Multilayer traceable combined logistics appliance

Abstract

The invention provides a multilayer traceable combined logistics appliance, and relates to the technical field of logistics appliances. The appliance comprises a frame body; the limiting assemblies comprise the water pump limiting assembly and the engine oil cooler limiting assembly, the water pump limiting assembly and the engine oil cooler limiting assembly are arranged in the frame body and are adjacently arranged, the water pump limiting assembly is used for limiting a water pump, and the engine oil cooler limiting assembly is used for limiting an engine oil cooler; wherein the frame body is provided with a label installation position, the label installation position is used for arranging an RFID label, and the problems that in the prior art, logistics appliances are poor in universality, and visualization of the material state cannot be achieved are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics equipment, and in particular to a multi-layer traceable combined logistics equipment. Background Art

[0002] With the development of modern logistics and Internet of Things technology, logistics equipment is an indispensable key link in ensuring the stability and punctuality of the logistics distribution process. However, there are certain problems with existing logistics equipment, such as the inability to visualize the in-transit status of order materials carried by the equipment, the inability to ensure the consistency of material distribution according to the production process, and the inability to ensure the versatility of multi-platform material equipment. These problems greatly affect the timeliness of material distribution, increase logistics costs, and hide the risk of production lines being disconnected due to logistics links. Summary of the invention

[0003] The main purpose of the present invention is to provide a multi-layer traceable combined logistics equipment to solve the problems of poor versatility of logistics equipment in the prior art and inability to realize visualization of material status.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a multi-layer traceable combined logistics appliance is provided. The multi-layer traceable combined logistics appliance comprises: a frame; a limit assembly, wherein the limit assembly is provided in multiple numbers, and the limit assembly comprises a water pump limit assembly and an oil cooler limit assembly, wherein the water pump limit assembly and the oil cooler limit assembly are provided in the frame and are provided adjacently, wherein the water pump limit assembly is used to limit the water pump, and the oil cooler limit assembly is used to limit the oil cooler; wherein a label installation position is provided on the frame, and the label installation position is used to set an RFID label.

[0005] Furthermore, a plurality of support plates are arranged in the frame, and the plurality of support plates are arranged at intervals along the height direction of the frame, and a water pump limiting assembly and an oil cooler limiting assembly are arranged on each support plate.

[0006] Furthermore, one end of at least one support plate among the plurality of support plates is movably arranged.

[0007] Furthermore, the frame has an opening, and a hinge is provided on one side of the opening, and the multiple support plates include: a first support plate, the first support plate is connected to the frame, and a water pump limit assembly and an oil cooler limit assembly are installed on the first support plate; a second support plate, the second support plate is connected to the frame, and a water pump limit assembly and an oil cooler limit assembly are installed on the second support plate, the second support plate is arranged above the first support plate, and one end of the second support plate facing the opening is movably connected to the hinge.

[0008] Furthermore, the multi-layer traceable combined logistics equipment includes: a lifting assembly, the lifting assembly is connected to the second support plate, and the lifting assembly is operated to drive the second support plate to rotate toward one end of the opening around an end of the second support plate away from the opening by a preset angle.

[0009] Furthermore, the lifting assembly includes: a gas spring rod, one end of which is connected to the bottom of the second support plate, and the other end of which is connected to the frame; a handle, which is arranged on the side of the second support plate facing the opening, and the handle is operated to drive the end of the second support plate facing the opening to rotate around the end of the second support plate away from the opening at a preset angle under the action of the gas spring rod.

[0010] Furthermore, the water pump limit assembly comprises: a first positioning block, which is circular and has a plurality of grooves arranged at intervals; and a second positioning block, which is arranged adjacent to the first positioning block and has an arc-shaped groove.

[0011] Furthermore, the oil cooler limiting assembly includes a plurality of limiting blocks, and the plurality of limiting blocks are arranged at intervals.

[0012] Furthermore, a plurality of parts boxes are arranged on the support plate, and the plurality of parts boxes are arranged adjacent to the water pump limit assembly and the oil cooler limit assembly.

[0013] Furthermore, at least two label installation positions are provided, wherein one label installation position is provided at the outer bottom of the frame, and the other label installation position is provided on the side wall of the frame.

