CN210661817U - Flange type expansion joint - Google Patents
Flange type expansion joint Download PDFInfo
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- CN210661817U CN210661817U CN201921393392.7U CN201921393392U CN210661817U CN 210661817 U CN210661817 U CN 210661817U CN 201921393392 U CN201921393392 U CN 201921393392U CN 210661817 U CN210661817 U CN 210661817U
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- sleeve
- expansion joint
- gland
- flange body
- bottom plate
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Abstract
The utility model provides a flange formula expansion joint, including gland, flange body and tight fixed double-screw bolt. The gland comprises a top cover and a first sleeve, the flange body comprises a second sleeve and a bottom plate, and the gland is arranged on the flange body; the upper part of the circle of the outer side of the second sleeve is provided with a limiting notch, and the inner side of the flange body is also provided with a fastening sleeve. The expansion joint of the utility model is provided with the fastening sleeve, so that the pipe is not easy to deform and break; the gland can be clamped by a limiting notch on the outer side of the second limiting sleeve; the sealing ring with the trapezoidal cross section enhances the sealing performance of the expansion joint; the buffer pad is arranged on the inner side of the fastening sleeve, so that a good shock absorption and buffering effect is achieved when the pipe or the joint vibrates, and the service life of the pipeline is effectively prolonged; the telescopic joint has simple structure and convenient installation, and can be adjusted according to the field installation size.
Description
Technical Field
The utility model relates to a pipe joint field especially relates to a flange formula expansion joint.
Background
The pipeline is a device connected by pipes, pipe connectors, valves and the like, and the pipeline transportation is a transportation mode for transporting liquid and gas materials for a long distance by using the pipeline as a transportation tool. Because various high-temperature and high-pressure conveying conditions need to be met during pipeline transportation, and the pipeline is easily deformed and twisted due to stress on part of the pipeline, so that the pipeline is damaged, an expansion joint needs to be arranged at the pipeline connection position.
The equipment is connected with the pipeline and the telescopic joint through the bolts to form a whole, the telescopic joint has the main effect of absorbing expansion or contraction of the pipeline caused by temperature change, and the condition that materials in the pipeline are leaked due to bending or cracking of the pipeline can be avoided.
However, the traditional expansion joint is rough in manufacture and often has a plurality of problems: firstly, the strength is not enough, and the bearing pressure is limited; secondly, the sealing property between the pipeline and the joint is poor, so that substances in the pipeline are easy to leak, and potential safety hazards are brought; thirdly, the joint has large vibration, poor stability and short service life. Fourthly, the installation consumes long time, the efficiency is lower, and the working progress is influenced.
Disclosure of Invention
The utility model aims at solving the defects existing in the prior art and providing a flange type expansion joint.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a flange formula expansion joint, including gland, flange body and tight fixed double-screw bolt. The gland comprises a top cover and a first sleeve, the top cover is a circular cylinder, the first sleeve is a cylinder with a hollow structure, the top cover and the first sleeve are connected in a seamless mode, and the flange body comprises a second sleeve and a bottom plate; the bottom plate is a circular cylinder, the second sleeve is a hollow cylinder, and the bottom end of the second sleeve is connected with the bottom plate in a seamless mode; the gland is arranged on the flange body;
a limiting notch is formed in the upper portion of one circle of the outer side of the second sleeve, and the thickness of the limiting notch is matched with that of the head of the first sleeve; the inner side of the flange body is further provided with a fastening sleeve, the fastening sleeve is connected with the inner side wall of the second sleeve, and the fastening sleeve is a hollow cylinder and is positioned between the gland and the flange body.
Preferably, a sealing ring is arranged in a gap between the fastening sleeve and the first sleeve, and the sealing ring is made of an elastic material.
Preferably, the cross section of the sealing ring is trapezoidal, and the shorter bottom edge of the trapezoid faces the second sleeve.
Preferably, the upper portion and the lower portion of the inner side wall of the fastening sleeve are provided with a circle of cushion pads, and the cushion pads are made of hard rubber materials.
Preferably, the surface of the buffer pad is provided with a circular bulge.
Preferably, the outer side wall of the second sleeve is connected with the bottom plate through a reinforcing rib, the reinforcing rib is triangular, and the reinforcing rib is perpendicular to the bottom plate.
Preferably, the top cap is equipped with a plurality ofly according to the circumference equidistance the stud of holding, the stud of holding is interior to be connected in the nut, and there is the antiskid cap top.
Preferably, the gland and the flange body are vertically connected by a plurality of the fastening studs.
Preferably, the outer diameter of the bottom plate is larger than the outer diameter of the top cover.
Preferably, two threaded holes are formed between every two reinforcing ribs on the bottom plate.
