CN217302096U - Direct-buried external pressure type corrugated expansion joint - Google Patents
Direct-buried external pressure type corrugated expansion joint Download PDFInfo
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- CN217302096U CN217302096U CN202220166976.6U CN202220166976U CN217302096U CN 217302096 U CN217302096 U CN 217302096U CN 202220166976 U CN202220166976 U CN 202220166976U CN 217302096 U CN217302096 U CN 217302096U
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- straight pipe
- pipe
- guide cylinder
- fixing plate
- expansion joint
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
The utility model discloses a direct-buried external pressure type corrugated expansion joint, which comprises a first straight pipe, an outer pipe and a second straight pipe, wherein a second fixing plate is arranged at the outer side of one end of the second straight pipe, a first fixing plate is arranged at the outer side of the other end of the second straight pipe, the outer pipe is arranged at one end of the first straight pipe, and the outer pipe is arranged at one end of the second straight pipe and is connected with the second fixing plate through a pull rod; the corrugated pipe is arranged between the first fixing plate and one end of the outer pipe, which is positioned at the second fixing plate; a first guide cylinder is arranged at the position, located at the second straight pipe, of the first straight pipe, a second guide cylinder is arranged at the position, located at the first straight pipe, of the second straight pipe, and the first guide cylinder is located on the inner side of the second guide cylinder; the first guide cylinder and the second guide cylinder are both of metal elastic sheet structures. The utility model discloses, adopt two draft tubes, under the condition that does not influence the velocity of flow, can reduce liquid bellows, and do not influence the flexible of bellows.
Description
Technical Field
The utility model relates to a ripple expansion joint technical field specifically is a direct-burried external pressure type ripple expansion joint.
Background
The expansion joint is a pipe network component widely applied to occasions of metallurgy, petroleum, electric power, chemical industry, urban heat supply and the like. The corrugated expansion joint is a device with a compensation function and composed of a corrugated pipe and a member. The corrugated expansion joint comprises a corrugated pipe, two ends of the corrugated pipe are provided with end connecting pipes, the end connecting pipes are connected with a pipeline, and a guide cylinder is arranged in the corrugated pipe.
The existing guide shell is of an integrated structure, the fixing modes are two, one is that two ends are fixed on a straight pipe (the expansion of a corrugated expansion joint is not convenient), and the other is that one end is fixed on the straight pipe (liquid easily enters a corrugated pipe section).
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a direct-burried external pressure type ripple expansion joint to solve the problem among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme: a direct-buried external pressure type corrugated expansion joint comprises a first straight pipe, an outer pipe and a second straight pipe, wherein a second fixing plate is installed on the outer side of one end of the second straight pipe, a first fixing plate is installed on the outer side of the other end of the second straight pipe, the outer pipe is installed at one end, located on the first straight pipe, of the first straight pipe, and the end, located on the second fixing plate, of the outer pipe is connected with the second fixing plate through a pull rod; the corrugated pipe is arranged between the first fixing plate and the outer pipe and positioned at one end of the second fixing plate; a first guide cylinder is arranged at the position, located at the second straight pipe, of the first straight pipe, a second guide cylinder is arranged at the position, located at the first straight pipe, of the second straight pipe, and the first guide cylinder is located on the inner side of the second guide cylinder; the first guide cylinder and the second guide cylinder are both of metal elastic sheet structures.
Preferably, the pull rod and the second fixing plate are adjusted and fixed through a bolt.
Preferably, the cross section of the middle part of the first guide shell is in a zigzag shape, and the bent part of the first guide shell adopts smooth transition.
Preferably, the metal net is arranged on the outer side of the corrugated pipe, and the surface of the metal net is wrapped with a plastic layer.
Preferably, the second guide shell is positioned at one end of the first guide shell and is provided with a plurality of cutting lines at equal intervals.
