Prefabricated concrete road base plate manufacturing device

Abstract

The invention discloses a prefabricated concrete road base plate manufacturing device, and belongs to the technical field of concrete road base plates, the prefabricated concrete road base plate manufacturing device comprises a main body module, a vibration module and a material injection module, the main body module comprises a hollow frame, a supporting frame is fixedly connected to the bottom of the hollow frame, and supporting rods are fixedly connected to four included angles of the top of the hollow frame; a top plate is fixedly connected among the top ends of the four supporting rods, and through arrangement of an elastic assembly, a driving assembly, a moving assembly, a speed reduction transmission assembly, a first air cylinder and vibrating rods, when the driving assembly is opened to drive a concrete formwork to vibrate, vibration of the concrete formwork driven by the driving assembly is matched with vibration of the multiple vibrating rods, and the concrete formwork is driven to vibrate. And under the condition that the concrete is thick, the device can comprehensively vibrate the concrete and cooperate with vibration treatment, the compactness of the concrete is improved, and then the manufacturing quality of the road base plate is improved.

Description

Technical Field

[0001] The present application relates to the technical field of concrete road base plate manufacturing, and more specifically, to a prefabricated concrete road base plate manufacturing device. Background Art

[0002] At present, roads are divided into highways, urban roads, rural roads, factory roads, forestry roads, examination roads, etc., and the road base plate is the concrete slab that needs to be laid during road construction. Concrete slabs are the basic structures or components in various engineering structures. They are often used as roofs, foundations, floors, pavements, pools, etc. They have a wide range of applications. Concrete slabs are divided into square slabs, round slabs and special-shaped slabs according to their plane shapes. Prefabricated concrete road base plates are concrete road base plates that are pre-made to facilitate subsequent use.

[0003] According to the search, the Chinese patent with patent number CN215241538U discloses a civil engineering concrete slab manufacturing device, including a sliding frame, a placing plate and a workbench, a telescopic rod is fixedly installed on the top of the workbench, and a spring is fixedly installed inside the telescopic rod, a placing plate is fixedly installed on the top of the telescopic rod, a vibration motor is fixedly installed on the bottom of the placing plate, and a threaded rod is movably installed on the top of the fixed frame, a limit plate is fixedly installed on the bottom of the threaded rod, a sliding frame is fixedly installed on the top of the placing plate between the support frames, a material guide pipe is movably installed between the sliding frames, connecting plates are fixedly installed on the surfaces of both ends of the material guide pipe, and pulleys are fixedly installed on the bottom of the connecting plate. By providing a series of structures, the device can increase the speed of concrete integration into the mold during use, reduce the possibility of bubbles inside the concrete slab, and save time and manpower for manual shoveling of concrete using tools.

[0004] With respect to the above-mentioned related technologies, the applicant believes that when making concrete slabs, the above-mentioned concrete slab manufacturing device drives the mold placed on the slab to vibrate through a vibration motor, thereby increasing the density of the concrete. However, when the vibration is generated by the vibration motor and the concrete inside the mold is thicker, the vibration effect on the middle part of the concrete is also limited, resulting in the compactness being affected, which affects the subsequent production quality of the concrete slabs. For this reason, we propose a precast concrete road base manufacturing device. Summary of the invention

[0005] In order to solve the above problems, the present application provides a prefabricated concrete road base manufacturing device, which adopts the following technical solutions:

[0006] A precast concrete road substrate manufacturing device comprises a main body module, a vibration module and an injection module, the main body module comprises a hollow frame, the bottom of the hollow frame is fixedly connected to a support frame, four angles at the top of the hollow frame are fixedly connected to support rods, a top plate is fixedly connected between the tops of the four support rods, the vibration module comprises two elastic components that are fixedly connected between the two sides of the inner wall of the hollow frame, a placement plate is fixedly connected between the tops of the two elastic components, fixed components are arranged on both sides of the top of the placement plate, a driving component is arranged on one side of the support frame, a moving groove is opened on the front end surface of the hollow frame, a moving component is arranged inside the moving groove, a reduction transmission component is arranged between one side of the hollow frame and the driving component, the reduction transmission component is connected to the moving component, a first cylinder is installed on the moving component, the output shaft of the first cylinder is fixedly connected to a transverse plate, a plurality of vibrating rods are installed inside the transverse plate, and the injection module is arranged inside the top plate.

