CN206221849U - Clamp-press type connector for pipeline and pipe-line system - Google Patents

Clamp-press type connector for pipeline and pipe-line system Download PDF

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Publication number
CN206221849U
CN206221849U CN201621318913.9U CN201621318913U CN206221849U CN 206221849 U CN206221849 U CN 206221849U CN 201621318913 U CN201621318913 U CN 201621318913U CN 206221849 U CN206221849 U CN 206221849U
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CN
China
Prior art keywords
groove
draw
clamp
pipeline
press type
Prior art date
Application number
CN201621318913.9U
Other languages
Chinese (zh)
Inventor
贺世云
李兵
杨小贵
周正富
卢鸿宇
Original Assignee
重庆工业设备安装集团有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 重庆工业设备安装集团有限公司 filed Critical 重庆工业设备安装集团有限公司
Priority to CN201621318913.9U priority Critical patent/CN206221849U/en
Application granted granted Critical
Publication of CN206221849U publication Critical patent/CN206221849U/en

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Abstract

A kind of clamp-press type connector for pipeline and pipe-line system, are related to pipe technology field.Clamp-press type connector for pipeline is made up of at least two housings, and it has column connecting cavity, and recessed the first draw-in groove and the second draw-in groove and the 3rd draw-in groove for card pressure seal ring for card pressure connecting tube of its inwall.First draw-in groove is located between the second draw-in groove and the 3rd draw-in groove;First draw-in groove, the second draw-in groove and the 3rd draw-in groove are recessed by inwall towards the axial line side away from connecting cavity.Clamp-press type connector for pipeline installs fast, convenient and safe with dismounting;Stable connection reliability.Pipe-line system includes above-mentioned clamp-press type connector for pipeline, and pipe-line system also includes connecting tube, and connecting tube at least one end has the connection end for being connected with clamp-press type connector for pipeline, and clamp-press type connector for pipeline is connected to two connection ends of connecting tube.The pipeline stable connection reliability of pipe-line system, seal for pipe joints is good, and assembling, dismounting are very convenient.

