CN207608796U - A kind of assembled cement concrete paving board mold - Google Patents

Abstract

The utility model relates to the field of road engineering, in particular to an assembled cement concrete pavement mold. The utility model provides an assembled cement concrete pavement mould, which includes a bottom formwork, and more than three side formworks are arranged on the bottom formwork, the side formworks extend along the upper surface of the bottom formwork, and the side formworks are connected in sequence to form a side formwork It is the upper open space with the side wall and the bottom formwork as the bottom surface. Each side formwork is equipped with one or more openable and closable magnetic fixing parts that match the material of the bottom formwork. The outer wall of each side formwork corresponds to its corresponding The edges of the bottom formwork are all connected by one or more telescopic fixing rods, and one or more spacers are arranged above the upper open space, and the two ends of the spacer are detachably connected with the edges of the bottom formwork. The paving panel mold provided by the utility model ensures the flatness of the panel surface. At the same time, a flexible mold is laid on the bottom mold to construct a fine and complex paving panel surface structure, which simplifies the construction steps.

Description

A prefabricated cement concrete pavement mold

technical field

The utility model relates to the field of road engineering, in particular to an assembled cement concrete pavement mold.

Background technique

Prefabricated pavement technology is a rapid pavement construction technology. Its meaning is: to break the original pavement, transport the prefabricated pavement panels to the site for rapid assembly, and open traffic after completion. This technology can be applied to rapid new construction and rapid maintenance of road engineering, airport track engineering, and port pavement engineering.

After the cement concrete paving slab is poured, its surface must be smoothed before the final setting of the concrete. When manual troweling is used, the labor intensity is high, and moisture, cement and fine sand will be brought to the concrete surface, so that the surface has higher drying shrinkage and lower strength than the lower concrete or mortar, which affects the overall surface of the paving panel. performance. After the plastering is completed, in order to make the paving panel have a certain anti-slip performance, it needs to be treated with surface transverse texture. The transverse texture has methods such as pressing grooves, napping, and sawing. The construction process is cumbersome, and the construction quality will directly affect the flatness, roughness and anti-wear performance of the paving panels. Therefore, it is necessary to improve the traditional formwork, so that it can have better flatness and fine surface texture structure while simplifying the construction process, so as to ensure the quality of the paving panel.

For prefabricated cement concrete slabs, it is necessary to arrange embedded parts such as lifting and leveling components in the slab. The embedded components are generally fixed by opening holes in the bottom form. hole. Bolting the sideforms also requires opening holes in the mold. When there are too many holes in the mold, it will affect its integrity, and it will also cause inconvenience to the prefabrication of the paving panel, and even leave traces such as protrusions on the panel surface. For decking molds, the number of holes should be as few as possible.

In the pavement of roads, airports and ports, especially in road engineering, in order to meet the red line of land use, topography and vehicle driving characteristics, it is necessary to construct different line types of pavement. Therefore, when prefabricating the prefabricated paving panels, it is necessary to construct the prefabricated paving panels with different shapes and sizes to meet different engineering needs. In order to construct prefabricated paving panels with different shapes and sizes, the usual method is to order steel molds for prefabrication. Each set of steel molds can only construct prefabricated cement concrete slabs of one size and one shape. The processing cycle of the mold Long, low reuse rate, high input cost; if easy-to-process molds such as wooden molds are used, it is difficult to ensure the dimensional accuracy of prefabricated panels, which affects the on-site installation of prefabricated paving panels, and also wastes formwork materials.

The traditional cement concrete slab mold is large in size, complicated to disassemble and assemble, and inconvenient to move and transport, so the concrete can only be poured at the same place; at the same time, the traditional mold can only pour one concrete slab, even if the slab size is smaller than the bottom formwork. Smaller, less efficient use of molds.

Therefore, in order to meet the prefabrication of prefabricated cement concrete slabs of different sizes and shapes, improve the prefabrication efficiency of prefabricated paving slabs, reduce prefabrication costs, and control prefabrication accuracy, it is necessary to prefabricate prefabricated paving slabs of different sizes and shapes, and can be multi- The first used mold. In addition, the mold should be easy to disassemble and transport, and can be moved to other sites for testing; when the size of the concrete slab is small, the mold should be able to prefabricate multiple paving panels at the same time on a bottom form, so as to make full use of the mold's ability to manufacture paving panels of different sizes. panel features.

