CN210950387U

CN210950387U - Thrust-free corrugated expansion joint

Info

Publication number: CN210950387U
Application number: CN201921877513.5U
Authority: CN
Inventors: 华顺鑫; 华建春
Original assignee: Wuxi Huabo Metal Corrugated Hose Co ltd
Current assignee: Wuxi Huabo Metal Corrugated Hose Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-07-07
Anticipated expiration: 2029-11-04

Abstract

The utility model belongs to the technical field of expansion joints, in particular to a thrust-free corrugated expansion joint, which comprises a left end pipe, a right end pipe and a corrugated pipe, wherein the left end pipe and the right end pipe are respectively fixed at two ends of the corrugated pipe; the inner sides of the two flanges are provided with operating mechanisms positioned below the corrugated pipe, and the inner sides of the two flanges are provided with auxiliary guide mechanisms positioned above the corrugated pipe; the utility model discloses a ripple expansion joint when using, when the installation, through the operating device who sets up, drive two-way screw rod through the rotatory operation handle and rotate, can make the flange at both ends move to the outside, be favorable to the accurate installation of expansion joint to simplified the installation process, through supplementary guiding mechanism, make the steady synchronous motion of flange, can make the expansion joint more stable after the installation, improved the life of expansion joint.

Description

Thrust-free corrugated expansion joint

Technical Field

The utility model belongs to the technical field of the expansion joint, concretely relates to no thrust type ripple expansion joint.

Background

The corrugated expansion energy-saving expansion function is realized mainly by a corrugated pipe, the function and strength design of the corrugated expansion joint is mainly the design of the corrugated pipe, the corrugated pipe can be stretched, compressed or bent by different designs and combinations of the corrugated pipe, so that the corrugated expansion joint in three basic forms of axial direction, transverse direction and angular direction is formed, and the thrust-free expansion joint is characterized in that a compact annular steam chamber is delicately used in the drawing and planning by applying the Pascal theory in hydrodynamics, and two annular pressure surfaces are respectively arranged in the steam chamber, one is a fixed steam chamber inner end surface, the other is an elastic pipe shoulder annular surface sealed in the steam chamber and can move along with the elastic pipe.

When the original thrust-free corrugated expansion joint is installed into a pipeline system, the installation is more complicated, at least two operators are generally needed for auxiliary installation, the installation is easy to have deviation, the normal use of the thrust-free corrugated expansion joint is influenced, and the service life of the thrust-free corrugated expansion joint is shortened.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that exists among the prior art, the utility model provides a no thrust type ripple expansion joint has safe in utilization convenience, easily installation and long service life characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: a thrust-free corrugated expansion joint comprises a left end pipe, a right end pipe and a corrugated pipe, wherein the left end pipe and the right end pipe are respectively fixed at two ends of the corrugated pipe; the inner sides of the two flanges are provided with operating mechanisms positioned below the corrugated pipe, and the inner sides of the two flanges are provided with auxiliary guide mechanisms positioned above the corrugated pipe; the operating mechanism comprises a bidirectional screw and a threaded sleeve, and the auxiliary guide mechanism comprises an auxiliary guide post and a guide pipe.

As a preferred technical scheme of the utility model, the threaded sleeve pipe is fixed two respectively on the opposite face of flange to the symmetric distribution is two threaded hole has all been seted up in the threaded sleeve pipe, the both ends of two-way screw rod are respectively through screw hole and both ends the threaded sleeve pipe screw thread closes soon and connects.

As an optimized technical proposal of the utility model, the bidirectional screw rod is sleeved with and fixed with an operating handle.

As a preferred technical scheme of the utility model, supplementary guide post is fixed two respectively on the flange to the symmetric distribution seted up in the stand pipe and supplied two the connecting hole of supplementary guide post tip embedding.

As a preferred technical scheme of the utility model, the left end pipe with the outside of right end pipe is overlapped respectively and is established and install spring steel plate, just spring steel plate's both ends still respectively with supplementary guide post with thread bush fixed connection.

As a preferred technical scheme of the utility model, the left end pipe with the confession has been seted up respectively to the lateral surface tip of right end pipe the connecting groove of bellows both ends embedding, just after the bellows both ends imbed respectively in the connecting groove, establish at its outside cover and install the enhancement lantern ring.

