CN103174907B - Pipeline built-in sealing device - Google Patents
Pipeline built-in sealing device Download PDFInfo
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- CN103174907B CN103174907B CN201310092801.0A CN201310092801A CN103174907B CN 103174907 B CN103174907 B CN 103174907B CN 201310092801 A CN201310092801 A CN 201310092801A CN 103174907 B CN103174907 B CN 103174907B
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Abstract
The invention relates to a large diameter pipeline built-in sealing device. A hole is formed in the center of a plugging plate, a rolling bearing is arranged in the hole, and an internal thread sleeve is installed on the plugging plate through the rolling bearing. One end of the internal thread sleeve is provided with a rotating device, and the other end of the internal thread sleeve is connected with one end of an external thread central rod in a matched mode. The other end of the external thread central rod is hinged with one end of a connection rod II. The other ends of two connection rods I are provided with slope sealing heads. The other end of the connection rod II is hinged with a rigid semi-ring. The rigid semi-ring is provided with a rubber sealing ring. The plugging plate is further provided with a telescopic rod which is fixedly connected with the plugging plate through a connection end of the telescopic rod, and the other end of the telescopic rod is hinged with the rigid semi-ring. The plugging plate is further provided with a fixing ring which is used for limiting the telescopic rod to move on the plugging plate. The pipeline built-in sealing device can achieve sealing of an end of a pipeline without the need for welding. In addition, the pipeline built-in sealing device is simple to manufacture, convenient to assemble and disassemble, and good in sealing effect.
Description
Technical field
The present invention relates to a kind of pipe closing device, particularly the built-in locking device of a kind of large diameter pipeline.
Background technique
At present, long apart from Direct-Buried Heating Pipeline work progress in, when every day, construction finished, all need the end of channelling to seal temporarily, because various fortuitous events cause foreign material, rainwater or toy etc., enter in pipeline avoiding, increase flushing difficulty and the operation risk of pipeline.At present, the method that the temporary enclosed of pipe end generally adopts is to seal with blind plate, is about to blind plate full weld and seals at pipe end.When second day is constructed, need to the blind plate of welding be removed with cutter.Adopt in this way, when not only welding and removing blind plate, very easily damage tube wall, and welding and the process of removing more complicated all, inefficiency.And the blind plate after removing can not be reused, cause great goods and materials waste, construction cost is high.
Summary of the invention
In order to solve the easy damage tube wall in welding and dismounting blind plate process existing in prior art, construction is complicated, ineffective technical problem, in order to solve blind plate in prior art, can not reuse simultaneously, thereby cause goods and materials waste, the technical problem that construction cost is high, the object of the present invention is to provide a kind of built in pipeline locking device, this built in pipeline locking device does not need welding just can realize the sealing of pipe end, avoided the damage to tube wall in the process of closed conduct end, and this built in pipeline locking device is made simple, easy to loading and unloading, good sealing effect, after dismounting, can reuse, reduced construction cost.
To achieve these goals, the invention provides a kind of built in pipeline locking device, comprise plugging plate, its center has hole, is provided with rolling bearing in hole, and inner thread sleeve is arranged on plugging plate by this rolling bearing; One end of inner thread sleeve is provided with slewing gear, and one end of the other end and outside thread center-pole is connected, and one end of the other end of outside thread center-pole and connecting rod II is hinged; The other end of connecting rod II and rigidity semi-ring are hinged; On rigidity semi-ring, be provided with rubber seal;
On described plugging plate, be also provided with flexible rod, it is fixedly connected with plugging plate by connecting end, and the other end and rigidity semi-ring are hinged; On described plugging plate, be also provided with retaining ring, for flexible rod being limited in to the flat in-plane moving of plugging plate.
Preferably, described built in pipeline locking device is also provided with two connecting rod I, one end of these two connecting rod I and outside thread center-pole are hinged, the other end is provided with inclined-plane sealing head, in order to the gap between two rigidity semi-rings of shutoff, this inclined-plane sealing head can move along the sealing head fixed cover being fixed on plugging plate.
Preferably, described rubber seal is two half-turns.
Preferably, on described plugging plate, the circumference of the another side contrary with flexible rod is installed is provided with catch.
Preferential, the material of described catch is rubber.
Preferential, the slewing gear that described inner thread sleeve one end arranges is interior six square toes.
