Combined storage box convenient to stack

Abstract

The invention belongs to the technical field of storage containers, and particularly relates to a combined storage box convenient to stack, which comprises an outer box and an inner box, one side of the outer box is open, the sliding inner box is arranged in the outer box, four corners of the top of the outer box are connected with limiting blocks, and four corners of the bottom of the outer box are provided with limiting holes for the limiting blocks to extend into. The inner box consists of a bottom plate, front and rear side plates, a left side plate, a right side plate and an inner side plate; the bottom surfaces of the left side plate and the right side plate are lower than the bottom plate; two sliding inserting rods are arranged on the side face of the right side plate, and square holes allowing the inserting rods to penetrate through are formed in the front side plate and the rear side plate. The outer boxes are placed at the top of another outer box, the limiting blocks penetrate through the limiting holes, articles are placed in the inner boxes, the inner boxes are pushed into the outer boxes, the extrusion plates extrude the translation rods through the second inclined faces, the limiting rods are inserted into the clamping grooves under the action of the rotating blocks, the positions of the stacked outer boxes can be relatively fixed, and automatic locking of the outer boxes is achieved. The risk that the outer box topples over during stacking is reduced, and stacking stability and operation convenience are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of storage containers, and more particularly, relates to a combined storage box that is convenient for stacking. Background Art

[0002] A storage box is a container for storing items. When multiple storage boxes are stacked, for the convenience of taking and placing items, some storage boxes are composed of an outer box and an inner box, and the items can be taken and placed by pulling out the inner box.

[0003] However, the existing storage boxes rely only on gravity for fixation, or achieve stacking through the cooperation of protrusions and grooves, but lack an automatic locking mechanism. The storage boxes at the upper layer are prone to tipping under external forces, and there is a risk of horizontal displacement between the upper and lower boxes after stacking. In addition, the inner box lacks a stable and convenient locking method, so there are certain defects in the stacking stability and operation convenience of the storage boxes. Summary of the Invention

[0004] In order to solve the defects of the existing storage boxes in stacking stability and operation convenience, the purpose of the present invention is to provide a combined storage box that is convenient for stacking.

[0005] The technical solution is as follows: A combined storage box that is convenient for stacking includes an outer box and an inner box. One side of the outer box is open, and a sliding inner box is provided inside the outer box. Limit blocks are connected to the four corners at the top of the outer box, and limit holes for the limit blocks to extend into are opened at the four corners at the bottom of the outer box. The inner box is composed of a bottom plate, front and rear side plates, a left side plate, a right side plate, and an inner side plate. The bottom surfaces of the left side plate and the right side plate are both lower than the bottom plate; two sliding insertion rods are provided on the side surface of the right side plate, square holes for the insertion rods to pass through are opened on the front and rear side plates, and insertion holes for the insertion rods to pass through are opened on the outer box. When the inner box is pushed in, the insertion rods, the square holes, and the insertion holes are aligned.

[0006] More preferably, two limit strips are connected inside the outer box.

[0007] More preferably, the combined storage box that is convenient for stacking further includes a rotating disk, a convex block, a fixed block, a rotating rod, and a pull ring. A circular hole is opened at the center of the right side plate, and a rotating disk is rotatably connected to the right side plate at the circular hole. Two centrally symmetric arc-shaped grooves are opened on the rotating disk. The arc-shaped grooves are divided into a proximal end close to the center of the rotating disk and a distal end far from the center of the rotating disk. Convex blocks are rotatably connected to the mutually approaching ends of the two insertion rods, and the two convex blocks are respectively located in the two arc-shaped grooves. The rotating rotating disk makes the two convex blocks move in opposite directions through the arc-shaped grooves. A fixed block is connected to the rotating disk, a rotating rod is rotatably connected to the fixed block, and a pull ring is connected to the rotating rod.

[0008] More preferably, the stackable combined storage box further includes a first connecting block and a limiting rod. Two pairs of first connecting blocks are connected to the inner bottom of the outer box. The first connecting blocks are each provided with a sliding limiting rod, and a clamping groove for the limiting rod to extend into is formed on one side of the limiting block close to the limiting rod. When two outer boxes are stacked, the limiting blocks at the top of the lower outer box pass through the limiting holes at the bottom of the upper outer box, and the limiting rods of the upper outer box will extend into the clamping grooves after sliding.

[0009] More preferably, the tops of the limiting blocks each have a first inclined surface.

