Mould for the preparation of prefabricated blocks for the laying of road bases

Abstract

The application relates to the technical field of road bases, and discloses a preparation mold for prefabricated base blocks used for laying road bases, which comprises a bottom plate, four side plates which are movably connected to the periphery of the bottom plate and can swing up and down, a square frame formed by the four side plates which are connected in a head-to-tail mode, and a preparation cavity with a top opening formed by the square frame and the bottom plate; the side plates are detachably connected between the adjacent side plates, the side plates are provided with facing walls arranged towards the preparation cavity, and the facing walls are provided with inner convex ribs which protrude towards the preparation cavity. In this way, the side plates are swung upwards to a set position, the adjacent side plates are fixedly connected to form the preparation cavity, the mixture for preparing the prefabricated base blocks is poured into the preparation cavity to form the prefabricated base blocks, the side plates are detached and swung to take out the prefabricated base blocks, and the inner convex ribs enable grooves for improving the strength of the road base structure to be formed on the periphery of the prefabricated base blocks.

Description

Technical Field

[0001] This invention patent relates to the technical field of road base courses, and more specifically, to prefabricated base block preparation molds used for laying road base courses. Background Technology

[0002] Road pavement structures generally consist of a surface layer, base layer, subbase layer, and subbase. Cement-stabilized crushed stone (CSPC) has historically been the most commonly used structural component for road base layers due to its superior strength, integrity, and durability. Cement-stabilized CSPC uses graded crushed stone as aggregate, a certain amount of cement as a binder, and sufficient mortar volume to fill the voids in the aggregate. It is then laid and compacted according to the interlocking principle to form the road base structure. The cement content is generally 4.5% to 6% of the mixture, and the strength typically only reaches 4.0 MPa.

[0003] In existing technologies, cement-stabilized crushed stone requires a long curing time and its strength is difficult to control. In contrast, by prefabricating base blocks in a prefabrication plant and then laying the prefabricated base blocks to form the road base, the resulting road base has high strength and greatly improves construction efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a precast block preparation mold for laying road base courses, aiming to solve the problem of long construction period for road base courses in the prior art.

[0005] The present invention is implemented as follows: a precast base block preparation mold used for laying road base includes a rectangular base plate, four side plates that can swing up and down are movably connected to the outer periphery of the base plate, the four side plates are joined end to end to form a square frame, the square frame and the base plate form a preparation cavity with a top opening; adjacent side plates are detachably connected, and each side plate has an facing wall that faces the preparation cavity, and the facing wall is provided with an inwardly protruding rib that faces the preparation cavity.

[0006] Optionally, the bottom of the side plate is hinged to the outer periphery of the base plate.

[0007] Optionally, each side of the side plate has a connecting section, and the connecting section is provided with a plurality of through mounting holes, which are spaced apart along the height direction of the side plate; the mounting holes on two adjacent connecting sections are arranged in an overlapping manner, and a clamping member is inserted through the mounting hole, and the adjacent side plates are fixedly connected by the clamping member.

[0008] Optionally, the clamping member includes a threaded rod that passes through two mounting holes, with two rotating ends arranged at intervals on the threaded rod and a gap between the two rotating ends; the rotating ends are threadedly engaged with the threaded rod, and by rotating the rotating ends, the two connecting sections abut against each other and are clamped and fixed in the gap.

[0009] Optionally, an elastic sealing strip is fixed to the outer peripheral edge of the connecting segment, and the sealing strip is compressed when the two connecting segments abut against each other.

[0010] Optionally, the base plate has an upwardly arranged surface, on which a plurality of adhesive strips are bonded and fixed, the adhesive strips being extended in a curved shape, and the plurality of adhesive strips being spaced apart on the surface.

[0011] Optionally, the inner convex rib has two horizontally extending transverse ribs and a longitudinally extending longitudinal rib. The longitudinal rib is arranged longitudinally in the middle of the side plate, and the two transverse ribs are arranged vertically at intervals. The longitudinal rib and the transverse rib are integrally formed.

[0012] Optionally, the inner convex rib is prepared from cement and crushed stone as raw materials, and the facing wall is provided with a recessed mounting groove, in which the inner convex rib is fitted and installed.

[0013] Optionally, the base plate has a water storage cavity, and the side of the base plate has a water inlet communicating with the cavity. The water inlet is connected to a water pipe. The cavity is equipped with a heating element and a controller, and the controller controls the heating element to heat. The side plate has a hollow cavity that extends through the side plate from top to bottom. A flexible hose is connected to the inner cavity, and the hose has a steam delivery pipe. The end of the hose is inserted into the hollow cavity. The upper part of the hollow cavity has an outlet for ejecting steam, which extends obliquely toward the preparation chamber along the bottom-up direction. A certain amount of water is injected into the inner cavity through a water pipe. The controller controls the heating element to heat the water, which is then heated into steam. The steam is transported upwards along the conveying pipe and the hollow cavity until it is ejected from the nozzle towards the top of the preparation cavity.

