Precast slab tilting-up device

Abstract

A precast slab tilting-up device, comprising a fixed mechanism (1), and further comprising a placement mechanism (2) and a clamping mechanism (3). The placement mechanism (2) comprises two adjusting screw rods (201); a movable seat (205) is sleeved on the outer side of each of the two adjusting screw rods (201); a traction plate (206) is mounted on the top of each of the two movable seats (205); a placement plate (208) is arranged on the tops of the traction plates (206); the clamping mechanism (3) comprises a stop plate (301); a first hydraulic cylinder (303) is arranged on the inner wall of the stop plate (301); clamping plates (305) are arranged at two output ends of the first hydraulic cylinder (303); and a second hydraulic cylinders (307) is arranged between the outer wall of each of the two ends of the stop plate (301) and the placement plate (208).

Description

A precast slab flipping device Technical Field

[0001] This invention relates to the field of precast slab loading and unloading technology, and specifically to a precast slab flipping device. Background Technology

[0002] Precast slabs are the modules or panels used in engineering projects. Because they are precast concrete components manufactured and processed in a prefabrication yard and then transported directly to the construction site for installation, they are called precast slabs. To make precast slabs, a hollow model is first made by nailing wooden boards together. Reinforcing steel bars are then placed in the hollow parts of the model, and cement is poured into the hollow parts. After drying, the wooden boards are removed, leaving the precast slab. Precast slabs have many uses in construction, such as cement slabs covering ditches along roadsides and cement slabs used as insulation layers on roofs. After production, the precast slabs are tilted at a certain angle using a flipping device, allowing for transport in a small space and temporary stacking on the production line.

[0003] The existing technology has the following shortcomings: When flipping precast slabs, the existing flipping devices usually rotate directly to drive the precast slabs to flip. The precast slabs cannot remain stable during the flipping process, making them prone to slipping. At the same time, they cannot perform flipping operations of more than 90 degrees for different needs, which affects the flipping and unloading of precast slabs. Summary of the Invention

[0004] The purpose of this invention is to provide a precast slab flipping device. The first hydraulic cylinder operates to allow two clamping plates to clamp and fix the precast slab. The rotation of two adjusting screws drives two movable seats to move. Under the traction of the traction plate, the tilt angle of the placement plate can be adjusted. When the placement plate rotates to the maximum angle, the two second hydraulic cylinders operate to push the barrier plate to rotate on one side of the outer wall of the placement plate, so that the clamping mechanism can drive the precast slab to continue flipping, thereby solving the above-mentioned shortcomings in the technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precast slab flipping device, comprising a fixing mechanism, and further comprising:

[0006] The placement mechanism, located on top of the fixing mechanism, is used for placing, flipping, and loading / unloading precast slabs.

[0007] A clamping mechanism, located on top of the placement mechanism, is used to clamp the precast slab and further flip it.

[0008] The placement mechanism includes two adjusting screws and a rotating worm. The two adjusting screws are respectively disposed on the inner walls of the top two ends of the fixed mechanism. A driven worm wheel is fixedly sleeved on one side of the outer wall of each of the two adjusting screws. The rotating worm is disposed on one side of the outer wall of the fixed mechanism. A servo motor is disposed at one end of the rotating worm. The rotating worm meshes with the two driven worm wheels. Movable seats are threaded onto the outer sides of each of the two adjusting screws. A traction plate is rotatably mounted on the top of each of the two movable seats. A placement plate rotatably mounted on the top of the traction plate is disposed on the top of the traction plate.

[0009] The clamping mechanism includes a baffle plate, which is rotatably mounted on the outer wall of one side of the placement plate. A first hydraulic cylinder is provided on the inner wall of the baffle plate. Clamping plates are provided at both output ends of the first hydraulic cylinder. A second hydraulic cylinder is provided between the outer walls of both ends of the baffle plate and the placement plate.

[0010] A concave groove is provided in the middle of the placement plate. The concave groove has a connecting hole for connecting to an external air pressure mechanism. A mounting ring is provided in the concave groove. An elastic diaphragm is provided on the mounting ring. The upper end of the elastic diaphragm protrudes upward in an arc shape and protrudes from the upper surface of the placement plate. The height of the protrusion of the elastic diaphragm is 10 to 20 mm. The elastic diaphragm has multiple adsorption holes.

