Pre-stressed precast reinforced concrete road slab and its preparation method

Abstract

The present invention provides a prestressed prefabricated reinforced concrete road slab and a preparation method thereof, which relates to the technical field of sidewalk slabs, 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, and the sidewalk slab assembly includes a sidewalk slab, a plurality of tenons are arranged on one side of the sidewalk slab, and a plurality of grooves are opened on the other side of the sidewalk slab. The present invention facilitates the installation and splicing of the sidewalk slab assembly by interlocking the tenons and the grooves, and at the same time, the limiting strip is installed inside the limiting groove, which is conducive to ensuring the stability of the splicing and installation of the sidewalk slab assembly, avoiding the situation of dislocation and loosening of the sidewalk slab assembly, and then helping to improve the installation accuracy, thereby realizing precise docking, and helping to increase the stability of the connection part when the sidewalk slab assembly is connected, and improving the overall stability of the sidewalk slab assembly.

Description

Technical Field

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

[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 ducts are provided inside the main body of the access slab. Prestressed steel wires penetrate through the inside of the prestressed ducts. Reserved holes are provided at both ends of the main body of the access slab. Soft pads are installed at the four corners of the main body of the access slab, and angle steels are installed on the outer sides of the soft pads.

[0009] Another technical solution proposed by the present invention: providing a preparation method for a pre-stressed precast reinforced concrete road slab, comprising the following steps:

[0010] S1: Control the lifting structure to install the mold in the mold structure of the preparation device, then place the inner support assembly in the mold. After aligning the inner support assembly on the inner wall of the mold, pour the concrete raw material into the mold. After the concrete fills the mold, use the vibration device to remove the air bubbles in the concrete to complete the pouring work;

[0011] S2: After the oscillation ends, adjust the grooving mold inside the mold structure to reserve the notch on the surface of the concrete slab. Use the scraping structure to scrape off the excess and uneven concrete on the surface of the mold. Subsequently, use the lifting structure to drive the punching mold to move downwards to punch holes at the corresponding positions of the concrete to complete the grooving 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 outside 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] Furthermore, 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. One side of the outer base is fixedly connected with a mounting seat. One side of the mounting seat is fixedly connected with a mounting table. An electric lifting plate is fixedly connected to the upper surface of the mounting table. There are two groups of the electric lifting plates in total. The two groups of electric lifting plates are symmetrically arranged. The electric lifting plate penetrates through the mounting table. An opening component for punching holes is arranged on one side of the electric lifting plate. A grooving component for grooving 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 demoulding agent is arranged inside the liquid storage box. An outer pipe is fixedly connected to the bottom surface of the liquid storage box. An inner pipe is slidably connected to the bottom of the outer pipe. The top end of the inner pipe is fixedly connected with a sealing plate. The sealing plate is slidably connected inside the outer pipe and fits with the inner wall of the outer pipe. A one-way pressure valve A is arranged at the connection between the outer pipe and the liquid storage box. One side of the electric lifting plate is fixedly connected with a mounting short plate. The inner pipe is fixedly connected with the upper surface of the mounting short plate. An inner groove B is opened inside the mounting short plate. The inner groove B is communicated with the inside of the inner pipe. A limiting disc is arranged inside the inner groove B. A plug rod is fixedly connected to the bottom surface of the limiting disc.

[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 electric lifting plate, 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, and 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] Figure 9 This is a schematic diagram of the mold frame structure proposed by the present invention;

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

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

[0033] Figure 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. Example

[0037] like Figures 1 - 4As shown in the figure, the present invention provides a technical solution: a pre-stressed precast reinforced concrete road slab, including a pavement slab assembly 1, a splicing assembly 2 is arranged on the side of the pavement slab assembly 1, a limiting assembly 3 is arranged on the top of the pavement slab assembly 1, and an internal support assembly 4 is arranged inside the pavement slab assembly 1. The pavement slab assembly 1 includes a pavement slab main body 101, a plurality of tenons 102 are arranged on one side of the pavement slab main body 101, and a plurality of grooves 103 are formed on the other side of the pavement slab main body 101. The splicing assembly 2 includes a limiting strip 201, the limiting strip 201 is installed on both sides of the tenon 102, limiting grooves 202 are formed on both sides of the groove 103, and the limiting strip 201 is installed inside the limiting grooves 202. The internal support assembly 4 includes a plurality of vertical steel bars 402 and horizontal steel bars 401, and the horizontal steel bars 401 and the vertical steel bars 402 are arranged in a staggered manner.

