CN201155646Y

CN201155646Y - Thin-wall metal pipe adapter with axial compensation

Info

Publication number: CN201155646Y
Application number: CNU200820043868XU
Authority: CN
Inventors: 简国良
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-02-03
Filing date: 2008-02-03
Publication date: 2008-11-26
Anticipated expiration: 2018-02-03

Abstract

The utility model discloses a thin-walled metal tube joint which has axial compensation and is sleeved on a metal tube head. The thin-walled metal tube joint comprises a housing, a locking mechanism and a locating ring which are arranged in the housing, and is characterized in that a cavity in which the metal tube head can be accommodated and moved is arranged in the locating ring, the end of the locating ring is provided with a compression silica ring group, the locking mechanism is arranged at the periphery of the compression silica ring group, and the compression silica ring group is encapsulated and fixed between the housing and the metal tube by the locking mechanism. The thin-walled metal tube joint of the utility model is suitable for a metal fluid tube joint with a lug boss, a flaring, a flanging and a groove, in particular to being applied to the connection of a low-pressure thin-walled metal fluid tube, thus being capable of producing certain axial compensation on the expansion deformation of the pipe caused by temperature difference, having simple structure, convenient installation, low cost, and being provided with good popularization value.

Description

Tape spool is to the thin-wall metal pipe joint of compensation

Technical field

The utility model relates to the metallic pipe coupling technical field, more particularly relates to a kind of jointing that is applied in the thin-wall metal fluid hose.

Background technique

At present, metallic conduit is because the intensity height is widely used in the conveying of water, oil, gas, for low pressure pipeline, can select for use thin metallic tubd with economical with materials under the condition of working pressure satisfying, and owing to tube wall has approached, welding is difficulty relatively, needs the high welder of welding technique just can finish, and is unfavorable for applying of thin metallic tubd.The connection of thin metallic tubd, the optional pipe that is used in is gone up the roll extrusion thread or is connected with joint, as depicted in figs. 1 and 2, connect with joint normally on body, press groove, expand boss 1-1, bell mouth expanding 1-2, block groove, boss, horn mouth and connect, connect all is that rigidity connects, when temperature variation, all can cause the dilatation of duct length, when hanging down as temperature, joint can be evened up boss, horn mouth, makes joint ineffective.In order to solve the problem of metal tube dilatation, can with piping layout the pipeline of L, Z, U type, still, when running into the pipeline that can not be arranged as L, Z, U type, just need install expansion joint additional, so just need add the cost of large pipeline.

Summary of the invention

The purpose of this utility model is exactly provide for the deficiency that solves prior art a kind of not only simple in structure, easy for installation, applied widely, and can effectively solve the thin-wall metal pipe joint of the tape spool of the problem that temperature variation impacts pipeline to compensation.

The utility model is to adopt following technical solution to realize above-mentioned purpose: a kind of tape spool is to the thin-wall metal pipe joint of compensation, be socketed on the metal tube head, comprise shell and inner locking mechanism, positioning ring thereof, it is characterized in that: be provided with in the described positioning ring and can hold the cavity that the metal tube head moves, the end of positioning ring is provided with compact silicon cushion rubber group, and locking mechanism is arranged on the peripheral of compact silicon cushion rubber group and its encapsulation is fixed between shell and the metal tube.

As further specifying of such scheme, the end of described metal tube head is provided with boss, and the inner chamber of positioning ring contains the inner conical surface that matches with this boss.

The end of described metal tube head is provided with horn mouth, and the inner chamber of positioning ring contains the inner conical surface that matches with this horn mouth.

The end of described metal tube head is provided with flange, and the inner chamber of positioning ring contains the step surface that matches with this flange.

The end of described metal tube head is provided with groove, and interlocking has the opening annulus on the groove.

Described compact silicon cushion rubber group is made up of two or more silica gel circles.

Described locking mechanism adopts the threaded Placement to be connected with shell, and the end of shell is provided with solenoid coil, and compact silicon cushion rubber group is socketed between pipe screw and the positioning ring.

Also be provided with the precompression mechanism that constitutes by spring and packing ring between described pipe screw and the compact silicon cushion rubber group.

