CN102506252B - Pipeline extension sleeve sealing structure - Google Patents
Pipeline extension sleeve sealing structure Download PDFInfo
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- CN102506252B CN102506252B CN 201110279616 CN201110279616A CN102506252B CN 102506252 B CN102506252 B CN 102506252B CN 201110279616 CN201110279616 CN 201110279616 CN 201110279616 A CN201110279616 A CN 201110279616A CN 102506252 B CN102506252 B CN 102506252B
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Abstract
The invention discloses a pipeline extension sleeve sealing structure, which is used for butting pipelines and is capable of not only absorbing vibration, but also ensuring the sealing performance of the pipelines. The pipeline extension sleeve sealing structure comprises a first pipeline, a second pipeline, a sleeve, a first gland and a second gland, the first gland and the second gland are arranged at two ends of the sleeve, a first Y-shaped sealing ring and a first V-shaped elastic washer are sequentially arranged between the first gland and the sleeve, and a second Y-shaped sealing ring and a second V-shaped elastic washer are sequentially arranged between the second gland and the sleeve. The vibration can be absorbed by the aid of elasticity of the first V-shaped elastic washer and the second V-shaped elastic washer, and the sealing performance of the pipelines can be enhanced at higher fluid pressure by increasing a Y-shaped included angle formed between the first Y-shaped sealing ring and the second Y-shaped sealing ring. In addition, when alignment of the first pipeline and the second pipeline has a little deviation, the excellent sealing performance can still be ensured, and the pipeline extension sleeve sealing structure is particularly suitable for popularization and application to sealing connection of two pipelines in butt joint.
Description
Technical field
The present invention relates to a kind of sealing configuration, be specifically related to a kind of pipeline extension sleeve sealing structure that uses at the docking pipeline.
Background technique
At present, low pressure (less than 2Mpa) Mass flow system in, the use telescopic cover mounting type that pump discharge end arm and connecting of main pipe are more.Its objective is and utilize telescopic cover to eliminate the vibration that pump working and fluid produce, and the mounting point can guarantee to overhaul water pump the time.Rectangular seal is used in used telescopic cover sealing.There are the following problems for this kind structure and sealing means:
1), rectangular seal will guarantee that sealability must compress rectangular seal with the two ends gland, but the elastic performance after rectangular seal compresses descends, and can cause the absorbing hydraulic performance decline to pipeline.Just compare contradiction so will guarantee simultaneously the sealability of pipeline and the vibration of extraction duct.
2) wear extent that, the rectangular seal of this kind structure can not the automatic compensation sealing circle goes to guarantee that sealability does not descend.And rectangular seal is relatively more responsive to the alignment degree of two ends pipeline when mounted, occurs easily crooked in compaction process and affects sealability.
Summary of the invention
Technical problem to be solved by this invention provides a kind of pipeline extension sleeve sealing structure that can absorbing can guarantee again the seal for pipe joints performance.
The technical solution adopted for the present invention to solve the technical problems is: pipeline extension sleeve sealing structure, the first pipeline and the second pipe that comprise mutual docking, outside the first pipeline and second pipe, be movably installed with sleeve, be respectively arranged with the first gland and the second gland at the two ends of sleeve, described the first gland is fixedly set in outside the first pipeline, the second gland is fixedly set in outside the second pipe, the first y-type seal ring and the first V-type elastic washer between the first gland and sleeve, have been disposed in order, described the first V-type elastic washer be engaged in the Y type mouth of the first y-type seal ring and the Y type mouth of the V-type mouth of the first V-type elastic washer and the first y-type seal ring all towards sleeve, the lip limit of the first y-type seal ring is sealed and matched between the inwall of the outer wall of the first pipeline and sleeve; The second y-type seal ring and the second V-type elastic washer between the second gland and sleeve, have been disposed in order, described the second V-type elastic washer be engaged in the Y type mouth of the second y-type seal ring and the Y type mouth of the V-type mouth of the second V-type elastic washer and the second y-type seal ring all towards sleeve, the lip limit of the second y-type seal ring is sealed and matched between the inwall of the outer wall of second pipe and sleeve.
