Fabric storage device for bed sheet stacks

Abstract

The application discloses a fabric storage device for bed sheet stacking and relates to the technical field of storage, which comprises a warehouse top, a stacking assembly and an opening and closing mechanism; opening and closing grooves are formed at the two ends of the long side of the bottom surface of the warehouse top, sliding grooves are formed at the corresponding positions on the two sides of the opening and closing grooves, a through hole is formed in the interior of the warehouse top to connect the two sliding grooves, and reservation holes are formed at the two ends of the short side of the bottom surface of the warehouse top. The three-dimensional storage function of the bed sheet storage is realized by the stacking assembly, and the space utilization of the warehouse is greatly improved. The stacking height of the bed sheet can be freely positioned by the reverse stopping mechanism. The opening and closing mechanism is used for supporting and closing the bed sheet and the whole device.

Description

Technical Field

[0001] This invention relates to the field of storage technology, specifically to a fabric storage device for stacking bed sheets. Background Technology

[0002] Bed sheets are primarily stored in the warehouse using palletizing and unitization. Raw materials or finished products are neatly stacked and secured on standard pallets, then moved to heavy-duty racks or automated storage and retrieval systems (AS / RS) for dense, three-dimensional storage. The entire process takes place in a controlled environment with constant temperature and humidity, and is protected from light and dust, strictly adhering to the first-in, first-out (FIFO) principle to ensure stable bed sheet quality, efficient storage and retrieval, and maximized space utilization. The fabric storage device for bed sheet stacking, through a rational stacking method, achieves efficient space utilization, rapid and accurate circulation, and low-cost management while ensuring stable quality.

[0003] A search revealed Chinese patent CN119976139B, which includes a base plate and two sets of vertical plates fixedly connected to the upper part of the base plate. An outer cylinder is fixedly connected to the upper end of each vertical plate. A main rod is fixedly connected to the inner sides of both sets of outer cylinders. An adjustment assembly is provided on the outer side of the main rod. The adjustment assembly includes two sets of straight rods fixedly connected to the main rod. A protective assembly for protecting the bed sheet is slidably connected between the two sets of straight rods. Clamping plates are fixedly connected to opposite sides of both sets of vertical plates. This invention facilitates the handling of bed sheets and ensures a sealed storage shell, preventing the textiles from igniting and protecting the textiles while preventing further fire spread.

[0004] However, while the above scheme utilizes the cooperation between the outer cylinder and the main rod to achieve efficient storage and retrieval of textiles, the overall movement trajectory of the protective component is circular. To ensure smooth storage and retrieval, it is necessary to ensure that there are no obstructions on the movement path of the storage shell. However, the circular movement trajectory occupies a large amount of space, which does not meet the factory's high-utilization storage standards. On the other hand, the above scheme uses a fixed rope to pull the pressure shell and achieves a seal between the pressure shell and the storage shell by the breakage of the fixed rope. The fact that the fixed rope breaks due to heat indicates that its own structural strength is not high. Therefore, during the movement of the protective component, the fixed rope is at risk of accidental breakage due to environmental external forces. In other words, the protective effect of the above scheme cannot be guaranteed. Summary of the Invention

[0005] The purpose of this invention is to provide a fabric storage device for stacking bed sheets, which has the advantages of three-dimensional storage and anti-falling, and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fabric storage device for stacking bed sheets, including a top, a stacking component for three-dimensional storage of bed sheets, and an opening and closing mechanism for preventing falls; opening and closing grooves are provided at both ends of the long side of the bottom surface of the top, and sliding grooves are provided at corresponding positions on both sides of the opening and closing grooves on the top; a through hole is provided inside the top to connect the two sliding grooves; and reserved holes are provided at both ends of the short side of the bottom surface of the top.

[0007] The opening and closing mechanism includes a drive roller driven by a built-in motor. The drive roller is disposed inside the through hole and is rotatably connected to the top of the bin.

[0008] The stacking assembly includes a drive mechanism for the overall unfolding of the control device, a backstop mechanism for freely positioning the stacking height, and a storage mechanism for achieving the storage effect; the drive mechanism includes a pulley set in a reserved hole, the backstop mechanism includes a guide shaft that is drivenly connected to the drive mechanism, and the storage mechanism includes a top plate fixedly connected to the center of the bottom surface of the silo.

