A trolley for removing scrapped car engines

Abstract

This invention discloses a trolley for removing scrapped car engines, relating to the technical field of trolleys. It includes a flatbed assembly for disassembling scrapped car engines, comprising two first flatbeds and two second flatbeds. The two second flatbeds are located between the two first flatbeds. The first and second flatbeds in contact with each other, as well as the two second flatbeds themselves, are connected by hinges. Each of the two first flatbeds has a lifting assembly at its bottom for moving the first and second flatbeds up and down. Both sets of lifting assemblies have a base plate at their bottom, and each base plate has casters fixed at both ends of its bottom. This invention utilizes the unfolding and folding of the two second flatbeds and the lifting assemblies to adjust the height of the first and second flatbeds, enabling the engine to be removed from the scrapped car from both the top and bottom. This invention provides two different usage methods to suit different engine disassembly scenarios, solving the problem of limited application range.

Description

Technical Field

[0001] This invention relates to the field of dismantling trolley technology, specifically a dismantling trolley for scrapped automobile engines. Background Technology

[0002] In recent years, with social development and the improvement of people's living standards, the number of scrapped cars has been increasing. Since the core component of a car is the engine, many high-quality brand-name cars possess a perfect engine, using scarce and expensive materials. Therefore, when car engines are buried deep underground, many of these scarce materials, due to their high quality, cannot be decomposed, thus polluting the environment and damaging surface vegetation. Disposing of scrapped cars through deep burial not only wastes resources but also pollutes the environment.

[0003] To better manage end-of-life vehicles and conserve resources, people have gradually begun to dismantle and recycle the engines of these vehicles. Sometimes, the engines only have worn-out parts or damaged components, requiring only a replacement to continue operation. Therefore, recycling end-of-life vehicle engines and replacing parts not only avoids resource waste but also protects the environment.

[0004] Before reusing an engine from a scrapped vehicle, it must first be removed. The steps for disassembling the engine are as follows: First, disconnect the connecting pipes and wiring harness plugs around the engine; second, separate the connecting bolts between the engine and the transmission; third, detach the engine mounting brackets. Then, the detached engine can be removed from the vehicle from the bottom or top. This process requires workers to manually disconnect the engine from the vehicle and then use movable equipment, such as those described in prior art publications CN208182533U and CN204295256U, to remove the engine from the bottom or top of the vehicle. While both of these devices can remove the engine from the scrapped vehicle, their usage is relatively limited, only suitable for disassembling the engine from the bottom or top, thus restricting their application in different work scenarios. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a trolley for removing scrapped car engines. By utilizing the unfolding and folding of two second flat plates and adjusting the height of the first and second flat plates using a lifting assembly, this invention enables the engine to be removed from the interior of a scrapped car from both the top and bottom. This invention provides two different usage methods, making it applicable to various engine disassembly scenarios and solving the problem of limited application scope.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a scrapped car engine dismantling trolley, comprising a flat plate assembly for dismantling scrapped car engines, the flat plate assembly being composed of two first flat plates and two second flat plates, the two second flat plates being located between the two first flat plates, and the first and second flat plates in contact with each other, as well as the two second flat plates being connected by hinges. The bottom of each of the two first plates is provided with a lifting component for driving the first plate and the second plate to move up and down. The number of the lifting components is set to two sets. The bottom of each set of lifting components is provided with a base plate, and each base plate is fixed with a moving wheel at both ends of the bottom. A folding assembly is provided between the two sets of lifting components to unfold or fold the two second flat plates; The bottom of the two second flat plates is equipped with lifting components for lifting the car engine; The lifting assembly raises the first and second plates, positioning the unfolded second plate directly above the scrapped car engine. This is used to remove the disassembled engine from the top of the scrapped car using a lifting assembly. The lifting assembly lowers the first plate, positioning the folded second plate directly below the scrapped car engine. This is used to receive the disassembled car engine from the bottom of the scrapped car.

[0007] Preferably, each of the lifting components includes two lifting rods installed at the bottom of the two first plates on opposite sides. A piston is fixed at the bottom of the lifting rod, and a fixed rod is provided at the outer end of the piston. The bottom of the lifting rod is inserted into the fixed rod. A cavity is machined inside the fixed rod. By injecting or venting gas into the cavity, the piston can be pushed to move up and down inside the fixed rod. The piston moving up and down drives the lifting rod to move up or down. The bottom end of the fixing rod is fixedly connected to the top of the base plate.