Utility model content

In view of the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide an assembled cement concrete pavement mold, which is used to solve the problems in the prior art.

In order to achieve the above purpose and other related purposes, the utility model provides an assembled cement concrete pavement mould, which includes a bottom formwork, and more than three side formworks are arranged on the bottom formwork, and the side formworks extend along the upper surface of the bottom formwork , the side templates are sequentially connected to form an upper open space with the side templates as the side walls and the bottom template as the bottom surface. Open and close magnetic fasteners, the outer wall of each side formwork and the edge of the corresponding bottom formwork are connected by one or more telescopic fixing rods, and one or more positioning frames are arranged above the upper open space. The two ends of the spacer are detachably connected with the edge of the bottom template.

In some embodiments of the present utility model, side formwork extensions are also provided on the side formwork.

In some embodiments of the present utility model, the material of the bottom template is selected from steel.

In some embodiments of the present utility model, the material of the side formwork is selected from steel and/or plastic.

In some embodiments of the present utility model, a seal is provided at the connection between each side formwork.

In some embodiments of the present utility model, the bottom template and/or the side templates are provided with hanging parts.

In some embodiments of the present utility model, the middle part of the side formwork is connected with one end of the other side formwork.

In some embodiments of the present utility model, the telescopic fixing rod is detachably connected to the bottom formwork and the side formwork.

In some embodiments of the present utility model, a flexible layer is further provided on the upper surface of the bottom template, and the flexible layer is located between the bottom template and the side templates.

In some embodiments of the present utility model, the upper surface of the flexible layer is provided with texture.

In some embodiments of the present utility model, the upper surface of the bottom template is a plane, the inner wall of the side template is a plane, and the angle between the upper surface of the bottom template and the inner wall of the side template is 80-90° .

In some embodiments of the present invention, four side templates are included, thereby forming an upper open space with a quadrangular cross-section.

In some embodiments of the present utility model, a support is provided under the bottom template.

In some embodiments of the present utility model, the support includes a support body and a height adjusting device for adjusting the height of the support.

In some embodiments of the present utility model, more than two positioning frames are provided, and the positioning frames are evenly distributed above the upper open space.

Description of drawings

Fig. 1 shows the overall structure schematic diagram of the utility model.

Fig. 2 shows the top view of the utility model.

Figure 3 shows a side view of the utility model.

Fig. 4 is a schematic diagram showing the dimensions of the special-shaped plate in Example 1 of the present utility model.

Component designation description

1 bottom template

2 side templates

21 Seals

22 Side formwork extensions

3 Openable and closing magnetic mounts

4 telescopic fixing rods

5 positioning bracket

51 Positioner

6 hangers

7 flexible layer

8 supports

81 Support body

82 height adjustment device

Detailed ways

The implementation of the present utility model is illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

See Figures 1 through 3. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the utility model Therefore, it has no technical substantive meaning. Any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of The technical content disclosed by the utility model must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable range of the utility model, and the change or adjustment of its relative relationship, without any substantial change in the technical content, shall also be regarded as the practicable scope of the utility model.

As shown in Figures 1-3, the utility model provides an assembled cement concrete pavement mould, including a bottom formwork 1, and the bottom formwork 1 is provided with more than three side formworks 2, and the side formworks 2 are arranged along the bottom formwork. 1, the side templates 2 are connected in turn to form an upper open space with the side templates 2 as the side walls and the bottom template 1 as the bottom surface. For example, the middle part of the first side template 2 can be Connect with one end of the second side formwork 2, then connect the middle part of the second side formwork 2 with one end of the third side formwork 2, and connect in turn by analogy, the middle part of the last side formwork 2 and the first side formwork One end of the template 2 is connected to form a closed polygon, thereby providing the upper open space.

