A narrow aisle three-way forklift with anti-collision function

Abstract

The present invention discloses a narrow-aisle three-way forklift with an anti-collision function, which relates to the technical field of forklifts. The present invention comprises a forklift body, a forklift fork, an anti-collision module, a straightening module and a locking module. When the three-way forklift picks up goods, the forklift body controls the height of the forklift fork, and then the forklift body moves toward the goods so that the forklift fork is inserted into the bottom end of the goods. After the forklift fork is inserted into the bottom end of the goods, the forklift body continues to advance the forklift fork. During the process of the forklift fork continuously moving forward, the goods push the anti-collision module to drive the straightening module to move, the straightening module clamps the goods and keeps the goods in the center position on the forklift fork. When the straightening module completes the clamping and positioning of the goods, the locking module is started to lock the anti-collision module and the straightening module, and a signal is sent to the forklift body. The forklift body displays that the clamping is in place, and the operator stops the forklift body from moving forward.

Description

Technical Field

[0001] The invention relates to the technical field of forklifts, in particular to a narrow-aisle three-way forklift with an anti-collision function. Background Art

[0002] With the rapid development of the logistics and warehousing industry, the application scenarios of narrow-aisle forklifts, as a core equipment for improving space utilization, are constantly expanding. Traditional narrow-aisle three-way forklifts use fork rotation and side shifting functions to achieve cargo handling in narrow aisles. However, in actual operation, due to the limited width of the aisle, which is only suitable for forklift driving, the driver's vision is limited and the operation precision is extremely high, resulting in frequent collision accidents. In addition, during the process of forking the goods, the center of gravity of the goods sometimes shifts to a certain extent, causing a greater force on one side of the forklift claw, resulting in problems such as cargo slipping and inaccurate placement. To this end, we need to design a narrow-aisle three-way forklift with anti-collision function. While having anti-collision function, it can also center the cargo and clamp it so that the center of gravity of the cargo falls on the symmetrical plane of the clamping claw to prevent the cargo from slipping. Summary of the Invention

[0003] The object of the present invention is to provide a narrow aisle three-way forklift with an anti-collision function to solve the problems raised in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The three-way forklift includes a forklift body, a forklift forkhead, an anti-collision module, a straightening module, and a locking module. The forklift forkhead is fixedly connected to the forklift body, part of the anti-collision module is slidingly connected to the forklift forkhead, part of the anti-collision module is fixedly connected to the forklift forkhead, the straightening module is fixedly connected to the anti-collision module, the locking module is fixedly connected to the forklift forkhead, the locking module is fixedly connected to the anti-collision module, and the locking module is fixedly connected to the straightening module.

[0006] When a three-way forklift picks up goods, the forklift body controls the height of the forklift fork, and then the forklift body moves toward the goods so that the forklift fork is inserted into the bottom of the goods. After the forklift fork is inserted into the bottom of the goods, the forklift body continues to push the forklift fork. As the forklift fork continues to move forward, the goods push the anti-collision module to drive the righting module to move. The righting module clamps the goods and keeps the goods in the center position on the forklift fork. When the righting module completes the clamping and positioning of the goods, the locking module is started to lock the anti-collision module and the righting module, and a signal is sent to the forklift body. The forklift body displays that the clamp is in place, and the operator stops the forklift body from moving forward.

[0007] Furthermore, the forklift body includes a standing operating platform and a three-way movable unit, the three-way movable unit and the standing operating platform are slidingly connected, the standing operating platform and the three-way movable unit are signal-connected, the three-way movable unit and the forklift fork are fixedly connected, and the standing operating platform and the locking module are signal-connected.

[0008] The operator stands on the standing operating table to control the three-way moving unit and the locking module to move the goods and unlock the locking module. When the locking module is locked, the standing operating table will display that the locking module is locked.

[0009] Furthermore, the three-way moving unit includes a front and rear moving frame, a driving electric cylinder, a first-level lifting frame, a second-level lifting frame and a left and right moving frame. The front and rear moving frames are slidingly connected to the standing operating platform. Two driving electric cylinders are provided, and both driving electric cylinders are connected to the standing operating platform signal. One driving electric cylinder is fixedly connected to the front and rear moving frames, and the output end of one driving electric cylinder is fixedly connected to the upper end of the first-level lifting frame. The first-level lifting frame is slidingly connected to the front and rear moving frames. Another driving electric cylinder is fixedly connected to the first-level lifting frame, and the output end of the other driving electric cylinder is fixedly connected to the upper end of the second-level lifting frame. The bottom end of the second-level lifting frame is provided with a guide rail, and the guide rail is fixedly connected to the second-level lifting frame. One end of the left and right moving frame is slidingly connected to the guide rail, and the other end of the left and right moving frame is provided with an electric roller. The left and right moving frames are signal-connected to the standing operating platform, and the electric roller is rotatably connected to the other end of the left and right moving frames. The electric roller is signal-connected to the standing operating platform, and the electric roller is fixedly connected to the forklift fork.