[0008] Preferably, a hollow rod is fixed between the two fixed rods of each lifting assembly. The hollow rod connects the cavity inside the two fixed rods. An air inlet pipe is fixedly connected to the bottom of the hollow rod. An air pump is connected to the end of the air inlet pipe away from the hollow rod. The air pump inflates the two fixed rods with air through the air inlet pipe and the hollow rod. Each hollow rod is provided with an exhaust pipe on one side. One end of the exhaust pipe extends into the interior of the hollow rod and is connected to the interior of the hollow rod. An electromagnetic valve is fixed to the outer end of the exhaust pipe. The opening and closing of the electromagnetic valve is used to control whether the gas in the hollow rod can be discharged through the exhaust pipe.

[0009] Preferably, a reinforcing frame plate is fixed to the side of each of the two first plates that is far apart from the first plates. The reinforcing frame plate is fixed together with the first plate, and a handle is fixed to the side of each of the two reinforcing frame plates that is far apart from the first plate.

[0010] Preferably, the folding assembly includes two electric push rods, which are respectively mounted on the front and rear sides of one of the first plates via mounting brackets. The fixed end of the electric push rod is fixedly connected to the side wall of one of the reinforcing frame plates, and the moving end of the electric push rod is fixedly connected to the side wall of the other reinforcing frame plate. The extension and retraction of the moving end of the electric push rod can push the other reinforcing frame plate and the first plate connected to it to move together.

[0011] Preferably, the folding assembly further includes two first round rods and four second round rods. The two first round rods are respectively inserted into the interior of a first plate that moves synchronously with the moving end of the electric push rod. The four second round rods are respectively inserted into the interior of two second plates. Each first plate and each second plate has two rod slots. The rod slots inside the first plate and the rod slots inside the second plate are connected to each other to accommodate the first round rods and the second round rods. The length of the internal groove of the first plate connected to the fixed end of the electric push rod is half the length of the internal groove of the other first plate; Two first round rods are each fixed with a connecting block at the bottom of the end furthest from the second round rod. The two connecting blocks are fixed with the same moving plate at the end furthest from the first round rod. A lead screw nut is embedded in the middle of the bottom of the moving plate. A reciprocating lead screw is threaded inside the lead screw nut. A first bevel gear is fixed to one end of the reciprocating lead screw. A second bevel gear meshes with one side of the first bevel gear. A motor is provided at the bottom of the second bevel gear to drive the second bevel gear to rotate. By using the motor to drive the first round rod to move inside the rod groove, the first round rod can push the second round rod to move inside the rod groove until the first round rod and the second round rod are respectively inserted between the first plate and the second plate or at the connection between the two second plates.

[0012] Preferably, two short plates are fixed to the outer ends of the two second round rods. A spring is fixedly connected to one side of each short plate. The end of the spring away from the short plate is fixedly connected to the inner wall of the second plate. When the first round rod pushes the second round rod to move inside the rod groove, it will stretch the spring through the short plate. The stretched spring can automatically pull the second round rod to reset when the first round rod resets.

[0013] Preferably, both ends of the reciprocating lead screw are movably connected to mounting plates via bearings, and the top of the mounting plate is fixedly connected to the bottom of the first flat plate to fix the position of the reciprocating lead screw; The motor is fixed to the bottom of the first plate by a bracket; The bottom of the first plate has two moving slots for the connecting block to move, and the reciprocating lead screw is located between the two moving slots.

[0014] Preferably, the lifting assembly includes two mounting boxes respectively installed at the bottom of two second flat plates. When the second flat plates are unfolded, the side walls of the two mounting boxes are in contact. A rotating rod is movably connected inside each mounting box via a bearing. A first winding wheel is fixed to the outer end of each rotating rod. An L-shaped support rod is fixed to the bottom of one mounting box. A second winding wheel is rotatably connected to the bottom end of the L-shaped support rod. A lifting rope is wound around the outer end of the first winding wheel located inside the other mounting box. One end of the lifting rope passes around the two first winding wheels and the second winding wheel in sequence and extends to the bottom of the second winding wheel. A hook is fixed to the end of the lifting rope extending to the bottom of the second winding wheel for lifting the disassembled car engine. One end of one of the rotating rods is fixedly connected to a forward and reverse motor that drives the rotating rod to rotate. The forward and reverse motors drive the rotating rod and the first winding wheel at its outer end to rotate, which is used to wind or unwind the lifting rope wound around the outer end of the first winding wheel.