As a preferred technical scheme of the utility model, the bellows with strengthen the lantern ring and be OCr18Ni9 stainless steel.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a no thrust type ripple expansion joint when using, when the installation, through the operating device who sets up, drive two-way screw rod through the rotatory operation handle and rotate, can make the flange at both ends move to the outside, be favorable to the accurate installation of expansion joint to simplified the installation process, through supplementary guiding mechanism, made the steady synchronous motion of flange, can make the expansion joint more stable after the installation, improved the life of expansion joint.

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 view of the present invention;

fig. 2 is a schematic front sectional structural view of the operating mechanism of the present invention;

fig. 3 is a schematic front sectional structural view of the auxiliary guide mechanism of the present invention;

fig. 4 is an enlarged schematic view of a portion a of fig. 1 according to the present invention;

in the figure: 1. a left end tube; 2. a right end tube; 3. a bellows; 4. a flange; 5. an auxiliary guide post; 6. a guide tube; 7. a spring steel plate; 8. an operating handle; 9. a bidirectional screw; 10. a threaded bushing; 11. a threaded hole; 12. connecting holes; 13. a reinforcing collar; 14. and a connecting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: a thrust-free corrugated expansion joint comprises a left end pipe 1, a right end pipe 2 and a corrugated pipe 3, wherein the left end pipe 1 and the right end pipe 2 are respectively fixed at two ends of the corrugated pipe 3, flanges 4 are respectively fixed at one ends, far away from the corrugated pipe 3, of the left end pipe 1 and the right end pipe 2, when the thrust-free corrugated expansion joint is used, the corrugated expansion joint is installed in a pipeline system by using bolts through the flanges 4 at the two ends, and the left end pipe 1 and the right end pipe 2 are respectively fixedly connected with the corrugated pipe 3 in a welding mode, so that the connection strength and the sealing property are ensured; the inner sides of the two flanges 4 are provided with operating mechanisms positioned below the corrugated pipe 3, and the inner sides of the two flanges 4 are provided with auxiliary guide mechanisms positioned above the corrugated pipe 3; operating device includes two-way screw rod 9 and threaded sleeve 10, and supplementary guiding mechanism includes supplementary guide post 5 and stand pipe 6, is installing the utility model discloses a during no thrust type ripple inflation, make flange 4 at both ends to the outside fine motion through operating device earlier, recycle the bolt fastening in pipe-line system, convenient and fast has just simplified the installation process, and supplementary guiding mechanism makes flange 4 at both ends can steady synchronous motion.

Specifically, according to fig. 1 and fig. 2, in this embodiment, threaded sleeve 10 is fixed respectively on the opposite face of two flanges 4 to the symmetric distribution all offers threaded hole 11 in two threaded sleeve 10, and the both ends of two-way screw rod 9 are passed through threaded hole 11 respectively and are connected with the threaded sleeve 10 screw thread of both ends soon, install the utility model discloses a during the inflation of thrust-free type ripple, rotate two-way screw rod 9, utilize the screw thread of two-way screw rod 9 and both ends threaded sleeve 10 to close the cooperation soon for threaded sleeve 10 moves and pushes up flange 4 to the outside.

Specifically, as shown in fig. 1 and fig. 2, in this embodiment, the two-way screw 9 is fixedly sleeved with the operating handle 8, and the two-way screw 9 is rotated by the operating handle 8, so that the operation is safer and more labor-saving.

Specifically, according to fig. 1 and fig. 3, in this embodiment, the auxiliary guide posts 5 are respectively fixed on the two flanges 4 and symmetrically distributed, connecting holes 12 for the ends of the two auxiliary guide posts 5 to be inserted are formed in the guide tube 6, and after the threaded sleeve 10 pushes the flanges 4, the auxiliary guide posts 5 can also move along the connecting holes 12 of the guide tube 6, so as to ensure the smooth movement of the flanges 4.

Specifically, as shown in fig. 1, in this embodiment, the spring steel plate 7 is respectively installed outside the left end pipe 1 and the right end pipe 2 in a sleeved manner, and both ends of the spring steel plate 7 are respectively and fixedly connected with the auxiliary guide post 5 and the threaded sleeve 10, after the threaded sleeve 10 pushes the flange 4, the auxiliary guide post 5 can move along with the threaded sleeve 10 through the spring steel plate 7, so as to avoid the upper and lower deviations of the corrugated expansion joint, and therefore, the upper and lower synchronicity of the movement of the flange 4 can be realized.

