Plate strip structure for spiral winding pipe

Abstract

The plate strip structure for the spiral winding pipe comprises a pipe wall profile, the pipe wall profile is of a hollow structure and comprises an outer-layer pipe wall and an inner-layer pipe wall which are parallel to each other, and side walls connected to the two ends of the inner-layer pipe wall and the two ends of the outer-layer pipe wall, and a horizontally-arranged connecting wall is arranged between the side walls on the two sides; the outer-layer pipe wall is provided with a trapezoidal groove which is concave inwards and a filling groove which is concave inwards, the groove bottoms of the trapezoidal groove and the filling groove extend downwards to form a first supporting rib and a second supporting rib, and a plurality of cross-shaped structures are formed in the connecting positions of the first supporting rib and the connecting wall and the connecting positions of the second supporting rib and the connecting wall. The multiple cross-shaped structures are supported in the pipe wall profile, the bending resistance provided by the trapezoidal grooves and the ring stiffness provided by the glass fiber reinforced plastics in the filling grooves are matched, so that the overall supporting strength of the pipe wall of the structure is higher, and each cross-shaped structure forms an independent support; even if a certain cross structure deforms, other cross structures cannot be affected, and the structure is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of pipes, in particular to a plate strip structure for spirally wound pipes. Background Art

[0002] As an innovative pipe structure, spiral-wound pipe represents significant technological advancement in both its manufacturing process and material selection. While traditional pipe manufacturing often relies on mold forming or welding, spiral-wound pipe is formed by spirally wrapping plastic strips. This process not only simplifies the production process but also improves the pipe's adaptability and durability.

[0003] In the production process of spirally wound pipes, the plate strip is the basic component of the pipe, and its structural design is of vital importance. The traditional plate strip structure may not meet the requirements of spirally wound pipes in terms of strength, sealing and durability. For example, the Chinese utility model patent with patent application number 202320367279.1 discloses a PVC vertical rib hollow wall reinforced winding pipe, a hollow square tube, which is spirally wound around the axis, and the hollow square tube is provided with a first side wall, a second side wall, an inner wall and an outer wall; a vertical rib is provided in the middle of the hollow square tube, and the vertical rib connects the inner wall and the outer wall; a covering layer, the covering layer covers the outer wall of the hollow square tube, and the covering layer includes an adhesion part, an upper covering layer and a lower covering layer. The adhesion part is provided between the adjacent first side wall and the second side wall of the hollow square tube, the upper covering layer is provided on the outer wall, and the lower covering layer is provided on the inner wall. In this structure, the inner wall of the hollow square tube is supported by arranging vertical ribs in the hollow square tube, thereby improving the strength of the hollow square tube.

[0004] However, in the above structure, due to its relatively simple structure, when subjected to external pressure, it is supported only by the side walls and vertical ribs. Once a certain structure is bent and deformed, the entire hollow square tube structure will collapse, causing the tube wall to deform and no longer provide support. Therefore, its structure is relatively unstable. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a plate strip structure for a spirally wound pipe.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The plate and strip structure for spirally wound pipes includes a pipe wall profile, which is a hollow structure and respectively includes an outer pipe wall and an inner pipe wall parallel to each other, and side walls connected at both ends of the inner pipe wall and the outer pipe wall. A horizontally arranged connecting wall is provided between the side walls on both sides, and the outer pipe wall is provided with a trapezoidal groove recessed inwardly and a filling groove recessed inwardly. The bottom of the trapezoidal groove extends vertically downwardly toward the inside of the pipe wall with a first supporting rib, and the bottom of the filling groove extends vertically downwardly toward the inside of the pipe wall with a second supporting rib. After the first and second supporting ribs are connected to the connecting wall, they continue to extend downward to connect with the inner pipe wall. The connection between the first and second supporting ribs and the connecting wall forms a cross structure, and the cross structure forms a support inside the pipe wall profile.

[0008] Furthermore, the trapezoidal groove is wide on the outside and narrow on the inside, and there are two groups of filling grooves, which are symmetrically arranged on both sides of the trapezoidal groove.

[0009] Furthermore, the filling groove is filled with glass fiber reinforced plastic.

[0010] Furthermore, two groups of the second support ribs are provided, the two groups of the second support ribs are parallel to each other and are respectively connected to both sides of the bottom of the filling groove, and the two groups of the second support ribs form two groups of cross structures below the filling groove.

