CN206191078U - Reducer union - Google Patents

Reducer union Download PDF

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Publication number
CN206191078U
CN206191078U CN201621265530.XU CN201621265530U CN206191078U CN 206191078 U CN206191078 U CN 206191078U CN 201621265530 U CN201621265530 U CN 201621265530U CN 206191078 U CN206191078 U CN 206191078U
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CN
China
Prior art keywords
threaded
screw thread
reducer union
fastening
sealing ring
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Active
Application number
CN201621265530.XU
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Chinese (zh)
Inventor
胡国佳
韩世辉
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Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
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Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
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Priority to CN201621265530.XU priority Critical patent/CN206191078U/en
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Publication of CN206191078U publication Critical patent/CN206191078U/en
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Abstract

The embodiment of the utility model provides a reducer union. Reducer union connects the body and includes first screw portion, second screw portion and fastening portion including connecting body, fixation nut and sealing washer, and first screw portion and the 2nd the threaded portion do not set up in the both sides of fastening portion, and the diameter of screw for the connection of first screw portion is different with being connected with the diameter of screw of second screw portion, connecting the body and being equipped with the installation in at least one side of the both sides of fastening portion and use external screw thread portion, fixation nut is through the installation with external screw thread portion and joint body threaded connection, the sealing washer includes first sealing washer, and first sealing washer setting is between fastening portion and fixation nut. The embodiment of the utility model provides a reducer union is through guaranteeing the sealed effect between pipeline and the reducer union setting up the sealing washer between fastening portion and the fixation nut. Can realize effectively installing the purpose on surfaces such as the cabinet body with reducer union through setting up fixation nut, need not replacement parts, the fastening mode is simple, and the installation effectiveness is high.