In the assembled cement concrete pavement mold provided by the utility model, each side formwork 2 is provided with one or more openable and closable magnetic fixing parts 3 matched with the material of the bottom formwork 1. The closed magnetic fixture 3 is a device that can generate a magnetic attraction force with the bottom template 1 when it is opened, and the magnetic attraction force disappears when it is closed. The openable and closable magnetic fixture 3 can be a concrete formwork fixed magnetic box (for example, Ningbo Sai SX-1800 concrete prefabricated panel fixed magnetic box produced by Xin Magnetic Technology Co., Ltd.), so that when the openable and closable magnetic fastener 3 is opened, the bottom template 1 and the openable and closable magnetic The side formwork 2 and the bottom formwork 1 are fixed by force to realize the joint between each side formwork 2, but the side formwork 2 does not adopt the connection method of direct mutual fixing, and the use of the magnetic box can realize quick installation, Disassembly, so that the connection position between the side formwork 2 can be adjusted when necessary, and the shape of the upper open space can be adjusted, thereby adjusting the shape of the cement concrete plate obtained by pouring. After the single magnetic box is installed, the actual load-bearing tensile force can be greater than or equal to 800KG. Those skilled in the art can adjust the position of the openable and closable magnetic fixture 3 on the side formwork 2 according to the shape of the side formwork 2, for example, the openable and closable magnetic fixture 3 can be located on the upper surface of the side formwork 2, and for another example, the side formwork The outer wall of 2 can be provided with a recess as an openable and closable magnetic fixing part accommodating space for accommodating the openable and closable magnetic fixing part 3, and the bottom surface of the space can be parallel to the bottom template 1 to form a better fixing effect. The material of the bottom template 1 is usually at least partly or entirely steel, so that when the openable and closable magnetic fixture 3 is opened, it can form a force with it. The bottom template 1 can also include other materials such as plastics, and these materials can usually be It is an engineering material with relatively high toughness, and the material of the side formwork 2 can be at least partially or entirely steel and/or plastic, and these materials can usually be engineering materials with relatively high toughness. The bottom template 1 can be a plate with a flat upper surface, more specifically a plate with a thickness of 2cm-4cm, more specifically a cuboid plate, and the length of its upper surface and/or lower surface can be 4m-10m , the width can be 2m-6m. The side formwork 2 can be a cylinder whose inner wall is a plane, thereby forming 80-90°, usually 90°, between the upper surface of the bottom formwork 1 and the inner wall of the side formwork 2, and the side formwork 2 is more Specifically can be cuboid, and its length can be 0.5m-10m, and width can be 0.5m-6m, and height (corresponding to the thickness of bottom template 1) can be 20-40cm, and the inboard of described side template and bottom template upper surface contact place The corners of the board can be provided with straight chamfers or round chamfers. The side length of the straight chamfers is 3-10mm, and the radius of the round chamfers is 3-10mm, so as to avoid damage to the corners due to stress concentration during transportation. . In a specific embodiment of the utility model, four side templates 2 are included, and the side templates 2 form an upper open space with a quadrangular section, and the section is a cross section along the direction of the upper surface of the bottom template.

In the assembled cement concrete pavement mold provided by the utility model, the outer wall of each side formwork 2 (relative to the inner wall forming the upper open space) and the edge of the corresponding bottom formwork 1 (usually refers to the edge that can be directly passed through a straight line) The outer wall of the side template 2 and the edge of the bottom template 1 are connected) by one or more telescopic fixing rods 4, preferably by more than two telescopic fixing rods 4, so as to achieve a more stable fixing effect. The connection between the telescopic fixing rod 4 and the bottom template 1 and/or the side template 2 can be a detachable connection, for example, the bottom template 1 and the side template 2 can be provided with positioning pin holes and/or screw holes, which can be telescopically The end of the fixing rod can be provided with a hole corresponding to the positioning pin hole or the screw hole bolt, so that the positioning pin and/or bolt can be used to detachably fix the telescopic fixing rod to the corresponding position on the bottom formwork 1 and the side formwork 2, thereby Fix the bottom formwork and side formwork, and only need to remove the bolts and pins when disassembling. The telescopic fixing rod 4 can usually be telescopic when needed, and can be fixed at a specific length after being adjusted to the required length. Rods etc. can be rotated to realize the elongation and shortening of the telescopic fixed rod 4, and then realize the fine adjustment of the position of the side formwork 2.