Description

Clamp-press type connector for pipeline and pipe-line system
Technical field
The utility model is related to pipe technology field, in particular to a kind of clamp-press type connector for pipeline and pipeline system System.
Background technology
Existing pipeline typically uses flange, loose joint or threaded connection.Connected using flange, flange is more big, the spiral shell for needing Bolt is more, and maintenance is very inconvenient with dismounting, and the part that flange connection needs is more, relatively costly.Using the connection of loose joint Mode needs certain space in maintenance or dismounting, and the pipeline that easily worn and torn in dismounting, and cost is also higher.Connected using screw thread The mode for connecing needs the problem in larger surplus space when equally existing maintenance with dismounting.
Welding connecting mode being used traditional pipeline, not only bad for dismounting or replacing, and in welding process very more Easily cause the torsional deformation of pipeline.
Utility model content
The purpose of this utility model is to provide a kind of clamp-press type connector for pipeline, its install it is quick and easy with dismounting, Safety;Stable connection reliability.
Another object of the present utility model is to provide a kind of pipe-line system, its pipeline stable connection reliability, seal for pipe joints Property it is good, assembling, dismantle it is very convenient.
What embodiment of the present utility model was realized in:
A kind of clamp-press type connector for pipeline, it is made up of at least two housings, and there is clamp-press type connector for pipeline column to connect Connect chamber, recessed the first draw-in groove for card pressure connecting tube of the inwall of clamp-press type connector for pipeline and for card pressure seal ring the Two draw-in groove and the 3rd draw-in groove, the first draw-in groove are located between the second draw-in groove and the 3rd draw-in groove;First draw-in groove, the second draw-in groove and the 3rd card Groove is recessed by inwall towards the axial line side away from connecting cavity.Clamp-press type connector for pipeline install with dismounting it is quick and easy, Safety;Stable connection reliability.
Further, the first draw-in groove, the second draw-in groove and the 3rd draw-in groove along clamp-press type connector for pipeline inwall circumference Set.
Further, the first draw-in groove, the second draw-in groove and the 3rd draw-in groove are along the radial depressions of connecting cavity.
Further, the first draw-in groove is located at the approximately mid way between the second draw-in groove and the 3rd draw-in groove.
Further, connecting cavity is in generally a cylindrical shape, and the first draw-in groove, the second draw-in groove and the 3rd draw-in groove three are in substantially It is circular.
Further, corresponding to the second draw-in groove the diameter of a circle corresponding to diameter of a circle and the 3rd draw-in groove is respectively less than first Diameter of a circle corresponding to draw-in groove.
Further, connector is made up of two housings, same as where the axial line of connecting cavity between two housings Individual plane segmentation, two housings are by bolt connection.
A kind of pipe-line system, it includes above-mentioned clamp-press type connector for pipeline, and pipe-line system also includes connecting tube, and connecting tube is extremely Few one end has the connection end for being connected with clamp-press type connector for pipeline, and clamp-press type connector for pipeline is connected to two connecting tubes Connection end.The pipeline stable connection reliability of pipe-line system, seal for pipe joints is good, and assembling, dismounting are very convenient.
Further, connection end has along the retaining wall of its circumferential projection, and retaining wall is placed in the of clamp-press type connector for pipeline One draw-in groove.
Further, pipe-line system also has sealing ring, and connection end also has along its circumferential recessed groove, and sealing ring holds It is placed in groove and while is placed in second draw-in groove or the 3rd draw-in groove of clamp-press type connector for pipeline.Clamp-press type connector for pipeline and company Connect end with sealing ring interference fit.
The beneficial effect of the utility model embodiment is:Clamp-press type connector for pipeline passes through to be provided for card pressure connecting tube First draw-in groove, enhances clamp-press type connector for pipeline to the connective stability of connecting tube and card Compressive Strength, can the effective company of preventing Adapter improves the connective stability and security of clamp-press type connector for pipeline from clamp-press type connector for pipeline abjection.Clamp-press type Conduit coupling is by being provided for second draw-in groove and the 3rd draw-in groove of card pressure seal ring so that sealing ring position stabilization and be difficult Shift, it is ensured that the sealing effectiveness that sealing ring is brought into normal play.Further, the first draw-in groove is located