Prestressed prefabricated reinforced concrete road plate and preparation method thereof

Abstract

The invention provides a pre-stressed prefabricated reinforced concrete road slab and a preparation method thereof, and relates to the technical field of shortcut slabs, the pre-stressed prefabricated reinforced concrete road slab comprises a shortcut slab assembly, the side surface of the shortcut slab assembly is provided with a splicing assembly, the top of the shortcut slab assembly is provided with a limiting assembly, the inside of the shortcut slab assembly is provided with an inner support assembly, and the inner support assembly is connected with the splicing assembly. The shortcut plate assembly comprises a shortcut plate, a plurality of tenons are arranged on one side of the shortcut plate, and a plurality of grooves are formed in the other side of the shortcut plate. The tenons and the grooves are connected in an interlocking mode, installation and splicing of the shortcut plate assemblies are facilitated, meanwhile, the limiting strips are installed in the limiting grooves in a matched mode, the stability of splicing and installation of the shortcut plate assemblies is guaranteed, the situations of dislocation, looseness and the like of the shortcut plate assemblies are avoided, then the installation precision is improved, and the service life of the shortcut plate assemblies is prolonged. Therefore, accurate butt joint is achieved, the stability of the connecting part can be improved when the shortcut plate assembly is connected, and the overall stability of the shortcut plate assembly is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sidewalk slabs, and in particular to a prestressed prefabricated reinforced concrete road slab and a preparation method thereof. Background Art

[0002] With the continuous development of prefabricated construction technology, prefabricated components are increasingly used in the construction field. Prefabricated components have the advantages of standardized production, controllable quality, fast construction speed, energy saving and environmental protection, which provide technical support for the emergence of prestressed prefabricated reinforced concrete road slabs and their preparation methods.

[0003] When existing sidewalk slabs are used, they are usually installed in a simple splicing manner, which easily leads to loose connections of the sidewalk slabs, and then loosening, misalignment, etc., resulting in inconvenience in use. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that sidewalk slabs are usually installed in a simple splicing manner when in use, which easily leads to loose connections of the sidewalk slabs, and then loosening, misalignment, etc., resulting in inconvenience in use, and a prestressed prefabricated reinforced concrete road slab and a preparation method thereof are proposed.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a prestressed prefabricated reinforced concrete road slab, including a sidewalk slab assembly, a splicing assembly is arranged on the side of the sidewalk slab assembly, a limiting assembly is arranged on the top of the sidewalk slab assembly, an inner support assembly is arranged inside the sidewalk slab assembly, the sidewalk slab assembly includes a sidewalk slab body, a plurality of tenons are arranged on one side of the sidewalk slab body, a plurality of grooves are opened on the other side of the sidewalk slab body, the splicing assembly includes a limiting strip, the limiting strip is installed on both sides of the tenon, limiting grooves are opened on both sides of the groove, and the limiting strip is installed inside the limiting groove.

[0006] Furthermore, the limiting assembly includes an upper hook and a lower hook installed on the upper surface of the sidewalk board body, the upper hook and the lower hook are respectively arranged on both sides of the upper surface of the sidewalk board body, one end of the upper hook and the lower hook are installed with an axis rod, and the upper hook and the lower hook are each provided with two groups, and the two groups of upper hooks and lower hooks are symmetrically arranged in pairs, and sliding grooves are symmetrically opened on the top of the sidewalk board body, and the limiting plate is slidably connected inside the sliding grooves.

[0007] Furthermore, the inner support assembly includes a plurality of vertical steel bars and transverse steel bars, and the transverse steel bars and vertical steel bars are distributed in a staggered manner.

[0008] Furthermore, a plurality of prestressed channels are opened inside the main body of the walkway board, prestressed steel wires are passed through the inside of the prestressed channels, reserved holes are opened at both ends of the main body of the walkway board, soft pads are installed at the four corners of the main body of the walkway board, and angle steels are installed on the outer sides of the soft pads.

[0009] Another technical solution proposed by the present invention is to provide a method for preparing a prestressed prefabricated reinforced concrete road slab, comprising the following steps:

[0010] S1: Control the lifting structure to install the mold in the mold structure in the preparation device, then place the inner support assembly in the mold, align the inner support assembly with the inner wall of the mold, and then introduce concrete raw materials into the mold. After the concrete fills the mold, use a vibration device to remove bubbles in the concrete to complete the pouring work;

[0011] S2: After the vibration is over, the slotting mold inside the mold structure is adjusted to reserve a slot on the surface of the concrete slab. The scraping structure is used to scrape off the excess uneven concrete on the mold surface. Then, the lifting structure is used to drive the hole-opening mold downward to open a hole at the corresponding position of the concrete to complete the slotting work.

