CN214618357U

CN214618357U - Double-wall corrugated pipe connected by loose flange

Info

Publication number: CN214618357U
Application number: CN202022906717.6U
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: 2021-11-05
Anticipated expiration: 2030-12-07

Abstract

The utility model provides a loop flange connecting double-wall corrugated pipe, 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 provided with 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 an entity wave crest B, and also 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 entity wave crest A and the entity wave crest B, a plurality of pairs of connecting holes are respectively arranged in the two loop flanges along the axial direction, 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 discloses simple structure, connection convenience, sealing performance are good.

Description

Double-wall corrugated pipe connected by loose flange

Technical Field

The utility model belongs to double-walled bellows field, concretely relates to double-walled bellows is connected to loop flange.

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 double-walled bellows is connected to loop flange, including first double-walled bellows body and second double-walled bellows body, the surface of first double-walled bellows body and second double-walled bellows body all has integrated into one piece's crest from a left side to the right side in proper order, there is the trough between the crest, first double-walled bellows body is close to second double-walled bellows body department and is equipped with entity crest A, second double-walled bellows body is close to first double-walled bellows body department and is equipped with entity crest B, still include two loop flanges and threaded rod, each loop flange includes two fixed connection's semi-ring loop flange, two loop flanges are located the outside of entity crest A, entity crest B respectively, all be equipped with a plurality of pairs of connecting holes along the axial in two loop flanges, and the height of loop flange equals the height of crest, the height of the solid wave crests A and B is lower than that of the connecting holes, the number of the threaded rods is equal to the number of the pairs of the connecting holes, the threaded rods penetrate through the connecting holes in the loop flange, and the two ends of the threaded rods are screwed down by nuts to be fixedly connected with the first double-wall corrugated pipe body and the second double-wall corrugated pipe body.

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

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 schematic view of the overall structure of FIG. 1;

FIG. 4 is a schematic structural view of embodiment 2;

FIG. 5 is a schematic structural view of example 3;

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 second double-walled bellows body; 11. a card slot; 12. a sealing gasket; 13. a clamping block; 14. a solid peak B; 15. a solid peak A; 16. a step-type interface; 17. the inclined plane of the loop flange.

Detailed Description

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

Example 1:

as shown in fig. 1-3, a loose flange connected double-wall corrugated pipe comprises a first double-wall corrugated pipe body (1) and a second double-wall corrugated pipe body (10), the surfaces of the first double-wall corrugated pipe body (1) and the second double-wall corrugated pipe body (10) are sequentially provided with integrally formed wave crests (generally hollow wave crests) (2) from left to right, wave troughs (3) are arranged between the wave crests (2), a solid wave crest a (15) is arranged at a position of the first double-wall corrugated pipe body (1) close to the second double-wall corrugated pipe body (10), a solid wave crest B (14) is arranged at a position of the second double-wall corrugated pipe body (10) close to the first double-wall corrugated pipe body (1), the cross sections of the solid wave crest a (15) and the solid wave crest B (14) are square, and two loose flanges (specifically, namely, a loose flange a (6) and a loose flange B (9)) and a threaded rod (8), each loop flange comprises two semi-ring loop flanges fixedly connected, the two loop flanges are respectively positioned on the outer sides of a solid wave crest A (15) and a solid wave crest B (14), a plurality of pairs of connecting holes (7) are axially formed in the two loop flanges, the height of each loop flange is equal to that of each wave crest, the height of each solid wave crest A (15) and that of each solid wave crest B (14) are lower than that of each connecting hole (7), the number of threaded rods (8) is equal to the number of the connecting holes (7), the threaded rods (8) penetrate through the connecting holes (7) in the loop flanges, and the threaded rods (8) are screwed down by nuts (4) at the two ends of the threaded rods (8) to fixedly connect the first double-wall corrugated pipe body (1) and the second double-wall corrugated pipe body (10). The two ends of the threaded rod (8) are further provided with metal gaskets (5), and the metal gaskets (5) are located between the nut (4) and the loop flange A (6), between the nut (4) and the loop flange B (9). Meanwhile, a sealing gasket (12) is arranged at the joint of the first double-wall corrugated pipe body (1) and the second double-wall corrugated pipe body (10).

