A new tool box
By using a through-mounting groove and protrusion connection, along with an independent hinge design, the problems of difficult toolbox demolding and low connection durability are solved, resulting in more efficient production and a neater storage effect.
Patent Information
- Application Number
- CN202522677776.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-17
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-17
AI Technical Summary
The existing toolbox suffers from severe mold wear during demolding, has low durability in its connection method, and is not neat enough for storage.
The inner liner and outer shell are connected by a through mounting groove and a protrusion. The outer shell and inner liner are connected by a dovetail groove design and by an independent connecting part. The inner liner has a circular magnet receiving groove and a straight-lined rod-shaped tool groove.
It reduces the complexity of molds and production costs, increases the success rate of demolding, simplifies the connection process, and enhances the durability and neatness of the toolbox.
Smart Images

Figure CN224927946U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of toolbox design technology, and in particular to a novel toolbox. Background Technology
[0002] Tool boxes, as common storage devices, are widely used in industrial maintenance, household use, and professional work scenarios to categorize and store various hand tools, small parts, and other items. A typical tool box usually consists of an outer shell and an internal tray or liner. The outer shell provides protection and overall support, while the liner is used for tool placement and organization. The production efficiency and user experience of a tool box largely depend on the rationality of its structural design, especially the feasibility of the outer shell's manufacturing process and the overall neatness of the storage.
[0003] In existing technologies, the toolbox outer shell and inner liner are usually connected by interlocking slots. Traditional slot designs often involve a recessed structure on the inner surface of the outer shell. This recess is typically located on the side wall of the outer shell, with its concave contour extending inwards along the side wall thickness to form a localized concave surface. Because the direction of this concave structure is perpendicular to the demolding direction of the injection mold, the mold core needs to be laterally removed from the recess after molding. This results in the demolding process being restricted by the recess wall, making smooth exit difficult, significantly increasing demolding resistance, and easily causing mold wear, product damage, or demolding failure.
[0004] On the other hand, for connecting the upper and lower shells of the toolbox, a common method is to fix a long shaft to the side of one shell, which penetrates to the other shell for rotational connection; another method is to use a long shaft that passes through the overlapping part of the side walls of both shells. Both methods rely on the long shaft as the hinge core. Regardless of the connection method, the connecting hole to accommodate the rotating shaft needs to be set in the shell, and it needs to be integrally injection molded with the shell during production. Because the structure of the connecting hole is thin and long, excessive demolding resistance will occur during demolding, and the mold will be easily damaged. In addition, since the connection between the upper and lower shells requires the connecting shaft to be precisely inserted into the connecting hole, the assembly difficulty increases, the working time increases, and the installation is not simple.
[0005] In terms of internal storage design, traditional toolboxes focus on basic functions in terms of appearance and storage design, but do not give enough consideration to the overall neatness of the arrangement.
[0006] In conclusion, there is still room for improvement in the structural design and manufacturing process of existing toolboxes, particularly in how to simplify the connection structure between the outer shell and the inner liner to optimize the mold process, how to improve the connection method between the upper and lower shells to enhance durability, and how to improve the overall neatness of the appearance and the convenience of storage. Utility Model Content
[0007] This utility model proposes a novel toolbox to solve the problems mentioned in the background art, such as the difficulty in demolding existing toolbox structures, the low durability of connection methods, and the lack of neatness in tool storage.
[0008] The technical solution of this utility model is implemented as follows: A new type of toolbox includes: The outer shell is a shell structure with one end open, and the interior of the outer shell is provided with several mounting slots; The inner liner is installed inside the outer shell and has protrusions that correspond to the mounting groove. The protrusions are slidably installed in the mounting groove. The mounting groove is arranged with its length direction facing the open end of the outer shell and is continuous, so that the mounting groove remains open near the open end of the outer shell.
[0009] By adopting the above technical solution, the connection between the outer shell and the inner liner can be achieved by sliding the protrusion of the inner liner in the mounting groove. This ensures that the inner liner is subjected to balanced force during sliding installation, avoiding deformation or damage caused by local stress concentration, and has the advantage of simple installation. Furthermore, since the mounting groove is kept open near the open end of the outer shell, the mold opening difficulty is low, demolding is easy, and the requirements for the mold are correspondingly reduced, which has the advantages of reducing the difficulty and cost of mold opening.
[0010] Preferably, the mounting groove is disposed on the inner wall of the outer shell, and the protrusion is disposed on the outer wall of the inner liner.
