A formwork device for prefabricating a cover plate of a drainage structure

Abstract

The utility model relates to building construction technology technical field, and disclose a kind of formwork device of drainage structure prefabricated cover plate, including two symmetrical main channel steel, several mounting holes are set in two main channel steel, and tension bolt is arranged in two symmetrical mounting holes, a plurality of length adjusting clamps are provided between two main channel steel, a plurality of dampers are all provided on two main channel steel, damper includes hinged bottom steel plate and solid square steel, the top of solid square steel is provided with threaded hole, fastener is arranged in threaded hole, through hole is left between two adjacent length adjusting clamps, wedge is arranged in through hole, the upper end of wedge is provided with buckle, the utility model is by adjusting length adjusting clamp length and damper position, main channel steel can be prefabricated in batches, a edition can prefabricate multiple cover plates, construction efficiency is high, saves time, and practicality is strong, can be repeatedly used, even if deformation damage by external force, waste recycling can be also, and economy is good.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a template device for prefabricated cover plates of drainage structures. Background Technology

[0002] With the maturity of prefabricated construction technology and the increase in urban flood control projects, prefabricated design elements are appearing in more and more municipal engineering projects. Prefabricated manhole covers and storm drain covers are frequently seen in urban underground pipe network construction. Typically, drainage engineering projects involve a large number of prefabricated covers, long construction periods, and high requirements for appearance quality. Therefore, how to quickly prefabricate while ensuring appearance quality is crucial. This utility model is a template device for prefabricated covers of drainage structures, featuring batch production and adjustable dimensions. Traditional underground drainage engineering often uses individual molds for prefabricated covers, which are expensive, require different molds for different cover sizes, and lack flexibility; or traditional four-sided splicing templates are used, which, while not expensive in terms of material cost, have low construction efficiency, are prone to mold displacement, and result in poor appearance quality of the prefabricated covers.

[0003] To address this issue, this utility model provides a template device for prefabricated cover slabs of drainage structures. Utilizing this template system, cover slabs of different sizes can be prefabricated by adjusting the length of the clamping plates and the position of the dampers, making it highly practical. The main channel steel is relatively long, allowing for batch prefabrication; multiple cover slabs can be prefabricated from a single template, resulting in high construction efficiency and time savings. The main material is steel, which has a low deformation coefficient and can be reused multiple times. Even if damaged by external forces, it can be recycled, offering good economic benefits. This utility model combines practicality, speed, and economy, making it worthy of promotion. Utility Model Content

[0004] The purpose of this utility model is to provide a formwork device for precast drainage cover slabs, solving the following technical problems: In drainage engineering construction, the number of precast cover slabs is usually huge, the construction period is long, and the appearance quality requirements are high. How to quickly precast them while ensuring appearance quality is extremely important. This utility model is a formwork device for precast drainage cover slabs, featuring batch production and adjustable dimensions. Traditional underground drainage engineering often uses individual molds for precast cover slabs, which are expensive, require different molds for different sizes, and lack flexibility; or traditional four-sided splicing molds are used, which, while not expensive in terms of material cost, have low construction efficiency, are prone to mold displacement, and result in poor appearance quality of the precast cover slabs.

[0005] The objective of this utility model can be achieved through the following technical solutions: A template device for a precast cover plate of a drainage structure includes two symmetrically arranged main channel steels, with a plurality of mounting holes on the two main channel steels, tie bolts passing through the two symmetrical mounting holes, and a plurality of length adjustment clamps arranged between the two main channel steels. The length adjusting clamp includes a telescopic sleeve, one end of which is movably sleeved with a telescopic rod, and one end of which is threaded with a helical set screw. One end of the helical set screw is threaded with a nut sleeve, and one end of the nut sleeve is connected to the telescopic rod.

[0006] As a further embodiment of this utility model: multiple dampers are provided on both main channel steels, and the dampers include a bottom steel plate and a solid square steel connected by hinges.

[0007] As a further embodiment of this utility model: the top of the solid square steel is provided with a threaded hole, and a fastener is provided in the threaded hole.

[0008] As a further embodiment of this utility model: a through hole is provided between two adjacent length adjusting clamps, and a wedge is provided in the through hole.

[0009] As a further embodiment of this utility model, a buckle is provided at the upper end of the wedge.

[0010] As a further embodiment of this utility model: the distance between the two mounting holes is 2m, and the distance from the center point of the mounting holes at both ends to the end of the main channel steel is 0.5m.

[0011] As a further embodiment of this utility model: the damper comprises two solid square steel bars with dimensions of 2cm×2cm, and the thickness of the bottom steel plate is 3mm.

[0012] As a further embodiment of this utility model, the fastener consists of a screw and a nut.

