CN103174907A - Pipeline built-in sealing device - Google Patents

Pipeline built-in sealing device Download PDF

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Publication number
CN103174907A
CN103174907A CN2013100928010A CN201310092801A CN103174907A CN 103174907 A CN103174907 A CN 103174907A CN 2013100928010 A CN2013100928010 A CN 2013100928010A CN 201310092801 A CN201310092801 A CN 201310092801A CN 103174907 A CN103174907 A CN 103174907A
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CN
China
Prior art keywords
plugging plate
built
locking device
pipeline
ring
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Granted
Application number
CN2013100928010A
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Chinese (zh)
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CN103174907B (en
Inventor
王淑保
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China Huaye Group Co Ltd
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China Huaye Group Co Ltd
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Priority to CN201310092801.0A priority Critical patent/CN103174907B/en
Publication of CN103174907A publication Critical patent/CN103174907A/en
Application granted granted Critical
Publication of CN103174907B publication Critical patent/CN103174907B/en
Active legal-status Critical Current
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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

The built in pipeline locking device
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 the Direct-Buried Heating Pipeline work progress in, when every day, construction finished, all need the end of channelling is sealed temporarily, enter in pipeline because various fortuitous events cause foreign material, rainwater or toy etc. 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 the 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 this method, not only weld and very easily damage when removing blind plate tube wall, and welding and the process of removing more complicated all, inefficiency.And the blind plate after removing can not be reused, and causes great goods and materials waste, and construction cost is high.
Summary of the invention
in order to solve the easy damage tube wall in welding and dismounting blind plate process that exists in prior art, construction is complicated, ineffective technical problem, can not reuse in order to solve in prior art blind plate simultaneously, thereby cause the 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 to weld the sealing that just can realize pipe end, avoided in the process of closed conduct end the damage to tube wall, and this built in pipeline locking device is made simple, easy to loading and unloading, good sealing effect, can reuse after dismounting, reduced construction cost.
To achieve these goals, the invention provides a kind of built in pipeline locking device, comprise plugging plate, its center has the hole, is provided with rolling bearing in the 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 an end of the other end and outside thread center-pole is connected, and the 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; Be provided with rubber seal on the rigidity semi-ring;
Also be provided with flexible rod on described plugging plate, it is fixedly connected with plugging plate by connecting end, and the other end and rigidity semi-ring are hinged; Also be provided with retaining ring on described plugging plate, be used for flexible rod is limited in the plugging plate plane and move.
Preferably, described built in pipeline locking device also is provided with two connecting rod I, an end and the outside thread center-pole of these two connecting rod I are hinged, the other end is provided with the 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 that is fixed on plugging plate.
Preferably, described rubber seal is two half-turns.
Preferably, on described plugging plate, the circumference of the another side opposite with flexible rod is installed is provided with catch.
Preferential, the material of described catch is rubber.
Preferential, the slewing gear of described inner thread sleeve one end setting is interior six square toes.
Preferably, be provided with handle on another side opposite on described plugging plate, with flexible rod is installed.
Preferably, mutually be provided with spring between flexible two-part that connect at described flexible rod.
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 to weld the sealing that just can realize pipe end, avoided in the process of closed conduct the damage to tube wall, and this built in pipeline locking device is made simple, easy to loading and unloading, good sealing effect, can reuse after dismounting, reduce construction cost.
Description of drawings
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 end; 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; 11. interior six square toes; 12. inclined-plane sealing head;
13. sealing head fixed cover; 14. pipeline; 15. spring
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 the hole, be provided with rolling bearing 10 in the hole, 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, six square toes 11 in this slewing gear is preferred 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.The end of the other end of outside thread center-pole 8 and connecting rod II62 is hinged.
An end and the outside thread center-pole 8 of connecting rod II62 are hinged, and the other end and rigidity semi-ring 5 are hinged; Be provided with rubber seal 7 on rigidity semi-ring 5.In the present embodiment, connecting rod II62 preferably is set to four, is distributed on two rigidity semi-rings 5.
As shown in Figure 1, also be provided with flexible rod 3 on described plugging plate 1, 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 break away from inner-walls of duct together with rubber seal 7.As shown in Figure 1, in the present embodiment, be symmetrically arranged with four flexible rods 3 on plugging plate 1.
As shown in Figure 5, also be provided with retaining ring 4 on plugging plate 1, be used for flexible rod 3 is limited in fore and aft motion in plugging plate 1 plane.Hinged due to flexible rod 3 and rigidity semi-ring 5, rigidity semi-ring 5 is hinged with the end of connecting rod II62, therefore, retaining ring 4 also can be limited in plugging plate 1 plane with rigidity semi-ring 5 and with the rounded end of the hinged connecting rod II62 of rigidity semi-ring 5 and move, thereby realizes the sealing function of this built in pipeline locking device.
