A feeding trolley

Abstract

The application discloses a feeding trolley and relates to the technical field of material transfer, which solves the problem of inconvenient docking between the trolley and a production line and influences product transfer. The trolley comprises a trolley body, a conveying assembly, a production line docking unit, a locking mechanism, a rear limiting mechanism and a front limiting mechanism. The front limiting mechanism comprises a swing rod and a top block. The swing rod is rotationally connected to one end of a carrying platform close to the production line docking unit. The top block is fixedly installed on one side of the production line docking unit close to the carrying platform. One end of the swing rod is provided with a contact rod. The top block can swing upward or downward when approaching or moving away from the contact rod. The application adopts a mechanical unlocking design, which can quickly remove the swing rod from the blocking and limiting position of the product, has a simple structure and low cost, and simultaneously controls the locking and unlocking of the locking piece and the locking pin through a mechanical rotary driving structure.

Description

Technical Field

[0001] This invention relates to the field of material handling technology, and in particular to a loading trolley. Background Technology

[0002] Products such as battery packs and molds can typically weigh hundreds of kilograms. To facilitate transportation, trolleys are used during the transfer process to move them to the corresponding production line.

[0003] Due to the product's significant weight, a blocking block is installed on the trolley to prevent it from slipping during transfer. Once the front of the trolley aligns with the front of the production line, a cylinder or motor typically controls the blocking block to deflect to one side, making way for the product and allowing it to be pushed from the trolley onto the production line. This method has the following drawbacks: firstly, controlling the blocking block's deflection with a cylinder or motor requires an electrical system, resulting in high costs; secondly, after aligning with the production line, the trolley is not locked to the line, making it prone to movement during transfer, affecting product transport, and increasing the risk of products slipping and injuring workers. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems by designing a loading trolley, which solves the problem of inconvenient docking between the trolley and the production line, affecting product transfer.

[0005] The technical solution of the present invention to achieve the above objectives is a feeding trolley, comprising:

[0006] Vehicle body;

[0007] A conveying assembly, wherein the middle part of the bottom of the conveying assembly is rotatably connected to the top of the vehicle body and is capable of rotating relative to the vehicle body in a vertical plane;

[0008] A production line docking unit is used to be installed at the front end of the production line and to be positioned and docked with the front end of the conveying component.

[0009] A locking mechanism, comprising a locking member and a locking pin, wherein the locking member is rotatably connected to the conveying assembly, and the locking pin is fixedly installed on the production line docking unit; the bottom of the locking member has a locking groove that mates with the locking pin, and the locking pin is located on the rotation path of the locking member;

[0010] A rear limiting mechanism is installed on the conveying assembly at one end away from the production line docking unit to prevent products from slipping off the rear end of the conveying assembly;

[0011] A front limiting mechanism is installed on the conveying assembly at one end near the production line docking unit to prevent products from slipping off the front end of the conveying assembly;

[0012] The aforementioned front limiting mechanism includes a swing arm and a top block. The swing arm is rotatably connected to one end of the conveying assembly near the production line docking unit. The top block is fixedly installed on the production line docking unit on the side near the conveying assembly. One end of the swing arm hangs down naturally, and the other end extends to the product conveying path. The locking part extends to the rotation path after the swing arm contacts the top block. The top block and the naturally hanging end of the swing arm are engaged with an inclined surface. As the top block approaches or moves away from the hanging end of the swing arm, the hanging end of the swing arm can swing up or down.

[0013] Furthermore, at least one hinge support is provided in the middle part of the top of the vehicle body, and a rotating shaft is rotatably connected to the hinge support. The conveying assembly includes a transport platform and several rollers. The middle part of the bottom of the transport platform is fixedly connected to the rotating shaft by a fixing block. A row of rollers for conveying products is provided on each side of the transport platform.

[0014] Furthermore, the locking mechanism includes a rotating shaft and a handle. The rotating shaft is rotatably connected to the transport platform and extends from the front end of the transport platform to the rear end of the transport platform. One end of the rotating shaft is connected to a locking element located at the front end of the transport platform, and the other end is connected to the handle.

[0015] Furthermore, a first fixed plate is provided at one end of the transport platform near the production line docking unit, the swing arm is rotatably connected to the side of the first fixed plate, the rotating shaft is rotatably connected to the first fixed plate, and the naturally drooping end of the swing arm has a contact rod.

