Collapsible, stackable trolley tool box

Abstract

The application discloses a telescopic and stackable pull rod tool box, which comprises a first tool box, a first box cover of the first tool box covers a first box body and forms a first containing space, a top of the first box cover is provided with a first limiting groove, at least one set of convex seats are oppositely arranged on a periphery of the first limiting groove, and a positioning plate is slidably arranged on each convex seat; a second tool box can be telescopically arranged in the first containing space or can be detachably stacked on the first box cover, and the second tool box is provided with a first clamping groove; when the second tool box is stacked, a bottom of the second tool box is arranged in the first limiting groove, the positioning plates correspond to the first clamping groove one by one, when the positioning plates slide towards the second tool box, one end of the positioning plate can be clamped into the first clamping groove, so that the first limiting groove preliminarily positions the bottom of the second tool box, then the oppositely arranged positioning plates are slid and clamped into the first clamping groove respectively, so that the two tool boxes are stably stacked; the second tool box can also be telescopically arranged in the first containing space, so that carrying and carrying are more convenient.

Description

Technical Field

[0001] This application relates to the field of toolbox technology, specifically to a retractable and stackable lever toolbox. Background Technology

[0002] Toolboxes are mainly used to store various tools, and multiple toolboxes are usually stored or transported by stacking. To secure the stacked toolboxes, most solutions rely on the cooperation of components such as clips and slots to limit the relative displacement of the toolboxes. However, the effective fixation of such structures in existing technologies often requires that the bottom edges of the upper and lower toolboxes be the same or similar in size. If the size difference is large, the locking components cannot be precisely engaged, which can easily lead to the stack becoming loose.

[0003] For example, Chinese utility model patent CN216030715U discloses a push-pull stackable toolbox, in which the bottom box and the top box are connected by a snap-fit ​​mechanism. The snap-fit ​​mechanism is hinged to two sides of the bottom and top boxes. Rotating the snap-fit ​​mechanism engages the base of the top box, thus connecting the two boxes. This solution is limited by the structural design of the snap-fit ​​mechanism, which requires the bottom dimensions of the stacked bottom box and the top box to be strictly matched. If the bottom of the top box is smaller than the internal space of the bottom box, the snap-fit ​​mechanism will not be able to effectively engage the base of the top box. When multiple boxes are not needed for joint use, and the top box is separated from the bottom box, it cannot be directly stored inside the bottom box. In this case, the unused top box must either remain stacked or be stored separately, which takes up space and prevents the overall volume from being flexibly reduced according to the number of tools, increasing the burden of carrying it. Utility Model Content

[0004] Therefore, this application provides a retractable and stackable lever toolbox to solve the technical problem in the prior art where multiple toolboxes are only stacked and fixed, but cannot meet the needs of retraction after disassembly.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A retractable and stackable lever toolbox includes a first toolbox, which includes a first box body and a first box cover. The first box cover closes onto the first box body to form a closed first receiving space. A first limiting groove is provided on the top of the first box cover. At least one set of protrusions are provided around the periphery of the first limiting groove. Positioning plates are slidably provided on the protrusions.

[0007] The second toolbox can be stored in the first accommodating space or can be detachably stacked on the first lid. The second toolbox is provided with a first slot. When the second toolbox is stacked on the first lid, the bottom of the second toolbox is placed in the first limiting groove, and the positioning plate slides toward the second toolbox and one end of the positioning plate is engaged in the first slot.

[0008] Optionally, the positioning plate includes a main body, a mounting part, and a first snap-fit ​​part. The mounting part is located below the main body, and the first snap-fit ​​part is located at one end of the main body near the second toolbox. A gap is reserved between the first snap-fit ​​part and the mounting part. The protruding seat is provided with a transversely penetrating mounting groove. The mounting part and the mounting groove are slidably snap-fitted together. When the mounting part slides towards the first slot, the first snap-fit ​​part snaps into the first slot.

[0009] Optionally, the positioning plate further includes a second snap-fit ​​portion, which is disposed below the mounting portion. A second slot is provided below the mounting groove, and the second snap-fit ​​portion is snap-fitted into the second slot.

[0010] Optionally, the mounting part is provided with a first sliding groove that is adapted to be installed in the mounting slot and is transversely connected. The lower side of the first snap-fit ​​part is lower than the upper side of the first sliding groove so as to block the end of the first sliding groove near the second toolbox.

[0011] Alternatively, a notch may be provided on the upper surface of the main body.