[0009] Preferably, threaded portions are fixedly connected to the outer contours of both ends of the drive roller, and the threads of the two threaded portions are oriented in opposite directions. Threaded cylinders that are slidably connected to the outer contours of the two threaded portions are screwed into the through holes. Z-plates that are slidably connected to the ends of the two threaded cylinders away from the drive roller are fixedly connected to the ends of the two threaded cylinders in the corresponding opening and closing grooves. Slider blocks that are slidably connected to the top sides of the two Z-plates are fixedly connected to the top sides of the two Z-plates in the corresponding sliding grooves.

[0010] Preferably, a positioning shaft 1 is fixedly connected to the center of the pulley and inside the corresponding reserved hole. A tension rope is rotatably connected to the outer contour of the pulley. One end of the tension rope is wound with a drive wheel. A positioning shaft 2 is fixedly connected to the center of the drive wheel. The positioning shaft 2 is also driven by a built-in motor. Both ends of the positioning shaft 2 are fixed seats. The bottom ends of the two fixed seats are fixed to the ground. The other end of the tension rope is fixedly connected to the top end of the guide shaft.

[0011] Preferably, a lifting frame is passed through the outer contour of the guide shaft, and guide grooves are provided at both ends of the lifting frame. Fixed frames are slidably connected to both ends of the lifting frame. The bottom ends of the two fixed frames are fixedly connected to the ground. Tapered racks are fixedly connected to the opposite surfaces of the two fixed frames. A spring plate is provided on the lower surface of the top of the lifting frame. The middle section of the spring plate is passed through by the guide shaft. Fixed pins are provided at both ends of the spring plate. The two ends of the spring plate are fixedly connected to the lifting frame through the fixed pins.

[0012] Preferably, the bottom end of the guide shaft is rotatably connected to two mirror-symmetrical L-bars via pins. The bends of the two L-bars are penetrated and rotatably connected to positioning seats. The two ends of the two positioning seats are fixedly connected to the inner walls at corresponding positions at both ends of the lifting frame. The bottom ends of the two L-bars are rotatably connected to anti-reverse pins via pins. The two anti-reverse pins are slidably connected to the inner walls at corresponding positions at both ends of the lifting frame and extend outward.

[0013] Preferably, the beveled surface of the beveled rack is set downwards, the beveled surface of the anti-reverse pin is set upwards, and the anti-reverse pin and the beveled rack are engaged with each other.

[0014] Preferably, both ends of the long side of the top plate are fixedly connected with positioning pins, and each positioning pin is fitted with a connecting rod one and a connecting rod two on its outer contour. The connecting rod two and the connecting rod one are mirror images of each other. The end of the connecting rod one away from the positioning pin is rotatably connected to the connecting rod three through a pin shaft. The end of the connecting rod two away from the positioning pin is rotatably connected to the connecting rod four through a pin shaft. The connecting rod four and the connecting rod three are also mirror images of each other.

[0015] The bottom of the top plate is provided with a middle plate, and the two ends of the long side of the middle plate are also fixedly connected with positioning pins. Positioning blocks are fixedly connected around the middle plate. The middle plate is slidably connected to the fixing frame at the corresponding position through the positioning blocks. The bottom ends of the connecting rods three and four are penetrated and rotatably connected to the positioning pins at both ends of the middle plate.

[0016] The bottom of the middle plate is provided with a base plate, and the two ends of the long side of the base plate are also fixedly connected with positioning pins. Connecting blocks are fixedly connected around the base plate, and the base plate is fixedly connected to the lifting frame at the corresponding position through the connecting blocks.

[0017] Preferably, the intermediate plate, connecting rod one, connecting rod two, connecting rod three, and connecting rod four are provided in multiple sets and in corresponding quantities. The topmost connecting rod two and connecting rod one cooperate with the positioning pins at both ends of the top plate to realize the transmission connection between the intermediate plate and the top plate. The bottommost connecting rod three and connecting rod four cooperate with the positioning pins at both ends of the bottom plate to realize the transmission connection between the bottom plate and the intermediate plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] This invention achieves three-dimensional storage of bed sheets by setting up stacking components, which greatly improves the space utilization of the warehouse. Bed sheets with low access frequency are stacked on the top of the warehouse, thereby effectively saving ground space.