[0010] More preferably, the stackable combined storage box further includes a second connecting block, a translation rod, a rotating block and a pressing plate. Two second connecting blocks are connected to the inner bottom of the outer box. The second connecting blocks are each provided with a sliding translation rod, and an elastic member is connected between the translation rod and the second connecting block. A rotating block is rotatably connected between one end of each pair of limiting rods close to each other and the translation rod on the same side. A pressing plate is connected to the bottom of the bottom plate, and both sides in front of the end of the pressing plate each have a second inclined surface for pressing the translation rod.

[0011] More preferably, the stackable combined storage box further includes a storage frame, a partition board and a baffle. A storage frame is placed inside the inner box. A through hole is formed in the top of the storage frame. Partition boards are connected inside the storage frame, and baffles are connected to the partition boards.

[0012] More preferably, the stackable combined storage box further includes a rotating plate. Embedding holes are formed on both sides of the outer box, and a rotating plate is rotatably connected to the outer box at the embedding holes.

[0013] The beneficial effects of the present invention are as follows: 1. Place the outer box on the top of another outer box. The limiting block passes through the limiting hole. Place the items in the inner box, and push the inner box into the outer box. The pressing plate presses the translation rod through the second inclined surface. Under the action of the rotating block, the limiting rod is inserted into the clamping groove, which can make the positions of the stacked outer boxes relatively fixed, realize the automatic locking of the outer box, reduce the risk of the outer box tipping over during stacking, and improve the stacking stability and operation convenience.

[0014] 2. After the inner box is pushed into the outer box, drive the rotating disk to rotate through the pull ring. The rotating disk pushes the convex block through the arc-shaped groove, drives the insertion rod to slide and pass through the square hole, and the insertion rod extends into the insertion hole, so that the positions of the inner box and the outer box are relatively fixed through the cooperation of the insertion rod and the insertion hole.

[0015] 3. When the inner box is pulled out, pull out the storage frame upwards, place the items on the partition board in categories, and the baffle plays a role in blocking the items to prevent the items from sliding off the partition board, so as to classify and store the items and improve the practicability. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the state of the present invention during stacking.

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure when the inner box of the present invention is pulled out, where the outer box is cut open.

[0019] Figure 4 This is a front view of the inner box, the insertion rod and the extrusion plate of the present invention.

[0020] Figure 5 This is a partially sectional structure schematic diagram of components such as the outer box, the inner box, the limiting block, the first connecting block, the limiting rod and the extrusion plate of the present invention.

[0021] Figure 6 For the present invention Figure 5 An enlarged view of part A in.

[0022] Figure 7 This is a schematic diagram of the structure of the insertion rod, the rotating disc, the fixed block, the rotating rod and the pull ring of the present invention.

[0023] Figure 8 This is a side view of the insertion rod, the rotating disc and the convex block of the present invention.

[0024] Figure 9 This is a top view of the limiting block, the first connecting block, the limiting rod, the second connecting block, the translation rod, the rotating block and the extrusion plate of the present invention.

[0025] Figure 10 For the present invention Figure 9 A schematic diagram of the state after the limiting rod slides.

[0026] Figure 11 This is a schematic diagram of the structure of the storage frame, the partition board and the baffle of the present invention.

[0027] Explanation of reference numerals: 1. Outer box, 10. Limiting strip, 2. Inner box, 21. Bottom plate, 22. Front and rear side plates, 23. Left side plate, 24. Right side plate, 25. Inner side plate, 3. Limiting block, 30. Limiting hole, 31. Card slot, 32. First inclined surface, 4. Insertion rod, 401. Square hole, 402. Insertion hole, 41. Rotating disc, 42. Arc-shaped groove, 43. Convex block, 44. Fixed block, 45. Rotating rod, 46. Pull ring, 5. First connecting block, 6. Limiting rod, 61. Second connecting block, 62. Translation rod, 63. Rotating block, 64. Extrusion plate, 65. Second inclined surface, 71. Storage frame, 72. Through hole, 73. Partition board, 74. Baffle, 8. Rotating plate, 80. Embedding hole. Detailed implementation manners

