Inner flange of non-prestressed concrete electric pole

Abstract

The utility model discloses a non-prestressed concrete pole inner flange, and relates to the technical field of flanges. Comprising a flange steel ring, a first flange plate sleeving one end of the flange steel ring, a second flange plate sleeving the other end of the flange steel ring, a steel plate ring arranged on the side, away from the flange steel ring, of the first flange plate and a plurality of steel bars welded to the outer wall of the steel plate ring. An external concrete reserved area exists between the outer wall of the steel plate ring and the outer wall of the first flange plate, an internal concrete reserved area exists between the inner wall of the steel plate ring and the inner wall of the first flange plate, the external concrete reserved area and the internal concrete reserved area are both used for being filled with concrete, and the diameter of each steel bar is smaller than the width of the external concrete reserved area. The steel bars are welded on the periphery of the steel plate ring, so that the formed steel plate ring and the steel bars are completely embedded in concrete, the steel plate ring is completely arranged in the concrete after a product is formed, and extra anti-corrosion treatment is not needed; when steel bars are welded, welding operation is very convenient, and welding parts can be welded in all directions.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, and more specifically to the field of flange technology for non-prestressed concrete poles. Background Technology

[0002] Plain flanges are a basic method of pole assembly and connection, also known as welded steel flanges. Flange assembly is aesthetically pleasing and easy to install. It requires no welding equipment or materials and is unaffected by the surrounding environment. However, the appropriate flange rating must be determined based on the actual load, operating environment, and design requirements. Currently, flange connections are commonly used for pole joints with large bending moments or high load ratings.

[0003] Patent publication number CN109058623A, entitled "An Inner Flange for a Non-Prestressed Concrete Pole," discloses the following: An inner flange for a non-prestressed concrete pole includes a flange body, a central channel, a through hole, a flange, and reinforcing strips. The flange body is connected to the outer edge of the flange body, with the flange protruding above and below the flange body. The through hole is evenly distributed on the circumference of the flange body near the flange. Several raised rings are evenly distributed from top to bottom inside the through hole. Several reinforcing strips are provided at one end of the flange, and the reinforcing strips are installed at the end of the flange via rotating posts. It has the characteristics of reasonable structure, good stability, high strength, and good sealing performance.

[0004] The aforementioned patent and existing pole flange process involve welding the main reinforcing bars (steel bars) inside the steel plate ring. After the product is formed, the welded steel plate ring is exposed on the outside, which makes it difficult to apply the anti-corrosion coating and makes it prone to rust after long-term exposure.

[0005] Furthermore, when welding reinforcing bars, the limited welding space due to the large number (density) of bars often prevents welding tools from entering the welding position, resulting in incomplete welding or missed welds and defects in welding quality. Therefore, existing ordinary flanges require manual adjustment of the welding angle during operation, which is inefficient and inconsistent. During concrete pouring, cavities can easily form due to the obstruction of reinforcing bars, affecting the structural density. Utility Model Content

[0006] The purpose of this utility model is to provide an inner flange for a non-prestressed concrete pole in order to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] This utility model provides an inner flange for a non-prestressed concrete pole, including a flange steel ring, a first flange plate fitted on one end of the flange steel ring, a second flange plate fitted on the other end of the flange steel ring, a steel plate ring disposed on the side of the first flange plate away from the flange steel ring, and multiple reinforcing bars welded to the outer wall of the steel plate ring.

[0009] The steel plate ring, flange ring, first flange, and second flange are coaxially arranged. There is an external concrete reserved area between the outer wall of the steel plate ring and the outer wall of the first flange, and there is an internal concrete reserved area between the inner wall of the steel plate ring and the inner wall of the first flange. Both the external and internal concrete reserved areas are used to fill concrete, and the diameter of each reinforcing bar is smaller than the width of the external concrete reserved area.

[0010] Specifically, the flange design in this scheme reduces the size of the steel plate ring and welds multiple steel bars around the outer edge of the steel plate ring, ensuring that the steel plate ring and steel bars are completely embedded in the concrete after molding. With this process, the steel plate ring is completely inside the concrete after molding, eliminating the need for additional anti-corrosion treatment. Secondly, the welding operation is very convenient when welding the steel bars, allowing for welding from all directions, resulting in more reliable quality. In addition, it is more convenient to pour concrete.