[0015] Preferably, the operation of the air pump, the electric push rod, the motor, the forward and reverse motors, and the opening and closing of the solenoid valve are all remotely controlled by an external remote control device.

[0016] Compared with the prior art, the present invention provides a trolley for dismantling and removing scrapped car engines, which has the following beneficial effects: By setting two foldable or unfoldable second plates between two first plates, and using a lifting assembly to adjust the height of the first and second plates, the engine can be supported from the bottom after the second plates are folded and the first plates are moved to their lowest position. After unfolding the second plates, the lifting assembly is used to move the second and first plates to the top of the scrapped car, allowing the engine to be removed from the top of the scrapped car using a lifting assembly installed at the bottom of the second plates. These two different ways of removing the engine are applicable to different engine dismantling scenarios, solving the problem of limited use of traditional tools.

[0017] By inserting the first round rod and the second round rod into the first plate and the second plate respectively, after the two second plates are unfolded, the first round rod and the second round rod are driven by the motor to move inside the rod groove, and the first round rod and the second round rod are inserted between the first plate and the second plate and between the two second plates, so as to strengthen the strength of the connection between the first plate and the second plate and between the two second plates, and ensure that the connection can support the tension applied after the motor is lifted.

[0018] By using an air pump to inflate the hollow rod, the gas passes through the hollow rod and enters the fixed rod. The gas inside the fixed rod pushes the lifting rod, causing the first and second plates to move upward. By opening the solenoid valve at the outer end of the exhaust pipe, the first and second plates can press the lifting rod downward under their own weight. The gas originally located inside the fixed rod is discharged through the exhaust pipe, thereby adjusting the height of the first and second plates to make them suitable for different engine disassembly scenarios. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the two second plates of the present invention after being unfolded; Figure 2 For the present invention Figure 1 A bottom view; Figure 3 For the present invention Figure 2 Rear view; Figure 4 This is a cross-sectional view of the first and second flat plates of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of A in the middle; Figure 6 This is a schematic diagram of the reciprocating lead screw and the two first round rods of the present invention; Figure 7 This is a schematic diagram of the structure of the first winding wheel, the second winding wheel, and the connecting rope of the present invention; Figure 8 This is a cross-sectional view of the fixed rod and the hollow rod of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of B in the middle; Figure 10 This is a schematic diagram of the two second flat plates of the present invention after folding; Figure 11 For the present invention Figure 10 Top view; Figure 12 For the present invention Figure 10 Rear view; In the picture: 1. Flat panel assembly; 11. First flat panel; 12. Second flat panel; 13. Reinforcing frame plate; 14. Handle; 2 Lifting assembly, 21 Lifting rod, 22 Fixed rod, 23 Piston, 24 Hollow rod, 25 Air pump, 26 Inlet pipe, 27 Outlet pipe, 28 Solenoid valve; 3 base plates, 4 casters; 5 Folding assembly, 51 Electric push rod, 52 Mounting bracket, 53 Rod slot, 54 First round rod, 55 Second round rod, 56 Connecting block, 57 Moving plate, 58 Reciprocating screw, 59 Mounting plate, 510 First bevel gear, 511 Second bevel gear, 512 Motor, 513 Short plate, 514 Spring, 515 Moving slot; 6. Lifting assembly, 61. Mounting box, 62. Rotating rod, 63. First winding reel, 64. L-shaped support rod, 65. Second winding reel, 66. Lifting rope, 67. Lifting hook, 68. Forward and reverse motor. Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-4 As shown, the present invention provides a scrapped car engine dismantling trolley, including a flat plate assembly 1 for dismantling scrapped car engines. The flat plate assembly 1 consists of two first flat plates 11 and two second flat plates 12. The two second flat plates 12 are located between the two first flat plates 11. The first flat plates 11 and the second flat plates 12 that are in contact with each other, as well as the two second flat plates 12, are movably connected by hinges. By means of movable connection by hinges, the two second flat plates 12 can be folded downwards to meet the needs of folding or unfolding. A reinforcing frame plate 13 is fixed on the side of each of the two first plates 11 that is far apart from each other. The reinforcing frame plate 13 is fixed together with the first plate 11. A handle 14 is fixed on the side of each of the two reinforcing frame plates 13 that is far away from the first plate 11. The handle 14 makes it convenient for workers to push the invention to move it to a designated position.

