A pole tip safety protection device for a rod-type AGV

Abstract

This utility model discloses a safety protection device for the tip of a forklift in a tandem AGV, specifically relating to the field of AGV technology. It includes a mounting base fixedly mounted on the tip of the forklift; a fixing plate fixedly mounted inside the mounting base; and an obstacle detection block mounted on the mounting base, elastically connected to the mounting base via a return spring. A proximity switch facing the obstacle detection block is fixedly mounted on the fixing plate, and a trigger element is fixedly mounted on the obstacle detection block, with the trigger element and the sensing end of the proximity switch opposite each other. A photoelectric sensor is disposed in the center of the obstacle detection block. This utility model utilizes the non-contact detection of the photoelectric sensor and the non-interfering mechanical collision detection, allowing them to work simultaneously and increase the detection range. The combined use of these two technologies enhances the detection of the surrounding environment by the forklift tip, enabling a more accurate assessment of the vehicle's surrounding working environment.

Description

Technical Field

[0001] This utility model relates to the field of AGV technology, and more specifically, to a pole tip safety protection device for a rod-type AGV. Background Technology

[0002] It is known that AGVs with connecting rods are mainly used for the distribution of raw materials such as coils and reels, as well as the transportation and storage of semi-finished and finished products on the production line. Because the tip of the connecting rod is prone to hitting obstacles and causing safety accidents during the handling of goods, it is necessary to install a safety protection device for the rod tip to enable timely emergency braking.

[0003] However, in practical applications, existing pole tip safety protection devices often use non-contact photoelectric sensors or ultrasonic sensors; however, non-contact sensors have limited detection range, large blind zones, and are easily affected by the surrounding environment. Therefore, a pole tip safety protection device for rod-type AGVs is proposed as a further improvement to enhance the detection sensitivity of the pole tip safety protection device. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a pole tip safety protection device for a rod-type AGV to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pole tip safety protection device for a rod-type AGV, comprising:

[0006] Mounting bracket, which is fixedly mounted on the tip of the forks;

[0007] A mounting plate fixedly installed inside the mounting base; and,

[0008] An obstacle detection block is mounted on a mounting base, and the obstacle detection block is elastically connected to the mounting base via a return spring;

[0009] A proximity switch facing the obstacle detection block is fixedly installed on the fixed plate. A trigger element is fixedly installed on the obstacle detection block, and the trigger element is arranged opposite to the sensing end of the proximity switch. A photoelectric sensor is arranged in the middle of the obstacle detection block.

[0010] Furthermore, the mounting base has a telescopic groove at the end away from the fork, the fixing plate is fixedly installed on the inner wall of the telescopic groove near the fork, the obstacle detection block has a through first mounting hole, the first mounting hole is slidably connected to a limiting member, one end of the limiting member is engaged with the first mounting hole, and the other end of the limiting member passes through the first mounting hole and is fixedly connected to the inner wall of the telescopic groove, and the obstacle detection block slides along the limiting member inside the telescopic groove.

[0011] Furthermore, the reset spring is movably sleeved on the limiting member, and the two ends of the reset spring are fixedly connected to the obstacle detection block and the telescopic groove, respectively.

[0012] Furthermore, a photoelectric detection through hole is provided in the middle of the obstacle detection block, and a photoelectric mounting base is fixedly installed on the side of the obstacle detection block near the fixing plate. The photoelectric sensor is fixedly installed on the photoelectric mounting base, and the light propagation path of the photoelectric sensor passes through the photoelectric detection through hole.

[0013] Furthermore, the shape of the photoelectric mounting base is set to L-shape.

[0014] Furthermore, the obstacle detection block is provided with a second mounting hole, and the triggering element is fixedly installed in the second mounting hole. The triggering element moves toward the proximity switch under the drive of an external force to trigger a signal.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] Compared with existing technologies, the pole tip safety protection device of this utility model not only retains the non-contact detection of photoelectric sensors, but also adds mechanical collision detection to increase the detection range. Moreover, the non-contact detection of photoelectric sensors and mechanical collision detection do not interfere with each other and can work simultaneously. Furthermore, the combined use of the two increases the detection of the surrounding environment by the pole tip, and more accurately judges the working environment around the vehicle, which plays an important role in the safe loading, unloading and reversing of AGVs. It will conduct more comprehensive detection of the environment at the front end of the pole to ensure the safe operation of AGVs. It solves the technical problems of low detection sensitivity, limited detection range, large blind zone and susceptibility to the surrounding environment of existing pole tip safety protection devices. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional structural diagram of the obstacle detection block and mounting base of this utility model.

