WO2023193617A1

WO2023193617A1 - Stackable storage box combination

Info

Publication number: WO2023193617A1
Application number: PCT/CN2023/083732
Authority: WO
Inventors: 尤礼忠
Original assignee: 尤礼忠
Priority date: 2022-04-08
Filing date: 2023-03-24
Publication date: 2023-10-12

Abstract

A stackable storage box combination, comprising: a first storage box (10a) and a second storage box (10b); and a locking mechanism (20) comprising a locking member (21) rotatably connected to the first storage box (10a) or to a cover body (12), and locking engagement portions (22) arranged on the second storage box (10b), the locking member (21) being restrained on the first storage box (10a) or the cover body (12) in the manner of being capable of moving up and down along a side wall of the first storage box (10a); and further comprising a biasing component arranged on the first storage box body (10a) and acting on the locking member (21), the biasing component being configured to: during a process in which the locking member (21) deflects relative to the first storage box (10a), allow the locking member (21) to move upwards along a box body side wall (11n) of or a cover body side wall (12n) of the first storage box (10a) under the action of an external force, and allow the locking member (21) to be repositioned downwards at least in the state of being deflected to a second locking position after the external force is removed, so that the locking member (21) is unlocked from or locked to the locking engagement portions (22) on the second storage box (10b). During the locking and unlocking process of the storage box combination, the force application angle of the locking member is more reasonable, causing less abrasion and deformation of containers.

Description

A stackable storage box combination

Technical field

The present invention relates to the technical field of storage boxes, and in particular to a storage box combination that can be stacked up and down.

Background technique

Current storage boxes mostly use a locking mechanism to lock the upper and lower boxes together to facilitate transportation and storage.

For example, Chinese invention patent application CN107428436A (application number is CN201680018142.8) discloses a container assembly, which includes at least one first container and at least one second container. The at least one first container and the at least one second container can pass through Locking mechanisms are removably attached to each other, the locking mechanisms interacting between at least one first container and at least one second container; wherein at least one first container is configured with a pivotable latch member on top thereof, and at least A second container is configured with a retaining portion on a corresponding bottom thereof; wherein the latch member is pivotable between a locked position in which the latch member engages the retaining portion and an unlocked position in which the latch member pivots The ground shift is separated from the holding part. wherein the retaining portion is an outwardly projecting hook-like member configured and shaped to retain and/or capture the latch member and prevent movement of the latch member when the latch member is locked thereon.

The container assembly in the above-mentioned patent still has certain shortcomings, because the latch member is a pivot member that rotates relative to the container (i.e., the storage box), and there is a certain pre-tightening force between the latch member and the retaining member during the joining process; therefore, , when locking or unlocking, it is necessary to push or pull the latch member in a direction perpendicular to the side wall of the cover or base to overcome the friction between the latch member and the holding member; in actual operation, not only force is applied It is difficult, and after long-term use, it is easy to cause wear and deformation problems at the connection between the latch member and the container and the holding member of the container, which in turn leads to locking failure of the locking mechanism, greatly shortening the service life of the product. In fact, in order to minimize the deformation problem of the storage box, it is usually necessary to use more expensive materials, which undoubtedly increases the material cost of the storage box.

Contents of the invention

The technical problem to be solved by the present invention is to provide a stackable storage box combination in view of the current situation of the existing technology. The force application angle of the locking member during the locking and unlocking process is more reasonable, thereby improving the storage box. The resulting wear and deformation are smaller, which can improve the use experience and extend the service life of the storage box.

The technical solution adopted by the present invention to solve the above technical problems is: a stackable storage box combination, including:

At least two storage boxes that can be stacked up and down. The lower storage box among the two adjacent storage boxes is marked as the first storage box, and the upper storage box is marked as the second storage box. , both the first storage box and the second storage box It includes a box with an opening at the top and a cover closed at the top opening of the box;

The locking mechanism includes a locking component rotatably connected to the side wall of the box or cover of the first storage box in a manner that can deflect relative to the first storage box around a horizontally extending axis of rotation, and a locking member provided with the locking mechanism. The locking part on the first storage box can at least be disengaged from the locking joint on the side wall of the second storage box. Deflect between an open first unlocking position and a second locking position that engages with the lock engagement portion provided on the second storage box;

The locking member is also constrained on the side wall of the box or cover of the first storage box in a manner that can move up and down along the side wall of the box or cover of the first storage box. ;

The locking mechanism further includes a biasing member acting on the first storage box and acting on the locking member, the biasing member being configured to: when the locking member is opposite to the first During the deflection of a storage box, the locking member can be allowed to move upward along the side wall of the box or the cover of the first storage box under the action of an external force, and the locking member can be allowed to move upward at least once the external force is removed. When deflected to the second locked position, it can be reset downward, so that the locking component can be unlocked or locked on the locking joint portion of the second storage box.

In order to achieve a rotational connection between the locking component and the first storage box, the locking component includes a pivot axis, and the pivoting axis of the locking component is pivotally connected to the side wall of the box or cover of the first storage box. On the other hand, the biasing member acts on the pivot axis of the locking member.

In order to meet the installation requirement that the locking member can move up and down while deflecting, the side wall of the box or cover of the first storage box has a bump protruding outward relative to the side wall of the box. As a connecting base for connecting the pivot shaft of the locking member, the connecting base has a movable opening in which the pivoting shaft of the locking member is constrained to slide up and down.

Generally speaking, locking parts can adopt various existing technologies such as strip-shaped rod structures and U-shaped grip structures. In order to simplify the structure of the locking parts and save costs, the locking parts are generally U-shaped. and has two opposite free ends. The two free ends of the locking member have pin portions that extend toward or back to each other and are located on the same straight line. The two pins of the locking member The locking member is rotatably connected to the side wall of the box or cover of the first storage box, and the two pin portions of the locking member constitute the pivot axis.

In order to prevent the locking component from being easily damaged by contact with foreign objects in the unlocked state, the locking component includes two opposite vertical rod portions and a crossbar portion connecting the two vertical rod portions. The free end of the vertical rod portion is bent with a pin portion that extends toward or backward and is located on the same straight line. The locking member is rotationally connected to the cover of the first storage box through the two pin portions. On the side wall, the side wall of the cover body is configured with the groove below the pin portion. When the locking member is deflected to the first unlocking position, at least part of the locking member is It is received in the groove and is substantially flush with the outer wall of the cover outside the periphery of the groove.

