A device for transferring and placing a molded guardrail in multiple directions

Abstract

The present application belongs to the technical field of guardrail transfer and placement. The purpose is to provide a shaped guardrail transfer and multi-directional placement device, which has high transfer efficiency and can adjust the direction of the guardrail while transferring without turning or U-turning. The technical scheme adopted includes a trolley, lifting and overturning mechanisms, a first power roller conveyor, a second power roller conveyor, a third power roller conveyor, and a lifting and rotating mechanism. The trolley includes a trolley body and four wheels installed at the bottom of the trolley body. Two sets of lifting and overturning mechanisms are symmetrically installed at the front and rear ends of the trolley body. The first, second, and third power roller conveyors are installed in sequence on the top surface of the trolley body. The second power roller conveyor is connected to the trolley body through the lifting and rotating mechanism. The present application is used for transferring and placing New Jersey guardrails and can realize loading and unloading in four directions without turning or U-turning. The operation mode is flexible and can adapt to various complex sites and placement requirements.

Description

Technical Field

[0001] This invention relates to a device for transporting and placing molded guardrails in multiple directions, belonging to the field of guardrail transport and placement technology. Background Technology

[0002] Molded guardrails, such as New Jersey guardrails, have a need for transfer and placement at the end of the production line, in the storage area, or at the construction site. They often need to be placed frequently at multiple locations. The traditional method is to handle them manually or use forklifts or cranes, which has the following disadvantages.

[0003] Manual handling requires multiple workers, is slow, and involves high labor costs and intensity. While using forklifts and cranes reduces the manpower burden, they can only transport one item at a time, resulting in low efficiency. Furthermore, vehicles require maneuvering space for turning and maneuvering, making them unsuitable for narrow areas. Clearly, traditional methods suffer from low overall cycle efficiency, and their primary function is "transfer," not "precise placement." Precisely placing guardrails at specific angles (e.g., sideways against a wall, or turning them in a corner) is extremely difficult, usually requiring manual adjustment, which is both dangerous and time-consuming. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a molded guardrail transfer and multi-directional placement device with high transfer efficiency and the ability to automatically adjust the guardrail position during transfer without turning or turning around.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a shaped guardrail transfer and multi-directional placement device, comprising: a trolley, a lifting and tilting mechanism, a first powered roller conveyor belt, a second powered roller conveyor belt, a third powered roller conveyor belt, and a lifting and rotating mechanism. The trolley includes a vehicle body and four wheels installed at the bottom of the vehicle body. Two sets of lifting and tilting mechanisms are symmetrically installed at the front and rear ends of the vehicle body. The first powered roller conveyor belt, the second powered roller conveyor belt, and the third powered roller conveyor belt are sequentially installed on the top surface of the vehicle body. The second powered roller conveyor belt is connected to the vehicle body through the lifting and rotating mechanism. The lifting and tilting mechanism includes a support frame, which is vertically arranged with two inverted L-shaped grooved tracks on both sides. Two parallel drive sprockets are installed at the bottom of the support frame, and two parallel driven sprockets are installed at the top. The corresponding drive sprockets and driven sprockets are each connected by a chain. A lifting motor for driving the two drive sprockets is installed at the bottom of the support frame. The tilting shaft is horizontally arranged, fixed in the middle to two chains, and slidably installed in a grooved track at each end through a slider. Multiple rocker arms are distributed on the tilting shaft, and guardrail support frames are connected to the rocker arms. At least two horizontally arranged forks are fixed on the guardrail support frames. The support frames of the two lifting and tilting mechanisms are respectively fixed to the front and rear end faces of the vehicle body; The lifting and rotating mechanism includes an electric push rod, a lifting base plate, and a turntable mechanism. A lifting window is provided on the top of the vehicle body. The lifting base plate is located at the lifting window and its shape is adapted to the shape of the lifting window. Four vertical electric push rods are provided between the lifting base plate and the bottom surface of the vehicle body. The turntable mechanism is installed on the lifting base plate, and the second power roller conveyor belt is fixed on the turntable mechanism.

[0006] Preferably, there are four sets of lifting and turning mechanisms, with the other two sets symmetrically installed on both sides of the vehicle body, their positions adapted to the position of the second power roller conveyor belt.