[0022] Because the first plate 11 and the second plate 12 need to be placed on top of or on the roof of a scrapped vehicle, the height of the first plate 11 and the second plate 12 needs to be adjustable, such as... Figure 1 As shown, the bottom of each of the two first flat plates 11 is provided with a lifting component 2 for driving the first flat plate 11 and the second flat plate 12 to move up and down. The number of lifting components 2 is set to two sets. The bottom of each set of lifting components 2 is provided with a base plate 3. Each base plate 3 has a moving wheel 4 fixed at both ends of its bottom. Specifically, such as Figure 2-4As shown in Figures 8 and 9, each lifting assembly 2 includes two lifting rods 21 installed on the bottom of the two first flat plates 11 on the side furthest from each other. A piston 23 is fixed to the bottom end of the lifting rod 21, and a fixing rod 22 is provided at the outer end of the piston 23. The bottom end of the fixing rod 22 is fixedly connected to the top of the base plate 3. The bottom end of the lifting rod 21 is inserted into the inside of the fixing rod 22. A cavity is machined inside the fixing rod 22. A hollow rod 24 is fixed between the two fixing rods 22 of each lifting assembly 2. An air inlet pipe 26 is fixedly connected to the bottom of the hollow rod 24. An air pump 25 is connected to the end of the air inlet pipe 26 furthest from the hollow rod 24. The air pump 25 inflates the two fixing rods 22 through the air inlet pipe 26 and the hollow rod 24. By starting the air pump 25, air is pumped into the intake pipe 26 and the hollow rod 24. Since the hollow rod 24 connects the cavities inside the two fixed rods 22, the gas entering the hollow rod 24 can enter the cavity inside the fixed rod 22, thus pushing the piston 23 located inside the fixed rod 22 to move upward. The piston 23 then drives the lifting rod 21 to move upward, which in turn pushes the first plate 11 located at its top to move upward, thereby increasing the height of the first plate 11 and the second plate 12 from the ground. This continues until the first plate 11 and the second plate 12 are moved to a position a certain height from the top of the engine, making it easier to remove them from the scrapped car from the top of the engine. Similarly, because the engine needs to be lifted out of the scrapped car from the top, the two second flat plates 12 need to be unfolded and positioned directly above the car engine. Furthermore, the unfolded second flat plates 12 extend the distance between the two sets of lifting components 2, facilitating their placement on either side of the car. Therefore, to facilitate the unfolding of the two second flat plates 12, as follows... Figure 1 As shown, a folding assembly 5 is provided between the two sets of lifting assemblies 2 to unfold or fold the two second flat plates 12; The folding assembly 5 includes two electric push rods 51, each mounted on the front and rear sides of one of the first flat plates 11 via a mounting bracket 52. The fixed end of each electric push rod 51 is fixedly connected to the side wall of one of the reinforcing frame plates 13, and the moving end is fixedly connected to the side wall of the other reinforcing frame plate 13. Before adjusting the height of the first flat plate 11 and the second flat plate 12 using the lifting assembly 2, the electric push rods 51 are activated. The electric push rods 51 push one of the first flat plates 11 to one side, and the movement of the first flat plate 11 pulls the connected second flat plate 12 until both second flat plates 12 are unfolded. Figure 2-4 As shown, at this time, the electric push rod 51 also extends to its longest position, and the electric push rod 51 is closed.

[0023] Then, holding handle 14, move the invention, with the two second flat plates 12 unfolded, to the front of the scrapped car. Start the air pump 25 to raise the height of the first flat plate 11 and the second flat plate 12 so that they are above the car's hood. Then, holding the fixing rod 22, slowly push the invention until the second flat plate 12 is moved directly above the engine. Because the bottom of the two second flat plates 12 is equipped with a lifting assembly 6 for lifting the car engine, after the second flat plate 12 is moved directly above the engine, the engine, which has been dismantled by the workers, can be lifted out from the top using the lifting assembly 6, thus separating the engine from the scrapped car.