Further be, between the first V-type elastic washer and the first gland, be provided with the first tension adjusting element, described the first tension adjusting element is connected on the first gland pass the Y type mouth, the first y-type seal ring of the first V-type elastic washer, the first y-type seal ring from the V-type mouth of the first V-type elastic washer after, the v-angle α 1 of the first V-type elastic washer is greater than the Y type angle β 1 of the first y-type seal ring, and on the tension direction of the first tension adjusting element, has space D 1 between the first V-type elastic washer and the first y-type seal ring; Between the second V-type elastic washer and the second gland, be provided with the second tension adjusting element, described the second tension adjusting element is connected on the second gland pass the Y type mouth, the second y-type seal ring of the second V-type elastic washer, the second y-type seal ring from the V-type mouth of the second V-type elastic washer after, the v-angle α 2 of the second V-type elastic washer is greater than the Y type angle β 2 of the second y-type seal ring, and on the tension direction of the second tension adjusting element, has space D 2 between the second V-type elastic washer and the second y-type seal ring.
As preferred technological scheme, described the first tension adjusting element is the first attachment bolt, and the first gland, the first y-type seal ring, the first V-type elastic washer are arranged sequentially between the outer end nut and interior end nut of the first attachment bolt; Described the second tension adjusting element is the second attachment bolt, and the second gland, the second y-type seal ring, the second V-type elastic washer are arranged sequentially between the outer end nut and interior end nut of the second attachment bolt.
Further be, between the first attachment bolt and the first V-type elastic washer, be provided with an O RunddichtringO, between the second attachment bolt and the second V-type elastic washer, be provided with the 2nd O RunddichtringO.
Further be between the outer end nut of the first attachment bolt and the first gland, to be provided with the first resilient compressible member; Between the outer end nut of the second attachment bolt and the second gland, be provided with the second resilient compressible member.
As preferred technological scheme, described the first y-type seal ring, the second y-type seal ring adopt nitrile rubber or butyl rubber to make, and described the first V-type elastic washer, the second V-type elastic washer adopt stainless steel material to make.
Further be that described the first gland is fixedly set in outside the first pipeline by a plurality of the first Cock screws; Described the second gland is fixedly set in outside the second pipe by a plurality of the second Cock screws.
The invention has the beneficial effects as follows: during work, when pipeline produces vibration, can utilize the elasticity of the first V-type elastic washer and the second V-type elastic washer to absorb vibration; Simultaneously, can utilize the first y-type seal ring, the second y-type seal ring the increase function of Y type angle, in the larger situation of hydrodynamic pressure, realize that the sealability of pipeline strengthens; In addition, can utilize the elastic pressure of the first V-type elastic washer and the second V-type elastic washer, when the alignment degree of the first pipeline and second pipe has a little deviation, still can guarantee to have good sealability, during connecting, the seal for pipe joints that is particluarly suitable for two docking applies.
Description of drawings
Fig. 1 is pipeline extension sleeve sealing structure schematic representation of the prior art;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the local structure for amplifying schematic representation at A place among Fig. 2;
Fig. 4 is the local structure for amplifying schematic representation at B place among Fig. 2;
Fig. 5 is the structural representation of the first V-type elastic washer among Fig. 2;
Fig. 6 is the structural representation of the second V-type elastic washer among Fig. 2;
Fig. 7 is the structural representation of the first y-type seal ring among Fig. 2;
Fig. 8 is the structural representation of the second y-type seal ring among Fig. 2.