[0007] Preferably, each of the first, second, and third powered roller conveyors has a fence installed on both sides.

[0008] Preferably, the surfaces of the slider that contact the grooved track are provided with ball bearings.

[0009] Preferably, the support surface of the fork plate in the lifting and flipping mechanism is densely covered with multiple vacuum suction cups.

[0010] Preferably, a telescopic outrigger is installed at each of the four corners of the bottom of the vehicle body. The telescopic outrigger includes a horizontal telescopic arm and a vertical telescopic leg. One end of the horizontal telescopic arm is fixed to the bottom of the vehicle body, and the other end is fixed with the vertical telescopic leg.

[0011] Preferably, the vehicle is an automated guided vehicle (AGV), and all four wheels are AGV steering wheels.

[0012] Preferably, the present invention further includes a PLC controller, wherein the lifting motor, the first powered roller conveyor belt, the second powered roller conveyor belt, the third powered roller conveyor belt, the electric push rod, the turntable mechanism, the vacuum suction cup, the horizontal telescopic arm, and the vertical telescopic leg are all electrically or signal-connected to the PLC controller.

[0013] Compared with the prior art, the present invention has the following beneficial effects.

[0014] 1. This invention features lifting and tilting mechanisms around the vehicle body, dividing the conveyor belt on the roof into three sections. A lifting and rotating mechanism is also installed under the second powered roller conveyor belt, allowing the second powered roller conveyor belt to rotate without interference. This enables the guardrail's orientation to be precisely controlled in the horizontal plane before final placement, thus achieving direct unloading from the side (90° rotation) or rear (180° rotation). This invention allows for loading and unloading from four directions without turning or making a U-turn, providing flexible operation and adaptability to various complex sites and placement requirements.

[0015] 2. In this invention, loading, unloading, and adjusting the posture of the guardrails can all be achieved by relevant mechanical structures without human assistance. In addition, the trolley adopts an automated guided vehicle, i.e., AGV, which integrates "arrival at the loading point, loading, posture adjustment (flipping, rotating), internal conveying, and multi-directional unloading" into one, realizing one-stop operation and improving work efficiency.

[0016] 3. This invention can transport two or three guardrails at once, reducing the number of trips the equipment makes and making the operation more efficient.

[0017] 4. In this invention, telescopic outriggers are installed at the four corners of the vehicle body to ensure overall stability during loading and unloading; vacuum suction cups provide non-mechanical gripping and release, avoiding damage to the guardrail surface while ensuring the stability of the guardrail during lifting, flipping, and lowering; guardrails are installed on both sides of the three powered roller conveyor belts to ensure safety during the overall movement. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the embodiments will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the lifting and flipping mechanism in this invention.

[0021] Figure 3 This is a side view of the lifting and flipping mechanism in this invention.

[0022] Figure 4 This is a top view of the lifting and flipping mechanism in this invention.

[0023] Figure 5 This is a perspective view of the lifting and flipping mechanism in this invention.

[0024] Figure 6 This is a schematic diagram of the lifting and rotating mechanism in this invention.

[0025] Figure 7 This is a schematic diagram of the working state of the present invention. Figure 1 .

[0026] Figure 8 This is a schematic diagram of the working state of the present invention. Figure 2 .

[0027] Figure 9 This is a schematic diagram of the working state of the present invention. Figure 3 .

[0028] Figure 10This is a schematic diagram of the working state of the present invention. Figure 4 .

[0029] Figure 11 This is a schematic diagram of the working state of the present invention. Figure 5 .

[0030] In the diagram: 1 is the trolley, 101 is the trolley body, 102 is the wheel, 103 is the lifting window, 2 is the lifting and tilting mechanism, 201 is the support frame, 202 is the grooved track, 203 is the driving sprocket, 204 is the driven sprocket, 205 is the chain, 206 is the lifting motor, 207 is the tilting shaft, 208 is the slider, 209 is the rocker arm, 210 is the guardrail support frame, 211 is the fork plate, 212 is the vacuum suction cup, 3 is the first powered roller conveyor belt, 4 is the second powered roller conveyor belt, 5 is the third powered roller conveyor belt, 6 is the lifting and rotating mechanism, 601 is the electric push rod, 602 is the lifting base plate, 603 is the turntable mechanism; 7 is the fence, 8 is the telescopic outrigger, 801 is the horizontal telescopic arm, and 802 is the vertical telescopic leg. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] The present invention provides the following embodiments.