In the assembled cement concrete pavement mold provided by the utility model, the joint between each side formwork 2 can be provided with a seal 21, and the seal is used to seal the gap between adjacent side formworks 2, so that The material in the upper open space will not leak from the gap between the side templates 2, and the sealing member 21 can be, for example, a leak-proof gasket, and the material of the leak-proof gasket can be silica gel, rubber, geotextile, etc.

In the assembled cement concrete pavement mold provided by the utility model, the bottom template 1 and/or the side template 2 can also be provided with a hanger 6, so that the whole mold can be lifted, for example, the mold can be One side is lifted to make the mold turn over. The hanger 6 can be a hook, a hole, etc. on the bottom formwork 1 and/or side formwork 2, which is usually located on the edge of the bottom formwork 1 and/or side formwork 2, so as to facilitate the turning over of the mould.

In the assembled cement concrete pavement mold provided by the utility model, the side formwork 2 is also provided with side formwork extensions 22 . The side formwork extension 22 can generally be a further upward extension of the side formwork 2, thereby forming a higher upper open space. The size of the side formwork extension 22 is generally matched with the side formwork 2, for example, its length can be the same as that of the side formwork 2, so that the upper open space enclosed around it is further extended upwards, and the length of the side formwork extension 22 can also be Shorter than the side formwork 2, or only set side formwork extensions 22 on part of the side formwork 2 or part of the side formwork 2, so that the shape of the upper surface of the upper open space can be adjusted, and the formed Cement concrete slabs can be constructed into many more shapes. The material of the side formwork extension 22 is usually steel and/or plastic at least partly or completely, and these materials can usually be engineering materials with relatively high toughness. The side formwork extension 22 is usually detachably connected to the side formwork 2, for example, using a closable magnetic box to press the side formwork extension 22 on the side formwork 2, or to connect the side formwork extension 22 and the side formwork. Drill holes between 2 and connect with bolts.

In the assembled cement concrete pavement mold provided by the utility model, the upper surface of the bottom formwork 1 is also provided with a flexible layer 7, and the flexible layer 7 is located between the bottom formwork 1 and the side formwork 2, such as can be laid on On the bottom formwork 1, so that the bottom formwork 1 and the side formwork 2 can fit better and avoid gaps. The flexible layer 7 can be a flexible film, specifically made of flexible materials such as rubber, resin, and silica gel, for example, it can be polyurethane rubber produced by German Riley Company. The upper surface of the flexible layer 7 (usually the upper surface located in the upper open space) can be provided with texture, so that the surface of the cement concrete plate attached to the flexible layer can form the required texture during pouring, which The overall cost is low, and it is easy to replace after use and can be reused many times.

In the assembled cement concrete pavement mold provided by the utility model, a support 8 is provided below the bottom template 1 for supporting the assembled cement concrete pavement mold. The support 8 generally includes a support body 81 and a height adjustment device 82 for adjusting the height of the support. The height adjustment device 82 can be, for example, a jack. By adjusting individual jacks, the warpage of the bottom formwork can be controlled. Position, warpage degree to meet the design requirements.

In the assembled cement concrete pavement mold provided by the utility model, one or more positioning frames 5 are also arranged above the upper open space, and the two ends of the positioning frame 5 are detachably connected with the bottom formwork 1. The edges are connected. For example, the two ends of the positioning frame 5 can be provided with clamping parts, and the clamping parts can be U-shaped clips with certain flexibility. The thickness matches, so that it can be clamped on the bottom template 1. The positioning frame 5 can be evenly distributed above the upper open space, and the positioning frame 5 can be provided with one or more positioning pieces 51, and the positioning pieces 51 can be suspended or fixed on the positioning frame 5, Thereby extending into the upper open space from top to bottom, so that the required shape can be formed by the positioning piece 51 at the position of the positioning piece 51 during pouring or the positioning piece 51 is retained in the cement concrete plate obtained by pouring, for example, positioning The part 51 can be a column or a pyramidal metal part, etc., and holes can be formed at the corresponding positions of the cement concrete slabs during pouring. For another example, the positioning part 51 can be a pre-embedded part, which can be embedded in the cement concrete obtained during pouring. in the plate.

