Unmanned forklift fault protection device

Abstract

The utility model discloses an unmanned forklift fault protection device, which relates to the technical field of protection devices and comprises a mounting frame and a first buffer component. A buzzer alarm is mounted on the upper side of the mounting frame, two corresponding shifting assemblies and two corresponding second buffer assemblies are mounted on the left side and the right side of the interior of the mounting frame, the shifting assemblies are matched with the second buffer assemblies, and the input end of the buzzer alarm is electrically connected with the output end of a PLC in the unmanned forklift; the first buffering assembly comprises buffering plates, a rubber plate, a fixing rod, a first damping disc, a sliding groove and a first spring, the two corresponding buffering plates are slidably connected to the front end of the interior of the mounting frame, the unmanned forklift can be protected when collision occurs, meanwhile, the unmanned forklift can be controlled to stop automatically when collision occurs, and the safety of the unmanned forklift is improved. And an alarm is given, so that dangers are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of protection devices, in particular to a fault protection device for an unmanned forklift. Background Art

[0002] Unmanned forklift is a kind of logistics and transportation equipment based on automation technology, which can realize fully unattended automated operation. Compared with traditional manual operation or manual handling equipment, it has higher efficiency and lower safety risks, and can adapt to more diverse and complex logistics environments and needs. Unmanned forklifts are usually equipped with a variety of sensors and navigation technologies, which can realize functions such as autonomous navigation, path planning and obstacle avoidance. In addition, it can also realize intelligent transportation and warehousing management by connecting with the warehouse management system or logistics scheduling system, further improving logistics and warehousing efficiency;

[0003] In order to prevent damage due to collision, existing unmanned forklifts are equipped with anti-collision devices at the rear for protection. However, the existing anti-collision devices cannot promptly alert users when a collision occurs, which is prone to danger. Therefore, we propose a fault protection device for unmanned forklifts. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an unmanned forklift fault protection device, which can protect the unmanned forklift in the event of a collision, and can control the unmanned forklift to automatically stop and sound an alarm in the event of a collision to avoid danger, thereby effectively solving the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an unmanned forklift fault protection device, comprising a mounting frame and a first buffer assembly;

[0006] Installation frame: a buzzer alarm is installed on the upper side, two corresponding toggle assemblies and two corresponding second buffer assemblies are installed on the left and right sides inside the installation frame, the toggle assemblies and the second buffer assemblies cooperate with each other, and the input end of the buzzer alarm is electrically connected to the output end of the PLC controller inside the unmanned forklift;

[0007] The first buffer component: includes a buffer plate, a rubber plate, a fixing rod, a first damping disc, a slide groove and a first spring, the front end of the mounting frame is slidably connected with two corresponding buffer plates, the front side of the buffer plate is fixed with a rubber plate, the rear side of the buffer plate is fixed with a fixing rod, the rear end of the fixing rod is fixed with a first damping disc, two corresponding slide grooves are provided on the front side of the mounting frame, the first damping disc is slidably connected inside the slide groove, the rear side of the buffer plate is fixed with a first spring, both first springs are fixed inside the mounting frame, the rear side of the buffer plate is installed with a sensing component, and the front side of the mounting frame is buffered by setting the first buffer component.

[0008] Furthermore, the sensing component includes an extrusion block and a pressure sensor. The extrusion block is fixed on the rear side of the buffer plate, and the pressure sensor is installed in the middle of the rear side of the mounting frame. The pressure sensor corresponds to the two extrusion blocks. The input end of the pressure sensor is electrically connected to the output end of the PLC controller inside the unmanned forklift. The impact is sensed by setting the sensing component.