at the second draw-in groove and the 3rd draw-in groove Between approximately mid way between, be conducive to the pressure for receiving two sealing rings to tend to identical, prevent one of sealing ring from receiving Power it is excessive and occur sealing ring skew situation.Additionally, the second draw-in groove and the 3rd draw-in groove can increase sealing ring and clamp-press type pipe The contact area of pipe connecting, and then effective sealing area of sealing ring is increased, be conducive to improving the sealing effectiveness of sealing ring. Clamp-press type connector for pipeline is made up of at least two housings, is easily installed and dismantles, easy to use.Clamp-press type connector for pipeline is whole Body installs fast, convenient and safe with dismounting;Stable connection reliability.
Pipe-line system includes above-mentioned clamp-press type connector for pipeline, and the connecting tube of pipe-line system passes through clamp-press type connector for pipeline Connection, with very strong connective stability and security.The pipeline stable connection reliability of pipe-line system, seal for pipe joints is good, group Dress, dismounting are very convenient.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, below will be to be used needed for embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also Other related accompanying drawings are obtained with according to these accompanying drawings.
The schematic diagram of the connector that Fig. 1 is provided for the utility model embodiment;
Fig. 2 is sectional view of the connector in Fig. 1 along A-A;
Fig. 3 is the schematic diagram that the connector in Fig. 1 is connected with connecting tube;
Fig. 4 is the schematic diagram of the housing of composition connector in Fig. 1;
Fig. 5 is schematic diagram when connector is made up of three housings.
Icon:100- clamp-press type connector for pipeline;110- connecting cavities;120- inwalls;The draw-in grooves of 130- first;140- second blocks Groove;The draw-in grooves of 150- the 3rd;160- housings;170- bolts;200- connecting tubes;210- connection ends;211- retaining walls;212- grooves; 300- sealing rings;400- pipe-line systems.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally described in accompanying drawing herein and The component of the utility model embodiment for showing can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.
It should be noted that:Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
Term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively heavy The property wanted.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets Put ", " assembling ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, Or be integrally connected;Can mechanically connect, or electrically connect;Can be joined directly together, it is also possible to by intermediary It is indirectly connected to, can is two connections of element internal.For the ordinary skill in the art, can be managed with concrete condition Solve concrete meaning of the above-mentioned term in the utility model.
Embodiment
Fig. 1, Fig. 2 and Fig. 3 are refer to, the present embodiment provides a kind of clamp-press type connector for pipeline 100.Clamp-press type pipeline is connected Part 100 has the connecting cavity 110 being in the form of a column, and the inwall 120 of clamp-press type connector for pipeline 100 is recessed to press connecting tube 200 for card The first draw-in groove 130 and for the second draw-in groove 140 of card pressure seal ring 300 and the 3rd draw-in groove 150.First draw-in groove 130 is located at Between second draw-in groove 140 and the 3rd draw-in groove 150.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are refer to, further, clamp-press type connector for pipeline 100 is made up of two housings 160, Approximately the same plane segmentation between two housings 160 as where the axial line B-B of connecting cavity 110, two housings 160 are by bolt 170 connections.First draw-in groove 130, the second draw-in groove 140 and the 3rd draw-in groove 150 are by inwall 120 towards the axle center away from connecting cavity 110 Line B-B sides are recessed.
Clamp-press type connector for pipeline 100 is split as the approximately the same plane where two axial line B-B as connecting cavity 110 To housing 160 constitute so that clamp-press type connector for pipeline 100 does not need extra along connecting cavity 110 when mounting and dismounting The surplus space of axial direction, installation and removal are easily, fast.
Clamp-press type connector for pipeline 100 passes through to be provided for the first draw-in groove 130 that card presses connecting tube 200, enhances card pressure Formula conduit coupling 100 can effectively prevent connecting tube 200 from being pressed from card the connective stability and card Compressive Strength of connecting tube 200 Formula conduit coupling 100 is deviate from, and improves the connective stability and security of clamp-press type connector for pipeline 100.
Clamp-press type connector for pipeline 100 is by being provided for second draw-in groove 140 and the 3rd draw-in groove of card pressure seal ring 300 150 so that the position of sealing ring 300 is stable and is not susceptible to skew, it is ensured that the sealing effectiveness that sealing ring 300 is brought into normal play.
