A conveying device for thawing frozen meat

Abstract

The application provides a kind of frozen meat thawing conveying device, belongs to frozen meat conveying technical field, comprising: transfer frame, its bottom is equipped with two groups of first roller, two groups of first roller are equipped in a pair of U-shaped slide rail, one end of a pair of U-shaped slide rail is connected with the fixed end of a first push mechanism by a connecting rod, and the bottom of transfer frame is connected with the telescopic end of first push mechanism;A pair of lifting mechanisms are arranged on both sides of a pair of U-shaped slide rails, the telescopic end of a pair of lifting mechanisms is connected with a plurality of first vertical rods through a cross bar, the top of a plurality of first vertical rods is connected with the same fixed rod, a second vertical rod is arranged at both ends of fixed rod, a same hinged rod is arranged on two second vertical rods and a plurality of first vertical rods, and both ends of hinged rod are rotatably connected with a pair of rotating rods;A plurality of thawing frames are rotatably connected with hinged rod through first connecting block on one side, and are synchronously rotatably arranged.The device can automatically pour out the thawed frozen meat in thawing pool, improve efficiency and reduce manual operation.

Description

Technical Field

[0001] This invention belongs to the field of frozen meat conveying technology, and is particularly related to a conveying device for thawing frozen meat. Background Technology

[0002] Frozen meat refers to poultry and livestock that have been slaughtered, pre-cooled and de-acidified, flash-frozen, and then stored at temperatures below -18 degrees Celsius, with the deep meat temperature reaching below -6 degrees Celsius. Food processing plants need to thaw frozen meat before processing it. One method is to directly place the frozen meat in air at a certain temperature, but this method has a slow heat transfer rate and low efficiency. Another method is to place the frozen meat in a temperature-controlled thawing tank. This method has a relatively higher thawing efficiency, but it requires manual lifting of the crate containing the frozen meat above the thawing tank, pouring the meat into the tank, and then removing the meat from the tank and transferring it to the subsequent processing area. The entire process of manual loading and unloading is time-consuming and labor-intensive, affecting thawing efficiency. Therefore, improvements are necessary. Summary of the Invention

[0003] To address the aforementioned deficiencies in the prior art, this application provides a conveying device for thawing frozen meat, which can automatically pour out thawed frozen meat from the thawing pool, thereby improving efficiency and reducing manual operation.

[0004] To achieve the above objectives, the present invention employs the following techniques:

[0005] A conveying device for thawing frozen meat includes: a transfer frame with two sets of first rollers at its bottom, the two sets of first rollers being mounted on a pair of U-shaped slide rails, one end of the pair of U-shaped slide rails being connected to the fixed end of a first pushing mechanism via a connecting rod, the transfer frame being connected to the telescopic end of the first pushing mechanism, and a thawing water tank being provided inside the transfer frame;

[0006] A pair of lifting mechanisms are located on both sides of a pair of U-shaped slide rails. The telescopic ends of the pair of lifting mechanisms are connected to the same side of multiple first vertical rods through a crossbar. The tops of the multiple first vertical rods are connected to the same fixed rod. A second vertical rod is provided at both ends of the fixed rod. The same hinge rod is passed through the two second vertical rods and the multiple first vertical rods. The two ends of the hinge rod are rotatably connected to a pair of rotating rods. A first push rod is connected between the bottoms of the pair of rotating rods.

[0007] Multiple defrosting frames, the top of one side of each frame is rotatably connected to a hinge rod via a first connecting block, and the bottom of one side of each frame is connected to a first push rod via a second connecting block.

[0008] A pair of second pushing mechanisms have their telescopic ends hinged to the top of a pair of rotating rods. The top of each of the two second vertical rods is vertically connected to a mounting rod on the side away from the defrosting frame. The fixed ends of the pair of second pushing mechanisms are hinged to the outer ends of the two mounting rods away from the second vertical rods. When the telescopic ends of the second pushing mechanisms are fully retracted, the rotating rods are in a vertical state. When the telescopic ends of the second pushing mechanisms are fully extended, the top of the rotating rods rotates towards the transfer frame by a preset angle.

