CN214222305U

CN214222305U - Loose flange connection double-wall corrugated pipe convenient to connect

Info

Publication number: CN214222305U
Application number: CN202022908546.0U
Authority: CN
Inventors: 王�华; 周成立; 张阿柯
Original assignee: Kangmingyuan Jingshan New Material Technology Development Co ltd
Current assignee: Kangmingyuan Jingshan New Material Technology Development Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-09-17
Anticipated expiration: 2030-12-07

Abstract

The utility model provides a loop flange connection double-wall corrugated pipe which is convenient to connect, comprising a first double-wall corrugated pipe body and a second double-wall corrugated pipe body, the surfaces of the first double-wall corrugated pipe body and the second double-wall corrugated pipe body are provided with wave crests, wave troughs are arranged between the wave crests, the first double-wall corrugated pipe body is provided with a solid wave crest A, the second double-wall corrugated pipe body is provided with a solid wave crest B, the double-wall corrugated pipe further comprises two loop flanges and a threaded rod, each loop flange comprises two semi-ring loop flanges which are fixedly connected, the two loop flanges are respectively positioned at the outer sides of the solid wave crest A and the solid wave crest B, the height of the loop flange is equal to the height of the wave crest, the number of the threaded rods is equal to the logarithm of the connecting holes, the threaded rods penetrate through the connecting holes in the loop flange, and nuts are screwed down at two ends of the threaded rod to fixedly connect the first double-wall corrugated pipe body and the second double-wall corrugated pipe body. The utility model has the advantages of simple structure, connect convenient, sealing performance is good.

Description

Loose flange connection double-wall corrugated pipe convenient to connect

Technical Field

The utility model belongs to double-walled bellows field, concretely relates to looper flange joint double-walled bellows convenient to connect.

Background

The double-wall corrugated pipe is a novel pipe with an outer wall with an annular structure and a smooth inner wall, and after development and improvement for more than ten years, the double-wall corrugated pipe is developed from a single variety to a complete product series, and the production process and the use technology are mature.

The traditional double-wall corrugated pipe generally adopts connection modes such as rubber ring connection, electric melting socket joint, heat shrinkable sleeve connection, electric melting belt connection and the like, but the connection modes have poor sealing performance and high construction environment requirements, and water is easy to seep out from the connection part of the double-wall corrugated pipe during water conveying, so that the double-wall corrugated pipe is not beneficial to use.

Therefore, there is a need to provide a new connection method for double-wall corrugated pipes to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a loose flange connected double-wall corrugated pipe convenient to connect, which comprises a first double-wall corrugated pipe body and a second double-wall corrugated pipe body, the surfaces of the first double-wall corrugated pipe body and the second double-wall corrugated pipe body are sequentially provided with integrally formed wave crests from left to right, a wave trough is arranged between the wave crests, the first double-wall corrugated pipe body is provided with an entity wave crest A near the second double-wall corrugated pipe body, the second double-wall corrugated pipe body is provided with an entity wave crest B near the first double-wall corrugated pipe body, the loose flange comprises two fixed-connected half-ring loose flanges, the two loose flanges are respectively positioned at the outer sides of the entity wave crest A and the entity wave crest B, a plurality of pairs of connecting holes are axially arranged in the two loose flanges, the number of the threaded rods is equal to the number of the connecting holes, the threaded rod penetrates through a connecting hole in the loose flange and is screwed down at two ends of the threaded rod by nuts so as to fixedly connect the first double-wall corrugated pipe body and the second double-wall corrugated pipe body. The wave crest of the first double-wall corrugated pipe body, which is close to the solid wave crest A, and the wave crest of the second double-wall corrugated pipe body, which is close to the solid wave crest B, are solid notched wave crests, namely, notches are formed in the solid wave crests.

Preferably, the cross sections of the solid peaks A and B are square,

preferably, the cross section of the solid wave crest a and/or the solid wave crest B is a right trapezoid, and the surface of the semi-ring loose flange contacting the solid wave crest a and the solid wave crest B is provided with an inclined surface matched with the semi-ring loose flange.

Preferably, the clamping grooves are formed in the top and the bottom of the right side of the first double-wall corrugated pipe body, and the clamping blocks matched with the clamping grooves are arranged at the top and the bottom of the left side of the second double-wall corrugated pipe body.

Preferably, metal gaskets are further arranged at two ends of the threaded rod and located between the nut and the loop flange.

Preferably, the height of the loop flange is equal to that of the wave crest, and the height of the solid wave crest A and the height of the solid wave crest B are lower than that of the connecting hole.

Preferably, a sealing gasket is arranged at the joint of the first double-wall corrugated pipe body and the second double-wall corrugated pipe body.