[0012] S3: Estimate the forming time of the concrete slab according to the actual temperature and air humidity. After the concrete slab is formed, control the lifting structure to descend and fix it on the outside of the mold, drive the mold to rise and separate from the concrete slab, and then use other handling equipment to take out the formed concrete slab to complete the preparation work.

[0013] Further, in S1, the preparation device includes an outer base, a mold frame is arranged inside the outer base, a mold block is fixedly connected to the inner wall of the mold frame, a mounting seat is fixedly connected to one side of the outer base, a mounting platform is fixedly connected to one side of the mounting seat, an electric lifting plate is fixedly connected to the upper surface of the mounting platform, two groups of the electric lifting plates are arranged symmetrically, the electric lifting plates penetrate the mounting platform, a hole-making component for opening a hole is arranged on one side of the electric lifting plate, and a slotting component for slotting is arranged inside the mold block;

[0014] The opening component includes a liquid storage box fixedly connected to the bottom surface of the mounting table, a release agent is arranged inside the liquid storage box, an outer tube is fixedly connected to the bottom surface of the liquid storage box, an inner tube is slidably connected to the bottom of the outer tube, a sealing plate is fixedly connected to the top of the inner tube, the sealing plate is slidably connected to the inside of the outer tube and fits with the inner wall of the outer tube, a one-way pressure valve A is arranged at the connection between the outer tube and the liquid storage box, a mounting short plate is fixedly connected to one side of the electric lifting plate, the inner tube is fixedly connected to the upper surface of the mounting short plate, an inner groove B is opened inside the mounting short plate, the inner groove B is connected to the inside of the inner tube, a limit plate is arranged inside the inner groove B, and a plug rod is fixedly connected to the bottom surface of the limit plate.

[0015] Furthermore, the slotting component includes a vertical frame fixedly connected to the inner wall of the mold block, a movable block is slidably connected inside the vertical frame, a top block is fixedly connected to the upper surface of the movable block, mounting frames A are fixedly connected on both sides of the movable block, side grooves are provided on both sides of the mounting seat, slotted blocks are slidably connected inside the side grooves, a mounting plate B is fixedly connected to one side of the slotted block close to the movable block, the mounting frame A and the inner walls of the mounting plate B are fixedly connected to connecting short rods, and inclined plates are sleeved on the outside of the connecting short rods.

[0016] Furthermore, transverse grooves are provided on both sides of the outer base, and inner grooves A are provided on one side of the transverse grooves. A push block is slidably connected inside the transverse grooves, and a short block is fixedly connected on one side of the push block. The short block is slidably connected to the inner groove A, and a magnetic plate A is fixedly connected on one side of the short block. A clamping groove is provided on the inner wall of the outer base, and the clamping groove is correspondingly arranged to the mold block. A compression groove is provided on one side of the mold block, and a spring is fixedly connected to the inner wall of the compression groove. A clamping block is fixedly connected to one end of the spring, and the clamping block is slidably connected to the inside of the compression groove. A magnetic plate B is fixedly connected on one side of the clamping block, and the magnetic plate A and the magnetic plate B are magnetically attracted to each other. A corresponding groove is provided on one side of the mold frame, and the corresponding groove and the clamping block are correspondingly arranged.

[0017] Furthermore, a vibration base plate is fixedly connected to the bottom surface of the outer base, and a vibration component for vibrating concrete is arranged inside the vibration base plate. The vibration component includes a motor fixedly connected to one side of the vibration base plate, a rotating shaft is fixedly connected to the output end of the motor, an eccentric block is fixedly connected to the outer side of the rotating shaft, the eccentric block is fitted with the inner wall of the vibration base plate, and a vibrator is fixedly connected to the outer side of the mounting seat.

[0018] Furthermore, a scraping component for scraping off excess concrete is provided inside the mounting seat. The scraping component includes an electric telescopic rod provided inside the mounting seat, one end of the electric telescopic rod passes through one side of the mounting seat and is fixedly connected to a long plate, a scraper is fixedly connected to the bottom surface of the long plate, a discharge plate is hingedly provided on one side of the outer base, and a collection frame is fixedly connected to one side of the discharge plate.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are:

[0020] 1. In the present invention, the tenon and the groove are interlocked to facilitate the installation and splicing of the sidewalk board assembly. At the same time, the limit strip is installed inside the limit groove, which is beneficial to ensure the stability of the splicing and installation of the sidewalk board assembly, avoid the misalignment and loosening of the sidewalk board assembly, and thus help to improve the installation accuracy, thereby achieving precise docking, which is beneficial to increase the stability of the connecting parts when the sidewalk board assembly is connected, improve the overall stability of the sidewalk board assembly, and thus improve the convenience of use of the sidewalk board assembly. There is no need to frequently adjust the position, which ensures the structural stability of the sidewalk board assembly, and thus extends the service life of the sidewalk board assembly. At the same time, it is convenient for operators to quickly install and splice the sidewalk board assembly without repeated adjustments, shortening the construction period and thus improving construction efficiency.

