A portable machining toolbox

Abstract

This utility model discloses a portable machining toolbox, comprising a hinged upper body and a lower body. The lower body has a rotatable support rod on its side, the top of which is slidably connected to a slide rail at the bottom of the lower body via a connecting rod, forming a triangular support. A lockable U-shaped extension rod is nested within the support rod. The upper and lower bodies are double-locked by a lower buckle and an upper locking pin, and a handle locking shaft and a locking plate slot. The upper body has a perforated hanging plate and a detachable shelf on its inner side. The lower body includes a pull-out storage box and a divider with a cover. A telescopic pull rod is located at the end of the lower body, and the bottom wheel frame is equipped with casters and a rotatable support frame. This device features height adjustment through a support structure, double locking for safety, partitioned storage for improved retrieval efficiency, and combined with its mobile and upright functions, significantly enhancing portability and practicality. It is suitable for the flexible carrying and operation of machining tools.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment technology, specifically a portable machining toolbox. Background Technology

[0002] Toolboxes are specialized devices used in the machining field to store, protect, and carry various tools. Through their partitioned design, they can neatly store a wide variety of high-precision machining tools such as wrenches, milling cutters, gauges, and drills. This not only prevents tools from being damaged by collisions or moisture, extending their service life, but also allows users to quickly locate the tools they need, reducing search time and improving work efficiency. At the same time, their portability adapts to the needs of various work scenarios such as workshop turnover and outdoor maintenance, and can also reduce the safety hazards caused by tools being scattered. They facilitate standardized management, inventory, and maintenance, making them an important auxiliary device to ensure the efficient and safe operation of machining processes.

[0003] However, existing technologies still have significant shortcomings, such as:

[0004] In our actual operations, we found that traditional portable toolboxes are convenient to carry and move when empty or lightly loaded; however, once a large number of tools are stored inside, the increased weight makes them difficult to lift and move, causing considerable inconvenience. While existing wheeled tool cabinets can alleviate the weight-bearing problem, they are difficult to move flexibly during transport or in outdoor maintenance scenarios due to space constraints. Therefore, a toolbox that combines portability and load-bearing capacity is needed to adapt to diverse operational needs. Utility Model Content

[0005] The purpose of this invention is to provide a portable machining toolbox to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A portable machining toolbox includes an upper box and a lower box, which are hinged together. An upper locking pin is fixedly provided on the upper box, and a lower locking buckle is rotatably provided on the lower box. The lower locking buckle has a locking groove that matches the upper locking pin.

[0008] A wheel frame is fixedly installed on the lower housing, and movable wheels are rotatably installed on the wheel frame;

[0009] A pull rod is slidably provided at the end of the lower housing away from the wheel frame;

[0010] The lower housing is rotatably provided with several support rods, and several slide rails are fixedly provided below the lower housing. Connecting rods are rotatably provided on the support rods, and the other end of the connecting rods is slidably provided in the slide rails by bolts. A wing nut is sleeved on the bolts.

[0011] Preferably, a U-shaped extension rod is slidably disposed in the support rod located on the same side, and a wing screw for locking the U-shaped extension rod is rotatably disposed on the support rod.

[0012] Preferably, a perforated hanging plate is fixedly installed on the upper box, and a detachable shelf is installed on the perforated hanging plate.

[0013] Preferably, a storage box is slidably disposed on the lower box body, and a plurality of partitions are fixedly disposed in the lower box body, with a cover plate rotatably disposed on the partitions.

[0014] Preferably, an upper limit rod is rotatably mounted on the upper housing, and a lower limit rod is rotatably mounted on the lower housing, with the upper limit rod and the lower limit rod being hinged together.

[0015] Preferably, a support frame is rotatably mounted on the wheel frame.

[0016] Preferably, a handle is rotatably mounted on the lower housing, and a retaining shaft is fixedly mounted on the handle; a retaining plate is rotatably mounted on the upper housing, and the retaining plate has a groove that matches the retaining shaft.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The device uses a wheel frame at the bottom of the lower box and a movable wheel to work together with a pull-out and telescopic rod to make the toolbox easy to push and solve the problem of laborious handling of traditional toolboxes; the flip-up support frame on the wheel frame and the movable wheel form a triangular support, which can stably stand the box upright and prevent it from rolling and shifting when temporarily placed, thus improving the flexibility of movement and parking.

