A kind of plugging device
Technical field
The present invention relates to a kind of plugging devices, the especially valve in repairing, safeguarding various pipeline with pressure and replace pipeline
When for blocking the plugging device of medium in upstream line.
Background technology
In the various pipeline with pressure engineer operations such as modern On The Oil And Gas Transportation, the transmission & distribution of pipeline safeguard that repairing work is important
Basic link, along with the continuous progress of city development process, various pipe pressurized job engineerings are very frequent;In transmission & distribution pipe
In the system in road, pressure valve etc. is the important composition component of such pipeline distributing system;However above-mentioned pressure valve is permanent
Using either inevitably occurring aging or etching problem in acid or alkali environment, so that cause stress the leakage of valve, not only shadow
Ring and use, once and the medium in pipeline largely leakage can fire hazard, explode or the accidents such as hurt sb.'s feelings, to country and
The life of the common people causes huge loss.Therefore safer, effective pipe pressurized operation technique is needed to complete, such as replaces pressure
Power valve is to restore the normal function of pipe-line equipment;But plugging device of the prior art is not only complicated, and when constructing
It is cumbersome, plugging effect is undesirable, operation when need rotary torsion excessive technological deficiency.
Invention content
In order to solve plugging device in the prior art it is complicated, when it is cumbersome, plugging effect is undesirable, operation
When need rotary torsion excessive technological deficiency, the invention discloses a kind of plugging devices, of the existing technology above-mentioned to overcome
Technological deficiency.
The present invention solve technical problem technical solution be:
A kind of plugging device, including adaptive device, driving device and plugging device;It is characterized in that:
The adaptive device, including being adapted to cylinder, the adaptation cylinder is used to be adapted to connection with the pipe fitting of pipeline;
The driving device, including interior bar and outer bar, the interior bar is sleeved in the outer bar, and can be in the outer bar
It is inside freely rotated, the lower part of the interior bar is equipped with external screw thread;
The plugging device is slided including blocking shell, the first compression cone-plate, the second compression cone-plate, wedge, connecting rod, wedge
Block and elasticity, which block, encloses;The first compression cone-plate and the second compression cone-plate are respectively provided with a conical surface, second compression
Cone-plate has in the horizontal direction of the conical surface there are one flange, there are one the first compression cone-plate has in the horizontal direction of the conical surface
Cavity, the flange are inserted into the cavity, and the flange and the cavity are clearance fit, first compression cone
The elasticity is set to block between the conical surface of the conical surface of plate and the second compression cone-plate to enclose, the elasticity blocks snare and is connected on institute
It states on flange;One end of the connecting rod is fixedly connected with the described first compression cone-plate, and the other end of the connecting rod passes through described the
Two compression cone-plates are fixedly connected with the wedge, the closure shell equipped with slideway, the wedge can in the slideway water
Smooth dynamic, the second compression cone-plate is oblique with being adapted with the wedge slider shape close to the end face of the wedge
Face, the wedge sliding block can relatively it is described second compression cone-plate inclined-plane slide, and the wedge sliding block bottom it is big top it is small, it is described to carve
Internal thread is equipped in shape sliding block;
The outer bar passes through the upper end of the adaptation cylinder to be connect with the closure outer casing screw, and the interior bar is set by lower part
The internal thread being equipped in some external screw threads and the wedge sliding block is adapted to connection.
Further, the axis for the internal thread that the wedge sliding block is equipped with has the inclination angle more than zero degree with vertical direction.
It should be noted that it needs that plugging device is shifted onto to the pipeline for needing to block using interior bar and outer bar in operation
It is interior, interior bar is then rotated again so that wedge sliding block to be driven to move up, so as to which wedge sliding block is driven by squeezing wedge, wedge by connecting rod
First compression cone-plate squeezes elasticity and blocks circle, and elasticity blocks squeezing action of the circle in the first compression cone-plate and the second compression cone-plate
Under, it expands outward, so as to sealing pipeline.Why the axis for the internal thread that wedge sliding block is equipped with has with vertical direction is more than zero
The inclination angle of degree is because interior bar is when driving wedge sliding block to move up, and interior bar is in heeling condition, in order to more effortless;Assuming that interior bar
It is plugging device to be pushed to enter in the pipeline for needing to block by horizontal force, will so that operation is more laborious.
