An all-in-one in-place detection device

Abstract

The utility model belongs to the technical field of fork truck, specifically discloses a whole type in -place detection device, including the mounting seat of installation on the cargo fork frame, the top end of mounting seat is connected with the pressing plate, the pressing plate is located above the middle position of two cargo forks and is arranged obliquely, the bottom of mounting seat is installed with proximity switch, the induction plate is installed on the pressing plate, when the pressing plate is extruded by external force, the induction plate on the pressing plate approaches the proximity switch and triggers the proximity switch, the utility model discloses in -place detection device is whole type structure, it is installed on the cargo fork frame, and is centrally located between two cargo forks, can give consideration to the in -place detection of material cage and tray, as long as the auxiliary tool of loading goods extrudes this device and triggers the proximity switch, can judge that the auxiliary tool has arrived in place.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and in particular to an integrated positioning detection device for detecting the positioning of goods on the forks. Background Technology

[0002] Forklifts are industrial handling vehicles that use forks in conjunction with auxiliary tools such as pallets and cages to load, unload, stack, and transport goods over short distances. They are now widely used in warehouses, docks, and other similar locations.

[0003] Pallets are primarily used for the efficient mechanized handling, stacking, and shelving storage of bulk goods, and have a strong load-bearing capacity. During use, forks are inserted into the fork holes in the pallet for handling operations. To ensure balance during handling, the force exerted by the pallet on both forks is equal. Tobacco bins, on the other hand, are used for the classified storage and turnover of loose, irregular goods. They are commonly used in production line material distribution or warehouse classification management and feature a foldable design to reduce space occupation.

[0004] To improve the safety of AGVs (Automated Guided Vehicles), current pallet arrival detection primarily employs two detection mechanisms located at the base of the left and right forks. Each mechanism is equipped with a proximity switch, the signal terminals of which are connected to the forklift's controller. When both proximity switches are triggered simultaneously, a signal is transmitted to the controller, indicating that the pallet has been moved to the correct position. The controller then activates the forklift hydraulic circuit, allowing the forks to lift. This detection mechanism is advantageous when pallets are stacked with goods. However, for frame-shaped structures like material cages, the high base makes it difficult for the cage to contact and trigger the proximity switches at the base of the forks. Furthermore, the bottom of the material cage where it contacts the forks has angle iron on one side and no angle iron on the other. When the forks lift the material, the side with angle iron may trigger the proximity switch, while the side without angle iron may not, leading to inaccurate detection.

[0005] Therefore, existing testing agencies are not suitable for detecting the arrival of material cages. As a result, a new testing agency needs to be designed that can detect the arrival of both material cages and pallets. Utility Model Content

[0006] Based on the above-mentioned technical problems, this utility model proposes an integrated positioning detection device for detecting the positioning of goods on forks, which can take into account the positioning detection of both the material cage and the pallet.

[0007] The specific technical solution of this utility model is as follows: An integrated positioning detection device includes a mounting base installed on a fork carriage. A pressure plate is rotatably connected to the top of the mounting base. The pressure plate is inclined and located at the middle position above two forks. A proximity switch is installed at the bottom of the mounting base. A sensing plate is installed on the pressure plate. When an external force squeezes the pressure plate, the sensing plate on the pressure plate moves closer to the proximity switch and triggers the proximity switch.

[0008] In a further embodiment, the top of the mounting base is rotatably connected to the pressure plate via a connector.

[0009] In a further embodiment, the connector includes a mounting base connecting plate and a pressure plate connecting plate, which are respectively fixed on the opposite sides of the mounting base and the pressure plate; the mounting base connecting plate and the pressure plate connecting plate are connected by a rotating shaft, so that the pressure plate rotates around the rotating shaft.

[0010] Preferably, a torsion spring is fitted on the rotating shaft for resetting the pressure plate.

[0011] In a further embodiment, an adjustment assembly for adjusting the angle between the mounting base and the pressure plate is connected between the mounting base and the pressure plate. The adjustment assembly includes an adjusting bolt and a locking nut.

[0012] In a further embodiment, a proximity switch is mounted on the bottom of the mounting base via a switch mounting plate, and the sensing surface of the proximity switch is arranged parallel to the surface of the sensing plate.

[0013] In a further embodiment, the included angle between the mounting base and the pressure plate is 12-18°.

