CN215825289U - Tool box - Google Patents

Abstract

The utility model discloses a tool box, which comprises an upper shell, a lower shell, an automatic hasp component, a manual hasp component and an automatic interlocking component, wherein one ends of the upper shell and the lower shell are hinged together in a relatively rotating manner, and the automatic hasp component comprises a lower clamping tongue, a hasp and a hasp reset spring for abutting against the hasp; the manual hasp assembly comprises a clamping ring and a clamping strip, the clamping ring can be buckled with and separated from the clamping strip, the clamping ring is rotatably connected with the lower shell, and the clamping strip is arranged on the upper shell; the automatic interlocking assembly comprises a self-locking button, a button return spring and a clamping groove; the automatic hasp assembly, the manual hasp assembly and the automatic interlocking assembly are simple, convenient and quick in operation steps, reliable in locking effect and capable of greatly improving use experience.

Description

Tool box

Technical Field

The present invention relates to a locking structure of a tool box, and more particularly, to a tool box having a buckle assembly and an interlock assembly.

Background

The tool box is mainly used for placing various tools, most tool boxes adopt the hasp to realize the fixation and the locking when the upper shell and the lower shell are closed, the traditional hasp is divided into a sliding buckle, a turning buckle, an elastic buckle and the like, the tool box has the advantages of convenience, high universality, low cost and the like, and the functions of fixation and locking can be effectively realized.

The hasp of the present tool box has some limitations, one of them is a turning buckle, the turning buckle is the most type on the market, the advantage is reliable and simple, and is the most mature fixed structure, however, because the structure is single, without novelty, gradually gets rid of by the market; the other one is a sliding buckle, an original rotating shaft is changed into a sliding rail, a buckle is changed into a mode of mutually buckling an upper cover and a lower cover, the operation is convenient, the mistaken touch operation is not easy, the appearance is overall concise, but the sliding buckle must be manually closed and opened, and the sliding buckle cannot be automatically closed.

The conventional tool boxes are all independently placed, even if the tool boxes can be stacked one by one, the tool boxes can be only placed flatly, but for many household and professional users with a plurality of tool sets, if the tool boxes do not have the function of locking mutually, the tool boxes stacked together are easy to tip over when being accidentally touched, and great inconvenience is brought to work; and also inconvenient to transport and store.

Therefore, there is a need to design a new tool box to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tool box which is simple, convenient and quick in operation steps.

In order to achieve the purpose, the utility model adopts the following technical scheme: a tool box comprises an upper shell, a lower shell and an automatic interlocking assembly, wherein the upper shell can be opened relative to the lower shell, the automatic interlocking assembly comprises a self-locking button, a button reset spring and a clamping groove, the self-locking button is movably arranged on the lower shell, the self-locking button comprises a clamping tongue extending out of the lower shell downwards, the button reset spring is clamped between the lower shell and the self-locking button, the clamping groove is arranged on the upper shell, and when two tool boxes are stacked together, the self-locking button can overcome the elastic force of the button reset spring to enable the clamping tongue of one tool box to be automatically locked in the clamping groove of the other tool box; when the self-locking button is pressed, the clamping tongue can be separated from the clamping groove of the other tool box.

In a further improvement, the automatic interlocking assembly further comprises a cover body fixed on the lower shell, the cover body is provided with an accommodating part and an opening communicated with the accommodating part, the self-locking button comprises a main body part and a pressing convex part located on the outer side face of the main body part, the main body part is arranged in the accommodating part and used for limiting the self-locking button to fall off, and the pressing convex part is located in the opening and exposed on the outer side face of the cover body.

In a further improvement, the outer side surface of the lower shell is provided with a sunken part for accommodating the self-locking button, the button reset spring and the cover body.

In a further improvement, the recessed portion includes two first inner side walls opposite to each other in the front-back direction and a second inner side wall connecting the two first inner side walls, two fixing grooves opposite to each other in the front-back direction are formed in the first inner side walls, two T-shaped positioning blocks are arranged on the second inner side walls, each positioning block includes an upright portion and a horizontal portion, each horizontal portion extends from the upright portion towards the first inner side wall and is separated from the corresponding first inner side wall, a fixing groove for inserting and fixing the positioning block is formed in the inner side surface of the cover body, a plurality of fixing bumps are arranged on the outer side surface of the cover body, and each fixing bump is provided with an inclined surface for guiding the fixing bump to slide into the corresponding fixing groove.

In a further improvement, one of the lower shell and the self-locking button is provided with a guide groove, and the other is provided with a guide convex strip inserted into the guide groove and used for guiding the self-locking button to move left and right.

In a further improvement, one of the top surface of the upper shell and the bottom surface of the lower shell is provided with a plurality of limiting grooves, and the other is provided with a plurality of corresponding limiting lugs.

The utility model adopts the following technical scheme: a tool box comprises an upper shell, a lower shell, an automatic hasp assembly and an automatic interlocking assembly, wherein one end of the upper shell and one end of the lower shell are hinged together in a relatively rotating mode, the automatic hasp assembly comprises a lower clamping tongue, a hasp and a hasp reset spring clamped between the lower shell and the hasp, the lower clamping tongue is arranged on the upper shell, the hasp is rotatably connected with the lower shell, the hasp comprises an upper clamping tongue capable of being meshed with the lower clamping tongue, when the upper shell and the lower shell are closed, the lower clamping tongue presses the hasp to rotate, the hasp automatically resets under the action of the hasp reset spring after the lower clamping tongue downwards crosses the upper clamping tongue, and the upper clamping tongue and the lower clamping tongue are meshed together; the automatic interlocking assembly comprises a self-locking button, a button reset spring and a clamping groove, the self-locking button is movably arranged on the lower shell and comprises a clamping tongue extending out of the lower shell downwards, the button reset spring is clamped between the lower shell and the self-locking button, the clamping groove is arranged on the upper shell, and when two tool boxes are stacked together, the self-locking button of one tool box can overcome the elastic force of the button reset spring to enable the clamping tongue to be locked in the clamping groove of the other tool box; when the self-locking button is pressed, the clamping tongue can be separated from the clamping groove.

In a further improvement, the upper housing and the lower housing are provided with an upper concave part and a lower concave part for accommodating the automatic buckle assembly, and the upper concave part and the lower concave part are aligned up and down and are communicated.

In a further improvement, the automatic hasp component further comprises a rotating shaft, the rotating shaft penetrates through the lower shell and the hasp, and the hasp is connected with the lower shell in a rotating mode through the rotating shaft.

