Strengthening structure of hexagonal handle ironwork cobalt drill

By incorporating reinforcing and stabilizing components into the hexagonal shank twist drill, the problem of easy breakage of the hexagonal shank twist drill has been solved, resulting in improved strength and operational stability.

CN223833523UActive Publication Date: 2026-01-27YANGZHOU FEILING TOOLS CO LTD
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Patent Information

Application Number
CN202423192722.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2026-01-27
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

Hexagonal shank twist drills are prone to breakage during use, leading to resource waste, and existing technologies have failed to effectively increase their strength.

Method used

A reinforcing assembly, including a reinforcing groove and a reinforcing mandrel, is installed on the body of the hexagonal shank iron drill. The reinforcing mandrel is fixed in position by a return spring through the cooperation of a spherical arc block and a spherical rod, and the stability of the fastening ring is ensured by the guide rod and snap-fit ​​rod of the stabilizing assembly.

Benefits of technology

It effectively enhances the structural strength of the hexagonal shank iron drill, prevents drill bit breakage during use, and improves stability and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of hexagonal handle ironwork cobalt drills, and discloses a hexagonal handle ironwork cobalt drill reinforcing structure which comprises a hexagonal handle ironwork cobalt drill body and a handle portion arranged at one end of the hexagonal handle ironwork cobalt drill body, a reinforcing assembly is installed on the surface of the hexagonal handle ironwork cobalt drill body and comprises a reinforcing groove, and the reinforcing groove is formed in the handle portion of the hexagonal handle ironwork cobalt drill body. A reinforcing groove is formed in the hexagonal handle iron cobalt drill body, a reinforcing core rod is inserted into the reinforcing groove, a spherical arc block is installed on the surface of the reinforcing core rod and clamped in a special-shaped groove formed in the surface of the handle part, and a spherical rod is slidably connected into a through hole formed in the surface of the handle part. The hexagonal-handle twist drill has the advantages that the strength of the hexagonal-handle twist drill can be improved, and the situation that a drill bit is prone to breakage in the using process of the hexagonal-handle twist drill is avoided.
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Description

Technical Field

[0001] This utility model belongs to the technical field of hexagonal shank iron cobalt drills, specifically a reinforced structure for hexagonal shank iron cobalt drills. Background Technology

[0002] A hexagonal shank twist drill is a type of twist drill with a hexagonal shank. Compared to a round shank, the hexagonal shank can be more firmly held in power tools or drill chucks, effectively preventing the drill bit from slipping during drilling and ensuring drilling accuracy and stability.

[0003] When using a hexagonal shank twist drill, the front end of the drill bit is the main part that bears the impact force and wear. During use, the drill bit is prone to breakage, resulting in waste of resources. It is necessary to increase the strength of the hexagonal shank twist drill to prevent breakage during use.

[0004] Therefore, a hexagonal shank iron cobalt drill reinforcement structure is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a reinforced structure for hexagonal shank iron cobalt drills, which has the advantages of increasing the strength of hexagonal shank twist drills and preventing the drill bit from easily breaking during use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hexagonal shank iron cobalt drill reinforcing structure, comprising a hexagonal shank iron cobalt drill body and a shank disposed at one end of the hexagonal shank iron cobalt drill body, wherein a reinforcing component is mounted on the surface of the hexagonal shank iron cobalt drill body;

[0007] The reinforcing component includes a reinforcing groove. The interior of the hexagonal shank cobalt drill body has a reinforcing groove. A reinforcing mandrel is inserted into the reinforcing groove. A spherical arc block is mounted on the surface of the reinforcing mandrel. The spherical arc block is engaged in a groove on the surface of the shank. A spherical rod is slidably connected in a through hole on the surface of the shank. One end of the spherical rod passes through the shank and is inserted into a hole on the surface of the spherical arc block. A stabilizing component is mounted on the surface of the shank.

[0008] Preferably, a return spring is sleeved on the surface of the spherical rod, one end of the return spring is connected to the spherical rod, and the other end of the return spring is mounted on the surface of the handle.

[0009] Preferably, the spherical arc block and the spherical rod are adapted to each other.