The utility model has the advantages that:

1. utilize the loose flange, through the cooperation of entity crest, connecting hole, threaded rod, the installer of being convenient for connects first double-walled bellows body and the double-walled bellows body of second fast, has reduced the environmental requirement to the construction.

2. The sealing gasket improves the sealing performance and prevents water from leaking from the joint of the first double-wall corrugated pipe body and the second double-wall corrugated pipe body, so that zero leakage is caused at the joint of the first double-wall corrugated pipe body and the second double-wall corrugated pipe body, and the problem of poor sealing effect of the traditional double-wall corrugated pipe is solved.

3. Through the cooperation of metal gasket, the nut of being convenient for is screwed up fixedly to be favorable to improving the joint strength of first double-walled bellows body and the double-walled bellows body of second.

4. Through the cooperation of draw-in groove and fixture block, improved the fixed effect of first double-walled bellows body and the double-walled bellows body of second, the installer of being convenient for installs.

5. Through the inclined plane that entity crest A, entity crest B and looper flange were equipped with, make things convenient for the fixed of looper flange to be favorable to first double-walled bellows body and the connection of second double-walled bellows body to be fixed.

6. And a semi-ring loose flange is adopted, so that the rotation is convenient, and the alignment of the connecting holes is convenient.

Drawings

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

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic view of a half-ring loose flange connection;

FIG. 5 is a schematic structural view of example 2;

FIG. 6 is a cross-sectional view taken at C-C of FIG. 5;

in the figure: 1. a first double-walled bellows body; 2. wave crest; 3. a trough of a wave; 4. a nut; 5. a metal gasket; 6. a loop flange A; 7. connecting holes; 8. a threaded rod; 9. a loop flange B; 10. a solid notched peak; 11. a second double-walled bellows body; 12. a sealing gasket; 13. a clamping block; 14. a solid peak B; 15. a solid peak A; 16. a card slot; 17. a notch; 18. a step-type interface; 19. the inclined plane of the loop flange; 20. the entity has a short peak.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Example 1:

as shown in fig. 1 to 4, a loose flange connection double-wall corrugated pipe convenient for connection comprises a first double-wall corrugated pipe body and a second double-wall corrugated pipe body, wherein the surfaces of the first double-wall corrugated pipe body and the second double-wall corrugated pipe body are sequentially provided with integrally formed wave crests (generally hollow wave crests) from left to right, wave troughs are formed between the wave crests, the first double-wall corrugated pipe body is provided with an entity wave crest a near the second double-wall corrugated pipe body, the second double-wall corrugated pipe body is provided with an entity wave crest B near the first double-wall corrugated pipe body, the cross sections of the entity wave crest a and the entity wave crest B are square, the loose flange connection double-wall corrugated pipe further comprises two loose flanges (specifically, a loose flange a and a loose flange B) and a threaded rod, each loose flange comprises two loose flanges fixedly connected, and the two loose flanges are respectively positioned on the entity wave crests a and the threaded rod, The outer side of the entity wave crest B, the height of the loop flanges is equal to that of the wave crest, a plurality of pairs of connecting holes are axially formed in the two loop flanges, the height of the entity wave crest A and the height of the entity wave crest B are lower than that of the connecting holes, the number of the threaded rods is equal to the number of the connecting holes, the threaded rods penetrate through the connecting holes in the loop flanges, and the threaded rods are screwed up by nuts at the two ends of the threaded rods to fixedly connect the first double-wall corrugated pipe body and the second double-wall corrugated pipe body. And metal gaskets are arranged at two ends of the threaded rod and are positioned between the nut and the loop flange A and between the nut and the loop flange B. Meanwhile, a sealing gasket is arranged at the joint of the first double-wall corrugated pipe body and the second double-wall corrugated pipe body. The wave crest of the first double-wall corrugated pipe body, which is close to the solid wave crest A, and the wave crest of the second double-wall corrugated pipe body, which is close to the solid wave crest B, are solid notched wave crests, namely, notches are formed in the solid wave crests. The breach makes things convenient for the installation of threaded rod, also utilizes the tightening of nut. The shape of the notch can be one of a trapezoid notch, an arc notch, a triangle notch and the like. In this embodiment, a trapezoidal notch.

In this embodiment, the draw-in groove has all been seted up to top and bottom on first double-walled bellows body right side, the left top and the bottom of second double-walled bellows body are equipped with the fixture block with draw-in groove complex.

When the semi-ring loop flange is installed, the sealing ring is placed at the joint of the first double-wall corrugated pipe body and the second double-wall corrugated pipe body, the clamping block is aligned to the clamping groove, the semi-ring loop flange is placed on the side, away from the solid wave crest B, of the solid wave crest A, and the connecting holes in the semi-ring loop flange and the solid wave crest B are aligned. And then an installer inserts the threaded rod into the connecting hole for threaded connection, places the metal gasket outside the connecting hole, and fixes the metal gasket and the threaded rod by using a nut, so that the first double-wall corrugated pipe body and the flange connecting pipe are fixed.

