Energy-saving and consumption-reducing type prestressed concrete pole

Abstract

The utility model discloses an energy-saving and consumption-reducing type prestressed concrete electric pole which comprises an electric pole body, the electric pole body comprises a concrete layer, the inner side of the concrete layer is provided with a steel bar hoop and a threaded steel bar, the threaded steel bar is fixedly connected with the steel bar hoop, the outer side of the concrete layer is fixedly connected with a surface layer, and the surface layer is fixedly connected with the surface layer. Fiber mesh cloth is arranged on the portion, located on the inner side of the surface layer, of the outer side of the concrete layer, the twisted steel and the steel bar hoop are welded, the outer wall of the surface layer is a smooth surface, connecting parts are integrally poured at the two ends of the electric pole, connecting bolts are connected to the connecting parts, and a reinforcing piece is arranged in the electric pole. According to the prestressed concrete electric pole, the connecting parts and the connecting bolts are arranged, the splicing type design is adopted, a plurality of prestressed concrete electric poles can be spliced to form the prestressed concrete electric pole, the problems that an existing prestressed concrete electric pole is long and inconvenient to transport are solved, and transportation is more convenient, faster and more labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of electric poles, in particular to an energy-saving and consumption-reducing prestressed concrete electric pole. Background Art

[0002] Electric poles support overhead wires. Common electric poles include wooden poles, cement poles, and power towers. Concrete poles are made of concrete and steel bars or steel wires. There are two types: prestressed and non-prestressed. Iron poles are cast from pig iron. The cross-sections of electric poles include square, octagonal, I-shaped, circular or other special-shaped sections. The most commonly used are circular and square sections. Existing circular prestressed concrete poles are usually fixed to the base by bolts, and a large amount of cement is required during the production of prestressed concrete poles, which results in a large loss of cement resources.

[0003] The existing technology has the following problems:

[0004] After extensive searching, it was found that Chinese Patent Publication No.: CN114439298A discloses an energy-saving and consumption-reducing prestressed concrete pole, including a pole, the pole including a concrete layer, a steel bar hoop and a threaded steel bar are arranged on the inner side of the concrete layer, the threaded steel bar is fixedly connected to the steel bar hoop, the outer side of the concrete layer is fixedly connected to a surface layer, a fiber mesh is arranged on the outer side of the concrete layer and located on the inner side of the surface layer, the threaded steel bar and the steel bar hoop are connected by welding, and the outer wall of the surface layer is a smooth surface. The patent is provided with slag, which is beneficial to make the concrete layer have excellent early strength and durability, thereby saving the amount of cement used in the production of the pole, thereby reducing energy loss, reducing environmental pollution, and reducing production costs.

[0005] However, the above patent still has problems that need to be improved during actual use. The most obvious one is that the prestressed concrete poles cast in one piece are relatively long, which makes them inconvenient to transport.

[0006] To this end, we proposed energy-saving and consumption-reducing prestressed concrete poles to solve the above-mentioned drawbacks. Utility Model Content

[0007] The utility model aims to solve the shortcomings of the prior art and proposes an energy-saving and consumption-reducing prestressed concrete pole.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an energy-saving and consumption-reducing prestressed concrete pole, comprising a pole, the pole comprising a concrete layer, a steel bar hoop and a threaded steel bar are arranged on the inner side of the concrete layer, the threaded steel bar is fixedly connected to the steel bar hoop, the outer side of the concrete layer is fixedly connected to a surface layer, a fiber mesh is arranged on the outer side of the concrete layer and located on the inner side of the surface layer, the threaded steel bar is welded to the steel bar hoop, the outer wall of the surface layer is a smooth surface, connecting parts are integrally cast at both ends of the pole, and connecting bolts are connected to the connecting parts, and a reinforcement member is arranged inside the pole.

[0009] Preferably, a plurality of the reinforcement members are provided, and the plurality of reinforcement members are equidistantly distributed on the inner wall of the pole.

[0010] Preferably, the concrete layer is made of the following materials: cement, sand, stone, admixtures, additives, and fibers.

[0011] Preferably, the stone is selected from granite, hard sandstone and limestone, the stone is crushed stone, the maximum crushed stone particle diameter is less than 25 mm, and the stone can improve the strength of the concrete layer inside the pole.

[0012] Preferably, the admixtures are fly ash, slag and silica ash, the fly ash is added in an amount of 20 to 30 percent, the fly ash has a fine powder filling effect and a volcanic ash activity effect, the slag has a specific surface area of ​​350 square meters per kilogram, the silica ash has a mesh size of 15,000 square meters per kilogram, and the silica ash is added in an amount of 5 to 10 percent of cement. The admixtures are used to improve the rheological properties of concrete mixtures, the silica ash can improve the density and strength of the concrete layer, the slag can improve the early strength and durability of the concrete layer, and the fly ash reduces the water-cement ratio by utilizing the lubricating effect of the glass microspheres contained therein.

