CN211039978U

CN211039978U - Hollow wall corrugated pipe

Info

Publication number: CN211039978U
Application number: CN201921926193.8U
Authority: CN
Inventors: 陶勇; 邵丹; 张武松
Original assignee: Chongqing Weston Pipe Technology Co ltd
Current assignee: Chongqing Weston Pipe Technology Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-07-17
Anticipated expiration: 2029-11-07

Abstract

The utility model belongs to the technical field of municipal construction, especially, hollow wall bellows, including outer pipe, inlayer pipe and the intermediate level of setting between outer pipe and inlayer pipe, equal circumference is equipped with the external screw thread on the both ends outer wall of outer pipe, circumference equidistance is fixed with a plurality of spring posts on the inner wall of outer pipe, the one end fixedly connected with lag that a plurality of spring posts are close to each other, and the outer wall of inner pipe and the inner wall cooperation installation of lag, the both ends of outer pipe all are provided with the adapter sleeve, the outer wall both sides of adapter sleeve all fixedly connected with installation piece, and be equipped with the mounting hole on the installation piece, equal threaded connection has the tube cap on the one end outer wall that two adapter sleeves kept away from each other, fixedly connected with the piece of suppressing on the inner wall of tube cap, the outside cover of suppression; the utility model discloses be convenient for the inlayer pipe resumes original shape, reduces deformation, further improves the wholeness ability of product, prolongs the life of bellows, and it is convenient to connect, can satisfy user's demand, is fit for promoting.

Description

Hollow wall corrugated pipe

Technical Field

The utility model relates to a municipal administration pipeline field especially relates to a well cavity wall bellows.

Background

The corrugated pipe mainly comprises a metal corrugated pipe, a corrugated expansion joint, a corrugated heat exchange pipe, a diaphragm capsule, a metal hose and the like. The metal corrugated pipe is mainly applied to the effects of compensating the thermal deformation of a pipeline, damping, absorbing the settlement deformation of the pipeline and the like, and is widely applied to the industries of petrifaction, instruments, aerospace, chemical industry, electric power, cement, metallurgy and the like. The corrugated pipe made of other materials such as plastics has irreplaceable effects in the fields of medium conveying, electric power threading, machine tools, household appliances and the like.

At present, the well cavity wall bellows that municipal construction used, when having the medium to pass in the bellows, cause impact and extrusion to the pipe wall easily, lead to the bellows to take place to warp, when the deformation degree of bellows is great, then can seriously influence the service quality of bellows, reduce the life of bellows, moreover, current bellows are connected and the installation is comparatively loaded down with trivial details, can't satisfy user's demand, for solving above-mentioned problem, provide a well cavity wall bellows in this application.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a cavity wall bellows has the inlayer pipe of being convenient for and resumes original shape, reduces deformation, further improves the wholeness ability of product, prolongs the life of bellows, and it is convenient to connect, can satisfy user's demand, is fit for the characteristics of popularization.

(II) technical scheme

For solving the problem, the utility model provides a cavity wall bellows, including outer pipe, inlayer pipe and the intermediate level of setting between outer pipe and inlayer pipe, equal circumference is equipped with the external screw thread on the both ends outer wall of outer pipe, circumference equidistance is fixed with a plurality of spring posts, and is a plurality of on the inner wall of outer pipe the one end fixedly connected with lag that the spring post is close to each other, and the outer wall of inlayer pipe and the inner wall cooperation installation of lag, the both ends of outer pipe all are provided with the adapter sleeve, the equal fixedly connected with installation piece in outer wall both sides of adapter sleeve, and be equipped with the mounting hole on the installation piece, two equal threaded connection has the tube cap on the one end outer wall that the adapter sleeve kept away from each other, fixedly connected with suppresses the piece on the inner wall of tube cap, the outside cover of suppressing piece is equipped with the rubber.

Preferably, the outer walls of the two ends of the outer layer pipe are fixedly connected with one end of an installation rod, and the other end of the installation rod is fixed with the side face of the connecting sleeve.

Preferably, the inner diameter of the protective sleeve is equal to the diameter of the inner-layer pipe, and the protective sleeve and the inner-layer pipe are the same in shape.

Preferably, the inner ring of the rubber ring is in contact with the outer wall of one end of the outer layer pipe, and the corrugation on the outer layer pipe is in an S-shaped structure.

Preferably, the connecting sleeve is arranged outside the outer-layer pipe, and the inner diameter of the connecting sleeve is larger than the diameter of the outer-layer pipe.

Preferably, the two groups of mounting blocks, the connecting sleeve and the pipe cover are respectively and symmetrically arranged on two sides of the outer-layer pipe.

The above technical scheme of the utility model has following profitable technological effect:

1. through the outer layer pipe, the inner layer pipe, the middle layer, the protective sleeve and the plurality of spring columns, on one hand, abrasion of the middle parts of the outer layer pipe and the inner layer pipe can be avoided, on the other hand, the inner layer pipe can be conveniently restored to the original shape, deformation is reduced, the overall performance of a product is further improved, and the service life of the corrugated pipe is prolonged;

2. through being provided with the tube cap, can prevent dust the bellows when not using to the cooperation has, support piece and rubber circle, has improved dustproof effect, and the setting of installation piece and mounting hole is convenient for install the bellows simultaneously, and the external screw thread setting of outer pipe can be used to the installation and the connection between a plurality of outer pipes, and it is convenient to connect, can satisfy user's demand, is fit for promoting.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of the present invention;

FIG. 3 is a side view of the outer tube, inner tube and intermediate layer of the present invention;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the utility model provides a well cavity wall bellows, including outer pipe 1, inner tube 2 and the intermediate level 3 of setting between outer pipe 1 and inner tube 2, equal circumference is equipped with external screw thread 101 on the both ends outer wall of outer pipe 1, circumference equidistance is fixed with a plurality of spring posts 4 on the inner wall of outer pipe 1, the one end fixedly connected with lag 5 that a plurality of spring posts 4 are close to each other, and the outer wall of inner tube 2 and the inner wall cooperation installation of lag 5, the both ends of outer pipe 1 all are provided with adapter sleeve 6, the equal fixedly connected with installation piece 7 in outer wall both sides of adapter sleeve 6, and be equipped with mounting hole 12 on the installation piece 7, equal threaded connection has tube cap 8 on the one end outer wall that two adapter sleeve 6 kept away from each other, fixedly connected with pressure block 9 on the inner wall of tube cap 8, the outside cover of pressure block 9 is equipped with rubber circle 10.