[0011] With the steel plate ring placed outside the reinforcing steel cage, the flow resistance of the concrete is reduced, which can prevent the accumulation of concrete aggregate, reduce the concrete cavity, and improve the density of the pouring; the inner wall of the steel plate ring forms a smooth transition surface, with no concrete accumulation. It is aesthetically pleasing and simple.

[0012] In one embodiment, multiple reinforcing bars are evenly distributed circumferentially on the outer wall of the steel plate ring, and the multiple reinforcing bars are welded to the outer wall of the steel plate ring using a circumferentially symmetrical reinforcement welding method.

[0013] Specifically, multiple reinforcing bars are welded to the outer wall of the steel plate ring using a circumferential symmetrical reinforcement welding method. This method provides ample operating space for the welding torch, enabling full welding at multiple angles and meeting the effective welding length and width requirements.

[0014] In one embodiment, the ratio of the width of the outer concrete reserved area to the width of the inner concrete reserved area is 1:1 to 2:1.

[0015] In one embodiment, the bottom of the outer wall of the flange ring is provided with a number of reinforcing ribs that are connected to the first flange.

[0016] In one embodiment, the reinforcing rib is an isosceles right triangle, with one right-angled side of the reinforcing rib welded to the bottom of the outer wall of the steel ring, and the other right-angled side of the reinforcing rib welded to the upper surface of the first flange.

[0017] In one embodiment, a number of second stiffening plates are evenly distributed circumferentially on the outer wall of the flange steel ring.

[0018] In one embodiment, each of the second stiffeners is a square stiffener, and the inner sidewall of each square stiffener is fixed to the outer wall of the flange steel ring by welding. The two ends of each square stiffener are respectively welded to the first flange and the second flange.

[0019] In one embodiment, the length of each square stiffener is the distance between the first flange and the second flange, and the width of each square stiffener is the distance from the outer wall of the flange ring to the outer wall of the first flange.

[0020] In one embodiment, the first flange and the second flange have the same inner and outer diameters.

[0021] In one embodiment, the second flange has a plurality of bolt holes evenly distributed around its circumference, with each bolt hole located on the second flange between two adjacent reinforcing ribs.

[0022] Specifically, the bolt holes of the second flange of one welded rod flange are connected to the bolt holes of the second flange of another welded rod flange via bolts.

[0023] The beneficial effects of this utility model are as follows:

[0024] 1. The flange designed in this utility model reduces the size of the steel plate ring and welds multiple steel bars to the outside of the steel plate ring, ensuring that the steel plate ring and steel bars are completely embedded in the concrete after molding. After the product is formed, the steel plate ring is completely inside the concrete, and no additional anti-corrosion treatment is required. Secondly, the welding operation is very convenient when welding steel bars, and welding can be carried out from all directions, resulting in more reliable quality. In addition, it is more convenient to pour concrete.

[0025] 2. After placing a steel plate ring around the reinforcing steel cage, the flow resistance of the concrete is reduced, which can prevent the accumulation of concrete aggregate, reduce the concrete cavity, and improve the density of the pouring; the inner wall of the steel plate ring forms a smooth transition surface, with no concrete accumulation. It is aesthetically pleasing and simple.

[0026] 3. Improved reliability and elimination of welding defects; reduced length of exposed joints at pole connections, effectively improving product bending moment strength; savings in anti-corrosion materials and labor costs; compatibility with automated welding equipment, reducing reliance on manual skills; full concrete encapsulation, enhancing structural corrosion resistance. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the welded rod flange connection disclosed in two fundamental utility models;

[0030] Reference numerals: 1. Bolt hole; 2. Second flange; 3. Second stiffening plate; 4. First flange; 5. Reinforcing stiffening plate; 6. Reinforcing bar; 7. Steel plate ring; 8. Flange steel ring. Detailed Implementation

[0031] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Example 1

[0036] like Figures 1 to 2 As shown, this embodiment provides an inner flange for a non-prestressed concrete pole, including a flange steel ring 8, a first flange 4 fitted on one end of the flange steel ring 8, a second flange 2 fitted on the other end of the flange steel ring 8, a steel plate ring 7 disposed on the side of the first flange 4 away from the flange steel ring 8, and multiple reinforcing bars 6 welded to the outer wall of the steel plate ring 7.

