Corrugated board box body and curved cover plate combination structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-08-11
AI Technical Summary
[0005]发明目的:本实用新型的目的是为了克服现有技术中的不足,提供一种增强瓦楞板主体的结构强度,使瓦楞板主体能够承受更大水压,相邻盖板之间止水效果好,通过外部支撑解决使用寿命短、难更换问题的瓦楞板箱体和弧形盖板组合结构
[0016] Beneficial Effects: Compared with the prior art, the significant advantages of this utility model are: The overall structure of this utility model is rationally designed. By setting several concave and convex ribs on the corrugated sheet body, the structural strength of the corrugated sheet body is enhanced, enabling it to withstand greater water pressure. Thus, using the same amount of raw materials, the corrugated sheet body achieves higher structural strength. Furthermore, the concave and convex ribs consist of several groups, with at least one group having a convex direction opposite to that of the other groups, further improving structural strength. The concave and convex ribs include segmented and continuous types to meet different needs. They are connected by several arc-shaped cover plate units, facilitating installation and transportation. Each arc-shaped cover plate unit includes a plate body, the section of which... The surface has a corrugated structure with high structural strength. It features folded edges on both sides with raised ribs and interlocking edges at the ends. The ribbed folded edges and interlocking edges at the ends increase strength and enhance water-stopping effect when rubber is sandwiched. Horizontal ribs (I) are located on the bottom surface of the plate, longitudinal ribs on the top surface, and horizontal ribs (II) on the inclined surface, further improving structural strength. Unequal-sided angle steel connected by bolts is located on the outside of the folded edges to enhance the overall strength of the arc-shaped cover. When the pool span is large, a supporting structure is provided outside the arc-shaped cover unit, solving the problems of short service life and difficulty in replacement associated with previous internal supporting structures, thus meeting practical usage requirements.
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Figure CN224620787U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a sewage treatment tank structure, specifically a combination structure of a corrugated plate box and an arc-shaped cover plate. Background Technology
[0002] Prefabricated wastewater treatment tanks are prefabricated structures manufactured in factories according to specific designs and standards, and then transported to the construction site for assembly. These tanks are typically used for the collection, storage, and preliminary treatment of sewage or wastewater. Prefabricated wastewater treatment tanks are suitable for a variety of applications, including but not limited to residential areas, commercial buildings, industrial parks, rural areas, and temporary or emergency wastewater treatment needs. Furthermore, they can be integrated with other wastewater treatment technologies, such as biological, chemical, or physical treatment units, to achieve more comprehensive and effective wastewater treatment results.
[0003] The existing prefabricated sewage treatment tanks are assembled by first installing the base, then installing several columns, and then installing several corrugated plates between two adjacent columns. The overall strength of the tank is insufficient, making it prone to deformation and causing water leakage, which affects the performance.
[0004] As a common space covering solution in modern architecture, curved cover structures have been widely used in public buildings, industrial plants, and environmental protection facilities (such as sewage treatment plants and garbage transfer stations). Currently, however, these curved cover structures suffer from issues such as generally low connection strength and limited water-stopping effect when adjacent covers are sandwiched with rubber. Furthermore, traditional curved covers typically rely on internal frame structures for load-bearing support; if corrosive gases are released from the pool, this can accelerate structural aging and shorten its lifespan. Alternatively, more corrosion-resistant materials may need to be used, increasing costs. Utility Model Content
[0005] Purpose of the invention: The purpose of this utility model is to overcome the shortcomings of the prior art and provide a corrugated board box and arc-shaped cover plate combination structure that enhances the structural strength of the corrugated board body, enables the corrugated board body to withstand greater water pressure, has a good water-stopping effect between adjacent cover plates, and solves the problems of short service life and difficulty in replacement through external support.