[0019] 2. The triangular support structure formed by the support rod, connecting rod, and slide rail can stably support the box in the unfolded state by locking it with a wing nut; the U-shaped extension rod nested inside the support rod can be adjusted and fixed in length by the wing screw to adapt to different working height requirements, meet diverse usage scenarios, and improve operating comfort. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the overall device of this utility model in its unfolded state;

[0021] Figure 2 This is a three-dimensional structural diagram of the overall structure of this utility model in its stored state;

[0022] Figure 3 for Figure 2 Enlarged view of point A;

[0023] Figure 4 This is a three-dimensional structural diagram of the overall structure of this utility model in its stored state from another perspective;

[0024] Figure 5 This is a three-dimensional structural diagram of the present invention in its unfolded state from another perspective;

[0025] Figure 6 for Figure 5 Enlarged view at point B in the middle;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the card plate of this utility model.

[0027] In the diagram: 1. Upper box; 2. Lower box; 3. Upper latch; 4. Lower buckle; 5. Locking slot; 6. Wheel frame; 7. Casters; 8. Pull rod; 9. Support rod; 10. Slide rail; 11. Connecting rod; 12. Bolt; 13. Wing nut; 14. U-shaped extension rod; 15. Wing screw; 16. Perforated hanging plate; 17. Shelf; 18. Storage box; 19. Divider; 20. Cover plate; 21. Upper limit rod; 22. Lower limit rod; 23. Support frame; 24. Handle; 25. Locking shaft; 26. Locking plate; 27. Locking slot. Detailed Implementation

[0028] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-7 This utility model provides a technical solution:

[0030] The main body of this toolbox consists of an upper box 1 and a lower box 2, which are rotatably connected by a hinge on the side. One end of the hinge is fixed to the side edge of the upper box 1, and the other end is fixed to the side edge of the lower box 2, allowing the upper box 1 to rotate relative to the lower box 2 around the hinge axis, thereby switching between two states: unfolded for operation and folded up for storage.

[0031] The bottom of the support rod 9 is connected to the side of the lower housing 2 via a revolute joint, allowing it to rotate outwards around the connection point. The top of the support rod 9 is also connected to one end of the connecting rod 11 via a revolute joint, forming a movable support arm. A bolt 12 is fixedly welded to the other end of the connecting rod 11. The bolt 12 engages with a slide rail 10 at the bottom of the lower housing 2, allowing it to slide along the elongated hole in the slide rail 10. When the support rod 9 rotates outwards, the connecting rod 11 moves accordingly, and the bolt 12 slides within the slide rail 10, naturally forming a triangular structure between the support rod 9, the connecting rod 11, and the lower housing 2. This triangular stability provides support to the housing.

[0032] A wing nut 13 is fitted onto the bolt 12 at the end of the connecting rod 11. After the support angle is adjusted to the correct position, the wing nut 13 is tightened. The thread locking force between the nut and the bolt 12 restricts the sliding of the bolt 12 within the slide rail 10, thereby locking the positions of the support rod 9 and the connecting rod 11 and maintaining the stability of the support structure.

[0033] The support rod 9 has a hollow structure, inside which a U-shaped extension rod 14 is nested. The U-shaped extension rod 14 can slide along the axial direction of the cavity of the support rod 9 to adjust the support height. A wing screw 15 is provided on the side wall of the support rod 9. The wing screw 15 is threadedly connected to the support rod 9. After the U-shaped extension rod 14 is adjusted to the required length, the wing screw 15 is tightened, so that its end presses against the U-shaped extension rod 14. Through friction, the U-shaped extension rod 14 is locked in the current position, thereby fixing the support height.