[0019] The attached figures are labeled as follows: 10, mounting base; 11, telescopic groove; 20, fixing plate; 30, obstacle detection block; 31, first mounting hole; 32, photoelectric detection through hole; 33, second mounting hole; 40, reset spring; 50, proximity switch; 60, trigger element; 70, photoelectric sensor; 80, limit component; 90, photoelectric fixing base. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] As attached Figure 1 and attached Figure 2 The illustrated pole tip safety protection device for a rod-type AGV includes:

[0022] Mounting base 10, which is fixedly mounted on the tip of the fork;

[0023] A fixing plate 20 is fixedly installed inside the mounting base 10; and,

[0024] An obstacle detection block 30 is installed on the mounting base 10. The obstacle detection block 30 is elastically connected to the mounting base 10 via a return spring 40. The obstacle detection block 30 is made of nylon.

[0025] A proximity switch 50 facing the obstacle detection block 30 is fixedly installed on the fixed plate 20. A trigger element 60 is fixedly installed on the obstacle detection block 30, and the trigger element 60 is arranged opposite to the sensing end of the proximity switch 50. A photoelectric sensor 70 is arranged in the middle of the obstacle detection block 30, and the photoelectric sensor 70 detects obstacles at a certain distance.

[0026] The obstacle detection block 30 is equipped with a photoelectric sensor 70 that can perform non-contact detection. The proximity switch 50 is located inside the mounting base 10 on the side away from the obstacle detection block 30. The obstacle detection block 30 is equipped with a trigger element 60. That is, the movement of the obstacle detection block 30 drives the trigger element 60 to move, and then the trigger element 60 triggers the proximity switch 50 to achieve mechanical collision detection.

[0027] Therefore, this utility model uses a photoelectric sensor 70 to detect obstacles at a certain distance. When the obstacle is in the blind zone of the photoelectric sensor 70, the object can be detected by the mechanical structure constructed by the obstacle detection block 30, the trigger element 60 and the proximity switch 50. When a collision occurs, the obstacle detection block 30 and the trigger element 60 move in a straight line. Once the obstacle detection block 30 is displaced, it drives the trigger element 60 to move toward the proximity switch 50. When the trigger element 60 approaches the proximity switch 50, it will change its state and trigger the vehicle control system to stop.

[0028] The trigger element 60 can be a trigger screw to facilitate triggering the proximity switch 50.

[0029] In a preferred embodiment, as shown in the appendix Figure 1 and attached Figure 2As shown, the mounting base 10 has a telescopic groove 11 at the end away from the fork. The fixing plate 20 is fixedly installed on the inner wall of the telescopic groove 11 near the fork. The obstacle detection block 30 has a through first mounting hole 31. The first mounting hole 31 is slidably connected to a limiting member 80, and one end of the limiting member 80 is engaged with the first mounting hole 31. The other end of the limiting member 80 passes through the first mounting hole 31 and is fixedly connected to the inner wall of the telescopic groove 11. The obstacle detection block 30 slides along the limiting member 80 inside the telescopic groove 11. The obstacle detection block 30 is connected to the mounting base 10 through the limiting member 80, which can be bolted to facilitate its installation into the mounting base 10. When the obstacle detection block 30 is moved by an external force, it will drive the trigger element 60 to move along the limiting member 80.

[0030] In a preferred embodiment, as shown in the appendix Figure 1 and attached Figure 2 As shown, the reset spring 40 is movably sleeved on the limiting member 80, and the two ends of the reset spring 40 are fixedly connected to the obstacle detection block 30 and the telescopic groove 11, respectively. Thus, when the obstacle detection block 30 is subjected to external force and drives the trigger element 60 to move along the limiting member 80, the obstacle detection block 30 will compress the reset spring 40. After the external force disappears, the reset spring 40 will reset and restore the obstacle detection block 30 to its initial position.

