Reinforced cement-bonded pole interior frame

Abstract

The utility model discloses a kind of electric pole internal frames of enhancing cement adhesion, it is related to cement concrete electric pole technical field, for solving the problem of insufficient cement adhesion of traditional frame.Its core structure includes the prismatic side metal net component of adapting electric pole circular table appearance, layered interval arrangement's support rod, stainless steel annular muscle and several longitudinal muscles.Circular muscle diameter is consistent with circular table bus slope along from top to bottom direction, connect by support rod and metal net, longitudinal muscle penetrates and fixes all annular muscle to form complete stress frame.Metal net porous structure makes cement permeation form mechanical occlusion, greatly increase contact area, improve adhesion firmness, while three-dimensional structure enhances electric pole crack resistance and bearing capacity, adapts existing pouring process, anticorrosive performance is excellent, prolongs service life.

Description

Technical Field

[0001] This utility model relates to the field of cement concrete utility pole technology, and in particular to an internal frame for utility poles that enhances cement bonding strength. Background Technology

[0002] Cement concrete utility poles are widely used in power transmission, communication signal installation, and other fields due to their advantages such as high strength, low cost, and long service life. Most existing utility poles have a frustum-shaped structure, wider at the bottom than the top, and typically contain a steel frame composed of ring-shaped and longitudinal reinforcing bars to enhance the overall structural strength and crack resistance of the pole.

[0003] However, traditional internal frames have the following defects: the ring bars and longitudinal bars are mostly grid structures formed by welding steel bars, and the contact with cement is mainly line contact and point contact, with a limited contact area, resulting in insufficient bonding between cement and frame; during long-term use, affected by environmental vibration, temperature changes, rainwater erosion and other factors, cement and frame are prone to peeling and hollowing, which in turn causes the utility pole to crack and reduce its strength, seriously affecting the safety and service life.

[0004] Therefore, there is a need for an internal frame for utility poles that can increase the contact area with cement, improve the bonding strength, and ensure structural stability, thus solving the technical pain point of poor bonding of traditional frames. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model proposes an internal frame for utility poles that enhances cement bonding strength.

[0006] This utility model proposes an internal frame for utility poles that enhances cement bonding strength, comprising:

[0007] A frustum-shaped side metal mesh assembly adapted to the truncated cone shape of a utility pole. The side metal mesh assembly is formed by multiple planar side metal meshes. The upper end of each side metal mesh corresponds to the vertex of the inscribed polygon of the small circle at the top of the utility pole, and the lower end corresponds to the vertex of the inscribed polygon of the large circle at the bottom of the utility pole. All the side metal meshes together form a frustum shape that is smaller at the top and larger at the bottom, without a closed structure at the top or bottom. Each side metal mesh is a porous mesh structure.

[0008] Multiple sets of support rods are arranged at intervals on the outer side wall of each side metal mesh. All support rods at the same height layer are evenly distributed in the circumferential direction, and the end of each support rod away from the side metal mesh is fixedly connected to a ring rib. The diameter of the ring rib gradually increases from top to bottom in sync with the taper of the truncated cone of the utility pole.

[0009] Multiple longitudinal ribs extending vertically are evenly distributed around the circumference of the annular ribs, and each longitudinal rib penetrates and fixes the annular ribs of all height layers to form a complete load-bearing frame.

[0010] Preferably, the frustum-shaped side metal mesh assembly has 6 enclosing sides, corresponding to 6 side metal meshes, and the inscribed polygon is a regular hexagon.

[0011] Preferably, the support rods at the same height layer are perpendicular to the outer surface of the corresponding side metal mesh, and the axis of the support rods is centered along the width direction of the side metal mesh.

[0012] Preferably, the annular rib is a stainless steel ring, and the gradient of the diameter of the annular rib is consistent with the slope of the generatrix of the truncated cone of the utility pole.

[0013] Preferably, the number of longitudinal ribs is 6-12, and the longitudinal ribs are welded and fixed to the outer or inner sidewall of the annular ribs.

[0014] Preferably, the sides of two adjacent side metal meshes are fixed by welding, bolting, or snap-fitting to form a closed frustum side enclosure structure.

[0015] The internal frame for utility poles that enhances cement adhesion proposed in this invention has the following beneficial effects:

[0016] The bonding strength is significantly improved. The side metal mesh adopts a porous mesh structure, which forms a surface contact with the cement. The cement can penetrate into the mesh to form a "mechanical interlock". Compared with the line contact / point contact of traditional steel frame, the contact area is increased and the bonding strength is greatly improved, effectively preventing the cement from peeling off from the frame and hollowing.

