Interlocking structure and box body

Abstract

The invention provides an interlocking structure and a box body, the interlocking structure comprises clamping grooves arranged in an upper box body and a lower box body and on two sides of the bottom of the upper box body and clamping blocks corresponding to the clamping grooves on the top of the lower box body, when two adjacent box bodies are stacked together, the clamping blocks are automatically clamped in the clamping grooves, and the interlocking structure further comprises an unlocking assembly located at the bottom of the upper box body and used for unlocking the upper box body and the lower box body. The limiting block is used for releasing limiting of the clamping block and the clamping groove on one side of the box body; and the pressing plate is located at the top of the lower box body, one end of the pressing plate is connected with all the clamping blocks on one side of the box body, and the corresponding clamping blocks can be driven to move in the direction away from the clamping grooves when the pressing plate is moved outwards. According to the invention, when the unlocking assembly is clamped, a user can manually press the pressing plate, so that the pressing plate drives the corresponding clamping block to move in the direction away from the clamping groove, the clamping block and the clamping groove on one side of the box body can be unlimited, and then the box body above can be directly lifted by another user, so that the upper box body and the lower box body are separated; and normal use of the combined tool box is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of box combinations, and particularly relates to an interlocking structure and a box. Background Art

[0002] The statements here only provide the background art related to the present invention, and do not necessarily constitute the prior art.

[0003] Currently, there appears on the market a combined toolbox in which multiple boxes can be stacked up and down. The upper and lower boxes are combined and spliced by a clamping connection method of clamping blocks and clamping grooves. The clamping blocks are located on the lower box. When two adjacent boxes are stacked together, the clamping blocks are automatically clamped in the clamping grooves of the upper box through torsion springs.

[0004] Since clamping blocks and clamping grooves are provided on at least two sides of the box, and usually two clamping blocks and clamping grooves are respectively provided on each side. In order to facilitate the user to release the limit between the upper and lower boxes, an unlocking component is provided on one side of the box to release the limit of the clamping blocks and clamping grooves on one side of the box (after the limit on one side is released, the limit on the other side does not need to be specifically released, and the upper box can be directly lifted to separate the two boxes);

[0005] However, the unlocking component often gets stuck due to many reasons such as lack of lubrication, rust, impurity blockage, etc., making it difficult to release the limit between the upper and lower boxes and affecting the normal use of the combined toolbox. Summary of the Invention

[0006] To solve the deficiencies mentioned in the above background art, the present invention particularly provides an interlocking structure and a box.

[0007] To achieve the above object, the technical solution of the present invention is realized as follows: An interlocking structure includes clamping grooves on both sides of the bottom of the upper box among the upper and lower boxes, and clamping blocks movably arranged at the corresponding clamping grooves on the top of the lower box. When two adjacent boxes are stacked together, one end of the clamping block moves from outside to inside and is automatically clamped in the clamping groove, and further includes:

[0008] An unlocking component, located at the bottom of the upper box, for releasing the limit of the clamping block and the clamping groove on one side of the box;

[0009] A pressing plate, located on the top of the lower box, one end of the pressing plate is connected to each clamping block on one side of the box, and moving the pressing plate outward can drive the corresponding clamping block to move away from the clamping groove.

[0010] Furthermore, the number of the pressing plates is equal to the number of the clamping blocks on one side of the box, and the pressing plates are respectively connected to the clamping blocks on one side of the box one by one.

[0011] Furthermore, two of the card block and two of the pressing plates are provided respectively, and the distance between the two pressing plates is greater than the standard length of a palm.

[0012] Furthermore, the unlocking assembly is located on the front side of the box body, and the pressing plate is located on the rear side of the box body.

[0013] Further, the unlocking assembly includes a mounting groove, the mounting groove is located at one side of the box body and is connected to each card slot on one side of the box body, a push block is slidably arranged at the position where the mounting groove is connected to each card slot, one side of the push block extends into the mounting groove, a movable rod is arranged in the mounting groove, a wedge block is arranged at the position of the movable rod corresponding to the push block, and moving the movable rod can drive the wedge block to abut against the inclined surface on the push block, so that the push block moves into the card slot until the card block located in the card slot is pushed out of the card slot;

[0014] A locking assembly is also included, which is used to lock the position of the movable rod after the card block exits the card slot.