[0016] Furthermore, the end of the swing arm away from the contact rod protrudes towards the product feeding direction to form a blocking part, and the upper edge of the first fixing plate has a clearance groove for avoiding the blocking part.

[0017] Furthermore, the production line docking unit includes a support base, a second fixing plate, and docking blocks. The second fixing plate is vertically fixed on the support base. The docking blocks are respectively disposed on both sides of the second fixing plate and perpendicular to the second fixing plate. The locking pin is fixed on the side of the second fixing plate near the locking member. The top block is fixedly installed on the second fixing plate and corresponds to the contact rod.

[0018] Furthermore, the locking pin has an anti-disengagement part at one end near the locking member to prevent the locking pin from disengaging from the locking groove.

[0019] Furthermore, pressure rollers are provided on both sides of the outer side of the conveying assembly. The pressure rollers are rotatably connected to the conveying assembly and are eccentrically arranged.

[0020] Furthermore, the locking member includes a main body, a limiting part, and a locking part. The limiting part and the locking part are parallel to each other and integrally connected to the same side of the main body. The main body is rotatably connected to the first fixing plate. A limiting groove for limiting and preventing the slippage of the limiting part is formed between the limiting part and the locking part. The bottom of the locking part has the locking groove. The limiting part extends to the rotation path of the swing rod after it contacts the top block.

[0021] Furthermore, at least one buffer is provided on the end of the conveying assembly near the production line docking unit.

[0022] Its advantages over existing technologies are:

[0023] In this invention, the production line docking unit is installed at the front end of the production line for positioning and docking with the vehicle body. The conveying assembly transports the product onto the production line. Due to the greater weight of the product's rear end, the conveying assembly tilts towards the rear end of the vehicle body after the product is placed on it. A rear limiting mechanism at the rear of the conveying assembly blocks and limits the rear end of the product, while a front limiting mechanism at the front of the conveying assembly blocks and limits the front end of the product. This prevents the product from moving back and forth during the vehicle's movement. In its natural state, one end of the swing arm is tilted upwards, blocking the front end of the product, while the other end hangs down. When the front end of the vehicle body docks with the production line docking unit, the top block on the production line docking unit will gradually approach the swing arm at the front end of the conveying component. The top block and the swing arm will cooperate at an angle, gradually lifting the drooping end of the product upwards, while the originally upturned end of the swing arm will gradually rotate downwards, thus contacting the obstruction of the product on the conveying component. At the same time, the locking part is pressed downwards, causing the locking part to rotate synchronously. During the rotation of the locking part, the locking groove will engage with the locking pin on the product docking unit, thereby locking the vehicle body and the production line together, ensuring that the vehicle body will not move arbitrarily during the transfer of the product, and that the product can be safely and smoothly transferred to the production line.

[0024] Reverse rotation of the locking mechanism can release the lock between the vehicle body and the production line. As the vehicle body gradually moves away from the production line docking unit, the swing arm will return to its original position, which can block the front end of the product when it is transported again.

[0025] This invention eliminates the need for complex electrical control mechanisms to control the swing arm's oscillation. By utilizing the offset of the swing arm's center of gravity from the rotation center, the swing arm can block the product on the trolley. The top block and the inclined surface of the swing arm work together to control the swing arm's deflection. A mechanical unlocking design is used to quickly release the swing arm's obstruction of the product. The structure is simple and the cost is low. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the loading trolley in this invention;

[0027] Figure 2 This is a structural diagram of the loading trolley body;

[0028] Figure 3 This is a schematic diagram of the conveying components in the loading trolley;

[0029] Figure 4 This is a structural diagram of the production line docking unit;

[0030] Figure 5 This is a schematic diagram of the installation structure of each component on the first and second fixing plates;

[0031] Figure 6 This is a schematic diagram of the installation structure of each component on the first fixed plate;

[0032] Figure 7 This is a schematic diagram of the installation structure of each component on the second fixing plate;

[0033] Figure 8 This is a schematic diagram of the first pendulum rod;

[0034] Figure 9 This is a schematic diagram of the connection structure between the rotating shaft and the locking element;

[0035] Figure 10 This is a schematic diagram showing the fit between the locking element and the locking pin.

