Flange plate connecting assembly of embedded bolt and prestressed concrete pole assembly

Abstract

The utility model relates to the technical field of prestressed concrete electric poles, in particular to a flange plate connecting assembly of an embedded bolt and a prestressed concrete electric pole assembly. A first flange and a second flange; the first flange plate comprises an annular plate and a plurality of bolts, a plurality of first through holes are formed in the surface of the annular plate, and the bolts penetrate through the first through holes; the second flange plate comprises a neck ring, an upper annular plate and a lower annular plate, the top end of the neck ring is sleeved with the upper annular plate, a plurality of second through holes are formed in the surface of the upper annular plate, the bottom end of the neck ring is sleeved with the lower annular plate, and the bolts are used for being matched with the second through holes so that the first flange plate can be connected with the second flange plate. Compared with the prior art, the flange plate is simple in structure, the field assembly construction efficiency of the annular prestressed concrete flange electric pole is improved, and the manufacturing cost of the flange plate is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed concrete poles, in particular to a flange connection component of embedded bolts and a prestressed concrete pole component. Background Art

[0002] With the transformation of rural power grids and the construction of mobile communications in my country, the production and application of annular concrete poles have developed rapidly. There are two types of concrete poles: ordinary reinforced concrete poles and prestressed concrete poles. The manufacturing process of annular prestressed concrete poles is mainly to longitudinally tension the steel wire skeleton in the steel mold, and then squeeze out the excess water under the action of centrifugal force, thereby greatly improving the density and strength of the concrete. In order to enable the concrete to reach more than 70% of the design strength more quickly, steam curing can be carried out to shorten the demoulding cycle. The use of prestressed concrete poles saves steel compared to ordinary reinforced concrete poles, and can also improve crack resistance and service life. There are two types of annular poles: tapered poles and equal-diameter poles. The tip diameter of the tapered pole is generally 150-510 mm, and the taper is 1:75; the diameter of the equal-diameter pole is 300-550 mm; the wall thickness of both is 40-80 mm. The length of concrete poles is generally 6 to 21 meters. Since the poles are mostly erected in the wild and the road transportation conditions are limited, poles longer than 12 meters are mostly transported in sections and then assembled into a complete pole at the installation site using flanges or welding.

[0003] At present, when annular prestressed concrete flange poles are assembled on site, each bolt hole needs to be accurately aligned and then fastened with high-strength bolts. The pole docking requires a high level of technical skills from the workers, takes a long time, and has low construction efficiency, which affects the construction progress of the power line.

[0004] The two flanges in the conventional flange assembly for connecting segmented poles are formed as a whole by welding inner and outer end plates through collars and stiffening plates. The structure is relatively complex and more steel plate materials are used, resulting in high costs.

[0005] Based on this, the utility model provides a flange connection assembly with embedded bolts and a prestressed concrete pole assembly to overcome the defects in the prior art. Utility Model Content

[0006] The purpose of the utility model is to provide a flange connection assembly of embedded bolts and a prestressed concrete pole assembly. The flange connection assembly of embedded bolts has a simple structure, which improves the on-site assembly construction efficiency of the annular prestressed concrete flange pole and saves the cost of the flange.

[0007] In order to achieve the above-mentioned object, the utility model provides a flange connection assembly with embedded bolts, which comprises a first flange and a second flange;

[0008] The first flange includes a ring plate and a plurality of bolts, the surface of the ring plate is provided with a plurality of first through holes; the plurality of bolts correspond to the plurality of first through holes one by one, and the bolts are arranged through the first through holes;

[0009] The second flange comprises a collar, an upper ring plate and a lower ring plate, the top end of the collar is sleeved with the upper ring plate, the upper ring plate is fixedly connected to the collar, a plurality of second through holes are provided on the surface of the upper ring plate, and the second through holes correspond to the bolt positions of the first flange in a one-to-one manner; the bottom end of the collar is sleeved with the lower ring plate, and the lower ring plate is fixedly connected to the collar;

[0010] The bolt is used to connect the first flange and the second flange by cooperating with the second through hole.