Preferably, on described plugging plate, be provided with handle on the another side contrary with flexible rod is installed.
Preferably, at described flexible rod, mutually between flexible two-part that connect, be provided with spring.
Preferential, described connecting rod II is provided with four.
Preferential, described flexible rod is provided with four.
The invention has the beneficial effects as follows: this built in pipeline locking device does not need welding just can realize the sealing of pipe end, avoided the damage to tube wall in the process of closed conduct, and this built in pipeline locking device is made simple, easy to loading and unloading, good sealing effect, after dismounting, can reuse, reduce construction cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of built in pipeline locking device of the present invention;
Fig. 2 is the A-A direction sectional view of Fig. 1;
Fig. 3 is one of sealing head fixed cover and inclined-plane sealing head partial enlarged drawing;
Fig. 4 is two of sealing head fixed cover and inclined-plane sealing head partial enlarged drawing;
Fig. 5 is the structural representation of flexible rod;
Fig. 6 is the sectional view of flexible rod and retaining ring;
Fig. 7 is the structural representation of rigidity semi-ring and rubber seal half-turn.
Reference character:
1. plugging plate; 101. handle; 2. catch; 3. flexible rod; 31. fixed ends; 4. retaining ring;
5. rigidity semi-ring; 61. connecting rod I; 62. connecting rod II; 7. rubber seal; 8. outside thread center-pole;
9. inner thread sleeve; 10. rolling bearing; Six square toes in 11.; 12. inclined-plane sealing heads;
13. sealing head fixed covers; 14. pipelines; 15. springs
Embodiment
Hereinafter with reference to accompanying drawing, to a preferred embodiment of the present invention will be described in detail.
Embodiment one
As depicted in figs. 1 and 2, built in pipeline locking device of the present invention comprises plugging plate 1, and its diameter is slightly less than the diameter of channelling, and the center has hole, in hole, be provided with rolling bearing 10, inner thread sleeve 9 is arranged on plugging plate 1 by this rolling bearing 10; One end of inner thread sleeve 9 is provided with slewing gear, and in the present embodiment, preferably interior six square toes 11 of this slewing gear, can play a part antitheft.One end of the other end of inner thread sleeve 9 and outside thread center-pole 8 is connected, and when inner thread sleeve 9 rotation, outside thread center-pole 8 can move along its axis in inner thread sleeve 9.One end of the other end of outside thread center-pole 8 and connecting rod II62 is hinged.
One end of connecting rod II62 and outside thread center-pole 8 are hinged, and the other end and rigidity semi-ring 5 are hinged; On rigidity semi-ring 5, be provided with rubber seal 7.In the present embodiment, connecting rod II62 is preferably set to four, is distributed on two rigidity semi-rings 5.
As shown in Figure 1, on described plugging plate 1, be also provided with flexible rod 3, it is fixedly connected with plugging plate 1 by fixed end 31, and the other end and rigidity semi-ring 5 are hinged; As shown in Figure 5, in the present embodiment, flexible rod 3 is provided with spring 15 between flexible two-part that connect mutually, and when this built in pipeline locking device of dismounting, spring 15 can pull rigidity semi-ring 5 to depart from inner-walls of duct together with rubber seal 7.As shown in Figure 1, in the present embodiment, on plugging plate 1, be symmetrically arranged with four flexible rods 3.
As shown in Figure 5, on plugging plate 1, be also provided with retaining ring 4, for flexible rod 3 being limited in to fore and aft motion in plugging plate 1 plane.Because flexible rod 3 and rigidity semi-ring 5 are hinged, rigidity semi-ring 5 is hinged with one end of connecting rod II62, therefore, retaining ring 4 also can be limited in the flat in-plane moving of plugging plate 1 by rigidity semi-ring 5 and with the rounded end of the hinged connecting rod II62 of rigidity semi-ring 5, thereby realizes the sealing function of this built in pipeline locking device.
As shown in Figure 2, on plugging plate 1, with flexible rod 3 is installed, on contrary another side, be provided with handle 101, convenient gripping when carrying out pipe sealing operation.Circumference place at the plugging plate 1 of this face is also provided with catch 2, and catch 2 stretches out plugging plate 1 circumference certain distance.Because the diameter of shut 1 is less than the diameter of pipeline, after this built in pipeline locking device installation, also there is certain gap in the circumference of shut 1 and pipeline, and this catch 2 can avoid fixedly foreign material to enter the gap between plugging plate 1 and pipeline.The material of catch 2 should have certain elasticity and hardness, and in the present embodiment, preferably rubber, can not only meet the demands, and wear-resistant, cost is low.