[0010] The front and rear moving frames control the forklift forks to realize the forward and backward transportation of goods. The left and right moving frames are electric moving frames. The standing operating platform is connected to the driving electric cylinder and the left and right moving frames. The standing operating platform controls the telescopic length of the driving electric cylinder, changes the relative height difference between the first-level lifting frame, the second-level lifting frame and the front and rear moving frames, and thus realizes the height adjustment of the goods in the vertical direction. The left and right moving frames are responsible for providing the goods with freedom in the left and right directions. The electric rollers move the goods in multiple angles to adapt to different transportation scenarios.

[0011] Furthermore, the forklift fork head includes a fixed plate, a fork claw and a roller. The fixed plate and the electric roller are fixedly connected, the fork claw and the fixed plate are fixedly connected, the fork claws are located on both sides of the bottom end of the fixed plate, a groove is provided on the fork claw, the roller is provided in the groove, and the roller and the fork claw are rotatably connected.

[0012] The fixed plate serves as the mounting base for the fork claws, anti-collision module and locking module, which facilitates the installation and positioning of the mounting bases of the fork claws, anti-collision module and locking module. The rolling direction of the roller rolls from the standing operating platform to the direction of the fork head. When the straightening module straightens and clamps the goods, the setting of the roller facilitates the movement of the goods on the fork claws.

[0013] Furthermore, two anti-collision modules are provided, and the two anti-collision modules are symmetrically arranged about the symmetry axis of the forklift fork head. The anti-collision module includes a connecting rod, a sliding block, a slide plate and an anti-collision reset unit. One end of the connecting rod is hinged to the fixed plate, the other end of the connecting rod is hinged to the sliding block, the sliding block and the slide plate are slidably connected, one end of the anti-collision reset unit is fixedly connected to the sliding block, and the other end of the anti-collision reset unit is fixedly connected to the slide plate.

[0014] The connecting rod is set at an angle. When the cargo continues to press the slide, the slide slides toward the side of the fixed plate. The connecting rods symmetrically arranged on both sides of the forklift fork push the sliding block to slide toward the central axis of the slide. When the sliding block slides, it drives the righting module to shrink toward the symmetrical axis surface of the forklift fork. The locking module locks the righting module and the anti-collision reset unit to achieve the righting and clamping of the cargo. When unloading the cargo, the standing operating platform unlocks the locking module, the anti-collision reset unit pushes the sliding block to gradually reset, the righting module releases the cargo, and then the cargo is unloaded.

[0015] Furthermore, the anti-collision reset unit includes an anti-collision reset spring, an anti-collision reset rod and an anti-collision reset cylinder. One end of the anti-collision reset spring is fixedly connected to the sliding block, the other end of the anti-collision reset spring is fixedly connected to the slide plate, the anti-collision reset rod is arranged in the anti-collision reset spring, one end of the anti-collision reset rod is fixedly connected to the sliding block, the other end of the anti-collision reset rod is inserted into the anti-collision reset cylinder, the anti-collision reset rod and the anti-collision reset cylinder are slidably connected, the anti-collision reset cylinder is arranged in the anti-collision reset spring, and hydraulic oil is arranged in the anti-collision reset cylinder.

[0016] Furthermore, a through hole is provided on the other end of the anti-collision reset rod, and an aperture adjustment plate is provided in the through hole on the other end of the anti-collision reset rod. The aperture adjustment plate is provided at the inlet and outlet ends of the through hole, and the aperture adjustment plate and the anti-collision reset rod are rotatably connected.

[0017] The anti-collision reset unit plays the role of shock absorption and delaying the reset speed of the slide plate, thereby improving the service life of the anti-collision module. When the slide plate is subjected to pressure by the cargo, the connecting rod pulls the sliding block, the anti-collision reset spring is compressed by the sliding block, and the anti-collision reset rod is inserted deep into the anti-collision reset cylinder. The hydraulic oil flows in from the inlet end of the through hole and flows out from the outlet end of the through hole until the locking module is started, locking the anti-collision reset unit, and the anti-collision reset rod no longer moves; when the locking module is unlocked, the anti-collision reset spring resets, pushing the sliding block to slide, and the sliding block pulls the anti-collision reset rod. During the process of the anti-collision reset rod being pulled and reset, the aperture adjustment plate rotates to reduce the flow aperture at the inlet and outlet ends of the through hole, thereby slowing down the reset speed of the slide plate and preventing the slide plate from resetting too quickly, causing vibration of the forklift body.

[0018] Furthermore, the righting module includes a left righting plate, a left return spring, a left pressure plate, a right righting plate, a right return spring and a right pressure plate. One end of the left righting plate is fixedly connected to the sliding block on one side of the slide plate, the left righting plate is slidably connected to the slide plate, one end of the left return spring is fixedly connected to the other end of the left righting plate, one end of the left return spring is fixedly connected to the left pressure plate, one end of the right right righting plate is fixedly connected to the sliding block on the other side of the slide plate, the right righting plate is slidably connected to the slide plate, one end of the right return spring is fixedly connected to the other end of the right righting plate, and the other end of the right return spring is fixedly connected to the right pressure plate. The left righting plate, the left return spring, the left pressure plate and the right righting plate, the right return spring and the right pressure plate correspond one to one and are symmetrical about the symmetry axis of the forklift fork head.