In a further improvement, the upper clamping tongue is positioned above the rotating shaft, the hasp return spring is positioned below the rotating shaft, and the hasp return spring is clamped between the lower shell and the hasp.

In a further improvement, the lower shell is provided with a first inner convex part, the hasp is provided with a second inner convex part, the first inner convex part is provided with a first concave part for accommodating one end of the hasp reset spring, and the second inner convex part is provided with a second concave part for accommodating the other end of the hasp reset spring.

In a further improvement, the lower housing includes two lower bosses opposite to each other in a left-right direction and two lower limiting portions located outside the two lower bosses, the lower bosses are spaced apart from the lower limiting portions, the lower bosses and the lower limiting portions are respectively provided with through holes aligned in a left-right direction, the through holes are concavely formed in the lower ends of the lower bosses and the upper ends of the lower limiting portions, and the rotating shaft is inserted into the through holes.

In a further improvement, the inner side surface of the hasp is provided with two side convex strips and an inner boss spaced from the side convex strips, the side convex strips are positioned at the side edges of the hasp, the two side convex strips and the inner boss are provided with round holes aligned in the left and right directions, the rotating shaft penetrates through the round holes, and the tail end of the inner side of the inner boss is provided with a vertical notch for abutting against the lower shell to limit the overturning stroke of the hasp.

In a further improvement, the automatic interlocking assembly further comprises a cover body fixed on the lower shell, the cover body is provided with an accommodating part and an opening communicated with the accommodating part, the self-locking button comprises a main body part and a pressing convex part located on the outer side face of the main body part, the main body part is arranged in the accommodating part and used for limiting the self-locking button to fall off, and the pressing convex part is located in the opening and exposed on the outer side face of the cover body.

In a further improvement, the outer side surface of the lower shell is provided with a concave part for accommodating the self-locking button, the button reset spring and the cover body.

In a further improvement, the recessed portion includes two first inner sidewalls opposite to each other in the front-back direction and a second inner sidewall connected between the two first inner sidewalls, two fixing grooves opposite to each other in the front-back direction are formed in the first inner sidewalls, two positioning blocks are arranged on the second inner sidewalls, each positioning block includes an upright portion and a horizontal portion, the horizontal portion extends from the upright portion toward the first inner sidewall and is spaced apart from the first inner sidewalls, a fixing groove for the positioning block to be inserted into and fixed and a fixing bump fixed in the fixing groove are formed in the inner side surface of the cover body, and the fixing bump is arranged on the outer side surface of the cover body and has an inclined surface for guiding the fixing bump to slide into the fixing groove.

In a further improvement, one of the lower shell and the self-locking button is provided with a guide groove, and the other is provided with a guide convex strip inserted into the guide groove and used for guiding the movement of the self-locking button.

In a further improvement, one of the top surface of the upper shell and the bottom surface of the lower shell is provided with a limiting groove, and the other is provided with a limiting lug.

In a further improvement, the automatic hasp assembly further comprises a rotating shaft, and the rotating shaft penetrates through the lower shell and the hasp; the upper clamping tongue is positioned above the rotating shaft, and the hasp reset spring is positioned below the rotating shaft.

In a further improvement, the lower shell is provided with a first inner convex part, the hasp is provided with a second inner convex part, the first inner convex part is provided with a first concave part for accommodating one end of the hasp reset spring, and the second inner convex part is provided with a second concave part for accommodating the other end of the hasp reset spring.

The utility model adopts the following technical scheme: a tool box comprises an upper shell, a lower shell, a manual buckle component and an automatic interlocking component, wherein one end of the upper shell and one end of the lower shell are hinged together in a relatively rotating mode, the manual buckle component comprises a snap ring and a clamping strip, the snap ring comprises a buckle arm and two side arms connected to two opposite ends of the buckle arm, the clamping strip is arranged on one of the upper shell and the lower shell, the two side arms are rotatably connected with the other of the upper shell and the lower shell, and the buckle arm can be buckled on the clamping strip and separated from the clamping strip; the automatic interlocking assembly comprises a self-locking button, a button reset spring and a clamping groove, the self-locking button is movably arranged on the lower shell and comprises a clamping tongue extending out of the lower shell downwards, the button reset spring is clamped between the lower shell and the self-locking button, the clamping groove is arranged on the upper shell, and when two tool boxes are stacked together, the self-locking button of one tool box can overcome the elastic force of the button reset spring to enable the clamping tongue to be locked in the clamping groove of the other tool box; when the self-locking button is pressed, the clamping tongue can be separated from the clamping groove.

In a further improvement, the upper housing includes two upper positioning portions, the clamping strip is connected between the two upper positioning portions, the lower housing includes two lower positioning portions aligned with the two upper positioning portions one by one, and the side arms are located outside the two lower positioning portions and are rotatably connected with the two lower positioning portions.

In a further improvement, the automatic interlocking assembly further comprises a cover body fixed on the lower shell, the cover body is provided with an accommodating part and an opening communicated with the accommodating part, the self-locking button comprises a main body part and a pressing convex part located on the outer side face of the main body part, the main body part is arranged in the accommodating part and used for limiting the self-locking button to fall off, and the pressing convex part is located in the opening and exposed on the outer side face of the cover body.

In a further improvement, the outer side surface of the lower shell is provided with a concave part for accommodating the self-locking button, the button reset spring and the cover body.

In a further improvement, the recessed portion comprises two first inner side walls which are opposite from each other in the front-back direction and a second inner side wall connected between the two first inner side walls, and fixing grooves which are opposite from each other in the front-back direction are formed in the two first inner side walls; the positioning block comprises an upright part and a horizontal part, the horizontal part extends from the upright part towards the first inner side wall and is separated from the first inner side wall, a fixing groove for the positioning block to be inserted and fixed and a fixing lug fixed in a fixing groove are arranged on the inner side surface of the cover body, and the fixing lug is arranged on the outer side surface of the cover body and is provided with an inclined surface for guiding the fixing lug to slide into the fixing groove.

In a further improvement, one of the lower shell and the self-locking button is provided with a guide groove, and the other is provided with a guide convex strip inserted into the guide groove and used for guiding the movement of the self-locking button.

In a further improvement, one of the top surface of the upper shell and the bottom surface of the lower shell is provided with a plurality of limiting grooves, and the other is provided with a plurality of corresponding limiting lugs.