It should be noted that in other embodiment of the present utility model, clamp-press type connector for pipeline 100 can also be by The different housings composition of three or more, as shown in figure 5, but being not limited only to this.
Please continue to refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, further, in the present embodiment, connecting cavity 110 is in circle substantially Column.
Further, the first draw-in groove 130, the second draw-in groove 140 and the 3rd draw-in groove 150 are in annular shape substantially.First card Groove 130, the second draw-in groove 140 with the 3rd draw-in groove 150 along the circumferentially disposed of inwall 120, and the first draw-in groove 130, the second draw-in groove 140 It is parallel to each other between plane with the three of the 3rd draw-in groove 150 where each corresponding circle.First draw-in groove 130, the second draw-in groove 140 With the 3rd draw-in groove 150 along the radial depressions of connecting cavity 110.
First draw-in groove 130, the second draw-in groove 140 and the 3rd draw-in groove 150 are in substantially circular and along the week of inwall 120 To setting, card pressure effect of the clamp-press type connector for pipeline 100 to connecting tube 200 can be made to tend to homogenizing and increasing card pressure surface, Improve card pressure effect, connective stability and security of the enhancing clamp-press type connector for pipeline 100 to connecting tube 200.
It should be noted that in other embodiment of the present utility model, the first draw-in groove 130, the second draw-in groove 140 and the 3rd At least one of draw-in groove 150 can also be in square ring-type, the side's of the being similarly ring-type of corresponding sealing ring 300.
Further, in the present embodiment, the first draw-in groove 130 is located at big between the second draw-in groove 140 and the 3rd draw-in groove 150 Cause centre position.It is fluid less than or equal to 1.6MPa when clamp-press type connector for pipeline 100 is installed on for discharge pressure During system, the distance between the second draw-in groove 140 and the first draw-in groove 130 are substantially equal between the 3rd draw-in groove 150 and the first draw-in groove 130 Distance, can cause that the pressure suffered by two sealing rings 300 in the second draw-in groove 140 and both the 3rd draw-in grooves 150 tends to Balance.If the distance between the second draw-in groove 140 and the first draw-in groove 130 are with the distance between the 3rd draw-in groove 150 and the first draw-in groove 130 Difference it is excessive, because the fast part pressure of rate of flow of fluid is smaller, now both the second draw-in groove 140 and the 3rd draw-in groove 150 in It is possible that pressure differential between two sealing rings 300, if pressure differential is excessive, in fact it could happen that sealing ring 300 departs from second and blocks Groove 140 and/or the 3rd draw-in groove 150 and loss of seal effect.
Further, it is less than or equal to 1.6MPa's when clamp-press type connector for pipeline 100 is installed on for discharge pressure During the system of fluid, Fluid pressure is bigger, and the sealing effectiveness of sealing ring 300 is better.
Further, the diameter of a circle corresponding to the diameter of a circle and the 3rd draw-in groove 150 corresponding to the second draw-in groove 140 is small In the diameter of a circle corresponding to the first draw-in groove 130.
The operation principle of clamp-press type connector for pipeline 100 is:Clamp-press type connector for pipeline 100 presses company by being provided for card First draw-in groove 130 of adapter 200, enhances connective stability and card pressure of the clamp-press type connector for pipeline 100 to connecting tube 200 Degree, can effectively prevent connecting tube 200 from deviating from from clamp-press type connector for pipeline 100, improve clamp-press type connector for pipeline 100 Connective stability and security.Clamp-press type connector for pipeline 100 is by being provided for the second draw-in groove 140 of card pressure seal ring 300 With the 3rd draw-in groove 150 so that the position of sealing ring 300 is stable and is not susceptible to skew, it is ensured that the sealing that sealing ring 300 is brought into normal play Effect.
The present embodiment also provides a kind of pipe-line system 400.Pipe-line system 400 includes clamp-press type connector for pipeline 100, connection Pipe 200 and sealing ring 300.
Fig. 3 is referred to, specifically, connecting tube 200 has the connection end for being connected with clamp-press type connector for pipeline 100 210, clamp-press type connector for pipeline 100 is connected to two connection ends of connecting tube 200 210.Connection end 210 has circumferential convex along it If retaining wall 211, retaining wall 211 is placed in the first draw-in groove 130 of clamp-press type connector for pipeline 100.