[0033] Example 1 like Figure 1 As shown, the present invention provides a molded guardrail transfer and multi-directional placement device, comprising: a trolley 1, a lifting and turning mechanism 2, a first powered roller conveyor belt 3, a second powered roller conveyor belt 4, a third powered roller conveyor belt 5, and a lifting and rotating mechanism 6. The trolley 1 includes a vehicle body 101 and four wheels 102 installed at the bottom of the vehicle body 101. Two sets of lifting and turning mechanisms 2 are symmetrically installed at the front and rear ends of the vehicle body 101. The first powered roller conveyor belt 3, the second powered roller conveyor belt 4, and the third powered roller conveyor belt 5 are sequentially installed on the top surface of the vehicle body 101. The second powered roller conveyor belt 4 is connected to the vehicle body 101 through the lifting and rotating mechanism 6. like Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the lifting and tilting mechanism 2 includes a support frame 201, which is vertically arranged with two inverted L-shaped grooved tracks 202 arranged opposite to each other on both sides. Two parallel drive sprockets 203 are installed at the bottom of the support frame 201, and two parallel driven sprockets 204 are installed at the top. The corresponding drive sprockets 203 and driven sprockets 204 are each connected by a chain 205. The lifting motor 206 for driving the two drive sprockets 203 to rotate is installed at the bottom of the support frame 201. The tilting shaft 207 is horizontally arranged, fixed in the middle on the two chains 205, and slidably installed in a grooved track 202 at both ends through a slider 208. Multiple rocker arms 209 are distributed on the tilting shaft 207, and guardrail support frames 210 are connected to the rocker arms 209. At least two horizontally arranged forks 211 are fixed on the guardrail support frames 210. The support frame 201 of the two sets of lifting and tilting mechanisms 2 is fixed on the front and rear end faces of the vehicle body 101, respectively. like Figure 6 As shown, the lifting and rotating mechanism 6 includes an electric push rod 601, a lifting base plate 602, and a turntable mechanism 603. A lifting window 103 is provided on the top of the vehicle body 101. The lifting base plate 602 is located at the lifting window 103 and its shape is adapted to the shape of the lifting window 103. Four vertical electric push rods 601 are provided between the lifting base plate 602 and the bottom surface of the vehicle body 101. The turntable mechanism 603 is installed on the lifting base plate 602, and the second power roller conveyor belt 4 is fixed on the turntable mechanism 603.

[0034] In the lifting and tilting mechanism 2, the height of the driven sprocket 204 is adapted to the height of the turning point of the grooved track 202. When the tilting shaft 207 turns on the driven sprocket 204 along with the chain 205, both ends of the tilting shaft 207 turn within the grooved track 202. Simultaneously, the height of the grooved track 202, the height of the first power roller conveyor belt 3, the dimensions of the rocker arm 209, and the dimensions of the guardrail support frame 210 must be coordinated to ensure the smooth transfer of the guardrail.

[0035] In the lifting and flipping mechanism 2, the slider 208 is in contact with three sides of the grooved track 202 to ensure the smooth lifting of the flipping shaft 207. Since the slider 208 needs to turn within the L-shaped grooved track 202, the corners and edges of the square slider 208, especially the corners and edges located on the outside of the turn, need to be smoothly rounded. In addition, the width of the grooved track 202 at the turn needs to be appropriately increased and smoothly connected with the straight section of the track to facilitate the turning of the slider 208.

[0036] The lifting motor 206 drives the chain 205 through the drive sprocket 203. The chain 205 drives the tilting shaft 207 to rise along the grooved track 202. The guardrail support frame 210 and the fork plate 211 rise accordingly. When the tilting shaft 207 reaches the driven sprocket 204, it drives the guardrail support frame 210 and the fork plate 211 to rotate 90°. After the rotation, the height of the guardrail support frame 210 is adapted to the height of the first power roller conveyor belt 3, and the distance between the fork plate 211 and the first power roller conveyor belt 3 can be 1 / 2 of the guardrail height. In this way, the guardrail can be smoothly transferred.