[0011] Preferably, the fixing mechanism includes a fixed base plate, and fixing frames are fixedly installed at both ends of the outer wall of one side of the fixed base plate. The tops of the two fixing frames are respectively rotatably connected to the outer walls of both ends of one side of the placement plate.

[0012] Preferably, the fixed base plate has movable grooves at both ends of its top, the inner walls of the two movable grooves are rotatably connected to two adjusting screws, and the inner walls of the two movable grooves are movably connected to the outer walls of two movable seats.

[0013] Preferably, the outer wall of the fixed base plate away from the fixed frame is rotatably connected to the rotating worm gear, one end of the outer wall of the fixed base plate is fixedly connected to the servo motor, and the servo motor and the rotating worm gear are connected by an output shaft transmission.

[0014] Preferably, the bottom ends of the placement plate away from the fixing frame are fixedly installed with fixing seats, and the two fixing seats are respectively rotatably connected to the top of the two traction plates.

[0015] Preferably, a fixed shaft is fixedly installed on the outer walls of both ends of the placement plate, and a connecting shaft is fixedly installed on the outer walls of both ends of the barrier plate. The outer sides of the two fixed shafts are rotatably connected to the cylinder body portions of the two second hydraulic cylinders, and the outer walls of the two connecting shafts are rotatably connected to the output shaft portions of the two second hydraulic cylinders.

[0016] Preferably, the clamping mechanism includes a mounting groove, which is formed on the inner wall of the barrier plate, and the middle position of the inner wall of the mounting groove is fixedly connected to the first hydraulic cylinder.

[0017] Preferably, sliders are fixedly installed on the outer walls of both clamping plates near the barrier plate, and the two sliders are fixedly connected to the two output ends of the first hydraulic cylinder, respectively. The outer walls of the two sliders are movably connected to the two ends of the inner wall of the mounting groove.

[0018] Preferably, when the elastic diaphragm is compressed, the elastic diaphragm is concave downward into an arc shape and sinks into the concave groove, and the upper end surface of the elastic diaphragm is lower than the upper end surface of the placement plate by a difference of 0.1 to 1 mm.

[0019] Preferably, the adsorption pore is a conical pore, with the end with a smaller pore diameter connected to a concave groove and the end with a larger pore diameter connected to the atmosphere.

[0020] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0021] The distance between the two clamping plates can be adjusted by the operation of the first hydraulic cylinder, allowing the two clamping plates to clamp and fix the precast slab, keeping the precast slab stable on top of the placement plate. The servo motor, through the meshing of the rotating worm and the driven worm wheel, causes the two adjusting screws to rotate, which in turn drives the two movable seats to move. Under the traction of the traction plate, the placement plate rotates inside the fixed frame, allowing the tilt angle of the placement plate to be adjusted. When the placement plate rotates to its maximum angle, the two second hydraulic cylinders push the barrier plate to rotate on one side of the outer wall of the placement plate, allowing the clamping mechanism to drive the precast slab to continue rotating, thus flipping the precast slab. This makes flipping the precast slab more convenient and keeps it stable during the flipping process, preventing the precast slab from slipping off the top of the placement plate and avoiding damage from falling, thus ensuring a safe working environment.

[0022] The movable slot limits the movement of the movable seat, ensuring its stability during movement. This allows the traction plate to stably adjust the tilt angle of the placement plate. Simultaneously, the mounting slot limits the movement of the slider, enabling the clamping plate to stably clamp and fix the precast slab. The fixed shaft and connecting shaft are rotatably connected to the second hydraulic cylinder, allowing the second hydraulic cylinder to stably adjust the tilt angle of the clamping mechanism, thus enabling the clamping mechanism to stably rotate the precast slab. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 is a left vertical sectional view of the present invention.

[0026] Figure 3 is a three-dimensional structural diagram of the fixing mechanism of the present invention.

[0027] Figure 4 is an exploded three-dimensional view of the placement mechanism of the present invention from a bottom angle.

[0028] Figure 5 is an exploded view of the three-dimensional structure of the clamping mechanism of the present invention.

[0029] Figure 6 is a cross-sectional view of the placement plate of the present invention.

