CN219060138U - Assembled foundation protection cap for power transmission tower - Google Patents

Abstract

The utility model relates to an assembled foundation protection cap for a power transmission tower, which belongs to the technical field of power transmission line engineering and comprises a protection cap body, wherein the protection cap body comprises precast blocks which are arranged in one-to-one correspondence with all anchor bolts of the power transmission tower, the precast blocks are sleeved outside the anchor bolts, and an adhesive layer is adhered between any two adjacent precast blocks. The utility model can reduce the workload of on-site wet operation, shorten the construction period and accelerate the construction progress.

Description

Assembled foundation protection cap for power transmission tower

Technical Field

The utility model relates to an assembled foundation protection cap for a power transmission tower, and belongs to the technical field of power transmission line engineering.

Background

The exposed parts of the foundation bolts of the power transmission line tower foundation are required to be cast with concrete protective caps after the assembly of the tower is completed, and the effect of the concrete protective caps is to prevent the bolts from being corroded and artificially damaged. At present, the cast-in-situ foundation protective caps are cast in situ by adopting special templates, and the top surface of the cast-in-situ foundation protective caps is smeared into 3% -5% of micro-slope tops so as to meet the water scattering requirement. In addition, the protective cap is formed by casting once, the upper surface is firstly subjected to light harvesting for 3-4 times before solidification, is subjected to light harvesting for 2 times after casting is finished, is finely subjected to light harvesting for 1 time after 2 hours, and is ensured not to be damaged in surface and edge angles during die stripping. The construction process of the cast-in-situ foundation protective cap is not difficult, but the cast-in-situ foundation protective cap needs to be slowly manufactured to be thin and alive.

Because the transmission tower is located mountain region, hilly landform more, raw and other materials transportation is inconvenient, construction site and maintenance condition have the limitation, cause on-the-spot protection cap in pouring process, its concrete mix proportion standard and pouring quality are difficult to satisfy the design requirement, follow-up plastering, receipts light and maintenance are more difficult to ensure, and then will cause the protection cap durability poor, fill closely knit inadequately, lead to the ponding to exist in the protection cap, be difficult to discharge for shaft tower rag bolt and tower footplate are in dry and wet alternating state for the corrosion of rag board and rag bolt seriously influences transmission line's practical life, consequently, need to improve urgently.

Disclosure of Invention

In order to overcome the defects of inconvenient transportation of raw materials, complicated construction procedures, difficult guarantee of finished product quality and the like of the traditional concrete protective cap, the utility model designs the assembled foundation protective cap for the power transmission tower, which can reduce the workload of on-site wet operation, shorten the construction period and accelerate the construction progress.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides an assembled basic protection cap of steel pylons, includes the protection cap body, the protection cap body includes the prefabricated section that sets up with each rag bolt one-to-one of steel pylons, and the prefabricated section cover is established outside rag bolt, and the bonding has the adhesive linkage between arbitrary adjacent two prefabricated sections.

Further, a cylindrical groove is formed in the bottom surface of the precast block, the foundation bolt is inserted into the cylindrical groove, and the height of the cylindrical groove is larger than that of the foundation bolt.

Further, the bottom surface of the precast block is also provided with an L-shaped limiting protrusion.

Further, a drainage slope is arranged at the top end of the precast block.

Further, the bottom surface of the precast block is projected to be rectangular.

Compared with the prior art, the utility model has the following characteristics and beneficial effects:

1. prefabrication and application of precast blocks are beneficial to promoting design standardization of construction drawings and improving construction efficiency.

2. The prefabricated block is prefabricated by a factory, the manufacturing process and maintenance conditions are more stable, and the quality is better than that of a structural member manufactured in a rough-in-situ manner.

3. The construction precast blocks can be spliced to reduce the workload of on-site wet operation, shorten the construction period and accelerate the construction progress.

Drawings

FIG. 1 is a schematic diagram of a tower foot arrangement;

FIG. 2 is a schematic installation view of the present utility model;

FIG. 3 is a plan view showing the installation of the prefabricated section according to the present utility model;

fig. 4 is a schematic structural view of a prefabricated section three according to the present utility model.

Wherein the reference numerals are as follows: 1. a tower foot plate; 2. a boot plate; 3. angle steel main material; 4. angle steel inclined material; 5. a base main column; 6. an anchor bolt; 7. an annular gasket; 8. a protective cap body; 9. precast blocks; 91. precast block one; 92. a second precast block; 93. a prefabricated block III; 94. a prefabricated block IV; 10. l-shaped limit protrusions; 11. a cylindrical groove; 12. a drainage slope; 13. a joint; 14. a hexagonal bolt.

