Safety stop triggering device for fork AGV

Abstract

This utility model relates to the field of forklift AGV technology, specifically a safety stop triggering device for forklift AGVs, including a fixed base plate, side blocks, guide baffles, detection handle blocks, connecting frames, detection sensors, detection sensor mounting brackets, and detection plates. When the detection handle block is activated and moves close to the fixed base plate, the detection plate, driven by the connecting frame, moves away from the detection end of the detection sensor. Upon detecting the detection plate's misalignment, the detection sensor sends a signal to the corresponding forklift AGV controller, causing the controller to initiate an emergency stop, preventing further accidents. The device is simple in structure and reliable in use. Furthermore, by adding a laser scanning sensor, this utility model can further enhance safety protection for the forklift AGV's forklift movement and improve its accident prevention capabilities.

Description

Technical Field

[0001] This utility model relates to the field of forklift AGV technology, specifically a safety stop triggering device suitable for forklift AGVs. Background Technology

[0002] AGV stands for "Automatic Guided Vehicle," referring to a transport vehicle equipped with electromagnetic or optical automatic guidance devices, capable of traveling along a prescribed guidance path, and possessing safety protection and various transfer functions. Forklift AGV, on the other hand, is an AGV with a fork structure or function.

[0003] Currently, the forks of forklift AGVs on the market generally lack corresponding detection and triggering devices such as safety edge protection at the fork tip position. They cannot transmit signals to the forklift AGV to alarm or control emergency stop when the fork tip is about to accidentally touch an obstacle, resulting in poor reliability. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a safety stop triggering device suitable for forklift AGVs.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A safety stop triggering device suitable for forklift AGVs includes a fixed base plate, a side block, a guide baffle, a detection handle block, a connecting frame, a detection sensor, a detection sensor mounting bracket, and a detection plate;

[0007] The fixed base plate is used for direct mounting on the fork tips of the corresponding forklift AGV. A side stop block is fixedly attached to the bottom surface of the fixed base plate on both sides along its length. A guide baffle is also fixedly attached to the side of each side stop block away from the fixed base plate. The length directions of the two side stops are parallel to the length direction of the fixed base plate, forming a guide channel with openings at both ends for the connecting frame to pass through. The fixed base plate limits the connecting frame located in the guide channel from above, and the two guide baffles limit the connecting frame located in the guide channel from below. The connecting frame is blocked in the guide channel by the two guide baffles. One end of the connecting frame protrudes from one end opening of the guide channel and is connected to the detection handle block. The other end of the connecting frame protrudes from the guide channel and forms a detection piece connecting part. The detection piece is installed on the detection piece connecting part. The detection sensor mounting bracket is fixedly connected to the two guide baffles respectively. The detection sensor is installed on the detection sensor mounting bracket and is used in conjunction with the detection piece. The detection sensor is connected and communicates with the controller of the corresponding forklift AGV. The detection handle block is located outside the fixed base plate and is used for direct contact detection with objects other than forklift AGV.

[0008] In normal operation, the detection handle block is located away from the fixed base plate, and the detection end of the detection sensor detects that the detection piece is in place. When the detection handle block is touched and moved closer to the fixed base plate, the detection piece moves away from the detection end of the detection sensor under the action of the connecting frame. After the detection end of the detection sensor detects that the detection piece is not in place, it sends a signal to the controller of the corresponding forklift AGV.

[0009] The length direction of the fixed base plate is parallel to the length direction of the forks of the connected fork AGV.

[0010] A laser scanning sensor is installed at the center of the bottom surface of the fixed base plate and between the two guide baffles. A connecting frame passing through the guide channel is located in the space outside the laser scanning sensor. The laser scanning sensor is connected and communicates with the controller of the corresponding forklift AGV.

[0011] The two guide baffles are also equipped with an outer protective frame located outside the laser scanning sensor, which provides external protection for the laser scanning sensor.

[0012] Each of the guide baffles is equipped with a spring plunger. The connecting frame is provided with positioning holes A and B for use with each of the spring plungers. Each of the spring plungers has a retractable top ball end, and the top ball end of each of the spring plungers is located on the side close to the connecting frame.