[0024] like Figure 3 and 7 As shown, the lifting assembly 6 for lifting a car engine includes two mounting boxes 61 respectively installed at the bottom of two second flat plates 12. When the second flat plates 12 are unfolded, the side walls of the two mounting boxes 61 are in contact. The interior of each mounting box 61 is movably connected to a rotating rod 62 via a bearing. The outer end of each rotating rod 62 is fixed with a first winding wheel 63. An L-shaped support rod 64 is fixed at the bottom of one of the mounting boxes 61. The bottom end of the L-shaped support rod 64 is rotatably connected to a second winding wheel 65. The outer end of the first winding wheel 63 located inside the other mounting box 61 is wound with a lifting rope 66. One end of the lifting rope 66 passes around the two first winding wheels 63 and the second winding wheel 65 in sequence and extends to the bottom of the second winding wheel 65. The end of the lifting rope 66 extending to the bottom of the second winding wheel 65 is fixed with a hook 67 for lifting the disassembled car engine. One end of one of the rotating rods 62 is fixedly connected to a forward and reverse motor 68 that drives the rotating rod 62 to rotate. This motor is used to wind or unwind the lifting rope 66 wound around the outer end of the first winding wheel 63. When the engine needs to be lifted, simply hang the hook 67 on the engine casing and start the forward and reverse motor 68. The forward and reverse motor 68 will drive the rotating rod 62 connected to the forward and reverse motor 68 and the first winding wheel 63 at its outer end to rotate. The rotation of the first winding wheel 63 will wind up the lifting rope 66, allowing the hook 67 installed at one end of the lifting rope 66 to move upward continuously, thereby removing the engine from the hood of the scrapped car.

[0025] Because the engine is quite heavy, and because the two second plates 12, as well as the first plate 11 and the second plate 12, are connected by hinges after unfolding, in order to prevent the two second plates 12 from rotating downwards due to force when lifting the car engine using the lifting assembly 6, as follows: Figure 4 , 6As shown in Figure 7, the folding assembly 5 also includes two first round rods 54 and four second round rods 55. The two first round rods 54 are respectively inserted into the interior of the first plate 11, which moves synchronously with the moving end of the electric push rod 51. The four second round rods 55 are respectively inserted into the interior of the two second plates 12. Two rod slots 53 are provided inside each first plate 11 and each second plate 12. The rod slots 53 inside the first plate 11 and the rod slots 53 inside the second plate 12 are connected to each other to accommodate the first round rods 54 and the second round rods 55. Each of the two first round rods 54 has a connecting block 56 fixed to its bottom at the end furthest from the second round rod 55. The two connecting blocks 56 have a common movable plate 57 fixed to their ends furthest from the first round rods 54. A lead screw nut is embedded in the middle of the bottom of the movable plate 57. A reciprocating lead screw 58 is internally threaded into this nut. Both ends of the reciprocating lead screw 58 are movably connected to mounting plates 59 via bearings. The top of the mounting plate 59 is fixedly connected to the bottom of the first flat plate 11 to fix the position of the reciprocating lead screw 58. A first bevel gear 510 is fixed to one end of the reciprocating lead screw 58. A second bevel gear 511 meshes with one side of the first bevel gear 510. A motor 512 is located at the bottom of the second bevel gear 511, driving its rotation. The motor 512 is fixed to the bottom of the first flat plate 11 via a bracket. After the two second plates 12 are unfolded, the motor 512 is started first. The motor 512 drives the second bevel gear 511 to drive the first bevel gear 510 to rotate. Then, the first bevel gear 510 drives the reciprocating screw 58 to rotate, so that the reciprocating screw 58 can drive the moving plate 57 to make linear movements along the outer end of the reciprocating screw 58. Finally, the moving plate 57 and the connecting block 56 drive the first round rod 54 to move inside the first plate 11, so that one end of the first round rod 54 can be inserted into the second plate 12 that is close to it. Moreover, when the first round rod 54 moves, it will push the second round rod 55 located inside the second plate 12 to move synchronously until one end of the second round rod 55 inside the other second plate 12 is inserted into the other first plate 11. Because the length of the internal groove 53 of the first plate 11 connected to the fixed end of the electric push rod 51 is half the length of the internal groove 53 of the other first plate 11, during the process of the moving plate 57 moving from one end of the reciprocating screw 58 to the other end, half of the second round rod 55 will be inserted into the other first plate 11. At this time, the middle of each second round rod 55 and the first round rod 54 is located at the connection between the first plate 11 and the second plate 12 or at the connection between two second plates 12. Figure 4 As shown, the first round rod 54 and the second round rod 55 can strengthen the connection between the first plate 11 and the second plate 12, as well as the connection between the two second plates 12, preventing the two second plates 12 from rotating downwards due to the downward force, thereby ensuring the smooth operation of the lifting assembly 6 in lifting the engine.