[0020] This invention, by setting an anti-reverse mechanism, can freely position the stacking height of bed sheets, and at the same time, by lifting and unfolding, it achieves efficient storage and retrieval of bed sheets, effectively improving the storage and retrieval efficiency of bed sheets.

[0021] This invention provides a mechanism for supporting and enclosing the bed sheets and devices stacked on top of the warehouse, preventing safety accidents caused by the devices and bed sheets falling due to structural breakage. It also reduces the probability of fire caused by the bed sheets coming into contact with a fire source, effectively improving the safety performance of bed sheet storage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 This is a cross-sectional view of the main structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the top of the silo in this invention;

[0025] Figure 4 This is a schematic diagram of the opening and closing mechanism of the present invention;

[0026] Figure 5 This is a schematic diagram of the stacking component of the present invention;

[0027] Figure 6 This is a schematic diagram of the driving mechanism of the present invention;

[0028] Figure 7 This is a schematic diagram of the anti-reverse mechanism of the present invention;

[0029] Figure 8 This is a schematic diagram of the storage mechanism of the present invention;

[0030] Figure 9 This is an exploded view of the storage mechanism of the present invention.

[0031] In the diagram: 1. Silo top; 11. Opening and closing groove; 12. Sliding groove; 13. Through hole; 14. Reserved hole; 2. Drive roller; 21. Threaded part; 22. Threaded cylinder; 23. Z-plate; 24. Slider; 3. Pulley; 31. Positioning shaft one; 32. Tension rope; 33. Drive wheel; 34. Positioning shaft two; 35. Fixed seat; 4. Guide shaft; 41. Lifting frame; 42. Guide groove; 43. Fixed frame; 44. Bevel rack; 45. Spring plate; 46. Fixed pin; 47. L-rod; 48. Positioning seat; 49. Anti-reverse pin; 5. Top plate; 51. Positioning pin; 52. Positioning block; 53. Intermediate plate; 54. Connecting rod one; 55. Connecting rod two; 56. Connecting rod three; 57. Connecting rod four; 58. Bottom plate; 59. Connecting block. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] Please see Figures 1 to 9 The present invention provides a technical solution: a fabric storage device for stacking bed sheets, including a top 1, a stacking component for realizing three-dimensional storage of bed sheets, and an opening and closing mechanism for realizing anti-fall function; opening and closing grooves 11 are provided at both ends of the long side of the bottom surface of the top 1, and sliding grooves 12 are provided at corresponding positions on both sides of the opening and closing grooves 11; through holes 13 are provided inside the top 1 to connect the two sliding grooves 12; and reserved holes 14 are provided at both ends of the short side of the bottom surface of the top 1.

[0035] The opening and closing mechanism includes a drive roller 2 driven by a built-in motor. The drive roller 2 is disposed inside the through hole 13 and is rotatably connected to the top of the bin.

[0036] The stacking assembly includes a drive mechanism for the overall unfolding of the control device, a backstop mechanism for freely positioning the stacking height, and a storage mechanism for achieving the storage effect; the drive mechanism includes a pulley 3 set in the reserved hole 14, the backstop mechanism includes a guide shaft 4 that is connected to the drive mechanism for transmission, and the storage mechanism includes a top plate 5 that is fixedly connected to the center of the bottom surface of the top of the bin 1.

[0037] In this scheme, the top of the warehouse 1 is used to simulate the ceiling structure of the bed sheet warehouse. The stacking components are restricted to the bottom of the top of the warehouse 1 by the opening and closing mechanism. The storage mechanism in the stacking components is used to store the bed sheets. The drive mechanism and the anti-reverse mechanism work together to realize the expansion and contraction of the storage mechanism. At the same time, the degree of expansion can be freely controlled by the anti-reverse mechanism. By storing the bed sheets under the ceiling of the warehouse, the floor space in the warehouse is effectively saved, and the three-dimensional storage and free access of the bed sheets are realized.

