Stacked tool box

Abstract

The utility model relates to a stackable tool box which comprises a box body unit, at least one drawer unit and at least one locking unit. The drawer has the advantages that the drawer unit can be simply and conveniently locked and unlocked through the locking unit, and the drawer unit is prevented from automatically moving without external force; due to the unique design of a third sliding element of the locking unit, elastic limiting can be provided, and a user can quickly sense the state of the locking unit; the locking unit and the box body unit can be locked through the lock, the secondary locking effect is achieved, and irrelevant personnel are prevented from drawing the drawer unit at will.

Description

Technical Field

[0001] This utility model relates to the field of toolbox technology, and more particularly to stackable toolboxes. Background Technology

[0002] like Figure 1 As shown, the existing toolbox has the following drawer locking structure: There are rotating hooks on both sides of the drawer handle, which can be reset due to the action of springs; a positioning post is provided on the drawer shell. When the drawer is closed, the rotating hooks engage the positioning post, achieving the limiting function after the drawer is closed.

[0003] However, the above structure has the following drawbacks: the drawer's limiting structure is relatively complex, and the product's production cost is high; it only has a limiting function and cannot lock the drawer.

[0004] Currently, no effective solutions have been proposed for the problems existing in related technologies, such as complex limiting structures and the inability to lock drawers. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a stackable toolbox to solve problems such as complex limiting structures and the inability to lock drawers.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A stackable toolbox, comprising:

[0008] Box unit;

[0009] At least one drawer unit, the drawer unit being movably connected to the cabinet unit, for reciprocating movement along the horizontal direction of the cabinet unit;

[0010] At least one locking unit is movably connected to the housing unit and removably locked to the drawer unit, for reciprocating along the vertical direction of the housing unit to lock or unlock the drawer unit.

[0011] In some embodiments, the housing unit includes:

[0012] Enclosure components;

[0013] At least one first locking element is disposed on the side of the housing element for cooperating with the locking unit and locking the locking unit under the action of the locking device.

[0014] In some embodiments, the housing unit further includes:

[0015] A plurality of first sliding elements are distributed inside the housing element and are slidably connected to the corresponding drawer unit, for the drawer unit to reciprocate along the horizontal direction of the housing element.

[0016] In some embodiments, the housing unit further includes:

[0017] At least one snap-fit ​​element is disposed on the side of the housing element for removable connection with an external snap-fit ​​assembly.

[0018] In some embodiments, the housing unit further includes:

[0019] Two handle elements are symmetrically arranged on both sides of the housing element and are rotatably connected to the housing element respectively.

[0020] In some embodiments, the drawer unit includes:

[0021] A drawer element, which is slidably connected to the cabinet unit, is used for reciprocating movement along the horizontal direction of the cabinet unit;

[0022] At least one first locking element is disposed on the side of the drawer element and is removably locked to the corresponding locking unit for restricting the movement of the drawer element when locked to the locking unit.

[0023] In some embodiments, the drawer unit further includes:

[0024] Two second sliding elements are symmetrically arranged on both sides of the drawer element and are slidably connected to the cabinet unit respectively.

[0025] In some embodiments, the locking unit includes:

[0026] A first fixing element is disposed on the side of the housing unit;

[0027] A third sliding element is disposed on a corresponding first fixed element;

[0028] A control element is movably connected to the housing unit and is used for reciprocating motion along the vertical direction of the housing unit;

[0029] A fourth sliding element, which is slidably connected to the side of the control element and to the third sliding element;

[0030] At least one second locking element is disposed on the side of the control element and is used to follow the control element in reciprocating motion along the vertical direction of the housing unit to lock or unlock the drawer unit;

[0031] At least one second locking element is disposed on the side of the control element for cooperating with the housing unit and locking the control element under the action of the locking device.

[0032] In some embodiments, the locking unit further includes:

[0033] A plurality of first guide elements are symmetrically arranged on both sides of the third sliding element, for cooperating with the third sliding element to elastically limit the fourth sliding element.

