Cargo dimension detection apparatus and method

Abstract

The present application relates to a kind of goods size detection equipment and method, particularly related to the technical field of goods size detection;Including support frame, support frame is provided with conveying mechanism for batch conveying logistics package, conveying mechanism is provided with weight detection mechanism and size detection mechanism on one side;The present application can carry out size detection to package, and the size after detection is input into package express single, it is printed out and pasted on package, convenient for subsequent package transport;Second, the present application can also weigh package, and simply classify after weighing package, distinguish between large piece logistics and ordinary logistics, guarantee the convenience of logistics package transport.

Description

Technical Field

[0001] This invention relates to the technical field of cargo size inspection, and particularly to a cargo size inspection device and method. Background Technology

[0002] Logistics is the entire process of planning, implementing, and managing the movement of raw materials, semi-finished products, finished products, and related information from the place of origin to the place of consumption in order to meet customer needs at the lowest cost through transportation, storage, and distribution. Logistics consists of transportation, service, distribution, warehousing, packaging, handling and loading / unloading, distribution processing, and related logistics information.

[0003] Products in logistics transportation are packaged into parcels for transport. However, parcels need to be strictly protected for safety and stability during transportation, so they often need to be inspected. Existing logistics parcel inspection usually involves identifying the type, hazard level, size, and weight of the transported parcels.

[0004] Furthermore, logistics parcels typically require weight and size checks during transportation, and this information must be entered into a system for comparison and classification to ensure orderly transportation and loading. Therefore, equipment specifically designed for logistics parcel inspection has emerged.

[0005] For example, Chinese patent CN215296160U discloses a cargo size detection device for logistics operations. It includes a feeding track with a rectangular detection frame mounted on it. Photoelectric sensors are mounted on both sides of the detection frame, with the height of the photoelectric sensors matching the maximum height limit of the cargo. A grating sensor is positioned next to the photoelectric sensors to detect the cargo height. A width detection plate is mounted on the feeding track, positioned above the track on both sides. A force sensor is located at the lower end of the width detection plate to detect the lateral force received by the width detection plate, thereby detecting the cargo width. This device automatically completes size detection without manual inspection, improving the safety of cargo entry into the warehouse. A buffer return spring applies a return force to the width detection plate and assists in cargo centering, further enhancing safety.

[0006] However, the aforementioned cargo size detection device for logistics operations still has some shortcomings in actual use: 1. In the above-mentioned prior art, the width and height of the logistics package are detected by the grating sensor, but the length of the logistics package cannot be detected. Therefore, the size detection of the entire logistics package is incomplete. In addition, when the logistics package is detected, the vibration of the logistics package during transportation will cause the grating to shake, resulting in a certain large error in the size detection of the logistics package.

[0007] 2. In the existing technology, when inspecting a package, the existing technology cannot detect the weight of the package.

[0008] Therefore, based on the above-stated viewpoints, there is still room for improvement in existing cargo size detection devices. Summary of the Invention

[0009] To address the aforementioned problems, this invention provides a cargo size detection device and method.

[0010] In a first aspect, a cargo size detection device includes a support frame, on which a conveying mechanism for batch conveying logistics packages is provided, and a weight detection mechanism and a size detection mechanism are provided on one side of the conveying mechanism. The weight detection mechanism includes a weighing device installed on the ground. A fixed plate is installed on the upper end of the weighing device. Support springs are symmetrically fixed on the upper end of the fixed plate. A detection plate is hinged to the end of the support spring away from the fixed plate. The detection plate and the conveying mechanism are horizontally distributed. A first lifting cylinder and a second lifting cylinder are installed on the upper end of the fixed plate. The output ends of the first lifting cylinder and the second lifting cylinder both abut upward against the detection plate. A detection unit is provided between the fixed plate and the detection plate.

[0011] Preferably, a fixing block is fixedly connected to the upper end of the support spring, and a locking post is movably engaged on the fixing block. The locking post is fixedly installed at the bottom of the detection plate, and the bottom of the support spring is fixed on the fixing plate.