The automatic hasp assembly, the manual hasp assembly and the automatic interlocking assembly of the tool box are simple, convenient and quick in operation steps, reliable in locking effect and capable of greatly improving use experience.

Drawings

Fig. 1 is a perspective view of the tool box of the present invention in a closed state.

Fig. 2 is a perspective view of the tool box of the present invention in an open state.

Fig. 3 is a cross-sectional view of the automatic buckle assembly of the tool box of the present invention.

Fig. 4 is an exploded perspective view of the self-latching assembly of the tool box of the present invention.

Fig. 5 is an exploded perspective view of the self-latching assembly of the tool box of the present invention at another angle.

Fig. 6 is a perspective view of the upper housing of the tool box of the present invention.

Fig. 7 is a perspective view of the lower housing of the tool box of the present invention.

Fig. 8 is a perspective view of the buckle of the tool box of the present invention.

Fig. 9 is another angled view of fig. 1.

Fig. 10 is a cross-sectional view of the self-interlocking assembly of the tool box of the present invention.

Fig. 11 is an exploded perspective view of the self-interlocking assembly of the tool box of the present invention.

Fig. 12 is an enlarged view in the circle of fig. 11.

Fig. 13 is a view from another angle of fig. 11.

Detailed Description

The definition of the direction in the present application is based on fig. 1, and the x direction is the right direction of the left-right direction, the y direction is the rear direction of the front-rear direction, and the z direction is the upper direction of the up-down direction.

Referring to fig. 1 to 2 and 9 to 13, the present invention discloses a portable tool box 100, which includes an upper housing 10, a lower housing 20, an automatic buckle assembly 30, a manual buckle assembly 40, an automatic interlock assembly 50 and a suspension member 80.

The automatic hasp assembly 30, the manual hasp assembly 40 and the automatic interlocking assembly 50 are independent and do not interfere with each other; the thickness of the automatic buckle assembly 30 is consistent with that of the manual buckle assembly 40, the automatic buckle assembly 30 is aligned with the surface of the manual buckle assembly 40, or the manual buckle assembly 40 protrudes out of the surface of the automatic buckle assembly 30; the automatic buckle assembly 30 and the manual buckle assembly 40 are used to lock the upper and lower cases 10 and 20 together, preventing the tool box 100 from being opened; the self-interlocking assembly 50 is used to lock two adjacent tool boxes 100 stacked together to secure a plurality of tool boxes 100 together. In normal use, the automatic buckle assembly 30 is a first heavy lock; the manual buckle assembly 40 is a secondary lock such that the upper and lower cases 10 and 20 are locked together by the manual buckle assembly 40 even if the automatic buckle assembly 30 is mistakenly touched to be unlocked, thereby preventing the tool box 100 from being abnormally opened.

The rear ends of the upper and lower cases 10 and 20 are relatively rotatably hinged together. The automatic buckle assembly 30 and the manual buckle assembly 40 are provided on the front end surfaces of the upper and lower cases 10 and 20, and the automatic interlock assembly 50 is provided on the left and/or right side surfaces of the upper and lower cases 10 and 20.

The upper housing 10 is formed integrally and includes a top wall 11, an upper front end wall 12, an upper rear end wall 13 and two upper side walls 14 connected together, the upper front end wall 12 and the upper rear end wall 13 are opposite to each other in the front-rear direction, and the two upper side walls 14 are opposite to each other in the left-right direction. The lower housing 20 is also integrally formed, and includes a bottom wall 21, a lower front end wall 22, a lower rear end wall 23, and two lower side walls 24, the lower front end wall 22 and the lower rear end wall 23 are opposite to each other in the front-rear direction, the two lower side walls 24 are opposite to each other in the left-right direction, and the lower end of the upper rear end wall 13 and the upper end of the lower rear end wall 23 are hinged together. When the upper and lower cases 10 and 20 are closed, the top wall 11 is vertically opposed to the bottom wall 21, the upper and lower front end walls 12 and 22 are vertically butted together, the upper and lower rear end walls 13 and 23 are vertically butted together, and the upper side walls 14 and the corresponding lower side walls 24 are vertically butted together. Upper and lower front end walls 12 and 22 are formed with upper and lower recesses 120 and 220 bent at their midpoints for receiving automatic buckle assemblies 30 and manual buckle assemblies 40, and upper and lower recesses 120 and 220 are vertically through.

Referring to fig. 3 to 8, the automatic buckle assembly 30 includes a lower latch 31, a buckle 32, a shaft 33 and a buckle return spring 34. The lower latch 31 extends horizontally from left to right, is integrally formed on the upper front end wall 12 of the upper housing 10, and is located in the upper concave part 120; the lower latch 31 has a bridging surface 311 and a first guiding surface 312, the bridging surface 311 is a horizontal surface and is located on the top surface of the lower latch 31, and the first guiding surface 312 is located in front of the lower latch 31, is an inclined surface or a curved surface, and faces downward.

The buckle 32 is rotatably connected to the lower front end wall 22 of the lower housing 20 through the rotating shaft 33, the lower front end wall 22 is provided with two lower bosses 221 opposite to each other in the left-right direction, two lower limiting portions 222 located outside the two lower bosses 221, and first inner convex portions 223 located below the two lower bosses 221, a receiving space 224 is provided between the two lower bosses 221, the lower bosses 221 and the lower limiting portions 222 are spaced apart from each other and are respectively provided with through holes 225 aligned in the left-right direction, the through holes 225 are concavely provided at the lower ends of the lower bosses 221 and the upper ends of the lower limiting portions 222, and the rotating shaft 33 is inserted into the through holes 225. The lower limit portions 222 are vertically arranged, and the first inner protrusion 223 is provided with a first recess 226 for receiving one end of the buckle return spring 34.

Preferably, in this embodiment, in order to facilitate the assembly between the buckle 32 and the lower housing 20, the through holes 225 on the two lower bosses 221 and the two lower retainers 222 are provided in the form of openings, and the through holes 225 on the two lower bosses 221 and the through holes 225 on the two lower retainers 222 are opened in the opposite directions. In the present embodiment, the through-hole 225 in the lower boss 221 opens in the direction of the bottom wall 21, and the through-hole 225 in the lower retainer 222 opens in the direction of the top wall 11.