Description

Reducer union
Technical field
The utility model is related to pipeline connection area, more particularly to a kind of reducer union.
Background technology
In power system, hole to be provided is needed in the design of cabinet lead-out wire, but often due to supply of material mistake, mechanical tolerance Etc. reason, the major diameter of thread and cabinet hole to be provided for causing cabinet external cable protecting tube are mismatched, and now need reaming or replacing Cable protective pipe, often also needing to employ naked light carries out ream operation, and the equipment such as cable are easily caused to damage.So, The waste of time and financial cost is resulted in.
Importantly, reducer union of the prior art is merely able to play a part of connecting reducing pipe, and can not play The effect sealed to two ends pipeline.It is existing especially in some external environments complexity or to the very tight place of seal request Reducer union in technology is all difficult to ensure that the sealing of reducer union and its two ends connecting line.
Utility model content
The utility model provides a kind of reducer union, to solve the pipeline that reducer union is connected with its two ends in the prior art Poorly sealed problem.
To reach above-mentioned purpose, embodiment of the present utility model provides a kind of reducer union.Reducer union includes joint sheet Body, fixing nut and sealing ring, joint body include the first threaded portion, the second threaded portion and fastening part, the first threaded portion and the Two threaded portions are separately positioned on the both sides of fastening part, the connection of the diameter and the second threaded portion of the connection screw thread of the first threaded portion Diameter with screw thread is different;Joint body is provided with installation external screw thread at least side of the both sides of fastening part, and fixing nut is led to Installation external screw thread is crossed to be threadedly coupled with joint body;Sealing ring includes the first sealing ring, and the first sealing ring is arranged on fastening part Between fixing nut.
Alternatively, installation external screw thread is located on the first threaded portion.
Alternatively, the connection screw thread of the first threaded portion and installation external screw thread are same external screw thread.
Alternatively, the connection screw thread of the first threaded portion is internal thread.
Alternatively, the connection screw thread of the second threaded portion is internal thread or external screw thread.
Alternatively, when connection screw thread is internal thread, annular table is provided with internal thread, sealing ring also includes the second sealing Circle, the second sealing ring is arranged in annular table.
Alternatively, the outline of fastening part is hexagon.
Alternatively, fixing nut is hex nut.
Alternatively, the outward flange of the first threaded portion and/or the end of the second threaded portion is provided with chamfering structure.
Alternatively, the outer surface of joint body and fixing nut is coated with corrosion-inhibiting coating.
The utility model has the advantages and positive effects that:
The reducer union that the utility model embodiment is provided, by setting sealing between fastening part and fixing nut Circle, can effectively ensure the sealing effectiveness being connected between the pipeline in reducer union and reducer union.Meanwhile, by setting Firmly, reliably can be arranged on the surfaces such as cabinet for reducer union by fixing nut, without extra fixed component, and tightly Gu mode is simple, installation effectiveness is high.
Brief description of the drawings
The reducer union schematic diagram that Fig. 1 is provided for the utility model embodiment;
The schematic diagram of the joint body that Fig. 2 is provided for the utility model embodiment;
The schematic structure of the fixing nut that Fig. 3 is provided for the utility model embodiment;
The schematic diagram of the first sealing ring that Fig. 4 is provided for the utility model embodiment;
The installation of installation site of the second sealing ring that Fig. 5 is provided for the utility model embodiment on joint body is illustrated Figure.
Description of reference numerals:
1st, joint body;2nd, fixing nut;3rd, the first threaded portion;4th, the second threaded portion;5th, fastening part;6th, the first sealing Circle;7th, the second sealing ring.
Specific embodiment
Describe the exemplary embodiment of the utility model embodiment in detail below in conjunction with the accompanying drawings.
With reference to Fig. 1, embodiment of the present utility model provides a kind of reducer union.Reducer union includes joint body 1, fixes Nut 2 and sealing ring, joint body 1 include the first threaded portion 3, the second threaded portion 4 and fastening part 5, the first threaded portion 3 and second Threaded portion 4 is separately positioned on the company of the both sides of fastening part 5, the diameter of the connection screw thread of the first threaded portion 3 and the second threaded portion 4 Connect different with the diameter of screw thread;Joint body 1 is provided with installation external screw thread, fixed spiral shell at least side of the both sides of fastening part 5 Female 2 are threadedly coupled by installation external screw thread with joint body 1;Sealing ring includes the first sealing ring 6, and the first sealing ring 6 is set Between fastening part 5 and fixing nut 2.
The reducer union that the utility model embodiment is provided between fastening part 5 and fixing nut 2 by setting sealing Circle, can effectively ensure the sealing effectiveness being connected between the pipeline in reducer union and reducer union.Meanwhile, by setting Firmly, reliably can be arranged on the surfaces such as cabinet for reducer union by fixing nut, without extra fixed component, and tightly Gu mode is simple, installation effectiveness is high.
Referring to figs. 1 to Fig. 4, the first threaded portion 3 and the second threaded portion 4 are connected with two waney pipelines respectively, fastening Portion 5 is arranged on the centre of the first threaded portion 3 and the second threaded portion 4, and the purpose for setting it is convenient when installing the reducer union Operating personnel carry out tightening operation, while may also operate as the effect of fixed or swivel body.In fastening part 5 at least Side is provided with installation external screw thread, and the installation external screw thread is used to the nut 2 that is connected.Can be with by setting fixing nut 2 The reducer union is connected into cabinet etc. needs to wear in the board of pipeline.
Specifically, as a example by the reducer union is arranged on cabinet.Being offered in advance on cabinet is available for pipeline to pass through Mounting hole, installation will be provided with the reducer union with externally threaded one end from the side of cabinet through the mounting hole, then general Fixing nut 2 is threadedly coupled with the installation for stretching out the mounting hole from the opposite side of cabinet with external screw thread, is so achieved that this Reducer union is arranged on the purpose on cabinet.
