Handles and packaging bags

Abstract

In the handle (11) and the packaging bag, the handle (11) has a main body (110) with a lifting hole (1101) through which the lifting part passes. The inner wall of the lifting hole (1101) is provided with a position limiting part (111) having a recess (1111) and an opening (1112) facing the lifting hole (1101). The recess (1111) is used to limit the position of the lifting part in the circumferential direction, and the lifting part can exit the handle (11) through the opening (1112).

Description

[[TECHNICAL FIELD]]

[0001] The present application claims the priority of the Chinese patent application filed on January 08, 2024 with the application number 202420055158.8 and the application title "Handle and Packaging Bag", the entire content of which is incorporated herein as part of the present application.

[0002] The present disclosure relates to the field of commodity packaging and distribution technologies, and more specifically, to a handle and a packaging bag. [[BACKGROUND ART]]

[0003] Packaging bags such as take-out bags, meal bags and distribution bags are provided with a handle for facilitating carrying, hanging and lifting. In the related art, since the handle of the packaging bag is made of soft material, there is a problem that the handle tends to cut into the hand and is inconvenient to lift. In particular, it cannot be guaranteed that the bag can be smoothly transferred from one lifting part to another lifting part, the bag is prone to falling during lifting, which adversely affects user experience. [[SUMMARY OF THE INVENTION]] [[Problem to be Solved by the Invention]]

[0004] An object of the present disclosure is to provide a handle and a packaging bag that solves the problem that a conventional handle is easily disengaged when lifting an object.

[0005] In order to achieve the above object, the present disclosure provides a handle having a body portion with a lifting hole through which a lifting portion passes. A position limiting portion having a concave portion and an opening opened toward the inside of the lifting hole is provided on an inner wall of the lifting hole. The concave portion is used for circumferentially limiting the position of the lifting portion, and the lifting portion can pass through the opening and exit from the opening.

[0006] In one feasible embodiment, the handle includes two fixed arms and a connecting arm connecting the two fixed arms. Both the two fixed arms and the connecting arm form the lifting hole. A position limiting section is provided at the position where the two fixed arms and the connecting arm are connected, and the openings of the two position limiting sections are arranged facing each other.

[0007] In one feasible embodiment, the handle is fixed to the packaging bag by passing through an assembly hole in the packaging bag. The handle is further provided with a fixing portion for fixing connection to the packaging bag, the fixing portion being connected to one side of the main body and forming the lifting hole together with the main body.

[0008] In one feasible embodiment, an adhesive layer is provided on the surface of the fixing part facing the main body, and the fixing part is fixed to the packaging bag via the adhesive layer when the main body passes through the assembly hole.

[0009] In one possible embodiment, the handle further includes a reinforcing member fixed to the side of the fixing portion away from the main body portion, wherein both ends of the reinforcing member extend longitudinally beyond the fixing portion.

[0010] In one feasible embodiment, at least one of the main body and the reinforcing member is provided with a plurality of reinforcing ribs, the plurality of reinforcing ribs are arranged at an angle to each other, and the region between two adjacent reinforcing ribs becomes a weight reduction region.

[0011] In one feasible embodiment, a positioning hole is provided in the handle at a position close to the position limiting portion.

[0012] In one feasible embodiment, the lengthwise size of the lifting hole is D1, and the heightwise size of the lifting hole is D2, where 80mm ≤ D1 ≤ 95mm and 30mm ≤ D2 ≤ 40mm.

[0013] In one feasible embodiment, the length of the reinforcing member is D3, where 200mm ≤ D3 ≤ 300mm.

[0014] A second aspect of the present disclosure further provides a packaging bag including a bag body and a handle provided on the bag body, wherein the handle is the handle described above.

[0015] With the above technical solution, in the handle according to this disclosure, the lifting portion extends into the lifting hole and cooperates with the position limiting portion, enabling locking between the handle and the lifting portion by the recess, thereby stably suspending the delivery bag on the lifting portion and preventing it from falling during lifting. After lifting to a predetermined position, the lifting portion can easily detach from the opening and exit the handle, so that the delivery bag can be easily removed from the lifting portion. This ensures stability during lifting and does not affect the subsequent handover of the delivery bag.

[0016] Other features and advantages of this disclosure will be described in detail in the following specific embodiments.

[0017] The accompanying drawings are provided for further understanding of this disclosure, constitute part of this specification, and are used to illustrate this disclosure in conjunction with the specific embodiments described below, but do not limit this disclosure. [Brief explanation of the drawing]

[0018] [Figure 1] Figure 1 is a schematic diagram of the structure of a delivery bag provided in an exemplary embodiment of the present disclosure. [Figure 2] Figure 2 is a schematic diagram of the structure of a delivery bag provided in an exemplary embodiment of the present disclosure. [Figure 3] Figure 3 is a schematic diagram of the structure of a delivery bag provided in an exemplary embodiment of the present disclosure. [Figure 4] Figure 4 is a schematic diagram of the structure of a delivery bag provided in an exemplary embodiment of the present disclosure. [Figure 5] Figure 5 is a schematic diagram of the structure of a delivery bag provided in an exemplary embodiment of the present disclosure. [Figure 6] Figure 6 is a schematic structural diagram of a handle provided in an exemplary embodiment of the present disclosure. [Figure 7] Figure 7 is a schematic structural diagram of a handle provided in an exemplary embodiment of the present disclosure. [Figure 8] Figure 8 is a schematic structural diagram of a handle provided in an exemplary embodiment of the present disclosure. [Figure 9] Figure 9 is a schematic structural diagram of a handle provided in an exemplary embodiment of the present disclosure. [Figure 10] Figure 10 is a schematic structural diagram of an article transfer mechanism provided in an exemplary embodiment of the present disclosure. [Figure 11] Figure 11 is a schematic structural diagram of an article transfer mechanism provided in an exemplary embodiment of the present disclosure. [Figure 12] Figure 12 is a schematic structural diagram of an article transfer mechanism provided in an exemplary embodiment of the present disclosure. [Figure 13] Figure 13 is a schematic structural diagram of an article transfer mechanism provided in an exemplary embodiment of the present disclosure. [Figure 14] Figure 14 is a schematic structural diagram of an article transfer mechanism provided in an exemplary embodiment of the present disclosure. [Figure 15] Figure 15 is a schematic structural diagram of an article transfer mechanism provided in an exemplary embodiment of the present disclosure. [Figure 16] Figure 16 is a schematic structural diagram of an article transfer mechanism provided in an exemplary embodiment of the present disclosure. [Figure 17] Figure 17 is a schematic structural diagram of an article transfer mechanism provided in an exemplary embodiment of the present disclosure. [Figure 18] Figure 18 is a schematic diagram of the internal structure of a locker provided in an exemplary embodiment of the present disclosure. [Figure 19] Figure 19 is a schematic structural diagram of a suspension mechanism provided in an exemplary embodiment of the present disclosure. [Figure 20] Figure 20 is a schematic structural diagram of a suspension mechanism provided in an exemplary embodiment of the present disclosure. [Figure 21]Figure 21 is a schematic diagram of the structure of a suspension mechanism provided in an exemplary embodiment of the present disclosure. [Figure 22] Figure 22 is a schematic diagram of the structure of a suspension mechanism provided in an exemplary embodiment of the present disclosure. [Figure 23] Figure 23 is a schematic diagram of the structure of a suspension mechanism provided in an exemplary embodiment of the present disclosure. [Figure 24] Figure 24 is a schematic diagram of the structure of a suspension mechanism provided in an exemplary embodiment of the present disclosure. [Figure 25] Figure 25 is a schematic diagram of the structure of a suspension mechanism provided in an exemplary embodiment of the present disclosure. [Figure 26] Figure 26 is a schematic diagram of the structure of the transfer mechanism and delivery bag coordination method provided in an exemplary embodiment of the present disclosure. [Figure 27] Figure 27 is a schematic diagram illustrating a method of linking a suspension mechanism and a delivery bag as provided in an exemplary embodiment of the present disclosure. [Figure 28] Figure 28 is a schematic diagram illustrating a method of linking a suspension mechanism and a delivery bag as provided in an exemplary embodiment of the present disclosure. [Figure 29] Figure 29 is a schematic diagram showing the structure of a cargo delivery system provided in an exemplary embodiment of the present disclosure. [Modes for carrying out the invention]