[0021] 2. In the present invention, the upper hook is driven to hook with the lower hook by rotating the rotating shaft, which is beneficial to ensure the stability and reliability of the splicing of the sidewalk board assembly, further avoiding the displacement of the sidewalk board assembly due to external force during use, and improving the safety and reliability of the use of the sidewalk board assembly. Then, by moving the limit plate inside the slide groove, the limit plate is beneficial to provide a limiting effect for the hooks of the upper hook and the lower hook, avoiding the upper hook and the lower hook from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of the prestressed prefabricated reinforced concrete road slab proposed by the present invention;

[0023] Figure 2 Another structural schematic diagram of the prestressed prefabricated reinforced concrete road slab proposed by the present invention;

[0024] Figure 3 A schematic diagram of the partial decomposition structure of the prestressed prefabricated reinforced concrete road slab proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the prestressed prefabricated reinforced concrete road slab proposed by the present invention;

[0026] Figure 5 A schematic diagram of a device for preparing a prestressed prefabricated reinforced concrete road slab proposed by the present invention;

[0027] Figure 6 A schematic diagram of the structure of the opening component of the preparation device proposed by the present invention;

[0028] Figure 7 A schematic diagram of the internal structure of the opening component proposed by the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the slotted component proposed by the present invention;

[0030] Fig. 9 This is a schematic diagram of the mold frame structure proposed by the present invention;

[0031] Fig.10 This is a schematic diagram of the internal structure of the mold frame proposed by the present invention;

[0032] Fig.11 This is a schematic diagram of the structure of the scraper component proposed by the present invention;

[0033] Fig.12 This is a schematic diagram of the structure of the oscillating component proposed in the present invention.

[0034] Legend: 1. Pedestrian board assembly; 101. Pedestrian board body; 102. Tenon; 103. Groove; 104. Prestressed hole; 105. Prestressed steel wire; 106. Reserved hole; 107. Cushion; 108. Angle steel; 2. Splicing assembly; 201. Limiting strip; 202. Limiting groove; 3. Limiting assembly; 301. Upper hook; 302. Lower hook; 303. Limiting plate; 304, slide; 4, inner support assembly; 401, horizontal steel bar; 402, vertical steel bar; 5, outer base; 501, vibration bottom plate; 5011, discharge plate; 502, mold frame; 503, mold block; 504, horizontal groove; 505, inner groove A; 506, push block; 507, short block; 508, clamping groove; 509, magnetic plate A; 510, compression groove; 511, spring; 512 , block; 513, magnetic plate B; 514, corresponding slot; 6, mounting seat; 601, mounting table; 602, vibrator; 603, electric lifting plate; 604, opening component; 605, liquid storage box; 606, outer tube; 607, installation short plate; 608, plug rod; 609, one-way pressure valve A; 610, inner tube; 611, sealing plate; 612, one-way pressure valve B; 613, inner Slot B; 614, limit plate; 7, slotted component; 701, top block; 702, movable block; 703, vertical frame; 704, mounting frame A; 705, inclined plate; 706, mounting plate B; 707, slotted block; 8, scraper component; 801, electric telescopic rod; 802, long board; 803, scraper; 9, oscillating component; 901, motor; 902, rotating shaft; 903, eccentric block. DETAILED DESCRIPTION

[0035] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0037] Embodiment 1

[0038] like Figure 1-Figure 4As shown, the present invention provides a technical solution: a prestressed prefabricated reinforced concrete road slab, comprising a sidewalk slab assembly 1, a splicing assembly 2 is arranged on the side of the sidewalk slab assembly 1, a limiting assembly 3 is arranged on the top of the sidewalk slab assembly 1, an inner support assembly 4 is arranged inside the sidewalk slab assembly 1, the sidewalk slab assembly 1 comprises a sidewalk slab body 101, a plurality of tenons 102 are arranged on one side of the sidewalk slab body 101, a plurality of grooves 103 are opened on the other side of the sidewalk slab body 101, the splicing assembly 2 comprises a limiting strip 201, the limiting strip 201 is installed on both sides of the tenon 102, limiting grooves 202 are opened on both sides of the groove 103, the limiting strip 201 is installed inside the limiting groove 202, the inner support assembly 4 comprises a plurality of vertical steel bars 402 and transverse steel bars 401, and the transverse steel bars 401 and the vertical steel bars 402 are staggered.