Described locking mechanism adopts the clamp-press type Placement to be connected with shell, and the end of shell is connected with band boss short tube, compact silicon cushion rubber group between short tube and positioning ring, the bayonet socket of the boss clamping of setting and short tube on the shell.

Described positioning ring, shell and locking mechanism are aluminum alloy or stainless steel material.

The beneficial effect that the utility model adopts above-mentioned technical solution to reach is:

1, the utility model adopts a kind of soft connector; be provided with in the positioning ring and can hold the cavity that the metal tube head moves; the end of positioning ring is provided with compact silicon cushion rubber group, and when temperature was low, pipeline shortened; metal tube head drive positioning ring compresses silica gel circle group and moves to the locking mechanism direction; not needing pipe line arrangement is L, Z, and the pipeline of U type is to solve the dilatation that is caused by the temperature difference; saved material, pipeline has been had protective action.

2, easy for installation, tool using is simple, only needs one pipe cutter, and two wrench, and a pair of tongs just can carry out piping erection, does not need the skilled worker personnel and does not need to carry out the mounting technique training, and the ordinary people can install; Because the sealing mechanism of this joint constitutes sealing together by positioning ring, silica gel circle group, shell, locking mechanism and orifice configuration is irrelevant, and is not high to enlarging circularity and required precision, the pipeline reduction also is easy in addition, takes pliers that the mouth of pipe is equalized just.

3, owing to adopt aluminum alloy, stainless steel material makes the life-span of joint long, and anti-oxidation and antisepsis erosion ability is strong.

4, this joint can solve the problem that existing thin-wall metal pipe joint exists, and has reduced cost of production greatly, helps promoting.

Description of drawings

Fig. 1 is this known protruding strange pipe joint structure schematic representation;

Fig. 2 is this known flared fitting structural representation;

Fig. 3 is the utility model bayonet coupling structural representation;

Fig. 4 is the utility model boss bayonet coupling structural representation;

Fig. 5 is the utility model thread joint structure schematic representation;

Fig. 6 is the utility model groove thread joint structure schematic representation;

Fig. 7 is the utility model flange thread joint structure schematic representation.

Description of reference numerals: 1, metal tube head 1-1, boss 1-2, horn mouth 1-3, flange 2, shell 3, locking mechanism 4, positioning ring 5, compact silicon cushion rubber group 6, short tube 7, inner conical surface 8, step surface 9, pipe screw 10, spring 11, packing ring 12, groove 13, opening annulus

Embodiment

Embodiment 1

As shown in Figure 3, Figure 4, the utility model tape spool is to the thin-wall metal pipe joint of compensation, be socketed on the metal tube head 1, comprise shell 2 and inner locking mechanism 3, positioning ring 4 thereof, be provided with in the positioning ring 4 and can hold the cavity that metal tube head 1 moves, the end of positioning ring 4 is provided with compact silicon cushion rubber group 5, and this compact silicon cushion rubber group 5 is made up of two or more silica gel circles, and locking mechanism 3 is arranged on the peripheral of compact silicon cushion rubber group 5 and its encapsulation is fixed between shell 2 and the metal tube.In the present embodiment, locking mechanism 3 adopts clamp-press types to connect shells 2, and the end of shell 2 is connected with band boss short tube 6, and compact silicon cushion rubber group 5 is provided with the bayonet socket with the boss clamping of short tube 6 on the shell 2 between short tube 6 and positioning ring 4.The end of metal tube head 1 is set to boss 1-1 or horn mouth 1-2, and the inner chamber of positioning ring 4 contains the inner conical surface 7 that matches with this boss 1-1 or horn mouth 1-2, and positioning ring 4, shell 2 and locking mechanism 3 are aluminum alloy or stainless steel material.

During installation, will be with boss short tube, positioning ring to be set on the naked body thin metallic tubd earlier, the mouth of pipe be expanded into horn mouth, or expand boss at body with expanding the boss instrument with flaring tool; Silica gel circle group is set between short tube and the positioning ring; Metal tube is inserted in the shell, and push-tight is also rotated short tube, and the bayonet socket that makes the boss of short tube fall shell is just finished the connection of metal tube and joint.