[0014] By applying the technical solution of the present invention, a frame is provided to provide a limiting space, a water pump limiting assembly is provided to limit the water pump, and an oil cooler limiting assembly is provided to limit the oil cooler, so that the setting of the limiting assembly not only limits the position of the material, prevents movement and collision during transportation, and ensures the safety of the material, but also through the reasonable layout of the water pump limiting assembly and the oil cooler limiting assembly, the logistics equipment can be suitable for materials of different models or specifications, thereby improving the versatility of the logistics equipment and the flexibility of the production line. The label installation position on the frame is used to set an RFID tag, which enables each logistics equipment to be uniquely identified. Through RFID technology, the position and status of the logistics equipment can be tracked in real time, thereby realizing material tracking from production to distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1It shows a schematic structural diagram of a multi-layer traceable combined logistics apparatus according to the present invention;

[0017] Figure 2 A schematic diagram of the top view of the structure of the multi-layer traceable combined logistics device according to the present invention is shown;

[0018] Figure 3 A schematic side view of the structure of a multi-layer traceable combined logistics device according to the present invention is shown;

[0019] Figure 4 A front view structural schematic diagram of a multi-layer traceable combined logistics device according to the present invention is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. Frame;

[0022] 11. Label installation position;

[0023] 20. Limiting assembly;

[0024] 21. Water pump limit assembly;

[0025] 211, first positioning block;

[0026] 212, second positioning block;

[0027] 22. Oil cooler limit assembly;

[0028] 23. Support plate;

[0029] 231, first support plate;

[0030] 232, second support plate;

[0031] 30. Lifting assembly;

[0032] 31. Gas spring rod;

[0033] 32. Handle;

[0034] 40. Parts box. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0038] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0039] Combination Figures 1 to 4 As shown, according to a specific embodiment of the present invention, a multi-layer traceable combined logistics device is provided.

[0040] Specifically, Figure 1 As shown, the multi-layer traceable combined logistics device includes: a frame 10; a limit assembly 20, wherein the limit assembly 20 is arranged in plurality, and the limit assembly 20 includes a water pump limit assembly 21 and an oil cooler limit assembly 22, the water pump limit assembly 21 and the oil cooler limit assembly 22 are arranged in the frame 10 and are arranged adjacent to each other, the water pump limit assembly 21 is used to limit the water pump, and the oil cooler limit assembly 22 is used to limit the oil cooler; wherein a label installation position 11 is provided on the frame 10, and the label installation position 11 is used to set an RFID label.

[0041] In this embodiment, a frame 10 is provided to provide a limiting space, a water pump limiting assembly 21 is provided to limit the water pump, and an oil cooler limiting assembly 22 is provided to limit the oil cooler, so that the setting of the limiting assembly 20 not only limits the position of the material, prevents movement and collision during transportation, and ensures the safety of the material, but also through the reasonable layout of the water pump limiting assembly 21 and the oil cooler limiting assembly 22, the logistics equipment can be suitable for materials of different models or specifications, thereby improving the versatility of the logistics equipment and the flexibility of the production line. The label installation position 11 on the frame 10 is used to set an RFID tag, which enables each logistics equipment to be uniquely identified. Through RFID technology, the position and status of the logistics equipment can be tracked in real time, realizing material tracking from production to distribution.

[0042] Furthermore, a plurality of support plates 23 are disposed in the frame 10 . The plurality of support plates 23 are disposed at intervals along the height direction of the frame 10 . A water pump limiting assembly 21 and an oil cooler limiting assembly 22 are disposed on each support plate 23 .

[0043] Specifically, the arrangement of multiple support plates 23 enables the logistics apparatus to achieve multi-layer storage within a limited floor space, greatly increasing the material carrying capacity per unit area. The spacing of the support plates 23 can be adjusted according to the type and quantity of the material actually loaded, so that the logistics apparatus can adapt to materials of different sizes and weights, enhancing the flexibility and versatility of the apparatus. By replacing or adjusting the limiter assembly, the changes in the material requirements of the production line or warehouse can be adapted without changing the main structure of the frame 10.

[0044] Furthermore, one end of at least one supporting plate 23 among the plurality of supporting plates 23 is movably disposed.

[0045] Specifically, the design of the movable support plate enables the logistics equipment to adapt to different usage scenarios. For example, when more space is needed to carry large materials at a certain stage, the movable support plate can be folded up to provide a larger loading area for the lower or upper layers. At other stages, when additional storage points are needed, the support plate can be lowered to form additional layers to adapt to changing logistics needs.

