CN217653486U - High-temperature-resistant expansion joint - Google Patents
High-temperature-resistant expansion joint Download PDFInfo
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- CN217653486U CN217653486U CN202220039446.5U CN202220039446U CN217653486U CN 217653486 U CN217653486 U CN 217653486U CN 202220039446 U CN202220039446 U CN 202220039446U CN 217653486 U CN217653486 U CN 217653486U
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Abstract
The utility model discloses a prevent expansion joint of high temperature for deformation coupling mechanism installs in sealing mechanism's outside below both sides, coupling mechanism's bottom is connected with the protection machanism who is used for preventing excessive deformation. This expansion joint of preventing high temperature, compare with current device, through extending the end, can peg graft the pipeline when being connected between flange head and bellows and the pipeline in, through the sealing ring, can improve the leakproofness after extending the end grafting, avoid wholly taking place to leak behind the pipe connection, through the centre layer, it is the wire mesh material, can guarantee holistic intensity and pliability, through high temperature resistant layer, it is the polytetrafluoroethylene material, can prevent that the bellows from receiving high temperature and taking place to damage, through outer waterproof layer, it is the PVC material, can be isolated to the internal and external layer, avoid moisture infiltration, through the layer board, can take place the bulging deformation at the bellows, can hold up the support, avoid the bellows local deformation too big and take place to damage.
Description
Technical Field
The utility model relates to an expansion joint technical field specifically is a prevent expansion joint of high temperature.
Background
An expansion joint refers to a flexible element that effectively functions to compensate for axial deformation. For example, the expansion joint welded on the shell of the fixed tube-plate heat exchanger has large axial flexibility and easy deformation, can compensate the thermal expansion difference generated by the tube and the shell due to different wall temperatures, and reduces the axial load of the tube and the shell, thereby reducing the temperature difference stress of the tube, the tube plate and the shell and avoiding causing strength damage, instability damage and tube pull-out damage. The expansion joints are of various types and commonly used in structures such as wave shapes, ring plate welding, clamping shells and the like.
The existing expansion joint has the problems that when the expansion joint is used, a supporting rod is fixed, and the length of the whole expansion joint is inconvenient to adjust according to the distance of pipeline connection, so that the high-temperature-resistant expansion joint is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prevent expansion joint of high temperature to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prevent expansion joint of high temperature, includes sealing mechanism and coupling mechanism, sealing mechanism's middle part a week is provided with the supporting mechanism who is used for height adjustment, is used for deformation coupling mechanism installs in sealing mechanism's outside below both sides, coupling mechanism's bottom is connected with the protection machanism that is used for preventing excessive deformation, sealing mechanism's inner wall is fixed with the combined mechanism who is used for compound protection, supporting mechanism includes bracing piece, fixing bolt, bearing housing, threaded rod, thread bush and stopper, and installs fixing bolt at the top of bracing piece, the bottom of bracing piece is provided with the bearing housing, and the below of bearing housing is connected with the threaded rod, the below externally mounted of threaded rod has the thread bush, and the inboard middle part of thread bush is fixed with the stopper.
Furthermore, the threaded sleeve is penetrated through the threaded rod, and the threaded rod is rotatably connected with the supporting rod through the bearing sleeve.
Further, sealing mechanism includes flange head, bellows, extends end and sealing ring, the below middle part of flange head is fixed with the bellows, and the top middle part of flange head is provided with extends the end, the outside mid-mounting that extends the end has the sealing ring.
Further, the sealing rings are distributed annularly about the extension end, and the number of the sealing rings is two.
Furthermore, coupling mechanism includes dead lever, spring and head rod, the top middle part of dead lever is fixed with the spring, and the top of spring is connected with the head rod.
Furthermore, the protection mechanism comprises a supporting plate and a second connecting rod, the second connecting rod is arranged above the surface of the supporting plate, and the supporting plate is fixedly connected with the first connecting rod.
Furthermore, the combined mechanism comprises a central layer, a high temperature resistant layer and an outer waterproof layer, wherein the high temperature resistant layer is connected above and below the central layer, and the outer waterproof layer is fixed on the outer surface of the high temperature resistant layer.