[0034] In some embodiments, the locking unit further includes:

[0035] At least one first limiting element is disposed on the side of the housing unit;

[0036] At least one second limiting element is disposed on the side of the control element and is limitedly connected to the corresponding first limiting element to restrict the range of motion of the control element.

[0037] In some embodiments, the locking unit and the drawer unit have a one-to-one relationship.

[0038] In some embodiments, the locking unit and the drawer unit have a one-to-many relationship.

[0039] The present invention adopts the above technical solution and has the following technical effects compared with the prior art:

[0040] This utility model discloses a stackable toolbox. The locking unit allows for easy and convenient locking and unlocking of the drawer unit, preventing it from moving on its own without external force. The unique design of the third sliding element of the locking unit provides elastic limiting, allowing users to quickly perceive the status of the locking unit. The lock can lock both the locking unit and the box body, achieving a secondary locking effect and preventing unauthorized personnel from pulling out the drawer unit at will. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of a drawer locking and limiting mechanism in the prior art;

[0042] Figure 2 This is a schematic diagram (a) of the stackable toolbox according to the present invention;

[0043] Figure 3 This is a schematic diagram (II) of the stackable toolbox according to the present invention;

[0044] Figure 4 This is a schematic diagram of the housing unit according to an embodiment of the present utility model;

[0045] Figure 5 This is a schematic diagram of a drawer unit according to an embodiment of the present utility model;

[0046] Figure 6 This is a schematic diagram (a) of the locking unit according to an embodiment of the present utility model;

[0047] Figure 7 This is a schematic diagram (II) of the locking unit according to an embodiment of the present utility model;

[0048] Figure 8 This is a schematic diagram (iii) of the locking unit according to an embodiment of the present utility model;

[0049] Figure 9 This is a schematic diagram (four) of the locking unit according to an embodiment of the present utility model.

[0050] The reference numerals in the attached drawings are as follows: 100, housing unit; 101, housing element; 102, first locking element; 103, first sliding element; 104, snap-fit ​​element; 105, handle element;

[0051] 200, drawer unit; 201, drawer element; 202, first locking element; 203, second sliding element;

[0052] 300. Locking unit; 301. First fixing element; 302. Third sliding element; 303. Control element; 304. Fourth sliding element; 305. Second locking element; 306. Second locking element; 307. First guide element; 308. First limiting element; 309. Second limiting element. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0054] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0055] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0056] An illustrative embodiment of this utility model. For example... Figures 2-3 As shown, a stackable toolbox includes a box body unit 100, at least one drawer unit 200, and at least one locking unit 300; wherein, the drawer unit 200 is slidably connected to the box body unit 100 and is used for reciprocating movement along the horizontal direction of the box body unit 100; the locking unit 300 is movably connected to the box body unit 100 and is removably locked to the drawer unit 200, and is used for reciprocating movement along the vertical direction of the box body unit 100 to lock or unlock the drawer unit 200.

[0057] In some embodiments, there are multiple drawer units 200. These multiple drawer units 200 are stacked inside the housing unit 100. The multiple drawer units 200 are independent of each other and do not interfere with each other.

[0058] Several drawer units 200 may have the same or different specifications (such as height, volume, etc.).

[0059] The number of locking units 300 matches the number of drawer units 200. Generally, the number of drawer units 200 is an integer multiple of the number of locking units 300. That is, the number of locking units 300 is less than or equal to the number of drawer units 200. In other words, each locking unit 300 corresponds to at least one drawer unit 200.

[0060] When there are multiple locking units 300, the multiple locking units 300 can be located on the same side of the housing unit 100 or on different sides of the housing unit 100.