[0007] Furthermore, the elastic component includes a sliding rod fixedly connected between two sides of the inner wall of the hollow frame, the outer surface of the sliding rod is slidably sleeved with a fitting block, the outer surface of the fitting block is fixedly connected to the bottom of the placement plate, and first springs are fixedly connected between both ends of the fitting block and two sides of the inner wall of the hollow frame, and the two first springs are located outside the sliding rod.

[0008] By adopting the above technical solution, the placement plate can be moved, and the provision of the first spring facilitates the auxiliary placement plate to be reset.

[0009] Furthermore, the drive assembly includes two L-shaped blocks fixedly connected to one side of the support frame, a first motor is mounted on one of the L-shaped blocks, an output shaft of the first motor is fixedly connected to a crankshaft, one end of the crankshaft is fixedly connected to a worm, and one end of the worm is rotatably connected to the front end surface of the inner wall of the other L-shaped block.

[0010] By adopting the above technical solution, the crankshaft and the worm can be installed, which is convenient for the subsequent reduction transmission of the worm.

[0011] Furthermore, the driving assembly also includes a hollow block fixedly connected to the bottom of the placement plate, a sleeve rod is hinged inside the hollow block, and the other end of the sleeve rod is rotatably sleeved on the outer surface of the crankshaft.

[0012] By adopting the above technical solution, the placement plate can be pushed back and forth, thereby causing the placement plate to vibrate.

[0013] Furthermore, the moving assembly includes a screw rod rotatably connected between the two ends of the inner wall of the moving groove, one end of the screw rod extends to the outside of the hollow frame and is fixedly connected to a pinion gear, a translation plate is threadedly sleeved on the outer surface of the screw rod, the first cylinder is fixedly installed inside the translation plate, a limiting groove is provided on the rear end face of the inner wall of the moving groove, a translation block is slidably connected inside the limiting groove, and the translation block is fixedly connected to the translation plate.

[0014] By adopting the above technical solution, the vibrating rod is driven to move by the rotation of the screw rod, so that the vibrating rod can be easily moved to a position for vibration.

[0015] Furthermore, the reduction transmission assembly includes two rotating columns which are respectively rotatably connected to one side of the hollow frame and one side of the inner wall of the other L-shaped block. One end of the two rotating columns is respectively fixedly connected to a worm wheel and an incomplete gear. The worm wheel is meshed with the worm, and the incomplete gear is meshed with the pinion.

[0016] By adopting the above technical solution, the rotation of the crankshaft can be decelerated, and the transmission screw can be rotated intermittently at the same time.

[0017] Furthermore, the reduction transmission assembly also includes a large sprocket fixedly connected to the outer surface of one of the rotating columns and close to the incomplete gear, wherein a small sprocket is fixedly connected to the outer surface of the other rotating column, and a chain is transmission-connected between the outer surfaces of the large sprocket and the small sprocket.

[0018] By adopting the above technical solution, the speed can be further reduced, thereby reducing the rotation speed of the incomplete gear.

[0019] Furthermore, the fixing assembly includes a C-shaped block fixedly connected to one side of the top of the placement plate, the front end face and the rear end face of the inner wall of the C-shaped block are both provided with horizontal grooves, a movable plate is slidably connected between the inner walls of the two horizontal grooves, a first oblique block is fixedly connected to one side of the movable plate, a second cylinder is fixedly installed on the top of the placement plate, the output shaft of the second cylinder is fixedly connected to a second oblique block slidably connected to the first oblique block, two second springs are fixedly connected between one side of the movable plate and one side of the inner wall of the C-shaped block, and the two second springs are respectively located inside the two horizontal grooves.

[0020] By adopting the above technical solution, the concrete formwork can be fixed to improve the stability of the formwork.