[0039] In this embodiment, when the sidewalk board assembly 1 is spliced ​​and installed, the tenon 102 is locked with the groove 103, which facilitates the installation and splicing of the sidewalk board assembly 1. At the same time, the limit strip 201 is installed inside the limit groove 202, which is beneficial to ensure the stability of the splicing and installation of the sidewalk board assembly 1, avoids the misalignment and looseness of the sidewalk board assembly 1, and is beneficial to improve the installation accuracy, thereby achieving precise docking, and is beneficial to increase the stability of the connecting part when the sidewalk board assembly 1 is connected, improve the overall stability of the sidewalk board assembly 1, and thus improve The convenience of using the sidewalk board assembly 1 is improved, and there is no need to frequently adjust the position, which ensures the structural stability of the sidewalk board assembly 1, thereby extending the service life of the sidewalk board assembly 1, and at the same time facilitates the operator to quickly install and splice the sidewalk board assembly 1 without repeated adjustments, shortening the construction period, thereby improving the construction efficiency, and the staggered distribution of the double layers of transverse steel bars 401 and vertical steel bars 402 is beneficial to increase the bending resistance of the sidewalk board assembly 1, thereby improving the bearing capacity of the sidewalk board assembly 1 and extending the service life of the sidewalk board assembly 1.

[0040] like Figure 1-Figure 4 As shown, the limiting assembly 3 includes a plurality of upper hooks 301, which are installed on one side of the top of the walkway board body 101, and a plurality of lower hooks 302 are distributed on the other side of the top of the walkway board body 101, and an axle rod is installed at one end of the upper hook 301 and the lower hook 302, and a plurality of slide grooves 304 are symmetrically opened on the top of the walkway board body 101, and a limiting plate 303 is movably installed inside the slide groove 304, and a plurality of prestressed channels 104 are opened inside the walkway board body 101, and a prestressed steel wire 105 runs through the inside of the prestressed channels 104, and a plurality of reserved holes 106 are opened at both ends of the walkway board body 101, and soft pads 107 are installed at the four corners of the walkway board body 101, and angle steels 108 are installed on the outer side of the soft pads 107.

[0041] In this embodiment, when the pavement board assembly 1 is spliced, the shaft rod is rotated to drive the upper hook 301 to hook with the lower hook 302, which is beneficial to ensure the stability and reliability of the pavement board assembly 1 splicing, and further avoids the pavement board assembly 1 from shifting due to external force during use, thereby improving the safety and reliability of using the pavement board assembly 1. Then, by moving the limit plate 303 to move inside the slide groove 304, the limit plate 303 is beneficial to provide a limit effect for the hooks of the upper hook 301 and the lower hook 302, thereby avoiding the upper hook 301 and the lower hook 302 from loosening. A plurality of prestressed channels 104 are provided inside the pavement board body 101 for the pavement The insertion of the prestressed steel wire 105 after the assembly of the board component 1 enhances the integrity and deformation resistance of the sidewalk board component 1. Soft pads 107 are installed at the four corners of the sidewalk board body 101, and angle steel 108 is installed on the outer side of the soft pads 107. The soft pads 107 are beneficial to reducing the friction between the angle steel 108 and the sidewalk board body 101, and are beneficial to providing flexible buffering protection. The angle steel 108 reduces collision damage during installation and use. The joints of the sidewalk board body 101 use 5 mm wide rubber waterproofing to effectively prevent the infiltration of rainwater and road cleaning water, maintain the stability of the roadbed or foundation, and increase the service life. The reserved holes 106 are used for the installation and use of safety guardrails.

[0042] Working principle: When in use, first, when splicing and installing the sidewalk board assembly 1, the tenon 102 is locked with the groove 103, which is convenient for the installation and splicing of the sidewalk board assembly 1, and at the same time, the limit strip 201 is installed inside the limit groove 202, which is conducive to ensuring the stability of the splicing and installation of the sidewalk board assembly 1. When the sidewalk board assembly 1 is spliced, the shaft rod is rotated to drive the upper hook 301 to hook with the lower hook 302, which is conducive to ensuring the stability and reliability of the splicing of the sidewalk board assembly 1. Then, by moving the limit plate 303 to move inside the slide groove 304, the limit plate 303 is conducive to providing a limiting effect for the hooks of the upper hook 301 and the lower hook 302. During use, the horizontal steel bar 401 and the vertical steel bar 402 The staggered distribution of the two layers is beneficial to increase the bending resistance of the sidewalk board assembly 1. A plurality of prestressed channels 104 are opened inside the sidewalk board body 101 for the insertion of prestressed steel wires 105 after the sidewalk board assembly 1 is assembled, thereby enhancing the integrity and deformation resistance of the sidewalk board assembly 1. The soft pad 107 is beneficial to reducing the friction between the angle steel 108 and the sidewalk board body 101, thereby providing flexible buffering protection. The angle steel 108 reduces collision damage during installation and use. A 5 mm wide rubber waterproofing is used at the joints of the sidewalk board body 101 to effectively prevent the infiltration of rainwater and road cleaning water, maintain the stability of the roadbed or foundation, and increase the service life. The reserved hole 106 is used for the installation and use of safety guardrails.

