Two-stage buckle and stacking assembly containing the same

Abstract

The present invention discloses a two-stage buckle, which is used for fixing a stacking component assembly, including a fixing seat fixed on the side wall of the component to be stacked, a first swing frame rotatably connected to the fixing seat, the upper end of the first swing frame is hinged to the fixing seat, and the lower end is hinged to a second swing frame, and the second swing frame is hinged to a positioning buckle at one end away from the first swing frame, and the second swing frame can be turned up and down along the first swing frame so that the positioning buckle is engaged with a clamping seat at different heights. The structure is simple, divided into two stages, and can be clamped with clamping seats at different heights to improve the versatility of the positioning buckle. A stacking component including the two-stage buckle is also disclosed, which is convenient for realizing the stacking and fixing of storage boxes, has strong combinability, and improves the stability of the stacking component.

Description

Technical Field

[0001] The present invention relates to the technical field of storage boxes, and in particular to a two-stage interlocking and a stacking assembly containing the same. Background Art

[0002] In order to save space and facilitate transportation, it is often necessary to stack items, especially storage boxes for easy storage. Storage boxes are a commonly used storage container. Due to their simple structure and low cost, they are very popular. The storage box includes a box body and a cover body that covers the opening of the box body, and the box body and the cover body are connected by positioning buckles. However, when the storage boxes are stacked in large quantities, in addition to the firmness of the box body, its stability is also very important. As the stacking height continues to increase, there are great safety hazards. A storage box can easily slide off another storage box, which is very inconvenient to use. Usually, positioning buckles or straps are required to fix the stacked storage boxes. However, the positioning buckle has a limited snap-on angle and can only snap on the corresponding cover body or another box body. It cannot be selected according to actual usage, which brings great inconvenience to the stacking of storage boxes. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the purpose of the present invention is to provide a two-stage buckle, which is divided into two stages and can be clamped to sockets of different heights to improve the versatility of the positioning buckle.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a two-stage buckle for fixing a stacking component assembly, characterized in that it includes a fixed base fixed on the side wall of the component to be stacked, and a first swing frame is rotatably connected to the fixed base, the upper end of the first swing frame is hinged to the fixed base, and the lower end is hinged to a second swing frame, and the second swing frame is hinged to a positioning buckle at one end away from the first swing frame, and the second swing frame can be flipped up and down along the first swing frame so that the positioning buckle can be engaged with the base at different heights.

[0005] The beneficial effects of the present invention are: adding a second swing frame, the second swing frame can be flipped up and down relative to the end of the first swing frame, when the second swing frame flips upward relative to the first swing frame, the height that the positioning buckle can reach increases, and then the first swing frame and the positioning buckle are rotated, and the positioning buckle is clamped on the high-positioned card seat to complete the first-level clamping; when the second swing frame flips downward relative to the first swing frame, the height that the positioning buckle can reach decreases, and then the first swing frame and the positioning buckle are rotated, and the positioning buckle is clamped on the low-positioned card seat to complete the second-level clamping. The difference in the height of the two-level clamping can be adjusted by the length of the second swing frame. This two-level clamping buckle can quickly clamp card seats of different heights and has high versatility.

[0006] Furthermore, the second swing frame includes swing blocks located on both sides of the first swing frame and arranged in parallel, one end of the swing block is hinged to the first swing frame through a rotating shaft, the rotating shaft is fixed to the swing block, and the first swing frame can rotate along the rotating shaft. The first swing frame has a through hole for the rotating shaft to pass through. In order to facilitate the connection, the rotating shaft passes through the through hole and is fixed to the two swing blocks. The diameter of the through hole of the first swing frame is larger than the diameter of the rotating shaft. The first swing frame can rotate along the rotating shaft, that is, the second swing frame can be flipped up and down relative to the first swing frame along the rotating shaft.

[0007] Specifically, the positioning buckle includes two side plates and a horizontal plate therebetween, the upper ends of the side plates are provided with a clamping plate, the clamping plate is provided with a clamping block corresponding to the clamping seat, and a cavity that can cover the outside of the fixed seat and the clamping seat is defined between the side plates, the horizontal plate and the clamping plate. When the positioning buckle is engaged with the clamping seat, the fixed seat and the clamping seat can be effectively protected, and the stability of the clamping connection can be improved.

[0008] Furthermore, the lower outer walls of the two swing blocks are provided with second pivots, and the lower ends of the side plates are provided with second pivot holes corresponding to the second pivots. The cooperation between the second pivots and the second pivot holes ensures that the positioning buckle can rotate relative to the second swing frame.

[0009] Furthermore, the second swing frame further comprises a limit rod located between the two swing blocks, and the limit rod abuts against the first swing frame when the second swing frame flips upward. The limit rod improves stability and limits the flipping angle of the second swing frame.

