Goods height and weight limiting rack

By designing a cargo height and weight limit platform, and using weighing pallets and light curtain sensors to automatically detect the weight and height of goods, the problem of intelligent detection of overweight and overheight goods in unattended warehouses has been solved, and the level of automated warehouse management has been improved.

CN223623687UActive Publication Date: 2025-12-02NAT ENERGY CHANGYUAN HANCHUAN POWER GENERATION CO LTD
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Patent Information

Application Number
CN202423274014.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-02
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

The level of automation in measuring the weight and height of goods in unmanned warehouses is low, and the calibration of overweight and overheight goods mainly relies on manual operation, which affects the level of automation in the warehouse.

Method used

Design a cargo height and weight limiting platform, including a weighing pallet, a light curtain sensor, and a stand. The weighing pallet measures the weight of the cargo, the light curtain sensor detects the height of the cargo, and the platform is combined with a controller and an alarm to achieve automatic judgment and alarm.

Benefits of technology

It enables automated detection of cargo weight and height, improves the intelligence level of unmanned warehouses, simplifies the identification and handling process of overweight and overheight goods, and reduces equipment costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a goods height and weight limit rack, which comprises a weighing supporting plate, a controller, a light curtain sensor and two vertical frames, the weighing supporting plate is horizontally arranged along the left-right direction, the two vertical frames are respectively arranged on the left side and the right side of the weighing supporting plate, the light curtain sensor comprises a light curtain generator and a light curtain receiver, and the light curtain generator is connected with the controller. The light curtain generator is horizontally arranged on one of the vertical frames in the front-back direction, the light curtain receiver is horizontally arranged on the other vertical frame in the front-back direction, the light curtain receiver is used for receiving light curtain signals sent by the light curtain generator, and the weighing supporting plate, the light curtain generator and the light curtain receiver are all electrically connected with the controller. The tray carrying goods is used for being placed in the middle of the upper end of the weighing supporting plate, in this way, the tray carrying the goods can be conveyed to the upper end of the weighing supporting plate through a forklift, at the moment, the weighing supporting plate can weigh the goods to judge whether the goods are overweight or not, and if the upper end of the goods blocks the light path of the light curtain sensor, it can be considered that the goods are overweight.
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Description

Technical Field

[0001] This utility model belongs to the field of material storage, and in particular relates to a cargo height and weight limit rack. Background Technology

[0002] For unmanned warehouses, the weight and height of heavy items need to be measured before they are put into the warehouse so that the system can decide whether to place the goods on shelves or pallets. Currently, overweight and overheight goods are usually placed directly on pallets on the ground in the warehouse. However, the determination of overweight and overheight goods is mostly done by staff in advance by measuring and operating the system, which makes the overall intelligence level of the unmanned warehouse still relatively low. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a cargo height and weight limit platform with a simple structure that can conveniently mark the height and weight of goods to determine whether the goods are overweight or oversized.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A cargo height and weight limiting platform includes a weighing pallet, a controller, a light curtain sensor, and two uprights. The weighing pallet is horizontally arranged in the left-right direction, and the two uprights are respectively arranged on the left and right sides of the weighing pallet. The light curtain sensor includes a light curtain generator and a light curtain receiver. The light curtain generator is horizontally arranged in the front-back direction on one of the uprights, and the light curtain receiver is horizontally arranged in the front-back direction on the other upright. The light curtain receiver is used to receive the light curtain signal emitted by the light curtain generator. The weighing pallet, the light curtain generator, and the light curtain receiver are all electrically connected to the controller. A pallet holding cargo is placed in the middle of the upper part of the weighing pallet.

[0005] The beneficial effect of the above technical solution is that a forklift can transport a pallet containing goods to the top of the weighing pallet. At this time, the weighing pallet will weigh the goods to determine whether the goods are overweight. If the top of the goods blocks the light path of the light curtain sensor, the goods can be considered to be overweight.

[0006] The weighing pallet in the above technical solution includes a base plate and multiple weighing feet. The base plate is horizontally arranged in the left-right direction, and multiple weighing feet are spaced apart at the lower end of the base plate. Two uprights are respectively arranged on both sides of the base plate. The multiple weighing feet are electrically connected to the controller. The pallet holding the goods is placed in the middle of the upper part of the base plate.

[0007] The advantages of the above technical solution are: its structure is simple, and multiple weighbridge feet are used in conjunction with the base plate to weigh the goods.

[0008] The base plate described in the above technical solution is a square hollow plate, and a weighing scale foot is provided at each corner of the lower end of the base plate.