[0038] It should be noted that this storage solution is suitable for bed sheets with low access frequency. For bed sheets that require frequent access, stacking them directly on the shelves on the warehouse floor results in higher overall warehouse turnover efficiency. Furthermore, bed sheets with low access frequency mean they are stored in the warehouse for a longer period. In bed sheet warehouse fires, the fire source almost always originates on or near the ground. By storing these bed sheets on the top of the warehouse, the storage structure further isolates them from the external environment, effectively preventing the stored bed sheets from coming into contact with ground fire sources, thus reducing the probability of a warehouse fire and ensuring the safety and protection effect of the solution.

[0039] The opening and closing groove 11, the sliding groove 12, and the through hole 13 work together with the opening and closing mechanism to achieve the overall positioning and anti-fall effect of the stacked components; the reserved hole 14 provides a supporting foundation for the drive mechanism.

[0040] Example 2

[0041] Please see Figure 3 and Figure 4 This embodiment further illustrates the following based on Embodiment 1: Threaded portions 21 are fixedly connected to the outer contours of both ends of the drive roller 2, and the threads of the two threaded portions 21 are oriented in opposite directions. Threaded cylinders 22 that are slidably connected to the outer contours of the two threaded portions 21 are screwed into the through holes 13. Z-plates 23 that are slidably connected to the ends of the two threaded cylinders 22 away from the drive roller 2 are fixedly connected to the ends of the two threaded cylinders 22 that are slidably connected to the opening and closing grooves 11 at the corresponding positions. Slider blocks 24 that are slidably connected to the top sides of the two Z-plates 23 are fixedly connected to the sides of the tops of the two Z-plates 23.

[0042] As can be seen from Embodiment 1, the opening and closing mechanism achieves the limiting and anti-fall effect of the entire stacked components. In the initial state, the storage mechanism is in a retracted state and located below the top of the bin 1. At this time, the upper surface of the bottom end of the Z plate 23 contacts and supports the lower surface of the bottom end of the storage mechanism. When it is necessary to control the storage mechanism to unfold, the supporting and limiting effect of the Z plate 23 on the storage mechanism needs to be released first.

[0043] At this time, the drive roller 2 is started and drives the two threaded parts 21 to rotate synchronously. The two threaded cylinders 22 tend to rotate synchronously under the action of being screwed to the threaded parts 21. However, since their other ends are fixedly connected to the Z plate 23 and the slider 24, the Z plate 23 is limited by the opening and closing groove 11, and the slider 24 is also limited by the sliding groove 12. This causes the Z plate 23 and the slider 24 to be unable to rotate. That is, the Z plate 23 and the slider 24 can only achieve telescopic sliding along the direction of the opening and closing groove 11 and the sliding groove 12. At this time, under the action of the threaded cylinder 22 being screwed to the threaded part 21, the threaded cylinder 22 begins to move along the axial direction of the threaded part 21.

[0044] Since the threads of the two threaded portions 21 are oriented in opposite directions, meaning the two threaded cylinders 22 move in opposite directions, they are in a relationship of moving closer to or further away from each other. Similarly, the movement relationship of the bottom ends of the two Z-plates 23 is the same as that of the threaded cylinders 22; Figure 4 For example, when the drive roller 2 drives the threaded part 21 to rotate clockwise, the bottom ends of the two Z plates 23 move away from each other, thereby gradually releasing the supporting and limiting effect on the storage mechanism; when the drive roller 2 drives the threaded part 21 to rotate counterclockwise, the bottom ends of the two Z plates 23 move closer to each other and support and limit the storage mechanism again.

[0045] Example 3

[0046] Please see Figures 5 to 7 This embodiment further illustrates the following based on Embodiment 2: A positioning shaft 31 is fixedly connected to the center of the pulley 3 and is fixedly connected to the corresponding reserved hole 14. An anti-tension rope 32 is rotatably connected to the outer contour of the pulley 3. One end of the anti-tension rope 32 is wound with a drive wheel 33. A positioning shaft 34 is fixedly connected to the center of the drive wheel 33. The positioning shaft 34 is also driven by a built-in motor. Both ends of the positioning shaft 34 are fixed seats 35. The bottom ends of the two fixed seats 35 are fixed to the ground. The other end of the anti-tension rope 32 is fixedly connected to the top end of the guide shaft 4.