[0010] Specifically, the two side walls of the fixing seat have corresponding first pivot holes, the first swing frame includes swing arms located on both sides of the fixing seat, the swing arms are provided with first pivot columns corresponding to the first pivot holes, and the first pivot columns are rotatably connected to the first pivot holes, so as to improve the swing stability of the first swing frame.

[0011] Furthermore, the fixed seat includes two fixed plates arranged at intervals, one end of the first swing frame is located between the two fixed plates and is rotatably connected to the fixed plates. Two opposite surfaces of the fixed plates are provided with third pivot holes, and the side wall of the first swing frame is provided with a third pivot column arranged corresponding to the third pivot hole, and the third pivot column can rotate in the third pivot hole, so that the first swing frame can swing up and down relative to the fixed seat.

[0012] The present invention also provides a stacking assembly, which can make the stacked stacking assembly more stable through the buckling of the two-stage buckle, and the setting of the two-stage buckle makes the stacking assembly more convenient.

[0013] In order to achieve the above purpose, the technical solution adopted by the present invention is: a stacking assembly, including a plurality of storage boxes and box covers arranged corresponding to the storage boxes, each of the storage boxes is provided with the above-mentioned two-stage buckle, and the storage boxes and the box covers are provided with sockets that are engaged with the two-stage buckles, and the double two-stage buckles can be engaged with the sockets of the box covers or adjacent storage boxes.

[0014] When the storage boxes need to be stacked, the first stage of the two-stage buckle can be used to snap into the card seat on the storage box adjacent to the storage box and located above it, and the storage boxes can be stacked one by one. The two-stage buckle on the storage box at the top can be adjusted to the second stage by swinging the second swing frame, and directly snap into the card seat on the box cover, which is convenient for the combination and stacking of the stacking components.

[0015] Furthermore, the side walls of the storage box body and the box cover are correspondingly provided with clearance grooves, and the two-stage buckle and the card seat are arranged in the clearance grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural diagram of the first embodiment of the present invention

[0017] Figure 2 It is an exploded view of the first embodiment of the present invention;

[0018] Figure 3 This is a comparison diagram of the first embodiment of the present invention in two gear states;

[0019] Figure 4 Schematic diagram of the position of the second swing frame when the two-stage buckle is in the first stage in the first embodiment of the present invention;

[0020] Figure 5 Schematic diagram of the position of the second swing frame when the two-stage buckle is in the second stage in the first embodiment of the present invention;

[0021] Figure 6 It is a cross-sectional view of the two-stage buckle in the first embodiment of the present invention when it is in the first stage;

[0022] Figure 7 It is a cross-sectional view of the two-stage buckle in the first embodiment of the present invention when it is in the second stage;

[0023] Figure 8 It is a schematic diagram of the connection between the fixing base and the first swing frame in the second embodiment of the present invention;

[0024] Fig. 9 It is a three-dimensional diagram of the third embodiment of the present invention;

[0025] Fig.10 An exploded view of a storage box in Embodiment 3 of the present invention;

[0026] Fig.11It is a three-dimensional diagram of the transport trolley in the third embodiment of the present invention.

[0027] In the figure:

[0028] 1. Fixed seat; 11. First pivot hole; 2. First swing frame; 21. Through hole; 22. Swing arm; 23. First pivot column; 3. Second swing frame; 31. Swing block; 32. Second pivot column; 33. Limit rod; 4. Positioning buckle; 41. Side plate; 42. Horizontal plate; 43. Clamping plate; 44. Second pivot hole; 5. Clamping seat; 6. Rotating shaft;

[0029] 100, two-stage buckle; 200, storage box; 2a, clearance groove; 300, box cover; 400, transport trolley; 4a, placement plate; 4b, roller; 4c, groove; 4d, spring buckle. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0031] Example 1

[0032] See attached Figure 1-2 As shown, a two-stage buckle of the present invention is used for fixing stacking components and is arranged on the stacked items. The stacked items can be storage boxes or other items to be stacked such as workbenches. It includes a fixed seat 1 fixed on the side wall of the items to be stacked, and a first swing frame 2 is rotatably connected to the fixed seat 1. The upper end of the first swing frame 2 is hinged to the fixed seat 1, and the lower end is hinged to a second swing frame 3. One end of the second swing frame 3 is hinged to the first swing frame 2. The end of the second swing frame 3 away from the first swing frame 2 is hinged to a positioning buckle 4, and one end of the positioning buckle 4 is hinged to the second swing frame 3. The second swing frame 3 can be flipped up and down along the first swing frame 2 so that the positioning buckle 4 is engaged with a clamping seat 5 located at different heights. The clamping seat 5 is arranged on the objects to be stacked.