[0036] In the diagram, 1. Vehicle body; 2. Conveying assembly; 21. Transport platform; 22. Roller; 3. Production line docking unit; 31. Support base; 32. Second fixing plate; 33. Docking block; 331. Guide slope; 4. Locking mechanism; 41. Locking component; 411. Main body; 412. Limiting part; 413. Locking part; 4101. Limiting groove; 4102. Locking groove; 42. Locking pin; 421. Disc; 5. Rear limiting mechanism; 51. Stand; 52. Blocking block; 6. Front limiting mechanism 61. First swing arm; 611. Blocking part; 62. Top block; 63. Second swing arm; 64. Contact rod; 7. Handle; 8. Caster wheel; 9. First fixing plate; 10. Guard plate; 11. Pad block; 12. Buffer; 13. Pressure roller; 14. Rotating shaft; 15. Stop bar; 16. Positioning pin; 17. Sensor; 18. Bearing seat; 19. Limiting fastener; 191. Limiting hole; 20. Grip; 21. Limiting pin; 22. Spring pin; 23. Hinge support; 24. Fixing block. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] Figures 1-2 As shown, a preferred embodiment of the present invention provides a loading trolley, which mainly includes modules such as a trolley body 1, a conveying assembly 2, a production line docking unit 3, a locking mechanism 4, a front limiting mechanism 6, and a rear limiting mechanism 5. The trolley body 1 adopts a frame structure. Four casters 8 are installed at the bottom of the trolley body 1, and a handle 7 is welded to the rear end of the trolley body 1 for pushing the trolley. The conveying assembly 2 is installed on the top of the trolley body 1 for conveying products.

[0039] Specifically, refer to Figure 2 , Figure 3 The conveying assembly 2 mainly consists of a transport platform 21 and several rollers 22. Two hinge supports 23 are located in the middle of the top of the vehicle body 1, near the left and right sides of the vehicle body 1. Each hinge support 23 has a rotating shaft (not shown in the figure) mounted on it. Correspondingly, two mounting holes are formed on the transport platform 21, through which the two hinge supports 23 pass. The two ends of the rotating shaft are fixedly connected to a fixing block 24, which is then fixed to the transport platform 21 with screws. Therefore, the transport platform 21 can rotate back and forth relative to the vehicle body 1 via the rotating shaft. The rollers 22 are arranged in two rows, installed on both sides of the inner side of the transport platform 21 and rotatably connected to it. The rollers 22 are placed vertically to facilitate product transport.

[0040] The front limiting mechanism 6 is installed at the front end of the transport platform 21, and the rear limiting mechanism 5 is installed at the rear end of the transport platform 21. They are used to limit the front and rear ends of the product respectively to prevent the product from slipping off the trolley.

[0041] A first fixed plate 9 is vertically fixed at the rear end of the transport platform 21 (i.e. the end away from the handle 7). The front limiting mechanism 6 is mainly composed of a first swing rod 61 and a top block 62. The first swing rod 61 is rotatably connected to the side of the first fixed plate 9 via a rotating shaft, near the end of the first fixed plate 9.

[0042] like Figure 1 As shown, production line docking unit 3 is installed at the front end of the production line for docking with the trolley.

[0043] refer to Figure 4The production line docking unit 3 mainly consists of a support base 31, a second fixing plate 32, and docking blocks 33. The second fixing plate 32 is vertically fixed on the support base 31 and parallel to the first fixing plate 9. A front limiting mechanism 6, consisting of a second swing rod 63 and a top block 62, is also installed on the second fixing plate 32. Similarly, the second swing rod 63 is rotatably connected to the side of the second fixing plate 32 via a rotating shaft, near the end of the second fixing plate 32. The positions of the two top blocks 62 correspond to the first swing rod 61 and the second swing rod 63, respectively. The first swing rod 61 and the second swing rod 63 are symmetrically arranged, as are the two top blocks 62.

[0044] The structure of the first pendulum 61 is the same as that of the second pendulum 63. (See reference) Figure 5 , Figure 8 One end of the swing arm has a protruding blocking part 611, and the other end is fixedly equipped with a contact rod 64, which is perpendicular to the swing arm, making the overall shape of the swing arm "L". The pivot is rotatably connected to the end of the swing arm near the blocking part 611, so that the center of gravity of the swing arm is close to the end with the contact rod 64. Therefore, in its natural state, because the end of the swing arm with the contact rod 64 is heavier, the end of the swing arm with the contact rod 64 swings downward, and the end with the blocking part 611 swings upward, so that the swing arm can play a blocking role for the product.