[0010] Preferably, the reinforcing mandrel is made of metal steel, which is not easy to bend and can effectively enhance the structural strength of the hexagonal shank iron cobalt drill body.

[0011] Preferably, the stabilizing component includes a connecting plate, the connecting plates are symmetrically mounted on the surface of the handle, a fastening ring is provided on the surface of the handle, a guide rod is slidably connected in a through hole opened on the surface of the fastening ring, both ends of the guide rod pass through the fastening ring and are connected to the connecting plate, the fastening ring is in contact with the ball rod, a snap-fit ​​rod is installed on the surface of the ball rod, and a snap-fit ​​groove adapted to the snap-fit ​​rod is opened on the surface of the fastening ring, the snap-fit ​​rod snaps into the snap-fit ​​groove opened on the surface of the fastening ring.

[0012] Preferably, a movable rod is rotatably connected within a groove on the surface of the fastening ring, a connecting rod is mounted on the surface of the movable rod, an abutting rod is mounted within a groove on the surface of the fastening ring, the abutting rod is in contact with the connecting rod, and a stop rod is slidably connected inside the connecting rod, the stop rod abutting against the locking rod.

[0013] Preferably, a torsion spring is sleeved on the surface of the movable rod, one end of the torsion spring is installed in a groove on the surface of the fastening ring, and the other end of the torsion spring is connected to the connecting rod. A second return spring is sleeved on the surface of the stop rod, one end of the second return spring is connected to the stop rod, and the other end of the second return spring is installed inside the connecting rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model incorporates a reinforcing component. When strengthening the body of a hexagonal shank cobalt drill, the reinforcing mandrel is first inserted into the reinforcing groove. Then, a spherical arc block is engaged in a groove on the shank surface. As the spherical arc block engages with the shank, it pushes a spherical rod upwards. This causes the return spring to deform. When the spherical rod reaches the desired position, the spherical arc block continues forward, and the return spring forces the spherical rod into a hole on the surface of the arc block. This fixes the reinforcing mandrel in place, increasing the strength of the hexagonal shank cobalt drill body and preventing breakage during use.

[0016] 2. This utility model incorporates a stabilizing component. After the spherical rod is adjusted, the operator slides the fastening ring, causing it to slide on the surface of the guide rod. The guide rod guides the movement of the fastening ring. As the fastening ring moves, the locking rod pushes the connecting rod through the stop rod. The connecting rod rotates within the groove on the surface of the fastening ring via the movable rod. When the fastening ring moves to align with the spherical rod, the locking rod engages in the slot on the surface of the fastening ring. Because the connecting rod is blocked by the abutment rod, the stop rod further blocks the locking rod, thus stabilizing the position of the fastening ring and preventing it from dislodging during use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the body and shank of the hexagonal shank cobalt drill of this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the spherical rod and the return spring of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the hexagonal shank iron cobalt drill body of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the movable rod and connecting rod of this utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the connecting rod of this utility model.

[0023] In the diagram: 1. Hexagonal shank iron cobalt drill body; 12. Shank; 2. Reinforcing assembly; 21. Reinforcing groove; 22. Reinforcing mandrel; 23. Spherical arc block; 24. Spherical rod; 26. Return spring one; 3. Stabilizing assembly; 31. Connecting plate; 32. Fastening ring; 33. Guide rod; 34. Snap-fit ​​rod; 35. Movable rod; 36. Connecting rod; 37. Abutment rod; 38. Stop rod; 39. Torsion spring; 310. Return spring two. Detailed Implementation

[0024] 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.

[0025] like Figures 1 to 6As shown, this utility model provides a hexagonal shank iron cobalt drill reinforcing structure, including a hexagonal shank iron cobalt drill body 1 and a shank 12 disposed at one end of the hexagonal shank iron cobalt drill body 1, and a reinforcing component 2 is installed on the surface of the hexagonal shank iron cobalt drill body 1.