[0033] The two-stage buckle 100 adds a second swing frame 3, which can be turned upside down relative to the end of the first swing, and the fixed seat 1, the first swing frame 2, the second swing frame 3 and the positioning buckle 4 are hinged in sequence to form a linkage. Figure 4 and attached Figure 6 When the second swing frame 3 is flipped upward relative to the first swing frame 2, the height that the positioning buckle 4 can reach increases. When the second swing frame 3 is locked, the first swing frame 2 is rotated upward. When the positioning buckle 4 is locked to the base 5, the end of the positioning buckle 4 away from the base 5 is pressed to make the positioning buckle 4 flip down along the base 5. At this time, the first swing frame 2 is driven to flip downward synchronously, so that the positioning buckle 4 is locked on the base 5 at a high position, and the first level of locking is completed. See attached Figure 3 See Attachment 1. Figure 5 and attached Figure 7 When the second swing frame 3 is turned downward relative to the first swing frame 2, the height that the positioning buckle 4 can reach is reduced, and then the first swing frame 2 and the positioning buckle 4 are rotated to clamp the positioning buckle 4 on the lower clamping seat 5 to complete the second level of clamping, see the attached Figure 3 The difference between the two-stage clamping heights can be adjusted by the length of the second swing frame 3, and the size of the second swing frame 3 can be adjusted according to the needs. The two-stage buckle 100 can quickly clamp the clamping seats 5 of different heights and has high versatility.

[0034] The two side walls of the fixed seat 1 have corresponding first pivot holes 11, and the first swing frame includes swing arms 22 located on both sides of the fixed seat 1. The swing arms 22 are provided with first pivot columns 23 corresponding to the first pivot holes 11. The first pivot columns 23 are rotatably connected to the first pivot holes 11 to realize the up and down swinging of the first swing frame, thereby improving the swinging stability of the first swing frame 2.

[0035] The second swing frame 3 includes swing blocks 31 located on both sides of the first swing frame 2 and arranged in parallel. One end of the swing block 31 is hinged to the first swing frame 2 through the rotating shaft 6. The rotating shaft 6 is fixed to the swing block 31. The first swing frame 2 has a through hole 21 for the rotating shaft 6 to pass through and can rotate along the rotating shaft 6. In order to facilitate the connection, the rotating shaft 6 passes through the through hole 21 and is fixed to the two swing blocks 31. The diameter of the through hole 21 of the first swing frame 2 is larger than the diameter of the rotating shaft 6, so that the first swing frame 2 can rotate along the rotating shaft 6, that is, the second swing frame 3 can be turned up and down relative to the first swing frame 2 along the rotating shaft 6.

[0036] The second swing frame 3 further includes a limiting rod 33 located between the two swing blocks 31, and the limiting rod 33 abuts against the first swing frame 2 when the second swing frame 3 flips upward. The limiting rod 33 improves stability and limits the flip angle of the second swing frame 3.

[0037] The positioning buckle 4 includes two side panels 41 and a transverse panel 42 located therebetween. A card plate 43 is provided at the upper end of the side panel 41. A card block corresponding to the card seat 5 is provided on the card plate 43. A cavity that can cover the outside of the fixed seat 1 and the card seat 5 is defined between the side panels 41, the transverse panel 42 and the card plate 43. When the positioning buckle 4 is engaged with the card seat 5, the fixed seat 1 and the card seat 5 can be effectively protected and the stability of the card connection can be improved. A plurality of anti-skid convex strips parallel to each other are provided on the transverse panel 42. The anti-skid convex strips are provided at the lower end of the transverse panel 42 to increase the friction force, so that the operator can hold the area provided with the anti-skid convex strips and apply external force to complete the engagement of the positioning buckle 4 and the card seat 5.

[0038] The lower outer wall of the two swing blocks 31 is provided with a second pivot column 32, and the lower end of the side plate 41 is provided with a second pivot hole 44 corresponding to the second pivot column 32. The cooperation between the second pivot column 32 and the second pivot hole 44 ensures that the positioning buckle 4 can rotate relative to the second swing frame 3.

[0039] Example 2

[0040] In this embodiment, the fixed seat 1 includes two fixed plates arranged at intervals, and one end of the first swing frame 2 is located between the two fixed plates and is rotatably connected to the fixed plates. A third pivot hole is provided on two opposite surfaces of the fixed plate, and a third pivot column corresponding to the third pivot hole is provided on the side wall of the first swing frame 2. The third pivot column can rotate in the third pivot hole, so that the first swing frame can swing up and down relative to the fixed seat. The other structures are the same as those in Example 1. The structures of the fixed seat, the first swing frame and the second swing frame are not limited thereto, as long as one end of the first swing frame is hinged to the fixed seat and the other end is hinged to the end of the second swing frame.

[0041] Example 3

[0042] The present invention also provides a stacking assembly, which can make the stacked assembly more stable through the buckling of the two-stage buckle 100, and the setting of the two-stage buckle 100 makes the stacking assembly more convenient.