The buckle 32 is located between the two lower limiting portions 222, an upper latch 321, two side protruding strips 322, an inner boss 323 and a second inner protruding portion 324 are arranged on the inner side surface of the buckle 32, the upper latch 321 is horizontally long, and the two side protruding strips 322 are respectively located on two side edges of the buckle 32 and are spaced from the inner boss 323 to the left and right. The two side convex strips 322 of the buckle 32 are respectively located between the lower boss 221 and the lower limit portion 222 on the corresponding side, and the inner boss 323 is located between the two lower bosses 221. The protruding strips 322 on both sides and the inner boss 323 are provided with round holes 325 aligned left and right, the rotating shaft 33 penetrates through the round holes 325 and simultaneously passes through the two lower bosses 221 and the through holes 225 on the two lower limiting parts 222, and then the hasp 32 is hinged with the lower boss 221 of the lower shell 20, so as to realize the hinging between the hasp 32 and the lower shell 20. The inner boss 323 is located in the receiving space 224 and has a vertical notch 326 at the inner end, as shown in fig. 3, when the upper housing 10 and the lower housing 20 are closed, the notch 326 can abut against the top surface and the front side surface of the lower front end wall 22 for limiting the turning stroke of the buckle 32, so as to prevent the buckle 32 from being turned excessively toward the inner side of the tool box 100. An annular second recess 327 is provided in the second inner protrusion 324 for receiving the other end of the snap return spring 34. The outer side of the lower portion of the buckle 32 is provided with an unlocking mark 328 for indicating a position where it can be pressed. The latch return spring 34 is located below the pivot shaft 33 and is sandwiched between the front end wall 22 of the lower housing 20 and the latch 32, urging the upper latch 321 of the latch 32 to always have a tendency to move (counterclockwise) toward the inside of the tool box 100.

The principle of operation of the automatic buckle assembly 30 is as follows: when the upper shell 10 and the lower shell 20 are closed, the first guide surface 312 of the lower latch 31 of the upper shell 10 is pressed against the upper latch 321 of the buckle 32, so that the buckle 32 overcomes the elastic force of the buckle return spring 34 and turns towards the direction (clockwise direction) far away from the inner side of the tool box 100, after the lower latch 31 crosses the upper latch 321, the buckle 32 loses the supporting effect of the lower latch 31 of the upper shell 10, the buckle return spring 34 releases the elastic force and resets, the buckle 32 also resets at the same time, namely rotates towards the direction of the inner side of the tool box 100, the upper latch 321 rotates to be positioned above the overlapping surface 311 of the lower latch 31 along with the resetting of the buckle 32 and is mutually meshed with the lower latch 31 to form a locking state, and the upper shell 10 and the lower shell 20 are automatically locked together; when the tool box 100 needs to be opened, the unlocking mark 328 on the outer side of the buckle 32 is manually pressed, the buckle return spring 34 is compressed after being stressed, the buckle 32 is turned towards the direction far away from the inner side of the tool box 100 along the rotating shaft 33, namely, clockwise turned, the upper latch 321 is turned away from the lower latch 31 along with the buckle 32 and is separated from the lower latch 31, the upper latch 31 and the lower latch 31 are not engaged any more, and the upper shell 10 and the lower shell 20 are in an unlocking state and can be easily opened.

Preferably, in this embodiment, the upper latch 321 is provided with a second guiding surface 3211, which is adapted to the shape of the first guiding surface 312 on the lower latch 31, is an inclined surface or an arc surface, and faces upward. During the process of closing the tool box 100, the first guiding surface 312 and the second guiding surface 3211 abut to guide the lower latch 31 and the upper latch 321 to engage with each other, thereby closing and locking the tool box 100.

It is understood that in other embodiments, the second guiding surface 3211 may be provided only on the upper latch 321. That is, at least one of the upper latch 321 and the lower latch 31 is provided with a guide surface for pressing the upper latch 321 and the lower latch 31 against each other to cause the hasp 32 to rotate.

Further, in the present embodiment, as shown in fig. 3, when the tool box 100 is in the locked state, the lower latch 31 is located between the upper latch 321 and the inner boss 323.

As can be seen from the above description, the operation steps of the automatic buckle assembly 30 are simple, convenient and fast, and the mode is novel and unique; the tool box 100 is hidden in the upper concave part 120 and the lower concave part 220 of the upper shell 10 and the lower shell 20 no matter in the opening and closing state, so that the space is saved, and the appearance display and the function experience are greatly improved.

To further ensure the closure of the tool box 100 and prevent the user from accidentally touching the hasp 32 to cause abnormal opening of the tool box 100, the present invention also provides a manual hasp assembly 40 as a secondary locking of the tool box 100.

The manual buckle assembly 40 includes a U-shaped clasp 41 surrounding the automatic buckle assembly 30, two upper limiting portions 42 and a clamping strip 43 located between the upper ends of the two upper limiting portions 42, the clasp 41 includes a horizontal buckle arm 411 and two side arms 412 connected to the left and right ends of the buckle arm 411, the two side arms 412 are located outside the two upper limiting portions 42 and the two lower limiting portions 222, one end of each of the two side arms 412 is connected to the left and right ends of the buckle arm 411, the other end is hinged to the front end wall 22 of the lower housing 20 through a rotating shaft 33, i.e., the clasp 41 and the buckle 32 share the same rotating shaft 33, and specifically, the side arms 412 are provided with fixing holes 413 fixedly connected to the rotating shaft 33. The two upper limiting parts 42 are aligned with the two lower limiting parts 222 one by one, and the lower latch 31 is vertically connected between the two upper limiting parts 42, is located below the clamping strip 43, and is parallel to and spaced from the clamping strip 43. The clip strip 43 is formed in a horizontal plate shape, is integrally formed on the upper front end wall 12 of the upper case 10, and is located in the upper recess 120 of the upper case 10.

The principle of operation of the manual buckle assembly 40 is as follows: after the upper casing 10 and the lower casing 20 are closed, the snap ring 41 is manually shifted to be turned upwards to a first vertical state, as shown in fig. 1, the snap arm 411 is shielded above the snap strip 43, the snap strip 43 can be limited to move upwards, the upper casing 10 is prevented from being opened, and the upper casing 10 and the lower casing 20 are locked together. When the tool box 100 needs to be opened, the manual toggle snap ring 41 is turned downwards to the second upright state, as shown in fig. 2, the snap arm 411 is separated from the snap strip 43, and the upper housing 10 is in the unlocked state and can be easily opened.