[0046] Furthermore, the frame 10 has an opening, and a hinge is provided on one side of the opening of the frame 10, and the multiple support plates 23 include: a first support plate 231, the first support plate 231 is connected to the frame 10, and the water pump limit assembly 21 and the oil cooler limit assembly 22 are installed on the first support plate 231; a second support plate 232, the second support plate 232 is connected to the frame 10, and the water pump limit assembly 21 and the oil cooler limit assembly 22 are installed on the second support plate 232, the second support plate 232 is arranged above the first support plate 231, and the second support plate 232 is movably connected to the hinge at one end facing the opening.

[0047] Specifically, the design of the opening and the hinge allows the second support plate 232 to be opened to one side when needed, which improves the convenience of the operator to access the internal materials. The mobility of the second support plate 232 enables the logistics equipment to be adjusted according to different needs and space limitations. For example, when it is necessary to carry water pump and oil cooler materials, the second support plate 232 can be rotated to a preset angle to facilitate the access and transportation of materials; when it is necessary to increase the storage capacity, the second support plate 232 can be restored to a state of being horizontal with the first support plate 231 to form a storage plane.

[0048] Furthermore, the multi-layer traceable combined logistics equipment includes: a lifting assembly 30, which is connected to the second support plate 232. The lifting assembly 30 is operated to drive the second support plate 232 to rotate toward one end of the opening around the end of the second support plate 232 away from the opening by a preset angle.

[0049] Specifically, by rotating the second support plate 232, the operating surface for storing and retrieving materials can be quickly adjusted without moving the entire logistics equipment or using additional lifting equipment. Especially when storing and retrieving materials located at a higher level, this design can greatly improve operating efficiency, reduce waiting time, and speed up the material flow speed of the production line.

[0050] In some optional embodiments, the lifting assembly 30 can be designed to be electric or pneumatic, and remotely controlled by a logistics execution system or a PDA device to achieve automatic operation of the support plate. This not only reduces the need for manual intervention and reduces the error rate of operation, but also improves the integration of logistics equipment in intelligent warehouses or production lines, and enhances the ability to work in coordination with automated equipment (such as AGV, robotic arms).

[0051] Furthermore, the lifting assembly 30 includes: a gas spring rod 31, one end of which is connected to the bottom of the second support plate 232, and the other end of which is connected to the frame 10; a handle 32, which is arranged on the side of the second support plate 232 facing the opening. The handle 32 is operated to drive the end of the second support plate 232 facing the opening to rotate around the end of the second support plate 232 away from the opening at a preset angle under the action of the gas spring rod 31.

[0052] Specifically, the combination of the handle 32 and the gas spring rod 31 allows the operator to quickly adjust the second support plate 232 with less force, without waiting for the response time of the electric or hydraulic device, and can directly open or close the support plate manually, making the material loading and unloading process more efficient and reducing the waiting time for material processing in the production line or warehouse. Compared with electric or hydraulic lifting components, the gas spring rod 31 is lower in cost and simpler to maintain, reducing the operation and maintenance costs of the equipment. At the same time, the manual operation of the handle 32 does not require additional energy consumption, further reducing the overall cost of logistics operations.

[0053] Furthermore, the water pump limit assembly 21 comprises: a first positioning block 211, which is circular and has a plurality of grooves arranged at intervals; and a second positioning block 212, which is arranged adjacent to the first positioning block 211 and has an arc-shaped groove.

[0054] Specifically, the circular first positioning block 211 and the second positioning block 212 with the arc-shaped groove can accurately match the shape of the water pump, and provide multi-point support through the contact between the groove and the water pump, thereby ensuring the stable positioning of the water pump inside the logistics equipment and avoiding displacement or damage during transportation.

[0055] Furthermore, the oil cooler limiting assembly 22 includes a plurality of limiting blocks, and the plurality of limiting blocks are arranged at intervals.

[0056] Specifically, a plurality of limit blocks can limit the oil cooler at multiple locations, thereby ensuring the stable positioning of the oil cooler inside the logistics equipment and avoiding displacement or damage during transportation.

[0057] Furthermore, a plurality of parts boxes 40 are disposed on the support plate 23, and the plurality of parts boxes 40 are disposed adjacent to the water pump limit assembly 21 and the oil cooler limit assembly 22. The parts boxes 40 are used to store parts.