[0009] The advantages of the above technical solution are that it has a simple structure and good aesthetics.

[0010] In the above technical solution, guide strips are provided on both the left and right sides of the upper end of the base plate along the front-back direction, and the upper ends of the two guide strips are bent to be far apart from each other. The two guide strips are used to guide the pallet to the center in the left-right direction at the upper end of the base plate.

[0011] The beneficial effect of the above technical solution is that when the pallet is placed on the upper part of the bottom plate, it can be guided by the two guide strips to be centered in the left-right direction.

[0012] In the above technical solution, two guide bodies are arranged at intervals along the left and right directions on both the front and rear sides of the base plate, and the upper end of each guide body is bent away from the middle of the base plate. The four guide bodies are used to guide the tray to the center in the front and rear direction on the upper end of the base plate.

[0013] The beneficial effect of the above technical solution is that when the tray is placed on the upper part of the bottom plate, it can be guided by the four guide bodies to be centered in the front-to-back direction.

[0014] The upright frame described in the above technical solution is a height-adjustable frame, and the lower end of the upright frame is provided with leveling anchor bolts.

[0015] The beneficial effects of the above technical solution are that the height of the light curtain generator and the light curtain receiver can be adjusted separately as needed, and the support frame can be leveled while its height is being adjusted.

[0016] In the above technical solution, both the front and rear ends of the support frame are vertically equipped with length adjustment rods, and the two ends of the light curtain generator and the light curtain receiver are respectively connected to the upper ends of the two corresponding length adjustment rods.

[0017] The advantages of the above technical solution are that its structure is simple, which makes it easier to adjust the height of the entire frame.

[0018] The above technical solution also includes an alarm, which is electrically connected to the controller.

[0019] The beneficial effect of the above technical solution is that it enables the alarm device to issue an alarm signal when the goods are overweight or overheight.

[0020] The above technical solution describes the provision of multiple weighing pallets, which are arranged sequentially in the left-right direction between two uprights.

[0021] The beneficial effect of the above technical solution is that it allows multiple weighing pallets to share a single light curtain sensor, which reduces the cost of the equipment.

[0022] The weighing pallets described in the above technical solution are provided in the form of 2-5 pieces.

[0023] The beneficial effect of the above technical solution is that its structure is simple. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the cargo height and weight limiting platform described in an embodiment of the present utility model;

[0025] Figure 2 This is a top view of the cargo height and weight limiting platform described in this embodiment of the utility model;

[0026] Figure 3 This is a top view of the weighing pallet described in this embodiment of the utility model;

[0027] Figure 4 This is a front view of the weighing pallet described in this embodiment of the present invention;

[0028] Figure 5 This is a left view of the weighing pallet described in this embodiment of the utility model;

[0029] Figure 6 This is an elevation view of the weighing pallet described in this embodiment of the utility model;

[0030] Figure 7 This is a side view of the frame and light curtain generator assembled in the embodiment of this utility model;

[0031] Figure 8 This is a schematic diagram of the electrical connections of the controller described in an embodiment of this utility model;

[0032] Figure 9 This is a structural diagram of a weighing pallet having multiple components as described in this embodiment of the present invention.

[0033] In the diagram: 1. Weighing pallet; 11. Base plate; 12. Weighing scale foot; 13. Guide bar; 14. Guide body; 2. Controller; 3. Light curtain sensor; 31. Light curtain generator; 32. Light curtain receiver; 4. Stand; 41. Leveling bolt; 42. Length adjusting rod; 421. Rod sleeve; 422. Rod body; 423. Locking bolt; 43. Base; 44. Pull rod; 5. Alarm; 6. Pallet. Detailed Implementation

[0034] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will be more clearly described in light of the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0035] like Figure 1 As shown, this embodiment provides a cargo height and weight limit platform, including a weighing pallet 1, a controller 2, a light curtain sensor 3, and two uprights 4. The weighing pallet 1 is horizontally arranged in the left-right direction, and the two uprights 4 are respectively arranged on the left and right sides of the weighing pallet 1. The light curtain sensor 3 includes a light curtain generator 31 and a light curtain receiver 32. The light curtain generator 31 is horizontally arranged in the front-back direction on one of the uprights 4, and the light curtain receiver 32 is horizontally arranged in the front-back direction on the other upright. 4. The light curtain receiver 32 is used to receive the light curtain signal emitted by the light curtain generator 31. The weighing pallet 1, the light curtain generator 31, and the light curtain receiver 32 are all electrically connected to the controller 2. The pallet 6, on which the goods are placed, is placed in the middle of the upper end of the weighing pallet 1. In this way, a forklift can transport the pallet containing the goods to the upper end of the weighing pallet. At this time, the weighing pallet will weigh the goods to determine whether the goods are overweight. If the upper end of the goods blocks the light path of the light curtain sensor, the goods can be considered to be overweight. In this embodiment, the controller can be an ARM series microcontroller. In this embodiment, the controller can be electrically connected to the host computer of the unattended warehouse.