Furthermore, the outer side surfaces of the upper limit part 42 and the lower limit part 222 are respectively provided with a clamping groove 420 and a clamping groove 2220, the inner side surface of the side arm 412 is provided with a clamping point 4120, when the clamping ring 41 is turned upwards and then is shielded above the clamping strip 43, namely, when the clamping ring is in a first vertical state, the clamping point 4120 of the side arm 412 is clamped with the clamping groove 420 of the upper limit part 42, the clamping ring 41 is prevented from loosening when the tool box 100 is in a closed state, and abnormal unlocking is avoided; when the tool box 100 is in the open state, i.e., when the clasp 41 is in the second upright state, the catch 4120 of the side arm 412 engages with the catch 2220 of the lower retainer 222, thereby preventing the clasp 41 from moving arbitrarily. Meanwhile, the engagement of the click 4120 with the card slots 420 and 2220 can give feedback to the user, so that the user can confirm that the snap ring 41 is in the first upright state or the second upright state.

It should be noted that, in the present embodiment, two ends of the clip strip 43 are respectively connected to the two upper limiting portions 42, but in other embodiments, the clip strip 43 and the two upper limiting portions 42 may be independently arranged at intervals as long as the clip strip 43 and the buckle arm 411 can be ensured to be buckled.

Further, in the present embodiment, the snap ring 41 is substantially U-shaped, and the buckle arm 411 and the clip strip 43 are both horizontally disposed, but in other embodiments, the snap ring 41 may be disposed in other shapes as long as the buckle arm 411 and the clip strip 43 are adapted to be mutually buckled and limit the opening of the upper housing 10.

It should be understood that in the present embodiment, the snap ring 41 and the buckle 32 are coaxially disposed, and the turning axes thereof are both the rotating shaft 32, but in other embodiments, the snap ring 41 and the buckle 32 may be disposed non-coaxially and respectively have different turning axes. That is, in other embodiments, the manual buckle assembly 40 and the automatic buckle assembly 30 may be independently located at different positions and even on different sides of the tool box 100.

In addition, in the present embodiment, the snap ring 41 is disposed on the lower housing 20, the snap strip 43 and the two upper limiting portions 42 are disposed on the upper housing 10, the snap ring 41 is turned upwards, and the upper housing 10 and the lower housing 20 are locked and cannot be opened; the snap ring 41 is turned downwards, the upper shell and the lower shell are unlocked, and the shell can be opened. In other embodiments, the snap ring 41 can also be disposed on the upper housing 10, the snap strip 43 and the two upper limiting portions 42 are disposed on the lower housing 20, the snap ring 41 is turned downward to achieve locking, and turned upward to achieve unlocking.

Preferably, in this embodiment, the latch arm 411 is provided with a protruding operation portion 4111, which facilitates the user to operate the latch 41 to flip.

Referring to fig. 1, 9 to 13, a plurality of limiting grooves 111 are disposed on the upper surface of the top wall 11 of the upper housing 10, and the limiting grooves 111 are disposed around the top wall 11. The lower surface of the bottom wall 21 of the lower housing 20 is provided with a plurality of limiting protrusions 211 corresponding to the limiting grooves 111, when the tool boxes 100 are stacked together, the limiting protrusions 211 at the bottom of the tool box 100 above are positioned in the limiting grooves 111 at the top of the tool box 100 below one by one, so that the two adjacent tool boxes 100 are aligned accurately, and the tool boxes 100 stacked together are prevented from being dislocated. To facilitate storage or transport of a plurality of tool magazines 100, the present invention also provides a self-interlocking assembly 50 to lock a plurality of tool magazines 100 in a stacked configuration.

As shown in fig. 1, the upper surface of the top wall 11 of the upper housing 10 is provided with a snap-fit projection 112 for cooperating with a self-interlocking assembly on another tool box 100 to lock the two tool boxes 100 stacked one on another.

As shown in fig. 9 to 13, the automatic interlock assembly 50 includes a self-locking button 51, a cover 52, a button return spring 53 and a latch groove 54, wherein the latch groove 54 is recessed on the latch protrusion 112. The lower sidewall 21 of the lower case 20 is provided with a recess 210, and the latching button 51, the cover 52 and the button return spring 53 are received in the recess 210. The recessed portion 210 includes two first inner sidewalls 2101 opposite to each other in a front-rear direction, a second inner sidewall 2102 vertically connected between the two first inner sidewalls 2101, and an inner ceiling wall 2103 vertically connected between the two first inner sidewalls 2101 and the second inner sidewall 2102. The two first inner sidewalls 2101 are respectively provided with a fixing groove 251 which is opposite to each other in the front and rear direction. The second inner sidewall 2102 is provided with two guide slots 252 spaced apart from each other in the front-rear direction, a third inner protrusion 253 located between the two guide slots 252, and two T-shaped positioning blocks 254 located outside the two guide slots 252. The third inner protrusion 253 is provided with a third recess 255 for accommodating the button return spring 53, the positioning block 254 is vertically spaced from the inner top wall 2103 and is longitudinally spaced from the corresponding first inner sidewall 2101, the positioning block 254 comprises an upright portion 2541 and a horizontal portion 2542 vertically connected to the upright portion 2541, wherein the horizontal portion 2542 extends from the upright portion 2541 toward the corresponding first inner sidewall 2101, the upright portion 2541 is spaced from the inner top wall 2103, and the horizontal portion 2542 is spaced from the corresponding first inner sidewall 2101. The self-locking button 51 comprises a main body 511 and a latch 512 protruding downward from the main body 511 to the bottom wall 21 of the lower housing 20, wherein a positioning post 513 sleeved with the button return spring 53 and guiding protrusions 514 located at the front and rear side edges of the main body 511 are disposed inside the main body 511, and the two guiding protrusions 514 are respectively inserted into the two guiding grooves 252 on the second inner side wall 2102 for guiding the self-locking button 51 to move left and right. A square pressing protrusion 515 is provided on the outer surface of the body 511, and a pressing mark 516 indicating a position where the pressing can be performed is provided on the outer surface of the pressing protrusion 515. The latch 512 is hook-shaped and is used for being locked with the latch groove 54 on the other tool box.

It should be noted that, in the present embodiment, the guide groove 252 extends through the second inner side wall 2102. In other embodiments, the guiding groove 252 may be a blind hole with a depth that can satisfy the left and right movement of the latching button 51. Similarly, the fixing groove 251 may be a blind hole having a certain depth, as long as the fixing between the cover 52 and the lower housing 20 is achieved. In other embodiments, the guiding groove 252 may be disposed on the latching button 51, and the guiding protrusion 514 is correspondingly disposed on the second inner sidewall 2102.