[0012] Preferably, the detection unit includes a bidirectional threaded rod symmetrically rotated and mounted on the upper end of a fixed plate, and the bidirectional threaded rod is vertically distributed. Sensing plates are symmetrically mounted on the bidirectional threaded rod by means of threaded connection. A fixed post is fixedly connected to the middle of the lower end of the detection plate. A contact plate is installed on the end of the fixed post away from the detection plate, and both ends of the contact plate extend toward one end of the sensing plate on the bidirectional threaded rod. The two ends of the contact plate are respectively located between two sets of sensing plates on the same side of the bidirectional threaded rod. Contact plates are fixedly mounted on the sensing plates. A first wire is connected to the contact plate near the fixed plate, and the end of the first wire away from the contact plate is connected to the second lifting cylinder.

[0013] Preferably, the bottom of the bidirectional threaded rod is also provided with an adjustment component for controlling the movement of the sensing plate. The adjustment component includes a synchronous gear fixedly installed at the bottom of the bidirectional threaded rod, and adjustment racks are symmetrically slidably installed on both sides of the fixed plate. The adjustment racks mesh with the synchronous gears, and weighing scale lines are engraved on the adjustment racks. An adjustment electric push rod is fixedly installed at the upper end of the fixed plate. The output end of the adjustment electric push rod extends towards the adjustment rack and is fixedly connected to the adjustment rack. An electric control unit is provided on the adjustment electric push rod.

[0014] Preferably, the conveying mechanism includes a support frame on the ground, conveying rollers are symmetrically and rotatably arranged on both sides of the support frame along its length, a conveyor belt is sleeved between the two conveying rollers, and a conveying motor is fixed on the support frame by a motor base, the output end of the conveying motor rotatably passing through the support frame and connected to the conveying rollers.

[0015] Preferably, the dimension detection mechanism includes a horizontal plate fixedly installed on the upper end of the support frame, a U-shaped frame fixedly installed on the horizontal plate, width detection columns symmetrically sliding through the vertical end of the U-shaped frame on both sides along the length direction of the U-shaped frame, a width detection plate fixedly installed on one side opposite to the two width detection columns, and symmetrically distributed width detection marks engraved on the horizontal plate, with the width detection plate corresponding to the width detection marks; A height detection column is installed that slides through the C-shaped frame along its height direction. A height detection plate is installed at the bottom of the height detection column. The vertical end of one side of the C-shaped frame is engraved with height detection lines that are evenly spaced from top to bottom.

[0016] Preferably, a triggering unit is also provided on the horizontal plate. The triggering unit includes a first plate that is hinged to the horizontal plate by a torsion spring. A square groove is opened on the horizontal plate for the first plate to rotate. A first trigger plate is fixedly installed on the inner side of the first plate. A second trigger plate is installed on the inner side of the square groove. A wire is fixedly connected to the second trigger plate. The end of the wire away from the second trigger plate is connected in series with the width detection column and the height detection column, respectively. A power supply is provided on the wire.

[0017] Preferably, a length detection unit is provided on the first plate. The length detection unit includes a connecting shaft rotatably mounted on the first plate, a roller is provided in the middle of the connecting shaft, and a detection gear located on the side end of the roller is also provided on the connecting shaft. A detection rack corresponding to the detection gear is slidably installed on the inner side of the horizontal plate.

[0018] Secondly, the present invention also provides a method for detecting the size of goods, as shown below: S1. Parcel Transportation: First, parcels from all over the world are collected by couriers and transported by large trucks to the local logistics distribution centers where they need to be delivered. At this time, unloading of the parcels is required. S2. Package weighing and inspection: After the logistics package arrives at the local logistics distribution center, the logistics package is weighed by a weight inspection agency. S3. Package size inspection: After the logistics package is weighed, the size of the logistics package is inspected by a size inspection agency; S4. Package Processing: After the size and weight of the logistics package have been checked, it is transferred to the logistics package waybill, which is then affixed to the logistics package, and the logistics package is sent to its destination.

