CN205371925U - Double entry pull rod type expansion joint pull rod connection structure - Google Patents
Double entry pull rod type expansion joint pull rod connection structure Download PDFInfo
- Publication number
- CN205371925U CN205371925U CN201620064986.3U CN201620064986U CN205371925U CN 205371925 U CN205371925 U CN 205371925U CN 201620064986 U CN201620064986 U CN 201620064986U CN 205371925 U CN205371925 U CN 205371925U
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- China
- Prior art keywords
- pull rod
- flange
- expansion joint
- type expansion
- rod type
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Abstract
The utility model provides a double entry pull rod type expansion joint pull rod connection structure, includes pull rod, flange and lock nut, the pull rod passes the flange that is located compound pull rod type expansion joint both sides respectively, the pull rod both ends respectively with lock nut screw -thread fit, lock nut and flange are equipped with the spherical pad circle within a definite time, and equipartition draw bar on the flange, each draw bar are face of cylinder section and connect circular conical surface section, macrostoma end position in the outside of each flange terminal surface, circular conical surface section and the combination of spherical pad circle matching of circular conical surface section. The utility model discloses abandoning the structure commonly used that the cooperation of spherical pad circle, conical surface washer was used, processing out on the flange and match the conical surface hole of using with the spherical pad circle, the inter combination that utilizes conical surface hole and spherical pad circle reaches automatic positioning, atress evenly and the difficult operation requirement that becomes flexible. Adopt the part under the prerequisite that satisfies compound pull rod type expansion joint pull rod connection request, can be saved to the structure, simplifies connection structure, is favorable to improving dismouting efficiency and practices thrift the cost.
Description
Technical field
This utility model relates to a kind of expansion joint, particularly compound pull rod type expansion joint bar jointing structure.
Background technology
Corrugated expanding metal joint is had, by what metal bellows and respective members formed, the pipe network parts compensating function.The structural member such as two corrugated tubes and pull bar, flange and packing ring that compound pull rod type expansion joint is connected by intervalve forms, and compound pull rod type expansion joint can absorb the lateral displacement in any plane, and can bear corrugated tube pressure thrust.Compound pull rod type expansion joint is usually used in adding thermal walking, mechanical displacement, absorption vibration, reducing the occasion such as noise of pipeline, equipment and system.Owing to compound pull rod type expansion joint in use mainly absorbs lateral displacement, from the viewpoint of stress and bonding strength etc., the attachment structure at current pull bar two ends have employed spheric washer, two gasket features being used in conjunction with each other of taper faced washer, as shown in Figure 4, Figure 5.This structure utilizes spheric washer to have retaining effect and automatic adjusting position function to make its uniform force, axially has stress to exist at bolt during fastening, increases the frictional force between screw thread and makes fastened nut not easily loosen, meets instructions for use.But, this common structure there is problems of, and the number of parts taken is many, and dismounting inconvenience, cost increases.
Utility model content
The purpose of this utility model is in that the drawback for prior art, it is provided that a kind of compact conformation, take the compound pull rod type expansion joint bar jointing structure that part is few.
Problem described in the utility model realizes with following technical proposals:
A kind of compound pull rod type expansion joint bar jointing structure, including pull bar, flange and locking nut, pull bar is each passed through the flange being positioned at compound pull rod type expansion joint both sides, pull bar two ends respectively with locking nut threaded engagement, spheric washer it is provided with between described locking nut and flange, uniform tie rod hole on flange, each tie rod hole is that face of cylinder section connects taper seat section, the big opening end of taper seat section is positioned at the end face outside of each flange, and taper seat section mates combination with spheric washer.
Above-mentioned compound pull rod type expansion joint bar jointing structure, the coning angle of described taper seat section is 120 °, the end diameter of described taper seat section and the diameter matches of face of cylinder section.
Above-mentioned compound pull rod type expansion joint bar jointing structure, the diameter of described face of cylinder section is more than pull bar diameter 2 millimeters.