[0043] Embodiment 2

[0044] Combination Figure 5-Figure 12 As shown, the following preferred technical solutions are provided:

[0045] The present invention provides a method for preparing a prestressed prefabricated reinforced concrete road slab, comprising the following steps:

[0046] S1: Control the lifting structure to install the mold in the mold structure in the preparation device, then place the inner support assembly 4 in the mold, align the inner support assembly 4 with the inner wall of the mold, and then introduce concrete raw materials into the mold. After the concrete fills the mold, use a vibration device to remove bubbles in the concrete to complete the pouring work;

[0047] S2: After the vibration is over, the slotting mold inside the mold structure is adjusted to reserve a slot on the surface of the concrete slab. The scraping structure is used to scrape off the excess uneven concrete on the mold surface. Then, the lifting structure is used to drive the hole-opening mold downward to open a hole at the corresponding position of the concrete to complete the slotting work.

[0048] S3: Estimate the forming time of the concrete slab according to the actual temperature and air humidity. After the concrete slab is formed, control the lifting structure to descend and fix it on the outside of the mold, drive the mold to rise and separate from the concrete slab, and then use other handling equipment to take out the formed concrete slab to complete the preparation work.

[0049] Further, in S1, the preparation device includes an outer base 5, a mold frame 502 is arranged inside the outer base 5, a mold block 503 is fixedly connected to the inner wall of the mold frame 502, a mounting seat 6 is fixedly connected to one side of the outer base 5, a mounting platform 601 is fixedly connected to one side of the mounting seat 6, an electric lifting plate 603 is fixedly connected to the upper surface of the mounting platform 601, two groups of the electric lifting plates 603 are arranged, the two groups of the electric lifting plates 603 are symmetrically arranged, the electric lifting plates 603 pass through the mounting platform 601, a hole-making component 604 for making a hole is arranged on one side of the electric lifting plates 603, and a slotting component 7 for making a slot is arranged inside the mold block 503;

[0050] The opening component 604 includes a liquid storage box 605 fixedly connected to the bottom surface of the mounting platform 601, a release agent is arranged inside the liquid storage box 605, an outer tube 606 is fixedly connected to the bottom surface of the liquid storage box 605, an inner tube 610 is slidably connected to the bottom of the outer tube 606, a sealing plate 611 is fixedly connected to the top of the inner tube 610, the sealing plate 611 is slidably connected to the inside of the outer tube 606 and fits with the inner wall of the outer tube 606, a one-way pressure valve A609 is arranged at the connection between the outer tube 606 and the liquid storage box 605, a mounting short plate 607 is fixedly connected to one side of the electric lifting plate 603, the inner tube 610 is fixedly connected to the upper surface of the mounting short plate 607, an inner groove B613 is arranged inside the mounting short plate 607, the inner groove B613 is connected to the inside of the inner tube 610, a limiting disk 614 is arranged inside the inner groove B613, and a plug rod is fixedly connected to the bottom surface of the limiting disk 614 608. When placing the mold frame 502, the electric lifting plate 603 is used to move downward with the mold frame 502. After the installation is completed, the electric lifting plate 603 moves upward, and concrete is injected into the mold frame 502. During the upward movement of the electric lifting plate 603, the inner tube 610 is driven to move upward, and the air inside the outer tube 606 is squeezed by the sealing plate 611, so that the internally stored release agent flows into the inner tube 610 through the one-way pressure valve B612, and the release agent flows downward through the inner groove B613 and the limit plate 614, so that the release agent adheres to the surface of the insertion rod 608. Subsequently, the insertion rod 608 moves downward to open a hole for the concrete slab, and the release agent facilitates the subsequent removal of the insertion rod 608. At the same time, when the inner tube 610 moves downward, the release agent inside the liquid storage box 605 is replenished into the outer tube 606 through the one-way pressure valve A609.

[0051] Furthermore, the slotting component 7 includes a vertical frame 703 fixedly connected to the inner wall of the mold block 503, a movable block 702 is slidably connected inside the vertical frame 703, a top block 701 is fixedly connected to the upper surface of the movable block 702, mounting frames A704 are fixedly connected on both sides of the movable block 702, side grooves are provided on both sides of the mounting seat 6, slotting blocks 707 are slidably connected inside the side grooves, a mounting plate B706 is fixedly connected to the side of the slotting block 707 close to the movable block 702, the mounting frame A704 and the inner walls of the mounting plate B706 are fixedly connected with connecting short rods, and the outer sides of the connecting short rods are sleeved with inclined plates 705. When slotting, the top block 701 is pressed by hand, and the top block 701 drives the movable block 702 to move downward, and the inclined plate 705 tilts accordingly, driving the slotting block 707 to move to both sides, thereby squeezing the concrete to slot, and the top block 701 is pulled out and reset after molding.