[0011] In the present invention, a buckle structure is also provided on the tube wall profile, and the buckle structure includes a sealing buckle connected to one side of the inner tube wall and a connecting buckle connected to one side of the outer tube wall. The sealing buckle and the connecting buckle are respectively located on both sides of the tube wall profile, and the other side of the inner tube wall is concave inward near the edge position to form a sealing slot for matching the sealing buckle, and the other side of the outer tube wall is concave inward near the edge position to form a connecting slot for matching the connecting buckle.

[0012] Furthermore, a third support rib extends vertically downward inward from the bottom of the connecting slot, and the third support rib continues to extend downward after being connected to the connecting wall until it is connected to the inner tube wall. A fourth support rib extends vertically upward inward from the center position of the bottom of the sealing slot, and the fourth support rib connecting seat continues to extend upward on the connecting wall until it is connected to the outer tube wall. The connections between the third and fourth support ribs and the connecting wall form a cross structure for support.

[0013] In this embodiment, both ends of the connecting wall are respectively connected to the middle position of the side wall.

[0014] The utility model has the following advantages and beneficial effects:

[0015] A first supporting rib and a second supporting rib extend downward from the bottom of the trapezoidal groove and the filling groove. A plurality of cross structures are formed at the connection between the first supporting rib and the second supporting rib and the connecting wall. The plurality of cross structures support the inside of the tube wall profile. Combined with the bending resistance provided by the trapezoidal groove and the ring stiffness provided by the fiberglass reinforced plastic in the filling groove, the overall supporting strength of the tube wall of this structure is higher. Each cross structure forms an independent support. Even if one of the cross structures is deformed, it will not affect the other cross structures, and the structure is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of the tube wall profile after spiral winding in this embodiment;

[0018] Figure 2 Schematic diagram of the structure of the tube wall profile in this embodiment. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention, but the present invention is not limited to the following embodiments.

[0020] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0021] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0022] like Figures 1 to 2As shown, this embodiment discloses a plate and strip structure for a spirally wound pipe, including a pipe wall profile 1, which spirally extends along the cross-sectional direction and is sequentially wound to form a pipe body, the pipe wall profile 1 is a hollow structure and includes an outer pipe wall 11 and an inner pipe wall 12 parallel to each other, and side walls 13 vertically connected to both ends of the inner pipe wall 12 and the outer pipe wall 11, and a connecting wall 10 is connected between the side walls 13 on both sides, and the outer pipe wall 11 is provided with a trapezoidal groove 14 recessed inwardly, the trapezoidal groove 14 is wide outside and narrow inside, and the outer pipe wall 11 is further provided with filling grooves 15 recessed inwardly on both sides of the trapezoidal groove 14, and the two groups of filling grooves 15 are symmetrically arranged, and the filling grooves 15 are filled with glass fiber reinforced plastics for improving the annular stiffness and bending strength of the pipe, and the trapezoidal groove 14 is provided with a plurality of grooves 15 for tightening the pipe. A first supporting rib 16 extends vertically downward toward the inner side of the tube wall at the center position of the bottom of the filling groove 15, and a second supporting rib 17 extends vertically downward toward the inner side of the tube wall at the bottom of the filling groove 15. After the first supporting rib 16 and the second supporting rib 17 are connected to the connecting wall 10, they continue to extend downward to connect with the inner tube wall 12. A plurality of cross structures 20 are formed at the connection between the first supporting rib 16 and the second supporting rib 17 and the connecting wall 10. The plurality of cross structures 20 are supported inside the tube wall profile 1. Combined with the bending resistance provided by the trapezoidal groove 14 and the ring stiffness provided by the glass fiber reinforced plastic in the filling groove 15, the overall supporting strength of the tube wall of this structure is higher, and each cross structure 20 forms an independent support. Even if one of the cross structures 20 is deformed, it will not affect the other cross structures 20, and the structure is more stable.

[0023] In this embodiment, in order to further improve the structural stability, two groups of second support ribs 17 are provided. The two groups of second support ribs 17 are parallel to each other and are respectively supported on both sides of the bottom of the filling groove 15. The two groups of second support ribs 17 form two groups of cross structures 20 below the filling groove 15, thereby achieving the effect of further improving the supporting performance.

[0024] The cam 32 is connected to the cam 32 on one side of the outer wall 11 and the sealing buckle 31 is connected to the cam 32 on the other side of the cam 32.

