A quick locking clamp for drill chuck
By designing a clamping device with positioning components, locking blocks, and a rotating handle, the problem of low locking efficiency in traditional drill chucks is solved, enabling rapid locking and unlocking, improving work efficiency, and extending the service life of the drill chuck.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU CHANGJIANG AUTOMOBILE ELECTRONICS SYST
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional drill chucks have low locking efficiency and are difficult to lock, resulting in short service life and increased operating costs.
A fixture including a positioning element, a locking block, a rotating handle, and a positioning pin is designed. The locking block is driven to rotate in the assembly slot by rotating the handle, so as to quickly clamp or release the drill chuck. The locking block is crescent-shaped to stabilize the clamping. The rotating handle and the locking block are threaded together, and the structure is robust and easy to operate.
It enables quick locking and unlocking of the drill chuck, improving work efficiency, reducing the risk of drill chuck damage, extending service life, and reducing operating costs.
Smart Images

Figure CN224488369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamping technology, and in particular to a clamping device for quick locking of drill chucks. Background Technology
[0002] When using drill chucks on lathes, milling machines, and radial drills, the traditional method of tightening with a wrench is inefficient and difficult. A copper rod is needed to assist in tapping the wrench to tighten it. However, the force cannot be effectively controlled, which causes significant damage to the drill chuck. The rotating teeth of the drill chuck will also bend, deform, or break after a short period of use, resulting in a shorter service life of the drill chuck and increased operating costs. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the prior art by providing a quick-locking clamp for drill chucks, which can effectively and quickly lock and clamp the chucks, is convenient and flexible to use, and greatly improves work efficiency and cost control.
[0004] The technical solution of this utility model is as follows: A clamp for quick locking of a drill chuck includes a positioning component, a locking block, a rotating handle, and a positioning pin. The positioning component has a clamping hole for the drill chuck to pass through and an assembly groove on its outer side wall. The assembly groove communicates with the clamping hole. The locking block is installed in the assembly groove by the positioning pin. The rotating handle is connected to the locking block to drive the locking block to rotate in the assembly groove and to move the locking block in and out of the clamping hole, so as to clamp or release the drill chuck located in the clamping hole.
[0005] The above technical solution allows for quick clamping or loosening of the drill chuck, offering convenient and fast operation. It solves the problems of low efficiency and difficulty in locking existing drill chucks. In use, the drill chuck to be clamped is inserted into the clamping hole, and then the handle is rotated to rotate the locking block within the assembly slot. The end of the locking block enters the clamping hole and presses against the drill chuck, locking it onto the positioning component. To unlock, simply reverse the operation of the handle. This practical, convenient, and flexible solution improves work efficiency.
[0006] A further feature of this invention is that the locking block is crescent-shaped, with its two pointed ends facing downwards, so that it can move in and out of the clamping hole when the locking block rotates.
[0007] With the above-mentioned further configuration, the locking block can better lock the drill chuck. The crescent-shaped tip enters the clamping hole from the assembly slot and presses against the groove on the surface of the drill chuck, making the drill chuck unable to move and ensuring structural stability.
[0008] A further feature of this invention is that the rotating handle includes an integrally formed operating part and a connecting part. The diameter of the operating part is larger than the diameter of the connecting part. The operating part is located outside the assembly groove. The locking block is provided with a connecting hole. The connecting part is located inside the connecting hole and connected to the locking block.
[0009] With the above-mentioned further design, the rotating handle is machined into a single piece, resulting in a robust structure with high strength, resistance to damage, and easy operation of the locking block, making operation more labor-saving.
[0010] A further feature of this invention is that the connecting part and the locking block are threaded together, the connecting part is provided with an external thread, and the connecting hole is provided with an internal thread. The internal and external threads are engaged to achieve the connection between the connecting part and the locking block.
[0011] With the above-mentioned further design, the connection structure is simple, the assembly and disassembly are flexible, and the assembly and disassembly can be carried out quickly.