[0038] In this embodiment, when splicing and installing the pavement slab assembly 1, the tenon 102 and the groove 103 are locked and connected, which facilitates the installation and splicing of the pavement slab assembly 1. At the same time, by installing the limiting strip 201 inside the limiting groove 202, it is beneficial to ensure the stability of the splicing and installation of the pavement slab assembly 1, avoiding situations such as dislocation and loosening of the pavement slab assembly 1, thereby improving the installation accuracy, achieving precise docking, being beneficial to increasing the stability of the connection part when the pavement slab assembly 1 is connected, improving the overall stability of the pavement slab assembly 1, and further improving the convenience of use of the pavement slab assembly 1. There is no need to frequently adjust the position, ensuring the structural stability of the pavement slab assembly 1, and thus extending the service life of the pavement slab assembly 1. At the same time, it facilitates the operator to quickly install and splice the pavement slab assembly 1 without repeated adjustment, shortening the construction period, and thus improving the construction efficiency. By the double-layer staggered distribution of the horizontal steel bars 401 and the vertical steel bars 402, it is beneficial to increase the bending resistance of the pavement slab assembly 1, thereby improving the bearing capacity of the pavement slab assembly 1 and extending the service life of the pavement slab assembly 1.

[0039] As Figures 1 - 4 shown in the figure, the limiting assembly 3 includes a plurality of upper hooks 301, the upper hooks 301 are installed on one side of the top of the pavement slab main body 101, a plurality of lower hooks 302 are distributed on the other side of the top of the pavement slab main body 101, one ends of the upper hooks 301 and the lower hooks 302 are both installed with shaft rods, a plurality of sliding grooves 304 are symmetrically formed on the top of the pavement slab main body 101, a limiting plate 303 is movably installed inside the sliding grooves 304, a plurality of pre-stress ducts 104 are formed inside the pavement slab main body 101, pre-stress steel wires 105 penetrate through the inside of the pre-stress ducts 104, a plurality of reserved holes 106 are formed at both ends of the pavement slab main body 101, soft pads 107 are installed at the four corners of the pavement slab main body 101, and angle steels 108 are installed on the outer sides of the soft pads 107.

[0040] 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.

[0041] 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. Example

[0042] Combined with Figures 5 - 12 as shown below, the following preferred technical solutions are provided:

[0043] The present invention provides a method for preparing a prestressed precast reinforced concrete road slab, comprising the following steps:

[0044] S1: Control the lifting structure to install the mold in the mold structure of the preparation device, then place the inner support assembly 4 in the mold. After aligning the inner support assembly 4 on the inner wall of the mold, pour the concrete raw material into the mold. After the concrete fills the mold, use the vibration device to remove the air bubbles in the concrete to complete the pouring work;

[0045] S2: After the oscillation ends, adjust the grooving mold inside the mold structure to reserve the notch on the surface of the concrete slab. Use the scraping structure to scrape off the excess and uneven concrete on the surface of the mold. Then use the lifting structure to drive the punching mold down to punch holes at the corresponding positions of the concrete to complete the grooving work;

[0046] 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 outside 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.

[0047] Further, in S1, the preparation device includes an outer base 5. Inside the outer base 5, there is a mold frame 502. The inner wall of the mold frame 502 is fixedly connected with a mold block 503. One side of the outer base 5 is fixedly connected with a mounting seat 6. One side of the mounting seat 6 is fixedly connected with a mounting table 601. The upper surface of the mounting table 601 is fixedly connected with an electric lifting plate 603. There are two groups of the electric lifting plates 603, and the two groups of the electric lifting plates 603 are symmetrically arranged. The electric lifting plate 603 penetrates through the mounting table 601. One side of the electric lifting plate 603 is provided with a punching component 604 for punching holes, and the mold block 503 is internally provided with a grooving component 7;