[0015] Furthermore, the locking assembly includes a limit block vertically slidably arranged on the movable rod, the limit block moves with the movable rod, a clearance groove is provided at the position of the bottom of the box body corresponding to the limit block, the clearance groove is communicated with the installation groove, and a first elastic member is arranged between the limit block and the movable rod; the first elastic member is used to push one end of the limit block to move downward when the movable rod moves to drive the wedge block to abut against the inclined surface on the push block and push the card block in the card slot out of the card slot, so that one end of the limit block passes downward through the clearance groove and contacts the box body below;

[0016] It also includes a limit stop bar arranged on the top of the lower box body, and the limit stop bar is used to prevent the limit block from moving together with the movable rod that moves in the reset state;

[0017] It also includes a reset block arranged in the installation groove, and the reset block is used to push the limit block to move upward and reset when the upper and lower boxes are separated and the movable rod is reset and moved.

[0018] Furthermore, the movable rod is a rod body with a non-circular end cross-section, one end of the movable rod extends out of one side of the box body and is provided with a pushing portion. Operating the pushing portion can push the movable rod to move in the installation groove, and a movable groove is provided on one side of the corresponding pushing block of the movable rod. The wedge block can be detachably installed in the movable groove, one side of the pushing block extends into the movable groove and slides with the upper and lower sides of the notch of the movable groove, and the pushing block can move relative to the movable groove along the movement direction of the movable rod.

[0019] Furthermore, after the movable rod is reset, the side wall of the movable groove contacts one side of the pushing block.

[0020] Further, the pushing part is a trigger wrench. The top of the trigger wrench is located at the side of the box body for the finger to pull outward. The middle part of the trigger wrench is rotatably arranged in the installation groove. The bottom of the trigger wrench is in sliding contact with the end of the movable rod for pushing the movable rod to move to one side.

[0021] Further, the pushing part further includes an L-shaped fixing block. The fixing block is located at one end of the movable rod corresponding to the trigger wrench. The short side of the L-shaped fixing block is fixedly connected to the movable rod. A sliding groove is formed at the bottom of the trigger wrench. The long side of the L-shaped fixing block is inserted into the sliding groove. When the trigger wrench reciprocates, the long side of the fixing block will not come out of the sliding groove, and it can maintain the trigger wrench in an open state without resetting before the upper box body is lifted after the trigger wrench is pulled outward, providing the user with the unlocking state information.

[0022] Further, the unlocking component further includes a housing part detachably installed at the bottom of the box body. The installation groove is arranged in the housing part. The pushing block is slidably arranged in the housing part, so that the unlocking component as a whole forms an independently detachable and assembled combined component.

[0023] A box body is provided with the above-mentioned interlocking structure on the box body

[0024] Further, the top of the box body has a convex surface, and the side surface of the convex surface also serves as a limiting stop.

[0025] The beneficial effects of the present invention are reflected in:

[0026] In the present invention, when the unlocking component is stuck, the user can manually press the pressing plate to drive the corresponding clamping block to move away from the clamping groove, so that the clamping block and the clamping groove on one side of the box body can be released from the limit. After that, another user can directly lift the upper box body, so that the upper and lower box bodies are separated, ensuring the normal use of the combined toolbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In the drawings:

[0028] Figure 1 is the installation schematic diagram of the interlocking structure described in the present invention;

[0029] Figure 2 is Figure 1 the enlarged view of part A in

[0030] Figure 3 is the three-dimensional view of the unlocking component described in the present invention;

[0031] Figure 4 is the position schematic diagram of the pushing block described in the present invention;

[0032] Figure 5 Structural schematic diagram of the movable rod described in the present invention;

[0033] Figure 6 Position schematic diagram of the installation groove described in the present invention;

[0034] Figure 7 Structural schematic diagram of the locking component described in the present invention.