Compared with the prior art, the beneficial effects of the utility model are that: the fastening sleeve is arranged in the expansion joint, so that an extra layer of protection is added to the pipe, and the pipe is not easy to deform or break; a limiting notch is formed in the outer side of the second limiting sleeve, the shape of the limiting notch is matched with that of the first sleeve, and the gland can be clamped; the sealing ring with the trapezoidal cross section deforms when being extruded, so that a fit gap is better, the sealing performance of the expansion joint is enhanced, and the axial displacement generated by the expansion and contraction of the pipe can be properly compensated; the buffer pad is arranged at the inner side of the fastening sleeve, and the surface of the buffer pad is provided with the circular bulge, so that the buffer pad can be directly contacted with the pipeline, a good damping and buffering effect is achieved when the pipe or the joint vibrates, and the service life of the pipeline is effectively prolonged; the telescopic structure is made of carbon steel, so that the structural strength is high and the stability is good; the telescopic joint has simple structure and convenient installation, and can be adjusted according to the field installation size.
Drawings
Fig. 1 is a schematic view of an overall structure of a flange type expansion joint according to embodiment 1 of the present invention;
fig. 2 is a sectional view of a flange type expansion joint at a position a-a according to embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a cushion pad of a flange type expansion joint according to embodiment 1 of the present invention;
in the figure: 1-pressing a cover; 11-a top cover; 12-a first sleeve; 13-sealing ring; 2-a flange body; 21-a second sleeve; 212-a limit notch; 22-a base plate; 221-reinforcing ribs; 222-a threaded hole; 3-fastening the sleeve; 31-a cushion pad; 4-tightening the stud; 41-antiskid cap.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the present embodiment will be described in detail with reference to fig. 1, 2 and 3.
The utility model provides a flange formula expansion joint, including gland 1, flange body 2, tight fixed double-screw bolt 4. The gland 1 comprises a top cover 11 and a first sleeve 12, wherein the top cover 11 is a circular cylinder, the first sleeve 12 is a cylinder with a hollow structure, and the top cover 11 is in seamless connection with the first sleeve 12; the flange body 2 comprises a second sleeve 21 and a bottom plate 22; the bottom plate 22 is a circular cylinder, the second sleeve 21 is a hollow cylinder, and the bottom end of the second sleeve 21 is connected with the bottom plate 22 in a seamless mode; the gland 1 is arranged on the flange body 2.
The upper part of one circle of the outer side of the second sleeve 21 is provided with a limiting notch 212, the thickness of the limiting notch 212 is matched with that of the head part of the first sleeve 12, and in practical application, the gland 1 is matched with the limiting notch 212 in shape, and is small in clearance and tight in connection when placed on a flange body; the inboard fastening sleeve 3 that still is equipped with of flange body 2, fastening sleeve 3 and the connection of second sleeve 21 inside wall, and fastening sleeve 3 is hollow cylinder, is located in the middle of gland 1 and flange body 2, and the pipe is located fastening sleeve 3 middle, and fastening sleeve 3 has added the extra protection of one deck for the pipe, makes it difficult not hard up non-deformable.
Further, a sealing ring 13 is arranged in a gap between the fastening sleeve 3 and the first sleeve 12, the sealing ring 13 is made of elastic materials, the sealing ring 13 deforms when being extruded in the middle of the gland 1, the fastening sleeve 3 and the flange body 2, a better fit gap is formed, the sealing performance of the expansion joint is enhanced, and axial displacement generated by expansion and contraction of the pipe can be properly compensated.
Further, the cross section of the seal ring 13 is trapezoidal, and the shorter bottom side of the trapezoid faces the second sleeve 21. The cross section is trapezoidal more laminating gland 1 and flange body 2 and the shape when fastening sleeve receives the extrusion to reach better sealed effect.
Further, the upper and lower part of the inner side wall of the fastening sleeve 3 is provided with a circle of cushion pads 31, the cushion pads 31 are made of hard rubber materials, and the cushion pads are arranged on the inner side of the fastening sleeve and can be in direct contact with the pipeline, so that the damping effect is achieved when the pipe or the joint vibrates.
Furthermore, the surface of the cushion pad 31 is provided with the circular protrusions 311, and the circular protrusions 311 have a better buffering effect and enhance the damping effect of the cushion pad.
Further, the outer side wall of the second sleeve 21 is connected with the bottom plate 22 through the reinforcing rib 221, the reinforcing rib 221 is triangular, the reinforcing rib 221 is perpendicular to the bottom plate 22, the expansion joint is made of carbon steel, the strength is high, and the stability of the flange body 2 is further enhanced by the reinforcing rib.
Furthermore, the top cover 11 is provided with a plurality of fastening studs 4 according to the circumference equidistance, the fastening studs 4 are internally connected with the nut, the top end of the top cover is provided with an anti-slip cap 41, and the protective cap 41 prevents the fastening studs 4 from slipping under the condition that the nut is loosened, so that the structure of the telescopic joint is guaranteed to be firm.