[0017] With strong structural stability, it forms a three-dimensional force-bearing system through the combination of "frustum-shaped metal mesh components + layered support rods + ring ribs + longitudinal ribs". This system not only adapts to the frustum shape of the utility pole, but also disperses the force, improving the overall crack resistance and load-bearing capacity of the utility pole.

[0018] The diameter of the ring reinforcement gradually changes slope, which is consistent with the slope of the generatrix of the truncated cone of the utility pole. The metal mesh assembly is a regular hexagonal truncated cone structure, which can precisely fit the inner wall of the utility pole without changing the existing utility pole casting process, making production and implementation convenient.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the frustum-shaped side metal mesh assembly of this utility model;

[0021] Figure 2 This is a partial structural schematic diagram of the present invention;

[0022] Figure 3 This is a partial front view of the present invention;

[0023] The labels in the diagram are as follows: 1. Side metal mesh; 2. Support rod; 3. Circular rib; 4. Longitudinal rib. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] like Figures 1-3 The internal frame of a utility pole designed to enhance cement adhesion includes a frustum-shaped side metal mesh assembly 1, a support pole 2, annular reinforcing bars 3, and longitudinal reinforcing bars 4, with the specific structure as follows:

[0026] Frustum-shaped side metal mesh assembly: Adapted to the frustum shape of utility poles, it is formed by six planar side metal meshes 1. The upper end of each side metal mesh 1 corresponds to the vertex of the inscribed regular hexagon of the small circle at the top of the utility pole, and the lower end corresponds to the vertex of the inscribed regular hexagon of the large circle at the bottom of the utility pole. All the side metal meshes 1 together form a frustum shape that is smaller at the top and larger at the bottom, without a closed structure at the top or bottom. Each side metal mesh 1 is a porous mesh structure, which allows cement to penetrate into the mesh to form a mechanical interlocking and increase the bonding area.

[0027] Support rods 2: are arranged in layers on the outer side wall of each side metal mesh 1. The support rods 2 of the same height layer are evenly distributed circumferentially, with 2 support rods 2 corresponding to each side metal mesh 1, and a total of 12 support rods 2 of the same height layer. All support rods 2 of the same height layer are fixedly connected to a ring rib 3 at the end away from the side metal mesh 1. The support rods 2 are perpendicular to the outer surface of the corresponding side metal mesh 1, and the axis of the support rods 2 is centered along the width direction of the side metal mesh 1 to ensure balanced force.

[0028] Circular rib 3: Made of stainless steel ring, its diameter is consistent with the slope of the generatrix of the truncated cone of the utility pole from top to bottom, so as to achieve a precise fit with the shape of the truncated cone of the utility pole; circular rib 3 is connected to the side metal mesh 1 through the support rod 2 to form a layered support structure.

[0029] Longitudinal ribs 4: There are 6-12 longitudinal ribs, which are evenly distributed along the circumference of the ring ribs 3. Each longitudinal rib 4 penetrates and is fixedly connected to the ring ribs 3 of all height layers. The longitudinal ribs 4 are welded and fixed to the outer or inner side wall of the ring ribs 3 to form a complete load-bearing frame and improve the overall structural stability.

[0030] Connection method: The sides of two adjacent metal mesh 1 are fixed by welding, bolting or snap-fit ​​connection to form a closed frustum side structure to ensure the integrity of the metal mesh assembly.

[0031] Example 1

[0032] An internal frame for utility poles that enhances cement adhesion has the following specific structure:

[0033] Frustum-shaped side metal mesh assembly: It consists of 6 planar side metal meshes 1 enclosing a regular hexagonal frustum structure without a top or bottom closed structure; the mesh openings of the side metal mesh 1 are regular hexagonal, the inscribed circle diameter of the mesh opening is 8mm, and the wire diameter of the metal mesh is 2mm; the sides of adjacent side metal meshes 1 are fixed by welding to form a closed frustum side enclosure.

[0034] Support rod 2: Made of round steel, 12cm in length; layered along the outer wall of the side metal mesh 1, with an axial spacing of 50cm between adjacent layers of support rod 2; 6 support rods 2 at the same height layer are evenly distributed circumferentially, one end of each support rod 2 is welded and fixed to the side metal mesh 1, and the support rod 2 is perpendicular to the outer surface of the side metal mesh 1, with its axis centered along the width direction of the side metal mesh 1.