[0013] The beneficial effects of this utility model are: (1) This utility model utilizes the set length adjustment clamp and main channel steel to form a closed system. The length adjustment clamp meets the length requirements of the prefabricated cover plate through the spiral top screw and nut sleeve. Through the precise size control of the damper and the coordinated stabilization structure, the position setting of the length adjustment clamp and the damper can prefabricate cover plates of different sizes. The main channel steel can be prefabricated in batches. One plate can prefabricate multiple cover plates. The construction efficiency is high, time is saved, and it is highly practical. The main material of the closed system is steel. The deformation coefficient is small and it can be reused multiple times. Even if it is damaged by external force deformation, it can be recycled. It is economical. (2) This utility model reinforces the symmetrical side molds on both sides with wedges and fixes the symmetrical length adjustment plates on both sides with the help of lowering the buckles. This ensures that the formwork does not tilt inward before pouring and prevents the reinforcement plates from shifting outward during the pouring process. After the concrete is poured, the plates can be easily removed by simply loosening the buckles and knocking out the wedges. The operation is convenient and efficient. This design takes into account practicality, speed and economy, and has high promotion value.

[0014] 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

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a top view of the multi-layer length adjustment clamping unit of this utility model; Figure 3 This is a detailed structural diagram of a single length-adjustable clamp of this utility model. Figure 4 This is a schematic diagram of the length adjustment clamp of this utility model; Figure 5 This is a schematic diagram of the overall structure of the damper of this utility model; Figure 6 This is a schematic diagram of the main structure of the damper of this utility model; Figure 7 This is a schematic diagram of the wedge and buckle closure structure of this utility model; Figure 8 This is a schematic diagram of the structure of the wedge and buckle of this utility model when they are opened.

[0017] In the diagram: 1. Main channel steel; 2. Tie bolt; 3. Length adjustment clamp; 31. Telescopic sleeve; 32. Telescopic rod; 33. Spiral set screw; 34. Nut sleeve; 35. Connecting rod; 4. Damper; 5. Solid square steel; 6. Bottom steel plate; 7. Threaded hole; 8. Fastener; 9. Wedge; 10. Buckle. Detailed Implementation

[0018] 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.

[0019] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] In the field of building construction technology, existing precast cover slab formwork for underground drainage projects has significant shortcomings: one type uses independent single molds, which, while meeting usage requirements, are expensive to customize, and different sizes of covers require specific molds, resulting in extremely poor flexibility; the other type uses traditional four-sided splicing formwork, which, while having lower material costs, suffers from low construction efficiency and is prone to formwork displacement, leading to poor appearance quality of the precast covers. To address the deficiencies of these traditional formwork devices, this utility model, through innovative structural design, enables the precasting of covers of different sizes. Its specific implementation is as follows: Example 1: As Figures 1-3 As shown, a formwork device for a precast cover slab of a drainage structure includes two symmetrical main channel steels 1. The main channel steels 1 are an important part of the formwork system and play the role of supporting the skeleton. Several mounting holes are opened on the two symmetrical main channel steels 1, and the mounting holes correspond one to one. The distance between the center points of every two mounting holes is two meters. Tie bolts 2 are inserted into the two symmetrically arranged mounting holes. The tie bolts 2 play the role of preventing deformation in the formwork system. The overall stability of the system is ensured by the tie bolts 2.

[0021] Furthermore, such as Figure 2 , Figure 3 As shown, multiple length adjustment clamps 3 are provided between the two symmetrical main channel steels 1. The length of the length adjustment clamps 3 can be freely adjusted to meet the length requirements of the precast cover plate and serve as a side mold. In actual use, together with the two symmetrical main channel steels 1, they form a closed system.

[0022] Furthermore, such as Figure 3 As shown, the length adjusting clamp 3 includes a telescopic sleeve 31, one end of which is movably sleeved with a telescopic rod 32. The telescopic rod 32 has a square structure. One end of the telescopic sleeve 31 is threaded with a spiral set screw 33. One end of the spiral set screw 33 is threaded with a nut sleeve 34 inside the telescopic sleeve 31. The end of the nut sleeve 34 is fixedly connected with a connecting rod 35. The end of the connecting rod 35 away from the nut sleeve 34 is rotatably connected to the telescopic rod 32. A handle sleeve is fixedly provided on the outside of the telescopic sleeve 31 with the spiral set screw 33. By rotating the spiral set screw 33, the nut sleeve 34 cannot rotate with the spiral set screw 33 due to the restriction of the square telescopic rod 32, but moves axially along the spiral set screw 33. Thus, the nut sleeve 34 drives the connecting rod 35 to move, thereby pushing the telescopic rod 32 to move back and forth, adjusting the relative distance between the telescopic sleeve 31 and the telescopic rod 32, so as to quickly adjust the length of the length adjustment clamp 3, thereby adjusting to meet the length requirements of the prefabricated cover plate.