[0028] Embodiment 1: A combined storage box that is convenient for stacking, as Figures 1-6As shown in the figure, it includes an outer box 1, an inner box 2, a limiting block 3 and a plug rod 4. The right side of the outer box 1 is open. There is a slidable inner box 2 inside the outer box 1. The inner box 2 has two states of being pulled out and pushed in. Limiting blocks 3 are fixedly connected to the four corners of the top of the outer box 1. Limiting holes 30 for the limiting blocks 3 to extend into are opened at the four corners of the bottom of the outer box 1. The tops of the limiting blocks 3 all have a first inclined surface 32. The inner box 2 is composed of a bottom plate 21, front and rear side plates 22, a left side plate 23, a right side plate 24 and an inner side plate 25. The two front and rear side plates 22 are respectively connected to the front and rear sides of the bottom plate 21. The left side plate 23 is connected to the left sides of the two front and rear side plates 22. The right side plate 24 is connected to the right sides of the two front and rear side plates 22. The inner side plate 25 is connected between the two front and rear side plates 22. The bottom surfaces of the left side plate 23 and the right side plate 24 are both lower than the bottom plate 21. There are two plug rods 4 sliding back and forth on the left side of the right side plate 24. Square holes 401 for the plug rods 4 to pass through are opened at the right parts of the front and rear side plates 22. Jacks 402 for the plug rods 4 to pass through are opened at the right parts of the front and rear sides of the outer box 1. When the inner box 2 is pushed in, the plug rods 4, the square holes 401 and the jacks 402 are aligned in the front and rear directions. Two symmetric limiting strips 10 are fixedly connected to the right side inside the outer box 1. When the inner box 2 is pulled out, the right side of the left side plate 23 will contact the left side of the limiting strip 10, so as to limit the pulling-out position of the inner box 2 through the limiting strip 10.

[0029] As Figure 1 , Figure 2 , Figure 7 and Figure 8 shown, the stackable combined storage box further includes a rotating disk 41, a convex block 43, a fixed block 44, a rotating rod 45 and a pull ring 46. A circular hole is opened at the center of the right side plate 24. A rotating disk 41 is rotatably connected to the right side plate 24 at the circular hole. Two centrally symmetric arc-shaped grooves 42 are opened on the left side of the rotating disk 41. The arc-shaped grooves 42 are divided into a proximal end close to the center of the rotating disk 41 and a distal end far from the center of the rotating disk 41. The mutually approaching ends of the two plug rods 4 are rotatably connected with convex blocks 43. The two convex blocks 43 are respectively located at the proximal ends of the two arc-shaped grooves 42. The rotating rotating disk 41 makes the two convex blocks 43 move in opposite directions through the arc-shaped grooves 42. A fixed block 44 is fixedly connected to the right side of the rotating disk 41. A rotating rod 45 is rotatably connected to the fixed block 44. A pull ring 46 is fixedly connected to the rotating rod 45.

[0030] As Figure 3 , Figure 5 and Figure 6 shown, the stackable combined storage box further includes a first connecting block 5 and a limiting rod 6. Two pairs of first connecting blocks 5 are fixedly connected to the inner bottom of the outer box 1. Limiting rods 6 sliding left and right are arranged on the first connecting blocks 5. Card slots 31 for the limiting rods 6 to extend into are opened on the right sides of the two left limiting blocks 3 and the left sides of the two right limiting blocks 3. When two outer boxes 1 are stacked, the limiting blocks 3 on the top of the lower outer box 1 pass through the limiting holes 30 at the bottom of the upper outer box 1, and the limiting rods 6 of the upper outer box 1 will extend into the card slots 31 after sliding.

[0031] As Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 9 and Figure 10 shown, the stackable combined storage box further includes a second connecting block 61, a translation rod 62, a rotating block 63 and a pressing plate 64. Two second connecting blocks 61 are fixedly connected to the inner bottom of the outer box 1. The second connecting blocks 61 are each provided with a translation rod 62 that slides back and forth. The translation rod 62 is L-shaped. An elastic member is fixedly connected between the translation rod 62 and the second connecting block 61. The elastic member is a return spring. A rotating block 63 is rotatably connected between the mutually approaching ends of each pair of limiting rods 6 and the translation rod 62 on the same side. A pressing plate 64 is fixedly connected to the bottom of the bottom plate 21 of the inner box 2. Both the front and rear sides of the left end of the pressing plate 64 have a second inclined surface 65 for pressing the translation rod 62.

[0032] The first outer box 1 is placed on the ground, and the inner box 2 in the second outer box 1 is in the pulled-out state as Figure 3 shown. The second outer box 1 is placed on top of the first outer box 1. The limiting block 3 on the top of the first outer box 1 passes through the limiting hole 30 at the bottom of the second outer box 1. The limiting block 3 has a first inclined surface 32, which facilitates the alignment of the limiting block 3 with the limiting hole 30. At this time, items can be placed inside the second inner box 2 for storage.