[0019] Specific embodiments of this disclosure will be described in detail below, in conjunction with the attached drawings. It should be understood that the specific embodiments described herein are used solely for the purpose of describing and interpreting this application and are not intended to limit it.

[0020] Furthermore, all actions in this disclosure, including the acquisition of signals, information, or data, will be carried out in accordance with the relevant data protection laws and policies of the country where they are located, and with the permission of the owner of the relevant device.

[0021] In this disclosure, unless otherwise specified, directional terms such as “top,” “bottom,” “summit,” and “bottom” generally refer to the position where the shipping bag provided in this disclosure is normally placed. “Front” and “rear” refer to the directions indicated by the arrows in Figure 19. “Inside” and “outside” refer to the inner and outer contours of the corresponding components. Furthermore, terms such as “first” and “second” are used to distinguish different components and do not have any order or significant meaning. In the following description, when referring to the attached drawings, unless otherwise specified, the same reference number across different drawings indicates the same or similar elements.

[0022] As shown in Figure 1, this disclosure provides a delivery bag 1 including a bag body 10 and a handle 11 provided on the bag body 10. The delivery bag 1 is not limited to drone delivery scenarios but can also be used in scenarios such as everyday hand-carrying by users, delivery by food delivery personnel, and sales in supermarkets. The delivery bag 1 can be a packaging bag for various products, a takeout bag, a meal bag, etc. The following provides a detailed explanation using the design of a meal bag in a drone delivery scenario as an example.

[0023] The following delivery scenario is assumed. As shown in Figure 18, a delivery bag 1 containing cargo or goods is placed in a storage space within a locker. The locker is equipped with a movable robotic arm 2, and a transfer mechanism 3 is provided at the tip of the robotic arm 2. The robotic arm 2 moves to a designated position and places the delivery bag 1, located in the corresponding storage space, onto the transfer mechanism 3. The robotic arm 2 drives the transfer mechanism 3 and the delivery bag 1 to the top opening 20 of the locker. The arriving drone lands at a designated position (e.g., a landing platform at the top of the locker) and interacts with the transfer mechanism 3. The delivery bag 1 located at the transfer mechanism 3 is transferred to the drone's receiving end, and the delivery bag 1 is suspended and secured from the drone. The drone carries the delivery bag 1, flies to the delivery location, and completes the automated drone delivery process by releasing the delivery bag 1 at a designated position at the delivery location. Conversely, the drone carrying the delivery bag 1 can also transfer the goods to the transfer mechanism 3 within the locker. The robotic arm 2 drives the transfer mechanism 3 to move to the designated storage space and releases the delivery bag 1. This enables the automated transfer of the delivery bag 1 between lockers in different buildings, or between sellers and users.

[0024] This disclosure describes the design of a separate goods transfer mechanism 3 and a drone suspension mechanism 4 based on the above delivery scenario, and further, the design of the delivery bag 1 and the handle 11 of the delivery bag 1 in accordance with the above structural design. Specific embodiments will be described in detail below. Of course, the goods transfer mechanism 3 and the drone suspension mechanism 4 are not limited to the above delivery scenario, and any structure capable of receiving, lifting, locking, and releasing the delivery bag 1 is covered by this disclosure.

[0025] In this disclosure, as shown in Figures 1 to 3, the delivery bag 1 may have a bag body 10 made of a soft material and a handle 11 made of a hard material. As shown in Figure 3, the opening of the bag body 10 is provided with a foldable first opening edge 101 and a second opening edge 102. The handle 11 is fixed to the second opening edge 102, and the first opening edge 101 is provided with a first opening 1011. As shown in Figure 1, the first opening edge 101 can overlap and be fixed to the second opening edge 102, and the handle 11 protrudes from the first opening 1011, thereby making it easier to lift and carry.

[0026] In this disclosure, the bag body 10 may be made of a soft material such as nonwoven fabric and may be integrally molded by heat pressing or ultrasonic processing, while the handle 11 may be made of a hard material such as plastic or synthetic resin. The soft material used for the bag body 10 is compared to corrugated cardboard used in corrugated cardboard boxes. Compared to corrugated cardboard made by die-cutting sheet metal, the use of soft materials such as nonwoven fabric offers significant advantages in terms of cost, weight, processing technology, and reusability. The handle 11, unlike the soft handles on corrugated cardboard boxes, is made of a hard material. Because the handle 11 maintains its shape and does not deform, it can be smoothly lifted by the transfer mechanism 3 and can smoothly enter the positional restriction space of the suspension mechanism 4. This solves problems such as soft handles digging into the hand or being difficult to lift. Particularly considering drone delivery scenarios, the handle 11 can ensure the accuracy of the transfer operation, improve the success rate of suspension fixing, and avoid the impact of the food bag's sway on drone operation. Furthermore, improvements to the materials have resulted in an improved sealing method at the handle 11 position of the delivery bag 1, ensuring the reliability of the connection at the handle position. This ensures the connection strength at the handle 11 position, preventing the handle 11 from detaching during lifting and affecting the delivery process.