In the assembled cement concrete pavement mold provided by the utility model, one or more vibrating pumps can also be provided around the bottom formwork 1, and the vibrating pumps can evenly vibrate the formwork to fully vibrate the cement concrete. Pounding reduces the process of scraping the floating pulp. The bottom of the mold can also be provided with a damping device, which can ensure the stability of the mold while the vibration pump is compact. The damping device can be such as a rubber sheet, for example, can be set between the bottom template 1 and the support 8 The high-modulus rubber sheet can absorb shock and reduce the impact of the vibration device on the support.

The assembled cement concrete pavement mold provided by the utility model has the advantages of convenient disassembly and assembly, accurate positioning, simple and convenient construction operation, and saves the cost of manufacturing a large number of molds with different sizes. The side template and the bottom template are positioned and pressed by the magnetic box, so that the required special-shaped template size can be formed. When prefabricating road slabs, firstly move the side formwork inwards, position and press it with the magnetic box of the bottom form, and adjust the length of the telescopic fixing rod to prevent the side form from tilting. Before prefabrication, it is usually necessary to spray a release agent in the mold. Adjust the position of the positioning frame according to the required position of the embedded parts or positioning parts, and install the embedded frame, hoist the threaded casing, etc. After loading the reinforced skeleton, the cloth is placed in the mold and vibrated and compacted. After professional maintenance of the concrete slab, loosen all magnetic boxes, and finally use the cement slab lifting device and special lifting tools to lift the cement slab.

The assembled cement concrete paving slab mold provided by the utility model adopts an inverted mode to prefabricate the concrete slab, that is, the concrete slab needs to be turned over after it is poured and formed. The use of this mold ensures the flatness of the slab surface. At the same time, a flexible mold is laid on the bottom mold to construct a fine and complex surface structure of the paving slab, which simplifies the construction steps. The side templates of the mold can construct inner cavities of different shapes and sizes, and the mold can be reused many times, which saves the cost of manufacturing molds of different sizes, and is economical and practical. The telescopic fixing rod can be used to fine-tune the position of the mold, realize the precise positioning of the side formwork, and realize fine prefabrication. At the same time, the telescopic fixing rod and the fixed magnetic box can realize the fixing of the side formwork, eliminating the deformation of the formwork caused by the bolt stress. The adjustable positioning frame can accurately fix the position of the embedded components when prefabricating the concrete slab, and the side formwork and the bottom formwork do not need to open holes, which ensures the integrity of the mold as a whole. The mold is easy to assemble and disassemble, easy to transport, and can be prefabricated at different locations, effectively improving the construction efficiency of the fabricated cement concrete slab.

Example 1

To replace a non-rectangular cement concrete panel with unequal thickness, the damaged panel can be replaced quickly by using the prefabricated pavement repair technology. The plate is a special-shaped plate, and its plane size is shown in Figure 4 below. According to the core drilling results, the thickest part is 30cm, the thinnest part is 23cm, and the average thickness is 27.2cm.

The repair idea of the plate is: use the above-mentioned prefabricated cement concrete paving slab mold to prefabricate a special-shaped plate similar to the target plate, prefabricate in the factory and reach the expected strength, and transport it to the site to replace the original plate to complete the repair. In the project, the method of leveling the base layer is used to make the thickness of the board consistent.

The plane size is reduced by 1cm from each side on the basis of the original plate size. In the actual construction process, cut along the slab seams of the original slabs, and control the joints between the prefabricated slabs and the surrounding original slabs at about 1cm, which will facilitate the placement of the prefabricated slabs and the leveling of the prefabricated slabs.

The size of the bottom formwork used in the embodiment is 6×6m ² , the steel plate thickness of the bottom formwork 1 is 2cm, the size of the side formwork is 5.5m in length, 0.25m in width, and 24cm in height. Tight positioning. Based on the side formwork, draw the size of the special-shaped formwork, move each side formwork inward according to the size of the special-shaped plate, and fix it with a magnetic box after it is in place. Adjustable support rods (screw rods) are installed on the four sides to prevent the side formwork from tilting and fine-tune the size of the special-shaped plate. On the upper part of the bottom template, a layer of flexible silicone mold with surface texture is arranged to construct the texture on the surface of the pavement.