[0021] Furthermore, the injection module includes a material box arranged inside the top plate, a discharge valve is installed at the bottom of the material box, a filling hose is connected to the bottom of the discharge valve, a cross plate is fixedly connected to the top of the material box, a second motor is fixedly installed on the top of the cross plate, and a stirring rod is fixedly connected to the output shaft of the second motor.

[0022] By adopting the above technical solution, concrete can be stirred to avoid concrete solidification.

[0023] Furthermore, the injection module also includes two limiting slide grooves respectively opened on the front end surface and the rear end surface of the inner wall of the top plate, the interiors of the two limiting slide grooves are both slidably connected to the limiting sliders, and the two limiting sliders are both fixedly connected to the material box.

[0024] By adopting the above technical solution, the material box can be moved, thereby facilitating the injection of materials into the template.

[0025] In summary, this application includes the following beneficial technical effects:

[0026] (1) The present application arranges the elastic component, the driving component, the moving component, the reduction transmission component, the first cylinder and the vibrating rod, so that when the driving component is turned on to drive the concrete formwork to vibrate, multiple vibrating rods can be intermittently driven to move positions at the same time, and then the first cylinder drives the vibrating rod to descend and insert into the concrete for vibration and then lift it up, so that the vibrating rod repeatedly moves to vibrate the concrete, so that the vibration of the concrete formwork driven by the driving component is coordinated with the vibration of multiple vibrating rods, so that when the concrete is thick, the present device can also fully vibrate the concrete and cooperate with the vibration treatment to improve the compactness of the concrete, thereby improving the manufacturing quality of the road base plate;

[0027] (2) The present application facilitates fixing the concrete formwork during use by providing the second cylinder, the second oblique block, the first oblique block and the movable plate, thereby preventing the concrete formwork from shaking during subsequent vibrations, thereby improving the stability of the formwork;

[0028] (3) The present application arranges the material box, the second motor, the stirring rod, the discharge valve, the injection hose, the limit slide groove and the limit slider, so that the stirring of the second motor and the stirring rod can prevent the concrete from solidifying. The arrangement of the injection hose and the discharge valve can facilitate the pouring of concrete. The arrangement of the limit slide groove and the limit slider allows the material box to be easy to move during use, thereby facilitating the pouring of concrete and improving the convenience of the overall pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of this application;

[0030] Figure 2 Schematic diagram of the exploded structure where the plate is placed for this application;

[0031] Figure 3 A schematic diagram of the structure of the mobile component of this application;

[0032] Figure 4This is a schematic diagram of the exploded structure of the reduction transmission assembly of this application;

[0033] Figure 5 This is an enlarged structural diagram of location A of this application;

[0034] Figure 6 This is a schematic diagram of the structure of the injection module of this application.

[0035] Description of the numbers in the figure:

[0036] 100, main body module; 110, hollow frame; 120, support frame; 130, support rod; 140, top plate;

[0037] 200, vibration module; 210, elastic component; 211, slide bar; 212, set block; 213, first spring; 220, placement plate; 230, fixing component; 231, C-shaped block; 232, horizontal slot; 233, moving plate; 234, first oblique block; 235, second cylinder; 236, second oblique block; 237, second spring; 240, driving component; 241, L-shaped block; 242, first motor; 243 , crankshaft; 244, worm; 245, hollow block; 245, hollow block; 246, set rod; 250, moving assembly; 251, screw rod; 252, small gear; 253, translation plate; 254, translation block; 260, reduction transmission assembly; 261, rotating column; 262, worm wheel; 263, incomplete gear; 264, large sprocket; 265, small sprocket; 266, chain; 270, first cylinder; 280, vibrating rod;

[0038] 300, injection module; 310, material box; 320, second motor; 330, stirring rod; 340, discharge valve; 350, injection hose; 360, limit slide; 370, limit slider. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0040] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] The following is combined with Figure 1-6 This application is described in further detail.