[0037] In the lifting and rotating mechanism 6, the electric push rod 601 can push the lifting base plate 602 together with the turntable mechanism 603 and the second power roller conveyor belt 4 to rise. Then, the second power roller conveyor belt 4 can rotate 180° under the drive of the turntable mechanism 603, so that the posture of the guardrail on it can be adjusted so that it can be smoothly supported by the lifting and flipping mechanism 2 located at the rear end of the vehicle body 101.

[0038] There are four sets of the lifting and turning mechanism 2. The other two sets of lifting and turning mechanisms 2 are symmetrically installed on both sides of the vehicle body 101, and their positions are adapted to the positions of the second power roller conveyor belt 4.

[0039] The second powered roller conveyor belt 4 is lifted and rotated 90° under the action of the lifting and rotating mechanism 6, so that it can cooperate with the lifting and tilting mechanisms 2 on both sides of the vehicle body 101. Considering the overall length of the invention, the length of the second powered roller conveyor belt 4 may be less than its width. In this case, the second powered roller conveyor belt 4 cannot fall back to its original position after rotating 90°. Therefore, the height of the lifting and tilting mechanisms 2 on both sides of the vehicle body 101 needs to be appropriately increased to ensure that it can cooperate smoothly with the second powered roller conveyor belt 4 to transfer the guardrail.

[0040] Each of the first powered roller conveyor belt 3, the second powered roller conveyor belt 4, and the third powered roller conveyor belt 5 has a fence 7 installed on both sides. The width of the first powered roller conveyor belt 3, the second powered roller conveyor belt 4, and the third powered roller conveyor belt 5 must be compatible with the length of the guardrail to be transferred.

[0041] The slider 208 and the grooved track 202 are both equipped with ball bearings, which makes the lifting and turning of the flip shaft 207 smoother.

[0042] The lifting and flipping mechanism 2 has multiple vacuum suction cups 212 densely distributed on the support surface of the fork plate 211. Each vacuum suction cup 212 has a built-in vacuum machine, which can be fixed to the guardrail support frame 210 or the support frame body 201.

[0043] A telescopic outrigger 8 is installed at each of the four corners of the bottom of the vehicle body 101. The telescopic outrigger 8 includes a horizontal telescopic arm 801 and a vertical telescopic leg 802. One end of the horizontal telescopic arm 801 is fixed to the bottom of the vehicle body 101, and the other end is fixed with the vertical telescopic leg 802.

[0044] The vehicle 1 is an automated guided vehicle, i.e., an AGV, and the four wheels 102 are all AGV steering wheels. The use of AGV steering wheels makes the present invention more flexible.

[0045] The present invention also includes a PLC controller. The lifting motor 206, the first power roller conveyor belt 3, the second power roller conveyor belt 4, the third power roller conveyor belt 5, the electric push rod 601, the turntable mechanism 603, the vacuum suction cup 212, the horizontal telescopic arm 801 and the vertical telescopic leg 802 are all electrically or signal-connected to the PLC controller.

[0046] This invention can be controlled remotely, or by setting control buttons or a touch screen on the vehicle body 101. It can also be automatically controlled in conjunction with various position sensors, pressure sensors, etc.

[0047] like Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 As shown, the working process of the present invention includes transferring and placing the guardrail with one end up and the other end down, one end up and one side down, and one side up and one end down. The specific process is as follows.