As shown in Figure 2, be provided with handle 101 on another side opposite on plugging plate 1, with flexible rod 3 is installed, the convenient gripping when carrying out the pipe sealing operation.Circumference place at the plugging plate 1 of this face also is provided with catch 2, and catch 2 stretches out plugging plate 1 circumference certain distance.Due to the diameter of shut 1 diameter less than pipeline, after this built in pipeline locking device installation, also there are certain gap in the circumference of shut 1 and pipeline, and this catch 2 can avoid fixing foreign material to enter gap between plugging plate 1 and pipeline.The material of catch 2 should have certain elasticity and hardness, and in the present embodiment, preferred 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 the hole, be provided with rolling bearing 10 in the hole, 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, six square toes 11 in this slewing gear is preferred 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.The end of the other end of outside thread center-pole 8 and connecting rod II62 is hinged.
An end and the outside thread center-pole 8 of connecting rod II62 are hinged, and the other end and rigidity semi-ring 5 are hinged; Be provided with rubber seal 7 on rigidity semi-ring 5.In the present embodiment, connecting rod II62 preferably is 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 also is provided with two connecting rod I61, and an end and the outside thread center-pole 8 of these two connecting rod I61 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 is pressed on rubber seal 7 on inner-walls of duct simultaneously in order to the gap between two rigidity semi-rings 5 of shutoff, 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, also be provided with flexible rod 3 on described plugging plate 1, 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 break away from inner-walls of duct together with rubber seal 7.As shown in Figure 1, in the present embodiment, be symmetrically arranged with four flexible rods 3 on plugging plate 1.
As shown in Figure 5, also be provided with retaining ring 4 on plugging plate 1, be used for flexible rod 3 is limited in fore and aft motion in plugging plate 1 plane.Hinged due to flexible rod 3 and rigidity semi-ring 5, rigidity semi-ring 5 is hinged with the end of connecting rod II62, therefore, retaining ring 4 also can be limited in plugging plate 1 plane with rigidity semi-ring 5 and with the rounded end of the hinged connecting rod II62 of rigidity semi-ring 5 and move, thereby realizes the sealing function of this built in pipeline locking device.
As shown in Figure 2, be provided with handle 101 on another side opposite on plugging plate 1, with flexible rod 3 is installed, the convenient gripping when carrying out the pipe sealing operation.Circumference place at the plugging plate 1 of this face also is provided with catch 2, and catch 2 stretches out plugging plate 1 circumference certain distance.Due to the diameter of shut 1 diameter less than pipeline, after this built in pipeline locking device installation, also there are certain gap in the circumference of shut 1 and pipeline, and this catch 2 can avoid fixing foreign material to enter gap between plugging plate 1 and pipeline.The material of catch 2 should have certain elasticity and hardness, and in the present embodiment, preferred 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 the hole, be provided with rolling bearing 10 in the hole, 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, six square toes 11 in this slewing gear is preferred 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.The end of the other end of outside thread center-pole 8 and connecting rod II62 is hinged.
An end and the outside thread center-pole 8 of connecting rod II62 are hinged, and the other end and rigidity semi-ring 5 are hinged; Be provided with rubber seal 7 on rigidity semi-ring 5.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 preferably is 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 also is provided with two connecting rod I61, and an end and the outside thread center-pole 8 of these two connecting rod I61 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 is guaranteed this locking device sealing in order to the gap between two rigidity semi-rings 5 of shutoff and two semicircle rubber seal 7.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.
Further introduce the using process of built in pipeline locking device of the present invention below in conjunction with Figure of description.
As depicted in figs. 1 and 2, when using built in pipeline locking device of the present invention to carry out the pipe end " locked in " operation, catch handle 101 this built in pipeline locking device to be filled in the end of pipeline 14 with hand, allen wrench is filled in interior six square toes of plugging plate center inner thread sleeve 9 11, rotating spanner drives inner thread sleeve 9 and rotates.Because outside thread center-pole 8 is connected by screw-thread fit with inner thread sleeve 9, when inner thread sleeve 9 rotated, outside thread center-pole 8 moved axially along inner thread sleeve 9, and namely 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, will push 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 will be 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, with this breach sealing.So far, the gap between plugging plate 1 and pipeline is sealed fully by rubber seal 7 and inclined-plane sealing head 12.
Due to the diameter of shut 1 less than the diameter of channelling, after this built in pipeline locking device installation, also there are certain gap in the circumference of shut 1 and pipeline, and the catch 2 that is arranged at shut 1 circumference place can cover this gap, and avoiding fixedly, foreign material enter the gap.
Before continuing pipeline construction, when needing this built in pipeline locking device is pulled down, use the 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, namely moves to the direction away from plugging plate 1.Outside under the effect of thread center's bar 8, connecting rod II62 will be hinged with it two rigidity semi-rings 5 pull together with the center of rubber seal 7 to plugging plate 1, flexible rod 3 shrinks under the effect of spring 15, also pulls rigidity semi-ring 5 simultaneously, finally makes rubber seal 7 break away 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 to weld the sealing that just can realize pipe end, avoided in the process of closed conduct the damage to tube wall, and this built in pipeline locking device is made simple, easy to loading and unloading, good sealing effect, can reuse after dismounting, reduce construction cost.
The above only is the better embodiment of the present invention; but protection scope of the present invention is not limited to this; those skilled in the art belong to the scope of protection of the invention not making all other embodiments that obtain under the creative work prerequisite.

