CN203309407U

CN203309407U - Expansion sealing device

Info

Publication number: CN203309407U
Application number: CN2013203111736U
Authority: CN
Inventors: 杨华杰; 杨凯麟; 王镝; 树贵明
Original assignee: SHANDONG WARMAN MACHINERY TECHNOLOGY Co Ltd
Current assignee: SHANDONG WARMAN MACHINERY TECHNOLOGY Co Ltd
Priority date: 2013-05-31
Filing date: 2013-05-31
Publication date: 2013-11-27
Anticipated expiration: 2023-05-31

Abstract

The utility model discloses an expansion sealing device, comprising an outer wall and a ring-shaped cavity, wherein the outer wall is made of elastic materials, and the ring-shaped cavity is formed by the outer wall and is used for containing expanding materials; the outer side of the outer wall is provided with a filling port for filling the expanding materials. The expansion sealing device disclosed by the utility model has the advantages that after an inserting head of a pipeline connecting device is inserted into a bearing head cavity, the expanding materials are filled into the ring-shaped cavity by the filling port, expand the elastic outer wall of the expansion sealing device after expanding in the ring-shaped cavity, and then press an outer convex groove of a bearing head and an inner concave groove of the inserting head so as to realize sealing and longitudinal fixing of the jointed part between the bearing head and the inserting head.

Description

A kind of Inflatable sealing device

Technical field

The utility model relates to the tubing field, in particular to a kind of Inflatable sealing device for the seal for pipe joints connection.

Background technique

Pipeline is the most quick, the economic and method reliably of fed sheet of a media, and rock gas, water, oil etc. can be carried by pipeline.Along with expanding economy, the use amount of pipeline is more and more, and caliber is also increasing.

The interconnection technique of pipeline has very important impact to the laying construction process of pipeline or the sealing effect of conveyance conduit, existing pipeline Placement is nothing more than several forms such as flange connection, rapid pipe joint connection are arranged, but all there is certain defect in these Placements.For example, common flange connection trouble, more with accessories such as bolt, mats, Seepage when bolton is asymmetric, easily occurs, because bolt quantity is many, the workload of clamping bolt is large, installation cost is high, when for the underground pipes road, because of pipeline, want earthing to fill and often do not set up rigid support, when foundation settlement, easily cause the destruction of link and lost efficacy.

In view of this, for solving the deficiency in above-mentioned technology, the utility model people is based on the research and development of association area, and constantly test and improvement of process, and then generation of the present utility model is arranged.

The model utility content

The utility model provides a kind of Inflatable sealing device, in order to overcome at least one problem existed in prior art.

For achieving the above object, the utility model provides a kind of Inflatable sealing device, comprising: the outer wall made from elastic material and by outer wall form be used to holding the toroidal cavity of expanding material, the arranged outside of outer wall is useful on the inlet that injects expanding material.

Optionally, on the outer wall of Inflatable sealing device, also be provided with relief opening.

Optionally, in inlet in toroidal cavity, be provided with the first auto-closing unit, the first auto-closing unit comprises the first elastic support horizontal bar and the first spheroid, the two ends of the first elastic support horizontal bar are separately positioned on the sidewall in inlet, the first spheroid is arranged on the first elastic support horizontal bar, the diameter of the first spheroid is greater than the end diameter of inlet, the diameter of the first spheroid is less than the inner diameter of inlet, under thrust when the expanding material in toroidal cavity expands, the first ball seal is lived inlet.

Optionally, in relief opening in toroidal cavity, be provided with the second auto-closing unit, the two ends of the second elastic support horizontal bar are separately positioned on the sidewall in relief opening, the second spheroid is arranged on the second elastic support horizontal bar, the diameter of the second spheroid is greater than the end diameter of relief opening, the diameter of the second spheroid is less than the inner diameter of relief opening, and under the thrust the when expanding material in toroidal cavity expands, the second ball seal is lived relief opening.

In the above-described embodiments, after in plug inserts the die cavity of taking the lead, expanding material is injected in the toroidal cavity of Inflatable sealing device by perforate and inlet, the elastic outer wall of expansion Inflatable sealing device expanding material expands in toroidal cavity after, the evagination groove that compression is taken the lead and the indent groove that compresses plug, realize taking the lead and the sealing of plug junction and vertically fixing; And seal operation of the present utility model is easy, cost is lower.

The accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the structural representation of assembling pipe joint of an embodiment's of the utility model employing Inflatable sealing device;

Fig. 2 is Fig. 1 embodiment's the structural representation of taking the lead;

Fig. 3 is the structural representation of Fig. 1 embodiment's Inflatable sealing device device;

Fig. 4 is the sectional drawing of Fig. 1 embodiment's Inflatable sealing device device.

Description of reference numerals: 101-takes the lead; The 102-plug; 103-Inflatable sealing device device; The 201-die cavity; The 202-groove; The 301-inlet; The outer wall of 302-Inflatable sealing device device; The 303-toroidal cavity; 304-the first spheroid; 305-the first elastic support horizontal bar.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not paying under the creative work prerequisite the every other embodiment who obtains, and all belong to the scope of the utility model protection.

Below in conjunction with the specific embodiment that Inflatable sealing device is applied to the pipeline connection, introduce the structure of Inflatable sealing device.