[0043] See also Figure 1-6 A precast concrete road base manufacturing device includes a main body module 100, a vibration module 200 and an injection module 300. The main body module 100 includes a hollow frame 110. The bottom of the hollow frame 110 is fixedly connected to a support frame 120. The four angles at the top of the hollow frame 110 are fixedly connected to support rods 130. The tops of the four support rods 130 are fixedly connected to a top plate 140. The vibration module 200 includes two elastic components 210 fixedly connected between the two sides of the inner wall of the hollow frame 110. A placement plate 220 is fixedly connected between the tops of the two elastic components 210. The placement plate 220 0A fixing assembly 230 is disposed on both sides of the top, a driving assembly 240 is disposed on one side of the support frame 120, a moving groove is provided on the front end surface of the hollow frame 110, a moving assembly 250 is disposed inside the moving groove, a reduction transmission assembly 260 is disposed between one side of the hollow frame 110 and the driving assembly 240, the reduction transmission assembly 260 is connected to the moving assembly 250, a first cylinder 270 is installed on the moving assembly 250, an output shaft of the first cylinder 270 is fixedly connected to a transverse plate, a plurality of vibrating rods 280 are installed inside the transverse plate, and an injection module 300 is disposed inside the top plate 140.

[0044] When in use, the staff places the concrete formwork on the top of the placement plate 220 and fixes the formwork with two fixing components 230, and then evenly injects material into the inside of the formwork through the injection module 300. After the injection is completed, the injection module 300 is moved away from the top of the formwork, and then the staff turns on the drive component 240, which will drive the placement plate 220. The elastic force of the two elastic components 210 makes the placement plate 220 swing back and forth to generate vibration, and at the same time, the drive component 240 will reduce the transmission speed through the reduction transmission component 260 to move Component 250, the moving component 250 will drive the first cylinder 270 to move intermittently. When the first cylinder 270 stops moving, the first cylinder 270 will drive multiple vibrating rods 280 to descend and insert into the concrete to vibrate the concrete. After vibration, it will drive multiple vibrating rods 280 to be lifted up, and then the reduction transmission component 260 will drive the vibrating rods 280 to move to the next position for the next descent and vibration. Repeat the above steps, so that the concrete can be vibrated by multiple vibrating rods 280 while vibrating, so that the concrete can be more compact.

[0045] The elastic component 210 includes a slide bar 211 fixedly connected between the two sides of the inner wall of the hollow frame 110, and a set block 212 is slidably sleeved on the outer surface of the slide bar 211. The outer surface of the set block 212 is fixedly connected to the bottom of the placement plate 220. The two ends of the set block 212 are fixedly connected to the two sides of the inner wall of the hollow frame 110 with a first spring 213. The two first springs 213 are both located outside the slide bar 211. The driving component 240 includes two L-shaped blocks 241, which are both fixedly connected to one side of the support frame 120, and one of the L-shaped blocks 241 is fixedly connected to the support frame 120. 1 is provided with a first motor 242, the output shaft of the first motor 242 is fixedly connected to a crankshaft 243, one end of the crankshaft 243 is fixedly connected to a worm 244, one end of the worm 244 is rotatably connected to the front end surface of the inner wall of another L-shaped block 241, the driving assembly 240 also includes a hollow block 245 fixedly connected to the bottom of the placing plate 220, the interior of the hollow block 245 is hinged with a sleeve rod 246, the other end of the sleeve rod 246 is rotatably sleeved on the outer surface of the crankshaft 243, and the moving assembly 250 includes a hollow block 245 rotatably connected to the inner wall of the moving groove The screw rod 251 between the two ends, one end of the screw rod 251 extends to the outside of the hollow frame 110 and is fixedly connected to the pinion 252, the outer surface of the screw rod 251 is threadedly sleeved with a translation plate 253, the first cylinder 270 is fixedly installed inside the translation plate 253, the rear end surface of the inner wall of the moving groove is provided with a limiting groove, the inside of the limiting groove is slidably connected with a translation block 254, the translation block 254 is fixedly connected to the translation plate 253, the reduction transmission assembly 260 includes two L-shaped blocks 241 respectively rotatably connected to one side of the hollow frame 110 and the other one thereof. A rotating column 261 on one side of the inner wall, one end of the two rotating columns 261 is fixedly connected with a worm wheel 262 and an incomplete gear 263 respectively, the worm wheel 262 is meshed with the worm 244, and the incomplete gear 263 is meshed with the pinion 252, and the reduction transmission assembly 260 also includes a large sprocket 264 fixedly connected to the outer surface of one of the rotating columns 261 and close to the incomplete gear 263, wherein the outer surface of the other rotating column 261 is fixedly connected with a small sprocket 265, and a chain 266 is transmission-connected between the outer surfaces of the large sprocket 264 and the small sprocket 265.