[0019] When the load is lifted, the left and right pressure plates are released, and the left and right pressure plates are compressed to the same length until the load is lifted and the load is locked.

[0020] Furthermore, the locking module includes a left socket, a left plug, a right socket, a right plug, a locking magnet, an electromagnet and a reset switch. The left socket is fixedly connected to the left straightening plate, and the left socket is located between the left straightening plate and the left pressure plate. The left plug is fixedly connected to the left pressure plate, and the left plug is located between the left socket and the left pressure plate. The right socket is fixedly connected to the right straightening plate, and the right socket is located between the right straightening plate and the right pressure plate. The right plug is fixedly connected to the right pressure plate, and the right plug is located between the right socket and the right pressure plate. The locking magnet is fixedly connected to the fixed plate, and the locking magnet is located between the fixed plate and the slide. The locking magnet is arranged at both ends of the fixed plate. The electromagnet is fixedly connected to the slide, and the electromagnet is located between the slide and the locking magnet. The electromagnet is arranged at both ends of the slide. The reset switch is fixedly connected to the fixed plate, and the reset switch is connected to the standing operating table signal.

[0021] Furthermore, when the left socket is connected to the left plug, the right socket is connected to the right plug, and the reset switch is turned on, the left socket, left plug, right socket, right plug, electromagnet and external power supply are connected in series through wires to form a complete circuit.

[0022] When the cargo presses the anti-collision module, the left and right pressure plates move toward the symmetrical axis of the fork claws at the same time. If the center of gravity of the cargo is biased to the left side of the fork claws, the left pressure plate pushes the cargo to move toward the right pressure plate, the left return spring is compressed, and the distance between the left pressure plate and the left straightening plate is shortened. The left plug is gradually inserted into the left socket until the left pressure plate pushes the center of gravity of the cargo to the symmetrical axis of the fork claws, and the right pressure plate begins to press on the right side of the cargo. At this time, the left and right pressure plates simultaneously apply pressure to the cargo, and the left and right return springs are simultaneously Compress the same length until the left plug and the right plug are fully inserted into the left socket and the right socket respectively. At this time, the left socket, left plug, right socket, right plug, electromagnet and external power supply are connected in series through wires to form a complete circuit. The electromagnet is energized and generates suction between it and the locking magnet to lock the anti-collision module and the righting module. The left pressure plate and the right pressure plate no longer move toward the symmetry axis of the fork claw, completing the clamping and positioning of the cargo; similarly, when the center of gravity of the cargo deviates to the right side of the fork claw, the clamping and positioning of the cargo is completed as above.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention is equipped with an anti-collision module, which can delay the compression and reset speed of the slide plate, preventing the speed from being too fast and generating a large impact force that causes vibration of the forklift body;

[0025] 2. The anti-collision module and the righting module of the present invention are linked. When the anti-collision module is impacted and compressed by the cargo, it can drive the righting module to clamp and position the cargo, keeping the center of gravity of the cargo on the symmetrical plane of the fork claws. This prevents the center of gravity of the cargo from shifting during loading and unloading, resulting in insufficient support force on one side of the clamping claws and causing safety accidents.

[0026] 3. The present invention is provided with a locking module, which cooperates with the anti-collision module and the righting module. When the left socket and the left plug in the locking module are connected, the right socket and the right plug are connected, and the reset switch is turned on, the left socket, the left plug, the right socket, the right plug, the electromagnet and the external power supply are connected in series through wires to form a complete circuit. The electromagnet is energized and generates suction between it and the locking magnet to lock the anti-collision module and the right pressure plate. The left pressure plate and the right pressure plate no longer move toward the symmetry axis plane of the fork claw, thereby completing the clamping and positioning of the cargo. At the same time, the signal transmitter on the reset switch sends a signal to the standing operating platform, and the signal receiver on the standing operating platform receives the signal. The operator sees the information change on the standing operating platform and stops pushing the fork claw, which plays a role in anti-collision detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall appearance structure of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the forklift body of the present invention;

[0029] Figure 3 It is a schematic diagram of the top view of the overall appearance of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the forklift of the present invention removed from the top;

[0031] Figure 5 This is a structural diagram of the present invention without the forklift body;

[0032] Figure 6 It is a structural schematic diagram of the anti-collision reset unit of the present invention;

[0033] Figure 7 Schematic diagram of the cross-sectional structure of the anti-collision reset unit of the present invention;

[0034] Figure 8 It is a structural schematic diagram of the locking magnet, connecting rod, reset switch and fixing plate of the present invention;

[0035] Figure 9 for Figure 7 A magnified schematic diagram of local A.