[0031] In a preferred embodiment, as shown in the appendix Figure 1 and attached Figure 2 As shown, the obstacle detection block 30 has a photoelectric detection through hole 32 in the middle. A photoelectric mounting base 90 is fixedly installed on the side of the obstacle detection block 30 near the mounting plate 20. The photoelectric sensor 70 is fixedly installed on the photoelectric mounting base 90, and the light propagation path of the photoelectric sensor 70 passes through the photoelectric detection through hole 32. Thus, the photoelectric sensor 70 can detect obstacles at a certain distance through the photoelectric detection through hole 32.

[0032] In a preferred embodiment, as shown in the appendix Figure 1 and attached Figure 2 As shown, the photoelectric mounting base 90 is L-shaped to facilitate installation and disassembly, and to ensure accurate installation of the photoelectric sensor 70.

[0033] In a preferred embodiment, as shown in the appendix Figure 1 and attached Figure 2 As shown, the obstacle detection block 30 has a second mounting hole 33, and the trigger element 60 is fixedly installed in the second mounting hole 33. The trigger element 60 moves toward the proximity switch 50 under the drive of external force to trigger a signal; so as to ensure that the movement of the trigger element 60 triggers the proximity switch 50, thereby triggering the vehicle control system to stop.

[0034] The working principle of this utility model is as follows: When an obstacle is within the detection range of the photoelectric sensor 70, the photoelectric sensor 70 triggers a signal to control the vehicle to stop. When the obstacle is not detected by the photoelectric sensor 70, the connecting rod approaches the obstacle and collides with it. At this time, the obstacle detection block 30 and the mounting base 10 are relatively displaced. The displacement is transmitted along the obstacle detection block 30 to the trigger element 60, which moves accordingly, causing the output signal of the proximity switch 50 to change. The trigger signal then controls the vehicle to stop. When the obstacle is removed, the obstacle detection block 30 returns to its initial state under the action of the reset spring 40 and the limiting member 80.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for the tip of a rod-type AGV, characterized in that: include: Mounting base (10), which is fixedly mounted on the tip of the fork; A fixing plate (20) is fixedly installed inside the mounting base (10); and, An obstacle detection block (30) is mounted on the mounting base (10), and the obstacle detection block (30) is elastically connected to the mounting base (10) via a return spring (40); A proximity switch (50) facing the obstacle detection block (30) is fixedly installed on the fixed plate (20). A trigger element (60) is fixedly installed on the obstacle detection block (30). The trigger element (60) is arranged opposite to the sensing end of the proximity switch (50). A photoelectric sensor (70) is arranged in the middle of the obstacle detection block (30).

2. The pole tip safety protection device for a rod-type AGV according to claim 1, characterized in that: The mounting base (10) has a telescopic groove (11) at the end away from the fork. The fixing plate (20) is fixedly installed on the inner wall of the telescopic groove (11) near the fork. The obstacle detection block (30) has a through first mounting hole (31). The first mounting hole (31) is slidably connected to a limiting member (80). One end of the limiting member (80) is engaged with the first mounting hole (31). The other end of the limiting member (80) passes through the first mounting hole (31) and is fixedly connected to the inner wall of the telescopic groove (11). The obstacle detection block (30) slides along the limiting member (80) inside the telescopic groove (11).

3. A pole tip safety protection device for a rod-type AGV according to claim 2, characterized in that: The reset spring (40) is movably sleeved on the limiting member (80), and the two ends of the reset spring (40) are fixedly connected to the obstacle detection block (30) and the telescopic groove (11) respectively.

4. A pole tip safety protection device for a rod-type AGV according to claim 1, characterized in that: The obstacle detection block (30) has a photoelectric detection through hole (32) in the middle. A photoelectric mounting base (90) is fixedly installed on the side of the obstacle detection block (30) near the fixing plate (20). The photoelectric sensor (70) is fixedly installed on the photoelectric mounting base (90), and the light propagation path of the photoelectric sensor (70) passes through the photoelectric detection through hole (32).

5. A pole tip safety protection device for a rod-type AGV according to claim 4, characterized in that: The shape of the photoelectric mounting base (90) is set to L-shape.

6. A pole tip safety protection device for a rod-type AGV according to claim 1, characterized in that: The obstacle detection block (30) has a second mounting hole (33), and the trigger element (60) is fixedly installed in the second mounting hole (33). The trigger element (60) moves toward the proximity switch (50) under the drive of external force to trigger a signal.

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