CN212251646U

CN212251646U - Angular corrugated pipe

Info

Publication number: CN212251646U
Application number: CN202020218557.3U
Authority: CN
Inventors: 虞德强
Original assignee: Jiangsu Aidi Electromechanical Equipment Industry Co ltd
Current assignee: Jiangsu Aidi Electromechanical Equipment Industry Co ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-12-29
Anticipated expiration: 2030-02-27

Abstract

The utility model discloses an angular bellows relates to bellows technical field, including bellows one, bellows two and attach fitting, attach fitting's both ends respectively with bellows one and the one end of bellows two is connected, bellows one with the equal coaxial ring that welds that is provided with of one end of bellows two, just the coaxial first location step that is provided with of terminal surface of welding the ring, attach fitting's both ends all be provided with the corresponding second location step of first location step, bellows one with contained angle between the bellows two is 0 ~ 180. The utility model discloses the bellows with straight tube formula links to each other with the attach fitting of later stage processing and reaches the effect of angle bellows to the angle advantage of the existing general angle bellows of angle bellows that the subassembly formed and constitutes has avoided the short problem of general angle bellows life again, can exert perfect performance advantage in special installation and operation requirement.

Description

Angular corrugated pipe

Technical Field

The utility model relates to a bellows technical field especially relates to an angular corrugated pipe.

Background

The corrugated pipe is formed by connecting annular corrugations, is a closed thin-shell container with axial elasticity and foot elasticity, has the performance similar to that of an industrial spring, and can axially extend and compress or bend angularly under the action of external force.

The application field of the corrugated pipe as a sensitive element, a pneumatic element and a mechanical sealing element is very wide. The corrugated pipe is composed of a plurality of annular waves, and the corrugated pipe has three wave types specified in the national JB/T6169-2006 metal corrugated pipe standard: s-type, omega-type, U-type. The corrugated pipes have various use environments, so that the corrugated pipes are not in the form of straight pipes which are common in the discordant life and industry, but in some special installation environments, such as non-horizontal or non-vertical equipment, the straight pipe type corrugated pipes cannot be installed without being changed.

The corrugated pipe is often used in sealing equipment and connecting equipment by people, the earlier used corrugated pipe structure is a straight pipe type, but the structure of the corrugated pipe is changed along with different use environments, the corrugated pipe which can be simply and conveniently installed in the original horizontal or vertical installation environment gradually shows the shortages of the corrugated pipe when facing some connecting mechanisms with angles, so that the angular corrugated pipe is born, the so-called angular corrugated pipe not only bends the straight pipe type corrugated pipe into a certain angle to meet the use and installation requirements, but the angular corrugated pipe has a defect that the service life of the corrugated pipe is short, and the original straight pipe type corrugated pipe is easy to break at the bent part.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that, overcome prior art's shortcoming, provide an angular bellows.

In order to solve the technical problem, the technical scheme of the utility model as follows:

the utility model provides an angular corrugated pipe, includes bellows one, bellows two and attach fitting, attach fitting's both ends respectively with bellows one and bellows two's one end is connected, bellows one with bellows two's one end all coaxial is provided with welds the ring, just weld the coaxial first location step that is provided with of terminal surface of ring, attach fitting's both ends all be provided with the corresponding second location step of first location step, bellows one with contained angle between the bellows two is 0 ~ 180.

As an optimal scheme of angle bellows, wherein: the connector comprises two butt joint parts for butt joint and a connecting part for connecting the two butt joint parts, wherein the butt joint parts are in butt joint with each other in a welding manner, and an included angle between the connecting part and the butt joint parts is an obtuse angle.

As an optimal scheme of angle bellows, wherein: connecting portion include the connecting pipe of a plurality of butt joint in proper order, the cross-section of connecting pipe is isosceles trapezoid, the both ends of connecting pipe and on the butt joint portion with the tip that connecting portion are connected all is provided with the flange that is used for the butt joint.

As an optimal scheme of angle bellows, wherein: one end of the connecting pipe is provided with an insertion pipe used for extending into the connecting pipe adjacent to the connecting pipe, and the other end of the connecting pipe is provided with a slot for the insertion pipe on the connecting pipe adjacent to the inserting pipe to extend into; an insertion tube which is used for extending into the insertion groove is arranged at the end part of any butt joint part facing the connecting part, and an insertion groove for the insertion tube to extend into is arranged at the end part of the other butt joint part facing the connecting part; and after any two connecting pipes are butted or the butting parts are butted with the connecting parts, the outer wall of the insertion pipe is attached to the inner wall of the slot.

