Drill bit cartridge

The combination design of the inner liner and the positioning cover solves the problems of unstable and unsightly drill bits in the drill bit box, and achieves stable placement and quick replacement of drill bits.

CN224466409UActive Publication Date: 2026-07-07NINGBO DONGQIAN LAKE TOURIST RESORT JINSHI PLASTIC ELECTRICAL APPLIANCES FACTORY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DONGQIAN LAKE TOURIST RESORT JINSHI PLASTIC ELECTRICAL APPLIANCES FACTORY
Filing Date
2025-07-23
Publication Date
2026-07-07

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Abstract

This utility model discloses a drill bit box, including a box base, with an inner liner barrel fixedly connected inside the box base. The outer wall of the inner liner barrel has stepped grooves arranged in a descending order to hold the bottom of drill bits. An intermediate sleeve is connected to the inner liner barrel, and the intermediate sleeve has intermediate sleeve holes for supporting the middle part of the drill bit. The position of each intermediate sleeve hole corresponds to each stepped groove. A positioning cover is connected to the intermediate sleeve, and the upper end face of the positioning cover has a drill bit positioning hole with an extension ring extending from it. The drill bit positioning hole, the intermediate sleeve hole, and the stepped grooves are used to hold one drill bit. The drill bit positioning holes are arranged from smallest to largest along the periphery of the positioning cover, and correspondingly, the intermediate sleeve hole and the stepped grooves are also arranged accordingly. This novel drill bit box structure results in drill bits of uniform height, making the box neat and aesthetically pleasing.
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Description

Technical Field

[0001] This utility model relates to the field of tool box manufacturing technology, and in particular to a drill bit box. Background Technology

[0002] In machining, drill bits are one of the most commonly used tools. There are many different specifications and models of drill bits, and they often need to be changed frequently during use. To facilitate carrying and changing drill bits during work, drill bit boxes are usually used. However, because drill bits are generally long and slender, when many drill bits are placed in a drill bit box, they are often randomly arranged, making it difficult to quickly and accurately locate the correct drill bit model when a change is needed.

[0003] Chinese Patent Publication (Announcement) No.: CN219053788U, Patent Title: Drill Bit Box, which discloses the technical solution of "

[0003] This utility model provides a drill bit box, including: a box body with an opening; a cover body covering the opening of the box body; and a support frame, which is disposed in the box body and has multiple through holes for accommodating drill bits of different specifications, and the support frame is stepped", achieving the technical effect of "

[0007] In the drill bit box of this utility model, drill bits of different specifications can be placed in the through holes of different specifications on the support frame, realizing the precise positioning of the drill bits. When the operator needs to change the drill bit, he / she can quickly and accurately find the corresponding model of drill bit. The storage and replacement of drill bits is very convenient. Moreover, since the support frame is stepped, the operator does not need to look down too much to find the corresponding model of drill bit. He / she can quickly and accurately find the required model of drill bit by looking at the support frame, which is very convenient".

[0004] In this type of drill bit holder, the bottom where the drill bits are placed is flat. Because the specifications and models of drill bits vary, their heights differ. After various drill bits are placed, their exposed heads are at different heights. When taking them out, there is a risk of a person bumping into another drill bit, or foreign objects touching the drill bits and damaging the twisted part of the drill bit. At the same time, the uneven heights are also unsightly. Utility Model Content

[0005] The purpose of this utility model is to provide a drill bit box to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical measures: a drill bit box, including a box base, characterized in that: an inner liner is fixedly connected inside the box base, and the outer wall of the inner liner is provided with stepped grooves arranged in a high-low order for placing the bottom surface of the drill bit; the inner liner is connected to an intermediate sleeve, and the intermediate sleeve is provided with an intermediate sleeve hole for supporting the middle part of the drill bit; the position of each intermediate sleeve hole corresponds to each stepped groove; the intermediate sleeve is connected to a positioning cover, and the upper end face of the positioning cover is provided with a drill bit positioning hole, and an extension ring extends from the drill bit positioning hole; the drill bit positioning hole, the intermediate sleeve hole, and the stepped groove are used to place a drill bit; the drill bit positioning hole is arranged in ascending order along the periphery of the positioning cover, and correspondingly, the intermediate sleeve hole and the stepped groove are also arranged accordingly.