Be labeled as among the figure: the first pipeline 1, second pipe 2, sleeve 3, the first gland 4, the second gland 5, the first y-type seal ring 6, the first V-type elastic washer 7, the second y-type seal ring 8, the second V-type elastic washer 9, Y type mouth 10, V-type mouth 11, Y type mouth 12, V-type mouth 13, the first attachment bolt 14, the second attachment bolt 15, outer end nut 16, the first resilient compressible member 17, outer end nut 18, the second resilient compressible member 19, interior end nut 20, interior end nut 21, the first Cock screw 22, the second Cock screw 23, the one O RunddichtringO 24, the 2nd O RunddichtringO 25.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Extremely shown in Figure 8 such as Fig. 2, pipeline extension sleeve sealing structure of the present invention, the first pipeline 1 and second pipe 2 that comprises mutual docking, outside the first pipeline 1 and second pipe 2, be movably installed with sleeve 3, be respectively arranged with the first gland 4 and the second gland 5 at the two ends of sleeve 3, described the first gland 4 is fixedly set in outside the first pipeline 1, the second gland 5 is fixedly set in outside the second pipe 2, the first y-type seal ring 6 and the first V-type elastic washer 7 between the first gland 4 and sleeve 3, have been disposed in order, described the first V-type elastic washer 7 is engaged in the Y type mouth 10 of the first y-type seal ring 6 and the Y type mouth 10 of the V-type mouth 11 of the first V-type elastic washer 7 and the first y-type seal ring 6 all is sealed and matched between the inwall of the outer wall of the first pipeline 1 and sleeve 3 towards the lip limit of sleeve 3, the first y-type seal rings 6; The second y-type seal ring 8 and the second V-type elastic washer 9 between the second gland 5 and sleeve 3, have been disposed in order, described the second V-type elastic washer 9 is engaged in the Y type mouth 12 of the second y-type seal ring 8 and the Y type mouth 12 of the V-type mouth 13 of the second V-type elastic washer 9 and the second y-type seal ring 8 all is sealed and matched between the inwall of the outer wall of second pipe 2 and sleeve 3 towards the lip limit of sleeve 3, the second y-type seal rings 8.During work, when pipeline produces vibration, can utilize the elasticity of the first V-type elastic washer 7 and the second V-type elastic washer 9 to absorb vibration.In addition, because the lip limit of the first y-type seal ring 6 is sealed and matched between the inwall of the outer wall of the first pipeline 1 and sleeve 3 and the Y type mouth 10 of the first y-type seal ring 6 towards sleeve 3, the lip limit of the second y-type seal ring 8 be sealed and matched between the inwall of the outer wall of second pipe 2 and sleeve 3 and the Y type mouth 12 of the second y-type seal ring 8 towards sleeve 3, when the hydrodynamic pressure between the first pipeline 1 and the second pipe 2 raises, the Y type mouth 10 of the first y-type seal ring 6 and the Y type mouth of the second y-type seal ring 8 12 can make along with the rising of hydrodynamic pressure the angle of opening increase, thus can be when hydrodynamic pressure raises the enhanced leaktightness performance.Secondly, because it is consistent that the first V-type elastic washer 7 is engaged in Y type mouth 10 Y type mouth 12 opening directions interior and V-type mouth 13 and Y type mouth 12 interior and that V-type mouth 11 is consistent with the opening direction of Y type mouth 10, the second V-type elastic washer 9 cooperates the second y-type seal ring 8 of the first y-type seal ring 6, can utilize the elastic pressure of the first V-type elastic washer 7,9 pairs of the first y-type seal rings 6 of the second V-type elastic washer, the second y-type seal ring 8, when the alignment degree of the first pipeline 1 and second pipe 2 has a little deviation, still can guarantee to have good sealability.