It is understood that the guide slot 252 and the guide rib 514 of the present embodiment are used for guiding the latch button 51 to move left and right, and in other embodiments, other ways for guiding the movement of the latch button 51 can be used.

Optionally, in another embodiment, an annular convex wall (not shown) is disposed inside the main body 511 and concentric with the positioning pillar 513 at an interval, and the annular convex wall can be sleeved outside the third inner convex portion 253, so that the movement of the lock button 51 is guided by the annular convex wall and the outer wall of the third inner convex portion 253.

The cover 52 is assembled in the recess 210, and two sides of the cover respectively abut against the two first inner side walls 2101, so that the cover is limited by the two first inner side walls 2101 to move back and forth; the cover 52 is used to restrict the lock button 51 from falling off the lower case 20. The inner side of the cover 52 is provided with an accommodating portion 521 and an opening 522, the inner sides of the two ends are respectively provided with a fixing groove 523, and the outer surfaces of the two ends are respectively provided with a plurality of fixing protrusions 524. The accommodating portion 521 is penetrated through the opening 522, the main body portion 511 of the latching button 51 is disposed in the accommodating portion 521, the latch 512 extends downward out of the cover 52, and the pressing protrusion 515 is disposed in the opening 522 and exposed to the outer side of the cover 52 for the user to press. The two fixing grooves 523 are respectively positioned at the front end and the rear end of the accommodating part 521, and the shape of the fixing grooves is matched with that of the T-shaped positioning block 254 and is also approximately T-shaped; the fixing protrusions 524 are located on the outer side surfaces of the front and rear ends of the cover 52, and in the present embodiment, two fixing protrusions 524 are respectively disposed at two ends of the cover 52.

As shown in fig. 9 to 13, the latching button 51 and the cover 52 are both disposed in the recess 210 of the lower case 20, and the latching button 51 is disposed between the cover 52 and the recess 210. Specifically, the button return spring 53 is sleeved on the positioning post 513 of the latching button 51, and one end of the button return spring abuts against the latching button 51, and the other end of the button return spring is embedded in the third concave portion 255 and abuts against the second inner sidewall 2102, so that the button return spring is clamped between the second inner sidewall 2102 and the main body portion 511, and provides an elastic force for automatically returning the latching button 51. The guide convex strips 514 at the two sides of the latching button 51 are respectively inserted into the two guide grooves 252, and the latching button 51 can be guided to move left and right while the up-and-down and front-and-back movement of the latching button 51 is limited. The cover 52 is positioned at the outer side of the self-locking button 51, the opening 522 of the cover is aligned with the pressing convex part 515 at the outer side of the self-locking button 51, and the two positioning blocks 254 are respectively embedded into the fixing grooves 523 at the two ends of the cover 52 to limit the up-down and front-back movement of the cover 52; meanwhile, a plurality of fixing projections 524 on the outer side of the cover 52 are respectively fitted into the corresponding fixing grooves 251, thereby restricting the left and right movement of the cover 52. Preferably, in this embodiment, the fixing protrusion 524 is further provided with a slope for guiding the fixing protrusion 524 to slide into the fixing groove 251. The locking groove 54 is recessed in the locking protrusion 112 of the upper housing 10. When two or more tool boxes 100 are stacked, the latch 512 of the upper tool box can be inserted into the latch slot 54 of the lower tool box 100 to be latched with the latch protrusion 112 of the lower tool box 100, so as to lock the upper and lower tool boxes 100. Preferably, in the present embodiment, the latch protrusion 112 and the latch 512 are respectively provided with an inclined surface for guiding the latch 512 to slide into the latch groove 54.

The principle of operation of the self-interlocking assembly 50 is as follows: when the two tool boxes 100 are overlapped, the buckling lug 112 of the lower tool box 100 is pressed against the inclined surface of the buckling tongue 512 of the upper tool box 100, so that the self-locking button 51 of the upper tool box 100 overcomes the elastic force of the button return spring 53 to horizontally move towards the inner side of the tool box, the guiding protrusion 514 moves toward the inner side of the tool box under the guiding of the guiding slot 252, and after the latch 512 of the upper tool box passes over the latch protrusion 112 of the lower tool box 100 and enters the latch slot 54 thereof, the latch 512 of the upper tool box 100 loses the abutting force of the latch lug 112 of the lower tool box 100, the button return spring 53 releases the elastic force, abuts against the self-locking button 51 of the upper tool box 100, moves horizontally to the outside of the tool box and returns, the latch 512 of the upper tool box 100 is embedded into the latch groove 54 of the lower tool box 100, the locking device is mutually meshed with the buckling lug 112 of the tool box 100 below to form a locking state, so that the two tool boxes 100 are automatically locked; when the two tool boxes 100 need to be unlocked, a user presses the pressing convex part 515 of the upper tool box 100 to push the self-locking button 51 to move horizontally towards the inner side of the tool box, the button return spring 53 is stressed and then compressed, the self-locking button 51 moves horizontally towards the inner side of the tool box, and the self-locking button cannot be pressed continuously when the tool box is moved to the end, at this time, the latch 512 of the upper tool box 100 is separated from the latch groove 54 of the lower tool box 100 and is not latched with the latch lug 112 of the lower tool box 100, and the locking between the upper tool box 100 and the lower tool box 100 is released. When the upper tool box 100 is removed, the user releases the pressing of the pressing protrusion 515, and the self-lock button 51 is horizontally moved to the outside of the tool box by the button return spring 53 and is reset.

Preferably, in the present embodiment, in a natural state, that is, in a state where another tool box 100 is not locked, and after the locking between the upper and lower tool boxes 100 is completed, the pressing portion 515 of the latching button 51 protrudes from the outer surface of the cover 52 or is coplanar with the outer surface of the cover 52, so that it is more convenient for a user to operate the pressing portion 515 to unlock the upper and lower tool boxes 100.

As can be seen from the above description, the operation steps of the automatic interlocking assembly 50 are simple, convenient and fast, and the mode is novel and unique; the assembly of the self-interlocking component 50 in the recess 210 of the lower housing 20 saves space and greatly improves the appearance and the functional experience.