This utility model has improved for simplifying compound pull rod type expansion joint bar jointing structure problem, abandon spheric washer, taper faced washer with the use of common structure, flange processes and mates the conical hole used with spheric washer, utilize the instructions for use reaching automatic positoning, uniform force and not easily loosen that be combined with each other of conical hole and spheric washer.Adopt attachment structure described in the utility model, under the premise meeting compound pull rod type expansion joint pull bar connection request, it is possible to save part, simplify attachment structure, be conducive to improving dismounting efficiency and saving cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the partial enlarged view at Figure 1A place；
Fig. 3 is the partial schematic diagram of flange；
Fig. 4 is the schematic diagram of existing compound pull rod type expansion joint bar jointing structure；
Fig. 5 is the partial enlarged view at B place in Fig. 4.
In figure, each list of reference numerals is: 1, end pipe, 2, corrugated tube, 3, intervalve, 4, flange, and 4-1, face of cylinder section, 4-1, taper seat section, 5, pull bar, 6, locking nut, 7, spheric washer.
Detailed description of the invention
Referring to Fig. 1, this utility model expands for compound pull rod type, the composition of compound pull rod type expansion joint includes intervalve 3 and lays respectively at two corrugated tubes 2 of middle pipe end, outboard end at each corrugated tube is provided with end pipe 1 and flange 4, pull bar 5 traverse two flanges, the two ends of pull bar and locking nut threaded engagement.
Referring to Fig. 1, Fig. 2, Fig. 3, bar jointing structure described in the utility model, including pull bar 5, flange 4, locking nut 6 and spheric washer 7.Uniform tie rod hole on each flange, it is illustrated that embodiment pull bar arranges four, respectively arranges four identical tie rod holes of structure accordingly on each flange.Each tie rod hole is dual segment structure, is made up of interconnective face of cylinder section 4-1 and taper seat section 4-2, and wherein the big opening end of taper seat section is positioned at the end face outside of each flange, and taper seat section mates combination with spheric washer.The coning angle of taper seat section is 120 °, and the diameter matches of the end diameter of taper seat section and face of cylinder section, the diameter of face of cylinder section is more than pull bar diameter 2 millimeters.
Tie rod hole on flange is processed as dual segment structure by this utility model, substitutes taper faced washer with the taper seat section of tie rod hole, and spheric washer directly mates combination with taper seat section, play automatic positoning put, uniform force, not easily loosening effect.Adopt this structure can simplify structure under the premise ensureing bonding strength, reduce part, improve efficiency of assembling.
Claims (3)
1. a compound pull rod type expansion joint bar jointing structure, including pull bar (5), flange (4) and locking nut (6), pull bar is each passed through the flange being positioned at compound pull rod type expansion joint both sides, pull bar two ends respectively with locking nut threaded engagement, it is characterized in that: between described locking nut and flange, be provided with spheric washer (7), uniform tie rod hole on flange, each tie rod hole is that face of cylinder section (4-1) connects taper seat section (4-2), the big opening end of taper seat section is positioned at the end face outside of each flange, and taper seat section mates combination with spheric washer.
2. compound pull rod type expansion joint bar jointing structure according to claim 1, it is characterised in that: the coning angle of described taper seat section is 120 °, the end diameter of described taper seat section and the diameter matches of face of cylinder section.
3. compound pull rod type expansion joint bar jointing structure according to claim 2, it is characterised in that: the diameter of described face of cylinder section is more than pull bar diameter 2 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620064986.3U CN205371925U (en) | 2016-01-25 | 2016-01-25 | Double entry pull rod type expansion joint pull rod connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620064986.3U CN205371925U (en) | 2016-01-25 | 2016-01-25 | Double entry pull rod type expansion joint pull rod connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205371925U true CN205371925U (en) | 2016-07-06 |
Family
ID=56273196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620064986.3U Active CN205371925U (en) | 2016-01-25 | 2016-01-25 | Double entry pull rod type expansion joint pull rod connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205371925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828751A (en) * | 2020-07-13 | 2020-10-27 | 郝中亮 | Nano composite fiber tube |
-
2016
- 2016-01-25 CN CN201620064986.3U patent/CN205371925U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828751A (en) * | 2020-07-13 | 2020-10-27 | 郝中亮 | Nano composite fiber tube |
| CN111828751B (en) * | 2020-07-13 | 2022-05-13 | 郝中亮 | Nano composite fiber tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |