CN215568647U - Novel corrosion-resistant mpp double-wall corrugated pipe - Google Patents

Novel corrosion-resistant mpp double-wall corrugated pipe Download PDF

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Publication number
CN215568647U
CN215568647U CN202120944621.0U CN202120944621U CN215568647U CN 215568647 U CN215568647 U CN 215568647U CN 202120944621 U CN202120944621 U CN 202120944621U CN 215568647 U CN215568647 U CN 215568647U
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China
Prior art keywords
corrugated pipe
bellows
fixed block
screw thread
annular fixed
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CN202120944621.0U
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Chinese (zh)
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葛超杰
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Hangzhou Xinhailu Pipe Industry Co ltd
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Hangzhou Xinhailu Pipe Industry Co ltd
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Abstract

The utility model discloses a novel corrosion-resistant mpp double-wall corrugated pipe, which relates to the technical field of double-wall corrugated pipes and comprises a first corrugated pipe, a second corrugated pipe and an annular fixed block, wherein both ends of the annular fixed block are rotatably connected with thread movable sleeves, both sides of the annular fixed block are respectively connected with external thread sleeves which are mutually clamped with the first corrugated pipe and the second corrugated pipe through the thread movable sleeves, and the first corrugated pipe, the second corrugated pipe and the external thread sleeves are mutually connected through interference fit. When the corrugated pipe is connected, the two groups of external thread sleeves are respectively clamped at one ends of the first corrugated pipe and the second corrugated pipe in an interference fit mode, so that the external thread sleeves are not easy to separate from the first corrugated pipe and the second corrugated pipe respectively, the first corrugated pipe and the second corrugated pipe are respectively connected to two sides of the annular fixed block through the interaction between the external thread sleeves and the thread movable sleeves, and the first corrugated pipe and the second corrugated pipe are connected more firmly due to the fact that the first corrugated pipe and the second corrugated pipe are connected in a butt joint mode through threads.