Further, the adaptation cylinder is equipped with cylinder ontology, cylinder upper cover, the multi-directional ball gland and ten thousand of ring flange including lower end
To ball;The cylinder upper cover is removably sealedly connected on the upper end of the cylinder ontology, is opened up in the middle part of the cylinder upper cover
There are one being open, the multi-directional ball is embedded into the opening, and the multi-directional ball gland is fixedly connected on the cylinder on lid, institute
Multi-directional ball gland is stated for fixing the multi-directional ball.
Further, diffusion valve is additionally provided on the side wall of the adaptation cylinder, the diffusion valve is used to discharge in pipeline
Pressure medium.
Further, the top of the outer bar is additionally provided with lock nut and lock nut lid, and internal thread is equipped in the lock nut, described outer
The top of bar is equipped with external screw thread, the lock nut by the internal thread that it is equipped with and the external screw thread that the outer bar top is equipped with it is described
Outer bar connects, and the top of the interior bar is pierced by the lock nut, and the lock nut lid, which is socketed in the interior bar to seal with lock nut, to be connected
It connects.
Further, the elasticity blocks circle as trapezoid cross section rubber seal.The nominal that it can be widely applied to is straight
In the larger pipeline of diameter tolerance, it can also be compressed because trapezoid cross section rubber can expand and form one with internal pipeline wall
A bulk contact area, so as to eliminate any possible leakage.
It should be noted that the sealed connection of lock nut and lock nut lid can be to avoid gap of the combustion gas between outer bar and interior bar
Middle spilling.
Further, need the gas pipeline blocked internal diameter subtract the elasticity block outer diameter of circle when being uncompressed it
Difference is not more than 40 millimeters.
Beneficial effects of the present invention are that extruding elasticity envelope is realized by the way of screw drive between interior bar and wedge sliding block
The mode of stifled circle seal pressure pipeline, compared to gear-driven mode, structure is simpler, and compared to gear transmission mode more
It is laborsaving.
Description of the drawings
Fig. 1 is the structure diagram of one embodiment of the present of invention.
The reference numerals are as follows:1- is adapted to cylinder;2- interior bars;3- outer bars;4- blocks shell;5- first compresses cone-plate;6-
Second compression cone-plate;7- wedges;8- connecting rods;9- wedge sliding blocks;10- elasticity blocks circle;11- ontologies;12- upper covers;13- ten thousand
To ball;14- multi-directional ball glands;15- diffusion valves;16- lock nuts;17- lock nut lids.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
It is without being limited thereto.
As shown in Figure 1, being the sectional view of plugging device provided by the invention, including adaptive device, driving device and dress is blocked
It puts;
Adaptive device, including being adapted to cylinder 1, adaptation cylinder 1 is used to be adapted to connection with the pipe fitting of pipeline;
Driving device, including interior bar 2 and outer bar 3, interior bar 2 is sleeved in outer bar 3, and can be freely rotated in outer bar 3,
The lower part of interior bar 2 is equipped with external screw thread;
Plugging device compresses the compression of cone-plate 5, second cone-plate 6, wedge 7, connecting rod 8, wedge cunning including blocking shell 4, first
Block 9 and elasticity, which block, encloses 10;First compression cone-plate 5 and second compresses cone-plate 6 and is respectively provided with a conical surface, and the second compression cone-plate 6 exists
Tool is there are one flange in the horizontal direction of the conical surface, the first compression cone-plate 5 have in the horizontal direction of the conical surface there are one cavity, flange
It is inserted into cavity, flange and the cone that cavity is clearance fit, the conical surface of the first compression cone-plate 5 and the second compression cone-plate 6
Elasticity is set to block circle 10 between face, elasticity blocks circle 10 and is socketed on flange;One end of connecting rod 8 and the first compression cone-plate 5 are solid
Fixed connection, the other end of connecting rod 8 pass through the second compression cone-plate 6 to be fixedly connected with wedge 7, block shell 4 and be equipped with slideway, wedge
7 horizontal in slideway can slide, and the second compression cone-plate 6 has what is be adapted with 9 shape of wedge sliding block close to the end face of wedge 7
Inclined-plane, wedge sliding block 9 can be slided with respect to the inclined-plane of the second compression cone-plate 6, and the big top in 9 bottom of wedge sliding block is small, is set in wedge sliding block 9
There is internal thread;
Outer bar 3 passes through cylinder upper cover 12 to be threadedly coupled with blocking shell 4, the external screw thread and wedge that interior bar 2 is equipped with by lower part
The internal thread adaptation connection being equipped in sliding block 9.