[0013] In normal conditions, the top ball end of each spring plunger is engaged in a corresponding positioning hole A; when the detection handle block is moved to a preset limit position close to the fixed base plate, the top ball end of each spring plunger is engaged in a corresponding positioning hole B.

[0014] Each of the guide baffles is formed with a spring plunger mounting seat for mounting a spring plunger. The inner side of each spring plunger mounting seat is provided with a spring plunger mounting threaded hole. The outer circumferential surface of each spring plunger is provided with an external thread that mates with the corresponding spring plunger mounting threaded hole. The axial center line of each spring plunger is perpendicular to the moving direction of the connecting frame.

[0015] The detection strip is L-shaped.

[0016] The bottom surface of the detection handle block is provided with a gripping groove.

[0017] The advantages and positive effects of this utility model are as follows:

[0018] 1. This utility model can cause the detection piece to move away from the detection end of the detection sensor under the action of the connecting frame when the detection handle block is touched and moved close to the fixed base plate. After the detection end of the detection sensor detects that the detection piece is not in place, it sends a signal to the controller of the corresponding forklift AGV, so that the controller of the forklift AGV controls the forklift AGV to stop urgently to avoid causing a bigger accident. It can also be easily reset manually. The structure is simple and the use is reliable.

[0019] 2. This utility model can scan obstacles within a certain range by setting a laser scanning sensor, so as to further meet the safety confirmation and protection of the fork AGV vehicle's fork direction movement, and improve the ability to prevent accidents. Attached Figure Description

[0020] Figure 1 This is one of the schematic diagrams of the main structure of this utility model;

[0021] Figure 2 This is the second schematic diagram of the main structure of this utility model;

[0022] Figure 3 for Figure 2 Enlarged view of point A;

[0023] Figure 4This is a schematic diagram of the structure of the present invention when it is installed on the forks of a forklift AGV.

[0024] In the figure: 1 is the fixed base plate, 2 is the side block, 3 is the guide baffle, 301 is the spring plunger mounting seat, 4 is the detection handle block, 401 is the gripping groove, 5 is the connecting frame, 501 is the detection piece connecting part, 6 is the detection sensor, 7 is the detection sensor mounting frame, 8 is the detection piece, 9 is the laser scanning sensor, 10 is the outer protective frame, 11 is the spring plunger, 1101 is the top ball end, 502 is the positioning hole A, and 503 is the positioning hole B;

[0025] 001 represents the fork tip. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail.

[0027] A safety stop triggering device suitable for forklift AGVs, such as Figure 1-4 As shown, this embodiment includes a fixed base plate 1, a side block 2, a guide baffle 3, a detection handle block 4, a connecting frame 5, a detection sensor 6, a detection sensor mounting bracket 7, and a detection piece 8.

[0028] In this embodiment, the fixing base plate 1 is used to be directly mounted on the fork tip 001 of the corresponding forklift AGV. The length direction of the fixing base plate 1 is parallel to the length direction of the forklift of the connected forklift AGV. In this embodiment, the fixing base plate 1 is mounted on the fork tip 001 of the corresponding forklift AGV by screws; as shown... Figure 4 As shown, the fork tip 001 of the fork-type AGV can be provided with a groove to facilitate the placement of the entire safety stop triggering device proposed in this utility model, so as to reduce the space occupied by the installation.

[0029] In this embodiment, a side stop 2 is fixedly attached to the bottom surface of the fixed substrate 1 on both sides of the fixed substrate 1 via screws. A guide baffle 3 is also fixedly attached to the side of each side stop 2 away from the fixed substrate 1 via screws. The length directions of the two side stop 2 are parallel to the length direction of the fixed substrate 1, forming a guide channel with openings at both ends for the connecting frame 5 to pass through. The fixed substrate 1 limits the connecting frame 5 located in the guide channel from above, and the two guide baffles 3 limit the connecting frame 5 located in the guide channel from below. The fixed substrate 1 and the two guide baffles 3 together... The connecting frame 5 is positioned within the guide channel. One end of the connecting frame 5 extends through an opening in the guide channel and connects to the detection handle block 4. The other end of the connecting frame 5 extends through the guide channel and forms a detection piece connecting part 501. The detection piece 8 is mounted on the detection piece connecting part 501. The detection sensor mounting bracket 7 is fixedly connected to two guide baffles 3. The detection sensor 6 is mounted on the detection sensor mounting bracket 7 and works in conjunction with the detection piece 8. The detection sensor 6 communicates with the controller of the corresponding forklift AGV. The detection handle block 4 is located outside the fixed base plate 1 and is used for direct contact detection with objects other than the forklift AGV, primarily facilitating manual triggering by the operator. In this embodiment, the detection sensor 6 can be a commercially available proximity switch or a non-contact ranging sensor, etc. The detection piece 8 is L-shaped, making it easy to process and install.

