CN214618358U

CN214618358U - Semi-ring loop flange joint double-wall corrugated pipe convenient to connect

Info

Publication number: CN214618358U
Application number: CN202022906719.5U
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 semi-ring 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 a loop flange and a threaded rod, the loop flange comprises two semi-ring loop flanges which are fixedly connected, the semi-ring loop flanges are positioned on one side of the solid wave crest A far away from the solid wave crest B, a plurality of pairs of connecting holes are axially arranged in the semi-ring looping flange and the solid wave crest B, the threaded rod passes through the connecting holes in the semi-ring looping flange and the solid wave crest B, 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

Semi-ring loop flange joint double-wall corrugated pipe convenient to connect

Technical Field

The utility model belongs to double-walled bellows field, concretely relates to semi-ring loop 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 pair of semi-ring loop flange joint double-walled bellows convenient to connect, 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, just entity crest A, entity crest B's cross section is square, still includes loop flange and threaded rod, the loop flange includes two fixed connection's semi-ring loop flange, the semi-ring loop flange is located one side that entity crest A kept away from entity crest B, the semi-ring loop flange, All be equipped with a plurality of pairs of connecting holes along the axial in the entity crest B, entity crest A's height is less than the height of entity crest B internal connection hole, the quantity of threaded rod equals with the logarithm of connecting hole, the threaded rod passes semi-ring looper flange, entity crest B internal connection hole to screw up with the nut at the both ends of threaded rod and be used for fixed connection first double-wall bellows body and the double-wall bellows body of second, that crest of being close to entity crest A of first double-wall bellows body to and that crest of being close to entity crest B of second double-wall bellows body are entity breach crest, set up jaggedly promptly on the entity crest.

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

Or the cross section of the solid wave crest A is in a right trapezoid shape, and the surface of the semi-ring loop flange, which is in contact with the solid wave crest A, is provided with an inclined surface matched with the semi-ring loop 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 are located between the nut and the half-ring loose flange, and between the nut and the solid wave crest B.

Preferably, the wave crest of the first double-wall corrugated pipe body close to the solid wave crest a and the wave crest of the second double-wall corrugated pipe body close to the solid wave crest B are both solid short wave crests, and the height of each solid short wave crest is lower than that of the threaded rod.

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, has improved the bulk strength of first double-walled bellows body and the double-walled bellows body of second. 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.

2. 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.

3. 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.

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

5. 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 schematic structural view of embodiment 3;

FIG. 7 is a cross-sectional view taken at C-C of FIG. 6;

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; 7. connecting holes; 8. a threaded rod; 9. a solid peak B; 10. a solid notched peak; 11. a second double-walled bellows body; 12. a sealing gasket; 13. A clamping block; 14. a solid wave crest A with a right-angled trapezoid cross section; 15. the inclined plane of the semi-ring looping flange; 16. a card slot; 17. a notch; 18. a step-type interface; 19. a solid wave crest A with a square cross section; 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. 1-4, a semi-ring loose flange connection double-wall corrugated pipe convenient for connection comprises a first double-wall corrugated pipe body (1) and a second double-wall corrugated pipe body (11), wherein the surfaces of the first double-wall corrugated pipe body (1) and the second double-wall corrugated pipe body (11) are sequentially provided with integrally formed wave crests (2) (generally hollow wave crests) from left to right, wave troughs (3) are formed between the wave crests (2), a solid wave crest a is arranged at a position, close to the second double-wall corrugated pipe body (11), of the first double-wall corrugated pipe body (1), a solid wave crest B (9) is arranged at a position, close to the first double-wall corrugated pipe body (1), the cross section of the solid wave crest a is in a right trapezoid shape, the cross section of the solid wave crest B (9) is in a square shape, a loose flange (6) and a threaded rod (8), the looper flange comprises two fixedly connected semi-ring looper flanges, the semi-ring looper flanges are located one side of an entity crest A far away from an entity crest B (9), a plurality of pairs of connecting holes (7) are axially formed in the semi-ring looper flanges and the entity crest B (9), the height of the entity crest A is lower than that of the connecting holes (7) in the entity crest B (9), 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 semi-ring looper flanges and the entity crest B (9), and nuts (4) are screwed up 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 (11). 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 half-ring loose flange, between the nut (4) and the solid wave crest 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 (11). The wave crest of the first double-wall corrugated pipe body (1) close to the solid wave crest A and the wave crest of the second double-wall corrugated pipe body (11) close to the solid wave crest B (9) are both solid notched wave crests (10), namely, notches (17) are formed in the solid wave crests. The gap (17) facilitates installation of the threaded rod (8) and also utilizes screwing of the nut (4). The shape of the notch (17) 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 clamping grooves (16) 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 (16) are arranged on the top and the bottom of the left side of the second double-wall corrugated pipe body (11).