[0052] Furthermore, transverse grooves 504 are provided on both sides of the outer base 5, and inner grooves A505 are provided on one side of the transverse grooves 504. Push blocks 506 are slidably connected inside the transverse grooves 504, and short blocks 507 are fixedly connected on one side of the push blocks 506. The short blocks 507 are slidably connected to the inner grooves A505, and a magnetic plate A509 is fixedly connected on one side of the short blocks 507. A clamping groove 508 is provided on the inner wall of the outer base 5, and the clamping groove 508 is arranged corresponding to the mold block 503. A compression groove 510 is provided on one side of the mold block 503, and a spring 511 is fixedly connected to the inner wall of the compression groove 510. A clamping block 512 is fixedly connected to one end of the spring 511, and the clamping block 512 is slidably connected to the inside of the compression groove 510, and a magnetic plate B51 is fixedly connected on one side of the clamping block 512. 3. The magnetic plate A509 and the magnetic plate B513 are magnetically attracted to each other. A corresponding groove 514 is provided on one side of the mold frame 502. The corresponding groove 514 is arranged corresponding to the clamping block 512. When the mold block 503 is used to clamp the mold frame 502 and move it, the clamping block 512 is ejected to the outside of the compression groove 510 under the elastic force of the spring 511 itself, and the clamping block 512 is inserted into the corresponding groove 514 for fixing. When the installation of the mold frame 502 is completed and the electric lifting plate 603 needs to be moved upward, the sliding push block 506 and the short block 507 are used to make the magnetic plate A509 correspond to the clamping block 512. The magnetic plate A509 and the magnetic plate B513 are attracted to each other to drive the clamping block 512 to shrink inside the compression groove 510, so that the electric lifting plate 603 can be raised and lowered.

[0053] Furthermore, a vibration base plate 501 is fixedly connected to the bottom surface of the outer base 5, and a vibration component 9 for vibrating concrete is arranged inside the vibration base plate 501. The vibration component 9 includes a motor 901 fixedly connected to one side of the vibration base plate 501, and a rotating shaft 902 is fixedly connected to the output end of the motor 901. An eccentric block 903 is fixedly connected to the outer side of the rotating shaft 902. The eccentric block 903 is in contact with the inner wall of the vibration base plate 501. A vibrator 602 is fixedly connected to the outer side of the mounting seat 6. During the process of pouring cement soil, the motor 901 is turned on, and the motor 901 drives the rotating shaft 902 and the eccentric block 903 to rotate, knocking on the inner wall of the vibration base plate 501 to knock out the bubbles in the concrete inside the mold frame 502, and at the same time cooperating with the vibrator 602 to further vibrate the concrete.

[0054] Furthermore, a scraper component 8 for scraping off excess concrete is provided inside the mounting seat 6. The scraper component 8 includes an electric telescopic rod 801 provided inside the mounting seat 6, one end of the electric telescopic rod 801 passes through one side of the mounting seat 6 and is fixedly connected to a long plate 802, a scraper 803 is fixedly connected to the bottom surface of the long plate 802, a discharge plate 5011 is hinged on one side of the outer base 5, and a collection frame is fixedly connected to one side of the discharge plate 5011. After the concrete pouring is completed, the electric telescopic rod 801 is turned on to drive the long plate 802 and the scraper 803 to move, thereby scraping off excess concrete on the surface, and the excess concrete is discharged into the collection frame. After the concrete slab is formed, the discharge plate 5011 is opened and the concrete slab is taken out using other devices.