[0046] The first motor 242 is turned on to drive the crankshaft 243 to rotate. When the crankshaft 243 rotates, it will push the placement plate 220 to swing through the worm 244. At the same time, the set block 212 slides on the slide bar 211, and the first spring 213 reciprocates to generate vibration. At the same time, the worm 244 will rotate the transmission worm wheel 262 to reduce the rotation speed. The incomplete gear 263 drives one of the rotating columns 261 to rotate. One of the rotating columns 261 is driven to reduce the rotation speed of another rotating column 261 again through the transmission cooperation between the small sprocket 265, the large sprocket 264 and the chain 266. 61 rotates, and another rotating column 261 will drive the incomplete gear 263 to drive the small gear 252 to drive the screw rod 251 to rotate intermittently. The screw rod 251 will drive the translation plate 253 to move during the intermittent rotation. When the screw rod 251 stops rotating, the first cylinder 270 will drive the multiple vibrating rods 280 to descend and insert into the concrete to vibrate the concrete. After vibration, the multiple vibrating rods 280 will be lifted up, and then the incomplete gear 263 will continue to drive and move to the next position to descend and vibrate again, and repeat the above steps to make the concrete more compact.

[0047] The fixing assembly 230 includes a C-shaped block 231 fixedly connected to one side of the top of the placement plate 220, and the front end face and the rear end face of the inner wall of the C-shaped block 231 are both provided with horizontal grooves 232, and a movable plate 233 is slidably connected between the inner walls of the two horizontal grooves 232, and a first oblique block 234 is fixedly connected to one side of the movable plate 233, and a second cylinder 235 is fixedly installed on the top of the placement plate 220, and the output shaft of the second cylinder 235 is fixedly connected to a second oblique block 236 slidably connected to the first oblique block 234, and two second springs 237 are fixedly connected between one side of the movable plate 233 and one side of the inner wall of the C-shaped block 231, and the two second springs 237 are respectively located inside the two horizontal grooves 232.

[0048] Open the second cylinder 235 to drive the second oblique block 236 to move. When moving, the second oblique block 236 will push the first oblique block 234. The first oblique block 234 will drive the movable plate 233 to move to press the template and stretch the two second springs 237, so as to fix the template. Open the second cylinder 235 in reverse to drive the second oblique block 236 to reset, so that the second spring 237 contracts and pulls the movable plate 233 to reset, thereby releasing the fixation of the template, making it easier to fix the template.

[0049] The injection module 300 includes a material box 310 arranged inside the top plate 140, a discharge valve 340 is installed at the bottom of the material box 310, and a injection hose 350 is connected to the bottom of the discharge valve 340. A cross plate is fixedly connected to the top of the material box 310, and a second motor 320 is fixedly installed on the top of the cross plate. The output shaft of the second motor 320 is fixedly connected to a stirring rod 330. The injection module 300 also includes two limiting slide grooves 360 respectively opened on the front end face and the rear end face of the inner wall of the top plate 140, and the interiors of the two limiting slide grooves 360 are both slidably connected to the limiting sliders 370, and the two limiting sliders 370 are both fixedly connected to the material box 310.

[0050] Concrete material is poured into the material box 310. When the material box 310 is opened, the second motor 320 will drive the stirring rod 330 to rotate. The rotation of the stirring rod 330 will prevent the concrete material from solidifying. Subsequently, the discharge valve 340 is opened to evenly inject material into the template through the injection hose 350. Pushing the material box 310 can allow the limit slider 370 to slide inside the limit slide groove 360, thereby increasing the injection range.

