Cantilever type multifunctional rod suitable for soft geological strata

Abstract

The utility model relates to the technical field of manufacturing of multifunctional rod facilities, in particular to a cantilever type multifunctional rod suitable for a soft geological layer. The foundation serves as a bearing foundation of the bottom column rod. The at least two cantilever beams cooperate to load a mounting facility and are assembled with the bottom column rod into a whole. The foundation is a deep pile type cast-in-place concrete foundation. The concrete body forming body is formed by solidification in cast-in-place concrete drill holes, and is formed by combining a large-diameter concrete body and a small-diameter concrete body in sequence. And the design length and the forming volume of the small-diameter concrete body are limited. The column foot positioning steel plate is embedded in the top of the large-diameter concrete body, and traction of the bottom column rod is achieved by means of the multiple column foot bolts. Therefore, on one hand, the anti-plugging capacity and the anti-bending moment capacity of the foundation are effectively improved; and on the other hand, the stability of fixed connection between the bottom column rod and the foundation is guaranteed, and the load capacity of the cantilever type multifunctional rod is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to multi -functional pole facility manufacturing technical field especially a cantilever type multi -functional pole suitable for soft geological layer. BACKGROUND

[0002] The road multi -functional pole takes the pole body as the carrier, and provides road guidance, traffic guidance, city monitoring, information interaction and city public service and various functions for the citizens through hanging various facilities.

[0003] According to the actual situation, the dead weight and the windward area of the hanging facility are usually large, for example, the weight per unit area of the full transparent active light-emitting signboard of the large-scale lane / road signboard is more than 50KG / m 2 , and the total area reaches 10m 2 . And the end of the cross beam also needs to consider at least 100Kg of maintenance load, so the cantilever type multi -functional pole has strong load capacity. In the case of soft geological layer, the bottom column rod is more prone to attitude tilt and even collapse. The reason is that the design structure of the foundation for bearing the bottom column rod is unreasonable, and the depth of the soil layer is insufficient, so that the design strength and bending moment capacity are difficult to meet the actual application requirements. Specifically, when it is subjected to excessive pulling force, it is easy to be pulled out of the soil layer, or when it is subjected to lateral force, its attitude is easy to tilt. Therefore, technical personnel are needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] Therefore, the subject research and development group of the utility model in view of the above problems and defects collects relevant data, evaluates and considers from all sides, and finally leads to the emergence of the cantilever type multi -functional pole suitable for soft geological layer through continuous experiments and modifications of the subject research and development group personnel.

[0005] In order to solve the above technical problems, the utility model relates to a cantilever type multi -functional pole suitable for soft geological layer, which comprises a foundation, a bottom column rod, a cantilever beam and a hanging facility. The foundation is the installation and bearing foundation of the bottom column rod. At least two cantilever beams are coordinated to load the hanging facility, and the cantilever beams are detachably assembled with the bottom column rod. The hanging facility includes large-scale lane sign, large-scale road sign, traffic signal lamp, public security monitoring equipment and traffic monitoring equipment. The foundation is a deep pile type cast-in-place concrete foundation, which comprises a concrete body forming body, a column foot positioning steel plate and a column foot bolt. The concrete body forming body is solidified in the cast-in-place concrete drilling, and along the direction from top to bottom, it is sequentially combined by large-diameter concrete body and small-diameter concrete body. The small-diameter concrete body is continuously extended downward from the large-diameter concrete body, and the design length is not less than 1m, and the forming volume is not less than 1.5m 3The column foot positioning steel plate is embedded on the top of the large-diameter concrete body and is fixed to the bottom column rod by the column foot bolts.

[0006] As a further improvement of the disclosed technical scheme, the height of the large-diameter concrete body is H. The column foot bolt is used to fix the large-diameter concrete body and the bottom column rod together, and the column foot bolt crosses the column foot positioning steel plate and penetrates into the large-diameter concrete body by a length L not less than 4 / 5H.

[0007] As a further improvement of the disclosed technical scheme, the lower end of the column foot bolt is bent to form a tensile bending section.

[0008] As a further improvement of the disclosed technical scheme, the foundation further comprises a concrete covering protection body. The concrete covering protection body is poured on the top wall of the large-diameter concrete body and is made of C20 concrete. The head of the column foot bolt and the locking nut and the gasket attached thereto are hidden in the concrete covering protection body.

[0009] As a further improvement of the disclosed technical scheme, the bottom column rod is preferably a multi-ribbed and differently-diametered metal rod, and the outer diameter gradually decreases along the direction from bottom to top.

[0010] As a further improvement of the disclosed technical scheme, the cross section of the bottom column rod is quadrangular, hexagonal, octagonal or dodecagonal.