As shown in fig. 1, the outer walls of the two ends of the outer tube 1 are fixedly connected with one end of a mounting rod 11, and the other end of the mounting rod 11 is fixed with the side surface of the connecting sleeve 6.

It should be noted that the pressing block 9 and the rubber ring 10 are movably disposed in the inner ring of the connection sleeve 6, and the rubber ring 10 is used for sealing the port of the outer pipe 1, so as to improve the sealing effect of the corrugated pipe.

As shown in fig. 1, the inner diameter of the shield 5 is equal to the diameter of the inner tube 2, and both have the same shape.

It should be noted that, lag 5 and inlayer pipe 2 all are the corrugated structure, and under the elastic action of a plurality of spring posts 4, can resume lag 5's shape, and lag 5 drives inlayer pipe 2 motion, avoids inlayer pipe 2 to take place deformation.

As shown in fig. 1-2, the inner ring of the rubber ring 10 contacts with the outer wall of one end of the outer layer tube 1, and the corrugation on the outer layer tube 1 is in an "S" shape.

As shown in fig. 1-2, the connection sleeve 6 is disposed outside the outer pipe 1, and the inner diameter of the connection sleeve 6 is larger than the diameter of the outer pipe 1.

As shown in fig. 1, two sets of mounting blocks 7, connecting sleeves 6 and pipe covers 8 are respectively and symmetrically arranged on two sides of the outer pipe 1.

The working principle is as follows: through the outer layer pipe 1, the inner layer pipe 2 and the middle layer 3 arranged between the outer layer pipe 1 and the inner layer pipe 2, the outer walls at two ends of the outer layer pipe 1 are circumferentially provided with the external threads 101, the inner wall of the outer layer pipe 1 is circumferentially fixed with the plurality of spring columns 4 at equal intervals, when a medium passes through the inner layer pipe 2, the inner wall of the inner layer pipe 2 is extruded, so that the inner layer pipe 2 is deformed, and through the arrangement of the plurality of spring columns 4 and the protecting sleeve 5, and under the elastic action of the plurality of spring columns 4, the protecting sleeve 5 is extruded, the protecting sleeve 5 drives the inner layer pipe 2 to move, so that the inner layer pipe 2 is restored to the original shape, the deformation is reduced, the overall performance of a product is further improved, the service life of the corrugated pipe is prolonged, wherein the elastic coefficients of the plurality of spring columns 4 can be selected according to actual conditions, when in use, the pipe cover 8 is rotated and taken down, and then the locking bolt is inserted into the mounting hole 12, thereby fix 7, be convenient for install the bellows, equal circumference is equipped with external screw thread 101 on the both ends outer wall of outer pipe 1, can be used to installation and connection between a plurality of outer pipes 1, and it is convenient to connect, can satisfy user's demand, is fit for promoting.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The hollow wall corrugated pipe comprises an outer layer pipe (1), an inner layer pipe (2) and a middle layer (3) arranged between the outer layer pipe (1) and the inner layer pipe (2), and is characterized in that external threads (101) are circumferentially arranged on the outer walls of two ends of the outer layer pipe (1), a plurality of spring columns (4) are circumferentially and equidistantly fixed on the inner wall of the outer layer pipe (1), a plurality of spring columns (4) are fixedly connected with a protective sleeve (5) at one end close to each other, the outer wall of the inner layer pipe (2) is matched and installed with the inner wall of the protective sleeve (5), connecting sleeves (6) are arranged at two ends of the outer layer pipe (1), mounting blocks (7) are fixedly connected to two sides of the outer wall of each connecting sleeve (6), mounting holes (12) are formed in the mounting blocks (7), and pipe covers (8) are threadedly connected to the outer walls of two ends, far away from each other, of the connecting sleeves (6), the inner wall of the pipe cover (8) is fixedly connected with a pressing block (9), and a rubber ring (10) is sleeved outside the pressing block (9).

2. The corrugated pipe with hollow walls as claimed in claim 1, wherein the outer walls of the two ends of the outer pipe (1) are fixedly connected with one end of a mounting rod (11), and the other end of the mounting rod (11) is fixed with the side surface of the connecting sleeve (6).

3. A hollow-wall bellows according to claim 1, wherein the inner diameter of the protective sheath (5) is equal to the diameter of the inner tube (2) and both are of the same shape.

4. A corrugated tube with hollow wall as claimed in claim 1, wherein the inner ring of the rubber ring (10) is in contact with the outer wall of one end of the outer tube (1), and the corrugation on the outer tube (1) is in an "S" shape.

5. A hollow-walled bellows as claimed in claim 1 wherein the nipple (6) is provided on the outside of the outer tube (1), the nipple (6) having an internal diameter greater than the diameter of the outer tube (1).

6. A hollow wall bellows according to claim 1, wherein two sets of the mounting blocks (7), the connecting sleeves (6) and the tube covers (8) are symmetrically arranged on both sides of the outer tube (1).