[0048] 1. One end of the guardrail is on top, and the other end is on the bottom: The trolley 1 is started and arrives at the New Jersey guardrail to be transferred. The fork plate 211 located at the cargo end of the trolley 1 is inserted into the recess on the lower side of the guardrail. Then, the horizontal telescopic arms 801 at the four corners of the vehicle body 101 are extended, and then the vertical telescopic legs 802 extend to support the ground. After the support is stable, the lifting motor 206 is started. The drive sprocket 203 drives the driven sprocket 204 to rotate. The chain 205 drives the tilting shaft 207 to rise along the grooved track 202. The tilting shaft 207 drives the guardrail support frame 210 and the fork plate 211 on it to rise through the rocker arm 209, thereby lifting the guardrail. The vacuum suction cup 212 on the support surface of the fork plate 211 is activated after contacting the bottom of the guardrail and sucking the bottom of the guardrail. The guardrail is lifted along the trough track 202. Upon reaching the bend in the trough track 202, as the tilting shaft 207 rotates, the guardrail support frame 210 and fork plate 211 rotate the guardrail 90°. The upper part of the guardrail rests on the first powered roller conveyor belt 3, the vacuum suction cup 212 releases its grip, and the guardrail is completely brought onto the first powered roller conveyor belt 3. At this point, the retractable telescopic outrigger 8 is retracted, and the trolley 1 is started, moving the trolley to the desired position for the guardrail. After the telescopic outrigger 8 provides stable support, the guardrail is transferred from the first powered roller conveyor belt 3 to the second powered roller conveyor belt 4. Then, the electric push rod 601 in the lifting and rotating mechanism 6 is activated to lift the second powered roller conveyor belt 4 and the guardrail on it. Finally, the turntable mechanism 603 is activated to rotate 180°, lowering the electric push rod 601 to its original position, and the second powered roller conveyor belt 4 is started in reverse. The powered roller conveyor belt 4 transports the guardrail to the third powered roller conveyor belt 5. At this time, the guardrail support frame 210 and fork plate 211 in the lifting and tilting mechanism 2 at the unloading end of the vehicle body 101 are in a tilted state waiting for the guardrail. The third powered roller conveyor belt 5 transfers the guardrail to the guardrail support frame 210 at the unloading end and presses the bottom of the guardrail against the fork plate 211. The vacuum suction cup 212 on the fork plate 211 is activated to suck up the guardrail. The lifting motor 206 drives the chain 205 through the drive sprocket 203, thereby driving the tilting shaft 207, guardrail support frame 210, fork plate 211 and guardrail to tilt downward and descend. After the guardrail contacts the ground, the vacuum suction cup 212 releases the guardrail, the telescopic outrigger 8 retracts, and the trolley 1 retreats and removes the fork plate 211, thus completing one transfer and placement of guardrail with loading at one end and unloading at the other end.

[0049] To improve efficiency, this invention can transfer three guardrails at once. After the lifting and turning mechanism 2 at the loading point transfers one guardrail to the first powered roller conveyor belt 3, the trolley 1 does not move to transfer it immediately. Instead, it transfers the guardrail to the second powered roller conveyor belt 4, lifts and rotates it, and then transfers it to the third powered roller conveyor belt 4. Then, the trolley 1 adjusts its posture, and the lifting and turning mechanism 2 at the loading point transfers the second guardrail to the first powered roller conveyor belt 3. After transferring it to the second powered roller conveyor belt 4, the trolley 1 adjusts its posture again, and the lifting and turning mechanism 2 at the loading point transfers the third guardrail to the first powered roller conveyor belt 3. Then, the trolley 1 moves to the intended placement location of the guardrail and unloads and places the three guardrails in sequence by the lifting and turning mechanism 2 at the unloading end.

[0050] II. One end of the guardrail is at the top, and the other end is at the bottom: The loading process is the same as above. When unloading is required, the guardrail reaches the second powered roller conveyor belt 4, and the electric push rod 601 in the lifting and rotating mechanism 6 lifts the second powered roller conveyor belt 4 and the guardrail on it. Then, the turntable mechanism 603 rotates 90° according to the direction of the unloading side and lowers the electric push rod 601. At this time, the guardrail support frame 210 and fork plate 211 in the lifting and turning mechanism 2 on the unloading side are in a flipped state waiting for the guardrail. The second powered roller conveyor belt 4 is started to transport the guardrail to the unloading side, and the guardrail is transferred to the guardrail support frame 2 on the unloading side. 10. The bottom of the guardrail is pressed against the fork plate 211. The vacuum suction cup 212 on the fork plate 211 is activated to suck up the guardrail. The lifting motor 206 drives the chain 205 through the drive sprocket 203, thereby driving the flip shaft 207, guardrail support frame 210, fork plate 211 and guardrail to flip down and descend. After the guardrail touches the ground, the vacuum suction cup 212 releases the guardrail, the telescopic outrigger 8 retracts, and the AGV steering wheel drives the trolley 1 to move laterally to withdraw from the fork plate 211, thus completing one guardrail transfer with loading at one end and unloading at the other.