Detailed Description

The present utility model will be described in more detail with reference to examples.

Example 1

In this embodiment, a power transmission tower assembled foundation protection cap is applied to a tower foot structural arrangement as shown in fig. 1, an iron tower foot plate 1 and a shoe plate 2 are integrally connected through welding seams in a factory, the iron tower foot plate and the shoe plate are fixed with a foundation main column 5 through foundation bolts 6 on site, and an angle steel main material 3, an angle steel diagonal material 4 and the shoe plate 2 are connected through hexagonal bolts 14.

As shown in fig. 2 to 4, the assembled foundation protection cap for the power transmission tower of the embodiment comprises a protection cap body 8, wherein the protection cap body 8 comprises precast blocks 9 which are arranged in one-to-one correspondence with each foundation bolt 6 of the power transmission tower, the precast blocks 9 are sleeved outside the foundation bolts 6, and an adhesive layer is adhered to a joint 13 between any two adjacent precast blocks 9.

In this embodiment, the prefabricated blocks 9 are provided with four prefabricated blocks, namely, a first prefabricated block 91, a second prefabricated block 92, a third prefabricated block 93 and a fourth prefabricated block 94, respectively, the first prefabricated block 91, the second prefabricated block 92, the third prefabricated block 93 and the fourth prefabricated block 94 are respectively arranged between two adjacent boot plates 2, and the bonding layer is silicone weather-resistant glue.

Further, a cylindrical groove 11 is formed in the bottom surface of the precast block 9, the foundation bolt 6 is inserted into the cylindrical groove 11, and the height of the cylindrical groove 11 is larger than that of the foundation bolt 6.

As can be seen from the above description, the height of the cylindrical groove 11 is greater than that of the anchor bolt 6, so that the exposed portion of the anchor bolt 6 is fully covered, and corrosion, loosening and artificial damage of the anchor bolt 6 are effectively prevented.

In particular, the diameter of the cylindrical groove 11 is larger than that of the foundation bolt 6, so that the annular gasket 7 on the foundation bolt 6 is conveniently sleeved into the cylindrical groove 11, and the protection effect is better.

Further, the bottom surface of the precast block 9 is also provided with an L-shaped limit protrusion 10.

As can be seen from the above description, the L-shaped limiting protrusion 10 is used to engage with the tower foot plate 1 to prevent the precast block 9 from deviating.

Further, the top end of the precast block 9 is provided with a 3% -5% drainage slope 12.

Further, the bottom surface of the prefabricated section 9 is projected as a rectangle.

In this embodiment, the thickness of concrete between the top surface of the precast block 9 and the top end of the cylindrical groove 11 is not less than 50mm, the height of the precast block 9 exceeds the exposed height of the foundation bolt 6 by 50mm, the height of the L-shaped limiting boss 10 on the bottom surface of the precast block 9 is equal to the thickness of the tower foot plate 1, the width of the L-shaped limiting boss 10 is 50mm, and the side length of the precast block 9 is not less than 50mm when each side of the outer side of the tower foot plate 1 is increased.

The working principle of the utility model is as follows: the concrete engineering is to complete the design and manufacture of the shaping mould of each precast block 9 according to the tower type condition of the power transmission iron tower, the size of the tower foot plate 1, the distribution positions of the foundation bolts 6 and the boot plates 2, then perform the casting of the precast blocks 9, and adopt steam curing to ensure that the precast blocks 9 have no micro cracking phenomenon, reliable quality and attractive process after field installation and joint filling.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims (5)

1. The utility model provides a transmission tower assembled basis protective cap which characterized in that: including protection cap body (8), protection cap body (8) include with each rag bolt (6) one-to-one setting of iron tower prefabricated section (9), prefabricated section (9) cover is established outside rag bolt (6), and the bonding has the adhesive linkage between arbitrary adjacent two prefabricated sections (9).

2. The pylon assembled foundation protection cap of claim 1 wherein: a cylindrical groove (11) is formed in the bottom surface of the precast block (9), the foundation bolt (6) is inserted into the cylindrical groove (11), and the height of the cylindrical groove (11) is larger than that of the foundation bolt (6).

3. The pylon assembled foundation protection cap of claim 2 wherein: the bottom surface of the precast block (9) is also provided with an L-shaped limiting bulge (10).

4. The pylon assembled foundation protection cap of claim 1 wherein: a drainage slope (12) is arranged at the top end of the precast block (9).

5. The pylon assembled foundation protection cap of claim 1 wherein: the bottom surface projection of prefabricated section (9) is the rectangle.

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