In order to prevent the rotation process of the locking member from interfering with the vertical movement process, thereby ensuring the flexibility of the locking and unlocking process of the locking member, a first limiting slide extending up and down is also constructed on the connecting seat. The first limiting slide is provided with a slider that is constrained by sliding up and down. The movable port on the connecting seat and the first limiting slide are in the water. The pivot axis of the locking member passes through the movable port and is connected to the slider. The first limiting slide is also provided with an elastic member that resists the slider. The elastic member and the slider jointly constitute the biasing member.

The arrangement of the above-mentioned slider makes the up and down sliding process of the locking member more stable and reliable. It can be understood that in another alternative embodiment, the above-mentioned slider can also be omitted, that is, the locking member The pivot axis directly offsets the elastic member.

The above-mentioned elastic parts can adopt various existing technologies, such as compression springs, torsion springs, reeds and other elastic elements. However, in order to better cooperate with the above-mentioned slider, the slider can move up and down along the limiting slide. Move, a preferred embodiment is: the slider has a positioning post extending upward or downward, the elastic member is a first compression spring, one end of the first compression spring is sleeved on the positioning post on the other end and against the inner wall of the first limiting slide.

Another preferred embodiment is that the top or bottom of the slider has a positioning groove, and the elastic member is an elastic piece. The elastic piece is installed in the positioning groove and offsets the inner wall of the first limiting slide. .

The above-mentioned elastic piece can adopt various elastic piece structures in the existing technology, such as V-shaped, U-shaped or M-type. In order to better adapt to the structure of the slide block and the limiting slide, the entire elastic piece is in the shape of a strip and There is an arched portion in the middle, and the inner wall of the first limiting slide has a matching first limiting recess at a position corresponding to the arched portion of the elastic piece. The two ends of the elastic piece limit It is located in the positioning groove of the slide block, and the arched portion is limited in the first limiting recess of the first limiting slide.

The elastic piece or the first compression spring as the elastic member (part of the biasing member) is a separate component disposed in the first limiting slide and independent of the pivot axis. Of course, it is conceivable that the biasing member It can also be configured to be integrally connected to the pivot axis and capable of rotating together with the pivot axis. Specifically, a feasible way is that the connecting base is also constructed with a movable port on the connecting base in a horizontal direction. The second limit slideway is connected, the pivot axis of the locking member extends into the second limit slideway through the movable opening, and the pivot axis extends into the second limit slideway correspondingly. A part of the slideway has a first installation hole opened along its radial direction. A ball and a second compression spring are provided in the first installation hole. The second compression spring acts on the ball and makes the ball The ball always has a tendency to move outward along the extension direction of the first installation hole. When the locking member is deflected to the second locking position relative to the first storage box, the ball on the pivot axis is in contact with the second locking position. The top walls of the limiting slide are in contact with each other, and the locking member can compress the second compression spring under the action of external force and move upward along the side wall of the first storage box or the side wall of the cover, and the external force is cancelled. Then, it is reset downward by the elastic force of the second compression spring, and the ball and the second compression spring together constitute the biasing member.

In order to facilitate the installation of the above-mentioned balls, second pressure spring and other components, a connecting shaft provided in the first installation hole is also included. The connecting shaft is axially hollow and is used for placing the balls and the second pressure spring. The second installation hole of the spring, the outer port of the second installation hole is a shrinking structure with a diameter that is reduced relative to the main part of the second installation hole to limit the ball from escaping from the second installation hole, and the ball has A portion of the outer port of the second installation hole can be exposed and butt against the top wall of the second limiting slide. When installing, you can first install the ball and the second compression spring into the second installation hole of the connecting shaft to form a connecting shaft unit, and then transfer the connecting shaft unit into the first hole of the pivot shaft. Install in the hole. The connecting shaft can be installed into the first installation hole of the pivot shaft through a threaded connection.

In order to prevent the locking member from being easily unlocked due to contact with foreign objects, the top wall of the second limiting slide is partially concave to form a second limiting recess. When the locking member is deflected to the second locking position In the state, the balls on the pivot shaft are correspondingly stuck into the second limiting recess.

Another possible way is: the connecting base is also constructed with a second limiting slide that communicates with the movable opening on the connecting base in the horizontal direction, and the pivot axis of the locking member passes through the The movable opening extends into the second limiting slideway, and the portion of the pivot shaft corresponding to the second limiting slideway is provided with an outer peripheral wall that protrudes radially outward relative to the pivot shaft. , and an elastic protrusion that can rotate together with the pivot axis. At least part of the elastic protrusion is elastic, so as to allow the locking member to compress the elastic protrusion under the action of external force and move along the box of the first storage box. The side wall of the body or the side wall of the cover body moves upward, and allows the locking component to be reset downward by the elastic force of the elastic protrusion after the external force is removed and deflected to the second locking position.

The above-mentioned elastic protrusions can be directly formed on the pivot shaft, that is, the elastic protrusions and the pivot shaft are designed in an integrated manner. However, in order to reduce the difficulty of processing and facilitate replacement when the elastic protrusions are damaged or fail to achieve the desired effect, the above-mentioned The portion of the pivot shaft that extends into the second limiting slideway is provided with a cam that can rotate together with the pivot shaft. The convex portion on the outer periphery of the cam is the elastic convex portion of the pivot shaft. The cam constitutes the biasing member.

In order to realize the installation and fixation of the pivot shaft and the cam, the outer peripheral wall of the pivot shaft corresponding to the middle part of the second limiting slideway has a limit that protrudes radially outward and extends along the length direction of the pivot shaft. The cam has a mounting hole for the pivot axis to pass through. The inner wall of the mounting hole has a limit for the limiting convex rib to limit the rotation of the cam around the pivot axis. bit groove. In order to make the installation and fixation of the pivot shaft and the cam more reliable, there can be multiple limiting ribs on the pivot shaft, which are arranged sequentially along its circumferential direction. Correspondingly, the limiting grooves on the mounting holes of the cam are also provided with multiple limiting grooves along the circumferential direction. indivual. Of course, it is conceivable that the cam and the pivot shaft can be fixed by screws installed in the radial direction.

Also in order to prevent the locking member from being easily unlocked due to contact with foreign objects, the top wall of the second limiting slide is partially concavely formed with a third limiting recess. In the locked position, the elastic protrusion is correspondingly locked into the third limiting recess.

Generally speaking, the locking member can adopt a strip-shaped rod structure, a U-shaped handle structure, etc., and the groove can be adapted to the entire strip-shaped rod structure or U-shaped handle structure for locking. The entirety of the fastener accommodates one of the recessed areas.

