CN203431400U - Bend pressure balanced expansion joint - Google Patents
Bend pressure balanced expansion joint Download PDFInfo
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- CN203431400U CN203431400U CN201320444651.0U CN201320444651U CN203431400U CN 203431400 U CN203431400 U CN 203431400U CN 201320444651 U CN201320444651 U CN 201320444651U CN 203431400 U CN203431400 U CN 203431400U
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- bellows
- group
- work
- bend pipe
- expansion joint
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Abstract
The utility model discloses a bend pressure balanced expansion joint, which comprises a first group of working corrugated pipes, a second group of working corrugated pipes, a middle joint pipe arranged between the first group of working corrugated pipes and the second group of working corrugated pipes, a balance corrugated pipe, and a tee joint arranged between the second group of working corrugated pipes and the balance corrugated pipe, wherein a first working guide cylinder is arranged on an inner side of the first group of working corrugated pipes; a second working guide cylinder is arranged on an inner side of the second group of working corrugated pipes. Since the working guide cylinders are respectively arranged on inner sides of the two groups of working corrugated pipes, the impact of media on the working corrugated pipes is eliminated, and each working guide cylinder has small length dimension, is convenient to disassemble and assemble, and low in production and maintenance.
Description
Technical field
The utility model relates to a kind of pipe connector, is specifically related to a kind of bend pipe pressure balance type expansion joint.
Background technique
Bend pipe pressure balance type expansion joint be a kind of be mainly used in absorption axes to transverse combination displacement and can balance the expansion joint of ripple pipe pressure, thrust.The structural members such as two work bellowss that bend pipe pressure balance type expansion joint is generally connected by a work bellows or intervalve and balance bellows and threeway, end socket, rod assembly, end plate form.The turbulent flow that the flow velocity of conveyance conduit medium, changes in flow rate and medium produce in expansion joint can form certain impact to bellows, for this situation, prior art arranges guide shell in the inner side of work bellows, with better boot media, flow, the impact of minimizing to bellows, avoids its inefficacy.
Chinese utility model patent CN201513665U discloses a kind of bend pipe pressure balance type expansion joint of new structure, the pipe nipple and the spring assembly that mainly comprise two groups of work bellowss, balance bellows, two ends are provided with universal double-jointed hinge plate and ratio connecting rod means simultaneously; Wherein said universal double-jointed hinge plate is comprised of the short hinge plate connecting by crosshead, band andgudgeon carrier bar, and universal double-jointed hinge plate is fixed by the pipe nipple at expansion joint two ends; Described ratio connecting rod means is arranged between two groups of work bellowss, and its one end is connected with pipe nipple by end ring flat-plate, and the other end is connected with threeway; Described spring assembly adopts external hanging type, and its one end connects with the pipe nipple at flue gas turbine inlet place by end ring flat-plate, and the other end is connected with platform support.Two groups of described work bellowss share a work guide shell.The utility model solved expansion joint pipe nipple distortion in prior art, bellows deformation, intervalve vibration preferably, improve the problem such as stressed of cigarette machine equipment.But the shared work guide shell of two groups of work bellowss of this model utility, this work guide shell while, length dimension was large, dismounting is inconvenient across the inner side of the intervalve of two groups of work bellowss and centre thereof, and production and maintenance cost are high.
Summary of the invention
The utility model object is to provide a kind of simple in structure, easy accessibility, production and the low bend pipe pressure balance type expansion joint of maintenance cost.
For achieving the above object, the technical solution adopted in the utility model is: a kind of bend pipe pressure balance type expansion joint, comprise first group of work bellows, second group of work bellows, be located at middle adapter, the balance bellows between described first and second group work bellows and be located at the threeway between described second group of work bellows and balance bellows, the inner side of described first group of work bellows is provided with the first work guide shell, and the inner side of described second group of work bellows is provided with the second work guide shell.
Preferably, described threeway is connected and is formed by bend pipe and transition tube, and the oral area of described bend pipe is the medium inlet of this bend pipe pressure balance type expansion joint;
End and the described middle adapter of the close described balance bellows of described the first work guide shell touch, and end and the described threeway of the close described balance bellows of described the second work guide shell touch.
In technique scheme, the inner side of described balance bellows is provided with balance work guide shell.
Preferably, described first and second group work bellows all adopts thin-walled double layer construction.
Described balance bellows adopts thin-walled double layer construction.
In technique scheme, a side relative with described middle adapter of described first group of work bellows is connected with left adapter, and the outside of this left adapter is provided with left ring flat-plate;
A side relative with described threeway of described balance bellows is provided with right adapter, and the outside of this right adapter is provided with right ring flat-plate;
The outside of described middle adapter is provided with 3～6 guide plates;
Described bend pipe pressure balance type expansion joint also comprises 3～6 large pull bars that pass successively described left ring flat-plate, guide plate and right ring flat-plate.