[0061] In this utility model, the relationship between the locking unit 300 and the drawer unit 200 includes the following methods:

[0062] (1) A drawer unit 200 and a locking unit 300;

[0063] (2) Several drawer units 200 and a locking unit 300, wherein the locking unit 300 can lock or unlock several drawer units 200 simultaneously;

[0064] (3) Several drawer units 200 and several locking units 300, at least one locking unit 300 can lock or unlock at least one drawer unit 200, that is, it can be a one-to-one relationship or a one-to-many relationship.

[0065] For a one-to-one relationship, each drawer unit 200 can be controlled individually; for a one-to-many relationship, a locking unit 300 can be used to lock or unlock several drawer units 200 simultaneously.

[0066] like Figure 4 As shown, the housing unit 100 includes a housing element 101 and at least one first locking element 102. The first locking element 102 is disposed on the side of the housing element 101 and is used to cooperate with the locking unit 300 and to lock the locking unit 300 under the action of the locking device.

[0067] In some embodiments, the housing element 101 includes a housing and at least one side panel. The housing has a plurality of first sliding elements 103 slidably connected to the drawer unit 200. The side panel is located at a corner of the housing, forming an accommodating space between the side panel and the housing for housing the locking unit 300.

[0068] In some embodiments, there are several side panels (e.g., four). The side panels are distributed at the corners of the housing.

[0069] In some of these embodiments, housing element 101 is a housing for holding tools.

[0070] The first locking element 102 is disposed through the side (i.e., side plate) of the housing element 101.

[0071] Generally, the number of first locking elements 102 is equal to the number of locking units 300.

[0072] In some of these embodiments, the first locking element 102 includes, but is not limited to, a locking through hole.

[0073] Furthermore, the cabinet element 101 also includes a plurality of first sliding elements 103. The plurality of first sliding elements 103 are distributed inside the cabinet element 101 and are slidably connected to the corresponding drawer unit 200, for allowing the drawer unit 200 to reciprocate along the horizontal direction of the cabinet element 101.

[0074] A plurality of first sliding elements 103 are symmetrically arranged on the left and right sides of the interior of the housing element 101. Specifically, at least one first sliding element 103 is arranged on the left side of the interior of the housing element 101, and at least one first sliding element 103 is arranged on the right side of the interior of the housing element 101. The number of first sliding elements 103 arranged on the left side of the interior of the housing element 101 is equal to the number of first sliding elements 103 arranged on the right side of the interior of the housing element 101.

[0075] When a plurality of first sliding elements 103 are provided on the left and right sides inside the housing element 101, the plurality of first sliding elements 103 are spaced apart along the height direction of the housing element 101.

[0076] Generally, the number of first sliding elements 103 is twice the number of drawer units 200.

[0077] In some of these embodiments, the first sliding element 103 includes, but is not limited to, a slide rail.

[0078] Furthermore, the housing unit 100 also includes at least one snap-fit ​​element 104. The snap-fit ​​element 104 is disposed on the side of the housing unit 101 and is used for removable connection with an external snap-fit ​​assembly.

[0079] The snap-fit ​​element 104 is installed through the side (i.e., side panel) of the housing element 101.

[0080] The number of snap-fit ​​elements 104 matches the number of side panels. Generally, the number of snap-fit ​​elements 104 is an integer multiple of the number of side panels. That is, each side panel is provided with at least one snap-fit ​​element 104. When several snap-fit ​​elements 104 are provided on each side panel, the snap-fit ​​elements 104 are distributed (e.g., arranged in an array) along the length and / or width direction of the side panel.

[0081] In some embodiments, the snap-fit ​​element 104 includes, but is not limited to, snap-fit ​​holes and snap-fit ​​grooves. For a side plate on which the snap-fit ​​element 104 is provided, its structure is as follows: the side plate includes a mounting surface and a latching surface, the mounting surface being the outer side surface of the side plate, and the latching surface being the inner side surface of the side plate. Preferably, the latching surface is parallel to the mounting surface.

[0082] Furthermore, the housing unit 100 also includes two handle elements 105. The two handle elements 105 are symmetrically arranged on both sides of the housing element 101 and are rotatably connected to the housing element 101 respectively.