[0047] A lifting frame 41 extends through the outer contour of the guide shaft 4. Guide grooves 42 are provided at both ends of the lifting frame 41. Fixed brackets 43 are slidably connected to both ends of the lifting frame 41. The bottom ends of the two fixed brackets 43 are fixedly connected to the ground. A conical rack 44 is fixedly connected to the opposite surface of the two fixed brackets 43. A spring plate 45 is provided on the lower surface of the top of the lifting frame 41. The middle section of the spring plate 45 is penetrated by the guide shaft 4. Fixed pins 46 are provided at both ends of the spring plate 45. The two ends of the spring plate 45 are fixedly connected to the lifting frame 41 by the fixed pins 46.

[0048] The bottom end of the guide shaft 4 is rotatably connected to two mirror-symmetrical L-shaped rods 47 via pins. The bends of the two L-shaped rods 47 are penetrated and rotatably connected to positioning seats 48. The two ends of the two positioning seats 48 are fixedly connected to the inner walls of the corresponding positions at both ends of the lifting frame 41. The bottom ends of the two L-shaped rods 47 are rotatably connected to anti-reverse pins 49 via pins. The two anti-reverse pins 49 are slidably connected to the inner walls of the corresponding positions at both ends of the lifting frame 41 and extend outward.

[0049] The beveled surface of the beveled rack 44 is set downwards, and the beveled surface of the anti-reverse pin 49 is set upwards. The anti-reverse pin 49 and the beveled rack 44 are engaged with each other.

[0050] As can be seen from Embodiments 1 and 2, after the opening and closing mechanism unfolds, it begins to control the unfolding of the stacked components. At this time, the drive positioning shaft 34 drives the drive wheel 33 to rotate, and the drive wheel 33 begins to synchronously wind up or release the tensile rope 32, as shown in Embodiments 2 and 34. Figure 6 As shown, when the positioning shaft 34 drives the drive wheel 33 to rotate clockwise, the anti-tension rope 32 is gradually released and the height of the guide shaft 4 decreases synchronously; when the positioning shaft 34 drives the drive wheel 33 to rotate counterclockwise, the anti-tension rope 32 is gradually wound up and the height of the guide shaft 4 increases synchronously, that is, the anti-reverse mechanism has a tendency to rise and fall synchronously with the rotation of the drive wheel 33.

[0051] Furthermore, in Figure 7 As can be seen, in the initial state, the anti-reverse pin 49 and the conical rack 44 are locked together, which prevents the anti-reverse mechanism from descending. When the guide shaft 4 is pulled up by the tension rope 32, it compresses the spring plate 45 and causes it to deform. The bottom end of the guide shaft 4 pulls the two L rods 47 to deflect around the positioning seat 48. The deflection of the bottom end of the L rods 47 causes the anti-reverse pin 49 to retract into the lifting frame 41 and release the contact lock with the conical rack 44. At this time, the anti-reverse mechanism can descend smoothly.

[0052] Therefore, when it is necessary to control the descent of the anti-reverse mechanism, first control the drive wheel 33 to rotate counterclockwise by a small angle, so that the contact engagement between the anti-reverse pin 49 and the conical rack 44 is released. Then, slowly rotate the drive wheel 33 clockwise, so that the guide shaft 4 also descends slowly. During this process, since the engagement between the anti-reverse pin 49 and the conical rack 44 is released, the lifting frame 41 has a tendency to fall under its own gravity. However, it is fixedly connected to the positioning seat 48, so the descent rate of the lifting frame 41 is limited by the descent rate of the guide shaft 4 and descends slowly in sync. When the bottom of the lifting frame 41 descends to the preset height, control the drive wheel 33 to quickly rotate clockwise by a small angle. At this time, the guide shaft 4 descends rapidly and a displacement difference appears between it and the lifting frame 41. The compression of the spring plate 45 by the guide shaft 4 disappears, causing the spring plate 45 to start to rebound. At the same time, the L rod 47 begins to deflect and reset, so that the anti-reverse pin 49 extends out from the inside of the lifting frame 41 again to engage with the conical rack 44. Then the height of the lifting frame 41 is fixed and cannot continue to descend.