[0051] To improve efficiency, this invention can transport two guardrails at once. During loading, the two guardrails are placed sequentially on the first powered roller conveyor belt 3 and the second powered roller conveyor belt 4. Once they reach their intended placement position, they are unloaded sequentially. Alternatively, three guardrails can be transported at once. During loading, the three guardrails are placed sequentially on the first powered roller conveyor belt 3, the second powered roller conveyor belt 4, and the third powered roller conveyor belt 5. Once they reach their intended placement position, the guardrails on the second powered roller conveyor belt 4 are unloaded first, and then the guardrails on the first powered roller conveyor belt 3 and the third powered roller conveyor belt 5 are sequentially transferred to the second powered roller conveyor belt 4 for unloading.

[0052] 3. One side of the guardrail, top and bottom: The loading process is the same as above, except that the lifting and tilting mechanism 2 on the loading side of the trolley 1 needs to be aligned with the guardrail for loading. At the same time, the second powered roller conveyor belt 4 needs to be lifted and rotated 90° under the drive of the lifting and rotating mechanism 6 to prepare to receive the guardrail. After the lifting and tilting mechanism 2 on the loading side lifts and tilts the guardrail, the upper part of the guardrail rests on the second powered roller conveyor belt 4. The vacuum suction cup 212 releases its suction, and the guardrail is brought onto the second powered roller conveyor belt 4. Then, the turntable mechanism 603 drives the second powered roller conveyor belt 4 to rotate 90°, so that the bottom of the guardrail faces the unloading end. The electric push... When lever 601 retracts, the second powered roller conveyor belt 4 becomes flush with the first powered roller conveyor belt 3 and the third powered roller conveyor belt 5. The telescopic outrigger 8 retracts, and after the trolley 1 moves to the intended placement position of the guardrail, the telescopic outrigger 8 provides stable support again. The second powered roller conveyor belt 4, in conjunction with the first powered roller conveyor belt 3 or the third powered roller conveyor belt 5, transports the guardrail to the lifting and tilting mechanism 2 at the unloading end. The lifting and tilting mechanism 2 at the unloading end receives the guardrail and lowers it to the ground. The telescopic outrigger 8 retracts, and the trolley 1 retreats and removes the fork plate 211, thus completing the transfer and placement of the guardrail with loading on one side and unloading on the other.

[0053] To improve efficiency, this invention can transport two guardrails at once. During loading, the two guardrails are placed sequentially on the second powered roller conveyor belt 4 and the first powered roller conveyor belt 3. Once they reach their intended placement position, they are unloaded sequentially. Alternatively, three guardrails can be transported at once. During loading, the three guardrails are placed sequentially on the first powered roller conveyor belt 3, the third powered roller conveyor belt 5, and the second powered roller conveyor belt 4. Once they reach their intended placement position, the three guardrails are unloaded sequentially from the unloading end.

[0054] The present invention has lifting and tilting mechanisms 2 set around the vehicle body 101, dividing the conveyor belt on the roof into three sections, and lifting and rotating mechanisms 6 set under the second power roller conveyor belt 4, so that the loading and unloading positions are flexible and can adapt to various sites and placement requirements.

[0055] Example 2 In this second embodiment, the molded guardrail transfer and multi-directional placement device of the present invention only sets the lifting and flipping mechanism 2 at the front and rear ends of the vehicle body 101, and does not set the lifting and flipping mechanism 2 on the sides of the vehicle body 101. The rest of the structure is the same as in the first embodiment.

[0056] In this second embodiment, the structure is simplified, allowing the guardrail to rotate 180° vertically, making it suitable for situations where only simple relocation of the guardrail is required.