[0030] Figure 7 is a schematic diagram of the structure of the elastic diaphragm in Figure 6 after being compressed.

[0031] Figure 8 is a schematic diagram of the structure with elastic support ridges inside the elastic diaphragm.

[0032] Explanation of reference numerals in the attached drawings: 1. Fixing mechanism; 101. Fixed base plate; 102. Fixed frame; 103. Movable groove; 2. Placement mechanism; 201. Adjusting screw; 202. Driven worm gear; 203. Rotating worm; 204. Servo motor; 205. Movable seat; 206. Traction plate; 207. Fixed seat; 208. Placement plate; 209. Fixed shaft; 3. Clamping mechanism; 301. Barrier plate; 302. Mounting groove; 303. First hydraulic cylinder; 304. Slider; 305. Clamping plate; 306. Connecting shaft; 307. Second hydraulic cylinder; 41. Concave groove; 42. Connecting hole; 43. Mounting ring; 44. Elastic diaphragm; 45. Adsorption hole; 46. Elastic support ridge. Detailed Implementation

[0033] This invention provides a precast slab flipping device as shown in Figure 1, including a fixing mechanism 1, and further comprising:

[0034] The placement mechanism 2 is located on top of the fixing mechanism 1 and is used for placing, flipping, and loading / unloading precast slabs.

[0035] The clamping mechanism 3 is located on top of the placement mechanism 2 and is used to clamp the precast slab and further flip it.

[0036] To facilitate the flipping of the precast slab, as shown in Figures 2 and 4, the placement mechanism 2 includes two adjusting screws 201 and a rotating worm gear 203. The two adjusting screws 201 are respectively disposed on the inner walls of the top two ends of the fixing mechanism 1. A driven worm gear 202 is fixedly sleeved on one side of the outer wall of each adjusting screw 201. The rotating worm gear 203 is disposed on one side of the outer wall of the fixing mechanism 1. A servo motor 204 is disposed at one end of the rotating worm gear 203. The rotating worm gear 203 meshes with the two driven worm gears 202. The outer sides of the two adjusting screws 201 are threaded. The device is equipped with two movable seats 205, and each movable seat 205 has a traction plate 206 rotatably mounted on its top. The traction plate 206 has a placement plate 208 rotatably mounted on the top of the fixed mechanism 1. The servo motor 204 operates through the meshing between the rotating worm gear 203 and the driven worm wheel 202, causing the two adjusting screws 201 to rotate, which in turn drives the movable seats 205 to move. Under the traction of the traction plate 206, the tilt angle of the placement plate 208 can be adjusted, thereby allowing the precast slab to be flipped.

[0037] To ensure the precast slab remains stable on top of the placement plate 208 and can be further flipped, as shown in Figures 2 and 5, the clamping mechanism 3 includes a barrier plate 301. The barrier plate 301 is rotatably mounted on the outer wall of one side of the placement plate 208. A first hydraulic cylinder 303 is provided on the inner wall of the barrier plate 301. Clamping plates 305 are provided at both output ends of the first hydraulic cylinder 303. Second hydraulic cylinders 307 are provided between the outer walls of both ends of the barrier plate 301 and the placement plate 208. The operation of the first hydraulic cylinder 303 enables the two clamping plates 305 to clamp and fix the precast slab. The operation of the two second hydraulic cylinders 307 can push the barrier plate 301 to rotate, so that the clamping mechanism 3 can drive the precast slab to be further flipped, and the precast slab can remain stable during the flipping process.

[0038] To ensure the stability of the placement plate 208 during rotation, as shown in Figures 2-4, the fixing mechanism 1 includes a fixed base plate 101. Fixing brackets 102 are fixedly installed at both ends of the outer wall of one side of the fixed base plate 101. The tops of the two fixing brackets 102 are rotatably connected to the outer walls of both ends of one side of the placement plate 208. The two fixing brackets 102 are rotatably connected to the outer walls of both ends of the placement plate 208, so that the placement plate 208 can stably drive the precast slab to rotate.

[0039] To ensure the stability of the movable seat 205 during movement, as shown in Figures 2 and 3, movable grooves 103 are provided at both ends of the top of the fixed base plate 101. The inner walls of the two movable grooves 103 are rotatably connected to the two adjusting screws 201, and the inner walls of the two movable grooves 103 are movably connected to the outer walls of the two movable seats 205. The movable grooves 103 can limit the movement of the movable seat 205, so that the traction plate 206 can stably push the placement plate 208 to adjust the tilt angle, thereby facilitating the flipping of the precast plate.