[0034] The lower latch 4 is mounted on the top surface of the lower housing 2 via a rotating shaft and can rotate around the shaft. A locking groove 5 is formed on the surface of the lower latch 4, and an upper locking pin 3 is fixed to the side wall of the upper housing 1. The shape of the locking groove 5 matches the upper locking pin 3. When the housing needs to be closed and locked, the lower latch 4 is flipped, causing the upper locking pin 3 to engage in the locking groove 5, thus restricting the relative rotation between the upper housing 1 and the lower housing 2 through the locking action. When the housing needs to be unfolded, the lower latch 4 is flipped in the opposite direction, causing the upper locking pin 3 to disengage from the locking groove 5, allowing the upper housing 1 to rotate and unfold around the hinge shaft.

[0035] A perforated hanging plate 16 is fixed to the inner wall of the upper housing 1, and the surface of the perforated hanging plate 16 has multiple mounting holes. The shelf 17 engages with the mounting holes via pins or hooks, and can be detached or installed on the perforated hanging plate 16 as needed for placing small tools for easy access.

[0036] The lower housing 2 has a drawer-type slot inside, into which the storage box 18 is embedded and can slide horizontally. It can be pulled out when tools are needed and pushed back into place after use. A divider 19 is also fixed inside the lower housing 2, dividing the interior space into multiple areas. A cover 20 is connected to the divider 19 via a hinge. The cover 20 can be flipped around the hinge, allowing easy access to tools in the corresponding area when opened, and sealing the area when closed to prevent tools from falling out or getting mixed up.

[0037] One end of the upper limit rod 21 is connected to the inner side of the upper box 1 via a revolute joint, and one end of the lower limit rod 22 is connected to the inner side of the lower box 2 via a revolute joint. The other end of the upper limit rod 21 and the other end of the lower limit rod 22 are connected via a hinge shaft. When the box is unfolded, the upper limit rod 21 and the lower limit rod 22 rotate with the upper box 1 as it flips, until the two rods straighten and form a support. The rigidity of the rods limits the upper box 1 from continuing to flip, thereby maintaining the tilting unfolding angle of the upper box 1 and ensuring stability during operation.

[0038] The handle 24 is connected to the side of the lower housing 2 via a rotating shaft and can be folded around the shaft. A retaining pin 25 is fixed to the end of the handle 24, and the retaining pin 25 remains relatively fixed to the handle 24. A retaining plate 26 is mounted on the side of the upper housing 1 via a rotating shaft and can be flipped around the shaft. Its surface has a retaining groove 27, the shape of which matches the retaining pin 25. When the housing is closed, flipping the handle 24 aligns the retaining pin 25 with the retaining groove 27 on the retaining plate 26, and it engages. The engagement of the retaining pin 25 and the retaining groove 27 forms a secondary lock, further enhancing the closure stability of the upper housing 1 and the lower housing 2, and preventing accidental opening of the housing due to vibration during transportation.

[0039] The pull rod 8 is located at the end of the lower housing 2 away from the wheel frame 6, and cooperates with the telescopic slide 10 inside the lower housing 2, allowing it to be pulled out and extended along the slide 10. The telescopic slide 10 has a built-in spring or buckle structure. When the pull rod 8 is pulled out to the required length, the spring or buckle will automatically lock, preventing the pull rod 8 from retracting. To retract it, press the buckle or overcome the spring force to push the pull rod 8 back into the slide 10 (this is a mature existing technology and will not be described in detail).

[0040] The wheel frame 6 is fixed to the bottom of the lower box 2, and the movable wheel 7 is connected to the wheel frame 6 through the wheel axle, allowing it to rotate freely around the wheel axle. When it is necessary to move the box, pull out the lever 8, apply force through the lever 8 to push the box, and the movable wheel 7 rolls with the pushing force, realizing the convenient pushing of the box.

[0041] The support frame 23 is connected to the side of the wheel frame 6 via a rotating shaft and can rotate around the shaft. When the box is in the storage state and needs to be temporarily placed, the support frame 23 is rotated from the position of being attached to the wheel frame 6 to being perpendicular to the wheel frame 6. At this time, the bottom of the support frame 23 contacts the ground, and the box can be placed upright, avoiding the box from rolling due to external force when relying solely on the moving wheels 7 for support, thus ensuring the stability of temporary placement.