In order to prevent the locking part from being damaged by contact with foreign objects and to facilitate the user to pick up the locking part from the groove, the side wall of the cover body has an outer protrusion below the pin part. As for the skirt-shaped outer peripheral edge, a groove is formed on the outer wall surface of the outer peripheral edge. When the locking member is deflected to the first unlocking position, the crossbar portion of the locking member is accommodated in the groove. in the groove and approximately flush with the outer wall of the outer peripheral edge of the groove.

Since the locking member is in the first unlocked position, the crossbar portion of the locking member is received in the groove on the skirt-shaped peripheral edge of the lid of the storage box, so it is not easily damaged by contact with foreign objects. . On the other hand, due to the locking parts The cross bar portion is against the skirt-shaped outer peripheral edge, which causes the pin portion of the locking member and the cross bar portion of the locking member to be dislocated in the up and down direction, that is, the locking member is in the first unlocking position. It is in a state of tilting from top to bottom toward the outside of the storage box as a whole, which can better facilitate the user to pick up the cross bar part of the locking member in the groove of the cover body.

In order to facilitate the user to carry the storage box or the stacked storage box combination, the locking component forms a handle for the user to hold.

In order to conveniently lock two storage boxes stacked one above another, the locking part on the first storage box and the locking joint part on the second storage box should be as close as possible, and the locking part should be as close as possible. The piece is provided on the side wall of the cover of the first storage box, and the lock joint portion on the second storage box is a protrusion protruding outward relative to the side wall of the second storage box. The protruding structure is vertically aligned with the locking member to allow the locking member on the first storage box to engage with the second storage box when deflected to the second locking position. A latch engagement portion on the bins engages to lock the first and second storage bins together.

For a combination of storage boxes stacked up and down and locked together, when the user needs to take and place items from the storage box below, generally, the user needs to remove the storage box stacked above the storage box below. It is undoubtedly inconvenient to open the lid of the lower storage box. Therefore, a locking member is provided on the lid of the storage box so that the lid of the lower storage box in the stacked and locked state can be opened. The process will not be affected. When the storage boxes are stacked, users can still easily access and place items in the lower storage box without having to unlock and remove the upper storage box.

In order to realize that any two storage boxes can be locked together when stacked up and down, the side walls of the cover of the first storage box and the side walls of the cover of the second storage box are both provided with the The locking part is provided with the locking joint part on the side wall of the first storage box and the side wall of the second storage box.

Compared with the prior art, the advantage of the present invention is that while the locking member on the first storage box rotates, it can also produce a certain displacement in the vertical direction along the lid of the storage box or the side wall of the box. Therefore, the user can complete the locking and unlocking operations of the locking part by exerting a certain force on the locking part in the up and down direction during deflection. This force application method does not require the user to exert a large amount of force in the side direction. The large force is more in line with the user's operating habits, and effectively reduces the wear of the locking part on the locking joint on the second storage box due to friction, and avoids damage caused by deformation of the storage box material. This will lead to the occurrence of locking failure, so there is no need to require the storage box to have sufficient strength at the corresponding parts (such as the lock joint), making it possible to further reduce the material cost of the storage box.

On the other hand, the setting of the bias member can also enable the latch to be reset downward and pressed against the latch joint part when no external force is applied, making the locking between two storage boxes stacked one above the other more stable and reliable. .

Description of the drawings

Figure 1 is a schematic three-dimensional structural diagram of the storage box combination in Embodiment 1 of the present invention (stacked up and down and the locking member is in the second locking position);

Figure 2 is a front view of Figure 1;

Figure 3 is the right view of Figure 1;

Figure 4 is a three-dimensional structural schematic diagram of part of the structure of the storage box combination in Figure 1 (the locking mechanism is in an exploded state, and the elastic member of the biasing member adopts the first compression spring);

Figure 5 is a schematic structural view of Figure 3 without the cover plate at the pin portion of the locking member;

Figure 6 is a schematic three-dimensional structural view of the locking member in Figure 1 in a first unlocking position;

Figure 7 is a schematic three-dimensional structural diagram of one of the storage boxes in Embodiment 1 of the present invention;

Figure 8 is a schematic structural diagram of Embodiment 2 of the present invention (the elastic member of the biasing member adopts elastic pieces);

Figure 9 is an exploded three-dimensional view of Figure 8;

Figure 10 is a schematic three-dimensional structural diagram of a partial structure of the storage box assembly in Embodiment 3 of the present invention (the biasing member uses balls and a second compression spring);

Figure 11 is a cross-sectional view at A-A in Figure 10 (the locking member is in the second locking position);

Figure 12 is a cross-sectional view at A-A in Figure 10 (the locking member is in the first unlocking position);

Figure 13 is a partial structural schematic diagram of the locking member in Embodiment 3 of the present invention;

Figure 14 is an exploded view of Figure 13;

Figure 15 is a schematic three-dimensional structural diagram of a partial structure of the storage box assembly in Embodiment 4 of the present invention (the biasing member uses balls and a second compression spring);

Figure 16 is a cross-sectional view at B-B in Figure 15 (the locking member is in the second locking position);

Figure 17 is a cross-sectional view at B-B in Figure 15 (the locking member is in the first unlocking position);

Figure 18 is a partial structural schematic diagram of the locking member in Embodiment 4 of the present invention;

FIG. 19 is an exploded view of FIG. 18 .

Detailed ways

The present invention will be described in further detail below with reference to the embodiments of the drawings.

In the description and claims of the present invention, terms indicating directions are used, such as "front", "back", "upper", "lower", "left", "right", "side", "top", "Bottom" and the like are used to describe various example structural parts and elements of the present invention, but these terms are used herein for convenience of explanation only and are determined based on the example orientations shown in the drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used for illustration and should not be regarded as limiting. For example, "up" and "down" are not necessarily limited to the opposite direction of gravity or consistent direction.

Example 1

Referring to Figures 1-7, a first preferred embodiment of the stackable storage box combination of the present invention is shown. The storage box combination includes at least two storage boxes that can be stacked one above the other, and the two storage boxes are locked together through a locking mechanism 20 . Among the two storage boxes stacked up and down, the lower storage box is marked as the first storage box 10a, and the upper storage box is marked as the second storage box 10b.