[0011] Furthermore, a plurality of rib holes are provided on the surface of the ring plate, and the plurality of rib holes and the plurality of first through holes are distributed at intervals along the circumferential direction of the ring plate.

[0012] Furthermore, the bolts are fixed to the ring plate by welding.

[0013] Furthermore, the second flange further comprises:

[0014] A plurality of reinforcing rib plates are arranged between the upper ring plate and the lower ring plate, and the plurality of reinforcing rib plates are in contact with the outer wall surface of the collar.

[0015] Furthermore, a plurality of third through holes are provided on the surface of the lower ring plate.

[0016] Furthermore, the third through holes are evenly distributed along the circumferential direction of the lower ring plate.

[0017] Furthermore, the lower ring plate also includes:

[0018] A plurality of pier head rings are arranged on the surface of the lower ring plate, and the positions of the pier head rings correspond to the positions of the third through holes one by one, so as to realize the communication between the through holes of the pier head rings and the third through holes.

[0019] Furthermore, the collar and the upper ring plate, and the collar and the lower ring plate are fixed by welding.

[0020] The utility model has the following beneficial effects:

[0021] The utility model provides a flange connection assembly with embedded bolts, which is provided with a first flange and a second flange. The first flange includes a ring plate and a plurality of bolts. The surface of the ring plate is provided with a plurality of first through holes. The plurality of bolts correspond to the plurality of first through holes one by one, and the bolts are arranged to penetrate the first through holes. The bolts are used to connect the first flange and the second flange by cooperating with the second through holes. The two flanges in the conventional flange assembly for connecting segmented poles are formed as a whole by welding the inner and outer end plates through the collar and the stiffening plate, and the consumables of the two flanges of the same material are large. The utility model can make the first flange structure simpler than the conventional flange structure, reduce consumables, improve the assembly efficiency of the annular prestressed concrete flange pole, and save the cost of the flange.

[0022] Another object of the present utility model is to provide a prestressed concrete pole assembly, comprising a first concrete pole, a second concrete pole and a flange connection assembly, wherein the first concrete pole and the second concrete pole are connected via the flange connection assembly, and the flange connection assembly is the above-mentioned flange connection assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 or the description of the prior art 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.

[0024] Figure 1 This is a schematic diagram of the first flange structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the second flange structure of the utility model;

[0026] Figure 3 It is a cross-sectional schematic diagram of a flange connection assembly with embedded bolts of the utility model;

[0027] In the figure: a first flange 1, a ring plate 101, a bolt 102, a first through hole 103, and a reinforcement hole 104; a second flange 2, a collar 201, an upper ring plate 202, a lower ring plate 203, a second through hole 204, a reinforcing rib plate 205, a third through hole 206, and a pier head ring 207; a steel pier head 3; a prestressed tendon 4; and a concrete pole 5. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in 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 belong to the protection scope of the utility model.

[0029] The following is combined with Figures 1 to 3 And specific embodiments describe the utility model in detail:

[0030] like Figures 1 to 3 As shown, the utility model provides a flange connection assembly with embedded bolts, a first flange 1 and a second flange 2;

[0031] The first flange 1 includes a ring plate 101 and a plurality of bolts 102. The surface of the ring plate 101 is provided with a plurality of first through holes 103. The plurality of bolts 102 correspond to the plurality of first through holes 103 one by one, and the bolts 102 are arranged to penetrate the first through holes 103, and a welding seam is performed between the bolts 102 and the first through holes 103. The second flange 2 includes a collar 201. The collar 201 is a hollow cylindrical structure, an upper ring plate 202 and a lower ring plate 203. The top end of the collar 201 is sleeved with the upper ring plate 202, and the upper ring plate 202 is fixedly connected to the collar 201. The surface of the upper ring plate 202 is provided with a plurality of second through holes 204, and the second through holes 204 correspond to the positions of the bolts 102 of the first flange 1 one by one. The bottom end of the collar 201 is sleeved with the lower ring plate 203, and the lower ring plate 203 is fixedly connected to the collar 201.