[0019] In summary, this application includes at least one of the following beneficial technical effects: First, this invention can detect the size and weight of logistics packages before transportation, ensuring that the packages are constantly monitored during transportation to prevent changes in weight or size, thereby greatly improving the safety of logistics package transportation and preventing short-weighting. Secondly, it can prevent logistics packages from being subjected to rough transportation, which could lead to severe deformation of the outer shell.

[0020] Second, this invention can perform simple classification of logistics packages during the weighing process, distinguish the collected logistics packages, and specialize the transportation of logistics packages that are too heavy to be transported by ordinary means, while some ordinary logistics packages are transported directly, thereby improving the overall efficiency of logistics package delivery.

[0021] Third, this invention can detect the length, width and height of logistics packages by measurement. It can not only detect accurately, but also avoid the vibration generated by the conveyor belt, which affects the size detection of logistics packages, thus improving the accuracy of logistics package detection. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the conveying mechanism of the present invention.

[0025] Figure 3 This is a schematic diagram of the weight detection mechanism of the present invention.

[0026] Figure 4 This is a schematic diagram of the detection unit of the present invention.

[0027] Figure 5 This is a schematic diagram of the structure between the adjustment component and the detection unit of the present invention.

[0028] Figure 6This is a schematic diagram of the structure between the size detection mechanism and the triggering unit of the present invention.

[0029] Figure 7 This is a schematic diagram of the size detection mechanism of the present invention.

[0030] Figure 8 This is a schematic diagram of the length detection unit of the present invention.

[0031] Figure 9 This is a flowchart of the cargo size detection method of the present invention.

[0032] In the diagram, 2 is the conveying mechanism; 3 is the weight detection mechanism; 30 is the weighing device; 31 is the fixing plate; 32 is the support spring; 33 is the detection plate; 34 is the first lifting cylinder; 35 is the second lifting cylinder; 36 is the detection unit; 360 is the bidirectional threaded rod; 361 is the sensing plate; 362 is the fixing column; 363 is the contact plate; 364 is the first wire; 365 is the contact plate; 38 is the adjusting assembly; 382 is the synchronous gear; 383 is the adjusting rack; 384 is the adjusting electric push rod; 385 is the electrical control unit; 20 is the support... 21. Support frame; 22. Conveyor roller; 23. Conveyor belt; 4. Conveyor motor; 40. Dimension detection mechanism; 41. Horizontal plate; 42. C-shaped frame; 43. Width detection column; 47. Width detection plate; 48. Height detection plate; 49. Height detection column; 40. Trigger unit; 41. Plate No. 1; 42. Trigger No. 1; 43. Trigger No. 2; 444. Power supply; 45. Length detection unit; 46. Connecting shaft; 47. Roller; 48. Detection gear; 49. Detection rack. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-9 The embodiments of the present invention will be described in detail, but the present invention may be implemented in many different ways as defined and covered by the claims.

[0034] This application discloses a cargo size detection device and method. The cargo size detection device is mainly used in the cargo size detection process. In terms of technical effect, it can avoid the problem of short weight in logistics parcel transportation and indirectly improve the safety of logistics parcels during transportation. In particular, before the logistics parcel is inspected, the size of the logistics parcel is detected to ensure that all the information of the logistics parcel can be reflected on the waybill, which is convenient for the staff transporting the logistics parcel to verify it.

[0035] Existing cargo size detection devices are mainly used in logistics parks to inspect parcels during transportation. The detected parcel information is then entered into the system, and a logistics slip is printed out. This slip is then attached to the parcel to facilitate its rapid and accurate delivery to its destination, reduce the loss of parcels during transportation, and enable real-time monitoring of the parcel transportation process.