As an optimal scheme of angle bellows, wherein: and a sealing gasket is arranged on the outer wall of the insertion pipe.

The utility model has the advantages that:

(1) the utility model connects the straight pipe type corrugated pipe with the later-processed connecting joint to achieve the effect of the angular corrugated pipe, the angular corrugated pipe formed by the components has the angle advantage of the common angular corrugated pipe, the problem of short service life of the common angular corrugated pipe is avoided, and the perfect performance advantage can be exerted in the special installation and use requirements;

(2) the utility model discloses set up first location step at the tip of welding the ring, set up the second location step at the tip of attach fitting correspondingly, through the location effect of first location step and second location step during butt joint, can guarantee to weld the axiality when ring and attach fitting are connected to guarantee the axiality when two straight tube bellows and attach fitting are connected;

(3) the connecting joint comprises butt joint parts and connecting parts, wherein the connecting parts are formed by sequentially butting a plurality of connecting pipes, and the included angle between the two butt joint parts can be adjusted by adjusting the number of the butted connecting pipes, so that the angle of the angular corrugated pipe is adjusted, and the angular corrugated pipe meets more use and installation requirements;

(4) the utility model is provided with the insertion pipe at one end of the connecting pipe and the slot at the other end, so that after the connecting pipes are butted, one end of any connecting pipe extends into the previous connecting pipe, thereby ensuring the connection sealing performance between the connecting pipes; and the outer wall of the insertion pipe is provided with a sealing gasket, so that the connection sealing performance between the connecting pipes is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of an angular corrugated pipe provided by the present invention;

fig. 2 is a schematic structural view of the angular corrugated pipe provided by the present invention after adjustment;

FIG. 3 is a schematic structural diagram of a connecting tube;

FIG. 4 is an end view of a weld ring;

FIG. 5 is a schematic end view of the interface;

wherein: 100. a first corrugated pipe; 200. a second corrugated pipe; 300. connecting a joint; 400. welding a ring; 410. a first positioning step; 310. a docking portion; 320. a connecting portion; 311. a second positioning step; 321. a connecting pipe; 322. a flange; 323. and (4) inserting a tube.

Detailed Description

In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

Referring to fig. 1 to 5, in view of this, the present embodiment provides an angular corrugated tube, a main body of the angular corrugated tube includes a first corrugated tube 100, a second corrugated tube 200 and a connecting joint 300, the first corrugated tube 100 and the second corrugated tube 200 are connected by the connecting joint 300, and an included angle between the first corrugated tube 100 and the second corrugated tube 200 is between 0 ° and 180 °.

Specifically, the connection joint 300 includes two abutting portions 310 and a connecting portion 320. The connecting portion 320 connects the two abutting portions 310, and an included angle between the two abutting portions 310 is set to be 0 to 180 degrees. Each abutting portion 310 is coaxially abutted with one end of one of the corrugated pipes, and an included angle between the connecting portion 320 and the abutting portion 310 is an obtuse angle, so that the included angle between the first corrugated pipe 100 and the second corrugated pipe 200 is equal to the included angle between the two abutting portions 310.

The welding ring 400 is coaxially arranged at one end of each of the first bellows 100 and the second bellows 200, the first positioning step 410 is coaxially arranged on the outer end face of the welding ring 400, and the second positioning step 311 is correspondingly and coaxially arranged on the end part where the two abutting parts 310 are connected with the welding ring 400. When the butt-joint portion 310 is butt-jointed with the welding ring 400, the first positioning step 410 is aligned with the second positioning step 311, and then the joint of the first positioning step and the second positioning step is welded, so that the coaxiality between the butt-joint portion 310 and the welding ring 400 can be ensured, and the coaxiality between the corrugated pipe and the butt-joint portion 310 can be ensured.

The connection part 320 includes a plurality of connection pipes 321 which are sequentially coupled to each other. The connecting pipes 321 have the same shape, and each connecting pipe 321 has an isosceles trapezoid cross section. When the adjacent connection pipes 321 are butted against each other, end faces where waists of the adjacent connection pipes 321 are located are butted against each other. Flanges 322 for butt joint are arranged at two ends of each connecting pipe 321, after one end of each two adjacent connecting pipes 321 is in butt joint, the two flanges 322 are completely attached, and then the two flanges 322 can be fixed by installing fixing bolts in mounting holes in the flanges 322.