[0012] A further feature of this invention is that the locking block is also provided with a positioning hole communicating with the connecting hole, the positioning pin is inserted into the positioning hole, the connecting part is provided with a mounting hole, the mounting hole is coaxially arranged with the positioning hole, and the positioning pin is inserted into the mounting hole.
[0013] By adopting the above-mentioned further settings, the structure is stable when the rotating handle and the locking block are installed in the assembly slot, and the rotating handle can better drive the locking block to rotate.
[0014] A further feature of this invention is that the positioning element is arranged in a ring shape, the clamping hole is arranged along the axial direction of the positioning element, and the positioning element has installation channels on both sides of the assembly groove to connect the assembly groove with the outside world. The two ends of the positioning pin are inserted into the corresponding installation channels.
[0015] With the above-mentioned further design, the positioning component is arranged in a ring shape to match the drill chuck, and the installation channel is designed to facilitate the installation of the locking block and rotating handle in the assembly slot, and the structure is firm after assembly. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the drill chuck being installed on the positioning component according to a specific embodiment of the present invention;
[0017] Figure 2 This is a schematic diagram of a drill chuck according to a specific embodiment of the present utility model;
[0018] Figure 3 This is a schematic diagram of the positioning component according to a specific embodiment of the present utility model;
[0019] Figure 4 This is a schematic diagram showing the operation of the handle after rotating it according to a specific embodiment of this utility model;
[0020] Figure 5 This is a schematic diagram of the locking block and the rotating handle in a specific embodiment of the present utility model;
[0021] Figure 6 This is a schematic diagram of the rotating handle in a specific embodiment of the present utility model;
[0022] Figure 7 This is a schematic diagram of the locking block in a specific embodiment of the present invention.
[0023] In the figure, 1 is the positioning component; 11 is the clamping hole; 12 is the assembly groove; 13 is the installation channel; 2 is the locking block; 21 is the connecting hole; 3 is the rotating handle; 31 is the operating part; 32 is the connecting part; 321 is the positioning hole; and 4 is the positioning pin. Detailed Implementation
[0024] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0026] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0027] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0028] like Figure 1-7As shown, a quick-locking clamp for a drill chuck includes a positioning element 1, a locking block 2, a rotating handle 3, and a positioning pin 4. The positioning element 1 has a clamping hole 11 for the drill chuck to pass through, and an assembly groove 12 on its outer side wall. The assembly groove 12 communicates with the clamping hole 11. The locking block 2 is installed in the assembly groove 12 via the positioning pin 4. The rotating handle 3 is connected to the locking block 2 to drive the locking block 2 to rotate within the assembly groove 12, causing the locking block 2 to move in and out of the clamping hole 11, thus aligning with the clamping hole. The drill chuck within the clamping hole 11 can be clamped or released quickly, offering convenient and fast operation. This solves the problems of low efficiency and difficult locking found in existing drill chucks. In use, the drill chuck to be clamped is inserted into the clamping hole 11, and then the handle 3 is rotated, causing the locking block 2 to rotate within the assembly groove 12. The end of the locking block 2 enters the clamping hole 11 and presses against the drill chuck, locking it onto the positioning member 1. To unlock, simply rotate the handle 3 in the opposite direction. This practical and flexible design improves work efficiency. Specifically, the locking block 2 is crescent-shaped, with its two pointed ends facing downwards. As the locking block 2 rotates, it enters and exits the clamping hole 11, allowing for better locking of the drill chuck. The crescent-shaped pointed end enters the clamping hole from the assembly groove 12 and presses against the groove on the surface of the drill chuck, preventing further movement and ensuring structural stability.
[0029] The rotating handle 3 includes an integrally formed operating part 31 and a connecting part 32. The diameter of the operating part 31 is larger than the diameter of the connecting part 32. The operating part 31 is located outside the assembly groove 12. The locking block 2 is provided with a connecting hole 21. The connecting part 32 is located in the connecting hole 21 and connected to the locking block 2. The rotating handle 3 is integrally machined, with a robust structure, high strength, and is not easily damaged. It facilitates the rotation of the locking block 2 and is more labor-saving during operation. The connecting part 32 and the locking block 2 are threaded together. The connecting part 32 is provided with an external thread, and the connecting hole 21 is provided with an internal thread. The internal and external threads are engaged to achieve the connection between the connecting part 32 and the locking block 2. The connection structure is simple, flexible in disassembly and assembly, and can be quickly disassembled and assembled. Of course, the connecting part 32 and the locking block 2 can also be connected in other ways, such as a fixed connection, such as an interference fit or a snap-fit connection.