[0045] In this embodiment, the first fixing plate 9 can be fixedly installed on the trolley, so the first swing arm 61 will block the products on the trolley and prevent the products from sliding off the trolley. The second fixing plate 32 can be installed at the front end of the production line, so the second swing arm 63 will block the products on the production line and prevent the products from sliding off the production line.

[0046] The blocking part 611 at the upper end of the swing arm acts as a positioning barrier for the product. A clearance groove (not shown in the figure) is provided at a corresponding position on the upper edge of the first fixed plate 9 and the second fixed plate 32 to allow the blocking part 611 to pass. When the upper end of the first swing arm 61 (i.e., the end with the blocking part 611) swings downwards, the blocking part 611 can be accommodated in the clearance groove, releasing the obstruction of the product on the trolley. Similarly, the blocking part 611 on the second swing arm 63 can also be accommodated in the clearance groove on the upper edge of the second fixed plate 32, so that the product on the trolley can be transferred to the production line.

[0047] The clearance groove can also serve as a limit to prevent the end of the swing arm with the blocking part 611 from swinging downwards excessively.

[0048] refer to Figure 5Each top block 62 has a ramp at its front end, and the height of the top block 62 is appropriately higher than the height of the contact rod 64. When the first fixing plate 9 approaches the second fixing plate 32, the front end of the contact rod 64 will gradually contact the ramp on the top block 62 and slide relative to it along the ramp. During this process, the contact rod 64 will gradually rise, causing the end of the swing rod with the contact rod 64 to gradually rise, while the end of the contact rod 64 with the blocking part 611 will gradually fall downward, thereby releasing the blocking limit.

[0049] In this embodiment, in order to facilitate better contact between the contact rod 64 and the top block 62, the front end of the contact rod 64 also has an inclined surface that matches the inclined surface on the top block 62, thereby reducing resistance.

[0050] In other technical solutions, a bevel may be provided only at the front end of the contact rod 64, without a bevel on the top block 62. Alternatively, a bevel may be provided on the top block 62, but not on the contact rod 64.

[0051] like Figure 6 , Figure 7 To limit the rotation angle of the first pendulum rod 61 and the second pendulum rod 63, two locating pins 16 are provided on the first fixed plate 9 and the second fixed plate 32, located below the first pendulum rod 61 and the second pendulum rod 63. These two locating pins 16 are located on the clockwise and counterclockwise rotation paths of the pendulum rods, respectively, to limit the rotation angle of the pendulum rods and prevent the pendulum rods from rotating several times due to excessive impact from the top block 62 on the contact rod 64. Due to the presence of the locating pins 16, the deflection of the pendulum rods generally does not exceed 90°.

[0052] like Figure 1 As shown, the locking mechanism mainly consists of a locking element 41 and a locking pin 42. The locking element 41 is rotatably connected to the middle area of ​​the side of the first fixed plate 9 via a rotating shaft, and the locking pin 42 is fixedly installed in the middle area of ​​the side of the second fixed plate 32. In other technical solutions, the installation positions of the locking element 41 and the locking pin 42 can also be interchanged.

[0053] like Figure 10 As shown, the locking member 41 mainly consists of a main body 411, a limiting part 412, and a locking part 413. The limiting part 412 and the locking part 413 are parallel and integrally connected to one side of the main body, so that the locking member 41 has an "n" shape. A limiting groove 4101 is formed between the limiting part 412 and the locking part 413, and a locking groove 4102 is provided on the lower edge of the locking part 413.

[0054] The locking pin 42 is cylindrical. When the locking member 41 is rotated, the locking groove 4102 on the locking member 41 will engage with the locking pin 42, thus completing the left and right locking of the trolley and the production line. To prevent the trolley from moving back and forth, there is a disc 421 at the front end of the locking pin 42. The diameter of the disc 421 is larger than the diameter of the locking pin 42. Therefore, when the locking member 41 rotates, the disc 421 will be embedded in the limiting groove 4101, and the locking pin 42 will engage with the locking groove 4102. The disc 421 can prevent the locking pin 42 from disengaging from the locking groove 4102, thus completing the front and rear locking of the trolley and the production line, and the trolley will not move left and right or back and forth.