Further, retaining wall 211 is in annular shape substantially.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are referred to, the clamp-press type of 211 and first draw-in groove of retaining wall 130 coordinates so that clamp-press type pipeline Coupling force between connector 100 and connecting tube 200 tends to balanced, along the circumference of connecting tube 200, the connection of clamp-press type pipeline Active force between part 100 and connecting tube 200 tends to homogenization.It is used for conveying high-pressure fluid especially for pipe-line system 400 Situation, can effectively prevent local pressure excessive and cause retaining wall 211 to be distorted the situation of deformation, it is ensured that clamp-press type The stability and security connected between conduit coupling 100 and connecting tube 200.
Further, connection end 210 also has along its circumferential recessed groove 212, and sealing ring 300 is placed in groove 212 And second draw-in groove 140 or the 3rd draw-in groove 150 of clamp-press type connector for pipeline 100 are placed in simultaneously.Clamp-press type connector for pipeline 100 With connection end 210 with the interference fit of sealing ring 300.
Further, sealing ring 300 is annular resilient collar, and in the present embodiment, sealing ring 300 is O-shaped elastic seal ring, Specifically, sealing ring 300 is made up of elastic rubber material, but is not limited only to this.
Further, groove 212 is in annular shape substantially.
Second draw-in groove 140 and the 3rd draw-in groove 150 can increase the contact of sealing ring 300 and clamp-press type connector for pipeline 100 Area, and then the effective sealing area between sealing ring 300 and clamp-press type connector for pipeline 100 is increased, be conducive to improving close The sealing effectiveness of seal 300.
Groove 212 can increase the contact area of sealing ring 300 and connection end 210, and then increase sealing ring 300 and connect The effective sealing area between end 210 is connect, is conducive to improving the sealing effectiveness of sealing ring 300.And sealing ring 300, groove 212, Second draw-in groove 140 and the 3rd draw-in groove 150 are compressed using circular arc, and when pressure is less than or equal to 1.6MPa, overpressure is got over Greatly, sealing effectiveness is better.
Further, clamp-press type connector for pipeline 100 is made of plastic material, and the connecting tube 200 of pipe-line system 400 is adopted It is made of aluminum alloy materials.Clamp-press type connector for pipeline 100 has the advantages that cheap, connecting tube 200 using plastic material There is good corrosion resistance using aluminum alloy materials, especially when pipe-line system 400 is used to convey compressed air, due to connection Pipe 200 has high-quality hydraulically smooth surface, it is ensured that the quality of transmission pure air.
It should be noted that along the axial direction of connecting cavity 110, the two side of two retaining walls 211 lie farthest away therebetween Between distance value be equal to the first draw-in groove 130 width value.
In other embodiment of the present utility model, in order to improve the sealing effectiveness of pipe-line system 400, can be in connection end 210 set two or more grooves 212 and sealing ring 300;Accordingly, the second card of clamp-press type connector for pipeline 100 Groove 140 will also set the number corresponding with groove 212 with the 3rd draw-in groove 150.
The operation principle of pipe-line system 400 is:The retaining wall 211 of the connection end 210 of connecting tube 200 blocks in pipe-line system 400 The first draw-in groove 130 of clamp-press type connector for pipeline 100 is pressed on, and the card of sealing ring 300 is pressed on the second draw-in groove 140 and groove 212 Between or the 3rd draw-in groove 150 and groove 212 between, not only make clamp-press type connector for pipeline 100 and the stable connection of connecting tube 200, And with good sealing effectiveness.The assembly and disassembly process of pipe-line system 400 easily, fast, can meet construction Schedule requirement occasion high.
The present embodiment also provides the production method of pipe-line system 400.The production method is comprised the following steps:
Modeling procedure:Modeled by BIM technology by the requirement of construction drawing, generate pipeline line chart;
Cutting step:Blanking cutting is carried out by line chart;
Procedure of processing:The mouth of pipe for being attached pipe 200 with special channelling machine is processed;
Number of assembling steps:Assembly and connection pipe 200 and clamp-press type connector for pipeline 100.
With BIM technology can the batch production prefabricated Assembling of batch reach installation effect, it is ensured that the peace of pipe-line system 400 Dress qualification rate, shortens the duration and reduces construction cost and technical risk.
In sum, the clamp-press type connector for pipeline 100 that the utility model is provided installs, peace quick and easy with dismounting Entirely;Stable connection reliability.The pipeline stable connection reliability of pipe-line system 400, seal for pipe joints is good, and assembling, dismounting are very convenient.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (10)

