Drill chuck for pneumatic electric tool capable of being quickly disassembled and assembled

Abstract

The utility model discloses a quick dismountable drill chuck for a pneumatic electric tool, which relates to the technical field of pneumatic electric tools and comprises a chuck mechanism, a drill bit is inserted into the bottom of the chuck mechanism, a fixing mechanism is sleeved on the outer surface of the bottom of the chuck mechanism, and a fastening mechanism is inserted into one end of the fixing mechanism in a threaded penetrating manner. According to the fastening mechanism, the first clamping frame and the second clamping frame are connected to the outer surface of the chuck mechanism in a sleeved mode, the drill bit is inserted into the chuck mechanism, when the first clamping frame and the second clamping frame are tightened through the fastening mechanism, the clamping force on the chuck mechanism is increased, and therefore the drill bit is clamped by the chuck mechanism, and otherwise after the first clamping frame and the second clamping frame are loosened, the drill bit is clamped by the chuck mechanism. The chuck mechanism is simple in structure and convenient to operate, after the screw is tightened, the lock nut is screwed on the portion, protruding out of the ball shaft, of the left end, and the phenomenon that the screw is loosened due to vibration during construction and use is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic electric tools, in particular to a drill chuck for pneumatic electric tools which can be quickly disassembled and assembled. Background Art

[0002] Pneumatic tools are a general term for tools powered by compressed air. Compressed air causes pistons and other parts to produce different movements to work. Linear reciprocating motion produces impact force. Common pneumatic tools include pneumatic picks, etc. Drill chucks are components installed on power tools to fix the drill bit for drilling and other construction operations.

[0003] During construction, the drill bit often needs to be replaced frequently. The drill bit used in existing pneumatic power tools is inconvenient to replace, which delays the construction progress. Therefore, a drill chuck for a pneumatic power tool that can be quickly disassembled and assembled is proposed. Utility Model Content

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A drill chuck for a pneumatic power tool that can be quickly disassembled and assembled comprises a chuck mechanism, a drill bit is inserted into the bottom of the chuck mechanism, a fixing mechanism is sleeved on the outer surface of the bottom of the chuck mechanism, a fastening mechanism is inserted through a thread at one end of the fixing mechanism, the fixing mechanism comprises a first clamping frame; the fastening mechanism comprises a hollow handle; and the chuck mechanism comprises a chuck.

[0006] A further improvement of the technical solution of the utility model is that: a rotating shaft is fixedly installed at one end of the first clamping frame, a second clamping frame is rotatably installed at one end of the first clamping frame through the rotating shaft, a spherical shaft is rotatably installed inside the other end of the first clamping frame, and a fastening sleeve is fixedly installed at one end of the spherical shaft.

[0007] A further improvement of the technical solution of the utility model is that the thread of the fastening mechanism penetrates and inserts the fastening sleeve and the spherical shaft.

[0008] A further improvement of the technical solution of the utility model is that a clamping rod is fixedly installed on the left end of the hollow handle, a screw rod is fixedly installed on the left end of the clamping rod, and a locking nut is threadedly sleeved on the left end of the screw rod.

[0009] A further improvement of the technical solution of the utility model is that the screw thread penetrates the fastening sleeve and the spherical shaft.

[0010] A further improvement of the technical solution of the utility model is that the diameter of the clamping rod is larger than the slot at one end of the fixing mechanism.

[0011] A further improvement of the technical solution of the utility model is that the fastening mechanism is sleeved on the outer surface of the clamping mechanism through the first clamping frame and the second clamping frame.

[0012] A further improvement of the technical solution of the utility model is that: a margin groove is provided on the chuck, and the fixing mechanism is sleeved on the outer surface of the chuck.

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] The utility model provides a drill chuck for a pneumatic power tool which can be quickly disassembled and assembled. A fastening mechanism is sleeved on the outer surface of the chuck mechanism through a first clamping frame and a second clamping frame, and a drill bit is inserted into the chuck mechanism. When the first clamping frame and the second clamping frame are tightened through the fastening mechanism, the clamping force of the chuck mechanism is increased, so that the chuck mechanism clamps the drill bit. Conversely, when the first clamping frame and the second clamping frame are loosened, the force of the chuck mechanism clamping the drill bit is reduced, and the drill bit can be pulled out for replacement. The structure is simple and the operation is convenient.

[0015] The utility model provides a drill chuck for a pneumatic electric tool which can be quickly disassembled and assembled. When the drill bit needs to be clamped, the diameter of the clamping rod is larger than the slot at one end of the fixing mechanism. After the screw thread penetrates the fastening sleeve and the spherical shaft, the tool is penetrated through the hollow handle, and then the hollow handle is rotated to drive the clamping rod and the screw to rotate synchronously, so that the screw is further inserted into the fastening sleeve and the spherical shaft to the left, so that the left end of the clamping rod contacts the right side of the second clamping frame. As the screw is continuously rotated, the clamping rod squeezes and pushes the second clamping frame to move toward the first clamping frame for tightening, thereby tightening the chuck mechanism to clamp the drill bit. After the screw is tightened, the part of the left end protruding from the spherical shaft is screwed with an anti-loosening nut, which effectively prevents the screw from loosening due to vibration during construction and use.