[0048] The opening component 604 includes a liquid storage box 605 fixedly connected to the bottom surface of the installation table 601. A demoulding agent is provided 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 end of the inner tube 610. The sealing plate 611 is slidably connected inside the outer tube 606 and fits against the inner wall of the outer tube 606. A one-way pressure valve A609 is provided at the connection between the outer tube 606 and the liquid storage box 605. One side of the electric lifting plate 603 is fixedly connected with an installation short plate 607. The inner tube 610 is fixedly connected to the upper surface of the installation short plate 607. An inner groove B613 is formed inside the installation short plate 607. The inner groove B613 communicates with the inside of the inner tube 610. A limiting disc 614 is provided inside the inner groove B613. A plug rod 608 is fixedly connected to the bottom surface of the limiting disc 614. When placing the mold frame 502, the electric lifting plate 603 moves downward along with the mold frame 502. After the installation is completed, the electric lifting plate 603 moves upward. Then, concrete is poured into the mold frame 502. During the upward movement of the electric lifting plate 603, the inner tube 610 is driven to move upward. By using the sealing plate 611 to squeeze the air inside the outer tube 606, the stored demoulding agent inside flows into the inner tube 610 through the one-way pressure valve B612. Through the inner groove B613 and the limiting disc 614, the demoulding agent flows downward, so that the surface of the plug rod 608 is attached with the demoulding agent. Subsequently, the plug rod 608 moves downward to open a hole in the concrete slab. The demoulding agent facilitates the subsequent removal of the plug rod 608. At the same time, when the inner tube 610 moves downward, the demoulding agent inside the liquid storage box 605 is supplemented into the outer tube 606 through the one-way pressure valve A609.

[0049] Further, the grooving 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. Installation frames A704 are fixedly connected to both sides of the movable block 702. Side grooves are formed on both sides of the installation seat 6. A grooving block 707 is slidably connected inside the side grooves. An installation plate B706 is fixedly connected to the side of the grooving block 707 close to the movable block 702. Connecting short rods are fixedly connected to the inner walls of the installation frames A704 and the installation plate B706. Inclined plates 705 are sleeved outside the connecting short rods. When grooving, press the top block 701 by hand. The top block 701 drives the movable block 702 to move downward. The inclined plates 705 are tilted accordingly, driving the grooving blocks 707 to move to both sides, so as to squeeze the concrete for grooving. After forming, pull out the top block 701 to reset.

[0050] Further, transverse grooves 504 are formed on both sides of the outer base 5. Inner groove A 505 is formed on one side of each transverse groove 504. A push block 506 is slidably connected inside the transverse groove 504. A short block 507 is fixedly connected to one side of the push block 506. The short block 507 is slidably connected inside the inner groove A 505. A magnetic plate A 509 is fixedly connected to one side of the short block 507. A clamping groove 508 is formed on the inner wall of the outer base 5. The clamping groove 508 is arranged corresponding to the mold block 503. A compression groove 510 is formed on one side of the electric lifting plate 603. A spring 511 is fixedly connected to the inner wall of the compression groove 510. One end of the spring 511 is fixedly connected to a clamping block 512. The clamping block 512 is slidably connected inside 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. A corresponding groove 514 is formed on one side of the mold frame 502. The corresponding groove 514 is arranged corresponding to the clamping block 512. When the electric lifting plate 603 is used to clamp and move the mold frame 502, under the action of the elastic force of the spring 511 itself, the clamping block 512 pops out towards the outside of the compression groove 510, and the clamping block 512 is used to be clamped into the corresponding groove 514 for fixation. When the electric lifting plate 603 needs to move upward after the installation of the mold frame 502 is completed, the push block 506 and the short block 507 are slid, so that the magnetic plate A 509 corresponds to the clamping block 512. By using the mutual attraction between the magnetic plate A 509 and the magnetic plate B 513, the clamping block 512 is driven to contract inside the compression groove 510, and then the electric lifting plate 603 can be lifted and lowered.