[0009] Furthermore, the conveying device for thawing frozen meat also includes a conveyor belt, which includes interconnected horizontal sections and downwardly inclined sections. The horizontal sections are spaced above the transfer frame. Multiple first baffles are arranged in an array along the length direction of the conveyor belt, parallel to the width direction of the conveyor belt. Multiple feeding frames are arranged along the conveying direction of the conveyor belt. The first baffles are used to push the feeding frames to move.

[0010] Furthermore, the distance between the outer sides of adjacent first baffles is greater than the distance between adjacent defrosting frames, the bottom width of the feeding frame matches the width between adjacent first baffles, and the distance between adjacent feeding frames matches the distance between the outer sides of two adjacent first baffles.

[0011] Furthermore, a second baffle is provided on the side of the conveyor belt away from the connecting rod. The top of the second baffle is connected to a round rod whose length direction is parallel to the length direction of the conveyor belt through a connecting plate. The top of the feeding frame near the second baffle is provided with an inverted U-shaped limiting strip, and the round rod is inside the limiting strip.

[0012] Furthermore, the end of the feeding frame near the second baffle is an inclined surface that slopes upward toward the second baffle.

[0013] Furthermore, a portion of the second baffle on one side of the horizontal section has multiple through slots along its length. A connecting shaft is provided in the through slot along the length of the horizontal section, and a second push rod is rotatably connected to the connecting shaft. The two ends of the second push rod extend out from both sides of the second baffle. A waist-shaped groove is provided at the end of the second push rod away from the feeding frame. A connecting column passes through the waist-shaped groove. The connecting column is connected to the telescopic end of a third pushing mechanism through a fixed seat. The third pushing mechanism is vertically fixed to the outside of the second baffle. When the feeding frame moves to align with the through slot and the telescopic end of the third pushing mechanism is fully retracted, the feeding frame rotates upward around a portion of the round rod above the horizontal section until the inclined surface is tilted downward toward the thawing frame.

[0014] Furthermore, the top of the connecting plate on one side of the horizontal section has multiple strip-shaped notches extending downwards along the length direction. These multiple strip-shaped notches are aligned with multiple thawing frames, and the length of the strip-shaped notches is greater than the length of the limiting strip.

[0015] Furthermore, the second push rod is connected to a mounting base at one end near the feeding frame, and a circular push column is rotatably connected inside the mounting base. The length direction of the push column is parallel to the length direction of the horizontal section, and it is used to push the feeding frame.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. During thawing, the frozen meat is placed into multiple thawing frames. The lifting mechanism can drive the thawing frames into the thawing pool for thawing. After thawing is completed, the lifting mechanism is controlled to lift the multiple thawing frames. Then, through the cooperation of the first and second pushing mechanisms, the thawed frozen meat in the thawing pool can be automatically poured out, realizing automatic feeding and effectively reducing manual operation.

[0018] 2. When the conveyor belt lifts the feeding frame above the thawing frame to unload the frozen meat, the round rod provides support for the limit bar. Pushing the feeding frame upward around the corresponding round rod will unload the frozen meat. Furthermore, through the cooperation of the third pushing mechanism and the second push rod, the feeding frame can be automatically pushed upward to unload the frozen meat, thus achieving automatic feeding and effectively improving the automation level of frozen meat thawing. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural view of the device according to an embodiment of this application.

[0020] Figure 2 This is a partial three-dimensional view of the device according to an embodiment of this application.

[0021] Figure 3 This is a perspective view of a portion of the structure of the device according to an embodiment of this application.

[0022] Figure 4 for Figure 3 Enlarged view of section A in the middle.

[0023] Figure 5 This is a perspective view of the structure of the device according to an embodiment of this application after the conveyor belt is installed.

[0024] Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0025] Figure 7 This is a side view of a portion of the structure of the conveyor belt in the device according to an embodiment of this application.

[0026] Figure 8 This is a structural perspective view of the device according to an embodiment of this application after the conveyor belt has been installed.

[0027] Figure 9 for Figure 8 Enlarged view of section C.

[0028] Figure 10 This is a front view of a portion of the structure of the device according to an embodiment of this application after the conveyor belt has been installed.