[0032] The bolt 102 is used to connect the first flange 1 and the second flange 2 by cooperating with the second through hole 204. After the first flange 1 and the second flange 2 are connected, the bolt 102 is locked and fixed using a locking nut.

[0033] In summary, it can be seen that the flange connection assembly of the embedded bolts has a simple structure. The first flange 1 and the second flange 2 are connected to facilitate the assembly of the annular prestressed concrete flange pole, thereby improving the assembly efficiency. In the prior art, two flanges of the same shape are combined to connect the annular prestressed concrete flange pole into one, and the flange cost is high. The first flange 1 and the second flange 2 of the utility model are different shapes. The first flange 1 is simpler in structure than the second flange 2, and the consumables are reduced, which greatly saves the flange cost.

[0034] Furthermore, a plurality of reinforcement holes 104 are provided on the surface of the ring plate 101. The plurality of reinforcement holes 104 and the plurality of first through holes 103 are spaced apart along the circumferential direction of the ring plate 101. The reinforcement holes 104 are used to connect with the prestressed main reinforcement.

[0035] Furthermore, the bolts 102 are fixed to the ring plate 101 by welding, and the bolts 102 pass through the first through holes 103 and out of the ring plate 101 .

[0036] Furthermore, the second flange 2 further includes: a plurality of reinforcing ribs 205, which are arranged between the upper ring plate 202 and the lower ring plate 203, and the plurality of reinforcing ribs 205 are in contact with the outer wall surface of the collar 201. The reinforcing ribs 205 are a metal plate used to strengthen the connection structure, and their functions are mainly as follows:

[0037] 1. Increase the connection strength: The reinforcing rib plate 205 can increase the connection strength between the pole and the flange, so that it can withstand greater force. During the installation of the pole, the pole needs to withstand external forces such as wind and gravity, and the addition of the reinforcing rib plate 205 can effectively increase the stability and strength of the connection and prevent the connection from loosening or breaking.

[0038] 2. Load dispersion: The rib plate 205 can disperse the load of the connection part to a larger area, reduce the concentration of local stress, and thus improve the bearing capacity of the connection. By increasing the connection area, the rib plate 205 can evenly transfer the force to the flange and the pole, avoiding damage caused by excessive local stress.

[0039] 3. Improved stability: The reinforcing rib plate 205 can increase the stability of the connection part and prevent the pole from shaking or tilting under the action of external forces such as wind. By strengthening the connection structure, the reinforcing rib plate 205 can effectively improve the stability of the pole and ensure the normal use and safety of the pole.

[0040] 4. Convenient maintenance: The addition of the reinforcing rib plate 205 can facilitate maintenance personnel to inspect and maintain the connection parts. When the pole needs to be replaced or repaired, the reinforcing rib plate 205 can provide a stable connection point, which is convenient for maintenance personnel to operate and reduce the difficulty and risk of maintenance.

[0041] Furthermore, a plurality of third through holes 206 are provided on the surface of the lower ring plate 203 .

[0042] Furthermore, the third through holes 206 are evenly distributed along the circumferential direction of the lower ring plate 203 .

[0043] Furthermore, the lower ring plate 203 also includes: a plurality of pier head rings 207, which are arranged on the surface of the lower ring plate 203, and the positions of the pier head rings 207 correspond one-to-one to the positions of the third through holes 206, so as to achieve communication between the through holes of the pier head rings 207 and the third through holes 206.

