Rotary excavating foundation street lamp

Abstract

The utility model provides a rotary excavating foundation street lamp which comprises an underground foundation part and an overground part, the underground foundation part is arranged in a foundation pit excavated on the ground, the foundation pit is a cylindrical pile pit hole excavated by a rotary excavating mechanism and provided with a smooth edge, the overground part is connected to the underground foundation part and arranged above the ground, and the overground part comprises a lamp pole. A lighting lamp set is arranged at the top of the lamp pole, the underground foundation part comprises a reinforcement cage and a concrete block poured in a foundation pit, and a wire inlet pipe is arranged in the concrete block in a penetrating mode. The underground foundation of the street lamp is firm and high in pre-embedding positioning precision, and the forming quality of a concrete structure is good.

Description

Technical Field

[0001] The utility model relates to the technical field of road administration facilities, and particularly relates to a rotary drilling foundation street lamp. Background Art

[0002] With the continuous progress of society, night lighting is becoming increasingly important in urban facilities. As the main lighting equipment for roads at night, ensuring the stability of its installation foundation and service life plays a key role. The street lamp foundation usually uses a concrete base, and the base is directly poured on the ground pit that has been constructed in advance.

[0003] Traditional street lamp foundations mostly use the method of manual excavation construction. Due to the unstable quality control that may exist in manual excavation, the shape of the street lamp foundation may be irregular and relatively rough. Moreover, the embedded steel bars in the street lamp foundation are directly inserted into the ground pit, making it difficult to ensure the accuracy of their positioning. As a result, the installation of the street lamp in the street lamp foundation is not stable and firm, affecting the quality of the street lamp foundation, leading to a shorter service life of the street lamp and posing a safety risk. Summary of the Invention

[0004] To overcome the deficiencies of the prior art, the utility model provides a rotary drilling foundation street lamp with a reliable underground foundation, high precision of embedded part positioning, and good forming quality of the concrete structure.

[0005] To achieve the above object, the rotary drilling foundation street lamp of the utility model includes an underground foundation part and an above-ground part. The underground foundation part is arranged in a foundation pit excavated on the ground. The foundation pit is a cylindrical pile pit with smooth edges dug by a rotary drilling mechanism. The above-ground part is connected to the underground foundation part and is arranged above the ground. The above-ground part includes a lamp post, and an illumination lamp group is arranged at the top of the lamp post. The underground foundation part includes a steel reinforcement cage and a concrete block poured in the foundation pit. A wiring pipe penetrates through the concrete block.

[0006] Further, the steel reinforcement cage includes a plurality of parallel outer steel reinforcement rings. The outer steel reinforcement rings are annular and are arranged parallel to the ground. The steel reinforcement cage further includes a plurality of outer peripheral steel bars arranged on the outer periphery of the outer steel reinforcement rings. The outer peripheral steel bars are arranged vertically and are evenly distributed at equal intervals on the circumference of the outer steel reinforcement rings.

[0007] Further, the steel reinforcement cage further includes a plurality of parallel annular steel plates. The annular steel plates are annular, and the diameter of the annular steel plates is smaller than that of the outer steel reinforcement rings. The annular steel plates are arranged parallel to the ground. A plurality of inner peripheral steel bars for connecting the lamp post are arranged on the annular steel plates. The inner peripheral steel bars are arranged vertically and penetrate through the annular steel plates. The inner peripheral steel bars are evenly distributed at equal intervals on the circumference of the annular steel plates.

[0008] Further, transverse steel bars are connected between the outer peripheral steel bars and the inner peripheral steel bars.

[0009] Furthermore, the top end of the outer peripheral steel bar is located below the ground, the top end of the inner peripheral steel bar is located above the ground, the top of the inner peripheral steel bar has an external thread, and the length of the outer peripheral steel bar is greater than the length of the inner peripheral steel bar.

[0010] Furthermore, the top end of the outer peripheral steel bar bends towards the inner side of the foundation pit and extends horizontally, and the bottom end of the outer peripheral steel bar bends towards the inner side of the foundation pit and forms a U shape.

[0011] Furthermore, the bottom end of the inner peripheral steel bar bends towards the outer side of the foundation pit and forms a U shape.