[0035] Explanation of reference numerals:

[0036] 1, clamping groove; 2, clamping block; 21, pressing plate; 3, housing part; 31, installation groove; 32, reset block; 33, second elastic member; 34, third elastic member; 4, pushing block; 5, movable rod; 51, wedge block; 52, movable groove; 6, locking component; 61, limiting block; 611, contact part; 62, first elastic member; 7, relief groove; 8, limiting bar; 9, pushing part; 91, trigger wrench; 92, fixing block. Detailed implementation manners

[0037] The following will further describe the present invention in detail with reference to the drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all of the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the invention without creative efforts shall fall within the scope of protection of the invention.

[0038] See Figures 1 to 7 .

[0039] The present invention discloses an interlocking structure, including clamping grooves 1 on both sides of the bottom of the upper box body provided in two upper and lower box bodies, and clamping blocks 2 movably arranged at the top of the lower box body corresponding to the clamping grooves 1. When two adjacent box bodies are stacked together, one end of the clamping block 2 moves from outside to inside and is automatically clamped in the clamping groove 1. The interlocking structure further includes:

[0040] An unlocking component, located at the bottom of the upper box body, for releasing the limitation of the clamping block 2 and the clamping groove 1 on one side of the box body;

[0041] A pressing plate 21, located at the top of the lower box body. One end of the pressing plate 21 is connected to each clamping block 2 on one side of the box body. Moving the pressing plate 21 outward can drive the corresponding clamping block 2 to move away from the clamping groove 1.

[0042] In a specific implementation, when the unlocking component is stuck, the user can manually press the pressing plate 21 so that the pressing plate 21 drives the corresponding card block 2 to move away from the card slot 1. In this way, the card block 2 and the card slot 1 on one side of the box can be released from the limit, and then the upper box can be directly lifted (two people can work together, one person presses the pressing plate 21, and the other person moves the box), so that the upper and lower boxes are separated, thereby ensuring the normal use of the modular tool box.

[0043] In one embodiment, an avoidance groove is further included. The avoidance groove is arranged at a position of the box body corresponding to the pressing plate 21 and is used to avoid the moving pressing plate 21.

[0044] In one embodiment, the number of the pressing plates 21 is equal to the number of the card blocks 2 on one side of the box body, and the pressing plates are connected to the card blocks 2 on one side of the box body in a one-to-one correspondence.

[0045] There are two of the card block 2 and the pressing plate 21 respectively, and the distance between the two pressing plates 21 is greater than the standard length of a palm.

[0046] In the specific implementation, the user can only use two hands to press one of the pressing plates 21 to release the limit of the card block 2 and the card slot 1. In this way, the two hands can make the user press more evenly, and the box will be more stable and not easy to fall or tilt. At the same time, the independent pressing plate 21 can also make the appearance of the box look neater and more beautiful, and the cost will be lower.

[0047] Preferably, the palm adopts the standard length of an adult male's palm (refer to ISO 7250 human body size standard).

[0048] In one embodiment, the unlocking assembly is located at the front side of the box, and the pressing plate 21 is located at the rear side of the box. With this design, the unlocking assembly is located at the front side of the box, which is convenient for users to unlock and use. The pressing plate 21 is not on the same side as the unlocking assembly. On the one hand, because there is a clamping component on the front side of the box to clamp the box cover, the setting of the pressing plate 21 will squeeze the setting space of the clamping component. On the other hand, the pressing plate 21 located at the rear side of the box will also make the box as a whole more coordinated and beautiful. In addition, the unlocking assembly and the pressing plate 21 are not on the same side, which is also convenient for two people to work together (one person presses the pressing plate 21 from the back, and the other person moves the box from the front).

[0049] In one embodiment, the unlocking component includes an installation groove 31 which is located on one side of the box body and communicates with each card slot 1 on one side of the box body. A pushing block 4 is slidably arranged at the position where the installation groove 31 communicates with each card slot 1. One side of the pushing block 4 extends into the installation groove 31. An active rod 5 is arranged in the installation groove 31. A wedge-shaped block 51 is arranged at the position corresponding to the pushing block 4 on the active rod 5. Moving the active rod 5 can drive the wedge-shaped block 51 to abut against the inclined surface on the pushing block 4, so that the pushing block 4 moves into the card slot 1 until the clamping block 2 located in the card slot 1 is pushed out of the card slot 1.