[0011] By adopting the above technical solution, after the inner liner is installed inside the outer shell, the mounting groove and protrusion can be hidden inside the outer shell. The number and position of the mounting groove and protrusion are evenly distributed on the inner wall of the outer shell and the outer wall of the inner liner, so the overall force is even and the problem of the inner liner tilting to one side will not occur.
[0012] Preferably, the mounting groove is a dovetail groove.
[0013] By adopting the above technical solution, the dovetail shape increases the contact area between the protrusion and the mounting groove, thereby increasing the friction and preventing the inner liner and outer shell from easily separating after they are connected.
[0014] Preferably, there are two outer shells, namely a first outer shell and a second outer shell. The first outer shell and the second outer shell are rotatably connected to form an overall closed box structure when closed.
[0015] Preferably, the outer side of the first housing is integrally connected with a first connecting part, and the outer side of the second housing is provided with a plurality of second connecting parts corresponding to the first connecting part.
[0016] Preferably, the first connecting part is formed with a hinge groove, and the second connecting part is provided with a connecting rod corresponding to the hinge groove, wherein the connecting rod is disposed in the hinge groove.
[0017] By adopting the above technical solution, the first and second shells are hinged together by independent connecting parts, without the need for other parts to assist in rotation. The connection method is simpler and the assembly is faster. In terms of production process, compared with the traditional process, the contact area between the mold and the shell is reduced during demolding, and the force application method is also more scientific, which greatly improves the success rate of demolding.
[0018] Preferably, after the first and second outer shells are rotated and closed, the closed state is locked by a flip-top locking structure.
[0019] By adopting the above technical solution, the box can be completely closed, which has the advantage of protecting the tools inside the object from falling out, and the tool box can be easily carried.
[0020] Preferably, a circular magnet receiving groove is provided on the inner side of the inner liner.
[0021] By adopting the above technical solution, compared with the square magnet receiving slots commonly used in the prior art, the advantage of the round magnet receiving slot is that it is easier to find a replacement magnet when the magnet in the tool box is lost or the magnetic force is insufficient. Round magnets are more common in the market and there are more size options.
[0022] Preferably, the inner side of the inner liner is provided with rod-shaped tool receiving grooves arranged in a straight line.
[0023] By adopting the above technical solutions, we can achieve neater tool storage and present an aesthetically pleasing result.
[0024] By adopting the above technical solution, the beneficial effects of this utility model are as follows: This invention effectively reduces the complexity of injection molds and production costs by connecting the inner liner and outer shell using a mounting groove and protrusion that runs through the side wall. The first and second outer shells are directly hinged together via independent connecting parts, simplifying the structure and improving the durability of rotating parts. Meanwhile, the optimized magnet housing structure further enhances ease of use and component replaceability. In summary, this invention represents a significant improvement in manufacturing process, connection reliability, aesthetic appearance, and ease of use. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of the overall appearance of the present utility model; Figure 2 This is an exploded view of the installation structure of this utility model; Figure 3 This is a schematic diagram of the outer shell structure of this utility model; Figure 4 This is a schematic diagram showing partial details of the present invention; Figure 5 This is a schematic diagram showing partial details of the present invention; Figure 6 This is a schematic diagram of the inner liner structure of this utility model; Figure 7 This is a schematic diagram of another inner liner structure of this utility model. in: 1. First outer shell; 101. First connecting part; 102. Hinge groove; 2. Second outer shell; 201. Second connecting part; 202. Connecting rod; 3. Mounting groove; 4. Flip cover latch; 5. Inner liner; 501. Protrusion; 502. Magnet receiving groove; 503. Rod-shaped tool receiving groove. Detailed Implementation
[0027] 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.
[0028] See Figures 1-5 A new type of toolbox, comprising: The outer shell is an open-ended shell structure, and the interior of the outer shell is provided with several mounting grooves 3, which are dovetail grooves.
[0029] The inner liner 5, installed inside the outer shell, has a protrusion 501 corresponding to the mounting groove 3. The protrusion 501 is slidably installed in the mounting groove 3. The mounting groove 3 is arranged through the open end of the outer shell along its length, so that the mounting groove 3 remains open near the open end of the outer shell. The protrusion 501 matching the mounting groove 3 is a dovetail-shaped protrusion 501. The beneficial effect of this connection structure is that it increases the contact area, which leads to increased friction, making it less likely for the inner liner 5 to detach from the outer shell after connection. Due to its open design, the installation method is not only simple and safe, but also less likely to be damaged by improper force during installation compared to traditional technology. Moreover, in traditional technology, the mounting groove 3 is often set in a groove on the inner wall of the outer shell, and the protrusion 501 is a square protrusion that matches the size of the groove. This structure can easily cause damage during the demolding step when manufacturing the outer shell, such as incomplete demolding or failure to demold.