Furthermore, the combined mechanism further comprises an inner waterproof layer, and the inner waterproof layer is connected to the inner side surface of the high-temperature-resistant layer.
Compared with the prior art, the utility model provides a prevent expansion joint of high temperature possesses following beneficial effect: this expansion joint can conveniently adjust the length of whole expansion joint according to pipe connection's interval, and can avoid local deformation too big and take place to damage, can prevent high temperature damage simultaneously.
1. The utility model can support the upper and lower ends of the whole body by fixing bolts, supporting rods, threaded rods and thread sleeves, avoid deformation, divide the interior of the threaded sleeves into upper and lower reverse threads by a limiting block by screwing the thread sleeves, so as to drive the threaded rods above and below to lift, and further drive the supporting rods to lift through the bearing sleeves, thereby conveniently adjusting the length of the whole expansion joint according to the space of pipeline connection;
2. the utility model discloses a layer board can hold up the support when the bellows takes place the inflation deformation, avoids the bellows local deformation too big and takes place to damage, through the stereoplasm spring, can make to have certain deformability between layer board and first connecting rod and the dead lever, thereby can expand along with the bellows, thereby avoid the bulging force of bellows in winter to receive the hindrance, through the second connecting rod, can make the atress that the layer board supported more stable, can make the layer board keep the same deflection;
3. the utility model discloses an extend the end, can peg graft the pipeline when being connected between flange head and bellows and the pipeline, through the sealing ring, can improve the leakproofness after extending the end grafting, avoid wholly taking place to leak behind with the pipe connection, through the centre layer, it is the woven wire material, can guarantee holistic intensity and pliability, through high temperature resistant layer, it is the polytetrafluoroethylene material, can prevent that the bellows from receiving high temperature and taking place to damage, through outer waterproof layer, it is the PVC material, can isolate internally and externally, avoid moisture infiltration.
Drawings
FIG. 1 is a schematic view of the overall front view of the internal structure of the present invention;
FIG. 2 is a schematic top view of the pallet of the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.
In the figure: 1. a sealing mechanism; 101. a flange head; 102. a bellows; 103. an extension end; 104. a seal ring; 2. a support mechanism; 201. a support bar; 202. fixing the bolt; 203. a bearing housing; 204. a threaded rod; 205. a threaded sleeve; 206. a limiting block; 3. a connecting mechanism; 301. fixing the rod; 302. a spring; 303. a first connecting rod; 4. a protection mechanism; 401. a support plate; 402. a second connecting rod; 5. a combination mechanism; 501. a center layer; 502. a high temperature resistant layer; 503. an outer waterproof layer; 504. and an inner waterproof layer.
Detailed Description
As shown in fig. 1, a high temperature resistant expansion joint comprises a sealing mechanism 1 and a connecting mechanism 3, a supporting mechanism 2 for height adjustment is arranged around the middle of the sealing mechanism 1, the sealing mechanism 1 comprises a flange head 101, a corrugated pipe 102, an extending end 103 and a sealing ring 104, the corrugated pipe 102 is fixed at the middle part below the flange head 101, an extending end 103 is arranged in the middle of the upper portion of the flange head 101, a sealing ring 104 is arranged in the middle of the outer side of the extending end 103, the sealing rings 104 are annularly distributed around the extending end 103, the number of the sealing rings 104 is two, and through the extending end 103, it can be inserted into the pipe when connecting the flange head 101 and the bellows 102 to the pipe, by means of the sealing ring 104, can improve the sealing performance of the extension end 103 after being inserted and connected, and avoid the leakage after the whole body is connected with a pipeline, the supporting mechanism 2 comprises a supporting rod 201, a fixed bolt 202, a bearing sleeve 203, a threaded rod 204, a threaded sleeve 205 and a limiting block 206, and the top of the supporting rod 201 is provided with a fixing bolt 202, the bottom of the supporting rod 201 is provided with a bearing sleeve 203, a threaded rod 204 is connected below the bearing sleeve 203, a threaded sleeve 205 is arranged outside the lower part of the threaded rod 204, a limiting block 206 is fixed at the middle part of the inner side of the threaded sleeve 205, the threaded sleeve 205 penetrates through the threaded rod 204, the threaded rod 204 is rotatably connected with the supporting rod 201 through the bearing sleeve 203, by means of the fixing bolt 202, the support rod 201, the threaded rod 204 and the threaded sleeve 205, the upper and lower ends of the whole body can be supported to avoid deformation, and by screwing the thread bush 205, the interior of the screw is divided into an upper reverse thread and a lower reverse thread by a limiting block 206, so that the upper threaded rod 204 and the lower threaded rod 204 can be driven to lift, the threaded rod 204 can drive the supporting rod 201 to lift through the bearing sleeve 203, so that the length of the integral expansion joint can be conveniently adjusted according to the distance between the pipeline connections;