[0050] It further includes a locking component 6 for locking the position of the active rod 5 after the clamping block 2 exits the card slot 1.

[0051] In specific implementation, there are many locking components 6 that can lock the position of the active rod 5. For example, an automatic telescopic locking mechanism similar to that in an automatic cylindrical pen is installed. By setting the spring in the automatic telescopic locking mechanism at one end in the moving direction of the active rod 5 and the rest of the automatic telescopic locking mechanism at the other end, manually push the active rod 5 to move to one side. After the active rod 5 moves in place, the position of the active rod 5 is automatically locked. Push the active rod 5 to move again, and the active rod 5 can automatically reset. Of course, the most commonly used ball detent limiting structure in the prior art can also be adopted. An limiting hole is opened in the box body, and the ball detent and the spring are arranged on the active rod 5. After the active rod 5 moves in place, the spring pushes the ball detent into the limiting hole to realize the limitation of the active rod 5. When unlocking the active rod 5, press the ball detent to exit the limiting hole to release the limitation of the active rod 5.

[0052] In this application, during operation, manually push the active rod 5 to move the active rod 5 together with the wedge-shaped block 51 thereon, so that the pushing block 4 moves into the card slot 1 until the clamping block 2 located in the card slot 1 is pushed out of the card slot 1, thus completing the unlocking between the upper and lower box bodies. The setting of the locking component 6 can prevent the displacement of the active rod 5 and the backward movement of the pushing block 4, and prevent the clamping block 2 from re-entering the card slot 1. In this application, when the unlocking component is normally unlocked, it can be operated by one person, and only one operation is required to complete the unlocking of the two box bodies, which is convenient to use.

[0053] Preferably, the clamping block 2 is rotatably arranged on the lower box body. A torsion spring (not shown in the figure) is arranged between the rotating shaft of the clamping block 2 and the box body. Driven by the torsion spring, the clamping block 2 moves towards the card slot 1 and engages with the card slot 1.

[0054] In one embodiment, the locking assembly 6 includes a limit block 61 vertically and slidably arranged on the movable rod 5. The limit block 61 moves together with the movable rod 5. At the position corresponding to the limit block 61 at the bottom of the box body, there is a relief groove 7. The relief groove 7 communicates with the installation groove 31. A first elastic member 62 is arranged between the limit block 61 and the movable rod 5. The first elastic member 62 is used to drive the wedge block 51 to abut against the inclined surface of the push block 4 and push the latch 2 in the card slot 1 out of the card slot 1 when the movable rod 5 moves, and push one end of the limit block 61 downward, so that one end of the limit block 61 passes through the relief groove 7 downward and contacts the lower box body.

[0055] It further includes a limit stop bar 8 arranged on the top of the lower box body. The limit stop bar 8 is used to prevent the limit block 61 from moving together with the movable rod 5 during reset movement.

[0056] It further includes a reset block 32 arranged in the installation groove 31. The reset block 32 is used to push the limit block 61 to move upward for reset when the upper and lower box bodies are separated and the movable rod 5 moves for reset.

[0057] In specific implementation, the limit block 61 moves together with the movable rod 5. After the latch 2 exits the card slot 1 and the movable rod 5 moves in place, the limit block 61 is released from the restraint of the reset block 32 and extends towards the limit stop bar 8 on the lower box body under the push of the first elastic member 62, and cooperates with the limit stop bar 8 to prevent the limit block 61 from moving for reset. After the upper and lower box bodies are separated, the limit block 61 and the limit stop bar 8 are automatically released from the limit relationship. At this time, when the movable rod 5 moves for reset, the limit block 61 will move upward for reset under the push of the reset block 32, which is convenient for the recombining of the upper and lower box bodies.

[0058] Preferably, the limit stop bar 8 is the groove wall of the groove on the top of the lower box body.