Compared with the prior art, the beneficial effects of the utility model are that: the first straight pipe is positioned at the second straight pipe and provided with a first guide cylinder, the second straight pipe is positioned at the first straight pipe and provided with a second guide cylinder, the first guide cylinder is positioned at the inner side of the second guide cylinder, the first guide cylinder and the second guide cylinder are both of metal elastic sheet structures, and the two guide cylinders are adopted, so that the liquid corrugated pipe can be reduced under the condition of not influencing the flow speed, and the expansion of the corrugated pipe is not influenced; the cross section of the middle part of the first guide cylinder is Z-shaped, and the bent part of the first guide cylinder is in smooth transition, so that the guide effect is good; the metal net is arranged on the outer side of the corrugated pipe, and the plastic layer wraps the surface of the metal net, so that the corrugated pipe can be protected.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a first straight pipe; 2. a first fixing plate; 3. a bellows; 4. a metal mesh; 5. an outer tube; 6. a pull rod; 7. a second fixing plate; 8. a first draft tube; 9. a second draft tube; 10. a second straight pipe.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a direct-buried external-pressure corrugated expansion joint includes a first straight pipe 1, an outer pipe 5, and a second straight pipe 10, a second fixing plate 7 is installed on an outer side of one end of the second straight pipe 10, a first fixing plate 2 is installed on an outer side of the other end of the second straight pipe 10, the first straight pipe 1 is located at one end of the second straight pipe 10, the outer pipe 5 is installed on one end of the second straight pipe 10, and the outer pipe 5 is located at one end of the second fixing plate 7 and connected to the second fixing plate 7 through a pull rod 6; the corrugated pipe 3 is arranged between the first fixing plate 2 and one end of the outer pipe 5, which is positioned on the second fixing plate 7; a first guide cylinder 8 is arranged at the position, located at the second straight pipe 10, of the first straight pipe 1, a second guide cylinder 9 is arranged at the position, located at the first straight pipe 1, of the second straight pipe 10, and the first guide cylinder 8 is located on the inner side of the second guide cylinder 9; the first guide cylinder 8 and the second guide cylinder 9 are both of metal elastic sheet structures; the pull rod 6 and the second fixing plate 7 are adjusted and fixed through bolts; the cross section of the middle part of the first guide cylinder 8 is Z-shaped, and the bent part of the first guide cylinder 8 is in smooth transition; the outer side of the corrugated pipe 3 is provided with a metal net 4, and the surface of the metal net 4 is wrapped with a plastic layer, the first straight pipe 1 is positioned at the second straight pipe 10 and is provided with a first guide cylinder 8, the second straight pipe 10 is positioned at the first straight pipe 1 and is provided with a second guide cylinder 9, the first guide cylinder 8 is positioned at the inner side of the second guide cylinder 9, the first guide cylinder 8 and the second guide cylinder 9 are both of metal elastic sheet structures, and the two guide cylinders are adopted, so that the liquid corrugated pipe can be reduced without influencing the flow rate, and the expansion and contraction of the corrugated pipe are not influenced; the cross section of the middle part of the first guide cylinder 8 is Z-shaped, and the bending part of the first guide cylinder 8 is in smooth transition, so that the guide effect is good; the metal net 4 is arranged on the outer side of the corrugated pipe 3, and the plastic layer is wrapped on the surface of the metal net 4, so that the corrugated pipe can be protected.
The utility model discloses a theory of operation is: the first straight pipe 1 is positioned at the second straight pipe 10 and is provided with a first guide cylinder 8, the second straight pipe 10 is positioned at the first straight pipe 1 and is provided with a second guide cylinder 9, the first guide cylinder 8 is positioned at the inner side of the second guide cylinder 9, the first guide cylinder 8 and the second guide cylinder 9 are both of metal elastic sheet structures, and the two guide cylinders are adopted, so that the liquid corrugated pipe can be reduced under the condition of not influencing the flow rate, and the expansion and contraction of the corrugated pipe are not influenced; the cross section of the middle part of the first guide cylinder 8 is Z-shaped, and the bending part of the first guide cylinder 8 adopts smooth transition, so that the guide effect is good; the metal net 4 is arranged on the outer side of the corrugated pipe 3, and the plastic layer is wrapped on the surface of the metal net 4, so that the corrugated pipe can be protected.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a direct-burried external pressure formula ripple expansion joint, includes first straight tube (1), outer tube (5) and second straight tube (10), its characterized in that: a second fixing plate (7) is mounted on the outer side of one end of the second straight pipe (10), a first fixing plate (2) is mounted on the outer side of the other end of the second straight pipe (10), an outer pipe (5) is mounted at one end, located on the second straight pipe (10), of the first straight pipe (1), and the outer pipe (5) is connected with the second fixing plate (7) at one end, located on the second fixing plate (7), of the second straight pipe through a pull rod (6); the corrugated pipe (3) is arranged between the first fixing plate (2) and one end of the outer pipe (5) positioned on the second fixing plate (7); a first guide cylinder (8) is arranged at the position, located on the second straight pipe (10), of the first straight pipe (1), a second guide cylinder (9) is arranged at the position, located on the first straight pipe (1), of the second straight pipe (10), and the first guide cylinder (8) is located on the inner side of the second guide cylinder (9); the first guide cylinder (8) and the second guide cylinder (9) are both of metal elastic sheet structures.
2. The direct-buried external pressure type bellow expansion joint as recited in claim 1, wherein: the pull rod (6) and the second fixing plate (7) are adjusted and fixed through bolts.
3. The direct-buried external pressure type bellow expansion joint as recited in claim 1, wherein: the cross section of the middle part of the first guide shell (8) is Z-shaped, and the bent part of the first guide shell (8) is in smooth transition.
4. The direct external pressure type bellow expansion joint as claimed in claim 1, wherein: the corrugated pipe is characterized in that a metal net (4) is arranged on the outer side of the corrugated pipe (3), and a plastic layer is wrapped on the surface of the metal net (4).
5. The direct-buried external pressure type bellow expansion joint as recited in claim 1, wherein: the second guide shell is positioned at one end of the first guide shell and is provided with a plurality of cutting lines at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220166976.6U CN217302096U (en) | 2022-01-21 | 2022-01-21 | Direct-buried external pressure type corrugated expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220166976.6U CN217302096U (en) | 2022-01-21 | 2022-01-21 | Direct-buried external pressure type corrugated expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217302096U true CN217302096U (en) | 2022-08-26 |
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ID=82925968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220166976.6U Active CN217302096U (en) | 2022-01-21 | 2022-01-21 | Direct-buried external pressure type corrugated expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217302096U (en) |
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2022
- 2022-01-21 CN CN202220166976.6U patent/CN217302096U/en active Active
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