as shown in fig. 1-3, the connecting mechanism 3 for deformation is installed at two sides of the outer lower part of the sealing mechanism 1, the bottom of the connecting mechanism 3 is connected with the protection mechanism 4 for preventing excessive deformation, the inner wall of the sealing mechanism 1 is fixed with the combination mechanism 5 for composite protection, the fixing rod 301, the spring 302 and the first connecting rod 303, the spring 302 is fixed at the middle part above the fixing rod 301, the first connecting rod 303 is connected above the spring 302, the supporting plate 401 and the second connecting rod 402 are arranged above the surface of the supporting plate 401, the supporting plate 401 is fixedly connected with the first connecting rod 303, through the supporting plate 401, when the corrugated pipe 102 is expanded and deformed, the supporting can be carried out, so as to avoid the corrugated pipe 102 from being damaged due to excessive local deformation, through the hard spring 302, the supporting plate 401 and the first connecting rod 303 and the fixing rod 301 have a certain deformation capability, thereby expanding along with the corrugated pipe 102, thereby avoiding the expansion force of the corrugated pipe 102 from being blocked in winter, the stress supported by the supporting plate 401 can be more stable through the second connecting rod 402, the supporting plate 401 can keep the same deformation, the central layer 501, the high temperature resistant layer 502 and the outer waterproof layer 503, the upper part and the lower part of the central layer 501 are connected with the high temperature resistant layer 502, the outer waterproof layer 503 and the inner waterproof layer 504 are fixed on the outer surface of the high temperature resistant layer 502, the inner waterproof layer 504 is connected on the inner side surface of the high temperature resistant layer 502, the central layer 501 is made of metal wire mesh, the whole strength and flexibility can be ensured, the high temperature resistant layer 502 is made of polytetrafluoroethylene, the corrugated pipe 102 can be prevented from being damaged by high temperature, the outer waterproof layer 503 is made of PVC, the inner layer and the outer layer can be isolated, avoiding the penetration of moisture.
The working principle is as follows: when the expansion joint is used, firstly, the upper end and the lower end of the whole body can be supported through the fixing bolt 202, the supporting rod 201, the threaded rod 204 and the threaded sleeve 205 to avoid deformation, then, the threaded sleeve 205 is screwed, the interior of the expansion joint is divided into upper and lower reverse threads through the limiting block 206, so that the threaded rod 204 on the upper side and the lower side can be driven to lift, further, the threaded rod 204 can drive the supporting rod 201 to lift through the bearing sleeve 203, so that the length of the whole expansion joint can be conveniently adjusted according to the distance of pipeline connection, then, the flange head 101 and the corrugated pipe 102 can be inserted into a pipeline when being connected with the pipeline through the extending end 103, the sealing performance after the extending end 103 is inserted can be improved through the sealing ring 104, the leakage after the whole body is connected with the pipeline is avoided, at the moment, the central layer 501 is made of a metal wire mesh material, can guarantee holistic intensity and pliability, then through high temperature resistant layer 502, it is the polytetrafluoroethylene material, can prevent that bellows 102 from receiving high temperature and taking place to damage, then through outer waterproof layer 503, it is the PVC material, can be isolated to the internal and external layer, avoid moisture infiltration, pass through layer board 401 this moment, can take place when the expansion deformation takes place at bellows 102, can hold up the support, avoid bellows 102 local deformation too big and take place to damage, later through the spring 302 of stereoplasm, can make and have certain deformability between layer board 401 and the head rod 303 and the dead lever 301, thereby can expand along with bellows 102, thereby avoid the expansive force of bellows 102 in winter to receive the hindrance, finally, through second connecting rod 402, can make the atress that layer board 401 supported more stable, can make layer board 401 keep the same deflection.