In this embodiment, the solid wave crest a is a solid wave crest a (14) with a right trapezoid cross section (the width of the side of the solid wave crest a away from the first double-wall corrugated pipe body (1) is greater than the width of the side of the solid wave crest a close to the first double-wall corrugated pipe body (1), so that the left side of the solid wave crest a forms an inclined surface), and the side of the half-ring loose flange contacting with the solid wave crest a is provided with an inclined surface (15) of the half-ring loose flange matched with the inclined surface.

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 (11), then a clamping block (13) is aligned to a clamping groove (16), then the semi-ring looping flange is placed on the side, away from the solid wave crest B (9), of the solid wave crest A, and the connecting holes (7) in the semi-ring looping flange and the solid wave crest B (9) 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.

Adopt notch cuttype interface (18) between two semi-ring looper flanges, when just in time being equipped with connecting hole (7) in notch cuttype interface (18), insert connecting hole (7) at threaded rod (8) to when fixing metal shim (5) and threaded rod (8) with nut (4), also fixed two semi-ring looper flanges. When the stepped interface (18) is not provided with the connecting hole (7), a screw hole can be arranged at the stepped interface (18), and the two semi-ring loose flanges are fixed by bolts.

Example 2:

as shown in fig. 5, the present embodiment is different from embodiment 1 in that the solid peak a is a solid peak a (19) having a square cross section.

Example 3:

as shown in fig. 6 to 7, the present embodiment is different from embodiment 1 in that the peak of the first double-wall corrugated tube body (1) close to the solid peak a and the peak of the second double-wall corrugated tube body (11) close to the solid peak B (9) are both solid short peaks (20), and the height of the solid short peaks (20) is lower than that of the threaded rod (8).

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 semi-ring loop 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 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, wave troughs are formed 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 loop flange further comprises two fixedly connected half-ring loop flanges, the half-ring loop flange is positioned at one side, far away from the solid wave crest B, of the solid wave crest A, a plurality of pairs of connecting holes are formed in the half-ring loop flange and the solid wave crest B along the axial direction, the height of the solid wave crest A is lower than that of the connecting holes in the solid wave crest B, the number of the threaded rods is equal to that of the connecting holes in the half-loop flange and the solid wave crest B, and the threaded rods penetrate through the connecting holes in the half-loop flange and the solid wave crest B, the two ends of the threaded rod are screwed down 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.

2. The easy-to-connect half-ring loose-flange double-wall corrugated pipe according to claim 1, wherein the cross-sections of the solid wave crests A and B are square.

3. The easy-to-connect half-ring-and-loop-flange double-wall corrugated pipe as claimed in claim 1, wherein the cross section of the solid wave crest A is a right trapezoid, and the side of the half-ring-and-loop-flange contacting the solid wave crest A is provided with a slope surface matching with the side.

4. The easy-to-connect half-ring loose-flange 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 slots, 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 slots.

5. The half-ring loose-flange connection double-wall corrugated pipe convenient to connect of any one of claims 1 to 3, wherein metal gaskets are further arranged at two ends of the threaded rod and are positioned between the nut and the half-ring loose-flange, the nut and the solid wave crest B.

6. The half-ring loose-flange double-wall corrugated pipe convenient to connect of any one of claims 1 to 3, wherein the wave crest of the first double-wall corrugated pipe body close to the solid wave crest A and the wave crest of the second double-wall corrugated pipe body close to the solid wave crest B are solid short wave crests, and the height of the solid short wave crests is lower than that of the threaded rods.

7. The half-ring loose-flange double-wall corrugated pipe convenient to connect of any one of claims 1 to 3, wherein a sealing gasket is arranged at the joint of the first double-wall corrugated pipe body and the second double-wall corrugated pipe body.