit is a groove.

In the technique scheme, concrete, the front end of said second cylinder is the portion of holding out against, and the said portion that holds out against is fixed on said first cylinder through attachment post, and the diameter of said attachment post is smaller or equal to the diameter of the portion of holding out against.

A kind of structure of connecting element does in addition; Said connecting element is made up of two-part at least, and the gap between the each several part junction plane is the slit, and the junction plane of each several part and the axis of said connecting element parallel; Each part is provided with groove, and each groove combination becomes said through hole.

The beneficial effect of the utility model is: connecting element through spreading realize with pipe fitting between be connected, the diameter of connecting element has certain excursion, so that the precision of connecting element is not requirement is very high.And need take apart when connecting, only need be with the link counterrotating, second cylinder just can separate with through-hole wall, and the connecting element reinstatement just can be pulled down pipe fitting, dismantles also very convenient.

Description of drawings

Fig. 1 is first embodiment's of the utility model a schematic perspective view.

Fig. 2 is first embodiment's of the utility model a sectional view.

Fig. 3 is the schematic representation of connecting element among first embodiment of the utility model.

Fig. 4 is the sectional view of Fig. 3 along A-A.

Fig. 5 is the schematic representation of connecting element among second embodiment of the utility model.

Fig. 6 is the sectional view of Fig. 5 along B-B.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Embodiment 1, referring to Fig. 1 to Fig. 3, and connecting head; Comprise connecting element 1 and link 2, said connecting element 1 is provided with through hole 12 vertically, and said through hole 1 is divided into two sections at least; The section cross section, a left side of said through hole 12 is circular, and referring to Fig. 4, the hole wall cross section of through hole 12 right sections is a spiral of Archimedes.The end of connecting element 1 has three grooves 11; Article three, groove 11 evenly distributes; The centre of link 2 is that the both ends of the surface of first cylinder, 21, the first cylinders 21 are provided with the axis of second cylinder, 22,23, the

second cylinders

22,23 and the axis of first cylinder 21 departs from mutually; First cylinder 21 matches with the left side section of through hole 12, and

second cylinder

22,23 matches with the right section of through hole 12.The front end of

second cylinder

22,23 is the portion of holding out against 221,231, holds out against portion 221,231 and is fixed on first cylinder 21 through attachment post 222,232, and the diameter of attachment post 222,232 is smaller or equal to the diameter of the portion of holding out against 221,231.

Embodiment 2; Referring to Fig. 5; Connecting element 1 is made up of two-part 1a, 1b, and the gap 11 ' between two-part 1a, the 1b junction plane is the slit, and the axis of the junction plane of two-part 1a, 1b and connecting element 1 parallels; Two part 1a, last groove 12a, the 12b of forming of 1b,

groove

12a, 12b are combined into through hole 12.

Referring to Fig. 6, the hole wall cross section of through hole (12) left side section is oval, and all the other are with embodiment 1.

Claims

1. connecting head; It is characterized in that: comprise connecting element (1) and link (2), said connecting element (1) is provided with through hole (12) vertically, and said through hole (1) is divided into two sections at least; The section cross section, a left side of said through hole (12) is circular; The right section of said through hole (12) has at least the curvature in a part of cross section to change, and the end of said connecting element (1) has the slit, and the centre of said link (2) is first cylinder (21); Said first cylinder (21) both ends of the surface be provided with second cylinder (22,23); The axis of said second cylinder (22,23) departs from the axis of said first cylinder (21) mutually, and said first cylinder (21) matches with the left side section of said through hole (12), and said second cylinder (22,23) matches with the right section of said through hole (12).

2. connecting head according to claim 1 is characterized in that: said slit is groove (11).

3. connecting head according to claim 2; It is characterized in that: the front end of said second cylinder (22,23) is the portion of holding out against (221,231); The said portion (221,231) that holds out against is fixed on said first cylinder (21) through attachment post (222,232), and the diameter of said attachment post (222,232) is smaller or equal to the diameter of the portion of holding out against (221,231).

4. connecting head according to claim 1; It is characterized in that: said connecting element (1) is made up of two-part (1a, 1b) at least; Gap (11 ') between each several part (1a, the 1b) junction plane is the slit; The junction plane of each several part (1a, 1b) and the axis of said connecting element (1) parallel, and each part (1a, 1b) is provided with groove (12a, 12b), and each groove (12a, 12b) is combined into said through hole (12).

5. connecting head according to claim 3 is characterized in that: the hole wall cross section of the right section of said through hole (12) is a spiral of Archimedes.

6. connecting head according to claim 3 is characterized in that: the hole wall cross section of said through hole (12) left side section is for oval.