[0011] As a further improvement of the disclosed technical scheme, the cantilever beam is connected to the bottom column rod by a flange connection. The cantilever beam comprises a support arm and a connecting flange plate. The support arm and the connecting flange plate are fixed together by welding, and the included angle α between them is greater than 90°.

[0012] As a further improvement of the disclosed technical scheme, the cantilever beam is preferably a multi-ribbed and differently-diametered metal profile, and the outer diameter gradually decreases along the direction away from the bottom column rod.

[0013] As a further improvement of the disclosed technical scheme, the cantilevered multifunctional rod suitable for soft geological layers further comprises a night lighting unit. The night lighting unit comprises a strip-shaped mounting groove plate and a light-emitting body. The strip-shaped mounting groove plate is detachably fixed to the side wall of the bottom column rod, and its direction is consistent with the length direction of the bottom column rod. The light-emitting body is slidably inserted into the strip-shaped mounting groove plate.

[0014] As a further improvement of the disclosed technical scheme, according to different specific application scenarios, the light-emitting body is preferably selected as a light strip or a reflective strip.

[0015] In practical application, the cantilever type multifunctional rod disclosed by the utility model can achieve the following beneficial technical effects, specifically:

[0016] 1) The foundation adopts a deep pile type cast-in-situ concrete foundation design form, and the depth of the foundation into the ground and the formed volume are limited, so that the anti-pulling and anti-bending moment capabilities of the foundation are effectively improved, and the phenomenon of being pulled out of the soil layer or severely tilted in posture when the foundation is subjected to external force transmitted through the bottom column rod in practical application is avoided;

[0017] 2) The column foot positioning steel plate is embedded at the top of the large-diameter concrete body, and the plurality of column foot bolts pass through the column foot positioning steel plate and are rooted in the large-diameter concrete body, so that the stability of the fixed connection between the bottom column rod and the foundation can be effectively ensured, and the load capacity of the cantilever type multifunctional rod is improved;

[0018] 3) The plurality of cantilever beams are coordinated to load the facilities, so as to ensure that the cantilever type multifunctional rod has good load capacity; in addition, under the premise that the weight of the loaded facilities and the hanging position thereof are clear, the generated lateral forces are respectively applied to different height positions of the bottom column rod, so as to reduce the bending moment of the bottom column rod, and the probability of the lateral bending of the bottom column rod due to excessive bending moment is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 It is a structure schematic view of the cantilever type multifunctional rod suitable for soft geological layer disclosed by the utility model.

[0021] Figure 2 It is a structure schematic view of the foundation in the cantilever type multifunctional rod suitable for soft geological layer disclosed by the utility model.

[0022] Figure 3 It is a structure schematic view of the column foot bolt in the cantilever type multifunctional rod suitable for soft geological layer disclosed by the utility model.

[0023] Figure 4 It is a structure schematic view of the cantilever beam in the cantilever type multifunctional rod suitable for soft geological layer disclosed by the utility model.

[0024] Figure 5 It is Figure 1A-A sectional view of the figure 1.

[0025] 1-base; 11-concrete body forming body; 111-large-diameter concrete body; 112-small-diameter concrete body; 12-column foot positioning steel plate; 13-column foot bolt; 131-tensile bending section; 14-concrete cover protection body; 2-bottom column rod; 21-porous branch cabin; 3-cantilever beam; 31-supporting arm; 32-connecting flange plate; 4-hanging facility; 5-night lighting unit; 51-strip-shaped mounting groove plate; 52-reflective strip. DETAILED DESCRIPTION

[0026] The content of the utility model will be further explained in detail below in combination with specific embodiments, Figure 1 It is shown that the structure of the utility model discloses the cantilever type multifunctional rod suitable for soft geological layer, and it is known that it is mainly composed of base, bottom column rod, cantileave beam and hanging facility etc. Among them, the base 1 is as the installation, bearing base of bottom column rod 2. Two cantilever beams 3 are coordinated to load hanging facility 4, and it takes detachable mode to realize the assembly with bottom column rod 2. Two cantilever beams 3 are parallel to each other, and different position heights are occupied respectively. According to the difference of actual application scene, the hanging facility 4 can be arbitrarily selected large-sized branch board, large-sized guide board, traffic signal lamp, public security monitoring equipment or traffic monitoring equipment etc.