As shown in FIG. 7 , each storage box of the storage box combination includes a box body 11 with an opening at the top and a cover 12 covering the top opening of the box body 11 . The box body 11 of the storage box has a bottom wall 11m and a side wall 11n extending upward from the outer periphery of the bottom wall 11m. The side wall 11n and the bottom wall 11m jointly define a storage space for placing items. The cover 12 has a top wall 12m and side walls 12n hanging downward from the outer peripheral edge of the top wall 12m. When the cover 12 is closed on the top opening of the box 11 , the outer peripheral edge of the bottom of the side wall 12 n of the cover 12 abuts the outer peripheral edge of the top of the side wall 11 n of the box 11 . In a preferred embodiment, the bottom of the side wall 12n of the lid 12 of the storage box has a skirt-shaped outer peripheral edge 123 that protrudes outward relative to the side wall of the lid 12. When the lid 12 is in a closed state, , the skirt-shaped outer peripheral edge 123 of the cover 12 is wrapped around the outer peripheral edge of the top opening of the box 11 .

The lids 12 of the storage boxes 10a and 10b can be detachably connected to the box 11, or can be hinged to the box 11 through a hinge structure 31 on one side of the lid 12, so that the lid 12 can be positioned relative to the box. The deflection opening and closing of body 11. In this embodiment, as can be seen from FIG. 3 , the rear side of the cover 12 is hinged to the rear side of the box 11 through the hinge structure 31 . In order to cover the box 11 and the cover 12 securely, the front sides of the box 11 and the cover 12 are also locked by corresponding locking devices 30 .

The two storage boxes 10a and 10b stacked one above the other are locked together by the locking mechanism 20 . The structure of the locking mechanism 20 provided on the storage box will be described below through the combination structure of the storage box shown in FIG. 4 .

The locking mechanism 20 includes a locking component 21 , a biasing member, and a locking engaging portion 22 . During the deflection process of the locking member 21, the above-mentioned biasing member can allow the locking member 21 to move upward under the action of an external force during the deflection process, and allows the locking member 21 to deflect to at least the second locking position after the external force is removed. It can be reset downward, thereby locking or unlocking the locking member 21 at the locking joint portion 22 of the second storage box 10b.

The structure of the locking mechanism will be described below by taking the first compression spring and the slider as the biasing member as an example.

The locking component 21 is rotatably connected to the side wall of the cover 12 of the first storage box 10a in a manner that it can be deflected relative to the first storage box 10a around a rotating axis A that extends substantially horizontally.

In a preferred solution, the locking member 21 is U-shaped as a whole, specifically including two opposite vertical rod portions 212 and a horizontal rod portion 211 connecting the two vertical rod portions 212. The ends of the two vertical rod portions 212 (also That is, the free end of the locking member 21 has a pin portion 213 that extends toward each other (of course it can also extend backward) and is located on the same straight line. The two pin portions 213 of the locking member 21 are pivotally connected to the first On the side wall of the cover 12 of the storage box 10a. The two pin portions 213 of the locking member 21 constitute the pivot axis 210 of the locking member 21 of this embodiment, and the rotating axis A shown in FIG. 3 is also the pin portion 213 of the locking member 21 .

Referring to Figure 5, the side wall 12n of the cover 12 of the first storage box 10a has a protrusion 110 protruding outward relative to the side wall of the cover 12. The protrusion 110 can be used to connect the locking member 21 The connecting seat of the pivot axis 210. The bump 110 is provided with an open slot 1101 extending up and down. The open slot 1101 is also covered with a cover 122 that can be detached from the bump 110. The cover 122 is connected to the bump 110 through screws. The open groove 1101 of the bump 110 and the cover 122 jointly define a first limiting slide 111a extending up and down. The bump 110 of the cover 12 also has an movable opening 112 laterally penetrating the first limiting slide 111a. The movable opening 112 can be used as a pivot axis of the locking member 21. 210 penetrates into the first limiting slide 111a and is connected with the slide block 24 corresponding to the first limiting slide 111a.

The slider 24 is constrained in the first limiting slide 111a to be able to slide up and down. The slider 24 has a transversely penetrating positioning hole 241 , and the positioning hole 241 is directly opposite to the movable opening 112 on the bump 110 . The pin portion 213 of the locking member 21 can pass through the movable opening 112 on the boss 110 and be correspondingly inserted into the positioning hole 241 of the slider 24 . When the pin portion 213 of the locking member 21 is assembled in the positioning hole 241 of the slider 24, the locking member 21 can freely rotate around its pin portion 213 relative to the slider 24.

Referring to FIGS. 4 and 5 , in one embodiment, the top of the slider 24 has a positioning post 242 extending upward. The elastic member in the first limiting slide 111a is a first compression spring 23a. One end of the first compression spring 23a is sleeved on the positioning post 242 of the slider 24, and the other end is connected to the inner wall of the first limiting slide 111a. offset.

When assembling the locking mechanism 20, the slider 24 and the first compression spring 23a can be placed into the open groove 1101 of the bump 110 first, and then the pivot shaft 210 of the locking member 21 can be inserted through the movable opening 112. into the positioning hole 241 of the slider 24, and finally connect the cover plate 122 to the bump 110 through screws. Under the limiting effect of the cover 122, the slider 24 and the elastic member will not come out of the first limiting slide 111a.

Referring to Figure 4, there are two connection seats (bumps) 110 on the side wall 12n of the cover body of the storage box. The two connection seats 110 are arranged at intervals along the horizontal direction on the side wall of the cover body 12. The locking parts The two pin portions 213 of 21 are respectively rotatably connected to the two connecting seats.

The above-mentioned U-shaped locking member 21 can be conveniently used as a handle to facilitate the user to hold and carry the storage box.

Since the rotation process of the locking member 21 relative to the slider 24 and the up and down movement process of the slider 24 in the first limiting slide 111a are independent of each other, the two do not interfere with each other, thus ensuring that the locking member 21 is locked and unlocked. The process is flexible and there will be no stuck problems.

Next, taking "a storage box combination formed by locking two storage boxes stacked up and down by the locking mechanism 20" as an example, the working process of the locking mechanism 20 will be explained.

The lower portion of the box side wall 11n of the second storage box 10b is also provided with a lock joint portion for snap-fitting with the cross bar portion 211 of the lock member 21 on the cover side wall 12n of the first storage box 10a. twenty two. The lock joint 22 is a raised structure protruding outward relative to the side wall of the box body 11 of the second storage box 10b. The top edge of the raised structure has an upwardly protruding stopper 220, so that the The entire raised structure is hook-shaped, see Figure 7 for details.