[0025] Furthermore, since the tube wall profile 1 is a hollow structure, in order to improve the support of the buckling structures 3 on both sides, a third support rib 18 extends vertically downward inward from the center position of the bottom of the connecting slot 34. After the third support rib 18 is connected to the connecting wall 10, it continues to extend downward until it is connected to the inner tube wall 12. A fourth support rib 19 extends vertically upward inward from the center position of the bottom of the sealing slot 33. After the fourth support rib 19 connection seat is on the connecting wall 10, it continues to extend upward until it is connected to the outer tube wall 11. The connections between the third support rib 18 and the fourth support rib 19 and the connecting wall 10 form a cross structure 20 for support.

[0026] In this embodiment, the connecting wall 10 is horizontally arranged, and both ends of the connecting wall 10 are respectively connected to the middle position of the side wall 13 .

[0027] The above contents described in this specification are merely examples of the present invention. Those skilled in the art in the technical field to which the present invention belongs may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the contents of the present invention specification or exceed the scope defined by the claims, they shall fall within the scope of protection of the present invention.

Claims

1. A plate strip structure for a spirally wound pipe, comprising a pipe wall profile (1), characterized in that: The tube wall profile (1) is a hollow structure and comprises an outer tube wall (11) and an inner tube wall (12) parallel to each other, and side walls (13) connected at both ends of the inner tube wall (12) and the outer tube wall (11), a horizontally arranged connecting wall (10) is provided between the side walls (13) on both sides, and the outer tube wall (11) is provided with a trapezoidal groove (14) recessed inwardly and a filling groove (15) recessed inwardly, the bottom of the trapezoidal groove (14) extending vertically downwardly toward the inner side of the tube wall. A first supporting rib (16) is extended, and a second supporting rib (17) is extended vertically downward from the bottom of the filling groove (15) toward the inner side of the tube wall. After the first supporting rib (16) and the second supporting rib (17) are connected to the connecting wall (10), they continue to extend downward to connect with the inner tube wall (12). The connection between the first supporting rib (16) and the second supporting rib (17) and the connecting wall (10) forms a cross structure (20), and the cross structure (20) forms a support inside the tube wall profile (1).

2. The plate strip structure for spirally wound pipe according to claim 1, characterized in that: The trapezoidal groove (14) is wide on the outside and narrow on the inside, and two groups of filling grooves (15) are provided. The two groups of filling grooves (15) are symmetrically arranged on both sides of the trapezoidal groove (14).

3. The plate strip structure for spirally wound pipe according to claim 2, characterized in that: The filling groove (15) is filled with glass fiber reinforced plastic.

4. The plate strip structure for spirally wound pipe according to claim 2, characterized in that: The second supporting ribs (17) are provided in two groups, the two groups of the second supporting ribs (17) are parallel to each other and are respectively connected to the two sides of the bottom of the filling groove (15), and the two groups of the second supporting ribs (17) form two groups of cross structures (20) below the filling groove (15).

5. The plate strip structure for spirally wound pipe according to claim 1, characterized in that: The tube wall profile (1) is further provided with a buckle structure (3), the buckle structure (3) comprising a sealing buckle (31) connected to one side of the inner tube wall (12) and a connecting buckle (32) connected to one side of the outer tube wall (11), the sealing buckle (31) and the connecting buckle (32) being respectively located on two sides of the tube wall profile (1), the other side of the inner tube wall (12) being concave inwardly near the edge position to form a sealing slot (33) for cooperating with the sealing buckle (31), and the other side of the outer tube wall (11) being concave inwardly near the edge position to form a connecting slot (34) for cooperating with the connecting buckle (32).

6. The plate strip structure for spirally wound pipe according to claim 5, characterized in that: A third supporting rib (18) extends vertically downward from the bottom of the connecting slot (34) toward the inside, and the third supporting rib (18) is connected to the connecting wall (10) and continues to extend downward until it is connected to the inner tube wall (12). A fourth supporting rib (19) extends vertically upward from the center of the bottom of the sealing slot (33) toward the inside, and the fourth supporting rib (19) connection seat is on the connecting wall (10) and continues to extend upward until it is connected to the outer tube wall (11). The connections between the third supporting rib (18) and the fourth supporting rib (19) and the connecting wall (10) form a cross structure (20) for support.

7. The plate strip structure for spirally wound pipe according to claim 1, characterized in that: Both ends of the connecting wall (10) are respectively connected to the middle position of the side wall (13).

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