[0083] The purpose of providing the handle element 105 is to facilitate lifting the entire housing element 101.

[0084] Two handle elements 105 are symmetrically arranged on both sides of the housing element 101. In the unused state, the handle elements 105 are arranged parallel to the left (right) wall of the housing element 101; in the used state, the handle elements 105 and the housing element 101 form an angle, for example, 90°.

[0085] In some embodiments, the housing element 101 further includes two recesses. The two recesses are symmetrically arranged on both sides of the housing, and a corresponding handle element 105 is rotatably disposed inside each recess. In the unused state, the two handle elements 105 are completely located inside the recesses, that is, the handle elements 105 cannot be seen from a top view.

[0086] In some of these embodiments, the handle element 105 includes, but is not limited to, a rotating handle.

[0087] like Figure 5 As shown, the drawer unit 200 includes a drawer element 201 and at least one first locking element 202. The drawer element 201 is slidably connected to the cabinet unit 100 and is used for reciprocating movement along the horizontal direction of the cabinet unit 100. The first locking element 202 is disposed on the side of the drawer element 201 and is removably locked to a corresponding locking unit 300, used to restrict the movement of the drawer element 201 when locked to the locking unit 300.

[0088] Specifically, the drawer element 201 is movably disposed inside the box element 101; the two second sliding elements 203 are respectively slidably connected to the corresponding first sliding element 103.

[0089] Drawer element 201 has a structure with an open top and a closed bottom.

[0090] In some of these embodiments, drawer element 201 includes, but is not limited to, a drawer.

[0091] The first locking element 202 is provided at least at the front end of the drawer element 201. That is, when the drawer element 201 is completely inside the cabinet element 101, the first locking element 202 locks with the locking unit 300.

[0092] In some embodiments, there are multiple first locking elements 202. These multiple first locking elements 202 are spaced apart along the width direction (i.e., the depth direction) of the drawer element 201. The purpose of this design is to lock the drawer element 201 when it protrudes from the housing element 101, thus stopping the drawer element 201 in a specific position (i.e., limiting the protrusion range of the drawer element 201).

[0093] In some embodiments, the first locking element 202 includes, but is not limited to, a limiting groove and a limiting notch.

[0094] Furthermore, the drawer unit 200 also includes two second sliding elements 203. The two second sliding elements 203 are symmetrically arranged on both sides of the drawer element 201 and are slidably connected to the cabinet unit 100 respectively.

[0095] Specifically, the two second sliding elements 203 are slidably connected to the corresponding first sliding elements 103.

[0096] Two second sliding elements 203 are symmetrically arranged on the left and right sides of the drawer element 201.

[0097] The second sliding element 203 cooperates with the first sliding element 103 to realize the movement of the drawer element 201. Generally, the sliding of the second sliding element 203 and the first sliding element 103 can be either inseparable or separate (i.e., the drawer element 201 can be pulled out from the cabinet element 101).

[0098] The sliding engagement between the second sliding element 203 and the first sliding element 103 is prior art in this field and will not be described in detail here.

[0099] In some of these embodiments, the second sliding element 203 includes, but is not limited to, a slide rail.

[0100] like Figures 6-9 As shown, the locking unit 300 includes a first fixing element 301, a third sliding element 302, a control element 303, a fourth sliding element 304, at least one second locking element 305, and at least one second locking element 306. The first fixing element 301 is disposed on the side of the cabinet unit 100; the third sliding element 302 is disposed on the corresponding first fixing element 301; the control element 303 is movably connected to the cabinet unit 100 and is used for reciprocating movement along the vertical direction of the cabinet unit 100; the fourth sliding element 304 is disposed on the side of the control element 303 and is slidably connected to the third sliding element 302; the second locking element 305 is disposed on the side of the control element 303 and is used to follow the control element 303 in reciprocating movement along the vertical direction of the cabinet unit 100 to lock or unlock the drawer unit 200; the second locking element 306 is disposed on the side of the control element 303 and is used to cooperate with the cabinet unit 100 and to lock the control element 303 under the action of the locking device.