Cylinder 1 is adapted to, cylinder ontology 11, cylinder upper cover 12, multi-directional ball gland 14 and the multi-directional ball 13 of ring flange are equipped with including lower end;
Cylinder upper cover 12 is removably sealedly connected on the upper end of an ontology 11, and the middle part of cylinder upper cover 12 is opened up there are one opening,
Multi-directional ball 13 is embedded into opening, and multi-directional ball gland 14 is fixedly connected in a upper cover 12, and multi-directional ball gland 14 is used to fix ten thousand
To ball 13.
It should be noted that the opening tool of cylinder upper cover 12 has one there are one semi-circular recesses on multi-directional ball gland 14
It is a with cylinder upper cover 12 semi-circular recesses groove of the same size, the groove on multi-directional ball gland 14 and the groove in cylinder upper cover 12
During fastening, multi-directional ball 13 is just accommodated.
It is adapted on the side wall of cylinder 1 and is additionally provided with diffusion valve 15
The top of outer bar 3 is additionally provided with lock nut 16 and lock nut lid 17, is equipped with internal thread in lock nut 16, the top of outer bar 3 is equipped with
External screw thread, lock nut 16 are connect, and the top of interior bar 2 by the internal thread that it is equipped with the external screw thread that 3 top of outer bar is equipped with outer bar 3
End is pierced by lock nut 16, and lock nut lid 17 is socketed in interior bar 2 and is tightly connected with lock nut 16.
Embodiment:
Connecting cylinder ontology 11 seals cylinder upper cover 12 and cylinder ontology 11 on the pipe fitting of pressure pipeline for needing to block first
Connection, multi-directional ball 13 is socketed on the outer wall of outer bar 3, and there are one semi-circular recesses, multi-directional ball glands 14 for tool in cylinder upper cover 12
Upper tool is there are one semi-circular recesses groove of the same size with cylinder upper cover 12, groove and cylinder upper cover 12 on multi-directional ball gland 14
On groove when fastening, just accommodate multi-directional ball 13, the outer wall junction of multi-directional ball 13 and outer bar 3 is additionally provided with sealing ring, close
Seal is used to seal the junction of adaptive device and outer bar, prevents fluid media (medium) from leaking, and the lid of multi-directional ball gland 14 closes multi-directional ball 13
In in cylinder upper cover 12;It holds outer bar 3 plugging device is lowered into pressure pipeline, is pushed into bottom, moves outer bar 3 by plugging device
It shifts onto in the pressure pipeline for needing to block, when confirmation plugging device is located in the pressure pipeline for needing to block and in horizontality
When, rotation interior bar 2 is to drive wedge sliding block 9 to move up, so as to which wedge sliding block 9 is driven by squeezing wedge 7, wedge 7 by connecting rod 8
First compression cone-plate 5 squeezes elasticity and blocks circle 10, and elasticity blocks circle 10 and compresses squeezing for cone-plate 6 in the first compression cone-plate 5 and second
It under pressure effect, expands outward, so as to sealing pipeline.
Present invention is not limited to the embodiments described above, in the case of without departing substantially from the substantive content of the present invention, this field skill
Any deformation, improvement, the replacement that art personnel are contemplated that each fall within the scope of the present invention.