[0051] Further, a vibration bottom plate 501 is fixedly connected to the bottom surface of the outer base 5. An oscillation component 9 for vibrating the concrete is arranged inside the vibration bottom plate 501. The oscillation component 9 includes a motor 901 fixedly connected to one side of the vibration bottom plate 501. The output end of the motor 901 is fixedly connected to a rotating shaft 902. 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 bottom plate 501. A vibrator 602 is fixedly connected to the outside of the mounting seat 6. During the process of pouring the cement soil, the motor 901 is turned on. 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 air bubbles in the concrete inside the mold frame 502, and at the same time, cooperating with the vibrator 602 to further vibrate the concrete.

[0052] Furthermore, a scraping component 8 for scraping off excess concrete is arranged inside the mounting base 6. The scraping component 8 includes an electric telescopic rod 801 arranged inside the mounting base 6. One end of the electric telescopic rod 801 penetrates through one side of the mounting base 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. One side of the outer base 5 is hinged with a discharge plate 5011, and a collection box is fixedly connected to one side of the discharge plate 5011. After the concrete pouring is completed, the electric telescopic rod 801 is activated to drive the long plate 802 and the scraping plate 803 to move, so as to scrape off the excess concrete on the surface. The excess concrete is discharged into the collection box. After the concrete slab is formed, the discharge plate 5011 is opened and other devices are used to take out the concrete slab.

[0053] Working principle: During preparation, first place the mold frame 502. Under the elastic force of the spring 511 itself, the clamping block 512 pops out towards the outside of the compression groove 510, and the clamping block 512 is used to be clamped into the corresponding groove 514 for fixation. The electric lifting plate 603 moves downward along with the mold frame 502. After the installation is completed, the sliding block 506 and the short block 507 are slid, so that the magnetic plate A509 corresponds to the clamping block 512. By the mutual attraction between the magnetic plate A509 and the magnetic plate B513, the clamping block 512 is driven to contract into the compression groove 510. Then, the electric lifting plate 603 is contracted upward, and then concrete is poured into the mold frame 502. During the upward movement of the electric lifting plate 603, the inner tube 610 is driven to move upward. The air inside the outer tube 606 is squeezed by the sealing plate 611, so that the stored mold release agent inside flows into the inner tube 610 through the one-way pressure valve B612. Through the inner groove B613 and the limiting disc 614, the mold release agent flows downward, so that the surface of the insertion rod 608 is attached with the mold release agent. Then, press the top block 701 by hand. The top block 701 drives the movable block 702 to move downward, and the inclined plate 705 tilts accordingly, driving the slotted block 707 to move to both sides, so as to squeeze and form a groove in the concrete. During the pouring process, the motor 901 is activated. The motor 901 drives the rotating shaft 902 and the eccentric block 903 to rotate, knocking the air bubbles in the concrete inside the mold frame 502 out by knocking on the inner wall of the vibration bottom plate 501. At the same time, the vibrator 602 is cooperated to further vibrate the concrete. After the concrete pouring is completed, the electric telescopic rod 801 is activated to drive the long plate 802 and the scraping plate 803 to move, so as to scrape off the excess concrete on the surface. The excess concrete is discharged into the collection box. Subsequently, the electric lifting plate 603 is used to drive the insertion rod 608 to move downward to open holes in the concrete slab. When the inner tube 610 moves downward, the mold 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.