[0101] Specifically, the first fixing element 301 is disposed on the side of the housing element 101 (i.e., between the side panel and the housing) and connected to the housing element 101 (housing); the operating element 303 is movably disposed on the side of the housing element 101 (i.e., between the side panel and the housing); the second locking element 305 is removably locked to the corresponding first locking element 202; and the second locking element 306 is connected to the first locking element 102.

[0102] In some embodiments, the housing element 101 also includes a through slot. The through slot extends through the side panel to expose the control element 303, facilitating user operation of the control element 303.

[0103] The first fixing element 301 is detachably connected to the housing element 101, including but not limited to plug-in, snap-fit, bolt connection, etc.

[0104] In some of these embodiments, the first fixing element 301 includes, but is not limited to, a fixing block.

[0105] The third sliding element 302 is disposed through the first fixed element 301.

[0106] In some embodiments, the width of the middle portion of the third sliding element 302 is smaller than the width of its end portion. For example, the width of the third sliding element 302 decreases from its top to its middle portion and increases from its middle portion to its bottom. This shape allows the user to easily perceive whether the fourth sliding element 304 has moved to the end portion of the third sliding element 302 (i.e., the locked position, unlocked position) when the fourth sliding element 304 slides along the third sliding element 302. Furthermore, this shape ensures that the fourth sliding element 304 can only slide along the third sliding element 302 under the action of an external force; without external force, the fourth sliding element 304 remains at the end portion of the third sliding element 302 (i.e., the narrowed position of the third sliding element 302 acts as a limit).

[0107] In some embodiments, the control element 303 includes a first control element (such as a control button) and a second control element (limiting rod). The first control element has a fourth sliding element 304 protruding from a through slot in the housing element 101, for reciprocating movement along the vertical direction of the housing element 101 under external force. The second control element is located on the side of the first control element and has at least one second locking element 305, for reciprocating movement following the vertical direction of the housing element 101 of the first control element.

[0108] Generally, the height of the second control component is greater than the height of the first control component.

[0109] In some embodiments, the side of the first control member away from the fourth sliding element 304 may be provided with a control protrusion or control groove for the user to control the first control member.

[0110] The fourth sliding element 304 is disposed at the rear end of the control element 303 (first control element).

[0111] The dimensions of the fourth sliding element 304 are matched with those of the third sliding element 302. Generally, the radial dimension (e.g., width) of the fourth sliding element 304 is not greater than the maximum width of the third sliding element 302, the radial dimension (e.g., width) of the fourth sliding element 304 is greater than the minimum width of the third sliding element 302, and the radial dimension (e.g., length) of the fourth sliding element 304 is less than the length of the third sliding element 302.

[0112] In some of these embodiments, the fourth sliding element 304 includes, but is not limited to, a positioning post.

[0113] The connection between the second locking element 305 and the first locking element 202 includes, but is not limited to, snap-fitting.

[0114] In some embodiments, there are multiple second locking elements 305. The multiple second locking elements 305 are spaced apart along the height direction of the control element 303 (second control member).

[0115] When the relationship between the locking unit 300 and the drawer unit 200 is one-to-many, the number of the second locking elements 305 is equal to the number of drawer units 200 corresponding to the locking unit 300.

[0116] In some of these embodiments, the second locking element 305 includes, but is not limited to, a limiting point, a limiting block, a limiting protrusion, etc.

[0117] Generally, the second locking element 306 is set through the second control element and the first control element in sequence.

[0118] In some of these embodiments, the second locking element 306 includes, but is not limited to, a locking through hole.

[0119] Furthermore, the locking unit 300 also includes a plurality of first guide elements 307. The plurality of first guide elements 307 are symmetrically disposed on both sides of the third sliding element 302, and are used to cooperate with the third sliding element 302 to elastically limit the fourth sliding element 304.