[0035] Circular rib 3: A ring made of 304 stainless steel, the diameter of which gradually changes from top to bottom with the slope of the truncated cone of the utility pole (for example, the diameter of the small circle at the top of the utility pole is 30cm, the diameter of the large circle at the bottom is 50cm, and the height is 10m, the diameter of the circular rib 3 gradually changes from 32cm to 52cm); the end of the 6 support poles 2 at the same height layer away from the side metal mesh 1 is welded and fixed to the circular rib 3.

[0036] Longitudinal reinforcement 4: There are 8 longitudinal reinforcements, made of threaded steel, and evenly distributed around the circumference of the ring reinforcement 3; the longitudinal reinforcement 4 is welded and fixed to the outer wall of the ring reinforcement 3, and the longitudinal reinforcement 4 penetrates the ring reinforcement 3 in all height layers in the vertical direction to form a complete load-bearing frame.

[0037] Example 2

[0038] The difference between this embodiment and embodiment 1 is that the sides of the adjacent side metal mesh 1 are fixed by bolts; there are 6 longitudinal ribs 4, which are welded and fixed to the inner side wall of the annular rib 3; the length of the support rod 2 is 10cm, and the axial distance between two adjacent support rods 2 is 60cm. The rest of the structure is the same as that of embodiment 1.

[0039] Example 3

[0040] The difference between this embodiment and embodiment 1 is that the sides of the adjacent side metal mesh 1 are fixed by snap fasteners; there are 12 longitudinal ribs 4, which are welded and fixed to the outer side wall of the annular rib 3; the length of the support rod 2 is 15cm, and the axial distance between two adjacent support rods 2 is 40cm. The rest of the structure is the same as that of embodiment 1.

[0041] When in use, the internal frame of this utility model is directly placed into the casting mold of the utility pole. When pouring cement concrete, the cement can penetrate into the mesh of the side metal mesh 1 and form a tight mechanical bond with the metal mesh. At the same time, through the supporting action of the support rod 2, the annular rib 3, and the longitudinal rib 4, the overall strength and crack resistance of the utility pole are improved, effectively solving the problem of poor bonding of traditional frames.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An internal frame for a utility pole that enhances cement bonding strength, characterized in that, include: A frustum-shaped side metal mesh (1) assembly adapted to the frustum shape of a utility pole. The side metal mesh (1) assembly is formed by multiple planar side metal meshes (1). The upper end of each side metal mesh (1) corresponds to the vertex of the inscribed polygon of the small circle at the top of the utility pole, and the lower end corresponds to the vertex of the inscribed polygon of the large circle at the bottom of the utility pole. All the side metal meshes (1) together form a frustum shape that is smaller at the top and larger at the bottom, without a top closed structure and a bottom closed structure. Each side metal mesh (1) is a porous mesh structure. Multiple sets of support rods (2) are arranged at intervals on the outer side wall of each side metal mesh (1). All support rods (2) at the same height layer are evenly distributed in the circumferential direction, and the end of each support rod (2) away from the side metal mesh (1) is fixedly connected to a ring rib (3). The diameter of the ring rib (3) gradually increases in sync with the taper of the truncated cone of the utility pole in the direction from top to bottom. Multiple longitudinal ribs (4) extending vertically are evenly arranged around the annular ribs (3), and each longitudinal rib (4) penetrates and is fixedly connected to the annular ribs (3) of all height layers to form a complete load-bearing frame.

2. The internal frame of the utility pole for enhancing cement bonding strength according to claim 1, characterized in that, The frustum-shaped side metal mesh (1) assembly has 6 enclosing sides, corresponding to 6 side metal meshes (1), and the inscribed polygon is a regular hexagon.

3. The internal frame of the utility pole for enhancing cement bonding strength according to claim 1, characterized in that, The support rod (2) of the same height layer is perpendicular to the outer surface of the corresponding side metal mesh (1), and the axis of the support rod (2) is centered along the width direction of the side metal mesh (1).

4. The internal frame of the utility pole for enhancing cement bonding strength according to claim 1, characterized in that, The annular rib (3) is a stainless steel ring, and the gradient of the diameter of the annular rib (3) is consistent with the gradient of the generatrix of the truncated cone of the utility pole.

5. The internal frame of the utility pole for enhancing cement bonding strength according to claim 1, characterized in that, The number of longitudinal ribs (4) is 6-12, and the longitudinal ribs (4) are welded and fixed to the outer or inner sidewall of the annular ribs (3).

6. The internal frame of the utility pole for enhancing cement bonding strength according to claim 1, characterized in that, The sides of two adjacent side metal meshes (1) are fixed by welding, bolting or snap-fitting to form a closed frustum side structure.

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