[0006] Technical Solution: To solve the above-mentioned technical problems, the present invention provides a corrugated board box and arc-shaped cover plate combination structure, which includes a corrugated board box with an arc-shaped cover plate on top. The corrugated board box includes columns, a plurality of columns are arranged in a rectangular pattern, and a plurality of corrugated boards are arranged between two adjacent columns. Each corrugated board includes a top column, and side columns are provided on both sides of the top column. A bottom column is connected to the bottom of two side columns. The corrugated board body is fixed to the top column. Both the side columns and the bottom column are connected to the corrugated board body. The corrugated plate body is fixedly connected, and a number of ribs are provided on the corrugated plate body. The arc-shaped cover plate includes a number of arc-shaped cover plate units, each of which includes a plate body. The plate body has a corrugated cross section. A folded edge I is provided on one side of the plate body, and at least one rib I is provided on the folded edge I. A dead edge I is provided at the end of the folded edge I. A folded edge II is provided on the other side of the plate body, and at least one rib II is provided on the folded edge II. A dead edge II is provided at the end of the folded edge II. The ribs I and II are staggered.
[0007] Furthermore, the concave and convex ribs include segmented and continuous types.
[0008] Furthermore, the individual concave-convex ribs can be U-shaped or V-shaped.
[0009] Furthermore, the corrugated board body has a corrugated or trapezoidal structural form, and the corrugated board body is integrally formed.
[0010] Furthermore, the ribs are provided on the corrugated plate body along the length of the top column, and the ribs are composed of several groups, with at least one group having a protrusion direction opposite to that of the other groups.
[0011] Furthermore, the plate includes a bottom surface, an inclined surface, and a top surface. A transverse rib I is provided on the bottom surface of the plate, a longitudinal rib is provided on the top surface of the plate, and a transverse rib II is provided on the inclined surface of the plate.
[0012] Furthermore, two raised ribs I are provided on the folded edge I, and two raised ribs II are provided on the folded edge II, with the height of the raised ribs II being higher than that of the raised ribs I.
[0013] Furthermore, connecting holes are provided on both the folded edge I and the folded edge II, and elastic sealing rubber is provided between adjacent arc-shaped cover plate units. Unequal angle steel is bolted to the outer sides of the folded edge I and the folded edge II of adjacent arc-shaped cover plate units. The unequal angle steel is provided with a raised rib III, a locked edge III, and a bolt hole, and the bolt hole is aligned with the connecting hole on the folded edge. They are connected by bolts.
[0014] Furthermore, when the span of the pool is large, a support structure is provided outside the arc-shaped cover plate unit; the support structure includes a support beam and a connecting rod, one end of the connecting rod is connected to the support beam, and the other end is bolted to the locking edge III of the unequal angle steel. The connecting rod is adjustable, that is, used to adjust the tension between the support beam and the unequal angle steel.
[0015] Furthermore, both the bitten edge I and bitten edge II are flanges.
[0016] Beneficial Effects: Compared with the prior art, the significant advantages of this utility model are: The overall structure of this utility model is rationally designed. By setting several concave and convex ribs on the corrugated sheet body, the structural strength of the corrugated sheet body is enhanced, enabling it to withstand greater water pressure. Thus, using the same amount of raw materials, the corrugated sheet body achieves higher structural strength. Furthermore, the concave and convex ribs consist of several groups, with at least one group having a convex direction opposite to that of the other groups, further improving structural strength. The concave and convex ribs include segmented and continuous types to meet different needs. They are connected by several arc-shaped cover plate units, facilitating installation and transportation. Each arc-shaped cover plate unit includes a plate body, the section of which... The surface has a corrugated structure with high structural strength. It features folded edges on both sides with raised ribs and interlocking edges at the ends. The ribbed folded edges and interlocking edges at the ends increase strength and enhance water-stopping effect when rubber is sandwiched. Horizontal ribs (I) are located on the bottom surface of the plate, longitudinal ribs on the top surface, and horizontal ribs (II) on the inclined surface, further improving structural strength. Unequal-sided angle steel connected by bolts is located on the outside of the folded edges to enhance the overall strength of the arc-shaped cover. When the pool span is large, a supporting structure is provided outside the arc-shaped cover unit, solving the problems of short service life and difficulty in replacement associated with previous internal supporting structures, thus meeting practical usage requirements. Attached Figure Description