[0057] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A device for transporting and placing molded guardrails in multiple directions, characterized in that... include: The trolley (1), lifting and turning mechanism (2), first power roller conveyor belt (3), second power roller conveyor belt (4), third power roller conveyor belt (5) and lifting and rotating mechanism (6) are provided. The trolley (1) includes a car body (101) and four wheels (102) installed at the bottom of the car body (101). Two sets of lifting and turning mechanisms (2) are symmetrically installed at the front and rear ends of the car body (101). The first power roller conveyor belt (3), the second power roller conveyor belt (4) and the third power roller conveyor belt (5) are installed on the top surface of the car body (101) in sequence. The second power roller conveyor belt (4) is connected to the car body (101) through the lifting and rotating mechanism (6). The lifting and tilting mechanism (2) includes a support frame (201), which is vertically arranged with two inverted L-shaped grooved tracks (202) on opposite sides. Two drive sprockets (203) are mounted side by side at the bottom of the support frame (201), and two driven sprockets (204) are mounted side by side at the top. The corresponding drive sprockets (203) and driven sprockets (204) are each connected by a chain (205) to drive the two drive sprockets (203). A rotating lifting motor (206) is installed at the bottom of the support frame (201). The tilting shaft (207) is horizontally set and fixed in the middle on two chains (205). Each end is slidably installed in a grooved track (202) through a slider (208). Multiple rocker arms (209) are distributed on the tilting shaft (207). A guardrail support frame (210) is connected to the rocker arms (209). At least two horizontally set forks (211) are fixed on the guardrail support frame (210). The support frame (201) in the two sets of lifting and turning mechanisms (2) is fixed to the front and rear end faces of the vehicle body (101); In the lifting and turning mechanism (2), after the guardrail support frame (210) rises to the top of the groove track (202) and turns, the height of the guardrail support frame (210) is adapted to the height of the first power roller conveyor belt (3); The lifting and rotating mechanism (6) includes an electric push rod (601), a lifting base plate (602), and a turntable mechanism (603). A lifting window (103) is provided on the top of the vehicle body (101). The lifting base plate (602) is located at the lifting window (103) and its shape is adapted to the shape of the lifting window (103). Four vertical electric push rods (601) are provided between the lifting base plate (602) and the bottom surface of the vehicle body (101). The turntable mechanism (603) is installed on the lifting base plate (602). The second power roller conveyor belt (4) is fixed on the turntable mechanism (603).

2. The molded guardrail transfer and multi-directional placement device according to claim 1, characterized in that: There are four sets of the lifting and turning mechanism (2). The other two sets of lifting and turning mechanisms (2) are symmetrically installed on both sides of the vehicle body (101), and their positions are adapted to the position of the second power roller conveyor belt (4).

3. A molded guardrail transfer and multi-directional placement device according to claim 1 or 2, characterized in that: Each of the first power roller conveyor belt (3), the second power roller conveyor belt (4) and the third power roller conveyor belt (5) is equipped with a fence (7) on both sides.

4. A molded guardrail transfer and multi-directional placement device according to claim 1 or 2, characterized in that: Ball bearings are provided on the surfaces of the slider (208) that contact the grooved track (202).

5. A molded guardrail transfer and multi-directional placement device according to claim 1 or 2, characterized in that: The lifting and flipping mechanism (2) has multiple vacuum suction cups (212) densely distributed on the support surface of the fork plate (211).

6. The molding guardrail transfer and multi-directional placement device according to claim 5, characterized in that: A telescopic outrigger (8) is installed at each of the four corners of the bottom of the vehicle body (101). The telescopic outrigger (8) includes a horizontal telescopic arm (801) and a vertical telescopic leg (802). One end of the horizontal telescopic arm (801) is fixed to the bottom of the vehicle body (101), and the other end is fixed with the vertical telescopic leg (802).

7. The molded guardrail transfer and multi-directional placement device according to claim 3, characterized in that: The vehicle (1) is an automated guided vehicle, and the four wheels (102) are all AGV steering wheels.

8. The molded guardrail transfer and multi-directional placement device according to claim 6, characterized in that: It also includes a PLC controller. The lifting motor (206), the first powered roller conveyor belt (3), the second powered roller conveyor belt (4), the third powered roller conveyor belt (5), the electric push rod (601), the turntable mechanism (603), the vacuum suction cup (212), the horizontal telescopic arm (801) and the vertical telescopic leg (802) are all electrically or signal-connected to the PLC controller.

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