[0036] Figure: 1. Forklift body; 2. Forklift fork; 3. Anti-collision module; 4. Righting module; 5. Locking module; 11. Standing operating platform; 12. Three-way moving unit; 13. Forward and backward moving frame; 14. Driving electric cylinder; 15. First-stage lifting frame; 16. Second-stage lifting frame; 17. Left and right moving frame; 18. Guide rail; 19. Electric roller; 21. Fixing plate; 22. Fork claw; 23. Roller; 31. Connecting rod; 32. Sliding block; 33 , slide plate; 34, anti-collision reset unit; 35, anti-collision reset spring; 36, anti-collision reset rod; 37, anti-collision reset cylinder; 38, aperture adjustment plate; 41, left straightening plate; 42, left reset spring; 43, left pressure plate; 44, right straightening plate; 45, right reset spring; 46, right pressure plate; 51, left socket; 52, left plug; 53, right socket; 54, right plug; 55, locking magnet; 56, electromagnet; 57, reset switch. DETAILED DESCRIPTION

[0037] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0038] Example: Figure 1 - Figure 9 As shown, the present invention provides a technical solution for a narrow aisle three-way forklift with anti-collision function:

[0039] like Figure 1 and Figure 3As shown, the three-way forklift includes a forklift body 1, a forklift forkhead 2, an anti-collision module 3, a straightening module 4, and a locking module 5. The forklift forkhead 2 is fixedly connected to the forklift body 1, part of the anti-collision module 3 is slidingly connected to the forklift forkhead 2, part of the anti-collision module 3 is fixedly connected to the forklift forkhead 2, the straightening module 4 is fixedly connected to the anti-collision module 3, the locking module 5 is fixedly connected to the forklift forkhead 2, the locking module 5 is fixedly connected to the anti-collision module 3, and the locking module 5 is fixedly connected to the straightening module 4.

[0040] When the three-way forklift picks up the goods, the forklift body 1 controls the height of the forklift fork head 2, and then the forklift body 1 moves toward the goods so that the forklift fork head 2 is inserted into the bottom of the goods. After the forklift fork head 2 is inserted into the bottom of the goods, the forklift body 1 continues to push the forklift fork head 2. The anti-collision module 3 continues to move forward. The goods push the anti-collision module 3 to drive the righting module 4 to move. The righting module 4 clamps the goods and keeps the goods in the center position on the forklift fork head 2. At the same time that the righting module 4 completes the clamping and positioning of the goods, the locking module 5 is started to lock the anti-collision module 3 and the righting module 4, and sends a signal to the forklift body 1. The forklift body 1 displays that the clamping is in place, and the operator stops the forklift body 1 from moving forward.

[0041] like Figure 2 As shown, the forklift body 1 includes a standing operating platform 11 and a three-way movable unit 12. The three-way movable unit 12 and the standing operating platform 11 are slidingly connected, the standing operating platform 11 and the three-way movable unit 12 are signal-connected, the three-way movable unit 12 and the forklift fork head 2 are fixedly connected, and the standing operating platform 11 and the locking module 5 are signal-connected.

[0042] The operator stands on the standing operating platform 11 to control the three-way moving unit 12 and the locking module 5 to transport the goods and unlock the locking module 5. When the locking module 5 is locked, the standing operating platform 11 will display that the locking module 5 is locked.

[0043] like Figure 2 and Figure 3As shown, the three-way moving unit 12 includes a front and rear moving frame 13, a driving electric cylinder 14, a first-level lifting frame 15, a second-level lifting frame 16 and a left and right moving frame 17. The front and rear moving frames 13 are slidably connected to the standing operating platform 11. There are two driving electric cylinders 14. Both driving electric cylinders 14 are connected to the standing operating platform 11 by signal. One driving electric cylinder 14 is fixedly connected to the front and rear moving frames 13. The output end of one driving electric cylinder 14 is fixedly connected to the upper end of the first-level lifting frame 15. The first-level lifting frame 15 is slidably connected to the front and rear moving frames 13. The other driving electric cylinder 14 is connected to the first-level lifting frame 15 is fixedly connected, the output end of the other driving electric cylinder 14 is fixedly connected to the upper end of the secondary lifting frame 16, the bottom end of the secondary lifting frame 16 is provided with a guide rail 18, the guide rail 18 and the secondary lifting frame 16 are fixedly connected, one end of the left and right moving frame 17 is slidably connected to the guide rail 18, the other end of the left and right moving frame 17 is provided with an electric roller 19, the left and right moving frame 17 is signal-connected to the standing operating platform 11, the electric roller 19 is rotatably connected to the other end of the left and right moving frame 17, the electric roller 19 is signal-connected to the standing operating platform 11, and the electric roller 19 is fixedly connected to the forklift fork head 2.