Embodiment 2

As Fig. 5, Fig. 6 and shown in Figure 7, the difference of present embodiment and above-mentioned mode of execution is, described locking mechanism 3 adopts the threaded Placement to be connected with shell, the end of shell 2 is provided with solenoid coil 9, compact silicon cushion rubber group 5 is socketed between pipe screw 9 and the positioning ring 4, also be provided with the precompression mechanism that is made of spring 10 and packing ring 11 between pipe screw 9 and the compact silicon cushion rubber group 5, the end of metal tube head 1 is provided with groove 12, and interlocking has opening annulus 13 on the groove 12; The end of metal tube head 1 is set to flange 1-3, and the inner chamber of positioning ring 4 contains the step surface 8 that matches with flange 1-3.

During installation, to manage screw earlier, positioning ring is set on the naked body thin metallic tubd, turn up to pipe on the metal mouth of pipe with pliers, or the mouth of pipe is expanded into horn mouth with flaring tool, or expand boss at body with expanding the boss instrument, and or press groove at body with hobboing cutter, can select for use and add shock mount in order to improve compensation rate, need spring when adding shock mount, pad also is set on the naked body thin metallic tubd; Then, silica gel circle group is set between pipe screw and the positioning ring; The opening annulus of 3/4 circle is put on the groove, advances in the inner chamber of positioning ring; Metal tube is inserted in the shell, tighten the connection that the pipe screw is just finished metal tube and joint.

The utility model is not limited to the foregoing description; described locking mechanism can also adopt the flange-type Placement; promptly be that pipe screw during threaded connects makes pipe flange into; those skilled in the art also can do numerous modifications and variations; under the spirit that does not break away from model utility, all in the claimed scope of the utility model.

Claims

1, a kind of tape spool is to the thin-wall metal pipe joint of compensation, be socketed on the metal tube head, comprise shell and inner locking mechanism, positioning ring thereof, it is characterized in that: be provided with in the described positioning ring and can hold the cavity that the metal tube head moves, the end of positioning ring is provided with compact silicon cushion rubber group, and locking mechanism is arranged on the peripheral of compact silicon cushion rubber group and its encapsulation is fixed between shell and the metal tube.

2, tape spool according to claim 1 is to the thin-wall metal pipe joint of compensation, and it is characterized in that: the end of described metal tube head is provided with boss, and the inner chamber of positioning ring contains the inner conical surface that matches with this boss.

3, tape spool according to claim 1 is to the thin-wall metal pipe joint of compensation, and it is characterized in that: the end of described metal tube head is provided with horn mouth, and the inner chamber of positioning ring contains the inner conical surface that matches with this horn mouth.

4, tape spool according to claim 1 is to the thin-wall metal pipe joint of compensation, and it is characterized in that: the end of described metal tube head is provided with flange, and the inner chamber of positioning ring contains the step surface that matches with this flange.

5, tape spool according to claim 1 is to the thin-wall metal pipe joint of compensation, and it is characterized in that: the end of described metal tube head is provided with groove, and interlocking has the opening annulus on the groove.

6, tape spool according to claim 1 is to the metallic pipe coupling of compensation, and it is characterized in that: described compact silicon cushion rubber group is made up of two or more silica gel circles.

7, tape spool according to claim 1 is to the thin-wall metal pipe joint of compensation, it is characterized in that: described locking mechanism adopts the threaded Placement to be connected with shell, the end of shell is provided with solenoid coil, and compact silicon cushion rubber group is socketed between pipe screw and the positioning ring.

8, tape spool according to claim 7 is characterized in that: also be provided with the precompression mechanism that is made of spring and packing ring between described pipe screw and the compact silicon cushion rubber group to the thin-wall metal pipe joint of compensation.

9, tape spool according to claim 1 is to the thin-wall metal pipe joint of compensation, it is characterized in that: described locking mechanism adopts the clamp-press type Placement to be connected with shell, the end of shell is connected with band boss short tube, compact silicon cushion rubber group is provided with the bayonet socket with the boss clamping of short tube on the shell between short tube and positioning ring.

10, tape spool according to claim 1 is to the thin-wall metal pipe joint of compensation, and it is characterized in that: described positioning ring, shell and locking mechanism are aluminum alloy or stainless steel material.