Rhombic skeletoned slope protection beam formwork

Abstract

The utility model relates to a kind of rhombic framework slope protection beam formworks.Structure features are as follows: ①including engineering plastics injection molding top formwork and side formwork;②the longitudinal forming groove is equipped in top formwork inner surface, for integrally forming slope protection beam water baffle, groove center is set to vibrating mouth, outer surface is equipped with reinforcing rib and two sides first mounting hole;③the inside surface of side formwork is flat pouring surface, outer surface is equipped with reinforcing rib, top is equipped with the second mounting hole corresponding with first mounting hole;④top formwork is connected with two pieces of side formwork by bolt, form inverted trapezoidal groove structure.The utility model formwork is realized quick disassembly by modularization design, exempt from additional support;Water baffle is once formed to avoid secondary processing;Engineering plastics material makes single piece weight reduce by more than 60% compared with steel formwork, with high stiffness and weather resistance.

Description

Technical Field

[0001] This utility model relates to the field of cement precast formwork technology, specifically to a rhomboid frame slope protection beam formwork. Background Technology

[0002] Rhomboid concrete frame beam structures are widely used in slope protection projects, and their formwork must meet the core requirements of lightweight, high strength, and easy assembly. The current mainstream formwork and its characteristics are as follows:

[0003] ① Steel formwork: It has high rigidity, but the weight of a single piece often exceeds 50kg. It relies on machinery for handling and has low efficiency in construction on slopes. The bolt connection hole position requires high precision, making on-site adjustment difficult, and the cost of cleaning after concrete adhesion is high.

[0004] ② Wood plywood / bamboo plywood formwork: It is relatively lightweight, but the water absorption rate exceeds 8%, which can easily lead to an imbalance in the water-cement ratio of concrete and affect its strength; after repeated use, the edges are prone to delamination and damage, and the average lifespan is less than 10 times; a large number of wooden supports are required to ensure flatness, which increases the cost of auxiliary materials.

[0005] ③ Plastic formwork: solves the corrosion problem, but it is mostly a flat splicing structure, which makes it difficult to form the water-retaining groove unique to slope protection beams; moreover, the many joints lead to a high grout leakage rate, and irregular parts rely on customized steel molds, resulting in high costs.

[0006] Therefore, there is an urgent need to develop a special slope protection beam formwork that integrates water-retaining strip forming function, is lightweight, and requires no support. Through modular design, it can be quickly assembled and disassembled, fundamentally improving the construction efficiency of slope protection. Utility Model Content

[0007] In order to overcome the defects of mainstream formwork in slope protection projects, this utility model provides a rhomboid frame slope protection beam formwork.

[0008] The technical solution adopted by this utility model is as follows: A rhomboid frame slope protection beam template includes: a top template made of plastic, having a first plate body, one side of the inner surface of the first plate body is provided with a forming groove extending along the length direction for forming the top water-retaining strip of the slope protection beam, and the outer surface is provided with crisscrossing first ribs, and several first mounting holes are distributed at intervals along the length direction on both sides; a side template made of plastic, having a second plate body, the inner surface of the second plate body is a flat casting surface, and the outer surface is provided with crisscrossing second ribs; the uppermost second rib is provided with several second mounting holes corresponding to the positions of the first mounting holes; wherein, one top template and two side templates are detachably connected by bolts passing through the first mounting holes and the second mounting holes, and after assembly, they form an inverted trapezoidal groove structure.

[0009] Preferably, the first plate body has a vibration port at the center of the forming groove.

[0010] Preferably, the second ribs at both ends of the second plate body are provided with third mounting holes for splicing adjacent side templates.

[0011] Preferably, a mounting notch is provided on the second rib adjacent to the third mounting hole.

[0012] Preferably, the adjacent side templates that are longitudinally aligned and spliced ​​are connected directly through the third mounting hole by bolts.

[0013] Preferably, the adjacent side templates that are spliced ​​at a vertical angle are connected to the third mounting hole by L-shaped angle iron and bolts, and the two arms of the angle iron are provided with a fourth mounting hole that matches the third mounting hole.

[0014] Preferably, the top template and the side template are integrally injection molded from reinforced polypropylene or ABS engineering plastic, and the thickness of the rib plate is 1.5-2 times the thickness of the plate body.

[0015] This utility model has the following beneficial effects:

[0016] 1. Integrated water-retaining strip: The inner surface of the top formwork is integrated with a longitudinally extending forming groove, which is directly poured to form the water-retaining strip at the top of the slope protection beam, eliminating the secondary processing of the water-retaining strip in the traditional process, shortening the construction period and ensuring structural consistency; a vibration port is opened in the center of the forming groove to facilitate dense filling of concrete and avoid void defects in the water-retaining strip area;

[0017] 2. Modular quick assembly and disassembly: The top template and side template are connected by bolts through the first and second mounting holes to form an inverted trapezoidal groove structure, which can quickly complete the assembly of a single template section without the need for an additional support frame;

[0018] 3. Dual-mode and adaptability: The side template is equipped with a third mounting hole and mounting notch at both ends, supporting two splicing modes: longitudinal and angular. The bolts pass directly through the third mounting hole to achieve straight extension. The third mounting hole is connected by L-shaped angle iron to meet the multi-angle splicing requirements at the nodes of the rhomboid skeleton.