[0058] Furthermore, at least two label installation positions 11 are provided, wherein one label installation position 11 is provided at the outer bottom of the frame 10 , and the other label installation position 11 is provided on the side wall of the frame 10 .

[0059] Specifically, the labels are installed on the bottom and side walls to ensure that no matter what position or angle the logistics equipment is in, the labels can be identified by reading devices (such as RFID readers, QR code scanners), thereby improving the reliability and accuracy of material tracking. Even when the logistics equipment is stacked or tilted, the readability of the information can be guaranteed. The label installation position 11 at the bottom faces the detectable distance of the AGV camera module, while the label on the side wall faces the recognition distance of the roller camera module. This layout takes into account the optimal working range of different reading devices, reduces the possibility of reading failure, and ensures the efficient collection of logistics information. The labels on the bottom and side walls provide the logistics execution system with a variety of ways to identify logistics equipment. Whether it is transported by AGV in the warehouse or delivered by rollers at the entrance of the production line, the logistics equipment can be accurately identified, which improves the flexibility and automation level of logistics operations.

[0060] According to another aspect of the present invention, a device design scheme is provided, wherein the overall frame of the device is welded by angle iron and square tube steel, the device size is 1200*1000*1202 (mm), the overall structure is two layers + bottom bracket, the bottom and top layers are provided with 6DV, 6DM water pump polyurethane A95 positioning blocks on the lower left side and the left middle side, the lower right side and the right middle side hollow frame are provided with 6DV, 6DM oil cooler polyurethane A95 positioning blocks, the upper side is provided with left and right set parts boxes, the positioning blocks are fixed to the layers and the frames by various types of hexagon socket head screws and hexagonal locking nuts, the top movable layer is connected to the frame by a gas pressure spring rod (with self-locking), the overall opening angle is 60%, and the upper edge of the movable layer does not exceed 1200 (mm) when opened, and a handle is provided to facilitate the safe operation of the operator, ensure the stability of the center of gravity of the parts and the center of gravity of the device, and protect the materials to the greatest extent;

[0061] According to another aspect of the present invention, a tool traceability solution is provided. A 10*10 label slot is configured on both sides of the middle of the short side of the tool base and a 10*10*10 label slot is configured in the middle of the base. RFID or QR code tags are placed. The logistics execution system generates a document recording assembly information and material information according to the plan. The operator binds the document with the tool label through the PDA and ships the tool. At this time, the tool is in the shipping state. When the tool is placed on the factory roller, the roller recognizes the QR code through the camera module, triggers the feeding action, and the logistics execution system changes the tool. The status of the waybill belongs to. When the equipment flows to the roller exit, the entry action is triggered. The logistics execution system changes the status of the document bound to the equipment, and the handling task is triggered. The AGV recognizes the QR code of the equipment to complete the equipment entry and handling task. At this time, the logistics execution system records the equipment location and the logistics location bound to the equipment. The line side generates a material return signal, and the system changes the status of the information carried by the equipment in sequence until the order is completed. In this process, the location of the equipment and the recorded inventory information are traceable throughout the process, and it serves as an important part of actual transportation and system interaction.

[0062] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0063] ① Stable structure. In order to ensure that there is no material in the stable state during the transportation of the equipment, the overall frame is welded with angle irons, and the long and short sides of the equipment base are hollowed out to facilitate process vehicles and ground bulls to enter the fork, and the lifting area is consistent with the fork surface lifting; the bottom and top layers are on the lower left and left middle sides for the water pump limit blocks, and on the lower right and right middle sides for the oil cooler limit blocks (to meet the center of gravity of the oil cooling parts of the 6DV and 6DM dual-platform models and the reasonable distribution of layer heights). The layer plate cutting hollow frame design is adopted (the top view of the equipment is used as the description perspective), and the upper side is the left and right arranged parts boxes. This design keeps the center of gravity of the equipment at the geometric center and improves the stability of the logistics equipment.

[0064] ② The triple guarantee of production and equipment versatility and safety, as described above, is to ensure the production and logistics process and to ensure that the equipment makes maximum use of space. The double-layer design ensures that four oil coolers can be placed for packaging and material distribution to meet the production rhythm. The top movable layer lifting design has a safety handle and a gas spring rod (with self-locking), which retains a safe distance between the balance crane and logistics, facilitating the operation of line-side packaging personnel while also ensuring safety.