[0037] The steel plate ring 7, the flange steel ring 8, the first flange 4, and the second flange 2 are coaxially arranged. There is an external concrete reserved area between the outer wall of the steel plate ring 7 and the outer wall of the first flange 4, and there is an internal concrete reserved area between the inner wall of the steel plate ring 7 and the inner wall of the first flange 4. Both the external and internal concrete reserved areas are used to fill concrete. The diameter of each reinforcing bar 6 is smaller than the width of the external concrete reserved area.

[0038] Specifically, the flange design of this scheme reduces the size of the steel plate ring 7, and welds multiple steel bars 6 around the steel plate ring 7, ensuring that the steel plate ring 7 and steel bars 6 are completely embedded in the concrete after molding. With this process, the steel plate ring 7 is completely inside the concrete after molding, and no additional anti-corrosion treatment is required. Secondly, the welding operation of the steel bars 6 is very convenient, and the welding parts can be welded from all directions, resulting in more reliable quality. In addition, it is more convenient to pour concrete.

[0039] After the steel plate ring 7 is placed outside the steel reinforcement cage 6, the flow resistance of concrete is reduced, which can avoid the accumulation of concrete aggregate, reduce the concrete cavity, and improve the pouring density; the inner wall of the steel plate ring 7 forms a smooth transition surface, without concrete accumulation. It is aesthetically pleasing and simple.

[0040] Example 2

[0041] like Figures 1 to 2 As shown, this embodiment provides an inner flange for a non-prestressed concrete pole, including a flange steel ring 8, a first flange 4 fitted on one end of the flange steel ring 8, a second flange 2 fitted on the other end of the flange steel ring 8, a steel plate ring 7 disposed on the side of the first flange 4 away from the flange steel ring 8, and multiple reinforcing bars 6 welded to the outer wall of the steel plate ring 7.

[0042] The steel plate ring 7, the flange steel ring 8, the first flange 4, and the second flange 2 are coaxially arranged. There is an external concrete reserved area between the outer wall of the steel plate ring 7 and the outer wall of the first flange 4, and there is an internal concrete reserved area between the inner wall of the steel plate ring 7 and the inner wall of the first flange 4. Both the external and internal concrete reserved areas are used to fill concrete. The diameter of each reinforcing bar 6 is smaller than the width of the external concrete reserved area.

[0043] Multiple reinforcing bars 6 are evenly distributed around the circumference on the outer wall of the steel plate ring 7. The multiple reinforcing bars 6 are welded to the outer wall of the steel plate ring 7 using a circumferential symmetrical reinforcement welding method.

[0044] Specifically, multiple reinforcing bars 6 are welded to the outer wall of the steel plate ring 7 using a circumferential symmetrical reinforcement welding method. This method provides ample operating space for the welding gun, enabling full welding at multiple angles and meeting the effective welding length and width requirements.

[0045] The ratio of the width of the external concrete reserved area to the width of the internal concrete reserved area is 1:1 to 3:1.

[0046] The bottom of the outer wall of the flange ring 8 has several reinforcing ribs 5 that are evenly distributed around the circumference and connected to the first flange 4.

[0047] The reinforcing rib 5 is an isosceles right triangle. One right-angled side of the reinforcing rib 5 is welded to the bottom of the outer wall of the steel plate ring 7, and the other right-angled side of the reinforcing rib 5 is welded to the upper surface of the first flange 4.

[0048] Example 3

[0049] This embodiment is a further optimization based on embodiment 2, as detailed below:

[0050] Several second stiffening plates 3 are evenly distributed around the circumference of the outer wall of the flange steel ring 8.

