Pallet identification switch structure for AGV forklift

Abstract

The utility model discloses a pallet identification switch structure for an AGV forklift, which comprises a bottom plate assembly and a collision trigger plate assembly matched with the bottom plate assembly for use, the bottom plate assembly is mounted in the middle of an inclined frame of the forklift, and a proximity switch is mounted on the surface, close to the collision trigger plate assembly, of the bottom plate assembly. The collision trigger plate assembly comprises a goods trigger plate movably connected with the bottom plate assembly, a proximity switch trigger plate is installed on the surface, close to the proximity switch, of the goods trigger plate, and the proximity switch trigger plate is configured to trigger the proximity switch when the goods trigger plate moves and touches the proximity switch. According to the utility model, the structure is simple, the proximity switch is arranged in the middle of the inclined frame, the system design is simplified, only a single proximity switch is needed, the length of the trigger stroke is increased to improve the stability, and in addition, the width of the collision trigger plate is widened to ensure that the pallet can be reliably triggered and is prevented from being stuck even if the pallet is inclined.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to a pallet recognition switch structure for an AGV forklift. Background Art

[0002] An AGV forklift is an industrial vehicle that can automatically complete cargo handling and position movement without manual operation. It combines the functions of traditional forklifts with automation technology and is widely used in warehousing logistics, manufacturing workshops, and various environments where material handling is required. Currently, AGV forklifts usually use photoelectric sensors or pallet proximity switches at the root of the forks to determine whether the goods are picked up in place. Most AGVs use a pallet recognition switch installed at the root of each of the two forks to achieve this function. However, the pallet structure is small, resulting in a small triggering stroke. After assembly, multiple tests are required to ensure that the usage requirements are met. Moreover, due to the small structure, situations such as the pallet tilting and jamming or the pallet not triggering even when it reaches the bottom are likely to occur. For this reason, a pallet recognition switch structure for an AGV forklift is proposed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a pallet recognition switch structure for an AGV forklift to solve the problems that the small pallet stroke on the traditional double forks requires multiple assembly tests with low fault tolerance, and the pallet tilting easily leads to jamming or non-triggering.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A pallet recognition switch structure for an AGV forklift, including a bottom plate assembly and a collision trigger plate assembly used in cooperation with the bottom plate assembly. The bottom plate assembly is installed in the middle of the forklift tilt frame. A proximity switch is installed on the surface of the bottom plate assembly adjacent to the collision trigger plate assembly. The collision trigger plate assembly includes a cargo trigger plate movably connected to the bottom plate assembly. A proximity switch trigger plate is installed on the surface of the cargo trigger plate adjacent to the proximity switch, and is configured to trigger the proximity switch when the cargo trigger plate moves and the proximity switch trigger plate touches the proximity switch.

[0005] As a further scheme of the utility model: The bottom plate assembly and the cargo trigger plate are connected by a rotating shaft, and a torsion spring that contacts the bottom plate assembly and the cargo trigger plate respectively is sleeved on the outer peripheral surface of the rotating shaft.

[0006] As a further scheme of the utility model: Through holes for the rotating shaft to pass through are opened on both the bottom plate assembly and the cargo trigger plate, and a retaining ring for fixing the collision trigger plate assembly is also installed on the outer peripheral surface of the rotating shaft.

[0007] As a further scheme of the utility model: Limit screws for fixing the torsion spring are installed at both ends of the rotating shaft.

[0008] As a further solution of the present utility model: the end of the goods trigger plate close to the ground is designed to be bent at an angle of 15°, and the outer surface of the goods trigger plate is smooth without hollow design.

[0009] As a further solution of the present utility model: the position of the proximity switch is fixed by arranging a mounting plate on the bottom plate assembly.