[0030] Under normal conditions, the detection handle block 4 is located away from the fixed base plate 1, and the detection end of the detection sensor 6 detects that the detection piece 8 is in place. When the detection handle block 4 is manually touched and moved closer to the fixed base plate 1, the detection piece 8, driven by the connecting frame 5, moves away from the detection end of the detection sensor 6. After the detection end of the detection sensor 6 detects that the detection piece 8 is not in place, it sends a signal to the controller of the corresponding forklift AGV. After receiving the signal from the detection sensor 6 that the detection piece 8 is not in place, the controller of the forklift AGV can control the forklift AGV to stop urgently, and can further connect to an alarm and activate the alarm. Workers can also press the detection handle block 4, under safe conditions, to ensure that the forklift AGV stops to the maximum extent when needed without malfunctioning, thus allowing for safe maintenance and repair work. In this embodiment, a gripping groove 401 is provided on the bottom surface of the detection handle block 4, facilitating manual reset by pulling the detection handle block 4.

[0031] Specifically, in this embodiment, a laser scanning sensor 9 is installed at the center of the bottom surface of the fixed base plate 1, between the two guide baffles 3. A connecting frame 5 passing through the guide channel is located in the space outside the laser scanning sensor 9. The laser scanning sensor 9 is connected and communicates with the controller of the corresponding forklift AGV. In this embodiment, the laser scanning sensor 9 is a commercially available product. Generally, a product capable of detecting obstacles within a three-meter range can be installed to further meet the safety confirmation and protection requirements of the forklift AGV's fork movement. The setting range can also be changed to ensure different working conditions. An outer protective frame 10 is also installed on the two guide baffles 3, located outside the laser scanning sensor 9, by screws. The outer protective frame 10 provides external protection for the laser scanning sensor 9; care should be taken to avoid interference with the detection end of the laser scanning sensor 9.

[0032] Specifically, such as Figure 2 and Figure 3 As shown, in this embodiment, each guide baffle 3 is equipped with a spring plunger 11. The connecting frame 5 has positioning holes A 502 and B 503 that mate with each spring plunger 11. Each spring plunger 11 has a retractable ball end 1101, and the ball end 1101 of each spring plunger 11 is located on the side close to the connecting frame 5. Each guide baffle 3 has a spring plunger mounting seat 301 for mounting the spring plunger 11. Each spring plunger mounting seat 301 has a spring plunger mounting threaded hole on its inner side, and each spring plunger 11 has an external thread on its outer circumferential surface that mates with the corresponding spring plunger mounting threaded hole, facilitating the installation and removal of the spring plunger 11. The axial centerline of each spring plunger 11 is perpendicular to the moving direction of the connecting frame 5. In this embodiment, each spring plunger 11 can be a commercially available product.

[0033] In normal operation, the ball end 1101 of each spring plunger 11 engages with a corresponding positioning hole A 502. When the detection handle block 4 is moved to a preset limit position close to the fixed base plate 1, the ball end 1101 of each spring plunger 11 engages with a corresponding positioning hole B 503. The engagement of the spring plungers 11 with the positioning holes A 502 and B 503 on the connecting frame 5 ensures that the connecting frame 5 is not easily affected by external forces in its initial position and at the corresponding position where an alarm signal should be emitted, thus preventing detection errors by the detection device and further ensuring the reliability of the safety detection effect.