[0033] Then, by pushing the pull ring 46, the second inner box 2 is pushed into the second outer box 1, driving the upper pressing plate 64 to move leftward. The upper pressing plate 64 presses the two translation rods 62 in the second outer box 1 through the two second inclined surfaces 65. These two translation rods 62 slide in the front-rear direction away from each other, and the return spring is compressed. Driven by the rotating block 63, the limiting rods 6 slide in the left-right direction. The four limiting rods 6 slide toward the four limiting blocks 3 respectively, and the limiting rods 6 are inserted into the card slots 31. The state of the limiting rods 6 after sliding is as Figure 10 shown. Similarly, continue to stack the other outer boxes 1. In this way, through the cooperation of the limiting rods 6 and the limiting blocks 3, the positions of the stacked outer boxes 1 can be relatively fixed, preventing horizontal displacement between the upper and lower outer boxes 1, and realizing the automatic locking of the outer boxes 1, reducing the risk of the outer boxes 1 tipping over during stacking, and improving the stacking stability.

[0034] After the inner box 2 is pushed into the outer box 1, the insertion rods 4, the square holes 401 and the jacks 402 are aligned in the front-back direction. By pushing the pull ring 46, the fixed block 44 and the rotating disk 41 are driven to rotate together. The rotating rotating disk 41 pushes the two bumps 43 away from each other through the arc-shaped groove 42. The bumps 43 are located at the distal end of the arc-shaped groove 42, driving the two insertion rods 4 to slide away from each other in the front-back direction. The insertion rods 4 pass through the square holes 401, and the end parts of the two insertion rods 4 respectively extend into the two jacks 402. Thus, the positions of the inner box 2 and the outer box 1 are relatively fixed through the cooperation of the insertion rods 4 and the jacks 402, and the locking method of the inner box 2 is stable and convenient.

[0035] When it is necessary to take and place the items inside the inner box 2, the rotating disk 41 is driven to rotate in the reverse direction through the pull ring 46. The reversely rotating rotating disk 41 pushes the two bumps 43 closer to each other through the arc-shaped groove 42. The bumps 43 are located at the proximal end of the arc-shaped groove 42, driving the two insertion rods 4 to slide closer to each other in the front-back direction. The insertion rods 4 leave the jacks 402, and then the inner box 2 can be pulled out to take and place the items. The pressing plate 64 moves to the right along with the inner box 2; during the process of taking and placing the items, the pressing plate 64 keeps pressing the translation rod 62, and the limiting rod 6 keeps inserted into the card slot 31; when it is necessary to separate the stacked outer boxes 1, the inner box 2 is pulled out further to the right until the right side of the left side plate 23 contacts the left side of the limiting strip 10, and the pressing plate 64 is separated from the translation rod 62. The pressing plate 64 no longer presses the translation rod 62. Under the action of the return spring, the translation rod 62 slides back to its original position, driving the limiting rod 6 to slide back to its original position through the rotating block 63. The limiting rod 6 leaves the card slot 31, and then the stacked outer boxes 1 can be separated, and the operation is convenient.

[0036] Embodiment 2: On the basis of Embodiment 1, as Figure 1 and Figure 11 shown, the combined storage box convenient for stacking further includes a storage frame 71, a partition plate 73 and a baffle 74. Three storage frames 71 are placed inside the inner box 2. Through holes 72 are opened at the tops of the storage frames 71. Two partition plates 73 are fixedly connected inside each storage frame 71, and baffles 74 are fixedly connected to the right sides of the partition plates 73; when the inner box 2 is pulled out, the storage frame 71 is pulled out upwards, the items are classified and placed on the partition plates 73, and the baffles 74 play a role in blocking the items to prevent the items from sliding off the partition plates 73. Then the storage frame 71 is pushed into the inner box 2. In this way, the items can be classified and stored, improving the practicality.