[0012] Furthermore, a grounding electrode is also provided in the foundation of the ground outside the foundation pit, and a ground wire connecting the grounding electrode is provided on the inner peripheral steel bar.

[0013] Furthermore, a corrugated reinforcing ring is provided at the bottom of the lamp post.

[0014] The underground foundation of the rotary drilling foundation street lamp of the present utility model is firm, the embedded positioning accuracy is high, and the forming quality of the concrete structure is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described and elaborated below with reference to the drawings.

[0016] Figure 1 is a schematic structural diagram of a rotary drilling foundation street lamp according to a preferred embodiment of the present utility model.

[0017] Figure 2 is a schematic structural diagram for showing the underground foundation part.

[0018] Reference numerals: 1, underground foundation part; 11, outer steel bar ring; 12, outer peripheral steel bar; 13, annular steel plate; 14, inner peripheral steel bar; 15, transverse steel bar; 2, lamp post; 21, corrugated reinforcing ring; 3, lighting lamp group; 4, steel reinforcement cage; 5, concrete block; 6, foundation pit; 7, inlet pipe; 8, grounding electrode; 81, ground wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solution of the present utility model will be more clearly and completely elaborated below by describing the preferred embodiments of the present utility model with reference to the drawings.

[0020] As Figure 1 and Figure 2As shown in the figure, the rotary drilling foundation street lamp of the preferred embodiment of the present utility model includes an underground foundation part 1 and an above-ground part. The underground foundation part 1 is arranged in a foundation pit 6 excavated on the ground. The foundation pit 6 is a cylindrical pile hole with a smooth edge dug by a rotary drilling mechanism. The underground foundation part 1 includes a steel reinforcement cage 4 and a concrete block 5 poured in the foundation pit 6. A conduit inlet pipe 7 is penetrated in the concrete block 5. The above-ground part is connected to the underground foundation part 1. The above-ground part is arranged above the ground. The above-ground part includes a lamp post 2. A lighting lamp group 3 is arranged at the top of the lamp post 2. A wavy reinforcing ring 21 is arranged at the bottom of the lamp post 2.

[0021] As Figure 2 shown in the figure, the steel reinforcement cage 4 includes a plurality of parallel outer steel reinforcement rings 11. The outer steel reinforcement rings 11 are annular. The outer steel reinforcement rings 11 are arranged parallel to the ground. The steel reinforcement cage 4 further includes a plurality of outer peripheral steel bars 12 arranged on the outer periphery of the outer steel reinforcement rings 11. The outer peripheral steel bars 12 are arranged along the vertical direction. The outer peripheral steel bars 12 are evenly distributed at equal intervals on the circumference of the outer steel reinforcement rings 11. The top ends of the outer peripheral steel bars 12 are located below the ground. The top ends of the outer peripheral steel bars 12 are bent inward towards the foundation pit 6 and extend horizontally. The bottom ends of the outer peripheral steel bars 12 are bent inward towards the foundation pit 6 and form a U shape.

[0022] As Figure 2 shown in the figure, the steel reinforcement cage 4 further includes a plurality of parallel annular steel plates 13. The annular steel plates 13 are annular. The diameter of the annular steel plates 13 is smaller than the diameter of the outer steel reinforcement rings 11. The annular steel plates 13 are arranged parallel to the ground. A plurality of inner peripheral steel bars 14 for connecting the lamp post 2 are arranged on the annular steel plates 13. The inner peripheral steel bars 14 are arranged along the vertical direction. The inner peripheral steel bars 14 penetrate through the annular steel plates 13. The inner peripheral steel bars 14 are evenly distributed at equal intervals on the circumference of the annular steel plates 13. Transverse steel bars 15 are connected between the outer peripheral steel bars 12 and the inner peripheral steel bars 14.

[0023] As Figure 2 shown in the figure, the top ends of the inner peripheral steel bars 14 are located above the ground. The length of the outer peripheral steel bars 12 is greater than the length of the inner peripheral steel bars 14. The top of the inner peripheral steel bars 14 has an external thread. The bottom ends of the inner peripheral steel bars 14 are bent outward towards the outside of the foundation pit 6 and form a U shape.