[0051] Each of the second stiffening plates 3 is a square stiffening plate. The inner sidewalls of each square stiffening plate are fixed to the outer wall of the flange steel ring 8 by welding. The two ends of each square stiffening plate are welded to the first flange 4 and the second flange 2, respectively.

[0052] The length of each square stiffener is the distance between the first flange 4 and the second flange 2, and the width of each square stiffener is the distance from the outer wall of the flange steel ring 8 to the outer wall of the first flange 4.

[0053] The first flange 4 and the second flange 2 have the same dimensions.

[0054] The second flange 2 has multiple bolt holes 1 evenly distributed around its circumference, with each bolt hole 1 located on the second flange 2 between two adjacent square stiffening plates.

[0055] Specifically, the bolt holes 1 of the second flange 2 of the inner flange of one pole are connected to the bolt holes 1 of the second flange 2 of the inner flange of another pole via bolts.

Claims

1. An inner flange for a non-prestressed concrete utility pole, characterized in that, It includes a flange ring (8), a first flange (4) fitted on one end of the flange ring (8), a second flange (2) fitted on the other end of the flange ring (8), a steel plate ring (7) set on the side of the first flange (4) away from the flange ring (8), and multiple steel bars (6) welded to the outer wall of the steel plate ring (7). The steel plate ring (7), the flange steel ring (8), the first flange (4), and the second flange (2) are coaxially arranged. There is an external concrete reserved area between the outer wall of the steel plate ring (7) and the outer wall of the first flange (4). There is an internal concrete reserved area between the inner wall of the steel plate ring (7) and the inner wall of the first flange (4). Both the external concrete reserved area and the internal concrete reserved area are used to fill concrete. The diameter of each steel bar (6) is smaller than the width of the external concrete reserved area.

2. The inner flange of a non-prestressed concrete pole according to claim 1, characterized in that, Multiple steel bars (6) are evenly distributed around the outer wall of the steel plate ring (7), and the multiple steel bars (6) are welded to the outer wall of the steel plate ring (7) in a circumferential symmetrical reinforcement welding manner.

3. The inner flange of a non-prestressed concrete pole according to claim 1, characterized in that, The ratio of the width of the external concrete reserved area to the width of the internal concrete reserved area is 1:1 to 2:

1.

4. The inner flange of a non-prestressed concrete pole according to claim 1, characterized in that, The outer wall of the flange steel ring (8) is evenly distributed with several reinforcing ribs (5) that are connected to the first flange (4) in a circular pattern at the bottom.

5. The inner flange of a non-prestressed concrete pole according to claim 4, characterized in that, The reinforcing rib (5) is an isosceles right triangle. One right-angled side of the reinforcing rib (5) is welded to the bottom of the outer wall of the steel plate ring (7), and the other right-angled side of the reinforcing rib (5) is welded to the upper surface of the first flange (4).

6. The inner flange of a non-prestressed concrete pole according to claim 1, characterized in that, The outer wall of the flange steel ring (8) is evenly distributed with several second stiffening plates (3) around the circumference.

7. The inner flange of a non-prestressed concrete pole according to claim 6, characterized in that, Each of the second stiffening plates (3) is a square stiffening plate. The inner sidewall of each square stiffening plate is fixed to the outer wall of the flange steel ring (8) by welding. The two ends of each square stiffening plate are respectively welded to the first flange (4) and the second flange (2).

8. The inner flange of a non-prestressed concrete pole according to claim 7, characterized in that, The length of each of the square stiffeners is the distance between the first flange (4) and the second flange (2), and the width of each of the square stiffeners is the distance from the outer wall of the flange steel ring (8) to the outer wall of the first flange (4).

9. The inner flange of a non-prestressed concrete pole according to claim 8, characterized in that, The first flange (4) has the same inner and outer diameter as the second flange (2).

10. The inner flange of a non-prestressed concrete pole according to claim 8, characterized in that, The second flange (2) has a plurality of bolt holes (1) evenly distributed around its circumference, and each bolt hole (1) is arranged on the second flange (2) between two adjacent square stiffeners.

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