[0059] In one embodiment, a second elastic member 33 is arranged in the installation groove 31. The second elastic member 33 is used to push the movable rod 5 for reset. With this design, although the movable rod 5 can be reset manually without the second elastic member 33, after having the second elastic member 33, the convenience of the user can be further improved.

[0060] In one embodiment, the reset block 32 is an inclined surface block arranged in the installation groove 31. The inclined surface block is located at the relief groove 7. A contact portion 611 is arranged on one side of the limit block 61 corresponding to the inclined surface block. The contact portion 611 is in sliding contact with the inclined surface on the inclined surface block and is used to abut against the inclined surface on the inclined surface block to force the limit block 61 to move upward when the movable rod 5 is reset.

[0061] In one embodiment, a third elastic member 34 is further included, and the third elastic member 34 is used to push the pushing block 4 to move away from the card slot 1. With this design, it can be avoided that when the upper and lower boxes are stacked together again, the clamping block 2 cannot be engaged with the card slot 1 under the blockage of the pushing block 4 (because the clamping block 2 moves in an arc, while the pushing block 4 moves in a straight line, and the pushing block 4 is likely to push the clamping block 2 out of the card slot 1, and it is not easy for the clamping block 2 to move the pushing block 4 in turn).

[0062] Preferably, the third elastic member 34 can be arranged between the pushing block 4 and the box body, or between the pushing block 4 and the installation slot 31, or between the housing part 3 mentioned later and the pushing block 4, etc., and no specific limitation is made on its specific position.

[0063] Preferably, the first elastic member 62, the second elastic member 33 and the third elastic member 34 can all be springs.

[0064] In one embodiment, the movable rod 5 is a rod body with a non-circular cross-section at the end. One end of the movable rod 5 extends out of one side of the box body and is provided with a pushing portion 9. Operating the pushing portion 9 can push the movable rod 5 to move in the installation slot 31. An activity slot 52 is formed on one side of the movable rod 5 corresponding to the pushing block 4. The wedge-shaped block 51 is detachably installed in the activity slot 52. One side of the pushing block 4 extends into the activity slot 52 and is slidably matched with the upper and lower sides of the slot opening of the activity slot 52, and the pushing block 4 can move relative to the activity slot 52 along the movement direction of the movable rod 5.

[0065] In specific implementation, the detachable design of the wedge-shaped block 51 can replace the wedge-shaped block 51 when the wedge-shaped block 51 is severely worn; by allowing one side of the pushing block 4 to extend into the activity slot 52, on the one hand, it is convenient for assembly and positioning, and on the other hand, it can also prevent the pushing block 4 from tilting upward or downward under the action of external force; at the same time, the appearance of the movable rod 5 is more concise, and all parts are located inside the rod, which is convenient to sell the movable rod 5 as a single part.

[0066] Preferably, the pushing portion 9 is a block fixed at the end of the movable rod 5 for finger pressing.

[0067] In one embodiment, after the movable rod 5 is reset, the side wall of the activity slot 52 contacts one side of the pushing block 4. With this design, it can prevent the movable rod 5 from moving too much when the movable rod 5 is reset; and through this structure, there is no need to separately provide a structure for limiting the displacement distance of the movable rod 5, reducing the structural complexity and also reducing the production and manufacturing costs to a certain extent.

[0068] In one embodiment, to facilitate the user in pushing the movable rod 5, the pushing portion 9 is a trigger wrench 91. The top of the trigger wrench 91 is located at the side of the box body for the finger to pull outward. The middle of the trigger wrench 91 is rotatably arranged in the installation groove 31. The bottom of the trigger wrench 91 is in sliding contact with the end of the movable rod 5 for pushing the movable rod 5 to move to one side. With this design, the difficulty of pushing the movable rod 5 is reduced, making it convenient for the user to use.