[0007] Compared with existing technologies, the advantages of this utility model are as follows: the drill bit positioning hole, the intermediate sleeve hole, and the stepped groove are used to place a single drill bit, allowing for more stable placement. Furthermore, this novel drill bit box structure features a stepped groove at the bottom for holding the drill bits, ensuring that the exposed heads of drill bits of various specifications are at the same height. During placement or removal, even if foreign objects fall and touch the drill bits, the force on each individual drill bit is distributed because multiple drill bits are on the same plane, preventing damage to the twisted parts of the drill bits. Additionally, the uniform height of the placed drill bits creates a neat and aesthetically pleasing appearance.

[0008] As an improvement of this utility model, the intermediate layer sleeve is provided with an outer wall, and the positioning cover is provided with an inner wall. The positioning cover and the intermediate layer sleeve are connected by fitting the inner wall inside the outer wall. The purpose of this design is to achieve a detachable connection between the positioning cover and the intermediate layer sleeve.

[0009] As an improvement to this utility model, a specification mark for the drill bit is provided next to the drill bit positioning hole. The purpose of this design is to allow for quick retrieval of drill bits of this size via the specification mark.

[0010] As an improvement to this utility model, a widened bushing is provided above the two smallest intermediate sleeve holes, and the widened bushing is integrally formed with the intermediate sleeve. The purpose of this design is that the finest drill bit is placed on the smallest intermediate sleeve hole. Because the drill bit is thin, its body is relatively thin and its inclination angle is relatively large. If this area is not widened, it is easy for it to be unstable and fall through.

[0011] As an improvement of this utility model, a fixing ring is provided on the bottom outer wall of the inner lining barrel, which is fixedly connected to the box base. The purpose of this design is to ensure a stable connection between the inner lining barrel and the box base through the protruding fixing ring.

[0012] As an improvement to this utility model, an elastic clamping rod is provided on the box base. The purpose of this design is to allow the drill bit box to be secured to another tool for convenient storage via the elastic clamping rod.

[0013] As an improvement to this utility model, a handle is provided on the box base. The purpose of this design is to facilitate handling. Attached Figure Description

[0014] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0015] In the attached diagram:

[0016] Figure 1 This is an exploded view of the drill bit box described in this utility model.

[0017] Figure 2 This is a perspective view of the drill bit box described in this utility model.

[0018] Figure 3 This is a perspective view of the drill bit box described in this utility model (without the box cover).

[0019] Figure 4 This is a perspective view of the drill bit box described in this utility model (without the box cover and box base).

[0020] Figure 5 This is a perspective view of the positioning cover described in this utility model.

[0021] Figure 6 is a perspective view of the inner lining bucket described in this utility model.

[0022] Figure 7 is a perspective view of the intermediate layer sleeve described in this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Box base; 2. Inner liner; 3. Stepped groove; 4. Intermediate layer sleeve; 5. Intermediate sleeve hole; 6. Positioning cover; 7. Drill bit positioning hole; 8. Outer wall; 9. Inner wall; 10. Specification marking; 11. Widened bushing; 12. Fixed bottom ring; 13. Elastic clamping rod; 14. Handle; 15. Box cover; 16. Extension ring. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Example 1

[0026] Please refer to Figure 1 -7.

[0027] This embodiment provides a drill bit box, including a box base 1 and a box cover 15, with an inner liner 2 fixedly connected inside the box base 1.

[0028] In the embodiments of this utility model application, please refer to Figure 6 The outer wall 8 of the inner liner barrel 2 is provided with stepped grooves 3 arranged in a high-low order to place the bottom of the drill bit.

[0029] In the embodiments of this utility model application, please refer to Figure 4 The inner lining 2 is connected to an intermediate sleeve 4, and the intermediate sleeve 4 is connected to a positioning cover 6.

[0030] Further, please refer to Figure 7 The intermediate sleeve 4 is provided with intermediate sleeve holes 5 for supporting the middle part of the drill bit, and the position of each intermediate sleeve hole 5 corresponds to each stepped groove 3.

[0031] In the embodiments of this utility model application, please refer to Figure 5 The upper surface of the positioning cover 6 is provided with a drill bit positioning hole 7, and an extension ring 16 extends from the drill bit positioning hole 7. The function of the extension ring 16 is to increase the contact area of ​​the drill bit and prevent it from shaking.

[0032] Further, please refer to Figure 4 The drill bit positioning hole 7, the intermediate sleeve hole 5, and the stepped groove 3 are used to place a drill bit. The drill bit positioning hole 7 is arranged in order from small to large along the periphery of the positioning cover 6. Correspondingly, the intermediate sleeve hole 5 and the stepped groove 3 are also arranged accordingly.