[0014] In a further embodiment, the pressure plate is provided with an operation window and an observation window, and the mounting base is fixedly connected to the forklift fork carriage by mounting bolts. The operation window is positioned opposite to the mounting bolts and is used to operate the mounting bolts.

[0015] This utility model has the following beneficial effects: (1) The positioning detection device of this utility model is an integral structure, which is installed on the fork carriage and is located in the middle of the two forks. As long as the auxiliary tool for loading the goods squeezes the device and triggers the proximity switch, it can be determined that the auxiliary tool has reached the position. Moreover, compared with the split mechanism, it reduces one proximity switch, which is lower in cost. At the same time, the structure is simple and easier to use and maintain.

[0016] (2) The positioning detection device of this utility model has a wide range of applications. It is not only suitable for pallet handling, but also for material cage handling, which can take into account different handling scenarios. (3) In this utility model, the sensing plate and the sensing surface of the proximity switch are arranged in parallel, which is beneficial to adjust the gap between the sensing plate and the proximity switch, making the proximity switch more sensitive, more stable in triggering, and easier to debug. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Rear view; Figure 3 for Figure 1 Side view; Figure 4 This is a schematic diagram of the installation of this utility model.

[0018] In the diagram: 1. Pressure plate, 11. Operation window, 12. Observation window, 2. Mounting base, 3. Sensing plate, 4. Switch mounting plate, 5. Proximity switch, 6. Connector, 61. Pressure plate connecting plate, 62. Mounting base connecting plate, 63. Rotating shaft, 7. Mounting bolt, 8. Adjustment assembly. Detection device 10, forks 20, fork carriage 30. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] refer to Figure 1-3 This embodiment provides an integrated positioning detection device, including a mounting base 2 installed on a fork carriage. A pressure plate 1 is rotatably connected to the top of the mounting base 2. The pressure plate 1 is inclined and located at the middle position above the two forks, with its bottom end extending away from the fork carriage to form an angle with the mounting base 2. There is no hard contact between the bottom end of the pressure plate 1 and the forks 20 to avoid generating resistance that would affect the sensitivity of the proximity switch. A proximity switch 5 is installed at the bottom of the mounting base 2, and a sensing plate 3 is installed on the pressure plate 1. When an external force presses the pressure plate 1, the sensing plate 3 on the pressure plate moves closer to the proximity switch 5, triggering the proximity switch.

[0021] The forklift includes two parallel forks 20, which are mounted on the forklift via a fork carriage 30. The detection device 10 of this invention is mounted on the fork carriage and centered between the two forks (e.g., ...). Figure 4As shown in the diagram, the mounting base 2 is fixedly mounted on the fork carriage. The top of the pressure plate 1 is rotatably connected to the mounting base 2, and the bottom of the pressure plate is located on the fork 20. The pressure plate is inclined. When the fork 20 picks up the pallet or cage containing the load, the fork continues to advance after the end of the auxiliary tool contacts the pressure plate 1. Since the mounting base 2 is fixed on the fork carriage, the bottom of the pressure plate 1 is squeezed and rotates around the rotating shaft 6, causing the bottom of the pressure plate 1 to move towards the mounting base 2. This causes the sensing plate 3 to move towards the proximity switch 5 and face the sensing surface of the proximity switch 5. When the proximity switch 3 is within the operating distance of the proximity switch, the proximity switch 5 is triggered. The signal terminal of the proximity switch is connected to the existing forklift controller on the forklift and sends a signal to the forklift controller, which then stops the fork advance and causes the forks to lift the pallet or cage for transport.

[0022] like Figure 1 , 3 As shown, the top of the mounting base 2 is rotatably connected to the pressure plate 1 via the connector 6.

[0023] Specifically, the connector 6 includes a mounting base connecting plate 62 and a pressure plate connecting plate 61, which are respectively fixed on the opposite sides of the mounting base 2 and the pressure plate 1; the mounting base connecting plate 62 and the pressure plate connecting plate 61 are connected by a rotating shaft 63, so that the pressure plate 1 rotates around the rotating shaft 63.

[0024] To limit the rotation angle of the pressure plate 1, a torsion spring is fitted on the rotating shaft 63 for resetting the pressure plate.