Further, the gland 1 and the flange body 2 are vertically connected through a plurality of fastening studs 4. In practical application, the pipeline is connected with the fastening sleeve 3 in an aligned mode, and the annular structure of the top cover 11 and the hexagonal structure of the fastening bolt 4 enable the whole pipeline joint to be firm and high in structural strength, so that the pipe is prevented from being broken due to expansion caused by heat and contraction caused by cold; simultaneously, the annular structure makes the leakproofness of whole pipe good, makes things convenient for the pipeline to correspond and inserts in the joint, prevents the pipeline dislocation, and simple to operate has prolonged expansion joint's life.
Furthermore, the outer diameter of the bottom plate 22 is larger than that of the top cover 11, the bottom plate 22 is of an annular structure, the area of the bottom plate 22 is larger than that of the top cover 11, and the stability of the expansion joint is enhanced; and when two expansion joints are connected, the contact area is large, and the assembly is easier.
Furthermore, two threaded holes 222 are formed between every two reinforcing ribs 221 on the bottom plate 22, and when the flange bodies 2 of the two expansion joints are connected in a back direction, the two expansion joints are fixedly connected by penetrating screws into the threaded holes 222, so that the assembly is convenient, and the structure is stable.
The utility model provides a pair of soft sealing performance of flange formula expansion joint is superior, and loading and unloading are convenient.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.
Claims (10)
1. A flange formula expansion joint which characterized in that: the flange comprises a gland, a flange body and a fastening stud; the gland comprises a top cover and a first sleeve, the top cover is a circular cylinder, the first sleeve is a cylinder with a hollow structure, the top cover and the first sleeve are connected in a seamless mode, and the flange body comprises a second sleeve and a bottom plate; the bottom plate is a circular cylinder, the second sleeve is a hollow cylinder, and the bottom end of the second sleeve is connected with the bottom plate in a seamless mode; the gland is arranged on the flange body;
a limiting notch is formed in the upper portion of one circle of the outer side of the second sleeve, and the thickness of the limiting notch is matched with that of the head of the first sleeve; the inner side of the flange body is further provided with a fastening sleeve, the fastening sleeve is connected with the inner side wall of the second sleeve, and the fastening sleeve is a hollow cylinder and is positioned between the gland and the flange body.
2. The flanged expansion joint of claim 1, wherein: a sealing ring is arranged in a gap between the fastening sleeve and the first sleeve, and the sealing ring is made of elastic materials.
3. The flanged expansion joint of claim 2, wherein: the cross section of the sealing ring is trapezoidal, and the shorter bottom side of the trapezoid faces the second sleeve.
4. The flanged expansion joint of claim 1, wherein: the upper and lower part of fastening sleeve inside wall all is equipped with the round blotter, the blotter is made for hard rubber material.
5. The flanged expansion joint of claim 4, wherein: the surface of the buffer pad is provided with circular bulges.
6. The flanged expansion joint of claim 1, wherein: the outer side wall of the second sleeve is connected with the bottom plate through a reinforcing rib, the reinforcing rib is triangular, and the reinforcing rib is perpendicular to the bottom plate.
7. The flanged expansion joint of claim 1, wherein: the top cap is equipped with a plurality ofly according to the circumference equidistance tightly decide the double-screw bolt, tightly decide the double-screw bolt and cup joint in the nut, and there is the antiskid cap on the top.
8. A flanged expansion joint according to claim 3, characterized in that: the gland and the flange body are vertically connected through a plurality of fastening studs.
9. The flanged expansion joint of claim 1, wherein: the outer diameter of the bottom plate is larger than that of the top cover.
10. The flanged expansion joint of claim 6, wherein: and two threaded holes are formed between every two reinforcing ribs on the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921393392.7U CN210661817U (en) | 2019-08-26 | 2019-08-26 | Flange type expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921393392.7U CN210661817U (en) | 2019-08-26 | 2019-08-26 | Flange type expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210661817U true CN210661817U (en) | 2020-06-02 |
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ID=70816277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921393392.7U Active CN210661817U (en) | 2019-08-26 | 2019-08-26 | Flange type expansion joint |
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| Country | Link |
|---|---|
| CN (1) | CN210661817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115370846A (en) * | 2021-05-18 | 2022-11-22 | 南京秦源环境有限公司 | High-universality pipeline quick connector |
| CN115370845A (en) * | 2021-05-17 | 2022-11-22 | 南京秦源环境有限公司 | Pipeline connector capable of being connected quickly |
-
2019
- 2019-08-26 CN CN201921393392.7U patent/CN210661817U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115370845A (en) * | 2021-05-17 | 2022-11-22 | 南京秦源环境有限公司 | Pipeline connector capable of being connected quickly |
| CN115370846A (en) * | 2021-05-18 | 2022-11-22 | 南京秦源环境有限公司 | High-universality pipeline quick connector |
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