In technique scheme, the two ends of described large pull bar are connected by fastener assembly and the described left and right ring flat-plate consisting of thin nut, Ball faced nut and taper faced washer respectively.
Preferably, the outside of described middle adapter is along being circumferentially with 4 described guide plates, and described bend pipe pressure balance type expansion joint comprises 4 described large pull bars;
The right side of the left side of described left ring flat-plate, the both sides of guide plate and right ring flat-plate is equipped with gusset.
In technique scheme, the outside of described first and second group work bellows and balance bellows is respectively equipped with 4 lower link bars.
Further technological scheme, the two ends of the described lower link bar in described first group of work bellows outside are connected with middle adapter with the left ring flat-plate that is positioned at these first group of work bellows both sides respectively;
The two ends of the described lower link bar in described second group of work bellows outside are connected with threeway with the middle adapter that is positioned at these second group of work bellows both sides respectively;
The two ends of the described lower link bar in described balance bellows outside are connected with right ring flat-plate with the transition tube that is positioned at these balance bellows both sides respectively.
Because technique scheme is used, the advantage that the utility model compared with prior art has is:
1. two groups of work bellowss of the present utility model inner side is separately provided with a work guide shell, eliminates the impact of medium to work bellows, and the length dimension of each work guide shell is little, easy accessibility, and production and maintenance cost are low.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment one structural representation;
Fig. 2 is the enlarged view of guide plate plan view in embodiment one;
Wherein: 1, left adapter; 2, thin nut 3, Ball faced nut; 4, taper faced washer; 5, left ring flat-plate; 6, first group of work bellows 7, middle adapter; 8, guide plate; 9, the first work guide shell; 10, large pull bar; 11, bend pipe 12, transition tube; 13, gusset; 18, balance bellows; 22, lower link bar; 23, second group of work bellows 24, the second work guide shell; 25, right adapter; 26, right ring flat-plate.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment one: shown in Figure 1, a kind of bend pipe pressure balance type expansion joint, comprise first group of work bellows 6, second group of work bellows 23, be located at middle adapter 7, the balance bellows 18 between described the first work bellows 6 and second group of work bellows 23 and be located at the threeway between described second group of work bellows 23 and balance bellows 18, the inner side of described first group of work bellows 6 is provided with the first work guide shell 9, and the inner side of described second group of work bellows 23 is provided with the second work guide shell 24.
A side relative with described middle adapter 7 of described first group of work bellows 6 is connected with left adapter 1, and the outside of this left adapter 1 is provided with left ring flat-plate 5; A side relative with described threeway of described balance bellows 18 is provided with right adapter 25, and the outside of this right adapter 25 is provided with right ring flat-plate 26; The outside of described middle adapter 7 is provided with circumferentially uniform guide plate 8 of 4 edges, and its structure as shown in Figure 2; The right side of the both sides of the left side of described left ring flat-plate 5, guide plate 8 and right ring flat-plate 26 is equipped with gusset 13.
Described bend pipe pressure balance type expansion joint also comprises that 4 successively through the large pull bar 10 of described left ring flat-plate 5, guide plate 8 and right ring flat-plate 26, and described in each, the two ends of large pull bar 10 are connected by fastener assembly and described left ring flat-plate 5, the right ring flat-plate 26 consisting of thin nut 2, Ball faced nut 3 and taper faced washer 4 respectively.
Described threeway is connected and is formed by bend pipe 11 and transition tube 12, and in the present embodiment, the oral area of described bend pipe 11 is the medium inlet of this bend pipe pressure balance type expansion joint, and the left port of described left adapter 1 is media outlet.
For adapting to the flow direction of medium, end and the described middle adapter 7 of the close described balance bellows 18 of described the first work guide shell 9 touch, and end and the described threeway of the close described balance bellows 18 of described the second work guide shell 24 touch.
The inner side of described balance bellows 18 also can arrange balance work guide shell as required.
Described first group of work bellows 6, second group of work bellows 23, balance bellows 18 all adopt thin-walled double layer construction.
The outside of described first group of work bellows 6, second group of work bellows 23 and balance bellows 18 is respectively equipped with circumferentially uniform lower link bar 22 of 4 edges.
Wherein, the two ends of the described lower link bar 22 in described first group of work bellows 6 outside are connected with middle adapter 7 with the left ring flat-plate 5 that is positioned at these first group of work bellows 6 both sides respectively.
The two ends of the described lower link bar 22 in described second group of work bellows 23 outside are connected with threeway with the middle adapter 7 that is positioned at these second group of work bellows 23 both sides respectively.
The two ends of the described lower link bar 22 in described balance bellows 18 outsides are connected with right ring flat-plate 26 with the transition tube 12 that is positioned at these balance bellows 18 both sides respectively.