The stepped interface is adopted between the two half-ring loose flanges, when the connecting hole is just arranged in the stepped interface, the connecting hole is inserted into the threaded rod, and when the metal gasket and the threaded rod are fixed by the nut, the two half-ring loose flanges are also fixed. When the stepped interface is not provided with a connecting hole, a screw hole can be formed in the stepped interface, and the two half-ring loose flanges are fixedly connected by bolts.

Example 2:

as shown in fig. 5 to 6, the present embodiment differs from embodiment 1 as follows:

1. the cross sections of the solid wave crests A and the solid wave crests B are right-angled trapezoids (the width of the surface, away from the first double-wall corrugated pipe body, of the solid wave crest A is larger than that of the surface, close to the first double-wall corrugated pipe body, of the solid wave crest A, the width of the surface, away from the second double-wall corrugated pipe body, of the solid wave crest B is larger than that of the surface, close to the second double-wall corrugated pipe body, of the solid wave crest B, so that the outer sides of the solid wave crests A and the solid wave crests B form an inclined surface), and the surfaces, in contact with the solid wave crests A and the solid wave crests B, of the.

2. The wave crest of the first double-wall corrugated pipe body, which is close to the solid wave crest A, and the wave crest of the second double-wall corrugated pipe body, which is close to the solid wave crest B, are all solid short wave crests, and the height of each solid short wave crest is lower than that of the threaded rod.

The above mentioned embodiments are only embodiments of the present invention, not limiting the scope of the present invention, and all the equivalent replacements made by the contents of the specification and the drawings or the direct or indirect applications in other related technical fields are included in the scope of the present invention.

Claims

1. The utility model provides a lap joint flange joint double-walled bellows convenient to connect, includes first double-walled bellows body and the double-walled bellows body of second, its characterized in that: the corrugated pipe comprises a first double-wall corrugated pipe body, a second double-wall corrugated pipe body, two looper flanges and a threaded rod, wherein the surfaces of the first double-wall corrugated pipe body and the second double-wall corrugated pipe body are sequentially provided with integrally formed wave crests from left to right, a wave trough is arranged between the wave crests, a solid wave crest A is arranged at a position, close to the second double-wall corrugated pipe body, of the first double-wall corrugated pipe body, a solid wave crest B is arranged at a position, close to the first double-wall corrugated pipe body, of the second double-wall corrugated pipe body, each looper flange comprises two fixedly connected semi-ring looper flanges, the two looper flanges are respectively positioned at the outer sides of the solid wave crest A and the solid wave crest B, a plurality of pairs of connecting holes are axially arranged in the two looper flanges, the number of the threaded rods is equal to the number of the connecting holes, the threaded rods penetrate through the connecting holes in the looper flanges, and are screwed down by nuts at two ends of the threaded rods so as to fixedly connect the first double-wall corrugated pipe body and the second double-wall corrugated pipe body, the wave crest of the first double-wall corrugated pipe body, which is close to the solid wave crest A, and the wave crest of the second double-wall corrugated pipe body, which is close to the solid wave crest B, are solid notched wave crests, namely, notches are formed in the solid wave crests.

2. A lap-flange double-walled corrugated pipe easy to connect according to claim 1, wherein the cross-section of said solid peaks A, B is square.

3. The loose flange connection double-wall corrugated pipe convenient to connect according to claim 1, wherein the cross section of the solid wave crest A and/or the solid wave crest B is a right trapezoid, and the surface of the semi-ring loose flange contacting the solid wave crest A and the solid wave crest B is provided with a slope matched with the semi-ring loose flange.

4. The easy-to-connect loose flange connection double-wall corrugated pipe as claimed in any one of claims 1 to 3, wherein the top and bottom of the right side of the first double-wall corrugated pipe body are both provided with a slot, and the top and bottom of the left side of the second double-wall corrugated pipe body are provided with a block fitting with the slot.

5. A loose flange joint double wall corrugated pipe for easy connection according to any one of claims 1 to 3, wherein both ends of the threaded rod are further provided with metal washers, and the metal washers are located between the nut and the loose flange.

6. A loose flange connection double-wall corrugated pipe convenient for connection according to any one of claims 1 to 3, wherein the height of the loose flange is equal to the height of the wave crest, and the height of the solid wave crest A and the height of the solid wave crest B are lower than the height of the connection hole.

7. A lap-flange joint double-walled bellows for facilitating joint as claimed in any one of claims 1-3, wherein a sealing gasket is provided at the joint of the first double-walled bellows body and the second double-walled bellows body.