[0036] Reference Figure 1 As shown, a cargo size detection device includes a support frame 20, on which a conveying mechanism 2 for batch conveying logistics packages is provided, and a weight detection mechanism 3 and a size detection mechanism 4 are provided on one side of the conveying mechanism 2.

[0037] Firstly, the intelligent logistics package detection device in this embodiment is mobile, ensuring that it can be moved to the vicinity of the transportation equipment that transports the logistics packages, facilitating the transportation of the logistics packages and improving the efficiency of logistics package detection.

[0038] When the entire intelligent logistics parcel inspection equipment needs to transport logistics parcels, the conveying mechanism 2 can transport the logistics parcels; the weight detection mechanism 3 can weigh and detect the logistics parcels; and the size detection mechanism 4 can measure the size of the logistics parcels.

[0039] It should be noted that during the transportation of logistics parcels, it is usually necessary to check the shape, type, and weight of the parcels. In this embodiment, the weight and size of the logistics parcels are two of the detection methods. By weighing the logistics parcels, it is possible to directly detect whether the parcels have decreased in weight before, during, and after transportation, ensuring that no errors occur at any stage of the transportation process.

[0040] Reference Figure 2 The diagram shows a schematic of the structure for transporting logistics packages. Specifically, the conveying mechanism 2 includes a support frame 20 on the ground. Conveying rollers 21 are symmetrically rotated on both sides of the support frame 20 along its length. A conveyor belt 22 is sleeved between the two conveying rollers 21. A conveying motor 23 is fixed on the support frame 20 via a motor mount. The output end of the conveying motor 23 rotates through the support frame 20 and is connected to the conveying rollers 21. In the specific implementation process: when the conveying motor 23 is started, it drives the conveying rollers 21 to rotate, and the conveying rollers 21 drive the conveyor belt 22 to rotate. Placing the logistics package on the conveyor belt 22 can realize the transport of the logistics package.

[0041] Reference Figure 3 and Figure 4The diagram shown is a structural schematic for weighing logistics packages in this embodiment. Specifically, the weight detection mechanism 3 includes a weighing device 30 set on the ground. A fixed plate 31 is set on the upper end of the weighing device 30. Support springs 32 are symmetrically fixed on the upper end of the fixed plate 31. A detection plate 33 is hinged to the end of the support springs 32 away from the fixed plate 31. The detection plate 33 is horizontally distributed with the conveying mechanism 2. A first lifting cylinder 34 and a second lifting cylinder 35 are installed on the upper end of the fixed plate 31. The output ends of the first lifting cylinder 34 and the second lifting cylinder 35 both abut upward against the detection plate 33. A detection unit 36 ​​is set between the fixed plate 31 and the detection plate 33.

[0042] The upper end of the support spring 32 is fixedly connected to a fixing block 320, and a locking post 321 is movably locked on the fixing block 320. The locking post 321 is fixedly installed on the bottom of the detection plate 33, and the bottom of the support spring 32 is fixed on the fixing plate 31.

[0043] It should be noted that the components between the fixing plate 31 and the detection plate 33 at the upper end of the weighing device 30 are tare before weighing and testing. The main purpose of this is to ensure the accuracy of the weighing measurement.

[0044] In the specific implementation process, the logistics package is first placed on the detection plate 33. Under the action of gravity, the logistics package begins to press down on the detection plate 33. The detection plate 33 begins to move downward under the action of gravity. At this time, the detection unit 36 ​​set at the bottom of the detection plate 33 begins to detect the logistics package and detect its weight.

[0045] When the weight of the logistics package after inspection is less than the pre-set weight, the weight of the logistics package is within the normal range, that is, the logistics package is a regular express delivery. Then, the first lifting cylinder 34 is activated, and the first lifting cylinder 34 pushes the side of the detection plate 33 near the support frame 20 to move upward. At this time, the detection plate 33 rotates around the support spring 32 at the bottom of the detection plate 33 away from the support frame 20, so that the detection plate 33 is tilted. At this time, the logistics package on the detection plate 33 slides along the detection plate 33 to the conveyor belt 22 on the side of the support frame 20, so that the logistics package is transported to the unified collection point for collection, and then the logistics package is processed for shipment.