[0033] In the embodiments of this utility model application, please refer to Figure 5 and Figure 7 The intermediate layer sleeve 4 is provided with an outer wall 8, and the positioning cover 6 is provided with an inner wall 9. The positioning cover 6 and the intermediate layer sleeve 4 are connected by fitting the inner wall 9 inside the outer wall 8. This achieves a detachable connection between the positioning cover 6 and the intermediate layer sleeve 4.

[0034] In the embodiments of this utility model application, please refer to Figure 5 Next to the drill bit positioning hole 7, there is a drill bit specification marking 10. For example, if there is a mark "11 / 32" next to the hole, it indicates that the hole is used to hold a drill bit of size 11 / 32. The specification marking 10 allows for quick access to drill bits of that size.

[0035] Further, please refer to Figure 7A widened bushing 11 is provided above the two smallest intermediate sleeve holes 5, and the widened bushing 11 is integrally formed with the intermediate layer sleeve 4. The finest drill bit is placed on the smallest intermediate sleeve hole 5. Because the drill bit is thin, its body is relatively thin and its inclination is relatively large. If it is not widened here, it is easy to lose stability and fall down.

[0036] In the embodiments of this utility model application, please refer to Figure 6 A fixing ring 12 is provided on the bottom outer wall 8 of the inner liner 2, which is fixedly connected to the box base 1. The protruding fixing ring 12 ensures a stable connection between the inner liner 2 and the box base 1.

[0037] In the embodiments of this utility model application, please refer to Figure 2 and Figure 3 An elastic clamping rod 13 is provided on the box base 1. The drill bit box can be clipped to another tool for easy storage using the elastic clamping rod 13.

[0038] Furthermore, a handle 14 is provided on the box base 1 for easy handling.

[0039] The beneficial effects of this utility model are as follows: the drill bit positioning hole 7, the intermediate sleeve hole 5, and the stepped groove 3 are used to place a drill bit, which makes the drill bit more stable. At the same time, the bottom of this novel drill bit box, where the drill bit is placed, is a stepped surface of the stepped groove 3, ensuring that the exposed heads of drill bits of various specifications are at the same height after placement. During handling, even if foreign objects fall and touch the drill bits, the force on each individual drill bit is distributed because multiple drill bits are on the same plane, preventing damage to the twisted parts of the drill bits. Furthermore, the uniform height of the placed drill bits creates a neat and aesthetically pleasing appearance.

[0040] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drill bit box, comprising a box base (1), characterized in that: in The inner liner (2) is fixedly connected to the box base (1). The outer wall (8) of the inner liner (2) is provided with stepped slots (3) arranged in a high-low order to place the bottom of the drill bit. The inner liner (2) is connected to an intermediate sleeve (4). The intermediate sleeve (4) is provided with an intermediate sleeve hole (5) for supporting the middle part of the drill bit. The position of each intermediate sleeve hole (5) corresponds to each stepped slot (3). The intermediate sleeve (4) is connected to a positioning cover (6). The upper end face of the positioning cover (6) is provided with a drill bit positioning hole (7). An extension ring extends from the drill bit positioning hole (7). The drill bit positioning hole (7), the intermediate sleeve hole (5), and the stepped slot (3) are used to place a drill bit. The drill bit positioning hole (7) is arranged in order from small to large along the periphery of the positioning cover (6). Correspondingly, the intermediate sleeve hole (5) and the stepped slot (3) are also arranged accordingly.

2. The drill bit box according to claim 1, characterized in that: The intermediate layer sleeve (4) is provided with an outer wall (8), and the positioning cover (6) is provided with an inner wall (9). The positioning cover (6) and the intermediate layer sleeve (4) are connected by fitting the inner wall (9) inside the outer wall (8).

3. The drill bit box according to claim 1, characterized in that: The drill bit specification marking (10) is provided next to the drill bit positioning hole (7).

4. The drill bit box according to claim 1, characterized in that: A widened bushing (11) is provided above the two smallest intermediate sleeve holes (5), and the widened bushing (11) is integrally formed with the intermediate sleeve (4).

5. The drill bit box according to claim 1, characterized in that: A fixing bottom ring (12) is provided on the bottom outer wall (8) of the inner lining barrel (2) and is fixedly connected to the box base (1).

6. The drill bit box according to claim 1, characterized in that: An elastic clamp (13) is provided on the box base (1).

7. The drill bit box according to claim 1, characterized in that: A handle (14) is provided on the box base (1).