[0051] The implementation principle of the embodiment of the present application is as follows: when in use, the staff places the concrete template on the top of the placing plate 220, and then turns on the second cylinder 235 to drive the second oblique block 236 to move. When the second oblique block 236 moves, it will push the first oblique block 234, and the first oblique block 234 will drive the moving plate 233 to move and press the template and stretch the two second springs 237, so as to fix the template. Subsequently, concrete material is poured into the material box 310, and the material box 310 opens the second motor 320 to drive the stirring rod 330 to rotate, and the rotation of the stirring rod 330 will prevent the concrete from being mixed. After the concrete solidifies, the discharge valve 340 is opened to uniformly inject material into the template through the injection hose 350, and the material box 310 is pushed, so that the limit slider 370 can slide inside the limit slide groove 360, thereby increasing the injection range. After the injection is completed, the material box 310 is moved above the template, and then the staff turns on the first motor 242 to drive the crankshaft 243 to rotate. When the crankshaft 243 rotates, it will push the placement plate 220 to swing through the worm 244, and at the same time, the set block 212 slides on the slide rod 211, and the first spring 213 reciprocates to generate vibration, and at the same time, the worm 244 will rotate the transmission worm wheel 262 to reduce the speed, and the incomplete gear 263 will drive one of the rotating columns 261 to rotate. One of the rotating columns 261 will reduce the speed again through the transmission cooperation between the small sprocket 265, the large sprocket 264 and the chain 266 to drive the other rotating column 261 to rotate. The other rotating column 261 will drive the incomplete gear 263 to drive the small gear 252 to drive the screw rod 251 to rotate intermittently. When the screw rod 251 rotates intermittently, it will drive the translation plate 253 to move. When the screw rod 251 stops rotating, the first cylinder 270 will drive multiple vibrating rods 28 0 is lowered and inserted into the concrete to vibrate the concrete. After vibration, multiple vibrating rods 280 are lifted up, and then the incomplete gear 263 continues to transmit the transmission to move the position, thereby driving the vibrating rods 280 to move to the next position for another lowering and vibration. The above steps are repeated, so that the concrete can be vibrated by multiple vibrating rods 280 while vibrating, thereby making the concrete more compact. After the processing is completed, the second cylinder 235 can be opened in reverse to drive the second oblique block 236 to reset, so that the second spring 237 is driven to contract and pull the movable plate 233 to reset, thereby releasing the fixation of the template.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A precast concrete road base manufacturing device, comprising a main body module (100), a vibration module (200) and a material injection module (300), characterized in that: The main body module (100) comprises a hollow frame (110), the bottom of the hollow frame (110) is fixedly connected to a support frame (120), four angles at the top of the hollow frame (110) are fixedly connected to support rods (130), and a top plate (140) is fixedly connected between the top ends of the four support rods (130); The vibration module (200) comprises two elastic components (210) fixedly connected between two sides of the inner wall of the hollow frame (110); a placement plate (220) is fixedly connected between the tops of the two elastic components (210); both sides of the top of the placement plate (220) are provided with fixing components (230); one side of the support frame (120) is provided with a driving component (240); a moving groove is provided on the front end surface of the hollow frame (110); a moving component is provided inside the moving groove; A reduction transmission assembly (260) is arranged between one side of the hollow frame (110) and the driving assembly (240), the reduction transmission assembly (260) is connected to the moving assembly (250), a first cylinder (270) is installed on the moving assembly (250), the output shaft of the first cylinder (270) is fixedly connected to a transverse plate, a plurality of vibrating rods (280) are installed inside the transverse plate, and the injection module (300) is arranged inside the top plate (140).

2. The precast concrete road base manufacturing device according to claim 1, characterized in that: The elastic component (210) comprises a sliding rod (211) fixedly connected between two sides of the inner wall of the hollow frame (110); a sleeve block (212) is slidably sleeved on the outer surface of the sliding rod (211); the outer surface of the sleeve block (212) is fixedly connected to the bottom of the placement plate (220); first springs (213) are fixedly connected between the two ends of the sleeve block (212) and the two sides of the inner wall of the hollow frame (110); and the two first springs (213) are both located outside the sliding rod (211).