[0042] Working principle: During use, when unfolding the work, first flip the support rod 9 on the side of the lower box 2 outwards. The connecting rod 11 connected to its top moves along with it. The end bolt 12 slides along the slide rail 10 at the bottom of the lower box 2, so that the support rod 9, the connecting rod 11 and the lower box 2 naturally form a triangular support structure. After adjusting to a suitable angle, tighten the wing nut 13 to lock it. If it is necessary to increase the height, the U-shaped extension rod 14 can slide out along the cavity of the support rod 9 and then be fixed with the wing screw 15 on the side wall. Then flip the lower buckle 4 so that the upper buckle 3 disengages from the locking groove 5. The upper box 1 unfolds around the hinge axis and is supported by the upper and lower limit rods 22 to maintain the tilt angle. At this time, the perforated hanging plate 16 on the inside of the upper box 1 can be used to install the shelf 17, the storage box 18 of the lower box 2 can be pulled out, and the cover plate 20 on the partition plate 19 can be flipped to facilitate the use of various tools. When storing or moving, push the upper box 1 to fit against the lower box 2, flip the lower buckle 4 to let the upper locking pin 3 engage with the locking groove 5, and then the locking shaft 25 at the end of the handle 24 forms a secondary lock with the locking groove 27 of the upper box 1's locking plate 26, thus restricting the sliding of the storage box 18; pull out the pull rod 8 at the end of the lower box 2, and it can be pushed by using the moving wheels 7 on the bottom wheel frame 6. When temporarily placing, flip the support frame 23 on the side of the wheel frame 6 so that it is perpendicular to the wheel frame 6, so that the box can be placed stably upright.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable mechanical working tool box comprising an upper box (1) and a lower box (2), the upper box (1) being hinged to the lower box (2), characterized in that: The upper box (1) is fixedly provided with an upper latch (3), and the lower box (2) is rotatably provided with a lower latch (4). The lower latch (4) is provided with a latching groove (5) that matches the upper latch (3). A wheel frame (6) is fixedly installed on the lower housing (2), and a movable wheel (7) is rotatably installed on the wheel frame (6). A pull rod (8) is slidably provided at the end of the lower housing (2) away from the wheel frame (6); The lower housing (2) is rotatably provided with several support rods (9), and several slides (10) are fixedly provided below the lower housing (2). A connecting rod (11) is rotatably provided on the support rod (9). The other end of the connecting rod (11) is slidably provided in the slide (10) by a bolt (12). A wing nut (13) is sleeved on the bolt (12).

2. A portable machine tool kit according to claim 1, wherein: A U-shaped extension rod (14) is slidably disposed in the support rod (9) located on the same side, and a butterfly screw (15) for locking the U-shaped extension rod (14) is rotatably disposed on the support rod (9).

3. A portable machine tool kit according to claim 2, wherein: A perforated hanging plate (16) is fixedly installed on the upper box (1), and a detachable shelf (17) is installed on the perforated hanging plate (16).

4. A portable machine tool kit according to claim 3, wherein: A storage box (18) is slidably disposed on the lower box (2), and several partition plates (19) are fixedly disposed in the lower box (2). A cover plate (20) is rotatably disposed on the partition plate (19).

5. The portable machine tool kit of claim 1, wherein: The upper housing (1) is rotatably provided with an upper limit rod (21), and the lower housing (2) is rotatably provided with a lower limit rod (22). The upper limit rod (21) and the lower limit rod (22) are hinged together.

6. The portable machine tool kit of claim 1, wherein: A support frame (23) is rotatably mounted on the wheel frame (6).

7. A portable machine tool kit as claimed in claim 2, wherein: The lower housing (2) is rotatably provided with a handle (24), and a locking shaft (25) is fixedly provided on the handle (24). The upper housing (1) is rotatably provided with a locking plate (26), and a locking groove (27) matching the locking shaft (25) is provided on the locking plate (26).

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