There are two locking joints 22 on the side wall 11n of the box 11 of the second storage box 10b. The two locking joints 22 have basically the same structure, and are located on the side of the box of the second storage box 10b. The walls 11n are arranged at intervals along the horizontal direction. When the first storage box 10a and the second storage box 10b are stacked up and down, the two lock joints 22 on the side wall 11n of the second storage box 10b and the cover of the first storage box 10a The locking parts 21 on the side walls 12n are vertically aligned. The locking member 21 can be deflected in the first unlocking position and the second locking position in the direction shown by the double-arrow arc s in Figure 2, wherein in the first unlocking position, the cover of the first storage box 10a The locking part 21 on the body side wall 12n is separated from the locking joint 22 on the box side wall 11n of the second storage box 10b, and as shown in Figure 6, it abuts against the first storage box 10b. On the side wall 12n of the lid of the luggage box 10a. In the second locked position, the first storage The locking part 21 on the cover side wall 12n of the storage box 10a is engaged with the locking joint part 22 on the box side wall 11n of the second storage box 10b. This state is shown in FIG. 2 .

When the upper and lower storage boxes need to be locked, the locking member 21 on the cover side wall 12n of the lower storage box 10a can be deflected upward around the pivot axis 210 to the second locking position. At this time, the locking member The cross bar portion 211 of the member 21 and the above-mentioned two lock joint portions 22 on the side wall 11n of the upper storage box 10b are simultaneously buckled to achieve locking. When it is necessary to unlock the upper and lower storage boxes 10a and 10b, the user can deflect the locking part 21 on the cover side wall 12n of the lower storage box 10a downward along the pivot axis 210, and the locking part 21 and The two latch engagement portions 22 on the upper storage box 10b are disengaged and deflected to the first unlocking position as shown in Figure 6.

In this embodiment, both the first storage box 10a and the second storage box 10b include a box body 11 with an opening at the top and a cover 12 closed at the top opening of the box body 11. The first storage box 10a and the second storage box 10b are provided with both a locking part 21 and a locking joint part 22. For each storage box, the locking part 21 is provided on the storage box. On the side walls of the lids 12 of the boxes 10a and 10b, the lock joints 22 are provided below the side walls of the box 11 of the storage boxes 10a and 10b. In this way, any two storage boxes 10a and 10b are When stacked, they can be locked through the locking part 21 on the cover side wall 12n of the lower storage box 10a and the locking joint 22 on the box side wall 11n of the upper storage box 10b.

Since the locking part 21 can slide in the up and down direction along the side wall 12n of the cover 12 of the first storage box 10a, that is, the locking part 21 has a certain margin of movement in the vertical direction. Therefore, when the user rotates During the process of locking the fastener 21, pulling the fastener 21 upward can cause the fastener 21 to overcome the elastic force of the elastic member and move upward a certain distance. Therefore, the user can move the fastener 21 up and down during the deflection process. The locking and unlocking operations of the locking member 21 can be completed by applying a certain force in the direction. This force application method does not require the user to exert a large force in the side direction, which is more in line with the user's operating habits and effectively reduces the risk of accidents. The wear problem of the locking member 21 on the storage box caused by friction avoids the occurrence of locking failure due to the deformation of the storage box material, and there is no need to require the storage box to have sufficient strength at the corresponding parts to make the storage It is possible to further reduce the material cost of the box. When the user releases the locking part 21, the locking part 21 will press against the locking joint part 22 under the elastic force of the elastic member, making the locking of the upper and lower storage boxes more stable and reliable.

The locking member 21 is provided on the cover 12 of the first storage box 10a, which also enables the opening of the cover 12 of the lower storage box 10a among the two stacked and locked storage boxes 10a and 10b. The process will not be greatly affected, and the user can be allowed to pick up and place items in the lower storage box 10a without having to unlock and remove the upper storage box 10b before completing the above operations.

As can be seen in Figure 6, the outer peripheral edge 123 of the side wall 12n of the cover 12 of the first storage box 10a also has a groove 120. When the locking member 21 is in the unlocked state (also That is, in a natural placement state), the cross bar portion 211 of the locking member 21 is received in the groove 120, and the cross bar portion 211 of the fastener 21 is in contact with the outer peripheral edge 123 of the cover 12 other than the periphery of the groove 120. The outer walls are roughly flush.

The groove 120 on the skirt-shaped outer peripheral edge 123 is a horizontal strip groove, the length of which is equal to the transverse direction of the locking member 21. The lengths of the rod portions 211 are substantially uniform. When the locking member 21 is in the natural placement state shown in FIG. 6 (that is, in the first unlocking position), the pin portion 213 of the locking member 21 and the crossbar portion 211 of the locking member 21 are in the up and down direction. The upper staggered arrangement means that the locking member 21 is tilted from top to bottom toward the outside of the storage box as a whole. The advantage of this arrangement is that it can better facilitate the user to move in the groove 120 of the cover 12 Pick up the crossbar portion 211 of the locking member 21 .

Example 2

Referring to Figures 8 and 9, the difference between this embodiment and Embodiment 1 is that the first compression spring 23a in Embodiment 1 is replaced with an elastic piece 23b, and the part of the slider 24 that abuts the elastic piece 23b is adapted. change. Specifically, the top of the slider 24 has a positioning groove 240 for placing the elastic piece 23b. The elastic piece 23b is a bar-shaped piece with an upwardly arched portion 230 in the middle. The two ends of the elastic piece 23b are limited to the positioning position of the slider 24. In the groove 240, the inner wall of the first limiting slide 111a has a matching first limiting recess 1110 corresponding to the middle arched portion 230 of the elastic piece 23b. Through the first limiting recess 1110, the elastic piece 23b is blocked. Position it to prevent it from shaking.

The working process of the locking mechanism 20 in this embodiment is basically the same as that in Embodiment 1, and will not be described again here.

Example 3

Referring to Figures 10-14, the difference between this embodiment and Embodiment 1 is that the biasing member is different, and the biasing member of this embodiment is provided on the pivot axis 210 of the locking member 21 and can follow the pivot axis 210. Turn together.