[0120] A plurality of first guide elements 307 are symmetrically arranged on the left and right sides of the third sliding element 302, that is, at least one first guide element 307 is arranged on each of the left and right sides of the third sliding element 302.

[0121] The first guide element 307 is disposed through the first fixed element 301 and is not connected to the third sliding element 302.

[0122] In some embodiments, the shape of the first guide element 307 matches the shape of the third sliding element 302. Specifically, the first guide element 307 includes a first curved segment, a second curved segment, and a third curved segment. The first curved segment is located on the side of the top end of the third sliding element 302, with its concave surface facing the third sliding element 302. The second curved segment is located on the side of the middle portion of the third sliding element 302 and connects to the first curved segment, with its convex surface facing the third sliding element 302. The third curved segment is located on the side of the bottom end of the third sliding element 302 and connects to the second curved segment, with its concave surface facing the third sliding element 302.

[0123] When the fourth sliding element 304 passes through the middle of the third sliding element 302, the structure (a curved structure) between the third sliding element 302 and the first guide element 307 can undergo a small amount of elastic deformation, so that the fourth sliding element 304 enters the other end of the third sliding element 302 from one end of the third sliding element 302.

[0124] In some of these embodiments, the first guide element 307 includes, but is not limited to, a guide groove, a guide channel, a deformation groove, etc.

[0125] Furthermore, the locking unit 300 also includes at least one first limiting element 308 and at least one second limiting element 309. The first limiting element 308 is disposed on the side of the housing unit 100; the second limiting element 309 is disposed on the side of the control element 303 and is limitedly connected to the corresponding first limiting element 308 to limit the range of motion of the control element 303.

[0126] Specifically, the first limiting element 308 is disposed on the side of the housing element 101 (between the housing and the side panel); the second limiting element 309 is disposed on the side of the second control element.

[0127] The connection methods between the first limiting element 308 and the housing element 101 include, but are not limited to, snap-fit, plug-in, and integral molding.

[0128] In some embodiments, there are multiple first limiting elements 308. The multiple first limiting elements 308 are spaced apart along the height direction of the housing element 101.

[0129] In addition, the first limiting element 308 is also used to make a detachable connection with the side plate of the housing element 101, for example, by fixing the side plate to the housing with bolts.

[0130] In some embodiments, the first limiting element 308 includes, but is not limited to, a point, a limiting block, a limiting protrusion, a limiting rod, etc.

[0131] The second limiting element 309 is set through the control element 303 (second control element).

[0132] The connection method between the second limiting element 309 and the first limiting element 308 includes, but is not limited to, plug-in connection.

[0133] The number of second limiting elements 309 matches the number of first limiting elements 308. Generally, the number of second limiting elements 309 is equal to the number of first limiting elements 308.

[0134] The dimensions of the second limiting element 309 are matched with the dimensions of the first limiting element 308. Generally, the width of the second limiting element 309 is not less than the width of the first limiting element 308, and the length of the second limiting element 309 is greater than the length of the first limiting element 308.

[0135] In some of these embodiments, the cross-section of the second limiting element 309 is oval, rounded rectangle, or the like.

[0136] In some of these embodiments, the second limiting element 309 includes, but is not limited to, a limiting groove, a guide groove, a plug-in groove, etc.

[0137] The usage method of this embodiment is as follows:

[0138] In the locked state, the second locking element 305 is locked to the first locking element 202, and the drawer element 201 cannot be operated.

[0139] When it is necessary to operate the drawer element 201, the control element 303 is moved upward, and the fourth sliding element 304 moves from the bottom end of the third sliding element 302 to the top end of the third sliding element 302. When the fourth sliding element 304 reaches the top end of the third sliding element 302, the second locking element 305 separates from the first locking element 202, and the drawer element 201 can be pushed and pulled.