[0027] The delivery bag 1 provided in this disclosure features an improved material for the bag body 10, a simpler manufacturing process, contributing to mass production, lower costs, lighter weight, smaller volume, and reusability. Furthermore, the material of the handle 11 has been improved, making it easier to lift and less likely to injure the hands. In addition, combined with the improvements to the materials of the bag body 10 and handle 11, the delivery bag 1 employs a perforated handle 11, which is easier and more convenient to operate than a physical buckle, while also ensuring strength at the handle 11, making lifting the bag more reliable and convenient.

[0028] In this disclosure, the bag body 10 can have any suitable structure. In the illustrated embodiment, the bag body 10 can have a rectangular parallelepiped structure with an open top. Articles are placed into the bag from top to bottom. The first opening edge 101 and the second opening edge 102 are folded and overlapped to seal the bag. The top has an arc-shaped structural design that provides a large storage space. In other embodiments, the bag body may have a square, circular, or other structure, and may open from the side, all of which are within the scope of this disclosure.

[0029] After the first opening edge 101 overlaps with the second opening edge 102, the first opening edge 101 has an outer extension that extends beyond the second opening edge 102, thereby increasing the overlapping area of ​​the two opening edges. To prevent the first opening edge 101 from lifting up, a first adhesive portion 13 is provided between the outer surface of the second opening edge 102 and the inner surface of the first opening edge 101, thereby fixing the first opening edge 101 when it overlaps with the second opening edge 102. The first adhesive portion 13 may be double-sided tape, Velcro, etc., which ensures airtightness when sealing the opening and better protects the items inside the bag.

[0030] The handle 11 can be directly fixed to the second opening edge 102, and can be fixed by dispensing adhesive, double-sided tape, or heat bonding. In this disclosure, as shown in Figures 2 and 3, the handle 11 includes a body portion 110 and a fixing portion 112. The second opening edge 102 is provided with a second opening 1021 through which the body portion 110 can pass, and the fixing portion 112 is fixed by locking into the inner surface of the second opening edge 102. In this embodiment, the body portion 110 of the handle 11 extends outward, passing through the second opening 1021 of the second opening edge 102 and the first opening 1011 of the first opening edge 101, in order. The handle 11 is designed with a multilayer structure at the handle position to reinforce the connection at the handle position and prevent the handle 11 from detaching and affecting the lifting. Furthermore, the fixing portion 112 can be locked to the inner surface of the second opening edge 102, increasing the contact area with the second opening edge 102 and allowing the handle 11 to be stably fixed to the second opening edge 102. In particular, in embodiments where the bag body 10 is made of a soft material, the fixing portion 112 can ensure connection reliability at the position of the handle 11.

[0031] The fixing portion 112 can be fixed to the inner surface of the second opening edge 102 in various ways. In this disclosure, as shown in Figure 2, a second adhesive portion 14 is provided between the fixing portion 112 and the inner surface of the second opening edge 102. The second adhesive portion 14 may be an annular structure surrounding the main body portion 110. The second adhesive portion 14 may use double-sided tape with excellent high and low temperature resistance that can ensure the fixing strength of the handle. In addition, by using reusable Velcro, the handle 11 can be easily removed and replaced. The second adhesive portion 14 is designed as an annular structure, which can seal the second opening 1021, ensuring the airtightness of the shipping bag and achieving a waterproof function.

[0032] To further increase the connection strength at the second opening edge 102 of the handle 11, multiple first adhesive portions 13 may be provided, as shown in Figure 3, extending in the same direction as the handle 11 and positioned on both sides of the handle 11. In this embodiment, both the handle 11 and the first adhesive portions 13 extend along the length direction. The first adhesive portions 13 are provided at the top and bottom of the handle 11, respectively, and work in cooperation with the fixing portion 112 to prevent the handle 11 from falling out of the second opening 1021.

[0033] Considering that the bag body 10 of the delivery bag 1 according to this disclosure is made of a flexible material, in order to maintain the shape of the bag body 10, the delivery bag further includes a liner 12 provided inside the bag body 10, as shown in Figures 2 and 4. The liner 12 can be positioned on the bottom wall of the bag body 10, thereby increasing the load-bearing capacity of the goods inside the delivery bag 1, and at the same time serving to restrain and secure the articles inside the bag. The liner 12 can be designed according to the type of articles. In one exemplary embodiment of this disclosure, as shown in Figure 4, the liner 12 has a bottom plate 121 and a plurality of foldable edges 122 provided on the outer circumference of the bottom plate 121. The bottom plate 121 is used so as to be in close contact with the bottom wall of the bag body 10, and the plurality of foldable edges 122 fold upward to form a storage space between themselves and the bottom wall of the bag body 10.

[0034] To reduce the space occupied by the delivery bag 1, the delivery bag 1 provided in this disclosure is foldable, and as shown in Figure 3, the opposite side wall of the bag body 10 is provided with a number of folds 104 that allow the delivery bag 1 to be folded into a flat shape and the bottom to be folded to one side of the flat shape. The number of folds 104 includes a first fold extending vertically from the middle of the side wall and two second folds that form a Y shape with the first fold. This allows the bag body 10 to be folded in half from the center into a flat shape. The folds 104 further include a third fold located above the second folds. The third fold is positioned perpendicular to the first fold. The bottom of the bag body 10 can be folded to one side of the flat shape via the third fold. This is particularly suitable for embodiments that include a liner 12 at the bottom. Furthermore, the liner 12 in the above structure does not affect the folding of the delivery bag 1. The position of the third fold can be designed according to the height of the liner 12. This disclosure does not impose any particular limitations. The folding process is similar to that of a clothing paper bag and will not be described in detail here.

[0035] As shown in Figure 5, the delivery bag 1 provided in this disclosure has a folded storage state, saving space and allowing it to be stored for future use. As shown in Figure 3, the delivery bag 1 also has an open state with an opening, making it easy to place goods into the bag through the top opening. Furthermore, as shown in Figure 1, the delivery bag 1 also has a sealed state with a closed opening, allowing goods to be placed inside the bag, the opening to be closed, and the handle 11 to be lifted and removed at any time. The delivery bag 1 can be freely switched between these three states and is easy to operate.

[0036] Next, we will explain the structure of the handover mechanism 3 and the handle 11, and how they cooperate to ensure a smooth handover operation.