Further, with reference to Fig. 1, in order to ensure that cabinet has preferable sealing integrity, isolation cabinet external dust, steam Cabinet inner part is caused to corrode or aging into cabinet Deng impurity, it is close to be additionally provided with first between fastening part 5 and fixing nut 2 Seal 6.It should be noted that the internal diameter of the first sealing ring 6 should be configured to smaller or phase compared to the external diameter of the first threaded portion 3 Deng can so ensure sealing effectiveness optimal between the first sealing ring 6 and the first threaded portion 3.
In the present embodiment, the first threaded portion 3, the second threaded portion 4, fastening part 5 and fixing nut 2 can be certain using having The metal or plastics of intensity are made, and can so ensure that the first threaded portion 3, the second threaded portion 4, fastening part 5 and fixing nut 2 can hold By long-term stress without there is big deformation;First sealing ring 6 can be using the rubber system with certain elasticity and ageing resistace Into can so ensure that it has good sealing property.
Preferably, the outline of fastening part 5 is hexagon, and fixing nut 2 is hex nut.
With reference to referring to figs. 2 and 3 in a preferred embodiment, it is just that fastening part 5 is arranged into hexagonal purpose Be clamped on fastening part 5 using instruments such as spanners in operating personnel, then by the nut 2 that is tightened by by the reducer union peace On the sheet materials such as cabinet.In other some implementation methods, also fastening part 5 can be designed into other has regular shape Form, also can be designed to other fixtures that can realize coordinating with installation external screw thread by fixing nut 2.
In some embodiments, as shown in Fig. 2 installation external screw thread is located on the first threaded portion 3.Other In implementation method, installation external screw thread can be also arranged on the second threaded portion 4 or in the first threaded portion 3 and the second threaded portion Installation external screw thread is provided with 4.Specifically, when using the reducer union, can flexibly select according to actual needs.
Alternatively, the helicitic texture on the first threaded portion 3 can have following two:
First, in a kind of implementation method as shown in Figure 2, the connection screw thread of the first threaded portion 3 is with external screw thread with installation Same external screw thread.Namely installation external screw thread is both used for being connected nut 2, also for being attached with pipeline.
2nd, in the another embodiment not shown in figure, the connection screw thread of the first threaded portion 3 is internal thread. In this implementation method, the screw thread for connecting line is internal thread, and internal thread is arranged on the inner peripheral surface of the first threaded portion 3. The installation external screw thread being arranged on the outer peripheral face of the first threaded portion 3 is used merely to the nut 2 that is connected.
Optionally, in addition, the connection screw thread of the second threaded portion 4 is internal thread or external screw thread.
With reference to Fig. 2, in one embodiment, the connection screw thread on the second threaded portion 4 is internal thread, and the internal thread sets Put on the inner peripheral surface of the second threaded portion 4.In other some implementation methods, the connection screw thread on the second threaded portion 4 It can be external screw thread.
Preferably, it is interior when the connection screw thread of the first threaded portion 3 and/or the second threaded portion 4 is internal thread with reference to Fig. 5 Annular table is provided with screw thread, sealing ring also includes the second sealing ring 7, and the second sealing ring 7 is arranged in annular table.
It should be noted that the internal diameter of annular table should not be configured to it is too small, in order to avoid the pipeline that is connected of influence two ends, annular The width of the ring surface of platform only needs to that the second sealing ring 7 can be placed.It should be noted that the external diameter of the second sealing ring 7 Should be configured to compared to the internal diameter of the first threaded portion 3 and/or the second threaded portion 4 bigger or equal, can so ensure that second is close The threaded portion 3 of seal 7 and first and/or the optimal sealing effectiveness of the inner peripheral surface of the second threaded portion 4.
The purpose for setting the second sealing ring 7 is the pipeline and reducing that can effectively ensure to be connected in the reducer union Sealing between joint.For example, when the pipeline connected in reducer union is used for circulating liquid, can effectively prevent liquid Overflowed from the junction of pipeline and reducer union.Second sealing ring 7 also can be using the rubber with certain elasticity and ageing resistace Glue is made.
Preferably, the outward flange of the first threaded portion 3 and/or the end of the second threaded portion 4 is provided with chamfering structure.
In mode is preferably carried out, it is provided with down in the outward flange of the first threaded portion 3 and the end of the second threaded portion 4 Corner structure.The purpose for so setting is to facilitate pipeline to be attached with reducer union.Specifically, when the first threaded portion 3 and When connection screw thread on two threaded portions 4 is external screw thread, chamfering structure should make the end of the first threaded portion 3 and the second threaded portion 4 Portion is convenient to be connected with the female pipeline of setting to contract;When on the first threaded portion 3 and the second threaded portion 4 Connection screw thread when being internal thread, chamfering structure should expand outwardly the first threaded portion 3 and the end of the second threaded portion 4, It is convenient be provided with externally threaded pipeline and be connected.
Preferably, it is not corroded to ensure the reducer union long-term use, in the outer of joint body 1 and fixing nut 2 Surface spraying has corrosion-inhibiting coating.
The utility model has the advantages that:
The reducer union that the utility model embodiment is provided, by setting sealing between fastening part and fixing nut Circle, can effectively ensure the sealing effectiveness being connected between the pipeline in reducer union and reducer union.Meanwhile, by setting Firmly, reliably can be arranged on the surfaces such as cabinet for reducer union by fixing nut, without extra fixed component, and tightly Gu mode is simple, installation effectiveness is high.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed Or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power The protection domain that profit is required is defined.