Fig. 1 is the structural representation of an embodiment's of the utility model the assembling pipe joint with Inflatable sealing device; Fig. 2 is Fig. 1 embodiment's the structural representation of taking the lead; Fig. 3 is the structural representation of Fig. 1 embodiment's Inflatable sealing device; Fig. 4 is the structural representation of Fig. 1 embodiment's plug.As shown in Figure 1 to 4, this assembling pipe joint comprises: plug 102 and the Inflatable sealing device 103 of taking the lead 101, being connected with another pipeline that with a pipeline, are connected, wherein:

101 die cavities 201 with the setting geometrical shape processed by mechanical means of taking the lead, be provided with on the inwall of die cavity 201 be used to the evagination groove 202 of Inflatable sealing device is installed;

Plug 102 has the outer wall adapted with die cavity 201, on the outer wall of plug 102, is provided with the indent groove adapted with evagination groove 202, is suitable for inserting in die cavity 201;

Inflatable sealing device 103 comprises the outer wall 302 made from elastic material and the toroidal cavity 303 be used to holding expanding material formed by outer wall 302, and the arranged outside of outer wall 302 is useful on the inlet 301 that injects expanding material;

One perforate is set on groove, perforate runs through the outer wall of die cavity, when Inflatable sealing device is installed, inlet 301 is corresponding with perforate, and by perforate and inlet 301, expanding material is injected in the toroidal cavity 303 of Inflatable sealing device 103 after plug 102 insertion die cavities 201 are interior, expanding material is expanded the elastic outer wall 302 of Inflatable sealing device 103 afterwards in the interior expansion of toroidal cavity 303, the indent groove that compression is taken the lead 101 evagination groove 202 and compressed plug 102, realize to take the lead 101 with the sealing of plug 102 junctions and vertically fixing.

In the above-described embodiments, when the expanding material of the toroidal cavity that injects Inflatable sealing device, the air in toroidal cavity can be discharged by inlet.In addition, the relief opening that is exclusively used in exhaust can also be set on Inflatable sealing device, for by inlet when injecting expanding material in the toroidal cavity of Inflatable sealing device, discharge the gas in toroidal cavity, in order to make expanding material be full of the toroidal cavity of Inflatable sealing device.

For example, overflow toroidal cavity when avoiding expanding material to expand, also can in the inlet 301 in toroidal cavity, be provided with the first auto-closing unit, the first auto-closing unit comprises the first elastic support horizontal bar 305 and the first spheroid 304, the two ends of the first elastic support horizontal bar 305 are separately positioned on the sidewall in inlet 301, the first spheroid 304 is arranged on the first elastic support horizontal bar 305, the diameter of the first spheroid 304 is greater than the end diameter of inlet 301, the diameter of the first spheroid 304 is less than the inner diameter of inlet 301, under thrust when the expanding material in toroidal cavity 303 expands, the first spheroid 304 seals up the port of inlet.

For example, overflow toroidal cavity when avoiding expanding material to expand, also can in the relief opening in toroidal cavity, be provided with the second auto-closing unit, the two ends of the second elastic support horizontal bar are separately positioned on the sidewall in relief opening, the second spheroid is arranged on the second elastic support horizontal bar, the diameter of the second spheroid is greater than the end diameter of relief opening, the diameter of the second spheroid is less than the inner diameter of relief opening, under thrust when the expanding material in toroidal cavity expands, the second ball seal is lived relief opening.

One of ordinary skill in the art will appreciate that: accompanying drawing is an embodiment's schematic diagram, and the module in accompanying drawing or flow process might not be that enforcement the utility model is necessary.

One of ordinary skill in the art will appreciate that: the module in the device in embodiment can be described and be distributed in embodiment's device according to embodiment, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.

Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme that previous embodiment is put down in writing, or part technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of the utility model embodiment technological scheme.

Claims

1. an Inflatable sealing device, is characterized in that, comprising: the outer wall made from elastic material and by described outer wall form be used to holding the toroidal cavity of expanding material, the arranged outside of described outer wall is useful on the inlet that injects expanding material.

2. Inflatable sealing device according to claim 1, is characterized in that, on described outer wall, also is provided with relief opening.

3. Inflatable sealing device according to claim 1, it is characterized in that, in described inlet in described toroidal cavity, be provided with the first auto-closing unit, described the first auto-closing unit comprises the first elastic support horizontal bar and the first spheroid, the two ends of described the first elastic support horizontal bar are separately positioned on the sidewall in described inlet, described the first spheroid is arranged on described the first elastic support horizontal bar, the diameter of described the first spheroid is greater than the end diameter of described inlet, the diameter of described the first spheroid is less than the inner diameter of described inlet, under thrust when the expanding material in described toroidal cavity expands, inlet is stated in described the first ball seal residence.

4. Inflatable sealing device according to claim 2, it is characterized in that, in described relief opening in described toroidal cavity, be provided with the second auto-closing unit, the two ends of described the second elastic support horizontal bar are separately positioned on the sidewall in described relief opening, described the second spheroid is arranged on described the second elastic support horizontal bar, the diameter of described the second spheroid is greater than the end diameter of described relief opening, the diameter of described the second spheroid is less than the inner diameter of described relief opening, under thrust when the expanding material in described toroidal cavity expands, relief opening is stated in described the second ball seal residence.