On the basis of above-mentioned mode of execution, when the first y-type seal ring 6, the second y-type seal ring 8 in use for some time, unavoidably cause wearing and tearing, like this, will cause the first y-type seal ring 6 and the first pipeline 1, form the gap between the sleeve 3, the second y-type seal ring 8 and second pipe 2, form the gap between the sleeve 3, cause the fluid leakage in the first pipeline 1 and the second pipe 2, therefore, in order to prevent the first y-type seal ring 6, form after 8 wearing and tearing of the second y-type seal ring and reveal, between the first V-type elastic washer 7 and the first gland 4, be provided with the first tension adjusting element, described the first tension adjusting element passes the first V-type elastic washer 7 from the V-type mouth 11 of the first V-type elastic washer 7, the Y type mouth 10 of the first y-type seal ring 6, be connected on the first gland 4 behind the first y-type seal ring 6, the v-angle α 1 of the first V-type elastic washer 7 is greater than the Y type angle β 1 of the first y-type seal ring 6, and on the tension direction of the first tension adjusting element, has space D 1 between the first V-type elastic washer 7 and the first y-type seal ring 6; Between the second V-type elastic washer 9 and the second gland 5, be provided with the second tension adjusting element, described the second tension adjusting element is connected on the second gland 5 pass the Y type mouth 12, the second y-type seal ring 8 of the second V-type elastic washer 9, the second y-type seal ring 8 from the V-type mouth 13 of the second V-type elastic washer 9 after, the v-angle α 2 of the second V-type elastic washer 9 is greater than the Y type angle β 2 of the second y-type seal ring 8, and on the tension direction of the second tension adjusting element, has space D 2 between the second V-type elastic washer 9 and the second y-type seal ring 8.After wearing and tearing appear in the first y-type seal ring 6, the second y-type seal ring 8, by the first tension adjusting element the direction of the first V-type elastic washer 7 toward the first gland 4 spurred, so that the Y type mouth 10 of the first y-type seal ring 6 increases angle (even β 1 increases) under the effect of the first V-type elastic washer 7, thereby guarantee that the lip limit of the first y-type seal ring 6 and the outer wall of the first pipeline 1 and the inwall of sleeve 3 form sealing, avoid causing leakage.Same, when wearing and tearing appear in the second y-type seal ring 8, also adopt same operation to guarantee sealing, namely by the second tension adjusting element the direction of the second V-type elastic washer 9 toward the second gland 5 spurred, so that the Y type mouth 12 of the second y-type seal ring 8 increases angle (even β 2 increases) under the effect of the second V-type elastic washer 9, thereby guarantee that the lip limit of the second y-type seal ring 8 and the outer wall of second pipe 2 and the inwall of sleeve 3 form sealing.Wherein, the v-angle α 1 of the first V-type elastic washer 7 is greater than the Y type angle β 1 of the first y-type seal ring 6, and the v-angle α 2 of the second V-type elastic washer 9 all is can guarantee that the Y type angle β 1 of the first y-type seal ring 6, the Y type angle β 2 of the second y-type seal ring 8 can constantly increase in order to guarantee when pulling the first V-type elastic washer 7, the second V-type elastic washer 9 greater than the Y type angle β 2 of the second y-type seal ring 8.And has space D 1 between the first V-type elastic washer 7 and the first y-type seal ring 6, has space D 2 between the second V-type elastic washer 9 and the second y-type seal ring 8, in order to guarantee that the first V-type elastic washer 7, the second V-type elastic washer 9 have mobile space when spurring the first V-type elastic washer 7, the second V-type elastic washer 9.
In the above-described embodiment, the first tension adjusting element, the second tension adjusting element all can adopt wire rope or steel wire to make, when the first y-type seal ring 6, when wearing and tearing appear in the second y-type seal ring 8, the first V-type elastic washer 7, the second V-type elastic washer 9 can be spurred toward the direction of the first gland 4, the second gland 5 respectively by pulling wire rope or steel wire; Or the first tension adjusting element, the second tension adjusting element adopt the driven by motor chain to realize that the first V-type elastic washer 7, the second V-type elastic washer 9 are respectively toward the direction pulling of the first gland 4, the second gland 5.As preferred mode:
Described the first tension adjusting element is that the first attachment bolt 14, the first glands 4, the first y-type seal ring 6, the first V-type elastic washer 7 are arranged sequentially between the outer end nut 16 and interior end nut 20 of the first attachment bolt 14; Described the second tension adjusting element is that the second attachment bolt 15, the second glands 5, the second y-type seal ring 8, the second V-type elastic washer 9 are arranged sequentially between the outer end nut 18 and interior end nut 21 of the second attachment bolt 15.Like this, when the first y-type seal ring 6, when wearing and tearing appear in the second y-type seal ring 8, can spur the first V-type elastic washer 7, the second V-type elastic washer 9 respectively toward the direction motion of the first gland 4, the second gland 5 by the outer end nut 16 of turn the first attachment bolt 14, the outer end nut 18 of the second attachment bolt 15, realize that the Y type angle β 1 of the first y-type seal ring 6, the Y type angle β 2 of the second y-type seal ring 8 increase the formation sealing.This is simple in structure, and is easy to operate.