In this embodiment, the clamping grooves (11) are formed in the top and the bottom of the right side of the first double-wall corrugated pipe body (1), and the clamping blocks (13) matched with the clamping grooves (11) are arranged on the top and the bottom of the left side of the second double-wall corrugated pipe body (10).

During installation, a sealing gasket (12) is placed at the joint of the first double-wall corrugated pipe body (1) and the second double-wall corrugated pipe body (10), then the clamping block (13) is aligned to the clamping groove (11), then the semi-ring looping flange is placed on the side, away from the solid wave crest B (14), of the solid wave crest A (15), and the connecting holes (7) in the semi-ring looping flange and the solid wave crest B (14) are aligned. Then an installer inserts the threaded rod (8) into the connecting hole (7) for threaded connection, the installer places the metal gasket (5) on the outer side of the connecting hole (7), and then the installer fixes the metal gasket (5) and the threaded rod (8) by using the nut (4), so that the first double-wall corrugated pipe body (1) and the flange connecting pipe are fixed.

A step-shaped interface (16) is adopted between the two half-ring loose flanges, when a connecting hole (7) is just arranged in the step-shaped interface (16) (as shown in figure 3), the connecting hole (7) is inserted into the threaded rod (8), and when the metal gasket (5) and the threaded rod (8) are fixed by the nut (4), the two half-ring loose flanges are also fixed. When the stepped interface (16) is not provided with the connecting hole (7), a screw hole can be arranged at the stepped interface (16), and the two semi-ring loose flanges are fixedly connected by bolts.

Example 2:

as shown in fig. 4, the present embodiment is different from embodiment 1 in that the cross sections of the solid peaks a (15) and B (14) are right trapezoid (specifically, the width of the surface of the solid peak a (15) away from the first double-wall corrugated tube body (1) is greater than the width of the surface of the solid peak a (15) close to the first double-wall corrugated tube body (1), and the width of the surface of the solid peak B (14) away from the second double-wall corrugated tube body (10) is greater than the width of the surface of the solid peak B (14) close to the second double-wall corrugated tube body (10), so that the outer sides of the solid peaks a (15) and B (14) form an inclined surface), the side of the loop flange contacting with the solid wave crest A (15) and the solid wave crest B (14) is provided with an inclined plane (17) matched with the loop flange.

Example 3:

as shown in fig. 5, the difference between this embodiment and embodiment 1 is that the height of the solid peak a (15), the height of the solid peak B (14) are equal to the height of the peak, and the height of the connection hole (7) in the looper flange is higher than the height of the solid peak a (15) and the height of the solid peak B (14).

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. A double-walled bellows is connected to loose flange, 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 the 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 the position, close to the first double-wall corrugated pipe body, of the second double-wall corrugated pipe body, the two looper flanges and the threaded rod are further comprised, 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 each of the two looper flanges, the heights of the looper flanges are equal to the heights of the wave crests, the heights of the solid wave crests A and the solid wave crests B are lower than the heights of the connecting holes, the number of the threaded rods is equal to the number of the connecting holes in the looper flanges, 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.

2. The loose flange joint double wall corrugated pipe of claim 1, wherein the solid peaks a, B have a square cross-section.

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

4. The 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 provided with locking grooves, and the top and bottom of the left side of the second double-wall corrugated pipe body are provided with locking blocks matched with the locking grooves.

5. A loose flange joint double wall corrugated pipe as claimed in any one of claims 1 to 3 wherein the threaded rod is further provided with metal washers at both ends, the metal washers being located between the nut and the loose flange.

6. A loose flange joint double wall corrugated pipe according to any one of claims 1 to 3, wherein the height of the solid peaks A and B is equal to the height of the peaks, and the height of the solid peaks A and B is lower than the height of the connection holes in the loose flange.

7. A loose flange joint double wall corrugated pipe as claimed in any one of claims 1 to 3 wherein a sealing gasket is provided at the junction of the first double wall corrugated pipe body and the second double wall corrugated pipe body.