[0013] Preferably, the additive is a water reducing agent, and the additive also includes: an air entraining agent, a retarder, a waterproofing agent, an expansive agent, and an antifreeze agent. The water reducing agent is a surfactant. The water reducing agent improves the fluidity of cement slurry, so that concrete prepared with a low water-cement ratio has a high slump. At the same time, it can also promote the hydration of cement and improve the early strength.

[0014] Preferably, the fiber mesh is steel fiber, the aspect ratio of the steel fiber is sixty to one hundred, the amount of the steel fiber added is 0.5% to 1.3%, and when the steel fiber is added, steel fibers with a thin diameter and a non-circular cross-sectional shape should be selected. The steel fiber added to concrete can increase the tensile strength by about 2 times and the impact strength by more than 5 times.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model provides a connecting part and a connecting bolt and adopts a splicing design, so that multiple prestressed concrete poles can be spliced ​​into one prestressed concrete pole, which solves the problem that the existing prestressed concrete poles are too long and inconvenient to transport, and the transportation is more convenient and labor-saving.

[0017] 2. In the present invention, by providing a reinforcing member, the structural strength of the hollow prestressed concrete pole can be enhanced, thereby further improving the structural strength of the prestressed concrete pole and reducing the risk of deformation of the prestressed concrete pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the energy-saving and consumption-reducing prestressed concrete pole proposed by the utility model;

[0020] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0021] Figure 3 This is a cross-sectional view of the energy-saving and consumption-reducing prestressed concrete pole proposed by the utility model;

[0022] Figure 4 This is a three-dimensional diagram of the energy-saving and consumption-reducing prestressed concrete pole proposed by the utility model.

[0023] Legend:

[0024] 1. Concrete layer; 2. Surface layer; 3. Connection part; 4. Connection bolts; 5. Fiber mesh; 6. Threaded steel bars; 7. Steel bar hoop; 8. Reinforcement. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Please refer to Figure 1-4 The energy-saving and consumption-reducing prestressed concrete pole comprises a pole, the pole comprises a concrete layer 1, a steel bar hoop 7 and a threaded steel bar 6 are arranged on the inner side of the concrete layer 1, the threaded steel bar 6 and the steel bar hoop 7 are fixedly connected, a surface layer 2 is fixedly connected to the outer side of the concrete layer 1, a fiber mesh cloth 5 is arranged on the outer side of the surface layer 2, the threaded steel bar 6 and the steel bar hoop 7 are welded, the outer wall of the surface layer 2 is a smooth surface, both ends of the pole are integrally cast with a connecting part 3, and the connecting part 3 is connected with a connecting bolt 4, a reinforcing member 8 is arranged in the pole, the threaded steel bar 6 and the steel bar hoop 7 are connected by a staff, and then the threaded steel bar 6 and the steel bar hoop 7 are put into the pole production mold, and the fiber mesh cloth 5 is put into the outer layer of the pole production mold, and the water is mixed by a mixing device. Mud, sand, stone, admixture, additive and fiber are mixed to form concrete, which is then poured into a mold to form an electric pole. At this point, the electric pole is completed. It should be noted that the reinforcement 8 is connected to the concrete layer 1, so the pole can be poured together with the concrete layer 1 during the production process. By providing a connecting portion 3 and a connecting bolt 4 and adopting a splicing design, multiple prestressed concrete poles can be spliced ​​together to form a prestressed concrete pole, which solves the problem that the existing prestressed concrete poles are too long and inconvenient to transport, making transportation more convenient and labor-saving. Secondly, the reinforcement 8 can strengthen the structural strength of the hollow prestressed concrete pole, further improve the structural strength of the prestressed concrete pole, and reduce the risk of deformation of the prestressed concrete pole.

[0028] In this embodiment: a plurality of reinforcement members 8 are provided, and the plurality of reinforcement members 8 are evenly distributed on the inner wall of the pole.

[0029] Specifically, the structural strength of prestressed concrete poles is greatly improved.

[0030] In this embodiment: the concrete layer 1 is made of the following materials: cement, sand, stone, admixture, additives, and fiber.

[0031] Specifically, a combination of various materials is used to reduce the amount of concrete used, increase the amount of waste materials used, turn waste into treasure, and save more energy and reduce consumption.