[0065] ③The whole process of equipment production can be traced. A 10*10*10 cubic space is designed in the middle of the equipment base, with a built-in equipment RFID or QR code tag. This design solution allows the AGV camera module to identify the best angle and distance. A 10*10 flat plate slot is designed in the middle of both sides of the short side of the base, also with a built-in equipment RFID or QR code tag. This design solution allows the factory roller module to identify the best angle and distance. In combination with PDA and logistics execution system, the material information, transportation status information, and self-positioning information in the equipment can be visualized throughout the process.

[0066] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0067] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0068] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-layer traceable combined logistics device, characterized in that: include: Frame (10); A limit assembly (20), wherein the limit assembly (20) is arranged in a plurality, the limit assembly (20) comprising a water pump limit assembly (21) and an oil cooler limit assembly (22), the water pump limit assembly (21) and the oil cooler limit assembly (22) being arranged in the frame (10) and adjacent to each other, the water pump limit assembly (21) being used for limiting the water pump, and the oil cooler limit assembly (22) being used for limiting the oil cooler; Wherein, a label installation position (11) is provided on the frame (10), and the label installation position (11) is used to set an RFID label.

2. The multi-layer traceable combined logistics device according to claim 1, characterized in that: A plurality of support plates (23) are arranged in the frame (10), and the plurality of support plates (23) are arranged at intervals along the height direction of the frame (10), and each of the support plates (23) is provided with the water pump limit assembly (21) and the oil cooler limit assembly (22).

3. The multi-layer traceable combined logistics device according to claim 2, characterized in that: One end of at least one of the plurality of support plates (23) is movably arranged.

4. The multi-layer traceable combined logistics device according to claim 3, characterized in that: The frame (10) has an opening, and a hinge is provided on one side of the frame (10) having the opening. The plurality of support plates (23) include: A first support plate (231), the first support plate (231) being connected to the frame (10), and the water pump limiting assembly (21) and the oil cooler limiting assembly (22) being mounted on the first support plate (231); A second support plate (232), the second support plate (232) is connected to the frame (10), the water pump limit assembly (21) and the oil cooler limit assembly (22) are installed on the second support plate (232), the second support plate (232) is arranged above the first support plate (231), and one end of the second support plate (232) facing the opening is movably connected to the hinge.

5. The multi-layer traceable combined logistics device according to claim 4, characterized in that: The multi-layer traceable combined logistics apparatus comprises: A lifting assembly (30) is connected to the second support plate (232), and the lifting assembly (30) is operated to drive the second support plate (232) to rotate toward one end of the opening and around one end of the second support plate (232) away from the opening by a preset angle.

6. The multi-layer traceable combined logistics device according to claim 5, characterized in that: The lifting assembly (30) comprises: A gas pressure spring rod (31), one end of the gas pressure spring rod (31) is connected to the bottom of the second support plate (232), and the other end of the gas pressure spring rod (31) is connected to the frame (10); A handle (32), wherein the handle (32) is arranged on a side of the second support plate (232) facing the opening, and the handle (32) is operated to drive the end of the second support plate (232) facing the opening to rotate around the end of the second support plate (232) away from the opening by the preset angle under the action of the gas pressure spring rod (31).

7. The multi-layer traceable combined logistics device according to claim 1, characterized in that: The water pump limiting assembly (21) comprises: A first positioning block (211), the first positioning block (211) is circular, and the first positioning block (211) is provided with a plurality of grooves arranged at intervals; A second positioning block (212), wherein the second positioning block (212) is arranged adjacent to the first positioning block (211), and an arc-shaped groove is provided on the second positioning block (212).

8. The multi-layer traceable combined logistics device according to claim 3, characterized in that: The oil cooler limiting assembly (22) comprises a plurality of limiting blocks, and the plurality of limiting blocks are arranged at intervals.

9. The multi-layer traceable combined logistics device according to claim 2, characterized in that: A plurality of parts boxes (40) are arranged on the support plate (23), and the plurality of parts boxes (40) are arranged adjacent to the water pump limit assembly (21) and the oil cooler limit assembly (22).

10. The multi-layer traceable combined logistics device according to claim 6, characterized in that: The number of the label installation positions (11) is at least two, wherein one of the label installation positions (11) is arranged on the outer bottom of the frame (10), and the other of the label installation positions (11) is arranged on the side wall of the frame (10).

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