[0040] To provide power for the rotation of the placement plate 208, as shown in Figures 2-4, the outer wall of the fixed base plate 101 away from the fixed frame 102 is rotatably connected to the rotating worm gear 203. One end of the outer wall of the fixed base plate 101 is fixedly connected to the servo motor 204. The servo motor 204 and the rotating worm gear 203 are connected by an output shaft. Fixed seats 207 are fixedly installed at both ends of the bottom side of the placement plate 208 away from the fixed frame 102. The two fixed seats 207 are rotatably connected to the tops of the two traction plates 206 respectively. The fixed base plate 101 can install and fix the rotating worm gear 203 and the servo motor 204. The servo motor 204 works through the meshing action between the rotating worm gear 203 and the two driven worm wheels 202, causing the two adjusting screws 201 to rotate. Then, under the rotational connection between the traction plate 206 and the fixed seat 207, the tilt angle of the placement plate 208 can be easily adjusted.

[0041] To facilitate the flipping of the clamping mechanism 3, as shown in Figures 2 and 4-5, fixed shafts 209 are fixedly installed on the outer walls of both ends of the placement plate 208, and connecting shafts 306 are fixedly installed on the outer walls of both ends of the barrier plate 301. The outer sides of the two fixed shafts 209 are rotatably connected to the cylinder bodies of the two second hydraulic cylinders 307, and the outer walls of the two connecting shafts 306 are rotatably connected to the output shafts of the two second hydraulic cylinders 307. The fixed shafts 209 and connecting shafts 306 can be used to install adjacent second hydraulic cylinders 307. The operation of the two second hydraulic cylinders 307 can push the barrier plate 301 and the clamping plate 305 to flip.

[0042] To ensure the stability of the clamping plate 305 during adjustment, as shown in Figures 2 and 5, the clamping mechanism 3 includes a mounting groove 302. The mounting groove 302 is formed on the inner wall of the barrier plate 301. The middle position of the inner wall of the mounting groove 302 is fixedly connected to the first hydraulic cylinder 303. Slider 304 is fixedly installed on the outer wall of the two clamping plates 305 near the barrier plate 301. The two sliders 304 are respectively fixedly connected to the two output ends of the first hydraulic cylinder 303. The outer walls of the two sliders 304 are respectively movably connected to the two ends of the inner wall of the mounting groove 302. The mounting groove 302 can limit the movement of the sliders 304, so that the clamping plate 305 remains stable during adjustment, and the clamping plate 305 can stably clamp and fix the precast plate.

[0043] The specific implementation method is as follows: During the precast slab production process, it needs to be flipped and placed on top of the placement plate 208. The first hydraulic cylinder 303 operates, causing the two sliders 304 to move along the inner wall of the mounting groove 302, thereby adjusting the distance between the two clamping plates 305. This allows the two clamping plates 305 to clamp and fix the outer walls of both ends of the precast slab. At the same time, the blocking plate 301 can intercept the precast slab. Then, the servo motor 204 operates, causing the rotating worm gear 203 to rotate. Through the transmission action between the worm gear and the worm wheel, the two driven worm wheels 202 rotate, which in turn causes the two adjusting screws 201 to rotate. This drives the two movable seats 205 to move along the inner wall of the adjacent movable groove 103 towards the rotating worm gear 203 on their outer sides. The movement, driven by the traction plate 206, causes the placement plate 208 to rotate around its connection point with the fixing frame 102, thereby adjusting the tilt angle of the placement plate 208. When the placement plate 208 rotates to its maximum angle, the two second hydraulic cylinders 307 operate to push the barrier plate 301 to rotate on one side of the outer wall of the placement plate 208, thereby causing the clamping plate 305 to continue rotating the precast slab, further flipping the precast slab. This makes flipping the precast slab more convenient, preventing the precast slab from falling directly due to the rotation of the placement plate 208, avoiding damage to the precast slab, and ensuring a safe working environment. This embodiment specifically solves the problem of precast slabs easily falling and being damaged during the flipping process in the prior art.