Specifically, according to fig. 1 and fig. 4, in this embodiment, the connection grooves 14 for embedding the two ends of the corrugated tube 3 are respectively formed in the end portions of the outer side surfaces of the left end tube 1 and the right end tube 2, and the reinforcing lantern rings 13 are installed outside the corrugated tube 3 after the two ends of the corrugated tube 3 are respectively embedded into the connection grooves 14, the two ends of the corrugated tube 3 are respectively sleeved on the end portions of the outer side surfaces of the left end tube 1 and the right end tube 2 through the connection grooves 14, and then are welded and formed, the reinforcing lantern rings 13 are sleeved outside the joint and cover the joint, so that the stability and the sealing performance of the left end tube 1, the right end tube 2 and the corrugated tube 3.

Specifically, as shown in fig. 1 and 4, in this embodiment, the corrugated tube 3 and the reinforcing collar 13 are both made of OCr18Ni9 stainless steel, and since OCr18Ni9 stainless steel has good corrosion resistance, heat resistance, low-temperature strength and mechanical properties, the strength of the connection between the left end tube 1 and the right end tube 2 and the corrugated tube 3 can be ensured.

The utility model discloses a theory of operation and use flow: the utility model discloses an when the installation, earlier arrange the device in pipe-line system in, rotate two-way screw rod 9, utilize two-way screw rod 9 and both ends screw sleeve 10's screw thread to close the cooperation soon for screw sleeve 10 moves flange 4 to the outside and pushes up, makes flange 4 fine motion to the outside, and the contact pipeline can, rethread bolt is with flange 4 and pipeline fixed connection.

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

1. The utility model provides a no thrust type ripple expansion joint, includes left end pipe (1), right-hand member pipe (2) and bellows (3), left end pipe (1) with right-hand member pipe (2) are fixed respectively the both ends of bellows (3), left end pipe (1) with the one end of keeping away from bellows (3) on right-hand member pipe (2) all is fixed with flange (4), its characterized in that: the left end pipe (1) and the right end pipe (2) are fixedly connected with the corrugated pipe (3) respectively in a welding mode; an operating mechanism positioned below the corrugated pipe (3) is arranged on the inner sides of the two flanges (4), and an auxiliary guide mechanism positioned above the corrugated pipe (3) is arranged on the inner sides of the two flanges (4); the operating mechanism comprises a bidirectional screw (9) and a threaded sleeve (10), and the auxiliary guide mechanism comprises an auxiliary guide post (5) and a guide pipe (6).

2. The thrust-free corrugated expansion joint as set forth in claim 1, wherein: the threaded sleeves (10) are respectively fixed on the opposite surfaces of the two flanges (4) and are symmetrically distributed, threaded holes (11) are formed in the two threaded sleeves (10), and the two ends of the bidirectional screw (9) are respectively in threaded connection with the threaded sleeves (10) at the two ends through the threaded holes (11).

3. A thrust-free corrugated expansion joint as set forth in claim 2, wherein: an operating handle (8) is fixedly sleeved on the bidirectional screw (9).

4. The thrust-free corrugated expansion joint as set forth in claim 1, wherein: the auxiliary guide posts (5) are respectively fixed on the two flanges (4) and are symmetrically distributed, and connecting holes (12) for embedding the end parts of the two auxiliary guide posts (5) are formed in the guide pipe (6).

5. The thrust-free corrugated expansion joint as set forth in claim 1, wherein: the left end pipe (1) with the outside of right end pipe (2) is established respectively the cover and is installed spring steel board (7), just the both ends of spring steel board (7) still respectively with supplementary guide post (5) with threaded sleeve (10) fixed connection.

6. The thrust-free corrugated expansion joint as set forth in claim 1, wherein: the outer side surface end part of the left end pipe (1) and the right end pipe (2) is respectively provided with a connecting groove (14) for embedding the two ends of the corrugated pipe (3), and the two ends of the corrugated pipe (3) are respectively embedded into the connecting grooves (14) and then sleeved with a reinforcing lantern ring (13).

7. The thrust-free corrugated expansion joint as set forth in claim 6, wherein: the corrugated pipe (3) and the reinforcing collar (13) are both made of OCr18Ni9 stainless steel.