[0017] Figure 1 This is a simplified diagram of the overall structure of this utility model; Figure 2 This is a simplified overall structural diagram of the present invention with an external support structure; Figure 3 This is a schematic diagram of the segmented ribs in this utility model; Figure 4 This is a schematic diagram of the continuous concave-convex ribs in this utility model; Figure 5 This is a side view of the arc-shaped cover plate unit in this utility model; Figure 6 This is a top view of the arc-shaped cover plate unit in this utility model; Figure 7 This is a schematic diagram of the overlap between adjacent arc-shaped cover plate units in this utility model; Figure 8This is a schematic diagram of the connecting hole on one side of the folded edge of the arc-shaped cover plate unit in this utility model; Figure 9 This is a schematic diagram of the connecting hole on the other side of the folded edge of the arc-shaped cover plate unit in this utility model; Figure 10 This is a structural schematic diagram of the corrugated board box body in this utility model. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1
[0019] like Figure 1 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, the corrugated board box and arc-shaped cover plate combination structure of this utility model includes a corrugated board box 19, with an arc-shaped cover plate 20 on the top of the corrugated board box 19; the corrugated board box 19 includes columns 21, a plurality of columns 21 are distributed in a rectangular shape, and a plurality of corrugated plates are arranged between two adjacent columns 21; each corrugated plate includes a top column 31, and side columns 32 are provided on both sides of the top column 31; a bottom column 33 is connected to the bottom end of two side columns 32. A corrugated plate body 34 is fixedly connected to the top column 31. The side columns 32 and the bottom column 33 are also fixedly connected to the corrugated plate body 34. Six sets of concave and convex ribs 341 are provided on the corrugated plate body 34. The second and fifth sets of concave and convex ribs 341 from top to bottom have their protrusion direction facing inward and opposite to the protrusion direction of the other sets. The concave and convex ribs 341 are segmented and each has a U-shaped form. The concave and convex ribs 341 are provided on the corrugated plate body 34 along the length direction of the top column 31.
[0020] The corrugated plate body 34 has a wave-shaped structure and is integrally molded.
[0021] When the span of the pool is small, the arc-shaped cover plate 20 includes several arc-shaped cover plate units. Each arc-shaped cover plate unit includes a plate body 1. The cross-section of the plate body 1 is a corrugated structure. The plate body 1 includes a bottom surface 1.1, an inclined surface 1.2, and a top surface 1.3. A folded edge I2 is provided on one side of the plate body, and two raised ribs I3 are provided on the folded edge I2. A dead edge I4 is provided at the end of the folded edge I2. A folded edge II5 is provided on the other side of the plate body 1, and two raised ribs are provided on the folded edge II5. II6, the end of the folded edge II5 is provided with a dead edge II7, the convex ribs I3 and II6 are staggered, the dead edges I4 and II7 are both flanges, the height of the convex rib II6 is higher than the height of the convex rib I3, a transverse rib I10 is provided on the bottom surface 1.1 of the plate body 1, a longitudinal rib 11 is provided on the top surface 1.3 of the plate body 1, a transverse rib II12 is provided on the inclined surface 1.2 of the plate body 1, and a connecting hole 15 is provided on both the folded edge I2 and the folded edge II5.
[0022] An elastic sealing rubber 13 is provided between adjacent arc-shaped cover plate units. Unequal angle steel 14 is bolted to the outer sides of the folded edge I2 and folded edge II5 of adjacent arc-shaped cover plate units. The unequal angle steel 14 is provided with a raised rib III16, a dead edge III17, and a bolt hole 18. The bolt hole 18 is aligned with the connecting hole 15 on the folded edge, and they are connected by bolts. Example 2
[0023] like Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, the corrugated board box and arc-shaped cover plate combination structure of this utility model includes a corrugated board box 19, with an arc-shaped cover plate 20 on the top of the corrugated board box 19; the corrugated board box 19 includes columns 21, a plurality of columns 21 are distributed in a rectangular shape, and a plurality of corrugated plates are arranged between two adjacent columns 21; each corrugated plate includes a top column 31, and side columns 32 are provided on both sides of the top column 31; a bottom column 33 is connected to the bottom end of two side columns 32. A corrugated plate body 34 is fixedly connected to the top column 31. The side columns 32 and the bottom column 33 are also fixedly connected to the corrugated plate body 34. Six sets of concave and convex ribs 341 are provided on the corrugated plate body 34. The second and fifth sets of concave and convex ribs 341 from top to bottom have their protrusion direction facing inward and opposite to the protrusion direction of the other sets. The concave and convex ribs 341 are segmented and each has a U-shaped form. The concave and convex ribs 341 are provided on the corrugated plate body 34 along the length direction of the top column 31.