[0026] During the aforementioned movement, the moving plate 57 drives the first round rod 54 to move via the connecting block 56. To facilitate the smooth movement of the connecting block 56 within the first flat plate 11, as follows... Figure 7 As shown, two moving slots 515 are provided at the bottom of the first plate 11 for the connecting block 56 to move, and the reciprocating screw 58 is located between the two moving slots 515.

[0027] Furthermore, if it is necessary to lower the positions of the first plate 11 and the second plate 12, such as Figure 8 and 9 As shown, each hollow rod 24 is provided with an air outlet pipe 27 on one side. One end of the air outlet pipe 27 extends into the interior of the hollow rod 24 and is connected to the interior of the hollow rod 24. A solenoid valve 28 is fixed to the outer end of the air outlet pipe 27. After the air pump 25 inflates the fixed rod 22, the solenoid valve 28 at the outer end of the air outlet pipe 27 is opened. Then, under the pressure formed by the weight of the first plate 11, the second plate 12 and other structures on the top of the lifting rod 21, the lifting rod 21 will automatically push the piston 23 to move downward along the inner wall of the fixed rod 22 and squeeze the air inside the fixed rod 22 out of the air outlet pipe 27. When the height of the first plate 11 and the second plate 12 is reduced to a suitable position, the solenoid valve 28 is closed, which can block the gas discharge and stop the further reduction of the height of the first plate 11 and the second plate 12.

[0028] When the engine needs to be removed from the underside support of the car, the unfolded second plate 12 needs to be folded up. First, the height of the first plate 11 and the second plate 12 can be adjusted by opening the solenoid valve 28 at the outer end of the exhaust pipe 27. Then, the motor 512 is restarted, driving the reciprocating screw 58 to rotate. This allows the reciprocating screw 58 to move the moving plate 57 in the opposite direction along its outer end, thus retracting the first round rod 54, which was inserted into the second plate 12, back into the first plate 11. To retract the second round rod 55 back into the second plate 12 as well, ... Figure 4 and 5 As shown, two short plates 513 are fixed at the outer ends of the two second round rods 55. A spring 514 is fixedly connected to one side of the short plate 513. The end of the spring 514 away from the short plate 513 is fixedly connected to the inner wall of the second plate 12. When the first round rod 54 pushes the second round rod 55 to move inside the rod groove 53, it will stretch the spring 514 through the short plate 513. The stretched spring 514 can automatically pull the second round rod 55 to reset when the first round rod 54 resets. At this point, both the second round rod 55 and the first round rod 54 have been reset. Then, the electric push rod 51 can be activated to retract, causing one of the first flat plates 11 to move towards the other. During this movement, the two second flat plates 12 rotate downwards and fold together, as shown below. Figure 10-12 As shown, continue until the electric actuator 51 retracts to its shortest position. Then, you can push it by holding the handle 14. Figure 10-12 The invention shown is moved to the bottom of the car to receive the disassembled car engine from the bottom. The height of the first plate 11 can also be adjusted by the lifting component 2, so that the invention can be applied to cars with different chassis heights.