Embodiment two
As depicted in figs. 1 and 2, built in pipeline locking device of the present invention comprises plugging plate 1, and its diameter is slightly less than the diameter of channelling, and the center has hole, in hole, be provided with rolling bearing 10, inner thread sleeve 9 is arranged on plugging plate 1 by this rolling bearing 10; One end of inner thread sleeve 9 is provided with slewing gear, and in the present embodiment, preferably interior six square toes 11 of this slewing gear, can play a part antitheft.One end of the other end of inner thread sleeve 9 and outside thread center-pole 8 is connected, and when inner thread sleeve 9 rotation, outside thread center-pole 8 can move along its axis in inner thread sleeve 9.One end of the other end of outside thread center-pole 8 and connecting rod II62 is hinged.
One end of connecting rod II62 and outside thread center-pole 8 are hinged, and the other end and rigidity semi-ring 5 are hinged; On rigidity semi-ring 5, be provided with rubber seal 7.In the present embodiment, connecting rod II62 is preferably set to four, is distributed on two rigidity semi-rings 5.
As shown in Figure 1, the built in pipeline locking device of the present embodiment is also provided with two connecting rod I61, and one end of these two connecting rod I61 and outside thread center-pole 8 are hinged, and the other end is provided with inclined-plane sealing head 12.As shown in Figure 6, described inclined-plane sealing head 12, in order to the gap between two rigidity semi-rings 5 of shutoff, is pressed on rubber seal 7 on inner-walls of duct simultaneously, has strengthened sealing.As shown in Figure 1, on plugging plate 1, the jointing of two rigidity semi-rings 5 is provided with sealing head fixed cover 13, described inclined-plane sealing head 12 can move along a sealing fixed cover 13 in the plane of plugging plate 1.
As shown in Figure 1, on described plugging plate 1, be also provided with flexible rod 3, it is fixedly connected with plugging plate 1 by fixed end 31, and the other end and rigidity semi-ring 5 are hinged; As shown in Figure 5, in the present embodiment, flexible rod 3 is provided with spring 15 between flexible two-part that connect mutually, and when this built in pipeline locking device of dismounting, spring 15 can pull rigidity semi-ring 5 to depart from inner-walls of duct together with rubber seal 7.As shown in Figure 1, in the present embodiment, on plugging plate 1, be symmetrically arranged with four flexible rods 3.
As shown in Figure 5, on plugging plate 1, be also provided with retaining ring 4, for flexible rod 3 being limited in to fore and aft motion in plugging plate 1 plane.Because flexible rod 3 and rigidity semi-ring 5 are hinged, rigidity semi-ring 5 is hinged with one end of connecting rod II62, therefore, retaining ring 4 also can be limited in the flat in-plane moving of plugging plate 1 by rigidity semi-ring 5 and with the rounded end of the hinged connecting rod II62 of rigidity semi-ring 5, thereby realizes the sealing function of this built in pipeline locking device.
As shown in Figure 2, on plugging plate 1, with flexible rod 3 is installed, on contrary another side, be provided with handle 101, convenient gripping when carrying out pipe sealing operation.Circumference place at the plugging plate 1 of this face is also provided with catch 2, and catch 2 stretches out plugging plate 1 circumference certain distance.Because the diameter of shut 1 is less than the diameter of pipeline, after this built in pipeline locking device installation, also there is certain gap in the circumference of shut 1 and pipeline, and this catch 2 can avoid fixedly foreign material to enter the gap between plugging plate 1 and pipeline.The material of catch 2 should have certain elasticity and hardness, and in the present embodiment, preferably rubber, can not only meet the demands, and wear-resistant, cost is low.
Embodiment three
As depicted in figs. 1 and 2, built in pipeline locking device of the present invention comprises plugging plate 1, and its diameter is slightly less than the diameter of channelling, and the center has hole, in hole, be provided with rolling bearing 10, inner thread sleeve 9 is arranged on plugging plate 1 by this rolling bearing 10; One end of inner thread sleeve 9 is provided with slewing gear, and in the present embodiment, preferably interior six square toes 11 of this slewing gear, can play a part antitheft.One end of the other end of inner thread sleeve 9 and outside thread center-pole 8 is connected, and when inner thread sleeve 9 rotation, outside thread center-pole 8 can move along its axis in inner thread sleeve 9.One end of the other end of outside thread center-pole 8 and connecting rod II62 is hinged.