[0055] Working principle: When preparing, first place the mold frame 502, and let the block 512 pop out to the outside of the compression groove 510 under the elastic force of the spring 511 itself, and use the block 512 to snap into the corresponding groove 514 for fixation, and use the electric lifting plate 603 to move downward with the mold frame 502. After the installation is completed, slide the push block 506 and the short block 507, and make the magnetic plate A509 correspond to the block 512. Use the magnetic plate A509 and the magnetic plate B513 to attract each other, so as to drive the block 512 to shrink in the compression The electric lifting plate 603 is then retracted upwards, and concrete is then injected into the mold frame 502. During the upward movement of the electric lifting plate 603, the inner tube 610 is driven to move upwards, and the air inside the outer tube 606 is squeezed by the sealing plate 611, so that the mold release agent stored inside flows into the inner tube 610 through the one-way pressure valve B612, and flows downwards through the inner groove B613 and the limit plate 614, so that the mold release agent adheres to the surface of the insertion rod 608, and then Then, the top block 701 is pressed by hand, and the top block 701 drives the movable block 702 to move downward, and the inclined plate 705 tilts accordingly, driving the slotting block 707 to move to both sides, thereby squeezing the concrete to slot. During the pouring process, the motor 901 is turned on, and the motor 901 drives the rotating shaft 902 and the eccentric block 903 to rotate, knocking the inner wall of the vibration bottom plate 501 to knock out the bubbles in the concrete inside the mold frame 502, and at the same time cooperating with the vibrator 602 to further vibrate the concrete. After the concrete is poured, the electric telescopic rod 801 is turned on to drive the long plate 802 and the scraper 803 to move, so as to scrape off the excess concrete on the surface, and the excess concrete is discharged into the collection frame. Subsequently, the electric lifting plate 603 is used to drive the insertion rod 608 to move downward to open a hole for the concrete slab. When the inner tube 610 moves downward, the release agent inside the liquid storage box 605 is replenished into the outer tube 606 through the one-way pressure valve A609. After the concrete slab is formed, the discharge plate 5011 is opened and other devices are used to take out the concrete slab.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A prestressed prefabricated reinforced concrete road slab, comprising a sidewalk slab assembly (1), characterized in that: The side of the walkway board assembly (1) is provided with a splicing assembly (2), the top of the walkway board assembly (1) is provided with a limiting assembly (3), the interior of the walkway board assembly (1) is provided with an inner support assembly (4), the walkway board assembly (1) comprises a walkway board body (101), one side of the walkway board body (101) is provided with a plurality of tenons (102), the other side of the walkway board body (101) is provided with a plurality of grooves (103), the splicing assembly (2) comprises a limiting strip (201), the limiting strip (201) is installed on both sides of the tenon (102), both sides of the groove (103) are provided with limiting grooves (202), and the limiting strip (201) is installed inside the limiting groove (202).

2. The prestressed prefabricated reinforced concrete road slab according to claim 1, characterized in that: The limiting assembly (3) comprises an upper hook (301) and a lower hook (302) mounted on the upper surface of the main body (101) of the walkway board. The upper hook (301) and the lower hook (302) are respectively arranged on both sides of the upper surface of the main body (101) of the walkway board. One end of the upper hook (301) and the lower hook (302) are both installed with an axle rod. The upper hook (301) and the lower hook (302) are each provided with two groups. The two groups of the upper hooks (301) and the lower hooks (302) are symmetrically arranged in pairs. The top of the walkway board main body (101) is symmetrically provided with a slide groove (304), and the slide groove (304) is slidably connected to the limiting plate (303) inside.

3. The prestressed prefabricated reinforced concrete road slab according to claim 1, characterized in that: The inner support assembly (4) comprises a plurality of vertical steel bars (402) and transverse steel bars (401), and the transverse steel bars (401) and the vertical steel bars (402) are distributed in a staggered manner.

4. The prestressed prefabricated reinforced concrete road slab according to claim 1, characterized in that: A plurality of prestressed channels (104) are provided inside the main body (101) of the walkway board, and prestressed steel wires (105) are passed through the inside of the prestressed channels (104). Reserved holes (106) are provided at both ends of the main body (101) of the walkway board, and soft pads (107) are installed at the four corners of the main body (101), and angle steels (108) are installed on the outer sides of the soft pads (107).

5. A method for preparing a prestressed prefabricated reinforced concrete road slab according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1: Control the lifting structure to install the mold in the mold structure in the preparation device, then place the inner support assembly (4) in the mold, align the inner support assembly (4) with the inner wall of the mold, and then introduce concrete raw materials into the mold. After the concrete fills the mold, use a vibration device to remove bubbles in the concrete to complete the pouring work; S2: After the vibration is over, the slotting mold inside the mold structure is adjusted to reserve a slot on the surface of the concrete slab. The scraping structure is used to scrape off the excess uneven concrete on the mold surface. Then, the lifting structure is used to drive the hole-opening mold downward to open a hole at the corresponding position of the concrete to complete the slotting work. S3: Estimate the forming time of the concrete slab according to the actual temperature and air humidity. After the concrete slab is formed, control the lifting structure to descend and fix it on the outside of the mold, drive the mold to rise and separate from the concrete slab, and then use other handling equipment to take out the formed concrete slab to complete the preparation work.