[0010] As a further solution of the present utility model: a reinforcing rib is installed on the end face of the goods trigger plate close to the bottom plate assembly.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] In this application, by installing the proximity switch in the middle of the inclined frame, not only the system design is simplified, only a single proximity switch is needed, but also the length of the triggering stroke is increased to improve stability. In addition, by widening the width of the collision trigger plate, it is ensured that reliable triggering can be achieved even when the pallet is tilted, avoiding jamming. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the pallet identification switch of the present utility model;

[0014] Figure 2 It is a schematic diagram of the split structure of the pallet identification switch of the present utility model;

[0015] Figure 3 It is a schematic diagram of the collision trigger plate assembly of the present utility model;

[0016] In the figure: 1. Collision trigger plate assembly; 1.1 Goods trigger plate; 1.2 Reinforcing rib; 1.3 Proximity switch trigger plate; 2. Bottom plate assembly; 3. Rotating shaft; 4. Torsion spring; 5. Retaining ring; 6. Limit screw; 7. Proximity switch. Specific Embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-3, in the embodiment of the present utility model, a pallet recognition switch structure for an AGV forklift includes a bottom plate assembly 2 and a collision trigger plate assembly 1 used in cooperation with the bottom plate assembly 2. The bottom plate assembly 2 is installed in the middle of the forklift tilt frame. A proximity switch 7 is installed on the surface of the bottom plate assembly 2 adjacent to the collision trigger plate assembly 1. The bottom plate assembly 2 fixes the position of the proximity switch 7 by setting a mounting plate. A plurality of oblong holes are provided on the bottom plate assembly 2. The design of the oblong holes on the bottom plate assembly 2 enables the installation position of the proximity switch 7 to be adjusted flexibly, and it can be appropriately moved in the horizontal direction and the trigger distance of the entire pallet recognition switch structure can also be adjusted; the collision trigger plate assembly 1 includes a cargo trigger plate 1.1 movably connected to the bottom plate assembly 2. A proximity switch trigger plate 1.3 is installed on the surface of the cargo trigger plate 1.1 adjacent to the proximity switch 7, and is configured to trigger the proximity switch 7 when the cargo trigger plate 1.1 moves and the proximity switch trigger plate 1.3 touches the proximity switch 7.

[0019] Specifically, the bottom plate assembly 2 is fixedly installed in the middle of the forklift tilt frame, providing a support point for the collision trigger plate assembly 1. Secondly, a proximity switch 7 is arranged between the collision trigger plate assembly 1 and the bottom plate assembly 2. After the cargo squeezes the collision trigger plate assembly 1, the collision trigger plate assembly 1 moves closer to the bottom plate assembly 2. When the collision trigger plate assembly 1 contacts the proximity switch 7 on the bottom plate assembly 2, the proximity switch 7 can be triggered to ensure that the switch can successfully identify the cargo on the forklift forks and avoid the phenomenon of being unable to identify whether the cargo is in place.

[0020] When using the forklift forks to shovel the cargo, when the pallet or the cargo touches the cargo trigger plate 1.1, a force will be applied to the cargo trigger plate 1.1, and this force causes the cargo trigger plate 1.1 to move towards the proximity switch 7. When the proximity switch trigger plate 1.3 on the cargo trigger plate 1.1 moves to the position where it contacts the proximity switch 7, the proximity switch 7 will be triggered. After the proximity switch 7 is triggered, the system will execute the preset next instruction. The positions of the proximity switch trigger plate 1.3 and the proximity switch 7 are designed to correspond to ensure accurate triggering.

[0021] Please refer to Figures 2-3 , in an embodiment, in this embodiment, preferably, the bottom plate assembly 2 and the cargo trigger plate 1.1 are connected by a rotating shaft 3. A torsion spring 4 that contacts the bottom plate assembly 2 and the cargo trigger plate 1.1 respectively is sleeved on the outer peripheral surface of the rotating shaft 3. Further, the cargo trigger plate 1.1 is connected to the bottom plate assembly 2 through the rotating shaft 3, enabling it to rotate only along the axial direction of the rotating shaft 3; at the same time, the design of the torsion spring 4 enables the cargo trigger plate 1.1 to automatically reset after the external force disappears.

[0022] Please refer to Figures 2-3, in one embodiment, preferably, through holes for the rotation shaft 3 to pass through are provided on both the bottom plate assembly 2 and the cargo trigger plate 1.1. A retaining ring 5 for fixing the collision trigger plate assembly 1 is also installed on the outer peripheral surface of the rotation shaft 3. Limit screws 6 for fixing the torsion spring 4 are installed at both ends of the rotation shaft 3. Further, the retaining ring 5 is used to fix the position of the torsion spring 4, and the limit screws 6 are used to fix the position of the collision trigger plate assembly 1.