Description

Novel corrosion-resistant mpp double-wall corrugated pipe
Technical Field
The utility model relates to the technical field of double-wall corrugated pipes, in particular to a novel corrosion-resistant mpp double-wall corrugated pipe.
Background
The type of the corrugated pipe: the corrugated pipe mainly comprises a metal corrugated pipe, a corrugated expansion joint, a corrugated heat exchange pipe, a diaphragm and a metal hose and the like, wherein 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, is widely applied to the industries of petrifaction, instruments, aerospace, chemical industry, electric power, cement, metallurgy and the like, and has irreplaceable effects in the fields of medium conveying, electric power threading, machine tools, household appliances and the like.
The mutual cooperation between pothook and the spout is passed through at the junction to current double-walled bellows, and includes first groove section, second groove section and spread groove in the spout, inserts the pothook during use in the first groove section to rotate along the direction of spread groove, fall into the second groove section at last, carry out the block, accomplish the connection of double-walled bellows.
Through mutually supporting between pothook and the spout among the prior art, when using, the double-walled bellows produces and rocks, causes the droing between pothook and the spout easily to what make its connection is insecure, can lead to material such as outside gas to permeate tubular product, causes the corruption to tubular product.
SUMMERY OF THE UTILITY MODEL
Based on the above, the utility model aims to provide a novel corrosion-resistant mpp double-wall corrugated pipe, so as to solve the technical problems that the double-wall corrugated pipe shakes during use in the prior art, so that the clamping hook and the sliding groove are easy to fall off, the connection is not firm, and substances such as external gas can permeate into the pipe and corrode the pipe.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a novel corrosion-resistant mpp double-walled bellows, includes first bellows, second bellows and annular fixed block, the both ends of annular fixed block are all rotated and are connected with the screw thread movable sleeve, annular fixed block both sides are passed through the screw thread movable sleeve is connected with the external screw thread cover with the mutual block of first bellows, second bellows respectively, and passes through interference fit interconnect between first bellows, second bellows and the external screw thread cover, the outside of annular fixed block is provided with two sets of fixed snap rings of mutually supporting, there is solid fixed ring in the outside of external screw thread cover through threaded connection.
Through adopting above-mentioned technical scheme, be in order to utilize interference fit with two sets of external screw thread cover block respectively in the one end of first bellows and second bellows for external screw thread cover respectively with be difficult for breaking away from between first bellows and the second bellows, recycle the solid fixed ring in rotatory two sets of external screw thread cover outsides, and make it remove to the centre, and extrude fixed snap ring, make and be connected more stable between first bellows and the second bellows.
The utility model is further provided with sealing rings arranged between the fixing rings and the fixing snap rings, and two groups of symmetrical bolt holes are arranged at the connecting parts between the two sides of the two groups of fixing snap rings.
Through adopting above-mentioned technical scheme, be in order to utilize the sealing washer further to improve the gas tightness of junction, reuse the effect of bolt hole, insert the bolt hole with the bolt, fix two sets of fixed snap rings.
The corrugated pipe is further provided with clamping grooves at one end inside the external thread sleeve, and matching grooves matched with the external thread sleeve are formed in the inner walls of one ends of the first corrugated pipe and the second corrugated pipe.
Through adopting above-mentioned technical scheme, in order to utilize the draw-in groove to advance the external screw thread cover with first bellows, the fixed block of second bellows, recycle the effect in cooperation groove for pipeline transportation space avoids receiving the influence when external screw thread cover installs.
In summary, the utility model mainly has the following beneficial effects: when the corrugated pipe is connected, firstly, two groups of external thread sleeves are respectively clamped at one end of the first corrugated pipe and one end of the second corrugated pipe in an interference fit manner, so that the external thread sleeves are not easy to separate from the first corrugated pipe and the second corrugated pipe respectively; and then, two groups of fixing snap rings are fixedly wrapped outside the annular fixing block, the fixing rings outside the two groups of external thread sleeves are rotated, the fixing rings move towards the middle and extrude the fixing snap rings, so that the connection between the first corrugated pipe and the second corrugated pipe is more stable, and in summary, the connection part between the first corrugated pipe and the second corrugated pipe is fixed in a layer-by-layer mode in an outwards crossed mode, the whole sealing effect is enhanced, and the phenomenon that external gas and other substances permeate the pipe is avoided, so that the pipe is corroded.
Drawings
FIG. 1 is a schematic illustration of an explosive structure according to the present invention;
FIG. 2 is a schematic view of the full-section structure of the present invention;
FIG. 3 is an enlarged view of the utility model at A in FIG. 2;
FIG. 4 is a schematic view of the combined structure of the present invention.
In the figure: 1. a first bellows; 2. a second bellows; 3. an external thread sleeve; 4. a card slot; 5. an annular fixed block; 6. a threaded movable sleeve; 7. fixing the snap ring; 8. bolt holes; 9. a mating groove; 10. a fixing ring; 11. and (5) sealing rings.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The following describes an embodiment of the present invention based on its overall structure.
A novel corrosion-resistant mpp double-wall corrugated pipe is shown in figures 1-4 and comprises a first corrugated pipe 1, a second corrugated pipe 2 and an annular fixed block 5, wherein both ends of the annular fixed block 5 are rotatably connected with thread movable sleeves 6, both sides of the annular fixed block 5 are respectively connected with an external thread sleeve 3 which is mutually clamped with the first corrugated pipe 1 and the second corrugated pipe 2 through the thread movable sleeves 6, the thread movable sleeves 6 are connected through rotation, when the first corrugated pipe 1 and the second corrugated pipe 2 are best matched, butt joint interference is avoided, the external thread sleeve 3 and the thread movable sleeve 6 are conveniently and better connected with each other, the first corrugated pipe 1, the second corrugated pipe 2 and the external thread sleeve 3 are mutually connected through interference fit, the first corrugated pipe 1 and the second corrugated pipe 2 are firmly clamped in the external thread sleeve 3 through interference fit, two groups of fixed snap rings 7 which are mutually matched are arranged on the outer side of the annular fixed block 5, the outer side of the external thread sleeve 3 is connected with a fixing ring 10 through threads, and the fixing snap ring 7 is further fastened and sealed through the fixing ring 10.
Referring to fig. 1-4, a sealing ring 11 is disposed between the fixing ring 10 and the fixing snap ring 7, the sealing ring 11 further improves the air tightness of the joint, two symmetrical bolt holes 8 are disposed at the joint between the two sides of the two fixing snap rings 7, and bolts are inserted into the bolt holes 8 by the bolt holes 8 to fix the two fixing snap rings 7.
Referring to fig. 1, 2 and 3, a clamping groove 4 is formed at one end of the inside of the external thread sleeve 3, the first corrugated pipe 1 and the second corrugated pipe 2 are fixedly clamped into the external thread sleeve 3 by the clamping groove 4, a matching groove 9 matched with the external thread sleeve 3 is formed on the inner wall of one end of the first corrugated pipe 1 and the inner wall of one end of the second corrugated pipe 2, and the pipeline transportation space is prevented from being affected by the installation of the external thread sleeve 3 by the matching groove 9.
The working principle of the utility model is as follows: during connection, firstly, two groups of external thread sleeves 3 are clamped at one ends of a first corrugated pipe 1 and a second corrugated pipe 2 respectively through interference fit, wherein the first corrugated pipe 1 and the second corrugated pipe 2 are clamped in the two groups of external thread sleeves 3 respectively through a clamping groove 4, and then the pipeline transportation space is prevented from being influenced by the installation of the external thread sleeves 3 under the action of a matching groove 9, so that the external thread sleeves 3 are not easy to separate from the first corrugated pipe 1 and the second corrugated pipe 2, and then the first corrugated pipe 1 and the second corrugated pipe 2 are respectively connected to two sides of an annular fixed block 5 through the interaction between the external thread sleeves 3 and a thread movable sleeve 6; utilize the bolt to pass the bolt hole afterwards with the fixed parcel in the 5 outsides of annular fixed block of two sets of fixed snap rings 7, the solid fixed ring 10 in the 3 outsides of rotatory two sets of external screw thread covers of rethread, take sealing washer 11 together to the centre and remove, until with fixed snap ring 7 extrusion each other, make the more stable of being connected between first bellows 1 and the second bellows 2, to sum up show, the junction between first bellows 1 and the second bellows 2, outwards cross-fixing layer upon layer, make holistic leakproofness effect strengthen, avoid material infiltration tubular product such as outside gas, cause the corruption to the tubular product.
Although embodiments of the present invention have been shown and described, the present embodiments are merely illustrative of the present invention and are not intended to limit the present invention, and the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and those skilled in the art can make modifications, substitutions, variations, etc. of the embodiments as required without departing from the principle and spirit of the present invention, but within the scope of the claims of the present invention.