After the mold is positioned, it is sprayed with a release agent (Sichuan Tianfu Release Material Factory TF-10 type release agent). Then adjust the positioning frame according to the position of the embedded parts in the special-shaped plate, and install the embedded parts at the corresponding positions on the positioning frame. After the embedded parts are installed, the steel skeleton is installed inside the mold. Lift and level the components with a jack, and use reinforcement mesh around the grouting pipe for reinforcement.

The material is distributed in the mold, and the vibrating pump installed on the mold is used to vibrate and compact the concrete. After the concrete is cured, the fixing device is disassembled, the concrete slab is demoulded, and the hoisting device is installed, and the special lifting tool is used to lift it.

After the prefabrication of the pavement is completed, the length of the side is measured with a steel tape, and the surface of the pavement is measured with a level, which all meet the requirements of the project. The deviation between the position of the embedded components and the drawing shall not exceed 2mm.

It can be seen that the prefabricated cement concrete paving slab mold provided by the utility model has the characteristics of simple construction and accurate positioning, and can accurately complete the prefabrication of special-shaped slabs, greatly improving the construction efficiency of the prefabricated cement concrete paving slab.

To sum up, the utility model effectively overcomes various shortcomings in the prior art and has high industrial application value.

The above-mentioned embodiments only illustrate the principles and effects of the present utility model, but are not intended to limit the present utility model. Anyone familiar with this technology can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the utility model should still be covered by the claims of the utility model.

Claims (10)

1. a kind of assembled cement concrete paving board mold, which is characterized in that including end template (1), on the end template (1) If there are three the above side template (2), the side template (2) extends along the upper surface of end template (1), each side template (2) it Between to be sequentially connected to be formed with side template (2) be side wall, with the upper open space that end template (1) is bottom surface, each side template (2) be equipped on it is one or more with end template (1) material is matched is opened and closed magnetic mount (3), each side template (2) The edge of the corresponding end template (1) of outer wall pass through one or more telescopic fixing rods (4) connection, it is described open empty Between top be additionally provided with one or more locating racks (5), the both ends of the locating rack (5) the removably side with end template (1) Edge is connected.

2. assembled cement concrete paving board mold as described in claim 1, which is characterized in that on the side template (2) It is additionally provided with side template extension (22).

3. assembled cement concrete paving board mold as described in claim 1, which is characterized in that the material of end template (1) Selected from steel, the material of side template (2) is selected from steel and/or plastics.

4. assembled cement concrete paving board mold as described in claim 1, which is characterized in that between each side template (2) Junction be equipped with sealing element (21), the end template (1) and/or side template (2) are equipped with suspender member (6).

5. assembled cement concrete paving board mold as described in claim 1, which is characterized in that the middle part of side template (2) It is connect with one end of another side template (2), is detachably to connect between telescopic fixing rod and end template (1) and/or side template (2) It connects.

6. assembled cement concrete paving board mold as described in claim 1, which is characterized in that the end template (1) Upper surface is additionally provided with flexible layer (7), and the flexible layer (7) is located between end template (1) and side template (2), the flexible layer (7) Upper surface be equipped with texture.

7. assembled cement concrete paving board mold as described in claim 1, which is characterized in that the end template (1) Upper surface is plane, and the inner wall of the side template (2) is plane, the inner wall of the upper surface and side template (2) of the end template (1) Between angle be 80-90 °.

8. assembled cement concrete paving board mold as claimed in claim 6, which is characterized in that including four side templates (2), to which Formation cross-section is the upper open space of quadrangle.

9. assembled cement concrete paving board mold as described in claim 1, which is characterized in that the end template (1) Lower section is equipped with bearing (8), and the bearing (8) includes support body (81) and the height adjustment device for adjusting height of support (82)。

10. assembled cement concrete paving board mold as described in claim 1, which is characterized in that it is more than two fixed to be equipped with Position frame (5), the locating rack (5) are uniformly distributed in above the upper open space.