[0030] The mounting groove 3 is located on the inner wall of the outer shell, and the protrusion 501 is located on the outer wall of the inner liner 5. The inner wall of the outer shell and the outer wall of the inner liner 5 are opposite each other. Positioning the mounting groove 3 and protrusion 501 here allows them to be neatly concealed when the toolbox is installed, ensuring both aesthetics and storage space. There are two outer shells, a first outer shell 1 and a second outer shell 2. The first outer shell 1 and the second outer shell 2 are rotatably connected to form an integrally enclosed box structure when closed. A first connecting part 101 is integrally connected to the outer side of the first outer shell 1, and several second connecting parts 201 corresponding to the first connecting parts 101 are provided on the outer side of the second outer shell 2. A hinge groove 102 is formed on the first connecting part 101, and a connecting rod 202 corresponding to the hinge groove 102 is provided on the second connecting part 201. The connecting rod 202 is disposed within the hinge groove 102.
[0031] Specifically, the first outer shell 1 is the top cover of the toolbox, i.e., the rotating end. The first connecting part 101, integrally formed on its side, has an approximately U-shaped cross-section. When connected to the second connecting part 201, the opening expands through elastic deformation to allow the connecting rod 202 to pass through. After the connecting rod 202 passes through, the opening returns to its original size, providing radial restraint for the connecting rod 202, but not fixing it. The connecting rod 202 can rotate relative to it. During installation, only the elastic force of the hinge groove 102 needs to be overcome to achieve quick installation. Furthermore, if the outer shell of the toolbox is damaged, either the first outer shell 1 or the second outer shell 2 can be flexibly replaced.
[0032] After the first outer shell 1 and the second outer shell 2 are rotated and closed, the closed state is locked by the flip-top latch 4 structure. The structure of the flip-top latch 4 is a common technical means in the prior art, and will not be described in detail here.
[0033] The inner liner 5 has a circular magnet receiving slot 502 on its inner side. The inner liner 5 also has linearly arranged rod-shaped tool receiving slots 503. In existing toolboxes, the magnet receiving slots 502 are mostly square. Square magnets are rare in the market, and there is little choice in size. In this embodiment, the magnet receiving slots 502 can be changed to cylindrical shapes, which better suits market trends. Round magnets are easier to purchase if a magnet is lost or needs replacement. Specifically, the rod-shaped tool receiving slots 502 are mainly used to hold different types of screwdriver bits, in several quantities, with their size gradually increasing from one end to the other.
[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel toolbox, characterized in that, include: The outer shell is a shell structure with one end open, and the interior of the outer shell is provided with several mounting slots (3). The inner liner (5) is installed inside the outer shell and has a protrusion (501) corresponding to the mounting groove (3). The protrusion (501) is slidably installed in the mounting groove (3). The mounting groove (3) is arranged with its length direction facing the open end of the outer shell and is through, so that the mounting groove (3) remains open near the open end of the outer shell.
2. The novel toolbox according to claim 1, characterized in that, The mounting groove (3) is located on the inner wall of the outer shell, and the protrusion (501) is located on the outer wall of the inner liner (5).
3. A novel toolbox according to claim 1, characterized in that, The mounting groove (3) is a dovetail groove.
4. A novel toolbox according to claim 1, characterized in that, There are two outer shells, namely a first outer shell (1) and a second outer shell (2). The first outer shell (1) and the second outer shell (2) are rotatably connected to form an overall closed box structure after being closed.
5. A novel toolbox according to claim 4, characterized in that, The outer side of the first outer shell (1) is integrally connected with a first connecting part (101), and the outer side of the second outer shell (2) is provided with a plurality of second connecting parts (201) corresponding to the first connecting part (101).
6. A novel toolbox according to claim 5, characterized in that, The first connecting part (101) is formed with a hinge groove (102), and the second connecting part (201) is provided with a connecting rod (202) corresponding to the hinge groove (102), and the connecting rod (202) is disposed in the hinge groove (102).
7. A novel toolbox according to claim 4, characterized in that, After the first outer shell (1) and the second outer shell are rotated and closed, the closed state is locked by the flip-top latch (4) structure.
8. A novel toolbox according to claim 1, characterized in that, The inner liner (5) has a circular magnet receiving groove (502) on its inner side.
9. A novel toolbox according to claim 1, characterized in that, The inner liner (5) has a linear arrangement of rod-shaped tool receiving grooves (503) on its inner side.