[0036] in, Figure 1 The dashed line in the figure represents the light curtain between the light curtain generator 31 and the light curtain receiver 32. The light curtain generator 31 and the light curtain receiver 32 need to be at the same height, with their two ends aligned, and aligned with or protruding from the two ends of the weighing tray.

[0037] like Figures 3-6As shown, the weighing pallet 1 in the above technical solution includes a base plate 11 and multiple weighing feet 12. The base plate 11 is horizontally arranged in the left-right direction, and multiple weighing feet 12 are spaced apart at the lower end of the base plate 11. Two uprights 4 are respectively arranged on both sides of the base plate 11. The multiple weighing feet 12 are all electrically connected to the controller 2. A pallet 6 holding goods is placed in the middle of the upper end of the base plate 11. Its structure is simple, and the multiple weighing feet cooperate with the base plate to weigh the goods. The structure of the weighing feet 12 is similar to that of anchor bolts, but it integrates a weighing sensor, which is existing technology and will not be described in detail here.

[0038] The base plate 11 in the above technical solution is a square hollow plate, and a weighing scale foot 12 is provided at each corner of the lower end of the base plate 11. Its structure is simple and aesthetically pleasing.

[0039] like Figures 2-6 As shown, in the above technical solution, guide strips 13 are provided on both the left and right sides of the upper end of the base plate 11 along the front-back direction, and the upper ends of the two guide strips 13 are bent to be far apart from each other. The two guide strips 13 are used to guide the tray 6 to be centered in the left-right direction on the upper end of the base plate 11, so that when the tray is placed on the upper end of the base plate, it can be centered in the left-right direction by the two guide strips. Two guide bodies 14 are provided at intervals along the left-right direction on both the front and back sides of the base plate 11, and the upper end of each guide body 14 is bent to be away from the middle of the base plate 11. The four guide bodies 14 are used to guide the tray 6 to be centered in the front-back direction on the upper end of the base plate 11, so that when the tray is placed on the upper end of the base plate, it can be centered in the front-back direction by the four guide bodies.

[0040] like Figure 2 As shown, in this embodiment, the two guide strips and four guide bodies enclose a square area at the upper end of the base plate (this area matches the size of the pallet), which allows the pallet to be positioned on the base plate, facilitating the subsequent unmanned forklift to accurately dock with the pallet to pick up and deliver the pallet and goods into the warehouse.

[0041] like Figure 1 and Figure 7 As shown, the support frame 4 in the above technical solution is a height-adjustable frame, so that the heights of the light curtain generator 31 and the light curtain receiver 32 can be adjusted as needed.

[0042] The above technical solution describes that the lower end of the upright frame 4 is provided with leveling anchor bolts 41, so that the upright frame can be leveled while its height is adjusted.

[0043] In the above technical solution, both the front and rear ends of the support frame 4 are vertically equipped with length adjustment rods 42. The two ends of the light curtain generator 31 and the light curtain receiver 32 are respectively connected to the upper ends of the corresponding two length adjustment rods 42. The structure is simple, which makes the height adjustment of the entire support frame more convenient.

[0044] like Figure 8 As shown, the above technical solution also includes an alarm 5, which is electrically connected to the controller 2. This allows the alarm 5 to issue an alarm signal when the goods are overweight or overheight. The alarm 5 can be an audible and visual alarm. In this embodiment, when the controller controls the alarm to issue an alarm signal, the alarm will automatically stop after 5-10 seconds.

[0045] like Figure 9 As shown, the above technical solution includes multiple weighing pallets 1, which are arranged sequentially in the left-right direction between the two uprights 4. This allows multiple weighing pallets to share a single light curtain sensor, thus reducing equipment cost. In this case, multiple weighing pallets 1 are electrically connected to the controller. Preferably, there are 2-5 weighing pallets 1 (which can be 2, 3, 4 or 5), resulting in a simple structure.

[0046] In this embodiment, the controller can be installed in the adjacent control cabinet, while the alarm can be installed on any stand.