[0027] As shown in Figure 2 The base 1 is preferably deep pile type cast-in-place concrete foundation beneficial to on-site construction and excellent in combination strength with soil layer. The base 1 is mainly composed of concrete body forming body 11, column foot positioning steel plate 12 and column foot bolt 13 etc. The concrete body forming body 11 is formed by drilling and solidifying cast-in-place concrete, that is, in the process of drilling hole in foundation soil layer by soil drill, the concrete is pumped into the hole from the reinforcement hanging basket by the aid of concrete pump, at the same time, the reinforcement arrangement is carried out simultaneously in the process of filling concrete, and the concrete body forming body 11 is solidified and formed. Along the direction from top to bottom, the concrete body forming body 11 is combined by large-diameter concrete body 111 and small-diameter concrete body 112 in sequence. The small-diameter concrete body 112 is formed by the continuous downward extension of the large-diameter concrete body 111, and the design length is not less than 1 m, and the forming volume is not less than 1.5 m 3 The column foot positioning steel plate 12 is embedded at the top of the large-diameter concrete body 111, and the fixing and pulling of the bottom column rod 2 are realized by the aid of multiple column foot bolts 13.

[0028] In actual application, the cantilever type multifunctional rod disclosed by the utility model at least achieves the following beneficial technical effects, specifically:

[0029] 1) the foundation 1 is designed in the form of a deep pile cast-in-place concrete foundation, and the depth of its deep ground and its forming volume are limited, so that the anti-pulling and bending moment capacity of the foundation 1 are effectively improved, avoiding the phenomenon of being pulled out of the soil layer or severely tilted when subjected to external force transmitted through the bottom column rod 2 in practical application;

[0030] 2) the column foot positioning steel plate 12 is embedded on the top of the large-diameter concrete body 111, and the column foot bolts 13 pass through the column foot positioning steel plate 12 and are rooted in the large-diameter concrete body 111, thereby effectively ensuring the stability of the fixed connection between the bottom column rod 2 and the foundation 1, and further providing a good foundation for improving the load capacity of the cantilever multi-functional rod;

[0031] It should also be noted that the plurality of cantilever beams 3 cooperate to load the hanging facilities 4, thereby facilitating the cantilever multi-functional rod to have good load capacity. Furthermore, under the premise that the weight of the hanging facilities 4 and its hanging position are clear, the generated lateral force is applied to different height positions of the bottom column rod 2, which is beneficial to reduce the bending moment of the bottom column rod 2, thereby reducing the probability of lateral bending of the bottom column rod 2 due to excessive bending moment.

[0032] It is known that the bonding strength between the column foot bolt 13 and the large-diameter concrete body 111 directly affects the stability of the assembled bottom column rod 2 relative to the foundation 1. In view of this, as a further optimization of the above technical solution, it is assumed that the height value of the large-diameter concrete body 111 is H. The column foot bolt 13 is used to fix the large-diameter concrete body 111 and the bottom column rod 2 as a whole, which crosses the column foot positioning steel plate 12 and has a length value L of not less than 4 / 5H.

[0033] Furthermore, in order to further improve the bonding strength between the column foot bolt 13 and the large-diameter concrete body 111 and avoid it from being pulled out of the large-diameter concrete body 111, as a further optimization of the above technical solution, as shown in Figure 3 , the column foot bolt 13 is subjected to bending treatment to form a 90° anti-tension bending section 121 near its lower end position.

[0034] Furthermore, as can be clearly seen from Figure 2 , the top of the foundation 1 is also formed with a concrete covering protection body 14. The concrete covering protection body 14 takes the top wall of the large-diameter concrete body 111 as a secondary pouring foundation, and is made of C20 plain concrete. The head of the column foot bolt 13 and its attached locking nut and gasket are hidden in the concrete covering protection body 14, thereby not only effectively avoiding the occurrence of the phenomenon of damaging the safety of pedestrians due to the exposure of the column foot bolt 13, but also eliminating the phenomenon of accelerated corrosion of the column foot bolt 13 due to being soaked in rainwater.

[0035] As shown in Figure 1 , the bottom column rod 2 is preferably a multi-ribbed metal rod with different diameters, and the outer diameter gradually decreases along the direction from bottom to top. In this way, on the one hand, compared with the traditional straight rod design structure, the multi-ribbed metal rod has a larger contact area with the foundation 1, thus having stability and not being easily inclined or shaken under external force, especially in bad weather conditions such as wind and rain; on the other hand, under the premise of certain structural strength and lateral bending strength, the weight is greatly reduced, which is beneficial to save production cost.

[0036] According to the actual application scene and the requirements of different municipal departments, the cross-sectional shape of the bottom column rod can be selected from quadrilateral, hexagon, octagon, dodecagon, etc.

[0037] Under the premise of ensuring that the cantilever beam 3 can be stably and firmly assembled, in order to reduce the difficulty of assembly and shorten the assembly time, as a further optimization of the above technical solution, as shown in Figure 1 , the cantilever beam 3 is preferably connected by flanges to realize assembly with the bottom column rod 2.