[0055] The length of the limiting part 412 on the locking member 41 is slightly longer than the length of the locking part 413, and extends below the first rocker arm 61, located on the rotation path of the end of the first rocker arm 61 with the blocking part 611. Simultaneously with releasing the blocking limit of the first rocker arm 61, the front end of the limiting part 412 of the locking member 41 extends onto the rotation path of the first rocker arm 61. During rotation, the first rocker arm 61 presses the locking member 41 downwards, causing the locking member 41 to rotate synchronously in the opposite direction to the rotation of the first rocker arm 61. During rotation, the locking groove 4102 engages with the locking pin 42 on the second fixed plate 32 to lock the trolley and the production line.

[0056] The width of the aforementioned lock groove 4102 is slightly larger than the thickness of the disc 421 at the front end of the locking pin 42, so that the trolley has a margin for forward and backward movement. When unlocking, the trolley moves back slightly, at which point the end of the first rocker arm 61 with the blocking part 611 gradually swings upward, thus rotating the locking member 4 and disengaging it from the locking pin 42, completing the unlocking process.

[0057] In this embodiment, the locking member 41 is located to the lower right of the first rocker arm 61. Preferably, when the first rocker arm 61 rotates clockwise, the end of the first rocker arm 61 with the blocking part 611 can press down the limiting part 412 of the locking member 41, causing the locking member 41 to rotate counterclockwise, thereby locking with the locking pin 42. In other technical solutions, the locking member 41 can also be located to the upper left of the first rocker arm 61. When the first rocker arm 61 rotates clockwise, the end of the first rocker arm with the contact rod 64 swings upward, thereby pushing the locking member 41 upward, causing the locking member 41 to rotate counterclockwise, thereby locking with the locking pin 42.

[0058] like Figure 1 , Figure 9As shown, in order to control the rotation of the locking member 41, a rotating shaft 14 is also provided on the transport platform 21. The rotating shaft 14 extends from the front end of the transport platform 21 to the rear end. A bearing seat 18 is provided at the rear end of the transport platform 21, and the two ends of the rotating shaft 14 are rotatably connected to the bearing seat 18 and the first fixed plate 9 through bearings. The locking member 41 is fixedly connected to the end of the rotating shaft 14. When the rotating shaft 14 rotates, it can drive the locking member 41 to rotate, thereby controlling the locking member 41 to lock and unlock with the locking pin 42.

[0059] A limiting fastener 19 is installed at the other end of the rotating shaft 14 (i.e. the end away from the locking member 41). A handle 20 is provided on the limiting fastener 19. By holding the handle 20, the limiting fastener 19 is controlled to rotate together with the rotating shaft 14, thereby driving the locking member 41 to rotate.

[0060] A limiting hole 191 is provided on the limiting fixing member 19. The limiting hole 191 is an arc-shaped hole, and the curvature is consistent with the rotation direction of the limiting fixing member 19. At the same time, a limiting pin 21 is installed on the bearing seat 18, and the front end of the limiting pin 21 protrudes from the limiting hole 191 to limit the rotation angle of the limiting fixing member 19. A spring pin 22 is also provided on the limiting fixing member 19. Correspondingly, a pin hole is provided on the bearing seat 18 to cooperate with the spring pin 22. When the rotating shaft 14 is rotated, the locking member 41 and the locking pin 42 are engaged. At this time, the spring pin 22 is inserted into the pin hole, so that the limiting fixing member 19 cannot rotate, and the locking member 41 and the locking pin 42 will remain in a locked state. By pulling the spring pin 22 out of the pin hole, the limiting fixing member 19 can be rotated to release the locked state.

[0061] A sensor 17 is also provided on the second fixing plate 32 on one side of the locking pin 42 to detect whether the locking member 41 is locked in place with the locking pin 42.

[0062] like Figure 4 As shown, when the trolley docks with the production line docking unit 3 at the front end of the production line, the docking blocks 33 on both sides of the second fixing plate 32 will limit the left and right movement of the trolley to prevent it from moving left and right, so as to ensure precise docking. The distance between the two docking blocks 33 is slightly larger than the width of the transport platform 21, so that the two docking blocks 33 can limit the left and right sides of the trolley.

[0063] Each docking block 33 has a guide ramp 331 on its front side. Simultaneously, four pressure rollers 13 are arranged on each of the left and right sides of the transport platform 21, with two pressure rollers 13 forming a group. One group of pressure rollers 13 is placed horizontally, and the other group is placed vertically. The pressure rollers 13 roll relative to the sides of the docking block 33 and the guide ramp 331, serving a guiding function. The upper surface of the docking block 33 is flat, and there is a certain gap between this flat surface and the vertical height of the pressure rollers 13, allowing the transport platform 21 to deflect and move at a rearward angle.