[0023] Please refer to Figure 3 , in one embodiment, preferably, the end of the cargo trigger plate 1.1 close to the ground is designed with a 15° bend, and the outer surface of the cargo trigger plate 1.1 is smooth without a hollow design, which can effectively prevent it from being stuck by the cargo and affecting the switch trigger; a reinforcing rib 1.2 is installed on the end face of the cargo trigger plate 1.1 close to the bottom plate assembly 2, which can effectively prevent the trigger plate from deforming due to a rapid impact.

[0024] The working principle and usage process of the present utility model: During use, the proximity switch 7 is fixed to the bottom plate assembly 2. The torsion spring 4 and the collision trigger plate assembly 1 are fixed to the bottom plate assembly 2 through the rotation shaft 3. The rotation shaft 3 is fixed to the collision trigger plate assembly 1 through the retaining ring 5, and the position of the torsion spring 4 is fixed through the limit screw 6, thus realizing the structural installation of the AGV special pallet recognition switch; by adjusting the installation position of the proximity switch 7 to adapt to proximity switches 7 with different trigger distances, and by adjusting the position of the limit screw 6 to realize the limitation of the torsion spring 4, that is, the limitation of the collision trigger plate assembly 1; when the AGV forklift takes goods, as the fork moves forward, the goods come into contact with the collision trigger plate assembly 1 and press down the collision trigger plate assembly 1. As this action progresses, the collision trigger plate assembly 1 moves to trigger the proximity switch 7 installed on the bottom plate assembly 2, thereby realizing the function of recognizing the arrival of the goods; when discharging goods, as the goods leave the collision trigger plate assembly 1, the torsion spring 4 pushes the collision trigger plate 1 to return to its original position, and the proximity switch 7 is no longer triggered.

[0025] Although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0026] Therefore, the above description is only a preferred embodiment of the present application and is not used to limit the scope of implementation of the present application; that is, all equivalent transformations made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. An identification switch structure for a pallet used in an AGV forklift, characterized in that, It includes a bottom plate assembly (2) and a collision trigger plate assembly (1) used in cooperation with the bottom plate assembly (2). The bottom plate assembly (2) is installed in the middle of the forklift tilt frame. A proximity switch (7) is installed on the surface of the bottom plate assembly (2) close to the collision trigger plate assembly (1). The collision trigger plate assembly (1) includes a cargo trigger plate (1.1) movably connected to the bottom plate assembly (2). A proximity switch trigger plate (1.3) is installed on the surface of the cargo trigger plate (1.1) close to the proximity switch (7), and is configured to trigger the proximity switch (7) when the cargo trigger plate (1.1) moves and the proximity switch trigger plate (1.3) touches the proximity switch (7).

2. The pallet recognition switch structure for an AGV forklift according to claim 1, wherein, The bottom plate assembly (2) and the cargo trigger plate (1.1) are connected by a rotating shaft (3), and a torsion spring (4) that contacts the bottom plate assembly (2) and the cargo trigger plate (1.1) respectively is sleeved on the outer peripheral surface of the rotating shaft (3).

3. The pallet recognition switch structure for the AGV forklift according to claim 2, wherein, Through holes for the rotating shaft (3) to pass through are formed in both the bottom plate assembly (2) and the cargo trigger plate (1.1), and a retaining ring (5) for fixing the collision trigger plate assembly (1) is also installed on the outer peripheral surface of the rotating shaft (3).

4. The pallet recognition switch structure for an AGV forklift according to claim 2, characterized in that, Limit screws (6) for fixing the torsion spring (4) are installed at both ends of the rotating shaft (3).

5. The pallet recognition switch structure for an AGV forklift according to claim 1, characterized in that, The end of the cargo trigger plate (1.1) close to the ground is designed to be bent at 15°, and the outer surface of the cargo trigger plate (1.1) is smooth and has no hollow design.

6. The pallet recognition switch structure for an AGV forklift according to claim 1, characterized in that The bottom plate assembly (2) fixes the position of the proximity switch (7) by setting an installation plate.

7. The pallet recognition switch structure for an AGV forklift according to claim 1, characterized in that, Reinforcing ribs (1.2) are installed on the end face of the cargo trigger plate (1.1) close to the bottom plate assembly (2).

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