[0014] Optionally, the hollow cavity is provided with a recessed rail groove, and the end of the hose is provided with a moving head embedded in the rail groove. During the downward swing of the side plate, the moving head moves towards the nozzle along the extension direction of the rail groove; during the upward swing of the side plate, the moving head moves away from the nozzle along the extension direction of the rail groove.

[0015] Compared with the prior art, the precast base block preparation mold for laying road base provided by the present invention forms a preparation cavity by swinging the side plate upward to a set position and fixing the adjacent side plates together. Then, the mixture for preparing the precast base block is poured into the preparation cavity and cast to form the precast base block. The precast base block can be removed by disassembling the connection and swinging the side plate. Under the action of the inner convex ribs, grooves are formed on the outer periphery of the precast base block to enhance the structural strength of the road base. The precast base blocks are laid on the road with adjacent precast base blocks spaced apart and adjacent grooves aligned. By adding mortar into the gaps between the spaced blocks, the gaps and grooves are filled with mortar, resulting in a stronger overall structural strength. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the precast base block preparation mold used for laying road base provided by the present invention; Figure 2 This is a partial schematic diagram of the connecting segment provided by the present invention; Figure 3 This is a partial schematic diagram of the upward orientation provided by the present invention; Figure 4 This is a cross-sectional schematic diagram of the base plate and side plate provided by the present invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0019] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0020] Referring to Figures 1-4, the present invention provides a preferred embodiment.

[0021] The precast base block preparation mold for laying road base provided by the present invention includes a rectangular base plate 100. Four side plates 200 that can swing up and down are movably connected to the outer periphery of the base plate 100. The four side plates 200 are joined end to end to form a square frame. The square frame and the base plate 100 enclose a preparation cavity with a top opening. Adjacent side plates 200 are detachably connected. The side plates 200 have facing walls that face the preparation cavity. The facing walls are provided with inwardly protruding ribs that face the preparation cavity.

[0022] The precast base block preparation mold provided above for laying road base courses is formed by swinging the side plate 200 upward to a set position and then fixing the adjacent side plates 200 together. The mixture for preparing the precast base blocks is then poured into the preparation cavity and cast to form the precast base blocks. The precast base blocks can be removed by disassembling and swinging the side plates 200. Under the action of the inner convex ribs, grooves are formed on the outer periphery of the precast base blocks to enhance the structural strength of the road base course. The precast base blocks are laid on the road with adjacent precast base blocks spaced apart and adjacent grooves aligned. Mortar is added to the gaps between the spaced blocks, and the mortar fills the gaps and grooves, resulting in a stronger overall structure.

[0023] Specifically, by changing the shape of the side plate 200, a preparation cavity with a trapezoidal half-section that is narrow at the top and wide at the bottom or a trapezoidal half-section that is wide at the top and narrow at the bottom can be formed. The precast base blocks made from these two trapezoidal preparation cavities are arranged alternately on the paved road, and the gaps are filled with mortar, resulting in a more compact overall structure.

[0024] The bottom of the side plate 200 is hinged and fixed to the outer periphery of the base plate 100. This allows the side plate 200 to swing up and down.

[0025] The side panel 200 has connecting sections 2000 on both sides, and the connecting sections 2000 have multiple through mounting holes, which are spaced apart along the height direction of the side panel 200. The mounting holes on two adjacent connecting sections 2000 are arranged in an overlapping manner, and clamping members are inserted through the mounting holes. Adjacent side panels 200 are fixedly connected by the clamping members. This allows for quick enclosure and quick disassembly.

[0026] The clamping component includes a threaded rod passing through two mounting holes, with two rotating ends spaced apart on the threaded rod and a gap between the two rotating ends. The rotating ends are threadedly engaged with the threaded rod, and by rotating the rotating ends, the two connecting sections 2000 abut against each other and are clamped and fixed in the gap. In this way, adjacent side plates 200 can be quickly connected.

[0027] An elastic sealing strip 220 is fixed to the outer periphery of the connecting section 2000. When the two connecting sections 2000 are abutted and fixed together, the sealing strip 220 is compressed. This improves the sealing performance and prevents the mixture from flowing out before it solidifies. The sealing strip 220 can be a rubber strip 221, etc.

[0028] The base plate 100 has an upward-facing surface, on which multiple adhesive strips 221 are bonded and fixed. The adhesive strips 221 extend in a curved shape and are spaced apart on the upward-facing surface. This creates an uneven friction surface on the bottom of the precast base block, increasing the friction between it and the geogrid.

[0029] In a preferred embodiment, the inner convex rib has two horizontally extending transverse strips 211 and a longitudinally extending longitudinal strip 212. The longitudinal strip 212 is arranged longitudinally in the middle of the side plate 200, and the two transverse strips 211 are arranged vertically at intervals. The longitudinal strip 212 and the transverse strip 211 are integrally formed.

[0030] Specifically, the inner convex ribs are made from cement and crushed stone as raw materials, and have recessed mounting grooves on the wall. The inner convex ribs are installed in the mounting grooves.