[0053] When it is necessary to control the anti-reverse mechanism to rise, the drive wheel 33 is controlled to rotate counterclockwise, which pulls the lifting frame 41 up through the guide shaft 4 and the spring plate 45. When the lifting frame 41 rises to the preset height, the same process as above is repeated. The drive wheel 33 quickly rotates clockwise by a small angle, so that the guide shaft 4 releases the pressure on the spring plate 45, and then the anti-reverse pin 49 extends to engage with the conical rack 44, thus fixing the height of the lifting frame 41.

[0054] It should be noted that since the bottom end of the lifting frame 41 is fixedly connected to the bottom end of the storage mechanism, the height of the bottom end of the lifting frame 41 is the same as the height of the bottom end of the storage mechanism. The top end of the storage mechanism is fixedly connected to the lower surface of the top of the storage unit 1, meaning the height of the top end of the storage mechanism remains unchanged. Therefore, by controlling the height of the lifting frame 41, the degree of unfolding of the storage mechanism can be controlled. At the same time, the locking of the anti-reverse pin 49 and the conical rack 44 is used to prevent the lifting frame 41 and the storage mechanism from falling, effectively ensuring the safety protection effect of the solution.

[0055] On the other hand, the two positioning axes 34 are synchronously driven by signals, thereby ensuring that the movement state of the two lifting frames 41 is always the same. That is, the storage mechanism as a whole remains horizontal whether it is unfolding or retracting, thus avoiding the risk of the bed sheets stacked on it slipping off.

[0056] Example 4

[0057] Please see Figure 8 and Figure 9 This embodiment further illustrates the following based on implementation three: both ends of the long side of the top plate 5 are fixedly connected to positioning pins 51. Each positioning pin 51 has a connecting rod 1 54 and a connecting rod 2 55 sleeved on its outer contour. The connecting rod 2 55 and the connecting rod 1 54 are mirror images of each other. The end of the connecting rod 1 54 away from the positioning pin 51 is rotatably connected to the connecting rod 3 56 through a pin shaft. The end of the connecting rod 2 55 away from the positioning pin 51 is rotatably connected to the connecting rod 4 57 through a pin shaft. The connecting rod 4 57 and the connecting rod 3 56 are also mirror images of each other.

[0058] The bottom end of the top plate 5 is provided with a middle plate 53. The two ends of the long side of the middle plate 53 are also fixedly connected with positioning pins 51. Positioning blocks 52 are fixedly connected around the middle plate 53. The middle plate 53 is slidably connected to the corresponding fixing frame 43 through the positioning blocks 52. The bottom ends of the connecting rod 3 56 and connecting rod 4 57 are penetrated and rotatably connected to the positioning pins 51 at both ends of the middle plate 53.

[0059] The bottom end of the intermediate plate 53 is provided with a base plate 58. The two ends of the long side of the base plate 58 are also fixedly connected with positioning pins 51. The base plate 58 is fixedly connected with connecting blocks 59 on all four sides. The base plate 58 is fixedly connected to the lifting frame 41 at the corresponding position through the connecting blocks 59.

[0060] The intermediate plate 53, connecting rod 1 54, connecting rod 2 55, connecting rod 3 56, and connecting rod 4 57 are all provided in multiple sets and in corresponding quantities. The top connecting rod 2 55 and connecting rod 1 54 cooperate with the positioning pins 51 at both ends of the top plate 5 to realize the transmission connection between the intermediate plate 53 and the top plate 5. The bottom connecting rod 3 56 and connecting rod 4 57 cooperate with the positioning pins 51 at both ends of the bottom plate 58 to realize the transmission connection between the bottom plate 58 and the intermediate plate 53.

[0061] As can be seen from Embodiment 3, the height change of the lifting frame 41 realizes the unfolding and retraction process of the storage mechanism. The bottom end of the lifting frame 41 and the base plate 58 always maintain the same height position. When the height of the lifting frame 41 decreases, it drives the base plate 58 to decrease synchronously.