[0024] As Figure 2 shown in the figure, a grounding electrode 8 is further arranged in the foundation outside the foundation pit 6. A ground wire 81 for connecting the grounding electrode 8 is arranged on the inner peripheral steel bars 14.

[0025] The underground foundation of the rotary drilling foundation street lamp of the present utility model is firm, the embedded positioning accuracy is high, and the forming quality of the concrete structure is good.

[0026] The above specific embodiments only describe the preferred embodiments of the present utility model, rather than limiting the protection scope of the present utility model. Without departing from the design concept and spirit scope of the present utility model, various deformations, substitutions and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model according to the written description and drawings provided by the present utility model shall all fall within the protection scope of the present utility model. The protection scope of the present utility model is determined by the claims.

Claims

1. A rotary drilling foundation street lamp, characterized in that, It includes an underground foundation part (1) and an above-ground part. The underground foundation part (1) is arranged in a foundation pit (6) excavated on the ground. The foundation pit (6) is a cylindrical pile hole with a smooth edge dug by a rotary drilling mechanism. The above-ground part is connected to the underground foundation part (1), and the above-ground part is arranged above the ground. The above-ground part includes a lamp post (2), and a lighting lamp group (3) is provided at the top of the lamp post (2). The underground foundation part (1) includes a steel reinforcement cage (4) and a concrete block (5) poured in the foundation pit (6). A conduit inlet pipe (7) is penetrated in the concrete block (5).

2. The rotary dug foundation street lamp according to claim 1, characterized in that, The steel reinforcement cage (4) includes a plurality of parallel outer steel reinforcement rings (11). The outer steel reinforcement rings (11) are annular, and the outer steel reinforcement rings (11) are arranged parallel to the ground. The steel reinforcement cage (4) further includes a plurality of outer peripheral steel bars (12) arranged on the outer periphery of the outer steel reinforcement rings (11). The outer peripheral steel bars (12) are arranged in the vertical direction, and the outer peripheral steel bars (12) are evenly distributed at equal intervals on the circumference of the outer steel reinforcement rings (11).

3. The rotary excavated foundation street lamp according to claim 2, characterized in that, The steel reinforcement cage (4) further includes a plurality of parallel annular steel plates (13). The annular steel plates (13) are annular, and the diameter of the annular steel plates (13) is smaller than the diameter of the outer steel reinforcement rings (11). The annular steel plates (13) are arranged parallel to the ground. A plurality of inner peripheral steel bars (14) for connecting the lamp post (2) are provided on the annular steel plates (13). The inner peripheral steel bars (14) are arranged in the vertical direction. The inner peripheral steel bars (14) penetrate through the annular steel plates (13), and the inner peripheral steel bars (14) are evenly distributed at equal intervals on the circumference of the annular steel plates (13).

4. The rotary drilling foundation street lamp according to claim 3, characterized in that, A transverse steel bar (15) is connected between the outer peripheral steel bar (12) and the inner peripheral steel bar (14).

5. The rotary dug foundation street lamp according to claim 3, characterized in that, The top end of the outer peripheral steel bar (12) is located below the ground, the top end of the inner peripheral steel bar (14) is located above the ground, the top of the inner peripheral steel bar (14) has an external thread, and the length of the outer peripheral steel bar (12) is greater than the length of the inner peripheral steel bar (14).

6. The rotary excavation foundation street lamp according to claim 3, characterized in that, The top end of the outer peripheral steel bar (12) bends inward to the foundation pit (6) and extends in the horizontal direction. The bottom end of the outer peripheral steel bar (12) bends inward to the foundation pit (6) and forms a U shape.

7. The rotary drilling foundation street lamp according to claim 3, wherein, The bottom end of the inner peripheral steel bar (14) bends outward to the foundation pit (6) and forms a U shape.

8. The rotary excavated foundation street lamp according to claim 3, characterized in that, A grounding electrode (8) is further provided in the foundation outside the foundation pit (6). A ground wire (81) for connecting the grounding electrode (8) is provided on the inner peripheral steel bar (14).

9. The rotary dug foundation street lamp according to claim 1, characterized in that, A corrugated reinforcing ring (21) is provided at the bottom of the lamp post (2).

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