[0044] After the prestressed tendons 4 in the concrete pole 5 are connected to the third through hole 206 of the lower ring plate 203, the corresponding pier head ring 207 is installed at the third through hole 206 of the lower ring plate 203 to form a space for hiding the steel pier head 3, thereby significantly reducing the thickness of the lower ring plate 203. At this time, the pier head ring 207 is higher than the pier head end, and the inside of the pier head ring 207 is filled with anti-corrosion paint, so that the pier head end is isolated from the air, so that the steel pier head 3 is well protected and prevented from being corroded by rainwater.

[0045] Furthermore, the collar 201 and the upper ring plate 202 as well as the collar 201 and the lower ring plate 203 are welded and fixed, and the connection method is simple and reliable.

[0046] The utility model further provides a prestressed concrete pole assembly based on the above-mentioned flange connection assembly, which includes a first concrete pole, a second concrete pole and a flange connection assembly, wherein the first concrete pole and the second concrete pole are connected via the flange connection assembly, and the flange connection assembly is the above-mentioned flange connection assembly, wherein the first concrete pole and the first flange 1 are first welded, and the second concrete pole and the second flange 2 are welded, and finally, at the construction site, the first concrete pole and the second concrete pole are connected, the first flange 1 and the second flange 2 are connected by holes, and then the connected first flange and second flange are fixed with nuts, thereby improving the assembly efficiency of the annular prestressed concrete flange pole, and therefore, the prestressed concrete pole assembly has all the advantages of the above-mentioned flange connection assembly with embedded bolts, which will not be described in detail here.

[0047] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A flange connection assembly with embedded bolts, characterized in that: It includes: a first flange and a second flange; The first flange includes a ring plate and a plurality of bolts, the surface of the ring plate is provided with a plurality of first through holes; the plurality of bolts correspond to the plurality of first through holes one by one, and the bolts are arranged through the first through holes; The second flange comprises a collar, an upper ring plate and a lower ring plate, the top end of the collar is sleeved with the upper ring plate, the upper ring plate is fixedly connected to the collar, a plurality of second through holes are provided on the surface of the upper ring plate, and the second through holes correspond to the bolt positions of the first flange in a one-to-one manner; the bottom end of the collar is sleeved with the lower ring plate, and the lower ring plate is fixedly connected to the collar; The bolt is used to connect the first flange and the second flange by cooperating with the second through hole.

2. A flange connection assembly with embedded bolts according to claim 1, characterized in that: The surface of the ring plate is also provided with a plurality of rib holes, and the plurality of rib holes and the plurality of first through holes are distributed at intervals along the circumferential direction of the ring plate.

3. The flange connection assembly with embedded bolts according to claim 1, characterized in that: The bolts are fixed to the ring plate by welding.

4. The flange connection assembly with embedded bolts according to claim 1, characterized in that: The second flange further comprises: A plurality of reinforcing rib plates are arranged between the upper ring plate and the lower ring plate, and the plurality of reinforcing rib plates are in contact with the outer wall surface of the collar.

5. A flange connection assembly with embedded bolts according to claim 4, characterized in that: A plurality of third through holes are arranged on the surface of the lower ring plate.

6. A flange connection assembly with embedded bolts according to claim 5, characterized in that: The third through holes are evenly distributed along the circumferential direction of the lower ring plate.

7. A flange connection assembly with embedded bolts according to claim 6, characterized in that: The lower ring plate also includes: A plurality of pier head rings are arranged on the surface of the lower ring plate, and the positions of the pier head rings correspond to the positions of the third through holes one by one, so as to realize the communication between the through holes of the pier head rings and the third through holes.

8. The flange connection assembly with embedded bolts according to claim 1, characterized in that: The collar and the upper ring plate, as well as the collar and the lower ring plate, are welded and fixed.

9. A prestressed concrete pole assembly, characterized in that: It comprises a first concrete pole, a second concrete pole and a flange connection assembly, wherein the first concrete pole and the second concrete pole are connected via the flange connection assembly, and the flange connection assembly is the flange connection assembly according to any one of claims 1 to 8.

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