[0029] Reference numerals: Transfer frame-1, U-shaped slide rail-2, thawing water tank-3, first conveying mechanism-4, thawing frame-5, crossbar-6, lifting mechanism-7, second pushing mechanism-8, conveyor belt-9, feeding frame-10, second baffle-11, round rod-12, third pushing mechanism-13, second push rod-14, mounting base-1501, first roller-101, first pushing mechanism-102, connecting rod-201, receiving frame-401, second roller-402, second conveying mechanism-403, hinge rod- 501, First vertical rod - 601, Second vertical rod - 602, Mounting rod - 603, Diagonal support rod - 604, Fixing rod - 605, Rotating rod - 801, First push rod - 802, Inclined section - 901, Horizontal section - 902, First baffle - 903, Limiting strip - 1001, Inclined surface - 1002, Through groove - 1101, Connecting plate - 1201, Strip notch - 1202, Fixing seat - 1301, Waist-shaped groove - 1401, Connecting shaft - 1402, Connecting column - 1403, Pushing column - 15. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention will be described in detail below with reference to the accompanying drawings. However, the embodiments described in this invention are only some embodiments of the present invention, and not all embodiments.

[0031] This application provides a conveying device for thawing frozen meat, such as... Figures 1-4 As shown, it includes a transfer frame 1, a first pushing mechanism 102, a lifting mechanism 7, a defrosting frame 5, a second pushing mechanism 8, etc.

[0032] Specifically, the bottom of the transfer frame 1 is provided with two sets of first rollers 101, which are mounted on a pair of U-shaped slide rails 2. One end of the pair of U-shaped slide rails 2 is connected to a connecting rod 201. The transfer frame 1 is connected to the telescopic end of the first pushing mechanism 102, and the fixed end of the first pushing mechanism 102 is connected to the connecting rod 201. The transfer frame 1 is provided with a thawing water pool 3.

[0033] The lifting mechanisms 7 are in pairs, located on both sides of a pair of U-shaped slide rails 2. The telescopic ends of the pair of lifting mechanisms 7 are connected to a horizontal bar 6. Multiple first vertical bars 601 are connected to the side of the horizontal bar 6 near the connecting rod 201. The tops of the multiple first vertical bars 601 are connected to the same fixed rod 605. A second vertical bar 602 is provided at both ends of the fixed rod 605. A common hinge rod 501 passes through the two second vertical bars 602 and the multiple first vertical bars 601. The two ends of the hinge rod 501 are rotatably connected to a pair of rotating rods 801. A first push rod 802 is connected between the bottoms of the pair of rotating rods 801. The defrosting frame 5 is provided with... To avoid the lower thawing efficiency of frozen meat in the middle of a single large thawing frame 5 when using multiple thawing frames 5, multiple openings are provided on the periphery and bottom of each thawing frame 5 to allow water from the thawing pool 3 to flow in. The top of one side of each of the multiple thawing frames 5 is rotatably connected to a hinge rod 501 via a first connecting block, and the bottom of one side of each of the multiple thawing frames 5 is connected to a first push rod 802 via a second connecting block. The second pushing mechanism 8 is a pair, with its telescopic end hinged to the top of a pair of rotating rods 801. The top of each of the two second vertical rods 602 is vertically connected to a mounting rod 603 on the side away from the thawing frame 5. The fixed ends of a pair of second pushing mechanisms 8 are hinged to the outer ends of two mounting rods 603 away from the second vertical rod 602. Specifically, the bottom end of the mounting rod 603 away from the second vertical rod 602 is connected to an inclined support rod 604. The bottom of the inclined support rod 604 is connected to the second vertical rod 602 on the same side to support the mounting rod 603. When the telescopic end of the second pushing mechanism 8 is fully retracted, the rotating rod 801 is in a vertical state. When the telescopic end of the second pushing mechanism 8 is fully extended, the top of the rotating rod 801 rotates towards the transfer frame 1 by a preset angle. Specifically, the preset angle is set to be greater than 90 degrees, so that the opening of the defrosting frame 5 is in a downward tilted state.