Claims (10)

1. built in pipeline locking device, it is characterized in that: comprise plugging plate (1), its center has the hole, is provided with rolling bearing (10) in the 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 an end of the other end and outside thread center-pole (8) is connected, the other end of outside thread center-pole (8) and connecting rod II(62) an end hinged; Connecting rod II(62) the other end and rigidity semi-ring (5) are hinged; Be provided with rubber seal (7) on rigidity semi-ring (5);
Also be provided with flexible rod (3) on described plugging plate (1), it is fixedly connected with plugging plate (1) by connecting end (31), and the other end and rigidity semi-ring (5) are hinged; Also be provided with retaining ring (4) on described plugging plate (1), be used for flexible rod (3) is limited in plugging plate (1) plane and move.
2. built in pipeline locking device according to claim 1, it is characterized in that: described built in pipeline locking device also is provided with two connecting rod I(61), these two connecting rod I(61) an end 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) that is fixed on plugging plate (1).
3. built in pipeline locking device according to claim 2, it is characterized in that: described rubber seal (7) is two half-turns.
4. according to claim 1-3 described built in pipeline locking devices of any one is characterized in that: the circumference at upper, opposite with installation flexible rod (3) another side of described plugging plate (1) is provided with catch (2).
5. built in pipeline locking device according to claim 4, it is characterized in that: the material of described catch (2) is rubber.
6. built in pipeline locking device according to claim 1, it is characterized in that: the slewing gear of described inner thread sleeve (9) one end settings is interior six square toes (11).
7. built in pipeline locking device according to claim 1, is characterized in that: be provided with handle (101) on upper at described plugging plate (1), opposite with flexible rod (3) is installed another side.
8. built in pipeline locking device according to claim 1, is characterized in that: mutually be provided with spring (15) between flexible two-part that connect at described flexible rod (3).
9. built in pipeline locking device according to claim 1, is characterized in that: described connecting rod II(62) be provided with four.
10. built in pipeline locking device according to claim 1, it is characterized in that: described flexible rod (3) is provided with four.
CN201310092801.0A 2013-03-21 2013-03-21 Pipeline built-in sealing device Active CN103174907B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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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

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CN103174907A true CN103174907A (en) 2013-06-26
CN103174907B CN103174907B (en) 2014-11-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104455905A (en) * 2014-12-02 2015-03-25 安徽工程大学 Plug device
CN110307436A (en) * 2019-07-11 2019-10-08 周纯 A kind of PVC pipeline tail portion end-sealing device

Citations (7)

* Cited by examiner, † Cited by third party
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
EP0343552A2 (en) * 1988-05-27 1989-11-29 Trumpf GmbH & Co Stamping machine with an exchangeable punching tool and work piece advance
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
CN101725828A (en) * 2008-10-28 2010-06-09 金雹峰 Leak stoppage guiding device of liquid chlorine tank

Patent Citations (7)

* Cited by examiner, † Cited by third party
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
EP0343552A2 (en) * 1988-05-27 1989-11-29 Trumpf GmbH & Co Stamping machine with an exchangeable punching tool and work piece advance
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
CN101725828A (en) * 2008-10-28 2010-06-09 金雹峰 Leak stoppage guiding device of liquid chlorine tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104455905A (en) * 2014-12-02 2015-03-25 安徽工程大学 Plug device
CN110307436A (en) * 2019-07-11 2019-10-08 周纯 A kind of PVC pipeline tail portion end-sealing device
CN110307436B (en) * 2019-07-11 2021-06-04 周纯 PVC pipeline afterbody head device

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