[0043] See attached Figure 8-9 As shown, the stacking assembly includes a plurality of storage boxes 200 and a box cover 300 corresponding to the storage boxes 200. The stacking assembly is not limited to the storage boxes 200, and can be any product that needs to be stacked. Here, the storage box 200 is used for illustration. Each storage box 200 is provided with the above-mentioned two-stage buckle 100. The storage box 200 and the box cover 300 are provided with a holder 5 that is engaged with the two-stage buckle 100. The double two-stage buckle 100 can be engaged with the box cover 300 or the holder 5 of the adjacent storage box 200. The side walls of the storage box 200 and the box cover 300 are correspondingly provided with a clearance groove 2a, and the two-stage buckle 100 and the holder 5 are arranged in the clearance groove 2a. The side walls of the storage box 200 and the box cover 300 can also be provided with a convex seat, as long as it is convenient to place the two-stage buckle 100 and the holder 5.

[0044] When the storage boxes 200 need to be stacked, the first stage of the two-stage buckle 100 can be used to engage the holder 5 on the storage box 200 adjacent to and located above the storage box 200, and the storage boxes 200 can be stacked one by one. The two-stage buckle 100 on the storage box 200 at the top can be adjusted to the second stage by swinging the second swing frame 3, and directly engage the holder 5 on the box cover 300, so as to facilitate the combination and stacking of the stacking components.

[0045] See attached Fig.10As shown, in order to facilitate the transportation of the stacking assembly, a transport trolley 400 is also included. The transport trolley 400 includes a placement plate and four rollers located at the lower end of the placement plate. A groove for embedding the stacking assembly is provided on the upper surface of the placement plate, and spring buckles corresponding to the holder 5 on the storage box 200 are provided around the groove. The spring buckles can swing relative to the placement plate to clamp the holder 5 located at the lower end.

[0046] The above implementation modes are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A two-stage buckle for fixing a stacking component assembly, characterized in that: The invention comprises a fixed seat (1) fixed on the side wall of the stacked piece, the fixed seat (1) being rotatably connected to a first swing frame (2), the upper end of the first swing frame (2) being hinged to the fixed seat (1), and the lower end being hinged to a second swing frame (3), the end of the second swing frame (3) away from the first swing frame (2) being hinged to a positioning buckle (4), the second swing frame (3) being able to flip up and down along the first swing frame (2) so that the positioning buckle (4) is engaged with a clamping seat (5) located at a different height; The second swing frame (3) comprises swing blocks (31) located on both sides of the first swing frame (2) and arranged in parallel, one end of the swing block (31) is hinged to the first swing frame (2) via a rotating shaft (6), the rotating shaft (6) and the swing block (31) are fixedly connected, the first swing frame (2) can rotate along the rotating shaft (6), and the second swing frame (3) also comprises a limit rod (33) located between the two swing blocks (31); The positioning buckle (4) comprises two side plates (41) and a transverse plate (42) located therebetween; a clamping plate (43) is provided at the upper end of the side plate (41); a clamping block corresponding to the clamping seat (5) is provided on the clamping plate (43); a cavity capable of covering the outside of the fixing seat (1) and the clamping seat (5) is defined between the side plates (41), the transverse plate (42) and the clamping plate (43).

2. The two-stage buckle according to claim 1, characterized in that: The lower outer walls of the two swing blocks (31) are provided with second pivot columns (32), and the lower end of the side plate (41) is provided with second pivot holes (44) corresponding to the second pivot columns (32).

3. The two-stage buckle according to claim 1, characterized in that: The two side walls of the fixed seat (1) have first pivot holes (11) arranged correspondingly, the first swing frame (2) comprises swing arms (22) located on both sides of the fixed seat (1), the swing arms (22) are provided with first pivot columns (23) arranged correspondingly to the first pivot holes (11), and the first pivot columns (23) are rotatably connected to the first pivot holes (11).

4. The two-stage buckle according to claim 1, characterized in that: The fixing seat (1) comprises two fixing plates arranged at an interval, and one end of the first swing frame (2) is located between the two fixing plates and is rotatably connected to the fixing plates.

5. A stacking assembly, characterized in that: The invention comprises a plurality of storage boxes (200) and box covers (300) arranged corresponding to the storage boxes (200), each of the storage boxes (200) being provided with a two-stage buckle (100) as claimed in any one of claims 1 to 4, the storage boxes (200) and the box covers (300) being provided with a socket (5) engaged with the two-stage buckle (100), and the two-stage buckle (100) being able to be engaged with the box cover (300) or the socket (5) of an adjacent storage box (200).

6. The stacking assembly according to claim 5, characterized in that: The side walls of the storage box body (200) and the box cover (300) are correspondingly provided with clearance grooves (2a), and the two-stage buckle (100) and the clamping seat (5) are arranged in the clearance grooves (2a).

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