Specifically, the formation method of the first limiting slide 111a in Embodiment 1 is basically the same. An open slot 1101 is provided on the bump 110 of the first storage box 10a, and a cover is provided at the open slot 1101. There is a cover plate 122 that can be detached from the bump 110, and the cover plate 122 is connected to the bump 110 through screws. The open groove 1101 of the protrusion 110 and the cover 122 jointly define a second limiting slide 111b. The bump 110 of the cover 12 also has an movable opening 112 that laterally penetrates the open groove 1101. In this embodiment, the movable opening 112 has an upper and lower dimension equal to the upper and lower dimension of the open groove 1101. Basically the same. The pivot axis 210 of the locking member 21 can extend into the above-mentioned second limiting slide 111b through the movable opening 112 .

As shown in FIGS. 13 and 14 , the pivot shaft 210 of the locking member 21 has a first mounting hole 2100 opened along its radial direction, and the inner wall of the first mounting hole 2100 is provided with threads. The biasing member of this embodiment 3 includes a ball 41 , a second compression spring 42 and a connecting shaft 43 . The outer peripheral wall of the connecting shaft 43 is also provided with threads, so that after the connecting shaft 43 is installed into the first installation hole 2100 of the pivot shaft 210, the two can be connected through threads. The connecting shaft 43 is axially hollow to form a second installation hole 430 , and the ball 41 and the second compression spring 42 are both arranged in the second installation hole 430 of the connecting shaft 43 . The outer port of the second mounting hole 430 has a constriction structure with a diameter smaller than the main body part of the second mounting hole 430, and the outer diameter of the ball 41 is larger than the diameter of the outer port of the second mounting hole 430. In this way, After the ball 41 and the second compression spring 42 are installed into the second installation hole 430 of the connecting shaft 43, due to the restriction of the shrinkage part, the ball 41 will not move under the elastic force of the second compression spring 42. Remove the second installation hole 430 external port. In the natural state, due to the elastic force of the second compression spring 42, the ball 41 also partially exposes the outer end of the second installation hole 430 of the connecting shaft 43, wherein the ball 41 partially exposes the outer end of the second installation hole 430. The portion also protrudes outward in the radial direction relative to the outer peripheral wall of the pivot shaft 210. In this way, when the locking member 21 is deflected to the second locking position, the ball 41 on the pivot shaft 210 can engage with the second limiting slide. The top walls of the channel 111b (that is, the upper side walls of the open slot 1101) offset each other. In a preferred embodiment, the upper side wall of the open groove 1101 of the bump 110 is also provided with a second limit for limiting the ball 41 on the locking member 21 in the second locking position. The second limiting recess 1104 is an arc-shaped recess whose shape matches the ball 41 . After the ball 41 is inserted into the arc-shaped recess 1104, the fastener 21 will not easily deflect downward and disengage from the second locking position due to contact with foreign objects.

As shown in Figure 10, the bottom side wall of the open groove 1101 on the bump 110 also has a concave first relief gap 1105 at a position corresponding to the ball 41. In this way, after the locking member 21 is released, the lock The fastener 21 can smoothly deflect downward to the first unlocking position under its own gravity, and the ball 41 will not interfere with the bottom side wall of the open slot 1101 .

The biasing member of this embodiment can also allow the locking member 21 to have a certain margin of movement in the vertical direction. When the user rotates the locking member 21, the biasing member deflects together with the locking member 21. When approaching the first In the second locking position, the user pulls the locking member 21 upward so that the ball 41 on the locking member 21 abuts the top wall of the second limiting slide 111b. The ball 41 can move along the second direction of the connecting shaft 43. The extension direction of the installation hole 430 moves inward and compresses the second compression spring 42, thereby allowing the locking member 21 to move upward a certain distance, smoothly deflecting upward or downward, and reducing locking problems caused by friction. The fastener 21 wears the latch joint 22 on the second storage box 10b. When the user releases the locking part 21, under the elastic force of the second compression spring 42, the locking part 21 as a whole has a tendency to move downward, thereby pressing against the locking joint part 22, so that the upper and lower storage boxes The locking is more stable and reliable, see Figure 11 for details, in which the lock joint of the second storage box is not shown in Figure 11 .

Example 4

Referring to Figures 15 to 19, the biasing member of this embodiment is also provided on the pivot axis 210 of the lock member 21, and can rotate together with the pivot axis 210 (this is the same as Embodiment 3). This embodiment is different from the implementation of The difference in Example 3 lies in the specific structure of the biasing member. Specifically, the deflection member includes a cam 51 that is sleeved on the pivot shaft 210 and can rotate together with the pivot shaft 210. The cam 51 includes a cam body 511 and a cam formed on the pivot shaft 210. There is a protrusion 512 on the outer periphery of the cam body 511. The protrusion 512 is at least partially elastic, so that the protrusion 512 can deform in the radial direction when being squeezed by an external force, thereby allowing the locking member 21 to deflect upward. There is a certain margin of activity in the up and down direction during the process. When the user releases the locking part 21, under the action of the elastic force of the elastic protrusion 512 of the cam 51, the locking part 21 as a whole has a tendency to move downward, thereby pressing against the locking joint part, so that the goods can be stored up and down. The locking of the box is more stable and reliable. See Figures 16 and 17 for details. Figure 16 does not show the lock joint of the second storage box.

The cam body 511 has a mounting hole 5111 for the pivot shaft 210 of the locking member 21 to pass through. The mounting hole 5111 The inner peripheral wall is provided with limiting grooves 5110 at circumferential intervals. Correspondingly, the pivot shaft 210 of the locking member 21 has a plurality of limiting convex ribs 2101 protruding radially outward. Each limiting convex rib 2101 is provided along the circumferential direction. The axial extension of pivot axis 210. After the cam 51 is installed on the pivot shaft 210, the two are limited in the circumferential direction through the above-mentioned limiting ribs 2101 and the limiting groove 5110, thereby achieving fixation between the two, so that the cam 51 can follow the movement of the pivot shaft 210. The pivot axis 210 rotates together. Of course, it is conceivable that screws installed in the radial direction can be used to fix the cam 51 and the pivot shaft 210 .

The cam body 511 of the cam 51 in this embodiment can be made of metal or hard plastic material, and the elastic protrusion 512 can be a flexible piece that can be embedded or injection molded on the cam body 511, such as rubber or elastic plastic.