[0069] In one embodiment, the pushing portion 9 further includes an L-shaped fixing block 92. The fixing block 92 is located at one end of the movable rod 5 corresponding to the trigger wrench 91. The short side of the L shape of the fixing block 92 is fixedly connected to the movable rod 5. A sliding groove is formed at the bottom of the trigger wrench 91. The long side of the L shape of the fixing block 92 is inserted into the sliding groove. When the trigger wrench 91 reciprocates, the long side of the L shape of the fixing block 92 will not come out of the sliding groove. With this design, when the movable rod 5 resets, the trigger wrench 91 can be driven to reset by the L-shaped fixing block 92, and there is no need to set a reset torsion spring on the trigger wrench 91. Moreover, after the trigger wrench 91 is pulled outward, before the upper box body is separated from the lower box body, the trigger wrench 91 can be maintained in an open state without resetting, providing the user with the unlocking state information. The user can perceive whether the upper and lower box bodies are in a locked state by observing the posture of the trigger wrench 91.

[0070] In one embodiment, the unlocking assembly further includes a housing portion 3 detachably installed at the bottom of the box body. The installation groove 31 and the third elastic member 34 are arranged in the housing portion 3. The pushing block 4 is slidably arranged in the housing portion 3, making the unlocking assembly form an independent detachable and assembled component as a whole. With this design, the unlocking assembly can be sold as an independent component as a whole, and during maintenance and replacement, the original unlocking assembly can also be directly removed and a new unlocking assembly can be replaced.

[0071] Preferably, an assembly groove is provided at the position of the box body corresponding to the housing portion 3 for installing the housing portion 33.

[0072] In one embodiment, a clamping groove 1 is provided on the housing portion 3 at one side of the box body corresponding to the housing portion 3. With this design, the overall accuracy will be higher, and it is not easy for the pushing block 4 and the clamping groove 1 to be misaligned.

[0073] The present invention also discloses a box body provided with the above-mentioned interlocking structure.

[0074] In one embodiment, the top of the box body has a convex surface, and the side surface of the convex surface also serves as a limiting stop 8. With this design, the shape of the surface of the box cover at the top of the box body is utilized. The convex surface (i.e., the large convex surface) is both the main bearing and stress surface, and the edge simultaneously plays a limiting role.

[0075] 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.

[0076] It should be noted that if there are directional indications (such as up and down) involved in the embodiments of the invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0077] In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, if there are descriptions such as "first" and "second" in the embodiments of the invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, "a plurality of" means two or more. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the invention.

Claims

1. An interlocking structure, characterized in that: The invention comprises slots (1) arranged in the upper and lower boxes, on both sides of the bottom of the upper box, and a card block (2) movably arranged on the top of the lower box corresponding to the slot (1); when two adjacent boxes are stacked together, one end of the card block (2) moves from the outside to the inside and is automatically stuck in the card slot (1); and further comprises: An unlocking component, located at the bottom of the upper box, is used to release the limit of the card block (2) and the card slot (1) on one side of the box; The pressing plate (21) is located at the top of the lower box body. One end of the pressing plate (21) is connected to each card block (2) on one side of the box body. Moving the pressing plate (21) outward can drive the corresponding card block (2) to move in a direction away from the card slot (1).

2. The interlocking structure according to claim 1, characterized in that: The number of the pressing plates (21) is equal to the number of the card blocks (2) on one side of the box body, and the pressing plates are connected to the card blocks (2) on one side of the box body in a one-to-one correspondence.

3. The unlocking assembly according to claim 2, characterized in that: The card block (2) and the pressing plate (21) are respectively provided in two pieces, and the distance between the two pressing plates (21) is greater than the standard length of a palm.

4. The interlocking structure according to claim 1, 2 or 3, characterized in that: The unlocking assembly is located on the front side of the box body, and the pressing plate (21) is located on the rear side of the box body.