[0024] The corrugated plate body 34 has a wave-shaped structure and is integrally molded.
[0025] When the span of the pool is large, the arc-shaped cover plate 20 includes several arc-shaped cover plate units. Each arc-shaped cover plate unit includes a plate body 1. The cross-section of the plate body 1 is a corrugated structure. The plate body 1 includes a bottom surface 1.1, an inclined surface 1.2, and a top surface 1.3. A folded edge I2 is provided on one side of the plate body, and two raised ribs I3 are provided on the folded edge I2. A dead edge I4 is provided at the end of the folded edge I2. A folded edge II5 is provided on the other side of the plate body 1, and two raised ribs are provided on the folded edge II5. II6, the end of the folded edge II5 is provided with a dead edge II7, the convex ribs I3 and II6 are staggered, the dead edges I4 and II7 are both flanges, the height of the convex rib II6 is higher than the height of the convex rib I3, a transverse rib I10 is provided on the bottom surface 1.1 of the plate body 1, a longitudinal rib 11 is provided on the top surface 1.3 of the plate body 1, a transverse rib II12 is provided on the inclined surface 1.2 of the plate body 1, and a connecting hole 15 is provided on both the folded edge I2 and the folded edge II5.
[0026] An elastic sealing rubber 13 is provided between adjacent arc-shaped cover plate units. Unequal angle steel 14 is bolted to the outer sides of the folded edges I2 and II5 of adjacent arc-shaped cover plate units. The unequal angle steel 14 is provided with a raised rib III16, a locked edge III17, and a bolt hole 18. The bolt hole 18 is aligned with the connecting hole 15 on the folded edge. They are bolted together. A support structure is provided outside the arc-shaped cover plate unit. The support structure includes a support beam 8 and a connecting rod 9. One end of the connecting rod 9 is connected to the support beam 8, and the other end is bolted to the locked edge III17 of the unequal angle steel 14. The connecting rod 9 is adjustable, that is, used to adjust the tension between the support beam 8 and the unequal angle steel 14. Example 3
[0027] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10As shown, the corrugated board box and arc-shaped cover plate combination structure of this utility model includes a corrugated board box 19, with an arc-shaped cover plate 20 on the top of the corrugated board box 19; the corrugated board box 19 includes columns 21, a plurality of columns 21 are distributed in a rectangular shape, and a plurality of corrugated plates are arranged between two adjacent columns 21; each corrugated plate includes a top column 31, and side columns 32 are provided on both sides of the top column 31; a bottom column 33 is connected to the bottom end of two side columns 32. A corrugated plate body 34 is fixedly connected to the top column 31. The side columns 32 and the bottom column 33 are also fixedly connected to the corrugated plate body 34. Six continuous concave and convex ribs 341 are provided on the corrugated plate body 34. The second and fifth concave and convex ribs 341 from the top face inward and are opposite to the direction of the other concave and convex ribs. The concave and convex ribs 341 are U-shaped and are provided on the corrugated plate body 34 along the length of the top column 31.
[0028] When the span of the pool is small, the arc-shaped cover plate 20 includes several arc-shaped cover plate units. Each arc-shaped cover plate unit includes a plate body 1. The cross-section of the plate body 1 is a corrugated structure. The plate body 1 includes a bottom surface 1.1, an inclined surface 1.2, and a top surface 1.3. A folded edge I2 is provided on one side of the plate body, and two raised ribs I3 are provided on the folded edge I2. A dead edge I4 is provided at the end of the folded edge I2. A folded edge II5 is provided on the other side of the plate body 1, and two raised ribs are provided on the folded edge II5. II6, the end of the folded edge II5 is provided with a dead edge II7, the convex ribs I3 and II6 are staggered, the dead edges I4 and II7 are both flanges, the height of the convex rib II6 is higher than the height of the convex rib I3, a transverse rib I10 is provided on the bottom surface 1.1 of the plate body 1, a longitudinal rib 11 is provided on the top surface 1.3 of the plate body 1, a transverse rib II12 is provided on the inclined surface 1.2 of the plate body 1, and a connecting hole 15 is provided on both the folded edge I2 and the folded edge II5.