[0009] Furthermore, the toggle assembly includes a first rack, a gear and a bevel gear. Four corresponding gears are arranged on the left and right sides of the interior of the mounting frame. The four gears are rotatably connected to the left and right sides of the interior of the mounting frame and the left and right ends of the lower side of the interior of the mounting frame. A bevel gear is fixed on the end face of the gear, and two adjacent bevel gears are meshed with each other. A first rack is fixed to the rear side of the buffer plate, and the two first racks are respectively meshed with the two gears on the left and right sides of the interior. The buffer frame is connected to the buffer plate by setting the toggle assembly.

[0010] Furthermore, the second buffer assembly includes a buffer frame, a second rack, a connecting groove, a second damping disk, a second spring and a support rod. Two corresponding buffer frames are slidably connected on the left and right sides of the interior of the mounting frame. A second rack is fixed to the side of the buffer frame. The two second racks are meshed with two gears at the left and right ends of the lower side of the interior of the mounting frame. A connecting groove is provided on the side of the buffer frame. A second damping disk is slidably connected inside the connecting groove. A second spring is fixed to one end of the second damping disk. The second spring is fixed inside the connecting groove. A support rod is fixed to the other end of the second damping disk. The support rod is fixed to the left and right sides of the interior of the mounting frame. The left and right sides of the mounting frame are protected by setting the second buffer assembly.

[0011] Furthermore, two guide grooves are provided on the left and right sides of the interior of the installation frame, and guide bars are slidably connected to the interior of the guide grooves. The guide bars are fixed to the rear side of the buffer plate, and the moving direction of the buffer plate is limited by setting the guide bars.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the unmanned forklift fault protection device has the following advantages:

[0013] By setting the first buffer component, the buffer plate will move toward the inside of the mounting frame when it is hit, and the first damping disk connected to it will also move along the slide groove during its movement. In this way, the impact can be buffered. At the same time, the buffer plate will also drive the extrusion block connected to it to move backward when it is hit. When it contacts the pressure sensor, the pressure sensor will send this signal to the PLC controller inside the unmanned forklift. In this case, the PLC controller inside the unmanned forklift will automatically control the unmanned vehicle to stop, and will also control the buzzer alarm to remind the user to avoid danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0015] Figure 2 This is an enlarged view of point A of the utility model;

[0016] Figure 3 It is a cross-sectional view of the upper side of the utility model;

[0017] Figure 4 It is an enlarged view of point B of the present utility model.

[0018] In the figure: 1 mounting frame, 2 first buffer assembly, 21 buffer plate, 22 rubber plate, 23 fixing rod, 24 first damping disc, 25 slide groove, 26 first spring, 3 sensing assembly, 31 extrusion block, 32 pressure sensor, 4 toggle assembly, 41 first rack, 42 ​​gear, 43 bevel gear, 5 second buffer assembly, 51 buffer frame, 52 second rack, 53 connecting groove, 54 second damping disc, 55 second spring, 56 support rod, 6 guide bar, 7 buzzer alarm. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1-4 ,This embodiment provides a technical solution: a fault protection device for an unmanned forklift, comprising a mounting frame 1 and a first buffer assembly 2;

[0021] Installation frame 1: A buzzer alarm 7 is installed on the upper side. Two corresponding toggle components 4 and two corresponding second buffer components 5 are installed on the left and right sides inside the installation frame 1. The toggle component 4 and the second buffer component 5 cooperate with each other. The input end of the buzzer alarm 7 is electrically connected to the output end of the PLC controller inside the driverless forklift. The toggle component 4 includes a first rack 41, a gear 42, and a bevel gear 43. Four corresponding gears 42 are arranged on the left and right sides inside the installation frame 1. The four gears 42 are respectively rotatably connected to the left and right ends of the left and right sides inside the installation frame 1 and the lower side inside the installation frame 1. A bevel gear 43 is fixed on the end face of the gear 42. Two adjacent bevel gears 43 are meshed with each other. A first rack 41 is fixed on the rear side of the buffer plate 21. The two first racks 41 are respectively meshed with the two gears 42 on the left and right sides inside. The second buffer component 5 includes a buffer frame 51, a second rack 52, a connection groove 53, a second damping disc 54, a second spring 55, and a support rod 56. Two corresponding buffer frames 51 are slidably connected to the left and right sides inside the installation frame 1. A second rack 52 is fixed on the side of the buffer frame 51. The two second racks 52 are meshed with the two gears 42 at the left and right ends of the lower side inside the installation frame 1. A connection groove 53 is formed on the side of the buffer frame 51. A second damping disc 54 is slidably connected inside the connection groove 53. One end of the second damping disc 54 is fixed with a second spring 55. The second spring 55 is fixed inside the connection groove 53. The other end of the second damping disc 54 is fixed with a support rod 56. The support rod 56 is fixed on the left and right sides inside the installation frame 1. The left and right sides of the installation frame 1 are protected by setting the second buffer component 5, and the buffer frame 51 is connected to the buffer plate 21 by setting the toggle component 4;