[0016] The utility model provides a drill chuck for a pneumatic electric tool which can be quickly disassembled and assembled. The drill bit is inserted into the chuck, and four margin grooves are provided on the chuck to divide the chuck into four parts. When a fastening mechanism tightens a fixing mechanism, the fixing mechanism clamps the chuck, and the margin grooves make the chuck deform more greatly, which is convenient for clamping or loosening, and the drill bit can be quickly replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a drill chuck for a pneumatic power tool that can be quickly disassembled and assembled according to the utility model;

[0018] Figure 2 It is a schematic diagram of the explosion structure of the drill chuck for pneumatic electric tools that can be quickly disassembled and assembled according to the utility model;

[0019] Figure 3 It is a structural schematic diagram of the fixing mechanism of the utility model;

[0020] Figure 4It is a structural schematic diagram of the fastening mechanism of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the chuck mechanism of the utility model.

[0022] In the figure: 1. chuck mechanism; 2. drill bit; 3. fixing mechanism; 4. fastening mechanism; 31. first clamping frame; 32. rotating shaft; 33. second clamping frame; 34. fastening sleeve; 35. spherical shaft; 41. anti-loosening nut; 42. screw; 43. clamping rod; 44. hollow handle; 11. chuck; 12. allowance groove. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the embodiments: Example 1

[0024] like Figure 1-2 As shown, the utility model provides a drill chuck for a pneumatic power tool that can be quickly disassembled and assembled, including a chuck mechanism 1, a drill bit 2 is inserted into the bottom of the chuck mechanism 1, a fixing mechanism 3 is sleeved on the outer surface of the bottom of the chuck mechanism 1, and a fastening mechanism 4 is inserted through a thread at one end of the fixing mechanism 3. Example 2

[0025] like Figure 3 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the fixing mechanism 3 includes a first clamping frame 31, one end of the first clamping frame 31 is fixedly installed with a rotating shaft 32, one end of the first clamping frame 31 is rotatably installed with a second clamping frame 33 through the rotating shaft 32, the other end of the first clamping frame 31 is internally rotatably installed with a spherical shaft 35, one end of the spherical shaft 35 is fixedly installed with a fastening sleeve 34, the fastening mechanism 4 is threadedly inserted through the fastening sleeve 34 and the spherical shaft 35, and the fastening mechanism 4 is sleeved on the outer surface of the chuck mechanism 1 through the first clamping frame 31 and the second clamping frame 33.

[0026] In this embodiment, the fastening mechanism 4 is sleeved on the outer surface of the chuck mechanism 1 through the first clamping frame 31 and the second clamping frame 33, and the drill bit 2 is inserted into the chuck mechanism 1. When the first clamping frame 31 and the second clamping frame 33 are tightened by the fastening mechanism 4, the clamping force of the chuck mechanism 1 is increased, so that the chuck mechanism 1 clamps the drill bit 2. Conversely, when the first clamping frame 31 and the second clamping frame 33 are loosened, the force of the chuck mechanism 1 clamping the drill bit 2 is reduced, and the drill bit 2 can be pulled out for replacement. The structure is simple and the operation is convenient. Example 3

[0027] like Figure 4As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the fastening mechanism 4 includes a hollow handle 44, a clamping rod 43 is fixedly installed on the left end of the hollow handle 44, a screw 42 is fixedly installed on the left end of the clamping rod 43, a locking nut 41 is threadedly sleeved on the left end of the screw 42, the screw 42 thread passes through the fastening sleeve 34 and the ball shaft 35, and the diameter of the clamping rod 43 is larger than the slot at one end of the fixing mechanism 3.

[0028] The second clamping frame 33 is pressed against the second clamping frame 31 and the second clamping frame 33 is pressed against the second clamping frame 31. The second clamping frame 33 is pressed against the second clamping frame 31 and the second clamping frame 33 is pressed against the second clamping frame 31. The second clamping frame 33 is pressed against the second clamping frame 31 and the second clamping frame 33 is pressed against the second clamping frame 31. The second clamping frame 33 is pressed against the second clamping frame 31 and the second clamping frame 33 is pressed against the second clamping frame 31. The second clamping frame 33 is pressed against the second clamping frame 31 and the second clamping frame 33 is pressed against the second clamping frame 31. The second clamping frame 33 is pressed against the second clamping frame 31 and the second clamping frame 33 is pressed against the second clamping frame 31. The second clamping frame 33 is pressed against the second clamping frame 31 and the second clamping frame 33 is pressed against the second clamping frame 31. The second clamping frame 33 is pressed against the second clamping frame 31 and the second clamping frame 33 is pressed against the second clamping frame 31. The second clamping frame 33 is pressed against the second clamping frame 33 and the second clamping frame 33 is pressed against the second clamping frame 33. Example 4

[0029] like Figure 5 As shown, based on Example 1, the utility model provides a technical solution: preferably, the chuck mechanism 1 includes a chuck 11, a margin groove 12 is provided on the chuck 11, and the fixing mechanism 3 is sleeved on the outer surface of the chuck 11.