[0044] The front and rear moving frames 13 control the forklift fork head 2 to realize the transportation of goods in the front and rear directions. The left and right moving frames 17 are electric moving frames. The standing operating platform 11 is connected to the driving electric cylinder 14 and the left and right moving frames 17 by signal. The standing operating platform 11 controls the telescopic length of the driving electric cylinder 14, changes the relative height difference between the first-level lifting frame 15, the second-level lifting frame 16 and the front and rear moving frames 13, and thus realizes the height adjustment of the goods in the vertical direction. The left and right moving frames 17 are responsible for providing the goods with freedom in the left and right directions. The electric rollers 19 are for moving the goods in multiple angles to adapt to different transportation scenarios.

[0045] like Figure 3 and Figure 5 As shown, the forklift fork head 2 includes a fixed plate 21, a fork claw 22 and a roller 23. The fixed plate 21 is fixedly connected to the electric roller 19, and the fork claw 22 is fixedly connected to the fixed plate 21. The fork claw 22 is located on both sides of the bottom end of the fixed plate 21. A groove is provided on the fork claw 22, and the roller 23 is provided in the groove. The roller 23 and the fork claw 22 are rotatably connected.

[0046] The fixed plate 21 serves as the mounting base for the fork claws 22, the anti-collision module 3 and the locking module 5, which facilitates the installation and positioning of the mounting bases of the fork claws 22, the anti-collision module 3 and the locking module 5. The rolling direction of the roller 23 rolls from the standing operating platform 11 to the direction of the fork claws 22. When the straightening module 4 straightens and clamps the goods, the setting of the roller 23 facilitates the movement of the goods on the fork claws 22.

[0047] like Figure 1 、 Figure 6 and Figure 7As shown, two anti-collision modules 3 are provided, and the two anti-collision modules 3 are symmetrically arranged about the symmetry axis of the forklift fork head 2. The anti-collision module 3 includes a connecting rod 31, a sliding block 32, a slide plate 33 and an anti-collision reset unit 34. One end of the connecting rod 31 is hinged to the fixed plate 21, and the other end of the connecting rod 31 is hinged to the sliding block 32. The sliding block 32 and the slide plate 33 are slidably connected. One end of the anti-collision reset unit 34 is fixedly connected to the sliding block 32, and the other end of the anti-collision reset unit 34 is fixedly connected to the slide plate 33.

[0048] The connecting rod 31 is set at an angle. When the cargo continues to press the slide plate 33, the slide plate 33 slides to one side of the fixed plate 21. The connecting rods 31 symmetrically set on both sides of the forklift fork head 2 push the sliding block 32 to slide toward the central axis of the slide plate 33. When the sliding block 32 slides, it drives the straightening module 4 to shrink toward the symmetrical axis surface of the forklift fork head 2. The locking module 5 locks the straightening module 4 and the anti-collision reset unit 34 to achieve the straightening and clamping of the cargo. When unloading the cargo, the standing operating platform 11 unlocks the locking module 5, and the anti-collision reset unit 34 pushes the sliding block 32 to gradually reset, and the straightening module 4 releases the cargo, and then the cargo is unloaded.

[0049] like Figure 6 As shown, the anti-collision reset unit 34 includes an anti-collision reset spring 35, an anti-collision reset rod 36 and an anti-collision reset cylinder 37. One end of the anti-collision reset spring 35 is fixedly connected to the sliding block 32, and the other end of the anti-collision reset spring 35 is fixedly connected to the slide plate 33. The anti-collision reset rod 36 is arranged in the anti-collision reset spring 35, one end of the anti-collision reset rod 36 is fixedly connected to the sliding block 32, and the other end of the anti-collision reset rod 36 is inserted into the anti-collision reset cylinder 37. The anti-collision reset rod 36 and the anti-collision reset cylinder 37 are slidably connected, the anti-collision reset cylinder 37 is arranged in the anti-collision reset spring 35, and hydraulic oil is arranged in the anti-collision reset cylinder 37.

[0050] like Figure 9 As shown, a through hole is provided on the other end of the anti-collision reset rod 36, and an aperture adjustment plate 38 is provided in the through hole on the other end of the anti-collision reset rod 36. The aperture adjustment plate 38 is provided at the inlet and outlet ends of the through hole, and the aperture adjustment plate 38 and the anti-collision reset rod 36 are rotatably connected.

[0051] The anti-collision reset unit 34 plays the role of shock absorption and delaying the reset speed of the slide plate 33, thereby improving the service life of the anti-collision module 3. When the slide plate 33 is subjected to pressure by the cargo, the connecting rod 31 pulls the sliding block 32, the anti-collision reset spring 35 is compressed by the sliding block 32, and the anti-collision reset rod 36 is inserted deep into the anti-collision reset cylinder 37. The hydraulic oil flows in from the inlet end of the through hole and flows out from the outlet end of the through hole until the locking module 5 is started, locking the anti-collision reset unit 34, and the anti-collision reset rod 36 no longer moves; when the locking module 5 is unlocked, the anti-collision reset spring 35 resets, pushing the sliding block 32 to slide, and the sliding block 32 pulls the anti-collision reset rod 36. During the process of the anti-collision reset rod 36 being pulled and reset, the aperture adjustment plate 38 rotates to reduce the flow aperture at the inlet and outlet ends of the through hole, thereby slowing down the reset speed of the slide plate 33 and preventing the reset speed of the slide plate 33 from being too fast, causing the forklift body 1 to vibrate.