[0044] Referring again to Figures 6 and 7, a concave groove 41 is provided in the middle of the placement plate 208. The concave groove 41 is provided with a connecting hole 42 for connecting to an external pneumatic mechanism. A mounting ring 43 is provided at the concave groove 41, and an elastic diaphragm 44 is provided on the mounting ring 43. The upper end of the elastic diaphragm 44 protrudes upward in an arc shape and protrudes from the upper surface of the placement plate 208. The height L of the protrusion of the elastic diaphragm 44 is 10 to 20 mm, preferably 12 mm. This provides a flexible buffer support for the precast slab during placement, preventing damage to the precast slab. Moreover, the elastic properties of the elastic diaphragm 44 ensure that it is pressed into the concave groove 41 when the precast slab is placed. When the elastic diaphragm 44 is compressed, it concaves downward into an arc shape and sinks into the concave groove 41. The depth P of the sinking is 2 to 8 mm, preferably 5 mm. The upper surface of the elastic diaphragm 44 is lower than the upper surface of the placement plate 208, with a difference Q of 0.1 to 1 mm, preferably 0.5 mm. In this design, the thickness H of the elastic diaphragm 44 should be less than the depth D of the mounting ring 43, so that the elastic diaphragm 44 and the area of ​​the placement plate 208 on the outer periphery of the mounting ring 43 transition smoothly. This difference facilitates cleaning and ensures the flatness and tightness between the precast plate and the placement plate 208. Since the precast plate is in a tight fit when in contact with the elastic diaphragm 44, and when the elastic diaphragm 44 is compressed and sinks into the concave groove 41, a certain space is formed, which can achieve natural adsorption. However, this adsorption performance is relatively low. At this time, it can be combined with the connecting hole 42 to connect to an external air pressure mechanism to form negative pressure adsorption.

[0045] The elastic diaphragm 44 is provided with multiple adsorption holes 45, which are conical holes. The end with the smaller diameter hole communicates with the concave groove 41, and the end with the larger diameter hole communicates with the atmosphere. The adsorption holes 45 are more conducive to negative pressure adsorption, and the conical shape of the holes increases the release of this adsorption capacity. In particular, when the elastic diaphragm 44 is convex upward, the diameter of the lower end of the adsorption hole 45 is smaller, which can be set to 0.2 to 0.5 mm or 0.5 to 1 mm. This diameter is also conducive to cleaning. When the elastic diaphragm 44 is concave downward, the diameter of the lower end of the adsorption hole 45 increases accordingly, which can be set to 1 to 2 mm. This change in diameter can effectively increase the adsorption performance of the precast slab under negative pressure. The elastic diaphragm 44 can be a rubber sheet or a nylon sheet, or an elastic support rib 46 can be sandwiched in the middle of the rubber sheet, as shown in Figure 8. The elastic support rib 46 can effectively maintain the convex and concave state, thereby achieving a better buffering and adsorption effect.

[0046] When cleaning is required, simply use the air pressure mechanism to backflush to remove dust from the elastic diaphragm 44. When the elastic diaphragm 44 is convex upwards, the diameter of the lower end of the adsorption hole 45 is smaller, which effectively prevents dust from entering the concave groove 41.

[0047] In addition, when the precast slab is separated from the placement slab, the negative pressure can be removed to achieve rapid unloading, or airflow can be used to achieve rapid unloading of the precast slab.