Two groups of work bellowss of the present utility model inner side is separately provided with a work guide shell, eliminates the impact of medium to work bellows, and the length dimension of each work guide shell is little, easy accessibility, and production and maintenance cost are low.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of principle described in the utility model; can also make some improvement or replacement, these improvement or replacement also should be considered as protection domain of the present utility model.
Claims (10)
1. a bend pipe pressure balance type expansion joint, comprise first group of work bellows (6), second group of work bellows (23), be located at described first and second group work bellows (6,23) middle adapter between (7), balance bellows (18) and be located at described second group of work bellows (23) and balance bellows (18) between threeway, it is characterized in that: the inner side of described first group of work bellows (6) is provided with the first work guide shell (9), the inner side of described second group of work bellows (23) is provided with the second work guide shell (24).
2. bend pipe pressure balance type expansion joint according to claim 1, it is characterized in that: described threeway is connected and is formed by bend pipe (11) and transition tube (12), and the oral area of described bend pipe (11) is the medium inlet of this bend pipe pressure balance type expansion joint;
End and the described middle adapter (7) of the close described balance bellows (18) of described the first work guide shell (9) touch, and end and the described threeway of the close described balance bellows (18) of described the second work guide shell (24) touch.
3. bend pipe pressure balance type expansion joint according to claim 1 and 2, is characterized in that: the inner side of described balance bellows (18) is provided with balance work guide shell.
4. bend pipe pressure balance type expansion joint according to claim 1, is characterized in that: described first and second group work bellows (6,23) all adopts thin-walled double layer construction.
5. bend pipe pressure balance type expansion joint according to claim 1 and 2, is characterized in that: described balance bellows (18) adopts thin-walled double layer construction.
6. bend pipe pressure balance type expansion joint according to claim 1, it is characterized in that: a side relative with described middle adapter (7) of described first group of work bellows (6) is connected with left adapter (1), and the outside of this left adapter (1) is provided with left ring flat-plate (5);
A side relative with described threeway of described balance bellows (18) is provided with right adapter (25), and the outside of this right adapter (25) is provided with right ring flat-plate (26);
The outside of described middle adapter (7) is provided with 3～6 guide plates (8);
Described bend pipe pressure balance type expansion joint also comprises 3～6 large pull bars (10) that pass successively described left ring flat-plate (5), guide plate (8) and right ring flat-plate (26).
7. bend pipe pressure balance type expansion joint according to claim 6, it is characterized in that: the two ends of described large pull bar (10) are connected by fastener assembly and the described left and right ring flat-plate (5,26) consisting of thin nut (2), Ball faced nut (3) and taper faced washer (4) respectively.
8. bend pipe pressure balance type expansion joint according to claim 6, it is characterized in that: the outside of described middle adapter (7) is along being circumferentially with 4 described guide plates (8), and described bend pipe pressure balance type expansion joint comprises 4 described large pull bars (10);
The right side of the both sides of the left side of described left ring flat-plate (5), guide plate (8) and right ring flat-plate (26) is equipped with gusset (13).
9. bend pipe pressure balance type expansion joint according to claim 1, is characterized in that: the outside of described first and second group work bellows (6,23) and balance bellows (18) is respectively equipped with 4 lower link bars (22).
10. bend pipe pressure balance type expansion joint according to claim 9, is characterized in that: the two ends of the described lower link bar in described first group of work bellows (6) outside are connected with middle adapter with the left ring flat-plate that is positioned at these first group of work bellows (6) both sides respectively;
The two ends of the described lower link bar in described second group of work bellows (23) outside are connected with threeway with the middle adapter that is positioned at these second group of work bellows (23) both sides respectively;
The two ends of the described lower link bar in described balance bellows (18) outside are connected with right ring flat-plate with the transition tube that is positioned at these balance bellows (18) both sides respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320444651.0U CN203431400U (en) | 2013-07-25 | 2013-07-25 | Bend pressure balanced expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320444651.0U CN203431400U (en) | 2013-07-25 | 2013-07-25 | Bend pressure balanced expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431400U true CN203431400U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320444651.0U Expired - Fee Related CN203431400U (en) | 2013-07-25 | 2013-07-25 | Bend pressure balanced expansion joint |
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|---|---|
| CN (1) | CN203431400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851297A (en) * | 2014-03-18 | 2014-06-11 | 江苏星光波纹管有限公司 | Horizontal type expansion joint of double large draw bar |
-
2013
- 2013-07-25 CN CN201320444651.0U patent/CN203431400U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851297A (en) * | 2014-03-18 | 2014-06-11 | 江苏星光波纹管有限公司 | Horizontal type expansion joint of double large draw bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20140725 |
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| EXPY | Termination of patent right or utility model |