[0012] Optionally, two locking fasteners are disposed opposite each other on both sides of the first box body, and the locking fasteners can be engaged with the first box cover.

[0013] Optionally, the first housing includes a roller assembly and a telescopic rod. The roller assembly is disposed at one end of the lower side of the first housing and is rotatably connected to the first housing. The opening of the first housing is provided with a receiving cavity extending along the rolling direction of the roller assembly. The telescopic end of the telescopic rod is housed in the receiving cavity, and the handle end of the telescopic rod is disposed above the end of the first housing away from the roller assembly.

[0014] Compared with the prior art, this application has at least the following beneficial effects:

[0015] This application discloses a retractable and stackable lever toolbox, comprising a first toolbox and a second toolbox. The second toolbox can be stored inside the first toolbox or detached and stacked on top of the first toolbox. When the second toolbox is stacked on the first lid, its bottom is positioned within a first limiting groove. At least one set of positioning plates, arranged opposite to each other around the first limiting groove, slide towards the second toolbox. One end of each positioning plate can engage with a first slot, thereby securing the second toolbox to the first toolbox. Thus, if multiple toolboxes are needed for collaborative operation, the second toolbox can be removed from the first accommodating space and stacked on the first lid. The first limiting groove initially positions the bottom of the second toolbox, and then the opposing positioning plates slide into the first slots of the second toolbox, ensuring stable stacking of the two toolboxes. If the number of tools is reduced or portability is required, the second toolbox can be detached from the first lid and stored within the first accommodating space. The overall volume is controllable, reducing the burden of handling and carrying. Attached Figure Description

[0016] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0017] Figure 1 A schematic diagram of a retractable and stackable trolley toolbox provided in an embodiment of this application;

[0018] Figure 2 A partial exploded view of a retractable and stackable trolley toolbox provided in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the positioning plate provided in the embodiments of this application;

[0020] Figure 4 Examples of this application Figure 2 Enlarged view of part A in the image;

[0021] Figure 5 Examples of this application Figure 1 sectional view of aa;

[0022] Figure 6 Examples of this application Figure 5 Enlarged view of part B in the image.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. First toolbox; 2. Second toolbox; 21. First slot; 22. Groove; 3. First box body; 4. First box cover; 41. First limiting groove; 5. Protrusion seat; 51. Mounting groove; 52. Second slot; 521. Near groove; 522. Far groove; 53. Second sliding groove; 54. Second slider; 6. Positioning plate; 61. Main body; 62. Mounting part; 63. First snap-fit ​​part; 631. First protrusion; 64. Second snap-fit ​​part; 65. First sliding groove; 66. Gap; 67. First slider; 68. U-shaped through hole; 7. Locking fastener; 8. Roller assembly; 9. Telescopic rod. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] refer to Figure 1-6 As shown, this embodiment provides a retractable and stackable lever toolbox, including a first toolbox 1 and a second toolbox 2. The first toolbox 1 includes a first box body 3 and a first box lid 4. The first box lid 4 closes onto the opening of the first box body 3, forming a closed first receiving space. A first limiting groove 41 is provided on the top of the first box lid 4, and at least one set of protrusions 5 are provided opposite to each other around the periphery of the first limiting groove 41. Positioning plates 6 are slidably provided on the protrusions 5. In this embodiment, one set of protrusions 5 is used for description, with two protrusions 5 located on the left and right edges of the first limiting groove 41, respectively.

[0027] The second toolbox 2 can be stored in the first receiving space or stacked on the first lid 4. The second toolbox 2 includes a second box body and a second lid, with the second lid closing onto the second box body. A first slot 21 corresponding to the positioning plate 6 is provided on the lower side of the second box body, and two first slots 21 are provided on the left and right sides of the second box body.

[0028] When the second toolbox 2 is stacked on the first lid 4, the bottom of the second toolbox is placed in the first limiting groove 41. Preferably, the shape of the first limiting groove 41 is adapted to the shape of the bottom of the second toolbox, and the positioning plate 6 on the protrusion 5 corresponds one-to-one with the first slot 21. When the positioning plate 6 is pushed and slids towards the second toolbox 2, one end of the positioning plate 6 can be inserted into the first slot 21, thereby making the second toolbox 2 firmly stacked on the first toolbox 1. When one end of the positioning plate 6 is inserted into the first slot 21, the positioning plate 6 is pulled away from the second toolbox 2, and one end of the positioning plate 6 is dislodged from the first slot 21. At this time, the second toolbox 2 can be separated from the first toolbox 1.