[0030] In this embodiment, the drill bit 2 is inserted into the chuck 11, and four margin grooves 12 are provided on the chuck 11, dividing the chuck 11 into four parts. When the fastening mechanism 4 tightens the fixing mechanism 3, the fixing mechanism 3 clamps the chuck 11, and the margin grooves 12 make the chuck 11 deform more greatly, which is convenient for clamping or loosening, and the drill bit 2 can be quickly replaced.

[0031] The working principle of the drill chuck for pneumatic power tools that can be quickly disassembled and assembled will be described in detail below.

[0032] like Figure 1-5As shown, the fastening mechanism 4 is sleeved on the outer surface of the chuck mechanism 1 through the first clamping frame 31 and the second clamping frame 33, and the drill bit 2 is inserted into the chuck mechanism 1. When the first clamping frame 31 and the second clamping frame 33 are tightened by the fastening mechanism 4, the clamping force of the chuck mechanism 1 is increased, so that the chuck mechanism 1 clamps the drill bit 2. On the contrary, after the first clamping frame 31 and the second clamping frame 33 are loosened, the clamping force of the chuck mechanism 1 clamping the drill bit 2 is reduced, and the drill bit 2 can be pulled out for replacement. The structure is simple and the operation is convenient. When the drill bit 2 needs to be clamped, the diameter of the clamping rod 43 is larger than the slot at one end of the fixing mechanism 3. After the screw rod 42 is threaded through the fastening sleeve 34 and the ball shaft 35, the tool is passed through the hollow handle 44, and then the hollow handle 44 is rotated to drive the clamping rod 43 and the screw 42 to rotate synchronously, so that the screw 4 2 is further inserted to the left in the fastening sleeve 34 and the spherical shaft 35, so that the left end of the clamping rod 43 contacts the right side of the second clamping frame 33. As the screw rod 42 is continuously rotated, the clamping rod 43 squeezes and pushes the second clamping frame 33 to move toward the first clamping frame 31 for tightening, thereby tightening the chuck mechanism 1 to fasten and clamp the drill bit 2. After the screw rod 42 is tightened, the part of the left end protruding from the spherical shaft 35 is screwed with the anti-loosening nut 41, which effectively prevents the screw rod 42 from loosening due to vibration during construction and use. The drill bit 2 is inserted into the chuck 11, and four margin grooves 12 are opened on the chuck 11, which divides the chuck 11 into four parts. When the fastening mechanism 4 tightens the fixing mechanism 3, the fixing mechanism 3 clamps the chuck 11, and the margin grooves 12 make the chuck 11 deformed more, which is convenient for clamping or loosening, and the drill bit 2 can be quickly replaced.

[0033] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A drill chuck for a pneumatic power tool that can be quickly disassembled and assembled, comprising a chuck mechanism (1), characterized in that: A drill bit (2) is inserted into the bottom of the chuck mechanism (1); a fixing mechanism (3) is sleeved on the outer surface of the bottom of the chuck mechanism (1); a fastening mechanism (4) is inserted and threadedly penetrated through one end of the fixing mechanism (3); the fixing mechanism (3) comprises a first clamping frame (31); the fastening mechanism (4) comprises a hollow handle (44); and the chuck mechanism (1) comprises a chuck (11).

2. The drill chuck for a pneumatic power tool that can be quickly disassembled and assembled according to claim 1, characterized in that: A rotating shaft (32) is fixedly mounted on one end of the first clamping frame (31); a second clamping frame (33) is rotatably mounted on one end of the first clamping frame (31) via the rotating shaft (32); a spherical shaft (35) is rotatably mounted inside the other end of the first clamping frame (31); a fastening sleeve (34) is fixedly mounted on one end of the spherical shaft (35).

3. The drill chuck for a pneumatic power tool that can be quickly disassembled and assembled according to claim 2, characterized in that: The fastening mechanism (4) is threadedly inserted into the fastening sleeve (34) and the spherical shaft (35).

4. The quickly disassembled drill chuck for pneumatic power tools according to claim 1, characterized in that: A clamping rod (43) is fixedly mounted on the left end of the hollow handle (44), a screw rod (42) is fixedly mounted on the left end of the clamping rod (43), and a locking nut (41) is threadedly sleeved on the left end of the screw rod (42).

5. The drill chuck for a pneumatic power tool that can be quickly disassembled and assembled according to claim 4, characterized in that: The screw rod (42) threads through the fastening sleeve (34) and the spherical shaft (35).

6. The drill chuck for a pneumatic power tool that can be quickly disassembled and assembled according to claim 4, characterized in that: The diameter of the clamping rod (43) is larger than the slot at one end of the fixing mechanism (3).

7. The quickly disassembled drill chuck for pneumatic power tools according to claim 2, characterized in that: The fastening mechanism (4) is sleeved on the outer surface of the clamping mechanism (1) via a first clamping frame (31) and a second clamping frame (33).

8. The quickly detachable drill chuck for pneumatic power tools according to claim 1, characterized in that: The chuck (11) is provided with a margin groove (12), and the fixing mechanism (3) is sleeved on the outer surface of the chuck (11).

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