[0026] The reinforcing component 2 includes a reinforcing groove 21. The reinforcing groove 21 is provided inside the hexagonal shank iron cobalt drill body 1. A reinforcing mandrel 22 is inserted into the reinforcing groove 21. A spherical arc block 23 is installed on the surface of the reinforcing mandrel 22. The spherical arc block 23 is engaged in a groove on the surface of the shank 12. A spherical rod 24 is slidably connected in a through hole on the surface of the shank 12. One end of the spherical rod 24 passes through the shank 12 and is inserted into a hole on the surface of the spherical arc block 23. A stabilizing component 3 is installed on the surface of the shank 12.

[0027] Specifically, such as Figure 1 As shown, a return spring 26 is fitted on the surface of the ball rod 24. One end of the return spring 26 is connected to the ball rod 24, and the other end of the return spring 26 is installed on the surface of the shank 12. The spherical arc block 23 and the ball rod 24 are compatible. The reinforcing mandrel 22 is made of metal steel, which is not easy to bend and can effectively enhance the structural strength of the hexagonal shank iron cobalt drill body 1.

[0028] In this implementation scheme: When strengthening the body 1 of the hexagonal shank iron cobalt drill, the reinforcing mandrel 22 is first inserted into the reinforcing groove 21. At this time, the spherical arc block 23 is engaged in the irregular groove opened on the surface of the shank 12. During the engagement of the spherical arc block 23 with the shank 12, the spherical arc block 23 pushes the spherical rod 24 upward. The spherical rod 24 then causes the return spring 26 to deform. When the spherical rod 24 moves to the appropriate position, as the spherical arc block 23 continues to move forward, the spherical rod 24 is engaged in the insertion hole opened on the surface of the spherical arc block 23 by the return force of the return spring 26. This achieves the position fixation of the reinforcing mandrel 22, thereby increasing the strength of the hexagonal shank iron cobalt drill body 1 and preventing breakage during use.

[0029] Please refer to Example 2 Figures 1-6 The difference between this embodiment and embodiment 1 is that: the stabilizing component 3 includes a connecting plate 31, the connecting plate 31 is symmetrically installed on the surface of the handle 12, a fastening ring 32 is provided on the surface of the handle 12, a guide rod 33 is slidably connected in the through hole opened on the surface of the fastening ring 32, both ends of the guide rod 33 pass through the fastening ring 32 and are connected to the connecting plate 31, the fastening ring 32 is in contact with the ball rod 24, a snap-fit ​​rod 34 is installed on the surface of the ball rod 24, and a snap-fit ​​groove adapted to the snap-fit ​​rod 34 is opened on the surface of the fastening ring 32, and the snap-fit ​​rod 34 is snapped into the snap-fit ​​groove opened on the surface of the fastening ring 32.

[0030] Specifically, such as Figure 1-6 As shown, a movable rod 35 is rotatably connected within a groove on the surface of the fastening ring 32. A connecting rod 36 is mounted on the surface of the movable rod 35. An abutting rod 37 is mounted within the groove on the surface of the fastening ring 32, and the abutting rod 37 is in contact with the connecting rod 36. A stop rod 38 is slidably connected inside the connecting rod 36, and the stop rod 38 abuts against the locking rod 34. A torsion spring 39 is sleeved on the surface of the movable rod 35. One end of the torsion spring 39 is installed in the groove on the surface of the fastening ring 32, and the other end of the torsion spring 39 is connected to the connecting rod 36. A second return spring 310 is sleeved on the surface of the stop rod 38. One end of the second return spring 310 is connected to the stop rod 38, and the other end of the second return spring 310 is installed inside the connecting rod 36.

[0031] In this implementation scheme: After the position of the ball rod 24 is adjusted, the operator slides the fastening ring 32, causing the fastening ring 32 to slide on the surface of the guide rod 33. The guide rod 33 guides the movement of the fastening ring 32. As the fastening ring 32 moves, the locking rod 34 pushes the connecting rod 36 to move through the stop rod 38. The connecting rod 36 rotates in the groove on the surface of the fastening ring 32 through the movable rod 35. When the fastening ring 32 moves to fit against the ball rod 24, the locking rod 34 engages in the slot on the surface of the fastening ring 32. Since the connecting rod 36 is blocked by the abutment rod 37, the stop rod 38 blocks the locking rod 34, thereby stabilizing the position of the fastening ring 32 and preventing it from coming off during use.