[0052] like Figure 6 As shown, the straightening module 4 includes a left straightening plate 41, a left return spring 42, a left pressure plate 43, a right straightening plate 44, a right return spring 45 and a right pressure plate 46. One end of the left straightening plate 41 is fixedly connected to the sliding block 32 on one side of the slide plate 33, and the left straightening plate 41 and the slide plate 33 are slidably connected. One end of the left return spring 42 is fixedly connected to the other end of the left straightening plate 41, one end of the left return spring 42 is fixedly connected to the left pressure plate 43, one end of the right straightening plate 44 is fixedly connected to the sliding block 32 on the other side of the slide plate 33, and the right straightening plate 44 and the slide plate 33 are slidably connected, one end of the right return spring 45 is fixedly connected to the other end of the right straightening plate 44, and the other end of the right return spring 45 is fixedly connected to the right pressure plate 46. The left straightening plate 41, the left return spring 42, the left pressure plate 43 and the right straightening plate 44, the right return spring 45, and the right pressure plate 46 correspond one to one and are symmetrical about the symmetry axis of the forklift fork head 2.

[0053] The reset switch 57 is normally open. The reset switch 57 and the standing operating platform 11 are both provided with a signal transmitter and a signal receiver, so that the reset switch 57 and the standing operating platform 11 can send and receive signals to each other. When the cargo presses the anti-collision module 3, the left pressure plate 43 and the right pressure plate 46 move toward the symmetry axis of the fork claw 22 at the same time. If the center of gravity of the cargo deviates to the left side of the fork claw 22, the left pressure plate 43 pushes the cargo to move toward the side of the right pressure plate 46, the left reset spring 42 is compressed, and the distance between the left pressure plate 43 and the left straightening plate 41 is shortened until the left pressure plate When 43 pushes the center of gravity of the cargo to the symmetrical axis plane of the fork claw 22, the right pressure plate 46 begins to press on the right side of the cargo. At this time, the left pressure plate 43 and the right pressure plate 46 synchronously apply pressure to the cargo, and the left return spring 42 and the right return spring 45 are compressed to the same length at the same time until the locking module 5 is started, locking the anti-collision module 3 and the straightening module 4, and the left pressure plate 43 and the right pressure plate 46 no longer move toward the symmetrical axis plane of the fork claw 22, completing the clamping and positioning of the cargo; similarly, when the center of gravity of the cargo deviates to the right side of the fork claw 22, the clamping and positioning of the cargo is completed as above.

[0054] like Figure 4-9 As shown, the locking module 5 includes a left socket 51, a left plug 52, a right socket 53, a right plug 54, a locking magnet 55, an electromagnet 56 and a reset switch 57. The left socket 51 is fixedly connected to the left straightening plate 41, the left socket 51 is located between the left straightening plate 41 and the left pressure plate 43, the left plug 52 is fixedly connected to the left pressure plate 43, the left plug 52 is located between the left socket 51 and the left pressure plate 43, the right socket 53 is fixedly connected to the right straightening plate 44, the right socket 53 is located between the right straightening plate 44 and the right pressure plate 46, the right plug 54 is fixedly connected to the right pressure plate 43. The plate 46 is fixedly connected, the right plug 54 is located between the right socket 53 and the right pressure plate 46, the locking magnet 55 is fixedly connected to the fixed plate 21, the locking magnet 55 is located between the fixed plate 21 and the slide 33, and the locking magnet 55 is arranged at both ends of the fixed plate 21, the electromagnet 56 is fixedly connected to the slide 33, the electromagnet 56 is located between the slide 33 and the locking magnet 55, and the electromagnet 56 is arranged at both ends of the slide 33, the reset switch 57 is fixedly connected to the fixed plate 21, and the reset switch 57 is connected to the signal of the standing operating platform 11.

[0055] When the left socket 51 and the left plug 52 are connected, the right socket 53 and the right plug 54 are connected, and the reset switch 57 is turned on, the left socket 51, the left plug 52, the right socket 53, the right plug 54, the electromagnet 56 and the external power supply are connected in series through wires to form a complete circuit.