[0037] This disclosure provides a standardized design for the handle of the delivery bag 1. As shown in Figures 6 to 8, this disclosure provides a handle 11. The main body 110 of the handle 11 is provided with a lifting hole 1101 for a lifting part to pass through. The inner wall of the lifting hole 1101 is provided with a position limiting part 111. The position limiting part 111 can restrict the position of the lifting part at least in the circumferential direction, and can move the lifting part away from the position limiting part 111 in a predetermined direction and escape from the handle 11. Here, the lifting part may be a lifting rod 32 of a connecting mechanism 3 described later, or it may be a lifting structure of other structural forms such as a hook, gripper arm, or boom. The handle 11 may be the handle of the delivery bag 1 described above.

[0038] In the standardized handle provided in this disclosure, the lifting portion extends into the lifting hole 1101 and cooperates with the position limiting portion 111 to enable locking between the handle 11 and the lifting portion, thereby securely suspending the delivery bag 1 on the lifting portion and preventing it from falling during lifting. After being lifted to a predetermined position, the lifting portion can easily detach from the position limiting portion 111 and exit from the handle 11, so that the delivery bag 1 can be easily removed from the lifting portion. This ensures stability during lifting and does not affect the subsequent handover of the delivery bag 1.

[0039] Accordingly, as shown in Figures 10 to 17, the present disclosure provides an article transfer mechanism 3 capable of performing an article transfer operation. Herein, "article" can be, for example, the handle of the aforementioned delivery bag 1. The following will be a detailed description using the delivery bag 1 equipped with the handle 11 provided by the present disclosure as an example. The transfer mechanism 3 includes a base portion 31 and two parallel lifting rods 32. The first end of each lifting rod 32 is attached to the base portion 31, and the second end is used to grip an article. The base portion 31 is provided with a power member 34 for driving the lifting rods 32 and a transmission member 35 provided between the power member 34 and the lifting rods 32. The power member 34 drives the two lifting rods 32 synchronously via the transmission member 35 to move them closer to or further apart from each other. By controlling the power member 34, the movement of the two lifting rods 32 can be automatically controlled. Since the two lifting rods 32 share the same power member and move synchronously, the space required for the power member 34 is saved, reducing the occupied space and making the structure more compact. Of course, the two lifting rods 32 can also be driven individually, and both are included in the scope of this disclosure.

[0040] In the transfer mechanism 3 provided in this disclosure, a power member 34 drives two lifting rods 32 via a transmission member 35. Since the distance between the two lifting rods 32 is automatically adjustable, this transfer mechanism 3 can accommodate different specifications and types of articles. The second end of each lifting rod 32 can stably grip the article, enabling accurate and reliable transfer operations. This transfer mechanism achieves highly reliable article transfer and enables automatic transfer, thereby increasing the reliability of the transfer operation and improving operability.

[0041] In the example of transferring a delivery bag 1 with a handle 11 using this transfer mechanism 3, the second end of the lifting rod 32 can extend into the lifting hole 1101 of the handle 11. The two lifting rods 32 can move closer to and further away from each other, entering and locking into the position limiting portion 111 of the handle 11, or disengaging from the position limiting portion 111 and exiting the handle 11.

[0042] A position limiting section 111 is provided on the inner wall opposite the lifting hole 1101. The two lifting rods 32 move closer to each other and extend into the lifting hole 1101. Then, the two lifting rods 32 move away from each other and enter and lock into the corresponding position limiting section 111. At this point, the transfer mechanism 3 completes the transfer operation of the delivery bag 1 and the delivery bag 1 can be moved. For example, after moving to align with the drone and transferring the delivery bag 1 to the drone, the two lifting rods 32 move closer to each other, detach from the corresponding position limiting section 111 and exit from the handle 11, completing the unlocking of the delivery bag 1 and the transfer mechanism 3. The transfer mechanism 3 can achieve reliable transfer of the delivery bag 1, realize automatic transfer, increase the reliability of the transfer operation, and make operation more convenient.

[0043] As shown in Figure 18, the transfer mechanism 3 can be installed on the robotic arm 2 of the locker. The movement of the robotic arm 2 drives the transfer mechanism 3, which receives the delivery bag 1 and then drives the delivery bag 1 to move it. Of course, the transfer mechanism 3 can also be installed in any scenario where it is necessary to lift the delivery bag 1.

[0044] The position limiting portion 111 can be any suitable structure that limits the position of the lifting rod 32 after it has been inserted into the lifting hole 1101, such as a position limiting hole. The position limiting portion 111 can achieve not only circumferential limiting but also axial limiting in cooperation with the lifting rod 32. Any position limiting portion that can achieve this limiting effect is within the scope of protection of this disclosure. In one exemplary embodiment of this disclosure, as shown in Figure 8, the position limiting portion 111 may be a notch formed in the inner wall of the lifting hole 1101. The notch has a recess 1111 and an opening 1112 that is opened toward the interior of the lifting hole 1101. The recess 1111 is used to limit the position of the lifting rod 32 in the circumferential direction. The lifting rod 32 can exit the handle 11 through the opening 1112. The opening 1112 is oriented in a predetermined direction. Specifically, in this embodiment, as shown in Figure 8, the handle 11 has two fixed arms and a connecting arm that connects these two fixed arms. Both the fixed arm and the connecting arm form a lifting hole 1101. Here, the lifting hole 1101 can be rectangular in shape to facilitate the insertion of the lifting rod 32. Position limiting sections 111 are provided at the connection points of the two fixed arm and the connecting arm, and the openings 1112 of the two position limiting sections 111 are arranged to face each other. In other words, the two position limiting sections 111 are provided at the two opposing corners of the handle 11, and each corresponds to one of the two lifting rods 32. In this embodiment, the recess 1111 can be a two-thirds arc, and the remaining one-third circular recess becomes the opening 1112. Specifically, it can be designed to match the shape and shaft diameter of the lifting rod 32. One end of the opening 1112 can be designed with a rounded corner, so that the two lifting rods 32 can escape from the position limiting section 111 when they approach each other, thereby achieving circumferential position limiting without affecting the unlocking mechanism. It should be understood that the recess 1111 may have other shapes that allow for circumferential constraint on the lifting rod 32.

[0045] As shown in Figure 8, the width of the fixing arms on both sides gradually increases as you move away from one end of the opening 1112 from the connecting arm, thus providing reinforcement. At the position of the position limiting section 111, the structural strength of the handle 11 itself is improved, while at the same time, it does not affect the insertion and removal of the lifting rod 32.