3. The precast concrete road base manufacturing device according to claim 2, characterized in that: The driving assembly (240) comprises two L-shaped blocks (241) both fixedly connected to one side of the support frame (120), a first motor (242) being mounted on one of the L-shaped blocks (241), an output shaft of the first motor (242) being fixedly connected to a crankshaft (243), one end of the crankshaft (243) being fixedly connected to a worm (244), and one end of the worm (244) being rotatably connected to a front end surface of an inner wall of the other L-shaped block (241).

4. The precast concrete road base manufacturing device according to claim 3, characterized in that: The driving assembly (240) further comprises a hollow block (245) fixedly connected to the bottom of the placement plate (220), a sleeve rod (246) being hingedly connected inside the hollow block (245), and the other end of the sleeve rod (246) being rotatably sleeved on the outer surface of the crankshaft (243).

5. The precast concrete road base manufacturing device according to claim 4, characterized in that: The moving assembly (250) comprises a screw rod (251) rotatably connected between the two ends of the inner wall of the moving groove, one end of the screw rod (251) extends to the outside of the hollow frame (110) and is fixedly connected to a pinion gear (252), a translation plate (253) is threadedly sleeved on the outer surface of the screw rod (251), the first cylinder (270) is fixedly installed inside the translation plate (253), a limiting groove is provided on the rear end surface of the inner wall of the moving groove, a translation block (254) is slidably connected inside the limiting groove, and the translation block (254) is fixedly connected to the translation plate (253).

6. The precast concrete road base manufacturing device according to claim 5, characterized in that: The reduction transmission assembly (260) comprises two rotating columns (261) respectively rotatably connected to one side of the hollow frame (110) and one side of the inner wall of the other L-shaped block (241); one end of the two rotating columns (261) is respectively fixedly connected to a worm wheel (262) and an incomplete gear (263); the worm wheel (262) is meshed with the worm (244), and the incomplete gear (263) is meshed with the pinion (252).

7. The precast concrete road base manufacturing device according to claim 6, characterized in that: The reduction transmission assembly (260) further comprises a large sprocket (264) fixedly connected to the outer surface of one of the rotating columns (261) and close to the incomplete gear (263), wherein a small sprocket (265) is fixedly connected to the outer surface of the other rotating column (261), and a chain (266) is transmission-connected between the outer surfaces of the large sprocket (264) and the small sprocket (265).

8. The precast concrete road base manufacturing device according to claim 7, characterized in that: The fixing assembly (230) comprises a C-shaped block (231) fixedly connected to one side of the top of the placement plate (220); the front end face and the rear end face of the inner wall of the C-shaped block (231) are both provided with horizontal grooves (232); a moving plate (233) is slidably connected between the inner walls of the two horizontal grooves (232); a first oblique block (234) is fixedly connected to one side of the moving plate (233); a second cylinder (235) is fixedly installed on the top of the placement plate (220); an output shaft of the second cylinder (235) is fixedly connected to a second oblique block (236) slidably connected to the first oblique block (234); two second springs (237) are fixedly connected between one side of the moving plate (233) and one side of the inner wall of the C-shaped block (231); the two second springs (237) are respectively located inside the two horizontal grooves (232).

9. The precast concrete road base manufacturing device according to claim 8, characterized in that: The injection module (300) includes a material box (310) arranged inside the top plate (140), a discharge valve (340) is installed at the bottom of the material box (310), the bottom of the discharge valve (340) is connected to an injection hose (350), the top of the material box (310) is fixedly connected to a cross plate, the top of the cross plate is fixedly installed with a second motor (320), and the output shaft of the second motor (320) is fixedly connected to a stirring rod (330).

10. The precast concrete road base manufacturing device according to claim 9, characterized in that: The injection module (300) further comprises two limiting slide grooves (360) respectively provided on the front end face and the rear end face of the inner wall of the top plate (140), the interiors of the two limiting slide grooves (360) are both slidably connected to limiting sliders (370), and the two limiting sliders (370) are both fixedly connected to the material box (310).

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