[0038] As shown in Figure 4 , the cantilever beam 3 is mainly composed of a support arm 31 and a connecting flange plate 32. The support arm 31 and the connecting flange plate 32 are fixed as a whole by welding, and the included angle α between them is greater than 90° but less than 110°. And the cantilever beam 3 is preferably a multi-ribbed metal profile, and the outer diameter gradually decreases along the direction away from the bottom column rod 2. In this way, in actual application, the cantilever beam 3 has excellent load capacity and lateral bending capacity, which is specifically manifested as: under the premise that the weight of the loaded hanging facility 4 and its hanging position are clear, the downward tilting amount of the cantilever beam 3 is controlled within a reasonable range.

[0039] As shown in Figure 1 , in some specific occasions, the cantilever type multifunctional rod suitable for soft geological layers also needs to be matched with a night lighting unit 5, thereby effectively ensuring the safety of pedestrians and driving in the dark or dimly lit environment. As shown in Figure 5 , the night lighting unit 5 mainly comprises a strip-shaped mounting groove plate 51 and a light-emitting body 52 (according to the different specific application scenes, the light-emitting body 52 is preferably selected as a light strip or a reflective strip). The strip-shaped mounting groove plate 51 is detachably fixed to the side wall of the bottom column rod 2 by means of screws, and its direction is consistent with the length direction of the bottom column rod 2. The light-emitting body 52 takes the strip-shaped mounting groove plate 51 as the sliding and mounting basis.

[0040] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cantilevered multi-functional pole suitable for soft geological layers, comprising a base, a bottom column pole, cantilevered beams and a hanging facility; the base serves as the mounting and bearing base of the bottom column pole; at least two cantilevered beams cooperate to load the hanging facility, and are detachably assembled with the bottom column pole; the hanging facility comprises large lane signs, large direction signs, traffic signal lights, public security monitoring equipment and traffic monitoring equipment, characterized in that, The foundation is a deep pile type cast-in-situ concrete foundation, which comprises a concrete body forming body, a column foot positioning steel plate and a column foot bolt; the concrete body forming body is solidified by drilling cast-in-situ concrete, and along the direction from top to bottom, it is sequentially combined by a large-diameter concrete body and a small-diameter concrete body; the small-diameter concrete body is continuously extended downward from the large-diameter concrete body, and the design length is not less than 1 m, and the forming volume is not less than 1.5 m 3 ; the column foot positioning steel plate is embedded at the top of the large-diameter concrete body, and the column foot bolt is used to fix and pull the bottom column rod.

2. The cantilevered multi-functional rod suitable for soft ground according to claim 1, wherein, The height of the large-diameter concrete body is H; the column foot bolt is used to fix the large-diameter concrete body and the bottom column rod as a whole, penetrates the column foot positioning steel plate, and the length L of the column foot bolt penetrating into the large-diameter concrete body is not less than 4 / 5H.

3. The cantilevered multi-functional rod suitable for soft ground according to claim 2, wherein, The lower end of the column foot bolt is subjected to bending treatment to form a tensile bending section.

4. The cantilevered multi-functional rod suitable for soft ground according to claim 1, wherein, The foundation further comprises a concrete covering protection body; the concrete covering protection body takes the top wall of the large-diameter concrete body as a secondary pouring foundation, and is made of C20 concrete.

5. The multi-functional jib for soft ground according to any one of claims 1 to 4, characterized in that, The bottom column rod is a multi-ribbed and differently-diametered metal rod, and the outer diameter gradually decreases along the direction from bottom to top.

6. The cantilevered multi-functional rod suitable for soft ground according to claim 5, wherein, The cross section of the bottom column rod is quadrilateral, hexagonal, octagonal or dodecagonal.

7. The multi-functional jib for soft ground according to any one of claims 1 to 4, wherein The cantilever beam is assembled with the bottom column rod in a flange connection mode; the cantilever beam comprises a support arm and a connecting flange plate; the support arm and the connecting flange plate are fixed as a whole in a welding mode, and the included angle α between them is greater than 90°.

8. The cantilevered multi-functional rod suitable for soft ground according to claim 7, wherein, The cantilever beam is a multi-ribbed and differently-diametered metal profile, and the outer diameter gradually decreases along the direction away from the bottom column rod.

9. The multi-functional jib for soft ground according to any one of claims 1 to 4, wherein The cantilevered multi-functional rod suitable for soft geological layers further comprises a night light unit; the night light unit comprises a strip-shaped installation groove plate and a light body; the strip-shaped installation groove plate is detachably fixed on the side wall of the bottom column rod, and the direction thereof is consistent with the length direction of the bottom column rod; the light body takes the strip-shaped installation groove plate as a sliding and installation foundation.

10. The cantilevered multi-functional rod suitable for soft ground according to claim 9, wherein, The light body is a light strip or a reflective strip.

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