[0037] As Figure 1 、 Figure 2 and Figure 5As shown in the figure, the stackable combined storage box further includes a rotating plate 8. Embedding holes 80 are formed on both the front and rear sides of the outer box 1, and rotating plates 8 are rotatably connected to the outer box 1 at the embedding holes 80. The rotating plates 8 are located within the embedding holes 80, and the side surfaces of the rotating plates 8 are flush with the side surfaces of the outer box 1. By pulling the rotating plates 8 to rotate upwards and holding the rotating plates 8 to assist in moving the position of the outer box 1, it is convenient to transfer the outer box 1.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A combined storage box convenient for stacking, comprising an outer box (1) and an inner box (2). One side of the outer box (1) is open, and the inner box (2) is slidably arranged inside the outer box (1), characterized in that, At the four corners of the top of the outer box (1), there are limit blocks (3) connected. At the four corners of the bottom of the outer box (1), there are limit holes (30) for the limit blocks (3) to extend into. The inner box (2) is composed of a bottom plate (21), front and rear side plates (22), a left side plate (23), a right side plate (24), and an inner side plate (25). The bottom surfaces of the left side plate (23) and the right side plate (24) are lower than the bottom plate (21). On the side surface of the right side plate (24), there are two sliding insertion rods (4). Square holes (401) for the insertion rods (4) to pass through are opened on the front and rear side plates (22). Insertion holes (402) for the insertion rods (4) to pass through are opened on the outer box (1). When the inner box (2) is pushed in, the insertion rods (4), the square holes (401), and the insertion holes (402) are aligned.

2. The modular storage box according to claim 1, which is convenient for stacking, is characterized in that, Two limit strips (10) are connected inside the outer box (1).

3. The modular storage box facilitating stacking according to claim 2, characterized in that, The stackable combined storage box further includes a rotating disk (41), a convex block (43), a fixing block (44), a rotating rod (45), and a pull ring (46). A circular hole is opened at the center of the right side plate (24). The right side plate (24) is rotatably connected with a rotating disk (41) at the circular hole. Two centrally symmetric arc-shaped grooves (42) are opened on the rotating disk (41). The arc-shaped grooves (42) are divided into a proximal end close to the center of the rotating disk (41) and a distal end far from the center of the rotating disk (41). The mutually approaching ends of the two insertion rods (4) are rotatably connected with convex blocks (43). The two convex blocks (43) are respectively located in the two arc-shaped grooves (42). The rotating rotating disk (41) makes the two convex blocks (43) move in opposite directions through the arc-shaped grooves (42). A fixing block (44) is connected to the rotating disk (41). A rotating rod (45) is rotatably connected to the fixing block (44). A pull ring (46) is connected to the rotating rod (45).

4. The modular storage box facilitating stacking according to claim 3, wherein The stackable combined storage box further includes a first connecting block (5) and a limit rod (6). Two pairs of first connecting blocks (5) are connected to the inner bottom of the outer box (1). The first connecting blocks (5) are respectively provided with sliding limit rods (6). On the side of the limit block (3) close to the limit rod (6), there are card slots (31) for the limit rods (6) to extend into. When two outer boxes (1) are stacked, the limit blocks (3) at the top of the lower outer box (1) pass through the limit holes (30) at the bottom of the upper outer box (1). After the limit rods (6) of the upper outer box (1) slide, they will extend into the card slots (31).

5. The modular storage box facilitating stacking according to claim 4, characterized in that, The tops of the limit blocks (3) all have a first inclined surface (32).

6. The modular storage box facilitating stacking according to claim 5, characterized in that, The stackable combined storage box further includes a second connecting block (61), a translation rod (62), a rotating block (63) and a pressing plate (64). Two second connecting blocks (61) are connected to the inner bottom of the outer box (1). The second connecting blocks (61) are each provided with a sliding translation rod (62). An elastic member is connected between the translation rod (62) and the second connecting block (61). A rotating block (63) is rotatably connected between one end of each pair of limiting rods (6) close to each other and the translation rod (62) on the same side. A pressing plate (64) is connected to the bottom of the bottom plate (21). Both sides in front of the end of the pressing plate (64) are each provided with a second inclined surface (65) for pressing the translation rod (62).

7. A combined storage box facilitating stacking according to claim 6, characterized in that The stackable combined storage box further includes a storage frame (71), a partition plate (73) and a baffle (74). A storage frame (71) is placed inside the inner box (2). A through hole (72) is opened at the top of the storage frame (71). Partition plates (73) are connected inside the storage frame (71). Baffles (74) are connected to the partition plates (73).

8. The modular storage box facilitating stacking according to claim 7, wherein The stackable combined storage box further includes a rotating plate (8). Embedding holes (80) are opened on both sides of the outer box (1). A rotating plate (8) is rotatably connected to the outer box (1) at the embedding holes (80).

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