[0046] The position limiting section 111 is used to limit the position of the lifting rod 32 in the circumferential direction. Furthermore, to limit its position in the axial direction and obtain a clamping effect on the article, a fixed block 321 and a movable block 322 are provided at the second end of the lifting rod 32, as shown in Figures 10 and 15. The movable block 322 is movable along the axial direction and clamps the handle 11 in the gap 320 between the fixed block 321 and the movable block 322. By adjusting the axial position of the movable block 322, handles 11 of different specifications can be fixed. The size of the gap 320 can be designed according to the wall thickness of the main body 110 of the handle 11. The movable block 322 moves toward the fixed block 321 and clamps the handle 11. The movable block 322 moves away from the fixed block 321 and releases the lock on the handle 11. By providing the movable block 321 and the fixed block 322, the handle 11 is stably fixed in a predetermined position on the lifting rod 32 and axial shaking is prevented. Furthermore, in cooperation with the position limiting unit 111, the stability and reliability of lifting the delivery bag 1 after handover are ensured.

[0047] There are several ways to adjust the axial position of the movable block 322. For example, the movable block 322 can be screwed onto the lifting rod 32. In this disclosure, a stopper portion 323 is provided on the side of the movable block 322 on the lifting rod 32 that is away from the fixed block 321, and an elastic member 33 is provided between the stopper portion 323 and the movable block 322. When unlocking is required, the movable block 322 moves away from the fixed block 321, compressing the elastic member 33 and expanding the gap 320. When locking is required, the restoring force of the elastic member 33 causes the movable block 322 to automatically move toward the fixed block 321 and perform a clamping operation.

[0048] In this disclosure, at least one of the movable block 322 and the fixed block 321 is provided with a guide slope that extends diagonally toward the gap 320. In the embodiment shown in Figure 10, the guide slope 3221 is provided only on the movable block 322. The robot arm 2 is moved by driving the transfer mechanism 3 so that it extends into the lifting hole 1101 of the handle 11. If the robot arm 2 extends too far forward, the handle 11 can automatically slide into the gap 320 along the guide slope 3221, even if the handle 11 is in the position of the guide slope 3221.

[0049] In the embodiment shown in Figure 15, the movable block 322 and the fixed block 321 are each provided with guide slopes. The fixed block 321 has a conical surface and a first guide slope 3211 extending toward the gap 320. The movable block 322 has a second guide slope 3221 extending toward the gap 320. When the handle 11 of the delivery bag 1 is positioned within the range of the first guide slope 3211 and the second guide slope 3221, the handle 11 automatically slides into the gap 320, thereby reducing constraints on the handover position and facilitating the handover operation.

[0050] To further increase the connection strength at the handle 11, a reinforcing member 114 is provided on the handle 11, as shown in Figures 6 and 7. The reinforcing member 114 is fixed to the side of the fixing part 112 away from the main body 110. The reinforcing member 114 acts as a load support part between the handle 11 and the bag body 10, distributing the weight of the load between the reinforcing member 114 and the main body 110, avoiding stress concentration on the main body 110 and ensuring uniform stress distribution.

[0051] As shown in Figures 3 and 8, both ends of the reinforcing member 114 extend beyond the fixing portion 112. A stepped portion 103 is provided at the top opening of the bag body 10. As shown in Figure 1, when the delivery bag 1 is sealed, the reinforcing member 114 overlaps the side wall opposite the opening and is positioned by the stepped portion 103, thus playing a supporting and position-restricting role and preventing deformation when the delivery bag 1 is lifted.

[0052] Furthermore, in order to increase the structural strength of the handle 11 itself, as shown in Figure 8, a plurality of reinforcing ribs 115 are provided on at least one of the main body 110 and the reinforcing member 114, arranged at angles to each other. The area between the reinforcing ribs 115 is designed for weight reduction, thereby reducing the weight of the handle 11 while ensuring its strength, and adhering to the principles of lightweight design.

[0053] As shown in Figure 9, the size of the handle 11 is standardized in this disclosure. The length of the lifting hole 1101 is D1, and the height is D2, where 80mm ≤ D1 ≤ 95mm and 30mm ≤ D2 ≤ 40mm. The size of D1 can be determined by the width of four fingers, which allows the user to easily insert into or remove from the handle 11 when carrying the delivery bag 1. The size of D2 must be designed considering the thickness of the fingers, the shaft diameter of the lifting rod 32, and the relevant structure of the drone receiving end, so that the above structure can be freely inserted into or removed from the lifting hole 1101. The longest distance between the two lifting rods 32 in the transfer mechanism 3 and the distance between the two guide parts 451 on both sides in the suspension mechanism 4 can be designed according to D1. The length of the reinforcing member 114 is D3, where 200mm ≤ D3 ≤ 300mm, and can specifically be designed according to the length of the bag body 10. Due to the design of the shape, size, and material of the handle 11, the handle 11 can withstand an impact force of 16N.

[0054] In this disclosure, as shown in Figure 7, a positioning hole 113 is provided near the position limiting portion 111 of the handle 11. As shown in Figure 18, the base portion 31 of the transfer mechanism 3 can be detachably connected to the robot arm 2 by fasteners. The robot arm 2 is movable to drive the movement of the transfer mechanism 3. As shown in Figure 16, the transfer mechanism 3 further includes a camera module 38 provided on the base portion 31. The camera module 38 is used to acquire positional information of the positioning hole 113 on the handle 11. The camera module 38 acquires positional information of the positioning hole 113 of the handle 11 and transmits this positional information to the robot arm 2, thereby controlling the movement of the robot arm 2, adjusting the relative position between the transfer mechanism 3 and the handle 11, ensuring that the lifting rod 32 is smoothly inserted into the lifting hole 1101, and successfully completing the transfer operation.

[0055] As shown in Figure 8, each of the fixing arms on both sides of the handle 11 is provided with multiple positioning holes 113. There can be three or four positioning holes 113. The camera module 38 can determine the position of the handle 11 by quickly and accurately acquiring the positions of the positioning holes 113. The positioning holes 113 are designed to be close to the position limiting unit 111. The positioning holes 113 can be combined with the position limiting unit 111. The holes defined and acquired by the position limiting unit 111 are the positioning holes 113, thus avoiding positional errors of the positioning holes 113 and ensuring visual accuracy.

[0056] Furthermore, the transfer mechanism 3 includes multiple methods for achieving automatic approach or separation between the two lifting rods 32.