[0022] The first buffer component 2: It includes a buffer plate 21, a rubber plate 22, a fixed rod 23, a first damping disc 24, a sliding groove 25, and a first spring 26. Two corresponding buffer plates 21 are slidably connected to the front end inside the installation frame 1. A rubber plate 22 is fixed on the front side of the buffer plate 21. A fixed rod 23 is fixed on the rear side of the buffer plate 21. A first damping disc 24 is fixed on the rear end of the fixed rod 23. Two corresponding sliding grooves 25 are formed on the front side inside the installation frame 1. The first damping disc 24 is slidably connected inside the sliding groove 25. A first spring 26 is fixed on the rear side of the buffer plate 21. The two first springs 26 are both fixed inside the installation frame 1. An induction component 3 is installed on the rear side of the buffer plate 21. The induction component 3 includes a pressing block 31 and a pressure sensor 32. A pressing block 31 is fixed on the rear side of the buffer plate 21. A pressure sensor 32 is installed in the middle of the rear side inside the installation frame 1. The pressure sensor 32 corresponds to the two pressing blocks 31. The input end of the pressure sensor 32 is electrically connected to the output end of the PLC controller inside the driverless forklift. The impact suffered is sensed by setting the induction component 3, and the front side of the installation frame 1 is buffered by setting the first buffer component 2.

[0023] Wherein: two guide grooves are formed on the left and right sides inside the installation frame 1, and a guide bar 6 is slidably connected inside the guide grooves. The guide bar 6 is fixed to the rear side of the buffer plate 21, and the moving direction of the buffer plate 21 is defined by setting the guide bar 6.

[0024] The working principle of a fault protection device for an autonomous forklift provided by the present utility model is as follows: First, the installation frame 1 is fixed to the tail of the autonomous forklift through bolts. After fixation, when the buffer plate 21 is impacted, it will move towards the inside of the installation frame 1. During its movement, the first damping disc 24 connected thereto will also move along the sliding groove 25. In this case, the impact received can be buffered. At the same time, when the buffer plate 21 is impacted, it will also drive the extrusion block 31 connected thereto to move backward. When it contacts the pressure sensor 32, the pressure sensor 32 will send this signal to the PLC controller inside the autonomous forklift. In this case, the PLC controller inside the autonomous forklift will automatically control the autonomous forklift to stop, and at the same time, it will also control the buzzer alarm 7 to work to remind the user to avoid danger. When the left and right sides of the installation frame 1 are impacted, the buffer frame 51 at the impact point will move. The movement of the buffer frame 51 drives the second rack 52 connected thereto to move. The movement of the second rack 52 drives the gear 42 meshing with it below to rotate, so that the bevel gear 43 on the gear 42 rotates. The rotation of the lower bevel gear 43 drives the bevel gears 43 meshing with it on the left and right sides inside the installation frame 1 to rotate, so that the first rack 41 moves. The movement of the first rack 41 drives the buffer plate 21 connected thereto to move, so that the extrusion block 31 on its rear side presses the pressure sensor 32. In this case, the PLC controller inside the autonomous forklift will also automatically control the autonomous forklift to stop, and at the same time, it will also control the buzzer alarm 7 to work to remind the user to avoid danger.