[0064] like Figure 3 As shown, there are two rear limiting mechanisms 5, located at the rear end of the transport platform 21 near both sides. These rear limiting mechanisms 5 are fixed and mainly consist of a support 51 and a blocking block 52. The support 51 is fixedly mounted on the transport platform 21 with screws, while the blocking block 52 is mounted on the support 51 near the product. The blocking block 52 is used to block the product and prevent it from sliding out of the rear end of the trolley.

[0065] Because the rear end of the product is heavier, its center of gravity will shift towards the rear end of the transport platform 21 after it is placed on the conveyor assembly 2. At this point, the transport platform 21 carrying the product will tilt towards its rear end (the end closest to the trolley handle 7), causing the rear end of the platform 21 to be lower and the front end higher. The product will slide towards the rear end of the platform 21, but the blocking block 52 will stop it, preventing the product from sliding off the trolley. Pushing the trolley at this point will cause the product to tilt towards the end with the trolley handle 7, but it will not move.

[0066] The upper end of the first swing arm 61 (i.e., the end furthest from the contact arm 64) will point vertically upwards, blocking the front end of the product. Similarly, the second swing arm 63 on the product docking unit will assemble the products on the production line.

[0067] When the front end of the trolley aligns with the production line docking unit 3 at the front of the production line, the contact rod 64 on the first swing arm 61 will contact the inclined surface of the top block 62 on the second fixed plate 32, and simultaneously the second swing arm 63 will contact the inclined surface of the top block 62 on the first fixed plate 9. As the trolley gets closer to the production line, the top block 62 will lift the contact rod 64 upwards, and at the same time, one end of the first swing arm 61 and the second swing arm 63 with the contact rod 64 will deflect upwards, and the other end will deflect downwards. When the trolley is in place, the first swing arm 61 and the second swing arm 63 will deflect simultaneously into place, releasing the obstruction limit on the product. Then, rotating the rotating shaft 14 will engage the locking component 41 and the locking pin 42, locking the trolley and the production line together.

[0068] When the product is manually pushed, it moves along the rollers 22 on the transport platform 21 towards the rear end (i.e., the end closer to the production line). As a result, the product's center of gravity gradually moves closer to the rear end of the transport platform 21, causing the platform to gradually tilt towards the rear. At this point, the front end of the transport platform 21 is lower than the rear end, allowing the product to slide onto the production line along the inclined surface. The pressure rollers 13 on both sides of the transport platform 21 contact the docking blocks 33. The cooperation between the pressure rollers 13 and the docking blocks 33 limits the tilting angle of the transport platform 21.

[0069] Once the product is transferred to the production line, the locking parts 41 and 42 are released, the trolley is pulled backward, and the first swing arm 61 and the second swing arm 63 will gradually return to their original positions (i.e., the blocking state). The second swing arm 63 on the product docking unit will block the product on the production line.

[0070] like Figure 3 As shown, in order to prevent the trolley from hitting the production line, two buffers 12 are also installed on the transport platform 21. These two buffers 12 are located near the two ends of the first fixed plate 9. When the trolley docks with the production line docking unit 3, the second fixed plate 32 will hit the buffers 12, and the buffers 12 will play a buffering role to reduce the impact of the trolley on the production line.

[0071] like Figure 2 As shown, two pads 11 are installed at each end of the top of the vehicle body 1, below the transport platform 21, to support and weigh the transport platform 21 during its forward and backward rotation. The height of the pads 11 is lower than the height of the bottom surface of the transport platform 21.

[0072] Protective plates 10 are installed on both sides and the rear of the transport platform 21 to protect the internal structure. Barrier strips 15 are provided on both sides of the top of the transport platform 21 to block and limit the movement of the product on the left and right sides.