[0029] An elastic sealing rubber 13 is provided between adjacent arc-shaped cover plate units. Unequal angle steel 14 is bolted to the outer sides of the folded edge I2 and folded edge II5 of adjacent arc-shaped cover plate units. The unequal angle steel 14 is provided with a raised rib III16, a dead edge III17, and a bolt hole 18. The bolt hole 18 is aligned with the connecting hole 15 on the folded edge, and they are connected by bolts. Example 4
[0030] like Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10As shown, the corrugated board box and arc-shaped cover plate combination structure of this utility model includes a corrugated board box 19, with an arc-shaped cover plate 20 on the top of the corrugated board box 19; the corrugated board box 19 includes columns 21, a plurality of columns 21 are distributed in a rectangular shape, and a plurality of corrugated plates are arranged between two adjacent columns 21; each corrugated plate includes a top column 31, and side columns 32 are provided on both sides of the top column 31; a bottom column 33 is connected to the bottom end of two side columns 32. A corrugated plate body 34 is fixedly connected to the top column 31. The side columns 32 and the bottom column 33 are also fixedly connected to the corrugated plate body 34. Six continuous concave and convex ribs 341 are provided on the corrugated plate body 34. The second and fifth concave and convex ribs 341 from the top face inward and are opposite to the direction of the other concave and convex ribs. The concave and convex ribs 341 are U-shaped and are provided on the corrugated plate body 34 along the length of the top column 31.
[0031] When the span of the pool is large, the arc-shaped cover plate 20 includes several arc-shaped cover plate units. Each arc-shaped cover plate unit includes a plate body 1. The cross-section of the plate body 1 is a corrugated structure. The plate body 1 includes a bottom surface 1.1, an inclined surface 1.2, and a top surface 1.3. A folded edge I2 is provided on one side of the plate body, and two raised ribs I3 are provided on the folded edge I2. A dead edge I4 is provided at the end of the folded edge I2. A folded edge II5 is provided on the other side of the plate body 1, and two raised ribs are provided on the folded edge II5. II6, the end of the folded edge II5 is provided with a dead edge II7, the convex ribs I3 and II6 are staggered, the dead edges I4 and II7 are both flanges, the height of the convex rib II6 is higher than the height of the convex rib I3, a transverse rib I10 is provided on the bottom surface 1.1 of the plate body 1, a longitudinal rib 11 is provided on the top surface 1.3 of the plate body 1, a transverse rib II12 is provided on the inclined surface 1.2 of the plate body 1, and a connecting hole 15 is provided on both the folded edge I2 and the folded edge II5.
[0032] An elastic sealing rubber 13 is provided between adjacent arc-shaped cover plate units. Unequal angle steel 14 is bolted to the outer sides of the folded edges I2 and II5 of adjacent arc-shaped cover plate units. The unequal angle steel 14 is provided with a raised rib III16, a locked edge III17, and a bolt hole 18. The bolt hole 18 is aligned with the connecting hole 15 on the folded edge. They are bolted together. A support structure is provided outside the arc-shaped cover plate unit. The support structure includes a support beam 8 and a connecting rod 9. One end of the connecting rod 9 is connected to the support beam 8, and the other end is bolted to the locked edge III17 of the unequal angle steel 14. The connecting rod 9 is adjustable, that is, used to adjust the tension between the support beam 8 and the unequal angle steel 14.
[0033] This utility model features a rationally designed overall structure. By incorporating several raised and recessed ribs into the corrugated sheet body, the structural strength of the corrugated sheet body is enhanced, enabling it to withstand greater water pressure. Thus, using the same amount of raw materials, the corrugated sheet body achieves higher structural strength. Furthermore, the raised and recessed ribs consist of several groups, with at least one group having a protrusion direction opposite to the other groups, further improving structural strength. The raised and recessed ribs include segmented and continuous types to meet different needs. Several arc-shaped cover plate units are connected, facilitating installation and transportation. Each arc-shaped cover plate unit includes a plate body with a corrugated cross-section, resulting in high structural strength. The plate has folded edges on both sides with raised ribs and interlocking edges at the ends. The ribbed folded edges and interlocking edges at the ends increase strength and enhance water-stopping effect when rubber is sandwiched. Horizontal rib I is provided on the bottom surface of the plate, longitudinal ribs on the top surface, and horizontal rib II on the inclined surface, further improving structural strength. Unequal-sided angle steel connected by bolts is located on the outside of the folded edges to enhance the overall strength of the arc-shaped cover. When the pool span is large, a supporting structure is provided outside the arc-shaped cover unit, solving the problems of short service life and difficulty in replacement associated with previous internal supporting structures, thus meeting practical usage requirements.
