A general-purpose formwork frame for casting protective caps for power transmission line foundations

Abstract

This utility model proposes a universal formwork frame for casting protective caps for transmission line foundations. Its features include a first frame and a second frame that are spliced ​​together. The first frame comprises a first frame plate and a second frame plate connected vertically, each with multiple vertically arranged, downward-facing toothed grooves. The second frame comprises a third frame plate and a fourth frame plate connected vertically, each with a transverse groove for engaging with the toothed grooves. After the toothed grooves and transverse grooves engage, the first and second frames together enclose a casting area. This utility model can effectively adapt to various angle steel tower foundations. By adjusting the frame to the tower foot plate dimensions, it forms a standard protective cap outline, facilitating the casting of protective caps that meet specifications. It has advantages such as high adaptability, simple structure, convenient construction, and good casting effect, achieving significant economic and social benefits.

Description

Technical Field

[0001] This utility model relates to a universal template frame for casting protective caps for power transmission line foundations. Background Technology

[0002] The protective cap for transmission line foundations is an important protective measure for transmission line foundations. Specific requirements exist regarding the size of the protective cap. The "Design Code for Overhead Transmission Line Foundations" (DL / T5219-2020) 15.6.1 states: the side length or diameter of the protective cap should be at least 50mm longer than the outer side of the tower foot plate on each side, and the height should exceed the exposed height of the anchor bolts by 50mm-100mm, and not less than 300mm. To cast the protective cap, current technology often uses wooden formwork to be fabricated and reinforced on-site before casting. The disadvantages of this technology are: because the foot plate dimensions vary for each type of tower, the size of the foundation protective cap varies, resulting in low formwork adaptation efficiency, inconvenient on-site processing and installation, high labor costs, low operability, and inconsistent casting results. Utility Model Content

[0003] To address the problems of low adaptability, inconvenient processing and installation, and inconsistent casting results of protective cap templates, this utility model proposes a universal casting template frame for transmission line foundation protective caps. It is adaptable to various single-angle steel tower foundations and features a simple structure and convenient construction. Specifically, this is achieved through the following technical means: A universal formwork frame for pouring concrete for a protective cap on a transmission line foundation includes: a first frame and a second frame spliced ​​together; wherein: the first frame includes a first frame plate and a second frame plate connected vertically, and the first frame plate and the second frame plate are respectively provided with a plurality of vertically arranged grooves with downward-facing slots; the second frame includes a third frame plate and a fourth frame plate connected vertically, and the third frame plate and the fourth frame plate are respectively provided with transverse grooves for the grooves to engage, the transverse grooves being located at the top edges of the third frame plate and the fourth frame plate; after the grooves engage with the transverse grooves, the first frame and the second frame are enclosed together to form a pouring area.

[0004] Preferably, the heights from the top edge to the bottom edge of the first frame plate, the second frame plate, the third frame plate, and the fourth frame plate are equal, and the groove depth of the tooth groove is equal to the distance from the bottom of the transverse groove to the bottom edge of the frame plate, so that the top edges of the first frame and the second frame are level after splicing.

[0005] Preferably, the width of the toothed groove is equal to the thickness of the third frame plate and the fourth frame plate, so that the toothed groove and the transverse groove are engaged to restrict the displacement of the first frame plate and the second frame plate.

[0006] Preferably, the third frame plate and the fourth frame plate are each provided with a pair of limiting pins. After the limiting pins are engaged with the toothed groove and the transverse groove, they are respectively installed on both sides of the first frame plate and the second frame plate to restrict their displacement.

[0007] Preferably, the limiting pin includes two vertical plates and a top plate connecting the two vertical plates, thereby forming a clamping groove between the two vertical plates. During installation, the limiting pin is flipped onto a third or fourth frame plate, causing the third or fourth frame plate to be clamped in the clamping groove.

[0008] Preferably, the vertical height of the limiting pin is equal to the height between the top edge and the bottom edge of the third or fourth frame plate, thereby completing the height from the bottom of the transverse groove to the bottom top edge of the frame plate after installation.

[0009] Preferably, the transverse groove is formed inward from the ends of the third and fourth frame plates along the length of the plate.

[0010] Compared with the prior art, the advantages of this utility model are: it can effectively adapt to various angle steel tower foundations, and the frame can adjust itself according to the size of the tower foot plate to form a standard protective cap outline, which is convenient to cast a protective cap that meets the specifications. It has the advantages of high adaptability, simple structure, convenient construction and good casting effect, and can achieve good economic and social benefits. Attached Figure Description

[0011] Figure 1 A schematic diagram of the spliced ​​structure of the formwork frame for casting.

[0012] Figure 2 A schematic diagram of the disassembled structure of the casting formwork frame.

[0013] Figure 3 This is a three-dimensional structural diagram of the limit pin.