It should be noted that, in the present embodiment, as shown in fig. 1 and 13, the tool box 100 is only provided with a set of self-interlocking components 50 at the right side thereof and a set of fixing snap components at the left side thereof. Specifically, as shown in fig. 1, the outer surface of the top wall 11 of the tool box 100 is provided with a fixing latch 113, and correspondingly, as shown in fig. 13, the outer surface of the bottom wall 21 is provided with a fixing latch groove 213. When two or more tool boxes 100 are to be stacked and locked, the fixing latch groove 213 of the upper tool box 100 is aligned with the fixing latch 113 of the lower tool box 100, and the fixing latch 113 of the lower tool box 100 is inserted into the fixing latch groove 213 of the upper tool box 100, so as to position and lock the left sides of the upper and lower tool boxes 100. The right side of the upper tool box 100 is then depressed again, and the automatic locking of the right sides of the upper and lower tool boxes 100 is achieved by the automatic interlock assembly 50 described above. In this way, complete locking between the upper and lower tool boxes 100 is achieved. In other embodiments, a set of self-interlocking assemblies 50 may be centered on both the left and right sides of the tool box 100.

It is understood that the position and number of the self-interlocking assemblies 50 can be adjusted differently, such as a set of self-interlocking assemblies 50 can be disposed on the left, right, and rear sides of the tool box 100, either centered or not.

Referring to fig. 1, the tool box 100 is further provided with a hanging member 80, and the hanging member 80 is used for hanging the tool box 100 on a shelf. One end of the hanging member 80 is clamped and fixed by the upper side wall 14 of the upper casing 10 and the lower side wall 24 of the lower casing 20, and the other opposite end extends out of the upper casing 10 and the lower casing 20, and the other opposite end is provided with a hanging hole 82 for hanging on a shelf. In other embodiments, one end of the hanger 80 is fixed to the upper case 10 or the lower case 20.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the utility model as disclosed in the accompanying claims.

Claims (27)

1. A tool box comprising an upper housing, a lower housing and a self-interlocking assembly, said upper housing being openable relative to said lower housing, characterized in that: the automatic interlocking assembly comprises a self-locking button, a button reset spring and a clamping groove, the self-locking button is movably arranged on the lower shell and comprises a clamping tongue extending out of the lower shell downwards, the button reset spring is clamped between the lower shell and the self-locking button, the clamping groove is arranged on the upper shell, and when the two tool boxes are stacked together, the self-locking button can overcome the elastic force of the button reset spring to enable the clamping tongue of one tool box to be automatically locked in the clamping groove of the other tool box; when the self-locking button is pressed, the clamping tongue can be separated from the clamping groove of the other tool box.

2. The tool box of claim 1, wherein: the automatic interlocking assembly further comprises a cover body fixed on the lower shell, the cover body is provided with an accommodating portion and an opening communicated with the accommodating portion, the self-locking button comprises a main body portion and a pressing convex portion located on the outer side face of the main body portion, the main body portion is arranged in the accommodating portion and used for limiting the self-locking button to fall off, and the pressing convex portion is located in the opening and exposed on the outer side face of the cover body.

3. The tool box of claim 2, wherein: the outer side face of the lower shell is provided with a sunken part for accommodating the self-locking button, the button reset spring and the cover body.

4. The tool box of claim 3, wherein: the concave part comprises two first inner side walls and a second inner side wall, the two first inner side walls are opposite to each other in the front-back direction, two fixing grooves are opposite to each other in the front-back direction and arranged on the first inner side walls, two T-shaped positioning blocks are arranged on the second inner side walls, each positioning block comprises an upright part and a horizontal part, the horizontal part extends from the upright part towards the first inner side wall and is separated from the corresponding first inner side wall, a fixing groove for the positioning blocks to be inserted and fixed is formed in the inner side surface of the cover body, a plurality of fixing lugs are arranged on the outer side surface of the cover body, and each fixing lug is provided with an inclined surface for guiding the fixing lug to slide into the fixing groove.

5. The tool box of claim 1, wherein: one of the lower shell and the self-locking button is provided with a guide groove, and the other one of the lower shell and the self-locking button is provided with a guide convex strip inserted into the guide groove and used for guiding the self-locking button to move left and right.

6. The tool box of claim 1, wherein: one of the top surface of the upper shell and the bottom surface of the lower shell is provided with a plurality of limiting grooves, and the other is provided with a plurality of corresponding limiting lugs.

7. A tool box, which comprises an upper shell, a lower shell, an automatic buckle component and an automatic interlocking component, wherein one ends of the upper shell and the lower shell are hinged together in a relatively rotatable manner, and the tool box is characterized in that: the automatic hasp component comprises a lower clamping tongue, a hasp and a hasp reset spring clamped between the lower shell and the hasp, the lower clamping tongue is arranged on the upper shell, the hasp is rotationally connected with the lower shell, the hasp comprises an upper clamping tongue capable of being meshed with the lower clamping tongue, when the upper shell and the lower shell are closed, the lower clamping tongue presses the hasp to rotate, the hasp automatically resets under the action of the hasp reset spring after the lower clamping tongue downwards crosses the upper clamping tongue, and the upper clamping tongue and the lower clamping tongue are meshed together; the automatic interlocking assembly comprises a self-locking button, a button reset spring and a clamping groove, the self-locking button is movably arranged on the lower shell and comprises a clamping tongue extending out of the lower shell downwards, the button reset spring is clamped between the lower shell and the self-locking button, the clamping groove is arranged on the upper shell, and when two tool boxes are stacked together, the self-locking button of one tool box can overcome the elastic force of the button reset spring to enable the clamping tongue to be locked in the clamping groove of the other tool box; when the self-locking button is pressed, the clamping tongue can be separated from the clamping groove.

8. The tool box of claim 7, wherein: the upper shell and the lower shell are provided with an upper concave part and a lower concave part for accommodating the automatic buckle component, and the upper concave part and the lower concave part are aligned up and down and are communicated.

9. The tool box of claim 7, wherein: the automatic hasp component further comprises a rotating shaft, the rotating shaft penetrates through the lower shell and the hasp, and the hasp is connected with the lower shell in a rotating mode through the rotating shaft.

10. The tool box of claim 9, wherein: the upper clamping tongue is positioned above the rotating shaft, the hasp reset spring is positioned below the rotating shaft, and the hasp reset spring is clamped between the lower shell and the hasp.

11. The tool box of claim 7, wherein: the lower shell is provided with a first inner convex part, the hasp is provided with a second inner convex part, the first inner convex part is provided with a first concave part for accommodating one end of the hasp reset spring, and the second inner convex part is provided with a second concave part for accommodating the other end of the hasp reset spring.