[0056] When the cargo presses the anti-collision module 3, the left pressure plate 43 and the right pressure plate 46 move toward the symmetrical axis of the fork claw 22 at the same time. If the center of gravity of the cargo deviates to the left side of the fork claw 22, the left pressure plate 43 pushes the cargo to the side of the right pressure plate 46, the left return spring 42 is compressed, and the distance between the left pressure plate 43 and the left straightening plate 41 is shortened. The left plug 52 is gradually inserted into the left socket 51 until the left pressure plate 43 pushes the center of gravity of the cargo to the symmetrical axis of the fork claw 22, and the right pressure plate 46 begins to press on the right side of the cargo. At this time, the left pressure plate 43 and the right pressure plate 46 synchronously apply pressure to the cargo, and the left return spring 42 and the right return spring 4 5 are compressed simultaneously to the same length until the left plug 52 and the right plug 54 are fully inserted into the left socket 51 and the right socket 53 respectively. At this time, the left socket 51, the left plug 52, the right socket 53, the right plug 54, the electromagnet 56 and the external power supply are connected in series through wires to form a complete circuit. The electromagnet 56 is energized and generates an attractive force with the locking magnet 55, locking the anti-collision module 3 and the straightening module 4. The left pressure plate 43 and the right pressure plate 46 no longer move toward the symmetry axis of the fork claw 22, and the cargo is clamped and positioned. Similarly, when the center of gravity of the cargo is biased to the right side of the fork claw 22, the cargo is clamped and positioned as described above.

[0057] The working principle of the present invention is as follows: when the three-way forklift picks up goods, the forklift body 1 controls the height of the forklift fork head 2, and then the forklift body 1 moves toward the direction of the goods, so that the forklift fork head 2 is inserted into the bottom end of the goods. After the forklift fork head 2 is inserted into the bottom end of the goods, the forklift body 1 continues to move forward, and the anti-collision module 3 drives the righting module 4 to move during the continuous forward movement of the forklift body 1. The righting module 4 clamps the goods and keeps the goods in the center position on the forklift fork head 2. At the same time that the righting module 4 completes the clamping and positioning of the goods, the locking module 5 is started to lock the anti-collision module 3 and the righting module 4, and send a signal to the forklift body 1. The forklift body 1 displays that the clamping is in place, and the operator stops the forklift body 1 from moving forward.

[0058] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A narrow aisle three-way forklift with anti-collision function, characterized by: The three-way forklift comprises a forklift body (1), a forklift fork head (2), an anti-collision module (3), a straightening module (4), and a locking module (5); the forklift fork head (2) is fixedly connected to the forklift body (1); part of the anti-collision module (3) and the forklift fork head (2) are slidably connected; part of the anti-collision module (3) and the forklift fork head (2) are fixedly connected; the straightening module (4) and the anti-collision module (3) are fixedly connected; the locking module (5) and the forklift fork head (2) are fixedly connected; the locking module (5) and the anti-collision module (3) are fixedly connected; and the locking module (5) and the straightening module (4) are fixedly connected; The locking module (5) includes a left socket (51), a left plug (52), a right socket (53), a right plug (54), a locking magnet (55), an electromagnet (56) and a reset switch (57), wherein the left socket (51) is fixedly connected to the left straightening plate (41), the left socket (51) is located between the left straightening plate (41) and the left pressure plate (43), the left plug (52) is fixedly connected to the left pressure plate (43), the left plug (52) is located between the left socket (51) and the left pressure plate (43), the right socket (53) is fixedly connected to the right straightening plate (44), the right socket (53) is located between the right straightening plate (44) and the right pressure plate (46), and the right plug (54 ) and the right pressure plate (46) are fixedly connected, the right plug (54) is located between the right socket (53) and the right pressure plate (46), the locking magnet (55) and the fixed plate (21) are fixedly connected, the locking magnet (55) is located between the fixed plate (21) and the slide (33), and the locking magnet (55) is arranged at both ends of the fixed plate (21), the electromagnet (56) and the slide (33) are fixedly connected, the electromagnet (56) is located between the slide (33) and the locking magnet (55), and the electromagnet (56) is arranged at both ends of the slide (33), the reset switch (57) and the fixed plate (21) are fixedly connected, and the reset switch (57) and the standing operating table (11) are signal-connected.

2. The narrow aisle three-way forklift with anti-collision function according to claim 1, characterized in that: The forklift body (1) comprises a standing operating platform (11) and a three-way movable unit (12); the three-way movable unit (12) and the standing operating platform (11) are slidably connected; the standing operating platform (11) and the three-way movable unit (12) are signal-connected; the three-way movable unit (12) and the forklift fork head (2) are fixedly connected; and the standing operating platform (11) and the locking module (5) are signal-connected.