[0073] The above technical solutions only embody the preferred technical solutions of the present invention. Any modifications that may be made by those skilled in the art to certain parts thereof embody the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A feeding trolley, characterized in that, include: Vehicle body (1); The conveying assembly (2) has its bottom middle part rotatably connected to the top of the vehicle body (1) and is able to rotate relative to the vehicle body (1) in a vertical plane. The production line docking unit (3) is used to be installed at the front end of the production line and to be positioned and docked with the front end of the conveying assembly (2); The locking mechanism (4) includes a locking member (41) and a locking pin (42). The locking member is rotatably connected to the conveying assembly (2), and the locking pin (42) is fixedly installed on the production line docking unit (3). The bottom of the locking member (41) has a locking groove (4102) that cooperates with the locking pin (42). The locking pin (42) is located on the rotation path of the locking member (41). The rear limiting mechanism (5) is installed on the conveying assembly (2) at one end away from the production line docking unit (3) to prevent the product from slipping off the rear end of the conveying assembly (2); A front limiting mechanism (6) is installed on one end of the conveying assembly (2) near the production line docking unit (3) to prevent the product from slipping off the front end of the conveying assembly (2); The front limiting mechanism (6) includes a swing arm and a top block (62). The swing arm is rotatably connected to one end of the conveying assembly (2) near the production line docking unit (3). The top block (62) is fixedly installed on the production line docking unit (3) near the side of the conveying assembly (2). One end of the swing arm hangs down naturally, and the other end extends to the conveying path of the product. The locking member (41) extends to the rotation path after the swing arm contacts the top block (62). The top block (62) and the hanging end of the swing arm are fitted with an inclined surface. As the top block (62) moves closer to or away from the hanging end of the swing arm, the hanging end of the swing arm can swing up or down.

2. The feeding trolley according to claim 1, characterized in that, At least one hinge support (23) is provided in the middle part of the top of the vehicle body (1). A rotating shaft is rotatably connected to the hinge support (23). The conveying assembly (2) includes a transport platform (21) and several rollers (22). The middle part of the bottom of the transport platform (21) is fixedly connected to the rotating shaft by a fixing block (24). A row of rollers (22) for conveying products is provided on each side of the transport platform (21).

3. The feeding trolley according to claim 2, characterized in that, The locking mechanism (4) further includes a rotating shaft (14) and a handle (7). The rotating shaft (14) is rotatably connected to the transport platform (21) and extends from the front end of the transport platform (21) to the rear end of the transport platform (21). One end of the rotating shaft (14) is connected to a locking member (41) located at the front end of the transport platform (21), and the other end is connected to the handle (7).

4. The feeding trolley according to claim 3, characterized in that, A first fixing plate (9) is provided on one end of the transport platform (21) near the production line docking unit (3). The swing arm is rotatably connected to the side of the first fixing plate (9). The rotating shaft (14) is rotatably connected to the first fixing plate (9). The swing arm has a contact rod (64) at the end that hangs down naturally.

5. The feeding trolley according to claim 4, characterized in that, The end of the swing arm away from the contact rod (64) protrudes towards the product feeding direction to form a blocking part (611), and the upper edge of the first fixing plate (9) has a clearance groove for avoiding the blocking part (611).

6. The feeding trolley according to claim 2, characterized in that, The production line docking unit (3) includes a support base (31), a second fixing plate (32), and docking blocks (33). The second fixing plate (32) is vertically fixed on the support base (31). The docking blocks (33) are respectively arranged on both sides of the second fixing plate (32) and are perpendicular to the second fixing plate (32). The locking pin (42) is fixed on the side of the second fixing plate (32) near the locking member (41). The top block (62) is fixedly installed on the second fixing plate (32) and corresponds to the contact rod (64).

7. The feeding trolley according to claim 6, characterized in that, The locking pin (42) has an anti-disengagement part at one end near the locking member (41) to prevent the locking pin (42) from disengaging from the locking groove (4102).

8. The feeding trolley according to claim 1, characterized in that, Pressure rollers (13) are provided on both sides of the outer side of the conveying assembly (2). The pressure rollers (13) are rotatably connected to the conveying assembly (2) and are eccentrically arranged.

9. The feeding trolley according to claim 4, characterized in that, The locking member (41) includes a main body (411), a limiting part (412), and a locking part (413). The limiting part (412) and the locking part (413) are parallel to each other and integrally connected to the same side of the main body (411). The main body (411) is rotatably connected to the first fixing plate (9). The locking pin (42) has an anti-disengagement part at one end near the locking member (41) to prevent the locking pin (42) from disengaging from the locking groove (4102). A limiting groove (4101) for limiting the anti-disengagement part is formed between the limiting part (412) and the locking part (413). The bottom of the locking part (413) has the locking groove (4102). The limiting part (412) extends to the rotation path after the swing rod touches the top block (62).

10. The feeding trolley according to claim 1, characterized in that, At least one buffer is provided on one end of the conveying assembly (2) near the production line docking unit (3).

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