[0034] This utility model provides a concept and method. There are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model. These improvements and modifications should also be considered as the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.
Claims
1. A combination structure of corrugated board box body and arc-shaped cover plate, characterized in that: It includes a corrugated board box (19), with an arc-shaped cover plate (20) on the top of the corrugated board box (19); the corrugated board box (19) includes columns (21), a number of columns (21) are distributed in a rectangular shape, and a number of corrugated boards are arranged between two adjacent columns (21), the corrugated boards include a top column (31), and side columns (32) are provided on both sides of the top column (31). A bottom column (33) is connected to the bottom end of the two side columns (32). A corrugated board body (34) is fixedly connected to the top column (31). The side columns (32) and the bottom column (33) are both fixedly connected to the corrugated board body (34). The plate is provided with several concave and convex ribs (341); the arc-shaped cover plate (20) includes several arc-shaped cover plate units, the arc-shaped cover plate unit includes a plate body (1), the cross section of the plate body (1) is a corrugated structure, a folded edge I (2) is provided on one side of the plate body (1), at least one convex rib I (3) is provided on the folded edge I (2), a dead edge I (4) is provided at the end of the folded edge I (2), a folded edge II (5) is provided on the other side of the plate body (1), at least one convex rib II (6) is provided on the folded edge II (5), a dead edge II (7) is provided at the end of the folded edge II (5), and the convex rib I (3) and the convex rib II (6) are staggered.
2. The corrugated board box body and arc-shaped cover plate combination structure according to claim 1, characterized in that: The concave-convex ribs (341) include segmented and continuous types.
3. The corrugated board box body and arc-shaped cover plate combination structure according to claim 1, characterized in that: The individual concave-convex ribs (341) can be U-shaped or V-shaped.
4. The corrugated board box body and arc-shaped cover plate combination structure according to claim 1, characterized in that: The corrugated board body (34) has a structure in either a wave or trapezoidal shape, and the corrugated board body (34) is integrally formed.
5. The corrugated board box body and arc-shaped cover plate combination structure according to claim 1, characterized in that: The concave-convex ribs (341) are provided on the corrugated plate body (34) along the length of the top column (31). The concave-convex ribs (341) are composed of several groups, and at least one group has a protrusion direction opposite to that of the other groups.
6. The corrugated board box body and arc-shaped cover plate combination structure according to claim 1, characterized in that: The plate (1) includes a bottom surface (1.1), an inclined surface (1.2) and a top surface (1.3). A horizontal rib I (10) is provided on the bottom surface (1.1) of the plate (1), a longitudinal rib (11) is provided on the top surface (1.3) of the plate (1), and a horizontal rib II (12) is provided on the inclined surface (1.2) of the plate (1).
7. The corrugated board box body and arc-shaped cover plate combination structure according to claim 1, characterized in that: Two ribs I (3) are provided on the folded edge I (2), and two ribs II (6) are provided on the folded edge II (5). The height of the ribs II (6) is higher than that of the ribs I (3).
8. The corrugated board box body and arc-shaped cover plate combination structure according to claim 1, characterized in that: Connection holes (15) are provided on both the folded edge I (2) and the folded edge II (5). Elastic sealing rubber (13) is provided between adjacent arc-shaped cover plate units. Unequal angle steel (14) is bolted to the outer side of the folded edge I (2) and the folded edge II (5) of the adjacent arc-shaped cover plate units. Raised rib III (16), dead edge III (17), and bolt hole (18) are provided on the unequal angle steel (14). The bolt hole (18) is aligned with the connection hole (15) on the folded edge and they are connected by bolts.
9. The corrugated board box body and arc-shaped cover plate combination structure according to claim 8, characterized in that: When the span of the pool is large, a support structure is provided outside the arc-shaped cover plate unit; the support structure includes a support beam (8) and a connecting rod (9), one end of the connecting rod (9) is connected to the support beam (8), and the other end is bolted to the dead edge III (17) of the unequal angle steel (14).