An insertion tube 323 extending into the previous connection tube 321 is disposed at one end of each connection tube 321, and an insertion slot into which the insertion tube 323 extends is disposed at the other end of each connection tube 321. When two adjacent connecting pipes 321 are butted, the inserting pipe 323 at the end part of the next connecting pipe 321 is coaxial with the butted end of the previous connecting pipe 321, and the inserting pipe 323 extends into the slot, and the outer wall of the inserting pipe 323 is attached to the inner wall of the slot.

Flanges 322 are also provided at the ends of the two abutting portions 310. An insertion groove into which the insertion tube 323 extends is correspondingly arranged at the end part of one abutting part 310 connected with the connecting part 320, and the insertion tube 323 extending into the insertion groove is correspondingly arranged at the end part of the other abutting part 310 connected with the connecting part 320. When the abutting part 310 abuts against the connecting pipe 321 at the end part, the corresponding insertion pipe 323 extends into the corresponding slot, so that the connection tightness between the abutting part 310 and the connecting pipe 321 is ensured.

Preferably, a sealing gasket is disposed on an outer side wall of the insertion tube 323, so that when the insertion tube 323 extends into the insertion slot, the sealing gasket is located in a gap between the insertion tube 323 and the insertion slot, and further improves the connection sealing performance between the connection tubes 321 and between the docking portion 310 and the connection portion 320.

When the corrugated pipe is used or installed, the number of the connecting pipes 321 butted in the connecting part 320 is adjusted according to the use or installation requirement, then the two butting parts 310 are respectively installed at the two ends of the connecting part 320, so as to adjust the included angle between the two butting parts 310, then the end parts of the first corrugated pipe 100 and the second corrugated pipe 200 are respectively installed at the end parts of the two butting parts 310, and at this time, the included angle between the first corrugated pipe 100 and the second corrugated pipe 200 is more equal to the included angle between the two butting parts 310.

Therefore, the utility model discloses bellows with straight tube type is connected with the attach fitting 300 of later stage processing and is reached the effect of angle bellows to the angle advantage of the existing general angle bellows of angle bellows that the subassembly formed and constitutes has avoided the short problem of general angle bellows life again, can exert perfect performance advantage in special installation and operation requirement.

In addition to the above embodiments, the present invention may have other embodiments; all the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The utility model provides an angular bellows, includes bellows one (100), bellows two (200) and attach fitting (300), the both ends of attach fitting (300) respectively with bellows one (100) and the one end of bellows two (200) is connected its characterized in that: one end of the first corrugated pipe (100) and one end of the second corrugated pipe (200) are both coaxially provided with a welding ring (400), the end face of the welding ring (400) is coaxially provided with a first positioning step (410), the two ends of the connecting joint (300) are both provided with second positioning steps (311) corresponding to the first positioning steps (410), and the included angle between the first corrugated pipe (100) and the second corrugated pipe (200) is 0-180 degrees.

2. An angular bellows according to claim 1, wherein: the connection joint (300) comprises two butt joint parts (310) for butt joint with the welding rings (400) and a connection part (320) for connecting the two butt joint parts (310), and an included angle between the connection part (320) and the butt joint parts (310) is an obtuse angle.

3. An angular bellows according to claim 2, wherein: connecting portion (320) include connecting pipe (321) that a plurality of docks in proper order, the cross-section of connecting pipe (321) is isosceles trapezoid, the both ends of connecting pipe (321) and on butt joint portion (310) with the tip that connecting portion (320) are connected all is provided with flange (322) that are used for the butt joint.

4. An angular bellows according to claim 3, wherein: one end of the connecting pipe (321) is provided with an insertion pipe (323) used for extending into the connecting pipe (321) adjacent to the connecting pipe, and the other end of the connecting pipe (321) is provided with a slot for the insertion pipe (323) on the connecting pipe (321) adjacent to the connecting pipe to extend into;

an insertion pipe (323) used for extending into the insertion groove is arranged at the end part, facing the connecting part (320), of any one butt joint part (310), and an insertion groove for the insertion pipe (323) to extend into is arranged at the end part, facing the connecting part (320), of the other butt joint part (310);

after any two connecting pipes (321) are in butt joint or the butt joint part (310) is in butt joint with the connecting part (320), the outer wall of the insertion pipe (323) is attached to the inner wall of the insertion groove.

5. An angular bellows according to claim 4, wherein: and a sealing gasket is arranged on the outer wall of the insertion pipe (323).