When the first attachment bolt 14, when the second attachment bolt 15 passes respectively the first V-type elastic washer 7, the second V-type elastic washer 9, for preventing that the gap between gap, the second attachment bolt 15 and the second V-type elastic washer 9 between the first attachment bolt 14 and the first V-type elastic washer 7 from forming leakage, as shown in Figure 3 and Figure 4, between the first attachment bolt 14 and the first V-type elastic washer 7, be provided with an O RunddichtringO 24, between the second attachment bolt 15 and the second V-type elastic washer 9, be provided with the 2nd O RunddichtringO 25.
For in the situation of the outer end nut 18 of the outer end nut 16 of not turn the first attachment bolt 14, the second attachment bolt 15, also can realize the automatic motion of the first V-type elastic washer 7, the second V-type elastic washer 9 and increase the Y type angle β 1 of the first y-type seal ring 6, the Y type angle β 2 of the second y-type seal ring 8, between the outer end nut 16 of the first attachment bolt 14 and the first gland 4, be provided with the first resilient compressible member 17; Between the outer end nut 18 of the second attachment bolt 15 and the second gland 5, be provided with the second resilient compressible member 19.Like this, when the inwall that the outer wall of wearing and tearing and the first pipeline 1 and sleeve 3 occur when the first y-type seal ring 6 forms the gap, owing to be provided with the first resilient compressible member 17 between the outer end nut 16 of the first attachment bolt 14 and the first gland 4, can make by the elastic force of the first resilient compressible member 17 the first attachment bolt 14 outward movment, thereby automatically spur the Y type angle β 1 that the first V-type elastic washer 7 increases the first y-type seal ring 6, thereby realize the auto-compensation in gap, guarantee to form between the inwall of the outer wall of the first y-type seal ring 6 and the first pipeline 1 and sleeve 3 and seal.Equally, when wearing and tearing appear in the second y-type seal ring 8, also can realize by the second resilient compressible member 19 auto-compensation of the second y-type seal ring 8 and second pipe 2 and sleeve 3 gaps.And when the elastic force deficiency of the first resilient compressible member 17, the second resilient compressible member 19, can also realize the compensation in gaps by the outer end nut 16 of turn the first attachment bolt 14, the outer end nut 18 of the second attachment bolt 15.Arranging of the first resilient compressible member 17, the second resilient compressible member 19 mainly is in order to realize when the first y-type seal ring 6, when wearing and tearing appear in the second y-type seal ring 8, realize the auto-compensation in gap, the first resilient compressible member 17, the second resilient compressible member 19 can adopt elastic caoutchouc, spring etc. to make and form.
In the above embodiment, the first y-type seal ring 6, the second y-type seal ring 8 can adopt the making such as plastics, metallic material, the first V-type elastic washer 7, the second V-type elastic washer 9 also can adopt the materials such as plastics, metal to make, and as preferred mode, described the first y-type seal ring 6, the second y-type seal ring 8 adopt nitrile rubber or butyl rubber to make, and described the first V-type elastic washer 7, the second V-type elastic washer 9 adopt stainless steel material to make.The first y-type seal ring 6, the second y-type seal ring 8 are selected nitrile rubber or butyl rubber, and these two kinds of quality of rubber materials are hydrolysis resistance all, is applicable to the sealing of aqueous medium.The first V-type elastic washer 7, the second V-type elastic washer 9 are selected stainless steel material, and one can guarantee to apply enough lasting sealing force to the sealing surface of the first y-type seal ring 6, the second y-type seal ring 8; Its two owing to be to be operated in the aqueous medium, can prevent corrosion, increase the service life.In addition, the first V-type elastic washer 7, the second V-type elastic washer 9 are preferably selected the spring stainless steel material, are 1Cr18Ni9 such as material trademark; The stainless steel of 0Cr18Ni10.