[0046] When the weight of a logistics package exceeds the pre-set weight after inspection, the package is identified as a large item. Therefore, the second lifting cylinder 35 is activated, causing the detection plate 33 to rotate around the axis of the support frame 20 along its length. This causes one side of the detection plate 33 to gradually tilt upwards until the logistics package on the detection plate 33 slides along the detection plate 33 onto the conveyor belt 22 on the other side of the support frame 20. The large logistics package is then transported to another location via the conveyor belt 22 for shipment processing.

[0047] Reference Figure 4 The diagram shown is a schematic of the structure for distinguishing between large-item logistics and ordinary logistics in this embodiment. The detection unit 36 ​​includes a bidirectional threaded rod 360 symmetrically rotated and mounted on the upper end of the fixed plate 31. The bidirectional threaded rod 360 is vertically distributed. Sensing plates 361 are symmetrically mounted on the bidirectional threaded rod 360 by means of threaded connection. A fixed post 362 is fixedly connected to the middle of the lower end of the detection plate 33. A contact plate 363 is installed at the end of the fixed post 362 away from the detection plate 33. Both ends of the contact plate 363 extend toward one end of the sensing plate 361 on the bidirectional threaded rod 360. The two ends of the contact plate 363 are respectively located between two sets of sensing plates 361 on the same side of the bidirectional threaded rod 360.

[0048] After the logistics package is placed on the detection plate 33, the detection plate 33 and the fixed column 362 move downwards simultaneously, and the contact plate 363 at the bottom of the fixed column 362 moves downwards in sync. If the contact plate 363 contacts the contact plate 363 on the two sensing plates 361 at the bottom of the bidirectional threaded rod 360, it means that the weight of the entire logistics package is too heavy and has reached the standard for large-item logistics. The logistics package is then transported to a conveyor belt 23 specifically for transporting large-item logistics.

[0049] A contact piece 365 is fixedly installed on the sensing plate 361. A first wire 364 is connected to the contact piece 365 near the fixing plate 31, and the end of the first wire 364 away from the contact piece 365 is connected to the second lifting cylinder 35. If the contact plate 363 does not contact the contact plate 363 on the two sensing plates 361 at the bottom of the bidirectional threaded rod 360, it means that the weight of the logistics package meets the standard of ordinary logistics, so it is transported to the conveyor belt 23 that is specially used for ordinary logistics.

[0050] Reference Figure 5 As shown, in order to further improve the accuracy of detection, this embodiment also proposes an adjustment component 38; specifically, the bottom of the bidirectional threaded rod 360 is also provided with an adjustment component 38 for controlling the movement of the sensing plate 361. The adjustment component 38 includes a synchronous gear 382 fixedly installed at the bottom of the bidirectional threaded rod 360, and an adjustment rack 383 is symmetrically slidably installed on both sides of the fixed plate 31. The adjustment rack 383 meshes with the synchronous gear 382. The adjustment rack 383 is engraved with a weighing scale line. An adjustment electric push rod 384 is fixedly installed at the upper end of the fixed plate 31. The output end of the adjustment electric push rod 384 extends towards the adjustment rack 383 and is fixedly connected to the adjustment rack 383. An electric control unit 385 is provided on the adjustment electric push rod 384.

[0051] In the specific implementation process, the adjusting electric push rod 384 drives the adjusting rack 383 to move, the adjusting rack 383 drives the synchronous gear 382 to rotate, and then the synchronous gear 382 controls the bidirectional threaded rod 360 to rotate. During the rotation of the bidirectional threaded rod 360, the sensing plate 361 at its upper end is driven to adjust its position on the bidirectional threaded rod 360.