[0032] In this embodiment: the stone material is granite, hard sandstone and limestone, the stone material is crushed stone, and the maximum crushed stone particle diameter is less than 25 mm. The stone material can improve the strength of the concrete layer 1 inside the pole.

[0033] Specifically, the strength of the prestressed concrete poles is ensured to be less prone to damage.

[0034] In this embodiment: the admixtures are fly ash, slag and silica ash, the admixture amount of fly ash is 20% to 30%, fly ash has fine powder filling effect and volcanic ash activity effect, the specific surface area of ​​slag is 350 square meters per kilogram, the mesh size of silica ash is 15,000 square meters per kilogram, the admixture amount of silica ash is 5% to 10% of cement, the admixture is used to improve the rheological properties of concrete mixture, silica ash can improve the density and strength of concrete layer 1, slag can improve the early strength and durability of concrete layer 1, fly ash uses the lubricating effect of glass beads contained therein to reduce the water-cement ratio.

[0035] Specifically, by providing silica fume, it is beneficial to improve the impermeability, frost resistance, wear resistance and alkali resistance of the concrete layer 1; by providing fly ash, it is beneficial to turn industrial waste into treasure, and at the same time improve the rheological properties of the concrete mixture, and increase the strength and durability of the concrete; by providing slag, it is beneficial to make the concrete layer 1 have excellent early strength and durability, and then save the amount of cement used in the production of electric poles, thereby reducing energy loss, reducing environmental pollution, and reducing production costs.

[0036] In this embodiment: the additive is a water reducing agent, and the additive also includes: an air entraining agent, a retarder, a waterproofing agent, an expansive agent, and an antifreeze agent. The water reducing agent is a surfactant. The water reducing agent improves the fluidity of the cement slurry, so that the concrete prepared with a low water-cement ratio has a high slump. At the same time, it can also promote the hydration of cement and improve the early strength.

[0037] Specifically, it is conducive to making the concrete have high density, that is, high strength, high durability, and excellent construction performance.

[0038] In this embodiment: the fiber mesh 5 is steel fiber, the aspect ratio of the steel fiber is sixty to one hundred, the steel fiber addition amount is 0.5% to 1.3%, and when the steel fiber is added, it is necessary to use steel fibers with a thin diameter and a non-circular cross-sectional shape. The addition of steel fibers to concrete can increase the tensile strength by about 2 times and the impact strength by more than 5 times.

[0039] Specifically, the provision of steel fibers is beneficial to improving the tensile and bending resistance of concrete and increasing its toughness.

[0040] Working principle: When in use, the staff connects the threaded steel bar 6 with the steel bar hoop 7, and then puts the threaded steel bar 6 and the steel bar hoop 7 into the pole production mold, and at the same time puts the fiber mesh cloth 5 into the outer layer of the pole production mold, and then uses the mixing device to mix cement, sand, stone, admixture, additives, and fiber to form concrete, and then pours it into the mold to form the pole. At this time, the pole is completed. It should be noted that the reinforcement 8 is connected to the concrete layer 1, so it can be poured with the concrete layer 1 during the pole production process. By setting the connecting part 3 and the connecting bolt 4 and adopting a splicing design, multiple prestressed concrete poles can be spliced ​​into a prestressed concrete pole, which solves the problem that the existing prestressed concrete poles are long and inconvenient to transport, and the transportation is more convenient and labor-saving. Secondly, the reinforcement 8 can play the effect of strengthening the structural strength in the hollow prestressed concrete pole, further improve the structural strength of the prestressed concrete pole, and reduce the risk of deformation of the prestressed concrete pole.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An energy-saving and consumption-reducing prestressed concrete pole, comprising a pole, characterized in that: The electric pole comprises a concrete layer (1), a steel bar hoop (7) and a threaded steel bar (6) are arranged on the inner side of the concrete layer (1), the threaded steel bar (6) and the steel bar hoop (7) are fixedly connected, the outer side of the concrete layer (1) is fixedly connected to a surface layer (2), a fiber mesh cloth (5) is arranged on the outer side of the concrete layer (1) and located on the inner side of the surface layer (2), the threaded steel bar (6) and the steel bar hoop (7) are welded, the outer wall of the surface layer (2) is a smooth surface, both ends of the electric pole are integrally cast with a connecting portion (3), and the connecting portion (3) is connected with a connecting bolt (4), and a reinforcing member (8) is arranged inside the electric pole.

2. The energy-saving and consumption-reducing prestressed concrete pole according to claim 1 is characterized in that: A plurality of the reinforcement members (8) are provided, and the plurality of reinforcement members (8) are evenly distributed on the inner wall of the pole.

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