[0062] It should be noted that the connecting rods 56, 57, 54, and 55, which are in the corresponding positions, together form a connecting rod group. When the base plate 58 descends, it pulls the connecting rod group connected to it through the corresponding positioning pin 51 to unfold. When the connecting rod group is unfolded to its maximum extent, its top begins to descend synchronously with the base plate 58, and drives the intermediate plate 53 in the corresponding position to descend synchronously. At this time, the connecting rod group above the intermediate plate 53 also begins to unfold. After it is unfolded to its maximum extent, it pulls the intermediate plate 53 above it to descend again. Thus, the base plate 58 is driven to descend through the lifting frame 41, realizing the gradual unfolding of the storage mechanism from bottom to top. After the base plate 58 and the intermediate plate 53 are fully unfolded, the bed sheets stacked on their surfaces can be stored and retrieved.

[0063] Similarly, the lifting frame 41 drives the base plate 58 to rise. The base plate 58 first completes the rising process and drives the connecting rod group connected to it to fold. After the connecting rod group is folded to the maximum extent, it drives the upper intermediate plate 53 to start rising, thereby realizing the storage mechanism to retract step by step from bottom to top until the storage mechanism is reset to the initial state and located below the top of the bin 1. At this time, the opening and closing mechanism retracts, and the Z plate 23 supports and limits the base plate 58 to avoid the risk of falling due to the structural breakage of the storage mechanism.

[0064] It should be noted that if the storage mechanism breaks, the fallen part of the structure will accumulate on the upper surface of the bottom of the Z plate 23. At this time, during the unfolding process of the opening and closing mechanism, the increased weight of the Z plate 23 will increase the frictional resistance between the threaded cylinder 22 and the threaded part 21. Therefore, the rotational resistance of the drive roller 2 will also increase. Thus, the magnitude of the resistance experienced by the drive roller 2 during rotation can be used to determine whether the storage mechanism has broken and whether the opening and closing mechanism needs to be opened normally.

[0065] On the other hand, the storage mechanism in its retracted state can effectively isolate the sheets stacked on the surfaces of the base plate 58 and the middle plate 53 from the external environment, reducing the probability of them coming into contact with a fire source, thereby greatly improving the safety protection effect of the solution.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fabric storage device for stacking bed sheets, comprising a top (1), characterized in that: It also includes a stacking component for realizing three-dimensional storage of bed sheets and an opening and closing mechanism for realizing anti-fall function; both ends of the long side of the bottom surface of the top of the bin (1) are provided with opening and closing grooves (11), and corresponding positions on both sides of the top of the bin (1) are provided with sliding grooves (12). The inside of the top of the bin (1) is provided with a through hole (13) to connect the two sliding grooves (12), and both ends of the short side of the bottom surface of the top of the bin (1) are provided with reserved holes (14). The opening and closing mechanism includes a drive roller (2) driven by a built-in motor. The drive roller (2) is disposed inside the through hole (13) and is rotatably connected to the top of the bin (1). The stacking assembly includes a drive mechanism for the overall unfolding of the control device, a backstop mechanism for freely positioning the stacking height, and a storage mechanism for achieving the storage effect; the drive mechanism includes a pulley (3) set in the reserved hole (14), the backstop mechanism includes a guide shaft (4) that is connected to the drive mechanism for transmission, and the storage mechanism includes a top plate (5) fixedly connected to the center of the bottom surface of the top of the bin (1).

2. The fabric storage device for stacking bed sheets according to claim 1, characterized in that: The outer contours of both ends of the drive roller (2) are fixedly connected with threaded parts (21) and the threads of the two threaded parts (21) are opposite in orientation. The outer contours of the two threaded parts (21) are screwed with threaded cylinders (22) that are slidably connected in the through hole (13). The ends of the two threaded cylinders (22) away from the drive roller (2) are fixedly connected with Z plates (23) that are slidably connected in the corresponding opening and closing groove (11). The top sides of the two Z plates (23) are fixedly connected with sliders (24) that are slidably connected in the corresponding sliding groove (12).

3. The fabric storage device for stacking bed sheets according to claim 1, characterized in that: The center of the pulley (3) is penetrated by a positioning shaft (31) which is fixedly connected to the corresponding reserved hole (14). A tension rope (32) is rotatably connected to the outer contour of the pulley (3). One end of the tension rope (32) is wound with a drive wheel (33). The center of the drive wheel (33) is penetrated and fixedly connected to a positioning shaft (34). The positioning shaft (34) is also driven by a built-in motor. Both ends of the positioning shaft (34) are penetrated by a fixing seat (35). The bottom ends of the two fixing seats (35) are fixed to the ground. The other end of the tension rope (32) is fixedly connected to the top end of the guide shaft (4).