[0031] In this embodiment, the base plate 100 is provided with a water storage cavity 101, and the side of the base plate 100 has a water inlet communicating with the cavity 101. The water inlet is connected to a water pipe. The cavity 101 is provided with a heating element 102 and a controller, and the controller controls the heating element 102 to heat. The side plate 200 has a hollow cavity 201 that extends through the side plate 200 from top to bottom. A flexible hose 300 is connected to the inner cavity 101. The flexible hose 300 has a steam delivery pipe and the end of the flexible hose 300 is inserted into the hollow cavity 201. The upper part of the hollow cavity 201 has a steam outlet 202 that sprays out steam. The steam outlet 202 extends obliquely toward the preparation cavity in an upward direction. A certain amount of water is injected into the inner cavity 101 through a water pipe. The controller controls the heating element 102 to heat the water, which is then turned into steam. The steam is transported upwards along the conveying pipe and the hollow cavity 201 until it is sprayed out from the nozzle 202 towards the top of the preparation cavity. In this way, by spraying steam towards the top of the preparation cavity, the steam increases the humidity around the preparation cavity and at the same time conducts a certain amount of heat into the preparation cavity, keeping the preparation cavity at the optimal solidification temperature in cold environments, which greatly improves efficiency.

[0032] The hollow cavity 201 has a recessed rail groove 203. The end of the flexible hose 300 is provided with a moving head 301 that is embedded in the rail groove 203. When the side plate 200 swings downward, the moving head 301 moves towards the nozzle 202 along the extension direction of the rail groove 203; when the side plate 200 swings upward, the moving head 301 moves away from the nozzle 202 along the extension direction of the rail groove 203. In this way, the end of the flexible hose 300 is always fixedly inserted into the hollow cavity 201 during the swinging process of the side plate 200.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mold for preparing precast base blocks used for laying road base courses, characterized in that, The device includes a rectangular base plate, on which four side plates that can swing up and down are movably connected. The four side plates are joined end to end to form a square frame. The square frame and the base plate together form a preparation cavity with a top opening. Adjacent side plates are detachably connected. Each side plate has an facing wall that faces the preparation cavity. The facing wall is provided with an inwardly protruding rib that faces the preparation cavity. The base plate has a water storage cavity, and the side of the base plate has a water inlet communicating with the cavity. The water inlet is connected to a water pipe. The cavity is equipped with a heating element and a controller, and the controller controls the heating element to heat. The side plate has a hollow cavity that extends through the side plate from top to bottom. A flexible hose is connected to the inner cavity, and the hose has a steam delivery pipe. The end of the hose is inserted into the hollow cavity. The upper part of the hollow cavity has an outlet for ejecting steam, which extends obliquely toward the preparation chamber along the bottom-up direction. A certain amount of water is injected into the inner cavity through a water pipe. The controller controls the heating element to heat the water. The heated water turns into steam. The steam is transported upward along the conveying pipe and the hollow cavity until it is sprayed out from the nozzle towards the top of the preparation cavity. The hollow cavity has a recessed rail groove, and the end of the hose has a moving head that is embedded in the rail groove. When the side plate swings downward, the moving head moves towards the nozzle along the extension direction of the rail groove; when the side plate swings upward, the moving head moves away from the nozzle along the extension direction of the rail groove.

2. The precast base block preparation mold used for laying road base as described in claim 1, characterized in that, The bottom of the side plate is hinged and fixed to the outer periphery of the base plate.

3. The precast base block preparation mold used for laying road base as described in claim 2, characterized in that, The side plate has connecting sections on both sides, and the connecting sections are provided with multiple through mounting holes. The multiple mounting holes are arranged at intervals along the height direction of the side plate. The mounting holes on two adjacent connecting sections are arranged in an overlapping manner, and clamping members are inserted through the mounting holes. The adjacent side plates are fixedly connected by the clamping members.

4. The precast base block preparation mold used for laying road base as described in claim 3, characterized in that, The clamping member includes a threaded rod that passes through two mounting holes at the front and back. Two rotating ends are arranged at intervals on the threaded rod, and there is a gap between the two rotating ends. The rotating ends are threadedly engaged with the threaded rod. By rotating the rotating ends, the two connecting sections abut against each other and are clamped and fixed in the gap.

5. The precast base block preparation mold used for laying road base layers as described in claim 4, characterized in that, An elastic sealing strip is fixed to the outer periphery of the connecting segment. When the two connecting segments abut and are fixed together, the sealing strip is compressed.

6. The precast base block preparation mold used for laying road base as described in claim 1, characterized in that, The base plate has an upward-facing surface, on which multiple adhesive strips are bonded and fixed. The adhesive strips are arranged in a curved shape and are spaced apart on the upward-facing surface.

7. The precast base block preparation mold for laying road base as described in claim 6, characterized in that, The inner convex rib has two horizontally extending transverse strips and a longitudinally extending longitudinal strip. The longitudinal strip is arranged longitudinally in the middle of the side plate, and the two transverse strips are arranged vertically at intervals. The longitudinal strip and the transverse strip are integrally formed.

8. The precast base block preparation mold for laying road base as described in claim 7, characterized in that, The inner convex rib is made of cement and crushed stone as raw materials. The facing wall has a recessed mounting groove, and the inner convex rib is installed in the mounting groove.

Images