In the above embodiment, the first gland 4 is fixedly set in the first pipeline 1 outer mode can adopt welding, be threaded etc., it also is to adopt welding that the second gland 5 is fixedly set in second pipe 2 outer modes, the mode such as be threaded realizes, as preferred mode, described the first gland 4 is fixedly set in outside the first pipeline 1 by a plurality of the first Cock screws 22; Described the second gland 5 is fixedly set in outside the second pipe 2 by a plurality of the second Cock screws 23.Namely the first gland 4 is fixed on the first gland 4 on the first pipeline 1 by the head of the first Cock screw 22 and the frictional force between the first pipeline 1 outer wall, the second gland 5 is fixed on the second gland 5 on the second pipe 2 by the head of the second Cock screw 23 and the frictional force between second pipe 2 outer walls, can be convenient to detachable maintaining and replacing.
Claims (7)
1. pipeline extension sleeve sealing structure, the first pipeline (1) and second pipe (2) that comprise mutual docking, outside the first pipeline (1) and second pipe (2), be movably installed with sleeve (3), be respectively arranged with the first gland (4) and the second gland (5) at the two ends of sleeve (3), described the first gland (4) is fixedly set in outside the first pipeline (1), the second gland (5) is fixedly set in outside the second pipe (2), it is characterized in that: between the first gland (4) and sleeve (3), be disposed in order the first y-type seal ring (6) and the first V-type elastic washer (7), described the first V-type elastic washer (7) be engaged in the Y type mouth (10) of the first y-type seal ring (6) and the Y type mouth (10) of the V-type mouth (11) of the first V-type elastic washer (7) and the first y-type seal ring (6) all towards sleeve (3), the lip limit of the first y-type seal ring (6) is sealed and matched between the inwall of the outer wall of the first pipeline (1) and sleeve (3); The second y-type seal ring (8) and the second V-type elastic washer (9) between the second gland (5) and sleeve (3), have been disposed in order, described the second V-type elastic washer (9) be engaged in the Y type mouth (12) of the second y-type seal ring (8) and the Y type mouth (12) of the V-type mouth (13) of the second V-type elastic washer (9) and the second y-type seal ring (8) all towards sleeve (3), the lip limit of the second y-type seal ring (8) is sealed and matched between the inwall of the outer wall of second pipe (2) and sleeve (3).
2. pipeline extension sleeve sealing structure as claimed in claim 1, it is characterized in that: between the first V-type elastic washer (7) and the first gland (4), be provided with the first tension adjusting element, described the first tension adjusting element passes the first V-type elastic washer (7) from the V-type mouth (11) of the first V-type elastic washer (7), the Y type mouth (10) of the first y-type seal ring (6), be connected to behind the first y-type seal ring (6) on the first gland (4), the v-angle of the first V-type elastic washer (7) (α 1) is greater than the Y type angle (β 1) of the first y-type seal ring (6), and on the tension direction of the first tension adjusting element, has space D 1 between the first V-type elastic washer (7) and the first y-type seal ring (6); Between the second V-type elastic washer (9) and the second gland (5), be provided with the second tension adjusting element, described the second tension adjusting element passes the second V-type elastic washer (9) from the V-type mouth (13) of the second V-type elastic washer (9), the Y type mouth (12) of the second y-type seal ring (8), be connected to behind the second y-type seal ring (8) on the second gland (5), the v-angle of the second V-type elastic washer (9) (α 2) is greater than the Y type angle (β 2) of the second y-type seal ring (8), and on the tension direction of the second tension adjusting element, has space D 2 between the second V-type elastic washer (9) and the second y-type seal ring (8).
3. pipeline extension sleeve sealing structure as claimed in claim 2, it is characterized in that: described the first tension adjusting element is the first attachment bolt (14), and the first gland (4), the first y-type seal ring (6), the first V-type elastic washer (7) are arranged sequentially between the outer end nut (16) and interior end nut (20) of the first attachment bolt (14); Described the second tension adjusting element is the second attachment bolt (15), and the second gland (5), the second y-type seal ring (8), the second V-type elastic washer (9) are arranged sequentially between the outer end nut (18) and interior end nut (21) of the second attachment bolt (15).