[0019] 4. Sealing and Durability: The inner surface of the side formwork is a continuous and flat pouring surface. Combined with the tight bolt connection between modules, the leakage rate is reduced compared with traditional spliced ​​formwork, ensuring the appearance quality of the slope protection beam. The engineering plastic has excellent weather resistance and a water absorption rate of less than 0.5%, avoiding the problem of water-cement ratio imbalance in concrete caused by water absorption and expansion of wooden formwork. The service life exceeds 100 times.

[0020] 5. Lightweight and high strength: Made of reinforced polypropylene or ABS engineering plastic through one-piece injection molding, the rib thickness is 1.5-2 times that of the plate body. While ensuring rigidity, the weight of a single piece is reduced by more than 60% compared with steel formwork, which can be handled manually and greatly improves the efficiency of slope construction. The plastic material completely avoids the corrosion problem of steel formwork, and the surface has a high degree of smoothness. There is no adhesion after concrete demolding, saving cleaning costs.

[0021] 6. Overall cost: The support-free design reduces the amount of auxiliary materials (such as timber), the standardized modules adapt to different slope sizes, reducing customization costs, and the high reusability means that the single amortization cost is only 1 / 5 of that of steel formwork. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external appearance of Embodiment 1 of this utility model.

[0023] Figure 2 This is an installation diagram of Embodiment 1 of this utility model.

[0024] Figure 3 This is a schematic diagram (vertical splicing) of Embodiment 2 of this utility model.

[0025] Figure 4 This is a schematic diagram of Embodiment 2 of this utility model (vertical angle splicing).

[0026] Top template 1, first plate body 1.1, forming groove 1.2, first rib 1.3, first mounting hole 1.4, vibrating port 1.5;

[0027] Side template 2, second plate body 2.1, second rib 2.2, second mounting hole 2.3, third mounting hole 2.4, mounting notch 2.5;

[0028] Angle iron 3. Detailed Implementation

[0029] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0030] In Example 1, as Figure 1-2As shown, a rhomboid frame slope protection beam template includes: a plastic top template 1 with a first plate body 1.1, one side of the inner surface of the first plate body 1.1 having a forming groove 1.2 extending along the length direction for forming the water-retaining strip at the top of the slope protection beam, and the outer surface having crisscrossing first ribs 1.3, with several first mounting holes 1.4 spaced apart along the length direction on both sides; and plastic side templates 2 with a second plate body 2.1, the inner surface of the second plate body 2.1 being a flat casting surface, and the outer surface having crisscrossing second ribs 2.2; the uppermost second rib 2.2 having several second mounting holes 2.3 corresponding to the positions of the first mounting holes 1.4; wherein, one top template 1 and two side templates 2 are detachably connected by bolts passing through the first mounting holes 1.4 and the second mounting holes 2.3, forming an inverted trapezoidal groove structure after assembly. The inner surface of the first plate body 1.1 of the top formwork 1 is integrated with a groove 1.2, which is directly cast to form the water-retaining structure at the top of the slope protection beam, eliminating the time-consuming secondary processing in traditional processes and improving structural integrity. The top formwork 1 is connected to the second installation hole 2.3 of the side formwork 2 by bolts through the first mounting hole 1.4, enabling modular and rapid assembly. A single top formwork 1 and two side formworks 2 can be quickly assembled into an inverted trapezoidal groove structure without the need for an additional support frame. The first rib plate 1.3 on the outside of the top formwork 1 and the second rib plate 2.2 on the outside of the side formwork 2 form a longitudinal and transverse reinforcing grid, reducing self-weight while ensuring the overall rigidity of the formwork, achieving an optimized balance between lightweight structure and strength.

[0031] In Example 1, as Figure 1-2 As shown, the first plate body 1.1 has a vibration port 1.5 located at the center of the forming groove 1.2. The vibration port 1.5, situated at the center of the forming groove 1.2, allows the vibrator to reach the core area of ​​the water-retaining strip, thoroughly eliminating air bubbles, preventing voids, and eliminating casting defects in the water-retaining strip. Operators can directly observe the concrete filling status through the vibration port 1.5, adjust the vibration strategy in real time, improve construction convenience, and reduce quality risks.