[0047] like Figure 7 As shown, in this embodiment, the support frame 4 includes a base 43, and the lower end of the base 43 is provided with a plurality of leveling anchor bolts (preferably, one leveling anchor bolt can be provided at each corner of the lower end of the base 43). The length adjusting rod includes a rod sleeve 421, a rod body 422, and a locking bolt 423. The rod sleeve is vertically mounted on the base, and the rod body 422 is inserted into the rod sleeve 421 through the upper end of the rod sleeve 421. A screw hole is provided on the upper side wall of the rod sleeve 421, and the locking bolt is threaded into the screw hole. Bolt 423 is used to tighten the locking bolt to lock the rod body onto the rod sleeve, or to loosen the locking bolt to allow the rod body to be adjusted in height relative to the rod sleeve. The upper end of the rod body forms the upper end of an adjustable rod. The upright frame also includes multiple tie rods 44, which are arranged between two rod sleeves, and each tie rod is connected to both ends of the two rod sleeves. In this embodiment, the base can be a square iron plate, which gives it a certain weight, thereby lowering the center of gravity of the upright frame and making it more stable. Preferably, three tie rods can be provided, two of which can be arranged in an "X" shape, and the remaining tie rod is arranged horizontally along the front-back direction.

[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A cargo height and weight limiting platform, characterized in that, The weighing pallet (1), controller (2), light curtain sensor (3), and two uprights (4) are included. The weighing pallet (1) is horizontally arranged in the left-right direction, and the two uprights (4) are respectively arranged on the left and right sides of the weighing pallet (1). The light curtain sensor (3) includes a light curtain generator (31) and a light curtain receiver (32). The light curtain generator (31) is horizontally arranged in the front-back direction on one of the uprights (4), and the light curtain receiver (32) is horizontally arranged in the front-back direction on the other upright (4). The light curtain receiver (32) is used to receive the light curtain signal emitted by the light curtain generator (31). The weighing pallet (1), the light curtain generator (31), and the light curtain receiver (32) are all electrically connected to the controller (2). A pallet (6) holding the goods is placed in the middle of the upper end of the weighing pallet (1).

2. The cargo height and weight limit platform according to claim 1, characterized in that, The weighing pallet (1) includes a base plate (11) and multiple weighing feet (12). The base plate (11) is horizontally arranged in the left-right direction. Multiple weighing feet (12) are spaced apart at the lower end of the base plate (11). Two uprights (4) are respectively arranged on both sides of the base plate (11). Multiple weighing feet (12) are electrically connected to the controller (2). A pallet (6) holding the goods is placed in the middle of the upper end of the base plate (11).

3. The cargo height and weight limit platform according to claim 2, characterized in that, The base plate (11) is a square perforated plate, and a weighing scale foot (12) is provided at each corner of the lower end of the base plate (11).

4. The cargo height and weight limiting platform according to claim 3, characterized in that, Guide strips (13) are provided on both the left and right sides of the upper end of the base plate (11) along the front-back direction, and the upper ends of the two guide strips (13) are bent to be far apart from each other. The two guide strips (13) are used to guide the tray (6) to the center in the left-right direction at the upper end of the base plate (11).

5. The cargo height and weight limit platform according to claim 3, characterized in that, The base plate (11) has two guide bodies (14) spaced apart on both the front and rear sides in the left and right direction. The upper end of each guide body (14) is bent away from the middle of the base plate (11). The four guide bodies (14) are used to guide the tray (6) to the center in the front and rear direction at the upper end of the base plate (11).

6. The cargo height and weight limiting platform according to claim 1, characterized in that, The upright frame (4) is a height-adjustable frame, and the lower end of the upright frame (4) is provided with leveling anchor bolts (41).

7. The cargo height and weight limiting platform according to claim 5, characterized in that, The front and rear ends of the support frame (4) are vertically equipped with length adjustment rods (42), and the two ends of the light curtain generator (31) and the light curtain receiver (32) are respectively connected to the upper ends of the two corresponding length adjustment rods (42).

8. The cargo height and weight limit platform according to claim 1, characterized in that, It also includes an alarm (5) which is electrically connected to the controller (2).

9. The cargo height and weight limiting platform according to any one of claims 1-8, characterized in that, Multiple weighing pallets (1) are provided, and the multiple weighing pallets (1) are arranged sequentially in the left-right direction between the two uprights (4).

10. The cargo height and weight limiting platform according to claim 9, characterized in that, The weighing pallet (1) is provided with 2-5 pieces.