CN2679408Y

CN2679408Y - Tube connecting piece

Info

Publication number: CN2679408Y
Application number: CN 200420042828
Authority: CN
Inventors: 吴村木
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-24
Filing date: 2004-02-24
Publication date: 2005-02-16
Anticipated expiration: 2014-02-24

Abstract

The utility model relates to the technical field of hardware connecting piece in particular to a connecting piece able to be used to mutually connect the tube bodies. The utility model has the technical proposal that the utility model is composed of an external member and a connecting piece. The external member is equipped with a circular through hole, and the connecting piece is able to plug into the external member the inner wall of which at least a boss is arranged. The circumferential surface of the connecting piece is equipped with a flute which is corresponding to the boss. The connecting piece plugs into the external member and the boss falls itself into the flute. The external member and the connecting piece are respectively fixed on the port of the tube body needing connecting when the utility model is used. The utility model is simple structure by fixing and the tube bodies together by the flute and the boss. The utility model is assembled and disassembled very conveniently. The connecting piece is applicable to the tube bodies in various model numbers.

Description

A kind of Pipe connecting fitting

Technical field:

The utility model relates to the hardware-joint technical field, refers in particular to a kind of interconnective link between the body that can be used for.

Background technique:

In producing and living, there are many products to adopt bodys to be connected to form support at present, this just need connect into body needed length, and this Placement should guarantee that assembly and disassembly are convenient.Currently used mode is as follows: see accompanying drawing 1,2, it is that the inwall of

body

51,52 jointings that connect at needs is provided with internal thread, connects by threaded pipe 53 then.The shortcoming that this structure exists is exactly internal thread to be set at the inwall of

body

51,52, and this screw thread setting requires

body

51,52 must possess certain thickness, and contrast thin-walled body just can't be implemented in the inboard wall of tube body machining screw.For this situation, many people also consider, and design some solutions.For example the patent No. is: just disclose in 88206057.9 the Chinese patent file a kind of " bindiny mechanism of thin-wall stainless steel and joint ", it is by the chevron projection that is formed at pipe end, there is externally threaded joint at the two ends that are enclosed within on the pipe, and the female nuts and washers of an end and the dish spring that are enclosed within on the pipe are formed.An inclined-plane of the taper chamfering applying chevron of nut the inner when tightening, another inclined-plane of chevron holds out against the end face of joint by packing ring, represent to tighten when the nut inner thread end is compacted fully by folded spring and finish, this moment, the end face of joint also contacted with the nut interior edge face, and the portion of pulling out of moving back of joint also fits with another bottom, inclined-plane of chevron.Make in conjunction with firm.Though this structure has realized the connection of thin-walled body, also there is certain problem in it, that is, its connected element that adopts is arranged on body outside, and its outstanding and body surface are not attractive in appearance in appearance, and some the time also give when using and make troubles.

Summary of the invention:

The purpose of this utility model is intended to overcome the deficiency of the said goods, provide a kind of simple in structure, be connected firmly the assembling and the Pipe connecting fitting of convenient disassembly.

The utility model is achieved by the following technical solution: it comprises that one offers the external member and the plug connector that can be inserted in the external member of manhole, and the inwall of this external member convexes with at least one lug boss; Offer the groove corresponding with lug boss on the circumferential surface of plug connector, plug connector is inserted in the external member, and lug boss falls in the groove of correspondence with it.

Described groove is provided with a kink at least.

The tail end of above-mentioned lug boss and groove kink forms interference fit.

When using the utility model, external member and plug connector are separately fixed at the port that needs the body that be connected, by lug boss and groove body are fixed together, it is simple in structure, and assemble and dismantle very convenient, in the body of applicable various different models.

Description of drawings:

Fig. 1 is the structural representation of existing product;

Fig. 2 is the structural representation of existing product;

Fig. 3 is the utility model embodiment's a stereogram;

Fig. 4 is the plan view of the utility model embodiment external member;

Fig. 5 is the worm's eye view of the utility model embodiment external member;

Fig. 6 is the plan view of the utility model embodiment plug connector;

Fig. 7 is the plan view of the utility model embodiment plug connector;

Fig. 8 is an A-A sectional view among Fig. 7;

Fig. 9 is the utility model usage mode schematic representation.

Embodiment:

The following stated only is a specific embodiment of the present utility model, does not therefore limit protection domain of the present utility model.

See Fig. 3～7, the utility model comprises two parts: an external member 1 and that offers manhole can be inserted in the plug connector 2 in the external member 1, and the inwall of this external member 1 convexes with at least one lug boss 11; Offer the groove 21 corresponding on the circumferential surface of plug connector 2 with lug boss 11.

Above-mentioned groove 21 is provided with a kink 22 at least, with the situation that can not occur coming off after guaranteeing external member 1 and plug connector 2 being connected.The groove 21 that the utility model embodiment one is offered comprises a line part 23 and a kink 22, and the angle that is about 90 degree (also can be 90 degree) between this line part 23 and the kink 22.After plug connector 2 inserted external member 1, the lug boss 11 on the external member 1 will be at first along the line part slippage of groove 21, falls in the kink 22 by the rotation between external member 1 and the plug connector 2 at last, by just being difficult to come off between this structure external member 1 and the plug connector 2.In addition, for the convenience that guarantees to assemble, and the assembling back connects closely, the situation that can occur becoming flexible not, be Spielpassung between the line part 23 of groove 21 and the lug boss 11, cooperation between the two is tight gradually then, and to the tail end of kink 22, this lug boss 11 forms interference fit with groove 21.Not only make assembling convenient like this, also guaranteed to cooperate between external member 1 and the plug connector 2 tight, axial play can not occur.See Fig. 8, for stablizing of further strengthening being connected between external member 1 and the plug connector 2, the end of kink 22 forms the darker recess 221 corresponding with lug boss 11, like this after lug boss 11 falls into 221 ones of this recesses, recess 221 forms a kind of inlay card relation with lug boss 11, avoids lug boss 11 to break away from groove 21.

Certainly, the utility model is not restricted to said structure, and it is correct as required, for example, lug boss 11 and with it the quantity of corresponding recess 221 can be one, more than two or three.For the shape of groove, it also can be other shapes.

See Fig. 9, in the time of will using the utility model, at first external member 1 and plug connector 2 are separately fixed at the port of the body 3,4 that need be connected, the body 4 that will be fixed with plug connector 2 then inserts another and is fixed with in the body 3 of external member 1, by cooperating between lug boss 11 and the groove 21 body 3,4 being fixed together.When needing dismounting, only body 3,4 need rotate relatively, make the kink 22 in the lug boss 11 disengaging grooves 21, extract then and get final product.

In sum, the utility model is simple in structure, and the assembling and dismantle very convenient.In the body of applicable various different models.

Claims

1, a kind of Pipe connecting fitting comprises: an external member (1) and that offers manhole can be inserted in the plug connector (2) in the external member (1), and it is characterized in that: the inwall of this external member (1) convexes with at least one lug boss (11); Offer the groove (21) corresponding on the circumferential surface of plug connector (2) with described lug boss (11); Plug connector (2) is inserted in the external member (1), and lug boss (11) falls into it in the groove of correspondence (21).

2, a kind of Pipe connecting fitting according to claim 1 is characterized in that: described groove (21) is provided with a kink (22) at least.

3, a kind of Pipe connecting fitting according to claim 2 is characterized in that: described lug boss (11) forms interference fit with the tail end of groove (21) kink (22).