[0057] In a first exemplary embodiment of the present disclosure, as shown in Figure 11, the base portion 31 is provided with a first sliding groove 311 and a second sliding groove 312 that are arranged parallel and alternately. The first sliding groove 311 and the second sliding groove 312 correspond to two lifting rods 32, respectively. Each lifting rod 32 has a straight portion 324 located within the corresponding sliding groove and an outer extension portion 325 that is angled with the straight portion 324. Compared to the parallel arrangement embodiment, arranging the two sliding grooves parallel and alternately allows for a wider spacing between the two lifting rods 32 when they are separated, thereby expanding the range of application of the lifting hole 1101. At the same time, by adjusting the angle formed by the outer extension portion 325, the two lifting rods 25 can be positioned in the same height direction, making insertion into the lifting hole 1101 easier.

[0058] In a first exemplary embodiment of the present disclosure, as shown in Figures 12 to 14, the base portion 31 is provided with two guide rails 36 and sliders 37 slidably mounted on the corresponding guide rails 36. The transmission member 35 includes a gear 351 connected to the output shaft of a power member 34 and a rack 352 connected to the corresponding slider 37. The first ends of two lifting rods 32 are each connected to the corresponding rack 352. The two racks 352 are arranged in parallel and each meshes with the gear 351. The power member 34 is a motor, and the gear 351 is connected to the output shaft of the motor and transmits power to the racks 352. The racks 352 on both sides drive the corresponding sliders 37, which move linearly along the guide rails 36, thereby moving the two lifting rods 32 closer together or further apart.

[0059] In a second exemplary embodiment of the present disclosure, as shown in Figure 15, the transmission member 35 includes a movable seat 353 connected to the output shaft of a power member 34, and a multilink mechanism 354 connected between the movable seat 353 and the first end of each lifting rod 32, i.e., a multilink mechanism 354 is provided between each lifting rod 32 and the movable seat 353. The power member 34 sequentially transmits power to the movable seat 353 and the multilink mechanism 354, converting it into movement of the lifting rods 32. Specifically, in this embodiment, as shown in Figure 15, the movable seat 353 includes a nut seat 3531 and hinge rods 3532 rotatably connected to both sides of the nut seat 3531. The multilink mechanism 354 is a four-link mechanism with sequentially hinged links. The front end of the four-link mechanism is rotatably connected to the hinge rods 3532, and the rear end is connected to the base 31. The first end of each lifting rod 32 is connected to the hinge points of two of the links of the four-link mechanism. The circumferential rotation of the power member 34 is converted into axial movement of the nut seat 3531, which in turn rotates the hinge rod 3532 and the 4-link mechanism, thereby converting the movement of the two lifting rods 32 to move closer together or further apart. The transmission member 35 is not limited to the gear rack mechanism or multi-link mechanism shown in the above embodiment, but may also be a linear module, a chain mechanism, or the like.

[0060] As shown in Figure 18, the disclosure further provides a locker in which a robotic arm 2 is movably disposed. This locker has a top opening 20 and is equipped with a linear module 21 inside, which the robotic arm 2 drives to move the transfer mechanism 3 and the delivery bag 1 to the top opening 20, positioning the transfer mechanism 3 in the top opening so that it can be aligned with an approaching drone. This locker has all the beneficial effects of the transfer mechanism 3 described above, but the details are omitted here.

[0061] The robot arm 2 can be composed of multiple segments that form angles to drive the transfer mechanism 3 in different directions. The side of the base portion 31 connected to the robot arm 2, i.e., the side of the base portion 31 away from the lifting rod 32, is provided with a reduced diameter portion 313 to avoid interference and allow the robot arm 2 to pass through. In a second exemplary embodiment of this disclosure, taking into account potential interference between the transfer mechanism 3 and the robot arm 2, the size of a portion of the base portion 31 is reduced, for example, from a square design in Embodiment 1 to a cylindrical design in Embodiment 2, as shown in Figure 17. This reduction of the base portion 31 conforms to the principle of lightweight design, effectively avoids interference, and ensures that the robot arm 2 can move in various directions.

[0062] Next, this disclosure describes the structure of the drone's receiving end and handle 11, and how these two work together.

[0063] As shown in Figures 19-22, this disclosure provides a suspension mechanism 4 that can be attached to delivery entities such as drones, delivery vehicles, and robots, and can suspend various types of items. Specifically, the structure of the suspension mechanism 4 will be described in detail below, using the example of suspending the delivery bag 1 with handles 11 described above and the attachment of the suspension mechanism 4 to a drone.

[0064] The suspension mechanism 4 includes a base body 41, a locking piece 42, and a locking tongue 43. The base body 41 is detachably attached to the drone's airframe. A support base 411 is provided on the base body 41. The locking piece 42 is rotatably attached to the support base 411. The locking piece 42 has a first piece 421 and a second piece 422. One end of the first piece 421 and the second piece 422 are connected to each other, forming an angle. The first piece 421 rotates the second piece 422, forming a position-restricting space between it and a portion of the top of the base body 41. The handle 11 of the delivery bag 1 abuts against the first piece 421 and can smoothly enter the position-restricting space between the first piece 421 and the second piece 422. The locking tongue 43 is movably attached to the top of the base body 41 and is used to prevent or restore the rotation of the second piece 422.

[0065] The locking tongue 43 includes a housing 431 and a tongue piece 432. The tongue piece 432 is positioned below the housing 431 and is elastically connected to the housing 431. The tongue piece 432 has a first state in which it protrudes from the housing 431 and a second state in which it is at least partially retracted into the housing 431. When the locking piece 42 rotates to a position where a second piece 422 abuts against the locking tongue 432, the tongue piece 432 enters the second state, and the second piece 422 passes forward from the position of the tongue piece 432. When the locking piece 42 moves to a position that forms a position-restricting space, the tongue piece 432 enters the first state, preventing the second piece 422 from passing backward from the position of the tongue piece 432.

[0066] In the suspension mechanism 4 provided in this disclosure, the rotational driving force of the locking piece 42 is obtained from the handle 11 of the delivery bag 1. In other words, the handle 11 can be restricted in position and locked only when it moves to a predetermined position, thereby enabling accurate suspension and securing of the delivery bag 1, ensuring reliability after suspension and securing, and preventing the goods from falling during delivery.