Claims (10)

1. a kind of reducer union, it is characterised in that including joint body (1), fixing nut (2) and sealing ring,
The joint body (1) includes the first threaded portion (3), the second threaded portion (4) and fastening part (5), first threaded portion (3) and second threaded portion (4) is separately positioned on the both sides of the fastening part (5), the connection of first threaded portion (3) is used The diameter of screw thread is different from the diameter of the connection screw thread of second threaded portion (4);
At least side of both sides of the joint body (1) in the fastening part (5) is provided with installation external screw thread, the fixed spiral shell Female (2) are threadedly coupled by the installation external screw thread with the joint body (1);
The sealing ring includes the first sealing ring (6), and it is solid with described that first sealing ring (6) is arranged on the fastening part (5) Determine between nut (2).
2. reducer union according to claim 1, it is characterised in that the installation external screw thread is located at first screw thread In portion (3).
3. reducer union according to claim 2, it is characterised in that the connection screw thread of first threaded portion (3) with The installation external screw thread is same external screw thread.
4. reducer union according to claim 2, it is characterised in that the connection of first threaded portion (3) is with screw thread Internal thread.
5. reducer union according to claim 2, it is characterised in that the connection of second threaded portion (4) is with screw thread Internal thread or external screw thread.
6. the reducer union according to claim 4 or 5, it is characterised in that when the connection screw thread is internal thread, institute State and annular table is provided with internal thread, the sealing ring also includes the second sealing ring (7), second sealing ring (8) is arranged on institute State in annular table.
7. reducer union according to claim 3, it is characterised in that the outline of the fastening part (5) is hexagon.
8. reducer union according to claim 3, it is characterised in that the fixing nut (2) is hex nut.
9. reducer union according to claim 1, it is characterised in that in first threaded portion (3) and/or the second screw thread The outward flange of the end in portion (4) is provided with chamfering structure.
10. the reducer union according to any one of claim 1 to 5 or 7,8,9, it is characterised in that the joint body And the outer surface of the fixing nut (2) is coated with corrosion-inhibiting coating (1).
CN201621265530.XU 2016-11-23 2016-11-23 Reducer union Active CN206191078U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621265530.XU CN206191078U (en) 2016-11-23 2016-11-23 Reducer union

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621265530.XU CN206191078U (en) 2016-11-23 2016-11-23 Reducer union

Publications (1)

Publication Number Publication Date
CN206191078U true CN206191078U (en) 2017-05-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621265530.XU Active CN206191078U (en) 2016-11-23 2016-11-23 Reducer union

Country Status (1)

Country Link
CN (1) CN206191078U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109030337A (en) * 2018-07-03 2018-12-18 北京工业大学 A kind of buried metal pipeline corrosion and corrosion protection layer peel test system based on SECM
CN109253914A (en) * 2018-07-24 2019-01-22 中国石油天然气集团有限公司 A kind of threaded connection carrying sealing device for the full-scale evaluation test of tubing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109030337A (en) * 2018-07-03 2018-12-18 北京工业大学 A kind of buried metal pipeline corrosion and corrosion protection layer peel test system based on SECM
CN109253914A (en) * 2018-07-24 2019-01-22 中国石油天然气集团有限公司 A kind of threaded connection carrying sealing device for the full-scale evaluation test of tubing

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