[0052] The inspection standards for large-item logistics can be adjusted. When large logistics transportation equipment is available, the standards can be set relatively low, allowing more packages to be transported using this equipment. Conversely, when large logistics transportation equipment is scarce, the standards can be set relatively high, enabling more packages to be transported using ordinary parcel transport equipment. The limited availability of large logistics transportation equipment is then used to transport heavier packages. Therefore, in this embodiment, the distance between the contact plate 363 and the sensing plate 361 is adjusted to regulate the weighing detection of the logistics packages. When the package being weighed is heavier, the distance between the two sensing plates 361 increases, and vice versa.

[0053] See Figure 6 and Figure 7 As shown, the dimension detection mechanism includes a horizontal plate 40 fixedly installed on the upper end of the support frame 20, a U-shaped frame 41 fixedly installed on the horizontal plate 40, width detection columns 42 symmetrically sliding through the vertical ends of the U-shaped frame 41 on both sides along the length direction of the U-shaped frame 41, a width detection plate 43 fixedly installed on the opposite side of the two width detection columns 42, and symmetrically distributed width detection marks engraved on the horizontal plate 40, with the width detection plate 43 corresponding to the width detection marks; A height detection column 48 is provided that slides through the height direction of the shaped frame 41. A height detection plate 47 is installed at the bottom of the height detection column 48. A height detection mark line is engraved on the vertical end of one side of the shaped frame 41 at equal intervals from top to bottom.

[0054] After the logistics package is weighed, its size needs to be checked. At this time, the logistics package will be moved to the horizontal plate 40 by the conveyor belt 23. Then the logistics package continues to move along the horizontal plate 40. During this process, the width detection plate 43 comes into contact with the width of the logistics package. In the initial state, the width detection plate 43 is in the initial state. When the width detection plate 43 comes into contact with the surface of the logistics package, it is the distance that the width detection plate 43 has moved. The width distance of the logistics package is the dimension engraved on the horizontal plate 40 minus the distance that the width detection plate 43 has moved.

[0055] Similarly, if the height detection plate 47 moves downwards, the height of the logistics package is obtained by subtracting the distance the height detection plate 47 moves from the height detection mark engraved on one side of the frame 41.

[0056] In the initial state, the 0 mark of the height detection line on one side of the frame 41 is located at one end of the horizontal plate 40, and the height detection plate 47 is located at the end away from the 0 mark.

[0057] See Figure 7 and Figure 8 As shown, a triggering unit 44 is also provided on the horizontal plate 40. The triggering unit 44 includes a first plate 440 that is hinged to the horizontal plate 40 by a torsion spring. A square groove is opened on the horizontal plate 40 for the first plate 440 to rotate. A first trigger piece 441 is fixedly installed on the inner side of the first plate 440. A second trigger piece 443 is installed on the inner side of the square groove. A wire 442 is fixedly connected to the second trigger piece 443. The end of the wire 442 away from the second trigger piece 443 is connected in series with the width detection column 42 and the height detection column 48 respectively. A power supply 444 is provided on the wire 442.

[0058] When the horizontal plate 40 receives the pressure of the package, it rotates around the hinge point, causing the first trigger plate 441 of the horizontal plate 40 to contact the second trigger plate 443 in the square slot. At this time, the circuit consisting of the power supply 444, wire 442, height detection column 48, and width detection column 42 is energized. Then, the output ends of the height detection column 48 and width detection column 42 move towards the logistics package, driving the width detection plate 43 and height detection plate 47 to contact the surface of the logistics package and detect the height and width of the logistics package. After the length, width, and height of the logistics package are all detected, they are calculated by the existing known CNC system, and the results are printed on the manifest. When the package delivery personnel scan the manifest using special equipment, the size and weight of the logistics package can be obtained.

[0059] See Figure 6 and Figure 7 As shown, a length detection unit 45 is provided on the first plate 440. The length detection unit 45 includes a connecting shaft 450 rotatably mounted on the first plate 440. A roller 451 is provided in the middle of the connecting shaft 450. A detection gear 452 located on the side end of the roller 451 is also provided on the connecting shaft 450. A detection rack 453 corresponding to the detection gear 452 is slidably mounted on the inner side of the horizontal plate 40.