The top wall of the open groove 1101 of the bump 110 has a concave guide groove 1102 at a position corresponding to the elastic protrusion 512 of the cam 51, wherein the guide groove 1102 extends in the front-rear direction and is open at the front. A bar-shaped groove is formed on the back side of the top wall of the bar-shaped groove to form a limiting concave area 1103. The front side of the top wall of the bar-shaped groove has a curved surface 1102a that gradually slopes upward from back to front. When the locking member 21 deflects upward to approach the second locking position, the elastic protrusion 512 of the cam 51 on the pivot shaft 210 can enter the limiting concave area 1103 through the guidance of the curved surface 1102a of the front part of the guide groove 1102. When the locking member 21 rotates to the second locking position, since the elastic protrusion 512 of the cam 51 is limited in the limiting concave area 1103 of the guide groove 1102, the locking member 21 will not easily deflect downward. disengage from the second locked position.

As shown in Figure 15, the bottom side wall of the open groove 1101 on the bump 110 is also provided with a concave second relief gap 1106 at a position corresponding to the elastic protrusion 512 of the cam 51. In this way, the lock buckle is released. After the locking member 21 is removed, the locking member 21 can smoothly deflect downward to the first unlocking position under the action of its own gravity, and the cam 51 will not interfere with the bottom side wall of the open slot 1101 .

On the basis of the above embodiments, other embodiments can be obtained by replacing and improving the relevant technical features. For example, in an embodiment of a storage box combination formed by locking two storage boxes stacked up and down by the locking mechanism 20, the locking part 21 of the locking mechanism is not provided on the cover of the storage box. It is limited to the upper part of the body 12, it can also be arranged in the upper area of the side wall of the lower part of the storage box 11, that is, the locking part 21 on the box 11 of the lower storage box is upward relative to the storage box. The deflection can be locked with the second lock engagement portion 22b on the box body 11 of the upper storage box. For another example, in the storage box combination embodiment in which two storage boxes in a stacked state are locked by the locking mechanism 20, the locking member 21 in the locking mechanism 20 may be provided in the upper storage box. The lower area of the side wall of the box 11, and the second lock joint portion 22b can be correspondingly provided on the side wall of the cover 12 of the lower storage box or the side wall of the box 11, and the locking member 21 of the upper storage box is opposite to the side wall of the lid 12 of the lower storage box or the side wall of the box 11. The storage box is deflected downward to be locked on the second lock engaging portion 22b of the lower storage box. In this case, the biasing member of the locking mechanism is against the bottom of the locking member 21, so that the locking Piece 21 always has a tendency to move upward.

Claims

A stackable storage bin combination that includes:

At least two storage boxes that can be stacked up and down. The lower storage box among the two adjacent storage boxes is marked as the first storage box (10a), and the upper storage box is marked as the second storage box (10a). Storage box (10b), the first storage box (10a) and the second storage box (10b) both include a box body (11) with an opening at the top and a cover closed at the top opening of the box body (11) cover (12);

The locking mechanism (20) includes a box (10a) rotatably connected to the first storage box (10a) in a manner that can be deflected relative to the first storage box (10a) around a substantially horizontally extending rotating axis (A). 11) or the locking member (21) on the side wall (11n; 12n) of the cover (12), and the locking member (21) provided on the side wall (11n) of the second storage box (10b) The joint part (22), the locking part (21) on the first storage box (10a) can at least be disengaged from the locking joint part (22) on the second storage box (10b) deflection between the first unlocking position and the second locking position that engages the latch engaging portion (22) provided on the second storage box (10b);

It is characterized in that the locking member (21) can also move up and down roughly along the side walls (11n; 12n) of the box (11) or the cover (12) of the first storage box (10a). is constrained on the side wall (11n; 12n) of the box (11) or cover (12) of the first storage box (10a);