[0014] Figure 4 This is a structural schematic diagram of the formwork frame from a side view. Detailed Implementation

[0015] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution: See appendix Figures 1 to 4A universal formwork frame for casting a protective cap for a transmission line foundation includes: a first frame 1 and a second frame 2 spliced ​​together; wherein: the first frame 1 includes a first frame plate 11 and a second frame plate 12 vertically connected, and the first frame plate 11 and the second frame plate 12 are respectively provided with a plurality of vertically arranged, downward-facing toothed grooves 10; the second frame 2 includes a third frame plate 21 and a fourth frame plate 22 vertically connected, and the third frame plate 21 and the fourth frame plate 22 are respectively provided with a means for the toothed grooves 10 to engage. A transverse groove 20 is located at the top edge of the third frame plate 21 and the fourth frame plate 22, and is opened inward along the length of the plate from the ends of the third frame plate 21 and the fourth frame plate 22, respectively. The heights from the top edge to the bottom edge of the first frame plate 11, the second frame plate 12, the third frame plate 21, and the fourth frame plate 22 are equal. The groove depth D1 of the toothed groove 10 is equal to the distance D2 from the bottom of the transverse groove 20 to the bottom edge of the frame plate, so that the top edges of the first frame 1 and the second frame 2 are level after splicing. The groove width of the toothed groove 10 is equal to the thickness of the third frame plate 21 and the fourth frame plate 22. After the toothed groove 10 and the transverse groove 20 are engaged, the first frame 1 and the second frame 2 are enclosed to form a pouring area. The pouring area surrounds the tower foot foundation 4 of the transmission tower. Cement is poured into the pouring area to form a foundation protective cap.

[0016] This utility model can effectively adapt to various angle steel tower foundations. By adjusting the frame to match the size of the tower foot plate, it forms a standard protective cap outline, making it easy to cast a protective cap that meets the specifications. It has the advantages of high adaptability, simple structure, convenient construction, and good casting effect, and can achieve good economic and social benefits.

[0017] Furthermore, to ensure the stability of the frame connection during pouring and to prevent the transverse groove 20 from forming a gap in the pouring area, a pair (two) of limiting pins 3 are provided on the third frame plate 21 and a pair (two) of limiting pins 3 are provided on the fourth frame plate 22. Each limiting pin 3 is installed on both sides of the first frame plate 11 and the second frame plate 12 after the toothed groove 10 and the transverse groove 20 are engaged to restrict their displacement. Specifically, the limiting pins 3 include two vertical plates 301 and a top plate 302 connecting the two vertical plates 301, thereby forming a clamping groove 303 between the two vertical plates 302. During installation, the two limiting pins 3 are upside down on the third frame plate 21 so that the third frame plate 21 is clamped in the clamping groove 303. Similarly, the two limiting pins 3 are upside down on the fourth frame plate 22 so that the fourth frame plate 22 is clamped in the clamping groove 303. The vertical height of the limiting pins 3 is equal to the height between the top edge and the bottom edge of the third frame plate 21 and the fourth frame plate 22, thereby making up the height from the bottom of the horizontal groove 20 to the bottom top edge of the frame plate (i.e., the groove depth) after installation, ensuring that the top edge of the irrigation area is level.

[0018] The above preferred embodiments should be regarded as illustrative examples of the embodiments of the present application. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present application should be considered within the scope of protection of this patent.

Claims

1. A universal transmission line foundation protection cap pouring template frame, characterized in that, include: The first and second frames are joined together; wherein: The first frame includes a first frame plate and a second frame plate that are vertically connected, and the first frame plate and the second frame plate are respectively provided with a plurality of vertically arranged toothed grooves with the slots facing downwards. The second frame includes a third frame plate and a fourth frame plate that are vertically connected, and the third frame plate and the fourth frame plate are respectively provided with transverse grooves for the toothed engagement, the transverse grooves being located at the top edges of the third frame plate and the fourth frame plate. After the toothed groove and the transverse groove are engaged, the first frame and the second frame are enclosed together to form a pouring area.

2. The universal transmission line foundation protection cap formwork frame according to claim 1, wherein, The heights from the top edge to the bottom edge of the first frame plate, the second frame plate, the third frame plate, and the fourth frame plate are equal, and the groove depth of the tooth groove is equal to the distance from the bottom of the transverse groove to the bottom edge of the frame plate, so that the top edges of the first frame and the second frame are level after splicing.

3. The universal transmission line foundation protection cap pour form frame of claim 1, wherein, The width of the tooth groove is equal to the thickness of the third frame plate and the fourth frame plate.

4. The universal transmission line foundation protection cap pour form frame of claim 1, wherein, The third and fourth frame plates are each provided with a pair of limiting pins. After the limiting pins are engaged with the toothed groove and the transverse groove, they are respectively installed on both sides of the first and second frame plates to restrict their displacement.

5. The universal transmission line foundation protection cap casting template frame according to claim 4, characterized in that, The limiting pin includes two vertical plates and a top plate connecting the two vertical plates, thereby forming a clamping groove between the two vertical plates. During installation, the limiting pin is flipped onto a third or fourth frame plate, causing the third or fourth frame plate to be clamped in the clamping groove.

6. The universal transmission line foundation protection cap pour form frame of claim 5, wherein, The vertical height of the limiting pin is equal to the height between the top edge and the bottom edge of the third or fourth frame plate, thereby completing the height from the bottom of the transverse groove to the bottom top edge of the frame plate after installation.

7. The universal transmission line foundation protection cap formwork frame according to any one of claims 1-6, characterized in that, The transverse groove is formed by opening the ends of the third and fourth frame plates inward along the length of the plate.

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