[0034] In actual use, the thawing pool 3 is installed inside the transfer frame 1, and water is injected into the thawing pool 3. Then, frozen meat is put into multiple thawing frames 5. Next, the lifting mechanism 7 is controlled to move the horizontal bar 6 and multiple vertical bars downward, so that multiple thawing frames 5 enter the thawing pool. Then, the thawing pool is kept at a constant temperature to thaw the frozen meat. After thawing is completed, the lifting mechanism 7 is controlled to move the horizontal bar 6 upward, so that the bottom of the thawing frame 5 reaches above the thawing pool 3. Then, the first pushing mechanism 102 is controlled to pull the transfer frame 1 towards the connecting rod 201, so that the thawing pool 3 moves outside the coverage area of ​​the bottom of the thawing frame 5. Then, the telescopic end of the second pushing mechanism 8 is fully extended, so that the top of the rotating rod 801 can rotate towards the transfer frame 1 by a preset angle. The first pushing rod 802 will simultaneously push the thawing frame 5 to rotate by a preset angle, so that the thawed meat in the thawing frame 5 can be poured out. Specifically, a material frame can be placed on the side of the transfer frame 1 away from the connecting rod 201 to receive the meat poured out of the thawing frame 5.

[0035] Preferred options, please refer to Figures 1-3A first conveying mechanism 4 is connected to the side of the transfer frame 1 away from the connecting rod 201. The conveying direction of the first conveying mechanism 4 is parallel to the length direction of the transfer frame 1. The bottom of the first conveying mechanism 4 is provided with two sets of second rollers 402, which are respectively mounted on a pair of U-shaped slide rails 2. Multiple receiving frames 401 are provided on the first conveying mechanism 4 along the conveying direction. When the first pushing mechanism 102 pulls the transfer frame 1 towards the connecting rod 201, the first conveying mechanism 4 will follow the transfer frame 1, causing the receiving frames 401 above it to move to below the thawing frame 5 to receive the meat poured out of the thawing frame 5. After the pouring is completed, the first pushing mechanism 102 pushes the transfer frame 1 to reset, and then the first conveying mechanism 4 conveys the receiving frames 401 to transfer the receiving frames 401. For details, please refer to [link to relevant documentation]. Figure 5 A second conveying mechanism 403 can be set at one end of the first conveying mechanism 4 to receive the receiving frame 401 output by the first conveying mechanism 4 and convey the receiving frame 401 to the subsequent meat processing area. Specifically, the size of the receiving frame 401 is set to be larger than the size of the thawing frame 5 so that it can receive the thawed meat poured out from the thawing frame 5.

[0036] Preferably, in another embodiment, see [reference] Figure 5 , Figure 8 The conveyor device for thawing frozen meat also includes a conveyor belt 9, which comprises a horizontal section 902 and a downwardly inclined section 901 connected to each other. Figure 5 The horizontal section 902 is only partially shown and can actually extend further forward (continuing to transport the feeding frame 10 after the frozen meat has been poured out). The horizontal section 902 is spaced above the transfer frame 1. When the thawing frame 5 rises to its maximum height, the horizontal section 902 is still higher than the thawing frame 5. Multiple first baffles 903 are arrayed along the length of the conveyor belt 9, parallel to the width direction of the conveyor belt 9. Multiple feeding frames 10 are arranged along the conveying direction of the conveyor belt 9, with the feeding frames 10 placed between adjacent first baffles 903. The first baffles 903 are used to push the feeding frames 10 to move. Before feeding the frozen meat into the thawing frame 5, the frozen meat can be placed in the transfer frame 1. The transfer frame 1 is placed at the bottom of the inclined section 901 of the conveyor belt 9. After the conveyor belt 9 starts, the corresponding first baffle 903 pushes the feeding frame 10 to move above the thawing frame 5. At this time, rotating the feeding frame 10 can pour the frozen meat into the thawing frame 5, eliminating the need for manual lifting of the feeding frame 10 containing the frozen meat for feeding.

[0037] For details, please refer to Figure 5The distance between the outer sides of adjacent first baffles 903 is greater than the distance between adjacent thawing frames 5. The bottom width of the feeding frame 10 matches the width between adjacent first baffles 903, and the distance between adjacent feeding frames 10 matches the distance between the outer sides of two adjacent first baffles 903. With this setting, multiple feeding frames 10, the same number as the thawing frames 5, can move simultaneously under the drive of the conveyor belt 9 to align with multiple thawing frames 5. After alignment, the conveyor belt 9 is stopped, and the frozen meat in the multiple feeding frames 10 can then be poured into the multiple thawing frames 5.