One end of connecting rod II62 and outside thread center-pole 8 are hinged, and the other end and rigidity semi-ring 5 are hinged; On rigidity semi-ring 5, be provided with rubber seal 7.As shown in Figure 7, in the present embodiment, rubber seal 7 is two half-turns, is arranged at respectively on two rigidity semi-rings 5, is convenient to this pipeline inner sealing device when dismounting, and rigidity semi-ring 5 easily shrinks back in plugging plate 1 with rubber seal 7.Connecting rod II62 is preferably set to four, is distributed on two rigidity semi-rings 5.
As shown in Figure 1, the built in pipeline locking device of the present embodiment is also provided with two connecting rod I61, and one end of these two connecting rod I61 and outside thread center-pole 8 are hinged, and the other end is provided with inclined-plane sealing head 12.As shown in Figure 6, described inclined-plane sealing head 12, in order to the gap between two rigidity semi-rings 5 of shutoff and two semicircle rubber seal 7, is guaranteed this locking device sealing.As shown in Figure 1, on plugging plate 1, the jointing of two rigidity semi-rings 5 is provided with sealing head fixed cover 13, described inclined-plane sealing head 12 can move along a sealing fixed cover 13 in the plane of plugging plate 1.
Other structures of the present embodiment are identical with the first embodiment, repeat no more.
Below in conjunction with Figure of description, further introduce the using process of built in pipeline locking device of the present invention.
As depicted in figs. 1 and 2, while using built in pipeline locking device of the present invention to carry out pipe end " locked in " operation, with hand, catch handle 101 this built in pipeline locking device to be filled in to the end of pipeline 14, allen wrench is filled in interior six square toes of plugging plate center inner thread sleeve 9 to 11, rotating spanner, drives inner thread sleeve 9 to rotate.Because outside thread center-pole 8 is connected by screw-thread fit with inner thread sleeve 9, when inner thread sleeve 9 rotates, outside thread center-pole 8 moves axially along inner thread sleeve 9, and outside thread center-pole 8 moves to the direction near plugging plate 1.Meanwhile, under the hinged connecting rod II62 of outside thread center-pole 8 effect of thread center's bar 8 outside, by pushing the tube wall of pipeline 14 to together with rubber seal 7 with hinged two the rigidity semi-rings 5 of its other end, rubber seal 7 is pressed on tube wall.In this process, the jointing of two rigidity semi-rings 5 has formed certain breach, thread center's bar 8 is when moving near the direction of plugging plate 1 outside for connecting rod I61, and the inclined-plane sealing head 12 of its end presses to two indentation, there between rigidity semi-ring 5 along sealing head fixed cover 13, by this breach sealing.So far, the gap between plugging plate 1 and pipeline is sealed completely by rubber seal 7 and inclined-plane sealing head 12.
Because the diameter of shut 1 is less than the diameter of channelling, after this built in pipeline locking device installation, also there is certain gap in the circumference of shut 1 and pipeline, the catch 2 that is arranged at shut 1 circumference place can cover this gap, avoids fixedly foreign material to enter gap.
Before continuing pipeline construction, while needing this built in pipeline locking device to pull down, use allen wrench counterrotating, drive inner thread sleeve 9 counter-rotation, outside thread center-pole 8 moves along the axial opposite direction of inner thread sleeve 9, to the direction away from plugging plate 1, moves.Outside under the effect of thread center's bar 8, by two the rigidity semi-rings 5 hinged with it, together with rubber seal 7, the center to plugging plate 1 pulls connecting rod II62, flexible rod 3 shrinks under the effect of spring 15, also pulls rigidity semi-ring 5 simultaneously, finally makes rubber seal 7 depart from the tube wall of pipeline 14.In this process, the inclined-plane sealing head 12 of connecting rod I61 end also spins off from the indentation, there between two rigidity semi-rings 5.Then, catch handle 101 that this built in pipeline locking device is taken out from pipe end, in order to using next time.
As mentioned above, built in pipeline locking device of the present invention does not need welding just can realize the sealing of pipe end, avoided the damage to tube wall in the process of closed conduct, and this built in pipeline locking device is made simple, easy to loading and unloading, good sealing effect, after dismounting, can reuse, reduce construction cost.