[0025] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, are equally included in the patent protection scope of the present utility model.

Claims

1. A failure protection device for an unmanned forklift, characterized in that: It comprises a mounting frame (1) and a first buffer component (2); The mounting frame (1) has a buzzer alarm (7) mounted on the upper side. Two corresponding toggle assemblies (4) and two corresponding second buffer assemblies (5) are mounted on the left and right sides of the mounting frame (1). The toggle assemblies (4) and the second buffer assemblies (5) cooperate with each other. The input end of the buzzer alarm (7) is electrically connected to the output end of the PLC controller inside the unmanned forklift. The first buffer component (2) comprises a buffer plate (21), a rubber plate (22), a fixing rod (23), a first damping disc (24), a slide groove (25) and a first spring (26); the front end of the interior of the mounting frame (1) is slidably connected to two corresponding buffer plates (21); the front side of the buffer plate (21) is fixed with a rubber plate (22); the rear side of the buffer plate (21) is fixed with a fixing rod (23); the rear end of the fixing rod (23) is fixed with a first damping disc (24); the front side of the interior of the mounting frame (1) is provided with two corresponding slide grooves (25); the first damping disc (24) is slidably connected to the interior of the slide groove (25); the rear side of the buffer plate (21) is fixed with a first spring (26); both first springs (26) are fixed to the interior of the mounting frame (1); and the rear side of the buffer plate (21) is installed with a sensing component (3).

2. The fault protection device for an unmanned forklift according to claim 1, wherein: The sensing component (3) comprises an extrusion block (31) and a pressure sensor (32); the extrusion block (31) is fixed to the rear side of the buffer plate (21); the pressure sensor (32) is installed in the middle of the rear side inside the mounting frame (1); the pressure sensor (32) corresponds to the two extrusion blocks (31); the input end of the pressure sensor (32) is electrically connected to the output end of a PLC controller inside the unmanned forklift.

3. The fault protection device for an unmanned forklift according to claim 1, characterized in that: The shifting assembly (4) comprises a first rack (41), a gear (42) and a bevel gear (43); four corresponding gears (42) are arranged on the left and right sides of the interior of the mounting frame (1); the four gears (42) are rotatably connected to the left and right sides of the interior of the mounting frame (1) and the left and right ends of the lower side of the interior of the mounting frame (1); a bevel gear (43) is fixed on the end surface of the gear (42); two adjacent bevel gears (43) are meshed with each other; a first rack (41) is fixed on the rear side of the buffer plate (21); the two first racks (41) are respectively meshed with the two gears (42) on the left and right sides of the interior.

4. The failure protection device for an unmanned forklift according to claim 1, wherein: The second buffer assembly (5) includes a buffer frame (51), a second rack (52), a connection groove (53), a second damping disc (54), a second spring (55), and a support rod (56). Two corresponding buffer frames (51) are slidably connected to the left and right sides inside the mounting frame (1). A second rack (52) is fixed to the side surface of the buffer frame (51). The two second racks (52) are engaged with two gears (42) at the left and right ends of the lower side inside the mounting frame (1). A connection groove (53) is formed on the side surface of the buffer frame (51). A second damping disc (54) is slidably connected to the inside of the connection groove (53). One end of the second damping disc (54) is fixed with a second spring (55), and the second spring (55) is fixed inside the connection groove (53). The other end of the second damping disc (54) is fixed with a support rod (56), and the support rod (56) is fixed to the left and right sides inside the mounting frame (1).

5. The fault protection device for an unmanned forklift according to claim 1, wherein: Two guide grooves are formed on the left and right sides inside the mounting frame (1). A guide strip (6) is slidably connected to the inside of the guide groove, and the guide strip (6) is fixed to the rear side of the buffer plate (21).

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