3. The narrow aisle three-way forklift with anti-collision function according to claim 2, characterized in that: The three-way moving unit (12) includes a front and rear moving frame (13), a driving electric cylinder (14), a first-level lifting frame (15), a second-level lifting frame (16) and a left and right moving frame (17). The front and rear moving frames (13) are slidably connected to the standing operating platform (11). Two driving electric cylinders (14) are provided. Both driving electric cylinders are signal-connected to the standing operating platform (11). One driving electric cylinder (14) is fixedly connected to the front and rear moving frames (13). The output end of one driving electric cylinder (14) is fixedly connected to the upper end of the first-level lifting frame (15). The first-level lifting frame (15) is slidably connected to the front and rear moving frames (13). The other driving electric cylinder (14) is fixedly connected to the first-level lifting frame (15). The output end of the other driving electric cylinder (14) is fixedly connected to the upper end of the secondary lifting frame (16), the bottom end of the secondary lifting frame (16) is provided with a guide rail (18), the guide rail (18) and the secondary lifting frame (16) are fixedly connected, one end of the left and right moving frame (17) is slidably connected to the guide rail (18), the other end of the left and right moving frame (17) is provided with an electric roller (19), the left and right moving frame (17) and the standing operating table (11) are signal-connected, the electric roller (19) and the other end of the left and right moving frame (17) are rotationally connected, the electric roller (19) and the standing operating table (11) are signal-connected, and the electric roller (19) and the forklift fork head (2) are fixedly connected.

4. The narrow aisle three-way forklift with anti-collision function according to claim 3, characterized in that: The forklift fork head (2) comprises a fixed plate (21), a fork claw (22) and a roller (23), wherein the fixed plate (21) is fixedly connected to the electric roller (19), the fork claw (22) is fixedly connected to the fixed plate (21), the fork claw (22) is located on both sides of the bottom end of the fixed plate (21), the fork claw (22) is provided with a groove, the roller (23) is provided in the groove, and the roller (23) and the fork claw (22) are rotatably connected.

5. The narrow aisle three-way forklift with anti-collision function according to claim 4, characterized in that: Two anti-collision modules (3) are provided, and the two anti-collision modules (3) are symmetrically arranged about the symmetry axis of the forklift fork (2). The anti-collision module (3) includes a connecting rod (31), a sliding block (32), a slide plate (33) and an anti-collision reset unit (34). One end of the connecting rod (31) is hinged to the fixed plate (21), the other end of the connecting rod (31) is hinged to the sliding block (32), the sliding block (32) and the slide plate (33) are slidably connected, one end of the anti-collision reset unit (34) is fixedly connected to the sliding block (32), and the other end of the anti-collision reset unit (34) is fixedly connected to the slide plate (33).

6. The narrow aisle three-way forklift with anti-collision function according to claim 5, characterized in that: The anti-collision reset unit (34) includes an anti-collision reset spring (35), an anti-collision reset rod (36) and an anti-collision reset cylinder (37), one end of the anti-collision reset spring (35) is fixedly connected to the sliding block (32), the other end of the anti-collision reset spring (35) is fixedly connected to the slide plate (33), the anti-collision reset rod (36) is arranged in the anti-collision reset spring (35), one end of the anti-collision reset rod (36) is fixedly connected to the sliding block (32), the other end of the anti-collision reset rod (36) is inserted into the anti-collision reset cylinder (37), the anti-collision reset rod (36) and the anti-collision reset cylinder (37) are slidably connected, the anti-collision reset cylinder (37) is arranged in the anti-collision reset spring (35), and hydraulic oil is arranged in the anti-collision reset cylinder (37).

7. The narrow aisle three-way forklift with anti-collision function according to claim 6, characterized in that: A through hole is provided on the other end of the anti-collision reset rod (36), and an aperture adjustment piece (38) is provided in the through hole on the other end of the anti-collision reset rod (36). The aperture adjustment piece (38) is provided at the inlet end and the outlet end of the through hole, and the aperture adjustment piece (38) and the anti-collision reset rod (36) are rotatably connected.

8. The narrow aisle three-way forklift with anti-collision function according to claim 7, characterized in that: The straightening module (4) comprises a left straightening plate (41), a left return spring (42), a left pressure plate (43), a right straightening plate (44), a right return spring (45) and a right pressure plate (46), one end of the left straightening plate (41) is fixedly connected to the sliding block (32) on one side of the slide plate (33), the left straightening plate (41) and the slide plate (33) are slidably connected, one end of the left return spring (42) is fixedly connected to the other end of the left straightening plate (41), one end of the left return spring (42) is fixedly connected to the left pressure plate (43), and the right straightening plate ( One end of the right straightening plate (44) is fixedly connected to the sliding block (32) on the other side of the slide plate (33), the right straightening plate (44) is slidably connected to the slide plate (33), one end of the right return spring (45) is fixedly connected to the other end of the right straightening plate (44), the other end of the right return spring (45) is fixedly connected to the right pressure plate (46), and the left straightening plate (41), the left return spring (42), the left pressure plate (43) and the right straightening plate (44), the right return spring (45), and the right pressure plate (46) are symmetrical about the symmetry axis of the forklift fork head (2) in a one-to-one correspondence.

9. The narrow aisle three-way forklift with anti-collision function according to claim 8, characterized in that: When the left socket (51) and the left plug (52) are connected, the right socket (53) and the right plug (54) are connected, and the reset switch (57) is turned on, the left socket (51), the left plug (52), the right socket (53), the right plug (54), the electromagnet (56), the reset switch (57) and the external power supply are connected in series through wires to form a complete circuit.

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