4. pipeline extension sleeve sealing structure as claimed in claim 3, it is characterized in that: between the first attachment bolt (14) and the first V-type elastic washer (7), be provided with an O RunddichtringO (24), between the second attachment bolt (15) and the second V-type elastic washer (9), be provided with the 2nd O RunddichtringO (25).
5. pipeline extension sleeve sealing structure as claimed in claim 4 is characterized in that: be provided with the first resilient compressible member (17) between the outer end nut (16) of the first attachment bolt (14) and the first gland (4); Between the outer end nut (18) of the second attachment bolt (15) and the second gland (5), be provided with the second resilient compressible member (19).
6. the described pipeline extension sleeve sealing structure of any one claim in 5 according to claim 1, it is characterized in that: described the first y-type seal ring (6), the second y-type seal ring (8) adopt nitrile rubber or butyl rubber to make, and described the first V-type elastic washer (7), the second V-type elastic washer (9) adopt stainless steel material to make.
7. pipeline extension sleeve sealing structure as claimed in claim 6, it is characterized in that: described the first gland (4) is fixedly set in outside the first pipeline (1) by a plurality of the first Cock screws (22); Described the second gland (5) is fixedly set in outside the second pipe (2) by a plurality of the second Cock screws (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110279616 CN102506252B (en) | 2011-09-20 | 2011-09-20 | Pipeline extension sleeve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110279616 CN102506252B (en) | 2011-09-20 | 2011-09-20 | Pipeline extension sleeve sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102506252A CN102506252A (en) | 2012-06-20 |
| CN102506252B true CN102506252B (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110279616 Expired - Fee Related CN102506252B (en) | 2011-09-20 | 2011-09-20 | Pipeline extension sleeve sealing structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111720129B (en) * | 2020-05-28 | 2021-09-03 | 北京城建中南土木工程集团有限公司 | Shield steel sleeve sealing device and mounting method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018461A (en) * | 1974-10-22 | 1977-04-19 | Everitube | Sealed joint having a socket |
| CN2540543Y (en) * | 2002-05-27 | 2003-03-19 | 陈贞华 | Pipe fitting with spigot-and-socket quick connector |
| JP2008128279A (en) * | 2006-11-17 | 2008-06-05 | Hitachi Engineering & Services Co Ltd | Expansion union joint structure and fluid transfer pipe system using the same |
| CN101684875A (en) * | 2008-09-24 | 2010-03-31 | 卡特彼勒公司 | Connecting assembly, assembling method thereof and movable machine comprising same |
| JP2010112436A (en) * | 2008-11-05 | 2010-05-20 | Sayama Seisakusho:Kk | Expansion joint of multi-vessel type water storage tank |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0464473A (en) * | 1990-07-05 | 1992-02-28 | Matsushita Electric Ind Co Ltd | Printing press with eraser |
-
2011
- 2011-09-20 CN CN 201110279616 patent/CN102506252B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018461A (en) * | 1974-10-22 | 1977-04-19 | Everitube | Sealed joint having a socket |
| CN2540543Y (en) * | 2002-05-27 | 2003-03-19 | 陈贞华 | Pipe fitting with spigot-and-socket quick connector |
| JP2008128279A (en) * | 2006-11-17 | 2008-06-05 | Hitachi Engineering & Services Co Ltd | Expansion union joint structure and fluid transfer pipe system using the same |
| CN101684875A (en) * | 2008-09-24 | 2010-03-31 | 卡特彼勒公司 | Connecting assembly, assembling method thereof and movable machine comprising same |
| JP2010112436A (en) * | 2008-11-05 | 2010-05-20 | Sayama Seisakusho:Kk | Expansion joint of multi-vessel type water storage tank |
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| Publication number | Publication date |
|---|---|
| CN102506252A (en) | 2012-06-20 |
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