[0038] Preferred options, please refer to Figure 5 , Figure 6 A second baffle 11 is provided on the side of the conveyor belt 9 away from the connecting rod 201. The top of the second baffle 11 is connected to a round rod 12 whose length direction is parallel to that of the conveyor belt 9 via a connecting plate 1201. The top of the feeding frame 10 near the second baffle 11 is provided with an inverted U-shaped limiting strip 1001, and the round rod 12 is located within the limiting strip 1001. During the movement of the feeding frame 10 driven by the conveyor belt 9, the round rod 12 is located within the inverted U-shaped limiting strip 1001, which can prevent the feeding frame 10 from sliding and improve the conveying stability. After the feeding frame 10 moves to be aligned with the defrosting frame 5, the round rod 12 can provide support for the limiting strip 1001 when the material is poured out. Pushing the feeding frame 10 upward around the corresponding round rod 12 can pour out the frozen meat. Specifically, the end of the feeding frame 10 near the second baffle 11 has an inclined surface 1002 that slopes upward toward the second baffle 11. When pouring out frozen meat, rotating the feeding frame 10 upward within 90 degrees will make the inclined surface 1002 slope downward toward the thawing frame 5, making it easier to pour out frozen meat.

[0039] Preferred options, please refer to Figure 6 , Figure 8 , Figure 9 On one side of the horizontal section 902, a portion of the second baffle 11 has multiple through slots 1101 along its length. A connecting shaft 1402 is located within each through slot 1101 along the length of the horizontal section 902. A second push rod 14 is rotatably connected to the connecting shaft 1402. Both ends of the second push rod 14 extend out from both sides of the second baffle 11. A waist-shaped groove 1401 is located at the end of the second push rod 14 away from the feeding frame 10. A connecting post 1403 passes through the waist-shaped groove 1401. The connecting post 1403 is connected to the telescopic end of a third pushing mechanism 13 via a fixed seat 1301. The third pushing mechanism 13 is vertically fixed to the outside of the second baffle 11. (See reference...) Figure 10When the feeding frame 10 moves to align with the through slot 1101 and the telescopic end of the third pushing mechanism 13 is fully retracted, the feeding frame 10 rotates upward around the portion of the round rod 12 above the horizontal section 902 until the inclined surface 1002 is tilted downward toward the defrosting frame 5, so that the frozen meat in the feeding frame 10 can be completely poured out. Specifically, to prevent the limiting strip 1001 from being blocked by the connecting plate 1201 when the feeding frame 10 rotates upward, the height of the vertical section on the outer side of the inverted U-shaped limiting strip 1001 can be set to be less than the radius of the round rod 12, so that when the feeding frame 10 rotates upward at a preset angle, the vertical section on the outer side of the limiting strip 1001 does not contact the vertical connecting plate 1201.

[0040] For further optimization, please refer to Figure 7 The connecting plate 1201 on one side of the horizontal section 902 has multiple strip-shaped notches 1202 extending downwards along its length. These notches 1202 are aligned with multiple thawing frames 5, and their lengths are greater than the length of the limiting strip 1001. This design allows for a larger height of the outer vertical section of the limiting strip 1001, preventing the limiting strip 1001 from being blocked by the connecting plate 1201 when the feeding frame 10 rotates upwards. This improves the stability of the feeding frame 10 during upward rotation and prevents the limiting strip 1001 from detaching from the round rod 12.

[0041] For details, please refer to Figure 9 The second push rod 14 is connected to a mounting base 1501 at one end near the feeding frame 10. A circular push column 15 is rotatably connected inside the mounting base 1501. The length direction of the push column 15 is parallel to the length direction of the horizontal section 902 and is used to push the feeding frame 10. The push column 15 pushes the feeding frame 10, and rolling friction is generated between the two. Compared with directly using the second push rod 14 to push the feeding frame 10, the friction force can be reduced, thereby reducing wear.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to be the only or limiting of the invention. Those skilled in the art should understand that various changes or equivalent substitutions made to the present invention without departing from its scope are all within the protection scope of the present invention.