[0029] Furthermore, in this invention, the operation of the air pump 25, the electric push rod 51, the motor 512, the forward and reverse motor 68, and the opening and closing of the solenoid valve 28 are all remotely controlled by an external remote control device, such as a remote controller (a remote controller is a commonly used control method in the prior art and is a mature existing technology, so its specific structure and circuit composition are not described in detail in this invention). This invention has two different working modes, which can transfer the disassembled engine from the bottom or top of the car, solving the problem of limited use of traditional equipment. Moreover, the driving component in this invention can be remotely controlled by a remote controller, making the switching of the working modes of this invention more convenient.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A trolley for dismantling and removing scrapped automobile engines, characterized in that: The assembly includes a flat plate assembly (1) for disassembling scrapped car engines. The flat plate assembly (1) consists of two first flat plates (11) and two second flat plates (12). The two second flat plates (12) are located between the two first flat plates (11). The first flat plates (11) and the second flat plates (12) that are in contact with each other, as well as the two second flat plates (12), are connected by hinges. The bottom of each of the two first plates (11) is provided with a lifting assembly (2) for driving the first plate (11) and the second plate (12) to move up and down. The number of the lifting assemblies (2) is set to two sets. The bottom of each set of lifting assemblies (2) is provided with a base plate (3). Each base plate (3) has a moving wheel (4) fixed at both ends of its bottom. A folding assembly (5) is provided between the two sets of lifting components (2) to unfold or fold the two second plates (12); The bottom of the two second flat plates (12) is provided with lifting components (6) for lifting the car engine. The lifting assembly (2) drives the first plate (11) and the second plate (12) to rise so that the unfolded second plate (12) is located directly above the scrapped car engine, for removing the dismantled engine from the top of the scrapped car with the help of the lifting assembly (6). The lifting assembly (2) drives the first plate (11) to fall so that the folded second plate (12) is located directly below the scrapped car engine, for receiving the dismantled car engine from the bottom of the scrapped car.

2. The scrapped automobile engine dismantling trolley according to claim 1, characterized in that: Each lifting assembly (2) includes two lifting rods (21) installed on the bottom of the two first plates (11) on opposite sides. A piston (23) is fixed at the bottom of the lifting rod (21). A fixing rod (22) is provided at the outer end of the piston (23). The bottom end of the lifting rod (21) is inserted into the fixing rod (22). A cavity is machined inside the fixing rod (22). By injecting or venting gas into the cavity, the piston (23) can be pushed to move up and down inside the fixing rod (22). The piston (23) moving up and down drives the lifting rod (21) to move up or down. The bottom end of the fixing rod (22) is fixedly connected to the top of the base plate (3).

3. The scrapped automobile engine dismantling trolley according to claim 2, characterized in that: A hollow rod (24) is fixed between the two fixed rods (22) of each lifting assembly (2). The hollow rod (24) connects the cavity inside the two fixed rods (22). An air inlet pipe (26) is fixedly connected to the bottom of the hollow rod (24). An air pump (25) is connected to the end of the air inlet pipe (26) away from the hollow rod (24). The air pump (25) inflates the two fixed rods (22) with air through the air inlet pipe (26) and the hollow rod (24). Each hollow rod (24) is provided with an exhaust pipe (27) on one side. One end of the exhaust pipe (27) extends into the interior of the hollow rod (24) and is connected to the interior of the hollow rod (24). An electromagnetic valve (28) is fixed at the outer end of the exhaust pipe (27). The opening and closing of the electromagnetic valve (28) is used to control whether the gas in the hollow rod (24) can be discharged through the exhaust pipe (27).

4. The scrapped automobile engine removal trolley according to claim 3, characterized in that: A reinforcing frame plate (13) is fixed to the side of each of the two first plates (11) that is far apart from each other. The reinforcing frame plate (13) is fixed together with the first plate (11). A handle (14) is fixed to the side of each of the two reinforcing frame plates (13) that is far apart from the first plate (11).

5. The scrapped automobile engine removal trolley according to claim 4, characterized in that: The folding assembly (5) includes two electric push rods (51). The two electric push rods (51) are respectively mounted on the front and rear sides of one of the first plates (11) via mounting brackets (52). The fixed end of the electric push rod (51) is fixedly connected to the side wall of one of the reinforcing frame plates (13), and the moving end of the electric push rod (51) is fixedly connected to the side wall of the other reinforcing frame plate (13). The extension and retraction of the moving end of the electric push rod (51) can push the other reinforcing frame plate (13) and the first plate (11) connected to it to move together.