[0030] The locking block 2 is also provided with a positioning hole 321 communicating with the connecting hole 21. The positioning pin 4 is inserted into the positioning hole 321. The connecting part 32 is provided with a mounting hole. The mounting hole and the positioning hole 321 are coaxially arranged. The positioning pin 4 is inserted into the mounting hole, so that when the rotating handle 3 and the locking block 2 are installed in the assembly groove 12, the structure is stable. At the same time, rotating the handle 3 can better drive the locking block 2 to rotate.
[0031] The positioning component 1 is arranged in a ring shape, and the clamping hole 11 is arranged along the axial direction of the positioning component 1. The positioning component 1 is integrally formed by turning. The size of the positioning hole 321 is adapted to the drill chuck. The positioning component 1 has installation channels 13 on both sides of the assembly groove 12 to connect the assembly groove 12 with the outside. The two ends of the positioning pin 4 are inserted into the corresponding installation channels 13. The positioning component 1 is arranged in a ring shape and is adapted to the drill chuck. The installation channels 13 facilitate the installation of the locking block 2 and the rotating handle 3 in the assembly groove 12, and the structure is firm after assembly.
Claims
1. A clamp for quick locking of a drill chuck, characterized in that, The device includes a positioning component (1), a locking block (2), a rotating handle (3), and a positioning pin (4). The positioning component (1) has a clamping hole (11) for the drill chuck to pass through, and an assembly groove (12) is provided on the outer wall of the positioning component (1). The assembly groove (12) communicates with the clamping hole (11). The locking block (2) is installed in the assembly groove (12) through the positioning pin (4). The rotating handle (3) is connected to the locking block (2) to drive the locking block (2) to rotate in the assembly groove (12) and to move the locking block (2) into and out of the clamping hole (11) so as to clamp or release the drill chuck located in the clamping hole (11).
2. The clamping device for quick locking of the drill chuck according to claim 1, characterized in that, The locking block (2) is crescent-shaped, with its two ends facing downwards, so that it can enter and exit the clamping hole (11) when the locking block (2) rotates.
3. The clamping device for quick locking of the drill chuck according to claim 1 or 2, characterized in that, The rotating handle (3) includes an integrally formed operating part (31) and a connecting part (32). The diameter of the operating part (31) is larger than the diameter of the connecting part (32). The operating part (31) is located outside the assembly groove (12). The locking block (2) is provided with a connecting hole (21). The connecting part (32) is located in the connecting hole (21) and connected to the locking block (2).
4. The clamping device for quick locking of the drill chuck according to claim 3, characterized in that, The connecting part (32) and the locking block (2) are threaded together. The connecting part (32) is provided with an external thread, and the connecting hole (21) is provided with an internal thread. The internal and external threads are engaged to realize the connection between the connecting part (32) and the locking block (2).
5. The clamp for quick locking of the drill chuck according to claim 3, characterized in that, The locking block (2) is also provided with a positioning hole (321) that communicates with the connecting hole (21). The positioning pin (4) is inserted into the positioning hole (321). The connecting part (32) is provided with an installation hole. The installation hole and the positioning hole (321) are coaxially arranged. The positioning pin (4) is inserted into the installation hole.
6. The clamp for quick locking of the drill chuck according to claim 1 or 2, characterized in that, The positioning component (1) is arranged in a ring shape, the clamping hole (11) is arranged along the axial direction of the positioning component (1), and the positioning component (1) is provided with a connecting mounting channel (13) between the mounting groove (12) and the outside on both sides of the mounting groove (12). The two ends of the positioning pin (4) are inserted into the corresponding mounting channel (13).