The locking mechanism (20) also includes a biasing member provided on the first storage box (10a) and acting on the locking member (21). The biasing member is configured to: During the deflection of the locking component (21) relative to the first storage box (10a), the locking component (21) can be allowed to move along the side wall (11n) of the first storage box (10a) under the action of external force. ) or the cover body side wall (12n) moves upward, and allows the locking member (21) to reset downward at least when deflected to the second locking position after the external force is removed, so that the locking member (21) Unlock or lock on the latch joint (22) of the second storage box (10b).
The storage box combination according to claim 1, characterized in that: the locking member (21) includes a pivot shaft (210), and the pivoting shaft (210) of the locking member (21) is pivoted on the first On the side wall (11n; 12n) of the box (11) or cover (12) of a storage box (10a), the biasing member acts on the pivot axis (210) of the locking member (21) .
The storage box combination according to claim 2, characterized in that: the side wall (11n; 12n) of the box (11) or cover (12) of the first storage box (10a) has a structure corresponding to the side wall (11n; 12n) of the first storage box (10a). The bulge (110) protruding outward from the side wall of the box (11) serves as a connecting seat for connecting the pivot axis (210) of the locking member (21). The connecting seat (110) has a The pivot axis (210) of the locking member (21) is slidably constrained to the movable opening (112) therein.
The storage box combination according to claim 2, characterized in that: the locking member (21) is U-shaped as a whole and has two opposite free ends. The free end has a pin portion (213) that extends toward or back and is located on the same straight line. The two pin portions (213) of the locking member (21) are rotationally connected to the first storage device. On the side wall (11n; 12n) of the box (11) or the cover (12) of the luggage box (10a), the two pin portions (213) of the locking member (21) constitute the Pivot axis (210).
The storage box combination according to claim 4, characterized in that the locking member (21) includes two opposite vertical rod parts (212) and a transverse rod part (212) connecting the two vertical rod parts (212). 211), the two vertical parts of the locking member (21) A pin portion (213) is bent at the free end of the rod portion (212), and the locking member (21) is rotatably connected to the cover of the first storage box (10a) through the two pin portions (213). On the body side wall (12n), the side wall (12n) of the cover body (12) is configured with a groove (120) below the pin portion (213), and the locking member (21) When deflected to the first unlocking position, at least part of the locking member (21) is received in the groove (120) and connected with the outer wall of the cover (12) other than the periphery of the groove (120). Roughly flush.
The storage box combination according to claim 5, characterized in that: the side wall (12n) of the cover (12) has a convex and skirt-shaped outer periphery at a portion below the pin portion (213). The edge (123) has the groove (120) configured on the outer wall surface of the peripheral edge. When the locking member (21) is deflected to the first unlocking position, the lateral direction of the locking member (21) The rod portion (211) is received in the groove (120) and is substantially flush with the outer wall of the outer peripheral edge (123) other than the periphery of the groove (120).
The storage box combination according to claim 3, characterized in that: a first limiting slide (111a) extending up and down is also constructed on the connecting seat (110), and the first limiting slide (111a) is 111a) is provided with a slider (24) that is constrained to slide up and down, and the movable port (112) on the connecting seat (110) and the first limiting slide (111a) are horizontally connected. , the pivot axis (210) of the locking member (21) passes through the movable port (112) and is connected to the slider (24), and the first limiting slideway (111a) is also provided with There is an elastic member (23a; 23b) that resists the slider (24), and the elastic member (23a; 23b) and the slider (24) together constitute the biasing member.
The storage box combination according to claim 7, characterized in that: the slider (24) has a positioning post (242) extending upward or downward, and the elastic member is a first compression spring (23a) , one end of the first compression spring (23a) is sleeved on the positioning post (242), and the other end is against the inner wall of the first limiting slide (111a).
The storage box combination according to claim 7, characterized in that: the top or bottom of the slider (24) has a positioning groove (240), the elastic member is an elastic piece (23b), and the elastic piece (23b) is installed In the positioning groove (240), and against the inner wall of the first limiting slide (111a).
The storage box combination according to claim 9, characterized in that: the elastic piece (23b) is in the shape of a strip and has an arched portion (230) in the middle, and the inner wall of the first limiting slide (111a) The elastic piece (23b) has a matching first limiting recess (1110) at a position corresponding to the arched portion (230) of the elastic piece (23b). The two ends of the elastic piece (23b) are limited on the slider. In the positioning groove (240) of the block (24), the arched portion (230) is limited in the first limiting recess (1110) of the first limiting slide (111a).
The storage box combination according to claim 3, characterized in that: the connecting base (110) is also constructed with a third movable port (112) on the connecting base (110) that communicates with the movable opening (112) in the horizontal direction. Two limiting slides (111b), the pivot axis (210) of the locking member (21) extends through the movable opening (112) into the second limiting slide (111b), so The portion of the pivot shaft (210) corresponding to the second limiting slideway (111b) has a first installation hole (2100) opened along its radial direction. There is a first installation hole (2100) in the first installation hole (2100). There is a ball (41) and a second compression spring (42). The second compression spring (42) acts on the ball (41) and makes the ball (41) always have a position along the first installation hole. The extension direction of (2100) tends to move outward, when the locking member (21) is deflected to the second locking position relative to the first storage box (10a), The ball (41) on the pivot shaft (210) is against the top wall of the second limiting slide (111b), and the locking member (21) can compress the second compression spring (21) under the action of external force. 42) and moves upward along the side wall (11n) or cover side wall (12n) of the first storage box (10a), and after the external force is removed, it is affected by the elastic force of the second compression spring (42) When it is reset downward, the ball (41) and the second compression spring (42) together constitute the biasing member.
The storage box combination according to claim 11, characterized in that: it further includes a connecting shaft (43) provided in the first installation hole (2100), the connecting shaft (43) is axially hollow and is formed with a hole for A second installation hole (430) for housing the ball (41) and the second compression spring (42). The outer port of the second installation hole (430) is a main part with a diameter corresponding to the second installation hole (430). The shrinkage structure is narrowed to restrict the ball (41) from escaping from the second installation hole (430), and part of the ball (41) can expose the outer port of the second installation hole (430). And butts against the top wall of the second limiting slide (111b).
The storage box combination according to claim 11, characterized in that the top wall of the second limiting slide (111b) is partially concave to form a second limiting recess (1104), and the locking member (1104) is 21) When deflected to the second locking position, the ball (41) on the pivot shaft (210) correspondingly snaps into the second limiting recess (1104).
The storage box combination according to claim 3, characterized in that: the connecting base (110) is also constructed with a second connecting base (110) that is horizontally connected with the movable opening (112) of the connecting base (110). Limiting slide (111b), the pivot axis (210) of the locking member (21) extends through the movable opening (112) into the second limiting slide (111b), the The portion of the pivot shaft (210) corresponding to the second limiting slideway (111b) is provided with a portion that protrudes radially outward relative to the outer peripheral wall of the pivot shaft (210) and can follow the pivot shaft (210). 210) The elastic protrusion (512) that rotates together, and the elastic protrusion (512) is at least partially elastic to allow the locking member (21) to compress the elastic protrusion (512) under the action of external force and move along the elastic protrusion (512). The box side wall (11n) or lid side wall (12n) of the first storage box (10a) moves upward, and allows the locking member (21) to deflect to the second locking position after the external force is removed. In this state, it is reset downward by the elastic force of the elastic protrusion (512).
The storage box combination according to claim 14, characterized in that: the part of the pivot shaft (210) corresponding to the second limiting slideway (111b) is covered with a device capable of moving along with the pivot shaft. (210) The cam (51) rotates together. The convex portion on the outer periphery of the cam (51) is the elastic convex portion (512) of the pivot shaft (210). The cam (51) constitutes the offset component.
The storage box combination according to claim 15, characterized in that: the peripheral wall of the pivot shaft (210) corresponding to the portion extending into the second limiting slideway (111b) has a radially outward protrusion. and a limiting rib (2101) extending along the length direction of the pivot shaft (210). The cam 51 has a mounting hole (5111) for the pivot shaft (210) to pass through. The mounting hole (5111 ) has a limiting groove (5110) on the inner wall for limiting the limiting rib (2101) to limit the rotation of the cam (51) around the pivot axis (210).
The storage box combination according to claim 14, characterized in that: the top wall of the second limiting slide (111b) is partially concavely formed with a third limiting recess (1103), and the locking member is (21) When deflected to the second locking position, the elastic protrusion (512) correspondingly snaps into the third limiting recess (1103).
The storage box combination according to any one of claims 1 to 17, characterized in that the locking member (21) constitutes a handle for the user to hold.
The storage box combination according to any one of claims 1 to 17, characterized in that the locking component (21) is provided on the cover side wall (12n) of the first storage box (10a) On the above, the lock joint portion (22) on the second storage box (10b) is a convex structure protruding outward relative to the side wall of the box (11) of the second storage box (10b), The lock engagement portion (22) is vertically aligned with the lock member (21) to allow the lock member (21) on the first storage box (10a) to deflect to the second locking position. In the position state, it can engage with the lock joint portion (22) on the second storage box (10b) to lock the first storage box (10a) and the second storage box (10b) together.
The storage box combination according to claim 19, characterized in that: the side walls of the cover (12) of the first storage box (10a) and the cover (12) of the second storage box (10b) The locking parts (21) are provided on the side walls of the first storage box (10a) and the side walls of the box (11) of the second storage box (10b). The lock joints (22) are provided on the walls.