1. a kind of clamp-press type connector for pipeline, it is characterised in that the clamp-press type connector for pipeline is made up of at least two housings, The clamp-press type connector for pipeline has column connecting cavity, and recessed the pressure for card of the inwall of the clamp-press type connector for pipeline connects First draw-in groove of pipe and the second draw-in groove and the 3rd draw-in groove for card pressure seal ring, first draw-in groove are located at the described second card Between groove and the 3rd draw-in groove;First draw-in groove, second draw-in groove and the 3rd draw-in groove are by the inwall towards remote It is recessed from the axial line side of the connecting cavity.
2. clamp-press type connector for pipeline according to claim 1, it is characterised in that first draw-in groove, second card Groove and the 3rd draw-in groove along the clamp-press type connector for pipeline inwall it is circumferentially disposed.
3. clamp-press type connector for pipeline according to claim 2, it is characterised in that first draw-in groove, second card Groove is with the 3rd draw-in groove along the radial depressions of the connecting cavity.
4. clamp-press type connector for pipeline according to claim 3, it is characterised in that first draw-in groove is located at described second Approximately mid way between draw-in groove and the 3rd draw-in groove.
5. clamp-press type connector for pipeline according to claim 4, it is characterised in that the connecting cavity is in generally a cylindrical shape, First draw-in groove, second draw-in groove are with the 3rd draw-in groove three in annular shape substantially.
6. clamp-press type connector for pipeline according to claim 5, it is characterised in that circle corresponding to second draw-in groove Diameter of a circle corresponding to diameter and the 3rd draw-in groove is respectively less than the diameter of a circle corresponding to first draw-in groove.
7. clamp-press type connector for pipeline according to claim 6, it is characterised in that the connector is by two housings Composition, between two housings as where the axial line of the connecting cavity approximately the same plane segmentation, two housings by Bolt connection.
8. a kind of pipe-line system, it is characterised in that the pipe-line system includes the card pressure as described in claim 1-7 any one Formula conduit coupling, the pipe-line system also includes connecting tube, and the connecting tube at least one end has to be used for and the clamp-press type The connection end of conduit coupling connection, the clamp-press type connector for pipeline is connected to two connection ends of the connecting tube.
9. pipe-line system according to claim 8, it is characterised in that the connection end has along the gear of its circumferential projection Wall, the retaining wall is placed in first draw-in groove of the clamp-press type connector for pipeline.
10. pipe-line system according to claim 9, it is characterised in that the pipe-line system also has sealing ring, the company Connecing end also has along its circumferential recessed groove, and the sealing ring is placed in the groove and while is placed in the clamp-press type pipe Second draw-in groove or the 3rd draw-in groove of pipe connecting;The clamp-press type connector for pipeline and the connection end with it is described Sealing ring interference fit.
CN201621318913.9U 2016-12-02 2016-12-02 Clamp-press type connector for pipeline and pipe-line system CN206221849U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621318913.9U CN206221849U (en) 2016-12-02 2016-12-02 Clamp-press type connector for pipeline and pipe-line system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621318913.9U CN206221849U (en) 2016-12-02 2016-12-02 Clamp-press type connector for pipeline and pipe-line system

Publications (1)

Publication Number Publication Date
CN206221849U true CN206221849U (en) 2017-06-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621318913.9U CN206221849U (en) 2016-12-02 2016-12-02 Clamp-press type connector for pipeline and pipe-line system

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CN (1) CN206221849U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109000055A (en) * 2018-08-01 2018-12-14 重庆工业设备安装集团有限公司 Aluminium-alloy pipe pipe connecting and aluminium alloy pipeline system
CN109282097A (en) * 2018-08-17 2019-01-29 弗通流体科技(上海)有限公司 It is flared flange pipe connection system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109000055A (en) * 2018-08-01 2018-12-14 重庆工业设备安装集团有限公司 Aluminium-alloy pipe pipe connecting and aluminium alloy pipeline system
CN109282097A (en) * 2018-08-17 2019-01-29 弗通流体科技(上海)有限公司 It is flared flange pipe connection system

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