[0048] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A precast slab flipping device, comprising a fixing mechanism (1), characterized in that, Also includes: The placement mechanism (2) is located on top of the fixing mechanism (1) and is used for placing, flipping and loading / unloading precast slabs. A clamping mechanism (3) is provided on top of the placement mechanism (2) for clamping the precast slab and further flipping it. The placement mechanism (2) includes two adjusting screws (201) and a rotating worm (203). The two adjusting screws (201) are respectively disposed on the inner walls of the top two ends of the fixed mechanism (1). A driven worm wheel (202) is fixedly sleeved on one side of the outer wall of each of the two adjusting screws (201). The rotating worm (203) is disposed on one side of the outer wall of the fixed mechanism (1). A servo motor (204) is disposed at one end of the rotating worm (203). The rotating worm (203) meshes with the two driven worm wheels (202). Movable seats (205) are threaded onto the outer sides of each of the two adjusting screws (201). A traction plate (206) is rotatably mounted on the top of each of the two movable seats (205). A placement plate (208) is rotatably mounted on the top of the fixed mechanism (1) on the top of the traction plate (206). The clamping mechanism (3) includes a baffle plate (301), which is rotatably mounted on the outer wall of one side of the placement plate (208). A first hydraulic cylinder (303) is provided on the inner wall of the baffle plate (301). Clamping plates (305) are provided at both output ends of the first hydraulic cylinder (303). A second hydraulic cylinder (307) is provided between the outer walls of both ends of the baffle plate (301) and the placement plate (208). A concave groove (41) is provided in the middle of the placement plate (208). The concave groove (41) is provided with a connecting hole (42) for connecting to an external air pressure mechanism. An installation ring (43) is provided at the concave groove (41). An elastic diaphragm (44) is provided on the installation ring (43). The upper end of the elastic diaphragm (44) protrudes upward in an arc shape and protrudes from the upper surface of the placement plate (208). The height of the protrusion of the elastic diaphragm (44) is 10 to 20 mm. A plurality of adsorption holes (45) are provided on the elastic diaphragm (44). When the elastic diaphragm (44) is compressed, the elastic diaphragm (44) is concave downward into an arc shape and falls into the concave groove (41), and the upper end surface of the elastic diaphragm (44) is lower than the upper end surface of the placement plate (208) by 0.1 to 1 mm. The adsorption hole (45) is a conical hole. The end with a smaller diameter is connected to the concave groove (41), and the end with a larger diameter is connected to the atmosphere. When the elastic diaphragm is recessed downward, the diameter of the lower end of the adsorption hole will increase accordingly, thereby increasing the negative pressure adsorption performance of the precast plate. The elastic diaphragm is sandwiched in the middle with an elastic support ridge, which achieves a better buffering and adsorption effect.

2. The precast slab flipping device according to claim 1, characterized in that: The fixing mechanism (1) includes a fixing base plate (101), and fixing brackets (102) are fixedly installed at both ends of the outer wall of one side of the fixing base plate (101). The tops of the two fixing brackets (102) are rotatably connected to the outer walls of both ends of one side of the placement plate (208).

3. The precast slab flipping device according to claim 2, characterized in that: The fixed base plate (101) has movable grooves (103) at both ends of its top. The inner walls of the two movable grooves (103) are rotatably connected to the two adjusting screws (201) respectively, and the inner walls of the two movable grooves (103) are movably connected to the outer walls of the two movable seats (205) respectively.

4. A precast slab flipping device according to claim 2, characterized in that: The outer wall of the fixed base plate (101) away from the fixed frame (102) is rotatably connected to the rotating worm gear (203). The outer wall of one end of the fixed base plate (101) is fixedly connected to the servo motor (204). The servo motor (204) and the rotating worm gear (203) are connected by an output shaft drive.

5. A precast slab flipping device according to claim 2, characterized in that: The bottom ends of the placement plate (208) away from the fixing frame (102) are fixedly installed with fixing seats (207), and the two fixing seats (207) are rotatably connected to the top of the two traction plates (206).

6. A precast slab flipping device according to claim 1, characterized in that: Fixed shafts (209) are fixedly installed on the outer walls of both ends of the placement plate (208), and connecting shafts (306) are fixedly installed on the outer walls of both ends of the barrier plate (301). The outer sides of the two fixed shafts (209) are rotatably connected to the cylinder body of the two second hydraulic cylinders (307), and the outer walls of the two connecting shafts (306) are rotatably connected to the output shaft of the two second hydraulic cylinders (307).

7. A precast slab flipping device according to claim 1, characterized in that: The clamping mechanism (3) includes a mounting groove (302), which is formed on the inner wall of the barrier plate (301). The middle position of the inner wall of the mounting groove (302) is fixedly connected to the first hydraulic cylinder (303).

8. A precast slab flipping device according to claim 7, characterized in that: Both clamping plates (305) have sliders (304) fixedly installed on the outer wall of the side near the barrier plate (301). The two sliders (304) are fixedly connected to the two output ends of the first hydraulic cylinder (303), and the outer walls of the two sliders (304) are movably connected to the two ends of the inner wall of the mounting groove (302).

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