[0025] In another embodiment, an adjusting component 8 for adjusting the angle between the mounting base 2 and the pressure plate 1 is further connected between the mounting base 2 and the pressure plate 1. In this embodiment, the adjusting component 8 includes an adjusting bolt and a locking nut. That is, the adjusting bolt connects the mounting base 2 and the pressure plate 1, and is locked at the end with a locking nut, thereby adjusting and fixing the angle between the mounting base 2 and the pressure plate 1.

[0026] In this embodiment, the included angle α between the mounting base 2 and the pressure plate 1 can be set to 12-18°, such as... Figure 3 As shown. This angle is the optimal angle set according to the actual application scenario. The purpose is to ensure that when the cage or pallet contacts the pressure plate of the arrival detection device, the forklift operation needs to continue. That is, there is a gap in the compression of the pressure plate, so that the proximity switch is not triggered immediately upon contact, thus improving the safety of lifting and handling goods. At the same time, it also avoids the proximity switch becoming insensitive due to an excessively long stroke.

[0027] like Figure 1As shown, a proximity switch 5 is mounted on the bottom of the mounting base 2 via a switch mounting plate 4. The sensing surface of the proximity switch 5 is parallel to the surface of the sensing plate 3. The parallelism between the sensing surface of the proximity switch 5 and the surface of the sensing plate 3 facilitates better control of the gap between the sensing plate 3 and the proximity switch 5, ensuring sensitive sensing of the proximity switch 5. Compared to the non-parallel mounting method of the sensing plate and proximity switch in most AGV pallet arrival detection mechanisms on the market, the detection device of this application has the advantages of sensitive sensing, stable triggering, and convenient debugging.

[0028] like Figure 2 As shown, the pressure plate 1 has an operation window 11 and an observation window 12. The mounting base 2 is fixedly connected to the forklift fork carriage by mounting bolts 7. The operation window 11 is positioned opposite to the mounting bolts 7 to facilitate tightening the mounting bolts 7 with an Allen wrench, meaning the mounting base 2 can be installed from the outside of the pressure plate. The observation window 12 is used to observe the gap between the sensing plate 3 and the proximity switch 5, as well as the angle between the pressure plate 1 and the mounting base 2.

[0029] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. 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.

[0030] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. An integrated positioning detection device, characterized in that: The device includes a mounting base (2) installed on the fork carriage. A pressure plate (1) is rotatably connected to the top of the mounting base (2). The pressure plate (1) is tilted and located in the middle position above the two forks. A proximity switch (5) is installed at the bottom of the mounting base (2). A sensing plate (3) is installed on the pressure plate (1). When an external force squeezes the pressure plate (1), the sensing plate (3) on the pressure plate moves closer to the proximity switch (5) and triggers the proximity switch.

2. The integrated positioning detection device according to claim 1, characterized in that: The top of the mounting base (2) is rotatably connected to the pressure plate (1) via a connector (6).

3. The integrated positioning detection device according to claim 2, characterized in that: The connector (6) includes a mounting base connecting plate (62) and a pressure plate connecting plate (61) respectively fixed on the opposite sides of the mounting base (2) and the pressure plate (1); the mounting base connecting plate (62) and the pressure plate connecting plate (61) are connected by a rotating shaft (63) so that the pressure plate (1) rotates around the rotating shaft (63).

4. The integrated positioning detection device according to claim 3, characterized in that: A torsion spring is fitted on the rotating shaft (63) for resetting the pressure plate.

5. An integrated positioning detection device according to any one of claims 1-4, characterized in that: An adjustment component (8) for adjusting the angle between the mounting base (2) and the pressure plate (1) is also connected between the mounting base (2) and the pressure plate (1).

6. The integrated positioning detection device according to claim 5, characterized in that: The adjusting assembly (8) includes an adjusting bolt and a locking nut.

7. The integrated positioning detection device according to claim 1, characterized in that: The bottom of the mounting base (2) is fitted with a proximity switch (5) via a switch mounting plate (4), and the sensing surface of the proximity switch (5) is set parallel to the surface of the sensing plate (3).

8. The integrated positioning detection device according to claim 1, characterized in that: The included angle between the mounting base (2) and the pressure plate (1) is 12-18°.

9. The integrated positioning detection device according to claim 1, characterized in that: The pressure plate (1) is provided with an operation window (11) and an observation window (12). The mounting base (2) is fixedly connected to the forklift fork carriage by mounting bolts (7). The operation window (11) is positioned opposite to the mounting bolts (7) and is used to operate the mounting bolts (7).

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