[0060] When the logistics package presses down on the first plate 440 on the horizontal plate 40, the logistics package abuts against the roller 451. As the logistics package moves along the horizontal plate 40, the roller 451 rotates, which drives the detection gear 452 to rotate. Then, as the detection gear 452 rotates, it drives the detection rack 453 to move. The distance that the detection rack 453 moves is the length of the logistics package.

[0061] In the initial state, the end of the detection rack 453 near the detection plate 33 rests against the 0 mark of the length scale.

[0062] See Figure 9 As shown; in addition, the present invention also provides an intelligent logistics package detection process, which is shown below: S1. Parcel Transportation: First, parcels from all over the world are collected by couriers and transported by large trucks to the local logistics distribution centers where they need to be delivered. At this point, unloading of the parcels is required.

[0063] S2. Package weighing and inspection: After the logistics package arrives at the local logistics distribution center, the logistics package is weighed by the weight inspection agency 3.

[0064] S4. Package size inspection: After the logistics package is weighed, the size of the logistics package is inspected by the size inspection agency 4.

[0065] S5. Package Handling: After the size and weight of the logistics package have been checked, it is transferred to the logistics package waybill, which is then affixed to the logistics package, and the logistics package is sent to its destination.

[0066] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within the invention, and no reference numerals in the claims should be regarded as limiting the scope of the claims.

[0067] Furthermore, it should be understood that 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, 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.

Claims

1. A cargo size detection device, comprising a support frame (20), characterized in that: The support frame (20) is provided with a conveying mechanism (2) for mass conveying of logistics packages. A weight detection mechanism (3) and a size detection mechanism (4) are provided on one side of the conveying mechanism (2). The weight detection mechanism (3) includes a weighing device (30) set on the ground. A fixed plate (31) is set on the upper end of the weighing device (30). A support spring (32) is symmetrically fixed on the upper end of the fixed plate (31). A detection plate (33) is hinged on the end of the support spring (32) away from the fixed plate (31). The detection plate (33) and the conveying mechanism (2) are horizontally distributed. A first lifting cylinder (34) and a second lifting cylinder (35) are installed on the upper end of the fixed plate (31). The output ends of the first lifting cylinder (34) and the second lifting cylinder (35) are both pressed upward against the detection plate (33). A detection unit (36) is set between the fixed plate (31) and the detection plate (33).

2. The cargo size detection device according to claim 1, characterized in that: The upper end of the support spring (32) is fixedly connected to a fixing block (320), and a locking post (321) is movably locked on the fixing block (320). The locking post (321) is fixedly installed on the bottom of the detection plate (33), and the bottom of the support spring (32) is fixed on the fixing plate (31).

3. The cargo size detection device according to claim 1, characterized in that: The detection unit (36) includes a bidirectional threaded rod (360) symmetrically rotated and mounted on the upper end of the fixed plate (31), and the bidirectional threaded rod (360) is vertically distributed. Sensing plates (361) are symmetrically mounted on the bidirectional threaded rod (360) via threaded connections. A fixed post (362) is fixedly connected to the middle of the lower end of the detection plate (33). A contact plate (363) is mounted on the end of the fixed post (362) away from the detection plate (33), and the two ends of the contact plate (363) are... The sensor plate (361) on the bidirectional threaded rod (360) is not extended to one end. The two ends of the contact plate (363) are located between the two sets of sensor plates (361) on the bidirectional threaded rod (360) on the same side. A contact plate (365) is fixedly installed on the sensor plate (361). A first wire (364) is connected to the contact plate (365) near the fixed plate (31), and the end of the first wire (364) away from the contact plate (365) is connected to the second lifting cylinder (35).