12. The tool box of claim 9, wherein: the lower shell comprises two lower bosses which are opposite left and right and two lower limiting parts which are positioned on the outer sides of the two lower bosses, the lower bosses are spaced from the lower limiting parts, the lower bosses and the lower limiting parts are respectively provided with through holes which are aligned left and right, the through holes are concavely arranged at the lower ends of the lower bosses and the upper ends of the lower limiting parts, and the rotating shaft penetrates through the through holes.

13. The tool box of claim 9, wherein: the inner side surface of the hasp is provided with two side convex strips and an inner boss spaced from the side convex strips, the side convex strips are located on the side edges of the hasp, the two side convex strips and the inner boss are provided with round holes which are aligned left and right, the rotating shaft penetrates through the round holes, and the tail end of the inner side of the inner boss is provided with a vertical notch which is used for abutting against the lower shell to limit the overturning stroke of the hasp.

14. The tool box of claim 7, wherein: the automatic interlocking assembly further comprises a cover body fixed on the lower shell, the cover body is provided with an accommodating portion and an opening communicated with the accommodating portion, the self-locking button comprises a main body portion and a pressing convex portion located on the outer side face of the main body portion, the main body portion is arranged in the accommodating portion and used for limiting the self-locking button to fall off, and the pressing convex portion is located in the opening and exposed on the outer side face of the cover body.

15. The tool box of claim 14, wherein: the outer side face of the lower shell is provided with a concave part for accommodating the self-locking button, the button reset spring and the cover body.

16. The tool box of claim 15, wherein: the concave part comprises two first inner side walls which are opposite from front to back and a second inner side wall connected between the two first inner side walls, two fixing grooves which are opposite from front to back are formed in the first inner side walls, two positioning blocks are arranged on the second inner side walls, each positioning block comprises an upright part and a horizontal part, the horizontal part extends from the upright part towards the first inner side wall and is separated from the first inner side wall, a fixing groove for the positioning blocks to be inserted and fixed and a fixing lug fixed in the fixing grooves are formed in the inner side surface of the cover body, and the fixing lug is arranged on the outer side surface of the cover body and provided with an inclined surface for guiding the fixing lug to slide into the fixing grooves.

17. The tool box of claim 7, wherein: one of the lower shell and the self-locking button is provided with a guide groove, and the other one of the lower shell and the self-locking button is provided with a guide convex strip inserted into the guide groove and used for guiding the self-locking button to move.

18. The tool box of claim 7, wherein: one of the top surface of the upper shell and the bottom surface of the lower shell is provided with a limiting groove, and the other is provided with a limiting lug.

19. The tool box of claim 7, wherein: the automatic hasp assembly further comprises a rotating shaft, and the rotating shaft penetrates through the lower shell and the hasp; the upper clamping tongue is positioned above the rotating shaft, and the hasp reset spring is positioned below the rotating shaft.

20. The tool box of claim 7, wherein: the lower shell is provided with a first inner convex part, the hasp is provided with a second inner convex part, the first inner convex part is provided with a first concave part for accommodating one end of the hasp reset spring, and the second inner convex part is provided with a second concave part for accommodating the other end of the hasp reset spring.

21. A tool box, which comprises an upper shell, a lower shell, a manual buckle component and an automatic interlocking component, wherein one ends of the upper shell and the lower shell are hinged together in a relatively rotatable way, and the tool box is characterized in that: the manual hasp assembly comprises a clamping ring and a clamping strip, the clamping ring comprises a buckling arm and two side arms connected to two opposite ends of the buckling arm, the clamping strip is arranged on one of the upper shell and the lower shell, the two side arms are rotatably connected with the other of the upper shell and the lower shell, and the buckling arm can be buckled on the clamping strip and separated from the clamping strip; the automatic interlocking assembly comprises a self-locking button, a button reset spring and a clamping groove, the self-locking button is movably arranged on the lower shell and comprises a clamping tongue extending out of the lower shell downwards, the button reset spring is clamped between the lower shell and the self-locking button, the clamping groove is arranged on the upper shell, and when two tool boxes are stacked together, the self-locking button of one tool box can overcome the elastic force of the button reset spring to enable the clamping tongue to be locked in the clamping groove of the other tool box; when the self-locking button is pressed, the clamping tongue can be separated from the clamping groove.

22. The tool box of claim 21, wherein: the upper shell comprises two upper limiting parts, the clamping strip is connected between the two upper limiting parts, the lower shell comprises two lower limiting parts which are aligned with the two upper limiting parts one by one, and the side arms are located on the outer sides of the two lower limiting parts and are rotatably connected with the two lower limiting parts.

23. The tool box of claim 21, wherein: the automatic interlocking assembly further comprises a cover body fixed on the lower shell, the cover body is provided with an accommodating portion and an opening communicated with the accommodating portion, the self-locking button comprises a main body portion and a pressing convex portion located on the outer side face of the main body portion, the main body portion is arranged in the accommodating portion and used for limiting the self-locking button to fall off, and the pressing convex portion is located in the opening and exposed on the outer side face of the cover body.

24. The tool box of claim 23, wherein: the outer side face of the lower shell is provided with a concave part for accommodating the self-locking button, the button reset spring and the cover body.

25. The tool box of claim 24, wherein: the concave part comprises two first inner side walls which are opposite from each other in the front-back direction and a second inner side wall connected between the two first inner side walls, and fixing grooves which are opposite from each other in the front-back direction are formed in the two first inner side walls; the positioning block comprises an upright part and a horizontal part, the horizontal part extends from the upright part towards the first inner side wall and is separated from the first inner side wall, a fixing groove for the positioning block to be inserted and fixed and a fixing lug fixed in a fixing groove are arranged on the inner side surface of the cover body, and the fixing lug is arranged on the outer side surface of the cover body and is provided with an inclined surface for guiding the fixing lug to slide into the fixing groove.

26. The tool box of claim 21, wherein: one of the lower shell and the self-locking button is provided with a guide groove, and the other one of the lower shell and the self-locking button is provided with a guide convex strip inserted into the guide groove and used for guiding the self-locking button to move.

27. The tool box of claim 21, wherein: one of the top surface of the upper shell and the bottom surface of the lower shell is provided with a plurality of limiting grooves, and the other is provided with a plurality of corresponding limiting lugs.

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