[0029] In this embodiment, if multiple toolboxes are needed, the second toolbox 2 can be removed from the first accommodating space and stacked on the first lid 4. The first limiting groove 41 first positions the bottom of the second toolbox 2, and then the positioning plates 6 are slidably inserted into the first slots 21 of the second toolbox 2 to ensure stable stacking of the two toolboxes. Since a set of positioning plates 6 slide relative to the second toolbox 2, even if there is a large size difference between the first toolbox 1 and the second toolbox 2, the positioning plates 6 can connect the first toolbox 1 and the second toolbox 2, preventing the stack from becoming loose. If the number of tools is reduced or portability is required, the second toolbox 2 can be detached from the first lid 4 and placed directly into the first accommodating space of the first toolbox 1 without separate storage. After being folded up, the second toolbox 2 only occupies the volume of the first toolbox 1, avoiding the situation where idle boxes occupy space. The overall volume is controllable, reducing the burden of handling and carrying. The toolbox of this application, through its dual mode of being foldable up and stably stacked, makes the application scenarios more flexible.

[0030] In one embodiment, the positioning plate 6 has a certain degree of elasticity, such as being made of plastic or rubber. The positioning plate 6 includes a main body 61, a mounting part 62, and a first snap-fit ​​part 63. The mounting part 62 is located below the main body 61, and the first snap-fit ​​part 63 is located at one end of the main body 61 near the second toolbox 2. A pre-reserved gap is left between the first snap-fit ​​part 63 and the mounting part 62. The protrusion 5 is provided with a transversely penetrating mounting groove 51, that is, the mounting groove 51 is opened from the side of the protrusion 5 away from the first limiting groove 41 until it communicates with the first limiting groove 41. The mounting part 62 and the mounting groove 51 can be slidably snapped together. When the mounting part 62 slides towards the first slot 21, the first engaging part 63 can engage in the first slot 21. Specifically, the first engaging part 63 is also located below the main body 61, that is, it extends downward from the end of the main body 61 near the second toolbox 2. The bottom side of the first engaging part 63 is provided with a first protrusion 631, and the first slot 21 is provided with a groove 22 to accommodate the first protrusion 631. The first protrusion 631 engages with the groove 22, thereby enabling the first engaging part 63 to engage in the first slot 21.

[0031] The positioning plate 6 also includes a second engaging portion 64, which is a downwardly protruding second protrusion located below the mounting portion 62. The second protrusion is elastic. The bottom surface of the mounting groove 51 is provided with a second slot 52, and the second engaging portion 64 is engaged within the second slot 52. The second slot 52 has an upwardly protruding ramp in the middle, which divides the second slot 52 into left and right slots. Here, the slot closer to the second toolbox 2 is defined as the near slot 521, and the other is defined as the far slot 522. When the first protrusion 631 engages with the groove 22, the second protrusion engages in the near slot 521, further limiting the left and right movement of the mounting portion 62. When the first protrusion 631 exits the groove 22, the second protrusion engages in the far slot 522 to prevent the mounting portion 62 from continuing to move away from the second toolbox 2.

[0032] The mounting slot 51 includes a second sliding groove 53 located at the bottom. The upper edge of the second sliding groove 53 forms a second slider 54. The mounting part 62 is provided with a first sliding groove 65 that is adapted to be installed with the second slider 54 and is transversely connected. The lower edge of the first sliding groove 65 forms a first slider 67 that is adapted to be installed with the second sliding groove 53. The bottom side of the first locking part 63 is lower than the upper side of the first sliding groove 65 to block the end of the first sliding groove 65 near the second toolbox 2, thereby limiting the installation direction of the positioning plate 6. That is, when the positioning plate 6 is installed, it can only be installed from the end closest to the second toolbox 2. One end of the limiting groove 41 is inserted into the mounting groove 51. Specifically, when installing the positioning plate 6, the end of the first sliding groove 65 away from the first snap-fit ​​part 63 is aligned with the second slider 54, and the end of the first slider 67 is aligned with the second sliding groove 53. The positioning plate 6 is gradually pushed into the mounting groove 51. The second protrusion first snaps into the near groove 521, and then the positioning plate 6 is pushed until the second protrusion snaps into the far groove 522. The positioning plate 6 is completely placed in the mounting groove 51. At this time, the positioning plate 6 will not extend into the first limiting groove 41 and will not affect the placement of the first toolbox 1 into the first limiting groove 41.