5. The interlocking structure according to claim 1, 2 or 3, characterized in that: The unlocking component comprises an installation groove (31), the installation groove (31) is located at one side of the box body and is connected to each card slot (1) on the side of the box body, a pushing block (4) is slidably arranged at the position where the installation groove (31) is connected to each card slot (1), one side of the pushing block (4) extends into the installation groove (31), a movable rod (5) is arranged in the installation groove (31), and a wedge block (51) is arranged at the position of the movable rod (5) corresponding to the pushing block (4), and moving the movable rod (5) can drive the wedge block (51) to abut against the inclined surface on the pushing block (4), so that the pushing block (4) moves into the card slot (1) until the card block (2) located in the card slot (1) is pushed out of the card slot (1); It also includes a locking assembly (6) for locking the position of the movable rod (5) after the clamping block (2) exits the clamping slot (1).

6. The interlocking structure according to claim 5, characterized in that: The locking assembly (6) comprises a limit block (61) vertically slidably arranged on the movable rod (5), the limit block (61) moves together with the movable rod (5), a clearance groove (7) is provided at the position of the bottom of the box body corresponding to the limit block (61), the clearance groove (7) is communicated with the installation groove (31), and a first elastic member (62) is arranged between the limit block (61) and the movable rod (5); the first elastic member (62) is used to push one end of the limit block (61) to move downward when the movable rod (5) moves to drive the wedge block (51) to abut against the inclined surface on the pushing block (4) and push the card block (2) in the card slot (1) out of the card slot (1), so that one end of the limit block (61) passes downward through the clearance groove (7) and contacts with the box body below; It also includes a limit stop bar (8) arranged on the top of the lower box, and the limit stop bar (8) is used to prevent the limit block (61) from moving together with the movable rod (5) that moves in a reset manner; It also includes a reset block (32) arranged in the installation groove (31), and the reset block (32) is used to push the limit block (61) to move upward and reset when the upper and lower boxes are separated and the movable rod (5) is reset and moved.

7. The interlocking structure according to claim 5, characterized in that: The movable rod (5) is a rod body with a non-circular end cross section. One end of the movable rod (5) extends out of one side of the box body and is provided with a pushing portion (9). The movable rod (5) can be pushed to move in the installation groove (31) by operating the pushing portion (9). A movable groove (52) is provided on one side of the movable rod (5) corresponding to the pushing block (4). The wedge block (51) is detachably installed in the movable groove (52). One side of the pushing block (4) extends into the movable groove (52) and is slidably matched with the upper and lower sides of the notch of the movable groove (52). The pushing block (4) can move relative to the movable groove (52) along the movement direction of the movable rod (5).

8. The interlocking structure according to claim 7, characterized in that: After the movable rod (5) is reset, the side wall of the movable groove (52) contacts one side of the pushing block (4).

9. The interlocking structure according to claim 7, characterized in that: The pushing portion (9) is a trigger wrench (91), the top of which is located on the side of the box body for being triggered by a finger toward the outside, the middle of which is rotatably arranged in the mounting groove (31), and the bottom of which is in sliding contact with the end of the movable rod (5) for pushing the movable rod (5) to move toward one side.

10. The interlocking structure according to claim 9, characterized in that: The pushing portion (9) further comprises an L-shaped fixing block (92), wherein the fixing block (92) is located at one end of the movable rod (5) corresponding to the triggering lever (91), the short side of the L-shape of the fixing block (92) being fixedly connected to the movable rod (5), a sliding groove being provided at the bottom of the triggering lever (91), the long side of the L-shape of the fixing block (92) being inserted into the sliding groove, and the long side of the L-shape of the fixing block (92) will not fall out of the sliding groove when the triggering lever (91) moves back and forth, and after the triggering lever (91) is triggered outwards, before the upper box body is lifted, the triggering lever (91) can be maintained in an open state and will not be reset, thereby providing the user with unlocking state information.

11. The interlocking structure according to claim 5, characterized in that: The unlocking assembly further comprises a housing portion (3) detachably mounted on the bottom of the box body, the mounting groove (31) being arranged in the housing portion (3), and the pushing block (4) being slidably arranged in the housing portion (3), so that the unlocking assembly as a whole forms an independently detachable combined component.

12. A box, characterized in that: The box body is provided with the interlocking structure described in any one of claims 1 to 11.

13. The box according to claim 12, characterized in that: The top of the box body has a convex surface, and the side surface of the convex surface also serves as a limit stop bar (8).

Images