[0140] When it is necessary to lock the drawer element 201, the control element 303 is moved downward, and the fourth sliding element 304 moves from the top of the third sliding element 302 to the bottom of the third sliding element 302. When the fourth sliding element 304 reaches the bottom of the third sliding element 302, the second locking element 305 locks with the first locking element 202, thus completing the locking of the drawer element 201.

[0141] In the locked state, the second locking element 306 is aligned with the first locking element 102, and the control element 303 can be locked by using the lock through the first locking element 102 and the second locking element 306.

[0142] The technical effects of this embodiment are as follows:

[0143] 1) The locking unit can be used to easily and conveniently lock and unlock the drawer unit, preventing the drawer unit from moving on its own without external force;

[0144] 2) The unique design of the third sliding element of the locking unit can provide flexible limit, making it easy for users to quickly perceive the status of the locking unit;

[0145] 3) Locks can be used to lock both the locking unit and the cabinet unit, achieving a secondary locking effect and preventing unauthorized personnel from pulling out the drawer unit at will.

[0146] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stackable toolbox, characterized in that, include: Box unit; At least one drawer unit, the drawer unit being movably connected to the cabinet unit, for reciprocating movement along the horizontal direction of the cabinet unit; At least one locking unit is movably connected to the housing unit and removably locked to the drawer unit, for reciprocating along the vertical direction of the housing unit to lock or unlock the drawer unit.

2. The stackable toolbox according to claim 1, characterized in that, The housing unit includes: Enclosure components; At least one first locking element is disposed on the side of the housing element for cooperating with the locking unit and locking the locking unit under the action of the locking device.

3. The stackable toolbox according to claim 2, characterized in that, The housing unit also includes: A plurality of first sliding elements are distributed inside the housing element and are slidably connected to the corresponding drawer unit, for the drawer unit to reciprocate along the horizontal direction of the housing element.

4. The stackable toolbox according to claim 2 or 3, characterized in that, The housing unit also includes: At least one latching element is disposed on the side of the housing element for removable connection with an external latching assembly; and / or Two handle elements are symmetrically arranged on both sides of the housing element and are rotatably connected to the housing element respectively.

5. The stackable toolbox according to claim 1, characterized in that, The drawer unit includes: A drawer element, which is slidably connected to the cabinet unit, is used for reciprocating movement along the horizontal direction of the cabinet unit; At least one first locking element is disposed on the side of the drawer element and is removably locked to the corresponding locking unit for restricting the movement of the drawer element when locked to the locking unit.

6. The stackable toolbox according to claim 5, characterized in that, The drawer unit also includes: Two second sliding elements are symmetrically arranged on both sides of the drawer element and are slidably connected to the cabinet unit respectively.

7. The stackable toolbox according to claim 1, characterized in that, The locking unit includes: A first fixing element is disposed on the side of the housing unit; A third sliding element is disposed on a corresponding first fixed element; A control element is movably connected to the housing unit and is used for reciprocating motion along the vertical direction of the housing unit; A fourth sliding element, which is slidably connected to the side of the control element and to the third sliding element; At least one second locking element is disposed on the side of the control element and is used to follow the control element in reciprocating motion along the vertical direction of the housing unit to lock or unlock the drawer unit; At least one second locking element is disposed on the side of the control element for cooperating with the housing unit and locking the control element under the action of the locking device.

8. The stackable toolbox according to claim 7, characterized in that, The locking unit further includes: A plurality of first guide elements are symmetrically arranged on both sides of the third sliding element, for cooperating with the third sliding element to elastically limit the fourth sliding element.

9. The stackable toolbox according to claim 7 or 8, characterized in that, The locking unit further includes: At least one first limiting element is disposed on the side of the housing unit; At least one second limiting element is disposed on the side of the control element and is limitedly connected to the corresponding first limiting element to restrict the range of motion of the control element.

10. The stackable toolbox according to claim 1, characterized in that, The locking unit and the drawer unit have a one-to-one relationship; or The locking unit and the drawer unit have a one-to-many relationship.

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