Claims

1. A conveying device for thawing frozen meat, characterized in that, include: The transfer frame has two sets of first rollers at its bottom, which are mounted on a pair of U-shaped slide rails. One end of the pair of U-shaped slide rails is connected to the fixed end of a first pushing mechanism via a connecting rod. The transfer frame is connected to the telescopic end of the first pushing mechanism. A thawing water tank is provided inside the transfer frame. A pair of lifting mechanisms are located on both sides of a pair of U-shaped slide rails. The telescopic ends of the pair of lifting mechanisms are connected to the same side of multiple first vertical rods through a crossbar. The tops of the multiple first vertical rods are connected to the same fixed rod. A second vertical rod is provided at both ends of the fixed rod. The same hinge rod is passed through the two second vertical rods and the multiple first vertical rods. The two ends of the hinge rod are rotatably connected to a pair of rotating rods. A first push rod is connected between the bottoms of the pair of rotating rods. Multiple defrosting frames, the top of one side of each frame is rotatably connected to a hinge rod via a first connecting block, and the bottom of one side of each frame is connected to a first push rod via a second connecting block. A pair of second pushing mechanisms, the telescopic ends of which are hinged to the top of a pair of rotating rods, and the top of the two second vertical rods are vertically connected to the side away from the defrosting frame. The fixed ends of the pair of second pushing mechanisms are hinged to the outer ends of the two mounting rods away from the second vertical rods. When the telescopic ends of the second pushing mechanisms are fully retracted, the rotating rods are in a vertical state. When the telescopic ends of the second pushing mechanisms are fully extended, the top of the rotating rods rotates towards the transfer frame by a preset angle. The conveyor belt includes interconnected horizontal sections and downwardly inclined sections. The horizontal sections are spaced above the transfer frames. Multiple first baffles are arranged in an array along the length direction of the conveyor belt, parallel to the width direction of the conveyor belt. Multiple feeding frames are arranged along the conveying direction of the conveyor belt. The first baffles are used to push the feeding frames to move. The distance between the outer sides of adjacent first baffles is greater than the distance between adjacent defrosting frames. The bottom width of the feeding frame matches the width between adjacent first baffles, and the distance between adjacent feeding frames matches the distance between the outer sides of two adjacent first baffles. A second baffle is provided on the side of the conveyor belt away from the connecting rod. A round rod parallel to the length direction of the conveyor belt is connected to the top of the second baffle through a connecting plate. An inverted U-shaped limiting strip is provided on the top of the feeding frame near the second baffle, and the round rod is inside the limiting strip. The end of the feeding frame near the second baffle is an inclined surface that slopes upward toward the second baffle; On one side of the horizontal section, a second baffle has multiple through slots along its length. A connecting shaft is provided in the through slot along the length of the horizontal section. A second push rod is rotatably connected to the connecting shaft. The two ends of the second push rod extend out of the two sides of the second baffle. A waist-shaped groove is provided at the end of the second push rod away from the feeding frame. A connecting column passes through the waist-shaped groove. The connecting column is connected to the telescopic end of a third pushing mechanism through a fixed seat. The third pushing mechanism is vertically fixed to the outside of the second baffle. When the feeding frame moves to align with the through slot and the telescopic end of the third pushing mechanism is fully retracted, the feeding frame rotates upward around the part of the round rod above the horizontal section until the inclined surface is in a state of tilting downward toward the thawing frame.

2. The conveying device for thawing frozen meat according to claim 1, characterized in that, The first conveying mechanism is connected to the side of the transfer frame away from the connecting rod. The conveying direction of the first conveying mechanism is parallel to the length direction of the transfer frame. The bottom of the first conveying mechanism is provided with two sets of second rollers, which are respectively set on a pair of U-shaped slide rails. Multiple receiving frames are provided on the first conveying mechanism along the conveying direction.

3. The conveying device for thawing frozen meat according to claim 1, characterized in that, The top of the connecting plate on one side of the horizontal section has multiple strip-shaped notches extending downwards along the length direction. These strip-shaped notches are aligned with multiple thawing frames, and the length of the strip-shaped notches is greater than the length of the limiting strip.

4. The conveying device for thawing frozen meat according to claim 1, characterized in that, The second push rod is connected to a mounting base at one end near the feeding frame. A circular push column is rotatably connected inside the mounting base. The length of the push column is parallel to the length of the horizontal section and is used to push the feeding frame.

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