6. The method for preparing a prestressed prefabricated reinforced concrete road slab according to claim 5, characterized in that: In S1, the preparation device comprises an outer base (5), a mold frame (502) is arranged inside the outer base (5), a mold block (503) is fixedly connected to the inner wall of the mold frame (502), a mounting seat (6) is fixedly connected to one side of the outer base (5), a mounting platform (601) is fixedly connected to one side of the mounting seat (6), an electric lifting plate (603) is fixedly connected to the upper surface of the mounting platform (601), two groups of the electric lifting plates (603) are arranged symmetrically, the electric lifting plates (603) penetrate the mounting platform (601), a hole-making component (604) for making a hole is arranged on one side of the electric lifting plates (603), and a slotting component (7) for making a slot is arranged inside the mold block (503); The opening component (604) comprises a liquid storage box (605) fixedly connected to the bottom surface of the mounting platform (601), a release agent is arranged inside the liquid storage box (605), an outer tube (606) is fixedly connected to the bottom surface of the liquid storage box (605), an inner tube (610) is slidably connected to the bottom of the outer tube (606), a sealing plate (611) is fixedly connected to the top of the inner tube (610), the sealing plate (611) is slidably connected to the inside of the outer tube (606) and fits with the inner wall of the outer tube (606), and the outer tube (606) is slidably connected to the inner tube (610). A one-way pressure valve A (609) is provided at the connection point of the liquid storage box (605); a mounting short plate (607) is fixedly connected to one side of the electric lifting plate (603); the inner tube (610) is fixedly connected to the upper surface of the mounting short plate (607); an inner groove B (613) is provided inside the mounting short plate (607); the inner groove B (613) is connected to the inside of the inner tube (610); a limit plate (614) is provided inside the inner groove B (613); and a plug rod (608) is fixedly connected to the bottom surface of the limit plate (614).

7. The method for preparing a prestressed prefabricated reinforced concrete road slab according to claim 6, characterized in that: The slotted component (7) comprises a vertical frame (703) fixedly connected to the inner wall of the mold block (503), a movable block (702) being slidably connected inside the vertical frame (703), a top block (701) being fixedly connected to the upper surface of the movable block (702), mounting frames A (704) being fixedly connected to both sides of the movable block (702), side grooves being provided on both sides of the mounting seat (6), slotted blocks (707) being slidably connected inside the side grooves, a mounting plate B (706) being fixedly connected to one side of the slotted block (707) close to the movable block (702), connecting short rods being fixedly connected to the inner walls of the mounting frame A (704) and the mounting plate B (706), and inclined plates (705) being sleeved on the outer sides of the connecting short rods.

8. The method for preparing a prestressed prefabricated reinforced concrete road slab according to claim 6, characterized in that: The outer base (5) is provided with transverse grooves (504) on both sides, and an inner groove A (505) is provided on one side of the transverse groove (504). A push block (506) is slidably connected inside the transverse groove (504), and a short block (507) is fixedly connected to one side of the push block (506). The short block (507) is slidably connected to the inner groove A (505), and a magnetic plate A (509) is fixedly connected to one side of the short block (507). A clamping groove (508) is provided on the inner wall of the outer base (5), and the clamping groove (508) is arranged corresponding to the mold block (503). A compression groove (510) is provided on one side of the block (503), a spring (511) is fixedly connected to the inner wall of the compression groove (510), a clamping block (512) is fixedly connected to one end of the spring (511), the clamping block (512) is slidably connected to the inside of the compression groove (510), a magnetic plate B (513) is fixedly connected to one side of the clamping block (512), the magnetic plate A (509) and the magnetic plate B (513) are magnetically attracted to each other, and a corresponding groove (514) is provided on one side of the mold frame (502), and the corresponding groove (514) and the clamping block (512) are correspondingly arranged.

9. The method for preparing a prestressed prefabricated reinforced concrete road slab according to claim 8, characterized in that: The bottom surface of the outer base (5) is fixedly connected to a vibration base plate (501), and a vibration component (9) for vibrating concrete is arranged inside the vibration base plate (501). The vibration component (9) comprises a motor (901) fixedly connected to one side of the vibration base plate (501), a rotating shaft (902) is fixedly connected to the output end of the motor (901), an eccentric block (903) is fixedly connected to the outside of the rotating shaft (902), and the eccentric block (903) is in contact with the inner wall of the vibration base plate (501), and a vibrator (602) is fixedly connected to the outside of the mounting seat (6).

10. The method for preparing a prestressed prefabricated reinforced concrete road slab according to claim 9, characterized in that: A scraping component (8) for scraping off excess concrete is arranged inside the mounting seat (6). The scraping component (8) comprises an electric telescopic rod (801) arranged inside the mounting seat (6), one end of the electric telescopic rod (801) passes through one side of the mounting seat (6) and is fixedly connected to a long plate (802), a scraping plate (803) is fixedly connected to the bottom surface of the long plate (802), a discharge plate (5011) is hingedly connected to one side of the outer base (5), and a collection frame is fixedly connected to one side of the discharge plate (5011).

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