Claims (3)

1. The utility model provides a novel corrosion-resistant mpp double-walled bellows, includes first bellows (1), second bellows (2) and annular fixed block (5), its characterized in that: the both ends of annular fixed block (5) are all rotated and are connected with screw thread movable sleeve (6), annular fixed block (5) both sides are passed through screw thread movable sleeve (6) are connected with respectively with first bellows (1), the external screw thread cover (3) of the mutual block of second bellows (2), and through interference fit interconnect between first bellows (1), second bellows (2) and external screw thread cover (3), the outside of annular fixed block (5) is provided with two sets of retaining ring (7) of mutually supporting, there is solid fixed ring (10) in the outside of external screw thread cover (3) through threaded connection.
2. A novel corrosion-resistant mpp double-wall corrugated pipe as claimed in claim 1, wherein: and a sealing ring (11) is arranged between the fixing ring (10) and the fixing clamp ring (7), and two groups of symmetrical bolt holes (8) are formed in the joint between the two sides of the fixing clamp ring (7).
3. A novel corrosion-resistant mpp double-wall corrugated pipe as claimed in claim 1, wherein: draw-in groove (4) have all been seted up to the inside one end of external screw thread cover (3), cooperation groove (9) of mutually supporting with external screw thread cover (3) have all been seted up to the inner wall of first bellows (1), second bellows (2) one end.
CN202120944621.0U 2021-05-06 2021-05-06 Novel corrosion-resistant mpp double-wall corrugated pipe Active CN215568647U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120944621.0U CN215568647U (en) 2021-05-06 2021-05-06 Novel corrosion-resistant mpp double-wall corrugated pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120944621.0U CN215568647U (en) 2021-05-06 2021-05-06 Novel corrosion-resistant mpp double-wall corrugated pipe

Publications (1)

Publication Number Publication Date
CN215568647U true CN215568647U (en) 2022-01-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120944621.0U Active CN215568647U (en) 2021-05-06 2021-05-06 Novel corrosion-resistant mpp double-wall corrugated pipe

Country Status (1)

Country Link
CN (1) CN215568647U (en)

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