[0023] Furthermore, such as Figure 5 , Figure 6 As shown, multiple dampers 4 are installed on both symmetrical main channel steels 1. The dampers 4 meet the width requirements of the precast cover plate. The damper 4 includes a bottom steel plate 6 and a solid square steel 5 connected by a hinge. The thickness of the bottom steel plate 6 is 3mm. The size of the solid square steel 5 is 2cm×2cm. An 8mm threaded hole 7 is opened on the top of the solid square steel 5. A fastener 8 is installed in the threaded hole 7. The fastener 8 can be a screw and a nut. The bottom steel plate 6 and the solid square steel 5 are fixed by the screw and nut. The damper 4 consists of two 2cm×2cm solid square steels 5 with an 8mm threaded hole 7 at the top. A 6mm bolt is inserted and the nut is tightened on the channel steel to play the role of positioning the width.

[0024] External energy is dissipated through multiple mechanisms, including hinge rotation friction, micro-deformation of solid square steel 5, and friction between fastener 8 and threaded hole 7. At the same time, the positioning structure of fastener 8 is used to limit excessive displacement, ultimately achieving the effect of attenuating structural vibration and buffering impact.

[0025] Furthermore, such as Figure 3 , Figures 6-8 As shown, a through hole with a width of 2cm is provided between adjacent length adjusting clamps 3. A wedge 9 is installed in the through hole. The two length adjusting clamps 3 are reinforced and supported by hammering in the wedge 9. A locking clip 13 is provided at the upper end of the wedge 9. During the pouring process, the clip 10 is lowered to fix the clamp, ensuring that the formwork does not tilt inward before pouring and that the reinforced support clamp does not move outward during the pouring process. After the concrete is poured, the clip 10 is released and the wedge 9 is hammered out, making it easy to remove the length adjusting clamp 3.

[0026] The working principle of this utility model is as follows: On a hardened site, pairs of pre-drilled main channel steels 1 are placed. The length of the length adjustment clamps 3 is adjusted according to the length of the precast cover plate, and then vertically inserted into the pairs of main channel steels 1. Tie bolts 2 are then inserted sequentially through the mounting holes of the main channel steels 1 to form a preliminary integral structure. According to the width of the precast cover plate, positioning dampers 4 are symmetrically fixed to the main channel steels 1 in sequence. The position of the length adjustment clamps 3 is adjusted, the tie bolts 2 are tightened, and wedges 9 are driven in to form a stable template system.

[0027] Place the steel reinforcement cage, pour concrete, and when the edges and corners are no longer damaged, loosen the tie bolts 2 in sequence, knock out the wedges 9, remove the main channel steel 1 and the length adjustment clamp 3. The damper 4 can be left unremoved, and the length of the length adjustment clamp 3 is not adjusted. Move it to the new site and proceed to the next version of the cover plate prefabrication to achieve cyclical construction.

[0028] Project Example: Prefabrication of drainage structure cover plates with dimensions of 1.8m × 0.4m × 0.15m is required. The main channel steel 1 is 9 meters long (0.5 meters from the end of the installation hole at both ends, with an installation hole every 2 meters in the middle, dividing the main channel steel 1 into 4 units). The length adjustment clamp 3 is made of steel and is adjustable in length, with a width of 4 centimeters (a 2-centimeter gap is left between two adjacent length adjustment clamps 3). 16 pieces can be prefabricated from one sheet.

[0029] 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. A formwork device for precast cover slabs of drainage structures, characterized in that, It includes two symmetrically arranged main channel steels (1), with several mounting holes on the two main channel steels (1), tie bolts (2) passing through the two mounting holes, and multiple length adjustment clamps (3) between the two main channel steels (1). The length adjustment clamp (3) includes a telescopic sleeve (31), one end of which is movably sleeved with a telescopic rod (32), and one end of the telescopic sleeve (31) is threaded with a spiral set screw (33), one end of which is threaded with a nut sleeve (34), and one end of the nut sleeve (34) is connected to the telescopic rod (32).

2. The formwork device for a precast cover slab of a drainage structure according to claim 1, characterized in that, Multiple dampers (4) are provided on both main channel steels (1). The dampers (4) include a bottom steel plate (6) and a solid square steel (5) connected by a hinge.

3. The formwork device for a precast cover slab of a drainage structure according to claim 2, characterized in that, The solid square steel (5) has a threaded hole (7) at the top, and a fastener (8) is provided in the threaded hole (7).

4. The formwork device for a precast cover slab of a drainage structure according to claim 1, characterized in that, A through hole is provided between two adjacent length adjustment clamps (3), and a wedge (9) is provided in the through hole.

5. A formwork device for a precast cover slab of a drainage structure according to claim 4, characterized in that, The upper end of the wedge (9) is provided with a buckle (10).

6. A formwork device for a precast cover slab of a drainage structure according to claim 1, characterized in that, The distance between the two mounting holes is 2m, and the distance from the center point of the mounting holes at both ends to the end of the main channel steel (1) is 0.5m.

7. A formwork device for a precast cover slab of a drainage structure according to claim 2, characterized in that, The damper (4) includes two solid square steel bars (5) with a size of 2cm×2cm, and the bottom steel plate (6) has a thickness of 3mm.

8. A formwork device for a precast cover slab of a drainage structure according to claim 3, characterized in that, The fastener (8) consists of screws and nuts.

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