[0054] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in any other form. Any person skilled in the relevant art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A preparation method of a prestressed precast reinforced concrete road slab, characterized in that, It includes the following steps: S1: Control the lifting structure to install the mold in the mold structure of the preparation device, then place the inner support assembly (4) in the mold. After aligning the inner support assembly (4) on the inner wall of the mold, pour the concrete raw material into the mold. After the concrete fills the mold, use the vibration device to remove the air bubbles in the concrete to complete the pouring work. S2: After the vibration ends, adjust the grooving mold inside the mold structure to reserve the notch on the surface of the concrete slab. Use the scraping structure to scrape off the uneven concrete on the surface of the mold. Then use the lifting structure to drive the punching mold to move downwards and punch holes at the corresponding positions of the concrete to complete the grooving 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 outside the mold, drive the mold to rise and separate from the concrete slab. Then use other handling equipment to take out the formed concrete slab to complete the preparation work. In the above S1, the preparation device includes an outer base (5). Inside the outer base (5), there is a mold frame (502). The inner wall of the mold frame (502) is fixedly connected with a mold block (503). One side of the outer base (5) is fixedly connected with a mounting seat (6). One side of the mounting seat (6) is fixedly connected with a mounting table (601). The upper surface of the mounting table (601) is fixedly connected with an electric lifting plate (603). There are two groups of the electric lifting plates (603) in total, and the two groups of the electric lifting plates (603) are symmetrically arranged. The electric lifting plate (603) penetrates through the mounting table (601). One side of the electric lifting plate (603) is provided with a punching component (604) for punching holes, and inside the mold block (503), there is a grooving component (7) for grooving. The punching component (604) includes a liquid storage box (605) fixedly connected to the bottom surface of the mounting table (601). Inside the liquid storage box (605), there is a release agent. The bottom surface of the liquid storage box (605) is fixedly connected with an outer tube (606). The bottom of the outer tube (606) is slidably connected with an inner tube (610). The top end of the inner tube (610) is fixedly connected with a sealing plate (611). The sealing plate (611) is slidably connected inside the outer tube (606) and fits with the inner wall of the outer tube (606). A one-way pressure valve A (609) is arranged at the connection between the outer tube (606) and the liquid storage box (605). One side of the electric lifting plate (603) is fixedly connected with a mounting short plate (607). The inner tube (610) is fixedly connected with the upper surface of the mounting short plate (607). Inside the mounting short plate (607), there is an inner groove B (613). The inner groove B (613) is communicated with the inside of the inner tube (610). Inside the inner groove B (613), there is a limiting disc (614). The bottom surface of the limiting disc (614) is fixedly connected with a plug rod (608).

2. The preparation method of a prestressed precast reinforced concrete road slab according to claim 1, characterized in that: The grooving component (7) includes a vertical frame (703) fixedly connected to the inner wall of the die 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 brackets A (704) are fixedly connected to both sides of the movable block (702). Side grooves are formed on both sides of the mounting base (6). Grooving blocks (707) are slidably connected inside the side grooves. A mounting plate B (706) is fixedly connected to the side of the grooving block (707) close to the movable block (702). Connecting short rods are fixedly connected to the inner walls of the mounting bracket A (704) and the mounting plate B (706). Inclined plates (705) are sleeved outside the connecting short rods.

3. The preparation method of a prestressed precast reinforced concrete road slab according to claim 1, characterized in that: Transverse grooves (504) are formed on both sides of the outer base (5). Inner grooves A (505) are formed on one side of each of the transverse grooves (504). A pushing block (506) is slidably connected inside the transverse grooves (504). A short block (507) is fixedly connected to one side of the pushing block (506). The short block (507) is slidably connected inside the inner groove A (505). A magnetic plate A (509) is fixedly connected to one side of the short block (507). A clamping groove (508) is formed on the inner wall of the outer base (5). The clamping groove (508) is arranged corresponding to the die block (503). A compression groove (510) is formed on one side of the electric lifting plate (603). A spring (511) is fixedly connected to the inner wall of the compression groove (510). One end of the spring (511) is fixedly connected to a clamping block (512). The clamping block (512) is slidably connected inside 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. A corresponding groove (514) is formed on one side of the die frame (502). The corresponding groove (514) is arranged corresponding to the clamping block (512).

4. The preparation method of a prestressed precast reinforced concrete road slab according to claim 3, characterized in that: A vibration bottom plate (501) is fixedly connected to the bottom surface of the outer base (5). An oscillation component (9) for vibrating the concrete is arranged inside the vibration bottom plate (501). The oscillation component (9) includes a motor (901) fixedly connected to one side of the vibration bottom 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). The eccentric block (903) is in contact with the inner wall of the vibration bottom plate (501). A vibrator (602) is fixedly connected to the outside of the mounting base (6).

5. The preparation method of a prestressed precast reinforced concrete road slab according to claim 4, characterized in that: A scraping component (8) for scraping off the excess concrete is arranged inside the mounting base (6). The scraping component (8) includes an electric telescopic rod (801) arranged inside the mounting base (6). One end of the electric telescopic rod (801) penetrates through one side of the mounting base (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 hinged to one side of the outer base (5). A collection frame is fixedly connected to one side of the discharge plate (5011).

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