[0032] In Example 1, as Figure 1-2 As shown, the second ribs 2.2 at both ends of the second plate body 2.1 are provided with third mounting holes 2.4 for splicing adjacent side templates 2. The third mounting holes 2.4 are located on the second ribs 2.2 at both ends of the side template 2, supporting longitudinal extension or angle splicing, and adapting to different slope dimensions and diamond skeleton node requirements.

[0033] In Example 1, as Figure 1-2 As shown, a mounting notch 2.5 is provided on the second rib 2.2 adjacent to the third mounting hole 2.4. The mounting notch 2.5, adjacent to the third mounting hole 2.4, provides an operating clearance for tools such as wrenches, solving the problem of bolt tightening in narrow spaces.

[0034] In Example 1, the top formwork 1 and side formwork 2 are integrally injection molded from reinforced polypropylene or ABS engineering plastic, with the rib thickness being 1.5-2 times the thickness of the formwork body. The reinforced polypropylene or ABS engineering plastic has a water absorption rate of <0.5%, eliminating water-cement ratio imbalance in concrete; its surface finish Ra≤0.8μm ensures zero adhesion during demolding, has a service life of >100 cycles, and its maintenance cost is only 15% of that of steel formwork. The rib thickness, reaching 1.5-2 times the thickness of the formwork body, achieves optimal strength-to-weight ratio, reducing the weight of a single piece by 60% compared to steel formwork, facilitating manual handling in slope protection terrain.

[0035] In Example 2, as Figure 3 As shown, two sets of templates are longitudinally aligned and spliced ​​together. Adjacent side templates 2 are connected directly through the third mounting hole 2.4 with bolts. The longitudinally aligned adjacent side templates 2 are directly connected through the third mounting hole 2.4 with bolts, eliminating intermediary components at the joint and minimizing the risk of grout leakage.

[0036] In Example 3, as Figure 4 As shown, two sets of templates are spliced ​​at a vertical angle. Adjacent side templates 2 are connected to the third mounting hole 2.4 via L-shaped angle irons 3 and bolts. The two arms of the angle irons 3 have fourth mounting holes that match the third mounting hole 2.4. In fact, based on the angle of the L-shaped angle irons 3, the bolt connection between the fourth mounting hole and the third mounting hole 2.4 allows for the assembly of slope protection beam nodes within an angle range of 60–120°, breaking through the angle limitations of traditional templates.

[0037] Obviously, the above embodiments of this utility model are merely examples for illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Other obvious variations or modifications derived from the essential spirit of the present utility model still fall within the protection scope of the present utility model.

Claims

1. A rhomboid frame slope protection beam formwork, characterized in that, include: The top template (1) made of plastic has a first plate body (1.1). A forming groove (1.2) extending along the length direction is provided on one side of the inner surface of the first plate body (1.1) for forming the water-blocking strip at the top of the slope protection beam. The outer surface is provided with crisscrossing first ribs (1.3). Several first mounting holes (1.4) are distributed at intervals along the length direction on both sides of the width direction. The side template (2) made of plastic has a second plate body (2.1). The inner surface of the second plate body (2.1) is a flat casting surface, and the outer surface is provided with crisscrossing second ribs (2.2). The uppermost second rib (2.2) is provided with a number of second mounting holes (2.3) corresponding to the positions of the first mounting holes (1.4). One of the top templates (1) and two of the side templates (2) are detachably connected by bolts through the first mounting hole (1.4) and the second mounting hole (2.3), forming an inverted trapezoidal groove structure after assembly.

2. The rhomboid frame slope protection beam formwork according to claim 1, characterized in that: The first plate body (1.1) has a vibration port (1.5) at the center of the forming groove (1.2).

3. The rhomboid frame slope protection beam formwork according to claim 1, characterized in that: The second rib (2.2) at both ends of the second plate body (2.1) is provided with a third mounting hole (2.4) for splicing adjacent side templates (2).

4. The rhomboid frame slope protection beam formwork according to claim 3, characterized in that: An installation notch (2.5) is provided on the second rib (2.2) adjacent to the third mounting hole (2.4).

5. The rhomboid frame slope protection beam formwork according to claim 3 or 4, characterized in that: The adjacent side templates (2) that are longitudinally aligned and spliced ​​are connected by bolts that directly pass through the third mounting hole (2.4).

6. The rhomboid frame slope protection beam formwork according to claim 3 or 4, characterized in that: The adjacent side templates (2) that are spliced ​​at a vertical angle are connected to the third mounting hole (2.4) by L-shaped angle iron (3) and bolts. The two arms of the angle iron (3) are provided with a fourth mounting hole that matches the third mounting hole (2.4).

7. The rhomboid frame slope protection beam formwork according to claim 1, characterized in that: The top template (1) and the side template (2) are integrally injection molded from reinforced polypropylene or ABS engineering plastic, and the thickness of the rib plate is 1.5-2 times the thickness of the plate body.

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