[0033] The main body 61 is also provided with a groove 66, in which fingers can be placed to facilitate pushing and pulling operations on the positioning plate 6. Preferably, a U-shaped through hole 68 is provided in the groove 66, and a connecting plate with a movable end is formed in the middle of the U-shaped through hole 68. A second protrusion is provided below the movable end of the connecting plate, so that the second protrusion has a certain elasticity.

[0034] In one embodiment, the first housing 3 includes a locking element 7, with two locking elements 7 disposed opposite to each other on both sides of the first housing 3. The locking elements 7 can engage with the first housing cover 4, thereby locking the first housing 3 and the first housing cover 4 together.

[0035] The first housing 3 also includes a roller assembly 8 and a telescopic rod 9. The roller assembly 8 is located at one end of the lower side of the first housing 3 and is rotatably connected to the first housing 3. A receiving cavity is provided around the opening of the first housing 3. The telescopic end of the telescopic rod 9 is housed in the receiving cavity. The handle end of the telescopic rod 9 is located above the lower side of the first housing 3 away from the roller assembly 8. For example, the roller assembly 8 is located below the right side of the first housing 3. The receiving cavity is located on the front and rear sides of the opening of the first housing 3 in the left-right direction. The handle end of the telescopic rod 9 is located above the left side of the first housing 3. The left side of the first housing 3 is lifted off the ground by the telescopic rod 9, causing the roller assembly 8 to roll, thereby facilitating the movement of the lever toolbox.

[0036] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A retractable and stackable trolley toolbox, characterized in that, include: The first toolbox (1) includes a first box body (3) and a first box cover (4). The first box cover (4) covers the first box body (3) and forms a closed first accommodating space. A first limiting groove (41) is provided on the top of the first box cover (4). At least one set of protrusions (5) are provided around the periphery of the first limiting groove (41). Positioning plates (6) are slidably provided on the protrusions (5). The second toolbox (2) can be stored in the first accommodating space or can be detachably stacked on the first box cover (4). The second toolbox (2) is provided with a first slot (21). When the second toolbox (2) is stacked on the first box cover (4), the bottom of the second toolbox (2) is placed in the first limiting groove (41), and the positioning plate (6) slides towards the second toolbox (2) and one end of the positioning plate (6) is inserted into the first slot (21).

2. The collapsible and stackable trolley toolbox according to claim 1, characterized in that, The positioning plate (6) includes a main body (61), a mounting part (62), and a first snap-fit ​​part (63). The mounting part (62) is located below the main body (61), and the first snap-fit ​​part (63) is located at one end of the main body (61) near the second toolbox (2). A gap is reserved between the first snap-fit ​​part (63) and the mounting part (62). The protruding seat (5) is provided with a horizontally penetrating mounting groove (51). The mounting part (62) and the mounting groove (51) are slidably snapped together. When the mounting part (62) slides toward the first slot (21), the first snap-fit ​​part (63) snaps into the first slot (21).

3. A retractable and stackable trolley toolbox according to claim 2, characterized in that, The positioning plate (6) further includes a second snap-fit ​​part (64), which is disposed below the mounting part (62). A second slot (52) is provided below the mounting groove (51), and the second snap-fit ​​part (64) is snap-fitted into the second slot (52).

4. A retractable and stackable trolley toolbox according to claim 2, characterized in that, The mounting part (62) is provided with a first sliding groove (65) that is adapted to be installed in the mounting groove (51) and is transversely connected. The lower side of the first snap-fit ​​part (63) is lower than the upper side of the first sliding groove (65) to block the end of the first sliding groove (65) near the second toolbox (2).

5. A retractable and stackable trolley toolbox according to claim 2, characterized in that, The main body (61) has a groove (66) on its upper surface.

6. A retractable and stackable trolley toolbox according to claim 1, characterized in that, The first box body (3) includes a locking element (7), and two locking elements (7) are disposed opposite to each other on both sides of the first box body (3). The locking elements (7) can be engaged with the first box cover (4).

7. A retractable and stackable trolley toolbox according to claim 1, characterized in that, The first housing (3) includes a roller assembly (8) and a telescopic rod (9). The roller assembly (8) is located at one end of the lower side of the first housing (3). The roller assembly (8) is rotatably connected to the first housing (3). A receiving cavity extending along the rolling direction of the roller assembly (8) is provided around the opening of the first housing (3). The telescopic end of the telescopic rod (9) is housed in the receiving cavity. The handle end of the telescopic rod (9) is located above the end of the first housing (3) away from the roller assembly (8).

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