The foregoing is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; those skilled in the art, not making all other embodiments that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Claims (8)
1. a built in pipeline locking device, it is characterized in that: comprise plugging plate (1), its center has hole, is provided with rolling bearing (10) in hole, and inner thread sleeve (9) is arranged on plugging plate (1) by this rolling bearing (10); One end of inner thread sleeve (9) is provided with slewing gear, and one end of the other end and outside thread center-pole (8) is connected, and one end of the other end of outside thread center-pole (8) and connecting rod II (62) is hinged; The other end of connecting rod II (62) and rigidity semi-ring (5) are hinged; On rigidity semi-ring (5), be provided with rubber seal (7);
On described plugging plate (1), be also provided with flexible rod (3), it is fixedly connected with plugging plate (1) by connecting end (31), and the other end and rigidity semi-ring (5) are hinged; On described plugging plate (1), be also provided with retaining ring (4), for flexible rod (3) being limited in to the flat in-plane moving of plugging plate (1); The circumference of the another side that described plugging plate (1) is upper, contrary with flexible rod (3) is installed is provided with catch (2);
Described built in pipeline locking device is also provided with two connecting rod I (61), one end of these two connecting rod I (61) and outside thread center-pole (8) are hinged, the other end is provided with inclined-plane sealing head (12), in order to the gap between two rigidity semi-rings of shutoff (5), this inclined-plane sealing head (12) can be mobile along the sealing head fixed cover (13) being fixed on plugging plate (1).
2. built in pipeline locking device according to claim 1, is characterized in that: described rubber seal (7) is two half-turns.
3. built in pipeline locking device according to claim 1, is characterized in that: the material of described catch (2) is rubber.
4. built in pipeline locking device according to claim 1, is characterized in that: the slewing gear that described inner thread sleeve (9) one end arranges is interior six square toes (11).
5. built in pipeline locking device according to claim 1, is characterized in that: on upper at described plugging plate (1), contrary with flexible rod (3) is installed another side, be provided with handle (101).
6. built in pipeline locking device according to claim 1, is characterized in that: at described flexible rod (3), mutually between flexible two-part that connect, be provided with spring (15).
7. built in pipeline locking device according to claim 1, is characterized in that: described connecting rod II (62) is provided with four.
8. built in pipeline locking device according to claim 1, is characterized in that: described flexible rod (3) is provided with four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310092801.0A CN103174907B (en) | 2013-03-21 | 2013-03-21 | Pipeline built-in sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310092801.0A CN103174907B (en) | 2013-03-21 | 2013-03-21 | Pipeline built-in sealing device |
Publications (2)
| Publication Number | Publication Date |
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| CN103174907A CN103174907A (en) | 2013-06-26 |
| CN103174907B true CN103174907B (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310092801.0A Active CN103174907B (en) | 2013-03-21 | 2013-03-21 | Pipeline built-in sealing device |
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| CN (1) | CN103174907B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455905B (en) * | 2014-12-02 | 2016-03-02 | 安徽工程大学 | A kind of end cap |
| CN110307436B (en) * | 2019-07-11 | 2021-06-04 | 周纯 | PVC pipeline afterbody head device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB337650A (en) * | 1929-12-09 | 1930-11-06 | Patrick Goodman | Improvements in conduit stoppers |
| GB383379A (en) * | 1931-10-15 | 1932-11-17 | Edwin Pass | Improvements in and connected with collapsible and expansible spring or flexible devices for use with gas main or like stoppers |
| DE3818001C3 (en) * | 1988-05-27 | 1998-02-12 | Trumpf Gmbh & Co | Punching machine with interchangeable and replaceable punching tool and with a workpiece feed |
| US5695003A (en) * | 1994-07-19 | 1997-12-09 | Foster-Miller, Inc. | System for sealing the nozzle of a steam generator |
| CN201173364Y (en) * | 2008-03-27 | 2008-12-31 | 苏增军 | Umbrella type tube plug |
| CN201228832Y (en) * | 2008-06-06 | 2009-04-29 | 王富远 | Manual wheel for winding adhesive tape |
| CN101725828B (en) * | 2008-10-28 | 2011-06-22 | 金雹峰 | Leak stoppage guiding device of liquid chlorine tank |
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