6. The scrapped automobile engine removal trolley according to claim 5, characterized in that: The folding assembly (5) also includes two first round rods (54) and four second round rods (55). The two first round rods (54) are respectively inserted into the first plate (11) that moves synchronously with the moving end of the electric push rod (51). The four second round rods (55) are respectively inserted into the two second plates (12). Each first plate (11) and each second plate (12) has two rod slots (53). The rod slots (53) inside the first plate (11) and the rod slots (53) inside the second plate (12) are connected to each other to accommodate the first round rods (54) and the second round rods (55). The length of the rod groove (53) inside the first plate (11) connected to the fixed end of the electric push rod (51) is half the length of the rod groove (53) inside the other first plate (11); Two first round rods (54) are each fixed with a connecting block (56) at the bottom of the end away from the second round rod (55). The two connecting blocks (56) are fixed with the same moving plate (57) at the end away from the first round rod (54). A lead screw nut is embedded in the middle of the bottom of the moving plate (57). A reciprocating lead screw (58) is threaded inside the lead screw nut. A first bevel gear (510) is fixed at one end of the reciprocating lead screw (58). A second bevel gear (511) meshes with one side of the first bevel gear (510). The bottom of the second bevel gear (511) is provided with a motor (512) that drives the second bevel gear (511) to rotate. By using the drive of the motor (512), the first round rod (54) can be pushed to move inside the rod groove (53), so that the first round rod (54) pushes the second round rod (55) to move inside the rod groove (53) until the first round rod (54) and the second round rod (55) are respectively inserted between the first plate (11) and the second plate (12) or at the connection between the two second plates (12).

7. The scrapped automobile engine dismantling trolley according to claim 6, characterized in that: Two short plates (513) are fixed to the outer ends of the two second round rods (55). A spring (514) is fixedly connected to one side of the short plate (513). The end of the spring (514) away from the short plate (513) is fixedly connected to the inner wall of the second plate (12). When the first round rod (54) pushes the second round rod (55) to move inside the rod groove (53), it will stretch the spring (514) through the short plate (513). The stretched spring (514) can automatically pull the second round rod (55) to reset when the first round rod (54) resets.

8. The scrapped automobile engine removal trolley according to claim 6, characterized in that: Both ends of the reciprocating screw (58) are movably connected to mounting plates (59) via bearings. The top of the mounting plate (59) is fixedly connected to the bottom of the first plate (11) to fix the position of the reciprocating screw (58). The motor (512) is fixed to the bottom of the first plate (11) by a bracket; The bottom of the first plate (11) has two moving slots (515) for the connecting block (56) to move, and the reciprocating screw (58) is located between the two moving slots (515).

9. A trolley for removing scrapped automobile engines according to claim 6, characterized in that: The lifting assembly (6) includes two mounting boxes (61) respectively installed at the bottom of two second plates (12). When the second plates (12) are unfolded, the side walls of the two mounting boxes (61) are in contact. The two mounting boxes (61) are connected to rotating rods (62) through bearings. Each rotating rod (62) has a first winding wheel (63) fixed at its outer end. One mounting box (61) has an L-shaped support rod (64) fixed at its bottom. The bottom end of the L-shaped support rod (64) is rotatably connected to a second winding wheel (65). The outer end of the first winding wheel (63) located inside the other mounting box (61) is wound with a lifting rope (66). One end of the lifting rope (66) passes around the two first winding wheels (63) and the second winding wheel (65) in sequence and extends to the bottom of the second winding wheel (65). The end of the lifting rope (66) extending to the bottom of the second winding wheel (65) is fixed with a hook (67) for lifting the disassembled car engine. One end of one of the rotating rods (62) is fixedly connected to a forward and reverse motor (68) that drives the rotating rod (62) to rotate. The forward and reverse motor (68) drives the rotating rod (62) and the first winding wheel (63) at its outer end to rotate, which is used to wind or release the hanging rope (66) wound around the outer end of the first winding wheel (63).

10. A trolley for removing scrapped automobile engines according to claim 9, characterized in that: The operation of the air pump (25), the electric push rod (51), the motor (512), the forward and reverse motor (68), and the opening and closing of the solenoid valve (28) are all remotely controlled by an external remote control device.

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