4. The fabric storage device for stacking bed sheets according to claim 1, characterized in that: A lifting frame (41) runs through the outer contour of the guide shaft (4). Guide grooves (42) are provided at both ends of the lifting frame (41). Fixed brackets (43) are slidably connected to both ends of the lifting frame (41). The bottom ends of the two fixed brackets (43) are fixedly connected to the ground. A conical rack (44) is fixedly connected to the opposite surface of the two fixed brackets (43). A spring plate (45) is provided on the lower surface of the top of the lifting frame (41). The middle section of the spring plate (45) is penetrated by the guide shaft (4). Fixed pins (46) are provided at both ends of the spring plate (45). The two ends of the spring plate (45) are fixedly connected to the lifting frame (41) through the fixed pins (46).

5. A fabric storage device for stacking bed sheets according to claim 4, characterized in that: The bottom end of the guide shaft (4) is rotatably connected to two mirror-symmetrical L rods (47) by a pin. The bends of the two L rods (47) are penetrated and rotatably connected to positioning seats (48). The two ends of the two positioning seats (48) are fixedly connected to the inner walls of the corresponding positions at both ends of the lifting frame (41). The bottom ends of the two L rods (47) are rotatably connected to anti-reverse pins (49) by a pin. The two anti-reverse pins (49) are slidably connected to the inner walls of the corresponding positions at both ends of the lifting frame (41) and extend outward.

6. A fabric storage device for stacking bed sheets according to claim 5, characterized in that: The beveled surface of the beveled rack (44) is set downward, and the beveled surface of the anti-reverse pin (49) is set upward. The anti-reverse pin (49) and the beveled rack (44) are engaged and locked together.

7. A fabric storage device for stacking bed sheets according to claim 1, characterized in that: The top plate (5) has two fixedly connected positioning pins (51) on both ends of its long side. Each positioning pin (51) has a connecting rod 1 (54) and a connecting rod 2 (55) sleeved on its outer contour. The connecting rod 2 (55) and the connecting rod 1 (54) are mirror images of each other. The end of the connecting rod 1 (54) away from the positioning pin (51) is rotatably connected to the connecting rod 3 (56) through a pin shaft. The end of the connecting rod 2 (55) away from the positioning pin (51) is rotatably connected to the connecting rod 4 (57) through a pin shaft. The connecting rod 4 (57) and the connecting rod 3 (56) are also mirror images of each other. The bottom end of the top plate (5) is provided with a middle plate (53). The two ends of the long side of the middle plate (53) are also fixedly connected with positioning pins (51). The middle plate (53) is fixedly connected with positioning blocks (52) around its perimeter. The middle plate (53) is slidably connected to the corresponding fixed frame (43) through the positioning blocks (52). The bottom ends of the connecting rod three (56) and connecting rod four (57) are penetrated and rotatably connected to the positioning pins (51) at both ends of the middle plate (53). The bottom end of the intermediate plate (53) is provided with a base plate (58). The two ends of the long side of the base plate (58) are also fixedly connected with positioning pins (51). The base plate (58) is fixedly connected with connecting blocks (59) around its perimeter. The base plate (58) is fixedly connected to the corresponding lifting frame (41) through the connecting blocks (59).

8. A fabric storage device for stacking bed sheets according to claim 7, characterized in that: The intermediate plate (53), connecting rod one (54), connecting rod two (55), connecting rod three (56) and connecting rod four (57) are all provided in multiple sets and in corresponding quantities. The top connecting rod two (55) and connecting rod one (54) cooperate with the positioning pins (51) at both ends of the top plate (5) to realize the transmission connection between the intermediate plate (53) and the top plate (5). The bottom connecting rod three (56) and connecting rod four (57) cooperate with the positioning pins (51) at both ends of the bottom plate (58) to realize the transmission connection between the bottom plate (58) and the intermediate plate (53).

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