[0067] Taking the embodiment shown in Figure 26 as an example, the delivery bag 1 is suspended from the transfer mechanism 3. The robotic arm 2 drives the transfer mechanism 3 and the delivery bag 1 to move toward the receiving end of the drone. After the handle 11 makes contact with the first piece 421, it continues to move forward, rotating the locking piece 42 counterclockwise. When it rotates until the second piece 422 abuts against the tongue piece 432, it compresses the tongue piece 432 so that it is partially pulled into the housing 431, thereby causing the second piece 422 to pass over the tongue piece 432. The handle 11 then enters the position-restricting space formed by the first piece 421, the second piece 422, and the base body 41. Due to the action of elastic restoring force, the tongue piece 432 automatically protrudes from the housing 431, locking the second piece 422 and preventing the locking piece 42 from rotating. This completes the receiving and locking operation of the drone toward the handle 11, resulting in the state shown in Figure 29. At this time, the robot arm 2 drives the transfer mechanism 3 forward, compressing the elastic member 33, expanding the gap 320 between the movable block 322 and the fixed block 321, and releasing the axial connection between the lifting rod 32 and the handle 11. The power member 34 drives the two lifting rods 32 closer together, detaches from the position limiting unit 111, and releases from the handle 11, handing over the delivery bag 1 to the drone, resulting in the state shown in Figures 27 and 28. The drone carries the delivery bag 1 to the delivery location, facilitating the transfer of goods between different buildings, different lockers, users, and sellers.

[0068] Conversely, the process by which the drone hands over the delivery bag 1 to the handover mechanism 3 is similar and will not be described again here. Alternatively, after the drone has carried the delivery bag 1 to the delivery location, it automatically opens the locking tab 43 and releases the handle 11, which causes the handle 11 to fall along the first guide surface 4110 (described later), dropping the delivery bag 1 into place and completing the automated delivery process.

[0069] As shown in Figures 23 and 24, the locking tongue 43 further includes a stop plate 433. The stop plate 433 is positioned on the side of the housing 431 away from the tongue piece 432 and is spaced apart from the tongue piece 432. The stop plate 433 is used to lock the second piece 422 between the stop plate 433 and the tongue piece 432. The height of the stop plate 433 is set so as not to affect the forward rotation of the first piece 421, and it restricts the position of the handle 11 and the second piece 422 when the handle 11 is in the position-restricting space, ensuring that the position of the handle 11 in the position-restricting space is fixed. This ensures that the drone is not affected while flying with the delivery bag 1 and ensures stability during flight.

[0070] The position of the second piece 422 between the tongue 432 and the stop plate 433 allows the locking tongue 43 to move away from the locking piece 42, releasing the rotational constraint of the second piece 422 by the tongue 432. In this disclosure, as shown in Figure 19, the handle 11 moves in the front-rear direction to enter the position-restricting space. The locking tongue 43 is positioned above the locking piece 42 and can move back and forth. The front-rear position of the locking tongue 43 remains fixed while the locking piece 42 rotates toward the position forming the position-restricting space. When it is necessary to release the handle 11, the locking tongue 43 moves backward, the locking piece 42 rotates clockwise, and the handle 11 automatically slides downward along the second piece 422 and the first guide surface 4110 described later.

[0071] As shown in Figure 22, the base body 41 is further provided with a drive member 44 for driving the locking tongue 43 in the front-rear direction. The drive member 44 may be a linear module or linear motor that can drive the entire locking tongue 43 to move back and forth. In this disclosure, as shown in Figure 25, the tongue piece 432 can protrude from or retract into the housing 431. A spring is provided inside the housing 431, one end of the tongue piece 432 is connected to the spring, and the other end protrudes outside the housing 431. If the drive unit 44 fails, the lock can be released by pushing the tongue piece 432 upward by hand. The locking end of the tongue piece 432 is designed as a hook structure. The locking end of the second piece 422 is formed to be wide in order to increase the contact area with the tongue piece 432 and to ensure the reliability of the locked position.

[0072] As shown in Figure 22, the suspension mechanism 4 further includes a suction member 46 for fixing the first piece 421. When the handle 11 is within the position-restricting space, the suction member 46 can be energized to suction and fix the first piece 421, preventing the rotating locking piece 42 from generating noise. When it is necessary to release the handle 11, the power to the suction member 46 is released to release the first piece 421.

[0073] As shown in Figures 19 and 20, the base body 41 has a support base 411 located in an intermediate position, and the locking piece 42 is rotatably attached to the support base 411. The support base 411 is provided with a first guide surface 4110. The handle 11 moves along the first guide surface 4110, allowing the locking piece 42 to rotate and enter the position-restricted space. Compared with drones that suspend items from both sides of the body, this disclosure employs a method of suspending a single handle in the center, which is easy to operate, highly reliable, has a high success rate for suspension and fixing, solves the problem of the swaying of the delivery bag 1 affecting the control of the drone, and ensures the stability of the drone while it is flying carrying the delivery bag 1. The first guide surface 4110 acts as a guide when the handle 11 moves toward the position-restricted space. When the locking tongue 43 releases the handle 11, the handle 11 can automatically slide down along the first guide surface 4110 due to the action of gravity, acting as a guide and buffer.

[0074] As shown in Figure 21, the suspension mechanism 4 provided in this disclosure further includes a connecting seat 45 connected to a base body 41. The connecting seat 45 has a main body connected to the base body and a guide portion 451 located outside the main body. Guide portions 451 are provided on both sides of the support base 411. The guide portions 451 on both sides have inclined second guide surfaces 4510 that gradually move inward. As shown in Figure 26, when the transfer mechanism 3 carrying the delivery bag 1 moves toward the suspension mechanism 4, as shown in Figure 29, the second guide surfaces 4510 on both sides are used to guide the transfer mechanism 3 suspending the delivery bag 1 toward the support base 411, quickly locating the locking piece 42 and ensuring a smooth and rapid completion of the transfer operation.

[0075] As shown in Figure 27, the distance between the guide sections 451 on both sides is greater than the length D1 of the handle 11. The handle 11 can be positioned in the space between the guide sections 451 on both sides and received by the drone receiving end.

[0076] This disclosure further provides a drone equipped with the suspension mechanism described above on its airframe. The suspension mechanism 4 is detachably attached to the airframe of the drone. This drone has all the beneficial effects of the drone suspension mechanism 4, but these will not be described in further detail here. Naturally, the suspension mechanism 4 can be installed in any location where it is necessary to suspend the delivery bag 1, such as an airplane or a car, but this disclosure is not limited thereto.