Claims (8)
1. The utility model provides a prevent expansion joint of high temperature, includes sealing mechanism (1) and coupling mechanism (3), its characterized in that, middle part a week of sealing mechanism (1) is provided with supporting mechanism (2) that are used for height adjustment, is used for deformation coupling mechanism (3) are installed in the outside below both sides of sealing mechanism (1), the bottom of coupling mechanism (3) is connected with protection machanism (4) that are used for preventing excessive deformation, the inner wall of sealing mechanism (1) is fixed with combined mechanism (5) that are used for compound protection, supporting mechanism (2) are including bracing piece (201), fixing bolt (202), bearing housing (203), threaded rod (204), thread bush (205) and stopper (206), and the top of bracing piece (201) installs fixing bolt (202), the bottom of bracing piece (201) is provided with bearing housing (203), and the below of bearing housing (203) is connected with threaded rod (204), the below externally mounted of threaded rod (204) has thread bush (205), and the inboard middle part fixed stop block (206) of thread bush (205).
2. The high-temperature-resistant expansion joint as claimed in claim 1, wherein the threaded sleeve (205) penetrates the threaded rod (204), and the threaded rod (204) is rotatably connected to the support rod (201) via the bearing sleeve (203).
3. The high-temperature-resistant expansion joint as claimed in claim 1, wherein the sealing mechanism (1) comprises a flange head (101), a corrugated pipe (102), an extension end (103) and a sealing ring (104), the corrugated pipe (102) is fixed at the lower middle part of the flange head (101), the extension end (103) is arranged at the upper middle part of the flange head (101), and the sealing ring (104) is installed at the outer middle part of the extension end (103).
4. A high temperature resistant expansion joint according to claim 3, characterized in that the sealing rings (104) are distributed annularly with respect to the extension end (103) and the number of sealing rings (104) provided is two.
5. The high temperature resistant expansion joint according to claim 1, wherein the connection mechanism (3) comprises a fixing rod (301), a spring (302) and a first connecting rod (303), the spring (302) is fixed at the upper middle part of the fixing rod (301), and the first connecting rod (303) is connected above the spring (302).
6. The high-temperature-resistant expansion joint according to claim 5, wherein the protection mechanism (4) comprises a supporting plate (401) and a second connecting rod (402), the second connecting rod (402) is arranged above the surface of the supporting plate (401), and the supporting plate (401) is fixedly connected with the first connecting rod (303).
7. The high-temperature-resistant expansion joint as claimed in claim 1, wherein the combined mechanism (5) comprises a central layer (501), a high-temperature-resistant layer (502) and an outer waterproof layer (503), the high-temperature-resistant layer (502) is connected above and below the central layer (501), and the outer waterproof layer (503) is fixed on the outer surface of the high-temperature-resistant layer (502).
8. The high temperature resistant expansion joint according to claim 7, wherein the combination mechanism (5) further comprises an inner waterproof layer (504), and the inner waterproof layer (504) is connected to the inner side surface of the high temperature resistant layer (502).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220039446.5U CN217653486U (en) | 2022-01-07 | 2022-01-07 | High-temperature-resistant expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220039446.5U CN217653486U (en) | 2022-01-07 | 2022-01-07 | High-temperature-resistant expansion joint |
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| Publication Number | Publication Date |
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| CN217653486U true CN217653486U (en) | 2022-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220039446.5U Active CN217653486U (en) | 2022-01-07 | 2022-01-07 | High-temperature-resistant expansion joint |
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| CN (1) | CN217653486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117704183A (en) * | 2024-02-05 | 2024-03-15 | 江苏耀宇新型管业有限公司 | Pressure-resistant high-temperature-resistant expansion joint |
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2022
- 2022-01-07 CN CN202220039446.5U patent/CN217653486U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117704183A (en) * | 2024-02-05 | 2024-03-15 | 江苏耀宇新型管业有限公司 | Pressure-resistant high-temperature-resistant expansion joint |
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