Claims

1. A safety stop trigger device suitable for use with a forked AGV, characterized by: It includes a fixed base plate (1), a side block (2), a guide baffle (3), a detection handle block (4), a connecting frame (5), a detection sensor (6), a detection sensor mounting bracket (7), and a detection plate (8); The fixed base plate (1) is used to be directly installed on the fork tip (001) of the corresponding fork AGV. A side block (2) is fixedly fixed on the bottom surface of the fixed base plate (1) and on both sides of the fixed base plate (1) along its length. A guide baffle (3) is also fixedly fixed on the side of each side block (2) away from the fixed base plate (1). The length directions of the two side blocks (2) are parallel to the length direction of the fixed base plate (1). A guide channel with openings at both ends is formed between the two side blocks (2) for the connecting frame (5) to pass through. The fixed base plate (1) limits the connecting frame (5) located in the guide channel from above. The two guide baffles (3) limit the connecting frame (5) located in the guide channel from below. The connecting frame (5) and the two guide baffles (3) together block the connecting frame (5) in the guide channel. One end of the connecting frame (5) passes through the opening at one end of the guide channel and is connected to the detection handle block (4). The other end of the connecting frame (5) passes through the guide channel and forms a detection piece connecting part (501). The detection piece (8) is installed on the detection piece connecting part (501). The detection sensor mounting bracket (7) is fixedly connected to the two guide baffles (3) respectively. The detection sensor (6) is installed on the detection sensor mounting bracket (7) and is used in conjunction with the detection piece (8). The detection sensor (6) is connected and communicates with the controller of the corresponding forklift AGV. The detection handle block (4) is located outside the fixed base plate (1) and is used for direct contact detection with objects other than forklift AGV. In normal conditions, the detection handle block (4) is located away from the fixed base plate (1), and the detection end of the detection sensor (6) detects that the detection piece (8) is in place. When the detection handle block (4) is touched and moved closer to the fixed base plate (1), the detection piece (8) is moved away from the detection end of the detection sensor (6) by the connecting frame (5). After the detection end of the detection sensor (6) detects that the detection piece (8) is not in place, it sends a signal to the controller of the corresponding forklift AGV.

2. The safety stop trigger device for a fork-type AGV according to claim 1, characterized in that: The length direction of the fixed base plate (1) is parallel to the length direction of the fork of the connected fork AGV.

3. The safety stop trigger device for a forked AGV according to claim 1, wherein: A laser scanning sensor (9) is installed at the center of the bottom surface of the fixed base plate (1) and between the two guide baffles (3). The connecting frame (5) passing through the guide channel is located in the space outside the laser scanning sensor (9). The laser scanning sensor (9) is connected and communicates with the controller of the corresponding forklift AGV.

4. The safety stop trigger device for a forked AGV according to claim 3, characterized in that: The two guide baffles (3) are also equipped with an outer protective frame (10) located outside the laser scanning sensor (9), which provides external protection for the laser scanning sensor (9).

5. The safety stop trigger device for a forked AGV according to claim 1, wherein: Each of the guide baffles (3) is equipped with a spring plunger (11). The connecting frame (5) is provided with positioning holes A (502) and B (503) that cooperate with each of the spring plungers (11). Each of the spring plungers (11) has a retractable top ball end (1101). The top ball end (1101) of each of the spring plungers (11) is located on the side close to the connecting frame (5). In normal condition, the top ball end (1101) of each spring plunger (11) is respectively engaged in one of the corresponding positioning holes A (502); when the detection handle block (4) moves to the preset limit position close to the fixed base plate (1), the top ball end (1101) of each spring plunger (11) is respectively engaged in one of the corresponding positioning holes B (503).

6. The safety stop trigger device for a forked AGV according to claim 5, characterized in that: Each of the guide baffles (3) is formed with a spring plunger mounting seat (301) for mounting the spring plunger (11). The inner side of each spring plunger mounting seat (301) is provided with a spring plunger mounting threaded hole, and the outer circumferential surface of each spring plunger (11) is provided with an external thread that mates with the corresponding spring plunger mounting threaded hole. The axial center line of each spring plunger (11) is perpendicular to the moving direction of the connecting frame (5).

7. The safety stop trigger device for a forked AGV according to claim 1, wherein: The detection piece (8) is L-shaped.

8. The safety stop trigger device for a forked AGV according to claim 1, wherein: The bottom surface of the detection handle block (4) is provided with a gripping groove (401).

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