4. The cargo size detection device according to claim 3, characterized in that: The bottom of the bidirectional threaded rod (360) is also provided with an adjustment component (38) for controlling the movement of the sensing plate (361). The adjustment component (38) includes a synchronous gear (382) fixedly installed at the bottom of the bidirectional threaded rod (360). Adjustment racks (383) are symmetrically slidably installed on both sides of the fixed plate (31), and the adjustment racks (383) mesh with the synchronous gears (382). Weighing scale lines are engraved on the adjustment racks (383). An adjustment electric push rod (384) is fixedly installed on the upper end of the fixed plate (31). The output end of the adjustment electric push rod (384) extends toward the adjustment rack (383) and is fixedly connected to the adjustment rack (383). An electric control unit (385) is provided on the adjustment electric push rod (384).

5. The cargo size detection device according to claim 1, characterized in that: The conveying mechanism (2) includes a support frame (20) on the ground. Conveying rollers (21) are symmetrically rotated on both sides of the support frame (20) along its length. A conveyor belt (22) is sleeved between the two conveying rollers (21). A conveying motor (23) is fixed on the support frame (20) via a motor seat. The output end of the conveying motor (23) rotates through the support frame (20) and is connected to the conveying rollers (21).

6. The cargo size detection device according to claim 1, characterized in that: The size detection mechanism includes a horizontal plate (40) fixedly installed on the upper end of the support frame (20), a U-shaped frame (41) fixedly installed on the horizontal plate (40), width detection columns (42) symmetrically sliding through the vertical end of the U-shaped frame (41) on both sides along the length direction of the U-shaped frame (41), a width detection plate (43) fixedly installed on one side opposite to the two width detection columns (42), and symmetrically distributed width detection marks are engraved on the horizontal plate (40), and the width detection plate (43) corresponds to the width detection marks; A height detection column (48) is installed through the height direction of the C-shaped frame (41). A height detection plate (47) is installed at the bottom of the height detection column (48). A height detection mark is engraved on the vertical end of one side of the C-shaped frame (41) at equal intervals from top to bottom.

7. The cargo size detection device according to claim 6, characterized in that: The horizontal plate (40) is also provided with a trigger unit (44). The trigger unit (44) includes a first plate (440) hinged on the horizontal plate (40) by a torsion spring. A square groove is opened on the horizontal plate (40) for the first plate (440) to rotate. A first trigger piece (441) is fixedly installed on the inner side of the first plate (440). A second trigger piece (443) is installed on the inner side of the square groove. A wire (442) is fixedly connected to the second trigger piece (443). The end of the wire (442) away from the second trigger piece (443) is connected in series with the width detection column (42) and the height detection column (48) respectively. A power supply (444) is provided on the wire (442).

8. The cargo size detection device according to claim 7, characterized in that: The first plate (440) is provided with a length detection unit (45). The length detection unit (45) includes a connecting shaft (450) rotatably mounted on the first plate (440). A roller (451) is provided in the middle of the connecting shaft (450). A detection gear (452) located at the side end of the roller (451) is also provided on the connecting shaft (450). A detection rack (453) corresponding to the detection gear (452) is slidably mounted on the inner side of the horizontal plate (40).

9. A method for detecting cargo dimensions, further comprising a cargo dimensions detection device as described in any one of claims 1-8, characterized in that: The method for inspecting cargo dimensions is as follows: S1. Parcel Transportation: First, parcels from all over the world are collected by couriers and transported by large trucks to the local logistics distribution centers where they need to be delivered. At this time, unloading of the parcels is required. S2. Package weighing and inspection: When the logistics package arrives at the local logistics distribution center, the logistics package is weighed by the weight inspection agency (3); S3. Package size inspection: After the logistics package is weighed, the size of the logistics package is inspected by the size inspection agency (4); S4. Package Processing: After the size and weight of the logistics package have been checked, it is transferred to the logistics package waybill, which is then affixed to the logistics package, and the logistics package is sent to its destination.

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