[0032] During disassembly, the operator first uses the handle on the surface of the stop lever 38 to slide the stop lever 38 inside the connecting rod 36. At this time, the stop lever 38 causes the return spring 310 to deform, and then pushes the connecting rod 36 into the groove on the surface of the fastening ring 32. At this time, the movable rod 35 causes the torsion spring 39 to deform, and the torsion spring 39 can reset the position of the movable rod 35. Then, the fastening ring 32 is pushed to move its position, thereby achieving disassembly.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] 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 reinforcing structure for a hexagonal shank cobalt iron drill, comprising a hexagonal shank cobalt iron drill body (1) and a shank (12) disposed at one end of the hexagonal shank cobalt iron drill body (1), characterized in that: The surface of the hexagonal shank iron cobalt drill body (1) is fitted with a reinforcing component (2); The reinforcing component (2) includes a reinforcing groove (21). The hexagonal shank cobalt drill body (1) has a reinforcing groove (21) inside. A reinforcing mandrel (22) is inserted into the reinforcing groove (21). A spherical arc block (23) is installed on the surface of the reinforcing mandrel (22). The spherical arc block (23) is engaged in a groove on the surface of the shank (12). A spherical rod (24) is slidably connected in a through hole on the surface of the shank (12). One end of the spherical rod (24) passes through the shank (12) and is inserted into a hole on the surface of the spherical arc block (23). A stabilizing component (3) is installed on the surface of the shank (12).

2. The hexagonal shank iron cobalt drill reinforcement structure according to claim 1, characterized in that: A return spring (26) is fitted on the surface of the spherical rod (24). One end of the return spring (26) is connected to the spherical rod (24), and the other end of the return spring (26) is installed on the surface of the handle (12).

3. The hexagonal shank iron cobalt drill reinforcement structure according to claim 2, characterized in that: The spherical arc block (23) and the spherical rod (24) are compatible with each other.

4. The hexagonal shank iron cobalt drill reinforcement structure according to claim 3, characterized in that: The reinforcing mandrel (22) is made of metal steel, which is not easy to bend and can effectively enhance the structural strength of the hexagonal shank iron cobalt drill body (1).

5. The hexagonal shank iron cobalt drill reinforcement structure according to claim 1, characterized in that: The stabilizing component (3) includes a connecting plate (31). The connecting plate (31) is symmetrically mounted on the surface of the handle (12). A fastening ring (32) is provided on the surface of the handle (12). A guide rod (33) is slidably connected in the through hole opened on the surface of the fastening ring (32). Both ends of the guide rod (33) pass through the fastening ring (32) and are connected to the connecting plate (31). The fastening ring (32) is in contact with the ball rod (24). A snap-fit ​​rod (34) is installed on the surface of the ball rod (24). A slot adapted to the snap-fit ​​rod (34) is opened on the surface of the fastening ring (32). The snap-fit ​​rod (34) is snapped into the slot opened on the surface of the fastening ring (32).

6. The hexagonal shank iron cobalt drill reinforcement structure according to claim 5, characterized in that: A movable rod (35) is rotatably connected in the groove on the surface of the fastening ring (32). A connecting rod (36) is installed on the surface of the movable rod (35). An abutting rod (37) is installed in the groove on the surface of the fastening ring (32). The abutting rod (37) fits against the connecting rod (36). A stop rod (38) is slidably connected inside the connecting rod (36). The stop rod (38) abuts against the locking rod (34).

7. The hexagonal shank iron cobalt drill reinforcement structure according to claim 6, characterized in that: A torsion spring (39) is fitted on the surface of the movable rod (35). One end of the torsion spring (39) is installed in a groove on the surface of the fastening ring (32). The other end of the torsion spring (39) is connected to the connecting rod (36). A second return spring (310) is fitted on the surface of the stop rod (38). One end of the second return spring (310) is connected to the stop rod (38). The other end of the second return spring (310) is installed inside the connecting rod (36).