[0077] Next, as shown in Figure 29, the present disclosure provides a cargo delivery system including the delivery bag 1, cargo delivery mechanism 3, and drone suspension mechanism 4. The delivery bag 1, equipped with a handle 11, is transferable between the cargo delivery mechanism 3 and the drone suspension mechanism 4. For example, when delivery is made between a user and a seller, the seller places the packaged meal bag in a locker storage space and receives a delivery instruction. The robotic arm 2 then moves the delivery mechanism 3 to the storage space (acquiring the position of the positioning hole 113 of the handle 11 via the camera module 38 and determining whether it has moved to the predetermined position). The two lifting rods 32 of the delivery mechanism 3 extend into the lifting hole 1101 of the handle 11, move away from each other and enter the position limiting sections 111 on both sides, respectively, and are locked and fixed by the movable block 322 and the fixed block 321, completing the delivery mechanism 3's operation of receiving the meal bag. The robotic arm 2 moves the transfer mechanism 3 and the meal bag to the top opening of the locker, where it aligns with the drone arriving on the upper landing platform. During this process, the second guide surface 4510 can act as a guide to move to the support base 411. The robotic arm 2 continues to advance the transfer mechanism 3 and the meal bag until the handle 11 contacts the first piece 421, rotates the second piece 422, compresses the second piece 422, passes over the tongue 432, the handle 11 enters the positional limiting space between the first piece 421 and the second piece 422, the tongue 432 protrudes from the housing 431, locks the handle 11 by engaging the second piece 422, and the drone suspension mechanism 4 completes the receiving operation of the meal bag. At this time, the transfer mechanism 3 moves forward, compressing the elastic member 33, increasing the distance between the movable block 322 and the fixed block 321, causing the lifting rod 32 to detach from the position limiting part 111, and the two lifting rods 32 to move closer to each other and detach from the handle, completing the transfer operation. At this point, after the drone has arrived at the delivery location carrying the meal bag, the locking tongue 43 moves backward to open the locking piece 42, and the handle 11 automatically slides down along the first guide surface 4110, completing the delivery process.

[0078] Naturally, the drone can transfer the food bags to a delivery mechanism in the user's apartment complex food locker, store them in a designated storage space, and allow the user to retrieve them. This cargo delivery system incorporates all the beneficial effects of the aforementioned handle 11, delivery bag 1, delivery mechanism 3, and suspension mechanism 4, and therefore will not be repeated here. This cargo delivery system completes the automated cargo delivery process, enabling automated cargo delivery with more reliable delivery operations and a simple structure. It also improves cargo loading efficiency, ensures loading reliability, avoids the impact of food box sway on drone control, and enhances the user experience. The standardized design of the handle 11 allows it to simultaneously meet the requirements of the delivery mechanism 3 and suspension mechanism 4. The delivery bag 1 is highly producible in large quantities, easy to process, lightweight, low-cost, compact, and highly reusable, meeting the diverse cargo delivery needs in drone delivery scenarios.

[0079] Preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the embodiments described above. Within the scope of the technical idea of ​​the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and all such simple modifications are covered within the scope of the present disclosure.

[0080] Furthermore, the various specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary duplication, this disclosure does not describe various possible combinations individually.

[0081] Furthermore, various different embodiments of this disclosure may be combined in any way that does not contradict the spirit of this disclosure, and such combinations should also be considered as part of the disclosure. [Explanation of Symbols]

[0082] 1. Delivery bag, 10. Bag body, 101. First opening edge, 1011. First opening, 102. Second opening edge, 1021. Second opening, 103. Stepped section, 104. Fold, 11. Handle, 110. Main body section, 1101. Lifting hole, 111. Position limiting section, 1111. Recess, 1112. Opening, 112. Fixing section, 113. Positioning hole, 114. Reinforcement member, 115. Reinforcement rib, 12, Liner, 121, Bottom plate, 122, Foldable edge, 13, First adhesive part, 14, Second adhesive part, 2, Robot arm, 20, Top opening, 21, Linear module, 3, Transfer mechanism, 31, Base part, 311, First sliding groove, 312, Second sliding groove, 313, Reduced diameter part, 32, Lifting rod, 320, Gap, 321, Fixing block, 3211, First gap Side slope, 322, movable block, 3221, second guide slope, 323, stopper section, 324, straight section, 325, outer extension section, 33, elastic member, 34, power member, 35, transmission member, 351, gear, 352, rack, 353, movable seat, 3531, nut seat, 3532, hinge rod, 354, multi-link mechanism, 36, guide rail, 37, slider, 38, camera module, 4, suspension mechanism, 41, base body, 411, support base, 4110, first guide surface, 42, lock piece, 421, first piece section, 422, second piece section, 43, lock tongue, 431, housing, 432, tongue piece, 433, stop plate, 44, drive member, 45, connecting seat, 451, guide section, 4510, second guide surface, 46, suction member.

Claims

1. A handle, wherein the handle has a main body portion with a lifting hole through which a lifting portion passes, and the inner wall of the lifting hole is provided with a position limiting portion having a recess and an opening that is opened toward the interior of the lifting hole, the recess is used to limit the position of the lifting portion in the circumferential direction, and the lifting portion is able to pass through the opening and exit the opening.

2. The handle according to claim 1, comprising two fixed arms and a connecting arm connecting the two fixed arms, wherein both the two fixed arms and the connecting arm form the lifting holes, and the position limiting portion is provided at the position where the two fixed arms and the connecting arm are connected, and the openings of the two position limiting portions are arranged facing each other.

3. The handle according to claim 1, characterized in that the handle is fixed to the packaging bag by passing through an assembly hole in the packaging bag, the handle is further provided with a fixing portion for fixing and connecting to the packaging bag, the fixing portion is connected to one side of the main body, and together with the main body, forms the closed lifting hole.

4. The handle according to claim 3, characterized in that an adhesive layer is provided on the surface of the fixing part facing the main body, and the fixing part is fixed to the packaging bag via the adhesive layer when the main body passes through the assembly hole.

5. The handle according to claim 3, further comprising a reinforcing member fixed to the side of the fixing portion away from the main body portion, wherein both ends of the reinforcing member extend beyond the fixing portion in the longitudinal direction.

6. The handle according to claim 5, characterized in that at least one of the main body and the reinforcing member is provided with a plurality of reinforcing ribs, the plurality of reinforcing ribs are arranged at an angle to each other, and the region between two adjacent reinforcing ribs becomes a weight reduction region.

7. The handle according to claim 1, characterized in that a positioning hole is provided at a position close to the position limiting portion of the handle.

8. The handle according to claim 1, characterized in that the size of the lifting hole in the longitudinal direction is D1, and the size of the lifting hole in the height direction is D2, where 80 mm ≤ D1 ≤ 95 mm and 30 mm ≤ D2 ≤ 40 mm.

9. The handle according to claim 6, characterized in that the length of the reinforcing member is D3, where 200 mm ≤ D3 ≤ 300 mm.

10. A packaging bag comprising a bag body and a handle provided on the bag body, wherein the handle is a handle according to any one of claims 1 to 9.

Images